:root{--brand:#5261d8;--brand-dark:#3f4dbb;--ink:#20283d;--muted:#657087;--line:#e5e9f2;--soft:#f4f6fc;--white:#fff;--footer:#111a2c;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--white);font-synthesis:none}
*{box-sizing:border-box}body{margin:0;line-height:1.65}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}img{max-width:100%;height:auto}button,a,summary{touch-action:manipulation}a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{outline:3px solid #8491ed;outline-offset:5px}svg{flex-shrink:0}h1,h2,h3,p{margin:0}h1,h2,h3{line-height:1.3}html{scroll-behavior:smooth;scroll-padding-top:100px}section,footer,details{scroll-margin-top:100px}.wrap{width:min(1200px,calc(100% - 64px));margin-inline:auto}.skip-link{position:fixed;top:-70px;left:20px;z-index:30;padding:12px 18px;background:var(--ink);color:white;border-radius:8px}.skip-link:focus{top:12px}.site-header{position:sticky;top:0;z-index:20;background:#ffffffed;backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}.nav{height:80px;display:flex;align-items:center;justify-content:space-between;gap:24px}.nav-brand{display:flex;align-items:center;flex-shrink:0;min-height:44px}.nav-brand img{width:174px;display:block}.nav-links{display:flex;align-items:center;gap:30px;font-size:14px;color:#525e77}.nav-links>a{display:flex;align-items:center;min-height:44px}.nav-links>a:hover{color:var(--brand)}.nav-links .nav-download{padding:9px 20px;border-radius:8px;background:var(--ink);color:white}
.hero{padding:72px 0 50px;background:radial-gradient(ellipse at 85% 30%,#edf0ff 0,transparent 65%),linear-gradient(#fff,#fafbfe)}.hero-grid{display:grid;grid-template-columns:1fr 1.2fr;align-items:center;gap:48px}.eyebrow{display:flex;align-items:center;gap:9px;font-size:12px;font-weight:650;letter-spacing:1.6px;color:var(--brand);margin-bottom:22px}.eyebrow:before{content:"";width:21px;height:2px;background:currentColor}.hero h1{font-size:clamp(38px,3.7vw,52px);font-weight:720;letter-spacing:-1.5px;line-height:1.3}.hero h1 span{color:var(--brand)}.hero-lead{margin-top:24px;font-size:17px;line-height:1.9;color:var(--muted);max-width:450px}.hero-actions{display:flex;align-items:center;gap:20px;margin-top:30px;flex-wrap:wrap}.button{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:50px;border-radius:9px;padding:13px 22px;border:1px solid transparent;font-size:15px;font-weight:600;transition:background .18s,border-color .18s}.primary{background:var(--brand);color:white;box-shadow:0 5px 12px #5261d817}.primary:hover{background:var(--brand-dark)}.secondary{background:white;border-color:#d8ddec;color:#404b66}.secondary:hover{background:#f5f7ff;border-color:#adb8ed}.text-link{font-size:14px;color:var(--brand);text-decoration:underline;text-underline-offset:5px;min-height:44px;display:inline-flex;align-items:center}.release-meta{font-size:12px;color:var(--muted);margin-top:16px}.hero-flags{display:flex;flex-wrap:wrap;gap:16px;margin-top:26px;font-size:12px;color:#4b5873}.hero-flags span{display:flex;align-items:center;gap:6px}.hero-flags svg{color:var(--brand)}.product-figure{margin:0;min-width:0}.preview-window{background:white;border:1px solid #dbe1f1;border-radius:13px;overflow:hidden;box-shadow:0 24px 60px #293b7914,0 3px 10px #293b7908}.window-bar{display:flex;align-items:center;gap:5px;padding:12px 14px;border-bottom:1px solid var(--line);background:#fafbfe}.window-bar i{width:7px;height:7px;background:#d6ddea;border-radius:50%}.window-bar span{margin-left:auto;font-size:10px;color:#626e85;letter-spacing:.5px}.preview-link{display:block;position:relative}.preview-link img{display:block;width:100%;aspect-ratio:1440/940}.preview-link:after{content:"查看大图 ↗";position:absolute;bottom:12px;right:12px;background:#ffffffee;border:1px solid var(--line);border-radius:6px;padding:5px 9px;font-size:11px;color:#4c5873}.product-figure figcaption{font-size:12px;color:var(--muted);margin-top:14px;text-align:center}.workflow-strip{display:flex;align-items:center;justify-content:center;gap:24px;padding:25px 0;margin-top:58px;border-top:1px solid var(--line);font-size:13px;color:#59657c}.workflow-strip span{display:flex;align-items:center;gap:10px}.workflow-strip b{width:23px;height:23px;border-radius:50%;background:#e9edfd;color:#5261bc;font-size:11px;display:grid;place-items:center;font-weight:600}.workflow-strip .flow-arrow{color:#a8b0c1;font-size:18px}
