/* 调色板与玻璃质感：优先修改这里即可调整整站。 */
body{overflow-x:clip} /* 旋转的装饰轨道不应产生横向滚动。 */
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*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:96px}body{margin:0;background:var(--paper);color:var(--ink);font-family:"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}body::before{content:"";position:fixed;inset:0;pointer-events:none;z-index:8;opacity:.025;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.82' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Cpath fill='%23000' filter='url(%23n)' opacity='.55' d='M0 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@media(min-width:1500px){.hero{min-height:705px}.hero h1{font-size:64px}.hero-art{scale:1.04;transform-origin:center right}}
@media(max-width:1100px){.wrap{width:calc(100% - 64px)}.hero{grid-template-columns:44% 56%;min-height:610px}.hero h1{font-size:46px}.hero-art{height:420px}.app-window{right:0;top:85px}.app-sidebar{width:111px;padding-inline:7px}.app-tab{font-size:9px;gap:5px}.app-content{padding:19px 16px 12px}.app-heading h2{font-size:16px}.preview-summary{gap:15px}.preview-summary strong{font-size:20px}.donut{width:79px;height:79px}.orb-one{width:280px;height:280px}.orbit-one{width:100%;height:335px}.orbit-two{width:90%;height:395px;left:25px}.floating-tile{width:72px;height:72px;bottom:-9px}.art-caption{left:45px;bottom:-30px;font-size:6px}.hero-meta{gap:8px;font-size:9px}.about{gap:55px}.section-heading h2{font-size:28px}.download-panel{padding:45px}.feature-card{padding-inline:23px}.principles-note{display:none!important}}
@media(max-width:800px){.wrap{width:calc(100% - 48px)}.desktop-nav{gap:22px;margin-left:0}.hero{grid-template-columns:1fr;padding-top:40px;padding-bottom:50px;gap:25px}.hero-copy{text-align:center}.hero-copy>.eyebrow,.hero-actions,.hero-meta{justify-content:center}.hero h1{font-size:57px;letter-spacing:-2px;margin-top:24px}.hero-description{font-size:14px}.desktop-break{display:none}.hero-art{width:min(560px,100%);margin:30px auto 30px;height:435px}.app-window{right:0}.app-sidebar{width:135px}.app-content{padding:22px}.app-heading h2{font-size:18px}.donut{width:90px;height:90px}.orb-one{width:300px;height:300px;right:22px}.app-tab{font-size:10px}.art-caption{left:90px}.floating-tile{bottom:0;right:30px}.scroll-cue{left:50%;transform:translateX(-50%);bottom:18px}.principles{gap:15px;font-size:10px}.principles>span{gap:6px}.section-space{padding-top:65px}.section-heading{align-items:flex-start;gap:20px;flex-direction:column}.feature-grid{gap:13px}.feature-card{padding:20px 18px 105px}.feature-card h3{font-size:17px}.feature-card p{font-size:11px}.feature-card>a{font-size:10px;gap:6px}.card-art{left:15px;right:15px;height:75px}.bars{gap:7px}.about{gap:30px;padding-bottom:70px}.about h2{font-size:28px}.legacy-mark,.new-mark{width:112px;height:133px;border-radius:23px;font-size:81px}.legacy-mark span,.new-mark span{font-size:18px;margin-top:29px}.about-art-caption{font-size:6px;letter-spacing:1px}.download-panel{padding:35px;gap:30px}.download-panel h2{font-size:28px}.download-note{font-size:8px}.download-action .button{font-size:12px;padding-inline:16px;white-space:nowrap}.faq{gap:35px;grid-template-columns:1fr 1.6fr;padding-bottom:65px}.faq h2{font-size:26px}}
