:root{--bg:#fff;--ink:#111827;--muted:#64748b;--line:#e5e7eb;--navy:#0f172a;--navy2:#1e293b;--gold:#d6a536;--gold2:#f2c75c;--soft:#f8fafc;--card:#ffffff;--shadow:0 24px 70px rgba(15,23,42,.14);--radius:24px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,Arial,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--bg);line-height:1.65}img{max-width:100%;display:block}a{color:inherit;text-decoration:none}.container{width:min(1180px,92vw);margin:0 auto}.site-header{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.9);backdrop-filter:blur(16px);border-bottom:1px solid rgba(226,232,240,.8)}.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:76px}.brand{display:flex;gap:12px;align-items:center}.brand-mark{width:46px;height:46px;border-radius:14px;background:linear-gradient(135deg,var(--navy),#334155);color:#fff;display:grid;place-items:center;font-weight:800;letter-spacing:.04em}.brand-text{display:flex;flex-direction:column;line-height:1.1}.brand-text strong{font-size:18px}.brand-text small{font-size:12px;color:var(--muted);margin-top:4px}.main-nav{display:flex;align-items:center;gap:23px;font-size:14px;font-weight:650;color:#334155}.nav-cta{background:var(--navy);color:#fff;padding:10px 16px;border-radius:999px}.lang-switch{display:flex;align-items:center;gap:6px;margin-left:4px;padding:4px;border:1px solid var(--line);border-radius:999px;background:#fff}.lang-switch button{border:0;background:transparent;padding:7px 10px;border-radius:999px;font-weight:800;color:#64748b;cursor:pointer}.lang-switch button.active{background:var(--gold);color:#111827}.menu-btn{display:none;border:0;background:#111827;color:#fff;border-radius:12px;width:42px;height:42px;font-size:20px}.hero{position:relative;min-height:760px;display:grid;align-items:center;overflow:hidden;background:#0f172a}.hero-photo{position:absolute;inset:0;background:url('assets/images/hero-main.jpg') center/cover no-repeat;transform:scale(1.02)}.hero-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(2,6,23,.84) 0%,rgba(15,23,42,.66) 34%,rgba(15,23,42,.22) 70%,rgba(15,23,42,.08) 100%)}.hero-content{position:relative;color:#fff;padding:120px 0 100px;max-width:1180px}.hero-content h1{max-width:850px;font-size:clamp(46px,6.2vw,82px);line-height:.96;letter-spacing:-.055em;margin:0 0 26px}.lead{font-size:19px;color:#e2e8f0;max-width:770px}.eyebrow,.section-kicker{color:#d6a536;font-weight:900;letter-spacing:.12em;text-transform:uppercase;font-size:13px;margin:0 0 14px}.hero-actions{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;justify-content:center;padding:13px 20px;border-radius:999px;font-weight:850;border:1px solid transparent}.btn-primary{background:var(--gold);color:#111827;box-shadow:0 16px 34px rgba(214,165,54,.35)}.btn-secondary{background:#fff;color:#111827;border-color:#cbd5e1}.quick-stats{background:#fff;border-bottom:1px solid var(--line)}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}.stats-grid div{padding:26px 24px;border-left:1px solid var(--line)}.stats-grid div:last-child{border-right:1px solid var(--line)}.stats-grid strong{display:block;font-size:27px;color:#111827;line-height:1.1}.stats-grid span{display:block;color:var(--muted);font-size:13px;margin-top:6px}.section{padding:92px 0}.section h2{font-size:clamp(30px,4vw,50px);line-height:1.08;letter-spacing:-.035em;margin:0 0 18px}.about-grid,.factory-grid,.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}.rich-text p{font-size:18px;color:#475569}.image-card{margin:0;border-radius:var(--radius);overflow:hidden;background:#fff;box-shadow:var(--shadow);border:1px solid var(--line)}.image-card img{width:100%;height:430px;object-fit:cover}.image-card.tall img{height:500px}.image-card figcaption,.gallery-grid figcaption{padding:12px 16px;color:#64748b;font-size:13px;background:#fff}.dark{background:var(--navy);color:#fff}.dark .section-kicker{color:var(--gold2)}.capability-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:34px}.capability-grid article{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);border-radius:22px;padding:25px}.capability-grid article>span{color:var(--gold2);font-weight:900}.capability-grid h3{font-size:20px}.capability-grid p{color:#cbd5e1}.section-head{display:flex;justify-content:space-between;gap:40px;align-items:flex-end}.section-head>p{max-width:460px;color:var(--muted)}.section-head.centered{align-items:flex-end}.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:36px}.product-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:0 14px 40px rgba(15,23,42,.07)}.product-card img{height:250px;width:100%;object-fit:cover}.product-card h3,.product-card p{padding:0 24px}.product-card h3{font-size:21px;margin:22px 0 8px}.product-card p{padding-bottom:28px;color:var(--muted)}.factory{background:var(--soft)}.factory-head{margin-bottom:34px}.factory-image-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:34px}.factory-image-grid .image-card img{height:360px}.factory-metrics{grid-template-columns:repeat(2,1fr);margin-top:26px}.metric-list{display:grid;gap:12px;margin-top:26px}.metric-list div{padding:18px;background:#fff;border:1px solid var(--line);border-radius:16px}.metric-list strong{display:block}.metric-list span{color:var(--muted)}.gallery-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:38px}.gallery-grid figure{margin:0;border:1px solid var(--line);background:#fff;border-radius:22px;overflow:hidden;box-shadow:0 14px 36px rgba(15,23,42,.08)}.gallery-grid img{height:230px;width:100%;object-fit:cover}.gallery-grid-12 img{height:220px}.exhibition{background:#fff}.exhibition-box{background:linear-gradient(135deg,#111827,#334155);color:#fff;border-radius:30px;padding:50px;display:flex;align-items:center;justify-content:space-between;gap:34px}.exhibition-box p{color:#cbd5e1}.contact-card{border:1px solid var(--line);border-radius:var(--radius);padding:28px;background:#fff;box-shadow:var(--shadow)}.full{width:100%;margin-top:12px}.site-footer{background:#020617;color:#cbd5e1;padding:34px 0}.footer-grid{display:flex;justify-content:space-between;gap:24px}.footer-grid strong{color:#fff}.lang-cn .en-only,.lang-en .cn-only{display:none!important}.cn-only{font-family:"PingFang SC","Microsoft YaHei",Inter,Arial,sans-serif}@media(max-width:980px){.main-nav{display:none;position:absolute;left:4vw;right:4vw;top:76px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.main-nav.open{display:flex}.lang-switch{margin-left:0;align-self:flex-start}.menu-btn{display:block}.hero{min-height:680px}.hero-content h1{font-size:46px}.stats-grid,.about-grid,.factory-grid,.factory-image-grid,.factory-metrics,.contact-grid,.capability-grid,.product-grid,.gallery-grid{grid-template-columns:1fr}.stats-grid div{border-right:1px solid var(--line);border-bottom:1px solid var(--line)}.section-head,.exhibition-box,.footer-grid{display:block}.section{padding:64px 0}.image-card img,.image-card.tall img,.factory-image-grid .image-card img{height:330px}}
/* 企业宣传视频模块：与其他模块保持左侧对齐 */
.promo-video-section .promo-video-head {
  text-align: left;
  max-width: 100%;
  margin: 0 0 28px 0;
}

