/* ==================== Design Tokens ==================== */
:root {
  --color-navy: #003767;
  --color-navy-dark: #002244;
  --color-green: #c1cd23;
  --color-orange: #ef5329;
  --color-white: #ffffff;
  --color-bg-light: #f8fafc;
  --color-text-dark: #0a1628;
  --color-text-gray: #6b7280;
  --color-text-light: rgba(255, 255, 255, 0.8);
  --color-text-muted: rgba(255, 255, 255, 0.5);
  --color-border: #e5e7eb;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --max-width: 1200px;
  --header-height: 72px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;

  --shadow-sm: 0 4px 16px rgba(0, 33, 71, 0.06);
  --shadow-md: 0 8px 32px rgba(0, 33, 71, 0.08);
  --shadow-glow-orange: 0 0 32px rgba(239, 83, 41, 0.5);
  --shadow-glow-green: 0 0 12px rgba(193, 205, 35, 0.4);

  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==================== Reset ==================== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body { font-family: var(--font-sans); color: var(--color-text-dark); line-height: 1.6; background: var(--color-white); overflow-x: hidden; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

/* ==================== Layout ==================== */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
section { position: relative; }

/* ==================== Header ==================== */
.site-header {
  position: sticky; top: 0; z-index: 100;
  height: var(--header-height);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 64px;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease;
}
.site-header.scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 2px 12px rgba(0, 33, 71, 0.08);
}
/* Logo - 双图叠层，根据 header 背景自动切换 */
.site-logo {
  display: inline-block;
  position: relative;
  height: 43px;
  line-height: 0;
  text-decoration: none;
}
.site-logo-img {
  display: block;
  height: 43px;
  width: auto;
  transition: opacity 0.4s ease;
}
/* 默认（深色 header）：显示浅色版，隐藏深色版 */
.site-logo-img--light { opacity: 1; }
.site-logo-img--dark { opacity: 0; position: absolute; top: 0; left: 0; }
/* 滚动后（浅色 header）：切换为深色版 */
.site-header.scrolled .site-logo-img--light { opacity: 0; }
.site-header.scrolled .site-logo-img--dark { opacity: 1; }
/* 导航页签：桌面端始终可见，顶部白色 → 滚动后灰色 */
.site-nav {
  display: flex; gap: 36px;
  transition: opacity 0.35s ease, visibility 0.35s ease;
}
.site-nav a { font-size: 15px; color: #fff; font-weight: 500; transition: color var(--transition); }
.site-nav a:hover { color: var(--color-green); }
.site-nav a.active { color: var(--color-green); font-weight: 600; }
.site-header.scrolled .site-nav a { color: var(--color-text-gray); }
.site-header.scrolled .site-nav a:hover { color: var(--color-navy); }
.site-header.scrolled .site-nav a.active { color: var(--color-navy); font-weight: 500; }
/* 预约咨询按钮：绿玻璃磨砂（透明态） */
.btn-header {
  padding: 10px 24px;
  background: rgba(193, 205, 35, 0.15);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(193, 205, 35, 0.3);
  color: var(--color-white);
  border-radius: var(--radius-sm); font-size: 15px; font-weight: 600;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.15), 0 2px 12px rgba(0, 0, 0, 0.08);
  transition: transform var(--transition), background var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.btn-header:hover {
  transform: translateY(-2px);
  background: rgba(193, 205, 35, 0.25);
  border-color: rgba(193, 205, 35, 0.45);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.25), 0 4px 16px rgba(0, 0, 0, 0.12);
}
/* 滚动态 header：浅蓝玻璃 */
.site-header.scrolled .btn-header {
  background: rgba(0, 55, 103, 0.08);
  border-color: rgba(0, 55, 103, 0.15);
  color: var(--color-navy);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.5), 0 2px 8px rgba(0, 33, 71, 0.06);
}
.site-header.scrolled .btn-header:hover {
  background: rgba(0, 55, 103, 0.15);
  border-color: rgba(0, 55, 103, 0.3);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.5), 0 4px 12px rgba(0, 33, 71, 0.1);
}
/* 汉堡按钮：桌面端隐藏，仅移动端显示 */
.nav-toggle {
  display: none;
  flex-direction: column; justify-content: center; gap: 5px;
  width: 40px; height: 40px; padding: 8px;
  cursor: pointer; border: none; background: none;
}
.nav-toggle-bar {
  display: block; width: 24px; height: 2px; border-radius: 2px;
  background: #fff;
  transition: background 0.4s ease, transform 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94), opacity 0.25s ease;
}
.site-header.scrolled .nav-toggle-bar { background: var(--color-navy); }
/* 打开时三横线变 X */
.nav-toggle.open .nav-toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open .nav-toggle-bar:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-toggle.open .nav-toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ==================== Hero + Stats Wrap ==================== */
.hero-section-wrap {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ==================== Hero ==================== */
.hero {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  flex: 1;
  margin-top: calc(-1 * var(--header-height));
  padding: calc(80px + var(--header-height)) 120px 80px;
  text-align: center;
  background-color: #002244;
  background-image:
    linear-gradient(135deg, rgba(0, 55, 103, 0.82) 0%, rgba(0, 34, 68, 0.88) 100%),
    url('/img/website_banner1.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; top: 0; right: 0;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(239, 83, 41, 0.3) 0%, transparent 70%);
  mix-blend-mode: screen; pointer-events: none;
}
.hero::after {
  content: ''; position: absolute; bottom: 0; left: 0;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(193, 205, 35, 0.25) 0%, transparent 70%);
  mix-blend-mode: screen; pointer-events: none;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 40px; margin-bottom: 32px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(193, 205, 35, 0.4);
  border-radius: 50px;
  color: var(--color-white); font-size: 14px; font-weight: 500;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
  position: relative; z-index: 1;
}
.hero h1 {
  font-size: 56px; font-weight: 700;
  line-height: 1.3; max-width: 900px; margin: 0 auto 24px;
  position: relative; z-index: 1;
  background: linear-gradient(90deg, #ffffff 0%, #d9ebb3 50%, #ffffff 100%);
  background-size: 200% auto;
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: shimmer 4s linear infinite;
}
.hero-subtitle {
  font-size: 18px; color: rgba(255, 255, 255, 0.85);
  max-width: 680px; margin: 0 auto 40px;
  position: relative; z-index: 1;
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.2);
}
.hero-cta { display: flex; gap: 16px; justify-content: center; position: relative; z-index: 1; }
.btn-primary {
  padding: 16px 40px;
  background: rgba(193, 205, 35, 0.18);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(193, 205, 35, 0.35);
  color: var(--color-white);
  border-radius: var(--radius-sm); font-size: 17px; font-weight: 600;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2), 0 8px 24px rgba(0, 0, 0, 0.12);
  transition: transform var(--transition), background var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.btn-primary:hover {
  transform: translateY(-3px);
  background: rgba(193, 205, 35, 0.28);
  border-color: rgba(193, 205, 35, 0.5);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.3), 0 12px 32px rgba(0, 0, 0, 0.15);
}
.btn-ghost {
  padding: 16px 40px; background: transparent; color: var(--color-white);
  border: 1px solid rgba(255, 255, 255, 0.3); border-radius: var(--radius-sm);
  font-size: 17px; font-weight: 500;
  transition: border-color var(--transition), background var(--transition);
}
.btn-ghost:hover { border-color: rgba(255, 255, 255, 0.6); background: rgba(255, 255, 255, 0.05); }
/* ==================== Stats Bar ==================== */
.stats-bar {
  display: flex; justify-content: space-around; align-items: center;
  padding: 48px 120px;
  background: var(--color-white);
  box-shadow: 0 2px 16px rgba(0, 33, 71, 0.05);
}
.stat { text-align: center; }
.stat-num { font-size: 32px; font-weight: 700; color: var(--color-text-dark); }
.stat-num.green { color: var(--color-green); }
.stat-label { font-size: 15px; color: var(--color-text-gray); margin-top: 6px; }

