/* 糖心vlog极简高端中文官网样式：外部CSS、本地资源、移动端优先 */
:root {
    --bg: #f8f5ef;
    --surface: #fffdf9;
    --ink: #151515;
    --muted: #6f6a62;
    --line: rgba(21, 21, 21, .12);
    --accent: #c49a62;
    --accent-soft: #ead8bd;
    --shadow: 0 24px 80px rgba(24, 20, 15, .10);
    --radius-xl: 36px;
    --radius-lg: 24px;
    --radius-md: 16px;
    --max: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    color: var(--ink);
    background: radial-gradient(circle at top left, #fff 0, var(--bg) 38%, #f3efe8 100%);
    line-height: 1.7;
}
a { color: inherit; text-decoration: none; }
img, video { max-width: 100%; display: block; }
button, input, textarea { font: inherit; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    backdrop-filter: blur(18px);
    background: rgba(248,245,239,.82);
    border-bottom: 1px solid var(--line);
}
.nav-wrap, .search-strip, .section, .footer-grid { width: min(var(--max), calc(100% - 32px)); margin: 0 auto; }
.nav-wrap { min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 22px; }
.brand-logo { display: inline-flex; align-items: center; gap: 12px; font-weight: 700; letter-spacing: .02em; }
.brand-logo img { border-radius: 14px; box-shadow: 0 14px 34px rgba(0,0,0,.12); }
.brand-logo span { display: grid; line-height: 1.2; }
.brand-logo small { color: var(--muted); font-size: 12px; font-weight: 500; }
.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a { padding: 11px 14px; color: var(--muted); border-radius: 999px; font-size: 14px; transition: .24s ease; }
.main-nav a:hover, .main-nav a.is-active { color: var(--ink); background: rgba(255,255,255,.72); }
.nav-toggle { display: none; border: 1px solid var(--line); border-radius: 999px; background: var(--surface); padding: 9px 14px; }
.search-strip { padding: 0 0 18px; display: grid; gap: 8px; }
.search-strip form { display: flex; gap: 10px; padding: 8px; border: 1px solid var(--line); border-radius: 999px; background: rgba(255,255,255,.74); box-shadow: 0 12px 30px rgba(0,0,0,.04); }
.search-strip input { flex: 1; min-width: 0; border: 0; outline: 0; background: transparent; padding: 10px 14px; }
.search-strip button, .btn { border: 0; cursor: pointer; border-radius: 999px; padding: 11px 18px; transition: .24s ease; }
.search-strip button, .btn.primary { background: var(--ink); color: #fff; }
.btn.ghost { border: 1px solid var(--line); color: var(--ink); background: rgba(255,255,255,.58); }
.search-strip p { margin: 0; color: var(--muted); font-size: 13px; padding-left: 16px; }
.section { padding: 92px 0; }
.hero { min-height: calc(100vh - 112px); display: grid; grid-template-columns: 1fr .92fr; gap: 54px; align-items: center; }
.hero-content h1, .sub-hero h1 { font-size: clamp(42px, 7vw, 88px); line-height: .98; letter-spacing: -.06em; margin: 14px 0 24px; max-width: 850px; }
.hero-content p, .sub-hero p, .section-head p { color: var(--muted); font-size: 17px; max-width: 760px; }
.eyebrow { margin: 0 0 12px; color: var(--accent); font-weight: 700; letter-spacing: .12em; text-transform: uppercase; font-size: 13px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 34px 0 20px; }
.domain-note { font-size: 14px; color: var(--muted); }
.hero-visual { position: relative; }
.hero-visual img, .split-panel img { border-radius: var(--radius-xl); box-shadow: var(--shadow); border: 1px solid rgba(255,255,255,.78); }
.floating-card { position: absolute; right: -18px; bottom: 36px; padding: 18px 22px; border-radius: 22px; background: rgba(255,255,255,.82); backdrop-filter: blur(14px); box-shadow: var(--shadow); display: grid; }
.floating-card strong { font-size: 30px; letter-spacing: -.04em; }
.section-head { display: grid; gap: 8px; margin-bottom: 34px; }
.section-head h2 { margin: 0; font-size: clamp(30px, 4vw, 54px); line-height: 1.08; letter-spacing: -.04em; }
.muted { width: 100%; max-width: none; background: rgba(255,255,255,.42); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.split-panel { display: grid; grid-template-columns: .86fr 1.14fr; gap: 38px; align-items: center; padding: 34px; border-radius: var(--radius-xl); background: rgba(255,255,255,.62); border: 1px solid var(--line); }
.split-panel h3, .split-panel h2 { font-size: clamp(26px, 3vw, 42px); line-height: 1.15; letter-spacing: -.04em; margin-top: 0; }
.service-grid, .video-grid, .testimonial-grid, .stats-grid, .share-grid, .mini-grid { display: grid; gap: 18px; }
.service-grid { grid-template-columns: repeat(3, 1fr); }
.video-grid { grid-template-columns: repeat(3, 1fr); }
.testimonial-grid { grid-template-columns: repeat(3, 1fr); }
.stats-grid { grid-template-columns: repeat(4, 1fr); }
.share-grid { grid-template-columns: repeat(5, 1fr); }
.mini-grid { grid-template-columns: repeat(4, 1fr); }
.service-card, .video-card, .quote-card, .stat-card, .mini-card, .notice-card, .contact-form, .faq-list details, .share-grid button {
    background: rgba(255,255,255,.70);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    box-shadow: 0 14px 44px rgba(18, 16, 12, .05);
}
.service-card, .quote-card, .mini-card, .notice-card { padding: 26px; }
