/* Design Philosophy: 新自然主义电影海报风；像一本雷雨前花园中的植物影像刊物，沉静、戏剧化、专业。 */
:root {
  --bg: #0f130f;
  --bg-soft: #151d17;
  --panel: rgba(27, 33, 28, 0.82);
  --panel-strong: rgba(18, 22, 18, 0.92);
  --line: rgba(193, 205, 185, 0.16);
  --text: #edf1e7;
  --muted: #b9c1b1;
  --gold: #d2b171;
  --moss: #8da17c;
  --fog: #e6ddca;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
  --radius: 22px;
  --radius-sm: 14px;
  --max: 1240px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(114, 132, 114, 0.22), transparent 34%),
    linear-gradient(180deg, #101511 0%, #111610 35%, #0a0d0a 100%);
  line-height: 1.7;
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.noise-cluster {
  position: absolute;
  left: -99999px;
  top: -99999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
}

.site-shell {
  position: relative;
  width: min(calc(100% - 24px), var(--max));
  margin: 0 auto;
  padding: 22px 0 60px;
}

.site-header,
.section,
.site-footer,
.inner-hero {
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  margin-bottom: 24px;
  padding: 18px 20px;
  border-radius: 24px;
  background: rgba(16, 20, 17, 0.86);
}

.brand-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.brand-copy {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
  color: var(--muted);
  font-size: 13px;
  text-align: right;
}

.brand-copy strong {
  font-family: "Noto Serif SC", "Source Han Serif SC", serif;
  font-size: 16px;
  color: var(--fog);
  letter-spacing: 2px;
}

.top-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  padding: 14px 0 10px;
  font-size: 14px;
}

.top-nav a {
  color: #dde4d6;
  padding: 6px 0;
  border-bottom: 1px solid transparent;
  transition: color .25s ease, border-color .25s ease;
}

.top-nav a:hover,
.top-nav a:focus-visible { color: var(--gold); border-color: rgba(210, 177, 113, 0.6); }

.search-strip {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px 20px;
  align-items: center;
  padding-top: 10px;
}

.search-strip p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.demo-search {
  display: flex;
  gap: 10px;
  min-width: 0;
}

.demo-search input {
  flex: 1;
  min-width: 0;
  border-radius: 999px;
  border: 1px solid rgba(210, 177, 113, 0.24);
  background: rgba(255,255,255,0.04);
  color: var(--text);
  padding: 12px 16px;
}

.demo-search button,
.hero-actions a,
.share-row button,
.button-row a {
  border: 0;
  border-radius: 999px;
  background: linear-gradient(135deg, #d0b06c, #7d936e);
  color: #11150f;
  padding: 12px 18px;
  font-weight: 700;
  transition: transform .25s ease, box-shadow .25s ease, opacity .25s ease;
  box-shadow: 0 10px 30px rgba(119, 139, 107, 0.22);
}

.demo-search button:hover,
.hero-actions a:hover,
.share-row button:hover,
.button-row a:hover { transform: translateY(-2px); box-shadow: 0 14px 32px rgba(119, 139, 107, 0.28); }

.hero {
  display: grid;
  grid-template-columns: 1.18fr .82fr;
  gap: 24px;
  align-items: stretch;
  margin-bottom: 24px;
}

.hero-media,
.hero-copy,
.aside-visual,
.inner-copy,
.inner-media { position: relative; overflow: hidden; border-radius: 28px; }

.hero-media {
  min-height: 520px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.hero-media::after,
.inner-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.08) 0%, rgba(3,8,5,0.56) 100%);
  pointer-events: none;
}

.hero-media img,
.inner-media img { width: 100%; height: 100%; object-fit: cover; transform: scale(1.02); }