/* ==================== Pain Points ==================== */
.pain-points {
  padding: 80px 120px;
  background: var(--color-bg-light);
  text-align: center;
}
.section-title { font-size: 32px; font-weight: 700; color: var(--color-text-dark); margin-bottom: 16px; }
.accent-line { width: 60px; height: 4px; margin: 16px auto 48px; border-radius: 2px; background: linear-gradient(90deg, var(--color-orange), var(--color-green)); }
.cards-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card {
  background: var(--color-white); border-radius: var(--radius-lg);
  padding: 32px; text-align: left;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.card-icon {
  width: 48px; height: 48px; border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; font-weight: 700; margin-bottom: 20px;
}
.card-icon.orange { background: #fdecea; color: var(--color-orange); }
.card-icon.blue { background: #e0e8f0; color: var(--color-navy); }
.card-icon.green { background: #eff2d9; color: var(--color-green); }
.card h3 { font-size: 22px; font-weight: 600; color: var(--color-text-dark); margin-bottom: 12px; }
.card p { font-size: 15px; color: var(--color-text-gray); line-height: 1.7; }
.pain-summary { margin-top: 48px; font-size: 18px; color: var(--color-navy); font-weight: 500; }

/* ==================== Quote ==================== */
.quote-section {
  padding: 80px 120px;
  background: var(--color-navy);
  text-align: center;
  position: relative; overflow: hidden;
}
.quote-section::before {
  content: ''; position: absolute; top: 0; right: 0;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(193, 205, 35, 0.15) 0%, transparent 70%);
  mix-blend-mode: screen; pointer-events: none;
}
.quote-section::after {
  content: ''; position: absolute; bottom: 0; left: 0;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(239, 83, 41, 0.1) 0%, transparent 70%);
  mix-blend-mode: screen; pointer-events: none;
}
.quote-text {
  font-size: 28px; font-weight: 500; color: var(--color-white);
  max-width: 900px; margin: 0 auto 24px; line-height: 1.6;
  position: relative; z-index: 1;
}
.quote-attr {
  font-size: 16px; font-weight: 500; color: var(--color-green);
  position: relative; z-index: 1;
}

/* ==================== Core Advantages ==================== */
.core-advantages {
  padding: 100px 120px;
  background: var(--color-white);
  text-align: center;
}
.module {
  display: flex; align-items: center; gap: 64px;
  max-width: 1104px; margin: 0 auto 64px;
}
.module:last-child { margin-bottom: 0; }
.module:nth-child(odd) .module-visual { order: 1; }
.module:nth-child(odd) .module-content { order: 2; }
.module:nth-child(even) .module-content { order: 1; }
.module:nth-child(even) .module-visual { order: 2; }
.module-badge {
  display: inline-block; padding: 8px 16px; border-radius: 6px;
  font-size: 13px; font-weight: 700; letter-spacing: 2px; margin-bottom: 20px;
}
.module-badge.orange { background: rgba(239, 83, 41, 0.12); color: var(--color-orange); }
.module-badge.green { background: rgba(193, 205, 35, 0.12); color: var(--color-green); }
.module-badge.blue { background: rgba(0, 55, 103, 0.12); color: var(--color-navy); }
.module-content { flex: 1; text-align: left; }
.module-content h3 { font-size: 28px; font-weight: 700; color: var(--color-text-dark); margin-bottom: 16px; }
.module-content p { font-size: 17px; color: var(--color-text-gray); line-height: 1.7; }
.module-visual {
  flex: 1; height: 360px; border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-dark) 100%);
  box-shadow: 0 16px 48px rgba(0, 33, 71, 0.15);
}

