/* Google Fonts loaded via <link> in HTML head */
/* ========================================
   Vocabular 萌识 AIGEO - 主样式表
   基于现有网站风格延续
   ======================================== */

/* 色彩变量 - Vocabular 萌识 深蓝科技风 */
:root {
  --primary:#0A1929;      /* 深蓝色 */
  --primary-light:#1A365D;
  --secondary:#F0F4F8;    /* 浅灰蓝背景 */
  --accent:#60A5FA;       /* 电光蓝（CTA按钮） */
  --accent-hover:#3B82F6;
  --text: #1E293B;          /* 深灰蓝文字 */
  --text-secondary: #64748B; /* 中灰文字 */
  --border: #CBD5E1;       /* 分割线 */
  --success: #4caf50;       /* 绿色（成功） */
  --shadow: 0 2px 8px rgba(0,0,0,0.1);
  --radius: 8px;
  --radius-sm: 4px;
  --mode-navy: #0A1929;
  --mode-navy-deep: #060F1A;
  --mode-navy-soft: #DBEAFE;
  --mode-amber-soft: #E0E7FF;
  --mode-bg-warm: #F8FAFC;
  --mode-bg-card: #F0F4F8;
  --mode-border: #CBD5E1;
  --mode-text: #212121;
  --mode-text-2: #555;
  --mode-text-3: #888;
  --mode-font-cn: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
  --mode-font-display: "Playfair Display", Georgia, "Times New Roman", serif;
  --mode-ease: cubic-bezier(0.34,1.56,0.64,1);
  --mode-shadow: 0 8px 32px rgba(0,0,0,0.1);
}
/* Font loading: removed visibility:hidden to prevent flash */


/* 全局重置 */
* {
  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;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: #fff;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--primary-light);
}

img {
  max-width: 100%;
  height: auto;
}

/* 容器 */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ========================================
   导航栏
   ======================================== */
.navbar {
  background: var(--primary);
  box-shadow: 0 2px 12px rgba(0,0,0,0.15);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

/* Logo 拆分样式 */
.logo {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1.1;
  text-decoration: none;
  gap: 0;
}

.nav-logo-text {
  display: flex;
  flex-direction: row;
  align-items: baseline;
  gap: 6px;
}
.nav-logo-en {
  font-family: "Playfair Display", Georgia, "Times New Roman", serif;
  font-size: 1.5rem;
  font-weight: 900;
  font-style: italic;
  color: #fff;
  letter-spacing: 0.5px;
  text-shadow: 0 1px 3px rgba(0,0,0,0.3);
}
.nav-logo-cn {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 1.5rem;
  font-weight: 900;
  color: #fff;
  letter-spacing: 2px;
}
.nav-logo-tag {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 0.9rem;
  font-weight: 700;
  color: #60A5FA;
  letter-spacing: 1px;
}
.nav-logo-slogan {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 1rem;
  font-weight: 500;
  color: rgba(255,255,255,0.6);
  letter-spacing: 1px;
  margin-top: 2px;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 32px;
}

.nav-menu a {
  color: #fff;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--accent);
}

/* 汉堡菜单 */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: #fff;
  transition: 0.3s;
}

/* ========================================
   Hero Section
   ======================================== */

/* 按钮 */
.btn {
  display: inline-block;
  padding: 12px 32px;
  border-radius: var(--radius-sm);
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  border: none;
  text-align: center;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-hover);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(255,111,0,0.3);
}




.btn-large {
  padding: 16px 48px;
  font-size: 18px;
}

/* ========================================
   区块标题
   ======================================== */
.section-title {
  font-size: 24px;
  font-weight: 600;
  color: var(--primary);
  text-align: center;
  margin-bottom: 20px;
}

.section-desc {
  text-align: center;
  margin-top: 0;
  margin-bottom: 40px;
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.section-cta {
  text-align: center;
  margin-top: 48px;
}

/* ========================================
   三大卖点
   ======================================== */

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

/* 信任区块：4卡用2×2，避免3+1不协调 */
.trust-grid {
  grid-template-columns: repeat(2, 1fr);
}
@media (max-width: 768px) {
  .trust-grid {
    grid-template-columns: 1fr;
  }
}



