*{box-sizing:border-box}body{margin:0;color:#090e17;background:#fff;font-family:Arial,Microsoft YaHei,sans-serif;font-size:14px;line-height:1.5}button,input{font:inherit}button,a{-webkit-tap-highlight-color:transparent}a{color:#367cff;text-decoration:none}button{cursor:pointer}button:disabled{cursor:wait;opacity:.6}button:focus-visible,a:focus-visible{outline:2px solid #134dba;outline-offset:4px}h1,h2,h3,p{margin:0}h2{font-size:16px;font-weight:400}h3{font-size:14px;font-weight:400}.container{width:100%;max-width:1280px;margin:auto;padding:0 32px}header{height:54px;background:#209bfa;border-bottom:1px solid #dfdfdf}.header-inner{height:54px;display:flex;align-items:center;gap:12px}.brand{display:flex;align-items:center;gap:12px;color:#fff;flex-shrink:0}.brand h1{font-size:20px;font-weight:400}.brand img{display:block}nav{display:flex;height:54px;align-items:stretch}nav button{padding:0 16px;border:0;background:transparent;color:#fff;font-size:14px}nav button:hover{background:#ffffff20}.intro{margin-top:16px;margin-bottom:12px;line-height:21px;color:#303846}.instructions h2{margin-bottom:10px}.instructions ol{padding-left:24px;margin:0;line-height:24px}form{display:flex;gap:8px;max-width:1024px;margin:30px auto 0}.input-wrap{position:relative;flex:1;min-width:0}input{width:100%;height:40px;border:1px solid #7695b7;border-radius:6px;padding:8px 46px 8px 12px;font-size:16px;background:#fff;color:#172b43}input::placeholder{color:#6a7d90}input:focus{outline:2px solid #209bfa33;border-color:#209bfa}.paste{position:absolute;right:6px;top:5px;width:30px;height:30px;display:flex;align-items:center;justify-content:center;border:0;background:transparent;border-radius:4px;color:#222}.paste:hover{background:#edf4ff}.primary{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:40px;padding:0 16px;white-space:nowrap;border:0;border-radius:6px;color:#fff;background:#209bfa;font-size:16px}.primary:hover{background:#128ae5}.status{max-width:1024px;margin:12px auto 0;padding:12px 16px;background:#eff6ff;border:1px solid #caddf5;border-radius:6px;color:#315679;display:flex;align-items:center;justify-content:space-between;gap:12px}.status button{border:0;background:none;display:flex;color:inherit}.ads{margin-top:24px}.ad-links{display:flex;justify-content:center;gap:8px;align-items:center;margin-bottom:8px;font-weight:700}.ad-links a{text-decoration:underline}.ad-links a:nth-child(2){color:red}.ad-links small{font-size:11px;color:#367cff;border:1px solid #367cff;border-radius:2px;font-weight:400;line-height:15px;padding:0 2px}.banners{display:flex;justify-content:center;gap:4px}.banners img{display:block;object-fit:cover;max-width:100%;height:60px}.desktop-ad{position:relative;display:flex;gap:22px;align-items:flex-start;max-width:616px;height:82px;margin:8px auto 0;background:#80b1fc;color:#fff;padding:8px}.desktop-ad strong{font-size:16px;font-weight:400}.desktop-ad p{font-size:12px;margin-top:4px;line-height:20px;white-space:nowrap}.desktop-ad>a{display:flex;gap:8px;align-items:center;justify-content:center;background:#101e35;color:#fff;white-space:nowrap;padding:10px 14px;border-radius:6px}.desktop-ad small{position:absolute;bottom:1px;right:5px;font-size:12px}.faq{margin-top:16px}.faq>h2{margin-bottom:10px}.faq article+article{margin-top:16px}.faq article h3{margin-bottom:4px;line-height:21px}.faq article p{padding:12px;background:#eff6ff;color:#486383;border-radius:4px;line-height:20px}footer{text-align:center;color:#8590a1;margin-top:32px!important;padding-bottom:24px!important;font-size:12px}footer p+p{margin-top:5px}footer span{margin:0 8px}.view-switch{border:1px solid #dae2ec;color:#59708e;background:#fff;border-radius:5px;padding:6px 12px;margin-top:14px}.coming{min-height:500px;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:20px}.coming h2{font-size:26px}.coming p{color:#75849a}.optimized{background:#f7f9fc;min-height:100vh;color:#1c2b44}.optimized header{background:#fff;height:76px;border-bottom:1px solid #e9edf4}.optimized .header-inner{height:76px;justify-content:space-between}.optimized .brand{color:#172b46}.optimized .brand img{width:40px;height:40px}.optimized .brand h1{font-weight:600;font-size:19px}.optimized nav{height:40px;gap:6px}.optimized nav button{color:#718097;border-radius:7px}.optimized nav button.selected{color:#168df1;background:#edf6ff;font-weight:600}.optimized nav button:hover{background:#edf6ff}.optimized main{max-width:1088px}.hero{text-align:center;padding:54px 0 30px}.eyebrow{font-size:12px;color:#428ed9;letter-spacing:3px}.hero h2{font-size:38px;letter-spacing:-1px;font-weight:700;margin:12px 0}.hero p{font-size:16px;color:#7b889d}.optimized .download-section{padding:30px;background:#fff;border:1px solid #e7ecf4;border-radius:14px;box-shadow:0 8px 24px #24466b05}.optimized .instructions{display:none}.optimized form{margin:0;gap:12px}.optimized input{height:56px;border-color:#dce4f0;padding-left:44px;padding-right:84px;font-size:14px;background:#fbfcff;border-radius:8px}.optimized .link-icon{position:absolute;left:15px;top:18px;color:#92a2b7}.optimized .paste{width:70px;top:13px;gap:5px;font-size:13px;color:#71849d}.optimized .paste svg{width:16px}.optimized .primary{height:56px;padding:0 28px;border-radius:8px;background:#218ff2}.support{display:flex;gap:25px;align-items:center;margin-top:18px;color:#8a99ad;font-size:12px}.support span{display:flex;align-items:center;gap:6px}.support svg{color:#3997dc}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin:30px 0 38px}.steps article{position:relative;background:#fff;border:1px solid #e7ecf4;border-radius:12px;padding:23px}.step-icon{color:#2693ef;margin-bottom:18px}.steps small{position:absolute;right:22px;top:18px;font-size:26px;color:#e1e8f2;font-weight:700}.steps h3{font-weight:600;font-size:15px;margin-bottom:8px}.steps p{font-size:13px;line-height:1.8;color:#7f8da2}.optimized .faq{max-width:820px;margin:0 auto}.optimized .faq>h2{font-size:22px;text-align:center;font-weight:600;margin-bottom:22px}.optimized .faq article{border-bottom:1px solid #e2e8f1;margin:0}.optimized .faq article button{display:flex;justify-content:space-between;align-items:center;width:100%;text-align:left;padding:18px 0;background:none;border:0;color:#33465f;font-size:14px;gap:16px}.optimized .faq article button svg{color:#8b9aaf;flex-shrink:0;transition:transform .2s}.rotated{transform:rotate(180deg)}.optimized .faq article p{background:none;padding:0 26px 18px 0;color:#8290a5;line-height:1.8}.optimized footer{margin-top:44px!important}.optimized .view-switch{background:transparent}@media(min-width:1280px){.classic .container{max-width:1280px;transform:translate(3px)}}@media(max-width:767px){.container{padding:0 20px}.header-inner{gap:0;flex-wrap:wrap}header,.header-inner{height:auto;min-height:54px}.brand img{width:40px;height:40px}.brand h1{font-size:17px}.brand{height:54px;gap:9px}nav{height:40px;width:100%;border-top:1px solid #ffffff25}nav button{flex:1;padding:0 10px}.intro{margin-top:18px}form{flex-direction:column;margin-top:24px}.primary{width:100%}.instructions ol{padding-left:21px}.banners{flex-direction:column;align-items:center;gap:8px}.ad-links{flex-wrap:wrap;gap:5px;font-size:12px}.desktop-ad{height:auto;min-height:82px;flex-wrap:wrap;gap:8px;padding:12px}.desktop-ad p{white-space:normal}.desktop-ad>a{padding:7px 10px;font-size:12px}.faq{margin-top:22px}.optimized header,.optimized .header-inner{height:auto}.optimized .brand{height:65px}.optimized nav{padding-bottom:7px;height:44px}.hero{padding:36px 0 24px}.hero h2{font-size:27px;letter-spacing:-.5px}.hero p{font-size:13px}.optimized .download-section{padding:18px}.optimized input{font-size:13px}.optimized .primary{height:48px}.support{gap:12px;flex-wrap:wrap;font-size:11px}.steps{grid-template-columns:1fr;gap:12px;margin:20px 0 30px}.steps article{padding:18px 20px 18px 60px}.step-icon{position:absolute;left:21px;top:21px}.steps small{font-size:21px;top:13px;right:16px}.steps h3{margin-bottom:5px}.steps p{padding-right:12px}.coming{min-height:420px;text-align:center}}body{font-family:ui-sans-serif,system-ui,sans-serif,"Apple Color Emoji","Segoe UI Emoji",Segoe UI Symbol,"Noto Color Emoji"}html{scrollbar-width:none}html::-webkit-scrollbar{display:none}.classic form{margin-top:28px}.desktop-ad{background:linear-gradient(100deg,#3b7dff,#bed9ff);gap:16px}.desktop-ad>a{padding:10px 14px;min-width:200px}.optimized .hero p,.optimized .steps p,.optimized .faq article p{color:#63758e}@media(max-width:767px){.classic form{margin-top:24px}.desktop-ad>a{min-width:0}.desktop-ad{background:#80b1fc}}@media(max-width:767px){.banners img{height:auto;width:100%}}.ad-slot{height:179px;pointer-events:none}@media(max-width:767px){nav button{white-space:nowrap;padding:0 6px;font-size:13px}}.video-result{max-width:1024px;margin:20px auto 0;border:1px solid #dbe7f6;border-radius:6px;padding:16px;display:flex;gap:18px}.video-result>img{width:220px;height:124px;object-fit:cover;border-radius:4px}.video-result>div{min-width:0}.video-result h2{font-weight:600;overflow-wrap:anywhere}.video-result p{color:#64758c;margin-top:8px;font-size:13px}.download-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:14px}.download-actions select{padding:7px;border:1px solid #bbcce0;border-radius:4px;font:inherit;background:#fff}.download-actions .primary{font-size:14px}@media(max-width:767px){.video-result{flex-direction:column}.video-result>img{width:100%;height:auto;max-height:220px;object-fit:contain}.download-actions .primary{width:auto}}@media(max-width:767px){nav{overflow-x:auto}nav button{flex:1 0 auto}}
