:root{--bg:#D7E4E6;--deep:#C4D4D6;--card:#F3F7F7;--soft:#E4EEEF;--ink:#1E2C2E;--body:#2A3A3C;--muted:#4A6064;--aux:#6A8084;--teal:#4A8A8C;--sand:#C4A070;--line:rgba(30,44,46,.14);--line2:rgba(74,138,140,.42);--shadow:0 12px 28px rgba(30,44,46,.08)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--body);font-family:Arial,"Microsoft YaHei",sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden}a{color:inherit;text-decoration:none}button{font:inherit}a,button{outline:none}.locked{overflow:hidden}.site-top{position:fixed;inset:0 0 auto 0;z-index:50}.top-strip{height:20px;background:var(--ink);color:var(--card);display:flex;align-items:center;justify-content:space-between;padding:0 20px;font-size:12px}.mini-brand{white-space:nowrap}.text-trigger{border:0;background:transparent;color:var(--card);padding:0 4px;cursor:pointer}.brand-row{height:54px;background:var(--card);border-bottom:1px solid var(--line2);display:flex;align-items:center;justify-content:space-between;padding:0 20px}.brand-home{display:flex;align-items:center;min-height:44px;font-weight:700;font-size:16px}.brand-logo,.footer-logo,.panel-logo{height:24px;width:auto;max-width:150px;object-fit:contain}.brand-actions{display:flex;align-items:center;gap:8px}.app-link,.menu-button{min-height:44px;display:inline-flex;align-items:center;padding:0 14px;border-radius:8px}.app-link{border:1px solid var(--line2);color:var(--ink);background:var(--card)}.menu-button{border:0;background:linear-gradient(135deg,#4A8A8C 0%,#1E2C2E 100%);color:var(--card);cursor:pointer}.side-list{position:absolute;top:74px;left:calc(50% - 610px);width:112px;background:rgba(243,247,247,.96);border:1px solid var(--line);border-radius:0 0 8px 8px;box-shadow:var(--shadow);padding:8px 0}.side-list a{height:34px;display:flex;align-items:center;padding:0 15px;border-left:3px solid transparent;font-size:13px}.side-list a:hover,.side-list a:focus-visible{background:var(--soft)}.side-list a.active{border-left-color:var(--teal);color:var(--ink);font-weight:700}.page-shell{width:min(980px,calc(100% - 40px));margin:0 auto;padding:108px 0 64px}.page-shell>section,.page-shell>article{margin-bottom:28px}h1,h2,h3{color:var(--ink);margin-top:0}h1{font-size:24px;line-height:1.3;margin-bottom:16px}h2{font-size:20px;line-height:1.4}h3{font-size:16px;line-height:1.45}p{margin:0 0 14px}.eyebrow{font-size:13px;color:var(--teal);font-weight:700;letter-spacing:.04em}.lede{font-size:16px;color:var(--muted);max-width:760px}.btn{display:inline-flex;align-items:center;justify-content:center;height:42px;padding:0 18px;border-radius:8px;font-size:14px;font-weight:700}.btn-primary{background:linear-gradient(135deg,#4A8A8C 0%,#1E2C2E 100%);color:var(--card)}.btn-secondary{background:var(--card);border:1px solid var(--teal);color:var(--ink)}.btn:hover{transform:translateY(-1px)}.btn:focus-visible,a:focus-visible,button:focus-visible{box-shadow:0 0 0 3px rgba(74,138,140,.28)}.hero-index{padding:30px 28px;background:var(--card);border-radius:10px;box-shadow:var(--shadow)}.short-index{display:grid;grid-template-columns:repeat(4,1fr);border-bottom:1px solid var(--line);margin-bottom:24px}.short-index a{padding:10px 8px 12px;border-right:1px solid var(--line);font-weight:700;color:var(--ink)}.short-index a:last-child{border-right:0}.hero-index .btn{margin-top:6px}.news-columns{display:grid;grid-template-columns:1fr 1fr;gap:16px}.column-card{background:var(--card);padding:20px;border-radius:8px;border:1px solid var(--line)}.image-slot{background:var(--deep);border-radius:8px;display:flex;align-items:center;justify-content:center;overflow:hidden}.image-slot img{width:100%;height:100%;object-fit:contain;object-position:center}.image-slot.landscape{height:168px;margin-bottom:16px}.image-slot.medium{height:210px}.image-slot.vertical{height:320px}.image-slot.banner{height:200px}.track{display:flex;gap:14px;overflow-x:auto;padding-bottom:8px;scroll-snap-type:x