/* 设计提醒：未来杂志派电影版式。保持暗底留白、橙青对比、非对称布局、时间码标签与电影质感。 */
:root {
    --bg: #090d14;
    --panel: rgba(13, 19, 31, 0.88);
    --panel-strong: rgba(11, 16, 26, 0.96);
    --line: rgba(122, 207, 229, 0.24);
    --line-strong: rgba(255, 166, 98, 0.48);
    --text: #edf5fa;
    --muted: #95a7b8;
    --orange: #ff9d54;
    --orange-soft: #ffcf9e;
    --cyan: #77d8ef;
    --cyan-strong: #37c8f1;
    --red: #ff6c6c;
    --card-shadow: 0 18px 40px rgba(0, 0, 0, 0.32);
    --radius: 24px;
    --radius-small: 16px;
    --max: 1240px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: 'Noto Sans SC', sans-serif;
    background:
        radial-gradient(circle at top right, rgba(52, 102, 122, 0.25), transparent 30%),
        radial-gradient(circle at left center, rgba(198, 112, 58, 0.14), transparent 35%),
        linear-gradient(180deg, #091019 0%, #071018 40%, #05080f 100%);
    color: var(--text);
    line-height: 1.7;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, input { font: inherit; }
.container { width: min(var(--max), calc(100% - 32px)); margin: 0 auto; }
.sr-only {
    position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
    overflow: hidden; clip: rect(0, 0, 0, 0); border: 0;
}
.site-shell { position: relative; overflow: hidden; }
.site-shell::before {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    background-image: linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: radial-gradient(circle at center, black 40%, transparent 100%);
    opacity: 0.3;
}
.site-header { position: sticky; top: 0; z-index: 30; backdrop-filter: blur(18px); background: rgba(5, 10, 18, 0.82); border-bottom: 1px solid rgba(119, 216, 239, 0.12); }
.brand-bar {
    display: flex; justify-content: space-between; align-items: center; gap: 20px;
    padding: 18px 0 12px;
}
.brand-lockup { display: flex; align-items: center; gap: 14px; }
.brand-thumb, .brand-logo { border-radius: 18px; background: rgba(255,255,255,0.03); box-shadow: 0 8px 20px rgba(0,0,0,0.35); }
.brand-copy strong {
    display: block; font-family: 'Bebas Neue', sans-serif; font-size: 2rem; letter-spacing: 0.06em; color: var(--orange-soft);
}
.brand-copy em { display: block; font-style: normal; color: var(--muted); font-size: 0.92rem; }
.brand-meta { display: grid; gap: 6px; justify-items: end; }
.signal, .domain-note, .eyebrow, .time-chip, .metric-chip, .tag, .info-pill, .section-kicker, .brand-seal, .share-button {
    border: 1px solid rgba(119, 216, 239, 0.18);
    background: rgba(12, 19, 31, 0.75);
    border-radius: 999px;
    padding: 8px 14px;
    font-size: 0.82rem;
}
.signal { color: var(--cyan); }
.domain-note { color: var(--orange-soft); }
.main-nav {
    display: flex; flex-wrap: wrap; gap: 10px; padding: 0 0 14px;
}
.nav-link {
    padding: 10px 14px; border-radius: 999px; background: rgba(255,255,255,0.02);
    color: #dce9f3; transition: 0.28s ease; border: 1px solid transparent;
}
.nav-link:hover, .nav-link.is-active {
    transform: translateY(-1px); border-color: rgba(255, 157, 84, 0.35); background: rgba(255, 157, 84, 0.08); color: var(--orange-soft);
}
.search-band { display: grid; gap: 8px; padding-bottom: 18px; }
.fake-search {
    display: grid; grid-template-columns: 1fr auto; gap: 12px; padding: 12px;
    background: rgba(255,255,255,0.03); border: 1px solid rgba(119,216,239,0.14); border-radius: 20px;
}
.fake-search input {
    border: 0; background: rgba(255,255,255,0.02); border-radius: 14px; padding: 14px 16px; color: var(--text);
}
.fake-search button {
    border: 0; border-radius: 14px; padding: 0 20px; background: linear-gradient(135deg, var(--orange), #f76a53); color: #06111b; font-weight: 700;
}
.search-tips { margin: 0; color: var(--muted); font-size: 0.86rem; }
.hero {
    position: relative; min-height: 88vh; display: grid; align-items: end; padding: 72px 0 48px;
}
.hero::before {
    content: ''; position: absolute; inset: 0; background:
      linear-gradient(90deg, rgba(4,8,14,0.92) 0%, rgba(5,10,16,0.76) 45%, rgba(6,10,15,0.4) 100%),
      url('../images/tangxinvlog-hero.jpg') center/cover no-repeat;
    z-index: -2;
}
.hero::after {
    content: ''; position: absolute; inset: auto 0 0; height: 180px; background: linear-gradient(180deg, transparent, #04070d 85%); z-index: -1;
}
.hero-grid {
    display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(340px, 0.8fr); gap: 28px; align-items: end;
}
.hero-copy {
    max-width: 760px; padding: 28px; border-left: 2px solid rgba(255,157,84,0.48); background: rgba(6, 10, 16, 0.35); backdrop-filter: blur(6px);
}
