:root {
    --primary: #00B8A9;
    --primary-strong: #008E82;
    --primary-soft: rgba(0, 184, 169, 0.16);
    --bg: #080D14;
    --bg-deep: #05080D;
    --surface: #101822;
    --surface-soft: #162231;
    --surface-line: rgba(231, 250, 248, 0.12);
    --text: #F4FCFB;
    --muted: #B4C7C8;
    --faint: #7E9698;
    --paper: #F6FAFA;
    --ink: #172026;
    --warning: #F3C96A;
    --radius: 18px;
    --shadow: 0 18px 55px rgba(0, 0, 0, 0.28);
    --max: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
    background: radial-gradient(circle at top left, rgba(0,184,169,.18), transparent 28rem), var(--bg);
    color: var(--text);
    line-height: 1.72;
    overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
main { min-height: 65vh; }
.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(8, 13, 20, .88);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--surface-line);
}
.mobile-header {
    height: 62px;
    padding: 0 14px;
    display: grid;
    grid-template-columns: 44px 1fr auto;
    align-items: center;
    gap: 10px;
}
.menu-button {
    width: 42px;
    height: 42px;
    border: 1px solid var(--surface-line);
    border-radius: 14px;
    background: rgba(255,255,255,.04);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 5px;
    padding: 0;
    cursor: pointer;
}
.menu-button span { width: 18px; height: 2px; border-radius: 2px; background: var(--text); }
.mobile-logo { justify-self: center; display: inline-flex; align-items: center; }
.mobile-logo img { width: 112px; max-height: 36px; object-fit: contain; }
.logo img, .desktop-logo img { width: 136px; max-height: 42px; object-fit: contain; }
.top-action-button, .main-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 0 20px;
    border-radius: 999px;
    background: var(--primary);
    color: #06211E;
    font-weight: 800;
    letter-spacing: .02em;
    box-shadow: 0 10px 30px rgba(0,184,169,.24);
    transition: filter .2s ease, transform .2s ease;
    white-space: nowrap;
}
.top-action-button:hover, .main-button:hover { filter: brightness(.85); transform: translateY(-1px); }
.top-action-button.compact { min-height: 38px; padding: 0 16px; font-size: 14px; }
.mobile-drawer {
    display: none;
    background: rgba(8, 13, 20, .98);
    border-top: 1px solid var(--surface-line);
}
.mobile-drawer.open { display: block; }
.mobile-nav { padding: 12px 16px 18px; display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.mobile-nav a {
    padding: 12px 14px;
    border-radius: 14px;
    background: rgba(255,255,255,.05);
    color: var(--muted);
    font-weight: 700;
}
.mobile-nav a.active, .mobile-nav a:hover { color: var(--text); background: var(--primary-soft); box-shadow: inset 0 0 0 1px rgba(0,184,169,.38); }
.desktop-header { display: none; }
.search-icon {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    border: 1px solid var(--surface-line);
    position: relative;
}
.search-icon:before {
    content: "";
    position: absolute;
    width: 13px;
    height: 13px;
    border: 2px solid var(--muted);
    border-radius: 50%;
    left: 12px;
    top: 11px;
}
.search-icon:after {
    content: "";
    position: absolute;
    width: 9px;
    height: 2px;
    background: var(--muted);
    transform: rotate(45deg);
    right: 11px;
    bottom: 12px;
    border-radius: 2px;
}
.section, .page-section { width: min(100% - 28px, var(--max)); margin: 0 auto; padding: 58px 0; }
.banner-section, .movie-hero {
    position: relative;
    min-height: 620px;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: linear-gradient(90deg, rgba(5,8,13,.96) 0%, rgba(5,8,13,.72) 52%, rgba(5,8,13,.28) 100%), url('banner.webp') center/cover no-repeat;
    border-bottom: 1px solid var(--surface-line);
}
.hero-content { width: min(100% - 28px, var(--max)); margin: 0 auto; padding: 86px 0 74px; }
.eyebrow, .badge, .section-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 12px;
