*{box-sizing:border-box}
:root{
    --bg:#E7F4F8;--deep-bg:#D7ECF2;--content:#F3FAFC;--sub:#EAF6F9;
    --title:#163038;--text:#1F3C44;--muted:#4A6E78;--soft:#6A8C96;
    --blue:#7EB8E0;--cyan:#6EC9D4;--deep:#1A3A44;--mist:#F3FAFC;--seaweed:#5A8A6A;
    --border:rgba(26,58,68,.14);--focus:rgba(110,201,212,.50);--shadow:0 12px 28px rgba(22,48,56,.08);--radius:10px
}
html{scroll-behavior:smooth;background:var(--bg)}
body{margin:0;min-width:320px;overflow-x:hidden;background:linear-gradient(180deg,var(--bg) 0%,#edf8fb 48%,var(--bg) 100%);color:var(--text);font-family:"Microsoft YaHei","PingFang SC","Noto Sans CJK SC",Arial,sans-serif;font-size:15px;line-height:1.7}
body.is-locked{overflow:hidden}
a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}img{display:block;max-width:100%;object-fit:contain;object-position:center}button{border:0}
:focus-visible{outline:3px solid var(--focus);outline-offset:3px}
.skip-link{position:fixed;left:16px;top:-60px;z-index:3000;background:var(--mist);color:var(--deep);padding:8px 12px;border-radius:8px}.skip-link:focus{top:8px}
.bar-inner{width:min(1000px,calc(100% - 32px));margin:0 auto}
.tide-brow{position:fixed;z-index:1200;top:0;left:0;right:0;height:20px;background:var(--deep);color:var(--mist);font-size:12px}
.tide-brow .bar-inner{height:20px;display:flex;align-items:center;justify-content:space-between}
.text-button{min-height:20px;padding:0 4px;background:transparent;color:var(--mist);cursor:pointer}
.bay-brand{position:fixed;z-index:1190;top:20px;left:0;right:0;height:54px;background:var(--blue);border-bottom:1px solid rgba(110,201,212,.72)}
.brand-row{height:54px;display:flex;align-items:center;justify-content:space-between;gap:16px}.brand-link{min-height:44px;display:flex;align-items:center}.brand-logo,.footer-logo,.panel-logo{height:24px;width:auto;max-width:150px}.brand-text{font-size:16px;font-weight:800;color:var(--deep)}
.brand-actions{display:flex;align-items:center;gap:8px}.compact-link,.menu-button{min-height:44px;display:inline-flex;align-items:center;justify-content:center;padding:0 14px;border-radius:9px;font-size:14px;white-space:nowrap}.compact-link{background:var(--mist);color:var(--deep);border:1px solid var(--deep)}.menu-button{background:linear-gradient(135deg,var(--blue),var(--cyan));color:var(--title);border:1px solid rgba(22,48,56,.18);cursor:pointer}
.shore-nav{position:fixed;z-index:1180;top:74px;left:0;right:0;height:44px;background:var(--mist);border-bottom:1px solid var(--border)}
.shore-inner{width:min(1000px,calc(100% - 32px));height:44px;margin:0 auto;display:flex;align-items:center;justify-content:center;gap:56px}.shore-item{min-height:44px;min-width:72px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;color:var(--muted);font-size:13px}.shore-dot{width:6px;height:6px;border-radius:50%;background:var(--cyan)}.shore-item.is-current{color:var(--deep);font-weight:700}.shore-item.is-current .shore-dot{background:var(--deep)}
.site-main{padding:146px 16px 64px}.page-shell{width:min(1000px,100%);margin:0 auto}.page-head{margin:0 0 30px}.page-head h1,.intro-line h1{margin:0;color:var(--title);font-size:24px;line-height:1.3}.page-head p,.intro-line p{color:var(--muted);margin:10px 0 0}.eyebrow{font-size:12px;letter-spacing:.08em;color:var(--seaweed);font-weight:800}h2{font-size:20px;line-height:1.45;color:var(--title);margin:0 0 12px}h3{font-size:16px;line-height:1.5;color:var(--title);margin:0 0 8px}p{margin:0 0 14px}.lead{font-size:16px;color:var(--muted)}.text-center{text-align:center}.mt-16{margin-top:16px}
.intro-line{border-left:3px solid var(--cyan);padding:4px 0 4px 18px;margin-bottom:28px}.intro-actions,.section-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.btn-primary,.btn-secondary{min-height:42px;display:inline-flex;align-items:center;justify-content:center;padding:0 18px;border-radius:9px;font-size:14px;white-space:nowrap;transition:transform .15s ease,box-shadow .15s ease,background .15s ease}.btn-primary{background:linear-gradient(135deg,var(--blue) 0%,var(--cyan) 100%);color:var(--title);box-shadow:var(--shadow)}.btn-secondary{background:var(--mist);color:var(--deep);border:1px solid var(--deep)}.btn-primary:hover,.btn-secondary:hover{transform:translateY(-1px)}
