/*
Design reminder for this file:
51影讯网采用“电影海报拼贴主义 + 新纪实传媒风”。
坚持不对称布局、胶片颗粒感、信号红与暖金点缀、暗色背景下的高对比信息层次。
所有 hover 与动效都要像切换频道与翻看片场素材，不做廉价炫技。
*/
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@400;500;700;800;900&family=IBM+Plex+Sans:wght@400;500;600;700&display=swap');
:root {
  --bg: #0d0d0f;
  --panel: #17171a;
  --panel-2: #1f1f24;
  --line: rgba(255,255,255,.08);
  --line-strong: rgba(230,74,59,.45);
  --text: #f6efe6;
  --muted: #bda995;
  --accent: #e64a3b;
  --accent-2: #c89a61;
  --soft: #f3e5d4;
  --shadow: 0 20px 60px rgba(0,0,0,.35);
  --max: 1240px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 10% 10%, rgba(230,74,59,.14), transparent 25%),
    radial-gradient(circle at 90% 0%, rgba(200,154,97,.08), transparent 25%),
    linear-gradient(180deg, #101013 0%, #0b0b0d 100%);
  line-height: 1.7;
}
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: .09;
  background-image: linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size: 100% 3px, 3px 100%;
  mix-blend-mode: soft-light;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(calc(100% - 32px), var(--max)); margin: 0 auto; }
.section { padding: 72px 0; position: relative; }
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--soft);
  background: rgba(230,74,59,.09);
  font-size: 13px;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.kicker::before { content: ''; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 16px rgba(230,74,59,.7); }
header.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(16px);
  background: rgba(13,13,15,.86);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: grid; grid-template-columns: 280px 1fr; gap: 24px; align-items: center; padding: 14px 0; }
.brand-lockup { display: flex; align-items: center; gap: 14px; }
.brand-lockup img.icon { width: 40px; height: 40px; }
.brand-lockup img.logo { width: 210px; height: auto; }
.brand-meta strong { display: block; font-size: 19px; line-height: 1.1; }
.brand-meta span { color: var(--muted); font-size: 12px; letter-spacing: .08em; }
.nav-wrap { display: grid; gap: 14px; }
.top-nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px 10px; }
.top-nav a {
  position: relative;
  padding: 10px 14px;
  font-size: 14px;
  color: #eee3d5;
  border: 1px solid transparent;
  transition: .25s ease;
}
.top-nav a::after {
  content: '';
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 6px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  transform: scaleX(0);
  transform-origin: center;
  transition: .25s ease;
}
.top-nav a:hover, .top-nav a.active { border-color: var(--line); background: rgba(255,255,255,.03); }
.top-nav a:hover::after, .top-nav a.active::after { transform: scaleX(1); }
.search-bar {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  padding: 12px;
  background: linear-gradient(135deg, rgba(255,255,255,.05), rgba(255,255,255,.02));
  border: 1px solid var(--line);
  border-radius: 18px;
}
.search-bar input {
  width: 100%;
  border: 0;
  outline: none;
  background: #121216;
  color: var(--text);
  padding: 14px 16px;
  border-radius: 12px;
  font-size: 15px;
}
.search-bar button, .button, .share-btn {
  border: 0;
  background: linear-gradient(135deg, var(--accent), #aa3127);
  color: white;
  padding: 14px 18px;
  border-radius: 12px;
  font-weight: 700;
  cursor: pointer;
  transition: transform .25s ease, box-shadow .25s ease, opacity .25s ease;
  box-shadow: 0 12px 24px rgba(230,74,59,.22);
}
.search-bar button:hover, .button:hover, .share-btn:hover { transform: translateY(-2px); }
.search-note { color: var(--muted); font-size: 13px; min-height: 22px; }
.hero {
  padding: 42px 0 32px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 26px;
  align-items: stretch;
}
.hero-copy {
  background: linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.02));
  border: 1px solid var(--line);
  padding: 30px;
  position: relative;
  overflow: hidden;
  min-height: 540px;
}
.hero-copy::before {
  content: '';
  position: absolute;
  left: -10%; top: -20px;
  width: 220px; height: 220px;
  background: radial-gradient(circle, rgba(230,74,59,.25), transparent 70%);
}
