:root{
--bg:#F5FAFE;--bg-deep:#E7F2FA;--card:#FFFFFF;--sub:#D7EAF6;--title:#16324A;--text:#2A4156;--muted:#4E6A80;--aux:#6E8899;--blue:#4AA3E0;--blue2:#6BB8EC;--deep:#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);--max:1120px;--radius:12px}
*{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",sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden}body.modal-open{overflow:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}.topline{position:fixed;z-index:70;left:0;right:0;top:0;height:22px;background:var(--deep);color:#fff}.topline-inner,.masthead-inner,.section-tabs-inner{max-width:var(--max);margin:auto;height:100%;display:flex;align-items:center;padding:0 16px}.topline-inner{justify-content:space-between;font-size:12px}.top-brand{font-weight:700;letter-spacing:.04em}.text-button{border:0;background:transparent;color:#fff;min-width:44px;height:22px;padding:0 2px}.masthead{position:fixed;z-index:68;left:0;right:0;top:22px;height:60px;background:#fff;border-bottom:1px solid var(--line)}.masthead-inner{justify-content:space-between;gap:14px}.brand-lockup,.drawer-trigger,.app-link{min-height:44px;display:flex;align-items:center;justify-content:center}.brand-lockup{justify-content:flex-start;min-width:96px}.brand-logo{height:28px;max-width:120px;object-fit:contain}.brand-fallback{font-size:16px;font-weight:800;color:var(--deep)}.drawer-trigger{border:1px solid var(--line-strong);background:var(--mist);border-radius:10px;color:var(--deep);font-weight:700;min-width:86px}.app-link{color:#fff;background:linear-gradient(135deg,#6BB8EC 0%,#4AA3E0 55%,#1B4A6E 100%);border-radius:10px;padding:0 17px;font-size:14px;font-weight:700;white-space:nowrap}.section-tabs{position:fixed;z-index:66;left:0;right:0;top:82px;height:40px;background:var(--mist);border-bottom:1px solid var(--line)}.section-tabs-inner{justify-content:center;gap:8px}.section-tabs a{height:30px;display:flex;align-items:center;padding:0 18px;border-radius:8px;font-size:13px;color:var(--deep)}.section-tabs a.is-active{background:var(--blue);color:#fff}.site-main{max-width:var(--max);margin:0 auto;padding:154px 16px 56px;min-height:65vh}.page-shell{display:grid;gap:24px}.page-kicker{font-size:12px;color:var(--blue);font-weight:800;letter-spacing:.08em;text-transform:uppercase;margin-bottom:8px}.page-hero{background:linear-gradient(180deg,#fff 0%,#F7FBFE 100%);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:14px;padding:28px}.page-hero h1{margin:0;color:var(--title);font-size:24px;line-height:1.3}.page-hero p{max-width:860px;margin:12px 0 0;color:var(--muted)}h1,h2,h3{color:var(--title)}h2{font-size:20px;line-height:1.4;margin:0 0 10px}h3{font-size:16px;margin:0 0 8px}.lead{font-size:16px;color:var(--muted)}.section{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:0 8px 20px rgba(27,74,110,.04)}.section + .section{margin-top:0}.section p{margin:0 0 12px}.section p:last-child{margin-bottom:0}.grid-2,.grid-3,.grid-4{display:grid;gap:18px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px;min-width:0}.card p{margin:0;color:var(--muted)}.card .num{display:inline-flex;width:34px;height:34px;align-items:center;justify-content:center;border-radius:9px;background:var(--mist);color:var(--blue);font-weight:800;margin-bottom:12px}.media-slot{height:180px;border-radius:12px;background:var(--mist);border:1px solid var(--line);display:flex;align-items:center;justify-content:center;overflow:hidden}.media-slot.tall{height:340px}.media-slot.banner{height:260px}.media-slot.medium{height:200px}.media-slot img{width:100%;height:100%;object-fit:contain;object-position:center;display:block}.button-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.btn{min-height:42px;display:inline-flex;align-items:center;justify-content:center;border-radius:10px;padding:0 17px;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(--deep)}.btn:hover,.app-link:hover,.drawer-trigger:hover{filter:brightness(.98);transform:translateY(-1px)}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(74,163,224,.28);outline-offset:2px}.cover-copy{padding:22px 