:root {
  --color-night: #0B1220;
  --color-deep: #101827;
  --color-gold: #F5B544;
  --color-purple: #8B5CF6;
  --color-orange: #FF6B35;
  --color-near-white: #F8FAFC;
  --color-muted: #94A3B8;
  --color-line: #1E293B;
  --gradient-gold: linear-gradient(135deg, #F5B544 0%, #FF6B35 100%);
  --font-heading: "Montserrat", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  --font-mono: "Roboto Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --header-height: 72px;
  --container-width: 1280px;
  --container-pad: clamp(20px, 4vw, 48px);
  --radius-md: 14px;
  --radius-lg: 24px;
  --shadow-glow: 0 0 30px rgba(245, 181, 68, 0.20), 0 0 60px rgba(139, 92, 246, 0.08);
  --shadow-card: 0 10px 40px rgba(0, 0, 0, 0.45);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}
*, *::before, *::after { box-sizing: border-box; }
html, body, h1, h2, h3, h4, p, ul, ol, figure, blockquote, dl, dd { margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { background-color: var(--color-night); color: var(--color-near-white); font-family: var(--font-body); font-size: 16px; line-height: 1.6; min-height: 100vh; }
body::before { content: ""; position: fixed; inset: 0; pointer-events: none; background: radial-gradient(ellipse at 20% 0%, rgba(139, 92, 246, 0.08) 0%, transparent 60%), radial-gradient(ellipse at 80% 100%, rgba(245, 181, 68, 0.05) 0%, transparent 50%); z-index: 0; }
.site-header-wrap, .site-footer, #main-content { position: relative; z-index: 1; }
img, svg, video, canvas { max-width: 100%; height: auto; display: block; }
a { color: var(--color-gold); text-decoration: none; transition: color 0.25s var(--ease-out), border-color 0.25s var(--ease-out), background-color 0.25s var(--ease-out); }
a:hover { color: var(--color-near-white); }
button { font-family: inherit; cursor: pointer; }
:focus-visible { outline: 3px solid var(--color-gold); outline-offset: 3px; border-radius: 4px; }
.container { max-width: var(--container-width); margin-inline: auto; padding-inline: var(--container-pad); }
.skip-link { position: fixed; top: 12px; left: 12px; background: var(--color-gold); color: var(--color-night); font-weight: 700; padding: 12px 20px; border-radius: 999px; z-index: 9999; transform: translateY(-150%); transition: transform 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out); box-shadow: 0 8px 30px rgba(245, 181, 68, 0.3); }
.skip-link:focus-visible { transform: translateY(0); }
.site-header-wrap { position: sticky; top: 0; z-index: 100; background: rgba(11, 18, 32, 0.82); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); border-bottom: 1px solid var(--color-line); }
.site-header { min-height: var(--header-height); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: var(--header-height); position: relative; }
.brand-lockup { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; color: var(--color-near-white); position: relative; z-index: 2; }
.brand-lockup:hover { color: var(--color-near-white); }
.site-brand { font-family: var(--font-heading); font-size: 26px; font-weight: 900; letter-spacing: 0.02em; background: var(--gradient-gold); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; text-shadow: 0 0 30px rgba(245, 181, 68, 0.2); }
.brand-alias { font-family: var(--font-heading); font-size: 14px; font-weight: 600; color: var(--color-muted); letter-spacing: 0.2em; }
.version-badge { display: inline-block; background: rgba(139, 92, 246, 0.15); border: 1px solid rgba(139, 92, 246, 0.4); color: #C4B5FD; font-size: 12px; font-weight: 700; letter-spacing: 0.08em; padding: 2px 10px; border-radius: 999px; }
.brand-tagline { font-family: var(--font-mono); font-size: 12px; color: var(--color-gold); letter-spacing: 0.1em; text-transform: uppercase; display: none; }
.header-meta { display: none; align-items: center; gap: 18px; margin-left: auto; }
.status-chip { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-mono); font-size: 12px; color: var(--color-muted); padding: 6px 14px; border: 1px solid var(--color-line); border-radius: 999px; }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--color-gold); box-shadow: 0 0 12px rgba(245, 181, 68, 0.8); animation: status-pulse 2s infinite; }
