:root{--ink:#0d1b2a;--ink-2:#33475b;--ink-3:#6b7c8f;--line:#e2e8ef;--bg:#fff;--bg-soft:#f5f7fa;--brand:#0b5cab;--brand-dark:#08427c;--accent:#17a398;--radius:10px;--wrap:1120px;--font:-apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{font-family:var(--font);color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased;margin:0;font-size:16px;line-height:1.75}img{max-width:100%;height:auto;display:block}a{color:var(--brand);text-decoration:none}a:hover{color:var(--brand-dark);text-decoration:underline}.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px}.site-header{z-index:50;backdrop-filter:saturate(180%)blur(8px);border-bottom:1px solid var(--line);background:#fffffff0;position:sticky;top:0}.header-inner{align-items:center;gap:28px;height:66px;display:flex}.logo{flex:none;align-items:center;gap:10px;display:flex}.logo:hover{text-decoration:none}.logo-mark-img{object-fit:contain;width:68px;height:44px;display:block}.logo-text{flex-direction:column;line-height:1.15;display:flex}.logo-cn{color:var(--ink);letter-spacing:.5px;font-size:17px;font-weight:700}.logo-en{color:var(--ink-3);letter-spacing:1.6px;text-transform:uppercase;font-size:10px}.nav{flex-wrap:wrap;gap:4px;margin-left:auto;display:flex}.nav a{color:var(--ink-2);white-space:nowrap;border-radius:6px;padding:8px 11px;font-size:14.5px}.nav a:hover{background:var(--bg-soft);color:var(--brand);text-decoration:none}.nav a[aria-current=page]{color:var(--brand);background:#eef4fb;font-weight:600}.header-cta{background:var(--brand);color:#fff;border-radius:7px;flex:none;padding:9px 16px;font-size:14px;font-weight:600}.header-cta:hover{background:var(--brand-dark);color:#fff;text-decoration:none}.menu-toggle{display:none}@media (width<=900px){.nav{display:none}.nav.open{border-bottom:1px solid var(--line);background:#fff;flex-direction:column;gap:2px;padding:10px 16px 16px;display:flex;position:absolute;top:66px;left:0;right:0}.nav.open a{border-radius:6px;padding:11px 8px}.menu-toggle{border:1px solid var(--line);color:var(--ink-2);cursor:pointer;background:0 0;border-radius:7px;margin-left:auto;padding:7px 12px;font-size:14px;display:block}.header-cta{display:none}}.hero{color:#fff;background:radial-gradient(1100px 460px at 15% -10%,#0b5cab 0%,#0a2540 55%,#071a2d 100%);padding:76px 0 84px;position:relative;overflow:hidden}.hero:after{content:"";pointer-events:none;background-image:radial-gradient(#ffffff12 1px,#0000 1px);background-size:24px 24px;position:absolute;inset:0;mask-image:linear-gradient(#000000d9,#0000 78%)}.hero .wrap{z-index:1;position:relative}.hero-kicker{letter-spacing:2px;text-transform:uppercase;color:#8fd3cc;border:1px solid #8fd3cc66;border-radius:999px;margin-bottom:20px;padding:4px 13px;font-size:12.5px;display:inline-block}.hero h1{letter-spacing:.5px;margin:0 0 18px;font-size:clamp(28px,4.4vw,44px);font-weight:800;line-height:1.28}.hero p.lead{color:#c8d6e5;max-width:720px;margin:0 0 30px;font-size:clamp(15px,1.6vw,18px)}.hero-actions{flex-wrap:wrap;gap:12px;display:flex}.btn{border-radius:8px;padding:12px 24px;font-size:15px;font-weight:600;display:inline-block}.btn-primary{background:var(--accent);color:#062a26}.btn-primary:hover{color:#062a26;background:#29bdb1;text-decoration:none}.btn-ghost{color:#fff;border:1px solid #ffffff59}.btn-ghost:hover{color:#fff;background:#ffffff1a;text-decoration:none}.hero-facts{background:#ffffff24;border-radius:10px;grid-template-columns:repeat(4,1fr);gap:1px;margin-top:52px;display:grid;overflow:hidden}.hero-facts div{text-align:center;background:#0820388c;padding:18px 16px}.hero-facts strong{color:#8fd3cc;letter-spacing:.5px;font-size:26px;font-weight:800;display:block}.hero-facts span{color:#a9bccf;font-size:12.5px}@media (width<=700px){.hero{padding:54px 0 58px}.hero-facts{grid-template-columns:repeat(2,1fr);margin-top:34px}}section{padding:68px 0}section.soft{background:var(--bg-soft)}.section-head{max-width:760px;margin-bottom:38px}.section-head h2{letter-spacing:.5px;margin:0 0 12px;font-size:clamp(22px,2.6vw,30px);font-weight:800}.section-head p{color:var(--ink-3);margin:0;font-size:15.5px}.eyebrow{letter-spacing:2px;text-transform:uppercase;color:var(--brand);margin-bottom:10px;font-size:12.5px;font-weight:700}.grid{gap:20px;display:grid}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-2{grid-template-columns:repeat(2,1fr)}@media (width<=900px){.grid-3,.grid-2{grid-template-columns:1fr}}.card{border:1px