:root{color:#f8fafc;background:#040914;font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Microsoft YaHei,sans-serif;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;--gold: #ffd21f;--gold-soft: #fff2ad;--card: rgba(8, 14, 28, .72);--card-weak: rgba(255, 255, 255, .08);--line: rgba(255, 255, 255, .12);--muted: rgba(255, 255, 255, .58)}*{box-sizing:border-box}html,body,#root{min-height:100%;margin:0}body{min-width:320px;overflow-x:hidden;background:#040914}button,input{font:inherit}button,.toolbar-chip{border:1px solid var(--line);border-radius:999px;background:#ffffff14;color:#fff;cursor:pointer;-webkit-user-select:none;user-select:none;touch-action:manipulation}button:disabled,.toolbar-chip:has(input:disabled){cursor:not-allowed;opacity:.48}input[type=file]{display:none}input[type=range]{width:100%;accent-color:var(--gold)}input[type=number]{width:100%;border:1px solid rgba(255,255,255,.12);border-radius:14px;background:#00000038;color:#fff;padding:9px 10px;outline:none}.tts-like-page{position:relative;min-height:100vh;background:#040914;overflow-x:hidden}.tts-like-page:before{content:"";position:fixed;top:0;right:0;bottom:0;left:0;z-index:0;pointer-events:none;background:linear-gradient(180deg,#0409141a,#0409148c 58%,#040914e0)}.tts-bg{position:fixed;top:0;right:0;bottom:0;left:0;z-index:0;overflow:hidden;pointer-events:none}.tts-bg-base{position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(ellipse 120% 60% at 50% 0%,rgba(14,22,54,.9) 0%,transparent 70%),radial-gradient(ellipse 100% 50% at 50% 100%,rgba(6,10,30,.95) 0%,transparent 65%),linear-gradient(160deg,#040a18,#020810,#050c1e)}.tts-bg-grid{position:absolute;top:0;right:0;bottom:0;left:0;background-image:linear-gradient(rgba(255,210,31,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,210,31,.045) 1px,transparent 1px),linear-gradient(rgba(99,102,241,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(99,102,241,.025) 1px,transparent 1px);background-size:30px 30px,30px 30px,120px 120px,120px 120px;-webkit-mask-image:radial-gradient(ellipse 90% 90% at 50% 50%,black 20%,transparent 80%);mask-image:radial-gradient(ellipse 90% 90% at 50% 50%,black 20%,transparent 80%)}.tts-bg-dots{position:absolute;top:0;right:0;bottom:0;left:0;background-image:radial-gradient(circle,rgba(255,210,31,.18) 1px,transparent 1px);background-size:60px 60px;-webkit-mask-image:radial-gradient(ellipse 80% 80% at 50% 50%,black 0%,transparent 75%);mask-image:radial-gradient(ellipse 80% 80% at 50% 50%,black 0%,transparent 75%);animation:dotsShift 20s linear infinite}@keyframes dotsShift{0%{background-position:0 0}to{background-position:60px 60px}}.tts-bg-glow{position:absolute;border-radius:50%;pointer-events:none;animation:glowBreath 9s ease-in-out infinite}.tts-bg-glow-gold{width:350px;height:350px;top:-100px;right:-90px;background:radial-gradient(circle,rgba(255,196,54,.26) 0%,rgba(255,196,54,.08) 45%,transparent 70%);filter:blur(60px)}.tts-bg-glow-indigo{width:400px;height:400px;bottom:40px;left:-140px;background:radial-gradient(circle,rgba(99,102,241,.2) 0%,rgba(99,102,241,.06) 45%,transparent 70%);filter:blur(70px);animation-delay:-4s}.tts-bg-glow-teal{width:280px;height:280px;top:45%;right:-80px;background:radial-gradient(circle,rgba(20,184,166,.14) 0%,rgba(20,184,166,.04) 45%,transparent 70%);filter:blur(55px);animation-delay:-7s}@keyframes glowBreath{0%,to{opacity:.55;transform:scale(1)}50%{opacity:1;transform:scale(1.18)}}.tts-bg-edge-top,.tts-bg-edge-bottom{position:absolute;height:1px}.tts-bg-edge-top{top:0;left:5%;right:5%;background:linear-gradient(90deg,transparent,rgba(255,210,31,.55),rgba(255,255,255,.2),rgba(255,210,31,.55),transparent);box-shadow:0 0 24px #ffd21f38}.tts-bg-edge-bottom{bottom:0;left:10%;right:10%;background:linear-gradient(90deg,transparent,rgba(99,102,241,.45),rgba(99,102,241,.45),transparent);box-shadow:0 0 20px #6366f12e}.mock-nav-bar{position:relative;z-index:1;height:48px;display:flex;align-items:center;justify-content:center;gap:8px;color:#fff}.mock-nav-bar strong{color:var(--gold-soft)}.mock-nav-bar span{color:#ffffffb8;font-size:14px}.tts-shell{position:relative;z-index:1;width:min(1180px,100%);min-height:0;margin:0 auto;padding:8px 12px 