:root{--bg:#F3F8FD;--deep:#DCEAF6;--surface:#fff;--navy:#0E3A5C;--text:#24384C;--muted:#5A7388;--assist:#7A93A8;--sky:#5BA3D0;--water:#3D7EA6;--mist:#C5E4F5;--sand:#E8C9A0;--border:rgba(14,58,92,.12);--shadow:0 14px 34px rgba(14,58,92,.10)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.8 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;overflow-x:hidden}body.locked{overflow:hidden}a{color:inherit}img{max-width:100%;display:block}.topline{position:fixed;z-index:50;top:0;left:0;right:0;height:28px;background:var(--water);color:#fff}.topline-inner,.tidebar-inner,.bridge-inner,.wrap{width:min(1120px,calc(100% - 32px));margin:auto}.topline-inner{height:100%;display:flex;align-items:center;justify-content:space-between;font-size:13px}.icon-btn,.plain-btn{min-height:44px;border:0;background:transparent;color:inherit;font:inherit;cursor:pointer}.topline .icon-btn{min-height:28px;padding:0 10px}.tidebar{position:fixed;z-index:50;top:28px;left:0;right:0;height:50px;background:#fff;border-bottom:1px solid var(--mist)}.tidebar-inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:12px}.brand-link{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:800;color:var(--navy)}.brand-link img{height:26px;width:auto;object-fit:contain}.tide-actions{display:flex;align-items:center;gap:8px}.menu-btn,.app-btn,.btn{min-height:44px;display:inline-flex;align-items:center;justify-content:center;padding:8px 14px;border-radius:10px;text-decoration:none;font-weight:700}.menu-btn{border:1px solid var(--sky);background:#fff;color:var(--navy);cursor:pointer}.app-btn,.btn.primary{background:var(--water);color:#fff;border:1px solid var(--water)}.btn.secondary{background:#fff;color:var(--navy);border:1px solid var(--sky)}.bridge{position:fixed;z-index:45;top:78px;left:0;right:0;height:64px;background:var(--mist);border-bottom:1px solid var(--border)}.bridge-inner{height:100%;display:grid;grid-template-columns:repeat(5,1fr)}.bridge a{display:flex;align-items:center;justify-content:center;text-decoration:none;color:var(--navy);font-weight:800;border-right:1px solid rgba(255,255,255,.8)}.bridge a:first-child{border-left:1px solid rgba(255,255,255,.8)}.bridge a.active{background:#fff}.site-main{padding-top:166px}.wrap{padding-bottom:40px}.hero,.panel,.feature,.info-grid article,.home-card,.faq-item{background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:12px}.hero{padding:18px;margin-bottom:22px}.media-slot{background:linear-gradient(180deg,var(--deep),var(--bg));border-radius:12px;display:flex;align-items:center;justify-content:center;overflow:hidden}.media-slot img{width:100%;height:100%;object-fit:contain;object-position:center}.cover-slot{max-height:200px;aspect-ratio:16/7}.cover-slot img{max-height:200px}.section-media{height:170px}.section-media.tall{height:420px}.eyebrow{color:var(--water);font-weight:800;letter-spacing:.08em;margin:14px 0 4px}.hero h1,.page-head h1{font-size:clamp(28px,4vw,32px);line-height:1.25;color:var(--navy);margin:4px 0 12px}.lead{font-size:17px;color:var(--muted);max-width:850px}.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.home-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:22px 0}.home-card{padding:16px}.home-card h2,.feature h2,.panel h2,.info-grid h2{color:var(--navy);margin:12px 0 6px}.feature{padding:18px;margin:22px 0}.feature .feature-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:22px;align-items:center}.feature.alt .feature-grid{grid-template-columns:.8fr 1.2fr}.page-head{margin-bottom:20px}.page-head .section-media{margin-bottom:16px}.content-grid{display:grid;grid-template-columns:1fr;gap:18px}.panel{padding:20px}.panel h2{font-size:22px}.panel p{margin:0}.info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:24px 0}.info-grid article{padding:18px}.footer{background:var(--navy);color:var(--mist);padding:34px 0 76px}.footer .brand-link{color:#fff}.footer .brand-link img{height:26px}.