.site{min-height:100vh;display:flex;flex-direction:column}main{flex:1}.site-head{border-bottom:1px solid var(--line);position:sticky;top:0;background:var(--bg);z-index:10}.head-in{display:flex;align-items:center;justify-content:space-between;height:60px}.brand{display:inline-flex;gap:10px;align-items:center;color:var(--fg);font-weight:700;font-size:17px}nav{display:flex;gap:22px;align-items:center;flex-wrap:wrap}nav a{color:var(--muted);font-size:14px}nav a.router-link-active{color:var(--fg)}nav a.small{min-height:36px;padding:0 16px}.lang-switch{display:inline-flex;align-items:center;justify-content:center;color:var(--muted);border:1px solid var(--line);border-radius:8px;padding:6px;line-height:0;transition:color .15s var(--ease),border-color .15s var(--ease),background-color .15s var(--ease)}.lang-switch:hover{color:var(--fg);border-color:var(--line-strong);background:var(--accent-soft)}.lang-switch:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:8px}.site-foot{border-top:1px solid var(--line);background:var(--bg-soft)}.foot-grid{display:grid;gap:28px;grid-template-columns:2fr 1fr 1fr 1.4fr;padding:32px 24px 24px}.foot-title{font-weight:700;margin-bottom:10px;font-size:14px}.site-foot a{display:block;color:var(--muted);font-size:14px;margin-bottom:8px}.brand-line{font-weight:700}.foot-legal{border-top:1px solid var(--line);padding:16px 24px;font-size:13px;color:var(--muted);display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}.foot-legal p{margin:0}@media(max-width:720px){.foot-grid{grid-template-columns:1fr 1fr}}@media(max-width:480px){.head-in{height:auto;padding:10px 0}.head-in nav{gap:12px;row-gap:6px}}:root{--bg: #171717;--bg-soft: #1e1e1e;--fg: #ececec;--muted: #b4b4b4;--line: #262626;--accent: #ececec;--accent-hover: #ffffff;--accent-fg: #171717;--accent-soft: #262626;--ok: #4bb96b;--radius-field: 12px;--radius-card: 16px;--radius-panel: 22px;--ease: cubic-bezier(.16, 1, .3, 1);--maxw: 1040px;color-scheme:dark}@media(prefers-color-scheme:light){:root{--bg: #ffffff;--bg-soft: #f9f9f9;--fg: #171717;--muted: #4e4e4e;--line: #ececec;--accent: #171717;--accent-hover: #0d0d0d;--accent-fg: #ffffff;--accent-soft: #f2f2f2;--ok: #2f8f4e;color-scheme:light}}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.55 Geist Variable,PingFang SC,Hiragino Sans GB,Noto Sans SC,Microsoft YaHei,system-ui,sans-serif;-webkit-font-smoothing:antialiased}a{color:var(--accent);text-decoration:none}main p a,main li a{text-decoration:underline;text-underline-offset:3px}a:focus-visible,.btn:focus-visible,:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.skip-link{position:absolute;left:-9999px;top:0;z-index:100;background:var(--accent);color:var(--accent-fg);padding:10px 18px;border-radius:0 0 8px;font-weight:600}.skip-link:focus{left:0}img,svg{max-width:100%}h1,h2,h3{line-height:1.3;margin:0 0 12px;letter-spacing:-.02em;text-wrap:balance}h1{font-size:40px}h2{font-size:26px}h3{font-size:18px}p{margin:0 0 12px;text-wrap:pretty}.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}.section{padding:72px 0}.section.alt{background:var(--bg-soft)}.muted{color:var(--muted)}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 24px;border-radius:var(--radius-field);font-size:14px;font-weight:600;text-decoration:none;border:1px solid transparent;cursor:pointer;transition:background-color .15s var(--ease),border-color .15s var(--ease),color .15s var(--ease),transform .15s var(--ease)}.btn.primary{background:var(--accent);color:var(--accent-fg)}.btn.primary:hover{background:var(--accent-hover)}.btn.primary:active,.btn.ghost:active{transform:translateY(1px)}.btn.ghost{color:var(--fg);border-color:var(--line)}.btn.ghost:hover{background:var(--accent-soft);border-color:var(--line-strong)}.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.card{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius-card);padding:22px}.grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}.center{text-align:center}.eyebrow{color:var(--accent);font-weight:700;font-size:13px;letter-spacing:.08em}.lead{font-size:17px;max-width:620px}.center .lead{margin-left:auto;margin-right:auto}.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}.center .cta-row{justify-content:center}.workflow{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}.num{display:block;font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--muted);margin-bottom:6px}.steps{margin:16px 0 0;padding-left:22px;display:grid;gap:10px;color:var(--muted)}.steps li::marker{color:var(--fg);font-weight:700}.who{margin:16px 0 0;padding-left:22px;display:grid;gap:10px;color:var(--muted)}.who li::marker{color:var(--fg)}.faq-wrap{max-width:760px;margin:0 auto;display:grid;gap:16px}@media(max-width:720px){h1{font-size:30px}.section{padding:48px 0}.workflow{grid-template-columns:1fr;gap:32px}}@media(max-width:480px){h1{font-size:26px}h2{font-size:22px}.container{padding:0 16px}.section{padding:40px 0}}