/* ========================================
   点金智推主题 - 自定义样式
   通用基础样式 + 各页面专用样式
   ======================================== */

/* ===== CSS 变量 ===== */
:root {
  --blue: #2563eb;
  --cyan: #06b6d4;
  --blue-deep: #1d4ed8;
  --purple: #7c3aed;
  --ink: #1e293b;
  --ink-soft: #64748b;
  --ink-faint: #94a3b8;
  --surface: #fff;
  --surface-2: #f8fafc;
  --surface-line: #e2e8f0;
  --bg: #f5f6f8;
  --bg-2: #eef2f7;
  --ease: cubic-bezier(.4,0,.2,1);
}

/* ===== Reset & 基础样式 ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.7;
}

img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

/* ===== 容器 ===== */
.container {
  max-width: 1350px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ===== 导航 ===== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(248, 250, 252, .9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--surface-line);
}
.nav-inner {
  max-width: 1350px;
  margin: 0 auto;
  padding: 14px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-size: 1.1rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: flex;
  align-items: center;
}
.nav-logo img {
  height: 32px;
  width: auto;
  display: block;
}
.nav-links {
  display: flex;
  gap: 28px;
  list-style: none;
}
.nav-links a {
  text-decoration: none;
  color: var(--ink-soft);
  font-size: .92rem;
  font-weight: 500;
  transition: color .3s;
}
.nav-links a:hover, .nav-links a.active { color: var(--blue); }
.nav-links .nav-item {
  position: relative;
  list-style: none;
}
.nav-links .nav-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  text-decoration: none;
  color: var(--ink-soft);
  font-size: .92rem;
  font-weight: 500;
  transition: color .3s;
  padding: 8px 0;
}
.nav-links .nav-link:hover,
.nav-links .nav-link.active {
  color: var(--blue);
}
.nav-links .has-children .nav-arrow {
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 4px solid currentColor;
  opacity: .6;
  transition: transform .3s;
}
.nav-links .has-children:hover .nav-arrow {
  transform: rotate(180deg);
}
.nav-links .sub-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 180px;
  padding: 8px;
  background: #fff;
  border: 1px solid var(--surface-line);
  border-radius: 16px;
  box-shadow: 0 12px 40px rgba(18, 35, 52, 0.12);
  list-style: none;
  opacity: 0;
  visibility: hidden;
  transition: all .3s var(--ease);
  z-index: 10;
}
.nav-links .nav-item:hover > .sub-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}
.nav-links .sub-menu .nav-item {
  width: 100%;
}
.nav-links .sub-menu .nav-link {
  display: block;
  width: 100%;
  padding: 10px 16px;
  border-radius: 10px;
  font-size: .88rem;
  white-space: nowrap;
}
.nav-links .sub-menu .nav-link:hover {
  background: var(--surface-2);
  color: var(--blue);
}
.nav-cta {
  padding: 10px 22px;
  background-color: var(--blue);
  background-image: linear-gradient(135deg, var(--blue), var(--cyan));
  color: #fff;
  border-radius: 999px;
  font-size: .85rem;
  font-weight: 600;
  text-decoration: none;
  box-shadow: 0 4px 16px rgba(0, 119, 236, 0.3);
  transition: all .3s var(--ease);
}
.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 119, 236, 0.4);
}
.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.4rem;
  cursor: pointer;
  color: var(--ink);
  padding: 4px 8px;
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-size: .92rem;
  font-weight: 600;
  text-decoration: none;
  transition: all .3s var(--ease);
  cursor: pointer;
  border: none;
}
.btn-primary {
  background-color: var(--blue);
  background-image: linear-gradient(135deg, var(--blue), var(--cyan));
  color: #fff;
  box-shadow: 0 6px 24px rgba(0, 119, 236, 0.3);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 32px rgba(0, 119, 236, 0.4);
}
.btn-secondary,
.btn-outline {
  background: #fff;
  color: var(--ink);
  border: 1px solid var(--surface-line);
  box-shadow: 0 2px 8px rgba(18, 35, 52, 0.04);
}
.btn-secondary:hover,
.btn-outline:hover {
  border-color: var(--blue);
  color: var(--blue);
}
.btn-white {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 16px 36px;
  background: #fff;
  color: var(--blue);
  border-radius: 999px;
  font-weight: 600;
  text-decoration: none;
  transition: all .3s var(--ease);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}
.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
}

/* ===== Section 基础样式 ===== */
.section {
  padding: 80px 0;
}
.section.alt {
  background: var(--surface-2);
}
.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 56px;
}
.section-label {
  display: inline-block;
  font-size: .78rem;
  letter-spacing: .18em;
  color: var(--blue);
  font-weight: 500;
  padding: 8px 18px;
  border: 1px solid #aed3f3;
  border-radius: 999px;
  background: #fff;
  margin-bottom: 16px;
}
.section-title {
  font-size: clamp(1.8rem, 3.6vw, 2.6rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -.02em;
  color: var(--ink);
  margin-bottom: 16px;
}
.section-desc {
  font-size: 1rem;
  color: var(--ink-soft);
  line-height: 1.8;
}

/* ===== 面包屑 ===== */
.breadcrumb {
  font-size: .85rem;
  color: var(--ink-faint);
  margin-bottom: 24px;
}
.breadcrumb a {
  color: var(--ink-soft);
  text-decoration: none;
  transition: color .3s;
}
.breadcrumb a:hover { color: var(--blue); }
.breadcrumb span { margin: 0 8px; color: var(--ink-faint); }
.breadcrumb .current { color: var(--blue); font-weight: 500; }

/* ===== CTA Section ===== */
.cta-section {
  padding: 80px 0;
}
.cta-card {
  background-color: var(--blue);
  background-image: linear-gradient(135deg, var(--blue), var(--cyan));
  border-radius: 28px;
  padding: 64px 48px;
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
  box-shadow: 0 30px 60px -20px rgba(0, 119, 236, 0.4);
}
.cta-card::before {
  content: '';
  position: absolute;
  top: -50%; right: -20%;
  width: 60%; aspect-ratio: 1;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
}
.cta-card::after {
  content: '';
  position: absolute;
  bottom: -40%; left: -10%;
  width: 50%; aspect-ratio: 1;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 50%;
}
.cta-label {
  position: relative;
  z-index: 2;
  display: inline-block;
  font-size: .78rem;
  letter-spacing: .18em;
  color: #caf7ff;
  font-weight: 500;
  padding: 8px 18px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 999px;
  margin-bottom: 20px;
}
.cta-card h2 {
  position: relative;
  z-index: 2;
  font-size: clamp(1.8rem, 3.6vw, 2.6rem);
  font-weight: 700;
  margin-bottom: 16px;
  line-height: 1.3;
}
.cta-card p {
  position: relative;
  z-index: 2;
  font-size: 1.05rem;
  opacity: .9;
  margin-bottom: 32px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.8;
}
.cta-card .btn {
  position: relative;
  z-index: 2;
  background: #fff;
  color: var(--blue);
  padding: 16px 36px;
  font-weight: 600;
}
.cta-card .btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
}
.cta-card .btn-white {
  position: relative;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 16px 36px;
  background: #fff;
  color: var(--blue);
  border-radius: 999px;
  font-weight: 600;
  text-decoration: none;
  transition: all .3s var(--ease);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}
.cta-card .btn-white:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--ink);
  color: #b5bfcb;
  padding: clamp(3.2rem, 7vw, 5rem) 0 2.4rem;
  margin-top: clamp(3rem, 7vw, 5rem);
  position: relative;
}
.site-footer-inner {
  max-width: 1350px;
  margin: 0 auto;
  padding: 0 32px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 2fr;
  gap: 2.4rem;
  align-items: start;
}
.site-footer .brand {
  color: #fff;
  margin-bottom: 1rem;
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: .03em;
  text-decoration: none;
  display: inline-block;
}
.site-footer .brand-text { display: inline-block; }
.sf-desc {
  font-size: .95rem;
  color: #d3d8de;
  max-width: 34ch;
  line-height: 1.7;
}
.sf-tel {
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 800;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin: .8rem 0 .3rem;
}
.sf-muted {
  font-size: .85rem;
  color: #9ea5ae;
}
.sf-qr {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .7rem;
  justify-self: center;
  text-align: center;
}
.qr-box {
  width: 128px;
  height: 128px;
  background: #fff;
  border-radius: 12px;
  padding: 8px;
  box-shadow: 0 10px 30px rgba(7, 22, 44, 0.4);
}
.qr-label {
  font-size: .82rem;
  color: #b1b8c1;
  letter-spacing: .05em;
}
.sf-links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.4rem 1rem;
  align-items: start;
}
.sf-group h4 {
  color: #fff;
  font-size: .95rem;
  margin-bottom: .9rem;
  font-weight: 600;
}
.sf-group a {
  display: block;
  color: #c7ced8;
  font-size: .9rem;
  margin-bottom: .6rem;
  transition: color .2s;
  text-decoration: none;
}
.sf-group a:hover { color: #fff; }
.sf-bottom {
  border-top: 1px solid #313b4a;
  margin-top: 2.6rem;
  padding: 1.4rem 32px 0;
  font-size: .8rem;
  color: #899098;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  max-width: 1350px;
  margin-left: auto;
  margin-right: auto;
}
.sf-beian {
  display: flex;
  gap: 1.2rem;
  align-items: center;
}
.sf-beian a {
  color: #899098;
  transition: color .2s;
  text-decoration: none;
}
.sf-beian a:hover { color: #fff; }

/* ===== 滚动揭示动画 ===== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .8s cubic-bezier(.4,0,.2,1), transform .8s cubic-bezier(.4,0,.2,1);
}
.reveal.in {
  opacity: 1;
  transform: translateY(0);
}
.reveal.d1 { transition-delay: .08s; }
.reveal.d2 { transition-delay: .16s; }
.reveal.d3 { transition-delay: .24s; }
.reveal.d4 { transition-delay: .32s; }
.reveal.d5 { transition-delay: .4s; }

/* ===== 通用动画关键帧 ===== */
@keyframes spin {
  from { transform: translate(-50%, -50%) rotate(0deg); }
  to { transform: translate(-50%, -50%) rotate(360deg); }
}
@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: .6; }
  50% { transform: scale(1.08); opacity: .2; }
}

/* ========================================
   页面专用样式
   ======================================== */

/* ===== Hero 公共样式 ===== */
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 60px;
  align-items: center;
}
.hero h1 .gradient {
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-badge {
  display: inline-block;
  padding: 8px 18px;
  background: linear-gradient(135deg, #d8eeff, #d2f5ff);
  border: 1px solid #aed3f3;
  border-radius: 999px;
  font-size: .82rem;
  font-weight: 500;
  color: var(--blue);
  margin-bottom: 22px;
}
.hero-desc {
  color: var(--ink-soft);
  max-width: 520px;
  line-height: 1.8;
  margin-bottom: 32px;
}
.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.hero-visual {
  position: relative;
  width: 100%;
}
.hero-card {
  position: relative;
  background-color: #e8f5e9;
  background-image: linear-gradient(160deg, #122334, #0a1723);
  border-radius: 20px;
  box-shadow: 0 30px 60px -20px rgba(0, 34, 70, 0.4);
  border: 1px solid #233d53;
}
.hero-card::before {
  content: '';
  position: absolute;
  top: -1px;
  right: -1px;
  bottom: -1px;
  left: -1px;
  inset: -1px;
  border-radius: 20px;
  padding: 1px;
  background: linear-gradient(135deg, rgba(0, 119, 236, 0.5), rgba(0, 186, 197, 0.3));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

/* ===== 首页专用样式 .page-home ===== */
.page-home .hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background-color: var(--bg);
  background-image:
    radial-gradient(ellipse at 20% 0%, rgba(193, 226, 255, 0.5), transparent 50%),
    radial-gradient(ellipse at 80% 30%, rgba(175, 235, 238, 0.4), transparent 50%);
  position: relative;
  overflow: hidden;
  padding: 120px 0 80px;
}
.page-home .hero-content {
  text-align: left;
}
.page-home .hero h1 {
  font-size: clamp(2rem, 5.5vw, 3.8rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -.02em;
  margin-bottom: 22px;
}
.page-home .hero-desc {
  font-size: 1.08rem;
}
.page-home .hero-actions {
  margin-bottom: 36px;
}
.page-home .hero-stats {
  display: flex;
  gap: 32px;
  padding-top: 28px;
  border-top: 1px solid var(--surface-line);
}
.page-home .hero-stat-item .num {
  font-size: 1.8rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 4px;
}
.page-home .hero-stat-item .label {
  font-size: .85rem;
  color: var(--ink-faint);
}

/* 首页 Hero 视觉 */
.page-home .hero-visual {
  position: relative;
  width: 100%;
}
.page-home .hero-ai-card {
  position: relative;
  background-color: #e8f5e9;
  background-image: linear-gradient(160deg, #122334, #0a1723);
  border-radius: 20px;
  padding: 24px 26px;
  box-shadow: 0 30px 60px -20px rgba(0, 34, 70, 0.4);
  border: 1px solid #233d53;
  z-index: 2;
}
.page-home .hero-ai-card::before {
  content: '';
  position: absolute;
  top: -1px;
  right: -1px;
  bottom: -1px;
  left: -1px;
  inset: -1px;
  border-radius: 20px;
  padding: 1px;
  background: linear-gradient(135deg, rgba(0, 119, 236, 0.5), rgba(0, 186, 197, 0.3));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}
.page-home .hero-ai-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid #2d3c49;
}
.page-home .ai-dot {
  width: 9px; height: 9px;
  border-radius: 50%;
  background: #1f74bf;
}
.page-home .ai-dot:nth-child(2) { background: #00a2ce; }
.page-home .ai-dot:nth-child(3) { background: #544ec5; }
.page-home .ai-title {
  margin-left: auto;
  font-size: .75rem;
  color: #77818c;
  font-weight: 500;
}
.page-home .hero-ai-q {
  padding: 12px 16px;
  background: #21303c;
  border-radius: 12px;
  font-size: .88rem;
  color: #c4cfdb;
  margin-bottom: 12px;
}
.page-home .hero-ai-q b { color: #fff; }
.page-home .hero-ai-a {
  padding: 14px 16px;
  background-color: #dff0e3;
  background-image: linear-gradient(135deg, #1b2a3a, #162631);
  border-radius: 12px;
  font-size: .86rem;
  color: #aeb9c4;
  line-height: 1.75;
  border: 1px solid #283d4e;
}
.page-home .hero-ai-a mark {
  background: linear-gradient(135deg, rgba(0, 119, 236, 0.35), rgba(0, 186, 197, 0.3));
  color: #7dddfb;
  padding: 2px 6px;
  border-radius: 4px;
  font-weight: 600;
}
.page-home .hero-ai-tags {
  display: flex;
  gap: 8px;
  margin-top: 16px;
  flex-wrap: wrap;
}
.page-home .hero-ai-tags span {
  padding: 5px 12px;
  background-color: rgba(20, 50, 80, 0.45);
  background-image: linear-gradient(135deg, rgba(34, 74, 113, 0.5), rgba(0, 81, 101, 0.4));
  border-radius: 999px;
  font-size: .72rem;
  color: #93c7d9;
  font-weight: 500;
  border: 1px solid rgba(41, 104, 152, 0.3);
}
.page-home .hero-float-card {
  position: absolute;
  background: #fff;
  border-radius: 14px;
  padding: 14px 18px;
  box-shadow: 0 20px 40px -12px rgba(0, 34, 70, 0.2);
  border: 1px solid var(--surface-line);
  z-index: 3;
}
.page-home .hero-float-card.top-right {
  top: -20px;
  right: -30px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.page-home .hero-float-card.bottom-left {
  bottom: -10px;
  left: -30px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.page-home .float-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background-color: #c4eaff;
  background-image: linear-gradient(135deg, #d3efff, #c4f0ff);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}
.page-home .float-text .t {
  font-size: .85rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 2px;
}
.page-home .float-text .s {
  font-size: .75rem;
  color: var(--ink-faint);
}
.page-home .hero-float-card .up {
  color: #25984d;
  font-weight: 700;
  font-size: .85rem;
  margin-left: auto;
}

/* 首页 - 痛点模块 */
.page-home .pain-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin: 0 0 32px;
}
.page-home .pain-item {
  padding: 28px 24px;
  border-radius: 20px;
  background-color: #f2f9ff;
  background-image: linear-gradient(160deg, #fff, #eaf7ff);
  border: 1px solid var(--surface-line);
  transition: all .35s var(--ease);
}
.page-home .pain-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 32px -12px rgba(0, 114, 213, 0.2);
}
.page-home .pain-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 18px;
}
.page-home .pain-icon.green {
  background-color: #ceefd6;
  background-image: linear-gradient(135deg, #cdf0cd, #cff6e0);
}
.page-home .pain-icon.yellow {
  background-color: #fde9b7;
  background-image: linear-gradient(135deg, #fde6ab, #ffebc2);
}
.page-home .pain-icon.red {
  background-color: #ffd9d4;
  background-image: linear-gradient(135deg, #ffd3cd, #ffe0d8);
}
.page-home .pain-item h4 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--ink);
}
.page-home .pain-item p {
  font-size: .88rem;
  color: var(--ink-soft);
  line-height: 1.7;
}
.page-home .pain-summary {
  text-align: center;
  font-size: 1rem;
  color: var(--ink-soft);
  font-weight: 500;
}
.page-home .pain-summary strong {
  color: var(--blue);
  font-weight: 600;
}

/* 首页 - 双引擎模块 */
.page-home .dual-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 32px;
  align-items: stretch;
}
.page-home .dual-col {
  background: #fff;
  border: 1px solid var(--surface-line);
  border-radius: 24px;
  padding: 36px 32px;
  transition: all .35s var(--ease);
}
.page-home .dual-col.primary {
  position: relative;
  background-color: #f3f9ff;
  background-image: linear-gradient(160deg, #fff, #ebf7ff);
}
.page-home .dual-col.primary::before {
  content: '';
  position: absolute;
  top: -1px;
  right: -1px;
  bottom: -1px;
  left: -1px;
  inset: -1px;
  border-radius: 24px;
  padding: 2px;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}
.page-home .dual-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.page-home .dual-icon {
  font-size: 1.8rem;
}
.page-home .dual-header h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--ink);
}
.page-home .dual-badge {
  margin-left: auto;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: .72rem;
  font-weight: 600;
  background-color: #cbefff;
  background-image: linear-gradient(135deg, #d3efff, #c4f0ff);
  color: var(--ink-soft);
}
.page-home .dual-badge.primary {
  background-color: var(--blue);
  background-image: linear-gradient(135deg, var(--blue), var(--cyan));
  color: #fff;
}
.page-home .dual-list {
  list-style: none;
}
.page-home .dual-list li {
  padding: 14px 0;
  border-bottom: 1px dashed var(--surface-line);
}
.page-home .dual-list li:last-child { border-bottom: none; }
.page-home .dl-title {
  font-size: .92rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 6px;
}
.page-home .dl-detail {
  font-size: .85rem;
  color: var(--ink-soft);
  line-height: 1.7;
}
.page-home .dual-divider {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.page-home .dual-vs {
  width: 56px; height: 56px;
  border-radius: 50%;
  background-color: var(--blue);
  background-image: linear-gradient(135deg, var(--blue), var(--cyan));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.4rem;
  box-shadow: 0 8px 24px rgba(0, 119, 236, 0.3);
}
.page-home .dual-vs-label {
  writing-mode: vertical-rl;
  font-size: .78rem;
  color: var(--ink-faint);
  letter-spacing: .2em;
}

