:root{color-scheme:light;--bg:#f5f5f7;--panel:#fff;--text:#1d1d1f;--muted:#777780;--line:#e5e5ea;--accent:#0071e3;--info:#f0f6ff;--shadow:0 12px 36px rgba(0,0,0,.045)}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.65;background:var(--bg);color:var(--text)}body.dark{color-scheme:dark;--bg:#111113;--panel:#1c1c1e;--text:#f5f5f7;--muted:#a1a1a6;--line:#38383c;--info:#14233a;--shadow:none}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}button,input,textarea,select{font:inherit}button{cursor:pointer;border:0}button:disabled{opacity:.5;cursor:not-allowed}.topbar{height:74px;border-bottom:1px solid var(--line);background:var(--panel);display:flex;justify-content:space-between;align-items:center;padding:0 max(24px,calc((100vw - 1080px)/2));gap:24px}.brand{display:flex;align-items:center;gap:12px;color:var(--text);font-size:23px;font-weight:750;letter-spacing:-1px}.brand span{font-size:14px;font-weight:500;letter-spacing:0;color:var(--muted);border-left:1px solid var(--line);padding-left:12px}.top-actions{display:flex;gap:22px;align-items:center;font-size:14px}.icon-button{width:34px;height:34px;border-radius:50%;font-size:22px;background:var(--bg);color:var(--text)}.shell{max-width:860px;margin:auto;padding:50px 24px 25px}.hero{text-align:center;margin-bottom:32px}.eyebrow{color:var(--accent);font-size:12px;letter-spacing:2.5px;font-weight:700}h1{font-size:38px;line-height:1.3;letter-spacing:-1px;margin:12px 0 14px}h2{font-size:23px;line-height:1.4;letter-spacing:-.5px;margin:0 0 8px}h3{font-size:17px;margin:8px 0}.hero p,.section-heading p{color:var(--muted);margin:0}.hero p{font-size:16px}.badges{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin:24px 0 0}.badges span{font-size:12px;background:var(--panel);border:1px solid var(--line);border-radius:24px;padding:5px 12px;color:var(--muted)}.tabs{display:flex;gap:4px;padding:5px;background:#e8e8ed;border-radius:13px;margin-bottom:30px;overflow:auto}.dark .tabs{background:#242428}.tabs button{flex:1;padding:10px 12px;white-space:nowrap;background:transparent;color:var(--muted);border-radius:9px;font-size:14px;font-weight:550}.tabs button.active{color:var(--text);background:var(--panel);box-shadow:0 2px 5px #0000000c}.stepper{display:flex;justify-content:space-between;gap:12px;margin:0 6px 28px}.stepper>div{display:flex;gap:10px;align-items:center;font-size:14px;color:var(--muted)}.stepper b{border:1px solid var(--line);border-radius:50%;width:30px;height:30px;display:grid;place-items:center;font-size:13px;background:var(--panel)}.stepper .active{color:var(--accent)}.stepper .active b{color:#fff;background:var(--accent);border-color:var(--accent)}.stepper .done b{color:var(--accent);background:var(--info);border-color:var(--accent)}.card{background:var(--panel);border:1px solid var(--line);border-radius:22px;padding:32px;box-shadow:var(--shadow)}.section-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:15px;margin-bottom:28px}.section-heading p{font-size:14px}.step-tag{font-size:12px;white-space:nowrap;color:var(--muted);background:var(--bg);padding:4px 10px;border-radius:30px}label{display:block;font-size:14px;font-weight:600;margin:18px 0 9px}input,textarea,select{width:100%;border:1px solid var(--line);background:var(--bg);color:var(--text);border-radius:12px;padding:13px 15px;outline:none}textarea{resize:vertical;min-height:110px;font-size:14px;font-family:ui-monospace,Consolas,monospace}input:focus,textarea:focus,select:focus{border-color:var(--accent);box-shadow:0 0 0 3px #0071e315}button:focus-visible,a:focus-visible{outline:3px solid #0071e360;outline-offset:3px}.hint{font-size:12px;color:var(--muted);margin:9px 0 25px}.primary,.secondary,.danger{border-radius:12px;min-height:46px;padding:10px 20px;font-weight:550;font-size:15px}.primary{color:#fff;background:var(--accent)}.primary:hover{background:#0077ed}.secondary{background:var(--bg);color:var(--text);border:1px solid