:root{--bg:#E4E8EA;--deep:#C8D0D4;--paper:#F2F5F6;--soft:#D6DDE0;--title:#1E2A2E;--text:#2E3C42;--muted:#5A6A70;--light:#7A8A90;--teal:#5A7A80;--steel:#6A8890;--copper:#B88860;--border:rgba(30,42,46,.12);--focus:rgba(90,122,128,.48);--shadow:0 12px 28px rgba(30,42,46,.08);--radius:6px;--topH:118px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.7 system-ui,-apple-system,"Segoe UI","Microsoft YaHei",sans-serif;overflow-x:hidden}body.locked{overflow:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}button{color:inherit}.shell{width:min(960px,calc(100% - 32px));margin:0 auto}.skip-link{position:fixed;left:12px;top:-60px;z-index:999;background:var(--paper);padding:10px 14px;border:1px solid var(--focus)}.skip-link:focus{top:8px}.site-top{position:fixed;inset:0 0 auto;z-index:60}.top-strip{height:20px;background:var(--teal);color:var(--paper);font-size:12px}.top-strip-inner{height:20px;display:flex;align-items:center;justify-content:space-between}.text-button{border:0;background:transparent;color:inherit;padding:0 4px;min-height:20px;cursor:pointer}.brand-bar{height:54px;background:var(--paper);border-bottom:1px solid rgba(184,136,96,.55)}.brand-bar-inner{height:54px;display:flex;align-items:center;justify-content:space-between;gap:16px}.brand-link{display:flex;align-items:center;gap:9px;min-height:44px}.brand-logo-slot{width:92px;height:24px;display:flex;align-items:center}.brand-logo{max-width:92px;height:24px;object-fit:contain;object-position:center}.brand-name{font-size:16px;font-weight:750;color:var(--title)}.brand-actions{display:flex;align-items:center;gap:8px}.app-link,.menu-button,.button-primary,.button-secondary{min-height:42px;display:inline-flex;align-items:center;justify-content:center;border-radius:6px;padding:0 15px;font-size:14px;white-space:nowrap}.app-link,.button-secondary{background:var(--paper);border:1px solid var(--teal);color:var(--title)}.menu-button{border:1px solid var(--copper);background:var(--soft);cursor:pointer}.button-primary{background:linear-gradient(135deg,#5A7A80 0%,#B88860 100%);color:var(--paper);border:1px solid transparent;font-weight:700}.short-nav{height:44px;background:var(--paper);border-bottom:1px solid var(--border)}.short-nav-inner{height:44px;display:flex;justify-content:center;align-items:flex-start;gap:34px}.short-item{width:88px;text-align:center;font-size:13px;color:var(--muted);padding-top:4px}.short-item span{display:block;height:4px;background:var(--steel);margin-bottom:3px}.short-item.is-current{color:var(--title);font-weight:750}.short-item.is-current span{height:6px;background:var(--copper)}.page-main{padding-top:calc(var(--topH) + 28px);padding-bottom:42px}.page-section{margin:0 auto 28px}.surface{background:var(--paper);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.hero{padding:30px 0 4px}.hero-index{display:flex;gap:18px;margin-bottom:18px}.hero-index a{width:88px;text-align:center;font-size:13px;color:var(--muted)}.hero-index span{display:block;height:4px;background:var(--steel);margin-bottom:5px}.hero h1,.page-head h1{font-size:24px;line-height:1.3;color:var(--title);margin:0 0 12px}.hero-lead{font-size:18px;color:var(--title);font-weight:720;margin:0 0 8px}.hero p{max-width:760px;margin:0 0 18px}.actions{display:flex;gap:10px;flex-wrap:wrap}.section-title{font-size:20px;color:var(--title);margin:0 0 14px}.section-intro{margin:0 0 18px;color:var(--muted)}.image-slot{background:var(--paper);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;overflow:hidden}.image-slot img{width:100%;height:100%;object-fit:contain;object-position:center}.stagger{display:grid;grid-template-columns:1.08fr .92fr;gap:18px;align-items:start}.stagger article{padding:18px}.stagger article:first-child{margin-top:0}.stagger article:last-child{margin-top:34px}.slot-180{height:180px}.slot-200{height:200px}.slot-240{height:240px}.slot-320{height:320px}.record-list{display:grid;gap:0;border-top:1px solid var(--border)}.record-item{display:grid;grid-template-columns:92px 1fr;gap:16px;padding:18px 0;border-bottom:1px solid var(--border)}.record-item .mark{font-size:13px;color:var(--copper);font-weight:750}.record-item h3{font-size:16px;margin:0 0 5px;color:var(--title)}.record-item p{margin:0}.record-item.has-image{grid-template-columns:170px 92px 1fr}.record-item .image-slot{height:110px}.fold-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.fold-card{padding:18px;position:relative}.fold-card:after{content:"";position:absolute;top:14px;bottom:14px;right:50%;width:1px;background:rgba(184,136,96,.28);pointer-events:none}.fold-card .image-slot{height:150px;margin-bottom:14px}.center-cards{display:grid;grid-template-columns:1fr 