:root {
    --bg: #080706;
    --bg-soft: #11100e;
    --bg-panel: #17130f;
    --gold: #d7aa57;
    --gold-soft: #f1d58f;
    --red: #7d1716;
    --red-soft: #b23b30;
    --text: #f7efe1;
    --muted: #b9ad9a;
    --line: rgba(215, 170, 87, 0.22);
    --shadow: 0 22px 60px rgba(0, 0, 0, 0.42);
    --radius: 24px;
    --radius-sm: 16px;
    --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at 20% 0%, rgba(178, 59, 48, 0.22), transparent 32rem),
        radial-gradient(circle at 80% 12%, rgba(215, 170, 87, 0.18), transparent 28rem),
        linear-gradient(180deg, #080706 0%, #0d0b09 48%, #070605 100%);
    line-height: 1.7;
    min-height: 100vh;
}

body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }
button, input, textarea, select { font: inherit; }
.container { width: min(100% - 40px, var(--max)); margin: 0 auto; }

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(18px);
    background: rgba(8, 7, 6, 0.78);
    border-bottom: 1px solid var(--line);
}
.nav-shell {
    height: 76px;
    display: flex;
    align-items: center;
    gap: 22px;
}
.brand-mark { display: inline-flex; align-items: center; gap: 12px; min-width: max-content; }
.brand-symbol {
    display: inline-grid;
    place-items: center;
    width: 46px;
    height: 46px;
    border-radius: 15px;
    color: #140c05;
    font-weight: 900;
    letter-spacing: -0.05em;
    background: linear-gradient(135deg, var(--gold-soft), var(--gold) 45%, #8e5c1f);
    box-shadow: 0 10px 28px rgba(215, 170, 87, 0.22);
}
.brand-text { font-weight: 800; letter-spacing: 0.02em; }
.main-nav { margin-left: auto; display: flex; align-items: center; gap: 4px; }
.main-nav a {
    color: var(--muted);
    padding: 10px 12px;
    border-radius: 999px;
    font-size: 15px;
    transition: 0.25s ease;
}
.main-nav a:hover, .main-nav a.is-active { color: var(--text); background: rgba(215, 170, 87, 0.12); }
.header-action, .btn, .ghost-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 44px;
    padding: 10px 18px;
    border-radius: 999px;
    font-weight: 800;
    border: 1px solid transparent;
    transition: transform 0.25s ease, border-color 0.25s ease, background 0.25s ease;
}
.header-action, .btn {
    color: #160d05;
    background: linear-gradient(135deg, var(--gold-soft), var(--gold));
    box-shadow: 0 12px 28px rgba(215, 170, 87, 0.18);
}
.ghost-btn { color: var(--gold-soft); border-color: var(--line); background: rgba(255, 255, 255, 0.03); }
.header-action:hover, .btn:hover, .ghost-btn:hover { transform: translateY(-2px); }
.nav-toggle { display: none; width: 46px; height: 46px; border: 1px solid var(--line); border-radius: 14px; background: rgba(255,255,255,0.04); color: var(--text); }
.nav-toggle span { display: block; width: 20px; height: 2px; background: currentColor; margin: 5px auto; border-radius: 2px; }

.hero {
    position: relative;
    overflow: hidden;
    padding: 72px 0 52px;
}
.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    background:
        linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px) 0 0 / 64px 64px,
        linear-gradient(0deg, rgba(255,255,255,0.025) 1px, transparent 1px) 0 0 / 64px 64px;
    mask-image: linear-gradient(180deg, black, transparent 86%);
}
.hero-grid { position: relative; display: grid; grid-template-columns: 1.02fr 0.98fr; align-items: center; gap: 42px; }
.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--gold-soft);
    background: rgba(215, 170, 87, 0.11);
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 8px 14px;
    font-weight: 800;
    font-size: 14px;
}
.eyebrow::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--red-soft); box-shadow: 0 0 18px var(--red-soft); }
h1, .page-title {
    margin: 20px 0 18px;
    font-size: clamp(42px, 7vw, 82px);
    line-height: 1.02;
    letter-spacing: -0.06em;
}
.lead { color: #dccfb8; font-size: clamp(17px, 2.5vw, 21px); max-width: 760px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin: 30px 0; }
.hero-metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 28px; }
.metric-card {
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: linear-gradient(180deg, rgba(255,255,255,0.07), rgba(255,255,255,0.025));
}
.metric-card strong { display: block; color: var(--gold-soft); font-size: 22px; }
.metric-card span { color: var(--muted); font-size: 14px; }
.hero-visual { position: relative; }
.hero-visual img { width: 100%; border-radius: 28px; box-shadow: var(--shadow); border: 1px solid rgba(215, 170, 87, 0.24); }
.floating-panel {
    position: absolute;
    left: -24px;
    bottom: 24px;
    width: min(310px, 78%);
    padding: 16px;
    border-radius: 20px;
    background: rgba(11, 10, 8, 0.78);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
    backdrop-filter: blur(18px);
}
.floating-panel strong { color: var(--gold-soft); display: block; margin-bottom: 4px; }
.floating-panel span { color: var(--muted); font-size: 14px; }

