:root{--bg:#0f1220;--card:#1a1e33;--card2:#232842;--text:#e8eaf2;--muted:#9aa0be;--accent:#6c5ce7;--accent2:#8a7bff;--ok:#2ecc71;--err:#ff6b6b;--border:#2c3252}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:radial-gradient(1200px 600px at 50% -10%,#1b2140,var(--bg));color:var(--text);min-height:100vh}.app{max-width:760px;margin:0 auto;padding:26px 20px 80px}header h1{margin:0 0 4px;font-size:26px}.sub{margin:0 0 24px;color:var(--muted)}.shell{display:flex;flex-direction:column;min-height:100vh}.topbar{position:-webkit-sticky;position:sticky;top:0;z-index:50;gap:14px;height:56px;padding:0 18px;background:rgba(20,24,45,.92);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--border)}.logo,.topbar{display:flex;align-items:center}.logo{gap:8px;font-weight:800;font-size:17px;letter-spacing:.2px}.logo-mark{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:8px;font-size:12px;color:#fff;background:linear-gradient(135deg,var(--accent),var(--accent2))}.topbar-right{margin-left:auto;display:flex;align-items:center;gap:10px}.hamburger{display:none;background:none;border:none;font-size:20px;padding:4px}.avatar,.hamburger{color:var(--text);cursor:pointer}.avatar{width:34px;height:34px;border-radius:50%;border:2px solid var(--accent2);background:var(--card2);font-weight:800;font-size:14px;display:flex;align-items:center;justify-content:center}.profile-wrap{position:relative}.profile-menu{position:absolute;right:0;top:44px;width:240px;z-index:60;background:var(--card);border:1px solid var(--border);border-radius:12px;padding:12px 14px;box-shadow:0 16px 48px 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10px;border-radius:9px;font-size:14px;font-weight:600;color:var(--muted);cursor:default;margin-bottom:2px}.nav-item.current{background:rgba(108,92,231,.18);color:var(--text)}.nav-item.disabled{opacity:.55;font-weight:500}.nav-icon{font-size:15px}.side-foot{margin-top:auto;padding-top:18px}.side-foot .side-label{margin-bottom:8px}.nav-btn{width:100%;text-align:left;background:none;border:none;font-family:inherit;cursor:pointer}.nav-btn:hover{background:rgba(108,92,231,.14);color:var(--text)}.side-backdrop{display:none}.shell-main{flex:1 1;min-width:0}@media (max-width:820px){.hamburger{display:block}.sidebar{position:fixed;top:56px;bottom:0;left:0;z-index:55;transform:translateX(-100%);transition:transform .2s;background:var(--card)}.sidebar.open{transform:translateX(0)}.side-backdrop{display:block;position:fixed;inset:56px 0 0 0;z-index:54;background:rgba(0,0,0,.45)}}.fb-backdrop{position:fixed;inset:0;z-index:100;display:flex;align-items:center;justify-content:center;padding:20px;background:rgba(0,0,0,.55);-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);cursor:pointer}.fb-modal{width:100%;max-width:480px;overflow-y:auto;-webkit-overflow-scrolling:touch;max-height:90vh;max-height:90dvh;background:var(--card);border:1px solid var(--border);border-radius:14px;padding:18px 20px 20px;box-shadow:0 24px 64px rgba(0,0,0,.6);cursor:default}.fb-head{justify-content:space-between;gap:12px}.fb-head,.fb-head h3{display:flex;align-items:center}.fb-head h3{margin:0;font-size:17px;gap:9px}.fb-x{background:none;border:none;color:var(--muted);font-size:24px;line-height:1;cursor:pointer;padding:0 4px}.fb-x:hover{color:var(--text)}.fb-form{display:grid;grid-gap:14px;gap:14px;margin-top:16px}.fb-form label{display:grid;grid-gap:6px;gap:6px;font-size:12px;color:var(--muted)}.fb-form 