:root{--bg:#F5FAFE;--deep:#E7F2FA;--paper:#FFFFFF;--soft:#D7EAF6;--title:#16324A;--text:#2A4156;--sub:#4E6A80;--muted:#6E8899;--blue:#4AA3E0;--bright:#6BB8EC;--navy:#1B4A6E;--mist:#EAF5FC;--line:rgba(74,163,224,.16);--line-strong:rgba(74,163,224,.42);--shadow:0 12px 28px rgba(27,74,110,.08);--radius:12px;--wrap:1120px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden}body.locked{overflow:hidden}a{color:var(--navy);text-decoration:none}a:hover{text-decoration:none}button,input{font:inherit}button{cursor:pointer}.wrap{width:min(var(--wrap),calc(100% - 32px));margin:0 auto}.skip-link{position:fixed;left:12px;top:-80px;z-index:1000;background:var(--paper);color:var(--navy);padding:10px 14px;border-radius:8px;box-shadow:var(--shadow)}.skip-link:focus{top:10px}
.site-header{position:fixed;z-index:70;left:0;right:0;top:0}.topline{height:22px;background:var(--navy);color:#fff;font-size:12px}.topline-inner{height:22px;display:flex;align-items:center;justify-content:space-between}.top-search-btn{border:0;background:transparent;color:#fff;height:22px;padding:0 4px}.masthead{height:60px;background:var(--paper);border-bottom:1px solid var(--line)}.masthead-inner{height:60px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px}.brand-home{justify-self:start;display:inline-flex;align-items:center;min-height:44px}.brand-home img,.footer-brand img,.drawer-brand img{height:28px;width:auto;max-width:130px;object-fit:contain;object-position:center}.brand-fallback{font-size:16px;font-weight:800;letter-spacing:.08em;color:var(--title)}.drawer-open,.app-link{min-height:44px;display:inline-flex;align-items:center;justify-content:center;border-radius:10px;font-size:14px}.drawer-open{border:1px solid var(--line-strong);background:var(--paper);color:var(--navy);padding:0 18px}.app-link{justify-self:end;padding:0 18px;background:linear-gradient(135deg,#6BB8EC 0%,#4AA3E0 55%,#1B4A6E 100%);color:#fff}.tagbar{height:40px;background:var(--mist);border-bottom:1px solid var(--line)}.tagbar-inner{height:40px;display:flex;align-items:center;justify-content:center;gap:8px}.tag-link{height:32px;min-width:76px;padding:0 16px;display:inline-flex;align-items:center;justify-content:center;border-radius:9px;font-size:13px;color:var(--navy)}.tag-link:hover,.tag-link:focus-visible{background:var(--paper)}.tag-link.is-current{background:var(--blue);color:#fff}.site-main{padding-top:138px;padding-bottom:56px;min-height:70vh}
.page-shell{padding:34px 0 20px}.page-hero{background:var(--paper);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:14px;padding:30px;margin-bottom:24px}.eyebrow{font-size:12px;letter-spacing:.12em;color:var(--blue);font-weight:700;text-transform:uppercase}.page-hero h1,.cover-copy h1{font-size:24px;line-height:1.3;color:var(--title);margin:8px 0 12px}.page-hero p{margin:0;color:var(--sub);max-width:820px}.content-section{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:26px;margin:18px 0}.content-section h2{font-size:20px;line-height:1.4;color:var(--title);margin:0 0 12px}.content-section h3{font-size:16px;line-height:1.45;color:var(--title);margin:18px 0 8px}.content-section p{margin:0 0 12px}.content-section p:last-child{margin-bottom:0}.lead{font-size:16px;color:var(--sub)}.note-box{background:var(--mist);border-left:4px solid var(--blue);padding:16px 18px;border-radius:10px;margin:16px 0;color:var(--navy)}.muted{color:var(--muted)}
.btn-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.btn{height:44px;display:inline-flex;align-items:center;justify-content:center;border-radius:10px;padding:0 18px;font-size:14px;font-weight:700}.btn-primary{background:linear-gradient(135deg,#6BB8EC 0%,#4AA3E0 55%,#1B4A6E 100%);color:#fff}.btn-secondary{background:#fff;border:1px solid var(--line-strong);color:var(--navy)}.btn:hover{transform:translateY(-1px)}.btn:focus-visible,.drawer-open:focus-visible,.app-link:focus-visible,.tag-link:focus-visible,.mobile-bottom a:focus-visible,.top-search-btn:focus-visible,.drawer a:focus-visible,.search-presets a:focus-visible{outline:3px solid rgba(107,184,236,.45);outline-offset:2px}