/* ====== 功能卡片（4色方案） ====== */
.feature-card {
  padding: 44px 36px;
  border-radius: 14px;
  text-align: center;
  transition: transform 0.3s cubic-bezier(0.34,1.56,0.64,1), box-shadow 0.3s ease;
  box-shadow: 0 2px 10px rgba(0,0,0,0.06);
  position: relative;
  overflow: hidden;
}
.feature-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 14px;
  opacity: 0;
  background: radial-gradient(circle at 50% 0%, rgba(255,255,255,0.6) 0%, transparent 70%);
  transition: opacity 0.4s ease;
  pointer-events: none;
}
.feature-card:hover::after { opacity: 1; }
.feature-card:nth-child(4n+1) { background: #DBEAFE; }
.feature-card:nth-child(4n+2) { background: #E0E7FF; }
.feature-card:nth-child(4n+3) { background: #F3E8FF; }
.feature-card:nth-child(4n+4) { background: #FCE7F3; }
.feature-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 12px 32px rgba(0,0,0,0.12);
}
.feature-icon { font-size: 44px; margin-bottom: 16px; }
.feature-card h3 {
  font-size: 19px;
  font-weight: 700;
  color: #0A1929;
  margin-bottom: 12px;
}
.feature-card p {
  color: #444;
  line-height: 1.7;
  font-size: 15px;
}

/* ========================================
   精选案例
   ======================================== */
.cases-preview {
  padding: 80px 0;
}

.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}


/* ====== 案例卡片（4色方案） ====== */
.case-card {
  padding: 28px;
  border-radius: 14px;
  border: none;
  transition: transform 0.3s cubic-bezier(0.34,1.56,0.64,1), box-shadow 0.3s ease;
  box-shadow: 0 2px 10px rgba(0,0,0,0.06);
  position: relative;
  overflow: hidden;
}
.case-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 14px;
  opacity: 0;
  background: radial-gradient(circle at 50% 0%, rgba(255,255,255,0.6) 0%, transparent 70%);
  transition: opacity 0.4s ease;
  pointer-events: none;
}
.case-card:hover::after { opacity: 1; }
.case-card:nth-child(4n+1) { background: #DBEAFE; }
.case-card:nth-child(4n+2) { background: #E0E7FF; }
.case-card:nth-child(4n+3) { background: #F3E8FF; }
.case-card:nth-child(4n+4) { background: #FCE7F3; }
.case-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 12px 32px rgba(0,0,0,0.12);
}
.case-header { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.case-avatar {
  width: 48px; height: 48px; border-radius: 50%;
  background: #0A1929; color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 18px; flex-shrink: 0;
}
.case-meta h3 { font-size: 16px; font-weight: 600; margin-bottom: 4px; color: #0A1929; }
.case-meta p { font-size: 14px; color: #555; }
.case-result {
  background: rgba(96,165,250,0.15);
  color: #0A1929;
  padding: 8px 14px;
  border-radius: 8px;
  font-weight: 600;
  margin-bottom: 12px;
  font-size: 14px;
}
.case-summary {
  font-size: 14px; color: #555; line-height: 1.6;
  margin-bottom: 12px;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.case-link { font-size: 14px; font-weight: 600; color: #0A1929; }
.case-link:hover { color: #60A5FA; }

/* ========================================
   服务简介
   ======================================== */
.services-preview{ padding:80px 0; background:#F8FAFC; }

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}


/* ====== 服务卡片（4色方案） ====== */
.service-card {
  padding: 44px 36px;
  border-radius: 14px;
  text-align: center;
  transition: transform 0.3s cubic-bezier(0.34,1.56,0.64,1), box-shadow 0.3s ease;
  box-shadow: 0 2px 10px rgba(0,0,0,0.06);
  position: relative;
  overflow: hidden;
}
.service-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 14px;
  opacity: 0;
  background: radial-gradient(circle at 50% 0%, rgba(255,255,255,0.6) 0%, transparent 70%);
  transition: opacity 0.4s ease;
  pointer-events: none;
}
.service-card:hover::after { opacity: 1; }
.service-card:nth-child(4n+1) { background: #DBEAFE; }
.service-card:nth-child(4n+2) { background: #E0E7FF; }
.service-card:nth-child(4n+3) { background: #F3E8FF; }
.service-card:nth-child(4n+4) { background: #FCE7F3; }
.service-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 12px 32px rgba(0,0,0,0.12);
}
.service-card h3 {
  font-size: 19px;
  font-weight: 700;
  color: #0A1929;
  margin-bottom: 12px;
}
.service-card p {
  color: #444;
  margin-bottom: 24px;
  font-size: 15px;
  line-height: 1.7;
}