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16px;color:var(--muted);font-size:14px}.badge{font-size:11px;font-weight:700;padding:3px 9px;border-radius:999px;background:var(--card2);border:1px solid var(--border);color:var(--accent2)}.badge.pro{color:#fff;border:none}.badge.pro,.mini.upgrade{background:linear-gradient(90deg,var(--accent),var(--accent2))}.mini.upgrade{text-decoration:none;white-space:nowrap}.mini.ghost{background:var(--card2);border:1px solid var(--border);color:var(--muted)}.mini.ghost:hover{color:var(--text);border-color:var(--accent)}.paywall{margin-top:16px;padding:14px 16px;border-radius:12px;background:rgba(108,92,231,.12);border:1px solid var(--accent)}.paywall p{margin:0 0 10px;font-size:14px;color:var(--text)}.paywall .btn{margin-top:0;display:block;text-align:center;text-decoration:none}.card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:22px;margin-bottom:18px;box-shadow:0 20px 60px rgba(0,0,0,.35)}.card h3{margin:0 0 14px;font-size:17px;display:flex;gap:10px}.card 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input{accent-color:var(--accent);width:15px;height:15px;margin:2px 0 0;flex-shrink:0}.method-opt.active{border-color:var(--accent);color:var(--text)}.mo-body{display:flex;flex-direction:column;gap:4px;min-width:0}.mo-title{display:flex;align-items:center;flex-wrap:wrap;gap:7px;font-weight:700;font-size:14px;color:var(--text)}.mo-tag{font-size:10px;font-weight:700;letter-spacing:.4px;text-transform:uppercase;padding:2px 7px;border-radius:999px;white-space:nowrap;background:linear-gradient(90deg,var(--accent),var(--accent2));color:#fff}.mo-tag.alt{background:none;border:1px solid var(--border);color:var(--muted)}.mo-desc{font-size:12px;line-height:1.45}.mo-meta{font-size:12px;font-weight:600;color:var(--accent2)}.dl-list{margin-top:14px;display:grid;grid-gap:12px;gap:12px}.dl-row{display:grid;grid-gap:5px;gap:5px}.dl-head{display:flex;justify-content:space-between;gap:10px;font-size:12px}.dl-head span:first-child{font-weight:600;color:var(--text)}.dl-size{color:var(--muted);white-space:nowrap}.dl-note{margin:0}@media (max-width:600px){.method-toggle{flex-direction:column}}.btn{margin-top:16px;width:100%;padding:13px;border:none;border-radius:12px;background:linear-gradient(90deg,var(--accent),var(--accent2));color:#fff;font-size:15px;font-weight:700;cursor:pointer}.btn:disabled{opacity:.45;cursor:not-allowed}.btn.download{display:block;text-align:center;text-decoration:none;margin-top:14px;background:var(--ok)}.btn-secondary{margin-top:10px;width:100%;padding:11px;border:1px solid var(--border);border-radius:12px;background:var(--card2);color:var(--muted);font-size:13px;font-weight:600;cursor:pointer}.btn-secondary:hover{border-color:var(--accent);color:var(--text)}.status{margin:12px 0 0;color:var(--muted);font-size:14px;min-height:18px}.status.err{color:var(--err)}.hint{color:var(--muted);font-size:13px;margin:0 0 14px}.prompt-box{background:var(--card2);border:1px solid 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label{display:grid;grid-gap:5px;gap:5px;font-size:12px;color:var(--muted)}.controls label output{color:var(--accent2);font-weight:600}.controls input[type=range],.controls select{width:100%}.controls select{background:var(--card2);border:1px solid var(--border);color:var(--text);padding:8px 10px;border-radius:8px;font:inherit;font-size:13px}.controls input[type=range]{accent-color:var(--accent)}.controls label.color{display:flex;align-items:center;justify-content:space-between;gap:10px}.controls label.color