:root{color-scheme:light;--ink:#182639;--muted:#697386;--line:#e3e8ee;--blue:#315ddc;--blue-soft:#edf2ff;--green:#168269;--surface:#fff;--bg:#f7f9fc;font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-synthesis:none}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-size:15px;line-height:1.7}a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}button,input{font:inherit}button,a,input{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:wait;opacity:.65}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #90aaff;outline-offset:4px}[hidden]{display:none!important}.wrap{width:min(1080px,calc(100% - 48px));margin:auto}.site-header{background:#ffffffd9;border-bottom:1px solid var(--line)}.header-inner{height:80px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-size:21px;font-weight:750;letter-spacing:-.7px}.brand:hover{text-decoration:none}.brand-mark{width:34px;height:34px;background:var(--blue);color:#fff;display:grid;place-items:center;border-radius:11px;font-size:23px;font-weight:650}.brand .domain{font-weight:400;color:var(--muted)}.header-nav{display:flex;align-items:center;gap:25px;font-size:14px}.header-nav a{color:var(--muted)}.header-nav a[aria-current=page]{color:var(--blue);font-weight:600}.skip-link{position:absolute;left:12px;top:-60px;background:white;padding:8px;z-index:10}.skip-link:focus{top:10px}
.hero{padding:76px 0 55px;max-width:750px}.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:12px;letter-spacing:2px;font-weight:600;color:var(--blue)}.eyebrow:before{content:"";width:7px;height:7px;border-radius:50%;background:#5d81ed}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(32px,5vw,48px);line-height:1.3;letter-spacing:-1.5px;font-weight:750;margin:19px 0 20px}.hero h1 span{color:var(--blue)}.hero p{max-width:620px;font-size:17px;color:var(--muted);line-height:1.9;margin-bottom:22px}.hero-notes{display:flex;gap:22px;color:#6c788b;font-size:13px}.hero-notes span:before{content:"✓";color:var(--green);margin-right:7px}.section-top{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:20px}.section-top h2{font-size:20px;margin:0}.section-top span{font-size:13px;color:var(--muted)}.tool-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.tool-card{position:relative;padding:29px 30px 24px;background:white;border:1px solid var(--line);border-radius:17px;display:flex;flex-direction:column;transition:transform .18s,border-color .18s,box-shadow .18s}.tool-card.live:hover{transform:translateY(-3px);border-color:#c5d2f8;box-shadow:0 12px 30px #263b6d08}.card-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:23px}.tool-icon{width:48px;height:48px;border-radius:13px;background:var(--blue-soft);color:var(--blue);display:grid;place-items:center}.tool-icon svg{width:25px;height:25px}.green .tool-icon{background:#e8f6ef;color:var(--green)}.purple .tool-icon{background:#f1edfa;color:#8b70ba}.orange .tool-icon{background:#fbf0e5;color:#c38f56}.status-pill{font-size:11px;background:#f0f6f3;color:#4e7b66;padding:3px 10px;border-radius:20px}.soon .status-pill{background:#f1f3f6;color:#8a929f}.tool-card h3{font-size:20px;line-height:1.4;margin-bottom:10px}.tool-card p{font-size:14px;color:var(--muted);max-width:390px;line-height:1.85;margin-bottom:26px}.card-bottom{border-top:1px solid #eff2f6;padding-top:17px;display:flex;justify-content:space-between;align-items:center;margin-top:auto;font-size:13px}.card-bottom>span{color:#8992a0;font-size:12px}.card-bottom a{font-weight:600}.card-bottom a:after{content:" →";margin-left:6px}.soon{background:#fcfdfe}.soon h3{color:#657084}.tool-card.soon p{color:#8a929f}.small-note{display:flex;gap:18px;align-items:center;margin:32px 0 65px;padding:22px 26px;border:1px dashed #dce2eb;border-radius:12px;color:var(--muted);font-size:13px}.small-note strong{white-space:nowrap;color:#49576c;font-weight:600}