.section{padding:88px 0}.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:30px;margin-bottom:36px}.section-heading h2{font-size:32px;letter-spacing:-.8px}.section-heading p{color:var(--muted);font-size:14px;max-width:390px}.section-kicker{font-size:11px;font-weight:650;color:var(--brand);letter-spacing:2px;margin-bottom:12px}.feature-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.feature{border-top:2px solid #dfe4f3;padding:28px 4px 10px}.feature-icon{width:42px;height:42px;background:#eff2ff;border-radius:10px;display:grid;place-items:center;color:var(--brand);margin-bottom:22px}.feature h3{font-size:19px;margin-bottom:13px}.feature p{color:var(--muted);font-size:14px;line-height:1.9}.language-row{margin-top:38px;padding:24px 26px;border:1px solid var(--line);background:#fafbfe;border-radius:12px;display:flex;gap:24px;align-items:center}.language-label{flex-shrink:0;font-size:13px;font-weight:600}.language-list{display:flex;flex-wrap:wrap;gap:8px}.language-list span{font-size:12px;background:#fff;border:1px solid var(--line);border-radius:5px;padding:4px 10px;color:#56627c}
.download-section{background:var(--soft);border-block:1px solid var(--line)}.download-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:24px}.download-main{border:1px solid #cad3f4;border-radius:16px;background:#fff;padding:32px;box-shadow:0 8px 26px #28397005}.platform-title{display:flex;align-items:center;gap:14px}.platform-title h3{font-size:21px}.platform-title p{font-size:13px;color:var(--muted);margin-top:4px}.available{margin-left:auto;white-space:nowrap;padding:4px 9px;border-radius:5px;background:#eef6f2;color:#287555;font-size:11px}.download-spec{display:flex;gap:28px;margin:27px 0;font-size:13px;color:var(--muted);flex-wrap:wrap}.download-spec strong{display:block;color:var(--ink);font-size:14px;margin-top:3px;font-weight:550}.download-buttons{display:flex;gap:12px;flex-wrap:wrap}.download-note{font-size:12px;color:var(--muted);margin-top:17px}.other-platforms{display:grid;gap:16px}.platform-pending{padding:26px;border:1px solid var(--line);border-radius:14px;background:#ffffff8c;display:flex;align-items:center;gap:16px}.platform-pending svg{color:#8490a6}.platform-pending h3{font-size:16px}.platform-pending p{font-size:13px;color:var(--muted);margin-top:6px}.platform-status{margin-left:auto;white-space:nowrap;font-size:12px;color:#647087;background:#edf0f5;border-radius:5px;padding:4px 8px}.mobile-download-note{display:none}.copy-fallback{margin-top:18px}.copy-fallback label{display:block;font-size:13px;margin-bottom:6px}.copy-fallback input{width:100%;min-height:44px;padding:8px;border:1px solid #cdd5e7;border-radius:6px;background:#fff;color:var(--ink);font-size:13px}.copy-status{font-size:13px;color:#42529f;margin-top:12px;min-height:22px}.install-intro{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:42px;margin-bottom:22px}.install-intro h3{font-size:18px}.install-steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px;list-style:none;margin:0;padding:0}.install-steps li{display:flex;align-items:flex-start;gap:12px}.install-steps b{color:var(--brand);font-size:13px;line-height:26px}.install-steps h4{font-size:14px;margin:0 0 7px}.install-steps p{font-size:13px;color:var(--muted)}
.faq-layout{display:grid;grid-template-columns:.8fr 1.5fr;gap:80px}.faq-intro h2{font-size:32px;margin-bottom:16px}.faq-intro p{font-size:14px;color:var(--muted);margin-bottom:18px}.faq-list details{border-bottom:1px solid var(--line)}.faq-list details:first-child{border-top:1px solid var(--line)}.faq-list summary{cursor:pointer;padding:22px 26px 22px 0;position:relative;list-style:none;font-size:15px;font-weight:550}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:"+";position:absolute;right:0;color:var(--brand);font-size:21px;top:16px}.faq-list details[open] summary:after{content:"−"}.faq-list details p{padding:0 26px 22px 0;font-size:14px;line-height:1.9;color:var(--muted)}.faq-list details a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
/* 保留即触品牌、友情链接与两张原有二维码；深色页脚承接原品牌素材。 */
footer{background:var(--footer);padding:58px 32px 28px;color:#edf1fb}.footer-inner{max-width:1200px;margin:auto;display:grid;grid-template-columns:1.3fr .8fr 1fr;gap:48px;align-items:start}.footer-brand img{height:28px;width:auto;margin-bottom:16px}.footer-brand p{font-size:13px;color:#a8b3c9}.footer-links h4{font-size:13px;margin:0 0 18px;color:#b1bcd2;font-weight:500}.footer-links a{display:inline-flex;align-items:center;gap:6px;min-height:44px;font-size:14px;color:#bac3ff}.footer-links a:hover{text-decoration:underline}.footer-qr{display:flex;gap:22px;justify-content:flex-end}.qr-item{text-align:center}.footer-qr img{display:block;width:116px;height:116px;border-radius:8px;background:#fff;padding:4px;margin-bottom:12px}.qr-label{font-size:12px;color:#b4bed2}.footer-bottom{max-width:1200px;margin:36px auto 0;padding-top:24px;border-top:1px solid #2b354a;display:flex;justify-content:space-between;gap:16px;font-size:12px;color:#a8b3c9}
