:root {
  --bg: #0b1118;
  --bg-soft: #121b24;
  --panel: rgba(16, 24, 33, 0.86);
  --panel-strong: rgba(11, 17, 24, 0.94);
  --text: #f3ecdf;
  --text-soft: #c8c1b7;
  --gold: #d6a461;
  --teal: #71c4b9;
  --wine: #8b314b;
  --line: rgba(214, 164, 97, 0.24);
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.34);
  --radius: 28px;
  --radius-small: 18px;
  --max: 1260px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(113, 196, 185, 0.12), transparent 28%),
    radial-gradient(circle at top right, rgba(139, 49, 75, 0.22), transparent 24%),
    linear-gradient(180deg, #091017 0%, #0d141d 40%, #111923 100%);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.7;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: radial-gradient(rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 16px 16px;
  opacity: .15;
  pointer-events: none;
}
img { max-width: 100%; display: block; }
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);
  border: 0;
}
.container { width: min(var(--max), calc(100% - 32px)); margin: 0 auto; }
.page-shell { position: relative; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(18px);
  background: rgba(7, 11, 16, 0.75);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.header-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  padding: 18px 0 12px;
}
.brand-lockup { display: flex; align-items: center; gap: 14px; }
.brand-logo { width: 210px; height: auto; }
.main-nav {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
}
.main-nav a {
  padding: 12px 16px;
  border-radius: 999px;
  color: var(--text-soft);
  transition: .24s ease;
  border: 1px solid transparent;
}
.main-nav a:hover, .main-nav a.is-current {
  color: var(--text);
  background: rgba(214, 164, 97, 0.12);
  border-color: rgba(214, 164, 97, 0.28);
}
.header-cta, .hero-actions a, .expert-actions a, .share-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 12px 18px;
  background: linear-gradient(135deg, var(--gold), #f1c07a);
  color: #111;
  font-weight: 700;
  transition: transform .22s ease, box-shadow .22s ease;
  box-shadow: 0 16px 40px rgba(214, 164, 97, .22);
  border: 0;
}
.header-cta:hover, .hero-actions a:hover, .expert-actions a:hover, .share-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 45px rgba(214, 164, 97, .3);
}
.hero-actions .ghost-btn {
  background: transparent;
  color: var(--text);
  border: 1px solid rgba(113, 196, 185, 0.35);
  box-shadow: none;
}
.search-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  padding: 0 0 18px;
}
.search-box {
  display: grid;
  grid-template-columns: 1fr auto;
  background: rgba(18, 27, 36, 0.95);
  border: 1px solid rgba(113, 196, 185, 0.22);
  border-radius: 24px;
  overflow: hidden;
  box-shadow: var(--shadow);
}
.search-box input {
  background: transparent;
  border: 0;
  color: var(--text);
  padding: 16px 20px;
  outline: none;
}
.search-box button {
  border: 0;
  background: linear-gradient(135deg, #1d2d3a, #0f1821);
  color: var(--text);
  padding: 0 24px;
  font-weight: 700;
}
.search-hint {
  color: var(--text-soft);
  font-size: 14px;
  padding-left: 8px;
}
.hero-section, .inner-hero { padding: 42px 0 26px; }
.hero-grid, .inner-hero-grid {
  display: grid;
  grid-template-columns: 1.1fr .95fr;
  gap: 26px;
  align-items: stretch;
}
.panel-card {
  background: linear-gradient(180deg, rgba(18, 27, 36, .94), rgba(10, 16, 22, .9));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}
.panel-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(214, 164, 97, .08), transparent 28%, rgba(113, 196, 185, .08) 100%);
  pointer-events: none;
}
.hero-copy { padding: 40px; }
.eyebrow {
  color: var(--gold);
  letter-spacing: 2px;
  text-transform: uppercase;
  font-size: 12px;
  margin-bottom: 16px;
}
h1, h2, h3, h4, h5, h6 {
  margin: 0 0 14px;
  font-weight: 800;
