:root{--paper:#F3F8FD;--deep:#DCEAF6;--card:#fff;--navy:#0E3A5C;--text:#24384C;--muted:#5A7388;--soft:#7A93A8;--sky:#5BA3D0;--tide:#3D7EA6;--mist:#C5E4F5;--sand:#E8C9A0;--border:rgba(14,58,92,.12);--shadow:0 14px 34px rgba(14,58,92,.10);--radius:12px;--max:1120px;--header:122px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.75;overflow-x:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}img{display:block;max-width:100%;height:auto}.container,.header-inner,.bridge-inner{width:min(calc(100% - 32px),var(--max));margin-inline:auto}.skip-link{position:fixed;left:16px;top:-100px;z-index:9999;background:#fff;color:var(--navy);padding:10px 14px;border-radius:8px;box-shadow:var(--shadow)}.skip-link:focus{top:12px}.site-header{position:fixed;inset:0 0 auto 0;z-index:1000}.tide-line{height:8px;background:var(--tide);color:#fff;overflow:hidden}.tide-line-inner{height:8px;display:flex;align-items:center;justify-content:space-between;font-size:0}.brand-mini{font-size:8px;line-height:8px;white-space:nowrap}.text-button{border:0;background:transparent;color:#fff;cursor:pointer;padding:0}.search-open{position:absolute;right:max(16px,calc((100vw - var(--max))/2));top:8px;height:50px;color:var(--navy);padding:0 12px;font-size:14px;z-index:2}.tide-stage{height:50px;background:#fff;border-bottom:1px solid var(--mist)}.tide-stage-inner{height:50px;display:flex;align-items:center;justify-content:space-between;padding-right:68px}.brand-link{display:flex;align-items:center;min-height:44px;max-width:220px}.brand-logo,.menu-logo,.footer-logo{height:26px;width:auto;max-width:190px;object-fit:contain;object-position:left center}.brand-fallback{font-size:21px;font-weight:800;color:var(--navy);letter-spacing:.06em}.stage-actions{display:flex;gap:8px;align-items:center}.stage-actions a,.stage-actions button{min-height:44px;padding:0 14px;border-radius:10px;border:1px solid var(--sky);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;font-weight:700}.menu-open{background:#fff;color:var(--navy)}.app-shortcut{background:var(--tide);color:#fff}.tide-bridge{height:64px;background:var(--mist);border-bottom:1px solid rgba(255,255,255,.9)}.bridge-inner{height:64px;display:grid;grid-template-columns:repeat(5,1fr)}.bridge-inner a{display:flex;align-items:center;justify-content:center;color:var(--navy);font-weight:700;border-right:1px solid #fff;min-width:0}.bridge-inner a:first-child{border-left:1px solid #fff}.bridge-inner a:hover,.bridge-inner a:focus-visible,.bridge-inner a.is-current{background:#fff;color:var(--navy)}.site-main{padding-top:calc(var(--header) + 34px);min-height:60vh}.hero,.section-block,.page-hero,.content-section{width:min(calc(100% - 32px),var(--max));margin:0 auto 28px}.hero{background:#fff;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}.hero-media,.media-slot{background:linear-gradient(135deg,var(--deep),var(--paper));display:flex;align-items:center;justify-content:center;min-height:140px}.hero-media{max-height:200px}.hero-media img{width:100%;max-height:200px;object-fit:contain;object-position:center}.hero-copy{padding:26px 28px}.eyebrow{margin:0 0 4px;color:var(--tide);font-weight:800;letter-spacing:.12em}.hero h1,.page-hero h1{font-size:clamp(28px,4vw,32px);line-height:1.28;color:var(--navy);margin:0 0 12px}.hero-copy p{max-width:820px}.button-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.btn{min-height:44px;display:inline-flex;align-items:center;justify-content:center;padding:10px 16px;border-radius:10px;border:1px solid var(--tide);font-weight:800}.btn.primary{background:var(--tide);color:#fff}.btn.secondary{background:#fff;color:var(--navy);border-color:var(--sky)}.btn:hover,.btn:focus-visible,.stage-actions