/* ==================== CTA Section ==================== */
.cta-section {
  padding: 80px 120px;
  text-align: center;
  background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-dark) 100%);
  position: relative; overflow: hidden;
}
.cta-section::before {
  content: ''; position: absolute; top: 0; right: 0;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(239, 83, 41, 0.25) 0%, transparent 70%);
  mix-blend-mode: screen; pointer-events: none;
}
.cta-section::after {
  content: ''; position: absolute; bottom: 0; left: 0;
  width: 450px; height: 450px;
  background: radial-gradient(circle, rgba(193, 205, 35, 0.2) 0%, transparent 70%);
  mix-blend-mode: screen; pointer-events: none;
}
.cta-section h2 {
  font-size: 36px; font-weight: 700; color: var(--color-white);
  margin-bottom: 16px; position: relative; z-index: 1;
}
.cta-section p {
  font-size: 18px; color: var(--color-text-light);
  margin-bottom: 32px; position: relative; z-index: 1;
}
.cta-section .btn-primary { position: relative; z-index: 1; }

/* ==================== Footer ==================== */
html { scroll-behavior: smooth; }
[id] { scroll-margin-top: 80px; }
.site-footer {
  background: var(--color-navy);
  padding: 64px 120px 32px;
  position: relative;
}
.site-footer::before {
  content: ''; position: absolute; top: 0; right: 0;
  width: 600px; height: 400px;
  background: radial-gradient(circle, rgba(239, 83, 41, 0.12) 0%, transparent 70%);
  mix-blend-mode: screen; pointer-events: none;
}
.footer-line {
  position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: linear-gradient(90deg, var(--color-orange) 0%, var(--color-green) 50%, var(--color-navy) 100%);
}
.footer-top {
  display: flex; justify-content: space-between; align-items: flex-start; gap: 64px;
  margin-bottom: 48px; position: relative; z-index: 1;
}
.footer-brand { max-width: 400px; flex-shrink: 0; }
.footer-brand h4 { font-size: 24px; font-weight: 700; color: var(--color-white); margin-bottom: 16px; }
.footer-brand p { font-size: 14px; color: var(--color-text-light); line-height: 1.7; }
.footer-links { display: flex; gap: 64px; flex-shrink: 0; }
.footer-col h5 { font-size: 14px; font-weight: 600; color: var(--color-white); margin-bottom: 12px; }
.footer-col a { display: block; font-size: 14px; color: var(--color-text-light); margin-bottom: 8px; transition: color var(--transition); }
.footer-col a:hover { color: var(--color-white); }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 12px 24px;
  padding-top: 32px; border-top: 1px solid rgba(255, 255, 255, 0.1);
  position: relative; z-index: 1;
}
.footer-copyright {
  font-size: 13px; color: var(--color-text-muted); margin: 0;
}
.footer-filing {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
}
.filing-link {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 13px; color: var(--color-text-light);
  transition: color var(--transition);
}
.filing-link:hover { color: var(--color-white); }
.filing-icon { opacity: 0.6; flex-shrink: 0; }
/* 公网安备预留态：拿到备案号后移除此类即可恢复正常透明度 */
.filing-link--pending { color: var(--color-text-muted); opacity: 0.55; }
.filing-link--pending:hover { color: var(--color-text-muted); opacity: 0.75; }

/* Footer Social */
.footer-social { display: flex; gap: 12px; margin-top: 20px; position: relative; z-index: 2; }
.social-icon {
  position: relative;
  display: flex; align-items: center; justify-content: center;
  width: 40px; height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-text-light);
  cursor: pointer;
  transition: all var(--transition);
}
.social-icon:hover { color: var(--color-white); background: rgba(255, 255, 255, 0.2); transform: translateY(-2px); }
.social-icon svg { transition: transform var(--transition); }
.social-icon:hover svg { transform: scale(1.1); }
.qr-popup {
  position: absolute;
  bottom: calc(100% + 14px);
  left: 50%;
  width: 184px;            /* 160 image + 12*2 padding */
  box-sizing: border-box;
  transform: translateX(-50%) scale(0.85);
  transform-origin: center bottom;
  opacity: 0; visibility: hidden;
  transition: all 0.3s ease;
  background: #fff;
  border-radius: 14px;
  padding: 12px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.25);
  text-align: center;
  z-index: 100;
  white-space: nowrap;
}
.qr-popup img {
  display: block;
  width: 160px; height: 160px;
  max-width: none;         /* 覆盖全局 img { max-width: 100% }，避免被 .social-icon(40px) 限制 */
  border-radius: 8px;
}
.qr-popup p {
  font-size: 13px;
  color: var(--color-navy);
  margin-top: 8px; margin-bottom: 0;
  font-weight: 500;
}
.qr-popup::after {
  content: '';
  position: absolute;
  top: 100%; left: 50%;
  transform: translateX(-50%);
  border: 7px solid transparent;
  border-top-color: #fff;
}
.social-icon:hover .qr-popup,
.social-icon:focus .qr-popup,
.social-icon:active .qr-popup {
  opacity: 1; visibility: visible;
  transform: translateX(-50%) scale(1);
}

