:root {
  --bg: #fbf8f2;
  --bg-soft: #f4efe6;
  --card: rgba(255,255,255,0.86);
  --text: #2b241c;
  --muted: #73675a;
  --line: rgba(87, 72, 54, 0.12);
  --gold: #b99863;
  --gold-deep: #8a6a3e;
  --shadow: 0 20px 50px rgba(81, 65, 39, 0.12);
  --radius: 24px;
  --radius-sm: 18px;
  --container: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Noto Sans SC', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background:
    radial-gradient(circle at top right, rgba(214, 189, 135, 0.18), transparent 25%),
    linear-gradient(180deg, #fffefb 0%, var(--bg) 30%, #f8f3ea 100%);
  color: var(--text);
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(calc(100% - 32px), var(--container)); margin: 0 auto; }
.section { padding: 92px 0; position: relative; }
.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold-deep);
  font-weight: 700;
  margin: 0 0 14px;
}
.section-kicker::before {
  content: '';
  width: 28px;
  height: 1px;
  background: linear-gradient(90deg, var(--gold), transparent);
}
.section-heading { max-width: 760px; margin-bottom: 34px; }
.section-heading.center { text-align: center; margin-inline: auto; }
.section-heading h2, .intro-band h2, .showcase-copy h2, .about-main h2, .contact-card h2 {
  margin: 0;
  font-size: clamp(28px, 4vw, 48px);
  line-height: 1.16;
}
.section-heading p:last-child,
.intro-band p,
.showcase-copy p,
.about-main p,
.contact-card p { color: var(--muted); line-height: 1.9; }
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  transition: background .3s ease, backdrop-filter .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.site-header.scrolled {
  background: rgba(255, 253, 249, 0.86);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(135, 111, 73, 0.12);
  box-shadow: 0 8px 30px rgba(54, 42, 21, 0.08);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 84px;
  gap: 16px;
}
.brand { display:flex; align-items:center; gap:16px; }
.brand-logo-frame {
  width: 76px;
  height: 76px;
  padding: 8px;
  border-radius: 20px;
  background: linear-gradient(145deg, #111111 0%, #020202 100%);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  overflow: hidden;
  box-shadow: 0 12px 28px rgba(0,0,0,.20), inset 0 0 0 1px rgba(220,183,103,.10);
}
.brand-logo {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  display: block;
  border-radius: 0;
  filter: drop-shadow(0 2px 5px rgba(216,176,91,.22));
}
.brand-mark {
  width: 44px; height: 44px; border-radius: 14px;
  display:grid; place-items:center;
  font-weight: 800; color:white;
  background: linear-gradient(135deg, #d5bc88, #8c6834);
  box-shadow: 0 14px 28px rgba(153, 118, 60, 0.26);
}
.brand-name { font-weight: 800; font-size: 20px; line-height: 1.1; }
.brand-sub { font-size: 13px; color: rgba(36,29,22,0.72); margin-top: 6px; }
.nav { display:flex; align-items:center; gap:28px; }
.nav a { font-size: 15px; color: rgba(30,25,20,0.86); }
.nav a:hover { color: var(--gold-deep); }
.nav-cta {
  padding: 12px 18px;
  border-radius: 999px;
  background: linear-gradient(135deg, #d8bc84, #9b7642);
  color: white !important;
  box-shadow: 0 12px 22px rgba(163, 126, 68, 0.28);
}
.menu-toggle {
  display:none; border:none; background:rgba(255,255,255,0.72);
  width:44px; height:44px; border-radius:12px; font-size:24px; cursor:pointer;
}
.hero { min-height: 100vh; position:relative; overflow:hidden; }
.hero-slider, .hero-overlay {
  background:
    linear-gradient(90deg, rgba(18,13,8,0.62) 0%, rgba(18,13,8,0.38) 48%, rgba(18,13,8,0.18) 100%),
    linear-gradient(180deg, rgba(18,13,8,0.12) 0%, rgba(18,13,8,0.32) 100%);
}
.slide {
  position:absolute; inset:0;
  background-size: cover;
  background-position: center;
  opacity:0;
  transform: scale(1.06);
  transition: opacity 1s ease, transform 6s ease;