a:hover,.stage-actions button:hover{outline:3px solid rgba(91,163,208,.24);outline-offset:2px}.section-title{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:14px}.section-title h2{margin:0;color:var(--navy);font-size:24px}.section-title p{margin:0;color:var(--muted);font-size:14px}.cards-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}.card-media{height:170px;background:var(--deep);display:flex;align-items:center;justify-content:center}.card-media img{width:100%;height:100%;object-fit:contain;object-position:center}.card-body{padding:20px}.card h3{margin:0 0 8px;color:var(--navy);font-size:20px}.card p{margin:0 0 14px}.text-link{color:var(--tide);font-weight:800}.feature{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(280px,.8fr);gap:24px;align-items:center;background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}.feature.reverse{grid-template-columns:minmax(280px,.8fr) minmax(0,1.2fr)}.feature.reverse .feature-copy{order:2}.feature.reverse .media-slot{order:1}.feature-copy h2{margin:0 0 10px;color:var(--navy);font-size:24px}.feature-copy p{margin:0 0 12px}.media-slot{min-height:170px;border-radius:10px;overflow:hidden}.media-slot img{width:100%;max-height:180px;object-fit:contain;object-position:center}.app-feature .media-slot{min-height:260px}.app-feature .media-slot img{max-height:420px;width:auto;max-width:100%;object-fit:contain}.mark-icon{max-height:72px!important;max-width:72px!important;margin:0 auto}.page-hero{background:linear-gradient(135deg,#fff 0%,var(--deep) 100%);border:1px solid var(--border);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}.page-hero p{max-width:820px;margin:0}.article-grid{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:24px}.article-main,.aside-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.article-main{padding:28px}.article-main h2{color:var(--navy);font-size:23px;margin:28px 0 10px}.article-main h2:first-child{margin-top:0}.article-main h3{color:var(--navy);font-size:18px;margin:22px 0 8px}.article-main p,.article-main li{color:var(--text)}.article-main ul,.article-main ol{padding-left:1.3em}.aside-card{padding:20px;height:max-content;position:sticky;top:150px}.aside-card h2{font-size:18px;color:var(--navy);margin:0 0 12px}.aside-card a{display:block;padding:9px 0;border-bottom:1px solid var(--border);color:var(--tide);font-weight:700}.aside-card a:last-child{border-bottom:0}.notice{background:var(--deep);border-left:4px solid var(--sand);padding:14px 16px;border-radius:8px;color:var(--navy);margin:18px 0}.faq-list{display:grid;gap:14px}.faq-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow)}.faq-item h2{margin:0 0 8px;color:var(--navy);font-size:19px}.faq-item p{margin:0}.site-footer{margin-top:44px;background:var(--navy);color:var(--mist);padding:34px 0 calc(32px + env(safe-area-inset-bottom))}.footer-brand-row{padding-bottom:22px;border-bottom:1px solid rgba(197,228,245,.2)}.footer-brand{display:flex;align-items:center;gap:12px}.footer-brand div{display:flex;flex-direction:column;line-height:1.3}.footer-brand strong{color:#fff}.footer-brand span{font-size:12px;letter-spacing:.14em}.