.site-footer{border-top:1px solid var(--line);margin-top:60px}.footer-inner{padding:27px 0 30px;display:flex;justify-content:space-between;gap:20px;font-size:12px;color:#8390a0}.footer-inner p{margin:5px 0 0}.footer-links{display:flex;gap:23px;align-items:flex-start;padding-top:3px}.footer-links a{color:var(--muted)}.breadcrumb{margin:30px 0 25px;font-size:13px;color:#939eac;display:flex;gap:12px}.breadcrumb a{color:var(--muted)}.page-heading{margin-bottom:26px}.page-heading h1{font-size:34px;letter-spacing:-.8px;margin:14px 0 10px}.page-heading p{color:var(--muted);font-size:15px;margin-bottom:0}.heading-label{display:flex;align-items:center;gap:11px;font-size:12px;color:var(--muted)}.heading-label .tool-icon{width:34px;height:34px;border-radius:10px}.heading-label svg{width:19px;height:19px}.panel{border:1px solid var(--line);background:#fff;border-radius:16px;padding:28px}.input-panel{margin-bottom:20px}label{display:block;font-size:14px;font-weight:600;margin-bottom:10px}.input-row{display:flex;gap:12px}input[type=url]{width:100%;min-width:0;border:1px solid #d8e0eb;border-radius:9px;padding:12px 15px;color:var(--ink);background:#fcfdff;font-size:14px}input::placeholder{color:#98a1ae}.button{display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:11px 21px;border:1px solid transparent;border-radius:9px;background:var(--blue);color:#fff;font-weight:600;font-size:14px;white-space:nowrap;transition:background .15s}.button:hover{background:#244cc3;text-decoration:none}.button.secondary{background:white;border-color:#dce3ed;color:#46566e}.button.secondary:hover{background:#f5f7fb}.hint{font-size:12px;color:#8590a0;margin:11px 0 0}.notice{padding:15px 18px;border-radius:10px;background:#edf3fd;color:#506989;font-size:13px;margin:18px 0;line-height:1.8}.notice strong{font-weight:600}.form-status{margin:15px 0 0;font-size:14px;color:#536b97}.form-status.error{color:#b13535;background:#fff1f0;border-radius:8px;padding:10px 13px}.form-status.success{color:var(--green)}.empty-state{text-align:center;padding:44px 24px}.empty-state .tool-icon{margin:0 auto 17px;background:#f0f3f8;color:#9aa9bd}.empty-state h2{font-size:16px;color:#64738a;margin-bottom:6px}.empty-state p{font-size:13px;color:#8a95a5;margin:0}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:25px}.step{display:flex;gap:11px;font-size:12px;color:var(--muted)}.step-number{flex-shrink:0;border:1px solid #dfe6f0;width:23px;height:23px;border-radius:50%;display:grid;place-items:center;font-size:11px;color:#71829a}.step strong{display:block;color:#526279;font-size:13px;margin-bottom:3px;font-weight:600}.video-summary{display:flex;gap:23px;align-items:center;margin-bottom:25px}.cover{width:230px;aspect-ratio:16/9;object-fit:cover;border-radius:10px;background:#edf1f6}.video-info{min-width:0}.video-info h2{font-size:21px;line-height:1.5;overflow-wrap:anywhere;margin-bottom:10px}.meta{display:flex;flex-wrap:wrap;gap:8px 18px;font-size:13px;color:var(--muted);margin-bottom:8px}.text-link{font-size:13px}.result-heading{display:flex;justify-content:space-between;align-items:center;gap:15px;margin:5px 0 15px}.result-heading h2{font-size:18px;margin:0}.table-scroll{width:100%;overflow-x:auto;border:1px solid var(--line);border-radius:10px}table{width:100%;border-collapse:collapse;font-size:13px;white-space:nowrap;text-align:left}th{background:#f6f8fc;font-weight:500;color:#7c8798}th,td{padding:12px 