input[type=color]{width:46px;height:30px;border:1px solid var(--border);border-radius:6px;background:var(--card2);cursor:pointer;padding:2px}.controls label.chk{flex-direction:row;align-items:center;gap:8px}.controls label.chk input{accent-color:var(--accent);width:16px;height:16px}.preview-wrap{position:relative;width:-moz-fit-content;width:fit-content;max-width:100%;margin:6px auto 16px;border-radius:12px;overflow:hidden;background:#000}.preview-wrap video{display:block;max-height:60vh;max-width:100%}.cap-overlay{position:absolute;inset:0;pointer-events:none}.cap-line{position:absolute;left:6%;right:6%;text-align:center;font-family:Arial,sans-serif;font-weight:800;line-height:1.12}.cap-line .w{display:inline-block}.cap-line .box{padding:0 .12em;border-radius:.14em}.preview-video{width:100%;max-height:70vh;margin-top:16px;border-radius:12px;background:#000;border:1px solid var(--border)}.progress-bar{width:100%;height:6px;border-radius:3px;background:var(--card2);margin-top:8px;overflow:hidden}.progress-bar .fill{height:100%;background:linear-gradient(90deg,var(--accent),var(--accent2));transition:width .3s}.progress-bar .fill.indeterminate{width:40%;animation:slide 1.2s ease-in-out infinite}@keyframes slide{0%{margin-left:-40%}to{margin-left:100%}}@media (max-width:520px){.controls{grid-template-columns:1fr}}.tl{margin-top:14px}.tl-bar{display:flex;align-items:center;gap:6px;margin-bottom:6px}.tl-btn{background:var(--card2);border:1px solid var(--border);color:var(--text);padding:5px 12px;border-radius:7px;font-size:12px;font-weight:600;cursor:pointer}.tl-btn:hover{border-color:var(--accent)}.tl-btn:disabled{opacity:.4;cursor:not-allowed}.tl-btn-del{color:var(--err)}.tl-spacer{flex:1 1}.tl-zoom-lbl{font-size:11px;color:var(--muted)}.tl-scroll{overflow-x:auto;overflow-y:hidden;border:1px solid var(--border);border-radius:10px;background:#12152a}.tl-scroll::-webkit-scrollbar{height:8px}.tl-scroll::-webkit-scrollbar-track{background:transparent}.tl-scroll::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}.tl-scroll::-webkit-scrollbar-thumb:hover{background:var(--muted)}.tl-track{position:relative;min-height:76px;-webkit-user-select:none;-moz-user-select:none;user-select:none;cursor:crosshair}.tl-ruler{position:relative;height:22px;border-bottom:1px solid var(--border)}.tl-tick{position:absolute;top:0;height:100%;border-left:1px solid var(--border)}.tl-tick span{position:absolute;top:3px;left:4px;font-size:10px;color:var(--muted);white-space:nowrap;pointer-events:none}.tl-tick.minor{border-left-color:rgba(44,50,82,.5)}.tl-lane{position:relative;height:46px;margin:4px 0}.tl-blk{position:absolute;top:2px;height:42px;border-radius:6px;background:rgba(108,92,231,.4);border:1px solid rgba(108,92,231,.55);cursor:-webkit-grab;cursor:grab;display:flex;align-items:center;overflow:hidden;transition:background .12s,border-color .12s}.tl-blk:hover{background:rgba(108,92,231,.6)}.tl-blk.sel{background:rgba(138,123,255,.65);border-color:var(--accent2);box-shadow:0 0 0 1px var(--accent2)}.tl-blk:active{cursor:-webkit-grabbing;cursor:grabbing}.tl-blk-txt{flex:1 1;min-width:0;padding:0 10px;font-size:11px;color:#fff;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;pointer-events:none}.tl-edge{position:absolute;top:0;width:7px;height:100%;cursor:col-resize;z-index:1}.tl-edge-l{left:0;border-radius:6px 0 0 6px}.tl-edge-r{right:0;border-radius:0 6px 6px 