@charset "UTF-8";
:root{--bg:#0e1117;--deep:#080a0e;--panel:#161b24;--panel-2:#1b2230;--line:#293140;--line-soft:#202734;--text:#f1f5f9;--muted:#94a3b8;--accent:#f25c36;--cyan:#38bdf8;--radius:10px;--content:1240px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,"Microsoft YaHei",sans-serif;font-size:15px;line-height:1.65}a{color:inherit;text-decoration:none}a:hover{color:#fff}button,input{font:inherit}.container{width:min(var(--content),calc(100% - 48px));margin-inline:auto}.skip-link{position:absolute;left:12px;top:-60px;z-index:99;padding:10px 14px;background:#fff;color:#111;border-radius:6px}.skip-link:focus{top:12px}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.site-header{height:74px;background:rgba(8,10,14,.96);border-bottom:1px solid #202631;position:sticky;top:0;z-index:20;backdrop-filter:blur(16px)}.header-inner{height:100%;display:flex;align-items:center;gap:42px}.brand{display:inline-flex;align-items:center;gap:10px;font-size:21px;font-weight:800;letter-spacing:.02em;white-space:nowrap}.brand img{width:34px;height:34px;object-fit:contain;border-radius:8px}.main-nav{display:flex;align-items:center;gap:28px;height:100%;margin-right:auto}.main-nav a{height:100%;display:flex;align-items:center;color:var(--muted);font-size:14px;position:relative}.main-nav a:hover,.main-nav a.is-active{color:var(--text)}.main-nav a.is-active:after{content:"";position:absolute;bottom:0;left:0;right:0;height:2px;background:var(--accent)}.header-download{font-size:13px;color:var(--cyan);border:1px solid #24465a;border-radius:6px;padding:8px 13px}.header-download span{margin-left:8px}.hero-index{padding-top:38px;display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:end;column-gap:24px}.eyebrow{font-size:12px;color:var(--cyan);letter-spacing:.08em;margin:0 0 8px;font-weight:700}.eyebrow-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--accent);margin-right:8px;vertical-align:1px}.hero-copy h1,.download-hero h1{font-size:clamp(28px,3.2vw,40px);line-height:1.2;letter-spacing:-.04em;margin:0 0 12px;font-weight:800}.hero-description{color:var(--muted);margin:0;max-width:690px}.hero-device-link{display:flex;align-items:center;gap:12px;padding:12px 16px;background:#121d27;border:1px solid #244154;border-radius:8px;min-width:218px}.device-icon{width:36px;height:36px;border-radius:7px;background:#16384a;color:var(--cyan);display:grid;place-items:center;font-size:20px}.hero-device-link strong,.hero-device-link small{display:block}.hero-device-link strong{font-size:13px}.hero-device-link small{font-size:11px;color:var(--muted)}.hero-device-link b{margin-left:auto;color:var(--cyan);font-size:20px}.search-form{grid-column:1/-1;margin-top:26px;display:flex;align-items:center;gap:12px;background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:7px 8px 7px 16px;max-width:720px}.search-symbol{font-size:25px;color:var(--cyan);line-height:1}.search-form input{min-width:0;flex:1;background:transparent;border:0;outline:0;color:var(--text);padding:8px 0}.search-form input::placeholder{color:#718096}.search-form:focus-within{border-color:var(--cyan);box-shadow:0 0 0 3px #38bdf81a}.search-form button{border:0;border-radius:6px;background:var(--accent);color:#fff;font-weight:700;padding:9px 19px;cursor:pointer}.search-form button:hover,.button-primary:hover{background:#ff704b}.category-nav{grid-column:1/-1;display:flex;gap:8px;margin-top:16px;flex-wrap:wrap}.category-chip{padding:6px 17px;background:#1a2230;border:1px solid #293447;border-radius:5px;color:#b6c2d1;font-size:13px;transition:.18s}.category-chip:hover{border-color:#526176}.category-chip.is-selected{background:#38251f;border-color:#88412d;color:#ff9b7d}.catalog-section{padding-top:34px}.section-heading{display:flex;justify-content:space-between;align-items:end;margin-bottom:18px}.section-heading