solid var(--line);border-radius:var(--radius);background:#fff;flex-direction:column;padding:26px;transition:all .18s;display:flex}.card:hover{border-color:#bcd3ea;transform:translateY(-2px);box-shadow:0 10px 30px -18px #0b5cab73}.card h3{letter-spacing:.3px;margin:0 0 10px;font-size:18px}.card p{color:var(--ink-3);margin:0;font-size:14.5px}.card .more{margin-top:16px;font-size:14px;font-weight:600}.card ul{color:var(--ink-2);margin:12px 0 0;padding-left:18px;font-size:14.5px}.card ul li{margin:5px 0}.cat-block{margin-bottom:46px}.cat-block h2{margin:0 0 6px;font-size:21px}.cat-block>p{color:var(--ink-3);margin:0 0 20px;font-size:14.5px}.prod-list{grid-template-columns:repeat(3,1fr);gap:16px;display:grid}@media (width<=900px){.prod-list{grid-template-columns:1fr}}.prod-item{border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:20px 22px;display:block}.prod-item:hover{border-color:#bcd3ea;text-decoration:none;box-shadow:0 8px 24px -18px #0b5cab80}.prod-item strong{color:var(--ink);margin-bottom:6px;font-size:15.5px;display:block}.prod-item span{color:var(--ink-3);font-size:13.5px;line-height:1.6}.prose{max-width:820px}.prose h2{border-bottom:1px solid var(--line);margin:40px 0 14px;padding-bottom:8px;font-size:23px}.prose h3{margin:28px 0 10px;font-size:18px}.prose p{color:var(--ink-2);margin:0 0 16px}.prose ul,.prose ol{color:var(--ink-2);padding-left:22px}.prose li{margin:7px 0}.prose table{border-collapse:collapse;width:100%;margin:20px 0;font-size:14.5px}.prose th,.prose td{border:1px solid var(--line);text-align:left;vertical-align:top;padding:10px 13px}.prose th{background:var(--bg-soft);color:var(--ink);font-weight:600}.prose blockquote{border-left:3px solid var(--accent);background:var(--bg-soft);color:var(--ink-2);border-radius:0 8px 8px 0;margin:20px 0;padding:14px 20px}.prose code{background:var(--bg-soft);border-radius:4px;padding:2px 6px;font-size:.92em}.page-hero{background:var(--bg-soft);border-bottom:1px solid var(--line);padding:52px 0 46px}.page-hero h1{letter-spacing:.5px;margin:0 0 12px;font-size:clamp(24px,3vw,34px);font-weight:800}.page-hero p{color:var(--ink-3);max-width:760px;margin:0;font-size:15.5px}.crumb{color:var(--ink-3);margin-bottom:14px;font-size:13px}.crumb a{color:var(--ink-3)}.crumb a:hover{color:var(--brand)}.faq details{border:1px solid var(--line);border-radius:var(--radius);background:#fff;margin-bottom:10px;padding:16px 20px}.faq summary{cursor:pointer;color:var(--ink);font-size:15.5px;font-weight:600}.faq details[open] summary{margin-bottom:12px}.faq p{color:var(--ink-2);margin:0;font-size:14.5px}.cta-band{color:#fff;text-align:center;background:linear-gradient(120deg,#0a2540,#0b5cab);padding:56px 0}.cta-band h2{margin:0 0 12px;font-size:26px}.cta-band p{color:#c8d6e5;margin:0 0 26px}.site-footer{color:#93a7bb;background:#071a2d;padding:56px 0 26px;font-size:14px}.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:36px;display:grid}@media (width<=900px){.footer-grid{grid-template-columns:1fr 1fr;gap:26px}}.site-footer h4{color:#fff;letter-spacing:.5px;margin:0 0 14px;font-size:14.5px}.site-footer a{color:#93a7bb}.site-footer a:hover{color:#fff;text-decoration:none}.site-footer ul{margin:0;padding:0;list-style:none}.site-footer li{margin:8px 0}.footer-bottom{color:#6e8298;border-top:1px solid #ffffff1a;flex-wrap:wrap;justify-content:space-between;gap:16px;margin-top:40px;padding-top:22px;font-size:12.5px;display:flex}.contact-grid{grid-template-columns:1fr 1fr;gap:40px;display:grid}@media (width<=900px){.contact-grid{grid-template-columns:1fr}}.contact-item{border-bottom:1px solid var(--line);gap:14px;padding:16px 0;display:flex}.contact-item .k{color:var(--ink-3);flex:0 0 76px;font-size:14px}.contact-item .v{color:var(--ink);font-weight:600}.brand-strip{border-bottom:1px solid var(--line);color:var(--ink-3);letter-spacing:.02em;background:#f2f4f7;padding:9px 0;font-size:12.5px}.brand-strip .wrap{flex-wrap:wrap;align-items:center;gap:8px 22px;display:flex}.brand-strip .sep{color:var(--line)}.brand-strip img{display:block}.answer-lead{border-left:3px solid var(--brand);background:#f2f6fc;margin:0 0 32px;padding:20px 24px}.answer-lead .label{letter-spacing:.18em;text-transform:uppercase;color:var(--brand);margin-bottom:8px;font-size:11.5px;font-weight:600;display:block}.answer-lead p{color:var(--ink);margin:0;font-size:15.5px;line-height:1.75}