proximity}.track article{min-width:280px;flex:1;background:var(--card);border:1px solid var(--line);border-radius:8px;padding:18px;scroll-snap-align:start}.track .image-slot{height:150px;margin-bottom:14px}.leaf-pair,.shelf-pair,.app-split,.split-report{display:grid;grid-template-columns:1fr 1fr;gap:18px}.leaf,.shelf-card{background:var(--card);padding:22px;border:1px solid var(--line);border-radius:8px}.leaf .image-slot{height:190px;margin-bottom:14px}.shelf-head{grid-column:1/-1}.shelf-head .image-slot{height:170px}.periods{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.periods article,.status-row article,.faq-mini article{background:var(--card);border-radius:8px;border:1px solid var(--line);padding:18px}.status-row{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.status-pill{display:inline-block;border:1px solid var(--line2);border-radius:99px;padding:2px 9px;color:var(--ink);font-size:12px;margin-bottom:10px}.app-split{align-items:center;background:var(--card);padding:24px;border-radius:10px}.app-visual{display:grid;grid-template-columns:1fr 72px;gap:12px;align-items:center}.app-icon-slot{height:72px;background:var(--soft);border-radius:10px;display:flex;align-items:center;justify-content:center}.app-icon-slot img{width:48px;height:48px;object-fit:contain}.faq-mini{display:grid;grid-template-columns:1fr 1fr;gap:12px}.brand-note{border-left:4px solid var(--teal);padding:18px 20px;background:var(--soft);border-radius:0 8px 8px 0}.article-head{background:var(--card);border-radius:10px;padding:26px;margin-bottom:20px}.article-head .image-slot{margin-top:16px}.prose{background:var(--card);padding:28px;border-radius:10px;border:1px solid var(--line)}.prose section{margin:0 0 24px}.prose section:last-child{margin-bottom:0}.strip-list{display:grid;gap:12px}.strip-list article{background:var(--card);border-left:4px solid var(--teal);padding:20px;border-radius:0 8px 8px 0}.memo-list{display:grid;gap:10px}.memo-list article{background:var(--card);padding:18px;border-radius:8px;border:1px solid var(--line)}.center-cards{max-width:760px;margin:0 auto;display:grid;gap:14px;text-align:center}.center-cards article{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:24px}.topics{display:grid;grid-template-columns:1fr 1fr;gap:14px}.topics article{background:var(--card);padding:20px;border-radius:8px;border:1px solid var(--line)}.term-sections{display:grid;gap:14px}.term-sections section{background:var(--card);padding:22px;border-radius:8px;border-top:3px solid var(--teal)}.faq-list{display:grid;gap:12px}.faq-list details{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:16px 18px}.faq-list summary{cursor:pointer;color:var(--ink);font-weight:700}.faq-list p{margin:12px 0 0}.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.contact-grid article{background:var(--card);padding:22px;border-radius:8px}.site-footer{background:#162022;color:#D7E4E6;border-top:1px solid rgba(74,138,140,.5);padding:34px 20px 74px;font-size:13px}.footer-inner{width:min(980px,100%);margin:auto}.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:24px}.footer-brand div{display:flex;flex-direction:column}.footer-brand strong{font-size:16px}.footer-brand span{color:#a9b9bb}.footer-groups{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;border-top:1px solid rgba(215,228,230,.15);border-bottom:1px solid rgba(215,228,230,.15);padding:20px 0}.footer-groups h2{font-size:13px;color:#fff;margin-bottom:8px}.footer-groups a{display:block;color:#D7E4E6;padding:4px 0}.footer-note{margin-top:20px;color:#c0cdcf}.copyright{color:#93a5a8}.overlay{position:fixed;inset:0;background:rgba(22,32,34,.44);z-index:70;visibility:hidden;opacity:0;pointer-events:none;transition:.2s}.overlay.show{visibility:visible;opacity:1;pointer-events:auto}.menu-panel{position:fixed;left:20px;bottom:20px;width:360px;max-height:480px;overflow:auto;background:var(--card);z-index:80;border-radius:10px;box-shadow:0 