.service-card h3, .video-card h3, .quote-card h3, .mini-card h3 { margin: 10px 0 8px; font-size: 20px; line-height: 1.3; }
.service-card p, .video-card p, .quote-card p, .mini-card p, .notice-card p { color: var(--muted); margin: 0; }
.icon-dot { width: 44px; height: 44px; border-radius: 15px; display: grid; place-items: center; color: var(--ink); background: var(--accent-soft); font-weight: 800; }
.video-card { overflow: hidden; transition: transform .24s ease, box-shadow .24s ease; }
.video-card:hover, .video-card:focus-within { transform: translateY(-4px); box-shadow: var(--shadow); }
.video-media { position: relative; aspect-ratio: 16 / 9; background: #eee6d8; overflow: hidden; }
.video-shell { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0; }
.video-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .34s ease; }
.video-card:hover img { transform: scale(1.04); }
.play-badge { position: absolute; inset: 50% auto auto 50%; transform: translate(-50%, -50%) scale(.9); width: 76px; height: 76px; border-radius: 50%; display: grid; place-items: center; font-size: 13px; font-weight: 800; color: var(--ink); background: rgba(255,255,255,.82); opacity: 0; transition: .24s ease; box-shadow: 0 16px 40px rgba(0,0,0,.16); }
.video-card:hover .play-badge, .video-card:focus .play-badge, .video-card:focus-within .play-badge { opacity: 1; transform: translate(-50%, -50%) scale(1); }
.duration { position: absolute; right: 12px; bottom: 12px; color: #fff; background: rgba(0,0,0,.55); padding: 3px 9px; border-radius: 999px; font-size: 12px; }
.video-body { padding: 22px; }
.metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; padding: 16px 0 0; margin: 18px 0 0; border-top: 1px solid var(--line); list-style: none; }
.metrics li { display: grid; }
.metrics strong { font-size: 17px; letter-spacing: -.02em; }
.metrics span { color: var(--muted); font-size: 12px; }
.stat-card { padding: 28px; display: grid; gap: 6px; }
.stat-card strong { font-size: clamp(34px, 5vw, 62px); letter-spacing: -.06em; }
.stat-card span { color: var(--muted); }
.quote-card span { color: var(--accent); font-size: 13px; }
.faq-list { display: grid; gap: 12px; }
.faq-list details { padding: 20px 24px; }
.faq-list summary { cursor: pointer; font-weight: 800; }
.faq-list p { color: var(--muted); margin-bottom: 0; }
.share-grid button { text-align: left; padding: 22px; cursor: pointer; color: var(--ink); transition: .24s ease; }
.share-grid button:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.share-grid span { display: block; color: var(--muted); font-size: 13px; margin-top: 8px; }
.contact-form { display: grid; gap: 14px; padding: 28px; }
.contact-form input, .contact-form textarea { width: 100%; border: 1px solid var(--line); border-radius: 18px; background: rgba(255,255,255,.78); padding: 14px 16px; outline: 0; }
.contact-form textarea { min-height: 140px; resize: vertical; }
.sub-hero { padding-top: 84px; padding-bottom: 56px; }
.related-columns { padding-top: 20px; }
.site-footer { padding: 58px 0; background: #151515; color: #fff; }
.site-footer .brand-logo img { box-shadow: none; }
.site-footer .brand-logo small, .site-footer p, .site-footer a { color: rgba(255,255,255,.68); }
.footer-grid { display: grid; grid-template-columns: 1.35fr .7fr 1fr; gap: 32px; }
.footer-grid h2 { font-size: 16px; margin: 0 0 12px; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.toast { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%) translateY(20px); background: #151515; color: #fff; border-radius: 999px; padding: 12px 18px; opacity: 0; pointer-events: none; transition: .24s ease; z-index: 50; max-width: calc(100% - 32px); }
.toast.is-visible { opacity: 1; transform: translateX(-50%) translateY(0); }
@media (max-width: 980px) {
    .nav-toggle { display: inline-flex; }
    .main-nav { position: absolute; left: 16px; right: 16px; top: 74px; display: none; flex-direction: column; align-items: stretch; padding: 14px; border: 1px solid var(--line); border-radius: 24px; background: rgba(255,255,255,.94); box-shadow: var(--shadow); }
    .main-nav.is-open { display: flex; }
    .hero, .split-panel, .footer-grid { grid-template-columns: 1fr; }
    .service-grid, .video-grid, .testimonial-grid { grid-template-columns: repeat(2, 1fr); }
    .stats-grid, .share-grid, .mini-grid { grid-template-columns: repeat(2, 1fr); }
    .hero { min-height: auto; padding-top: 64px; }
    .floating-card { right: 18px; }
}
@media (max-width: 640px) {
    .nav-wrap, .search-strip, .section, .footer-grid { width: min(100% - 24px, var(--max)); }
    .section { padding: 62px 0; }
    .hero-content h1, .sub-hero h1 { font-size: 42px; }
    .search-strip form { border-radius: 24px; align-items: stretch; flex-direction: column; }
    .service-grid, .video-grid, .testimonial-grid, .stats-grid, .share-grid, .mini-grid { grid-template-columns: 1fr; }
    .split-panel { padding: 18px; border-radius: 26px; }
    .metrics { grid-template-columns: 1fr 1fr 1fr; }
}
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: .01ms !important; scroll-behavior: auto !important; transition-duration: .01ms !important; }
}