:root{--paper:#F3F8FD;--deep:#DCEAF6;--white:#FFFFFF;--navy:#0E3A5C;--text:#24384C;--muted:#5A7388;--soft:#7A93A8;--sky:#5BA3D0;--tide:#3D7EA6;--mist:#C5E4F5;--sand:#E8C9A0;--line: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(--paper);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.72;overflow-x:hidden}body.panel-open{overflow:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}.site-shell{width:min(1120px,calc(100% - 32px));margin:0 auto}.site-header{position:fixed;top:0;left:0;right:0;z-index:70}.tide-line{height:28px;background:var(--tide);color:#fff;font-size:13px}.tide-line-inner,.tide-stage-inner{height:100%;display:flex;align-items:center;justify-content:space-between}.text-button,.stage-button,.icon-close{border:0;cursor:pointer}.text-button{background:transparent;color:#fff;min-height:28px;padding:0 8px}.tide-stage{height:50px;background:#fff;border-bottom:1px solid var(--mist)}.brand-link{display:flex;align-items:center;min-width:0}.brand-logo{display:block;max-width:170px;height:26px;object-fit:contain;object-position:left center}.brand-text{font-weight:800;color:var(--navy);font-size:20px}.stage-actions{display:flex;gap:8px;align-items:center}.stage-button{min-height:44px;padding:0 14px;border:1px solid var(--sky);background:#fff;color:var(--navy);border-radius:10px;display:inline-flex;align-items:center;justify-content:center}.stage-button-primary{background:var(--tide);color:#fff;border-color:var(--tide)}.tide-bridge{height:64px;background:var(--mist);border-bottom:1px solid var(--line)}.tide-bridge-inner{height:100%;display:grid;grid-template-columns:repeat(5,1fr)}.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,.8)}.tide-bridge a:last-child{border-right:0}.tide-bridge a.active{background:#fff}.site-main{padding-top:166px;padding-bottom:36px;min-height:70vh}.hero,.section-card,.article-card,.info-strip,.faq-item{background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:12px}.hero{padding:22px;margin-bottom:22px}.hero-media,.content-media{background:linear-gradient(180deg,var(--deep),#eef7fc);border-radius:12px;display:flex;align-items:center;justify-content:center;overflow:hidden}.hero-media{min-height:180px;max-height:200px}.hero-media img{width:100%;height:200px;object-fit:contain;object-position:center}.hero-copy{padding-top:18px}.eyebrow{margin:0 0 6px;color:var(--tide);font-weight:800;font-size:14px}.hero h1,.page-hero h1{font-size:clamp(28px,4vw,32px);line-height:1.25;margin:0 0 12px;color:var(--navy)}h2{color:var(--navy);line-height:1.35}p{margin:0 0 14px}.hero-actions,.card-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}.btn{min-height:44px;padding:10px 16px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;font-weight:700}.btn-primary{background:var(--tide);color:#fff}.btn-secondary{background:#fff;color:var(--navy);border:1px solid var(--sky)}.discussion-grid,.three-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-bottom:22px}.section-card{padding:18px}.section-card h2{font-size:22px;margin:14px 0 8px}.section-card .content-media{height:170px}.section-card .content-media img{width:100%;height:170px;object-fit:contain}.stack{display:grid;gap:22px}.feature-row{display:grid;grid-template-columns:1.05fr .95fr;gap:22px;align-items:center}.feature-row.reverse{grid-template-columns:.95fr 1.05fr}.feature-row.reverse .feature-copy{order:2}.feature-row.reverse .content-media{order:1}.feature-copy{padding:4px 2px}.feature-copy h2{margin:0 0 10px;font-size:25px}.content-media{min-height:160px}.content-media img{width:100%;max-height:280px;object-fit:contain;object-position:center}.app-section .content-media img{max-height:420px}.after-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:24px}.info-strip{padding:20px}.info-strip h2{margin-top:0}.page-wrap{width:min(900px,calc(100% - 32px));margin:0 auto}.page-hero{background:linear-gradient(135deg,#fff 0%,#edf7fc 100%);border:1px solid var(--line);border-radius:12px;padding:24px;box-shadow:var(--shadow);margin-bottom:22px}.page-hero p{font-size:17px}.article-card{padding:24px;margin-bottom:18px}.article-card h2{margin:0 0 10px;font-size:23px}.article-card h3{color:var(--navy);margin:20px 0 8px}.article-card ul{padding-left:22px}.article-card li{margin:6px 0}.article-image{margin:16px 0;background:var(--deep);border-radius:12px;display:flex;justify-content:center}.article-image img{max-width:100%;max-height:320px;object-fit:contain}.note-box{border-left:4px solid var(--sand);background:#fffaf3;padding:14px 16px;border-radius:0 10px 10px 0;margin:16px 0}.site-footer{background:var(--navy);color:var(--mist);padding:34px 0 calc(26px + env(safe-area-inset-bottom))}.footer-brand{display:flex;gap:32px;align-items:flex-start;padding-bottom:24px;border-bottom:1px solid rgba(197,228,245,.18)}.footer-brand-mark{min-width:220px;display:flex;align-items:center;gap:12px}.footer-brand-mark img{filter:none}.footer-brand-mark strong{display:block;color:#fff;font-size:18px}.footer-brand-mark span{display:block;font-size:12px;letter-spacing:.08em}.footer-brand p{margin:0;max-width:720px}.footer-groups{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;padding:26px 0}.footer-group h2{font-size:16px;color:#fff;margin:0 0 10px}.footer-group a{display:block;padding:4px 0;color:var(--mist)}.footer-bottom{font-size:13px;color:#b8d7e8}.page-overlay{position:fixed;inset:0;background:rgba(14,58,92,.32);z-index:80}.tide-bay,.search-layer{position:fixed;z-index:90;background:#fff;box-shadow:0 20px 50px rgba(14,58,92,.22);visibility:hidden;pointer-events:none;opacity:0;transition:.2s ease}.tide-bay.open,.search-layer.open{visibility:visible;pointer-events:auto;opacity:1}.tide-bay{top:78px;left:0;width:300px;height:min(480px,calc(100vh - 90px));overflow:auto;border-radius:0 0 12px 0;padding:16px}.bay-head,.search-head{display:flex;align-items:center;justify-content:space-between;gap:12px}.bay-brand{display:flex;align-items:center;gap:10px;color:var(--navy);font-weight:800}.icon-close{width:44px;height:44px;background:transparent;color:var(--navy);font-size:28px;border-radius:10px}.icon-close:hover,.icon-close:focus-visible{background:var(--deep)}.bay-group{padding:12px 0;border-top:1px solid var(--line)}.bay-group h2{font-size:14px;margin:0 0 6px}.bay-group a{display:block;padding:8px 6px;border-radius:8px}.bay-group a:hover,.bay-group a:focus-visible{background:var(--paper)}.bay-group strong{display:block;color:var(--navy);font-size:15px}.bay-group span{display:block;color:var(--muted);font-size:12px}.search-layer{top:86px;left:max(16px,calc((100vw - 1120px)/2 + 16px));width:min(440px,calc(100% - 32px));border-radius:12px;padding:18px}.search-look{display:grid;grid-template-columns:auto 1fr;align-items:center;gap:10px;margin-top:10px;border:1px solid var(--line);border-radius:10px;padding:8px 12px;color:var(--navy)}.search-look input{border:0;outline:0;width:100%;background:transparent;color:var(--muted)}.search-links{display:grid;grid-template-columns:repeat(2,1fr);gap:8px;margin-top:12px}.search-links a{min-height:44px;display:flex;align-items:center;padding:8px 12px;background:var(--paper);border-radius:10px;color:var(--navy);font-weight:700}.mobile-bottom{display:none}.btn:hover,.btn:focus-visible,.stage-button:hover,.stage-button:focus-visible,.tide-bridge a:focus-visible,.footer-group a:focus-visible,.mobile-bottom a:focus-visible{outline:3px solid rgba(91,163,208,.3);outline-offset:2px}.faq-list{display:grid;gap:14px}.faq-item{padding:20px}.faq-item h2{font-size:20px;margin:0 0 8px}.policy-list{display:grid;gap:12px}.policy-list article{padding:18px;border:1px solid var(--line);border-radius:10px;background:#fff}.policy-list h2{font-size:21px;margin:0 0 8px}.split-links{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.split-links a{padding:16px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--navy);font-weight:700}
@media (max-width:760px){.site-shell,.page-wrap{width:calc(100% - 32px)}.tide-line{height:28px}.tide-stage{height:50px}.tide-bridge{display:none}.site-main{padding-top:94px;padding-bottom:76px}.brand-logo{max-width:138px;height:24px}.stage-actions{gap:6px}.stage-button{padding:0 11px;min-height:44px}.hero{padding:16px}.hero-media{min-height:150px}.hero-media img{height:180px}.discussion-grid,.three-grid,.after-grid{grid-template-columns:1fr}.feature-row,.feature-row.reverse{grid-template-columns:1fr}.feature-row.reverse .feature-copy,.feature-row.reverse .content-media{order:initial}.section-card{padding:16px}.page-hero,.article-card{padding:18px}.footer-brand{flex-direction:column;gap:16px}.footer-groups{grid-template-columns:repeat(2,1fr)}.tide-bay{top:78px;width:calc(100% - 16px);height:62vh;border-radius:0 0 12px 0}.search-layer{top:84px;left:16px;width:calc(100% - 32px)}.mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:65;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(--line);box-shadow:0 -8px 22px rgba(14,58,92,.08)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;min-width:0;min-height:50px;color:var(--navy);font-size:14px}.mobile-bottom a.active{background:var(--tide);color:#fff}.search-links{grid-template-columns:1fr}.split-links{grid-template-columns:1fr}}
@media (max-width:390px){.brand-text{font-size:18px}.stage-button{font-size:14px;padding:0 9px}.tide-line{font-size:12px}.site-shell,.page-wrap{width:calc(100% - 32px)}}