/* ========================================
   数据概览
   ======================================== */



/* 关于页 - 核心结论高亮 */
.about-highlight {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--primary);
  line-height: 1.8;
  margin: 20px 0;
}
/* 关于页 - 数据区 */
.about-stats {
  margin: 24px 0;
  padding: 16px 20px;
  background: rgba(10,25,41,0.06);
  border-radius: 8px;
  border-left: 3px solid var(--primary);
}
.about-stats p {
  font-size: 1rem;
  line-height: 2;
  margin: 0;
}
.about-stats strong {
  font-size: 1.15rem;
  color: var(--primary);
}



/* 价值观标题 */
.values-heading {
  color: var(--primary);
  margin-top: 28px;
  margin-bottom: 8px;
}


/* ========================================
   CTA 区域
   ======================================== */
.cta-section {
  background: var(--primary);
  color: #fff;
  padding: 80px 0;
  text-align: center;
}

.cta-section h2 {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 12px;
}

.cta-section p {
  font-size: 16px;
  margin-bottom: 32px;
  opacity: 0.9;
}

.cta-section .btn-primary {
  background: var(--accent);
  color: #fff;
}

/* ========================================
   Footer
   ======================================== */
.footer {
  background: #212121;
  color: #fff;
  padding: 64px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-col h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 16px;
}

.footer-tag {
  color: var(--accent);
}

.footer-intro {
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  line-height: 1.6;
  margin-top: 12px;
  max-width: 360px;
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 8px;
}

.footer-col a {
  color: rgba(255,255,255,0.7);
  transition: color 0.2s;
}

.footer-col a:hover {
  color: #fff;
}

.footer-col p {
  color: rgba(255,255,255,0.7);
  margin-bottom: 8px;
  font-size: 14px;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 32px;
  text-align: center;
  color: rgba(255,255,255,0.5);
  font-size: 14px;
}

.footer-bottom a {
  color: rgba(255,255,255,0.6);
  transition: color 0.2s;
}

.footer-bottom a:hover {
  color: #fff;
}

/* ========================================
   移动端侧滑导航面板
   ======================================== */
.mobile-nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10,25,41,0.5);
  z-index: 1100;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
}
.mobile-nav-overlay.active {
  opacity: 1;
  visibility: visible;
}

.mobile-nav-panel {
  position: fixed;
  top: 0;
  right: -320px;
  width: 300px;
  max-width: 85vw;
  height: 100vh;
  background: #fff;
  z-index: 1200;
  transition: right 0.35s cubic-bezier(0.34,1.56,0.64,1);
  overflow-y: auto;
  box-shadow: -8px 0 40px rgba(0,0,0,0.15);
}
.mobile-nav-panel.active {
  right: 0;
}

.mobile-nav-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}

.mobile-nav-logo {
  text-decoration: none;
}

.mobile-nav-logo-inner {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.mobile-nav-logo-row {
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.mobile-nav-brand-en {
  font-family: 'Playfair Display', Georgia, 'Times New Roman', serif;
  font-size: 1.2rem;
  font-weight: 700;
  font-style: italic;
  color: #0A1929;
}

.mobile-nav-brand-cn {
  font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
  font-size: 1.2rem;
  font-weight: 700;
  color: #0A1929;
}

.mobile-nav-brand-tag {
  font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  color: #60A5FA;
  letter-spacing: 1px;
}

.mobile-nav-brand-slogan {
  font-size: 0.85rem;
  color: #64748B;
  letter-spacing: 0.5px;
}

.mobile-nav-close {
  width: 32px;
  height: 32px;
  border: none;
  background: var(--secondary);
  border-radius: 50%;
  font-size: 16px;
  cursor: pointer;
  color: var(--primary);
  transition: background 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}
.mobile-nav-close:hover {
  background: var(--border);
}

.mobile-nav-links {
  list-style: none;
  padding: 8px 0;
}
.mobile-nav-links li a {
  display: block;
  padding: 14px 20px;
  font-size: 16px;
  font-weight: 500;
  color: var(--primary);
  border-bottom: 1px solid #F0F4F8;
  transition: background 0.2s, color 0.2s;
}
.mobile-nav-links li a:hover,
.mobile-nav-links li a.active {
  background: var(--secondary);
  color: var(--accent);
}

