:root{--paper:#F3F8FD;--deep:#DCEAF6;--white:#FFFFFF;--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}
*{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;line-height:1.75;overflow-x:hidden}.shell{width:min(calc(100% - 32px),var(--max));margin:0 auto}a{color:var(--tide);text-decoration:none}a:hover{text-decoration:underline}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid var(--sand);outline-offset:2px}button,input{font:inherit}.site-header{position:fixed;inset:0 0 auto;z-index:60}.tide-line{height:28px;background:var(--tide);color:#fff;font-size:13px}.tide-line-inner{height:100%;display:flex;align-items:center;justify-content:space-between}.plain-action{border:0;background:transparent;color:#fff;min-width:44px;min-height:28px;cursor:pointer}.tide-stage{height:50px;background:#fff;border-bottom:1px solid var(--mist)}.stage-inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:12px}.brand{display:inline-flex;align-items:center;min-height:44px;color:var(--navy)}.brand strong{font-size:20px}.brand-logo{height:26px;max-width:210px;object-fit:contain}.stage-actions{display:flex;gap:8px;align-items:center}.primary-btn,.secondary-btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:8px 16px;border-radius:10px;font-weight:700;border:1px solid transparent;cursor:pointer}.primary-btn{background:var(--tide);color:#fff}.primary-btn:hover{background:var(--navy);text-decoration:none}.secondary-btn{background:#fff;color:var(--navy);border-color:var(--sky)}.secondary-btn:hover{background:var(--paper);text-decoration:none}.compact{min-height:40px;padding:6px 12px}.tide-bridge{height:64px;background:var(--mist);display:grid;grid-template-columns:repeat(5,1fr);border-bottom:1px solid rgba(255,255,255,.85)}.tide-bridge a{display:flex;align-items:center;justify-content:center;color:var(--navy);font-weight:700;border-right:1px solid rgba(255,255,255,.9)}.tide-bridge a:last-child{border-right:0}.tide-bridge a.active{background:#fff}.tide-bridge a:hover{text-decoration:none;background:rgba(255,255,255,.65)}main{padding-top:166px;min-height:70vh}.hero,.section-block,.content-card,.article-shell{background:#fff;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.hero{margin:24px auto;padding:22px}.cover-slot,.image-slot{display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--paper),var(--mist));border:1px solid var(--border);border-radius:12px;overflow:hidden}.cover-slot{max-height:200px;min-height:140px}.cover-slot img{width:100%;max-height:200px;object-fit:contain;object-position:center}.image-slot{min-height:160px}.image-slot img{width:100%;max-height:180px;object-fit:contain;object-position:center}.image-slot.tall img{max-height:420px}.fallback-title{color:var(--navy);font-size:24px;font-weight:800}.eyebrow{color:var(--tide);font-weight:800;margin:18px 0 4px}.hero h1,.article-shell h1{color:var(--navy);font-size:clamp(28px,4vw,32px);line-height:1.3;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}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:18px auto}.content-card{padding:18px}.content-card h2,.section-block h2,.article-shell h2{color:var(--navy);line-height:1.35}.content-card h2{font-size:22px}.content-card p{margin-bottom:0}.section-block{margin:18px auto;padding:22px}.split{display:grid;grid-template-columns:1.1fr .9fr;gap:24px;align-items:center}.split.reverse{grid-template-columns:.9fr 1.1fr}.section-block p{margin:0 0 12px}.section-block .more{font-weight:700}.article-shell{width:min(calc(100% - 32px),900px);margin:24px auto;padding:28px}.article-shell .intro{font-size:17px;color:var(--muted);border-left:4px solid var(--sand);padding-left:16px}.article-shell section{padding:12px 0;border-top:1px solid var(--border)}.article-shell section:first-of-type{border-top:0}.article-shell h2{font-size:22px}.article-shell h3{color:var(--navy)}.article-shell ul,.article-shell ol{padding-left:1.25em}.notice{background:var(--paper);border:1px solid var(--border);border-left:4px solid var(--sky);padding:14px 16px;border-radius:10px}.deep-panel{background:var(--navy);color:var(--mist);border-radius:12px;padding:22px}.deep-panel h2,.deep-panel h3{color:#fff}.deep-panel