:root {
  --bg: #140d0a;
  --paper: #f5efe4;
  --ink: #27130f;
  --red-1: #5a1411;
  --red-2: #7d201a;
  --red-3: #9c3423;
  --gold-1: #a77423;
  --gold-2: #d5b06b;
  --gold-3: #f2dfb7;
  --stone: #e7dccb;
  --mist: #b6c1cb;
  --shadow: 0 18px 48px rgba(12, 6, 4, 0.22);
  --radius: 28px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top right, rgba(231, 203, 150, 0.18), transparent 30%),
    linear-gradient(180deg, #efe5d4 0%, #f6f1e7 38%, #e7d8c1 100%);
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
.container { width: min(1240px, calc(100% - 32px)); margin: 0 auto; }
.site-header {
  position: sticky; top: 0; z-index: 30;
  background: rgba(19, 11, 8, 0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(242, 223, 183, 0.16);
}
.shell-top {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 24px;
  align-items: center;
  padding: 18px 0 14px;
}
.brand-mark {
  display: flex; align-items: center; gap: 14px;
  color: #fff7ea;
}
.brand-mark img { width: 62px; height: 62px; border-radius: 18px; box-shadow: var(--shadow); }
.brand-mark strong { display: block; font-size: 1.35rem; letter-spacing: 0.04em; }
.brand-mark span { display: block; font-size: 0.92rem; color: rgba(255,247,234,.78); }
.main-nav {
  display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 10px;
}
.nav-link {
  color: rgba(255,247,234,.78);
  border: 1px solid rgba(242, 223, 183, 0.12);
  padding: 10px 14px;
  border-radius: 999px;
  font-size: 0.95rem;
  transition: .28s ease;
}
.nav-link:hover, .nav-link.is-active {
  color: #fffaf2;
  background: linear-gradient(135deg, rgba(167,116,35,.35), rgba(125,32,26,.6));
  border-color: rgba(242,223,183,.4);
}
.search-ribbon {
  display: grid; grid-template-columns: 1.15fr .85fr; gap: 18px;
  padding: 0 0 18px;
}
.fake-search {
  display: grid; grid-template-columns: 1fr 110px;
  background: rgba(245, 239, 228, 0.96);
  border-radius: 20px;
  padding: 8px;
  box-shadow: inset 0 0 0 1px rgba(122,32,26,.08);
}
.fake-search input {
  border: 0; background: transparent; padding: 12px 14px; font-size: 1rem; color: var(--ink);
}
.fake-search input:focus { outline: none; }
.fake-search button {
  border: 0; border-radius: 14px; background: linear-gradient(135deg, var(--gold-1), var(--gold-2));
  color: #2f1a0a; font-weight: 700;
}
.f3cq2b {
  margin: 0; align-self: center; color: rgba(255,247,234,.82); font-size: .96rem; line-height: 1.7;
}
.hero-scene {
  display: grid; grid-template-columns: 1.04fr .96fr; gap: 34px;
  padding: 42px 0 20px;
}
.hero-copy, .wtjlk, .inner-hero-copy, .inner-hero-visual,
.insight-panel, .video-card, .xs50n, .vuyn4y, .qr-card,
.contact-stack, .howto-wrap, .yjviry9q, .office-shot, .howto-photo {
  position: relative;
}
.hero-copy::before, .wtjlk::before, .inner-hero-copy::before, .inner-hero-visual::before,
.insight-panel::before, .video-card::before, .xs50n::before, .vuyn4y::before,
.contact-stack::before, .howto-wrap::before, .yjviry9q::before, .office-shot::before, .howto-photo::before {
  content: ""; position: absolute; inset: 0; border: 1px solid rgba(117, 34, 23, 0.14); border-radius: var(--radius); pointer-events: none;
}
.hero-copy, .inner-hero-copy {
  padding: 40px 34px 36px;
  background: linear-gradient(180deg, rgba(255,248,236,.94), rgba(237,223,203,.92));
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.imlapz3 {
  display: inline-block; padding: 8px 12px; border-radius: 999px; background: rgba(167,116,35,.12);
  color: var(--red-2); font-size: .88rem; letter-spacing: .08em; text-transform: uppercase;
}
h1, h2, h3, .footer-brand strong {
  font-family: "STSong", "Songti SC", "SimSun", serif;
}
h1 { margin: 18px 0 18px; font-size: clamp(2rem, 4vw, 4rem); line-height: 1.14; }
h2 { margin: 12px 0 10px; font-size: clamp(1.5rem, 2.5vw, 2.4rem); line-height: 1.28; }
h3 { margin: 0 0 10px; font-size: 1.28rem; line-height: 1.35; }