}
.slide.active { opacity:1; transform: scale(1); }
.hero-overlay {
  background:
    linear-gradient(90deg, rgba(20,16,11,0.36) 0%, rgba(20,16,11,0.18) 36%, rgba(20,16,11,0.12) 100%),
    linear-gradient(180deg, rgba(255,255,255,0.10) 0%, rgba(11,8,4,0.22) 100%);
}
.hero-content {
  position:relative; z-index:2;
  min-height:100vh;
  display:flex; flex-direction:column; justify-content:center;
  color:white;
  padding-top:100px;
}
.eyebrow {
  margin:0 0 18px; font-size:clamp(20px, 2.2vw, 32px); letter-spacing:.10em; text-transform:uppercase; font-weight:700;
  color: rgba(255,255,255,0.92);
}
.hero-title {
  margin:0;
  width: fit-content;
  max-width: 760px;
  padding: 22px 28px 24px;
  border-left: 4px solid rgba(226,195,127,0.95);
  border-radius: 0 18px 18px 0;
  background: linear-gradient(90deg, rgba(12,9,6,0.62), rgba(12,9,6,0.18));
  backdrop-filter: blur(7px);
  -webkit-backdrop-filter: blur(7px);
  font-size: clamp(48px, 7.3vw, 88px);
  line-height: 1.06;
  font-weight: 800;
  color: #fff;
  letter-spacing: .06em;
  text-shadow: 0 4px 18px rgba(0,0,0,0.72);
}
.hero-title span {
  display:block;
  white-space:nowrap;
}
.hero-subtitle {
  margin: 22px 0 0;
  max-width: 760px;
  font-size: clamp(16px, 2vw, 22px);
  line-height: 1.95;
  color: rgba(255,255,255,0.94);
  padding: 12px 16px;
  border-radius: 12px;
  background: rgba(12,9,6,0.28);
  backdrop-filter: blur(5px);
}
.hero-actions { display:flex; gap:14px; margin-top:30px; flex-wrap:wrap; }
.btn {
  display:inline-flex; align-items:center; justify-content:center;
  min-width:140px; padding:15px 22px; border-radius:999px;
  font-weight:700; transition: transform .25s ease, box-shadow .25s ease, background .25s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  background: linear-gradient(135deg, #dbc287, #a67a42);
  color:#fff;
  box-shadow: 0 16px 30px rgba(163, 126, 68, 0.30);
}
.btn-secondary {
  background: rgba(255,255,255,0.16);
  border: 1px solid rgba(255,255,255,0.38);
  color: white;
  backdrop-filter: blur(14px);
}
.slider-dots {
  display:flex; gap:10px; margin-top:42px;
}
.slider-dot {
  width:12px; height:12px; border-radius:50%;
  border:1px solid rgba(255,255,255,0.66); cursor:pointer;
  background: rgba(255,255,255,0.26); transition: .25s ease;
}
.slider-dot.active { width:34px; border-radius:999px; background:white; }
.grid-4 {
  display:grid; grid-template-columns: repeat(4, 1fr); gap:20px;
}
.stats { margin-top: -58px; position:relative; z-index:3; }
.stat-card, .info-card, .business-card, .value-card, .news-card, .contact-card, .map-card {
  background: var(--card);
  backdrop-filter: blur(18px);
  border: 1px solid rgba(153, 128, 82, 0.14);
  box-shadow: var(--shadow);
  border-radius: var(--radius);
}
.stat-card { padding: 32px 26px; }
.stat-number { font-size: clamp(30px, 4vw, 52px); font-weight:800; color: var(--gold-deep); }
.stat-label { margin-top:10px; color: var(--muted); }
.intro-band { padding-top: 36px; }
.intro-band-inner {
  display:grid; grid-template-columns: 1.1fr 1fr; gap:24px; align-items:center;
  padding: 34px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(255,255,255,0.9), rgba(245,236,219,0.88));
  border: 1px solid rgba(175, 146, 93, 0.15);
  box-shadow: var(--shadow);
}
.adv-grid, .business-grid, .news-grid {
  display:grid; gap:20px;
}
.adv-grid { grid-template-columns: repeat(3, 1fr); }
.info-card { padding: 26px; }
.icon {
  width: 42px; height: 42px; border-radius: 14px;
  display:grid; place-items:center; font-weight:800; color:white;
  background: linear-gradient(135deg, #d7be88, #9d7946);
  margin-bottom: 16px;
}
.info-card h3, .business-card h3, .timeline-item h3, .value-card h3, .news-card h3 { margin:0 0 10px; font-size: 22px; }
