:root{color:#172033;background:#f5f7fb;font-family:Inter,Avenir Next,PingFang SC,Microsoft YaHei,sans-serif;font-synthesis:none;--ink: #172033;--muted: #6f7889;--line: #e3e7ee;--surface: #ffffff;--blue: #2563eb;--blue-dark: #1d4ed8;--blue-soft: #eef4ff;--green: #13a36f}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-width:320px;min-height:100vh;background:#f5f7fb}button,textarea,input{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible,textarea:focus-visible{outline:3px solid rgba(37,99,235,.22);outline-offset:3px}.app-shell{min-height:100vh}.site-header{display:flex;align-items:center;justify-content:space-between;width:min(1040px,calc(100% - 40px));height:72px;margin:0 auto;border-bottom:1px solid var(--line)}.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-size:18px;font-weight:750;letter-spacing:-.02em;text-decoration:none}.logo-icon{display:grid;width:34px;height:34px;place-items:center;padding-left:2px;color:#fff;background:var(--blue);border-radius:10px;font-size:12px}.tool-nav{display:flex;gap:6px;padding:4px;background:#edf0f5;border-radius:10px}.tool-nav button{min-height:34px;padding:0 13px;color:#687286;background:transparent;border:0;border-radius:7px;cursor:pointer;font-size:13px;font-weight:700}.tool-nav .tool-nav__item--active{color:var(--ink);background:#fff;box-shadow:0 2px 8px #1e2a4414}.main-content{width:min(960px,calc(100% - 40px));margin:0 auto;padding:76px 0 42px}.intro{max-width:760px;margin:0 auto;text-align:center}.tool-label{display:inline-flex;padding:7px 12px;color:var(--blue);background:var(--blue-soft);border-radius:999px;font-size:12px;font-weight:700}h1{margin:22px 0 0;color:var(--ink);font-family:Arial Narrow,Avenir Next Condensed,PingFang SC,sans-serif;font-size:clamp(38px,6vw,62px);font-weight:800;letter-spacing:-.055em;line-height:1.08}.intro>p{margin:18px 0 0;color:var(--muted);font-size:15px;line-height:1.7}.parser{margin-top:34px;padding:22px;text-align:left;background:var(--surface);border:1px solid var(--line);border-radius:18px;box-shadow:0 18px 50px #25355214}.parser label{display:block;margin:0 0 10px;color:#384257;font-size:13px;font-weight:700}.input-row{position:relative}.input-row textarea{display:block;width:100%;min-height:112px;resize:vertical;padding:17px 76px 17px 17px;color:var(--ink);background:#fafbfc;border:1px solid #d9dee8;border-radius:12px;font-size:15px;line-height:1.65;transition:border-color .16s ease,box-shadow .16s ease}.input-row textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px #2563eb1a;outline:0}.input-row textarea::placeholder{color:#a0a7b4}.input-row textarea:disabled{opacity:.72}.paste-button{position:absolute;top:12px;right:12px;min-width:52px;height:34px;color:var(--blue);background:var(--blue-soft);border:0;border-radius:8px;cursor:pointer;font-size:13px;font-weight:700}.resolve-button{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;min-height:52px;margin-top:14px;color:#fff;background:var(--blue);border:0;border-radius:11px;cursor:pointer;font-size:15px;font-weight:750;transition:background .16s ease,transform .16s ease}.resolve-button:not(:disabled):hover{background:var(--blue-dark);transform:translateY(-1px)}.resolve-button:disabled{cursor:not-allowed;opacity:.58}.spinner{width:17px;height:17px;border:2px solid rgba(255,255,255,.42);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite}.form-error,.download-error{margin:12px 2px 0;color:#c13c35;font-size:13px;line-height:1.55}.result-card{scroll-margin-top:24px;margin-top:54px;overflow:hidden;background:var(--surface);border:1px solid var(--line);border-radius:20px;box-shadow:0 22px 60px #25355217;animation:reveal .26s ease-out both}.result-heading{display:flex;align-items:center;justify-content:space-between;min-height:58px;padding:0 22px;border-bottom:1px solid var(--line)}.result-heading>div{display:flex;align-items:center;gap:9px}.result-platform,.result-duration{padding:6px 9px;color:#44506a;background:#f1f3f7;border-radius:7px;font-size:12px;font-weight:700}.ready-mark{display:inline-flex;align-items:center;gap:7px;color:var(--green);font-size:12px;font-weight:700}.ready-mark i{width:7px;height:7px;background:var(--green);border-radius:50%}.media-box{display:grid;min-height:500px;place-items:center;padding:24px;background:#0d111b}.media-box video{display:block;width:100%;max-height:620px;background:#05070b;object-fit:contain}.image-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;width:100%}.image-grid img{width:100%;height:360px;background:#080b12;object-fit:contain}.result-info{display:flex;align-items:center;justify-content:space-between;gap:28px;padding:24px}.video-copy{min-width:0}.video-copy h2{margin:0;overflow:hidden;color:var(--ink);font-size:20px;font-weight:750;letter-spacing:-.02em;line-height:1.45;text-overflow:ellipsis;white-space:nowrap}.video-copy p{margin:7px 0 0;color:var(--muted);font-size:13px}.result-actions{display:flex;flex:0 0 auto;gap:10px}.action{display:inline-flex;align-items:center;justify-content:center;min-width:112px;min-height:44px;padding:0 18px;border-radius:10px;cursor:pointer;font-size:13px;font-weight:750;text-decoration:none}.action--primary{color:#fff;background:var(--blue);border:1px solid var(--blue)}.action--primary:hover{background:var(--blue-dark);border-color:var(--blue-dark)}.action--secondary{color:var(--blue);background:var(--blue-soft);border:1px solid #d9e5ff}.action--secondary:hover{background:#e1ebff}.action:disabled{cursor:wait;opacity:.6}.download-error{padding:0 24px 20px}.usage-tip{margin:26px 0 0;color:#9299a6;font-size:12px;text-align:center}.blind-main{width:min(1040px,calc(100% - 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