:root {
  --color-bg: #081428;
  --color-bg-soft: #0b1f3b;
  --color-surface: rgba(13, 33, 63, 0.88);
  --color-border: rgba(212, 175, 55, 0.24);
  --color-text: #f5f7fa;
  --color-text-muted: rgba(245, 247, 250, 0.72);
  --color-accent: #d4af37;
  --color-accent-soft: rgba(212, 175, 55, 0.14);
  --shadow-lg: 0 24px 60px rgba(0, 0, 0, 0.28);
  --shadow-md: 0 14px 36px rgba(0, 0, 0, 0.22);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --container: min(1240px, calc(100vw - 32px));
  --font-sans: "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  --font-math: "Times New Roman", Georgia, serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  line-height: 1.6;
  font-family: var(--font-sans);
  color: var(--color-text);
  background: radial-gradient(circle at top right, rgba(212, 175, 55, 0.12), transparent 28%), linear-gradient(180deg, #071121 0%, #09182d 50%, #08101f 100%);
}
body.high-contrast {
  --color-bg: #000;
  --color-bg-soft: #07152a;
  --color-surface: #07152a;
  --color-border: rgba(255, 214, 10, 0.7);
  --color-text: #fff;
  --color-text-muted: rgba(255, 255, 255, 0.9);
  --color-accent: #ffd60a;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { font: inherit; }
:focus-visible { outline: 3px solid rgba(212, 175, 55, 0.42); outline-offset: 3px; }
.container { width: var(--container); margin: 0 auto; }
.skip-link { position: absolute; left: 16px; top: -56px; z-index: 1000; background: var(--color-accent); color: #111; padding: 12px 16px; border-radius: 10px; }
.skip-link:focus { top: 16px; }
.announcement-bar { padding: 10px 16px; text-align: center; font-size: 0.9rem; color: var(--color-text-muted); background: rgba(5, 13, 28, 0.88); border-bottom: 1px solid rgba(255,255,255,0.06); }
.site-header { position: sticky; top: 0; z-index: 100; backdrop-filter: blur(16px); background: linear-gradient(180deg, rgba(6,15,30,0.18), rgba(6,15,30,0.7)); border-bottom: 1px solid transparent; transition: 220ms ease; }
.site-header.is-scrolled { background: rgba(8,20,40,0.96); border-color: rgba(212,175,55,0.18); }
.nav-shell { min-height: 88px; display: grid; grid-template-columns: auto 1fr auto; gap: 24px; align-items: center; }
.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand img { width: 46px; height: 46px; border-radius: 14px; box-shadow: 0 0 0 1px rgba(212,175,55,0.16); }
.brand-copy { display: grid; gap: 2px; }
.brand-copy span { color: var(--color-text-muted); font-size: 0.88rem; }
.site-nav ul { display: flex; justify-content: center; gap: 20px; list-style: none; margin: 0; padding: 0; }
.site-nav a { color: var(--color-text-muted); }
.site-nav a:hover, .site-nav a:focus-visible, .site-nav a.is-active { color: var(--color-text); }
.nav-toggle { display: none; }
.header-actions, .hero-actions, .hero-card-tags, .hero-metrics, .meta-row, .tag-row, .resource-actions, .contact-links, .achievement-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.button, .button-outline, .contrast-toggle, .copy-button {
  min-height: 44px; padding: 0 18px; border-radius: 999px; border: 1px solid rgba(212,175,55,0.28); display: inline-flex; align-items: center; justify-content: center; cursor: pointer; transition: 220ms ease;
}
.button, .contrast-toggle { background: linear-gradient(135deg, #d4af37, #f2d675); color: #111; font-weight: 700; }
.button-outline, .copy-button { background: transparent; color: var(--color-text); }
.button:hover, .button-outline:hover, .contrast-toggle:hover, .copy-button:hover { transform: translateY(-1px); }
.hero { position: relative; overflow: clip; min-height: calc(100vh - 42px); display: flex; align-items: center; }
#hero-canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.2fr 0.88fr; gap: 40px; align-items: center; padding: 72px 0; }
.eyebrow { color: var(--color-accent); letter-spacing: 0.12em; text-transform: uppercase; font-size: 0.86rem; margin: 0 0 10px; }