6px 4px}.cover-copy .brand-line{font-size:16px;font-weight:800;color:var(--deep)}.cover-copy h1{margin:4px 0 8px;font-size:24px;line-height:1.3}.home-section{margin-top:24px}.home-section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:12px}.home-section-head p{margin:0;color:var(--aux);font-size:13px}.issue-layout,.app-layout{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(260px,.7fr);gap:20px;align-items:stretch}.issue-copy{display:flex;flex-direction:column;justify-content:center}.number-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:16px}.number-list a{display:flex;align-items:center;gap:10px;background:var(--mist);border:1px solid var(--line);padding:12px;border-radius:10px}.number-list strong{color:var(--blue)}.shelf-list{display:grid;gap:10px}.shelf-item{display:grid;grid-template-columns:74px 1fr auto;align-items:center;gap:14px;padding:15px 16px;background:#fff;border:1px solid var(--line);border-radius:12px}.shelf-tag{font-size:12px;color:var(--blue);font-weight:800}.shelf-item p{margin:0;color:var(--muted)}.shelf-item span:last-child{color:var(--aux);font-size:13px}.big-number-list{display:grid;gap:10px}.big-number{display:grid;grid-template-columns:58px 1fr;gap:14px;padding:16px;background:#fff;border:1px solid var(--line);border-radius:12px}.big-number>strong{font-size:26px;color:var(--blue);line-height:1}.big-number p{margin:4px 0 0;color:var(--muted)}.timeline{position:relative;display:grid;gap:18px;margin-left:8px}.timeline:before{content:"";position:absolute;left:8px;top:6px;bottom:6px;width:2px;background:var(--sub)}.timeline-item{position:relative;padding-left:34px}.timeline-dot{position:absolute;left:0;top:6px;width:18px;height:18px;border:4px solid var(--mist);background:var(--blue);border-radius:50%}.timeline-item .status{display:inline-flex;padding:2px 9px;border-radius:999px;background:var(--mist);color:var(--deep);font-size:12px;font-weight:700;margin-bottom:6px}.note-strip{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.note-strip article{background:linear-gradient(180deg,#fff,#F6FBFE);border:1px solid var(--line);border-radius:12px;padding:18px}.index-list{display:grid;gap:10px}.index-list a{display:flex;justify-content:space-between;gap:16px;align-items:center;padding:15px 16px;background:#fff;border:1px solid var(--line);border-radius:10px}.index-list span{color:var(--aux);font-size:13px}.term-list{display:grid;gap:12px}.term-list section{padding:18px;background:#fff;border:1px solid var(--line);border-radius:12px}.term-list p{margin:0}.faq-list{display:grid;gap:12px}.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px}.faq-item h2{font-size:16px;margin-bottom:8px}.faq-item p{margin:0}.callout{padding:18px;border-radius:12px;background:var(--mist);border:1px solid var(--line-strong);color:var(--deep)}.site-footer{background:var(--deep);color:#E7F2FA;border-top:1px solid rgba(234,245,252,.25)}.footer-inner{max-width:var(--max);margin:auto;padding:34px 16px 80px}.footer-brand{display:flex;align-items:center;gap:12px;padding-bottom:20px;border-bottom:1px solid rgba(234,245,252,.18)}.footer-logo{height:28px;max-width:120px;object-fit:contain}.footer-brand div{display:flex;gap:8px;align-items:baseline}.footer-brand strong{font-size:18px}.footer-brand span{font-size:12px;opacity:.8}.footer-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;margin-top:24px}.footer-grid h2{font-size:13px;color:#fff;margin:0 0 8px}.footer-grid a{display:block;font-size:13px;color:#E7F2FA;padding:4px 0}.footer-note,.copyright{font-size:13px;color:#E7F2FA;opacity:.9}.footer-note{margin:24px 0 8px;padding-top:20px;border-top:1px solid rgba(234,245,252,.18)}.copyright{margin:0}.overlay{position:fixed;z-index:89;inset:0;background:rgba(22,50,74,.36);opacity:0;pointer-events:none;transition:.2s}.overlay.is-open{opacity:1;pointer-events:auto}.drawer{position:fixed;z-index:92;top:0;right:0;width:min(400px,86vw);height:100dvh;background:#fff;box-shadow:-18px 0 