/* 首页 - 如何工作模块 */
.page-home .how-section {
  background: #fff;
  border-radius: 28px;
  border: 1px solid var(--surface-line);
  padding: 56px 52px;
  box-shadow: 0 1px 3px rgba(18, 35, 52, 0.04), 0 20px 40px -20px rgba(0, 34, 70, 0.08);
}
.page-home .how-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 60px;
  align-items: center;
}
.page-home .how-visual {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
  border-radius: 24px;
  background-color: #fff;
  background-image: radial-gradient(circle at 50% 50%, #dcf5ff, #fff 70%);
  border: 1px solid var(--surface-line);
  overflow: hidden;
}
.page-home .how-visual::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  inset: 0;
  background-image:
    linear-gradient(rgba(179, 210, 237, 0.3) 1px, transparent 1px),
    linear-gradient(90deg, rgba(179, 210, 237, 0.3) 1px, transparent 1px);
  background-size: 36px 36px;
  -webkit-mask-image: radial-gradient(circle at center, black 55%, transparent 85%);
  mask-image: radial-gradient(circle at center, black 55%, transparent 85%);
}
.page-home .how-center {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  z-index: 5;
}
.page-home .how-center h3 {
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 700;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 4px;
}
.page-home .how-center p {
  font-size: .85rem;
  color: var(--ink-soft);
  letter-spacing: .1em;
}
.page-home .how-ring {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  border: 2px solid;
  border-color: rgba(118, 181, 233, 0.4) rgba(118, 181, 233, 0.2) rgba(118, 181, 233, 0.3) rgba(118, 181, 233, 0.15);
}
.page-home .how-ring.r1 { width: 50%; aspect-ratio: 1; animation: spin 20s linear infinite; }
.page-home .how-ring.r2 { width: 72%; aspect-ratio: 1; border-style: dashed; border-color: rgba(116, 164, 205, 0.25); animation: spin 30s linear infinite reverse; }
.page-home .how-ring.r3 { width: 90%; aspect-ratio: 1; border-style: dotted; border-color: rgba(116, 164, 205, 0.15); animation: spin 40s linear infinite; }
.page-home .how-dot {
  position: absolute;
  width: 14px; height: 14px;
  border-radius: 50%;
  background-color: var(--blue);
  background-image: linear-gradient(135deg, var(--blue), var(--cyan));
  box-shadow: 0 0 16px rgba(12, 132, 250, 0.5);
  z-index: 3;
}
.page-home .how-dot.d1 { top: 12%; left: 50%; transform: translateX(-50%); }
.page-home .how-dot.d2 { top: 28%; right: 16%; }
.page-home .how-dot.d3 { bottom: 28%; right: 16%; }
.page-home .how-dot.d4 { bottom: 12%; left: 50%; transform: translateX(-50%); }
.page-home .how-dot.d5 { bottom: 28%; left: 16%; }
.page-home .how-dot.d6 { top: 28%; left: 16%; }
.page-home .how-text .label {
  display: inline-block;
  font-size: .78rem;
  letter-spacing: .18em;
  color: var(--blue);
  font-weight: 500;
  margin-bottom: 12px;
}
.page-home .how-text h2 {
  font-size: clamp(1.8rem, 3.2vw, 2.4rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -.02em;
  margin-bottom: 32px;
  color: var(--ink);
}
.page-home .how-steps { list-style: none; }
.page-home .how-step {
  display: flex;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px dashed var(--surface-line);
}
.page-home .how-step:last-child { border-bottom: none; }
.page-home .how-step-icon {
  flex-shrink: 0;
  width: 56px; height: 56px;
  border-radius: 16px;
  background-color: #c7f0ff;
  background-image: linear-gradient(135deg, #ceefff, #bff5ff);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
}
.page-home .how-step-icon .num {
  font-size: .7rem;
  font-weight: 700;
  color: var(--blue);
  letter-spacing: .05em;
}
.page-home .how-step-icon .ico {
  font-size: 1.2rem;
}
.page-home .how-step-content h4 {
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 6px;
}
.page-home .how-step-content p {
  font-size: .88rem;
  color: var(--ink-soft);
  line-height: 1.7;
}

/* 首页 - 数据统计模块 */
.page-home .stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.page-home .stat-item {
  text-align: center;
  padding: 32px 20px;
  background: #fff;
  border: 1px solid var(--surface-line);
  border-radius: 20px;
  transition: all .35s var(--ease);
  position: relative;
  overflow: hidden;
}
.page-home .stat-item::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blue), var(--cyan));
  opacity: 0;
  transition: opacity .35s var(--ease);
}
.page-home .stat-item:hover {
  transform: translateY(-6px);
  border-color: #7fbef3;
  box-shadow: 0 20px 40px -16px rgba(0, 114, 213, 0.2);
}
.page-home .stat-item:hover::before { opacity: 1; }
.page-home .stat-item .num {
  font-size: clamp(2rem, 4.5vw, 2.8rem);
  font-weight: 700;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
  margin-bottom: 8px;
  display: block;
}
.page-home .stat-item .lbl {
  font-size: .92rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 6px;
  display: block;
}
.page-home .stat-item .desc {
  font-size: .82rem;
  color: var(--ink-faint);
  line-height: 1.5;
}

/* 首页 - 案例卡片 */
.page-home .case-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.page-home .case-card {
  background: #fff;
  border: 1px solid var(--surface-line);
  border-radius: 20px;
  overflow: hidden;
  transition: all .35s var(--ease);
}
.page-home .case-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 24px 48px -16px rgba(0, 114, 213, 0.25);
  border-color: #7fbef3;
}
.page-home .case-thumb {
  aspect-ratio: 4/3;
  background-color: #89d9f8;
  background-image: linear-gradient(135deg, #9bd3ff, #77e0f2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  position: relative;
  overflow: hidden;
}
.page-home .case-thumb::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  inset: 0;
  background:
    radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.2), transparent 50%),
    radial-gradient(circle at 70% 70%, rgba(255, 255, 255, 0.15), transparent 50%);
}
.page-home .case-thumb span { position: relative; z-index: 2; }
.page-home .case-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: relative;
  z-index: 1;
}
.page-home .case-body {
  padding: 24px;
}
.page-home .case-tag {
  display: inline-block;
  padding: 4px 12px;
  background-color: #cbefff;
  background-image: linear-gradient(135deg, #d3efff, #c4f0ff);
  border-radius: 999px;
  font-size: .75rem;
  color: var(--blue);
  font-weight: 500;
  margin-bottom: 12px;
}
.page-home .case-card h4 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 10px;
  line-height: 1.4;
}
.page-home .case-card p {
  font-size: .88rem;
  color: var(--ink-soft);
  line-height: 1.7;
  margin-bottom: 16px;
}
.page-home .case-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: .85rem;
  font-weight: 600;
  color: var(--blue);
  text-decoration: none;
  transition: gap .3s;
}
.page-home .case-link:hover { gap: 10px; }

/* ===== 关于我们页专用样式 .page-about ===== */
.page-about .hero {
  padding: 140px 0 80px;
  background:
    radial-gradient(ellipse at 20% 0%, rgba(193, 226, 255, 0.5), transparent 50%),
    radial-gradient(ellipse at 80% 30%, rgba(175, 235, 238, 0.4), transparent 50%),
    var(--bg);
  position: relative;
  overflow: hidden;
}
.page-about .hero-stats {
  display: flex;
  gap: 36px;
  margin-top: 36px;
  padding-top: 28px;
  border-top: 1px solid var(--surface-line);
}
.page-about .hero-stat .num {
  font-size: 1.8rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
  margin-bottom: 4px;
}
.page-about .hero-stat .label {
  font-size: .82rem;
  color: var(--ink-faint);
}

.page-about .hero-visual {
  position: relative;
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
  aspect-ratio: 1;
}
.page-about .hero-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: .5;
}
.page-about .hero-blob.b1 {
  width: 70%;
  height: 70%;
  top: 5%;
  right: 5%;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
}
.page-about .hero-blob.b2 {
  width: 50%;
  height: 50%;
  bottom: 10%;
  left: 5%;
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  opacity: .35;
}
.page-about .hero-circle {
  position: absolute;
  border-radius: 50%;
  border: 2px solid #cbd5e1;
  background: rgba(255, 255, 255, .6);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--blue);
  text-align: center;
}
.page-about .hero-circle small {
  font-size: .65rem;
  font-weight: 400;
  color: var(--ink-faint);
  margin-top: 2px;
}
.page-about .hero-circle.c1 {
  width: 120px;
  height: 120px;
  top: 15%;
  left: 10%;
  font-size: 1.4rem;
  box-shadow: 0 20px 40px -10px rgba(0, 119, 236, 0.2);
}
.page-about .hero-circle.c2 {
  width: 90px;
  height: 90px;
  top: 55%;
  right: 8%;
  font-size: 1.1rem;
  box-shadow: 0 16px 32px -8px rgba(0, 186, 197, 0.25);
  color: var(--cyan);
}
.page-about .hero-circle.c3 {
  width: 70px;
  height: 70px;
  bottom: 12%;
  left: 25%;
  font-size: .9rem;
  box-shadow: 0 12px 24px -6px rgba(116, 116, 239, 0.2);
  color: var(--purple);
}

/* 公司概述卡片 */
.page-about .overview-card {
  background: #fff;
  border-radius: 28px;
  border: 1px solid var(--surface-line);
  padding: 56px 52px;
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 60px;
  align-items: center;
  box-shadow: 0 1px 3px rgba(18, 35, 52, 0.04), 0 20px 40px -20px rgba(0, 34, 70, 0.08);
}
.page-about .overview-text .label {
  display: inline-block;
  font-size: .78rem;
  letter-spacing: .18em;
  color: var(--blue);
  font-weight: 500;
  margin-bottom: 12px;
}
.page-about .overview-text h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -.02em;
  margin-bottom: 24px;
  color: var(--ink);
}
.page-about .overview-text p {
  font-size: .95rem;
  color: var(--ink-soft);
  line-height: 1.9;
  margin-bottom: 18px;
}
.page-about .overview-text p:last-child { margin-bottom: 0; }
.page-about .overview-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.page-about .overview-stat {
  background: linear-gradient(160deg, #fff, #e7f4ff);
  border: 1px solid var(--surface-line);
  border-radius: 20px;
  padding: 28px 20px;
  text-align: center;
  transition: all .35s var(--ease);
  position: relative;
  overflow: hidden;
}
.page-about .overview-stat::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blue), var(--cyan));
  opacity: 0;
  transition: opacity .35s var(--ease);
}
.page-about .overview-stat:hover {
  transform: translateY(-4px);
  border-color: #7fbef3;
  box-shadow: 0 16px 32px -12px rgba(0, 114, 213, 0.25);
}
.page-about .overview-stat:hover::before { opacity: 1; }
.page-about .overview-stat .num {
  font-size: clamp(1.8rem, 3.5vw, 2.4rem);
  font-weight: 700;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
  margin-bottom: 8px;
}
.page-about .overview-stat .lbl {
  font-size: .88rem;
  color: var(--ink-soft);
}

/* 发展历程时间轴 */
.page-about .section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 60px;
}
.page-about .section-label {
  display: inline-block;
  font-size: .78rem;
  letter-spacing: .18em;
  color: var(--blue);
  font-weight: 500;
  margin-bottom: 12px;
}
.page-about .section-title {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -.02em;
  margin-bottom: 16px;
  color: var(--ink);
}
.page-about .section-desc {
  font-size: .95rem;
  color: var(--ink-soft);
  line-height: 1.8;
}

.page-about .timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
}
.page-about .timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--blue), var(--cyan));
  transform: translateX(-50%);
  opacity: .3;
}
.page-about .timeline-item {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 32px;
  position: relative;
  margin-bottom: 48px;
}
.page-about .timeline-item:last-child { margin-bottom: 0; }
.page-about .timeline-dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  border: 4px solid #fff;
  box-shadow: 0 0 0 2px var(--blue);
  position: relative;
  z-index: 2;
  align-self: start;
  margin-top: 8px;
}
.page-about .timeline-content {
  background: #fff;
  border: 1px solid var(--surface-line);
  border-radius: 20px;
  padding: 28px;
  box-shadow: 0 8px 24px -12px rgba(0, 34, 70, 0.15);
  transition: all .35s var(--ease);
}
.page-about .timeline-content:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 32px -12px rgba(0, 114, 213, 0.2);
}
.page-about .timeline-left {
  text-align: right;
  border-right: 3px solid var(--blue);
}
.page-about .timeline-right {
  text-align: left;
  border-left: 3px solid var(--cyan);
}
.page-about .timeline-year {
  font-size: .85rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
  letter-spacing: .02em;
}
.page-about .timeline-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--ink);
}
.page-about .timeline-desc {
  font-size: .9rem;
  color: var(--ink-soft);
  line-height: 1.75;
  margin: 0;
}
.page-about .timeline-empty { visibility: hidden; }

/* 核心业务模块 */
.page-about .business-intro {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 56px;
}
.page-about .business-intro .section-label {
  display: inline-block;
  font-size: .78rem;
  letter-spacing: .18em;
  color: var(--blue);
  font-weight: 500;
  margin-bottom: 12px;
}
.page-about .business-intro h2 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -.02em;
  margin-bottom: 20px;
  color: var(--ink);
}
.page-about .business-intro p {
  font-size: .98rem;
  color: var(--ink-soft);
  line-height: 1.9;
}

.page-about .modules-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 28px;
}
.page-about .module-card {
  background: #fff;
  border: 1px solid var(--surface-line);
  border-radius: 22px;
  padding: 36px 28px;
  transition: all .35s var(--ease);
  position: relative;
  overflow: hidden;
}
.page-about .module-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--blue), var(--cyan));
  opacity: 0;
  transition: opacity .35s var(--ease);
}
.page-about .module-card:nth-child(2)::before {
  background: linear-gradient(90deg, var(--cyan), var(--purple));
}
.page-about .module-card:nth-child(3)::before {
  background: linear-gradient(90deg, var(--purple), var(--blue));
}
.page-about .module-card:nth-child(4)::before {
  background: linear-gradient(90deg, #f59e0b, var(--cyan));
}
.page-about .module-card:nth-child(5)::before {
  background: linear-gradient(90deg, var(--blue), #22c55e);
}
.page-about .module-card:nth-child(6)::before {
  background: linear-gradient(90deg, #ef4444, var(--cyan));
}
.page-about .module-card:hover {
  transform: translateY(-8px);
  border-color: #7fbef3;
  box-shadow: 0 24px 48px -16px rgba(0, 114, 213, 0.2);
}
.page-about .module-card:hover::before { opacity: 1; }
.page-about .module-icon {
  font-size: 2.4rem;
  margin-bottom: 20px;
}
.page-about .module-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--ink);
}
.page-about .module-card p {
  font-size: .9rem;
  color: var(--ink-soft);
  line-height: 1.75;
  margin: 0;
}

.page-about .modules-bottom-note {
  background: linear-gradient(135deg, #e3f4ff, #d9f4fd);
  border: 1px solid #bddcf7;
  border-radius: 16px;
  padding: 22px 28px;
  font-size: .9rem;
  color: var(--ink-soft);
  line-height: 1.75;
  text-align: center;
}
.page-about .modules-bottom-note strong {
  color: var(--ink);
  font-weight: 600;
}

/* 方法论 */
.page-about .methodology-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.page-about .methodology-text .label {
  display: inline-block;
  font-size: .78rem;
  letter-spacing: .18em;
  color: var(--blue);
  font-weight: 500;
  margin-bottom: 12px;
}
.page-about .methodology-text h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -.02em;
  margin-bottom: 24px;
  color: var(--ink);
}
.page-about .methodology-text p {
  font-size: .95rem;
  color: var(--ink-soft);
  line-height: 1.9;
  margin-bottom: 16px;
}
.page-about .methodology-text p:last-child { margin-bottom: 0; }

.page-about .methodology-visual {
  position: relative;
  max-width: 480px;
  margin: 0 auto;
}
.page-about .method-compare {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 16px;
  align-items: stretch;
  margin-bottom: 20px;
}
.page-about .method-col {
  background: #fff;
  border-radius: 18px;
  padding: 28px 22px;
  border: 1px solid var(--surface-line);
  box-shadow: 0 8px 24px -12px rgba(0, 34, 70, 0.1);
  display: flex;
  flex-direction: column;
}
.page-about .seo-col {
  border-top: 4px solid var(--blue);
}
.page-about .geo-col {
  border-top: 4px solid var(--cyan);
}
.page-about .method-col-label {
  font-size: .78rem;
  font-weight: 600;
  text-align: center;
  margin-bottom: 10px;
  letter-spacing: .05em;
}
.page-about .seo-col .method-col-label { color: var(--blue); }
.page-about .geo-col .method-col-label { color: var(--cyan); }
.page-about .method-col-big {
  font-size: 1.6rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: 18px;
  line-height: 1;
}
.page-about .seo-col .method-col-big {
  background: linear-gradient(135deg, var(--blue), #3b82f6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.page-about .geo-col .method-col-big {
  background: linear-gradient(135deg, var(--cyan), #22d3ee);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.page-about .method-stat-row {
  display: flex;
  justify-content: center;
  margin-bottom: 18px;
  padding-bottom: 18px;
  border-bottom: 1px dashed var(--surface-line);
}
.page-about .method-stat { text-align: center; }
.page-about .method-stat .num {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--ink);
  line-height: 1;
  margin-bottom: 4px;
}
.page-about .method-stat .lbl {
  font-size: .72rem;
  color: var(--ink-faint);
}
.page-about .method-points {
  list-style: none;
  padding: 0;
  margin: 0;
  flex: 1;
}
.page-about .method-points li {
  font-size: .78rem;
  color: var(--ink-soft);
  line-height: 1.6;
  padding-left: 18px;
  position: relative;
  margin-bottom: 8px;
}
.page-about .method-points li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 0;
  font-weight: 700;
  font-size: .7rem;
}
.page-about .seo-col .method-points li::before { color: var(--blue); }
.page-about .geo-col .method-points li::before { color: var(--cyan); }
.page-about .method-points li:last-child { margin-bottom: 0; }

.page-about .method-vs {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.page-about .vs-circle {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 700;
  box-shadow: 0 6px 16px -4px rgba(0, 119, 236, 0.4);
}
.page-about .vs-text {
  font-size: .72rem;
  font-weight: 700;
  color: var(--ink-soft);
  letter-spacing: .1em;
}

.page-about .method-bottom {
  background: linear-gradient(135deg, #e3f4ff, #d9f4fd);
  border: 1px solid #bddcf7;
  border-radius: 14px;
  padding: 18px 24px;
  text-align: center;
}
.page-about .method-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
}
.page-about .method-bottom-label {
  font-size: .88rem;
  font-weight: 600;
  color: var(--ink);
}
.page-about .method-bottom-arrow {
  font-size: 1.1rem;
  color: var(--cyan);
  font-weight: 700;
}
.page-about .method-bottom-value {
  font-size: .88rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* 服务理念 */
.page-about .philosophy-card {
  background: linear-gradient(135deg, #0e2a45, #091a36);
  border-radius: 32px;
  padding: 64px 56px;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.page-about .philosophy-card::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -15%;
  width: 60%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 129, 241, 0.3), transparent 70%);
  pointer-events: none;
}
.page-about .philosophy-card::after {
  content: '';
  position: absolute;
  bottom: -20%;
  left: -10%;
  width: 45%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 189, 202, 0.25), transparent 70%);
  pointer-events: none;
}
.page-about .philosophy-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 2;
}
.page-about .philosophy-label {
  font-size: .78rem;
  letter-spacing: .18em;
  color: #58a5e4;
  font-weight: 500;
  margin-bottom: 16px;
}
.page-about .philosophy-text h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -.02em;
  margin-bottom: 24px;
  color: #fff;
}
.page-about .philosophy-text h2 .gradient {
  background: linear-gradient(135deg, #60a5fa, #22d3ee);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.page-about .philosophy-text p {
  font-size: .95rem;
  color: #a3bbd0;
  line-height: 1.9;
  margin-bottom: 16px;
}
.page-about .philosophy-text p:last-child { margin-bottom: 0; }
.page-about .philosophy-text strong {
  color: #fff;
  font-weight: 600;
}