/* 移动端：弹窗锚点改到图标左边，避免向右溢出视口 */
@media (max-width: 768px) {
  .qr-popup {
    left: 0;
    transform: translateX(0) scale(0.85);
    transform-origin: left bottom;
  }
  .social-icon:hover .qr-popup,
  .social-icon:focus .qr-popup,
  .social-icon:active .qr-popup {
    transform: translateX(0) scale(1);
  }
  /* 箭头指向图标中心（40px 图标的中心 = left 20px） */
  .qr-popup::after { left: 20px; }
}

/* 超小屏：进一步缩小弹窗 */
@media (max-width: 380px) {
  .qr-popup { width: 156px; }
  .qr-popup img { width: 132px; height: 132px; }
  .qr-popup p { font-size: 12px; }
}

/* ==================== Compact Hero (inner pages) ==================== */
.hero-compact {
  position: relative;
  margin-top: calc(-1 * var(--header-height));
  padding: calc(60px + var(--header-height)) 120px 48px;
  text-align: center;
  background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-dark) 100%);
  overflow: hidden;
}
.hero-compact::before {
  content: ''; position: absolute; top: 0; right: 0;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(239, 83, 41, 0.3) 0%, transparent 70%);
  mix-blend-mode: screen; pointer-events: none;
}
.hero-compact::after {
  content: ''; position: absolute; bottom: 0; left: 0;
  width: 450px; height: 450px;
  background: radial-gradient(circle, rgba(193, 205, 35, 0.25) 0%, transparent 70%);
  mix-blend-mode: screen; pointer-events: none;
}
.hero-compact h1 {
  font-size: 36px; font-weight: 700; color: var(--color-white);
  margin-bottom: 16px; position: relative; z-index: 1;
}
.hero-compact p {
  font-size: 18px; color: var(--color-text-light);
  max-width: 700px; margin: 0 auto; position: relative; z-index: 1;
}

/* ==================== Pricing ==================== */
.pricing-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; max-width: 900px; margin: 0 auto; }
.pricing-card {
  border-radius: var(--radius-xl); padding: 48px; text-align: center;
  transition: transform var(--transition);
}
.pricing-card.basic { background: var(--color-white); box-shadow: var(--shadow-md); border: 2px solid var(--color-border); }
.pricing-card.premium {
  background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-dark) 100%);
  box-shadow: 0 16px 48px rgba(0, 33, 71, 0.2);
  position: relative; overflow: hidden;
}
.pricing-card.premium::before {
  content: ''; position: absolute; top: 0; right: 0;
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(239, 83, 41, 0.25) 0%, transparent 70%);
  mix-blend-mode: screen; pointer-events: none;
}
.pricing-badge {
  display: inline-block; padding: 8px 16px; border-radius: 6px;
  font-size: 13px; font-weight: 700; letter-spacing: 1px; margin-bottom: 24px;
}
.pricing-badge.basic { background: var(--color-bg-light); color: var(--color-text-gray); }
.pricing-badge.premium { background: rgba(239, 83, 41, 0.2); color: var(--color-orange); }
.pricing-price { font-size: 48px; font-weight: 700; margin-bottom: 16px; }
.pricing-card.basic .pricing-price { color: var(--color-text-dark); }
.pricing-card.premium .pricing-price { color: var(--color-white); }
.pricing-desc { font-size: 15px; margin-bottom: 32px; }
.pricing-card.basic .pricing-desc { color: var(--color-text-gray); }
.pricing-card.premium .pricing-desc { color: var(--color-text-light); }
.btn-outline {
  display: block; width: 100%; padding: 14px 32px;
  border: 2px solid var(--color-navy); border-radius: var(--radius-sm);
  font-size: 16px; font-weight: 600; color: var(--color-navy);
  background: var(--color-bg-light); transition: all var(--transition);
}
.btn-outline:hover { background: var(--color-navy); color: var(--color-white); }

/* ==================== Pricing (4 tiers) ==================== */
.pricing-cards--four { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; max-width: 1200px; margin: 0 auto; }
.pricing-card {
  border-radius: var(--radius-xl); padding: 40px 32px; text-align: center;
  transition: transform var(--transition);
  display: flex; flex-direction: column; align-items: center;
}
.pricing-card:hover { transform: translateY(-6px); }

/* Basic */
.pricing-card.basic { background: var(--color-white); box-shadow: var(--shadow-md); border: 2px solid var(--color-border); }
.pricing-card.basic .pricing-price { color: var(--color-text-dark); }
.pricing-card.basic .pricing-desc { color: var(--color-text-gray); }

/* Platinum */
.pricing-card.platinum { background: var(--color-white); box-shadow: var(--shadow-md); border: 2px solid var(--color-green); }
.pricing-card.platinum .pricing-price { color: var(--color-text-dark); }
.pricing-card.platinum .pricing-desc { color: var(--color-text-gray); }

/* Diamond (featured) */
.pricing-card.diamond {
  background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-dark) 100%);
  box-shadow: 0 16px 48px rgba(0, 33, 71, 0.25);
  position: relative; overflow: hidden;
  transform: translateY(-4px);
}
.pricing-card.diamond .pricing-price { color: var(--color-white); }
.pricing-card.diamond .pricing-desc { color: var(--color-text-light); }
.pricing-card.diamond .pricing-card-divider { background: rgba(255,255,255,0.15); }
.pricing-card.diamond .pricing-card-list li { color: var(--color-text-light); }
.pricing-card.diamond .check-icon { color: var(--color-green); }
.pricing-card.diamond:hover { transform: translateY(-10px); }

