:root {
    --bg: #070710;
    --panel: rgba(18, 18, 32, 0.78);
    --panel-strong: rgba(25, 20, 42, 0.94);
    --line: rgba(255, 219, 129, 0.2);
    --gold: #ffd36b;
    --gold-soft: rgba(255, 211, 107, 0.22);
    --purple: #9f54ff;
    --pink: #ff47bd;
    --cyan: #45d6ff;
    --text: #f7f2ff;
    --muted: #bcb7d8;
    --shadow: 0 24px 90px rgba(110, 42, 255, 0.23);
    --radius-xl: 32px;
    --radius-lg: 24px;
    --radius-md: 18px;
    --max: 1200px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    min-height: 100vh;
    color: var(--text);
    background:
        radial-gradient(circle at 15% 12%, rgba(255, 211, 107, 0.14), transparent 34%),
        radial-gradient(circle at 80% 8%, rgba(159, 84, 255, 0.18), transparent 30%),
        radial-gradient(circle at 50% 100%, rgba(69, 214, 255, 0.13), transparent 36%),
        linear-gradient(130deg, #05050a 0%, #0d0718 48%, #050610 100%);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
    line-height: 1.7;
    overflow-x: hidden;
}
body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background-image: linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
    background-size: 56px 56px;
    mask-image: linear-gradient(to bottom, rgba(0,0,0,0.95), rgba(0,0,0,0.2));
    z-index: -2;
}
body::after {
    content: "";
    position: fixed;
    inset: auto -20% -40% -20%;
    height: 520px;
    background: radial-gradient(ellipse, rgba(255, 71, 189, 0.18), transparent 60%);
    filter: blur(20px);
    z-index: -3;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, input { font: inherit; }
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    border: 0;
}
.muted { color: var(--muted); }
.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(22px);
    background: linear-gradient(180deg, rgba(5,5,10,0.92), rgba(5,5,10,0.72));
    border-bottom: 1px solid rgba(255,255,255,0.08);
}
.nav-shell, .search-wrap, .footer-grid, .copyright, .section, .hero {
    width: min(var(--max), calc(100% - 36px));
    margin-inline: auto;
}
.nav-shell {
    min-height: 78px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 22px;
}
.logo {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    min-width: fit-content;
}
.logo-mark {
    width: 48px;
    height: 48px;
    display: grid;
    place-items: center;
    border-radius: 17px;
    color: #111;
    font-weight: 950;
    letter-spacing: -1px;
    background: linear-gradient(135deg, var(--gold), #fff0b2 45%, var(--purple));
    box-shadow: 0 0 26px rgba(255, 211, 107, 0.36), inset 0 0 18px rgba(255,255,255,0.3);
}
.logo-text {
    display: grid;
    font-size: 20px;
    font-weight: 900;
    letter-spacing: 0.06em;
}
.logo-text em {
    color: var(--gold);
    font-size: 10px;
    letter-spacing: 0.36em;
    font-style: normal;
    margin-top: -5px;
}
.nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-wrap: wrap;
    justify-content: flex-end;
}
.nav-links a {
    padding: 10px 13px;
    color: var(--muted);
    border: 1px solid transparent;
    border-radius: 999px;
    font-size: 14px;
    transition: 0.25s ease;
}
.nav-links a:hover, .nav-links a.is-active {
    color: var(--text);
    border-color: rgba(255, 211, 107, 0.35);
    background: linear-gradient(135deg, rgba(255,211,107,0.13), rgba(159,84,255,0.16));
    box-shadow: 0 0 25px rgba(159,84,255,0.18);
}
.nav-toggle {
    display: none;
    background: rgba(255,255,255,0.06);
    color: var(--text);
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 9px 14px;
}
.search-wrap {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 12px;
    padding: 0 0 16px;
}
.search-wrap input {
    width: 100%;
    color: var(--text);
    padding: 15px 18px;
    border-radius: 999px;
    border: 1px solid rgba(255, 211, 107, 0.28);
    outline: none;
    background: rgba(10,10,18,0.74);
    box-shadow: inset 0 0 28px rgba(159,84,255,0.08);
