:root{--c-primary: #0e5e4a;--c-primary-dark: #0a4436;--c-accent: #c98a2d;--c-bg: #ffffff;--c-bg-soft: #f4f7f5;--c-text: #22302c;--c-text-soft: #5b6b66;--c-border: #dfe7e3;--radius: 10px;--shadow: 0 1px 3px rgb(14 94 74 / .08), 0 8px 24px rgb(14 94 74 / .06);--font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;--max-w: 1120px}*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}body{margin:0;font-family:var(--font-sans);color:var(--c-text);background:var(--c-bg);line-height:1.75;font-size:16px}img{max-width:100%;height:auto}a{color:var(--c-primary);text-decoration:none}a:hover{text-decoration:underline}h1,h2,h3{line-height:1.3;color:var(--c-primary-dark)}h1{font-size:clamp(1.6rem,3.5vw,2.4rem)}h2{font-size:clamp(1.25rem,2.5vw,1.7rem)}.container{max-width:var(--max-w);margin-inline:auto;padding-inline:20px}.skip-link{position:absolute;left:-9999px}.skip-link:focus{left:12px;top:12px;background:var(--c-primary);color:#fff;padding:8px 14px;border-radius:6px;z-index:99}.site-header{position:sticky;top:0;background:#ffffffeb;backdrop-filter:blur(8px);border-bottom:1px solid var(--c-border);z-index:50}.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px;flex-wrap:wrap}.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;color:var(--c-primary-dark);white-space:nowrap}.brand-mark{display:grid;place-items:center;width:36px;height:36px;border-radius:9px;background:linear-gradient(135deg,var(--c-primary),var(--c-primary-dark));color:#fff;font-size:1.05rem}.nav-list{display:flex;flex-wrap:wrap;gap:4px;list-style:none;margin:0;padding:0}.nav-list a{display:block;padding:8px 12px;border-radius:8px;color:var(--c-text);font-size:.95rem;white-space:nowrap}.nav-list a:hover{background:var(--c-bg-soft);text-decoration:none}.nav-list a[aria-current=page]{color:var(--c-primary);background:var(--c-bg-soft);font-weight:600}main{min-height:60vh}.section{padding-block:48px}.section-alt{background:var(--c-bg-soft)}.section-head{margin-bottom:28px}.section-head p{color:var(--c-text-soft);max-width:720px}.eyebrow{display:inline-block;font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;color:var(--c-accent);font-weight:700;margin-bottom:8px}.card-grid{display:grid;gap:20px;grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}.card{display:flex;flex-direction:column;gap:10px;padding:22px;border:1px solid var(--c-border);border-radius:var(--radius);background:var(--c-bg);box-shadow:var(--shadow)}.card h3{margin:0;font-size:1.1rem}.card h3 a{color:var(--c-primary-dark)}.card p{margin:0;color:var(--c-text-soft);font-size:.95rem}.card .tag-row{display:flex;flex-wrap:wrap;gap:6px}.tag{font-size:.75rem;padding:2px 10px;border-radius:999px;background:var(--c-bg-soft);color:var(--c-primary);border:1px solid var(--c-border)}.hero{background:linear-gradient(160deg,var(--c-primary-dark),var(--c-primary) 70%);color:#fff;padding-block:72px}.hero h1{color:#fff;margin:0 0 14px}.hero p{max-width:640px;color:#ffffffe0}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}.btn{display:inline-block;padding:11px 22px;border-radius:9px;font-weight:600;border:1px solid transparent}.btn-light{background:#fff;color:var(--c-primary-dark)}.btn-outline{border-color:#fff9;color:#fff}.btn-primary{background:var(--c-primary);color:#fff}.btn:hover{text-decoration:none;opacity:.92}.spec-table{width:100%;border-collapse:collapse;font-size:.95rem}.spec-table th,.spec-table td{border:1px solid var(--c-border);padding:10px 14px;text-align:left}.spec-table th{background:var(--c-bg-soft);width:30%;color:var(--c-text-soft);font-weight:600}.faq-list details{border:1px solid var(--c-border);border-radius:var(--radius);padding:14px 18px;background:var(--c-bg);margin-bottom:12px}.faq-list summary{cursor:pointer;font-weight:600;color:var(--c-primary-dark)}.faq-list .faq-answer{margin-top:10px;color:var(--c-text-soft)}.breadcrumbs ol{display:flex;flex-wrap:wrap;gap:4px;list-style:none;margin:18px auto 0;padding:0 20px;font-size:.85rem;color:var(--c-text-soft)}.breadcrumbs li+li:before{content:"/";margin-right:4px;color:var(--c-border)}.prose{max-width:760px}.prose p{margin-block:.9em}.prose h2,.prose h3{margin-top:1.6em}.citation-list{list-style:none;padding:0;display:grid;gap:12px}.citation-list li{border-left:3px solid var(--c-accent);background:var(--c-bg-soft);padding:12px 16px;border-radius:0 8px 8px 0;font-size:.92rem}.citation-list .cite-kind{font-size:.75rem;color:var(--c-accent);font-weight:700;margin-right:8px}.timeline{list-style:none;margin:0;padding:0;display:grid;gap:14px}.timeline li{display:grid;grid-template-columns:72px 1fr;gap:14px;align-items:baseline}.timeline .year{font-weight:700;color:var(--c-primary)}.site-footer{margin-top:64px;background:var(--c-primary-dark);color:#ffffffd9;padding-top:44px;font-size:.92rem}.site-footer h2{color:#fff;font-size:1rem;margin:0 0 12px}.site-footer a{color:#ffffffd9}.footer-grid{display:grid;gap:32px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));padding-bottom:28px}.footer-grid ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}.footer-legal{border-top:1px solid rgb(255 255 255 / .18);padding-block:18px;display:flex;flex-wrap:wrap;gap:8px 18px;font-size:.8rem;color:#ffffffa6}@media(max-width:720px){.header-inner{justify-content:center}.hero{padding-block:48px}.section{padding-block:36px}}