:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Arial,sans-serif;color:#17233b;background:#f4f7fb}*{box-sizing:border-box}body{margin:0}.site-head{background:#fff;border-bottom:1px solid #e4e9f2}.head-inner{max-width:1600px;margin:auto;display:flex;align-items:center;gap:22px;padding:16px 25px}.brand{color:#2456cf;text-decoration:none;font-size:21px;letter-spacing:-.8px}.head-label{font-weight:650;color:#53617c;border-left:1px solid #d9e1ee;padding-left:20px}.beta{font-size:10px;background:#e7edff;color:#3456b5;padding:4px 6px;border-radius:5px;vertical-align:middle}.head-link{margin-left:auto;color:#52617b;text-decoration:none;font-size:13px}main{max-width:1600px;margin:auto;padding:32px 24px}.intro{text-align:center;margin:8px auto 30px}.eyebrow{font-size:11px;font-weight:800;letter-spacing:2.2px;color:#4770c8}.intro h1{font-size:clamp(30px,3.5vw,47px);letter-spacing:-1.9px;margin:9px 0}.intro p{color:#66738c;margin:0;font-size:15px}.workspace{display:grid;grid-template-columns:minmax(270px,320px) minmax(430px,1fr) 310px;gap:18px;align-items:start}.panel{background:white;border:1px solid #e0e7f1;border-radius:16px;box-shadow:0 4px 20px #213a6a08;padding:21px;min-width:0}.panel-head{display:flex;gap:12px;align-items:center;margin-bottom:22px}.step{display:grid;place-items:center;background:#eaf0ff;color:#2f59bc;border-radius:10px;font-weight:800;font-size:13px;width:36px;height:36px;flex-shrink:0}.panel-head h2{font-size:17px;letter-spacing:-.4px;margin:0 0 3px}.panel-head p{font-size:12px;color:#8390a5;margin:0}.upload{border:1.5px dashed #9db5e7;border-radius:13px;background:#f7faff;display:flex;align-items:center;justify-content:center;gap:8px;flex-direction:column;text-align:center;padding:22px 10px;cursor:pointer}.upload.drag{background:#e8f0ff;border-color:#3165d7}.upload-icon{font-size:26px;color:#3664d0}.upload strong{font-size:14px}.upload span:last-child{font-size:11px;color:#8290a7}.notice{font-size:12px;margin-top:9px;color:#b25816;min-height:0}.notice:empty{display:none}.field{margin-top:22px}.field>label{font-weight:700;display:block;font-size:13px;margin-bottom:9px}input:not([type=file]),select{width:100%;border:1px solid #dbe3ef;background:#fff;padding:12px;border-radius:9px;font:inherit;font-size:13px;color:#28364c}input:focus,select:focus,button:focus-visible,summary:focus-visible{outline:2px solid #5583e8;outline-offset:2px}.mode-switch{display:flex;background:#eef2f8;padding:4px;border-radius:10px}.mode-switch button{flex:1;border:0;border-radius:8px;padding:11px 5px;background:transparent;font-size:12px;color:#64718a;font-weight:700;cursor:pointer}.mode-switch button.selected{background:white;color:#2456c5;box-shadow:0 1px 5px #1b376526}.helper{font-size:11px;color:#8895aa;line-height:1.55;margin:8px 0 0}.colors-heading{display:flex;align-items:center;justify-content:space-between;margin:26px 0 9px}.colors-heading h3{margin:0;font-size:14px}.link-btn{border:0;background:transparent;color:#3865ca;cursor:pointer;font-size:11px;font-weight:700}.color-controls{display:flex;flex-direction:column;gap:9px}.color-row{display:flex;align-items:center;justify-content:space-between;gap:8px;border:1px solid #edf0f5;padding:7px 9px;border-radius:9px}.color-row label{font-size:12px;color:#46546c}.color-right{display:flex;gap:7px;align-items:center}.color-code{font-size:10px;color:#8894a6;font-family:monospace}.color-input{width:31px;height:29px;padding:0;border:0;background:transparent;cursor:pointer}.advanced,.install{border-top:1px