.eyebrow, .section-kicker, .brand-seal { display: inline-flex; gap: 8px; align-items: center; color: var(--cyan); text-transform: uppercase; letter-spacing: 0.12em; }
.hero h1, .page-hero h1 {
    margin: 16px 0 18px; font-size: clamp(3rem, 8vw, 5.8rem); line-height: 0.96; font-family: 'Bebas Neue', sans-serif; letter-spacing: 0.04em;
}
.hero-lead, .page-lead { font-size: 1.08rem; max-width: 62ch; color: #d4e4ef; }
.hero-metrics, .tag-row, .video-stats, .mini-metrics, .detail-list, .footer-badges, .share-row {
    display: flex; flex-wrap: wrap; gap: 10px;
}
.metric-chip { color: var(--orange-soft); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 26px; }
.primary-button, .ghost-button, .tool-link, .expert-button {
    display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 18px; border-radius: 999px; font-weight: 700; transition: 0.28s ease;
}
.primary-button { background: linear-gradient(135deg, var(--orange), #ff6d54); color: #061019; }
.ghost-button, .tool-link, .expert-button {
    border: 1px solid rgba(119,216,239,0.22); color: var(--text); background: rgba(255,255,255,0.02);
}
.primary-button:hover, .ghost-button:hover, .tool-link:hover, .expert-button:hover, .share-button:hover { transform: translateY(-2px); box-shadow: var(--card-shadow); }
.hero-stack { display: grid; gap: 16px; align-self: stretch; }
.signal-card, .card-panel, .data-card, .faq-card, .review-card, .expert-card, .guide-card, .contact-card, .company-card, .share-card, .mcp-card, .article-card, .tool-card, .brand-wall-item {
    background: linear-gradient(180deg, rgba(15, 22, 35, 0.94), rgba(10, 15, 24, 0.9));
    border: 1px solid rgba(119,216,239,0.12);
    border-radius: var(--radius);
    box-shadow: var(--card-shadow);
}
.signal-card { padding: 22px; }
.signal-card strong { font-size: 1.2rem; color: var(--orange-soft); }
.signal-card p { color: var(--muted); margin-bottom: 0; }
.section-block { padding: 64px 0; position: relative; }
.section-head { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 18px; align-items: end; margin-bottom: 24px; }
.section-head h2 { margin: 14px 0 10px; font-size: clamp(2rem, 5vw, 3.8rem); line-height: 0.95; font-family: 'Bebas Neue', sans-serif; letter-spacing: 0.04em; }
.section-head p { margin: 0; color: var(--muted); max-width: 70ch; }
.asym-grid {
    display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 22px;
}
.media-panel {
    overflow: hidden; position: relative; min-height: 480px; padding: 22px;
}
.media-panel img { width: 100%; height: 100%; object-fit: cover; border-radius: calc(var(--radius) - 6px); }
.media-panel .overlay-copy {
    position: absolute; inset: auto 18px 18px 18px; padding: 16px 18px; border-radius: 18px; background: rgba(5,10,16,0.68); backdrop-filter: blur(10px);
}
.data-stack, .list-grid, .review-grid, .expert-grid, .guide-grid, .contact-grid, .sub-grid, .tool-grid, .article-grid, .logo-wall { display: grid; gap: 16px; }
.data-stack { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.data-card { padding: 20px; }
.data-card h3, .faq-card h3, .review-card h3, .expert-card h3, .contact-card h3, .company-card h3, .article-card h3, .tool-card h3 { margin-top: 0; margin-bottom: 10px; font-size: 1.2rem; }
.data-card p, .review-card p, .guide-card p, .contact-card p, .company-card p, .article-card p, .tool-card p { margin: 0; color: var(--muted); }
.video-grid {
    display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px;
}
.video-card {
    position: relative; overflow: hidden; border-radius: 28px; min-height: 410px; background: #101722; box-shadow: var(--card-shadow);
}
.video-card img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.45s ease, filter 0.45s ease; }
.video-card::after {
    content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(4,8,13,0.08), rgba(5,10,16,0.35) 45%, rgba(4,8,13,0.92));
}
.video-card:hover img { transform: scale(1.04); filter: saturate(1.08); }
.video-card-content {
    position: absolute; inset: auto 18px 18px 18px; z-index: 1;
}
.play-button {
    position: absolute; top: 50%; left: 50%; width: 84px; height: 84px; border-radius: 50%;
    transform: translate(-50%, -50%) scale(0.88); opacity: 0; z-index: 1;
    border: 1px solid rgba(119,216,239,0.5); background: rgba(5,10,16,0.66); box-shadow: 0 0 0 14px rgba(119,216,239,0.08); transition: 0.32s ease;
}
.play-button::before {
    content: ''; position: absolute; top: 50%; left: 52%; transform: translate(-50%, -50%);
    border-left: 20px solid var(--orange-soft); border-top: 12px solid transparent; border-bottom: 12px solid transparent;
}
.video-card:hover .play-button { opacity: 1; transform: translate(-50%, -50%) scale(1); }
