:root{--ink:#142230;--muted:#586a78;--paper:#f7f8f7;--panel:#fff;--stone:#e7e9e7;--line:#cbd4d9;--azure:#1376a8;--azure-dark:#095374;--sky:#d8f1ff;--shadow:0 16px 40px rgba(20,34,48,.09);font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;color:var(--ink);background:var(--paper)}
*{box-sizing:border-box}html{scroll-behavior:smooth;overflow-x:hidden}body{margin:0;min-width:0;overflow-x:hidden;background:linear-gradient(180deg,#edf7fc 0,#f7f8f7 520px);font-size:17px;line-height:1.75}a{color:var(--azure-dark);text-underline-offset:.22em}a:hover{color:var(--azure)}img{display:block;max-width:100%;height:auto}h1,h2{line-height:1.22;letter-spacing:-.025em}h1{font-size:clamp(2.3rem,7vw,5.4rem);margin:.2em 0 .28em;max-width:12ch}h2{font-size:clamp(1.45rem,3vw,2.25rem);margin:.2em 0 .55em}p{margin:.45em 0 1em}.skip-link{position:absolute;top:-5rem;left:1rem;padding:.8rem 1rem;background:#fff;z-index:20}.skip-link:focus{top:1rem}.site-header{position:sticky;top:0;z-index:10;background:rgba(247,248,247,.94);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}.header-inner{width:min(1180px,calc(100% - 2rem));margin:auto;display:flex;align-items:center;gap:1.5rem;min-height:76px}.brand{display:flex;align-items:center;gap:.65rem;text-decoration:none;font-weight:800;white-space:nowrap}.brand-mark{width:1.25rem;height:1.25rem;border:3px solid var(--azure);border-radius:50%;box-shadow:8px 0 0 -5px var(--azure-dark)}.site-nav{min-width:0;margin-left:auto}.site-nav ul{display:flex;align-items:center;justify-content:flex-end;gap:.35rem;list-style:none;padding:0;margin:0;flex-wrap:wrap}.site-nav a{display:block;padding:.42rem .58rem;text-decoration:none;border-radius:999px;font-size:.88rem}.site-nav a:hover{background:var(--sky)}main{width:min(1180px,calc(100% - 2rem));margin:auto;padding-bottom:5rem}.breadcrumbs{display:flex;gap:.55rem;align-items:center;flex-wrap:wrap;font-size:.88rem;color:var(--muted);padding:1.2rem 0 0}.page-hero{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(320px,.95fr);gap:clamp(2rem,6vw,5rem);align-items:center;padding:clamp(3rem,8vw,7rem) 0}.hero-copy,.hero-visual{min-width:0}.eyebrow,.section-kicker,.card-label{color:var(--azure-dark);font-weight:800;font-size:.78rem;letter-spacing:.12em;text-transform:uppercase}.hero-lead{font-size:1.15rem;color:var(--muted);max-width:58ch}.hero-actions{display:flex;gap:.8rem;flex-wrap:wrap;margin-top:1.6rem}.button{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;padding:.78rem 1.15rem;text-decoration:none;font-weight:800}.button.primary{background:var(--azure-dark);color:#fff}.button.quiet{border:1px solid var(--line);background:#fff}.hero-visual{margin:0;border-radius:2rem;overflow:hidden;background:#0d2638;box-shadow:var(--shadow);border:1px solid rgba(255,255,255,.4)}.hero-visual img{aspect-ratio:1200/630;object-fit:cover}.hero-visual figcaption{background:#0d2638;color:#d7e8f2;padding:.8rem 1rem;font-size:.78rem}.intro-grid,.two-column,.evidence-grid,.method-panel,.profile-panel{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(1.5rem,4vw,4rem);align-items:start;margin:2rem 0 5rem}.number-path,.step-list{list-style:none;padding:0;margin:0;display:grid;gap:.8rem}.number-path li,.step-list li{display:grid;grid-template-columns:3rem minmax(0,1fr);gap:.8rem;align-items:start;border-top:1px solid var(--line);padding:1rem 0}.number-path strong,.step-list span{color:var(--azure-dark);font-weight:900}.number-path span{color:var(--muted)}.section-heading{display:flex;justify-content:space-between;align-items:end;gap:1rem;margin:4rem 0 1.4rem}.