/* Black Diamond */
.pricing-card.black-diamond {
  background: linear-gradient(135deg, #1a1a2e 0%, #0f0f1a 100%);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.3);
  position: relative; overflow: hidden;
}
.pricing-card.black-diamond .pricing-price { color: #e8c547; }
.pricing-card.black-diamond .pricing-desc { color: var(--color-text-light); }
.pricing-card.black-diamond .pricing-card-divider { background: rgba(232,197,71,0.2); }
.pricing-card.black-diamond .pricing-card-list li { color: var(--color-text-light); }
.pricing-card.black-diamond .check-icon { color: #e8c547; }
.pricing-card.black-diamond::before {
  content: ''; position: absolute; top: -50%; right: -50%;
  width: 200%; height: 200%;
  background: radial-gradient(circle, rgba(232,197,71,0.06) 0%, transparent 50%);
  pointer-events: none;
}

.pricing-badge {
  display: inline-block; padding: 6px 14px; border-radius: 6px;
  font-size: 12px; font-weight: 700; letter-spacing: 1px; margin-bottom: 20px;
  text-transform: uppercase;
}
.pricing-badge.basic { background: var(--color-bg-light); color: var(--color-text-gray); }
.pricing-badge.platinum { background: rgba(193, 205, 35, 0.15); color: var(--color-green); }
.pricing-badge.diamond { background: rgba(239, 83, 41, 0.2); color: var(--color-orange); }
.pricing-badge.black-diamond { background: rgba(232, 197, 71, 0.15); color: #e8c547; }

.pricing-name { font-size: 20px; font-weight: 700; margin-bottom: 16px; color: var(--color-text-dark); }
.pricing-card.diamond .pricing-name { color: var(--color-white); }
.pricing-card.black-diamond .pricing-name { color: #e8c547; }

.pricing-price { font-size: 36px; font-weight: 700; margin-bottom: 8px; line-height: 1; }
.pricing-unit { font-size: 16px; font-weight: 500; opacity: 0.7; }
.pricing-desc { font-size: 14px; margin-bottom: 24px; line-height: 1.5; }

.pricing-card-divider {
  width: 100%; height: 1px; background: var(--color-border);
  margin-bottom: 20px;
}
.pricing-card-list { width: 100%; text-align: left; }
.pricing-card-list li {
  font-size: 14px; line-height: 2.2; color: var(--color-text-gray);
  display: flex; align-items: center; gap: 8px;
}
.check-icon { color: var(--color-green); font-weight: 700; font-size: 16px; }

/* ==================== Comparison Table ==================== */
.comparison-table-wrapper { max-width: 1100px; margin: 0 auto; overflow-x: auto; }
.comparison-table {
  width: 100%; border-collapse: collapse; min-width: 720px;
  border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow-md);
}
.comparison-table thead th {
  background: var(--color-navy); color: var(--color-white);
  padding: 20px 16px; text-align: center; font-weight: 600;
  font-size: 14px; border-bottom: 1px solid rgba(255,255,255,0.1);
}
.comparison-table thead th.col-feature {
  text-align: left; min-width: 240px;
  background: var(--color-navy-dark);
  position: sticky; left: 0; z-index: 2;
}
.comparison-table thead th.col-tier { min-width: 140px; }
.comparison-table thead .tier-header { font-size: 15px; font-weight: 700; margin-bottom: 4px; }
.comparison-table thead .tier-price { font-size: 13px; opacity: 0.8; font-weight: 500; }

.comparison-table tbody td {
  padding: 14px 16px; text-align: center; font-size: 14px;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-white);
}
.comparison-table tbody td:first-child {
  text-align: left; font-weight: 500; color: var(--color-text-dark);
  position: sticky; left: 0; z-index: 1;
  background: var(--color-white);
  border-right: 1px solid var(--color-border);
}
.comparison-table tbody tr:nth-child(even) td { background: var(--color-bg-light); }
.comparison-table tbody tr:nth-child(even) td:first-child { background: var(--color-bg-light); }
.comparison-table tbody tr:hover td { background: rgba(0, 55, 103, 0.03); }
.comparison-table tbody tr:hover td:first-child { background: rgba(0, 55, 103, 0.03); }

.check-mark { color: var(--color-green); font-weight: 700; font-size: 16px; }
.dash-mark { color: #d1d5db; font-size: 16px; }
.check-note { font-size: 12px; color: var(--color-text-gray); margin-left: 4px; }

/* ==================== Comparison (legacy) ==================== */
.comparison { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; max-width: 900px; margin: 0 auto; }
.comparison-col { padding: 40px; border-radius: var(--radius-lg); }
.comparison-col.basic { background: var(--color-bg-light); }
.comparison-col.premium { background: var(--color-navy); }
.comparison-col h3 { font-size: 18px; font-weight: 700; margin-bottom: 20px; }
.comparison-col.basic h3 { color: var(--color-text-dark); }
.comparison-col.premium h3 { color: var(--color-orange); }
.comparison-col ul li { font-size: 16px; line-height: 2; }
.comparison-col.basic ul li { color: var(--color-text-gray); }
.comparison-col.premium ul li { color: var(--color-text-light); }