.hero h1, .section h2 { margin: 0; line-height: 1.12; font-weight: 800; }
.hero h1 { font-size: clamp(2.4rem, 5vw, 5rem); max-width: 11ch; }
.hero-lead, .section-heading p, .section-intro, .footer-grid p, .contact-panel p, .card p, .resource-item p, .timeline p { color: var(--color-text-muted); }
.hero-lead { max-width: 64ch; margin: 18px 0 28px; font-size: 1.04rem; }
.hero-metrics { list-style: none; margin: 28px 0 0; padding: 0; }
.hero-metrics li, .info-panel, .card, .resource-item, .timeline li, .profile-panel, .contact-panel, .map-shell, .hero-card { background: var(--color-surface); border: 1px solid var(--color-border); box-shadow: var(--shadow-md); }
.hero-metrics li { min-width: 150px; padding: 14px 16px; border-radius: var(--radius-md); }
.metric-value { display: block; font-size: 1.34rem; font-weight: 800; }
.metric-label { color: var(--color-text-muted); font-size: 0.92rem; }
.hero-card { border-radius: var(--radius-xl); overflow: hidden; }
.hero-card img { width: 100%; aspect-ratio: 7 / 8; object-fit: cover; }
.hero-card-body { padding: 22px; }
.director-name { margin: 0; font-size: 1.5rem; font-weight: 800; }
.director-title { margin: 10px 0 0; color: var(--color-text-muted); }
.hero-card-tags span, .pillars span, .tag-row span, .meta-row span { display: inline-flex; align-items: center; min-height: 34px; padding: 0 12px; border-radius: 999px; background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08); color: var(--color-text-muted); font-size: 0.9rem; }
.section { padding: 88px 0; content-visibility: auto; contain-intrinsic-size: 1px 960px; }
.section-surface { background: linear-gradient(180deg, rgba(255,255,255,0.015), rgba(255,255,255,0.03)); }
.split-layout, .contact-grid, .footer-grid, .director-layout { display: grid; gap: 28px; }
.split-layout, .contact-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.footer-grid { grid-template-columns: 1.2fr 1fr 1fr; }
.section-heading { display: flex; justify-content: space-between; align-items: end; gap: 24px; margin-bottom: 30px; }
.section-heading p { max-width: 52ch; margin: 0; }
.info-panel, .profile-panel, .contact-panel, .map-shell { border-radius: var(--radius-xl); padding: 24px; }
.pillars { display: grid; gap: 14px; margin-top: 18px; }
.card-grid, .achievement-grid, .honor-grid { display: grid; gap: 20px; }
.card-grid, .honor-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.achievement-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card, .resource-item, .timeline li { border-radius: var(--radius-lg); padding: 22px; }
.card-header { display: flex; justify-content: space-between; gap: 16px; align-items: center; margin-bottom: 14px; }
.card-icon { width: 44px; height: 44px; display: inline-grid; place-items: center; border-radius: 14px; background: var(--color-accent-soft); }
.card-icon svg { width: 22px; height: 22px; fill: var(--color-accent); }
.card h3, .resource-item h3, .timeline h3, .profile-panel h3, .contact-panel h3, .info-panel h3 { margin: 0; }
.muted-label { color: var(--color-accent); font-size: 0.86rem; letter-spacing: 0.08em; text-transform: uppercase; }
.resource-list { display: grid; gap: 18px; }
.resource-item { display: grid; grid-template-columns: 1.1fr auto; gap: 16px; align-items: center; }
.timeline { list-style: none; padding: 0; margin: 0; position: relative; }
.timeline::before { content: ""; position: absolute; left: 11px; top: 0; bottom: 0; width: 2px; background: linear-gradient(180deg, rgba(212,175,55,0.8), transparent); }
.timeline li { position: relative; margin-left: 34px; margin-bottom: 18px; }
.timeline li::before { content: ""; position: absolute; left: -29px; top: 24px; width: 12px; height: 12px; border-radius: 999px; background: var(--color-accent); box-shadow: 0 0 0 6px rgba(212,175,55,0.16); }