@keyframes status-pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }
.dataset-index { font-family: var(--font-mono); font-size: 12px; color: var(--color-purple); letter-spacing: 0.08em; }
.nav-toggle { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 5px; width: 52px; height: 48px; background: transparent; border: 1px solid var(--color-line); border-radius: 12px; transition: border-color 0.25s var(--ease-out), background-color 0.25s var(--ease-out), box-shadow 0.25s var(--ease-out); position: relative; z-index: 2; color: var(--color-near-white); }
.nav-toggle__bar { width: 24px; height: 2px; background: var(--color-near-white); transition: transform 0.3s var(--ease-out), opacity 0.3s var(--ease-out); }
.nav-toggle__text { font-size: 10px; text-transform: uppercase; letter-spacing: 0.12em; color: var(--color-muted); line-height: 1; }
.nav-toggle:hover { border-color: var(--color-gold); box-shadow: 0 0 20px rgba(245, 181, 68, 0.2); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) { opacity: 0; }
.header-nav { position: fixed; inset: 0; background: rgba(11, 18, 32, 0.98); backdrop-filter: blur(8px); display: flex; align-items: center; justify-content: center; padding: 24px; opacity: 0; visibility: hidden; transition: opacity 0.4s var(--ease-out), visibility 0.4s; z-index: 1; }
.header-nav[data-open] { opacity: 1; visibility: visible; }
.nav-list { list-style: none; display: flex; flex-direction: column; align-items: center; gap: 16px; padding: 0; }
.nav-link { font-family: var(--font-heading); font-size: clamp(24px, 6vw, 44px); font-weight: 800; color: var(--color-near-white); letter-spacing: 0.06em; padding: 8px 12px; position: relative; transition: color 0.3s var(--ease-out), letter-spacing 0.3s var(--ease-out); }
.nav-link::before { content: attr(data-index, ""); font-family: var(--font-mono); font-size: 14px; color: var(--color-purple); vertical-align: super; margin-right: 8px; opacity: 0; transition: opacity 0.3s; }
.nav-link:hover { color: var(--color-gold); letter-spacing: 0.1em; }
.nav-link:active { color: var(--color-orange); }
.nav-link[aria-current="page"] { color: var(--color-gold); text-shadow: 0 0 30px rgba(245, 181, 68, 0.3); }
.nav-link[aria-current="page"]::after { content: ""; position: absolute; left: 12px; right: 12px; bottom: 0; height: 3px; background: var(--gradient-gold); border-radius: 999px; }
.site-footer { background: var(--color-deep); border-top: 1px solid var(--color-line); padding: clamp(48px, 7vw, 88px) 0 0; position: relative; overflow: hidden; }
.site-footer::before { content: ""; position: absolute; top: 0; right: -40px; width: 300px; height: 300px; background: radial-gradient(circle, rgba(139, 92, 246, 0.12) 0%, transparent 70%); pointer-events: none; }
.footer-brand { display: flex; flex-direction: column; gap: 20px; max-width: 560px; margin-bottom: 40px; }
.footer-brand__logo { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.footer-brand__name { font-family: var(--font-heading); font-size: 28px; font-weight: 900; background: var(--gradient-gold); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.footer-brand__alias { font-family: var(--font-heading); font-size: 14px; font-weight: 600; color: var(--color-muted); letter-spacing: 0.18em; }
.footer-about { font-size: 15px; color: var(--color-muted); line-height: 1.7; max-width: 480px; }
.site-map-grid { display: grid; grid-template-columns: 1fr; gap: 32px; padding-bottom: 48px; }
.map-column { display: flex; flex-direction: column; gap: 16px; }
.map-column__title { font-family: var(--font-heading); font-size: 14px; text-transform: uppercase; letter-spacing: 0.18em; color: var(--color-gold); border-bottom: 1px solid var(--color-line); padding-bottom: 12px; margin-bottom: 4px; position: relative; }
.map-column__title::after { content: ""; position: absolute; left: 0; bottom: -1px; width: 40px; height: 2px; background: var(--gradient-gold); }
.map-column__list { list-style: none; display: flex; flex-direction: column; gap: 12px; padding: 0; }