@media(max-width:580px){.wrap{width:calc(100% - 40px)}.brand{font-size:23px}.brand-mark{width:34px;height:34px}.desktop-nav{display:none}.nav-github{margin-left:auto;margin-right:16px;border:0;padding:8px;gap:6px}.nav-github>span{display:none}.menu-toggle{display:flex;width:32px;height:32px;border:0;background:none;flex-direction:column;justify-content:center;gap:6px;padding:5px}.menu-toggle span{height:1px;background:#796b5c;width:20px}.mobile-nav:not([hidden]){display:grid;position:absolute;left:0;right:0;top:calc(var(--header-h) - 7px);border-radius:14px;padding:10px;gap:3px;background:#fcf7efee}.mobile-nav a{font-size:14px;padding:12px;border-radius:8px}.mobile-nav a:hover{background:#f2dfc9}.hero{padding-top:27px;gap:7px}.hero-copy>.eyebrow{font-size:7px;letter-spacing:1px}.hero h1{font-size:45px;line-height:1.4;margin-top:23px;letter-spacing:-2px}.hero-description{font-size:13px;line-height:1.9}.hero-actions{gap:20px;margin-top:26px}.button{font-size:13px;padding-inline:17px}.button .end-icon{margin-left:4px}.hero-meta{font-size:9px;margin-top:22px}.hero-art{height:343px;margin-top:37px;margin-bottom:37px}.app-window{top:68px;left:0;right:0;transform:rotate(-2deg)}.app-titlebar{height:34px;padding-inline:11px;font-size:9px}.concept-label{font-size:7px}.window-controls{font-size:10px}.app-body{min-height:230px}.app-sidebar{width:86px;padding:16px 6px 12px}.sidebar-caption{font-size:7px;padding-left:4px;margin-bottom:12px}.app-tabs{gap:6px}.app-tab{font-size:8px;gap:5px;padding:8px 4px}.app-tab svg{width:11px;height:11px}.sidebar-bottom{font-size:6px;gap:4px;padding-inline:0}.app-content{padding:15px 12px 11px}.small-label{font-size:4px;letter-spacing:.7px}.app-heading h2{font-size:13px}.app-heading>svg{width:16px;height:16px}.preview-summary{gap:10px;margin:12px 0}.donut{width:66px;height:66px}.donut>span>svg{width:25px;height:25px}.summary-tag{font-size:7px}.preview-summary strong{font-size:18px;letter-spacing:0}.preview-summary p{font-size:6px}.preview-rows{font-size:7px;gap:9px}.preview-rows>div>span:first-child{gap:5px}.preview-footer{font-size:6px;margin-top:12px;padding-top:9px}.orb-one{width:232px;height:232px;right:0;top:0}.orb-two{width:100px;height:100px;bottom:3px;left:8px}.orbit-one{height:240px;top:40px}.orbit-two{height:320px;left:8px}.floating-badge{top:-4px;left:6px;padding:9px 11px;font-size:9px;gap:6px}.tiny-spark{font-size:16px}.floating-tile{width:59px;height:59px;right:9px;bottom:-12px;border-radius:14px}.floating-tile svg{width:32px;height:32px}.art-caption{left:23px;bottom:-25px;gap:7px;font-size:5px;letter-spacing:1px}.caption-line{width:22px}.principles{padding:20px 0;gap:13px;flex-wrap:wrap;justify-content:center;font-size:9px}.principles>span:last-of-type{display:none}.principles svg{width:11px;height:11px}.section-space{padding-top:55px}.eyebrow{font-size:8px;letter-spacing:1.2px}.section-heading{gap:12px;margin-bottom:23px}.section-heading h2{font-size:25px;letter-spacing:-1px}.section-heading>p{font-size:11px}.feature-grid{grid-template-columns:1fr}.feature-card{padding:25px 25px 28px;min-height:214px}.feature-top{margin-bottom:18px}.feature-icon{width:38px;height:38px}.feature-card h3{font-size:19px}.feature-card p{max-width:82%;position:relative;z-index:1;font-size:12px}.feature-card>a{position:relative;z-index:1;font-size:11px;margin-top:18px}.card-art{left:auto;width:80px;right:18px;bottom:2px;opacity:.45;mask-image:linear-gradient(transparent,#0009)}.bars{gap:4px}.sliders{padding-inline:0}.code-art{font-size:35px;gap:3px}.code-art