.mobile-nav-cta {
  display: block;
  margin: 16px 20px 24px;
  padding: 14px 24px;
  background: var(--accent);
  color: #fff;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  transition: background 0.2s;
}
.mobile-nav-cta:hover {
  background: var(--accent-hover);
}

/* ========================================
   联系浮窗
   ======================================== */


/* ========================================
   Tablet 适配 (768-1024px)
   ======================================== */
@media (max-width: 1024px) {
  .features-grid,
  .services-grid,
  .cases-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .data-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .dest-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .dest-card.main {
    grid-column: span 2;
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }

  .blog-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-grid {
    grid-template-columns: 1fr 1fr;
  }

  .hero-title {
    font-size: 2.2rem;
  }

  .data-number {
    font-size: 2.4rem;
  }

  .data-card {
    padding: 32px 16px;
  }

  .service-detail-card {
    padding: 36px;
  }
}

/* ========================================
   移动端适配 (<768px)
   ======================================== */
@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav-menu {
    display: none;
    background: var(--primary);
  }

  .nav-menu.active {
    display: flex;
  }

  .nav-menu li a {
    color: #fff;
    border-bottom-color: rgba(255,255,255,0.2);
  }

  .nav-menu li a:hover,
  .nav-menu li a.active {
    color: var(--accent);
  }

  .features-grid,
  .cases-grid,
  .services-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .section-title {
    font-size: 20px;
  }

  /* 联系页面移动端 */
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  /* 移动端：联系卡片（转化关键）先出现 */
  .contact-hero-text {
    order: 2;
  }

  .contact-info-card {
    order: 1;
  }

  .contact-hero-title {
    font-size: 1.8rem;
  }

  .contact-info-card {
    padding: 32px;
  }

  .contact-eval-grid {
    grid-template-columns: 1fr;
  }

  /* 浮窗按钮在768px以下缩小并调整位置 */
  .contact-float-btn {
    width: 48px;
    height: 48px;
    font-size: 20px;
    bottom: 16px;
    right: 16px;
  }

  .contact-panel {
    bottom: 76px;
    right: 16px;
    width: 260px;
  }

  .back-to-top {
    bottom: 72px;
    right: 16px;
    width: 36px;
    height: 36px;
  }
}

/* ========================================
   小屏幕手机适配 (<480px)
   ======================================== */
@media (max-width: 480px) {
  .hero-title {
    font-size: 1.5rem;
  }

  .hero-subtitle {
    font-size: 0.95rem;
  }

  .hero-tag {
    font-size: 12px;
    padding: 6px 12px;
  }

  .section-title {
    font-size: 18px;
  }

  .data-number {
    font-size: 1.8rem;
  }

  .data-card {
    padding: 24px 12px;
  }

  .service-detail-card {
    padding: 28px 20px;
  }

  .footer-intro {
    max-width: 100%;
  }

  .contact-info-card {
    padding: 24px;
  }
}

/* ========================================
   联系我们页面样式
   ======================================== */
.contact-hero {
  padding: 100px 0 60px;
  background: linear-gradient(135deg, #0A1929 0%, #1A365D 100%);
  color: #fff;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.contact-hero-title {
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', sans-serif;
  font-size: 2.4rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 24px;
}

.contact-hero-desc {
  font-size: 1.1rem;
  line-height: 2;
  opacity: 0.85;
  max-width: 480px;
}

.contact-info-card {
  background: #fff;
  border-radius: 16px;
  padding: 48px;
  box-shadow: 0 8px 40px rgba(0,0,0,0.2);
}

.contact-info-heading {
  font-size: 1.3rem;
  font-weight: 700;
  color: #0A1929;
  margin-bottom: 28px;
}

.contact-info-item {
  margin-bottom: 20px;
}

.contact-info-label {
  font-size: 0.8rem;
  color: #64748B;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 6px;
}

.contact-info-value {
  font-size: 1.1rem;
  color: #0A1929;
  font-weight: 600;
}

/* GEO诊断区块 */
.contact-eval {
  padding: 80px 0;
  background: #F8FAFC;
}

.contact-eval-inner {
  max-width: 800px;
  margin: 0 auto;
}

.contact-eval-grid {
  gap: 32px;
  margin-top: 48px;
}

.eval-offer-card {
  background: #fff;
  border-radius: 14px;
  padding: 40px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.06);
}