@media(min-width:1600px){.hero{padding-top:96px}.hero-grid{gap:68px}}
@media(max-width:1050px){.hero-grid{gap:28px;grid-template-columns:1fr 1fr}.hero h1{font-size:38px}.hero-lead{font-size:15px}.hero-actions{gap:12px}.footer-inner{gap:24px;grid-template-columns:1fr .6fr 1fr}.faq-layout{gap:40px}.platform-pending{padding:20px}.platform-status{font-size:11px}.feature-grid{gap:20px}}
@media(max-width:800px){.wrap{width:calc(100% - 40px)}.nav{height:70px;gap:16px}.nav-brand img{width:148px}.nav-links{gap:18px}.nav-links .nav-feature{display:none}.hero{padding:48px 0 20px}.hero-grid{grid-template-columns:1fr;gap:34px}.hero-copy{max-width:600px}.hero h1{font-size:44px}.hero-lead{max-width:540px;font-size:16px}.product-figure{max-width:680px}.workflow-strip{margin-top:34px;gap:14px;flex-wrap:wrap}.section{padding:64px 0}.section-heading{align-items:flex-start;flex-direction:column;gap:16px}.feature-grid{grid-template-columns:1fr;gap:20px}.feature{display:grid;grid-template-columns:48px 1fr;column-gap:18px;padding-top:24px}.feature-icon{grid-row:span 2}.feature h3{margin:2px 0 9px}.language-row{align-items:flex-start;flex-direction:column;gap:14px;padding:22px}.download-grid{grid-template-columns:1fr}.other-platforms{grid-template-columns:1fr 1fr}.platform-pending{flex-wrap:wrap;gap:12px}.platform-pending>svg{width:22px;height:22px}.platform-status{margin-left:34px}.install-steps{gap:20px}.faq-layout{grid-template-columns:1fr;gap:28px}.footer-inner{grid-template-columns:1fr 1fr}.footer-qr{justify-content:flex-start;grid-column:span 2}.nav-links .nav-download{padding:8px 14px}.mobile-download-note{display:block;color:var(--muted);font-size:13px;margin-bottom:22px}}
@media(max-width:480px){.wrap{width:calc(100% - 36px)}.nav{height:68px}.nav-brand img{width:128px}.nav-links{gap:14px;font-size:13px}.nav-links .nav-download{padding:8px 12px;min-height:40px}.hero{padding-top:38px}.eyebrow{font-size:10px;letter-spacing:1px;margin-bottom:18px}.hero h1{font-size:36px;letter-spacing:-1px}.hero-lead{font-size:15px;margin-top:20px}.hero-actions{align-items:stretch;flex-direction:column;gap:5px;margin-top:24px}.hero-actions .text-link{justify-content:center}.hero-flags{gap:12px;font-size:11px;margin-top:20px}.release-meta{font-size:11px;text-align:center}.window-bar{padding:9px 12px}.product-figure figcaption{font-size:11px}.workflow-strip{display:grid;grid-template-columns:1fr 1fr;gap:14px;padding:22px 0;font-size:12px}.workflow-strip .flow-arrow{display:none}.section{padding:50px 0}.section-heading h2,.faq-intro h2{font-size:27px}.download-main{padding:23px 20px}.platform-title{gap:10px;flex-wrap:wrap}.platform-title h3{font-size:18px}.platform-title>svg{width:26px;height:26px}.available{font-size:10px;padding:3px 7px}.download-spec{gap:20px}.download-buttons{flex-direction:column}.download-buttons .button{width:100%}.other-platforms{grid-template-columns:1fr;gap:12px}.platform-pending{flex-wrap:nowrap;padding:20px}.platform-status{margin-left:auto}.install-intro{align-items:flex-start;flex-direction:column;gap:6px;margin-top:34px}.install-steps{grid-template-columns:1fr;gap:22px}.feature{grid-template-columns:42px 1fr;column-gap:14px}.feature h3{font-size:18px}.feature p{font-size:13px}.faq-list summary{font-size:14px}.faq-list details p{font-size:13px}footer{padding:40px 22px 26px}.footer-inner{gap:30px}.footer-brand{grid-column:span 2}.footer-links{grid-column:span 2}.footer-links h4{margin-bottom:6px}.footer-qr{gap:22px;justify-content:flex-start}.footer-qr img{width:116px;height:116px}.footer-bottom{flex-direction:column;gap:8px;font-size:11px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

/* Intel 版本已发布，沿用平台卡片布局并提供明确的下载状态。 */
.platform-download{background:#fff;border-color:#cdd5f1;transition:background .18s,border-color .18s}
.platform-download:hover{background:#f5f7ff;border-color:#9ba9e8}
.platform-download svg{color:var(--brand)}
.platform-download .platform-status{background:#edf0ff;color:#4051b5}

/* Keep breathing room after removing download metadata. */
.download-main .platform-title + .download-buttons{margin-top:24px}