28px}.step-scroll{width:100%;overflow-x:auto;margin-bottom:8px;white-space:nowrap;scrollbar-width:none;text-align:left;scroll-behavior:auto}.step-scroll::-webkit-scrollbar{display:none}.step-nav{display:inline-flex;align-items:center;justify-content:flex-start;min-width:max-content;padding:4px max(12px,calc(50vw - 72px)) 10px}.step-fragment{display:inline-flex;align-items:center}.step-item{display:inline-flex;align-items:center;gap:5px;padding:5px 9px;flex-shrink:0}.step-num{display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;border-radius:50%;background:#ffffff14;color:#ffffff9e;font-size:11px;font-weight:700}.step-text{color:#ffffff8a;font-size:10px;font-weight:600;white-space:nowrap}.step-item.active{background:#ffd21f1f;border-color:#ffd21f3d}.step-item.active .step-num{background:linear-gradient(135deg,#ffe179,#ffc91b);color:#0b0d12;box-shadow:0 4px 9px #ffc91b47}.step-item.active .step-text{color:var(--gold-soft)}.step-arrow{margin:0 5px;color:#ffd21fd1;font-size:17px;font-weight:700}.workbench-card{display:flex;flex-direction:column;gap:12px;padding:12px;border-radius:20px;background:#080e1c2e;box-shadow:0 12px 24px #0000002e;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);overflow:hidden}.workbench-toolbar{display:flex;align-items:center;gap:8px;overflow-x:auto;padding-bottom:2px;scrollbar-width:none}.workbench-toolbar::-webkit-scrollbar{display:none}.toolbar-chip{display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;min-height:36px;padding:8px 13px;font-size:13px;font-weight:700}.toolbar-chip-primary{border:none;color:#10131a;background:linear-gradient(135deg,#ffe179,#ffc91b);box-shadow:0 10px 22px #ffc91b38}.toolbar-chip-generate{border:none;color:#07111f;background:linear-gradient(135deg,#7df9ff,#ffe179 48%,#ffb21d);box-shadow:0 12px 26px #ffc91b47,0 0 22px #7df9ff2e}.toolbar-chip-danger{color:#fecdd3;border-color:#fb71853d;background:#fb71851f}.generate-status{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:10px;padding:10px 12px;border:1px solid rgba(255,225,121,.18);border-radius:14px;color:#fff7d8e6;background:#ffe17914;font-size:12px}.generate-status a{flex-shrink:0;color:#ffe179;font-weight:800}.generate-status.done{border-color:#22c55e47;background:#22c55e1a}.generate-status.error{border-color:#fb71854d;color:#fecdd3;background:#fb71851f}.editor-layout{display:block}.preview-panel,.timeline-panel{border:1px solid rgba(255,255,255,.1);border-radius:18px;background:#04091461;box-shadow:inset 0 1px #ffffff0a}.preview-panel,.timeline-panel{padding:12px}.panel-title-row,.timeline-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px}.panel-title-row.compact{margin-bottom:8px}.panel-kicker{display:block;color:var(--gold);font-size:11px;font-weight:800;letter-spacing:.06em}.panel-title-row strong,.timeline-head strong{display:block;margin-top:2px;color:#fff;font-size:14px}.hint-pill{flex-shrink:0;border-radius:999px;padding:6px 10px;background:#ffd21f1f;color:var(--gold-soft);font-size:12px;font-weight:800}.phone-frame{width:min(390px,100%);margin:0 auto;aspect-ratio:9 / 16;padding:7px;border-radius:28px;background:linear-gradient(145deg,#ffffff14,#000000a6);box-shadow:inset 0 0 0 1px #ffffff14,0 18px 44px #00000057}.stage{position:relative;width:100%;height:100%;overflow:hidden;border-radius:22px;background:#000;touch-action:none;-webkit-user-select:none;user-select:none}.main-video{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;object-fit:contain;background:transparent}.video-fallback{position:absolute;top:0;right:0;bottom:0;left:0;z-index:4;display:grid;place-content:center;gap:8px;padding:24px;text-align:center;background:#040914e6}.video-fallback strong{color:var(--gold-soft)}.video-fallback span{color:#ffffffb3;font-size:12px;line-height:1.5}.overlay-frame{position:absolute;z-index:6;transform:translate(-50%,-50%);overflow:hidden;border-radius:12px;background:#000;cursor:grab;touch-action:none;-webkit-user-select:none;user-select:none}.overlay-frame:active{cursor:grabbing}.overlay-frame.selected{outline:2px solid #fff;outline-offset:3px;box-shadow:0 0 0 6px #ffd21f2e}.overlay-main-media{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;pointer-events:none;object-fit:contain}.media-pill{position:absolute;left:10px;right:10px;bottom:10px;z-index:3;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;border-radius:999px;padding:5px 