solid #e8edf4;margin-top:19px;padding-top:16px}.advanced summary,.install summary{cursor:pointer;font-size:12px;font-weight:750;color:#4b5a75}.advanced .color-controls{margin-top:13px}.preview-panel{padding:21px}.preview-tools{font-size:11px;color:#66748b;display:flex;align-items:center;gap:7px;margin-bottom:16px}.live-dot{width:7px;height:7px;background:#2ac17c;border-radius:50%}.preview-label{margin-left:auto;color:#a0aaba}.browser{border:1px solid #aab4c6;border-radius:12px;overflow:hidden;box-shadow:0 20px 38px #1d2b471c}.browser-frame{background:#22283b;padding:12px 12px 0}.tabs{display:flex;align-items:end;height:32px;gap:4px}.tab-active,.tab-other{display:flex;align-items:center;gap:9px;padding:9px 12px 8px;border-radius:11px 11px 0 0;font-size:11px;max-width:185px;min-width:0;white-space:nowrap}.tab-active{background:#fff;color:#24304a;flex:1}.tab-other{color:#e1e5f2;flex:1}.tab-favicon{color:#5e7dcd}.tab-x{margin-left:auto}.tab-plus{color:white;font-size:17px;padding:0 8px 8px}.window-actions{font-size:11px;color:#fff;margin-left:auto;padding-bottom:11px;white-space:nowrap}.browser-toolbar{background:#fff;padding:11px 13px;display:flex;align-items:center;gap:12px}.nav-icons{white-space:nowrap;color:#5a6475;font-size:15px}.address{background:#f0f2f7;border-radius:22px;flex:1;padding:9px 15px;color:#8791a4;font-size:11px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.address span{margin-right:7px}.bookmark-row{height:28px;background:#fff;padding:6px 14px;color:#5e6878;font-size:10px}.new-tab{height:clamp(250px,29vw,440px);background:#151e31 center center/cover no-repeat;display:flex;align-items:flex-start;justify-content:center}.search-wrap{display:flex;flex-direction:column;align-items:center;margin-top:11%;width:70%;max-width:390px}.chrome-logo{position:relative;width:65px;height:65px;border-radius:50%;background:conic-gradient(#e9483e 0 120deg,#f6c344 120deg 220deg,#3aa35c 220deg 300deg,#e9483e 300deg);margin-bottom:20px}.chrome-logo .c4{position:absolute;inset:19px;border-radius:50%;background:#3982d4;border:4px solid white}.searchbox{border-radius:25px;background:#fff;box-shadow:0 2px 12px #0002;width:100%;padding:13px 17px;color:#8791a4;font-size:11px;display:flex;gap:13px}.searchbox span:last-child{margin-left:auto}.preview-footer{display:flex;justify-content:space-between;gap:8px;color:#8996aa;font-size:11px;margin-top:15px}.tip{background:#f5f8ff;border:1px solid #e4ebfb;border-radius:11px;padding:16px;margin-top:24px}.tip strong{font-size:12px;color:#3e5d9a}.tip p{font-size:12px;color:#697a99;line-height:1.7;margin:6px 0 0}.ad-container{text-align:center}.ad-label{font-size:9px;color:#a3acba;letter-spacing:1.4px;margin-bottom:8px}.ad-slot{width:300px;height:250px;max-width:100%;margin:auto;background:#f5f7fb;border:1px dashed #dbe2ed;display:flex;align-items:center;justify-content:center;flex-direction:column;color:#a6b0c1}.ad-slot span{font-size:16px;font-weight:750}.ad-slot small{font-size:11px;margin-top:5px}.export-card{text-align:center;margin-top:25px}.ready-icon{background:#e8f0ff;color:#3563ce;font-size:25px;border-radius:12px;width:50px;height:50px;display:grid;place-items:center;margin:0 auto 11px}.export-card h3{font-size:16px;margin:0 0 8px}.export-card p{font-size:12px;color:#79869d;line-height:1.65;margin:0 