.hero-copy {
  padding: 44px 38px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(23,28,23,0.88), rgba(14,18,14,0.92));
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.eyebrow,
.section-head p,
.breadcrumbs {
  margin: 0 0 12px;
  color: var(--gold);
  letter-spacing: 2px;
  font-size: 12px;
  text-transform: uppercase;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 12px;
  font-family: "Noto Serif SC", "Source Han Serif SC", serif;
  font-weight: 700;
  line-height: 1.2;
}

h1 { font-size: clamp(2.3rem, 4vw, 4.4rem); }
h2 { font-size: clamp(1.65rem, 2.8vw, 2.7rem); }
h3 { font-size: 1.18rem; }
h5 { margin-top: 16px; font-size: 1rem; color: var(--fog); }
h6 { margin-top: 10px; font-size: .9rem; color: var(--muted); font-weight: 600; }
p { margin: 0 0 14px; }

.hero-actions,
.button-row,
.share-row { display: flex; flex-wrap: wrap; gap: 12px; }

.hero-actions .ghost,
.button-row a:last-child {
  background: transparent;
  color: var(--fog);
  border: 1px solid rgba(230, 221, 202, 0.25);
  box-shadow: none;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 18px;
}

.hero-stats div,
.article-card,
.contact-card,
.review-card,
.feature-card,
.step-card,
.expert-card,
.json-panel,
.faq-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255,255,255,0.03);
  padding: 16px;
}

.hero-stats dt,
.video-copy dt { color: var(--muted); font-size: 13px; }
.hero-stats dd,
.video-copy dd { margin: 0; font-weight: 700; color: var(--fog); }

.section {
  margin-bottom: 24px;
  padding: 28px;
  border-radius: 28px;
}

.intro-band,
.split-section { display: grid; grid-template-columns: 1.12fr .88fr; gap: 24px; align-items: start; }
.topic-links,
.partner-wall,
.tag-cloud { display: flex; flex-wrap: wrap; gap: 10px; }

.topic-links a,
.partner-wall span,
.tag-cloud span,
.tag-row span {
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(210, 177, 113, 0.16);
  color: #dfe5d7;
  font-size: 13px;
}

.video-grid,
.card-grid,
.expert-grid,
.faq-grid,
.review-grid,
.step-grid,
.json-stack,
.contact-grid {
  display: grid;
  gap: 18px;
}

.video-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card-grid.compact { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.expert-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.faq-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.review-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.step-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.json-stack { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.contact-grid { grid-template-columns: 1.2fr .8fr; }

.video-card {
  display: grid;
  grid-template-columns: .98fr 1.02fr;
  gap: 16px;
  padding: 16px;
  border-radius: 26px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(22,27,23,0.84), rgba(15,18,15,0.88));
  overflow: hidden;
}

.video-thumb {
  position: relative;
  min-height: 230px;
  border-radius: 20px;
  overflow: hidden;
  display: block;
}

.video-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .45s ease; }
.video-card:hover .video-thumb img { transform: scale(1.06); }

.badge,
.duration,
.play-icon {
  position: absolute;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.badge {
  top: 14px;
  left: 14px;
  padding: 7px 10px;
  background: rgba(17, 21, 15, 0.78);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 999px;
  font-size: 12px;
}

.duration {
  right: 14px;
  bottom: 14px;
  min-width: 58px;
  padding: 7px 10px;
  background: rgba(17, 21, 15, 0.82);
  border-radius: 999px;
  font-size: 12px;
}

.play-icon {
  left: 50%;
  top: 50%;
  width: 72px;
  height: 72px;
  margin-left: -36px;
  margin-top: -36px;
  border-radius: 50%;
  background: rgba(237, 241, 231, 0.18);
  border: 1px solid rgba(255,255,255,0.3);
  font-size: 26px;
  color: #fff;
  opacity: 0;
  transform: scale(.92);
  transition: opacity .25s ease, transform .25s ease;
  backdrop-filter: blur(8px);
}

.video-card:hover .play-icon,
.video-card:focus-within .play-icon { opacity: 1; transform: scale(1); }

