:root{--ink:#111827;--text:#1F2937;--muted:#6B7280;--blue:#1F2A44;--blue2:#3A4F7A;--bg:#F7F8FA;--bg2:#EEF1F5;--accent:#F59E0B;--white:#fff;--line:#DCE2EA;--radius:22px;--shadow:0 18px 50px rgba(17,24,39,.08);--shell:min(1180px,calc(100% - 40px))}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--text);background:var(--bg);line-height:1.7}img{max-width:100%;display:block}a{color:inherit;text-decoration:none}button,input{font:inherit}.shell{width:var(--shell);margin-inline:auto}.skip-link{position:fixed;left:16px;top:-80px;background:var(--ink);color:#fff;padding:10px 16px;border-radius:10px;z-index:100}.skip-link:focus{top:16px}.site-header{position:sticky;top:0;z-index:50;background:rgba(247,248,250,.92);backdrop-filter:blur(14px);border-bottom:1px solid rgba(220,226,234,.8)}.header-row{min-height:78px;display:flex;align-items:center;gap:28px}.brand{display:flex;align-items:center;gap:12px;font-weight:800;color:var(--ink);min-width:0}.brand img{width:42px;height:42px;object-fit:cover;border-radius:12px}.brand span{white-space:nowrap}.site-nav{margin-left:auto;display:flex;align-items:center;gap:6px}.site-nav a{padding:9px 13px;border-radius:999px;color:var(--muted);font-weight:650}.site-nav a:hover,.site-nav a[aria-current=page]{background:var(--blue);color:#fff}.nav-toggle{display:none;margin-left:auto;border:1px solid var(--line);background:#fff;border-radius:10px;padding:8px 12px}.hero{padding:64px 0 40px;display:grid;grid-template-columns:1.08fr .92fr;gap:44px;align-items:center}.hero-copy h1,.page-hero h1{font-size:clamp(2.3rem,5vw,4.6rem);line-height:1.08;letter-spacing:-.04em;color:var(--ink);margin:12px 0 20px}.hero-copy p,.page-hero p,.lead{font-size:1.08rem;color:var(--muted);max-width:760px}.hero-art{border-radius:30px;overflow:hidden;box-shadow:var(--shadow);min-height:420px;background:var(--bg2)}.hero-art img{width:100%;height:100%;min-height:420px;object-fit:cover}.eyebrow{display:inline-flex;color:var(--accent);font-weight:800;font-size:.82rem;letter-spacing:.08em;text-transform:uppercase}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.btn{display:inline-flex;justify-content:center;align-items:center;min-height:46px;padding:0 18px;border-radius:12px;font-weight:800;border:1px solid transparent}.btn-primary{background:var(--blue);color:#fff}.btn-primary:hover{background:var(--blue2)}.btn-secondary{border-color:var(--line);background:#fff}.btn-light{background:#fff;color:var(--ink)}.section{padding:56px 0}.surface{background:var(--bg2);border-block:1px solid var(--line)}.deep{background:var(--ink);color:#fff}.section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:26px}.section-head h2{font-size:clamp(1.55rem,3vw,2.45rem);line-height:1.2;margin:6px 0;color:var(--ink);letter-spacing:-.02em}.section-head p{margin:0;color:var(--muted);max-width:520px}.section-head.light h2,.deep h2{color:#fff}.media-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.media-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:0 12px 30px rgba(17,24,39,.05)}.media-card img{width:100%;aspect-ratio:16/10;object-fit:cover;background:var(--bg2)}.media-card__body{padding:20px}.media-card h3{margin:6px 0 8px;color:var(--ink);font-size:1.16rem}.media-card p{margin:0;color:var(--muted)}.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}.tags span{font-size:.78rem;padding:5px 9px;border-radius:999px;background:var(--bg2);color:var(--blue2)}.text-link{display:inline-flex;margin-top:16px;color:var(--blue);font-weight:800}.text-link:hover{text-decoration:underline}.compact-list{display:grid;grid-template-columns:1fr 1fr;gap:14px}.compact-list article{background:#fff;border:1px solid var(--line);padding:20px;border-radius:18px;display:flex;justify-content:space-between;gap:22px}.compact-list h3{margin:3px 0 7px;color:var(--ink)}.compact-list p{margin:0;color:var(--muted)}.compact-list>a,.compact-list article>a{align-self:center;white-space:nowrap;color:var(--blue);font-weight:800}.list-kicker{font-size:.78rem;color:var(--accent);font-weight:800}.split-feature{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:center}.split-feature>img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:24px;box-shadow:var(--shadow)}.split-copy h2{font-size:clamp(1.6rem,3vw,2.6rem);line-height:1.2;margin:8px 0 14px;color:inherit}.split-copy p{color:var(--muted);font-size:1.04rem}.deep .split-copy p{color:#CBD5E1}.quality-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.quality-grid article{padding:24px;border:1px solid rgba(255,255,255,.12);border-radius:20px;background:rgba(255,255,255,.04)}.quality-grid article>span{display:inline-grid;place-items:center;width:38px;height:38px;border-radius:10px;background:var(--accent);color:#111827;font-weight:900}.quality-grid