/* ==================== Form ==================== */
.contact-form { display: grid; grid-template-columns: 1fr 400px; gap: 48px; max-width: 1000px; margin: 0 auto; }
.form-group { margin-bottom: 20px; text-align: left; }
.form-label { display: block; font-size: 14px; font-weight: 500; color: var(--color-text-gray); margin-bottom: 8px; text-align: left; }
.form-required { color: var(--color-orange); margin-left: 2px; }
.form-optional { font-size: 12px; color: #999; font-weight: 400; }
.form-input {
  width: 100%; height: 48px; padding: 0 16px;
  background: var(--color-bg-light); border: 1px solid var(--color-border);
  border-radius: var(--radius-sm); font-size: 15px; font-family: inherit;
  transition: border-color var(--transition);
}
.form-input:focus { outline: none; border-color: var(--color-navy); }
.form-textarea { min-height: 120px; padding: 16px; resize: vertical; }
/* 联系表单按钮：白底上绿玻璃需深色文字才可读 */
.contact-form .btn-primary {
  background: rgba(193, 205, 35, 0.25);
  border-color: rgba(193, 205, 35, 0.45);
  color: var(--color-navy);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.4), 0 4px 16px rgba(0, 0, 0, 0.06);
}
.contact-form .btn-primary:hover {
  background: rgba(193, 205, 35, 0.35);
  border-color: rgba(193, 205, 35, 0.55);
  color: var(--color-navy);
}
.info-card { background: var(--color-bg-light); border-radius: var(--radius-lg); padding: 32px; }
.info-card h3 { font-size: 18px; font-weight: 700; color: var(--color-text-dark); margin-bottom: 24px; }
.info-card p { font-size: 15px; color: var(--color-text-gray); margin-bottom: 16px; }

/* ==================== Content Cards ==================== */
.article-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.article-card {
  border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}
.article-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.article-visual { height: 180px; }
.article-visual.blue { background: linear-gradient(135deg, var(--color-navy), var(--color-navy-dark)); }
.article-visual.green { background: linear-gradient(135deg, var(--color-green), #8a9416); }
.article-visual.orange { background: linear-gradient(135deg, var(--color-orange), #b33d1e); }
.article-body { padding: 24px; background: var(--color-white); }
.article-body h3 { font-size: 18px; font-weight: 700; color: var(--color-text-dark); }

/* ==================== Values ==================== */
.values-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.value-card { background: var(--color-white); border-radius: var(--radius-lg); padding: 32px; box-shadow: var(--shadow-sm); }
.value-card h3 { font-size: 22px; font-weight: 700; margin-bottom: 12px; }
.value-card h3.orange { color: var(--color-orange); }
.value-card h3.blue { color: var(--color-navy); }
.value-card h3.green { color: var(--color-green); }
.value-card p { font-size: 15px; color: var(--color-text-gray); line-height: 1.7; }

/* ==================== Story ==================== */
.story-row { display: flex; align-items: center; gap: 64px; max-width: 1104px; margin: 0 auto; }
.story-text { flex: 1; text-align: left; }
.story-text p { font-size: 17px; color: var(--color-text-gray); line-height: 1.8; margin-bottom: 20px; }
.story-visual { flex: 1; height: 320px; border-radius: var(--radius-lg); background: linear-gradient(135deg, var(--color-navy), var(--color-navy-dark)); box-shadow: 0 16px 48px rgba(0, 33, 71, 0.15); }

/* ==================== Tags ==================== */
.tag-row { display: flex; gap: 16px; justify-content: center; margin-top: 32px; }
.tag { padding: 10px 20px; border-radius: 20px; font-size: 14px; font-weight: 500; background: rgba(239, 83, 41, 0.08); color: var(--color-orange); }

/* ==================== Animations ==================== */
@keyframes shimmer { 0% { background-position: 0% center; } 100% { background-position: 200% center; } }
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ==================== QR Code Modal ==================== */
.qr-modal-overlay {
  position: fixed; inset: 0; z-index: 9999;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden;
  transition: opacity 0.35s ease, visibility 0.35s ease;
}
.qr-modal-overlay.active {
  opacity: 1; visibility: visible;
}
.qr-modal {
  position: relative;
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: 48px 40px 40px;
  max-width: 400px; width: 90%;
  text-align: center;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.25);
  transform: translateY(20px) scale(0.96);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}
.qr-modal-overlay.active .qr-modal {
  transform: translateY(0) scale(1);
}
.qr-modal-close {
  position: absolute; top: 12px; right: 16px;
  width: 40px; height: 40px;
  font-size: 28px; line-height: 1; color: #999;
  background: none; border: none; cursor: pointer;
  border-radius: 50%;
  transition: color var(--transition), background var(--transition);
  display: flex; align-items: center; justify-content: center;
}
.qr-modal-close:hover {
  color: var(--color-text-dark);
  background: var(--color-bg-light);
}
.qr-modal-body { }
.qr-modal-image {
  width: 200px; height: 200px;
  margin: 0 auto 24px;
  display: block;
  border-radius: var(--radius-md);
  box-shadow: 0 4px 20px rgba(0, 33, 71, 0.08);
}
.qr-modal-title {
  font-size: 20px; font-weight: 700; color: var(--color-text-dark);
  margin-bottom: 8px;
}
.qr-modal-desc {
  font-size: 14px; color: var(--color-text-gray);
  line-height: 1.6;
}

/* ==================== Pricing (3 tiers) ==================== */
.pricing-cards--three { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; max-width: 1180px; margin: 0 auto; align-items: stretch; }
.pricing-cards--three .pricing-card { padding: 44px 32px 36px; position: relative; }