.media-slot{width:100%;min-height:130px;background:linear-gradient(135deg,var(--deep-bg),var(--mist));border:1px solid var(--border);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;overflow:hidden}.media-slot img{width:100%;height:100%;object-fit:contain}.short-cover{height:188px;margin:22px 0 34px}.banner-slot{height:200px;margin:18px 0 28px}.app-visual{height:300px}.icon-slot{width:64px;height:64px;min-height:64px;border-radius:14px}.icon-slot img{width:48px;height:48px}
.section-block{margin:26px 0;padding:24px;background:rgba(243,250,252,.88);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.section-block.flat{box-shadow:none;background:var(--sub)}
.zigzag{display:grid;gap:22px;margin:30px 0}.zig-item{display:grid;grid-template-columns:minmax(0,1fr);gap:14px;padding:22px;border:1px solid var(--border);border-radius:var(--radius);background:var(--content)}.zig-item .media-slot{height:190px}.zig-item.reverse .zig-copy{order:1}.zig-item.reverse .media-slot{order:2}
.note-rail{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:28px 0}.note-card{min-height:260px;padding:18px;background:var(--content);border:1px solid var(--border);border-radius:var(--radius);display:flex;flex-direction:column;gap:12px}.note-card .media-slot{height:120px;min-height:120px}
.center-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;max-width:760px;margin:26px auto}.center-card{text-align:center;padding:26px;background:var(--content);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}
.period-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:22px 0}.period-card{padding:20px;background:var(--sub);border-top:3px solid var(--cyan);border-radius:0 0 var(--radius) var(--radius)}
.status-list{display:grid;gap:10px;margin:20px 0}.status-row{display:grid;grid-template-columns:110px 1fr;gap:16px;align-items:start;padding:15px 18px;background:var(--content);border:1px solid var(--border);border-radius:9px}.status-tag{font-weight:800;color:var(--seaweed)}
.app-band{margin:34px 0;padding:28px;background:var(--deep);color:var(--mist);border-radius:12px;display:grid;grid-template-columns:minmax(0,1.1fr) minmax(240px,.9fr);gap:28px;align-items:center}.app-band h2,.app-band h3{color:var(--mist)}.app-band p{color:#dfeff3}.app-brandline{display:flex;align-items:center;gap:12px;margin-bottom:14px}.app-band .icon-slot{background:rgba(243,250,252,.14);border-color:rgba(243,250,252,.22)}.app-band .media-slot{background:#dff2f7;border-color:rgba(243,250,252,.22)}
.method-flow{display:grid;gap:16px;counter-reset:method}.method-step{position:relative;padding:22px 22px 22px 72px;background:var(--content);border:1px solid var(--border);border-radius:var(--radius)}.method-step:before{counter-increment:method;content:counter(method);position:absolute;left:22px;top:22px;width:34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:var(--cyan);color:var(--deep);font-weight:800}
.journal{border-left:3px solid var(--seaweed);padding-left:22px;margin:26px 0}.journal article{padding:18px 0;border-bottom:1px solid var(--border)}.journal article:last-child{border-bottom:0}.check-list{display:grid;gap:12px;margin:24px 0}.check-item{padding:18px 20px 18px 48px;position:relative;background:var(--content);border:1px solid var(--border);border-radius:9px}.check-item:before{content:"✓";position:absolute;left:18px;top:17px;width:20px;height:20px;border-radius:50%;background:var(--deep-bg);color:var(--deep);display:flex;align-items:center;justify-content:center;font-weight:800}.topic-list{display:grid;gap:14px}.topic-item{padding:20px;background:var(--content);border:1px solid var(--border);border-radius:10px}.topic-item strong{color:var(--title)}
.clause-stack{display:grid;gap:16px}.clause{padding:22px;background:rgba(243,250,252,.86);border:1px solid var(--border);border-radius:10px}.faq-list{display:grid;gap:14px}.faq-item{padding:20px;background:var(--content);border:1px solid var(--border);border-radius:10px}.faq-item h2{font-size:16px}.contact-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.contact-card{padding:22px;background:var(--content);border:1px solid var(--border);border-radius:10px}.brand-manifest{display:grid;grid-template-columns:.8fr 1.2fr;gap:24px;align-items:start}.brand-manifest .media-slot{height:240px}.clean-list{margin:0;padding-left:20px}.clean-list li{margin:8px 0}