    border-radius: 999px;
    background: var(--primary-soft);
    color: #8FFFF2;
    border: 1px solid rgba(0,184,169,.32);
    font-weight: 800;
    font-size: 13px;
}
.eyebrow:before, .badge:before, .section-badge:before {
    content: "";
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--primary);
    box-shadow: 0 0 16px var(--primary);
}
h1, h2, h3 { line-height: 1.18; margin: 0; }
h1 { font-size: clamp(34px, 9vw, 72px); letter-spacing: -.06em; max-width: 850px; margin-top: 22px; }
h2 { font-size: clamp(26px, 5vw, 44px); letter-spacing: -.04em; margin-bottom: 18px; }
h3 { font-size: 20px; letter-spacing: -.02em; }
p { margin: 0; color: var(--muted); }
.hero-content p { max-width: 720px; font-size: 17px; margin: 20px 0 28px; color: #D5E5E5; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.hero-meta span { border: 1px solid var(--surface-line); background: rgba(255,255,255,.05); border-radius: 999px; padding: 7px 12px; color: var(--muted); font-size: 13px; }
.section-head { display: flex; justify-content: space-between; gap: 20px; align-items: flex-end; margin-bottom: 26px; }
.section-head p { max-width: 620px; }
.category-grid, .service-grid, .card-grid { display: grid; gap: 16px; grid-template-columns: 1fr; }
.category-grid.two, .service-grid.two { grid-template-columns: 1fr; }
.movie-card, .service-card, .info-card, .faq-item, .data-card {
    position: relative;
    padding: 22px;
    border-radius: var(--radius);
    background: linear-gradient(180deg, rgba(255,255,255,.07), rgba(255,255,255,.035));
    border: 1px solid var(--surface-line);
    box-shadow: 0 12px 35px rgba(0,0,0,.14);
    overflow: hidden;
}
.movie-card:after, .service-card:after, .data-card:after {
    content: "";
    position: absolute;
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: var(--primary-soft);
    right: -58px;
    top: -58px;
}
.movie-card .card-link, .text-link {
    display: inline-flex;
    margin-top: 18px;
    color: #8FFFF2;
    font-weight: 800;
}
.card-badge { color: #082A26; background: var(--primary); display: inline-flex; padding: 5px 10px; border-radius: 999px; font-size: 12px; font-weight: 900; margin-bottom: 15px; }
.feature-split, .device-showcase, .security-section, .parental-guidance-section {
    display: grid;
    grid-template-columns: 1fr;
    gap: 28px;
    align-items: center;
}
.feature-media, .device-media { border-radius: 24px; overflow: hidden; border: 1px solid var(--surface-line); box-shadow: var(--shadow); background: var(--surface); }
.feature-media img, .device-media img { width: 100%; height: auto; object-fit: cover; }
.bullet-list { list-style: none; margin: 22px 0 0; padding: 0; display: grid; gap: 10px; }
.bullet-list li { position: relative; padding-left: 24px; color: var(--muted); }
.bullet-list li:before { content: ""; position: absolute; left: 0; top: .68em; width: 8px; height: 8px; border-radius: 50%; background: var(--primary); }
.data-chart-panel {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
    padding: 18px;
    border-radius: 22px;
    background: rgba(0,0,0,.18);
    border: 1px solid var(--surface-line);
}
.chart-row { display: grid; grid-template-columns: 92px 1fr 50px; gap: 12px; align-items: center; color: var(--muted); font-size: 14px; }
.chart-track { height: 10px; border-radius: 999px; background: rgba(255,255,255,.08); overflow: hidden; }
.chart-track span { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--primary), #8FFFF2); }
.notice-box {
    margin-top: 18px;
    padding: 18px;
    border-radius: 18px;
    border: 1px solid rgba(243,201,106,.28);
    background: rgba(243,201,106,.08);
    color: #F6E3AE;
}
.cta-band {
    width: min(100% - 28px, var(--max));
    margin: 28px auto 70px;
    padding: 34px;
    border-radius: 28px;
    background: linear-gradient(135deg, rgba(0,184,169,.92), rgba(0,142,130,.92));
    color: #06211E;
    display: grid;
    gap: 22px;