.timeline time { display: inline-block; color: var(--color-accent); font-weight: 700; margin-bottom: 8px; }
.director-layout { grid-template-columns: 1.05fr 0.95fr; }
.honor-card { overflow: hidden; border-radius: var(--radius-lg); background: var(--color-surface); border: 1px solid var(--color-border); }
.honor-card img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.honor-card div { padding: 16px; }
.map-container { width: 100%; min-height: 420px; border-radius: 18px; overflow: hidden; background: linear-gradient(135deg, rgba(212,175,55,0.08), rgba(11,31,59,0.2)), radial-gradient(circle at top left, rgba(212,175,55,0.15), transparent 35%), #0b1f3b; display: grid; place-items: center; text-align: center; padding: 24px; }
.contact-panel { display: grid; gap: 18px; }
.contact-media { display: flex; gap: 16px; align-items: center; }
.contact-media img { width: 110px; border-radius: 12px; border: 1px solid var(--color-border); }
.site-footer { border-top: 1px solid rgba(212,175,55,0.12); background: rgba(5,12,24,0.92); padding: 26px 0 40px; }
.sr-live { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }

.case-card { overflow: hidden; transition: 220ms ease; }
.case-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.case-image { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; background: linear-gradient(135deg, rgba(212,175,55,0.12), rgba(11,31,59,0.4)); display: grid; place-items: center; border-radius: var(--radius-md); margin-bottom: 16px; }
.case-results { list-style: none; padding: 0; margin: 16px 0 0; display: grid; gap: 8px; }
.case-results li { display: flex; align-items: center; gap: 8px; color: var(--color-text-muted); }
.case-results li::before { content: "✓"; color: var(--color-accent); font-weight: bold; }

.partners-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.partner-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 28px; text-align: center; display: grid; place-items: center; gap: 12px; transition: 220ms ease; }
.partner-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: rgba(212,175,55,0.4); }
.partner-logo { width: 90px; height: 90px; border-radius: 20px; background: linear-gradient(135deg, rgba(212,175,55,0.15), rgba(11,31,59,0.3)); display: grid; place-items: center; font-size: 1.8rem; font-weight: 800; color: var(--color-accent); }
.partner-name { font-weight: 700; font-size: 1.05rem; }
.partner-location { color: var(--color-text-muted); font-size: 0.9rem; }

.pricing-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.pricing-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-xl); padding: 28px; display: flex; flex-direction: column; transition: 220ms ease; }
.pricing-card.featured { transform: scale(1.05); border-color: var(--color-accent); box-shadow: 0 0 0 2px rgba(212,175,55,0.3), var(--shadow-lg); position: relative; }
.pricing-card.featured::before { content: "推荐"; position: absolute; top: -12px; left: 50%; transform: translateX(-50%); background: var(--color-accent); color: #111; padding: 4px 16px; border-radius: 999px; font-weight: 800; font-size: 0.85rem; }
.pricing-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.pricing-card.featured:hover { transform: scale(1.05) translateY(-4px); }
.pricing-name { font-size: 1.4rem; font-weight: 800; margin: 0 0 8px; }
.pricing-price { font-size: 2.5rem; font-weight: 800; color: var(--color-accent); margin: 0 0 12px; }
.pricing-description { color: var(--color-text-muted); margin: 0 0 20px; }
.pricing-features { list-style: none; padding: 0; margin: 0 0 auto; display: grid; gap: 10px; }
.pricing-features li { display: flex; align-items: center; gap: 10px; color: var(--color-text-muted); }
.pricing-features li::before { content: "✓"; color: var(--color-accent); font-weight: bold; flex-shrink: 0; }
.pricing-cta { margin-top: 24px; }