.eval-heading {
  font-size: 1.1rem;
  font-weight: 700;
  color: #0A1929;
  margin-bottom: 24px;
}

.eval-steps-card .eval-heading {
  color: #fff;
}

.eval-offer-list {
  list-style: none;
  padding: 0;
}

.eval-offer-item {
  padding: 12px 0;
  border-bottom: 1px solid #F0F4F8;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.eval-offer-item-last {
  border-bottom: none;
}

.eval-offer-num {
  color: #60A5FA;
  font-weight: 700;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.eval-offer-item strong {
  color: #1E293B;
}

.eval-offer-sub {
  color: #64748B;
  font-size: 0.9rem;
}

/* 如何获取 - 深色卡片 */
.eval-steps-card {
  background: linear-gradient(135deg, #0A1929, #1A365D);
  border-radius: 14px;
  padding: 40px;
  color: #fff;
}

.eval-steps {
  margin-bottom: 32px;
}

.eval-step {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 24px;
}

.eval-step-num {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(96,165,250,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-weight: 700;
  color: #60A5FA;
}

.eval-step strong {
  font-size: 1rem;
}

.eval-step-sub {
  opacity: 0.8;
  font-size: 0.9rem;
}

.eval-free-badge {
  background: rgba(96,165,250,0.15);
  border: 1px solid rgba(96,165,250,0.3);
  border-radius: 10px;
  padding: 16px;
  text-align: center;
}

.eval-free-highlight {
  color: #60A5FA;
}

.eval-free-note {
  opacity: 0.7;
  font-size: 0.85rem;
}

/* FAQ区块 */
.contact-faq {
  padding: 80px 0;
}

.faq-toggle {
  font-size: 1.2rem;
  color: #64748B;
}

/* ========================================
   关于我们页面特有样式
   ======================================== */
.about-hero {
  padding: 80px 0;
  background: var(--secondary);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 48px;
  align-items: start;
}

.about-photo {
  width: 100%;
  aspect-ratio: 1;
  background: var(--border);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
}

.about-content h2 {
  font-size: 24px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 16px;
}

.about-content p {
  margin-bottom: 16px;
  line-height: 1.8;
}

/* ========================================
   服务内容页面特有样式
   ======================================== */
.services-detail {
  padding: 80px 0;
}

.service-detail-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 48px;
  margin-bottom: 32px;
  transition: border-color 0.3s, box-shadow 0.3s;
}

/* GEO诊断卡高亮 — 转化漏斗入口 */
.service-detail-card--featured {
  border: 2px solid var(--accent);
  box-shadow: 0 0 0 4px rgba(96,165,250,0.15), var(--shadow);
  position: relative;
}

.service-badge-free {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 12px;
  vertical-align: middle;
  margin-left: 8px;
}

.service-audience {
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.service-meta {
  color: var(--text-secondary);
  font-size: 14px;
}

.service-price-free {
  color: var(--accent);
}

.service-cta {
  margin-top: 20px;
}

.service-detail-card h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 24px;
}

.service-detail-card ul {
  list-style: none;
  margin-bottom: 24px;
}

.service-detail-card li {
  padding: 8px 0;
  padding-left: 24px;
  position: relative;
}

.service-detail-card li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--success);
  font-weight: 700;
}

/* 服务对比表 */
.service-comparison {
  width: 100%;
  border-collapse: collapse;
  margin-top: 48px;
}

.service-comparison th,
.service-comparison td {
  padding: 16px;
  text-align: center;
  border: 1px solid var(--border);
}

.service-comparison th {
  background: var(--primary);
  color: #fff;
  font-weight: 600;
}

.service-comparison td:first-child {
  text-align: left;
  font-weight: 500;
}

/* ========================================
   案例页面特有样式
   ======================================== */


/* ========================================
   博客页面特有样式
   ======================================== */
.blog-hero {
  padding: 80px 0;
  background: var(--secondary);
}

.blog-tags {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.blog-tag {
  padding: 8px 16px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s;
}

.blog-tag:hover,
.blog-tag.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.blog-list {
  padding: 48px 0;
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.blog-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
}

.blog-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.blog-cover {
  width: 100%;
  aspect-ratio: 16/9;
  background: var(--secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
}

