:root {
    --ink: #261a12;
    --ink-soft: #4a3423;
    --paper: #f3e6c8;
    --paper-deep: #e3c99c;
    --gold: #b78838;
    --red: #8f2f24;
    --brown: #3a2417;
    --shadow: rgba(38, 26, 18, .18);
    --line: rgba(58, 36, 23, .18);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: "Noto Serif SC", "Songti SC", "SimSun", serif;
    color: var(--ink);
    background:
        radial-gradient(circle at top left, rgba(183,136,56,.18), transparent 28rem),
        linear-gradient(135deg, #2a1b12 0, #4b2d1c 22rem, #f0dfbd 22rem, #f7edda 100%);
    min-height: 100vh;
}
a { color: inherit; }
img { max-width: 100%; height: auto; display: block; }
.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(38, 26, 18, .94);
    color: var(--paper);
    box-shadow: 0 12px 32px rgba(0,0,0,.25);
}
.topbar {
    max-width: 1180px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: .85rem 1.25rem;
}
.brand { display: inline-flex; align-items: center; gap: .7rem; text-decoration: none; font-weight: 900; letter-spacing: .08em; }
.brand-mark {
    width: 42px; height: 42px; display: grid; place-items: center;
    background: linear-gradient(145deg, var(--gold), #d7b86c);
    color: var(--brown); border: 2px solid rgba(255,255,255,.28);
    box-shadow: inset 0 0 0 3px rgba(58,36,23,.16);
}
.brand-text { font-size: 1.35rem; }
.menu-toggle { display: none; border: 1px solid rgba(243,230,200,.45); background: transparent; color: var(--paper); padding: .45rem .7rem; font-size: 1.2rem; }
.main-nav {
    max-width: 1180px;
    margin: 0 auto;
    display: flex;
    gap: .35rem;
    padding: 0 1.25rem .85rem;
    flex-wrap: wrap;
}
.main-nav a {
    text-decoration: none;
    padding: .55rem .85rem;
    border: 1px solid transparent;
    color: rgba(243,230,200,.88);
    border-radius: 999px;
    font-size: .96rem;
}
.main-nav a:hover, .main-nav a.active { border-color: rgba(183,136,56,.7); color: #fff5d8; background: rgba(183,136,56,.12); }
main { max-width: 1180px; margin: 0 auto; padding: 1.25rem; }
.hero, .page-hero, .section {
    background: rgba(247,237,218,.94);
    border: 1px solid rgba(58,36,23,.18);
    box-shadow: 0 18px 60px var(--shadow);
}
.hero {
    display: grid;
    grid-template-columns: minmax(0, 1.08fr) minmax(320px, .92fr);
    gap: 2rem;
    align-items: center;
    padding: clamp(2rem, 5vw, 4rem);
    border-radius: 30px;
    overflow: hidden;
    position: relative;
}
.hero::before, .page-hero::before, .section::before {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    background-image: linear-gradient(rgba(58,36,23,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(58,36,23,.035) 1px, transparent 1px);
    background-size: 26px 26px;
    mask-image: linear-gradient(#000, transparent 75%);
}
.hero-copy, .hero-art, .section > *, .page-hero > * { position: relative; }
.eyebrow { margin: 0 0 .75rem; color: var(--red); font-weight: 800; letter-spacing: .12em; font-size: .92rem; }
h1, h2, h3 { line-height: 1.18; margin: 0; }
h1 { font-size: clamp(2.35rem, 5vw, 4.75rem); letter-spacing: .03em; }
h2 { font-size: clamp(1.45rem, 3vw, 2.3rem); }
h3 { font-size: 1.2rem; }
p { line-height: 1.85; }
.lead { font-size: 1.08rem; color: var(--ink-soft); }
.hero-actions { display: flex; gap: .9rem; flex-wrap: wrap; margin-top: 1.5rem; }
.btn, .text-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    border: 1px solid var(--brown);
    color: var(--brown);
    padding: .8rem 1.1rem;
    border-radius: 999px;
    font-weight: 800;
    background: rgba(255,255,255,.22);
}
.btn.primary { background: var(--brown); color: var(--paper); border-color: var(--brown); }
.btn:hover, .text-link:hover { transform: translateY(-1px); box-shadow: 0 8px 20px rgba(58,36,23,.16); }
.hero-art { background: rgba(58,36,23,.08); border: 1px solid var(--line); border-radius: 24px; padding: 1rem; }
.section { margin-top: 1.25rem; padding: clamp(1.5rem, 4vw, 3rem); border-radius: 24px; position: relative; overflow: hidden; }
.section-head { max-width: 760px; margin: 0 auto 1.6rem; text-align: center; }
.section-head.left { margin-left: 0; text-align: left; }
.card-grid { display: grid; gap: 1rem; }
.card-grid.four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.card-grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.feature-card, .story-card, .link-card, .person-card, .contact-card, .catalog-card, .article-card {
    background: linear-gradient(180deg, rgba(255,248,229,.82), rgba(226,201,156,.58));
    border: 1px solid var(--line);
    border-radius: 20px;
    padding: 1.2rem;
    box-shadow: 0 12px 28px rgba(58,36,23,.08);
}
.feature-card img { margin-bottom: 1rem; }
.feature-card p, .story-card p, .link-card p, .person-card p, .contact-card p { color: var(--ink-soft); }
.story-card { padding: 0; overflow: hidden; }
.story-card div { padding: 1.1rem; }
.split-section { display: grid; grid-template-columns: 1fr .9fr; gap: 2rem; align-items: center; }
.split-section.reverse { grid-template-columns: .9fr 1fr; }