h2,.type-rail h2,.device-strip h2,.about-section h2,.download-options h2,.install-guide h2,.download-faq h2,.back-to-catalog h2{font-size:23px;line-height:1.3;margin:0;font-weight:800;letter-spacing:-.025em}.section-subtitle{margin:6px 0 0;color:var(--muted);font-size:13px}.result-count{font-size:12px;color:var(--muted);padding-bottom:4px}.poster-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:24px 16px}.media-card{min-width:0}.poster-link{display:block;position:relative;overflow:hidden;border-radius:7px;background:#1b2230;aspect-ratio:2/3;border:1px solid #2a3342}.poster{display:block;width:100%;height:100%;object-fit:cover;transition:transform .35s ease}.poster-link:hover .poster{transform:scale(1.035)}.poster-fallback{display:grid;place-items:center;background:radial-gradient(circle at 70% 20%,#35465a,#171d28 65%)}.poster-fallback span{font-size:54px;font-weight:800;color:#a8b8cb}.poster-badge{position:absolute;left:8px;top:8px;padding:3px 7px;border-radius:4px;background:#080a0ecc;color:#e8edf5;font-size:10px;border:1px solid #ffffff25}.media-info{padding:9px 1px 0}.media-meta{display:flex;justify-content:space-between;gap:8px;color:#8493a7;font-size:10px}.media-info h3{font-size:15px;margin:4px 0 4px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.media-info p{font-size:11px;color:var(--muted);line-height:1.55;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.empty-state{padding:60px 20px;text-align:center;border:1px dashed #303a49;border-radius:10px;color:var(--muted)}.empty-state>span{font-size:36px;color:var(--cyan)}.empty-state h3{color:var(--text);margin:4px 0}.empty-state p{margin:4px 0 14px}.text-link{color:var(--cyan);font-size:13px}.type-rail{margin-top:42px;display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line);border-radius:10px;background:#121720;overflow:hidden}.type-rail-item{display:flex;align-items:center;gap:14px;padding:18px 20px;border-right:1px solid var(--line)}.type-rail-item:last-child{border:0}.type-number{font-size:11px;color:var(--accent);font-variant-numeric:tabular-nums}.type-rail h2{font-size:15px}.type-rail p{margin:3px 0 0;color:var(--muted);font-size:11px}.type-rail-item>a{margin-left:auto;color:var(--cyan);font-size:20px}.device-strip{margin-top:34px;padding:24px 28px;display:flex;align-items:center;gap:20px;border:1px solid #244154;background:linear-gradient(110deg,#13202a,#151b25 70%);border-radius:10px}.device-strip-icon{width:48px;height:48px;flex:none;display:grid;place-items:center;border-radius:9px;background:#17394a;color:var(--cyan);font-size:26px}.device-strip-copy{flex:1}.device-strip-copy .eyebrow{margin-bottom:3px}.device-strip h2{font-size:19px}.device-strip-copy>p:last-child{margin:5px 0 0;color:var(--muted);font-size:12px}.button{display:inline-flex;align-items:center;justify-content:center;gap:12px;padding:10px 17px;border-radius:6px;font-size:13px;font-weight:700;white-space:nowrap;transition:.18s}.button-primary{background:var(--accent);color:#fff}.button-cyan{background:#15384a;border:1px solid #2a607a;color:#7dd3fc}.button-cyan:hover{background:#1d4b61}.about-section{display:grid;grid-template-columns:.8fr 1.2fr;gap:40px;padding:48px 0 54px}.about-section h2{font-size:25px}.about-section>p{color:var(--muted);font-size:14px;line-height:1.9;margin:18px 0 0;max-width:680px}
.site-footer{background:var(--deep);border-top:1px solid #202631;padding:30px 0 16px}.footer-grid{display:grid;grid-template-columns:1.3fr .7fr 1fr;gap:45px}.footer-brand p,.footer-note p{color:var(--muted);font-size:12px;line-height:1.8;max-width:360px}.footer-links{display:flex;flex-direction:column;gap:7px;font-size:12px;color:var(--muted)}.footer-links strong,.footer-note strong{color:var(--text);font-size:13px;margin-bottom:4px}.footer-note p{margin:5px 0}.copyright{border-top:1px solid #202631;margin-top:24px;padding-top:13px;color:#657184;font-size:11px}