.pricing-cta .button { width: 100%; }

.modal-overlay { position: fixed; inset: 0; z-index: 1000; background: rgba(0, 0, 0, 0.75); backdrop-filter: blur(8px); display: none; place-items: center; padding: 24px; }
.modal-overlay.is-open { display: grid; }
.modal-content { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-xl); padding: 32px; max-width: 560px; width: 100%; position: relative; box-shadow: var(--shadow-lg); max-height: 90vh; overflow-y: auto; }
.modal-close { position: absolute; top: 16px; right: 16px; width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--color-border); background: transparent; color: var(--color-text); font-size: 1.5rem; cursor: pointer; transition: 220ms ease; display: grid; place-items: center; }
.modal-close:hover { background: rgba(212,175,55,0.1); border-color: var(--color-accent); }
.modal-content h2 { margin: 0 0 12px; font-size: 1.8rem; }
.modal-description { color: var(--color-text-muted); margin: 0 0 24px; }
.trial-form { display: grid; gap: 16px; }
.form-group { display: grid; gap: 6px; }
.form-group label { font-weight: 600; color: var(--color-text); }
.form-group input, .form-group select, .form-group textarea { min-height: 44px; padding: 10px 14px; border-radius: 12px; border: 1px solid var(--color-border); background: rgba(11, 31, 59, 0.6); color: var(--color-text); font: inherit; transition: 220ms ease; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--color-accent); box-shadow: 0 0 0 3px rgba(212,175,55,0.2); }
.form-group textarea { resize: vertical; min-height: 88px; }
.form-actions { display: flex; gap: 12px; margin-top: 8px; }
.form-actions .button { flex: 1; }
@media (max-width: 1439px) { 
  .card-grid, .honor-grid, .partners-grid, .pricing-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } 
  .pricing-card.featured { transform: none; }
  .pricing-card.featured:hover { transform: translateY(-4px); }
}
@media (max-width: 1023px) {
  .hero-grid, .split-layout, .contact-grid, .footer-grid, .director-layout, .achievement-grid, .resource-item, .section-heading, .partners-grid, .pricing-grid { grid-template-columns: 1fr; }
  .section-heading { align-items: start; }
  .site-nav ul { position: absolute; right: 16px; top: calc(100% + 12px); width: min(92vw, 360px); padding: 16px; border-radius: 18px; background: rgba(8,20,40,0.98); border: 1px solid rgba(212,175,55,0.2); box-shadow: var(--shadow-lg); display: none; flex-direction: column; max-height: 70vh; overflow-y: auto; }
  .site-nav ul.is-open { display: flex; }
  .nav-toggle { display: inline-flex; min-height: 42px; padding: 0 14px; border-radius: 999px; border: 1px solid rgba(212,175,55,0.28); background: transparent; color: var(--color-text); }
  .site-nav { justify-self: end; }
  .header-actions { display: none; }
  .hero { min-height: auto; }
  .modal-content { padding: 24px; }
  .form-actions { flex-direction: column; }
}
@media (max-width: 767px) {
  :root { --container: min(100vw - 24px, 1000px); }
  .section { padding: 72px 0; }
  .card-grid, .honor-grid, .achievement-grid, .partners-grid, .pricing-grid { grid-template-columns: 1fr; }
  .hero-actions, .resource-actions, .achievement-actions, .contact-links { flex-direction: column; }
  .button, .button-outline, .contrast-toggle, .copy-button { width: 100%; }
  .pricing-card { padding: 20px; }
}
.contact-panel-simple { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-xl); padding: 32px; display: grid; gap: 24px; max-width: 600px; margin: 0 auto; }
.contact-panel-simple h3 { margin: 0; font-size: 1.3rem; }
.contact-panel-simple p { margin: 8px 0 0; color: var(--color-text-muted); }

@media (min-width: 1440px) { :root { --container: min(1320px, calc(100vw - 72px)); } }
@media (min-width: 1920px) { :root { --container: min(1440px, calc(100vw - 120px)); } body { font-size: 18px; } }