/* 白银：浅色基础 */
.pricing-card.basic { background: var(--color-white); box-shadow: var(--shadow-md); border: 2px solid var(--color-border); }
.pricing-card.basic .pricing-price { color: var(--color-text-dark); }
.pricing-card.basic .pricing-desc { color: var(--color-text-gray); }
.pricing-card.basic .list-level { color: var(--color-text-gray); }

/* 白金：白底 + 绿边 + 推荐位（中央上移） */
.pricing-card.platinum {
  background: var(--color-white);
  box-shadow: 0 20px 56px rgba(0, 55, 103, 0.16);
  border: 2px solid var(--color-green);
  transform: translateY(-12px);
}
.pricing-card.platinum:hover { transform: translateY(-18px); }
.pricing-card.platinum .pricing-price { color: var(--color-navy); }
.pricing-card.platinum .pricing-desc { color: var(--color-text-gray); }
.pricing-card.platinum .list-level.highlight { color: var(--color-green); font-weight: 700; }
.pricing-card.platinum .pricing-recommend {
  position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  background: var(--color-green);
  color: var(--color-navy);
  font-size: 12px; font-weight: 700; letter-spacing: 1px;
  padding: 6px 16px; border-radius: 20px;
  box-shadow: 0 4px 12px rgba(193, 205, 35, 0.4);
}

/* 黑钻：深色 + 金色 */
.pricing-card.black-diamond {
  background: linear-gradient(135deg, #1a1a2e 0%, #0f0f1a 100%);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.3);
  position: relative; overflow: hidden;
}
.pricing-card.black-diamond .pricing-price { color: #e8c547; }
.pricing-card.black-diamond .pricing-desc { color: var(--color-text-light); }
.pricing-card.black-diamond .pricing-card-divider { background: rgba(232, 197, 71, 0.2); }
.pricing-card.black-diamond .pricing-card-list li { color: var(--color-text-light); }
.pricing-card.black-diamond .check-icon { color: #e8c547; }
.pricing-card.black-diamond .list-level.gold { color: #e8c547; font-weight: 700; }
.pricing-card.black-diamond .pricing-position.light { color: #e8c547; }
.pricing-card.black-diamond::before {
  content: ''; position: absolute; top: -50%; right: -50%;
  width: 200%; height: 200%;
  background: radial-gradient(circle, rgba(232, 197, 71, 0.06) 0%, transparent 50%);
  pointer-events: none;
}

.pricing-position {
  font-size: 14px; font-weight: 600; color: var(--color-navy);
  letter-spacing: 1px; margin-bottom: 20px;
}
.pricing-position.light { color: #e8c547; }
.pricing-card.basic .pricing-position { color: var(--color-text-gray); }
.pricing-card.platinum .pricing-position { color: var(--color-green); }

.list-level {
  display: block; width: 100%;
  font-size: 13px; font-weight: 600; letter-spacing: 1px;
  padding: 4px 0 8px; border-bottom: 1px dashed var(--color-border);
  margin-bottom: 4px;
}
.pricing-card.black-diamond .list-level { border-bottom-color: rgba(232, 197, 71, 0.2); }

/* 卡片底部 CTA 按钮 */
.pricing-cta-btn {
  display: block; width: 100%; margin-top: 28px;
  padding: 12px 24px; border-radius: var(--radius-sm);
  font-size: 15px; font-weight: 600;
  text-align: center; cursor: pointer;
  transition: all var(--transition);
}
.pricing-cta-btn.outline {
  background: var(--color-bg-light);
  border: 1.5px solid var(--color-border);
  color: var(--color-navy);
}
.pricing-cta-btn.outline:hover {
  background: var(--color-navy);
  border-color: var(--color-navy);
  color: var(--color-white);
}
.pricing-cta-btn.platinum {
  background: var(--color-green);
  border: 1.5px solid var(--color-green);
  color: var(--color-navy);
  box-shadow: 0 4px 12px rgba(193, 205, 35, 0.35);
}
.pricing-cta-btn.platinum:hover {
  background: #b8c41f;
  border-color: #b8c41f;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(193, 205, 35, 0.5);
}
.pricing-cta-btn.gold {
  background: linear-gradient(135deg, #e8c547 0%, #c9a734 100%);
  border: 1.5px solid #c9a734;
  color: #1a1a2e;
  box-shadow: 0 4px 12px rgba(232, 197, 71, 0.35);
}
.pricing-cta-btn.gold:hover {
  background: linear-gradient(135deg, #f0d36a 0%, #d6b340 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(232, 197, 71, 0.5);
}

/* ==================== Comparison Table (3 tiers) ==================== */
.comparison-table--three { min-width: 720px; }
.comparison-table--three thead th.col-tier-platinum {
  background: linear-gradient(180deg, #1f5680 0%, var(--color-navy) 100%);
  border-left: 2px solid var(--color-green);
  border-right: 2px solid var(--color-green);
}
.comparison-table--three thead th.col-tier-black {
  background: linear-gradient(180deg, #1a1a2e 0%, #0f0f1a 100%);
  color: #e8c547;
}
.comparison-table--three thead th.col-tier-black .tier-price { color: rgba(232, 197, 71, 0.85); }
.comparison-table--three tbody td.col-tier-platinum,
.comparison-table--three tbody td.col-tier-black { font-weight: 500; }
.comparison-table--three tbody tr.group-row td {
  background: var(--color-navy) !important;
  color: var(--color-white);
  font-size: 13px; font-weight: 700; letter-spacing: 1px;
  text-align: left; padding: 12px 16px;
}
.comparison-table--three tbody tr.group-row td:first-child {
  position: static;
  background: var(--color-navy) !important;
  border-right: none;
}