.section { padding: 58px 0; }
.section-heading { display: flex; justify-content: space-between; align-items: end; gap: 24px; margin-bottom: 26px; }
.section-heading h2 { margin: 0; font-size: clamp(28px, 4vw, 44px); line-height: 1.12; letter-spacing: -0.04em; }
.section-heading p { color: var(--muted); margin: 8px 0 0; max-width: 620px; }
.section-link { color: var(--gold-soft); font-weight: 800; }

.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card-grid.four { grid-template-columns: repeat(4, 1fr); }
.feature-card, .poster-card, .topic-card, .info-card, .feedback-card, .question-card, .contact-card, .schedule-card {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: linear-gradient(180deg, rgba(255,255,255,0.07), rgba(255,255,255,0.025));
    box-shadow: 0 18px 48px rgba(0,0,0,0.22);
    overflow: hidden;
}
.poster-card { position: relative; }
.poster-media { position: relative; aspect-ratio: 16 / 10; overflow: hidden; background: #100e0c; }
.poster-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.35s ease; }
.poster-media::after {
    content: "▶";
    position: absolute;
    inset: auto 18px 18px auto;
    display: grid;
    place-items: center;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    color: #180f06;
    background: linear-gradient(135deg, var(--gold-soft), var(--gold));
    box-shadow: 0 10px 32px rgba(215, 170, 87, 0.36);
    transform: scale(0.82);
    opacity: 0;
    transition: 0.28s ease;
}
.poster-card:hover .poster-media img { transform: scale(1.06); }
.poster-card:hover .poster-media::after { transform: scale(1); opacity: 1; }
.poster-body { padding: 18px; }
.tag-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; }
.tag { color: var(--gold-soft); border: 1px solid var(--line); border-radius: 999px; padding: 4px 9px; font-size: 12px; background: rgba(215, 170, 87, 0.08); }
.poster-body h3, .feature-card h3, .topic-card h3, .info-card h3, .feedback-card h3, .question-card h3, .contact-card h3, .schedule-card h3 { margin: 0 0 8px; }
.poster-body p, .feature-card p, .topic-card p, .info-card p, .feedback-card p, .question-card p, .contact-card p, .schedule-card p { color: var(--muted); margin: 0; }
.rating { color: var(--gold-soft); font-weight: 900; margin-top: 12px; }
.feature-card, .info-card, .feedback-card, .question-card, .contact-card, .schedule-card { padding: 22px; }
.feature-icon { width: 54px; height: 54px; border-radius: 18px; display: grid; place-items: center; margin-bottom: 16px; color: #160d05; background: linear-gradient(135deg, var(--gold-soft), var(--gold)); font-weight: 900; }

.split-section { display: grid; grid-template-columns: 0.92fr 1.08fr; gap: 28px; align-items: center; }
.panel {
    border: 1px solid var(--line);
    border-radius: 30px;
    padding: 26px;
    background: linear-gradient(135deg, rgba(125, 23, 22, 0.22), rgba(215, 170, 87, 0.08));
    box-shadow: var(--shadow);
}
.panel img { border-radius: 22px; border: 1px solid rgba(215, 170, 87, 0.2); }
.list { display: grid; gap: 14px; margin: 22px 0 0; padding: 0; list-style: none; }
.list li { padding-left: 28px; position: relative; color: #e6dac7; }
.list li::before { content: ""; position: absolute; left: 0; top: 0.72em; width: 12px; height: 2px; background: var(--gold); box-shadow: 0 0 16px var(--gold); }

.category-strip { display: flex; flex-wrap: wrap; gap: 12px; }
.category-pill {
    padding: 12px 16px;
    border-radius: 999px;
    border: 1px solid var(--line);
    color: #eadfcd;
    background: rgba(255, 255, 255, 0.04);
}
.category-pill:hover { background: rgba(215, 170, 87, 0.12); color: var(--gold-soft); }
.topic-card { display: grid; grid-template-columns: 150px 1fr; min-height: 160px; }
.topic-card img { width: 100%; height: 100%; object-fit: cover; }
.topic-body { padding: 18px; }