.map-link { color: var(--color-muted); font-size: 15px; transition: color 0.25s, transform 0.25s var(--ease-out), padding-left 0.25s var(--ease-out); display: inline-block; }
.map-link:hover { color: var(--color-gold); padding-left: 6px; }
.contact-list { list-style: none; display: flex; flex-direction: column; gap: 8px; padding: 0; font-size: 14px; color: var(--color-muted); }
.trust-statement { background: linear-gradient(135deg, rgba(245, 181, 68, 0.08), rgba(139, 92, 246, 0.05)); border: 1px solid var(--color-line); border-left: 3px solid var(--color-gold); border-radius: 12px; padding: 24px 28px; margin: 16px 0 40px; display: flex; flex-direction: column; gap: 12px; position: relative; }
.trust-statement::before { content: "01"; position: absolute; right: 16px; top: 12px; font-family: var(--font-mono); font-size: 48px; color: rgba(245, 181, 68, 0.15); font-weight: 700; }
.trust-statement__mark { font-family: var(--font-mono); font-size: 13px; font-weight: 700; color: var(--color-gold); letter-spacing: 0.08em; }
.trust-statement p { font-size: 14px; color: var(--color-muted); line-height: 1.7; max-width: 720px; }
.footer-bottom { border-top: 1px solid var(--color-line); padding: 24px 0 32px; display: flex; flex-direction: column; gap: 16px; align-items: flex-start; }
.footer-copyright { font-size: 14px; color: var(--color-muted); }
.footer-icp { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; font-size: 13px; color: var(--color-muted); }
.footer-icp a { color: var(--color-muted); }
.footer-icp a:hover { color: var(--color-gold); }
.img-stage { background: var(--color-deep); border: 1px solid var(--color-line); border-radius: var(--radius-lg); overflow: hidden; position: relative; display: flex; align-items: center; justify-content: center; }
.img-stage::after { content: ""; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(139, 92, 246, 0.1), transparent 40%, rgba(245, 181, 68, 0.08)); pointer-events: none; }
.img-stage--ratio-16x9 { aspect-ratio: 16 / 9; }
.img-stage--ratio-4x3 { aspect-ratio: 4 / 3; }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 8px; padding: 20px 0; color: var(--color-muted); font-size: 14px; }
.breadcrumb a { color: var(--color-muted); text-decoration: none; }
.breadcrumb a:hover { color: var(--color-gold); }
.breadcrumb span[aria-current="page"] { color: var(--color-gold); }
.cta-group { display: flex; flex-wrap: wrap; gap: 16px; padding: 16px 0; }
.btn-primary { display: inline-block; background: var(--gradient-gold); color: var(--color-night); font-family: var(--font-heading); font-weight: 800; font-size: 16px; padding: 14px 32px; border: 0; border-radius: 999px; box-shadow: 0 8px 30px rgba(245, 181, 68, 0.25); transition: transform 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out), filter 0.3s; cursor: pointer; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 40px rgba(245, 181, 68, 0.4); color: var(--color-night); filter: brightness(1.1); }
.btn-ghost { display: inline-block; background: transparent; color: var(--color-gold); font-family: var(--font-heading); font-weight: 700; font-size: 16px; padding: 13px 30px; border: 1px solid rgba(245, 181, 68, 0.5); border-radius: 999px; transition: border-color 0.3s, background-color 0.3s, color 0.3s, box-shadow 0.3s; cursor: pointer; }
.btn-ghost:hover { background: rgba(245, 181, 68, 0.1); color: var(--color-gold); border-color: var(--color-gold); box-shadow: 0 0 30px rgba(245, 181, 68, 0.15); }
.card { background: var(--color-deep); border: 1px solid var(--color-line); border-radius: var(--radius-md); padding: clamp(20px, 3vw, 32px); transition: border-color 0.3s, box-shadow 0.3s; }
.card:hover { border-color: rgba(245, 181, 68, 0.3); box-shadow: 0 0 40px rgba(245, 181, 68, 0.05); }
.card-glow { background: linear-gradient(145deg, rgba(245, 181, 68, 0.08) 0%, rgba(139, 92, 246, 0.04) 100%); border-color: rgba(245, 181, 68, 0.3); box-shadow: var(--shadow-glow); }