8px;background:#0000008c;color:#ffffffd1;font-size:11px;pointer-events:none}.resize-corner{position:absolute;right:10px;bottom:10px;z-index:4;width:32px;height:32px;padding:0;border:3px solid #fff;border-radius:50%;background:linear-gradient(135deg,#ffe179,#ffc91b);cursor:nwse-resize;touch-action:none}.transport-bar{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:8px;margin-top:10px}.round-btn,.mini-btn,.mini-actions button{min-height:34px;padding:7px 11px;font-size:12px;font-weight:700}.control-stack{display:grid;gap:10px}.control-stack label{display:grid;gap:6px;color:#ffffffbd;font-size:12px;font-weight:700}.control-grid.two,.mini-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px}.layer-tools{display:grid;gap:9px;border:1px solid rgba(255,210,31,.14);border-radius:14px;padding:10px;background:#ffd21f0f}.layer-tools strong,.layer-tools em{display:block}.layer-tools strong{color:#fff;font-size:13px}.layer-tools em{margin-top:3px;color:#ffffff94;font-size:11px;font-style:normal}.layer-actions{display:grid;grid-template-columns:repeat(4,1fr);gap:6px}.layer-actions button{min-height:32px;padding:6px 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#fb718573;pointer-events:none}.playhead:before{content:"";position:absolute;left:50%;top:0;width:12px;height:12px;transform:translate(-50%,-30%) rotate(45deg);border-radius:3px;background:#fb7185}.track-row{position:relative;min-height:58px;border-top:1px solid rgba(255,255,255,.08)}.track-label{position:absolute;left:-78px;top:0;bottom:0;width:74px;display:grid;place-items:center;color:#ffffffb3;background:#080e1cf5;border-right:1px solid rgba(255,255,255,.08);font-size:12px;font-weight:800}.main-track-clip{position:absolute;left:0;top:11px;height:36px;display:flex;align-items:center;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;border-radius:12px;padding:0 12px;background:linear-gradient(135deg,#3b82f6b8,#6366f194);color:#fff;font-size:12px;font-weight:800}.track-lane{position:relative;min-height:58px;background:repeating-linear-gradient(90deg,rgba(255,255,255,.06) 0,rgba(255,255,255,.06) 1px,transparent 1px,transparent 42px)}.timeline-clip{position:absolute;top:9px;height:40px;min-width:42px;overflow:hidden;border:1px solid rgba(255,255,255,.18);border-radius:13px;padding:6px 14px;background:linear-gradient(135deg,#ffd21fc7,#f59e0b8f);color:#111827;cursor:grab;touch-action:none;-webkit-user-select:none;user-select:none}.timeline-clip.video{background:linear-gradient(135deg,#14b8a6d1,#2563eb9e);color:#fff}.timeline-clip.selected{outline:2px solid #fff;outline-offset:2px}.timeline-clip span,.timeline-clip em{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;pointer-events:none}.timeline-clip span{font-size:11px;font-weight:900}.timeline-clip em{margin-top:2px;font-size:10px;font-style:normal;opacity:.76}.timeline-clip i,.timeline-clip b{position:absolute;top:0;width:12px;height:100%;background:#ffffff3d;cursor:ew-resize}.timeline-clip i{left:0}.timeline-clip b{right:0}.clip-modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:40;display:grid;place-items:center;padding:18px;background:#00000094;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.clip-modal{width:min(430px,100%);max-height:min(76vh,680px);overflow:auto;border:1px solid rgba(255,210,31,.18);border-radius:22px;background:linear-gradient(180deg,rgba(255,210,31,.08),transparent 110px),#080e1cf0;box-shadow:0 24px 80px #0000007a,inset 0 1px #ffffff0f;padding:16px}.clip-modal-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:14px}.clip-modal-head strong{display:block;max-width:270px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:#fff;font-size:16px}.modal-close{flex-shrink:0;min-height:34px;padding:7px 12px;color:var(--gold-soft);font-size:12px;font-weight:800}@media (max-width: 900px){.mock-nav-bar{height:44px}.tts-shell{padding:6px 10px 20px}.workbench-card{padding:10px;border-radius:18px}.workbench-toolbar{margin:0 -2px}.toolbar-chip{min-height:34px;padding:7px 11px;font-size:12px}.phone-frame{width:min(92vw,380px);padding:6px;border-radius:25px}.stage{border-radius:20px}.track-label{font-size:11px}}@media (max-width: 430px){.panel-title-row,.timeline-head{align-items:flex-start;flex-direction:column}.phone-frame{width:min(94vw,350px)}.control-grid.two,.mini-actions,.transport-bar{grid-template-columns:1fr}.timeline-head strong{font-size:12px}}