.site-footer{background:#143038;color:#E7F4F8;border-top:1px solid rgba(110,201,212,.7);padding:34px 16px 24px;font-size:13px}.footer-inner{width:min(1000px,100%);margin:0 auto}.footer-brand{display:grid;grid-template-columns:1fr 1.6fr;gap:24px;align-items:start;padding-bottom:24px;border-bottom:1px solid rgba(231,244,248,.16)}.footer-brand-line{display:flex;align-items:center;gap:10px;font-size:16px}.footer-brand-line span{font-size:12px;color:#b9d6dd}.footer-brand p{margin:0;color:#d3e7eb}.footer-links{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding:24px 0}.footer-links h2{font-size:13px;color:#9edce4;margin-bottom:8px}.footer-links a{display:block;padding:4px 0;color:#E7F4F8}.footer-bottom{display:flex;gap:18px;flex-wrap:wrap;padding-top:16px;border-top:1px solid rgba(231,244,248,.16);color:#bdd3d9}
.page-overlay{position:fixed;inset:0;z-index:1290;background:rgba(20,48,56,.42);opacity:0;visibility:hidden;pointer-events:none;transition:opacity .18s ease}.page-overlay.is-open{opacity:1;visibility:visible;pointer-events:auto}
.bay-panel{position:fixed;z-index:1300;top:20px;left:0;right:0;height:58vh;min-height:360px;background:var(--mist);border-bottom:1px solid var(--border);box-shadow:var(--shadow);transform:translateY(-110%);visibility:hidden;pointer-events:none;transition:transform .22s ease,visibility .22s;overflow:auto;padding:18px 16px 24px}.bay-panel.is-open{transform:translateY(0);visibility:visible;pointer-events:auto}.panel-head{width:min(1000px,100%);margin:0 auto 14px;display:flex;align-items:center;justify-content:space-between}.panel-brand{display:flex;align-items:center;gap:10px;color:var(--deep)}.panel-close,.search-close{min-height:44px;padding:0 14px;border-radius:9px;background:var(--deep);color:var(--mist);cursor:pointer}.panel-groups{width:min(1000px,100%);margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.panel-groups h2{font-size:14px;margin-bottom:8px}.panel-groups a{display:block;padding:8px 0;border-bottom:1px solid var(--border)}.panel-groups a strong{display:block;font-size:14px}.panel-groups a span{display:block;font-size:12px;color:var(--muted)}
.search-layer{position:fixed;z-index:1310;top:74px;left:0;right:0;visibility:hidden;pointer-events:none;opacity:0;transition:opacity .18s ease}.search-layer.is-open{visibility:visible;pointer-events:auto;opacity:1}.search-card{width:min(1000px,calc(100% - 32px));margin:0 auto;background:var(--mist);border:1px solid var(--border);border-radius:0 0 12px 12px;box-shadow:var(--shadow);padding:22px}.search-head{display:flex;align-items:center;justify-content:space-between;gap:16px}.search-head p{margin:4px 0 0;color:var(--muted)}.search-presets{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.search-presets a{min-height:44px;padding:0 16px;display:inline-flex;align-items:center;background:var(--sub);border:1px solid var(--border);border-radius:9px;color:var(--deep)}.mobile-bottom{display:none}
@media (min-width:760px){.zig-item.two-col{grid-template-columns:minmax(260px,.9fr) minmax(0,1.1fr);align-items:center}.zig-item.two-col.reverse .zig-copy{order:2}.zig-item.two-col.reverse .media-slot{order:1}}
@media (max-width:759px){body{padding-bottom:calc(48px + env(safe-area-inset-bottom))}.tide-brow .bar-inner,.bar-inner{width:calc(100% - 32px)}.shore-nav{display:none}.site-main{padding-top:96px;padding-bottom:30px}.brand-actions{gap:6px}.compact-link,.menu-button{padding:0 10px}.note-rail,.period-grid,.center-cards,.contact-grid,.footer-links,.footer-brand,.brand-manifest,.app-band{grid-template-columns:1fr}.note-card{min-height:auto}.status-row{grid-template-columns:1fr;gap:4px}.footer-brand{gap:14px}.panel-groups{grid-template-columns:repeat(2,1fr)}.bay-panel{height:58vh;top:20px}.search-layer{inset:0;top:0;background:var(--deep);padding:22px 16px}.search-card{width:100%;height:100%;background:transparent;border:0;box-shadow:none;color:var(--mist);padding:0}.search-head strong{color:var(--mist);font-size:20px}.search-head p{color:#cde5ea}.search-close{background:var(--mist);color:var(--deep)}.search-presets a{background:rgba(243,250,252,.08);color:var(--mist);border-color:rgba(243,250,252,.22)}.mobile-bottom{display:grid;grid-template-columns:repeat(4,1fr);position:fixed;z-index:1170;left:0;right:0;bottom:0;height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:var(--mist);border-top:1px solid var(--border)}.mobile-bottom a{min-height:48px;display:flex;align-items:center;justify-content:center;font-size:13px;color:var(--muted)}.mobile-bottom a.is-current{background:var(--cyan);color:var(--deep);font-weight:800}.section-block{padding:19px}.app-band{padding:22px}}
@media (max-width:460px){.panel-groups{grid-template-columns:1fr 1fr;gap:12px}.panel-groups a span{font-size:11px}.brand-logo{max-width:120px}}