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin:24px 0}.footer h3{color:#fff;margin:0 0 8px}.footer a{display:block;color:var(--mist);text-decoration:none;padding:3px 0}.footer-note{border-top:1px solid rgba(255,255,255,.14);padding-top:18px}.copyright{color:#fff}.overlay{position:fixed;inset:0;background:rgba(4,28,46,.5);z-index:70;opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.overlay.show{opacity:1;visibility:visible;pointer-events:auto}.tide-menu,.search-panel{position:fixed;z-index:80;left:0;top:78px;background:#fff;box-shadow:var(--shadow);visibility:hidden;opacity:0;pointer-events:none;transition:.2s}.tide-menu.open,.search-panel.open{visibility:visible;opacity:1;pointer-events:auto}.tide-menu{width:300px;height:480px;border-radius:0 0 12px 0;padding:16px;overflow:auto}.menu-head{display:flex;align-items:center;justify-content:space-between;gap:8px}.menu-brand{display:flex;align-items:center;gap:8px;font-weight:800;color:var(--navy)}.menu-brand img{height:24px}.menu-group{margin-top:14px}.menu-group h3{margin:0 0 6px;color:var(--water);font-size:14px}.menu-group a{display:block;text-decoration:none;border-top:1px solid var(--border);padding:8px 0;color:var(--navy);font-weight:700}.menu-group small{display:block;color:var(--muted);font-weight:400}.search-panel{width:440px;padding:18px;border-radius:0 0 12px 0}.search-panel input{width:100%;height:46px;border:1px solid var(--mist);border-radius:10px;padding:0 12px;font:inherit;color:var(--text);background:var(--bg)}.search-links{display:grid;grid-template-columns:repeat(2,1fr);gap:8px;margin-top:12px}.search-links a{padding:10px;border:1px solid var(--border);border-radius:10px;text-decoration:none;color:var(--navy);background:#fff}.mobile-nav{display:none}.faq-item{padding:18px;margin-bottom:14px}.faq-item h2{font-size:19px;color:var(--navy);margin:0 0 8px}.notice{border-left:4px solid var(--sand);background:#fff;padding:14px 16px;border-radius:0 10px 10px 0}.btn:focus-visible,.menu-btn:focus-visible,.icon-btn:focus-visible,a:focus-visible{outline:3px solid var(--sand);outline-offset:2px}
@media(max-width:760px){.bridge{display:none}.site-main{padding-top:102px}.topline-inner,.tidebar-inner,.wrap{width:min(100% - 32px,1120px)}.topline{height:28px}.tidebar{top:28px}.tide-actions{gap:6px}.menu-btn,.app-btn{padding:7px 10px}.home-grid,.info-grid,.footer-grid{grid-template-columns:1fr}.feature .feature-grid,.feature.alt .feature-grid{grid-template-columns:1fr}.feature.alt .section-media{order:2}.tide-menu{top:78px;width:calc(100% - 16px);height:62vh;border-radius:0 0 12px 0}.search-panel{top:78px;width:calc(100% - 16px)}.mobile-nav{position:fixed;display:grid;grid-template-columns:repeat(5,1fr);left:0;right:0;bottom:0;z-index:60;background:#fff;border-top:1px solid var(--mist);padding-bottom:env(safe-area-inset-bottom)}.mobile-nav a{height:50px;display:flex;align-items:center;justify-content:center;text-decoration:none;color:var(--navy);font-size:13px;font-weight:800}.mobile-nav a.active{background:var(--water);color:#fff}.footer{padding-bottom:calc(76px + env(safe-area-inset-bottom))}.cover-slot{aspect-ratio:16/9}.section-media{height:160px}.section-media.tall{height:360px}}