0 17px}.primary-btn{background:#315fce;border:0;color:#fff;border-radius:10px;width:100%;padding:14px;font-weight:800;cursor:pointer;font-size:13px}.primary-btn:hover:not(:disabled){background:#214cae}.primary-btn:disabled{background:#b4c2df;cursor:not-allowed}.export-card .export-note{font-size:10px;margin-top:10px}.install ol{font-size:11px;color:#62728c;line-height:1.8;padding-left:18px}.install p{font-size:11px;color:#7b8698;line-height:1.6}.privacy{border-top:1px solid #edf0f5;margin-top:20px;padding-top:15px;font-size:11px;color:#8490a4;line-height:1.6}footer{text-align:center;color:#9ba5b4;font-size:12px;padding:35px}footer a{color:#6480bd}@media(max-width:1200px){.workspace{grid-template-columns:minmax(260px,320px) minmax(400px,1fr)}.export-panel{grid-column:1/-1;display:grid;grid-template-columns:1fr 1fr;column-gap:25px}.export-panel .panel-head{grid-column:1/-1}.export-panel .ad-container{grid-row:2/5}.export-card{margin-top:0}.privacy{margin-top:10px}}@media(max-width:780px){main{padding:20px 12px}.workspace{grid-template-columns:1fr}.export-panel{display:block}.export-card{margin-top:20px}.head-inner{padding:12px}.head-link{display:none}.panel{padding:16px}.new-tab{height:300px}.tab-other{display:none}.preview-label{display:none}.intro{margin-bottom:22px}.intro h1{letter-spacing:-1px}.window-actions{display:none}}

/* ChromeThemer-inspired visual refresh, V3. Presentation only; app.js unchanged. */
:root{color:#202a3a;background:#f2f4f8}
.site-head{background:#121c32;border-bottom:3px solid #3376ef;box-shadow:0 4px 16px #111d341c}
.head-inner{padding-top:19px;padding-bottom:19px}
.brand{color:#fff;font-weight:800;letter-spacing:-.7px}
.head-label{color:#dce7fa;border-left-color:#45546e;font-weight:750}
.beta{display:inline-block;background:#1d4684;color:#dceeff;border:1px solid #4479c2;border-radius:20px;padding:6px 11px;font-size:11px;letter-spacing:.1px;margin-left:5px}
.head-link{color:#d5e5ff;font-weight:650}
.head-link:hover{color:#fff}
main{padding-top:36px}
.intro{margin-bottom:34px}
.eyebrow{color:#2864cc;font-weight:900;letter-spacing:2px}
.intro h1{color:#16233d;font-weight:850;letter-spacing:-1.7px}
.intro p{color:#5a6a83;line-height:1.65}
.panel{border:1px solid #dce3ee;border-radius:13px;box-shadow:0 5px 22px #172d520b}
.panel-head{padding-bottom:17px;border-bottom:1px solid #edf1f7;margin-bottom:20px}
.step{background:#1c56bc;color:#fff;border-radius:9px}
.panel-head h2{color:#182b4d;font-weight:800}
.upload{background:#f2f7ff;border-color:#77a5ef;border-radius:12px}
.upload:hover{background:#e9f2ff;border-color:#2363c6}
.upload-icon{color:#1b5fc9}
.mode-switch{background:#e9eff8}
.mode-switch button.selected{color:#1655b6}
.color-row{border-color:#e4eaf3}
.color-row:hover{background:#f8faff}
.color-input{border-radius:6px}
.browser{border-color:#a7b4ca}
.tip{background:#f0f6ff;border-color:#d8e6fb}
.tip strong{color:#1f56a6}
.ad-slot{background:#f7f9fc}
.export-card{padding:17px 12px 8px;border-radius:12px;background:#f7faff;border:1px solid #e0eaf9}
.ready-icon{background:#dceaff;color:#205dbb}
.primary-btn{background:#2165d3;box-shadow:0 4px 12px #2564c53b}
.primary-btn:hover:not(:disabled){background:#154da9}
.primary-btn:disabled{box-shadow:none}
@media(max-width:780px){.head-label{font-size:12px;padding-left:10px}.beta{margin-top:4px;font-size:10px}.brand{font-size:17px}.head-inner{gap:10px}}