1fr;gap:18px}.center-card{padding:22px;text-align:center}.center-card .image-slot{height:150px;margin:-4px auto 16px;max-width:330px}.periods{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.periods article{padding:18px}.periods strong{display:block;color:var(--copper);margin-bottom:7px}.status-list{display:grid;gap:10px}.status-row{display:grid;grid-template-columns:120px 1fr auto;gap:14px;align-items:center;padding:14px 16px;background:var(--paper);border:1px solid var(--border);border-left:4px solid var(--teal);border-radius:var(--radius)}.status-row b{color:var(--title)}.status-pill{font-size:12px;padding:4px 8px;background:var(--soft);border-radius:999px;color:var(--title)}.app-block{padding:22px}.app-block .app-visuals{display:flex;justify-content:center;align-items:flex-end;gap:16px;margin-bottom:20px}.app-shot{width:min(360px,100%);height:300px}.app-icon-slot{width:64px;height:64px}.app-icon-slot img{width:48px;height:48px;object-fit:contain}.app-copy{max-width:780px;margin:0 auto}.app-copy p{margin:0 0 12px}.content-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.content-card{padding:20px}.content-card h3{margin:0 0 8px;color:var(--title);font-size:16px}.content-card p{margin:0}.faq-mini{display:grid;gap:10px}.faq-mini details{background:var(--paper);border:1px solid var(--border);border-radius:var(--radius);padding:12px 14px}.faq-mini summary{cursor:pointer;font-weight:700;color:var(--title)}.brand-story{padding:24px}.brand-story p{margin:0 0 12px}.page-head{padding:18px 0 20px}.page-head .eyebrow{font-size:13px;color:var(--copper);font-weight:750;margin-bottom:6px}.page-head p{max-width:790px;margin:0;color:var(--muted)}.page-banner{height:200px;margin:0 0 20px}.article-stack{display:grid;gap:16px}.article-block{padding:22px}.article-block h2{font-size:20px;margin:0 0 10px;color:var(--title)}.article-block h3{font-size:16px;margin:18px 0 7px;color:var(--title)}.article-block p{margin:0 0 12px}.article-block ul{margin:0;padding-left:20px}.article-block li{margin:6px 0}.horizontal-records{display:grid;gap:12px}.horizontal-record{display:grid;grid-template-columns:150px 1fr;gap:18px;padding:18px;background:var(--paper);border:1px solid var(--border);border-radius:var(--radius)}.horizontal-record:first-child{grid-template-columns:180px 150px 1fr}.horizontal-record .image-slot{height:120px}.stagger-page{display:grid;grid-template-columns:1fr 1fr;gap:18px}.stagger-page article{padding:20px}.stagger-page article:nth-child(even){transform:translateY(24px)}.fold-page{display:grid;grid-template-columns:1fr 1fr;gap:18px}.fold-page article{padding:20px;min-height:250px}.fold-page article:first-child{border-right:4px solid rgba(184,136,96,.28)}.single-guide{display:grid;gap:14px}.single-guide article{padding:20px;border-left:4px solid var(--copper)}.memo-list{display:grid;gap:12px}.memo-list article{padding:18px 18px 18px 50px;position:relative}.memo-list article:before{content:"✓";position:absolute;left:18px;top:18px;color:var(--teal);font-weight:800}.topic-list{display:grid;gap:12px}.topic-row{padding:18px;display:grid;grid-template-columns:160px 1fr;gap:18px}.topic-row b{color:var(--title)}.center-explain{max-width:760px;margin:0 auto;display:grid;gap:16px}.center-explain article{text-align:center;padding:24px}.terms{display:grid;gap:14px}.terms section{padding:20px}.terms h2{font-size:18px;margin:0 0 8px;color:var(--title)}.qa-list{display:grid;gap:12px}.qa{padding:20px}.qa h2{font-size:17px;margin:0 0 8px;color:var(--title)}.contact-paths{display:grid;grid-template-columns:1fr 1fr;gap:16px}.contact-paths article{padding:20px}.contact-paths h2{font-size:18px;margin:0 0 8px;color:var(--title)}.site-footer{background:var(--title);color:var(--bg);border-top:1px solid var(--copper);padding:30px 0 78px;font-size:13px}.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:22px}.footer-logo-slot{width:92px;height:24px;display:flex;align-items:center}.footer-logo{max-width:92px;height:24px;object-fit:contain}.footer-brand div{display:flex;flex-direction:column}.footer-brand strong{font-size:16px}.footer-brand span{font-size:11px;color:#C8D0D4}.footer-groups{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;padding-bottom:20px;border-bottom:1px solid rgba(242,245,246,.16)}.footer-groups h2{font-size:13px;margin:0 0 8px;color:#fff}.footer-groups a{display:block;color:#D6DDE0;margin:5px 0}.footer-note{max-width:780px;margin:18px 0 8px;color:#D6DDE0}.copyright{margin:0;color:#C8D0D4}.overlay{position:fixed;inset:0;background:rgba(30,42,46,.42);z-index:79;opacity:0;pointer-events:none;transition:.2s}.overlay.is-open{opacity:1;pointer-events:auto}.site-drawer{position:fixed;right:18px;bottom:72px;width:260px;max-height:360px;background:var(--paper);border:1px