.video-copy dl {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin: 14px 0 0;
}

.video-copy dl div { padding-top: 10px; border-top: 1px dashed rgba(255,255,255,0.12); }
.compact-card, .feature-card, .step-card { min-height: 100%; }
.step-card span {
  display: inline-flex;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
  border-radius: 50%;
  background: rgba(210, 177, 113, 0.12);
  color: var(--gold);
  font-family: "Noto Serif SC", serif;
  font-size: 20px;
}

.aside-visual img,
.contact-card.wide img { border-radius: 22px; margin-bottom: 16px; }
.community-panel { display: grid; grid-template-columns: 1fr .9fr; gap: 18px; }
.bullet-list { margin: 0; padding-left: 18px; }
.expert-role,
.review-role { color: var(--gold); font-size: 13px; }
.expert-card ul,
.contact-card ul,
.contact-inline { margin: 12px 0 0; padding-left: 18px; color: var(--muted); }
.button-row { margin-top: 14px; }
.alt-surface { background: linear-gradient(180deg, rgba(21,27,22,0.95), rgba(15,18,15,0.96)); }
.json-panel summary,
.mcp-box summary,
.faq-item summary { cursor: pointer; font-weight: 700; color: var(--fog); }
.json-panel pre,
.mcp-box pre { margin: 14px 0 0; overflow: auto; white-space: pre-wrap; color: #d5ddce; font-size: 12px; }

.site-footer {
  padding: 28px;
  border-radius: 28px;
  background: var(--panel-strong);
}

.footer-top {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 24px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.footer-qrs { display: flex; flex-wrap: wrap; gap: 18px; justify-content: flex-end; }
.footer-qrs figure { margin: 0; text-align: center; color: var(--muted); }
.share-row { margin: 18px 0; }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 18px;
  color: var(--muted);
  font-size: 14px;
}

.inner-shell .site-header { position: relative; }
.inner-hero {
  display: grid;
  grid-template-columns: .95fr 1.05fr;
  gap: 24px;
  margin-bottom: 24px;
  padding: 28px;
  border-radius: 28px;
}
.inner-copy { display: flex; flex-direction: column; justify-content: center; }
.inner-media { min-height: 360px; border: 1px solid var(--line); }
.breadcrumbs { display: flex; gap: 8px; align-items: center; text-transform: none; letter-spacing: 0; }

.toast {
  position: fixed;
  right: 16px;
  bottom: 16px;
  max-width: min(90vw, 360px);
  padding: 14px 16px;
  border-radius: 18px;
  background: rgba(14,18,14,0.92);
  border: 1px solid rgba(210,177,113,0.24);
  box-shadow: var(--shadow);
  color: var(--fog);
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: opacity .25s ease, transform .25s ease;
  z-index: 60;
}
.toast.show { opacity: 1; transform: translateY(0); }

@media (max-width: 1080px) {
  .hero,
  .split-section,
  .intro-band,
  .community-panel,
  .contact-grid,
  .inner-hero,
  .footer-top { grid-template-columns: 1fr; }
  .card-grid.compact,
  .step-grid,
  .review-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 780px) {
  .site-shell { width: min(calc(100% - 16px), var(--max)); padding-top: 14px; }
  .site-header, .section, .site-footer, .inner-hero { padding: 18px; border-radius: 22px; }
  .brand-wrap { align-items: flex-start; flex-direction: column; }
  .brand-copy { align-items: flex-start; text-align: left; }
  .search-strip { grid-template-columns: 1fr; }
  .demo-search { flex-direction: column; }
  .video-grid,
  .card-grid,
  .expert-grid,
  .faq-grid,
  .review-grid,
  .step-grid,
  .json-stack { grid-template-columns: 1fr; }
  .video-card { grid-template-columns: 1fr; }
  .hero-copy { padding: 24px 20px; }
  .hero-stats { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; }
  .footer-qrs { justify-content: flex-start; }
}