.page-hero { padding: 58px 0 28px; }
.page-hero .lead { max-width: 860px; }
.breadcrumb { color: var(--muted); font-size: 14px; }
.breadcrumb a { color: var(--gold-soft); }
.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 22px 0 30px;
}
.filter-btn {
    border: 1px solid var(--line);
    color: var(--muted);
    background: rgba(255,255,255,0.04);
    border-radius: 999px;
    padding: 10px 14px;
    cursor: pointer;
}
.filter-btn.is-active, .filter-btn:hover { color: #160d05; background: linear-gradient(135deg, var(--gold-soft), var(--gold)); }
.content-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.schedule-list { display: grid; gap: 16px; }
.schedule-card { display: grid; grid-template-columns: 92px 1fr; gap: 18px; align-items: center; }
.date-badge { display: grid; place-items: center; border-radius: 18px; min-height: 74px; color: #160d05; background: linear-gradient(135deg, var(--gold-soft), var(--gold)); font-weight: 900; }
.date-badge span { display: block; font-size: 13px; }
.form-card form { display: grid; gap: 14px; }
.form-card label { color: var(--gold-soft); font-weight: 800; }
.form-card input, .form-card textarea, .form-card select {
    width: 100%;
    color: var(--text);
    background: rgba(255,255,255,0.055);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 12px 14px;
    outline: none;
}
.form-card textarea { min-height: 130px; resize: vertical; }
.notice { color: var(--muted); font-size: 14px; }
.domain-box {
    display: grid;
    gap: 8px;
    padding: 18px;
    border: 1px dashed rgba(215, 170, 87, 0.45);
    border-radius: 18px;
    background: rgba(215, 170, 87, 0.08);
}
.domain-box strong { color: var(--gold-soft); overflow-wrap: anywhere; }

.cta-band {
    margin: 48px 0 0;
    border-radius: 32px;
    padding: 38px;
    background:
        linear-gradient(135deg, rgba(125, 23, 22, 0.68), rgba(215, 170, 87, 0.28)),
        linear-gradient(180deg, rgba(255,255,255,0.07), rgba(255,255,255,0.025));
    border: 1px solid var(--line);
    display: flex;
    justify-content: space-between;
    gap: 24px;
    align-items: center;
}
.cta-band h2 { margin: 0 0 8px; font-size: clamp(28px, 4vw, 44px); }
.cta-band p { margin: 0; color: #f0dfc1; max-width: 680px; }

.site-footer { margin-top: 52px; background: #070604; border-top: 1px solid var(--line); }
.footer-grid { display: grid; grid-template-columns: 1.6fr 0.7fr 0.9fr; gap: 36px; padding: 48px 0; }
.footer-grid p, .footer-grid span { color: var(--muted); }
.footer-grid h3 { margin: 0 0 12px; color: var(--gold-soft); }
.footer-grid a { display: block; color: var(--muted); margin: 8px 0; }
.footer-grid a:hover { color: var(--gold-soft); }
.footer-brand { margin-bottom: 16px; }
.footer-bottom { border-top: 1px solid rgba(215,170,87,0.14); }
.bottom-row { min-height: 54px; display: flex; justify-content: space-between; align-items: center; gap: 18px; color: var(--muted); font-size: 14px; }

.reveal { opacity: 0; transform: translateY(18px); transition: 0.6s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@media (max-width: 980px) {
    .header-action { display: none; }
    .nav-toggle { display: block; margin-left: auto; }
    .main-nav {
        position: fixed;
        inset: 76px 16px auto 16px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: 16px;
        border: 1px solid var(--line);
        border-radius: 22px;
        background: rgba(11, 10, 8, 0.96);
        box-shadow: var(--shadow);
    }
    body.menu-open .main-nav { display: flex; }
    .main-nav a { padding: 13px 15px; }
    .hero-grid, .split-section, .content-row { grid-template-columns: 1fr; }
    .card-grid, .card-grid.four { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 680px) {
    .container { width: min(100% - 28px, var(--max)); }
    .nav-shell { height: 70px; }
    .brand-text { display: none; }
    .hero { padding: 48px 0 30px; }
    .hero-metrics { grid-template-columns: 1fr; }
    .section { padding: 42px 0; }
    .section-heading { display: block; }
    .card-grid, .card-grid.four { grid-template-columns: 1fr; }
    .topic-card { grid-template-columns: 1fr; }
    .topic-card img { aspect-ratio: 16 / 9; }
    .schedule-card { grid-template-columns: 1fr; }
    .floating-panel { left: 12px; right: 12px; width: auto; bottom: 12px; }
    .cta-band { display: block; padding: 26px; }
    .cta-band .btn { margin-top: 18px; width: 100%; }
    .footer-grid { grid-template-columns: 1fr; }
    .bottom-row { flex-direction: column; justify-content: center; padding: 14px 0; text-align: center; }
}