i{width:15px}.about{grid-template-columns:1fr;gap:20px;padding-top:40px;padding-bottom:55px}.about-art{height:230px;order:1}.about-copy{order:0}.about h2{font-size:29px}.about-copy>p:not(.eyebrow){font-size:12px}.about-art-caption{font-size:7px}.legacy-mark,.new-mark{width:132px;height:148px;font-size:91px}.download-panel{padding:29px;flex-direction:column;align-items:flex-start;gap:27px;border-radius:22px}.download-action{align-items:flex-start;gap:14px;width:100%}.download-action .button{font-size:13px;width:100%}.download-panel h2{font-size:30px}.download-copy>p:last-child{font-size:11px}.download-note{font-size:9px}.download-glow{right:-50%;bottom:-210px}.release-link{align-self:center}.download-note{align-self:center}.faq{grid-template-columns:1fr;gap:26px;padding-bottom:50px}.faq h2{font-size:27px}.faq-intro{font-size:11px}summary{font-size:12px;padding:20px 0}details>p{font-size:11px}.footer{align-items:flex-start;gap:25px;flex-direction:column;padding-top:25px}.footer-right{text-align:left}.footer-right>div{justify-content:flex-start;gap:25px}.footer-right>p{font-size:8px;line-height:1.8}.footer>div:first-child{display:flex;width:100%;justify-content:space-between;align-items:center}.footer>div:first-child>p{margin-top:0;font-size:9px}}
@media(max-width:1100px){.orbit-two{width:80%;height:340px;left:0}}
@media(max-width:580px){.orbit-one{width:85%;left:12px}.orbit-two{width:75%;height:270px;left:18px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}

/* ===== 吸顶毛玻璃顶栏（暖橙色调） =====
   顶栏始终固定显示，且高度在任何滚动位置都保持不变：滚动时不再有收缩动画，页面也就不会抖动或跳动。
   模糊放在 ::before 上而不是 header 本身，这样移动端菜单里的 .glass 仍能模糊到整个页面。
   想调颜色：改下面的 --header-tint-top / --header-tint-bottom（顶栏底色）和 --header-line（底部细线）。 */
:root{
  --header-tint-top:rgba(255,213,166,.30);
  --header-tint-bottom:rgba(255,226,194,.60);
  --header-blur:20px;
}
.site-header{--header-h:80px;position:sticky;top:0;z-index:50;height:var(--header-h);pointer-events:none}
.site-header::before{
  content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;
  background:linear-gradient(180deg,var(--header-tint-top),var(--header-tint-bottom));
  -webkit-backdrop-filter:blur(var(--header-blur)) saturate(165%);backdrop-filter:blur(var(--header-blur)) saturate(165%);
  border-bottom:1px solid var(--header-line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.65),0 8px 24px -14px rgba(189,75,20,.28);
  transition:box-shadow .25s;
}
.site-header.is-scrolled::before{box-shadow:inset 0 1px 0 rgba(255,255,255,.65),0 12px 30px -12px rgba(189,75,20,.42)}
.site-header .desktop-nav{color:#5e4630}
.site-header .desktop-nav a:hover{color:var(--orange-deep)}
.site-header .nav-github{border-color:rgba(189,75,20,.28);background:rgba(255,255,255,.4)}
.site-header .nav-github:hover{background:rgba(255,255,255,.8)}
.site-header .menu-toggle span{background:#6b4a2d}
.site-header .mobile-nav:not([hidden]){background:rgba(255,240,222,.94)}
/* 顶栏变矮后，把差值补给首屏，保持原有的首屏位置 */
.hero{padding-top:66px}
@media(max-width:800px){.site-header{--header-h:72px}.hero{padding-top:53px}}
@media(max-width:580px){.site-header{--header-h:66px}.hero{padding-top:39px}}
@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){.site-header::before{background:#fbe3c6}}