.downloads-main{padding-bottom:50px}.download-hero{min-height:300px;margin-top:34px;padding:38px 48px;display:grid;grid-template-columns:1.1fr .9fr;align-items:center;gap:30px;border:1px solid #2b3544;border-radius:12px;background:radial-gradient(ellipse at 80% 50%,#1d2d3b 0%,#141b26 48%,#121720 100%);overflow:hidden}.download-hero-copy>p:not(.eyebrow){max-width:560px;color:var(--muted);line-height:1.9;margin:0 0 22px}.download-visual{height:220px;position:relative;display:flex;align-items:center;justify-content:center}.screen{position:absolute;width:230px;height:145px;border:7px solid #303c4b;border-radius:10px;background:linear-gradient(145deg,#26384a,#121923);box-shadow:0 18px 35px #0005}.screen-back{transform:translate(28px,-16px) rotate(7deg);opacity:.65}.screen-front{transform:translate(-10px,6px) rotate(-5deg);display:flex;flex-direction:column;justify-content:center;padding:25px;gap:10px;color:#fff;font-size:19px;font-weight:800}.screen-front i{height:5px;width:70%;background:#415368;border-radius:5px}.screen-front i:nth-of-type(2){width:52%}.screen-front i:nth-of-type(3){width:62%}.phone-shape{position:absolute;width:67px;height:126px;border:5px solid #64758a;border-radius:13px;background:#111a25;right:14%;bottom:2px;box-shadow:0 14px 28px #0007}.phone-shape b{position:absolute;top:5px;left:50%;transform:translateX(-50%);width:18px;height:3px;border-radius:3px;background:#64758a}.phone-shape span{position:absolute;inset:23px 8px 12px;background:linear-gradient(160deg,#f25c36,#26384a);border-radius:4px}.download-options{padding-top:42px}.download-card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.download-card{padding:23px 22px 20px;border:1px solid var(--line);border-radius:10px;background:var(--panel);min-height:340px;display:flex;flex-direction:column}.download-card-featured{border-color:#28536a;background:linear-gradient(150deg,#172632,#161b24 60%)}.download-card-icon{width:42px;height:42px;display:grid;place-items:center;border-radius:8px;background:#28212a;color:#ff9678;font-size:22px;margin-bottom:16px}.download-card-featured .download-card-icon{background:#17394a;color:var(--cyan)}.device-tag{font-size:10px;color:#ff9b7d;background:#3b261f;padding:4px 8px;border-radius:4px;align-self:flex-start}.device-tag-cyan{color:#7dd3fc;background:#173547}.download-card h2{font-size:19px;margin:12px 0 7px}.download-card>p{color:var(--muted);font-size:12px;line-height:1.8;margin:0}.download-card ul{padding-left:17px;margin:15px 0;color:#b5c1cf;font-size:11px;line-height:2}.download-status{margin-top:auto;padding-top:12px;border-top:1px solid var(--line);font-size:11px;color:var(--cyan)}.install-guide{margin-top:44px;padding:30px;border:1px solid var(--line);border-radius:10px;background:#121720;display:grid;grid-template-columns:.8fr 1.2fr;gap:35px}.guide-heading>p:last-child{font-size:12px;color:var(--muted);line-height:1.8}.install-guide h2{font-size:22px}.guide-steps{list-style:none;margin:0;padding:0}.guide-steps li{display:flex;gap:17px;padding:13px 0;border-bottom:1px solid var(--line-soft)}.guide-steps li:first-child{padding-top:0}.guide-steps li:last-child{border:0;padding-bottom:0}.guide-steps li>span{font-size:12px;color:var(--accent);font-variant-numeric:tabular-nums;padding-top:2px}.guide-steps h3{font-size:14px;margin:0 0 3px}.guide-steps p{font-size:11px;color:var(--muted);line-height:1.8;margin:0}.download-faq{padding-top:42px;max-width:900px}.download-faq h2{margin-bottom:15px}.download-faq details{border-bottom:1px solid var(--line);padding:14px 2px}.download-faq summary{cursor:pointer;font-size:13px;font-weight:700}.download-faq details p{font-size:12px;color:var(--muted);line-height:1.8;margin:10px 0 0}.download-faq summary:focus-visible{outline:2px solid var(--cyan);outline-offset:4px}.back-to-catalog{margin-top:38px;padding:23px 26px;display:flex;align-items:center;justify-content:space-between;background:#171e29;border:1px solid var(--line);border-radius:10px}.back-to-catalog h2{font-size:18px}.back-to-catalog p{margin:4px 0 0;color:var(--muted);font-size:12px}