.info-card p, .business-card p, .timeline-item p, .value-card p, .news-card p { margin:0; color: var(--muted); line-height:1.8; }
.business-grid { grid-template-columns: repeat(4, 1fr); }
.business-card { overflow:hidden; }
.business-card img { width:100%; height:210px; object-fit:cover; }
.business-card-body { padding:22px; min-height: 170px; }
.business-card-body.no-image {
  display:flex; flex-direction:column; justify-content:center;
  background: linear-gradient(135deg, rgba(255,255,255,0.98), rgba(246,239,225,0.96));
}
.highlight-card { background: linear-gradient(135deg, rgba(255,247,229,0.96), rgba(238,225,198,0.96)); }
.showcase-grid, .about-grid, .contact-grid {
  display:grid; gap:30px; align-items:center;
}
.showcase-grid { grid-template-columns: 1.02fr .98fr; }
.showcase-media img {
  width:100%; height:100%; max-height: 620px; object-fit: cover;
  border-radius: 28px; box-shadow: var(--shadow);
}
.bullet-list { list-style:none; padding:0; margin:22px 0 0; display:grid; gap:12px; }
.bullet-list li {
  padding-left: 20px; position:relative; color: var(--text);
}
.bullet-list li::before {
  content:''; width:8px; height:8px; border-radius:50%;
  position:absolute; left:0; top:10px;
  background: linear-gradient(135deg, #d2b87e, #9e7a47);
}
.timeline {
  display:grid; grid-template-columns: repeat(5, 1fr); gap:16px;
}
.timeline-item {
  position:relative;
  padding: 30px 22px;
  background: rgba(255,255,255,0.82);
  border:1px solid var(--line);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
}
.timeline-step {
  width:54px; height:54px; border-radius:50%; display:grid; place-items:center;
  background: linear-gradient(135deg, #e0c996, #a77b42); color:white; font-weight:800; margin-bottom:18px;
}
.about-grid { grid-template-columns: 1.1fr .9fr; }
.about-side { display:grid; gap:18px; }
.value-card { padding:24px; }
.pill-grid {
  display:flex; flex-wrap:wrap; justify-content:center; gap:14px;
}
.pill-grid span {
  display:inline-flex; align-items:center; justify-content:center;
  padding: 14px 18px; border-radius:999px;
  background: rgba(255,255,255,0.9); border:1px solid rgba(172, 144, 93, 0.18);
  box-shadow: 0 10px 20px rgba(93, 76, 46, 0.08);
  font-weight: 600;
}
.news-grid { grid-template-columns: repeat(3, 1fr); }
.news-card { padding: 28px; }
.news-tag {
  display:inline-block; margin:0 0 14px; font-size: 12px; letter-spacing: .14em; text-transform: uppercase;
  color: var(--gold-deep); font-weight: 700;
}
.contact-grid { grid-template-columns: .95fr 1.05fr; }
.contact-card, .map-card { padding: 34px; height:100%; }
.contact-list { display:grid; gap:18px; margin-top:24px; }
.contact-list span { display:block; color: var(--muted); font-size:14px; margin-bottom:6px; }
.contact-list strong { line-height:1.7; }
.map-placeholder {
  min-height: 360px;
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(250,246,238,0.92), rgba(239,229,210,0.92));
  border: 1px dashed rgba(160,127,71,0.32);
  display:flex; flex-direction:column; align-items:center; justify-content:center; text-align:center; gap:14px; padding:30px;
}
.site-footer {
  padding: 28px 0;
  border-top: 1px solid rgba(125,103,70,0.12);
  background: rgba(255,255,255,0.62);
}
.footer-inner {
  display:flex; justify-content:space-between; gap:20px; align-items:center;
}
.footer-inner p { margin: 6px 0 0; color: var(--muted); }
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.fade-up { opacity:0; transform: translateY(24px); animation: fadeUp .8s ease forwards; }
.delay-1 { animation-delay: .15s; }
.delay-2 { animation-delay: .3s; }
.delay-3 { animation-delay: .45s; }
@keyframes fadeUp { to { opacity:1; transform: translateY(0); } }
@media (max-width: 1100px) {
  .grid-4, .adv-grid, .business-grid, .timeline, .news-grid { grid-template-columns: repeat(2, 1fr); }