.page-about .philosophy-visual {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.page-about .roles-compare {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 8px;
}
.page-about .role-item {
  text-align: center;
  flex: 1;
}
.page-about .role-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: rgba(255, 255, 255, .1);
  border: 1px solid rgba(255, 255, 255, .15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin: 0 auto 8px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.page-about .role-name {
  font-size: .72rem;
  color: #a3bbd0;
  line-height: 1.3;
}
.page-about .philosophy-divider {
  text-align: center;
  font-size: .78rem;
  color: #5795c8;
  font-weight: 500;
  letter-spacing: .05em;
}
.page-about .vs-box {
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  border-radius: 20px;
  padding: 28px 32px;
  text-align: center;
  box-shadow: 0 20px 40px -12px rgba(0, 119, 236, 0.4);
}
.page-about .vs-box .big {
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 6px;
  line-height: 1.3;
}
.page-about .vs-box .small {
  font-size: .82rem;
  color: #c8ebf7;
}

/* ===== 服务页专用样式 .page-service ===== */
.page-service .hero {
  padding: 140px 0 80px;
  background:
    radial-gradient(ellipse at 20% 0%, rgba(193, 226, 255, 0.5), transparent 50%),
    radial-gradient(ellipse at 80% 30%, rgba(175, 235, 238, 0.4), transparent 50%),
    var(--bg);
  position: relative;
  overflow: hidden;
}
.page-service .hero h1 {
  font-size: clamp(2rem, 5.5vw, 3.4rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -.02em;
  margin-bottom: 22px;
}
.page-service .hero-desc {
  font-size: 1.05rem;
}
.page-service .hero-card {
  padding: 28px 30px;
}
.page-service .hero-card-q {
  font-size: .85rem;
  color: #86909b;
  margin-bottom: 16px;
}
.page-service .hero-card-q b {
  color: #c4cfdb;
  font-weight: 600;
}
.page-service .hero-card-a {
  font-size: .92rem;
  color: #b4bfca;
  line-height: 1.7;
  margin-bottom: 20px;
}
.page-service .hero-card-a mark {
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 600;
  padding: 0;
}
.page-service .hero-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.page-service .hero-card-tags span {
  font-size: .72rem;
  padding: 5px 12px;
  border-radius: 999px;
  background: rgba(25, 47, 70, 0.6);
  border: 1px solid rgba(46, 74, 103, 0.5);
  color: #9bb0c7;
}

/* 服务页 - WHY GEO 模块 */
.page-service .why-geo-section {
  padding: 60px 0 80px;
}
.page-service .why-geo-section .section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 56px;
}
.page-service .why-geo-section .section-label {
  display: inline-block;
  font-size: .78rem;
  letter-spacing: .18em;
  color: var(--blue);
  font-weight: 500;
  padding: 8px 18px;
  border: 1px solid #aed3f3;
  border-radius: 999px;
  background: #fff;
  margin-bottom: 16px;
}
.page-service .why-geo-section .section-title {
  font-size: clamp(1.8rem, 3.6vw, 2.6rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -.02em;
  color: var(--ink);
  margin-bottom: 16px;
}
.page-service .why-geo-section .section-desc {
  font-size: 1rem;
  color: var(--ink-soft);
  line-height: 1.8;
}
.page-service .stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.page-service .stat-item {
  text-align: center;
  padding: 32px 20px;
  background: #fff;
  border: 1px solid var(--surface-line);
  border-radius: 20px;
  transition: all .35s var(--ease);
  position: relative;
  overflow: hidden;
}
.page-service .stat-item::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blue), var(--cyan));
  opacity: 0;
  transition: opacity .35s var(--ease);
}
.page-service .stat-item:hover {
  transform: translateY(-6px);
  border-color: #7fbef3;
  box-shadow: 0 20px 40px -16px rgba(0, 114, 213, 0.2);
}
.page-service .stat-item:hover::before { opacity: 1; }
.page-service .stat-item .num {
  font-size: clamp(2rem, 4.5vw, 2.8rem);
  font-weight: 700;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
  margin-bottom: 8px;
  display: block;
}
.page-service .stat-item .lbl {
  font-size: .92rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 6px;
  display: block;
}

/* 服务页 - 通用模块容器 */
.page-service .geo-module {
  background: #fff;
  border-radius: 24px;
  border: 1px solid var(--surface-line);
  padding: 56px 52px;
  margin-bottom: 48px;
  box-shadow: 0 1px 3px rgba(18, 35, 52, 0.04), 0 20px 40px -20px rgba(0, 34, 70, 0.08);
}
.page-service .geo-module:last-child { margin-bottom: 0; }
.page-service .module-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.page-service .module-grid.reverse .module-text { order: 2; }
.page-service .module-grid.reverse .module-visual { order: 1; }

/* 服务页 - 数据统计卡片 */
.page-service .stat-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin: 32px 0 24px;
}
.page-service .stat-card {
  background: linear-gradient(160deg, #f7fcff, #e7f4ff);
  border: 1px solid #c2dbf1;
  border-radius: 16px;
  padding: 22px 16px;
  text-align: center;
  transition: all .35s var(--ease);
  position: relative;
  overflow: hidden;
}
.page-service .stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blue), var(--cyan));
  opacity: 0;
  transition: opacity .35s var(--ease);
}
.page-service .stat-card:hover {
  transform: translateY(-4px);
  border-color: #7fbef3;
  box-shadow: 0 12px 32px -12px rgba(0, 114, 213, 0.25);
}
.page-service .stat-card:hover::before { opacity: 1; }
.page-service .stat-num {
  font-size: clamp(1.6rem, 3vw, 2rem);
  font-weight: 700;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
  margin-bottom: 6px;
}
.page-service .stat-label {
  font-size: .78rem;
  color: var(--ink-faint);
}
.page-service .formula-box {
  background: linear-gradient(90deg, #ebf7ff, #ddf2ff);
  border: 1px dashed #8cbde8;
  border-radius: 14px;
  padding: 18px 22px;
  text-align: center;
  font-size: .95rem;
  font-weight: 500;
  color: var(--ink-soft);
  margin-bottom: 28px;
}
.page-service .formula-box strong {
  color: var(--blue);
  font-weight: 700;
}
.page-service .feature-text {
  font-size: .9rem;
  color: var(--ink-soft);
  line-height: 1.9;
  margin-bottom: 14px;
}
.page-service .feature-text:last-child { margin-bottom: 0; }

/* 服务页 - 网络图可视化 */
.page-service .network-visual {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
  border-radius: 20px;
  background:
    radial-gradient(circle at 50% 50%, #e4f8ff, #f7fcff 65%);
  border: 1px solid #c2dbf1;
  overflow: hidden;
}
.page-service .network-visual::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  inset: 0;
  background-image:
    linear-gradient(rgba(164, 201, 233, 0.35) 1px, transparent 1px),
    linear-gradient(90deg, rgba(164, 201, 233, 0.35) 1px, transparent 1px);
  background-size: 40px 40px;
  -webkit-mask-image: radial-gradient(circle at center, black 50%, transparent 85%);
  mask-image: radial-gradient(circle at center, black 50%, transparent 85%);
}
.page-service .center-node {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 32%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow:
    0 0 60px rgba(12, 132, 250, 0.35),
    0 0 120px rgba(0, 186, 197, 0.2),
    inset 0 2px 20px rgba(255, 255, 255, 0.15);
  z-index: 5;
}
.page-service .center-node .cn-title {
  font-size: clamp(.9rem, 1.8vw, 1.15rem);
  font-weight: 700;
  margin-bottom: 4px;
}
.page-service .center-node .cn-sub {
  font-size: clamp(.65rem, 1.2vw, .78rem);
  opacity: .85;
}
.page-service .center-node::before {
  content: '';
  position: absolute;
  top: -12px;
  right: -12px;
  bottom: -12px;
  left: -12px;
  inset: -12px;
  border-radius: 50%;
  border: 2px solid rgba(15, 146, 247, 0.3);
  animation: pulse 3s ease-in-out infinite;
}
.page-service .center-node::after {
  content: '';
  position: absolute;
  top: -24px;
  right: -24px;
  bottom: -24px;
  left: -24px;
  inset: -24px;
  border-radius: 50%;
  border: 1px solid rgba(15, 146, 247, 0.15);
  animation: pulse 3s ease-in-out infinite .6s;
}
.page-service .out-node {
  position: absolute;
  width: 22%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: #f9fcff;
  border: 2px solid #5eaceb;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: clamp(.7rem, 1.3vw, .85rem);
  font-weight: 600;
  color: var(--ink-soft);
  z-index: 3;
  box-shadow: 0 4px 16px rgba(15, 116, 197, 0.12);
  transition: all .3s ease;
}
.page-service .out-node:hover {
  transform: scale(1.08);
  border-color: var(--blue);
  color: var(--blue);
  box-shadow: 0 6px 24px rgba(0, 114, 213, 0.25);
}
.page-service .out-node.n1 { top: 14%; left: 16%; }
.page-service .out-node.n2 { top: 14%; right: 16%; }
.page-service .out-node.n3 { bottom: 18%; left: 12%; }
.page-service .out-node.n4 { bottom: 18%; right: 12%; }
.page-service .out-dot {
  position: absolute;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  box-shadow: 0 0 16px rgba(12, 132, 250, 0.5);
  z-index: 2;
}
.page-service .out-dot.d1 { top: 6%; left: 10%; }
.page-service .out-dot.d2 { top: 8%; right: 8%; }
.page-service .out-dot.d3 { bottom: 8%; left: 6%; }
.page-service .out-dot.d4 { bottom: 6%; right: 10%; }
.page-service .out-dot.d5 { top: 50%; left: 4%; }
.page-service .out-dot.d6 { top: 45%; right: 5%; }

/* 服务页 - 数据仪表盘 */
.page-service .dashboard-visual {
  position: relative;
  width: 100%;
  aspect-ratio: 1.1;
  border-radius: 20px;
  background:
    linear-gradient(160deg, #f1faff, #e3f5ff);
  border: 1px solid #c2dbf1;
  padding: 36px 32px;
  overflow: hidden;
}
.page-service .dash-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.page-service .dash-title::before {
  content: '';
  width: 4px; height: 20px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--blue), var(--cyan));
}
.page-service .rings-row {
  display: flex;
  justify-content: space-around;
  align-items: flex-end;
  margin-bottom: 28px;
}
.page-service .ring-item { text-align: center; }
.page-service .ring-chart {
  width: 100px; height: 100px;
  border-radius: 50%;
  position: relative;
  margin: 0 auto 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.page-service .ring-chart.r70 {
  background: conic-gradient(
    var(--blue) 0deg 252deg,
    var(--surface-line) 252deg 360deg
  );
}
.page-service .ring-chart.r40 {
  background: conic-gradient(
    var(--cyan) 0deg 144deg,
    var(--surface-line) 144deg 360deg
  );
}
.page-service .ring-chart.r58 {
  background: conic-gradient(
    #0089ed 0deg 208.8deg,
    var(--surface-line) 208.8deg 360deg
  );
}
.page-service .ring-chart::before {
  content: '';
  position: absolute;
  top: 16px;
  right: 16px;
  bottom: 16px;
  left: 16px;
  inset: 16px;
  border-radius: 50%;
  background: #f1faff;
}
.page-service .ring-val {
  position: relative;
  z-index: 2;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--ink-soft);
}
.page-service .ring-chart.r70 .ring-val { color: var(--blue); }
.page-service .ring-chart.r40 .ring-val { color: var(--cyan); }
.page-service .ring-chart.r58 .ring-val { color: #0089ed; }
.page-service .ring-label {
  font-size: .78rem;
  color: var(--ink-faint);
  font-weight: 500;
}
.page-service .bars-area {
  display: flex;
  align-items: flex-end;
  justify-content: space-around;
  height: 100px;
  padding: 0 10px;
  position: relative;
}
.page-service .bars-area::before {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: #bcd4ea;
}
.page-service .bar-col {
  width: 22px;
  border-radius: 6px 6px 0 0;
  background: linear-gradient(180deg, #43acfb, #0089ed);
  position: relative;
  transition: height .6s ease;
}
.page-service .bar-col::after {
  content: '';
  position: absolute;
  top: -4px; left: 50%;
  transform: translateX(-50%);
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--blue);
  opacity: 0;
  transition: opacity .3s ease;
}
.page-service .bar-col:hover::after { opacity: 1; }

/* 服务页 - 知识图谱 */
.page-service .kg-visual {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
  border-radius: 20px;
  background:
    radial-gradient(ellipse at 30% 40%, #dcf5ff, #f7fcff 70%);
  border: 1px solid #c2dbf1;
  overflow: hidden;
}
.page-service .kg-visual::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  inset: 0;
  background-image:
    radial-gradient(circle, rgba(140, 189, 232, 0.3) 1.5px, transparent 1.5px);
  background-size: 24px 24px;
  -webkit-mask-image: radial-gradient(circle at 30% 50%, black 40%, transparent 75%);
  mask-image: radial-gradient(circle at 30% 50%, black 40%, transparent 75%);
}
.page-service .kg-node {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  padding: 14px 28px;
  border-radius: 999px;
  background: linear-gradient(135deg, #f7fcff, #e2f5ff);
  border: 2px solid #8cbde8;
  font-weight: 600;
  color: var(--ink-soft);
  font-size: .95rem;
  z-index: 3;
  box-shadow: 0 6px 20px rgba(50, 117, 180, 0.1);
  transition: all .35s ease;
  white-space: nowrap;
}
.page-service .kg-node:hover {
  transform: translateX(-50%) scale(1.05);
  border-color: var(--blue);
  color: var(--blue);
  box-shadow: 0 10px 30px rgba(0, 114, 213, 0.2);
}
.page-service .kg-node.level1 {
  top: 10%;
  padding: 10px 22px;
  font-size: .85rem;
  border-color: #5eaceb;
}
.page-service .kg-node.level2 {
  top: 30%;
  padding: 12px 26px;
  font-size: .9rem;
}
.page-service .kg-node.level3 {
  top: 52%;
  padding: 16px 32px;
  font-size: 1rem;
  border-width: 2.5px;
}
.page-service .kg-node.level4 {
  top: 78%;
  padding: 18px 38px;
  font-size: 1.1rem;
  border-width: 3px;
  border-color: #0f92f7;
  background: linear-gradient(135deg, #effaff, #d4f0ff);
}
.page-service .kg-line {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 3px;
  background: linear-gradient(180deg,
    #8cbde8,
    #4c9deb
  );
  border-radius: 2px;
  z-index: 1;
}
.page-service .kg-line.l1 { top: 18%; height: 12%; }
.page-service .kg-line.l2 { top: 40%; height: 12%; }
.page-service .kg-line.l3 { top: 64%; height: 14%; }

.page-service .feature-list {
  margin-top: 28px;
  list-style: none;
}
.page-service .feature-list li {
  padding: 14px 0 14px 36px;
  position: relative;
  font-size: .92rem;
  color: var(--ink-soft);
  border-bottom: 1px dashed var(--surface-line);
}
.page-service .feature-list li:last-child { border-bottom: none; }
.page-service .feature-list li::before {
  content: '';
  position: absolute;
  left: 0; top: 50%;
  transform: translateY(-50%);
  width: 22px; height: 22px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
}
.page-service .feature-list li::after {
  content: '✓';
  position: absolute;
  left: 0; top: 50%;
  transform: translateY(-50%);
  width: 22px; height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: .75rem;
  font-weight: 700;
}

/* ===== 定价页专用样式 .page-pricing ===== */
.page-pricing .hero {
  padding: 140px 0 80px;
  background:
    radial-gradient(ellipse at 20% 0%, rgba(193, 226, 255, 0.5), transparent 50%),
    radial-gradient(ellipse at 80% 30%, rgba(175, 235, 238, 0.4), transparent 50%),
    var(--bg);
  position: relative;
  overflow: hidden;
}
.page-pricing .hero-text {
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}
.page-pricing .hero-text h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -.02em;
  margin-bottom: 16px;
}
.page-pricing .hero-text h1 .gradient {
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.page-pricing .hero-desc {
  font-size: 1.05rem;
  color: var(--ink-soft);
  line-height: 1.8;
  margin-bottom: 40px;
}
.page-pricing .billing-toggle {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  background: #fff;
  border: 1px solid var(--surface-line);
  border-radius: 999px;
  padding: 6px;
  box-shadow: 0 2px 8px rgba(18, 35, 52, 0.04);
}
.page-pricing .billing-btn {
  padding: 10px 24px;
  border-radius: 999px;
  font-size: .88rem;
  font-weight: 500;
  color: var(--ink-soft);
  cursor: pointer;
  transition: all .3s var(--ease);
  background: none;
  border: none;
  display: flex;
  align-items: center;
  gap: 8px;
}
.page-pricing .billing-btn.active {
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  color: #fff;
  box-shadow: 0 4px 12px rgba(0, 119, 236, 0.25);
}
.page-pricing .save-tag {
  padding: 3px 10px;
  background: #c7e9ff;
  color: var(--blue);
  font-size: .72rem;
  font-weight: 600;
  border-radius: 999px;
}
.page-pricing .billing-btn.active .save-tag {
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
}

/* 定价页 - 定价卡片 */
.page-pricing .pricing-section {
  padding: 40px 0 80px;
}
.page-pricing .pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  align-items: stretch;
}
.page-pricing .pricing-card {
  background: #fff;
  border: 1px solid var(--surface-line);
  border-radius: 24px;
  padding: 40px 32px;
  position: relative;
  transition: all .35s var(--ease);
  box-shadow: 0 1px 3px rgba(18, 35, 52, 0.04);
  display: flex;
  flex-direction: column;
}
.page-pricing .pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 40px -16px rgba(0, 114, 213, 0.15);
}
.page-pricing .pricing-card.featured {
  border: 2px solid transparent;
  background:
    linear-gradient(#fff, #fff) padding-box,
    linear-gradient(135deg, var(--blue), var(--cyan)) border-box;
  transform: translateY(-16px);
  box-shadow: 0 30px 60px -20px rgba(0, 119, 236, 0.25);
  z-index: 2;
}
.page-pricing .pricing-card.featured:hover {
  transform: translateY(-20px);
  box-shadow: 0 40px 70px -20px rgba(0, 119, 236, 0.3);
}
.page-pricing .popular-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  padding: 6px 20px;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  color: #fff;
  font-size: .78rem;
  font-weight: 600;
  border-radius: 999px;
  box-shadow: 0 4px 12px rgba(0, 119, 236, 0.3);
  white-space: nowrap;
}
.page-pricing .pricing-card h3 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--ink);
}
.page-pricing .pricing-subtitle {
  font-size: .88rem;
  color: var(--ink-faint);
  margin-bottom: 24px;
}
.page-pricing .price-row {
  padding-bottom: 24px;
  border-bottom: 1px solid var(--surface-line);
  margin-bottom: 24px;
}
.page-pricing .price-amount {
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.2;
  margin-bottom: 4px;
}
.page-pricing .price-amount .currency {
  font-size: 1.3rem;
  font-weight: 600;
  vertical-align: top;
  margin-right: 2px;
}
.page-pricing .price-period {
  font-size: .88rem;
  color: var(--ink-faint);
}
.page-pricing .price-yearly {
  display: none;
}
body.show-yearly .page-pricing .price-monthly { display: none; }
body.show-yearly .page-pricing .price-yearly { display: block; }
.page-pricing .pricing-features {
  list-style: none;
  margin-bottom: 32px;
  flex: 1;
}
.page-pricing .pricing-features li {
  padding: 10px 0;
  font-size: .9rem;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: var(--ink-soft);
}
.page-pricing .pricing-features li .check {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: linear-gradient(135deg, #00af67, #008d75);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: .7rem;
  font-weight: 700;
  margin-top: 2px;
}
.page-pricing .pricing-features li .cross {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--surface-line);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ink-faint);
  font-size: .7rem;
  font-weight: 700;
  margin-top: 2px;
}
.page-pricing .pricing-card .btn {
  justify-content: center;
  width: 100%;
}