.hero-copy h1 {
  font-size: clamp(40px, 6vw, 72px);
  line-height: .98;
  margin: 18px 0 18px;
  font-weight: 900;
  letter-spacing: -.03em;
}
.hero-copy p { color: #eadfce; font-size: 17px; max-width: 92%; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }
.button.secondary { background: transparent; border: 1px solid var(--line-strong); color: var(--soft); box-shadow: none; }
.hero-stats {
  margin-top: 34px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.stat-box {
  border: 1px solid var(--line);
  background: rgba(255,255,255,.03);
  padding: 14px 16px;
}
.stat-box strong { display: block; font-size: 28px; line-height: 1.1; }
.stat-box span { color: var(--muted); font-size: 13px; }
.hero-media {
  position: relative;
  min-height: 540px;
  border: 1px solid var(--line);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.hero-media img {
  width: 100%; height: 100%; object-fit: cover;
}
.hero-badge {
  position: absolute;
  left: 22px;
  bottom: 22px;
  display: inline-flex;
  gap: 10px;
  padding: 10px 14px;
  border: 1px solid rgba(255,255,255,.2);
  background: rgba(8,8,10,.68);
  backdrop-filter: blur(12px);
}
.hero-badge span { color: #f8ead6; font-weight: 700; }
.hero-badge small { color: #c9b39b; display: block; }
.section-head {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 18px;
  align-items: end;
  margin-bottom: 26px;
}
.section-head h2, .section-head h3 {
  margin: 12px 0 0;
  font-size: clamp(28px, 4vw, 48px);
  line-height: 1.05;
}
.section-head p { margin: 10px 0 0; max-width: 720px; color: var(--muted); }
.eyebrow-data {
  display: grid;
  gap: 5px;
  justify-items: end;
  color: var(--muted);
  font-size: 13px;
}
.grid-3, .grid-4, .card-grid {
  display: grid;
  gap: 18px;
}
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.panel, .video-card, .mini-card, .quote-card, .faq-item, .contact-card, .tool-card, .timeline-card {
  background: linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.02));
  border: 1px solid var(--line);
  position: relative;
  overflow: hidden;
}
.panel::before, .video-card::before, .mini-card::before, .quote-card::before, .faq-item::before, .contact-card::before, .tool-card::before, .timeline-card::before {
  content: '';
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(230,74,59,.45), transparent);
}
.video-card {
  display: grid;
  grid-template-rows: auto 1fr;
  transform: translateY(0);
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.video-card:hover { transform: translateY(-5px); border-color: rgba(230,74,59,.42); box-shadow: 0 18px 36px rgba(0,0,0,.25); }
.video-cover {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: #121216;
}
.video-cover::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 35%, rgba(0,0,0,.65) 100%);
}
.video-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .45s ease; }
.video-card:hover .video-cover img { transform: scale(1.05); }
.play-badge {
  position: absolute;
  inset: 50% auto auto 50%;
  transform: translate(-50%, -50%) scale(.86);
  width: 76px; height: 76px;
  border-radius: 50%;
  display: grid; place-items: center;
  background: rgba(12,12,14,.76);
  border: 1px solid rgba(255,255,255,.18);
  backdrop-filter: blur(8px);
  opacity: 0;
  transition: .25s ease;
  z-index: 2;
}
.play-badge::before {
  content: '';
  margin-left: 4px;
  border-top: 13px solid transparent;
  border-bottom: 13px solid transparent;
  border-left: 19px solid #fff7ef;
}
.video-card:hover .play-badge { opacity: 1; transform: translate(-50%, -50%) scale(1); }
.video-meta { padding: 18px; }
.video-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 10px; }
.video-tags span, .chip, .metric-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  font-size: 12px;
  border-radius: 999px;
  background: rgba(255,255,255,.05);
  color: #f0dfc9;
  border: 1px solid rgba(255,255,255,.06);
}
.metric-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.video-title { font-size: 22px; margin: 0 0 10px; line-height: 1.25; }
.video-title a:hover { color: #ffb2a9; }
.video-desc, .mini-card p, .quote-card p, .faq-item p, .contact-card p, .tool-card p, .timeline-card p { color: var(--muted); margin: 0; }
