*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#F3F8FD;color:#24384C;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.75;overflow-x:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}.tide-line{position:fixed;top:0;left:0;right:0;height:8px;background:#3D7EA6;color:#fff;z-index:1002}.top-inner{max-width:1120px;margin:auto;height:8px;display:flex;align-items:center;justify-content:space-between;font-size:0;position:relative}.top-inner>span{font-size:0}.line-search{position:absolute;right:0;top:8px;transform:translateY(0);height:42px;border:0;background:transparent;color:#0E3A5C;padding:0 12px;z-index:2}.tide-stage{position:fixed;top:8px;left:0;right:0;height:50px;background:#fff;border-bottom:1px solid #C5E4F5;z-index:1001}.stage-inner{max-width:1120px;height:100%;margin:auto;padding:0 16px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;min-height:44px;font-weight:800;color:#0E3A5C}.brand img{height:26px;max-width:190px;object-fit:contain}.stage-actions{display:flex;gap:8px;align-items:center;margin-right:72px}.menu-button,.app-button{min-height:44px;border-radius:10px;padding:0 14px;border:1px solid #5BA3D0;background:#fff;color:#0E3A5C;display:inline-flex;align-items:center}.app-button{background:#3D7EA6;color:#fff;border-color:#3D7EA6}.tide-bridge{position:fixed;top:58px;left:0;right:0;height:64px;background:#C5E4F5;z-index:1000;display:grid;grid-template-columns:repeat(5,1fr);border-bottom:1px solid rgba(14,58,92,.12)}.tide-bridge a{display:flex;align-items:center;justify-content:center;color:#0E3A5C;font-weight:700;border-right:1px solid rgba(255,255,255,.9)}.tide-bridge a:last-child{border-right:0}.tide-bridge a:hover,.tide-bridge a:focus-visible,.tide-bridge a.is-current{background:#fff;color:#0E3A5C;outline:none}.site-main{max-width:1120px;margin:0 auto;padding:154px 16px 48px}.hero,.content-hero,.section-card,.faq-item,.notice-box{background:#fff;border:1px solid rgba(14,58,92,.12);box-shadow:0 14px 34px rgba(14,58,92,.10);border-radius:12px}.hero{padding:18px;margin-bottom:22px}.media-slot{background:#DCEAF6;border-radius:12px;display:flex;align-items:center;justify-content:center;overflow:hidden}.hero .media-slot{height:min(200px,28vw);min-height:130px}.media-slot img{width:100%;height:100%;object-fit:contain;object-position:center}.media-fallback{color:#0E3A5C;font-weight:800;font-size:24px;padding:22px;text-align:center}.eyebrow{color:#3D7EA6;font-weight:800;letter-spacing:.08em;margin:18px 0 4px}.hero h1,.content-hero h1{margin:0;color:#0E3A5C;font-size:clamp(28px,4vw,32px);line-height:1.28}.lead{font-size:16px;max-width:820px}.btn-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}.btn{min-height:44px;padding:0 16px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;background:#3D7EA6;color:#fff;border:1px solid #3D7EA6;font-weight:700}.btn.secondary{background:#fff;color:#0E3A5C;border-color:#5BA3D0}.btn:hover,.btn:focus-visible,.menu-button:hover,.menu-button:focus-visible,.app-button:hover,.app-button:focus-visible{box-shadow:0 0 0 3px rgba(91,163,208,.25);outline:none}.three-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:22px 0}.section-card{padding:16px}.section-card h2,.content-hero h2,.prose h2{color:#0E3A5C;line-height:1.35}.section-card .media-slot{height:165px;margin-bottom:12px}.stack-section{margin:22px 0;padding:22px;background:#fff;border-radius:12px;border:1px solid rgba(14,58,92,.12)}.stack-section .media-slot{height:170px;margin-top:14px}.section-link{color:#3D7EA6;font-weight:800}.content-hero{padding:24px;margin-bottom:18px}.content-hero .media-slot{height:180px;margin-top:18px}.prose{background:#fff;border-radius:12px;border:1px solid rgba(14,58,92,.12);padding:24px}.prose p{margin:0 0 16px}.prose h2{font-size:22px;margin-top:28px}.two-col{display:grid;grid-template-columns:1.4fr .8fr;gap:18px}.side-note{background:#DCEAF6;border-radius:12px;padding:18px;color:#0E3A5C}.side-note h2{margin-top:0}.rule-list{padding-left:20px}.rule-list li{margin:10px 0}.app-layout{display:grid;grid-template-columns:1fr 320px;gap:24px;align-items:start}.app-visuals{display:grid;gap:16px}.app-visuals .media-slot{min-height:180px}.app-visuals .app-poster{height:420px}.app-visuals .mark-slot{height:90px}.faq-list{display:grid;gap:14px}.faq-item{padding:18px}.faq-item h2{margin:0 0 8px;color:#0E3A5C;font-size:19px}.tide-bay,.search-panel{position:fixed;z-index:1102;visibility:hidden;pointer-events:none;opacity:0;transition:.18s ease}.tide-bay.is-open,.search-panel.is-open{visibility:visible;pointer-events:auto;opacity:1}.tide-bay{left:0;top:58px;width:300px;height:480px;background:#fff;border-radius:0 0 12px 0;box-shadow:0 14px 34px rgba(14,58,92,.18);overflow:auto}.bay-head,.search-head{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-bottom:1px solid rgba(14,58,92,.12)}.bay-brand{display:flex;align-items:center;gap:8px;color:#0E3A5C}.bay-brand img{height:24px;max-width:130px;object-fit:contain}.bay-head button,.search-head button{border:0;background:transparent;color:#3D7EA6;min-height:44px}.bay-groups{padding:12px 16px 18px}.bay-groups section{margin-bottom:16px}.bay-groups h2{font-size:14px;color:#5A7388;margin:0 0 6px}.bay-groups a{display:block;padding:9px 0;border-bottom:1px solid rgba(14,58,92,.08)}.bay-groups b{display:block;color:#0E3A5C}.bay-groups span{display:block;font-size:13px;color:#5A7388}.search-panel{top:58px;left:max(16px,calc((100vw - 1120px)/2));width:440px;background:#fff;border-radius:0 0 12px 12px;box-shadow:0 14px 34px rgba(14,58,92,.18);padding-bottom:14px}.search-look{display:block;padding:14px 16px}.search-look span{display:block;color:#5A7388;margin-bottom:8px}.search-look input{width:100%;min-height:44px;border:1px solid #5BA3D0;border-radius:10px;padding:0 12px;color:#0E3A5C;background:#fff}.search-links{padding:0 16px 8px;display:flex;flex-wrap:wrap;gap:8px}.search-links a{border:1px solid #C5E4F5;border-radius:10px;padding:8px 10px;color:#0E3A5C}.overlay{position:fixed;inset:0;background:rgba(14,58,92,.34);z-index:1100;opacity:0;visibility:hidden;pointer-events:none;transition:.18s ease}.overlay.is-open{opacity:1;visibility:visible;pointer-events:auto}.panel-open{overflow:hidden}.site-footer{background:#0E3A5C;color:#C5E4F5}.footer-inner{max-width:1120px;margin:auto;padding:34px 16px 80px}.footer-logo{display:flex;align-items:center;gap:12px}.footer-logo img{height:26px;max-width:160px;object-fit:contain}.footer-logo strong,.footer-logo span{display:block;color:#fff}.footer-brand p{max-width:800px}.footer-links{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:24px}.footer-links h2{color:#fff;font-size:16px}.footer-links a{display:block;padding:5px 0}.footer-bottom{display:flex;gap:16px;flex-wrap:wrap;border-top:1px solid rgba(197,228,245,.22);padding-top:18px;margin-top:24px}.mobile-bottom{display:none}.notice-box{padding:16px;margin-top:18px;background:#DCEAF6;color:#0E3A5C}.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.contact-grid .section-card{min-height:180px}
@media(max-width:780px){.line-search{right:6px}.stage-actions{margin-right:62px}.tide-bridge{display:none}.site-main{padding-top:88px;padding-bottom:80px}.three-grid,.two-col,.app-layout,.contact-grid{grid-template-columns:1fr}.hero .media-slot{height:180px}.section-card .media-slot,.stack-section .media-slot,.content-hero .media-slot{height:160px}.tide-bay{top:58px;width:calc(100% - 16px);height:62vh;border-radius:0 0 12px 0}.search-panel{top:58px;left:8px;right:8px;width:auto}.footer-links{grid-template-columns:repeat(2,1fr)}.mobile-bottom{display:grid;position:fixed;bottom:0;left:0;right:0;z-index:1000;grid-template-columns:repeat(5,1fr);height:calc(50px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:#fff;border-top:1px solid #C5E4F5}.mobile-bottom a{display:flex;align-items:center;justify-content:center;min-width:0;color:#0E3A5C;font-size:14px}.mobile-bottom a.is-current{background:#3D7EA6;color:#fff}.footer-inner{padding-bottom:92px}}
@media(max-width:480px){.stage-inner{padding:0 12px}.brand img{max-width:130px}.brand span{font-size:18px}.stage-actions{gap:6px;margin-right:58px}.menu-button,.app-button{padding:0 10px}.site-main{padding-left:16px;padding-right:16px}.footer-links{grid-template-columns:1fr 1fr}.hero,.content-hero,.prose,.stack-section{padding:18px}}