:root{--ink:#1c1e22;--ink-2:#5a5f68;--ink-3:#9aa0a8;--line:#e6e8ec;--bg:#f7f8fa;--panel:#ffffff;--accent:#1f6feb;--accent-soft:#e8f0ff;--danger:#c0392b;--radius:14px;--shadow:0 6px 18px rgba(20,24,40,0.12)}*{box-sizing:border-box;margin:0;padding:0}body,html{height:100%}body{font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,PingFang SC,Microsoft YaHei,sans-serif;color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased}.home{min-height:100vh}.home-nav{position:-webkit-sticky;position:sticky;top:0;z-index:40;background:rgba(255,255,255,.92);-webkit-backdrop-filter:saturate(160%) blur(14px);backdrop-filter:saturate(160%) blur(14px);border-bottom:1px solid var(--line)}.home-nav-in{max-width:1120px;margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;height:60px}.brand{font-weight:700;font-size:17px;letter-spacing:.2px}.brand 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1}.step-bubble{background:transparent;border:none;cursor:pointer;color:#dfe3ea;display:inline-flex;align-items:center;gap:8px;padding:6px 8px;font:inherit;font-size:14px}.step-bubble:not(.todo){color:#fff}.step-num{display:inline-flex;align-items:center;justify-content:center;width:26px;height:26px;border-radius:50%;background:#2a2f38;color:#aeb4bf;font-size:13px;font-weight:700}.step-bubble.active .step-num{background:var(--accent);color:#fff;box-shadow:0 0 0 3px rgba(31,111,235,.35)}.step-bubble.done .step-num{background:#2e9e5b;color:#fff}.step-caption b{display:none}.toolbar{display:flex;gap:8px}.tb-btn,.toolbar{align-items:center}.tb-btn{border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.06);color:#eef;cursor:pointer;border-radius:999px;padding:8px 12px;font-size:13px;display:inline-flex;gap:6px}.tb-btn:hover{background:rgba(255,255,255,.14)}.tb-btn--danger:hover{color:#ffb3a7}.price-pill{display:inline-flex;flex-direction:column;line-height:1.05;margin-left:8px;background:var(--accent-soft);color:var(--accent)}.price-pill b{font-size:15px}.price-label{font-size:10.5px;opacity:.85}.toolbar-toast{position:fixed;left:50%;bottom:26px;transform:translateX(-50%);background:#262b33;color:#fff;padding:10px 18px;border-radius:999px;font-size:13px;box-shadow:0 6px 20px rgba(0,0,0,.35);z-index:90}.config-body{flex:1 1;display:grid;grid-template-columns:1fr 400px;grid-template-rows:1fr;min-height:0}.viewport{grid-column:1;overflow:hidden;background:#141720}.viewport-hint{position:absolute;left:20px;bottom:18px;color:#aeb6c2;font-size:12.5px;background:rgba(20,24,32,.82);padding:6px 12px;border-radius:999px}.panel-view{position:static;grid-column:2;background:rgba(18,21,28,.97);border-left:1px solid 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1}.lift-canvas{display:block}.ar-overlay{position:fixed;inset:0;z-index:200;background:#0b0d11;color:#fff;display:flex;flex-direction:column}.ar-topbar{display:flex;align-items:center;justify-content:space-between;padding:12px 18px;border-bottom:1px solid rgba(255,255,255,.12)}.ar-title{font-weight:650;font-size:15px}.ar-close{border:1px solid rgba(255,255,255,.25);background:rgba(255,255,255,.08);color:#fff;width:36px;height:36px;border-radius:50%;cursor:pointer;font-size:16px}.ar-close:hover{background:rgba(255,255,255,.18)}.ar-stage{flex:1 1;min-height:0;overflow:hidden}.ar-hint{color:#aeb6c2;font-size:12.5px;text-align:center;padding:10px 20px 14px;margin:0;border-top:1px solid rgba(255,255,255,.08)}@media (max-width:940px){.config-body{grid-template-columns:1fr;grid-template-rows:46% 54%}.panel-view{border-top:1px solid rgba(255,255,255,.1)}}