}
.search-wrap button, .btn, .ghost-btn {
    cursor: pointer;
    padding: 14px 18px;
    border-radius: 999px;
    border: 1px solid rgba(255, 211, 107, 0.35);
    color: #15110a;
    font-weight: 800;
    background: linear-gradient(135deg, var(--gold), #fff0ba 50%, #c99cff);
    box-shadow: 0 12px 38px rgba(255, 211, 107, 0.22);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.search-wrap button:hover, .btn:hover, .ghost-btn:hover { transform: translateY(-2px); box-shadow: 0 18px 52px rgba(159,84,255,0.3); }
.search-note {
    grid-column: 1 / -1;
    margin: -4px 0 0;
    color: var(--muted);
    font-size: 13px;
}
.hero {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    align-items: center;
    gap: 34px;
    min-height: 710px;
    padding: 78px 0 46px;
}
.hero-kicker, .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--gold);
    text-transform: uppercase;
    letter-spacing: 0.18em;
    font-size: 12px;
    font-weight: 800;
}
.hero-kicker::before, .eyebrow::before {
    content: "";
    width: 34px;
    height: 2px;
    background: linear-gradient(90deg, var(--gold), var(--purple));
    border-radius: 2px;
}
h1, h2, h3, h4, h5, h6 { line-height: 1.18; margin: 0; }
h1 {
    margin-top: 18px;
    font-size: clamp(42px, 7vw, 86px);
    letter-spacing: -0.06em;
}
.gradient-text {
    color: transparent;
    background: linear-gradient(110deg, #fff, var(--gold) 38%, #dbb8ff 65%, var(--cyan));
    -webkit-background-clip: text;
    background-clip: text;
}
.hero-desc {
    max-width: 690px;
    margin: 22px 0 0;
    color: var(--muted);
    font-size: 18px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.ghost-btn {
    color: var(--text);
    background: rgba(255,255,255,0.06);
    border-color: rgba(159,84,255,0.45);
    box-shadow: inset 0 0 30px rgba(159,84,255,0.13);
}
.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    margin-top: 38px;
}
.stat-card {
    padding: 17px;
    border-radius: var(--radius-md);
    background: rgba(255,255,255,0.055);
    border: 1px solid rgba(255,255,255,0.08);
}
.stat-card strong { display: block; font-size: 24px; color: var(--gold); }
.stat-card span { color: var(--muted); font-size: 13px; }
.hero-visual {
    position: relative;
}
.hero-visual::before {
    content: "";
    position: absolute;
    inset: -18px;
    border-radius: 40px;
    background: conic-gradient(from 140deg, rgba(255,211,107,0.2), rgba(159,84,255,0.28), rgba(69,214,255,0.19), rgba(255,211,107,0.2));
    filter: blur(18px);
    z-index: -1;
}
.neon-frame {
    position: relative;
    border-radius: 36px;
    overflow: hidden;
    border: 1px solid rgba(255,211,107,0.27);
    box-shadow: var(--shadow);
    background: #080812;
}
.neon-frame img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.video-glass {
    position: absolute;
    left: 20px;
    right: 20px;
    bottom: 18px;
    padding: 17px;
    border-radius: 24px;
    background: rgba(5,5,12,0.76);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(255,255,255,0.1);
}
.video-glass h2 { font-size: 22px; }
.video-glass p { margin: 8px 0 0; color: var(--muted); }
.section { padding: 58px 0; }
.section-head {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 26px;
}
.section-head h2 { font-size: clamp(28px, 4vw, 48px); letter-spacing: -0.04em; }
.section-head p { max-width: 620px; color: var(--muted); margin: 10px 0 0; }
.grid { display: grid; gap: 20px; }
.grid.cards { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid.four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.card, .video-card, .topic-card, .faq-item, .review-card, .expert-card, .contact-card {
    position: relative;
    border: 1px solid rgba(255,255,255,0.09);
    border-radius: var(--radius-lg);
    background: linear-gradient(145deg, rgba(255,255,255,0.075), rgba(255,255,255,0.035));
    box-shadow: 0 18px 70px rgba(0,0,0,0.24);