var(--line)}.danger{background:#fff0ee;color:#c43b30}.full{width:100%;margin-top:20px}.button-row{display:flex;gap:12px;margin-top:26px}.button-row .primary{flex:1}.button-row .secondary{min-width:85px}.small-link{font-size:13px;display:block;margin-top:12px}.info,.notice{background:var(--info);border:1px solid #0071e322;border-radius:12px;padding:13px 16px;font-size:14px;margin:18px 0}.notice{margin-bottom:24px}.muted{color:var(--muted)}.center{text-align:center}.details{display:grid;grid-template-columns:105px 1fr;gap:16px;font-size:14px;margin:28px 0}.details dt{color:var(--muted)}.details dd{margin:0;overflow-wrap:anywhere}.mono{font-family:ui-monospace,Consolas,monospace}.progress-orb{margin:0 auto 18px;background:var(--info);color:var(--accent);font-size:36px;width:78px;height:78px;border-radius:50%;display:grid;place-items:center}.progress-track{height:7px;background:var(--line);border-radius:10px;overflow:hidden;margin-top:28px}.progress-track>div{height:100%;background:var(--accent);width:0;transition:width .5s}.progress-meta{display:flex;justify-content:space-between;font-size:12px;color:var(--muted);margin-top:8px}.result{margin-top:25px;background:var(--bg);padding:18px;border-radius:12px;white-space:pre-wrap;overflow-wrap:anywhere;font-size:14px}.tutorial{padding-left:23px}.tutorial li{padding:10px 0 15px}.tutorial p{font-size:14px;color:var(--muted);margin:7px 0}.table-wrap{overflow:auto;margin-top:24px}table{border-collapse:collapse;width:100%;font-size:13px}th,td{text-align:left;padding:13px 10px;border-bottom:1px solid var(--line);white-space:nowrap}th{color:var(--muted);font-weight:550}td.wrap{white-space:normal;max-width:260px;overflow-wrap:anywhere}.tag{display:inline-block;font-size:12px;padding:3px 8px;border-radius:5px;background:var(--info);color:var(--accent)}footer{text-align:center;font-size:12px;color:var(--muted);margin-top:45px}footer span{margin:0 5px}.hidden{display:none!important}.toast{position:fixed;bottom:30px;left:50%;transform:translateX(-50%);max-width:calc(100vw - 32px);background:var(--text);color:var(--panel);padding:13px 20px;border-radius:12px;box-shadow:var(--shadow);font-size:14px;z-index:10}.admin-shell{max-width:1100px;margin:auto;padding:28px 24px}.admin-tabs{margin-top:20px}.admin-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.admin-grid>.wide{grid-column:1/-1}.stats{display:flex;gap:16px;margin-bottom:25px}.stat{flex:1;background:var(--panel);border:1px solid var(--line);padding:20px;border-radius:16px}.stat b{display:block;font-size:28px}.stat span{font-size:13px;color:var(--muted)}.field-row{display:flex;gap:12px;align-items:flex-end}.field-row>*{flex:1}.field-row button{flex:0 0 auto}.checkbox{display:flex;gap:8px;align-items:center;margin-top:16px}.checkbox input{width:18px;height:18px}.admin-login{max-width:420px;margin:90px auto}.compact{font-size:13px;padding:7px 12px;min-height:34px}.plan-edit{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px;padding:16px 0;border-bottom:1px solid var(--line)}.plan-edit strong{grid-column:1/-1}.plan-edit label{font-size:12px}.plan-edit input{font-size:14px}pre{font-family:ui-monospace,Consolas,monospace}body.loading{cursor:progress}@media(max-width:640px){.topbar{padding:0 18px;height:64px}.brand span{display:none}.shell{padding:32px 16px 20px}h1{font-size:29px}.hero p{font-size:14px}.badges{gap:6px}.badges span{font-size:11px;padding:4px 9px}.tabs{margin-bottom:22px}.tabs button{padding:9px 11px;font-size:13px}.card{padding:24px 20px;border-radius:18px}.stepper{gap:4px;margin:0 0 25px}.stepper>div{flex-direction:column;gap:7px;font-size:12px}.stepper b{width:28px;height:28px}.section-heading{margin-bottom:22px}.section-heading h2{font-size:21px}.details{grid-template-columns:82px 1fr;gap:12px}.admin-grid{grid-template-columns:1fr}.stats{flex-wrap:wrap}.stat{min-width:40%}.admin-shell{padding:24px 14px}.field-row{flex-wrap:wrap}.plan-edit{grid-template-columns:1fr}.admin-login{margin:35px 16px}}