*{box-sizing:border-box}:root{--bg:#f6f7f9;--paper:#fff;--ink:#1f2329;--muted:#626a76;--line:#e5e7eb;--green:#176b5f;--soft:#e9f6f4;--dark:#20242a}body{margin:0;background:var(--bg);color:var(--ink);font-family:"Microsoft YaHei",Arial,sans-serif;line-height:1.75}.topbar{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;padding:12px 28px;background:#fff;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none}.brand span{display:grid;place-items:center;width:34px;height:34px;border-radius:7px;background:var(--dark);color:#fff;font-weight:800}.topbar nav{display:flex;gap:16px}.topbar nav a{color:var(--muted);text-decoration:none}.topbar nav a:hover{color:var(--ink)}.shell{max-width:1180px;margin:0 auto;padding:34px 22px 70px}.hero{background:#fff;border:1px solid var(--line);border-radius:8px;padding:46px;box-shadow:0 18px 45px rgba(16,24,40,.08)}.eyebrow,.section-head p{margin:0;color:var(--green);font-weight:800;letter-spacing:0}.hero h1{max-width:780px;margin:10px 0 12px;font-size:42px;line-height:1.18}.hero p{max-width:780px;color:var(--muted);font-size:17px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:0 18px;border-radius:6px;background:var(--green);color:#fff;text-decoration:none;font-weight:700}.btn.ghost{background:var(--dark)}.notice{margin:18px 0;padding:16px 18px;border:1px solid #ffd89c;background:#fff7e8;border-radius:8px}.section{margin-top:24px;background:#fff;border:1px solid var(--line);border-radius:8px;padding:34px}.section-head h2{margin:2px 0 18px;font-size:26px}.tool-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.tool-card{display:block;border:1px solid var(--line);border-radius:8px;padding:18px;text-decoration:none;color:var(--ink);background:#fbfbfc}.tool-card:hover{border-color:var(--green);background:var(--soft)}.tool-card span{display:inline-grid;place-items:center;min-width:42px;height:28px;border-radius:5px;background:var(--dark);color:#fff;font-weight:800}.tool-card b{display:block;margin-top:14px}.tool-card em{display:block;color:var(--muted);font-style:normal;margin-top:4px}.two{display:grid;grid-template-columns:minmax(0,1fr)360px;gap:22px}.steps{padding-left:0;list-style:none;margin:0}.steps li{display:grid;grid-template-columns:1fr;gap:4px;padding:13px 0;border-bottom:1px solid var(--line)}.steps span,.muted{color:var(--muted)}.codebox{align-self:start;background:#f7f8fa;border:1px solid var(--line);border-radius:8px;padding:18px}pre{white-space:pre-wrap;word-break:break-word;margin:0}code{background:#f1f3f5;border:1px solid #e1e4e8;border-radius:5px;padding:2px 6px}.config{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.config div{border:1px solid var(--line);border-radius:8px;padding:15px;background:#fafafa}.config span{display:block;color:var(--muted);font-size:13px;margin-bottom:8px}@media(max-width:860px){.topbar{display:block}.topbar nav{margin-top:10px;flex-wrap:wrap}.hero{padding:28px}.hero h1{font-size:31px}.tool-grid,.two,.config{grid-template-columns:1fr}.section{padding:24px}}