  letter-spacing: -.02em;
  line-height: 1.16;
}
h1 { font-size: clamp(36px, 5vw, 68px); max-width: 11ch; }
h2 { font-size: clamp(28px, 3vw, 42px); }
h3 { font-size: 22px; }
.hero-text { color: var(--text-soft); font-size: 17px; max-width: 62ch; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin: 26px 0; }
.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.hero-stats div {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 18px;
  padding: 16px;
}
.hero-stats strong { display: block; font-size: 32px; color: var(--gold); }
.hero-stats span { color: var(--text-soft); font-size: 14px; }
.monitor-card img, .image-column img {
  width: 100%;
  height: 100%;
  min-height: 480px;
  object-fit: cover;
  filter: saturate(0.95) contrast(1.04);
}
.monitor-overlay {
  position: absolute;
  left: 22px;
  right: 22px;
  bottom: 22px;
  padding: 18px 18px 16px;
  background: rgba(8, 12, 18, 0.72);
  border: 1px solid rgba(214,164,97,0.18);
  border-radius: 20px;
  backdrop-filter: blur(14px);
}
.monitor-overlay span { display: block; color: var(--teal); margin-bottom: 8px; }
.monitor-overlay strong { display: block; font-size: 20px; margin-bottom: 6px; }
.monitor-overlay p { margin: 0; color: var(--text-soft); }
.section-block { padding: 34px 0; }
.alt-surface { background: linear-gradient(180deg, rgba(11,17,24,0), rgba(255,255,255,0.02), rgba(11,17,24,0)); }
.section-heading {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 20px;
  align-items: start;
  margin-bottom: 22px;
}
.section-heading p {
  margin: 0;
  color: var(--teal);
  text-transform: uppercase;
  letter-spacing: 3px;
  font-size: 12px;
  padding-top: 8px;
}
.video-grid, .expert-grid, .review-grid, .info-grid {
  display: grid;
  gap: 18px;
}
.video-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.info-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.info-grid.compact { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.expert-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.review-grid { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.video-card, .expert-card, .review-card, .info-card {
  background: rgba(18, 27, 36, 0.9);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 24px;
  overflow: hidden;
  position: relative;
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
  box-shadow: 0 10px 35px rgba(0,0,0,.18);
}
.video-card:hover, .expert-card:hover, .review-card:hover, .info-card:hover {
  transform: translateY(-4px);
  border-color: rgba(214,164,97,.34);
  box-shadow: 0 22px 50px rgba(0,0,0,.28);
}
.video-thumb { position: relative; overflow: hidden; }
.video-thumb img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  transition: transform .45s ease;
}
.video-card:hover .video-thumb img { transform: scale(1.05); }
.video-tag, .video-time {
  position: absolute;
  top: 14px;
  padding: 6px 10px;
  font-size: 12px;
  border-radius: 999px;
  background: rgba(8,12,18,.82);
  border: 1px solid rgba(255,255,255,.14);
}
.video-tag { left: 14px; color: var(--gold); }
.video-time { right: 14px; color: var(--text); }
.play-button {
  position: absolute;
  inset: 50% auto auto 50%;
  transform: translate(-50%, -50%) scale(.9);
  width: 78px;
  height: 78px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: rgba(11,17,24,.72);
  border: 1px solid rgba(214,164,97,.42);
  color: var(--gold);
  font-size: 30px;
  opacity: 0;
  transition: .28s ease;
  box-shadow: 0 12px 40px rgba(0,0,0,.24);
}
.video-card:hover .play-button { opacity: 1; transform: translate(-50%, -50%) scale(1); }
.video-body, .expert-card, .review-card, .info-card, .text-panel { padding: 20px; }
.video-body p, .expert-card p, .review-card p, .info-card p, .text-panel p, .text-panel li {
  color: var(--text-soft);
  margin-top: 0;
}
.video-stats {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  color: var(--gold);