.blog-info {
  padding: 24px;
}

.blog-info .tag {
  display: inline-block;
  padding: 4px 12px;
  background: var(--secondary);
  border-radius: 12px;
  font-size: 12px;
  color: var(--primary);
  margin-bottom: 8px;
}

.blog-info h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
  line-height: 1.4;
}

.blog-info p {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-meta {
  font-size: 12px;
  color: var(--text-secondary);
}

/* ========================================
   博客文章正文排版
   ======================================== */
.blog-post h2 {
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: #0A1929;
  margin-top: 40px;
  margin-bottom: 16px;
  line-height: 1.4;
}

.blog-post h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: #0A1929;
  margin-top: 28px;
  margin-bottom: 12px;
  line-height: 1.4;
}

.blog-post p {
  font-size: 1rem;
  line-height: 1.8;
  color: #374151;
  margin-bottom: 16px;
}

.blog-post ul {
  padding-left: 20px;
  margin-bottom: 16px;
}

.blog-post li {
  font-size: 1rem;
  line-height: 1.8;
  color: #374151;
  margin-bottom: 8px;
}

.blog-post code {
  background: #F0F4F8;
  padding: 2px 6px;
  border-radius: 4px;
  font-family: "SF Mono", "Fira Code", monospace;
  font-size: 0.9em;
  color: #0A1929;
}

.blog-post strong {
  color: #0A1929;
  font-weight: 600;
}

.blog-post table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
}

@media (max-width: 768px) {
  .blog-post h2 { font-size: 1.3rem; }
  .blog-post h3 { font-size: 1rem; }
  .blog-post p { font-size: 0.95rem; }
}

/* ========================================
   联系我们页面特有样式
   ======================================== */


.faq-list {
  margin-top: 48px;
}

.faq-item {
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
}

.faq-item summary {
  list-style: none;
  cursor: pointer;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  float: right;
  font-size: 1.2rem;
  color: var(--text-secondary);
  transition: transform 0.2s;
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-question {
  font-weight: 600;
  color: var(--text);
  font-size: 1.05rem;
  padding-right: 24px;
}

.faq-answer {
  margin-top: 12px;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ========================================
   移动端补充
   ======================================== */
@media (max-width: 768px) {
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .blog-grid {
    grid-template-columns: 1fr;
  }

  .service-comparison {
    font-size: 14px;
  }

  .service-comparison th,
  .service-comparison td {
    padding: 8px;
  }
}


/* ========================================
   动画系统
   ======================================== */
@keyframes reveal {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes gentleFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.reveal-visible { opacity: 1; transform: translateY(0); }

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ========================================
   Hero 升级样式
   ======================================== */
.hero {
  background: linear-gradient(135deg, #0A1929 0%, #1A365D 100%);
  padding: 96px 0 80px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(96,165,250,0.1) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(96,165,250,0.06) 0%, transparent 40%);
  pointer-events: none;
}

.hero .hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
}

.hero-title {
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
  font-size: 2.8rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.25;
  margin-bottom: 20px;
  text-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.12);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.2);
  color: rgba(255,255,255,0.9);
  padding: 6px 16px;
  border-radius: 100px;
  font-size: 14px;
  margin-bottom: 24px;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.85);
  line-height: 1.8;
  margin-bottom: 40px;
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}

.highlight {
  color: #60A5FA;
  font-weight: 600;
}

.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,0.6);
}

.btn-outline:hover {
  background: #fff;
  color: #0A1929;
  border-color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

/* 深色outline按钮：用于浅底卡片(服务卡等)，原btn-outline是白字白边在浅底上不可见 */
.btn-outline-dark {
  background: transparent;
  color: #0A1929;
  border: 2px solid #0A1929;
}
.btn-outline-dark:hover {
  background: #0A1929;
  color: #fff;
  border-color: #0A1929;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(10,25,41,0.2);
}

/* 主推服务卡：全案 */
.service-card--featured {
  transform: scale(1.04);
  box-shadow: 0 8px 28px rgba(10,25,41,0.18);
  border: 2px solid var(--accent);
  z-index: 1;
}
.service-card--featured:hover {
  transform: scale(1.04) translateY(-8px);
  box-shadow: 0 16px 40px rgba(10,25,41,0.25);
}
/* 卡片角标(推荐/免费) */
.service-tag-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  background: var(--accent);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
  letter-spacing: 0.5px;
}
.service-tag-badge--free {
  background: #16a34a;
}