.section-heading { font-family: var(--font-heading); font-size: clamp(32px, 5vw, 56px); font-weight: 900; line-height: 1.1; letter-spacing: -0.01em; background: linear-gradient(135deg, var(--color-near-white) 30%, var(--color-gold) 100%); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.section-index { font-family: var(--font-mono); display: block; font-size: 14px; font-weight: 500; color: var(--color-gold); letter-spacing: 0.25em; margin-bottom: 16px; text-transform: uppercase; }
.section-subtitle { font-size: 18px; color: var(--color-muted); max-width: 60ch; margin-top: 12px; line-height: 1.5; }
.tag { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 600; padding: 4px 12px; border-radius: 999px; background: rgba(139, 92, 246, 0.15); color: #C4B5FD; border: 1px solid rgba(139, 92, 246, 0.4); }
.tag-live { background: rgba(245, 181, 68, 0.15); color: var(--color-gold); border-color: rgba(245, 181, 68, 0.4); box-shadow: 0 0 20px rgba(245, 181, 68, 0.1); }
.tag-update { background: rgba(255, 107, 53, 0.15); color: var(--color-orange); border-color: rgba(255, 107, 53, 0.4); }
.grid { display: grid; gap: clamp(20px, 3vw, 32px); }
.grid-2 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.section-nav { display: flex; flex-direction: column; gap: 8px; padding: 16px 0; }
.section-progress { position: fixed; top: 0; left: 0; height: 3px; background: var(--gradient-gold); z-index: 200; width: 0; transition: width 0.2s ease; }
.back-to-top { position: fixed; right: 24px; bottom: 32px; width: 52px; height: 52px; border-radius: 16px; border: 1px solid var(--color-line); background: rgba(11, 18, 32, 0.8); backdrop-filter: blur(8px); color: var(--color-gold); font-size: 22px; display: flex; align-items: center; justify-content: center; opacity: 0; visibility: hidden; transform: translateY(20px); transition: opacity 0.3s, transform 0.3s, visibility 0.3s, border-color 0.3s; box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3); z-index: 150; cursor: pointer; }
.back-to-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { border-color: var(--color-gold); box-shadow: 0 0 30px rgba(245, 181, 68, 0.2); }
.back-to-top::before { content: "↑"; font-family: var(--font-mono); }
.data-chip { display: inline-block; font-family: var(--font-mono); font-size: 13px; background: rgba(16, 24, 39, 0.8); border: 1px solid var(--color-line); padding: 4px 12px; border-radius: 999px; color: var(--color-muted); }
[data-reveal] { opacity: 0; transform: translateY(24px); transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out); }
[data-reveal].is-visible, [data-visible].is-visible { opacity: 1; transform: none; }
[data-scroll-progress] { transform-origin: left; }
@media (min-width: 640px) {
  .footer-icp { flex-direction: row; }
  .grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 768px) {
  .brand-tagline { display: inline-block; }
  .nav-toggle__bar { width: 28px; }
  .trust-statement { flex-direction: row; align-items: center; }
  .footer-bottom { flex-direction: row; justify-content: space-between; }
}
@media (min-width: 1024px) {
  .header-meta { display: flex; }
  .nav-toggle { display: none; }
  .header-nav { position: static; inset: auto; padding: 0; background: transparent; opacity: 1; visibility: visible; display: block; transition: none; z-index: auto; }
  .nav-list { flex-direction: row; gap: 4px; }
  .nav-link { font-size: 16px; font-weight: 500; padding: 8px 16px; letter-spacing: 0em; }
  .nav-link::before { content: ""; }
  .nav-link:hover { letter-spacing: 0.02em; }
  .nav-link[aria-current="page"]::before { content: ""; }
  .site-map-grid { grid-template-columns: repeat(4, 1fr); gap: 40px; }
  .map-column--wide { grid-column: span 1; }
  .grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (min-width: 1280px) {
  .header-inner { gap: 24px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
  [data-reveal] { opacity: 1; transform: none; }
  .status-dot { animation: none; }
  .back-to-top { transition: none; }
}
[hidden] { display: none !important; }
@media print {
  .site-header, .site-footer, .section-progress, .back-to-top, .skip-link { display: none !important; }
}