.cover{padding:28px 0 10px}.cover-card{background:var(--paper);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:14px;overflow:hidden}.cover-media{height:260px;background:var(--mist);display:flex;align-items:center;justify-content:center}.cover-media img{width:100%;height:100%;object-fit:contain;object-position:center}.cover-copy{padding:26px 28px 30px}.cover-brand{font-size:13px;color:var(--blue);font-weight:700}.cover-copy .intro{max-width:820px;color:var(--sub);margin:0}.media-slot{height:200px;background:var(--mist);border:1px solid var(--line);border-radius:12px;display:flex;align-items:center;justify-content:center;overflow:hidden}.media-slot img{width:100%;height:100%;object-fit:contain;object-position:center}.media-slot.small{height:180px}.media-slot.tall{height:340px}.media-slot.banner{height:260px}.media-slot:empty::after{content:"";width:64%;height:64%;border:1px dashed var(--line-strong);border-radius:12px}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin:20px 0}.card{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:18px}.card h2,.card h3{color:var(--title);margin:12px 0 8px}.card h2{font-size:20px}.card h3{font-size:16px}.card p{margin:0;color:var(--sub)}.card .media-slot{margin:-2px -2px 14px}.numbered-list{list-style:none;padding:0;margin:0;display:grid;gap:12px}.numbered-list li{display:grid;grid-template-columns:56px 1fr;gap:16px;align-items:start;background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:16px}.num{font-weight:800;color:var(--blue);font-size:18px}.numbered-list h3{margin:0 0 6px}.numbered-list p{margin:0;color:var(--sub)}.shelf-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.shelf-item{background:var(--paper);border:1px solid var(--line);border-left:4px solid var(--blue);border-radius:10px;padding:16px}.shelf-item strong{display:block;color:var(--title);margin-bottom:6px}.shelf-item p{margin:0;color:var(--sub)}
.timeline{position:relative;margin:8px 0;padding-left:28px}.timeline::before{content:"";position:absolute;left:8px;top:4px;bottom:4px;width:2px;background:var(--soft)}.timeline-item{position:relative;background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:16px 18px;margin:0 0 14px}.timeline-item::before{content:"";position:absolute;left:-25px;top:20px;width:12px;height:12px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 5px var(--mist)}.status{display:inline-flex;align-items:center;min-height:28px;padding:0 10px;border-radius:999px;background:var(--mist);color:var(--navy);font-size:12px;font-weight:700;margin-bottom:8px}.article-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.article-card{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:20px}.article-card h2,.article-card h3{margin:0 0 8px;color:var(--title)}.article-card p{margin:0;color:var(--sub)}.index-links{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.index-links a{min-height:72px;background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:14px;display:flex;flex-direction:column;justify-content:center}.index-links strong{color:var(--title)}.index-links span{font-size:13px;color:var(--muted)}
.site-footer{background:var(--navy);color:#E7F2FA;border-top:1px solid rgba(234,245,252,.4);padding:34px 0 76px}.footer-brand-row{padding-bottom:18px;border-bottom:1px solid rgba(234,245,252,.18)}.footer-brand{display:flex;align-items:center;gap:12px}.footer-brand strong,.footer-brand span{display:block}.footer-brand strong{font-size:16px}.footer-brand span{font-size:12px;opacity:.82}.footer-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;padding:24px 0}.footer-grid section h2{font-size:13px;color:#fff;margin:0 0 8px}.footer-grid a{display:block;color:#E7F2FA;font-size:13px;padding:5px 0}.footer-grid a:hover{text-decoration:underline}.footer-note{font-size:13px;color:#E7F2FA;border-top:1px solid rgba(234,245,252,.18);padding-top:16px}.footer-note p{margin:4px 0}
.overlay{position:fixed;inset:0;background:rgba(22,50,74,.38);z-index:80;opacity:0;pointer-events:none;transition:opacity .22s ease}.overlay.is-visible{opacity:1;pointer-events:auto}.drawer{position:fixed;z-index:90;right:0;top:0;height:100dvh;width:min(400px,86vw);background:var(--paper);box-shadow:-14px 0 32px rgba(27,74,110,.16);transform:translateX(104%);visibility:hidden;pointer-events:none;transition:transform .24s ease,visibility .24s ease;overflow-y:auto;overscroll-behavior:contain}.drawer-active .drawer{transform:translateX(0);visibility:visible;pointer-events:auto}.drawer-head{height:64px;position:sticky;top:0;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 18px;z-index:2}.drawer-brand{display:flex;align-items:center;gap:10px;color:var(--title)}.drawer-close,.search-head button{min-height:44px;border:1px solid var(--line-strong);background:#fff;color:var(--navy);border-radius:9px;padding:0 12px}.drawer-groups{padding:8px 16px 30px}.drawer-groups section{padding:12px 0;border-bottom:1px solid var(--line)}.drawer-groups h2{font-size:13px;color:var(--blue);margin:0 0 6px}.drawer-groups a{display:block;border-radius:10px;padding:10px 8px}.drawer-groups a:hover{background:var(--mist)}.drawer-groups b{display:block;color:var(--title);font-size:14px}.drawer-groups span{display:block;color:var(--muted);font-size:12px;line-height:1.55;margin-top:2px}
