:root{color-scheme:light;--bg:#f3f5f9;--ink:#111827;--muted:#64748b;--card:#ffffff;--line:#dbe3ef;--line-strong:#bdc9da;--blue:#2563eb;--blue-2:#1d4ed8;--green:#059669;--amber:#d97706;--red:#dc2626;--shadow:0 18px 60px rgb(15 23 42/10%)}*{box-sizing:border-box}body,html{min-height:100%;margin:0}body{background:radial-gradient(circle at top left,rgb(37 99 235/13%),transparent 34rem),linear-gradient(180deg,#f8fafc 0,var(--bg) 100%);color:var(--ink);font-family:Inter,PingFang SC,Microsoft YaHei UI,Microsoft YaHei,Segoe UI,Arial,Helvetica,sans-serif}button,input,textarea{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.55}code{border-radius:7px;background:#eff6ff;color:#1d4ed8;padding:.15rem .38rem}.app-shell{width:min(1440px,100%);margin:0 auto;padding:28px}.hero-panel{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:24px;align-items:end;margin-bottom:18px;border:1px solid rgb(255 255 255/70%);border-radius:28px;background:linear-gradient(135deg,rgb(255 255 255/88%),rgb(239 246 255/84%)),linear-gradient(135deg,#2563eb,#7c3aed);box-shadow:var(--shadow);padding:clamp(24px,4vw,44px)}.eyebrow{margin:0 0 8px;color:var(--blue);font-size:.78rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase}h1,h2,h3,p{margin-top:0}h1{max-width:900px;margin-bottom:14px;font-size:clamp(2.1rem,5vw,4.9rem);letter-spacing:-.06em;line-height:.95}h2{margin-bottom:4px;font-size:1.18rem}h3{margin-bottom:8px;font-size:1rem}.hero-copy{max-width:760px;margin-bottom:0;color:#475569;font-size:1.05rem;line-height:1.8}.hero-status{min-width:220px;border:1px solid var(--line);border-radius:20px;background:rgb(255 255 255/75%);padding:18px}.hero-status span,.metric-grid span,.preview-grid label,.status-row span{display:block;color:var(--muted);font-size:.8rem}.hero-status strong{display:block;margin-top:6px;font-size:1.1rem}.grid{display:grid;gap:18px;margin-top:18px}.two-columns{grid-template-columns:minmax(360px,.82fr) minmax(0,1.18fr)}.align-start{align-items:start}.panel{border:1px solid var(--line);border-radius:24px;background:rgb(255 255 255/92%);box-shadow:0 12px 36px rgb(15 23 42/6%);padding:22px}.panel-heading{display:flex;gap:12px;align-items:flex-start;margin-bottom:18px}.muted,.panel-heading p{margin:0;color:var(--muted);line-height:1.6}.step{display:grid;flex:0 0 auto;width:38px;height:38px;place-items:center;border-radius:14px;background:#eff6ff;color:var(--blue-2);font-weight:800}.notice{margin-top:18px;border-radius:18px;padding:14px 16px;line-height:1.55}.notice.info{border:1px solid #bfdbfe;background:#eff6ff;color:#1e40af}.notice.success{border:1px solid #bbf7d0;background:#f0fdf4;color:#166534}.notice.warning{border:1px solid #fed7aa;background:#fff7ed;color:#9a3412}.notice.danger{border:1px solid #fecaca;background:#fef2f2;color:#991b1b}.custom-row,.inline-form,.upload-box{display:grid;gap:10px}.inline-form,.upload-box{grid-template-columns:minmax(0,1fr) auto}.inline-form{margin-top:12px}input,textarea{width:100%;border:1px solid var(--line);border-radius:14px;background:#ffffff;color:var(--ink);outline:none;padding:12px 13px;transition:border-color .15s ease,box-shadow .15s ease}input:focus,textarea:focus{border-color:#93c5fd;box-shadow:0 0 0 4px rgb(59 130 246/13%)}textarea{resize:vertical}button{border:1px solid var(--line-strong);border-radius:14px;background:#ffffff;color:var(--ink);padding:11px 15px;font-weight:700;transition:transform .15s ease,box-shadow .15s ease,border-color .15s ease}button:hover:not(:disabled){transform:translateY(-1px);border-color:#93c5fd;box-shadow:0 10px 22px rgb(37 99 235/12%)}button.primary{border-color:var(--blue);background:linear-gradient(135deg,var(--blue),#4f46e5);color:white}button.wide{width:100%;margin-top:16px}button.ghost{background:#f8fafc}button.danger{color:var(--red)}.status-card{margin-top:16px;border:1px solid var(--line);border-radius:18px;background:#f8fafc;padding:16px}.status-row{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:10px}.progress-track{overflow:hidden;height:10px;border-radius:999px;background:#e2e8f0}.progress-fill{height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--blue),#14b8a6);transition:width .4s ease}.status-card p{margin:10px 0 0;color:var(--muted);line-height:1.6}.danger-text{color:var(--red)!important}.media-panel{min-width:0}.preview-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.empty-media,.preview-grid video{display:block;width:100%;aspect-ratio:16/9;margin-top:8px;border:1px solid #0f172a;border-radius:18px;background:#0f172a;color:#cbd5e1}.empty-media{display:grid;place-items:center;border-color:var(--line);background:#f1f5f9}.settings-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.full-label,.settings-grid label{display:grid;gap:7px;color:var(--muted);font-size:.86rem;font-weight:700}.full-label{margin-top:12px}.toggle-row{display:flex!important;grid-column:1/-1;align-items:center;gap:10px}.toggle-row input{width:auto}.setting-hint{grid-column:1/-1;margin:-4px 0 2px;color:var(--muted);font-size:.82rem}.custom-header{display:flex;justify-content:space-between;gap:14px;align-items:center;margin-top:20px}.custom-header p{margin:0;color:var(--muted)}.custom-list{display:grid;gap:10px;margin-top:12px}.custom-row{grid-template-columns:.55fr .55fr minmax(0,1fr) minmax(0,1.3fr) auto}.metric-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin-top:14px}.metric-grid div{border:1px solid var(--line);border-radius:16px;background:#ffffff;padding:12px}.metric-grid strong{display:block;margin-top:5px}.tabs-content{margin-top:18px}pre{max-height:280px;overflow:auto;margin:0 0 18px;white-space:pre-wrap;border:1px solid var(--line);border-radius:18px;background:#0f172a;color:#e2e8f0;padding:16px;line-height:1.7}.segment-list{display:grid;gap:10px;margin-bottom:18px}.segment-list article{border:1px solid var(--line);border-radius:16px;background:#ffffff;padding:13px}.segment-list article span,.segment-list article strong{display:block}.segment-list article span{margin-top:4px;color:var(--blue-2);font-size:.82rem}.segment-list article p{margin:8px 0 0;color:var(--muted);line-height:1.65}@media (max-width:980px){.hero-panel,.preview-grid,.two-columns{grid-template-columns:1fr}.hero-status{min-width:0}}@media (max-width:680px){.app-shell{padding:14px}.hero-panel,.panel{border-radius:20px;padding:18px}.custom-row,.inline-form,.metric-grid,.settings-grid,.upload-box{grid-template-columns:1fr}}