/* 定价页 - FAQ */
.page-pricing .faq-section {
  padding: 80px 0;
  background: var(--surface-2);
}
.page-pricing .faq-list {
  max-width: 860px;
  margin: 0 auto;
}
.page-pricing .faq-item {
  background: #fff;
  border: 1px solid var(--surface-line);
  border-radius: 16px;
  margin-bottom: 16px;
  overflow: hidden;
  transition: all .3s var(--ease);
}
.page-pricing .faq-item:hover {
  border-color: #92c4ee;
  box-shadow: 0 8px 24px -12px rgba(0, 114, 213, 0.15);
}
.page-pricing .faq-item.active {
  border-color: #7fbef3;
}
.page-pricing .faq-q {
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  gap: 20px;
}
.page-pricing .faq-q h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.5;
}
.page-pricing .faq-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, #d3efff, #c4f0ff);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blue);
  font-size: 1.1rem;
  font-weight: 500;
  transition: all .3s var(--ease);
}
.page-pricing .faq-item.active .faq-icon {
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  color: #fff;
  transform: rotate(45deg);
}
.page-pricing .faq-a {
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  transition: all .35s var(--ease);
}
.page-pricing .faq-item.active .faq-a {
  padding: 0 24px 24px;
  max-height: 300px;
}
.page-pricing .faq-a p {
  font-size: .92rem;
  color: var(--ink-soft);
  line-height: 1.8;
}

/* ===== 案例页专用样式 .page-cases ===== */
.page-cases .hero {
  padding: 140px 0 70px;
  background:
    radial-gradient(ellipse at 20% 0%, rgba(193, 226, 255, 0.5), transparent 50%),
    radial-gradient(ellipse at 80% 30%, rgba(175, 235, 238, 0.4), transparent 50%),
    var(--bg);
  position: relative;
  overflow: hidden;
}
.page-cases .hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -.02em;
  margin-bottom: 16px;
}
.page-cases .hero h1 .gradient {
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.page-cases .hero-desc {
  font-size: 1.05rem;
  color: var(--ink-soft);
  margin-bottom: 36px;
  max-width: 640px;
  line-height: 1.8;
}
.page-cases .hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.page-cases .hero-stat {
  background: #fff;
  border: 1px solid var(--surface-line);
  border-radius: 16px;
  padding: 24px 20px;
  text-align: center;
  transition: all .35s var(--ease);
  position: relative;
  overflow: hidden;
}
.page-cases .hero-stat::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blue), var(--cyan));
  opacity: 0;
  transition: opacity .35s var(--ease);
}
.page-cases .hero-stat:hover {
  transform: translateY(-4px);
  border-color: #7fbef3;
  box-shadow: 0 12px 32px -12px rgba(0, 114, 213, 0.25);
}
.page-cases .hero-stat:hover::before { opacity: 1; }
.page-cases .hero-stat .num {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
  margin-bottom: 6px;
  display: block;
}
.page-cases .hero-stat .lbl {
  font-size: .82rem;
  color: var(--ink-faint);
}

/* 案例页 - 筛选标签 */
.page-cases .filter-wrap {
  margin-bottom: 40px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.page-cases .filter-wrap::-webkit-scrollbar { display: none; }
.page-cases .filter-tags {
  display: flex;
  gap: 12px;
  padding: 4px 0;
  min-width: max-content;
}
.page-cases .filter-tag {
  padding: 10px 22px;
  background: #fff;
  border: 1px solid var(--surface-line);
  border-radius: 999px;
  font-size: .88rem;
  font-weight: 500;
  color: var(--ink-soft);
  cursor: pointer;
  transition: all .3s var(--ease);
  white-space: nowrap;
}
.page-cases .filter-tag:hover {
  border-color: var(--blue);
  color: var(--blue);
}
.page-cases .filter-tag.active {
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 16px rgba(0, 119, 236, 0.3);
}

/* 案例页 - 案例网格 */
.page-cases .section {
  padding: 70px 0;
}
.page-cases .section-head {
  margin: 0 auto 48px;
}
.page-cases .cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.page-cases .case-card {
  background: #fff;
  border: 1px solid var(--surface-line);
  border-radius: 20px;
  overflow: hidden;
  transition: all .35s var(--ease);
  cursor: pointer;
  display: flex;
  flex-direction: column;
}
.page-cases .case-card:hover {
  transform: translateY(-6px);
  border-color: #7fbef3;
  box-shadow: 0 24px 48px -20px rgba(0, 114, 213, 0.25);
}
.page-cases .case-thumb {
  width: 100%;
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: .05em;
  position: relative;
  overflow: hidden;
}
.page-cases .case-thumb::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  inset: 0;
  background:
    radial-gradient(circle at 30% 20%, rgba(255, 255, 255, 0.15), transparent 50%),
    radial-gradient(circle at 70% 80%, rgba(255, 255, 255, 0.1), transparent 50%);
}
.page-cases .case-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: relative;
  z-index: 1;
}
.page-cases .case-thumb.t1 { background: linear-gradient(135deg, #296cd8, #00a6c1); }
.page-cases .case-thumb.t2 { background: linear-gradient(135deg, #5449d0, #008fd5); }
.page-cases .case-thumb.t3 { background: linear-gradient(135deg, #009ba8, #37b880); }
.page-cases .case-thumb.t4 { background: linear-gradient(135deg, #005eb3, #00919b); }
.page-cases .case-thumb.t5 { background: linear-gradient(135deg, #6d48d1, #1289e7); }
.page-cases .case-thumb.t6 { background: linear-gradient(135deg, #008cb7, #16b09b); }
.page-cases .case-body {
  padding: 24px 22px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.page-cases .case-tag {
  display: inline-block;
  padding: 4px 12px;
  background: linear-gradient(135deg, #d3efff, #c4f0ff);
  border-radius: 999px;
  font-size: .75rem;
  font-weight: 600;
  color: var(--blue);
  margin-bottom: 12px;
}
.page-cases .case-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 10px;
  line-height: 1.4;
}
.page-cases .case-desc {
  font-size: .88rem;
  color: var(--ink-soft);
  line-height: 1.7;
  margin-bottom: 18px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}
.page-cases .case-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--surface-line);
}
.page-cases .case-metrics {
  display: flex;
  gap: 16px;
}
.page-cases .case-metric {
  text-align: left;
}
.page-cases .case-metric .val {
  font-size: 1rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}
.page-cases .case-metric .key {
  font-size: .72rem;
  color: var(--ink-faint);
  margin-top: 2px;
}
.page-cases .case-link {
  font-size: .85rem;
  font-weight: 600;
  color: var(--blue);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: gap .3s var(--ease);
}
.page-cases .case-card:hover .case-link {
  gap: 8px;
}

/* 案例页 - 效果数据 */
.page-cases .results-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.page-cases .result-card {
  background: #fff;
  border: 1px solid var(--surface-line);
  border-radius: 24px;
  padding: 48px 36px;
  text-align: center;
  transition: all .35s var(--ease);
  position: relative;
  overflow: hidden;
}
.page-cases .result-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 5px;
  background: linear-gradient(90deg, var(--blue), var(--cyan));
  opacity: 0;
  transition: opacity .35s var(--ease);
}
.page-cases .result-card:hover {
  transform: translateY(-8px);
  border-color: #7fbef3;
  box-shadow: 0 28px 56px -20px rgba(0, 114, 213, 0.25);
}
.page-cases .result-card:hover::before { opacity: 1; }
.page-cases .result-num {
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  font-weight: 800;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
  margin-bottom: 12px;
  letter-spacing: -.02em;
}
.page-cases .result-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 8px;
}
.page-cases .result-desc {
  font-size: .88rem;
  color: var(--ink-soft);
  line-height: 1.7;
}

/* ===== 文章页 & 搜索页 共用样式 ===== */
.page-articles .page-hero,
.page-search .page-hero {
  padding: 140px 0 60px;
  background:
    radial-gradient(ellipse at 20% 0%, rgba(193, 226, 255, 0.5), transparent 50%),
    radial-gradient(ellipse at 80% 30%, rgba(175, 235, 238, 0.4), transparent 50%),
    var(--bg);
  position: relative;
  overflow: hidden;
}
.page-articles .page-hero h1,
.page-search .page-hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -.02em;
  margin-bottom: 16px;
}
.page-articles .page-hero h1 .gradient,
.page-search .page-hero h1 .gradient {
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.page-articles .page-hero-desc,
.page-search .page-hero-desc {
  font-size: 1.05rem;
  color: var(--ink-soft);
  margin-bottom: 32px;
  max-width: 560px;
  line-height: 1.8;
}
.page-articles .search-box,
.page-search .search-box {
  display: flex;
  max-width: 520px;
  background: #fff;
  border: 1px solid var(--surface-line);
  border-radius: 999px;
  padding: 6px 6px 6px 24px;
  box-shadow: 0 4px 20px rgba(18, 35, 52, 0.06);
  align-items: center;
  transition: all .3s var(--ease);
}
.page-articles .search-box:focus-within,
.page-search .search-box:focus-within {
  border-color: var(--blue);
  box-shadow: 0 6px 28px rgba(0, 119, 236, 0.15);
}
.page-articles .search-box input,
.page-search .search-box input {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  font-size: .95rem;
  color: var(--ink);
  padding: 10px 0;
  font-family: inherit;
}
.page-articles .search-box input::placeholder,
.page-search .search-box input::placeholder { color: var(--ink-faint); }
.page-articles .search-btn,
.page-search .search-btn {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  border: none;
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
  transition: transform .3s var(--ease);
}
.page-articles .search-btn:hover,
.page-search .search-btn:hover { transform: scale(1.05); }

/* 文章页 - 分类筛选 */
.page-articles .category-section {
  padding: 40px 0 20px;
}
.page-articles .category-list {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  list-style: none;
}
.page-articles .category-item {
  padding: 10px 22px;
  background: #fff;
  border: 1px solid var(--surface-line);
  border-radius: 999px;
  font-size: .88rem;
  color: var(--ink-soft);
  cursor: pointer;
  transition: all .3s var(--ease);
  font-weight: 500;
  white-space: nowrap;
}
.page-articles .category-item:hover {
  border-color: var(--blue);
  color: var(--blue);
}
.page-articles .category-item.active {
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 16px rgba(0, 119, 236, 0.25);
}

/* 文章页 & 搜索页 - 文章列表 */
.page-articles .articles-section,
.page-search .articles-section {
  padding: 20px 0 60px;
}
.page-articles .articles-layout,
.page-search .articles-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 36px;
  align-items: start;
}
.page-articles .article-grid,
.page-search .article-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.page-articles .article-card,
.page-search .article-card {
  background: #fff;
  border: 1px solid var(--surface-line);
  border-radius: 20px;
  overflow: hidden;
  transition: all .35s var(--ease);
  cursor: pointer;
  display: flex;
  flex-direction: column;
}
.page-articles .article-card:hover,
.page-search .article-card:hover {
  transform: translateY(-6px);
  border-color: #7fbef3;
  box-shadow: 0 24px 48px -16px rgba(0, 114, 213, 0.2);
}
.page-articles .article-thumb,
.page-search .article-thumb {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  overflow: hidden;
}
.page-articles .article-thumb::before,
.page-search .article-thumb::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  inset: 0;
  background:
    radial-gradient(ellipse at 30% 30%, rgba(255, 255, 255, 0.2), transparent 50%),
    radial-gradient(ellipse at 70% 70%, rgba(255, 255, 255, 0.15), transparent 50%);
}
.page-articles .article-thumb .cat-badge,
.page-search .article-thumb .cat-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  padding: 6px 14px;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: 999px;
  color: #fff;
  font-size: .78rem;
  font-weight: 500;
  z-index: 2;
}
.page-articles .article-thumb-text,
.page-search .article-thumb-text {
  position: absolute;
  bottom: 20px;
  left: 20px;
  right: 20px;
  color: #fff;
  font-size: .95rem;
  font-weight: 600;
  z-index: 2;
  opacity: .9;
}
.page-articles .article-body,
.page-search .article-body {
  padding: 22px 24px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.page-articles .article-meta-top,
.page-search .article-meta-top {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}
.page-articles .article-cat,
.page-search .article-cat {
  font-size: .78rem;
  color: var(--blue);
  font-weight: 600;
  padding: 4px 10px;
  background: linear-gradient(135deg, #d3efff, #c4f0ff);
  border-radius: 6px;
}
.page-articles .article-dot,
.page-search .article-dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--surface-line);
}
.page-articles .article-date-small,
.page-search .article-date-small {
  font-size: .78rem;
  color: var(--ink-faint);
}
.page-articles .article-title,
.page-search .article-title {
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.45;
  color: var(--ink);
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color .3s;
}
.page-articles .article-card:hover .article-title,
.page-search .article-card:hover .article-title { color: var(--blue); }
.page-articles .article-excerpt,
.page-search .article-excerpt {
  font-size: .9rem;
  color: var(--ink-soft);
  line-height: 1.75;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 18px;
  flex: 1;
}
.page-articles .article-footer,
.page-search .article-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--surface-line);
}
.page-articles .article-meta,
.page-search .article-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: .82rem;
  color: var(--ink-faint);
}
.page-articles .article-meta span,
.page-search .article-meta span {
  display: flex;
  align-items: center;
  gap: 5px;
}
.page-articles .read-more,
.page-search .read-more {
  font-size: .85rem;
  font-weight: 600;
  color: var(--blue);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: gap .3s var(--ease);
}
.page-articles .article-card:hover .read-more,
.page-search .article-card:hover .read-more { gap: 8px; }

/* 文章页 & 搜索页 - 侧边栏 */
.page-articles .sidebar,
.page-search .sidebar {
  display: flex;
  flex-direction: column;
  gap: 28px;
  position: -webkit-sticky;
  position: sticky;
  top: 100px;
}
.page-articles .sidebar-card,
.page-search .sidebar-card {
  background: #fff;
  border: 1px solid var(--surface-line);
  border-radius: 20px;
  padding: 26px 24px;
  box-shadow: 0 2px 12px rgba(18, 35, 52, 0.04);
}
.page-articles .sidebar-title,
.page-search .sidebar-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.page-articles .sidebar-title::before,
.page-search .sidebar-title::before {
  content: '';
  width: 4px;
  height: 20px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--blue), var(--cyan));
}

/* 热门文章 */
.page-articles .popular-list,
.page-search .popular-list {
  list-style: none;
  counter-reset: rank;
}
.page-articles .popular-item,
.page-search .popular-item {
  counter-increment: rank;
  display: flex;
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--surface-line);
  cursor: pointer;
  transition: all .3s;
}
.page-articles .popular-item:last-child,
.page-search .popular-item:last-child { border-bottom: none; padding-bottom: 0; }
.page-articles .popular-item:first-child,
.page-search .popular-item:first-child { padding-top: 0; }
.page-articles .popular-item:hover .popular-title,
.page-search .popular-item:hover .popular-title { color: var(--blue); }
.page-articles .popular-rank,
.page-search .popular-rank {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: linear-gradient(135deg, #d3efff, #c4f0ff);
  color: var(--blue);
  font-size: .82rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.page-articles .popular-item:nth-child(1) .popular-rank,
.page-articles .popular-item:nth-child(2) .popular-rank,
.page-articles .popular-item:nth-child(3) .popular-rank,
.page-search .popular-item:nth-child(1) .popular-rank,
.page-search .popular-item:nth-child(2) .popular-rank,
.page-search .popular-item:nth-child(3) .popular-rank {
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  color: #fff;
}
.page-articles .popular-content,
.page-search .popular-content { flex: 1; min-width: 0; }
.page-articles .popular-title,
.page-search .popular-title {
  font-size: .9rem;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.5;
  margin-bottom: 4px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color .3s;
}
.page-articles .popular-views,
.page-search .popular-views {
  font-size: .78rem;
  color: var(--ink-faint);
}

/* 标签云 */
.page-articles .tag-cloud,
.page-search .tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.page-articles .tag-item,
.page-search .tag-item {
  padding: 7px 14px;
  background: var(--surface-2);
  border: 1px solid var(--surface-line);
  border-radius: 999px;
  font-size: .82rem;
  color: var(--ink-soft);
  cursor: pointer;
  transition: all .3s var(--ease);
  white-space: nowrap;
}
.page-articles .tag-item:hover,
.page-search .tag-item:hover {
  border-color: var(--blue);
  color: var(--blue);
  background: #fff;
}
.page-articles .tag-item.size-lg,
.page-search .tag-item.size-lg { font-size: .95rem; font-weight: 600; padding: 8px 18px; }
.page-articles .tag-item.size-md,
.page-search .tag-item.size-md { font-size: .88rem; }
.page-articles .tag-item.size-sm,
.page-search .tag-item.size-sm { font-size: .78rem; }

/* 订阅卡片 */
.page-articles .subscribe-card,
.page-search .subscribe-card {
  background: linear-gradient(135deg, #def5ff, #d2f5ff);
  border: 1px solid #aed3f3;
}
.page-articles .subscribe-card .sidebar-title,
.page-search .subscribe-card .sidebar-title { margin-bottom: 10px; }
.page-articles .subscribe-desc,
.page-search .subscribe-desc {
  font-size: .88rem;
  color: var(--ink-soft);
  margin-bottom: 18px;
  line-height: 1.7;
}
.page-articles .subscribe-form,
.page-search .subscribe-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.page-articles .subscribe-input,
.page-search .subscribe-input {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--surface-line);
  border-radius: 12px;
  font-size: .9rem;
  background: #fff;
  outline: none;
  transition: border-color .3s;
  font-family: inherit;
}
.page-articles .subscribe-input:focus,
.page-search .subscribe-input:focus { border-color: var(--blue); }
.page-articles .subscribe-btn,
.page-search .subscribe-btn {
  width: 100%;
  padding: 12px 20px;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  color: #fff;
  border: none;
  border-radius: 12px;
  font-size: .9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all .3s var(--ease);
  box-shadow: 0 4px 14px rgba(0, 119, 236, 0.25);
}
.page-articles .subscribe-btn:hover,
.page-search .subscribe-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 119, 236, 0.35);
}

/* 文章页 & 搜索页 - 分页 */
.page-articles .pagination-section,
.page-search .pagination-section {
  padding: 20px 0 60px;
}
.page-articles .pagination,
.page-search .pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  list-style: none;
  flex-wrap: wrap;
}
.page-articles .page-item,
.page-search .page-item {
  min-width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 14px;
  background: #fff;
  border: 1px solid var(--surface-line);
  border-radius: 12px;
  font-size: .9rem;
  font-weight: 500;
  color: var(--ink-soft);
  cursor: pointer;
  transition: all .3s var(--ease);
}
.page-articles .page-item:hover,
.page-search .page-item:hover {
  border-color: var(--blue);
  color: var(--blue);
}
.page-articles .page-item.active,
.page-search .page-item.active {
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 14px rgba(0, 119, 236, 0.3);
}
.page-articles .page-item.ellipsis,
.page-search .page-item.ellipsis {
  border: none;
  background: transparent;
  cursor: default;
  padding: 0 4px;
}
.page-articles .page-item.ellipsis:hover,
.page-search .page-item.ellipsis:hover {
  color: var(--ink-soft);
}
.page-articles .page-item.nav-btn,
.page-search .page-item.nav-btn {
  padding: 0 18px;
  gap: 6px;
  display: flex;
  align-items: center;
}