h3{margin:14px 0 8px}.quality-grid p{margin:0;color:#CBD5E1}.faq-list{display:grid;gap:12px}.faq-list details{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px 20px}.faq-list summary{cursor:pointer;font-weight:800;color:var(--ink)}.faq-list p{color:var(--muted);margin:10px 0 0}.page-hero{padding:66px 0 32px}.page-hero h1{max-width:900px}.info-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.info-grid article{background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px}.info-grid h3{margin:0 0 8px;color:var(--ink)}.info-grid p{margin:0;color:var(--muted)}.site-footer{background:#0B1220;color:#CBD5E1;padding:48px 0 24px}.footer-grid{display:grid;grid-template-columns:1fr auto;gap:36px}.footer-grid strong{font-size:1.15rem;color:#fff}.footer-grid p{max-width:620px}.footer-grid nav{display:grid;grid-template-columns:repeat(2,auto);gap:8px 18px}.footer-grid a:hover{color:#fff}.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:30px;padding-top:18px;display:flex;justify-content:space-between;font-size:.9rem}@media(max-width:900px){.hero,.split-feature{grid-template-columns:1fr}.hero-art{min-height:320px}.hero-art img{min-height:320px}.media-grid{grid-template-columns:1fr 1fr}.quality-grid{grid-template-columns:1fr}.site-nav{display:none;position:absolute;top:68px;left:20px;right:20px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);padding:10px;border-radius:16px;flex-direction:column;align-items:stretch}.site-nav.is-open{display:flex}.site-nav a{border-radius:10px}.nav-toggle{display:block}.compact-list{grid-template-columns:1fr}}@media(max-width:640px){:root{--shell:min(100% - 28px,1180px)}.header-row{min-height:68px}.brand span{font-size:.92rem;overflow:hidden;text-overflow:ellipsis}.hero{padding-top:38px;gap:24px}.hero-copy h1,.page-hero h1{font-size:2.35rem}.hero-art,.hero-art img{min-height:240px}.section{padding:42px 0}.section-head{display:block}.section-head p{margin-top:10px}.media-grid,.info-grid{grid-template-columns:1fr}.compact-list article{display:block}.compact-list article>a{display:inline-flex;margin-top:14px}.hero-actions .btn{width:100%}.footer-grid{grid-template-columns:1fr}.footer-grid nav{grid-template-columns:1fr 1fr}.footer-bottom{gap:16px;flex-direction:column}.page-hero{padding-top:46px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}
.guide-stack{display:grid;gap:0;border-top:1px solid var(--line)}.guide-row{display:grid;grid-template-columns:70px 1fr;gap:22px;padding:26px 0;border-bottom:1px solid var(--line)}.guide-number{font-size:1.45rem;font-weight:900;color:var(--accent);font-variant-numeric:tabular-nums}.guide-row h3{margin:0 0 9px;font-size:1.15rem;color:var(--ink)}.guide-row p{margin:0;color:var(--muted)}.guide-row .guide-tip{margin-top:12px;color:var(--text);background:var(--bg2);border-radius:12px;padding:11px 13px}.guide-tip strong{color:var(--blue)}@media(max-width:640px){.guide-row{grid-template-columns:42px 1fr;gap:12px;padding:22px 0}.guide-number{font-size:1.05rem}.guide-row h3{font-size:1.03rem}.guide-row .guide-tip{font-size:.9rem}}
.glossary-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin:0}.glossary-grid>div{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px}.glossary-grid dt{font-weight:900;color:var(--ink);margin-bottom:6px}.glossary-grid dd{margin:0;color:var(--muted)}.search-form{margin-top:28px;max-width:760px}.search-form label{display:block;font-weight:800;color:var(--ink);margin-bottom:8px}.search-form>div{display:grid;grid-template-columns:1fr auto;gap:10px}.search-form input{width:100%;border:1px solid var(--line);background:#fff;border-radius:12px;padding:12px 14px;outline:none}.search-form input:focus{border-color:var(--blue2);box-shadow:0 0 0 3px rgba(58,79,122,.12)}.search-results{display:grid;gap:14px}.search-results article{background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px}.search-results h3{margin:5px 0 8px;color:var(--ink)}.search-results p{margin:0;color:var(--muted)}.empty-state{background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px}.empty-state h2{margin-top:0;color:var(--ink)}@media(max-width:700px){.glossary-grid{grid-template-columns:1fr}.search-form>div{grid-template-columns:1fr}.search-form .btn{width:100%}}
.path-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.path-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px}.path-card h3{margin:0 0 8px;color:var(--ink);font-size:1.08rem}.path-card p{margin:0;color:var(--muted)}.path-card ol{margin:16px 0 0;padding-left:1.25rem;color:var(--text)}.path-card li+li{margin-top:6px}.path-card li::marker{color:var(--accent);font-weight:900}@media(max-width:900px){.path-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:620px){.path-grid{grid-template-columns:1fr}}