  font-size: 13px;
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 14px;
  margin-top: 14px;
}
.mixed-grid, .two-col-feature, .contact-layout {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 20px;
  align-items: start;
}
.two-col-feature.reverse { grid-template-columns: .96fr 1.04fr; }
.image-column { min-height: 100%; }
.json-panel {
  margin-top: 18px;
  border-radius: 24px;
  border: 1px solid rgba(113, 196, 185, 0.22);
  background: linear-gradient(180deg, rgba(10,16,22,.95), rgba(15,23,31,.92));
  box-shadow: var(--shadow);
  overflow: hidden;
}
.json-panel pre {
  margin: 0;
  padding: 20px;
  color: #dce7eb;
  overflow: auto;
  font-size: 13px;
  line-height: 1.7;
  white-space: pre-wrap;
  word-break: break-word;
}
.expert-role { color: var(--gold); font-weight: 700; }
.expert-card ul { margin: 12px 0; padding-left: 18px; color: var(--text-soft); }
.expert-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 18px; }
.partner-wall {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 20px;
}
.partner-wall span {
  display: grid;
  place-items: center;
  padding: 18px;
  border-radius: 18px;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.08);
  font-weight: 700;
  color: var(--text-soft);
}
.howto-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.howto-grid ol { padding-left: 18px; margin: 0; }
.faq-item {
  padding: 14px 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.faq-item summary {
  cursor: pointer;
  font-weight: 700;
  color: var(--text);
  list-style: none;
}
.faq-item p { margin: 12px 0 0; color: var(--text-soft); }
.review-card h3 { color: var(--gold); }
.share-buttons { display: flex; gap: 12px; flex-wrap: wrap; }
.breadcrumb { color: var(--text-soft); margin-top: 18px; }
.inner-side-note { padding: 26px; }
.site-footer {
  padding: 28px 0 60px;
  border-top: 1px solid rgba(255,255,255,0.06);
  background: rgba(7,11,16,.82);
}
.footer-grid { display: grid; grid-template-columns: 1fr auto 1.08fr; gap: 24px; align-items: start; }
.footer-brand { display: flex; gap: 14px; align-items: center; margin-bottom: 18px; }
.footer-brand strong { display: block; font-size: 24px; margin-bottom: 4px; }
.footer-brand p { margin: 0; color: var(--text-soft); }
.footer-meta { margin: 6px 0; color: var(--text-soft); }
.qr-column { display: flex; gap: 16px; }
.qr-card {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 18px;
  padding: 12px;
  text-align: center;
}
.qr-card span { display: block; margin-top: 8px; color: var(--text-soft); font-size: 14px; }
.mcp-box {
  background: rgba(18, 27, 36, 0.9);
  border: 1px solid rgba(113, 196, 185, 0.22);
  border-radius: 24px;
  padding: 20px;
}
.mcp-box pre {
  margin: 0;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
  color: #dce7eb;
}
@media (max-width: 1120px) {
  .header-row, .hero-grid, .inner-hero-grid, .mixed-grid, .two-col-feature, .contact-layout, .footer-grid {
    grid-template-columns: 1fr;
  }
  .review-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .info-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .hero-stats { grid-template-columns: 1fr 1fr 1fr; }
  .qr-column { justify-content: flex-start; }
}
@media (max-width: 780px) {
  .header-row { gap: 16px; }
  .main-nav { justify-content: flex-start; }
  .section-heading { grid-template-columns: 1fr; gap: 8px; }
  .video-grid, .expert-grid, .info-grid, .info-grid.compact, .partner-wall, .howto-grid, .review-grid {
    grid-template-columns: 1fr;
  }
  .hero-copy { padding: 26px; }
  .hero-stats { grid-template-columns: 1fr; }
  .monitor-card img, .image-column img { min-height: 260px; }
  h1 { max-width: none; }
  .qr-column { flex-direction: column; }
  .header-cta { width: 100%; }
  .search-box { grid-template-columns: 1fr; }
  .search-box button { padding: 14px 18px; }
}