/* ========================================
   响应式断点
   ======================================== */

/* >= 2K 屏幕 */
@media (min-width: 2000px) {
  .container { max-width: 1500px; padding: 0 40px; }
  .nav-inner { max-width: 1500px; padding: 14px 40px; }
  .nav-logo img { height: 48px; }
  .site-footer-inner { max-width: 1500px; padding: 0 40px; }
  .sf-bottom { max-width: 1500px; padding: 1.4rem 40px 0; }

  .page-home .hero h1 { font-size: 4.2rem; }
  .page-about .hero-grid { gap: 80px; }
  .page-about .hero h1 { font-size: 3.8rem; }
  .page-about .hero-visual { max-width: 540px; }
  .page-about .overview-card { padding: 64px 60px; gap: 72px; }
  .page-about .modules-grid { gap: 28px; }
  .page-about .philosophy-card { padding: 72px 64px; }
  .page-about .philosophy-grid { gap: 72px; }
  .page-articles .articles-layout,
  .page-search .articles-layout { gap: 44px; }
  .page-articles .article-grid,
  .page-search .article-grid { gap: 32px; }
}

/* <= 1200px */
@media (max-width: 1200px) {
  .page-articles .articles-layout,
  .page-search .articles-layout {
    grid-template-columns: 1fr 300px;
    gap: 28px;
  }
}

/* <= 1100px */
@media (max-width: 1100px) {
  .page-home .pain-grid { grid-template-columns: repeat(2, 1fr); }
  .page-home .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .page-home .case-grid { grid-template-columns: repeat(2, 1fr); }

  .page-about .overview-card { grid-template-columns: 1fr; gap: 40px; }
  .page-about .modules-grid { grid-template-columns: repeat(2, 1fr); }
  .page-about .methodology-wrap { grid-template-columns: 1fr; gap: 48px; }
  .page-about .philosophy-grid { grid-template-columns: 1fr; gap: 48px; }

  .page-pricing .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-pricing .pricing-card.featured {
    transform: translateY(0);
    grid-column: 1 / -1;
    max-width: 520px;
    margin: 0 auto;
    width: 100%;
    order: -1;
  }

  .page-cases .cases-grid { grid-template-columns: repeat(2, 1fr); }
  .page-cases .results-grid { grid-template-columns: repeat(2, 1fr); }
  .page-cases .hero-stats { grid-template-columns: repeat(2, 1fr); }

  .page-service .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .page-service .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .page-service .hero-visual { max-width: 460px; margin: 0 auto; }

  .page-articles .article-grid,
  .page-search .article-grid { grid-template-columns: repeat(2, 1fr); }
  .page-articles .articles-layout,
  .page-search .articles-layout {
    grid-template-columns: 1fr 280px;
    gap: 24px;
  }
}

/* <= 960px (服务页专用) */
@media (max-width: 960px) {
  .page-service .module-grid { grid-template-columns: 1fr; gap: 40px; }
  .page-service .module-grid.reverse .module-text { order: 1; }
  .page-service .module-grid.reverse .module-visual { order: 2; }
  .page-service .geo-module { padding: 40px 28px; }
  .page-service .stat-cards { grid-template-columns: repeat(3, 1fr); }
}

/* <= 900px */
@media (max-width: 900px) {
  .nav-links { display: none; }

  .page-home .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .page-home .hero-visual { max-width: 420px; margin: 0 auto; }
  .page-home .hero-float-card.top-right { right: -10px; }
  .page-home .hero-float-card.bottom-left { left: -10px; }
  .page-home .how-grid { grid-template-columns: 1fr; gap: 40px; }
  .page-home .how-section { padding: 40px 28px; }
  .page-home .dual-grid { grid-template-columns: 1fr; }
  .page-home .dual-divider {
    flex-direction: row;
    padding: 8px 0;
  }
  .page-home .dual-vs-label { writing-mode: horizontal-tb; }

  .page-about .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .page-about .hero-visual { max-width: 360px; }
  .page-about .overview-card { padding: 40px 28px; }
  .page-about .timeline::before { left: 20px; }
  .page-about .timeline-item { grid-template-columns: auto 1fr; gap: 24px; }
  .page-about .timeline-empty { display: none; }
  .page-about .timeline-left,
  .page-about .timeline-right {
    text-align: left;
    border-right: none;
    border-left: 3px solid var(--blue);
  }
  .page-about .timeline-dot { margin-left: 4px; }
  .page-about .philosophy-card { padding: 48px 36px; }

  .page-pricing .pricing-grid {
    grid-template-columns: 1fr;
  }
  .page-pricing .pricing-card.featured {
    transform: translateY(0);
    max-width: 100%;
    order: 0;
  }

  .page-articles .articles-layout,
  .page-search .articles-layout {
    grid-template-columns: 1fr;
  }
  .page-articles .sidebar,
  .page-search .sidebar {
    position: static;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
  .page-articles .sidebar-card.subscribe-card,
  .page-search .sidebar-card.subscribe-card {
    grid-column: 1 / -1;
  }

  .site-footer-inner { grid-template-columns: 1fr 1fr; }
  .sf-qr { grid-column: 1 / -1; order: -1; margin-bottom: 1rem; }
}

/* <= 640px (案例页、文章页专用) */
@media (max-width: 640px) {
  .page-cases .cases-grid { grid-template-columns: 1fr; }
  .page-cases .results-grid { grid-template-columns: 1fr; gap: 18px; }
  .page-cases .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .page-cases .hero-stat { padding: 18px 14px; }
  .page-cases .result-card { padding: 36px 24px; }
  .page-cases .section { padding: 50px 0; }
  .page-cases .hero { padding: 100px 0 50px; }

  .page-articles .article-grid,
  .page-search .article-grid { grid-template-columns: 1fr; }
  .page-articles .sidebar,
  .page-search .sidebar { grid-template-columns: 1fr; }
  .page-articles .category-list { gap: 8px; }
  .page-articles .category-item { padding: 8px 16px; font-size: .82rem; }
  .page-articles .page-item,
  .page-search .page-item {
    min-width: 38px;
    height: 38px;
    padding: 0 10px;
    font-size: .85rem;
  }
  .page-articles .page-item.nav-btn,
  .page-search .page-item.nav-btn { padding: 0 14px; }
  .page-articles .search-box,
  .page-search .search-box { padding: 4px 4px 4px 18px; }
  .page-articles .search-btn,
  .page-search .search-btn { width: 38px; height: 38px; }
  .page-articles .page-hero,
  .page-search .page-hero { padding: 100px 0 50px; }
}

/* <= 560px */
@media (max-width: 560px) {
  .container { padding: 0 16px; }

  .page-home .hero { padding: 90px 0 60px; min-height: auto; }
  .page-home .hero-stats { gap: 20px; flex-wrap: wrap; }
  .page-home .hero-stat-item .num { font-size: 1.4rem; }
  .page-home .hero-float-card { display: none; }
  .page-home .section { padding: 60px 0; }
  .page-home .pain-grid { grid-template-columns: 1fr; }
  .page-home .stats-grid { grid-template-columns: 1fr; }
  .page-home .case-grid { grid-template-columns: 1fr; }
  .page-home .how-section { padding: 28px 20px; border-radius: 20px; }
  .page-home .hero-actions { flex-direction: column; }
  .page-home .hero-actions .btn { justify-content: center; }
  .page-home .hero-ai-card { padding: 16px 18px; }

  .page-about .hero { padding: 100px 0 60px; }
  .page-about .section { padding: 60px 0; }
  .page-about .hero-stats { gap: 20px; flex-wrap: wrap; }
  .page-about .hero-stat { flex: 1; min-width: 90px; }
  .page-about .overview-stats { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .page-about .overview-stat { padding: 22px 14px; }
  .page-about .overview-card { padding: 28px 20px; border-radius: 20px; gap: 28px; }
  .page-about .modules-grid { grid-template-columns: 1fr; gap: 16px; }
  .page-about .module-card { padding: 28px 22px; }
  .page-about .timeline-item { gap: 16px; }
  .page-about .timeline-content { padding: 22px; border-radius: 16px; }
  .page-about .method-compare { gap: 10px; }
  .page-about .method-col { padding: 22px 14px; }
  .page-about .method-col-big { font-size: 1.3rem; }
  .page-about .method-stat .num { font-size: 1.2rem; }
  .page-about .vs-circle { width: 36px; height: 36px; font-size: 1rem; }
  .page-about .vs-text { font-size: .65rem; }
  .page-about .method-bottom-inner { flex-direction: column; gap: 6px; }
  .page-about .philosophy-card { padding: 40px 24px; border-radius: 24px; }
  .page-about .philosophy-grid { gap: 36px; }
  .page-about .roles-compare { flex-wrap: wrap; gap: 12px; }
  .page-about .role-item { flex: 0 0 calc(20% - 10px); min-width: 60px; }
  .page-about .role-icon { width: 48px; height: 48px; font-size: 1.3rem; border-radius: 14px; }
  .page-about .vs-box { padding: 22px 24px; }
  .page-about .vs-box .big { font-size: 1rem; }

  .page-service .geo-module { padding: 28px 20px; }
  .page-service .stat-cards { grid-template-columns: 1fr; gap: 10px; }
  .page-service .stats-grid { grid-template-columns: 1fr; gap: 16px; }
  .page-service .stat-item { padding: 24px 16px; }
  .page-service .stat-item .num { font-size: 2rem; }
  .page-service .why-geo-section { padding: 40px 0 60px; }
  .page-service .why-geo-section .section-head { margin-bottom: 36px; }
  .page-service .rings-row { flex-wrap: wrap; gap: 16px; }
  .page-service .ring-chart { width: 80px; height: 80px; }
  .page-service .hero { padding: 110px 0 50px; }
  .page-service .hero-card { padding: 20px 22px; }
  .page-service .hero-actions .btn { flex: 1; justify-content: center; }

  .page-pricing .pricing-section { padding: 20px 0 60px; }
  .page-pricing .faq-section { padding: 60px 0; }
  .page-pricing .cta-section { padding: 60px 0; }
  .page-pricing .pricing-card { padding: 32px 24px; border-radius: 20px; }
  .page-pricing .price-amount { font-size: 2rem; }
  .page-pricing .faq-q { padding: 16px 20px; }
  .page-pricing .faq-item.active .faq-a { padding: 0 20px 20px; }
  .page-pricing .billing-btn { padding: 8px 16px; font-size: .82rem; }
  .page-pricing .hero { padding: 100px 0 60px; }

  .cta-card { padding: 40px 24px; }

  .site-footer-inner { grid-template-columns: 1fr; padding: 0 16px; }
  .sf-links { grid-template-columns: 1fr; }
  .sf-bottom { flex-direction: column; padding: 1.4rem 16px 0; }
}

/* <= 860px (导航专用) */
@media (max-width: 860px) {
  .nav-links { display: none; }
}

/* ========================================
   文章详情页 .page-article
   ======================================== */

.page-article .article-hero {
  padding: 140px 0 60px;
  background:
    radial-gradient(ellipse at 20% 0%, rgba(193, 226, 255, 0.5), transparent 50%),
    radial-gradient(ellipse at 80% 30%, rgba(175, 235, 238, 0.4), transparent 50%),
    var(--bg);
  position: relative;
  overflow: hidden;
}

.page-article .article-hero-content {
  max-width: 860px;
}

.page-article .article-cat-badge {
  display: inline-block;
  padding: 6px 16px;
  background: linear-gradient(135deg, #d3efff, #c4f0ff);
  border-radius: 999px;
  font-size: .82rem;
  color: var(--blue);
  font-weight: 600;
  margin-bottom: 20px;
}

.page-article .article-hero-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -.02em;
  color: var(--ink);
  margin-bottom: 20px;
}

.page-article .article-meta-row {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  font-size: .88rem;
  color: var(--ink-soft);
}

.page-article .article-meta-row .meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.page-article .article-meta-row .meta-icon {
  font-size: .9rem;
}

.page-article .article-meta-row .meta-dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--surface-line);
}

/* 文章正文区 */
.page-article .article-body-wrap {
  padding: 60px 0;
}

.page-article .article-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 36px;
  align-items: start;
}

.page-article .article-main {
  min-width: 0;
}

.page-article .article-content {
  background: #fff;
  border: 1px solid var(--surface-line);
  border-radius: 24px;
  padding: 40px 48px;
  box-shadow: 0 2px 12px rgba(18, 35, 52, 0.04);
}

.page-article .article-featured-image {
  margin: -40px -48px 36px;
  width: calc(100% + 96px);
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-radius: 24px 24px 0 0;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
}

.page-article .article-featured-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-article .article-text {
  font-size: 1rem;
  line-height: 1.9;
  color: var(--ink-soft);
}

.page-article .article-text > * {
  margin-bottom: 1.4em;
}

.page-article .article-text > *:last-child {
  margin-bottom: 0;
}

.page-article .article-text h1,
.page-article .article-text h2,
.page-article .article-text h3,
.page-article .article-text h4,
.page-article .article-text h5,
.page-article .article-text h6 {
  color: var(--ink);
  font-weight: 700;
  line-height: 1.4;
  margin-top: 1.8em;
  margin-bottom: .8em;
  letter-spacing: -.01em;
}

.page-article .article-text h2 {
  font-size: 1.5rem;
}

.page-article .article-text h3 {
  font-size: 1.25rem;
}

.page-article .article-text h4 {
  font-size: 1.1rem;
}

.page-article .article-text p {
  color: var(--ink-soft);
  line-height: 1.9;
}

.page-article .article-text a {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color .3s;
}

.page-article .article-text a:hover {
  color: var(--blue-deep);
}

.page-article .article-text ul,
.page-article .article-text ol {
  padding-left: 1.5em;
}

.page-article .article-text li {
  margin-bottom: .6em;
}

.page-article .article-text blockquote {
  margin: 2em 0;
  padding: 24px 28px;
  background: linear-gradient(135deg, #e3f4ff, #d9f4fd);
  border-left: 4px solid var(--blue);
  border-radius: 16px;
  font-size: 1.05rem;
  color: var(--ink-soft);
  line-height: 1.8;
  font-style: italic;
}

.page-article .article-text img {
  border-radius: 16px;
  box-shadow: 0 8px 24px rgba(18, 35, 52, 0.1);
}

.page-article .article-text code {
  padding: 2px 8px;
  background: var(--surface-2);
  border: 1px solid var(--surface-line);
  border-radius: 6px;
  font-size: .9em;
  color: var(--blue-deep);
}

.page-article .article-text pre {
  padding: 24px;
  background: var(--surface-2);
  border: 1px solid var(--surface-line);
  border-radius: 16px;
  overflow-x: auto;
  margin: 1.5em 0;
}

.page-article .article-text pre code {
  padding: 0;
  background: none;
  border: none;
  font-size: .88rem;
  color: var(--ink-soft);
}

.page-article .article-text table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5em 0;
  font-size: .95rem;
}

.page-article .article-text th,
.page-article .article-text td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--surface-line);
}

.page-article .article-text th {
  background: var(--surface-2);
  font-weight: 600;
  color: var(--ink);
}

/* 护眼模式切换按钮 */
.eye-care-toggle {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 14px;
  border-radius: 999px;
  border: 1px solid var(--surface-line);
  background: #fff;
  color: var(--ink-soft);
  font-size: .8rem;
  font-weight: 500;
  cursor: pointer;
  transition: all .3s var(--ease);
}
.eye-care-toggle:hover {
  border-color: var(--green, #4caf50);
  color: var(--green, #4caf50);
}
.eye-care-toggle.active {
  background: linear-gradient(135deg, #e8f5e9, #c8e6c9);
  border-color: #a5d6a7;
  color: #2e7d32;
}
.eye-care-toggle .eye-care-icon {
  font-size: .9rem;
}

/* 护眼模式 —— 文章页整体变色 */
.page-article.eye-care {
  --ec-bg: #f5f2e8;
  --ec-text: #4a4a4a;
  --ec-text-soft: #5a5a55;
  --ec-heading: #3a3a35;
  --ec-border: #e0ddd0;
  --ec-surface: #faf7ec;
}

.page-article.eye-care .article-hero {
  background:
    radial-gradient(ellipse at 20% 0%, rgba(200, 230, 201, 0.4), transparent 50%),
    radial-gradient(ellipse at 80% 30%, rgba(220, 231, 197, 0.35), transparent 50%),
    var(--ec-bg);
}
.page-article.eye-care .article-hero-title,
.page-article.eye-care .article-hero h1 {
  color: var(--ec-heading);
}
.page-article.eye-care .article-meta-row,
.page-article.eye-care .article-meta-row .meta-item {
  color: var(--ec-text-soft);
}
.page-article.eye-care .article-meta-row .meta-dot {
  background: var(--ec-border);
}
.page-article.eye-care .article-body-wrap {
  background: var(--ec-bg);
}
.page-article.eye-care .article-content {
  background: var(--ec-surface);
  border-color: var(--ec-border);
  box-shadow: 0 2px 12px rgba(120, 120, 100, 0.04);
}
.page-article.eye-care .article-text {
  color: var(--ec-text);
}
.page-article.eye-care .article-text h1,
.page-article.eye-care .article-text h2,
.page-article.eye-care .article-text h3,
.page-article.eye-care .article-text h4,
.page-article.eye-care .article-text h5,
.page-article.eye-care .article-text h6 {
  color: var(--ec-heading);
}
.page-article.eye-care .article-text p {
  color: var(--ec-text);
}
.page-article.eye-care .article-text a {
  color: #558b2f;
}
.page-article.eye-care .article-text blockquote {
  background: linear-gradient(135deg, #e8efe0, #dde7d4);
  border-left-color: #7cb342;
  color: var(--ec-text);
}
.page-article.eye-care .article-text code {
  background: #efe9d9;
  border-color: var(--ec-border);
  color: #5d4037;
}
.page-article.eye-care .article-text pre {
  background: #efe9d9;
  border-color: var(--ec-border);
}
.page-article.eye-care .article-text pre code {
  color: var(--ec-text);
  background: transparent;
  border: none;
}
.page-article.eye-care .article-text th,
.page-article.eye-care .article-text td {
  border-color: var(--ec-border);
}
.page-article.eye-care .article-text th {
  background: #efe9d9;
  color: var(--ec-heading);
}
.page-article.eye-care .breadcrumb,
.page-article.eye-care .breadcrumb a {
  color: var(--ec-text-soft);
}
.page-article.eye-care .breadcrumb .current {
  color: var(--ec-heading);
}
.page-article.eye-care .article-cat-badge {
  background: linear-gradient(135deg, #e8f5e9, #c8e6c9);
  color: #2e7d32;
}
.page-article.eye-care .article-tags {
  border-top-color: var(--ec-border);
}
.page-article.eye-care .tags-label {
  color: var(--ec-heading);
}
.page-article.eye-care .tags-list .tag-item {
  background: #efe9d9;
  border-color: var(--ec-border);
  color: var(--ec-text-soft);
}
.page-article.eye-care .tags-list .tag-item:hover {
  border-color: #7cb342;
  color: #558b2f;
  background: var(--ec-surface);
}

/* 文章标签 */
.page-article .article-tags {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-top: 36px;
  padding-top: 28px;
  border-top: 1px solid var(--surface-line);
  flex-wrap: wrap;
}

.page-article .tags-label {
  font-size: .9rem;
  font-weight: 600;
  color: var(--ink);
  flex-shrink: 0;
  padding-top: 6px;
}

.page-article .tags-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-article .tags-list .tag-item {
  padding: 6px 14px;
  background: var(--surface-2);
  border: 1px solid var(--surface-line);
  border-radius: 999px;
  font-size: .82rem;
  color: var(--ink-soft);
  text-decoration: none;
  transition: all .3s var(--ease);
  white-space: nowrap;
}

.page-article .tags-list .tag-item:hover {
  border-color: var(--blue);
  color: var(--blue);
  background: #fff;
}