    overflow: hidden;
}
.card::before, .video-card::before, .topic-card::before, .faq-item::before, .review-card::before, .expert-card::before, .contact-card::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 20% 0%, rgba(255,211,107,0.11), transparent 38%), radial-gradient(circle at 85% 5%, rgba(159,84,255,0.14), transparent 36%);
    pointer-events: none;
}
.card-inner { position: relative; padding: 24px; }
.video-card { transition: 0.3s ease; }
.video-card:hover { transform: translateY(-6px); border-color: rgba(255,211,107,0.42); box-shadow: 0 26px 90px rgba(159,84,255,0.24); }
.video-thumb { position: relative; overflow: hidden; background: #080812; }
.video-thumb img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; transform: scale(1.02); transition: transform 0.5s ease, filter 0.5s ease; }
.video-thumb video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0; }
.video-card:hover .video-thumb img { transform: scale(1.08); filter: saturate(1.25) contrast(1.08); }
.play-btn {
    position: absolute;
    inset: 0;
    margin: auto;
    width: 74px;
    height: 74px;
    border-radius: 999px;
    display: grid;
    place-items: center;
    color: #15110a;
    background: linear-gradient(135deg, var(--gold), #fff0b6, var(--purple));
    opacity: 0;
    transform: scale(0.75);
    transition: 0.25s ease;
    box-shadow: 0 0 42px rgba(255,211,107,0.5);
}
.play-btn::before {
    content: "";
    margin-left: 5px;
    width: 0;
    height: 0;
    border-top: 14px solid transparent;
    border-bottom: 14px solid transparent;
    border-left: 21px solid #111;
}
.video-card:hover .play-btn { opacity: 1; transform: scale(1); }
.video-body { position: relative; padding: 20px; }
.badge-row, .tag-row, .metric-row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.badge, .tag {
    display: inline-flex;
    border-radius: 999px;
    padding: 5px 10px;
    color: var(--gold);
    background: rgba(255,211,107,0.1);
    border: 1px solid rgba(255,211,107,0.22);
    font-size: 12px;
    font-weight: 700;
}
.tag { color: #d9cbff; border-color: rgba(159,84,255,0.25); background: rgba(159,84,255,0.1); }
.video-body h3 { margin: 14px 0 10px; font-size: 21px; }
.video-body p { margin: 0; color: var(--muted); }
.metric-row { margin-top: 16px; color: #dbd5f6; font-size: 13px; justify-content: space-between; }
.metric-row span { white-space: nowrap; }
.topic-card, .review-card, .expert-card, .faq-item, .contact-card { padding: 24px; }
.topic-card h3, .review-card h3, .expert-card h3, .faq-item h3, .contact-card h3 { position: relative; font-size: 20px; }
.topic-card p, .review-card p, .expert-card p, .faq-item p, .contact-card p { position: relative; color: var(--muted); margin: 10px 0 0; }
.barrage {
    min-height: 270px;
    border-radius: var(--radius-xl);
    padding: 28px;
    overflow: hidden;
    border: 1px solid rgba(255,211,107,0.2);
    background:
        radial-gradient(circle at 20% 20%, rgba(255,211,107,0.16), transparent 35%),
        radial-gradient(circle at 80% 40%, rgba(159,84,255,0.18), transparent 36%),
        rgba(10,10,19,0.78);
}
.bullet {
    display: table;
    margin: 10px 0;
    padding: 10px 14px;
    border-radius: 999px;
    color: var(--text);
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.09);
    animation: floatLine 9s linear infinite;
}
.bullet:nth-child(2) { margin-left: 18%; animation-duration: 11s; }
.bullet:nth-child(3) { margin-left: 36%; animation-duration: 10s; }
.bullet:nth-child(4) { margin-left: 8%; animation-duration: 12s; }
@keyframes floatLine {
    0%, 100% { transform: translateX(0); opacity: 0.92; }
    50% { transform: translateX(34px); opacity: 1; }
}
.logo-wall { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 14px; }
.partner-logo {
    min-height: 82px;
    display: grid;
    place-items: center;
    text-align: center;