.search-panel{position:fixed;z-index:91;left:0;right:0;top:82px;visibility:hidden;pointer-events:none;transform:translateY(-14px);opacity:0;transition:.2s ease}.search-active .search-panel{visibility:visible;pointer-events:auto;transform:translateY(0);opacity:1}.search-card{width:min(760px,calc(100% - 32px));margin:12px auto;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:14px;padding:22px}.search-head{display:flex;align-items:center;justify-content:space-between}.search-head h2{font-size:20px;color:var(--title);margin:0}.search-card p{margin:8px 0 14px;color:var(--sub)}.search-form label{display:block;font-size:13px;color:var(--sub);margin-bottom:6px}.search-row{display:grid;grid-template-columns:1fr auto;gap:8px}.search-row input{min-width:0;height:44px;border:1px solid var(--line-strong);border-radius:10px;padding:0 12px;color:var(--text);background:#fff}.search-row button{height:44px;border:0;border-radius:10px;padding:0 18px;background:linear-gradient(135deg,#6BB8EC 0%,#4AA3E0 55%,#1B4A6E 100%);color:#fff}.search-presets{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}.search-presets a{min-height:44px;padding:0 12px;border:1px solid var(--line);border-radius:999px;display:inline-flex;align-items:center;background:var(--mist);font-size:13px}.mobile-bottom{display:none}
.qa-list{display:grid;gap:12px}.qa-item{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:20px}.qa-item h2{font-size:16px;margin:0 0 8px;color:var(--title)}.qa-item p{margin:0;color:var(--sub)}.policy-list{display:grid;gap:12px}.policy-item{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:20px}.policy-item h2{font-size:18px;margin:0 0 8px;color:var(--title)}.policy-item p{margin:0 0 8px}.policy-item p:last-child{margin-bottom:0}.app-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(260px,360px);gap:22px;align-items:start}.icon-chip{display:flex;align-items:center;gap:14px}.icon-slot{width:48px;height:48px;background:var(--mist);border:1px solid var(--line);border-radius:12px;display:flex;align-items:center;justify-content:center;overflow:hidden}.icon-slot img{width:48px;height:48px;object-fit:contain}
@media (max-width:860px){.card-grid,.article-grid{grid-template-columns:1fr 1fr}.index-links{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}.shelf-list{grid-template-columns:1fr}.app-layout{grid-template-columns:1fr}.media-slot.tall{height:320px}}
@media (max-width:700px){body{padding-bottom:calc(48px + env(safe-area-inset-bottom))}.site-main{padding-top:82px;padding-bottom:24px}.tagbar{display:none}.wrap{width:calc(100% - 32px)}.masthead-inner{grid-template-columns:1fr auto 1fr;gap:8px}.brand-home{min-width:44px}.drawer-open,.app-link{padding:0 12px;font-size:13px}.cover{padding-top:18px}.cover-copy{padding:20px}.cover-media,.media-slot.banner{height:230px}.page-shell{padding-top:20px}.page-hero,.content-section{padding:20px}.card-grid,.article-grid{grid-template-columns:1fr}.index-links{grid-template-columns:1fr 1fr}.numbered-list li{grid-template-columns:44px 1fr}.footer-grid{grid-template-columns:1fr 1fr;gap:18px}.site-footer{padding-bottom:calc(74px + env(safe-area-inset-bottom))}.mobile-bottom{position:fixed;z-index:75;left:0;right:0;bottom:0;height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);display:grid;grid-template-columns:repeat(5,1fr);background:#fff;border-top:1px solid var(--line)}.mobile-bottom a{min-width:0;height:48px;display:flex;align-items:center;justify-content:center;font-size:12px;color:var(--navy)}.mobile-bottom a.is-current{background:var(--blue);color:#fff}.search-panel{top:0;bottom:0;background:var(--navy);padding:0;transform:none}.search-active .search-panel{display:block}.search-card{width:100%;height:100%;margin:0;border:0;border-radius:0;background:var(--navy);color:#fff;padding:18px 16px;overflow-y:auto}.search-head h2,.search-card p,.search-form label{color:#fff}.search-head button{background:transparent;border-color:rgba(255,255,255,.4);color:#fff}.search-presets a{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.22);color:#fff}.search-row{grid-template-columns:1fr}.search-row button{width:100%}.footer-note{padding-bottom:8px}}
@media (max-width:430px){.cover-media,.media-slot.banner{height:205px}.media-slot.small{height:160px}.media-slot{height:180px}.media-slot.tall{height:300px}.index-links{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.page-hero h1,.cover-copy h1{font-size:24px}}

.mt-16{margin-top:16px!important}