15px;border-bottom:1px solid #edf0f5}tr:last-child td{border-bottom:0}tr.best{background:#f1f7ff}.format-badge{display:inline-block;margin-left:7px;padding:1px 6px;background:#e0ecff;color:#3b67be;border-radius:4px;font-size:10px}.subtle{color:var(--muted);font-size:12px}.no-formats{color:var(--muted);font-size:14px}.article-toolbar{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-bottom:20px}.article-toolbar .subtle{margin-right:auto}.article-head{border-bottom:1px solid var(--line);padding-bottom:20px;margin-bottom:26px}.article-head h2{font-size:27px;line-height:1.5;margin-bottom:12px;overflow-wrap:anywhere}.article-preview{max-width:760px;margin:0 auto;color:#354358;font-size:16px;line-height:1.9;overflow-wrap:anywhere}.article-preview img{max-width:100%;height:auto;display:block;margin:16px auto;border-radius:4px}.article-preview p{margin-bottom:1em}.article-preview h1,.article-preview h2,.article-preview h3{line-height:1.5;letter-spacing:0}.article-preview h1{font-size:30px}.article-preview h2{font-size:25px}.article-preview h3{font-size:21px}.article-preview pre{overflow-x:auto;background:#f3f5f8;border-radius:8px;padding:15px;white-space:pre-wrap}.article-preview blockquote{border-left:3px solid #a7bdeb;margin:20px 0;padding:5px 20px;color:#6f7b8f;background:#f6f8fd}.article-preview table{display:block;overflow-x:auto;white-space:normal}.article-preview a{overflow-wrap:anywhere}.article-preview figure{margin:15px 0}.article-preview hr{border:0;border-top:1px solid var(--line);margin:24px 0}.markdown-fallback{width:100%;min-height:180px;font:13px/1.7 monospace;padding:14px;border:1px solid var(--line);border-radius:8px}.legal{max-width:780px;margin:45px auto 65px}.legal h1{font-size:34px;letter-spacing:-.6px}.legal h2{font-size:19px;margin:30px 0 12px}.legal p,.legal li{color:#627084}.legal ul{padding-left:24px}.legal .updated{font-size:12px;color:#8c97a6;margin-bottom:30px}.noscript{padding:20px;background:#fff5df;color:#816122}.loading-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:currentColor;margin-right:6px;animation:pulse 1s ease-in-out infinite}@keyframes pulse{50%{opacity:.3}}
@media(max-width:700px){.wrap{width:calc(100% - 32px)}.header-inner{height:68px}.brand{font-size:19px}.header-nav{gap:14px;font-size:12px}.header-nav .desktop-nav{display:none}.hero{padding:47px 0 36px}.hero p{font-size:15px}.hero h1{letter-spacing:-1px}.hero-notes{gap:15px;font-size:12px}.tool-grid{grid-template-columns:1fr;gap:15px}.tool-card{padding:24px}.card-top{margin-bottom:19px}.tool-card p{margin-bottom:22px}.small-note{display:block;padding:18px 20px;margin-bottom:40px}.small-note strong{display:block;margin-bottom:5px}.footer-inner{flex-direction:column;gap:12px;padding-top:23px}.site-footer{margin-top:40px}.breadcrumb{margin-top:23px;margin-bottom:22px}.page-heading h1{font-size:29px}.page-heading p{font-size:14px}.panel{padding:20px;border-radius:13px}.input-row{flex-direction:column;gap:10px}input[type=url]{font-size:16px}.button{padding:11px 18px}.steps{grid-template-columns:1fr;gap:15px;margin-bottom:30px}.video-summary{flex-direction:column;align-items:stretch;gap:16px}.cover{width:100%;max-height:260px}.video-info h2{font-size:19px}.article-head h2{font-size:23px}.article-preview{font-size:15px}.article-toolbar .subtle{width:100%;margin-bottom:2px}.article-toolbar .button{flex:1}.legal{margin-top:30px}.section-top h2{font-size:18px}}
#result:focus{outline:2px solid #b7c8f3;outline-offset:4px}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}