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem}.card-grid.compact{grid-template-columns:repeat(2,minmax(0,1fr))}.check-card{display:flex;flex-direction:column;min-width:0;padding:1.35rem;background:var(--panel);border:1px solid var(--line);border-radius:1.25rem;box-shadow:0 8px 22px rgba(20,34,48,.04)}.check-card h2{font-size:1.22rem}.check-card h2 a{text-decoration:none;color:var(--ink)}.check-card p{color:var(--muted)}.check-card .text-link{margin-top:auto;font-weight:800}.latest-block{margin:5rem 0}.method-panel,.profile-panel,.tool-panel,.definition-panel{background:var(--sky);border:1px solid #aed6e8;border-radius:1.5rem;padding:clamp(1.5rem,4vw,3rem);margin:5rem 0}.method-panel{grid-template-columns:minmax(220px,.7fr) minmax(0,1.3fr)}.stone-panel,.scope-note{background:var(--stone);padding:1.5rem;border-radius:1.25rem;border:1px solid #d3d8d7}.check-list{padding-left:1.3rem}.check-list li{margin:.65rem 0}.article-layout,.policy-layout{display:grid;gap:2.4rem}.article-layout>section,.policy-layout>section{background:var(--panel);padding:clamp(1.4rem,4vw,2.5rem);border:1px solid var(--line);border-radius:1.3rem}.evidence-grid>div{background:#fff;border-left:4px solid var(--azure);padding:1.2rem 1.4rem}.profile-panel{grid-template-columns:90px minmax(0,1fr)}.avatar{width:76px;height:76px;border-radius:50%;display:grid;place-items:center;background:var(--azure-dark);color:#fff;font-size:2rem;font-weight:900}.route-directory{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem}.route-group{background:#fff;border:1px solid var(--line);border-radius:1.25rem;padding:1.2rem}.route-group h2{font-size:1.15rem}.route-group ul{padding-left:1.2rem}.route-group li{margin:.45rem 0}.scope-note{margin:5rem 0}.site-footer{background:#142230;color:#dce8ee;padding:3rem max(1rem,calc((100vw - 1180px)/2));display:grid;grid-template-columns:1fr 1fr;gap:1.4rem}.site-footer a{color:#fff}.site-footer nav{display:flex;gap:1rem;justify-content:flex-end;flex-wrap:wrap}.update-line{grid-column:1/-1;border-top:1px solid #40515d;padding-top:1rem;color:#abc0ca}.text-link{font-weight:800}
@media(max-width:900px){.header-inner{align-items:flex-start;padding:.7rem 0;flex-direction:column}.site-nav{margin-left:0}.site-nav ul{justify-content:flex-start}.page-hero{grid-template-columns:1fr;padding-top:3rem}.card-grid,.route-directory{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:640px){body{font-size:16px}.header-inner,main{width:min(100% - 1.25rem,1180px)}.site-nav ul{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));width:100%}.site-nav a{text-align:center;font-size:.78rem;padding:.35rem .2rem;overflow-wrap:anywhere}.page-hero{gap:1.5rem}.intro-grid,.two-column,.evidence-grid,.method-panel,.profile-panel,.card-grid,.card-grid.compact,.route-directory,.site-footer{grid-template-columns:1fr}.site-footer nav{justify-content:flex-start}.update-line{grid-column:auto}.hero-actions .button{width:100%}.section-heading{align-items:flex-start;flex-direction:column}.check-card,.article-layout>section,.policy-layout>section{padding:1.05rem}.profile-panel{display:block}.avatar{margin-bottom:1rem}}