40px rgba(27,74,110,.18);transform:translateX(104%);visibility:hidden;pointer-events:none;transition:transform .25s ease,visibility .25s}.drawer.is-open{transform:translateX(0);visibility:visible;pointer-events:auto}.drawer-head{height:74px;display:flex;align-items:center;justify-content:space-between;padding:0 18px;border-bottom:1px solid var(--line)}.drawer-brand{display:flex;align-items:center;gap:10px}.drawer-logo{height:28px;max-width:100px;object-fit:contain}.icon-button{min-height:44px;border:1px solid var(--line-strong);background:#fff;color:var(--deep);border-radius:10px;padding:0 14px}.drawer-scroll{height:calc(100dvh - 74px);overflow:auto;padding:18px}.drawer-group{margin-bottom:22px}.drawer-group h2{font-size:13px;color:var(--aux);margin-bottom:8px}.drawer-group a{display:block;border-top:1px solid var(--line);padding:12px 0}.drawer-group a strong{display:block;font-size:15px;color:var(--title)}.drawer-group a span{display:block;font-size:13px;color:var(--muted);margin-top:2px}.search-panel{position:fixed;z-index:91;left:0;right:0;top:82px;padding:12px 16px;visibility:hidden;pointer-events:none;opacity:0;transition:.2s}.search-panel.is-open{visibility:visible;pointer-events:auto;opacity:1}.search-card{max-width:760px;margin:auto;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:14px;padding:18px}.search-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}.search-card label{display:block;color:var(--muted);margin-bottom:8px}.search-card input{width:100%;height:44px;border:1px solid var(--line-strong);border-radius:10px;padding:0 12px;background:#fff;color:var(--text)}.search-presets{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.search-presets a{min-height:40px;display:flex;align-items:center;padding:0 14px;border-radius:9px;background:var(--mist);color:var(--deep);font-size:13px}.search-tip{font-size:13px;color:var(--aux);margin:10px 0 0}.mobile-bottom{display:none}.split-copy{display:grid;grid-template-columns:180px 1fr;gap:20px}.split-copy .side-title{font-size:13px;color:var(--blue);font-weight:800}.mini-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}.mini-meta span{font-size:12px;padding:3px 9px;border-radius:999px;background:var(--mist);color:var(--deep)}
@media (max-width:820px){.section-tabs{display:none}.site-main{padding-top:114px;padding-bottom:78px}.grid-3,.grid-4{grid-template-columns:1fr 1fr}.issue-layout,.app-layout{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.note-strip{grid-template-columns:1fr}.split-copy{grid-template-columns:1fr;gap:8px}.search-panel{top:0;bottom:0;padding:0;background:var(--deep)}.search-card{min-height:100dvh;border-radius:0;border:0;box-shadow:none;background:var(--deep);color:#fff;padding:22px 16px}.search-head strong,.search-card label,.search-tip{color:#fff}.search-card input{background:#fff}.search-presets a{background:#fff;color:var(--deep)}.search-card .icon-button{color:#fff;border-color:rgba(255,255,255,.4);background:transparent}.mobile-bottom{position:fixed;z-index:60;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{display:flex;align-items:center;justify-content:center;font-size:12px;color:var(--deep);min-width:0}.mobile-bottom a.is-active{background:var(--blue);color:#fff}.footer-inner{padding-bottom:92px}.masthead-inner{gap:8px}.brand-lockup{min-width:60px}.drawer-trigger{min-width:72px}.app-link{padding:0 12px}.page-hero{padding:22px}.shelf-item{grid-template-columns:64px 1fr}.shelf-item span:last-child{display:none}}
@media (max-width:560px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.number-list{grid-template-columns:1fr}.section{padding:20px}.page-hero{padding:20px}.media-slot.banner{height:220px}.media-slot.tall{height:320px}.home-section-head{align-items:flex-start;flex-direction:column;gap:2px}.footer-grid{grid-template-columns:1fr 1fr;gap:18px}.shelf-item{grid-template-columns:56px 1fr}.big-number{grid-template-columns:50px 1fr}.site-main{padding-left:16px;padding-right:16px}}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}