*{box-sizing:border-box}
:root{--ink:#102033;--muted:#5b6b80;--line:#d8e4f2;--paper:#f8fbff;--blue:#2563eb;--cyan:#06b6d4;--green:#16a34a;--soft:#eef6ff}
body{margin:0;font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:linear-gradient(180deg,#f8fbff,#eef6ff)}
a{color:inherit;text-decoration:none}.container{width:min(1120px,calc(100% - 28px));margin:0 auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(248,251,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid rgba(216,228,242,.88)}
.nav{min-height:68px;display:flex;align-items:center;justify-content:space-between;gap:16px}.logo{font-size:24px;font-weight:900;color:#1d4ed8;letter-spacing:1px}.nav-links{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end}.nav-links a{padding:8px 12px;border-radius:999px;border:1px solid transparent;color:#1e40af;font-weight:800}.nav-links a:hover{border-color:#bfdbfe;background:#eff6ff}
.hero{position:relative;height:min(72vh,680px);min-height:520px;overflow:hidden;background:#0f172a}.hero-slider,.hero-slide{position:absolute;inset:0}.hero-slide{opacity:0;transition:opacity .55s ease}.hero-slide.active{opacity:1}.hero-slide img{width:100%;height:100%;object-fit:cover;display:block}.hero-placeholder{background:radial-gradient(circle at 16% 20%,rgba(56,189,248,.38),transparent 28%),radial-gradient(circle at 80% 16%,rgba(34,197,94,.28),transparent 30%),linear-gradient(135deg,#0f172a,#1d4ed8 58%,#06b6d4)}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(2,6,23,.82),rgba(15,23,42,.34),rgba(2,6,23,.58))}
.hero-overlay{position:relative;z-index:2;height:100%;display:flex;align-items:center}.hero-content{color:#fff}.hero-badge{display:inline-flex;border:1px solid rgba(219,234,254,.5);background:rgba(219,234,254,.14);border-radius:999px;padding:8px 13px;font-weight:900;color:#bfdbfe}.hero h1{margin:18px 0 8px;font-size:clamp(44px,8vw,82px);line-height:1.04;font-weight:900}.hero p{margin:0;color:#dbeafe;font-size:24px;font-weight:800}.hero-buttons{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 18px;border-radius:999px;font-weight:900}.btn-primary{background:linear-gradient(135deg,var(--blue),var(--cyan));color:#fff;box-shadow:0 14px 30px rgba(37,99,235,.28)}.btn-light{background:rgba(255,255,255,.9);color:#1e40af}
.slider-btn{position:absolute;top:50%;transform:translateY(-50%);z-index:4;width:48px;height:48px;border-radius:999px;border:1px solid rgba(255,255,255,.38);background:rgba(15,23,42,.42);color:#fff;font-size:34px;cursor:pointer}.slider-btn.prev{left:18px}.slider-btn.next{right:18px}.slider-dots{position:absolute;z-index:4;left:50%;bottom:18px;transform:translateX(-50%);display:flex;gap:8px}.slider-dots button{width:10px;height:10px;border:0;border-radius:999px;background:rgba(255,255,255,.46);cursor:pointer}.slider-dots button.active{width:28px;background:#fff}
.section{padding:74px 0}.blue-bg{background:linear-gradient(180deg,#eff6ff,#ecfeff)}.section-title{text-align:center;max-width:760px;margin:0 auto 32px}.section-title span,.contact-card span{color:#2563eb;font-weight:900;font-size:12px;letter-spacing:3px}.section-title h2{margin:8px 0 10px;font-size:clamp(30px,5vw,48px);line-height:1.12}.section-title p{margin:0;color:var(--muted);line-height:1.8}
.info-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.info-card{background:#fff;border:1px solid var(--line);border-radius:8px;padding:18px;box-shadow:0 14px 34px rgba(37,99,235,.08)}.info-card.wide{grid-column:span 2}.info-card strong{display:block;color:#1d4ed8;margin-bottom:8px}.info-card p{margin:0;color:var(--muted);line-height:1.7}