.dual-showcase {
  display: grid;
  grid-template-columns: 1.08fr .92fr;
  gap: 18px;
}
.showcase-media { min-height: 420px; overflow: hidden; }
.showcase-media img { width: 100%; height: 100%; object-fit: cover; }
.showcase-side { display: grid; gap: 18px; }
.mini-card, .quote-card, .faq-item, .contact-card, .tool-card, .timeline-card { padding: 22px; }
.mini-card h3, .quote-card h3, .faq-item h3, .contact-card h3, .tool-card h3, .timeline-card h3, .tool-card h4 { margin: 0 0 8px; }
.highlight-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 18px;
}
.highlight-strip .panel { padding: 18px; }
.highlight-strip strong { display: block; font-size: 26px; margin-bottom: 6px; }
.content-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.data-list { display: grid; gap: 14px; }
.data-item {
  padding: 18px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.02);
}
.data-item strong { display: block; margin-bottom: 6px; font-size: 18px; }
.timeline { display: grid; gap: 14px; }
.partner-wall {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}
.partner-wall div {
  padding: 18px 16px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.025);
  color: #f0e1d1;
  font-weight: 700;
  text-align: center;
}
.faq-list, .quotes, .contact-grid, .tool-grid { display: grid; gap: 16px; }
.faq-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.quotes { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.contact-grid { grid-template-columns: 1.1fr .9fr; }
.qr-stack { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.qr-stack figure { margin: 0; padding: 16px; background: rgba(255,255,255,.02); border: 1px solid var(--line); }
.qr-stack figcaption { margin-top: 12px; color: var(--muted); font-size: 13px; text-align: center; }
.share-row { display: flex; flex-wrap: wrap; gap: 10px; }
.breadcrumb {
  display: flex; flex-wrap: wrap; gap: 8px;
  margin: 10px 0 24px;
  color: var(--muted);
  font-size: 14px;
}
.breadcrumb span.sep { opacity: .45; }
.page-hero {
  padding: 56px 0 18px;
}
.page-hero-grid {
  display: grid; grid-template-columns: .9fr 1.1fr; gap: 18px; align-items: center;
}
.page-hero-copy { padding: 26px; border: 1px solid var(--line); background: rgba(255,255,255,.03); }
.page-hero-copy h1 { font-size: clamp(34px, 5vw, 58px); line-height: 1.03; margin: 10px 0 16px; }
.page-hero-media { border: 1px solid var(--line); overflow: hidden; min-height: 330px; }
.page-hero-media img { width: 100%; height: 100%; object-fit: cover; }
.two-col { display: grid; grid-template-columns: .86fr 1.14fr; gap: 18px; }
.footer {
  margin-top: 56px;
  border-top: 1px solid var(--line);
  background: rgba(0,0,0,.3);
}
.footer-main { padding: 28px 0 34px; display: grid; grid-template-columns: 1fr auto; gap: 18px; align-items: end; }
.footer-brand { display: flex; align-items: center; gap: 14px; }
.footer-brand img { width: 170px; }
.footer-note { color: var(--muted); }
.footer small { color: var(--muted); }
.notice-line {
  margin-top: 16px;
  padding: 12px 14px;
  border-left: 3px solid var(--accent);
  background: rgba(230,74,59,.07);
  color: #f1ddca;
}
.code-box {
  white-space: pre-wrap;
  font-size: 12px;
  color: #e7dacb;
  background: rgba(255,255,255,.02);
  border: 1px solid var(--line);
  padding: 16px;
}
.json-block { display: none; }
@media (max-width: 1100px) {
  .header-inner, .hero-grid, .dual-showcase, .contact-grid, .page-hero-grid, .two-col, .content-columns { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .grid-3, .quotes { grid-template-columns: 1fr 1fr; }
  .highlight-strip { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .section-head { grid-template-columns: 1fr; }
  .eyebrow-data { justify-items: start; }
}
@media (max-width: 760px) {
  .grid-4, .grid-3, .faq-list, .quotes, .qr-stack, .highlight-strip, .partner-wall, .card-grid { grid-template-columns: 1fr; }
  .hero-copy, .hero-media { min-height: auto; }
  .hero-copy h1 { font-size: 38px; }
  .top-nav { justify-content: flex-start; }
  .hero-stats { grid-template-columns: 1fr; }
  .footer-main { grid-template-columns: 1fr; }
}