/* 侧边栏 */
.page-article .sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
  position: -webkit-sticky;
  position: sticky;
  top: 100px;
}

.page-article .sidebar-card {
  background: #fff;
  border: 1px solid var(--surface-line);
  border-radius: 20px;
  padding: 26px 24px;
  box-shadow: 0 2px 12px rgba(18, 35, 52, 0.04);
}

.page-article .sidebar-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-article .sidebar-title::before {
  content: '';
  width: 4px;
  height: 20px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--blue), var(--cyan));
}

/* 作者卡片 */
.page-article .author-card {
  text-align: center;
}

.page-article .author-avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  margin: 0 auto 16px;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.8rem;
  font-weight: 700;
  overflow: hidden;
  box-shadow: 0 6px 20px rgba(0, 119, 236, 0.3);
}

.page-article .author-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-article .author-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 6px;
}

.page-article .author-desc {
  font-size: .85rem;
  color: var(--ink-faint);
  line-height: 1.7;
}

/* 热门文章列表 */
.page-article .popular-list {
  list-style: none;
  counter-reset: rank;
}

.page-article .popular-item {
  counter-increment: rank;
  display: flex;
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--surface-line);
  cursor: pointer;
  transition: all .3s;
}

.page-article .popular-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.page-article .popular-item:first-child {
  padding-top: 0;
}

.page-article .popular-item:hover .popular-title {
  color: var(--blue);
}

.page-article .popular-rank {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: linear-gradient(135deg, #d3efff, #c4f0ff);
  color: var(--blue);
  font-size: .82rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-article .popular-item:nth-child(1) .popular-rank,
.page-article .popular-item:nth-child(2) .popular-rank,
.page-article .popular-item:nth-child(3) .popular-rank {
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  color: #fff;
}

.page-article .popular-content {
  flex: 1;
  min-width: 0;
}

.page-article .popular-title {
  font-size: .9rem;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.5;
  margin-bottom: 4px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color .3s;
  text-decoration: none;
}

.page-article .popular-views {
  font-size: .78rem;
  color: var(--ink-faint);
}

/* 相关文章列表 */
.page-article .related-list {
  list-style: none;
}

.page-article .related-item {
  padding: 14px 0;
  border-bottom: 1px dashed var(--surface-line);
}

.page-article .related-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.page-article .related-item:first-child {
  padding-top: 0;
}

.page-article .related-link {
  display: flex;
  gap: 14px;
  text-decoration: none;
  transition: all .3s;
}

.page-article .related-link:hover .related-title {
  color: var(--blue);
}

.page-article .related-thumb {
  flex-shrink: 0;
  width: 80px;
  height: 60px;
  border-radius: 10px;
  overflow: hidden;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
}

.page-article .related-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-article .related-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.page-article .related-title {
  font-size: .88rem;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color .3s;
}

.page-article .related-date {
  font-size: .75rem;
  color: var(--ink-faint);
}

/* 订阅卡片 */
.page-article .subscribe-card {
  background: linear-gradient(135deg, #def5ff, #d2f5ff);
  border: 1px solid #aed3f3;
}

.page-article .subscribe-card .sidebar-title {
  margin-bottom: 10px;
}

.page-article .subscribe-desc {
  font-size: .88rem;
  color: var(--ink-soft);
  margin-bottom: 18px;
  line-height: 1.7;
}

.page-article .subscribe-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-article .subscribe-input {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--surface-line);
  border-radius: 12px;
  font-size: .9rem;
  background: #fff;
  outline: none;
  transition: border-color .3s;
  font-family: inherit;
}

.page-article .subscribe-input:focus {
  border-color: var(--blue);
}

.page-article .subscribe-btn {
  width: 100%;
  padding: 12px 20px;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  color: #fff;
  border: none;
  border-radius: 12px;
  font-size: .9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all .3s var(--ease);
  box-shadow: 0 4px 14px rgba(0, 119, 236, 0.25);
  font-family: inherit;
}

.page-article .subscribe-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 119, 236, 0.35);
}

/* 上一篇/下一篇导航 */
.page-article .post-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 32px;
}

.page-article .post-nav a {
  display: block;
  padding: 24px;
  background: #fff;
  border: 1px solid var(--surface-line);
  border-radius: 16px;
  text-decoration: none;
  transition: all .35s var(--ease);
}

.page-article .post-nav a:hover {
  transform: translateY(-4px);
  border-color: #7fbef3;
  box-shadow: 0 16px 32px -12px rgba(0, 114, 213, 0.25);
}

.page-article .post-nav .post-nav-next {
  text-align: right;
}

.page-article .post-nav .nav-label {
  display: block;
  font-size: .82rem;
  color: var(--ink-faint);
  margin-bottom: 8px;
  font-weight: 500;
}

.page-article .post-nav .nav-title {
  display: block;
  font-size: .95rem;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color .3s;
}

.page-article .post-nav a:hover .nav-title {
  color: var(--blue);
}

.page-article .post-nav-empty {
  display: block;
}

/* FAQ 区 */
.page-article .article-faq-section {
  padding: 80px 0;
  background: var(--surface-2);
}

.page-article .faq-list {
  max-width: 760px;
  margin: 0 auto;
}

.page-article .faq-item {
  margin-bottom: 16px;
  background: #fff;
  border: 1px solid var(--surface-line);
  border-radius: 16px;
  overflow: hidden;
  transition: all .35s var(--ease);
}

.page-article .faq-item.open {
  border-color: #7fbef3;
  box-shadow: 0 8px 24px rgba(0, 114, 213, 0.12);
}

.page-article .faq-question {
  width: 100%;
  padding: 20px 24px;
  background: none;
  border: none;
  text-align: left;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 16px;
  font-family: inherit;
  transition: background .3s;
}

.page-article .faq-question:hover {
  background: var(--surface-2);
}

.page-article .faq-num {
  flex-shrink: 0;
  font-size: .85rem;
  font-weight: 700;
  color: var(--blue);
  background: linear-gradient(135deg, #d3efff, #c4f0ff);
  padding: 4px 10px;
  border-radius: 8px;
}

.page-article .faq-q-text {
  flex: 1;
  font-size: .98rem;
  font-weight: 600;
  color: var(--ink);
}

.page-article .faq-plus {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  position: relative;
  transition: transform .3s var(--ease);
}

.page-article .faq-plus::before,
.page-article .faq-plus::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--blue);
  border-radius: 2px;
}

.page-article .faq-plus::before {
  width: 14px;
  height: 2px;
}

.page-article .faq-plus::after {
  width: 2px;
  height: 14px;
  transition: transform .3s var(--ease);
}

.page-article .faq-item.open .faq-plus::after {
  transform: translate(-50%, -50%) rotate(90deg);
  opacity: 0;
}

.page-article .faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s var(--ease);
}

.page-article .faq-answer p {
  padding: 0 24px 24px;
  font-size: .92rem;
  color: var(--ink-soft);
  line-height: 1.8;
  padding-left: 68px;
}

/* ========================================
   案例详情页 .single-case
   ======================================== */

.single-case .case-hero {
  padding: 140px 0 70px;
  background:
    radial-gradient(ellipse at 20% 0%, rgba(193, 226, 255, 0.5), transparent 50%),
    radial-gradient(ellipse at 80% 30%, rgba(175, 235, 238, 0.4), transparent 50%),
    var(--bg);
  position: relative;
  overflow: hidden;
}

.single-case .case-hero-content {
  max-width: 800px;
}

.single-case .case-industry-badge {
  display: inline-block;
  padding: 6px 16px;
  background: linear-gradient(135deg, #d3efff, #c4f0ff);
  border-radius: 999px;
  font-size: .82rem;
  color: var(--blue);
  font-weight: 600;
  margin-bottom: 20px;
}

.single-case .case-hero-title {
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -.02em;
  color: var(--ink);
  margin-bottom: 16px;
}

.single-case .case-hero-desc {
  font-size: 1.05rem;
  color: var(--ink-soft);
  margin-bottom: 32px;
  max-width: 640px;
  line-height: 1.8;
}

.single-case .case-hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  max-width: 600px;
}

.single-case .case-hero-stat {
  background: #fff;
  border: 1px solid var(--surface-line);
  border-radius: 16px;
  padding: 24px 20px;
  text-align: center;
  transition: all .35s var(--ease);
  position: relative;
  overflow: hidden;
}

.single-case .case-hero-stat::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blue), var(--cyan));
  opacity: 0;
  transition: opacity .35s var(--ease);
}

.single-case .case-hero-stat:hover {
  transform: translateY(-4px);
  border-color: #7fbef3;
  box-shadow: 0 12px 32px -12px rgba(0, 114, 213, 0.25);
}

.single-case .case-hero-stat:hover::before {
  opacity: 1;
}

.single-case .case-hero-stat .num {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
  margin-bottom: 6px;
  display: block;
}

.single-case .case-hero-stat .lbl {
  font-size: .82rem;
  color: var(--ink-faint);
}

/* 案例正文区 */
.single-case .case-body-wrap {
  padding: 60px 0;
}

.single-case .case-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 36px;
  align-items: start;
}

.single-case .case-main {
  min-width: 0;
}

.single-case .case-content {
  background: #fff;
  border: 1px solid var(--surface-line);
  border-radius: 24px;
  padding: 40px 48px;
  box-shadow: 0 2px 12px rgba(18, 35, 52, 0.04);
}

.single-case .case-featured-image {
  margin: -40px -48px 36px;
  width: calc(100% + 96px);
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-radius: 24px 24px 0 0;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
}

.single-case .case-featured-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.single-case .case-text {
  font-size: 1rem;
  line-height: 1.9;
  color: var(--ink-soft);
}

.single-case .case-text > * {
  margin-bottom: 1.4em;
}

.single-case .case-text > *:last-child {
  margin-bottom: 0;
}

.single-case .case-text h1,
.single-case .case-text h2,
.single-case .case-text h3,
.single-case .case-text h4,
.single-case .case-text h5,
.single-case .case-text h6 {
  color: var(--ink);
  font-weight: 700;
  line-height: 1.4;
  margin-top: 1.8em;
  margin-bottom: .8em;
  letter-spacing: -.01em;
}

.single-case .case-text h2 {
  font-size: 1.5rem;
}

.single-case .case-text h3 {
  font-size: 1.25rem;
}

.single-case .case-text p {
  color: var(--ink-soft);
  line-height: 1.9;
}

.single-case .case-text a {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color .3s;
}

.single-case .case-text a:hover {
  color: var(--blue-deep);
}

.single-case .case-text ul,
.single-case .case-text ol {
  padding-left: 1.5em;
}

.single-case .case-text li {
  margin-bottom: .6em;
}

/* 案例分块 */
.single-case .case-sections {
  margin-top: 36px;
  padding-top: 32px;
  border-top: 1px solid var(--surface-line);
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.single-case .case-section-block {
  padding: 28px;
  background: var(--surface-2);
  border-radius: 20px;
  border: 1px solid var(--surface-line);
  transition: all .35s var(--ease);
}

.single-case .case-section-block:hover {
  border-color: #7fbef3;
  box-shadow: 0 8px 24px rgba(0, 114, 213, 0.1);
}

.single-case .case-section-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.single-case .case-section-title .title-icon {
  font-size: 1.3rem;
}

.single-case .case-section-content {
  font-size: .95rem;
  color: var(--ink-soft);
  line-height: 1.85;
}

.single-case .case-section-content p {
  margin-bottom: 1em;
}

.single-case .case-section-content p:last-child {
  margin-bottom: 0;
}

/* 核心成果数据 */
.single-case .case-results-section {
  margin-top: 36px;
}

.single-case .case-results-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 24px;
  text-align: center;
}

.single-case .case-results-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.single-case .case-result-card {
  background: linear-gradient(160deg, #fff, #ebf7ff);
  border: 1px solid var(--surface-line);
  border-radius: 20px;
  padding: 36px 24px;
  text-align: center;
  transition: all .35s var(--ease);
  position: relative;
  overflow: hidden;
}

.single-case .case-result-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--blue), var(--cyan));
  opacity: 0;
  transition: opacity .35s var(--ease);
}

.single-case .case-result-card:hover {
  transform: translateY(-6px);
  border-color: #7fbef3;
  box-shadow: 0 20px 40px -16px rgba(0, 114, 213, 0.25);
}

.single-case .case-result-card:hover::before {
  opacity: 1;
}

.single-case .case-result-card .result-num {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
  margin-bottom: 10px;
  letter-spacing: -.02em;
}

.single-case .case-result-card .result-label {
  font-size: .88rem;
  color: var(--ink-soft);
  font-weight: 500;
}

/* 上一篇/下一篇导航 */
.single-case .post-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 32px;
}

.single-case .post-nav a {
  display: block;
  padding: 24px;
  background: #fff;
  border: 1px solid var(--surface-line);
  border-radius: 16px;
  text-decoration: none;
  transition: all .35s var(--ease);
}

.single-case .post-nav a:hover {
  transform: translateY(-4px);
  border-color: #7fbef3;
  box-shadow: 0 16px 32px -12px rgba(0, 114, 213, 0.25);
}

.single-case .post-nav .post-nav-next {
  text-align: right;
}

.single-case .post-nav .nav-label {
  display: block;
  font-size: .82rem;
  color: var(--ink-faint);
  margin-bottom: 8px;
  font-weight: 500;
}

.single-case .post-nav .nav-title {
  display: block;
  font-size: .95rem;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color .3s;
}

.single-case .post-nav a:hover .nav-title {
  color: var(--blue);
}

.single-case .post-nav-empty {
  display: block;
}

/* 侧边栏 */
.single-case .sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
  position: -webkit-sticky;
  position: sticky;
  top: 100px;
}

.single-case .sidebar-card {
  background: #fff;
  border: 1px solid var(--surface-line);
  border-radius: 20px;
  padding: 26px 24px;
  box-shadow: 0 2px 12px rgba(18, 35, 52, 0.04);
}

.single-case .sidebar-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.single-case .sidebar-title::before {
  content: '';
  width: 4px;
  height: 20px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--blue), var(--cyan));
}

/* 案例信息卡 */
.single-case .case-info-list {
  list-style: none;
}

.single-case .case-info-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 0;
  border-bottom: 1px dashed var(--surface-line);
  gap: 16px;
}

.single-case .case-info-list li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.single-case .case-info-list li:first-child {
  padding-top: 0;
}

.single-case .info-label {
  font-size: .85rem;
  color: var(--ink-faint);
  flex-shrink: 0;
}

.single-case .info-value {
  font-size: .9rem;
  font-weight: 600;
  color: var(--ink);
  text-align: right;
}

.single-case .info-value.result-tag {
  background: linear-gradient(135deg, #d3efff, #c4f0ff);
  color: var(--blue);
  padding: 4px 12px;
  border-radius: 999px;
  font-size: .82rem;
}

/* 更多案例列表 */
.single-case .more-cases-list {
  list-style: none;
}

.single-case .more-case-item {
  padding: 14px 0;
  border-bottom: 1px dashed var(--surface-line);
}

.single-case .more-case-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.single-case .more-case-item:first-child {
  padding-top: 0;
}

.single-case .more-case-link {
  display: flex;
  gap: 14px;
  text-decoration: none;
  transition: all .3s;
}

.single-case .more-case-link:hover .more-case-title {
  color: var(--blue);
}

.single-case .more-case-thumb {
  flex-shrink: 0;
  width: 80px;
  height: 60px;
  border-radius: 10px;
  overflow: hidden;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: .7rem;
  font-weight: 600;
}

.single-case .more-case-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.single-case .more-case-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.single-case .more-case-tag {
  font-size: .72rem;
  color: var(--blue);
  font-weight: 600;
  margin-bottom: 4px;
}

.single-case .more-case-title {
  font-size: .88rem;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color .3s;
  margin-bottom: 4px;
}

.single-case .more-case-result {
  font-size: .75rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* 侧边栏 CTA 卡片 */
.single-case .case-cta-card {
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  color: #fff;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.single-case .case-cta-card::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -20%;
  width: 60%;
  aspect-ratio: 1;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
}

.single-case .case-cta-card::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 50%;
  aspect-ratio: 1;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 50%;
}

.single-case .case-cta-card > * {
  position: relative;
  z-index: 2;
}

.single-case .case-cta-icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
}

.single-case .case-cta-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
}

.single-case .case-cta-desc {
  font-size: .85rem;
  opacity: .9;
  line-height: 1.7;
  margin-bottom: 20px;
}

.single-case .case-cta-card .btn {
  background: #fff;
  color: var(--blue);
  width: 100%;
  justify-content: center;
  padding: 12px 24px;
  font-size: .88rem;
}

.single-case .case-cta-card .btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

/* 相关案例区 */
.single-case .related-cases-section {
  padding: 80px 0;
  background: var(--surface-2);
}

.single-case .related-cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.single-case .case-card {
  background: #fff;
  border: 1px solid var(--surface-line);
  border-radius: 20px;
  overflow: hidden;
  transition: all .35s var(--ease);
  cursor: pointer;
}

.single-case .case-card:hover {
  transform: translateY(-6px);
  border-color: #7fbef3;
  box-shadow: 0 24px 48px -16px rgba(0, 114, 213, 0.25);
}

.single-case .case-thumb {
  width: 100%;
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: .05em;
  position: relative;
  overflow: hidden;
}

.single-case .case-thumb::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  inset: 0;
  background:
    radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.15), transparent 50%),
    radial-gradient(circle at 70% 70%, rgba(255, 255, 255, 0.1), transparent 50%);
}

.single-case .case-thumb.t1 { background: linear-gradient(135deg, #296cd8, #00a6c1); }
.single-case .case-thumb.t2 { background: linear-gradient(135deg, #5449d0, #008fd5); }
.single-case .case-thumb.t3 { background: linear-gradient(135deg, #009ba8, #37b880); }
.single-case .case-thumb.t4 { background: linear-gradient(135deg, #005eb3, #00919b); }
.single-case .case-thumb.t5 { background: linear-gradient(135deg, #6d48d1, #1289e7); }
.single-case .case-thumb.t6 { background: linear-gradient(135deg, #008cb7, #16b09b); }

.single-case .case-thumb span {
  position: relative;
  z-index: 2;
}

.single-case .case-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: relative;
  z-index: 1;
}

.single-case .case-body {
  padding: 24px 22px;
}

.single-case .case-tag {
  display: inline-block;
  padding: 4px 12px;
  background: linear-gradient(135deg, #d3efff, #c4f0ff);
  border-radius: 999px;
  font-size: .75rem;
  font-weight: 600;
  color: var(--blue);
  margin-bottom: 12px;
}

.single-case .case-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 10px;
  line-height: 1.4;
}

.single-case .case-title a {
  color: inherit;
  text-decoration: none;
  transition: color .3s;
}

.single-case .case-title a:hover {
  color: var(--blue);
}

.single-case .case-desc {
  font-size: .88rem;
  color: var(--ink-soft);
  line-height: 1.7;
  margin-bottom: 18px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.single-case .case-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--surface-line);
}

.single-case .case-metrics {
  display: flex;
  gap: 16px;
}

.single-case .case-metric {
  text-align: left;
}

.single-case .case-metric .val {
  font-size: 1rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

.single-case .case-metric .key {
  font-size: .72rem;
  color: var(--ink-faint);
  margin-top: 2px;
}

.single-case .case-link {
  font-size: .85rem;
  font-weight: 600;
  color: var(--blue);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: gap .3s var(--ease);
}

.single-case .case-card:hover .case-link {
  gap: 8px;
}

/* ========================================
   响应式 - 详情页
   ======================================== */

/* <= 1200px */
@media (max-width: 1200px) {
  .page-article .article-layout {
    grid-template-columns: 1fr 300px;
    gap: 28px;
  }
  .single-case .case-layout {
    grid-template-columns: 1fr 300px;
    gap: 28px;
  }
}