/* ========================================
   数据概览（4色卡片方案）
   ======================================== */
.data-overview {
  padding: 64px 0;
  background: #F8FAFC;
}

.data-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.data-card {
  padding: 40px 20px;
  border-radius: 12px;
  text-align: center;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.data-card:nth-child(1) { background: #DBEAFE; }
.data-card:nth-child(2) { background: #E0E7FF; }
.data-card:nth-child(3) { background: #F3E8FF; }
.data-card:nth-child(4) { background: #FCE7F3; }

.data-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.1);
}

.data-number {
  font-family: "Playfair Display", Georgia, "Times New Roman", serif;
  font-size: 3rem;
  font-weight: 800;
  color: #0A1929;
  margin-bottom: 8px;
  line-height: 1;
}

.data-label {
  font-size: 15px;
  font-weight: 600;
  color: #212121;
}

.data-source {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 4px;
  line-height: 1.4;
}


/* ====== 申请方向 ====== */
.dest-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.dest-card.main {
  grid-column: span 2;
  min-height: 280px;
}

.dest-card:not(.main) {
  min-height: 140px;
}
/* 5 card background colors */
.dest-card:not(.main):nth-child(2) { background: #DBEAFE; }
.dest-card:not(.main):nth-child(3) { background: #E0E7FF; }
.dest-card:not(.main):nth-child(4) { background: #F3E8FF; }
.dest-card:not(.main):nth-child(5) { background: #FCE7F3; }
.dest-card:not(.main):nth-child(6) { background: #E8F0E8; }

.dest-card.main {
  background: linear-gradient(135deg, #0A1929 0%, #1A365D 100%);
  color: #fff;
}
.dest-card:not(.main) {
  padding: 24px 20px;
}
.dest-card {
  position: relative;
  border-radius: 14px;
  padding: 32px 28px;
  background: #fff;
  box-shadow: 0 2px 10px rgba(0,0,0,0.06);
  transition: transform 0.3s cubic-bezier(0.34,1.56,0.64,1), box-shadow 0.3s ease;
  overflow: hidden;
}
.dest-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.1);
}

.dest-card.main .dest-name { color: #fff; }
.dest-card.main .dest-sub { color: rgba(255,255,255,0.7); }
.dest-card.main .dest-count { color: #60A5FA; font-size: 2.6rem; }
.dest-card.main .dest-count small { color: rgba(255,255,255,0.7); font-weight: 500; font-size: 0.45em; }
.dest-card:not(.main) .dest-count small { color: var(--text-secondary); font-size: 0.5em; }
.dest-card.main .dest-tag {
  background: rgba(255,255,255,0.15);
  color: rgba(255,255,255,0.9);
}


.dest-abbr {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
  margin-right: 12px;
  letter-spacing: 0.5px;
  vertical-align: middle;
  line-height: 1;
}
.dest-card.main .dest-abbr {
  color: rgba(255,255,255,0.85);
}
.platform-logo {
  transition: transform 0.2s ease;
}
.dest-card:hover .platform-logo {
  transform: scale(1.1);
}
.dest-detail {
  padding: 8px 0 0;
  font-size: 0.84em;
  line-height: 1.8;
  text-align: left;
}
.dest-detail-row {
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.dest-detail-label {
  color: rgba(255,255,255,0.55);
  white-space: nowrap;
  font-weight: 500;
  min-width: 60px;
}
.dest-detail-text {
  color: rgba(255,255,255,0.8);
}
/* 4色卡片循环 */







.dest-name {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 6px;
}
.dest-sub {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
}
.dest-count {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 16px;
}

.dest-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.dest-tag {
  font-size: 0.75rem;
  padding: 4px 12px;
  border-radius: 100px;
  background: var(--secondary);
  color: var(--primary);
  font-weight: 500;
}

/* 响应式 */
@media (max-width: 1024px) {
  .dest-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .dest-card.main {
    grid-column: span 2;
  }
}

@media (max-width: 768px) {
  .dest-grid {
    grid-template-columns: 1fr;
  }
  .dest-card.main {
    grid-column: span 1;
  }
  