0}.tl-edge:hover{background:hsla(0,0%,100%,.15)}.tl-head{position:absolute;top:0;bottom:0;width:2px;left:0;background:#f44;pointer-events:none;z-index:2}.tl-head:before{content:"";position:absolute;top:0;left:-4px;border-left:5px solid transparent;border-right:5px solid transparent;border-top:7px solid #f44}.tl-edit{display:flex;align-items:center;gap:8px;margin-top:6px;padding:7px 10px;background:var(--card2);border:1px solid var(--border);border-radius:8px}.tl-edit-num{font-size:12px;color:var(--accent2);font-weight:700;white-space:nowrap}.tl-edit-in{flex:1 1;background:transparent;border:1px solid var(--border);color:var(--text);padding:5px 8px;border-radius:6px;font-size:13px;outline:none;font-family:inherit}.tl-edit-in:focus{border-color:var(--accent)}.tl-edit-t{font-size:11px;color:var(--muted);white-space:nowrap;font-family:ui-monospace,Menlo,Consolas,monospace}.share-hint{margin:8px 0 0;text-align:center}.model-lab{margin-top:12px;padding:12px 14px;border-radius:10px;background:var(--card2);border:1px dashed var(--border)}.lab-head{display:flex;align-items:center;gap:8px;margin-bottom:8px}.lab-head label{font-size:12px;font-weight:600;color:var(--text)}.lab-tag{font-size:10px;font-weight:700;letter-spacing:.4px;text-transform:uppercase;padding:2px 7px;border-radius:999px;background:var(--err);color:#fff}.model-lab select{width:100%;padding:9px 11px;border-radius:9px;font:inherit;font-size:16px;background:var(--card);border:1px solid var(--border);color:var(--text)}.lab-note{margin:8px 0 0}.lab-result{margin:6px 0 0;color:var(--accent2)}.seo{margin-top:34px}.seo h2{font-size:20px;margin:0 0 14px}.seo h3{font-size:15px;margin:0 0 6px}.seo p{margin:0;color:var(--muted);font-size:14px;line-height:1.6}.seo-steps{list-style:none;counter-reset:step;padding:0;margin:0;display:grid;grid-gap:12px;gap:12px}.seo-steps li{counter-increment:step;position:relative;padding:14px 16px 14px 52px;border-radius:12px;background:var(--card);border:1px solid var(--border)}.seo-steps li:before{content:counter(step);position:absolute;left:16px;top:15px;width:24px;height:24px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:800;color:#fff;background:linear-gradient(135deg,var(--accent),var(--accent2))}.seo-faq{display:grid;grid-gap:8px;gap:8px}.seo-faq details{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:12px 16px}.seo-faq summary{cursor:pointer;font-weight:600;font-size:14px;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:12px}.seo-faq summary::-webkit-details-marker{display:none}.seo-faq summary:after{content:"+";color:var(--accent2);font-size:18px}.seo-faq details[open] summary:after{content:"\2212"}.seo-faq details[open] summary{margin-bottom:8px}.tap-play{position:absolute;left:0;right:0;top:0;bottom:56px;background:none;border:none;padding:0;margin:0;cursor:pointer;-webkit-tap-highlight-color:transparent}.tap-play:focus-visible{outline:2px solid var(--accent2);outline-offset:-2px}.tl-edit-row{gap:10px}.tl-edit-row,.tl-times{display:flex;align-items:center}.tl-times{flex-wrap:wrap;gap:8px 12px;margin-top:10px}.tl-time{display:flex;align-items:center;gap:6px}.tl-time-lbl{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.5px}.tl-time-in{width:84px;padding:7px 8px;border-radius:8px;font:inherit;font-size:16px;text-align:center;background:var(--card2);border:1px solid var(--border);color:var(--text);-webkit-appearance:none;-moz-appearance:none;appearance:none}.tl-time-in:focus{outline:none;border-color:var(--accent)}.tl-nudge{min-width:30px;font-size:15px;line-height:1;padding:6px 8px}.tl-edit-t{margin:10px 0 0}