/* <= 1100px */
@media (max-width: 1100px) {
  .page-article .article-layout {
    grid-template-columns: 1fr 280px;
    gap: 24px;
  }
  .single-case .case-layout {
    grid-template-columns: 1fr 280px;
    gap: 24px;
  }
  .single-case .related-cases-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .single-case .case-results-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* <= 900px */
@media (max-width: 900px) {
  .page-article .article-layout {
    grid-template-columns: 1fr;
  }
  .page-article .sidebar {
    position: static;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
  .page-article .sidebar-card.author-card {
    grid-column: 1 / -1;
  }
  .page-article .sidebar-card.subscribe-card {
    grid-column: 1 / -1;
  }

  .single-case .case-layout {
    grid-template-columns: 1fr;
  }
  .single-case .sidebar {
    position: static;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
  .single-case .sidebar-card.case-info-card {
    grid-column: 1 / -1;
  }
  .single-case .sidebar-card.case-cta-card {
    grid-column: 1 / -1;
  }
}

/* <= 640px */
@media (max-width: 640px) {
  .page-article .article-hero {
    padding: 90px 0 20px;
  }
  .page-article .article-hero-title {
    font-size: 1.6rem;
    margin-bottom: 14px;
  }
  .page-article .article-meta-row {
    gap: 10px;
    font-size: .82rem;
  }
  .page-article .article-body-wrap {
    padding: 20px 0 40px;
  }
  .page-article .article-text blockquote {
    margin: 1.4em 0;
    padding: 18px 20px;
    font-size: 1rem;
  }
  .page-article .article-text > * {
    margin-bottom: 1.1em;
  }
  .page-article .article-content {
    background: none;
    border: none;
    border-radius: 0;
    padding: 0;
    box-shadow: none;
  }
  .page-article .article-featured-image {
    margin: 0 0 24px;
    width: 100%;
    border-radius: 12px;
  }
  .page-article .sidebar {
    grid-template-columns: 1fr;
  }
  .page-article .post-nav {
    grid-template-columns: 1fr;
  }
  .page-article .article-faq-section {
    padding: 50px 0;
  }
  .page-article .faq-answer p {
    padding-left: 56px;
  }

  .single-case .case-hero {
    padding: 100px 0 50px;
  }
  .single-case .case-hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .single-case .case-hero-stat {
    padding: 18px 14px;
  }
  .single-case .case-body-wrap {
    padding: 40px 0;
  }
  .single-case .case-content {
    padding: 28px 24px;
    border-radius: 20px;
  }
  .single-case .case-featured-image {
    margin: -28px -24px 28px;
    width: calc(100% + 48px);
    border-radius: 20px 20px 0 0;
  }
  .single-case .case-results-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .single-case .case-result-card {
    padding: 28px 20px;
  }
  .single-case .post-nav {
    grid-template-columns: 1fr;
  }
  .single-case .sidebar {
    grid-template-columns: 1fr;
  }
  .single-case .related-cases-section {
    padding: 50px 0;
  }
  .single-case .related-cases-grid {
    grid-template-columns: 1fr;
  }
  .single-case .case-sections {
    gap: 20px;
  }
  .single-case .case-section-block {
    padding: 20px;
  }
}

/* ========================================
   通用页面 Hero 区样式
   ======================================== */
.page-hero {
  padding: 140px 0 60px;
  background:
    radial-gradient(ellipse at 20% 0%, rgba(193, 226, 255, 0.5), transparent 50%),
    radial-gradient(ellipse at 80% 30%, rgba(175, 235, 238, 0.4), transparent 50%),
    var(--bg);
  position: relative;
  overflow: hidden;
}
.page-hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -.02em;
  margin-bottom: 16px;
}
.page-hero h1 .gradient {
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.page-hero-desc {
  font-size: 1.05rem;
  color: var(--ink-soft);
  margin-bottom: 32px;
  max-width: 640px;
  line-height: 1.8;
}
.search-box {
  display: flex;
  max-width: 520px;
  background: #fff;
  border: 1px solid var(--surface-line);
  border-radius: 999px;
  padding: 6px 6px 6px 24px;
  box-shadow: 0 4px 20px rgba(18, 35, 52, 0.06);
  align-items: center;
  transition: all .3s var(--ease);
}
.search-box:focus-within {
  border-color: var(--blue);
  box-shadow: 0 6px 28px rgba(0, 119, 236, 0.15);
}
.search-box form {
  display: flex;
  width: 100%;
  align-items: center;
}
.search-box input {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  font-size: .95rem;
  color: var(--ink);
  padding: 10px 0;
  font-family: inherit;
}
.search-box input::placeholder { color: var(--ink-faint); }
.search-btn {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  border: none;
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
  transition: transform .3s var(--ease);
}
.search-btn:hover { transform: scale(1.05); }

.category-section {
  padding: 40px 0 20px;
}
.category-list {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  list-style: none;
}
.category-item {
  display: inline-block;
  padding: 10px 22px;
  background: #fff;
  border: 1px solid var(--surface-line);
  border-radius: 999px;
  font-size: .88rem;
  color: var(--ink-soft);
  cursor: pointer;
  transition: all .3s var(--ease);
  font-weight: 500;
  white-space: nowrap;
  text-decoration: none;
}
.category-item:hover {
  border-color: var(--blue);
  color: var(--blue);
}
.category-item.active {
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 16px rgba(0, 119, 236, 0.25);
}

.articles-page {
  padding: 20px 0 60px;
}
.articles-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 36px;
  align-items: start;
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.article-card {
  background: #fff;
  border: 1px solid var(--surface-line);
  border-radius: 20px;
  overflow: hidden;
  transition: all .35s var(--ease);
  cursor: pointer;
  display: flex;
  flex-direction: column;
}
.article-card:hover {
  transform: translateY(-6px);
  border-color: #7fbef3;
  box-shadow: 0 24px 48px -16px rgba(0, 114, 213, 0.2);
}
.article-thumb {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
}
.article-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s var(--ease);
}
.article-card:hover .article-thumb img {
  transform: scale(1.05);
}
.article-thumb::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  inset: 0;
  background:
    radial-gradient(ellipse at 30% 30%, rgba(255, 255, 255, 0.2), transparent 50%),
    radial-gradient(ellipse at 70% 70%, rgba(255, 255, 255, 0.15), transparent 50%);
  z-index: 1;
  pointer-events: none;
}
.article-thumb .cat-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  padding: 6px 14px;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: 999px;
  color: #fff;
  font-size: .78rem;
  font-weight: 500;
  z-index: 2;
}
.article-body {
  padding: 22px 24px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.article-meta-top {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}
.article-cat {
  font-size: .78rem;
  color: var(--blue);
  font-weight: 600;
  padding: 4px 10px;
  background: linear-gradient(135deg, #d3efff, #c4f0ff);
  border-radius: 6px;
  text-decoration: none;
}
.article-dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--surface-line);
}
.article-date-small {
  font-size: .78rem;
  color: var(--ink-faint);
}
.article-title {
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.45;
  color: var(--ink);
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color .3s;
}
.article-title a { color: inherit; text-decoration: none; }
.article-card:hover .article-title { color: var(--blue); }
.article-excerpt {
  font-size: .9rem;
  color: var(--ink-soft);
  line-height: 1.75;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 18px;
  flex: 1;
}
.article-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--surface-line);
}
.article-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: .82rem;
  color: var(--ink-faint);
}
.article-meta span {
  display: flex;
  align-items: center;
  gap: 5px;
}
.read-more {
  font-size: .85rem;
  font-weight: 600;
  color: var(--blue);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: gap .3s var(--ease);
}
.article-card:hover .read-more { gap: 8px; }

.sidebar {
  display: flex;
  flex-direction: column;
  gap: 28px;
  position: -webkit-sticky;
  position: sticky;
  top: 100px;
}
.sidebar-card {
  background: #fff;
  border: 1px solid var(--surface-line);
  border-radius: 20px;
  padding: 26px 24px;
  box-shadow: 0 2px 12px rgba(18, 35, 52, 0.04);
}
.sidebar-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.sidebar-title::before {
  content: '';
  width: 4px;
  height: 20px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--blue), var(--cyan));
}

.popular-list {
  list-style: none;
  counter-reset: rank;
}
.popular-item {
  counter-increment: rank;
  display: flex;
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--surface-line);
  cursor: pointer;
  transition: all .3s;
}
.popular-item:last-child { border-bottom: none; padding-bottom: 0; }
.popular-item:first-child { padding-top: 0; }
.popular-item:hover .popular-title { color: var(--blue); }
.popular-rank {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: linear-gradient(135deg, #d3efff, #c4f0ff);
  color: var(--blue);
  font-size: .82rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.popular-item:nth-child(1) .popular-rank,
.popular-item:nth-child(2) .popular-rank,
.popular-item:nth-child(3) .popular-rank {
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  color: #fff;
}
.popular-content { flex: 1; min-width: 0; }
.popular-title {
  font-size: .9rem;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.5;
  margin-bottom: 4px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color .3s;
  text-decoration: none;
}
.popular-views {
  font-size: .78rem;
  color: var(--ink-faint);
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.tag-item {
  display: inline-block;
  padding: 7px 14px;
  background: var(--surface-2);
  border: 1px solid var(--surface-line);
  border-radius: 999px;
  font-size: .82rem;
  color: var(--ink-soft);
  cursor: pointer;
  transition: all .3s var(--ease);
  white-space: nowrap;
  text-decoration: none;
}
.tag-item:hover {
  border-color: var(--blue);
  color: var(--blue);
  background: #fff;
}
.tag-item.size-lg { font-size: .95rem; font-weight: 600; padding: 8px 18px; }
.tag-item.size-md { font-size: .88rem; }
.tag-item.size-sm { font-size: .78rem; }

.subscribe-card {
  background: linear-gradient(135deg, #def5ff, #d2f5ff);
  border: 1px solid #aed3f3;
}
.subscribe-card .sidebar-title { margin-bottom: 10px; }
.subscribe-desc {
  font-size: .88rem;
  color: var(--ink-soft);
  margin-bottom: 18px;
  line-height: 1.7;
}
.subscribe-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.subscribe-input {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--surface-line);
  border-radius: 12px;
  font-size: .9rem;
  background: #fff;
  outline: none;
  transition: border-color .3s;
  font-family: inherit;
}
.subscribe-input:focus { border-color: var(--blue); }
.subscribe-btn {
  width: 100%;
  padding: 12px 20px;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  color: #fff;
  border: none;
  border-radius: 12px;
  font-size: .9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all .3s var(--ease);
  box-shadow: 0 4px 14px rgba(0, 119, 236, 0.25);
}
.subscribe-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 119, 236, 0.35);
}

.pagination-section {
  padding: 20px 0 60px;
}
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  list-style: none;
  flex-wrap: wrap;
  margin-top: 40px;
}
.pagination .page-numbers {
  min-width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 14px;
  background: #fff;
  border: 1px solid var(--surface-line);
  border-radius: 12px;
  font-size: .9rem;
  font-weight: 500;
  color: var(--ink-soft);
  cursor: pointer;
  transition: all .3s var(--ease);
  text-decoration: none;
}
.pagination .page-numbers:hover {
  border-color: var(--blue);
  color: var(--blue);
}
.pagination .page-numbers.current {
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 14px rgba(0, 119, 236, 0.3);
}
.pagination .page-numbers.dots {
  border: none;
  background: transparent;
  cursor: default;
  padding: 0 4px;
}
.pagination .page-numbers.dots:hover {
  color: var(--ink-soft);
}
.pagination .prev,
.pagination .next {
  padding: 0 18px;
  gap: 6px;
  display: inline-flex;
  align-items: center;
}

.articles-empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--ink-soft);
}
.articles-empty a {
  color: var(--blue);
  font-weight: 500;
  text-decoration: none;
}

/* ========================================
   搜索结果页样式 .page-search
   ======================================== */
.page-search .articles-empty {
  text-align: center;
  padding: 60px 40px;
  background: #fff;
  border: 1px solid var(--surface-line);
  border-radius: 20px;
}
.page-search .search-empty-icon {
  font-size: 3.5rem;
  margin-bottom: 20px;
}
.page-search .articles-empty h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 12px;
}
.page-search .articles-empty p {
  font-size: 1rem;
  color: var(--ink-soft);
  line-height: 1.8;
  margin-bottom: 24px;
}
.page-search .articles-empty p strong {
  color: var(--blue);
  font-weight: 600;
}
.page-search .search-empty-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}


/* ========================================
   Hero 统计数据样式
   ======================================== */
.hero-stats {
  display: flex;
  gap: 28px;
  margin-top: 32px;
  flex-wrap: wrap;
}
.hero-stat-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.hero-stat-item .num {
  font-size: 1.8rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}
.hero-stat-item .label {
  font-size: .85rem;
  color: var(--ink-soft);
}

/* ========================================
   404页面样式 .page-404
   ======================================== */
.page-404 .error-404-section {
  padding: 120px 0 80px;
  position: relative;
  overflow: hidden;
}
.page-404 .error-404-wrap {
  max-width: 680px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 2;
}
.page-404 .error-404-number {
  font-size: clamp(6rem, 15vw, 10rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -.04em;
  margin-bottom: 24px;
  display: flex;
  justify-content: center;
  gap: .05em;
}
.page-404 .error-404-number .n1,
.page-404 .error-404-number .n2 {
  background: linear-gradient(180deg, var(--blue), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.page-404 .error-404-number .n0 {
  background: linear-gradient(180deg, var(--cyan), var(--purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.page-404 .error-404-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 12px;
}
.page-404 .error-404-desc {
  font-size: 1rem;
  color: var(--ink-soft);
  line-height: 1.8;
  margin-bottom: 32px;
}
.page-404 .error-404-search {
  max-width: 480px;
  margin: 0 auto 28px;
}
.page-404 .error-404-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* 404 装饰图形 */
.page-404 .error-404-deco {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  overflow: hidden;
}
.page-404 .deco-circle {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: .4;
}
.page-404 .deco-circle.c1 {
  width: 300px;
  height: 300px;
  background: #8cc3fc;
  top: 10%;
  left: 10%;
  animation: float 8s ease-in-out infinite;
}
.page-404 .deco-circle.c2 {
  width: 250px;
  height: 250px;
  background: #76e2e7;
  bottom: 15%;
  right: 8%;
  animation: float 10s ease-in-out infinite reverse;
}
.page-404 .deco-dot {
  position: absolute;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--blue);
  opacity: .3;
}
.page-404 .deco-dot.d1 { top: 20%; left: 25%; animation: pulse 3s ease-in-out infinite; }
.page-404 .deco-dot.d2 { top: 35%; right: 20%; width: 6px; height: 6px; animation: pulse 4s ease-in-out infinite 1s; }
.page-404 .deco-dot.d3 { bottom: 25%; left: 15%; width: 10px; height: 10px; animation: pulse 3.5s ease-in-out infinite .5s; }
.page-404 .deco-dot.d4 { bottom: 30%; right: 25%; animation: pulse 4.5s ease-in-out infinite 1.5s; }
.page-404 .deco-ring {
  position: absolute;
  border: 2px solid rgba(118, 181, 233, 0.3);
  border-radius: 50%;
}
.page-404 .deco-ring.r1 {
  width: 120px;
  height: 120px;
  top: 15%;
  right: 15%;
  animation: spin 20s linear infinite;
}
.page-404 .deco-ring.r2 {
  width: 80px;
  height: 80px;
  bottom: 20%;
  left: 20%;
  animation: spin 15s linear infinite reverse;
}

/* 404 推荐文章 */
.page-404 .error-404-suggest {
  padding: 60px 0 80px;
  background: var(--surface-2);
}
.page-404 .section-head {
  text-align: center;
  margin-bottom: 48px;
}
.page-404 .section-label {
  display: inline-block;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .15em;
  color: var(--blue);
  margin-bottom: 12px;
  text-transform: uppercase;
}
.page-404 .section-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  margin-bottom: 12px;
}
.page-404 .section-desc {
  font-size: 1rem;
  color: var(--ink-soft);
}
.page-404 .suggest-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.page-404 .suggest-card {
  background: #fff;
  border: 1px solid var(--surface-line);
  border-radius: 20px;
  overflow: hidden;
  transition: all .35s var(--ease);
}
.page-404 .suggest-card:hover {
  transform: translateY(-6px);
  border-color: #7fbef3;
  box-shadow: 0 24px 48px -16px rgba(0, 114, 213, 0.2);
}
.page-404 .suggest-thumb {
  position: relative;
  display: block;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
}
.page-404 .suggest-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s var(--ease);
}
.page-404 .suggest-card:hover .suggest-thumb img {
  transform: scale(1.05);
}
.page-404 .suggest-tag {
  position: absolute;
  top: 16px;
  left: 16px;
  padding: 6px 14px;
  background: rgba(255, 255, 255, .2);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: 999px;
  color: #fff;
  font-size: .78rem;
  font-weight: 500;
  z-index: 2;
}
.page-404 .suggest-body {
  padding: 22px 24px 24px;
}
.page-404 .suggest-body h3 {
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.45;
  margin-bottom: 10px;
  transition: color .3s;
}
.page-404 .suggest-body h3 a { color: inherit; text-decoration: none; }
.page-404 .suggest-card:hover .suggest-body h3 { color: var(--blue); }
.page-404 .suggest-body p {
  font-size: .88rem;
  color: var(--ink-soft);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 14px;
}
.page-404 .suggest-link {
  font-size: .85rem;
  font-weight: 600;
  color: var(--blue);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap .3s var(--ease);
}
.page-404 .suggest-card:hover .suggest-link { gap: 8px; }

/* ========================================
   联系我们页样式 .page-contact
   ======================================== */
.page-contact .contact-section {
  padding: 40px 0 80px;
}
.page-contact .contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 36px;
  align-items: start;
}

/* 联系信息卡片 */
.page-contact .contact-info-col {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.page-contact .contact-form-col {
}
.page-contact .contact-info-card {
  background: #fff;
  border: 1px solid var(--surface-line);
  border-radius: 24px;
  padding: 32px 28px;
  box-shadow: 0 2px 12px rgba(18, 35, 52, 0.04);
}
.page-contact .contact-info-header {
  margin-bottom: 28px;
}
.page-contact .section-label {
  display: inline-block;
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .15em;
  color: var(--blue);
  margin-bottom: 10px;
  text-transform: uppercase;
}
.page-contact .section-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.page-contact .section-desc {
  font-size: .92rem;
  color: var(--ink-soft);
}
.page-contact .contact-info-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.page-contact .contact-info-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 16px;
  background: var(--surface-2);
  border-radius: 16px;
  transition: all .3s var(--ease);
}
.page-contact .contact-info-item:hover {
  background: linear-gradient(135deg, #def5ff, #d2f5ff);
  transform: translateX(4px);
}
.page-contact .contact-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, #d3efff, #c4f0ff);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}
.page-contact .contact-info-text {
  flex: 1;
  min-width: 0;
}
.page-contact .ci-label {
  font-size: .78rem;
  color: var(--ink-faint);
  margin-bottom: 2px;
}
.page-contact .ci-value {
  font-size: .95rem;
  font-weight: 600;
  color: var(--ink);
  word-break: break-all;
}

/* 微信二维码卡片 */
.page-contact .contact-qr-card {
  background: linear-gradient(135deg, #def5ff, #d2f5ff);
  border: 1px solid #aed3f3;
  border-radius: 24px;
  padding: 28px;
  display: flex;
  gap: 20px;
  align-items: center;
}
.page-contact .qr-box-wrap {
  flex-shrink: 0;
  width: 120px;
  height: 120px;
  background: #fff;
  border-radius: 16px;
  padding: 8px;
  box-shadow: 0 4px 12px rgba(18, 35, 52, 0.08);
}
.page-contact .qr-box-wrap img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: 8px;
}
.page-contact .qr-info h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.page-contact .qr-info p {
  font-size: .88rem;
  color: var(--ink-soft);
  line-height: 1.7;
}

