:root{--blue:#2563eb;--ink:#1e293b;--line:#e3e8f0}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:20px}body{margin:0;background:#f7f9fc;color:var(--ink);font:14px "Microsoft YaHei",sans-serif}a{color:var(--blue);text-decoration:none}button,input,select{font:inherit}button{cursor:pointer}header,main,footer{max-width:1140px;margin:auto;padding-left:24px;padding-right:24px}header{height:76px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{font-size:23px;font-weight:700;color:#1e293b}.brand small{font-size:12px;font-weight:400;color:#8190a4;margin-left:10px}.netdisk{font-size:12px}.intro{padding:32px 0 20px}.intro h1{font-size:28px;letter-spacing:-1px;margin:0 0 9px}.intro p{font-size:12px;color:#8390a3;margin:0}.tabs{display:flex;gap:7px;border-bottom:1px solid var(--line);padding-bottom:14px;margin-bottom:25px}.tabs button{border:0;background:none;padding:11px 20px;border-radius:7px;color:#6c7c92;font-size:13px}.tabs button.active{background:var(--blue);color:white}[hidden]{display:none!important}.section-top{display:flex;align-items:center;justify-content:space-between;margin:0 0 18px}.section-top h2{font-size:18px;margin:0}.eyebrow{display:none}.section-top>div>h2>span{display:none}.section-top p{font-size:11px;color:#8190a3}.section-top>span{font-size:11px;color:#8190a3}.search{display:block;margin-bottom:15px}.search input{width:100%;background:white;border:1px solid #d9e2ee;border-radius:7px;padding:12px;font-size:12px;outline-color:var(--blue)}#filters{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:20px}#filters button{font-size:11px;border:1px solid var(--line);padding:8px 12px;background:white;color:#65758b;border-radius:6px}#filters button.active{color:var(--blue);background:#edf3ff;border-color:#cadbff}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.card{background:white;border:1px solid var(--line);border-radius:9px;padding:20px;display:flex;flex-direction:column}.card-top{display:flex;justify-content:space-between;align-items:center}.icon{color:var(--blue);font-size:20px}.badge{font-size:9px;background:#edf3ff;color:#5b78a4;padding:4px 7px;border-radius:4px}.card h3{font-size:15px;margin:13px 0 10px}.card p{font-size:11px;line-height:1.8;color:#7b899d;margin:0 0 16px}.card-bottom{display:flex;gap:6px;align-items:center;margin-top:auto;padding-top:12px;border-top:1px solid #eef1f6}.device{font-size:9px;color:#8390a3}.resource-link{margin-left:auto;font-size:11px;font-weight:600}.copy{border:0;background:none;font-size:10px;color:#8591a3;padding:3px}.guide{margin-top:30px;padding-top:25px;border-top:1px solid var(--line)}.guide-layout{display:block}.guide aside{display:none}.guide-details{background:white;border:1px solid var(--line);border-radius:9px;padding:0 20px}details{padding:18px 0;border-bottom:1px solid var(--line)}details:last-child{border:0}summary{cursor:pointer;display:flex;align-items:center;gap:11px;font-size:13px;font-weight:600;list-style:none}summary>span{color:#93a3bb;font-size:10px}summary>b{background:#edf3ff;color:#6f87ac;font-size:10px;padding:4px 7px;font-weight:400}summary:after{content:'+';margin-left:auto;color:#7b92b4}details[open] summary:after{content:'−'}details ol{font-size:12px;color:#64748b;line-height:2.2;padding-left:30px}details>p{font-size:11px;color:#7b899d;line-height:1.9}.text-link{font-size:11px}.guide-tabs{display:flex;gap:8px;margin-top:15px}.guide-tabs button{font-size:11px;border:1px solid var(--line);border-radius:5px;padding:7px 12px;background:white;color:#64748b}.guide-tabs button.active{color:var(--blue);background:#edf3ff}.note{background:#f5f8fc;padding:10px;border-radius:5px}footer{display:flex;justify-content:space-between;gap:20px;color:#8b98aa;font-size:10px;border-top:1px solid var(--line);padding-top:22px;padding-bottom:25px;margin-top:40px}#toast{display:none;position:fixed;bottom:25px;left:50%;transform:translateX(-50%);background:#1e3a5f;color:white;padding:12px 20px;border-radius:7px;font-size:12px}#empty{padding:35px;text-align:center;color:#8190a3}button:focus-visible,a:focus-visible{outline:2px solid var(--blue);outline-offset:3px}#rom.rom-catalog{margin-top:0}#rom .grid{grid-template-columns:repeat(4,1fr)}#rom .release{padding:16px}#rom .release h2{font-size:16px}#rom .compact-meta{flex-wrap:wrap}#rom .firmware-info dl{grid-template-columns:50px 1fr}#rom .actions{flex-direction:row}#rom .simple-tools{margin:0}@media(max-width:1000px){#rom .grid{grid-template-columns:repeat(3,1fr)}}@media(max-width:760px){header,main,footer{padding-left:18px;padding-right:18px}.cards,#rom .grid{grid-template-columns:repeat(2,1fr)}footer{flex-direction:column;gap:8px}}@media(max-width:520px){.cards,#rom .grid{grid-template-columns:1fr}.intro{padding-top:25px}.intro h1{font-size:23px}.tabs button{padding:10px 15px;font-size:12px}header{height:66px}.brand{font-size:20px}summary{font-size:12px}.guide-details{padding:0 15px}}
/* Prominent primary navigation */
.tabs{gap:12px;padding:8px 0 20px}.tabs button{flex:1;min-height:62px;font-size:18px;font-weight:700;background:#fff;border:1px solid #d4e2f8;border-radius:10px;color:#315788;box-shadow:0 3px 9px #2563eb08}.tabs button:hover{background:#edf4ff;border-color:#8db5ff}.tabs button.active{background:#2563eb;border-color:#2563eb;color:white;box-shadow:0 5px 15px #2563eb26}.netdisk{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:12px 20px;border-radius:9px;background:#2563eb;color:white;font-size:16px;font-weight:700;box-shadow:0 4px 12px #2563eb20}.netdisk:hover{background:#1d4ed8}@media(max-width:520px){.tabs{gap:8px}.tabs button{font-size:15px;min-height:58px;padding:12px 6px}.netdisk{font-size:14px;min-height:42px;padding:10px 13px}header{height:76px}}

#resources>#guide{margin-top:0;padding-top:0;border-top:0;margin-bottom:30px}