p { line-height: 1.85; font-size: 1rem; }
.hero-tags, .tag-line {
  display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px;
}
.hero-tags span, .tag-line span, .meta-line span, .logo-pill {
  padding: 8px 12px; border-radius: 999px; background: rgba(122,32,26,.08); font-size: .88rem;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 24px; }
.btn-primary, .btn-secondary {
  display: inline-flex; align-items: center; justify-content: center; min-height: 50px; padding: 0 20px; border-radius: 999px; font-weight: 700; transition: .25s ease;
}
.btn-primary { background: linear-gradient(135deg, var(--red-2), var(--gold-1)); color: #fff8ef; box-shadow: var(--shadow); }
.btn-secondary { background: rgba(255,255,255,.65); color: var(--red-2); border: 1px solid rgba(117,34,23,.12); }
.btn-primary:hover, .btn-secondary:hover { transform: translateY(-2px); }
.hero-stats {
  margin-top: 26px; display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 14px;
}
.hero-stats article {
  padding: 16px; border-radius: 22px; background: rgba(255,255,255,.62);
}
.hero-stats strong { display: block; font-size: 1.5rem; color: var(--red-2); }
.x42tunfq, .inner-hero-visual, .office-shot, .howto-photo {
  margin: 0; overflow: hidden; border-radius: var(--radius); background: #24130e; box-shadow: var(--shadow);
}
.x42tunfq img, .inner-hero-visual img, .office-shot img, .howto-photo img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.x42tunfq figcaption { padding: 14px 18px 18px; color: #f6e8cc; background: #1a0e0b; }
.kowtw {
  display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 12px; margin-top: 14px;
}
.xs50n, .vuyn4y, .insight-panel, .contact-stack, .yjviry9q {
  padding: 20px; border-radius: var(--radius); background: rgba(255,249,241,.84); box-shadow: var(--shadow);
}
.xs50n span, .section-heading span { font-size: .86rem; letter-spacing: .08em; text-transform: uppercase; color: var(--red-3); }
.xs50n strong { display: block; margin-top: 12px; line-height: 1.6; font-size: 1rem; }
.section-block { padding: 30px 0 18px; }
.section-heading { margin-bottom: 20px; }
.video-grid {
  display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 20px;
}
.video-card {
  overflow: hidden; border-radius: var(--radius); background: rgba(255,250,243,.88); box-shadow: var(--shadow);
}
.video-visual { display: block; position: relative; overflow: hidden; }
.video-visual img {
  width: 100%; aspect-ratio: 16 / 10; object-fit: cover; transform: scale(1.01); transition: transform .35s ease;
}
.video-card:hover .video-visual img { transform: scale(1.08); }
.video-play {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%) scale(.85);
  width: 82px; height: 82px; border-radius: 50%; display: grid; place-items: center;
  background: rgba(20, 13, 10, .66); color: #fff5df; font-size: 1.65rem; opacity: 0; transition: .25s ease;
}
.video-card:hover .video-play { opacity: 1; transform: translate(-50%, -50%) scale(1); }
.video-duration {
  position: absolute; right: 14px; bottom: 14px; padding: 6px 10px; border-radius: 999px;
  background: rgba(12, 8, 7, .72); color: #fff6e3; font-size: .84rem;
}
.video-copy { padding: 18px; }
.meta-line { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; color: #58352b; }
.split-block { display: grid; grid-template-columns: 1.08fr .92fr; gap: 22px; }
.insight-panel img { width: 100%; aspect-ratio: 5 / 4; object-fit: cover; border-radius: 20px; margin-bottom: 16px; }
.feature-grid, .expert-grid, .logo-wall, .contact-grid, .share-row {
  display: grid; gap: 18px;
}
.feature-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
.expert-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
.logo-wall { grid-template-columns: repeat(3, minmax(0,1fr)); }
.contact-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
.share-row { grid-template-columns: repeat(4, minmax(0,1fr)); }