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding-top:24px}.footer-grid h2{font-size:16px;color:#fff;margin:0 0 10px}.footer-grid a{display:block;padding:4px 0;color:var(--mist)}.footer-note{margin-top:26px;padding-top:18px;border-top:1px solid rgba(197,228,245,.2);font-size:14px}.footer-note p{margin:5px 0}.page-overlay{position:fixed;inset:0;background:rgba(14,58,92,.38);z-index:1090}.tide-menu,.search-panel{position:fixed;z-index:1100;visibility:hidden;pointer-events:none;opacity:0;transition:opacity .18s ease,transform .18s ease}.tide-menu{left:0;top:58px;width:300px;height:min(480px,calc(100vh - 70px));background:#fff;border-radius:0 0 12px 0;box-shadow:var(--shadow);transform:translateY(-8px);overflow:auto}.tide-menu.is-open,.search-panel.is-open{visibility:visible;pointer-events:auto;opacity:1;transform:none}.menu-head{position:sticky;top:0;background:#fff;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;padding:12px 14px;z-index:1}.menu-brand{display:flex;gap:8px;align-items:center;color:var(--navy);font-weight:800}.menu-close,.search-close{min-height:44px;border:1px solid var(--sky);background:#fff;color:var(--navy);border-radius:10px;padding:0 12px;cursor:pointer}.menu-groups{padding:6px 14px 18px}.menu-groups h2{font-size:15px;color:var(--navy);margin:15px 0 5px}.menu-groups a{display:block;padding:9px 0;border-bottom:1px solid var(--border)}.menu-groups strong{display:block;color:var(--navy);font-size:15px}.menu-groups span{display:block;color:var(--muted);font-size:12px;line-height:1.45;margin-top:2px}.search-panel{top:58px;left:max(16px,calc((100vw - var(--max))/2));width:min(440px,calc(100vw - 32px));background:#fff;border:1px solid var(--border);border-radius:0 0 12px 12px;box-shadow:var(--shadow);padding:16px;transform:translateY(-8px)}.search-panel-head{display:flex;justify-content:space-between;align-items:center;color:var(--navy);margin-bottom:12px}.search-box{display:grid;grid-template-columns:auto 1fr;align-items:center;border:1px solid var(--sky);border-radius:10px;overflow:hidden}.search-box span{padding:0 12px;color:var(--muted);font-size:13px}.search-box input{min-height:46px;border:0;outline:0;padding:0 10px;color:var(--text);min-width:0}.preset-links{display:grid;grid-template-columns:repeat(2,1fr);gap:8px;margin-top:12px}.preset-links a{min-height:44px;display:flex;align-items:center;padding:8px 12px;background:var(--deep);color:var(--navy);border-radius:10px;font-weight:700}.modal-open{overflow:hidden}.mobile-bottom-nav{display:none}
@media (max-width:860px){:root{--header:58px}.tide-bridge{display:none}.tide-stage-inner{padding-right:68px}.site-main{padding-top:calc(var(--header) + 24px)}.cards-3{grid-template-columns:1fr}.feature,.feature.reverse{grid-template-columns:1fr}.feature.reverse .feature-copy,.feature.reverse .media-slot{order:initial}.article-grid{grid-template-columns:1fr}.aside-card{position:static}.footer-grid{grid-template-columns:repeat(2,1fr)}.tide-menu{top:58px;width:calc(100% - 12px);height:62vh;border-radius:0 0 12px 0}.mobile-bottom-nav{display:grid;position:fixed;z-index:1005;left:0;right:0;bottom:0;height:calc(50px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:#fff;border-top:1px solid var(--border);grid-template-columns:repeat(5,1fr)}.mobile-bottom-nav a{display:flex;align-items:center;justify-content:center;min-width:0;font-size:14px;color:var(--navy)}.mobile-bottom-nav a.is-current{background:var(--tide);color:#fff}.site-footer{padding-bottom:calc(76px + env(safe-area-inset-bottom))}}
@media (max-width:560px){.container,.header-inner,.bridge-inner,.hero,.section-block,.page-hero,.content-section{width:calc(100% - 32px)}.tide-stage-inner{padding-right:58px}.brand-link{max-width:140px}.brand-logo{max-width:140px}.stage-actions{gap:6px}.stage-actions a,.stage-actions button{padding:0 10px;font-size:13px}.search-open{right:8px;padding:0 8px}.hero-copy,.page-hero,.article-main{padding:20px}.section-title{align-items:flex-start;flex-direction:column;gap:4px}.footer-grid{grid-template-columns:1fr 1fr;gap:18px}.preset-links{grid-template-columns:1fr}.search-panel{left:16px;width:calc(100% - 32px)}}