@media(max-width:900px){.poster-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.header-inner{gap:25px}.download-hero{padding:32px;grid-template-columns:1fr .8fr}.download-card{padding:18px}.footer-grid{gap:24px}}
@media(max-width:650px){.container{width:min(100% - 30px,var(--content))}.site-header{height:64px}.header-inner{gap:16px}.brand{font-size:18px}.brand img{width:30px;height:30px}.main-nav{gap:15px}.main-nav a{font-size:12px}.header-download{font-size:0;padding:8px 10px}.header-download span{font-size:17px;margin:0}.hero-index{padding-top:27px;grid-template-columns:1fr}.hero-copy h1{font-size:28px}.hero-description{font-size:13px}.hero-device-link{margin-top:18px;max-width:250px}.search-form{margin-top:18px}.search-form button{padding:9px 12px;font-size:12px}.category-nav{gap:6px}.category-chip{padding:6px 13px}.catalog-section{padding-top:28px}.section-heading h2{font-size:20px}.poster-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px 11px}.media-info h3{font-size:13px}.media-info p{font-size:10px}.type-rail{grid-template-columns:1fr;margin-top:30px}.type-rail-item{border-right:0;border-bottom:1px solid var(--line);padding:14px 16px}.type-rail-item:last-child{border-bottom:0}.device-strip{padding:18px;gap:12px;flex-wrap:wrap}.device-strip-icon{width:40px;height:40px}.device-strip-copy{flex:1 1 calc(100% - 60px)}.device-strip h2{font-size:16px}.device-strip .button{margin-left:52px}.about-section{grid-template-columns:1fr;gap:8px;padding:36px 0}.about-section>p{margin:0}.footer-grid{grid-template-columns:1fr 1fr;gap:22px}.footer-note{grid-column:1/-1}.download-hero{margin-top:20px;padding:26px 22px;grid-template-columns:1fr;gap:5px}.download-hero h1{font-size:29px}.download-hero-copy>p:not(.eyebrow){font-size:13px}.download-visual{height:175px;transform:scale(.88);transform-origin:center top;margin-top:5px}.download-card-grid{grid-template-columns:1fr}.download-card{min-height:0}.download-card ul{margin-bottom:12px}.install-guide{grid-template-columns:1fr;padding:22px;gap:14px}.download-options{padding-top:32px}.download-faq{padding-top:32px}.back-to-catalog{align-items:flex-start;gap:15px;flex-direction:column}.back-to-catalog .button{width:100%}}
@media(max-width:380px){.main-nav{gap:10px}.main-nav a{font-size:11px}.poster-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.hero-copy h1{font-size:25px}.footer-grid{grid-template-columns:1fr}.footer-note{grid-column:auto}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}
/* 细节状态与窄屏可访问性补充 */
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
::selection{background:#f25c3666;color:#fff}
.poster-link{cursor:default}
.media-card{contain:layout paint}
.media-card:focus-within .poster-link{outline:2px solid var(--cyan);outline-offset:3px}
.search-form button:focus-visible,.button:focus-visible,.category-chip:focus-visible{outline:2px solid #fff;outline-offset:3px}
.download-card li::marker{color:var(--cyan)}
.download-faq summary::marker{color:var(--cyan)}
@media(min-width:1200px){.poster-grid{grid-template-columns:repeat(5,minmax(0,1fr))}.media-card:hover .media-info h3{color:#ff9b7d}}
@media(min-width:1500px){:root{--content:1320px}.poster-grid{grid-template-columns:repeat(6,minmax(0,1fr))}}
@media print{.site-header,.site-footer,.search-form,.category-nav,.device-strip .button{display:none!important}body{background:#fff;color:#111}.media-info p,.section-subtitle{color:#444}.poster-grid{grid-template-columns:repeat(4,1fr)}}