    border-radius: 20px;
    color: var(--text);
    font-weight: 850;
    background: rgba(255,255,255,0.055);
    border: 1px solid rgba(255,255,255,0.08);
}
.steps { counter-reset: step; display: grid; gap: 14px; }
.step {
    counter-increment: step;
    position: relative;
    padding: 18px 18px 18px 62px;
    border-radius: 20px;
    background: rgba(255,255,255,0.055);
    border: 1px solid rgba(255,255,255,0.08);
}
.step::before {
    content: counter(step);
    position: absolute;
    left: 18px;
    top: 18px;
    width: 30px;
    height: 30px;
    display: grid;
    place-items: center;
    color: #111;
    font-weight: 900;
    border-radius: 10px;
    background: var(--gold);
}
.faq-item summary {
    position: relative;
    cursor: pointer;
    font-weight: 850;
    color: var(--text);
}
.faq-item p { margin-bottom: 0; }
.page-hero {
    width: min(var(--max), calc(100% - 36px));
    margin: 0 auto;
    padding: 82px 0 34px;
}
.page-hero h1 { max-width: 940px; }
.breadcrumb {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    color: var(--muted);
    margin-top: 14px;
    font-size: 14px;
}
.breadcrumb a { color: var(--gold); }
.feature-strip {
    display: grid;
    grid-template-columns: repeat(3, minmax(0,1fr));
    gap: 16px;
    margin-top: 26px;
}
.feature-strip .card-inner strong { display: block; color: var(--gold); font-size: 24px; }
.contact-layout { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 22px; align-items: start; }
.form-demo {
    display: grid;
    gap: 12px;
}
.form-demo input, .form-demo textarea {
    width: 100%;
    color: var(--text);
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.11);
    border-radius: 16px;
    padding: 14px;
    outline: none;
}
.form-demo textarea { min-height: 132px; resize: vertical; }
.site-footer {
    margin-top: 44px;
    border-top: 1px solid rgba(255,255,255,0.08);
    background: rgba(4,4,9,0.82);
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
    gap: 28px;
    padding: 50px 0 34px;
}
.footer-grid h2 { font-size: 18px; margin-bottom: 12px; }
.footer-grid p, .footer-links { color: var(--muted); margin: 8px 0 0; }
.footer-links { padding: 0; list-style: none; display: grid; gap: 7px; }
.footer-links a:hover { color: var(--gold); }
.footer-qr { width: 150px; height: 150px; object-fit: cover; border-radius: 22px; border: 1px solid var(--line); }
.copyright {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    padding: 18px 0 26px;
    color: var(--muted);
    border-top: 1px solid rgba(255,255,255,0.07);
}
.copyright a { color: var(--gold); }
@media (max-width: 980px) {
    .nav-toggle { display: inline-flex; }
    .nav-links {
        position: absolute;
        left: 18px;
        right: 18px;
        top: 74px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: 16px;
        border-radius: 24px;
        background: rgba(9,9,18,0.96);
        border: 1px solid rgba(255,255,255,0.1);
    }
    .nav-links.is-open { display: flex; }
    .nav-links a { text-align: center; }
    .hero { grid-template-columns: 1fr; min-height: auto; padding-top: 52px; }
    .grid.cards { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .grid.four, .logo-wall, .footer-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .contact-layout { grid-template-columns: 1fr; }
}
@media (max-width: 680px) {
    .nav-shell, .search-wrap, .footer-grid, .copyright, .section, .hero, .page-hero { width: min(100% - 24px, var(--max)); }
    .search-wrap { grid-template-columns: 1fr; }
    .hero-stats, .feature-strip, .grid.cards, .grid.two, .grid.four, .logo-wall, .footer-grid { grid-template-columns: 1fr; }
    .section-head { display: block; }
    .hero { padding-top: 34px; }
    .hero-actions a { width: 100%; text-align: center; }
    .copyright { flex-direction: column; }
    .video-glass { position: static; border-radius: 0; }
}