.panel-img { border-radius: 20px; border: 1px solid var(--line); background: rgba(255,255,255,.2); padding: .5rem; }
.timeline-list { list-style: none; padding: 0; margin: 1rem 0; }
.timeline-list li { padding: .7rem 0 .7rem 1rem; border-left: 3px solid var(--gold); }
.timeline-list span { display: inline-block; min-width: 4rem; font-weight: 900; color: var(--red); }
.archive-table-wrap { overflow-x: auto; }
.archive-table { width: 100%; border-collapse: collapse; min-width: 720px; background: rgba(255,248,229,.7); }
.archive-table th, .archive-table td { padding: .9rem; border: 1px solid var(--line); text-align: left; }
.archive-table th { background: rgba(58,36,23,.12); color: var(--brown); }
.faq-list { display: grid; gap: .8rem; }
details { background: rgba(255,248,229,.72); border: 1px solid var(--line); border-radius: 18px; padding: 1rem 1.2rem; }
summary { cursor: pointer; font-weight: 900; }
.page-hero { position: relative; padding: clamp(2rem, 5vw, 3.5rem); border-radius: 28px; overflow: hidden; }
.small-hero h1 { max-width: 900px; font-size: clamp(2rem, 4vw, 3.2rem); }
.small-hero p { max-width: 860px; }
.process-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.process-list article { border-left: 4px solid var(--red); padding: 1rem; background: rgba(255,248,229,.7); border-radius: 16px; }
.process-list span { color: var(--gold); font-weight: 900; }
.note-panel { background: linear-gradient(135deg, rgba(58,36,23,.92), rgba(88,50,30,.88)); color: var(--paper); }
.note-panel p { color: rgba(243,230,200,.9); }
.link-card { display: block; text-decoration: none; min-height: 160px; }
.filter-controls { display: flex; flex-wrap: wrap; gap: .6rem; }
.filter-btn { border: 1px solid var(--line); background: rgba(255,248,229,.8); border-radius: 999px; padding: .7rem 1rem; color: var(--brown); cursor: pointer; font-weight: 800; }
.filter-btn.active { background: var(--brown); color: var(--paper); }
.archive-catalog { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
.catalog-card { display: grid; grid-template-columns: 150px 1fr; gap: 1rem; align-items: center; }
.catalog-card span, .article-card span, .person-card span { color: var(--red); font-weight: 900; }
.catalog-card a, .article-card a { font-weight: 900; color: var(--red); }
.vertical-timeline { display: grid; gap: 1rem; }
.vertical-timeline article { padding: 1.3rem; border-left: 5px solid var(--gold); background: rgba(255,248,229,.72); border-radius: 18px; }
.vertical-timeline span { display: inline-block; color: var(--red); font-weight: 900; margin-bottom: .4rem; }
.people-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.avatar-shape { width: 74px; height: 74px; display: grid; place-items: center; border-radius: 50%; background: var(--brown); color: var(--paper); font-size: 1.5rem; font-weight: 900; margin-bottom: 1rem; box-shadow: inset 0 0 0 5px rgba(183,136,56,.35); }
.article-list { display: grid; gap: 1rem; }
.article-card { display: grid; grid-template-columns: 220px 1fr; gap: 1.2rem; align-items: center; }
.video-layout { padding: 0; overflow: hidden; }
.video-feature { display: grid; grid-template-columns: 1fr .75fr; gap: 2rem; align-items: center; padding: clamp(1.5rem, 4vw, 3rem); }
.mock-player { min-height: 320px; border-radius: 24px; background: linear-gradient(135deg, #2a1b12, #6b3529); color: var(--paper); display: grid; place-items: center; text-align: center; position: relative; overflow: hidden; border: 8px solid rgba(183,136,56,.32); }
.mock-player::before { content: ""; position: absolute; inset: 18px; border: 1px dashed rgba(243,230,200,.45); border-radius: 18px; }
.play-dot { width: 82px; height: 82px; display: grid; place-items: center; border-radius: 50%; background: rgba(243,230,200,.18); border: 2px solid rgba(243,230,200,.7); font-size: 2rem; }
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.site-footer { max-width: 1180px; margin: 1.25rem auto 0; padding: 0 1.25rem 1.25rem; color: var(--paper); }
.footer-grid { display: grid; grid-template-columns: 1.2fr .9fr 1fr; gap: 1rem; background: rgba(38,26,18,.94); border-radius: 24px; padding: 1.5rem; border: 1px solid rgba(243,230,200,.14); }
.footer-grid p { color: rgba(243,230,200,.84); margin: .35rem 0; }
@media (max-width: 980px) {
    .hero, .split-section, .split-section.reverse, .video-feature { grid-template-columns: 1fr; }
    .card-grid.four, .people-grid, .process-list { grid-template-columns: repeat(2, 1fr); }
    .card-grid.three, .contact-grid, .footer-grid { grid-template-columns: 1fr; }
    .archive-catalog { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
    .menu-toggle { display: inline-flex; }
    .main-nav { display: none; padding-top: .2rem; }
    .main-nav.open { display: flex; flex-direction: column; }
    main, .site-footer { padding-left: .8rem; padding-right: .8rem; }
    .hero, .section, .page-hero { border-radius: 18px; }
    .card-grid.four, .people-grid, .process-list { grid-template-columns: 1fr; }
    .catalog-card, .article-card { grid-template-columns: 1fr; }
    h1 { font-size: 2.1rem; }
}