.video-card h3 { margin: 0 0 8px; font-size: 1.3rem; }
.video-card p { margin: 0 0 10px; color: #d4dce8; font-size: 0.95rem; }
.video-stats span, .detail-list span, .mini-metrics span, .tag { color: var(--orange-soft); background: rgba(255, 157, 84, 0.08); }
.page-hero {
    padding: 68px 0 18px;
}
.breadcrumb {
    display: flex; flex-wrap: wrap; gap: 10px; align-items: center; color: var(--muted); font-size: 0.92rem;
}
.breadcrumb strong { color: var(--orange-soft); }
.story-layout {
    display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: 20px;
}
.story-layout .article-card, .story-layout .tool-card { padding: 22px; }
.article-card ul, .tool-card ul, .company-card ul, .contact-card ul { margin: 14px 0 0; padding-left: 18px; color: #d8e6f0; }
.logo-wall { grid-template-columns: repeat(6, minmax(0, 1fr)); }
.brand-wall-item { padding: 24px 14px; text-align: center; font-family: 'Bebas Neue', sans-serif; font-size: 1.8rem; letter-spacing: 0.08em; color: var(--orange-soft); }
.faq-grid, .review-grid, .expert-grid, .guide-grid, .contact-grid, .article-grid, .tool-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.faq-card, .review-card, .expert-card, .guide-card, .contact-card, .company-card, .share-card, .mcp-card, .article-card, .tool-card { padding: 22px; }
.review-card strong, .guide-card strong, .contact-card strong, .article-card strong, .tool-card strong { display: block; margin-bottom: 6px; color: var(--orange-soft); }
.expert-card .expert-top { display: flex; justify-content: space-between; gap: 16px; align-items: start; }
.expert-card .expert-role { color: var(--cyan); }
.expert-actions { display: flex; gap: 10px; margin-top: 14px; }
.info-list { display: grid; gap: 10px; margin-top: 14px; }
.info-list span { color: var(--muted); }
.company-layout { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 22px; }
.company-card img { border-radius: 18px; margin-bottom: 14px; }
.footer-grid {
    display: grid; grid-template-columns: 1.25fr 0.75fr; gap: 20px; padding-bottom: 24px;
}
.site-footer {
    padding: 24px 0 44px; border-top: 1px solid rgba(119,216,239,0.12); background: linear-gradient(180deg, rgba(4,7,12,0.65), rgba(3,5,10,0.95));
}
.footer-brand-panel, .footer-qr-panel { padding: 24px; border-radius: var(--radius); background: rgba(10, 15, 24, 0.82); border: 1px solid rgba(119,216,239,0.1); }
.footer-brand-line { display: flex; gap: 18px; align-items: center; margin-bottom: 18px; }
.footer-qr-panel { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; text-align: center; }
.footer-qr-panel img { margin: 0 auto 12px; border-radius: 20px; background: #fff; padding: 10px; }
.footer-bottom {
    display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding-top: 10px; color: var(--muted); font-size: 0.92rem;
}
.notice-toast {
    position: fixed; right: 18px; bottom: 18px; min-width: 260px; max-width: 380px; padding: 14px 16px; border-radius: 16px;
    background: rgba(6,10,16,0.92); border: 1px solid rgba(119,216,239,0.22); color: var(--text); box-shadow: var(--card-shadow);
    opacity: 0; transform: translateY(10px); pointer-events: none; transition: 0.28s ease; z-index: 60;
}
.notice-toast.is-visible { opacity: 1; transform: translateY(0); }
.reveal { opacity: 0; transform: translateY(18px); transition: 0.6s ease; }
.reveal.is-visible { opacity: 1; transform: none; }
@media (max-width: 1080px) {
    .hero-grid, .asym-grid, .company-layout, .story-layout, .footer-grid, .section-head { grid-template-columns: 1fr; }
    .video-grid, .faq-grid, .review-grid, .expert-grid, .guide-grid, .contact-grid, .article-grid, .tool-grid, .logo-wall { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .brand-meta { justify-items: start; }
    .site-header { position: relative; }
}
@media (max-width: 720px) {
    .container { width: min(var(--max), calc(100% - 22px)); }
    .brand-bar { align-items: flex-start; }
    .brand-lockup { align-items: flex-start; }
    .fake-search { grid-template-columns: 1fr; }
    .video-grid, .faq-grid, .review-grid, .expert-grid, .guide-grid, .contact-grid, .article-grid, .tool-grid, .logo-wall, .data-stack, .footer-qr-panel { grid-template-columns: 1fr; }
    .hero { min-height: auto; padding-top: 42px; }
    .hero-copy, .signal-card, .data-card, .faq-card, .review-card, .expert-card, .guide-card, .contact-card, .company-card, .article-card, .tool-card { padding: 18px; }
    .hero h1, .page-hero h1, .section-head h2 { line-height: 1; }
    .play-button { opacity: 1; transform: translate(-50%, -50%) scale(0.92); }
}