.promo-video-section .section-kicker {
  justify-content: flex-start;
  text-align: left;
}

.promo-video-section h2,
.promo-video-section p {
  text-align: left;
}

.promo-video-wrap {
  width: 100%;
}

.promo-video-wrap video {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 28px;
}

/* Final launch fixes */
.promo-video-section{padding-top:76px;padding-bottom:76px}.promo-video-head{max-width:100%;margin:0 0 28px 0;text-align:left}.promo-video-head h2{margin-top:10px;margin-bottom:14px}.promo-video-card{width:100%;border-radius:28px;overflow:hidden;background:#0f172a;box-shadow:0 22px 70px rgba(15,23,42,.16)}.promo-video-card video{display:block;width:100%;aspect-ratio:16/9;height:auto;object-fit:cover;background:#0f172a}.service-system{background:#fff}.service-box{background:linear-gradient(135deg,#111827,#334155);color:#fff;border-radius:30px;padding:50px;display:grid;grid-template-columns:1.25fr .95fr;align-items:center;gap:34px}.service-box p{color:#cbd5e1}.service-steps{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.service-steps span{display:block;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);border-radius:18px;padding:18px}.service-steps strong{display:block;color:var(--gold2);font-size:20px;line-height:1}.service-steps em{display:block;margin-top:8px;font-style:normal;font-weight:800}.contact-card a{text-decoration:underline;text-underline-offset:3px}.contact-card .btn{text-decoration:none}.back-to-top{position:fixed;right:22px;bottom:24px;z-index:40;width:48px;height:48px;border-radius:999px;border:1px solid rgba(15,23,42,.12);background:var(--navy);color:#fff;font-size:22px;font-weight:900;cursor:pointer;box-shadow:0 12px 34px rgba(15,23,42,.22);opacity:0;visibility:hidden;transform:translateY(10px);transition:.2s ease}.back-to-top.show{opacity:1;visibility:visible;transform:translateY(0)}.back-to-top:hover{background:#334155}@media(max-width:980px){.service-box{display:block;padding:30px}.service-steps{grid-template-columns:1fr;margin-top:24px}.promo-video-card{border-radius:18px}.back-to-top{right:16px;bottom:18px;width:44px;height:44px}.hero-actions .btn{width:100%}}