/* 联系表单卡片 */
.page-contact .contact-form-card {
  background: #fff;
  border: 1px solid var(--surface-line);
  border-radius: 24px;
  padding: 36px 32px;
  box-shadow: 0 2px 12px rgba(18, 35, 52, 0.04);
  display: flex;
  flex-direction: column;
}
.page-contact .contact-form-header {
  margin-bottom: 28px;
}

/* 表单样式 */
.page-contact .contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
  flex: 1;
}
.page-contact .form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.page-contact .form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.page-contact .form-group label {
  font-size: .88rem;
  font-weight: 600;
  color: var(--ink);
}
.page-contact .form-group label .required {
  color: #de3b3d;
  margin-left: 2px;
}
.page-contact .form-group input,
.page-contact .form-group select,
.page-contact .form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--surface-line);
  border-radius: 14px;
  font-size: .92rem;
  color: var(--ink);
  background: #fff;
  outline: none;
  transition: all .3s var(--ease);
  font-family: inherit;
}
.page-contact .form-group input:focus,
.page-contact .form-group select:focus,
.page-contact .form-group textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 4px rgba(0, 119, 236, 0.1);
}
.page-contact .form-group input::placeholder,
.page-contact .form-group textarea::placeholder {
  color: var(--ink-faint);
}
.page-contact .form-group textarea {
  resize: vertical;
  min-height: 100px;
  line-height: 1.6;
}
.page-contact .form-submit {
  width: 100%;
  padding: 14px 28px;
  font-size: 1rem;
  margin-top: 4px;
}
.page-contact .form-note {
  font-size: .8rem;
  color: var(--ink-faint);
  text-align: center;
  margin-top: -4px;
}

/* 表单成功/错误提示 */
.page-contact .form-success,
.page-contact .form-error {
  padding: 16px 20px;
  border-radius: 14px;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: .92rem;
  font-weight: 500;
}
.page-contact .form-success {
  background: #dbf8da;
  border: 1px solid #95cf96;
  color: #1d5522;
}
.page-contact .form-error {
  background: #ffe2de;
  border: 1px solid #f8a49d;
  color: #742e2b;
}
.page-contact .success-icon,
.page-contact .error-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .9rem;
  font-weight: 700;
}
.page-contact .success-icon {
  background: #5bb661;
  color: #fff;
}
.page-contact .error-icon {
  background: #f14d4c;
  color: #fff;
}

/* Contact Form 7 样式适配 */
.page-contact .wpcf7 {
  display: flex;
  flex-direction: column;
  gap: 20px;
  flex: 1;
}
.page-contact .wpcf7-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.page-contact .wpcf7-form p {
  margin: 0;
}
.page-contact .wpcf7-form br {
  display: none;
}
.page-contact .wpcf7 .hidden-fields-container {
  display: none;
}
.page-contact .wpcf7-form-control-wrap {
  display: block;
}
.page-contact .wpcf7 label {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: .88rem;
  font-weight: 600;
  color: var(--ink);
}
.page-contact .wpcf7 .form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.page-contact .wpcf7 .form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.page-contact .wpcf7 .form-row > p {
  display: none;
}
.page-contact .wpcf7 .wpcf7-text,
.page-contact .wpcf7 .wpcf7-tel,
.page-contact .wpcf7 .wpcf7-select,
.page-contact .wpcf7 .wpcf7-textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--surface-line);
  border-radius: 14px;
  font-size: .92rem;
  color: var(--ink);
  background: #fff;
  outline: none;
  transition: all .3s var(--ease);
  font-family: inherit;
  box-sizing: border-box;
}
.page-contact .wpcf7 .wpcf7-text:focus,
.page-contact .wpcf7 .wpcf7-tel:focus,
.page-contact .wpcf7 .wpcf7-select:focus,
.page-contact .wpcf7 .wpcf7-textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 4px rgba(0, 119, 236, 0.1);
}
.page-contact .wpcf7 .wpcf7-text::placeholder,
.page-contact .wpcf7 .wpcf7-textarea::placeholder {
  color: var(--ink-faint);
}
.page-contact .wpcf7 .wpcf7-textarea {
  resize: vertical;
  min-height: 100px;
  line-height: 1.6;
}
.page-contact .wpcf7 .wpcf7-submit {
  width: 100%;
  padding: 14px 28px;
  font-size: 1rem;
  margin-top: 4px;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  color: #fff;
  border: none;
  border-radius: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all .3s var(--ease);
  font-family: inherit;
}
.page-contact .wpcf7 .wpcf7-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px -6px rgba(0, 119, 236, 0.4);
}
.page-contact .wpcf7 .wpcf7-submit:active {
  transform: translateY(0);
}
.page-contact .wpcf7 .wpcf7-spinner,
.page-contact .wpcf7 .ajax-loader {
  display: none !important;
}
.page-contact .wpcf7 .wpcf7-not-valid-tip {
  font-size: .82rem;
  color: #b32228;
  margin-top: 4px;
}
.page-contact .wpcf7 .wpcf7 form.invalid .wpcf7-form-control-wrap,
.page-contact .wpcf7 .wpcf7 form.failed .wpcf7-form-control-wrap,
.page-contact .wpcf7 .wpcf7 form.aborted .wpcf7-form-control-wrap {
  border: none;
}
.page-contact .wpcf7 .wpcf7-form-control-wrap .wpcf7-not-valid {
  border-color: #f14d4c !important;
}
.page-contact .wpcf7 .wpcf7-response-output {
  margin: 0;
  padding: 16px 20px;
  border-radius: 14px;
  font-size: .92rem;
  font-weight: 500;
  border-width: 1px;
  border-style: solid;
}
.page-contact .wpcf7 .wpcf7-mail-sent-ok {
  background: #dbf8da;
  border-color: #95cf96;
  color: #1d5522;
}
.page-contact .wpcf7 .wpcf7-mail-sent-ng,
.page-contact .wpcf7 .wpcf7-validation-errors,
.page-contact .wpcf7 .wpcf7-acceptance-missing,
.page-contact .wpcf7 .wpcf7-spam-blocked {
  background: #ffe2de;
  border-color: #f8a49d;
  color: #742e2b;
}
.page-contact .wpcf7 .screen-reader-response {
  display: none;
}
.page-contact .wpcf7 fieldset {
  margin: 0;
  padding: 0;
  border: none;
}
.page-contact .wpcf7 .form-note {
  font-size: .8rem;
  color: var(--ink-faint);
  text-align: center;
  margin-top: -4px;
}

/* ========================================
   网站地图页样式 .page-sitemap
   ======================================== */
.page-sitemap .sitemap-section {
  padding: 40px 0 80px;
}
.page-sitemap .sitemap-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.page-sitemap .sitemap-card {
  background: #fff;
  border: 1px solid var(--surface-line);
  border-radius: 24px;
  padding: 32px 28px;
  box-shadow: 0 2px 12px rgba(18, 35, 52, 0.04);
  transition: all .35s var(--ease);
}
.page-sitemap .sitemap-card:hover {
  transform: translateY(-4px);
  border-color: #7fbef3;
  box-shadow: 0 20px 40px -16px rgba(0, 114, 213, 0.18);
}
.page-sitemap .sitemap-card-icon {
  font-size: 2.2rem;
  margin-bottom: 16px;
}
.page-sitemap .sitemap-card-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--surface-line);
}
.page-sitemap .sitemap-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.page-sitemap .sitemap-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.page-sitemap .sitemap-list li a {
  font-size: .92rem;
  color: var(--ink-soft);
  text-decoration: none;
  transition: all .3s var(--ease);
  padding: 6px 0;
  position: relative;
  padding-left: 16px;
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.page-sitemap .sitemap-list li a::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--surface-line);
  transition: all .3s var(--ease);
}
.page-sitemap .sitemap-list li a:hover {
  color: var(--blue);
  padding-left: 20px;
}
.page-sitemap .sitemap-list li a:hover::before {
  background: var(--blue);
  width: 8px;
  height: 8px;
}
.page-sitemap .sitemap-count {
  flex-shrink: 0;
  font-size: .78rem;
  color: var(--ink-faint);
  background: var(--surface-2);
  padding: 2px 8px;
  border-radius: 999px;
}
.page-sitemap .sitemap-empty {
  color: var(--ink-faint);
  font-size: .9rem;
  padding: 8px 0;
}
.page-sitemap .sitemap-more {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 18px;
  font-size: .88rem;
  font-weight: 600;
  color: var(--blue);
  text-decoration: none;
  transition: gap .3s var(--ease);
  padding-top: 16px;
  border-top: 1px solid var(--surface-line);
  width: 100%;
}
.page-sitemap .sitemap-more:hover { gap: 8px; }

/* 网站地图 - 标签 */
.page-sitemap .sitemap-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* 网站地图 - 联系列表 */
.page-sitemap .sitemap-contact-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 24px;
}
.page-sitemap .sitemap-contact-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: .92rem;
  color: var(--ink-soft);
}
.page-sitemap .sci-icon {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, #d3efff, #c4f0ff);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}
.page-sitemap .sci-text {
  flex: 1;
  min-width: 0;
}
.page-sitemap .sitemap-contact-btn {
  width: 100%;
  justify-content: center;
}

/* ========================================
   响应式样式 - 新增页面
   ======================================== */

/* >= 2000px (2K) */
@media (min-width: 2000px) {
  .container { max-width: 1500px; }
  
  .page-contact .contact-layout { gap: 48px; }
  .page-sitemap .sitemap-grid { gap: 32px; }
}

/* <= 1200px */
@media (max-width: 1200px) {
  .page-contact .contact-layout {
    grid-template-columns: 1fr;
  }
  .page-contact .contact-info-col {
    flex-direction: row;
  }
  .page-contact .contact-info-card,
  .page-contact .contact-qr-card {
    flex: 1;
  }
  
  .page-sitemap .sitemap-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* <= 1100px */
@media (max-width: 1100px) {
  .page-404 .suggest-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* <= 900px */
@media (max-width: 900px) {
  .page-hero { padding: 120px 0 50px; }
  
  .articles-layout {
    grid-template-columns: 1fr;
  }
  .sidebar {
    position: static;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
  .sidebar-card.subscribe-card {
    grid-column: 1 / -1;
  }
  
  .article-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
  
  .page-404 .error-404-section { padding: 100px 0 60px; }
  .page-404 .suggest-grid {
    grid-template-columns: 1fr;
  }
  
  .page-contact .contact-section { padding: 30px 0 60px; }
  .page-contact .contact-info-col {
    flex-direction: column;
  }
  .page-contact .contact-form-card { padding: 28px 24px; }
  
  .page-sitemap .sitemap-section { padding: 30px 0 60px; }
  .page-sitemap .sitemap-grid {
    grid-template-columns: 1fr;
  }
}

/* <= 640px */
@media (max-width: 640px) {
  .container { padding: 0 20px; }
  
  .page-hero { padding: 100px 0 40px; }
  .page-hero h1 { font-size: 1.8rem; }
  .page-hero-desc { font-size: .95rem; }
  
  .search-box {
    padding: 4px 4px 4px 18px;
  }
  .search-box input {
    font-size: .9rem;
    padding: 8px 0;
  }
  .search-btn {
    width: 38px;
    height: 38px;
  }
  
  .article-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .sidebar {
    grid-template-columns: 1fr;
  }
  
  .hero-stats {
    gap: 16px;
  }
  .hero-stat-item .num {
    font-size: 1.4rem;
  }
  
  .page-404 .error-404-actions {
    flex-direction: column;
  }
  .page-404 .error-404-actions .btn {
    width: 100%;
    justify-content: center;
  }
  .page-404 .error-404-desc br { display: none; }
  .page-404 .error-404-suggest { padding: 50px 0; }
  .page-404 .section-head { margin-bottom: 32px; }
  
  .page-contact .form-row {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .page-contact .contact-info-card { padding: 24px 20px; }
  .page-contact .contact-qr-card {
    flex-direction: column;
    text-align: center;
  }
  .page-contact .qr-info h3 { margin-bottom: 6px; }
  
  .page-sitemap .sitemap-card {
    padding: 24px 20px;
  }
  .page-sitemap .sitemap-card-icon {
    font-size: 1.8rem;
    margin-bottom: 12px;
  }
  .page-sitemap .sitemap-card-title {
    font-size: 1.05rem;
    margin-bottom: 16px;
    padding-bottom: 12px;
  }
  
  .pagination {
    gap: 6px;
    margin-top: 32px;
  }
  .pagination .page-numbers {
    min-width: 40px;
    height: 40px;
    font-size: .85rem;
    padding: 0 12px;
  }
}

/* <= 560px */
@media (max-width: 560px) {
  .page-404 .deco-ring.r1,
  .page-404 .deco-ring.r2 {
    display: none;
  }
}

/* ===== 回到顶部按钮 ===== */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 99;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: #fff;
  border: 1px solid var(--surface-line);
  color: var(--ink-soft);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(18, 35, 52, 0.08);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: all .3s var(--ease);
}
.back-to-top:hover {
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  color: #fff;
  border-color: transparent;
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 119, 236, 0.3);
}
.back-to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* ===== 移动端导航 ===== */
@media (max-width: 900px) {
  .nav-toggle {
    display: block;
    z-index: 101;
  }
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 320px;
    height: 100vh;
    background: #fff;
    flex-direction: column;
    gap: 0;
    padding: 80px 28px 32px;
    box-shadow: -8px 0 32px rgba(18, 35, 52, 0.1);
    transition: right .4s var(--ease);
    z-index: 100;
    overflow-y: auto;
  }
  .nav.open .nav-links {
    display: flex;
    right: 0;
  }
  .nav-links .nav-item {
    width: 100%;
    border-bottom: 1px solid var(--surface-line);
  }
  .nav-links .nav-link {
    width: 100%;
    padding: 16px 0;
    font-size: 1rem;
    justify-content: space-between;
  }
  .nav-links .sub-menu {
    position: static;
    transform: none;
    opacity: 1;
    visibility: visible;
    box-shadow: none;
    border: none;
    padding: 0 0 12px 16px;
    min-width: 0;
    display: none;
  }
  .nav-links .nav-item.open > .sub-menu {
    display: block;
  }
  .nav-links .mobile-no-dropdown > .nav-link .nav-arrow {
    display: none;
  }
  .nav-links .mobile-no-dropdown > .sub-menu {
    display: none !important;
  }
  .nav-links .sub-menu .nav-item {
    border-bottom: none;
  }
  .nav-links .sub-menu .nav-link {
    padding: 10px 0;
    font-size: .92rem;
  }
  .nav-cta {
    display: none;
  }
  .nav.open::before {
    content: '';
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    inset: 0;
    background: rgba(0, 0, 0, .4);
    z-index: 99;
  }
}
@media (max-width: 640px) {
  .nav-inner {
    padding: 12px 20px;
  }
  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 42px;
    height: 42px;
  }
}

/* ========================================
   移动端底部悬浮咨询条 (mb-bottombar)
   所有类名以 mbb- 为前缀，避免冲突
   ======================================== */
.mobile-bottom-bar {
  display: none;
}

@media (max-width: 640px) {

  .back-to-top { display: none; }

  .mobile-bottom-bar {
    display: flex;
    position: fixed;
    bottom: 0; left: 0; right: 0;
    z-index: 998;
    background: rgba(248, 250, 252, .92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-top: 1px solid rgba(226, 232, 240, .6);
    padding: 10px 16px;
    padding-bottom: max(10px, env(safe-area-inset-bottom));
    align-items: center;
    gap: 12px;
  }

  .mbb-cta {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    height: 44px;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--blue), var(--cyan));
    color: #fff;
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    border: none;
    cursor: pointer;
    text-decoration: none;
    box-shadow: 0 4px 16px rgba(0, 119, 236, 0.3);
    transition: opacity .15s, transform .15s;
    -webkit-tap-highlight-color: transparent;
  }
  .mbb-cta:active { opacity: .88; transform: scale(.98); }
  .mbb-cta-icon { flex-shrink: 0; width: 18px; height: 18px; }

  .mbb-back-top {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: #fff;
    border: 1px solid rgba(196, 207, 219, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background .15s;
    -webkit-tap-highlight-color: transparent;
  }
  .mbb-back-top:active { background: #dee9f5; }
  .mbb-back-top svg { width: 18px; height: 18px; color: #555; }
}

/* 弹出框 */
.mbb-overlay {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  inset: 0;
  z-index: 9999;
  background: rgba(0, 0, 0, .45);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s;
}
.mbb-overlay.active { opacity: 1; pointer-events: auto; }

.mbb-modal {
  background: #fff;
  border-radius: 20px 20px 0 0;
  width: 100%;
  max-width: 500px;
  padding: 32px 24px max(28px, env(safe-area-inset-bottom));
  text-align: center;
  transform: translateY(100%);
  transition: transform .3s cubic-bezier(.4, 0, .2, 1);
}
.mbb-overlay.active .mbb-modal { transform: translateY(0); }

.mbb-modal-icon {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(0, 119, 236, 0.15), rgba(0, 186, 197, 0.15));
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}
.mbb-modal-icon svg { width: 28px; height: 28px; color: var(--blue); }

.mbb-modal h3 { font-size: 1.15rem; color: #1a1a2e; margin-bottom: 8px; }
.mbb-modal .mbb-modal-sub { font-size: 0.85rem; color: #888; margin-bottom: 20px; }

.mbb-phone-box {
  background: #f7f8fa;
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 16px;
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
  -webkit-tap-highlight-color: transparent;
  position: relative;
}
.mbb-phone-box .phone-number {
  font-size: 1.5rem;
  font-weight: 700;
  color: #1a1a2e;
  letter-spacing: 0.03em;
  font-variant-numeric: tabular-nums;
}
.mbb-phone-box .phone-hint { font-size: 0.78rem; color: #999; margin-top: 4px; }

.mbb-modal-actions { display: flex; gap: 10px; }
.mbb-btn-call {
  flex: 1; height: 46px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  color: #fff;
  font-size: 0.92rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center; gap: 6px;
  text-decoration: none;
  box-shadow: 0 4px 12px rgba(0, 119, 236, 0.25);
  -webkit-tap-highlight-color: transparent;
}
.mbb-btn-call:active { opacity: .85; }
.mbb-btn-close {
  flex: 1; height: 46px;
  border-radius: 999px;
  background: #f0f1f3;
  color: #555;
  font-size: 0.92rem;
  font-weight: 500;
  border: none;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.mbb-btn-close:active { background: #e4e5e7; }

/* Toast */
.mbb-toast {
  position: fixed;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%) scale(.85);
  z-index: 99999;
  background: rgba(30, 30, 30, .92);
  color: #fff;
  padding: 14px 28px;
  border-radius: 28px;
  font-size: 0.9rem;
  font-weight: 500;
  pointer-events: none;
  opacity: 0;
  transition: opacity .2s, transform .2s;
  white-space: nowrap;
}
.mbb-toast.show { opacity: 1; transform: translate(-50%, -50%) scale(1); }

/* 微信跳转提示 */
.mbb-wechat-prompt {
  margin-top: 16px;
  padding: 14px;
  background: #f0fdf4;
  border-radius: 10px;
  font-size: 0.85rem;
  color: #166534;
  display: none;
  align-items: center; justify-content: center; gap: 8px;
}
.mbb-wechat-prompt.show { display: flex; }
.mbb-wechat-btn {
  display: inline-flex; align-items: center; gap: 4px;
  background: #16a34a; color: #fff;
  border: none; border-radius: 6px;
  padding: 6px 14px; font-size: 0.82rem; font-weight: 600;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.mbb-wechat-btn:active { opacity: .85; }