/* ==================== Addons (增值消费) ==================== */
.addons-section { padding-top: 72px; padding-bottom: 72px; }
.addons-subtitle {
  font-size: 16px; color: var(--color-text-gray);
  max-width: 720px; margin: -16px auto 48px;
}
.addons-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
  max-width: 1100px; margin: 0 auto;
}
.addon-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  text-align: left;
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: transform var(--transition), box-shadow var(--transition);
}
.addon-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.addon-card.featured-addon {
  border: 2px solid var(--color-green);
  background: linear-gradient(180deg, rgba(193, 205, 35, 0.05) 0%, var(--color-white) 30%);
}
.addon-icon {
  width: 48px; height: 48px; border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px;
}
.addon-icon.orange { background: rgba(239, 83, 41, 0.12); color: var(--color-orange); }
.addon-icon.green { background: rgba(193, 205, 35, 0.18); color: #6e7a0f; }
.addon-icon.navy { background: rgba(0, 55, 103, 0.1); color: var(--color-navy); }
.addon-card h3 {
  font-size: 18px; font-weight: 700;
  color: var(--color-text-dark);
  margin-bottom: 12px;
}
.addon-card p {
  font-size: 14px; color: var(--color-text-gray);
  line-height: 1.7; margin-bottom: 16px;
}
.addon-tag {
  display: inline-block;
  padding: 4px 12px; border-radius: 12px;
  font-size: 12px; font-weight: 600;
  background: var(--color-bg-light); color: var(--color-text-gray);
}
.addon-tag.gold { background: rgba(232, 197, 71, 0.15); color: #a6841f; }

@media (max-width: 1024px) {
  .pricing-cards--three { grid-template-columns: 1fr; gap: 24px; }
  .pricing-card.platinum { transform: none; }
  .pricing-card.platinum:hover { transform: translateY(-4px); }
  .addons-grid { grid-template-columns: 1fr; }
}

/* ==================== Responsive ==================== */
@media (max-width: 1024px) {
  .site-header, .hero, .hero-compact, .stats-bar, .pain-points, .quote-section, .core-advantages, .cta-section, .site-footer { padding-left: 48px; padding-right: 48px; }
  .hero h1 { font-size: 46px; }
  .hero-subtitle { font-size: 16px; }
  .quote-text { font-size: 24px; }
  .cards-grid, .article-grid, .values-grid { grid-template-columns: repeat(2, 1fr); }
  .pricing-cards--four { grid-template-columns: repeat(2, 1fr); }
  .module { flex-direction: column; }
  .module:nth-child(odd) .module-visual, .module:nth-child(odd) .module-content,
  .module:nth-child(even) .module-content, .module:nth-child(even) .module-visual { order: unset; }
  .contact-form { grid-template-columns: 1fr; }
  .comparison-table-wrapper { margin: 0 -24px; padding: 0 24px; }
  /* 平板：缩窄 footer 间距 */
  .footer-brand { max-width: 320px; }
  .footer-links { gap: 40px; }
}
@media (max-width: 768px) {
  .site-header { padding: 0 24px; }
  /* 移动端：显示汉堡，隐藏页签和按钮 */
  .nav-toggle { display: flex; }
  .site-nav, .btn-header { display: none; }
  /* 汉堡下拉菜单 */
  .site-nav.open {
    display: flex; flex-direction: column;
    position: absolute; top: var(--header-height); left: 0; right: 0;
    padding: 24px; gap: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    animation: fadeInUp 0.25s ease-out;
  }
  .site-header:not(.scrolled) .site-nav.open {
    background: rgba(0, 34, 68, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }
  .site-header:not(.scrolled) .site-nav.open a { color: rgba(255, 255, 255, 0.85); }
  .site-header:not(.scrolled) .site-nav.open a:hover { color: var(--color-green); }
  .site-header:not(.scrolled) .site-nav.open a.active { color: var(--color-green); }
  .site-header.scrolled .site-nav.open {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
  }
  .site-header.scrolled .site-nav.open a { color: var(--color-text-gray); }
  .site-header.scrolled .site-nav.open a:hover { color: var(--color-navy); }
  .site-header.scrolled .site-nav.open a.active { color: var(--color-navy); }
  .hero, .hero-compact, .stats-bar, .pain-points, .quote-section, .core-advantages, .cta-section, .site-footer { padding-left: 24px; padding-right: 24px; }
  .hero h1 { font-size: 36px; }
  .hero-subtitle { font-size: 14px; }
  .quote-text { font-size: 20px; line-height: 1.7; }
  .quote-section { padding-top: 56px; padding-bottom: 56px; }
  .stats-bar { flex-direction: column; gap: 32px; }
  .cards-grid, .article-grid, .values-grid, .pricing-cards, .pricing-cards--four, .comparison { grid-template-columns: 1fr; }
  .pricing-card.diamond { transform: none; }
  .story-row { flex-direction: column; }
  /* Footer 保持横向排版：缩窄 brand + 缩小列间距，列超出时自动换行 */
  .footer-top { flex-wrap: wrap; gap: 32px 24px; }
  .footer-brand { max-width: 100%; flex: 0 0 auto; }
  .footer-brand p { font-size: 13px; }
  .footer-links { gap: 28px; flex-wrap: wrap; }
  .footer-col { min-width: 88px; }
  .footer-col a { font-size: 13px; margin-bottom: 6px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; gap: 10px; }
  .footer-filing { gap: 12px; }
  .hero-cta { flex-direction: column; align-items: center; }
}