:root{--navy: #0a1f44;--navy-2: #102c5e;--blue: #1f5cff;--cyan: #22d3ee;--gold: #d4a437;--bg: #f5f7fb;--text: #1f2937;--muted: #5b6b83}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:PingFang SC,Microsoft YaHei,Noto Sans SC,sans-serif;color:var(--text);background:var(--bg);line-height:1.7}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.topbar{background:var(--navy);color:#9fb3d9;font-size:13px;padding:6px 0}.container{max-width:1240px;margin:0 auto;padding:0 24px}.topbar .container{display:flex;justify-content:space-between}.topbar a{color:#cfe0ff}.navbar{position:sticky;top:0;z-index:100;background:#fffffff5;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid #e3e9f4;box-shadow:0 2px 12px #0a1f440f}.navbar .container{display:flex;align-items:center;gap:24px;height:68px}.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}.brand-logo{width:42px;height:42px;border-radius:10px;background:linear-gradient(135deg,var(--blue),var(--cyan));display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:13px;letter-spacing:.5px}.brand-name{font-size:17px;font-weight:700;color:var(--navy);line-height:1.3}.brand-sub{font-size:11px;color:var(--muted);font-weight:400}.nav-links{display:flex;gap:2px;overflow-x:auto;scrollbar-width:none}.nav-links::-webkit-scrollbar{display:none}.nav-links a{white-space:nowrap;font-size:14px;color:#33415c;padding:6px 10px;border-radius:6px;transition:.2s}.nav-links a:hover{color:var(--blue);background:#eef3ff}.hero{position:relative;color:#fff;overflow:hidden;min-height:560px;display:flex;align-items:center}.hero-bg{position:absolute;top:0;right:0;bottom:0;left:0}.hero-bg img{width:100%;height:100%;object-fit:cover}.hero-bg:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(100deg,#071430eb 30%,#0714308c 65%,#07143040)}.hero .container{position:relative;z-index:2;padding-top:72px;padding-bottom:72px}.hero-tag{display:inline-block;font-size:13px;letter-spacing:2px;border:1px solid rgba(255,255,255,.4);border-radius:999px;padding:5px 16px;margin-bottom:22px;color:#cfe0ff}.hero h1{font-size:44px;line-height:1.25;font-weight:800;max-width:720px}.hero h1 span{color:var(--cyan)}.hero p.lead{margin-top:18px;font-size:17px;color:#d7e3f8;max-width:660px}.hero-actions{margin-top:32px;display:flex;gap:16px;flex-wrap:wrap}.btn{display:inline-block;padding:12px 30px;border-radius:8px;font-size:15px;font-weight:600;transition:.2s;cursor:pointer}.btn-primary{background:linear-gradient(90deg,var(--blue),#3b82f6);color:#fff;box-shadow:0 6px 20px #1f5cff66}.btn-primary:hover{transform:translateY(-2px)}.btn-ghost{border:1px solid rgba(255,255,255,.55);color:#fff}.btn-ghost:hover{background:#ffffff1f}.hero-stats{display:flex;gap:48px;margin-top:48px;flex-wrap:wrap}.hero-stat b{font-size:30px;color:var(--cyan);font-weight:800}.hero-stat div{font-size:13px;color:#b9c9e6}.section{padding:80px 0}.section:nth-of-type(2n){background:#fff}.sec-head{max-width:760px;margin-bottom:44px}.sec-kicker{color:var(--blue);font-weight:700;font-size:14px;letter-spacing:3px}.sec-head h2{font-size:32px;color:var(--navy);margin-top:8px;line-height:1.35}.sec-head p{margin-top:12px;color:var(--muted);font-size:15px}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.card{background:#fff;border:1px solid #e4eaf5;border-radius:14px;padding:26px;transition:.25s}.card:hover{transform:translateY(-4px);box-shadow:0 14px 34px #0a1f441a;border-color:#c9d8f5}.card h3{font-size:17px;color:var(--navy);margin-bottom:10px}.card p{font-size:14px;color:var(--muted)}.card .icon{width:46px;height:46px;border-radius:10px;margin-bottom:14px;background:linear-gradient(135deg,#e8f0ff,#dff7fb);display:flex;align-items:center;justify-content:center;font-size:22px}.sec-img{border-radius:16px;box-shadow:0 18px 44px #0a1f4429}.check-list{list-style:none}.check-list li{position:relative;padding-left:26px;margin-bottom:12px;font-size:15px}.check-list li:before{content:"✓";position:absolute;left:0;top:0;color:var(--blue);font-weight:800}.layers{display:flex;flex-direction:column;gap:14px}.layer{display:flex;gap:18px;align-items:flex-start;background:linear-gradient(90deg,#0d2450,#133069);color:#dbe7ff;border-radius:12px;padding:20px 24px;border:1px solid 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10px;border-radius:999px;background:#e8f0ff;color:var(--blue);margin-right:6px}.tag.gold{background:#fdf3dd;color:#a97e1c}.product-series{margin-bottom:40px}.series-title{display:inline-block;font-size:15px;font-weight:700;color:#fff;background:linear-gradient(90deg,var(--navy),var(--blue));padding:8px 20px;border-radius:8px;margin-bottom:20px}.series-title.gold{background:linear-gradient(90deg,#8a6512,var(--gold))}.product-card{border-top:3px solid var(--blue)}.series-title.gold+.grid-3 .product-card{border-top-color:var(--gold)}.product-card h3{display:flex;align-items:center;gap:8px}.product-num{color:var(--blue);font-size:13px;font-weight:800}.scene-card{overflow:hidden;padding:0}.scene-card .scene-body{padding:22px}.scene-card .std{margin-top:10px;font-size:12.5px;color:var(--muted);background:#f4f7fd;border-radius:8px;padding:8px 12px}.timeline{position:relative;padding-left:30px}.timeline:before{content:"";position:absolute;left:8px;top:6px;bottom:6px;width:2px;background:linear-gradient(var(--blue),var(--cyan))}.tl-item{position:relative;margin-bottom:26px}.tl-item:before{content:"";position:absolute;left:-28px;top:6px;width:14px;height:14px;border-radius:50%;background:#fff;border:4px solid var(--blue)}.tl-item b{color:var(--navy);font-size:16px}.tl-item p{font-size:14px;color:var(--muted);margin-top:4px}.footer{background:var(--navy);color:#9fb3d9;padding:60px 0 30px;font-size:14px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:36px;margin-bottom:40px}.footer h4{color:#fff;font-size:15px;margin-bottom:14px}.footer a{display:block;margin-bottom:8px;color:#9fb3d9;font-size:13px}.footer a:hover{color:#fff}.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:20px;font-size:12.5px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}@media(max-width:960px){.grid-2,.grid-3,.grid-4,.footer-grid{grid-template-columns:1fr}.hero h1{font-size:30px}.layer b{width:100%}.layer{flex-direction:column;gap:6px}}