a{color:#fff}.faq-item{padding:18px 0;border-top:1px solid var(--border)}.faq-item:first-child{border-top:0}.faq-item h2{font-size:20px;margin-bottom:6px}.overlay{position:fixed;inset:0;background:rgba(14,58,92,.42);z-index:70;opacity:0;pointer-events:none;transition:.2s}.overlay.show{opacity:1;pointer-events:auto}.tide-bay,.search-layer{position:fixed;z-index:80;visibility:hidden;pointer-events:none;background:#fff;box-shadow:var(--shadow);transition:transform .22s ease,opacity .22s ease;opacity:0}.tide-bay{top:78px;left:0;width:300px;height:min(480px,calc(100vh - 90px));border-radius:0 0 12px 0;transform:translateY(-12px);overflow:auto}.tide-bay.open,.search-layer.open{visibility:visible;pointer-events:auto;opacity:1;transform:translateY(0)}.bay-head,.search-head{position:sticky;top:0;background:#fff;display:flex;align-items:center;justify-content:space-between;padding:12px 14px;border-bottom:1px solid var(--border);z-index:2}.bay-brand{display:flex;align-items:center;gap:8px;color:var(--navy)}.bay-brand img{height:24px;max-width:120px;object-fit:contain}.close-btn{width:44px;height:44px;border:0;background:var(--paper);color:var(--navy);border-radius:10px;font-size:24px;cursor:pointer}.bay-groups{padding:4px 14px 18px}.bay-groups section{border-bottom:1px solid var(--border);padding:10px 0}.bay-groups h2{font-size:14px;color:var(--soft);margin:0 0 4px}.bay-groups a{display:block;padding:8px 4px;color:var(--text)}.bay-groups b{display:block;color:var(--navy)}.bay-groups span{display:block;color:var(--muted);font-size:13px}.search-layer{top:78px;left:max(16px,calc((100vw - var(--max))/2));width:440px;border-radius:0 0 12px 12px;transform:translateY(-10px);padding-bottom:16px}.search-layer label{display:block;padding:14px 16px 8px;color:var(--muted)}.search-layer input{width:calc(100% - 32px);margin:0 16px;padding:12px 14px;border:1px solid var(--sky);border-radius:10px;background:#fff;color:var(--text)}.preset-links{display:grid;grid-template-columns:repeat(2,1fr);gap:8px;padding:14px 16px 0}.preset-links a{min-height:44px;display:flex;align-items:center;padding:8px 10px;border:1px solid var(--border);border-radius:10px;color:var(--navy);background:var(--paper)}.modal-open{overflow:hidden}.site-footer{margin-top:36px;background:var(--navy);color:var(--mist);padding:30px 0 22px}.footer-top{display:grid;grid-template-columns:240px 1fr;gap:30px}.footer-brand{display:flex;align-items:center;gap:10px}.footer-brand img{height:26px;max-width:130px;object-fit:contain}.footer-brand strong,.footer-brand span{display:block;color:#fff}.footer-brand span{font-size:12px;color:var(--mist)}.footer-groups{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.footer-groups h2{font-size:14px;color:#fff}.footer-groups a{display:block;color:var(--mist);padding:3px 0}.footer-note{border-top:1px solid rgba(255,255,255,.12);margin-top:22px;padding-top:14px;font-size:14px}.mobile-bottom{display:none}
@media(max-width:780px){.tide-bridge{display:none}main{padding-top:94px}.shell{width:min(calc(100% - 32px),var(--max))}.tide-line{height:28px}.stage-actions{gap:6px}.compact{padding:6px 10px}.grid-3,.split,.split.reverse{grid-template-columns:1fr}.grid-3{gap:14px}.hero,.section-block{padding:18px}.article-shell{padding:20px}.tide-bay{top:78px;width:calc(100% - 16px);height:62vh;max-height:560px;border-radius:0 0 12px 0}.search-layer{top:78px;left:8px;width:calc(100% - 16px)}.footer-top{grid-template-columns:1fr}.footer-groups{grid-template-columns:repeat(2,1fr)}.site-footer{padding-bottom:80px}.mobile-bottom{position:fixed;z-index:65;left:0;right:0;bottom:0;display:grid;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 var(--border);box-shadow:0 -8px 20px rgba(14,58,92,.08)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;color:var(--navy);min-height:50px;font-size:14px}.mobile-bottom a.active{background:var(--tide);color:#fff;text-decoration:none}.overlay{z-index:70}.brand-logo{max-width:150px}.fallback-title{font-size:20px}}
@media(max-width:390px){.tide-line-inner span{font-size:12px}.stage-actions .compact{font-size:14px;padding:6px 9px}.footer-groups{grid-template-columns:1fr 1fr}.preset-links{grid-template-columns:1fr}}