    align-items: center;
}
.cta-band p, .cta-band h2 { color: #06211E; }
.cta-band .main-button { background: #EFFFFD; color: #06211E; box-shadow: none; justify-self: start; }
.page-hero {
    width: min(100% - 28px, var(--max));
    margin: 0 auto;
    padding: 54px 0 26px;
}
.page-hero p { max-width: 830px; font-size: 17px; margin-top: 18px; }
.content-panel { width: min(100% - 28px, var(--max)); margin: 0 auto; padding: 28px 0 66px; }
.prose-grid { display: grid; gap: 18px; }
.prose-block {
    padding: 24px;
    border-radius: 22px;
    background: rgba(255,255,255,.045);
    border: 1px solid var(--surface-line);
}
.prose-block h2 { font-size: 25px; margin-bottom: 12px; }
.page-list { display: grid; gap: 12px; margin: 16px 0 0; padding: 0; list-style: none; }
.page-list li { padding: 14px 16px; border-radius: 14px; background: rgba(255,255,255,.045); border: 1px solid var(--surface-line); color: var(--muted); }
.faq-list { display: grid; gap: 14px; }
.faq-item h3 { margin-bottom: 10px; }
.site-footer { background: var(--bg-deep); border-top: 1px solid var(--surface-line); }
.footer-inner { width: min(100% - 28px, var(--max)); margin: 0 auto; padding: 42px 0; display: grid; gap: 28px; }
.footer-logo { width: 126px; margin-bottom: 14px; }
.footer-brand p { max-width: 520px; }
.footer-grid { display: grid; grid-template-columns: 1fr; gap: 22px; }
.footer-grid h3 { margin-bottom: 12px; }
.footer-grid a { display: block; color: var(--muted); padding: 5px 0; }
.footer-grid a:hover { color: #8FFFF2; }
.legal-strip { width: min(100% - 28px, var(--max)); margin: 0 auto; border-top: 1px solid var(--surface-line); padding: 20px 0 28px; display: grid; gap: 8px; font-size: 13px; }
@media (min-width: 680px) {
    .category-grid, .service-grid, .card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .footer-grid { grid-template-columns: repeat(3, 1fr); }
    .cta-band { grid-template-columns: 1fr auto; }
}
@media (min-width: 980px) {
    .mobile-header, .mobile-drawer { display: none !important; }
    .desktop-header {
        width: min(100% - 34px, var(--max));
        margin: 0 auto;
        height: 76px;
        display: grid;
        grid-template-columns: auto 1fr auto auto;
        align-items: center;
        gap: 20px;
    }
    .desktop-nav { display: flex; align-items: center; justify-content: center; gap: 22px; }
    .desktop-nav a { position: relative; color: var(--muted); font-weight: 800; font-size: 14px; padding: 28px 0; }
    .desktop-nav a:after { content: ""; position: absolute; left: 0; right: 0; bottom: 18px; height: 2px; background: var(--primary); transform: scaleX(0); transition: transform .2s ease; transform-origin: center; }
    .desktop-nav a.active, .desktop-nav a:hover { color: var(--text); }
    .desktop-nav a.active:after, .desktop-nav a:hover:after { transform: scaleX(1); }
    .banner-section, .movie-hero { min-height: 680px; }
    .category-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .service-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .card-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .feature-split, .device-showcase, .security-section, .parental-guidance-section { grid-template-columns: 1.05fr .95fr; }
    .feature-split.reverse { grid-template-columns: .95fr 1.05fr; }
    .feature-split.reverse .feature-media { order: -1; }
    .data-chart-panel { padding: 24px; }
    .prose-grid { grid-template-columns: 1fr 1fr; }
    .prose-block.wide { grid-column: 1 / -1; }
    .footer-inner { grid-template-columns: 1.1fr 1.4fr; }
}
@media (max-width: 420px) {
    .mobile-nav { grid-template-columns: 1fr; }
    .section, .page-section { width: min(100% - 22px, var(--max)); padding: 44px 0; }
    .hero-content { width: min(100% - 22px, var(--max)); }
    .banner-section { min-height: 590px; background-position: center top; }
    .chart-row { grid-template-columns: 76px 1fr 42px; font-size: 12px; }
}