18px 48px rgba(22,32,34,.25);padding:18px;transform:translateY(24px);opacity:0;visibility:hidden;pointer-events:none;transition:.22s}.menu-panel.open{transform:none;opacity:1;visibility:visible;pointer-events:auto}.panel-head{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding-bottom:12px;margin-bottom:14px}.panel-head button,.search-top button{border:1px solid var(--line2);background:var(--card);min-height:40px;border-radius:7px;padding:0 12px;color:var(--ink);cursor:pointer}.panel-brand{display:flex;align-items:center;gap:8px}.menu-groups{display:grid;grid-template-columns:1fr 1fr;gap:14px}.menu-groups h2{font-size:13px;margin-bottom:6px}.menu-groups a{display:block;padding:8px 0;border-bottom:1px solid var(--line)}.menu-groups b,.menu-groups span{display:block}.menu-groups b{color:var(--ink)}.menu-groups span{font-size:12px;color:var(--muted)}.search-panel{position:fixed;top:74px;left:0;right:0;z-index:75;visibility:hidden;opacity:0;pointer-events:none;transition:.2s}.search-panel.open{visibility:visible;opacity:1;pointer-events:auto}.search-card{width:min(760px,calc(100% - 40px));margin:0 auto;background:var(--card);box-shadow:var(--shadow);border-radius:0 0 10px 10px;padding:20px}.search-top{display:flex;justify-content:space-between;align-items:center;gap:12px}.preset-links{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}.preset-links a{min-height:40px;display:inline-flex;align-items:center;padding:0 14px;background:var(--soft);border-radius:7px}.mobile-bottom{display:none}.check-list{display:grid;gap:10px}.check-list li{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:12px 14px;list-style:none}.timeline{display:grid;gap:10px}.timeline article{display:grid;grid-template-columns:120px 1fr;gap:14px;background:var(--card);padding:16px;border-radius:8px}.timeline strong{color:var(--ink)}
@media(max-width:1280px) and (min-width:761px){.side-list{left:12px}.page-shell{padding-left:120px;width:calc(100% - 40px)}}
@media(max-width:760px){body{padding-bottom:calc(48px + env(safe-area-inset-bottom))}.top-strip,.brand-row{padding-left:16px;padding-right:16px}.brand-actions{gap:4px}.app-link,.menu-button{padding:0 10px}.side-list{display:none}.page-shell{width:calc(100% - 32px);padding:94px 0 34px}.hero-index{padding:22px 18px}.short-index{grid-template-columns:1fr 1fr}.short-index a:nth-child(2){border-right:0}.news-columns,.leaf-pair,.shelf-pair,.app-split,.split-report,.topics,.contact-grid{grid-template-columns:1fr}.periods,.status-row{grid-template-columns:1fr}.faq-mini{grid-template-columns:1fr}.app-visual{grid-template-columns:1fr}.app-icon-slot{height:64px}.footer-groups{grid-template-columns:1fr 1fr}.site-footer{padding-bottom:88px}.menu-panel{left:6%;bottom:62px;width:88%;max-height:calc(100vh - 110px)}.menu-groups{grid-template-columns:1fr 1fr}.mobile-bottom{position:fixed;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(4,1fr);background:var(--card);border-top:1px solid var(--line2);z-index:60}.mobile-bottom a{display:flex;align-items:center;justify-content:center;min-height:48px;font-size:13px}.mobile-bottom a.active{background:var(--teal);color:var(--card)}.search-panel{top:0;bottom:0;background:var(--ink);padding:24px 16px;z-index:85}.search-card{width:100%;margin:0;background:transparent;color:var(--card);box-shadow:none;padding-top:50px}.search-top strong{color:var(--card)}.search-top button{background:transparent;color:var(--card);border-color:rgba(243,247,247,.4)}.preset-links a{background:rgba(243,247,247,.1);color:var(--card)}.timeline article{grid-template-columns:1fr}.image-slot.vertical{height:280px}}
@media(max-width:420px){.mini-brand{font-size:11px}.brand-home{max-width:120px}.menu-groups{grid-template-columns:1fr}.footer-groups{grid-template-columns:1fr 1fr}.track article{min-width:245px}}