  .showcase-grid, .about-grid, .contact-grid, .intro-band-inner { grid-template-columns: 1fr; }
}
@media (max-width: 840px) {
  .menu-toggle { display:block; }
  .nav {
    position:absolute; top:84px; right:16px; left:16px;
    background: rgba(255,253,249,0.96);
    border:1px solid rgba(150,122,74,0.16);
    border-radius: 22px;
    box-shadow: var(--shadow);
    padding:18px;
    display:none;
    flex-direction:column; align-items:flex-start; gap:16px;
  }
  .nav.open { display:flex; }
  .hero-title { max-width: 100%; }
  .stats { margin-top: -36px; }
}
@media (max-width: 640px) {
  .section { padding: 72px 0; }
  .grid-4, .adv-grid, .business-grid, .timeline, .news-grid { grid-template-columns: 1fr; }
  .header-inner { min-height: 76px; }
  .hero-content { padding-top: 92px; }
  .hero-actions { flex-direction:column; align-items:flex-start; }
  .btn { width:100%; }
  .slider-dots { margin-top: 28px; }
  .stat-card { padding: 26px 22px; }
  .contact-card, .map-card, .intro-band-inner { padding: 24px; }
  .footer-inner { flex-direction:column; align-items:flex-start; }
}

@media (max-width: 640px) {
  .hero-title {
    padding: 16px 18px 18px;
    font-size: clamp(42px, 15vw, 64px);
    letter-spacing: .04em;
  }
  .hero-title span { white-space: normal; }
}

/* V2.2 refinements */
.hero-title {
  font-size: clamp(42px, 6.2vw, 76px);
}
.honors-section {
  background: linear-gradient(180deg, rgba(247,241,230,0.72), rgba(255,255,255,0.46));
}
.honors-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}
.certificate-card {
  position: relative;
  overflow: hidden;
  min-height: 300px;
  padding: 42px;
  border-radius: var(--radius);
  border: 1px solid rgba(153, 128, 82, 0.22);
  background:
    linear-gradient(135deg, rgba(255,255,255,0.97), rgba(245,236,218,0.94));
  box-shadow: var(--shadow);
}
.certificate-card::after {
  content: '';
  position: absolute;
  width: 180px;
  height: 180px;
  right: -55px;
  bottom: -70px;
  border: 1px solid rgba(185,152,99,0.24);
  border-radius: 50%;
  box-shadow: 0 0 0 20px rgba(185,152,99,0.06), 0 0 0 40px rgba(185,152,99,0.04);
}
.certificate-seal {
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: linear-gradient(135deg, #d9bf89, #94703d);
  color: #fff;
  font-weight: 800;
  font-size: 24px;
  margin-bottom: 24px;
}
.certificate-label {
  color: var(--gold-deep);
  font-size: 13px;
  letter-spacing: .15em;
  font-weight: 700;
  margin: 0 0 10px;
}
.certificate-card h3 {
  font-size: clamp(24px, 3vw, 34px);
  margin: 0 0 18px;
}
.certificate-card p:not(.certificate-label) {
  color: var(--muted);
  line-height: 1.8;
  margin: 5px 0;
}
.wechat-contact {
  padding-top: 2px;
}
.wechat-qr {
  width: min(100%, 250px);
  margin-top: 14px;
  border-radius: 16px;
  border: 1px solid rgba(153,128,82,.16);
  box-shadow: 0 14px 34px rgba(81,65,39,.12);
}
.wechat-contact small {
  display: block;
  margin-top: 10px;
  color: var(--muted);
}
.contact-list a:hover {
  color: var(--gold-deep);
}
@media (max-width: 700px) {
  .honors-grid { grid-template-columns: 1fr; }
  .certificate-card { min-height: 260px; padding: 30px 24px; }
  .hero-title { font-size: clamp(36px, 13vw, 54px); }
}

/* V2.3 企业证书轮播 */
.certificate-slider { position:relative; max-width:1080px; margin:34px auto 0; padding:24px 78px 58px; border-radius:28px; background:linear-gradient(145deg,rgba(255,255,255,.96),rgba(247,241,226,.92)); border:1px solid rgba(177,135,49,.22); box-shadow:0 24px 70px rgba(77,57,18,.12); }
.certificate-stage { position:relative; height:min(650px,63vw); min-height:390px; overflow:hidden; border-radius:18px; background:#f3efe5; }