.feature-card, .expert-card, .partner-card, .contact-item, .share-btn, .faq-item, .review-card {
  padding: 20px; border-radius: 24px; background: rgba(255,250,244,.9); box-shadow: var(--shadow); border: 1px solid rgba(122,32,26,.08);
}
.feature-icon {
  width: 56px; height: 56px; display: grid; place-items: center; border-radius: 18px;
  background: linear-gradient(135deg, var(--red-2), var(--gold-1)); color: #fff8e9; font-size: 1.3rem; margin-bottom: 14px;
}
.expert-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 12px; }
.expert-actions a { padding: 8px 12px; border-radius: 999px; background: rgba(122,32,26,.08); color: var(--red-2); font-size: .88rem; }
.logo-wall-section { padding-bottom: 26px; }
.howto-wrap { margin-top: 20px; display: grid; grid-template-columns: 1fr .9fr; gap: 18px; padding: 20px; border-radius: var(--radius); background: linear-gradient(180deg, rgba(89,18,15,.96), rgba(27,13,10,.96)); color: #f8ead0; }
.bcv28x { margin: 12px 0 0; padding-left: 22px; line-height: 1.9; }
.faq-review-grid { display: grid; grid-template-columns: 1.04fr .96fr; gap: 22px; }
.faq-list, .reviews-grid { display: grid; gap: 16px; }
.faq-item summary { list-style: none; cursor: pointer; font-weight: 700; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item p { margin: 12px 0 0; }
.review-card strong { display: block; margin-bottom: 6px; }
.contact-wrap { padding-bottom: 30px; }
.contact-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 18px; }
.mcp-demo {
  margin-top: 18px; padding: 18px; border-radius: 24px; background: linear-gradient(180deg, #1d120f, #381814); color: #f8ebd0;
}
.mcp-nodes { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 10px; margin-top: 14px; }
.mcp-node { padding: 12px; border-radius: 16px; text-align: center; background: rgba(255,255,255,.08); }
.share-btn { text-align: center; font-weight: 700; color: var(--red-2); }
.breadcrumb {
  display: flex; gap: 10px; align-items: center; padding: 22px 0 0; color: #59362c;
}
.inner-hero {
  display: grid; grid-template-columns: 1fr 1fr; gap: 24px; padding: 20px 0 4px;
}
.j3jg2oi0 { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 18px; }
.site-footer {
  margin-top: 24px; background: linear-gradient(180deg, #1b0f0c, #100806); color: #f7ecd8; padding: 28px 0 36px;
}
.footer-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 20px; }
.footer-brand { display: flex; align-items: center; gap: 16px; margin-bottom: 16px; }
.footer-brand img { width: 72px; height: 72px; border-radius: 20px; }
.clgs3r { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 18px; }
.qr-card { padding: 16px; border-radius: 28px; background: rgba(255,255,255,.05); border: 1px solid rgba(242,223,183,.12); }
.qr-card img { border-radius: 18px; margin-bottom: 14px; }
.a7c1ps, .s9k930 { margin: 12px 0 0; color: rgba(247,236,216,.8); }
.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;
}
@media (max-width: 1080px) {
  .hero-scene, .split-block, .faq-review-grid, .contact-layout, .inner-hero, .footer-grid, .shell-top, .search-ribbon, .howto-wrap {
    grid-template-columns: 1fr;
  }
  .video-grid, .logo-wall, .contact-grid, .share-row, .kowtw, .feature-grid, .expert-grid, .hero-stats, .clgs3r, .j3jg2oi0, .mcp-nodes {
    grid-template-columns: repeat(2, minmax(0,1fr));
  }
  .main-nav { justify-content: flex-start; }
}
@media (max-width: 720px) {
  .container { width: min(100% - 24px, 1240px); }
  .video-grid, .logo-wall, .contact-grid, .share-row, .kowtw, .feature-grid, .expert-grid, .hero-stats, .clgs3r, .j3jg2oi0, .mcp-nodes {
    grid-template-columns: 1fr;
  }
  .fake-search { grid-template-columns: 1fr; }
  .fake-search button { min-height: 48px; }
  .hero-copy, .inner-hero-copy, .xs50n, .vuyn4y, .feature-card, .expert-card, .partner-card, .contact-item, .share-btn, .faq-item, .review-card, .insight-panel, .contact-stack, .yjviry9q {
    padding: 18px;
  }
  h1 { font-size: 2rem; }
}