:root{color-scheme:light;--blue:#165dff;--ink:#162646;--muted:#64748b;--line:#e3e9f1}*{box-sizing:border-box}body{margin:0;background:#f5f7fb;color:var(--ink);font-family:"Microsoft YaHei","PingFang SC",sans-serif;font-size:15px;line-height:1.7}a{color:var(--blue);text-decoration:none}header{height:88px;max-width:1240px;margin:auto;display:flex;align-items:center;justify-content:space-between;padding:0 48px;border-bottom:1px solid var(--line)}.brand{display:flex;gap:12px;align-items:center;color:var(--ink);font-size:23px;font-weight:750;letter-spacing:1px}.shield{background:var(--blue);color:white;width:35px;height:40px;text-align:center;line-height:34px;clip-path:polygon(50% 0,100% 15%,90% 72%,50% 100%,10% 72%,0 15%);font-family:Georgia,serif;font-weight:bold}.brand-note{font-weight:400;font-size:13px;letter-spacing:0;color:var(--muted);border-left:1px solid #cbd5e1;padding-left:15px}.console{font-size:13px}main{max-width:1144px;margin:90px auto 72px;display:grid;grid-template-columns:1fr 460px;gap:72px;align-items:center;padding:0 24px}.eyebrow{font-size:12px;font-weight:700;color:var(--blue);letter-spacing:3px;margin-bottom:26px}h1{font-size:clamp(34px,3.5vw,48px);font-weight:650;line-height:1.45;letter-spacing:-1px;margin:0 0 24px}p{color:var(--muted);margin:14px 0 22px}.intro>p{font-size:16px}.examples{display:flex;gap:10px;flex-wrap:wrap;margin:34px 0 55px}.examples span{border:1px solid #dbe3ee;border-radius:6px;background:white;padding:7px 16px;font-size:13px;color:#385077}.note{border-left:2px solid #a8c3ff;padding-left:18px;font-size:12px;color:var(--muted)}.card{background:white;border:1px solid var(--line);border-radius:16px;padding:38px;box-shadow:0 16px 50px #16264606}.step{font-size:12px;font-weight:700;color:var(--blue);letter-spacing:1px;margin-bottom:14px}h2{font-size:25px;line-height:1.4;font-weight:650;margin:0 0 14px}.card p{font-size:13px}label{display:block;font-size:13px;font-weight:600;margin-bottom:9px}input:not([type=checkbox]):not([type=hidden]){width:100%;height:49px;border:1px solid #cdd7e5;border-radius:7px;padding:0 14px;background:#fcfdff;color:var(--ink);font-size:15px}input:focus-visible,button:focus-visible,a:focus-visible{outline:3px solid #acc8ff;outline-offset:3px}button,.button{display:flex;width:100%;align-items:center;justify-content:center;gap:20px;border:0;border-radius:7px;background:var(--blue);color:white;padding:13px 18px;min-height:48px;font-size:15px;font-family:inherit;cursor:pointer;margin-top:23px}button:hover,.button:hover{background:#084be0}.field-note{font-size:11px!important;margin-top:8px!important}.privacy{border-top:1px solid var(--line);padding-top:20px;margin-top:28px;font-size:12px;color:var(--muted)}.error{padding:12px 14px;border-radius:6px;background:#fff1ef;color:#9f3323;font-size:13px;margin-bottom:20px}.command{font-family:Consolas,monospace;letter-spacing:1px;background:#f0f5ff;border:1px solid #d4e2ff;padding:14px;border-radius:6px;font-size:15px;overflow-wrap:anywhere;user-select:all}.check{display:flex;gap:10px;font-weight:400;font-size:12px;color:var(--muted);margin-top:18px;align-items:flex-start}.check input{margin-top:5px;accent-color:var(--blue)}.plain{background:transparent;color:var(--muted);font-size:12px;margin-top:6px}.plain:hover{background:#f5f7fb;color:var(--ink)}footer{text-align:center;color:#8b98ab;font-size:11px;letter-spacing:1px;padding:24px}.muted{color:var(--muted)}@media(max-width:800px){header{padding:0 22px;height:76px}.brand{font-size:21px}.brand-note{display:none}main{grid-template-columns:1fr;gap:32px;margin:35px auto;max-width:540px}.intro h1{font-size:34px}.intro>p{font-size:14px}.eyebrow{margin-bottom:16px}.examples{margin:20px 0 0}.note{display:none}.card{padding:26px}.console{font-size:12px}}