.certificate-slide { position:absolute; inset:0; margin:0; opacity:0; transform:translateX(24px) scale(.985); transition:opacity .65s ease,transform .65s ease; pointer-events:none; display:flex; flex-direction:column; align-items:center; justify-content:center; }
.certificate-slide.active { opacity:1; transform:translateX(0) scale(1); pointer-events:auto; }
.certificate-slide img { width:100%; height:calc(100% - 54px); object-fit:contain; display:block; padding:10px; }
.certificate-slide figcaption { height:54px; width:100%; display:flex; align-items:center; justify-content:center; font-size:19px; font-weight:700; color:var(--text); border-top:1px solid rgba(177,135,49,.16); background:rgba(255,255,255,.82); }
.certificate-arrow { position:absolute; top:46%; transform:translateY(-50%); width:46px; height:46px; border-radius:50%; border:1px solid rgba(177,135,49,.28); background:rgba(255,255,255,.94); color:#9b7428; font-size:34px; line-height:1; cursor:pointer; z-index:3; box-shadow:0 10px 30px rgba(50,40,10,.12); }
.certificate-arrow:hover { transform:translateY(-50%) scale(1.06); }
.certificate-arrow.prev { left:18px; } .certificate-arrow.next { right:18px; }
.certificate-dots { position:absolute; left:50%; bottom:20px; transform:translateX(-50%); display:flex; gap:9px; }
.certificate-dot { width:9px; height:9px; padding:0; border-radius:50%; border:0; background:rgba(105,82,35,.25); cursor:pointer; transition:.25s ease; }
.certificate-dot.active { width:28px; border-radius:9px; background:#b58a37; }
@media (max-width:720px) { .certificate-slider{padding:14px 14px 52px;border-radius:20px}.certificate-stage{height:72vw;min-height:300px}.certificate-arrow{width:38px;height:38px;font-size:28px;top:43%}.certificate-arrow.prev{left:22px}.certificate-arrow.next{right:22px}.certificate-slide figcaption{font-size:15px} }


/* V2.4 navigation, typography and location refinements */
section[id], .map-card[id] { scroll-margin-top: 108px; }
.brand-name { font-size: 24px; line-height: 1.15; }
.brand-sub { font-size: 14px; margin-top: 4px; letter-spacing: .03em; }
.brand-mark { width: 50px; height: 50px; font-size: 21px; }
.nav { gap: 22px; }
.nav a { font-size: 17px; font-weight: 600; white-space: nowrap; }
.section-kicker { font-size: 18px; letter-spacing: .10em; margin-bottom: 16px; }
.section-kicker::before { width: 36px; height: 2px; }
.section-heading { margin-bottom: 40px; }
.section-heading h2, .showcase-copy h2, .about-main h2, .contact-card h2 { font-size: clamp(32px, 4.2vw, 52px); }
.map-card { align-self: stretch; }
.map-title { font-size: 30px; margin: 0 0 10px; }
.map-description { color: var(--muted); line-height: 1.8; margin: 0 0 18px; }
.location-image-link { position: relative; display: block; overflow: hidden; border-radius: 20px; box-shadow: var(--shadow); }
.location-image-link img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; transition: transform .35s ease; }
.location-image-link:hover img { transform: scale(1.025); }
.map-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 20px; }
.btn-outline { border: 1px solid rgba(138,106,62,.38); color: var(--gold-deep); background: rgba(255,255,255,.82); }
.map-address { margin: 18px 0 0; color: var(--muted); line-height: 1.8; }
@media (max-width: 1180px) { .nav { gap: 15px; } .nav a { font-size: 15px; } }
@media (max-width: 840px) { .brand-name { font-size: 21px; } .brand-sub { font-size: 13px; } .nav a { font-size: 17px; width: 100%; } .section-kicker { font-size: 17px; } }
@media (max-width: 640px) { .map-actions .btn { width: 100%; } }

@media (max-width: 840px) { .brand-logo { width: 50px; height: 50px; } .eyebrow { font-size: clamp(18px, 5vw, 24px); } }

@media (max-width: 640px) {
  .brand-logo-frame { width: 60px; height: 60px; padding: 7px; border-radius: 16px; }
  .brand-name { font-size: 18px; }
  .brand-sub { font-size: 12px; }
}