solid var(--focus);border-radius:8px;box-shadow:0 18px 46px rgba(30,42,46,.22);z-index:81;visibility:hidden;pointer-events:none;transform:translateY(24px);opacity:0;transition:.2s;overflow:auto}.site-drawer.is-open{visibility:visible;pointer-events:auto;transform:none;opacity:1}.drawer-head{position:sticky;top:0;background:var(--paper);display:flex;justify-content:space-between;align-items:center;padding:12px;border-bottom:1px solid var(--border);z-index:2}.drawer-brand{display:flex;align-items:center;gap:8px}.drawer-logo-slot{width:78px;height:24px;display:flex}.drawer-logo{max-width:78px;height:24px;object-fit:contain}.close-button{min-height:38px;padding:0 11px;border:1px solid var(--border);background:var(--soft);border-radius:5px;cursor:pointer}.drawer-groups{padding:10px 12px 14px}.drawer-groups h2{font-size:12px;color:var(--copper);margin:10px 0 4px}.drawer-groups a{display:block;padding:8px 0;border-bottom:1px solid var(--border)}.drawer-groups b{display:block;font-size:14px;color:var(--title)}.drawer-groups span{display:block;font-size:12px;color:var(--muted);line-height:1.5}.search-panel{position:fixed;left:0;right:0;top:74px;z-index:82;visibility:hidden;pointer-events:none;opacity:0;transform:translateY(-12px);transition:.2s}.search-panel.is-open{visibility:visible;pointer-events:auto;opacity:1;transform:none}.search-card{width:min(720px,calc(100% - 32px));margin:0 auto;background:var(--paper);border:1px solid var(--focus);border-radius:0 0 8px 8px;box-shadow:var(--shadow);padding:16px}.search-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}.search-card label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px}.search-card input{width:100%;height:44px;border:1px solid var(--border);background:white;border-radius:5px;padding:0 12px;outline:none}.search-card input:focus{border-color:var(--teal);box-shadow:0 0 0 3px rgba(90,122,128,.14)}.search-links{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.search-links a{min-height:40px;display:inline-flex;align-items:center;padding:0 12px;border:1px solid var(--border);border-radius:5px}.mobile-bottom{display:none}.app-link:hover,.button-secondary:hover,.search-links a:hover,.footer-groups a:hover{text-decoration:underline}.button-primary:hover{filter:brightness(.96)}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(184,136,96,.46);outline-offset:2px}
@media(max-width:720px){:root{--topH:74px}.shell{width:calc(100% - 32px)}.short-nav{display:none}.page-main{padding-top:calc(var(--topH) + 20px);padding-bottom:78px}.brand-logo-slot{width:70px}.brand-logo{max-width:70px}.brand-name{font-size:15px}.brand-actions{gap:5px}.app-link,.menu-button{padding:0 10px;min-height:44px}.stagger,.fold-grid,.center-cards,.periods,.content-grid,.stagger-page,.fold-page,.contact-paths{grid-template-columns:1fr}.stagger article:last-child,.stagger-page article:nth-child(even){margin-top:0;transform:none}.record-item,.record-item.has-image,.horizontal-record,.horizontal-record:first-child,.topic-row{grid-template-columns:1fr}.record-item .image-slot,.horizontal-record .image-slot{height:150px}.status-row{grid-template-columns:1fr;gap:4px}.app-block{padding:16px}.app-block .app-visuals{flex-direction:column;align-items:center}.app-shot{height:280px}.footer-groups{grid-template-columns:1fr 1fr}.site-drawer{right:6%;width:88%;bottom:64px;max-height:70vh}.search-panel{top:0;bottom:0;background:var(--teal);padding-top:54px}.search-card{width:calc(100% - 32px);background:transparent;color:var(--paper);border:0;box-shadow:none}.search-card label{color:var(--paper)}.search-card input{background:var(--paper);color:var(--title)}.search-links a{color:var(--paper);border-color:rgba(242,245,246,.42)}.search-head .close-button{color:var(--paper);background:transparent;border-color:rgba(242,245,246,.42)}.mobile-bottom{display:grid;grid-template-columns:repeat(4,1fr);position:fixed;left:0;right:0;bottom:0;z-index:70;height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:var(--paper);border-top:1px solid var(--border)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;font-size:13px;min-height:48px}.mobile-bottom a.is-current{background:var(--teal);color:var(--paper);font-weight:700}.hero-index{gap:10px}.hero-index a{flex:1;width:auto}.hero{padding-top:14px}.hero h1,.page-head h1{font-size:24px}.footer-groups{gap:12px}.site-footer{padding-bottom:90px}}
@media(max-width:420px){.brand-name{display:none}.top-strip-inner{width:calc(100% - 24px)}.brand-actions{margin-left:auto}.app-link,.menu-button{padding:0 9px}.footer-groups{grid-template-columns:1fr}.hero-index{gap:6px}.hero-index a{font-size:12px}.app-shot{height:250px}}