.feature-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}.feature-card{background:#fff;border:1px solid var(--line);border-radius:8px;padding:22px;box-shadow:0 14px 34px rgba(37,99,235,.08)}.feature-card .icon{width:44px;height:44px;border-radius:999px;display:grid;place-items:center;background:#dbeafe;color:#1d4ed8;font-weight:900;margin-bottom:14px}.feature-card h3{margin:0 0 8px}.feature-card p{margin:0;color:var(--muted);line-height:1.75}
.category-tabs{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:22px}.tab-btn{border:1px solid #bfdbfe;background:#fff;border-radius:999px;padding:10px 16px;color:#1e40af;font-weight:900;cursor:pointer}.tab-btn.active,.tab-btn:hover{background:#2563eb;color:#fff;border-color:#2563eb}
.gallery-panel{display:none}.gallery-panel.active{display:block}.gallery-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin:0 0 18px}.gallery-head h3{margin:0;font-size:26px;color:#1d4ed8}.gallery-head p{margin:0;color:var(--muted);line-height:1.7;max-width:620px}.image-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.image-card{padding:0;border:0;border-radius:8px;overflow:hidden;background:#fff;box-shadow:0 18px 40px rgba(37,99,235,.12);cursor:zoom-in}.image-card img{display:block;width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .25s ease}.image-card:hover img{transform:scale(1.04)}
.empty-box{border:1px dashed #93c5fd;border-radius:8px;background:#f8fbff;padding:34px;text-align:center;color:var(--muted)}.empty-box p{margin:0 0 8px;font-weight:900;color:#1d4ed8}
.contact-section{background:#0f172a;color:#fff}.contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:22px;align-items:stretch}.contact-card,.qrcode-card{border:1px solid rgba(219,234,254,.18);border-radius:8px;background:rgba(255,255,255,.08);padding:28px}.contact-card h2{margin:8px 0 10px;font-size:42px}.contact-card p{color:#dbeafe;line-height:1.8}.contact-list{display:grid;gap:12px;margin:20px 0}.contact-list div{border:1px solid rgba(219,234,254,.16);border-radius:8px;padding:13px}.contact-list strong{display:block;color:#bfdbfe;margin-bottom:5px}.qrcode-card{text-align:center;display:flex;flex-direction:column;align-items:center;justify-content:center}.qrcode-card img,.qr-empty{width:220px;height:220px;border-radius:8px;background:#fff;object-fit:cover}.qr-empty{display:grid;place-items:center;color:#1d4ed8;font-weight:900;line-height:1.6}.qrcode-card h3{margin:18px 0 4px}
.footer{padding:24px 0;text-align:center;color:#1e40af;background:#eff6ff}.lightbox{position:fixed;inset:0;z-index:50;background:rgba(0,0,0,.88);display:none;align-items:center;justify-content:center;padding:18px}.lightbox.show{display:flex}.lightbox img{max-width:100%;max-height:92vh;border-radius:8px;box-shadow:0 24px 80px rgba(0,0,0,.45)}.lightbox button{position:fixed;right:18px;top:14px;width:46px;height:46px;border-radius:999px;border:1px solid rgba(255,255,255,.32);background:#111;color:#fff;font-size:30px;cursor:pointer}
@media(max-width:900px){.nav{align-items:flex-start;flex-direction:column;padding:14px 0}.nav-links{justify-content:flex-start}.hero{min-height:500px}.info-grid,.feature-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.image-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.contact-grid{grid-template-columns:1fr}.gallery-head{display:block}}
@media(max-width:560px){.container{width:min(100% - 20px,1120px)}.nav-links{display:grid;grid-template-columns:repeat(2,1fr);width:100%;gap:8px}.nav-links a{text-align:center}.hero{min-height:470px}.hero p{font-size:19px}.hero-buttons .btn{width:100%}.section{padding:52px 0}.info-grid,.feature-grid,.image-grid{grid-template-columns:1fr}.info-card.wide{grid-column:auto}.contact-card,.qrcode-card{padding:20px}.contact-card h2{font-size:32px}}