  .dest-card:not(.main) {
    padding: 32px 28px;
  }
}


/* 联系页面右侧：二维码左右并列 */

/* 浮窗：二维码上下排列 */





/* ===== 联系浮窗 ===== */
.contact-float-btn {
  width: 56px;
  height: 56px;
  border: none;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-size: 24px;
  cursor: pointer;
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 1000;
  box-shadow: 0 4px 20px rgba(10,25,41,0.25);
  transition: transform 0.2s;
}
.contact-float-btn:hover {
  transform: scale(1.1);
}
.contact-panel {
  display: none;
  position: fixed;
  bottom: 100px;
  right: 32px;
  width: 280px;
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 8px 40px rgba(0,0,0,0.15);
  z-index: 1001;
  padding: 24px;
}
.contact-panel.active {
  display: block;
}
.contact-panel h4 {
  font-size: 16px;
  font-weight: 600;
  margin: 0 0 16px 0;
  color: var(--primary);
}
.contact-panel p {
  font-size: 14px;
  color: var(--text-secondary);
  margin: 0 0 8px 0;
  line-height: 1.5;
}
.contact-panel-qr {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid #eee;
}
.contact-panel-qr .qrcode-img {
  width: 110px;
  height: 110px;
  border-radius: 8px;
  object-fit: contain;
}



/* Feature bullet list */
.feature-list {
  list-style: none;
  padding: 0;
  margin: 0;
  text-align: left;
}
.feature-list li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 8px;
  color: var(--text-secondary);
  line-height: 1.7;
}
.feature-list li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
  font-size: 1.1em;
}

/* Hero subtitle lines - green highlight */
.hero-subtitle .highlight {
  color: #60A5FA;
  font-weight: 600;
}

/* ===== 移动端Hero/数据区适配补丁 ===== */
@media (max-width: 768px) {
  .hero-title { font-size: 1.75rem; }
  .hero-subtitle { font-size: 0.95rem; line-height: 1.7; }
  .hero { padding: 56px 0 48px; }
  .hero-tag { font-size: 12px; }
  .data-number { font-size: 2rem; }
  .data-card { padding: 24px 12px; }
  .data-label { font-size: 13px; }
  .nav-logo-en { font-size: 1.2rem; }
  .nav-logo-cn { font-size: 1.2rem; }
  .nav-logo-tag { font-size: 0.75rem; }
  .nav-logo-slogan { font-size: 0.8rem; }
  .nav-container { height: 56px; }
  .btn-large { padding: 14px 32px; font-size: 16px; }
}
/* ===== 案例卡片统一样式 ===== */
.case-tag-item {
  background: rgba(96,165,250,0.15);
  color: #0A1929;
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 12px;
  margin-right: 8px;
  display: inline-block;
}
.case-result-box {
  background: rgba(96,165,250,0.12);
  color: #0A1929;
  padding: 12px 16px;
  border-radius: 6px;
  font-weight: 600;
  margin-bottom: 12px;
}

/* 博客文章 - 对比表格 */
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  overflow-x: auto;
  display: block;
}
.comparison-table th,
.comparison-table td {
  padding: 12px 16px;
  border: 1px solid var(--border);
  text-align: left;
}
.comparison-table th {
  background: var(--primary);
  color: #fff;
  font-weight: 600;
  font-size: 14px;
}
.comparison-table td {
  font-size: 14px;
  line-height: 1.6;
}

@media (max-width: 768px) {
  .comparison-table {
    font-size: 13px;
  }
  .comparison-table th,
  .comparison-table td {
    padding: 8px 10px;
  }
}

/* ===== OG image补全 - 不影响CSS但标记 ===== */
/* ===== 浮窗精简样式 ===== */
.contact-panel-hint {
  color: #64748B;
  font-size: 13px;
  margin: 8px 0 12px;
}
.contact-panel-cta {
  display: block;
  text-align: center;
  margin-bottom: 10px;
}
.contact-panel-wechat {
  color: #64748B;
  font-size: 12px;
  margin: 0;
}
/* ===== 页面加载淡入 ===== */
body {
  animation: pageFadeIn 0.3s ease-out;
}
@keyframes pageFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* ===== 返回顶部按钮 ===== */
.back-to-top {
  position: fixed;
  bottom: 90px;
  right: 24px;
  width: 40px;
  height: 40px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 50%;
  font-size: 18px;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
  z-index: 997;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow);
}
.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}
.back-to-top:hover {
  background: var(--primary-light);
}