/* 青课：纸墨、青稞黄与校园手账，朱砂作为辅助。无第三方样式依赖。 */
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/* 功能图解：自定义课程、原生桌面与通知。图中控件均为静态示意。 */
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.custom-sheet{width:100%;max-width:360px;padding:23px;background:var(--white);border:1px solid #d7cfbe;border-radius:12px;box-shadow:0 18px 30px -20px #584f3d66;transform:rotate(1.5deg)}
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.saved-course{display:flex;gap:9px;align-items:center;margin-top:16px;padding:11px 12px;background:#e9eddf;border-radius:5px;color:var(--green)}.saved-course>.icon{width:17px}.saved-course b{font-size:11px;font-weight:500;display:block}.saved-course span{display:block;font-size:9px;margin-top:2px}
.native-section{padding-top:72px;border-bottom:1px solid var(--line)}
.native-layout{display:grid;grid-template-columns:1fr 1fr;column-gap:78px;align-items:center}
.native-copy{grid-column:2;grid-row:1}.native-copy>.eyebrow{margin-bottom:17px}.native-badge{display:inline-flex;align-items:center;gap:8px;font-size:11px;color:var(--green);padding:5px 10px;border:1px solid #c5ceba;border-radius:4px;margin-bottom:20px}.native-badge>span{width:6px;height:6px;border-radius:50%;background:var(--green)}
.native-copy h2{font-size:44px;line-height:1.4;margin-bottom:20px}.native-intro{font-size:14px;color:var(--muted);line-height:1.9;max-width:30ch}.native-benefits{padding:0;margin:28px 0 23px;list-style:none;display:grid;gap:20px}.native-benefits>li{display:flex;gap:14px}.native-benefits .icon{color:var(--green);width:19px;height:21px;margin-top:2px}.native-benefits b{font-size:13px;font-weight:600;display:block}.native-benefits span{font-size:12px;color:var(--muted);display:block;margin-top:3px}.native-sync-note{font-size:11px;color:var(--muted);padding-left:13px;border-left:2px solid #ccd2be;line-height:1.9;max-width:43ch}
.native-figure{grid-column:1;grid-row:1;min-width:0}.home-scene{height:534px;position:relative;display:grid;place-items:center;isolation:isolate}.home-scene::before{content:"";position:absolute;inset:26px 0 16px;background:#e4e7da;border-radius:230px 230px 12px 12px;z-index:-1}
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.widget-selection{position:relative;padding:5px;border:1px dashed #64805e;border-radius:17px}.widget-selection>i{position:absolute;width:7px;height:7px;background:#eef1e8;border:1px solid #64805e;border-radius:50%;z-index:2}.widget-selection>i:nth-child(1){top:-4px;left:calc(50% - 3px)}.widget-selection>i:nth-child(2){bottom:-4px;left:calc(50% - 3px)}.widget-selection>i:nth-child(3){left:-4px;top:calc(50% - 3px)}.widget-selection>i:nth-child(4){right:-4px;top:calc(50% - 3px)}
.native-widget-shot{display:block;width:100%;height:auto;border-radius:11px;box-shadow:0 5px 13px -8px #3039295c}
/* 取快递面板是整屏截图（624×1440，比例约 1:2.3），铺满一栏会高得离谱，
   所以装进白色手机框里居中。展示规格沿用「看看青课」那几幅与首屏插画：
   网点底衬 + 小角度旋转 + 衬线体浮标签（.preview-canvas / .phone-frame / .art-note）。 */
.pickup-stage{position:relative;display:flex;align-items:center;justify-content:center;padding:34px 30px;background:#e4e7da;background-image:radial-gradient(#a5ad962e .7px,transparent .7px);background-size:9px 9px;border-radius:18px}
.pickup-stage .art-note{top:16px;right:16px}
.pickup-stage .phone-frame{width:236px}
.native-shot{display:block;width:100%;height:auto;border-radius:29px}
@media(max-width:1080px){.pickup-stage{padding:28px 24px}}
@media(max-width:640px){.pickup-stage{padding:22px 14px}.pickup-stage .phone-frame{width:214px}.pickup-stage .art-note{top:10px;right:10px;font-size:15px}}
.home-apps{display:flex;justify-content:space-around;margin-top:24px;text-align:center;align-items:flex-start}.home-apps>span{display:grid;justify-items:center;gap:6px;color:#4c5a42}.home-apps .icon{width:34px;height:34px;padding:7px;border-radius:11px;background:#f7f5edba}.home-apps img{width:34px;height:34px;border-radius:11px}.home-apps small{font-size:8px}.home-indicator{margin:auto auto 0;width:62px;height:3px;background:#64715a;border-radius:4px}.widget-size-label{position:absolute;right:-5px;bottom:62px;transform:rotate(7deg);font:17px/1.5 var(--serif);color:var(--green);padding:7px 10px;background:var(--paper);border-bottom:1px solid #b8c2ab}
.native-figure figcaption{font-size:10px;color:var(--muted);text-align:center;margin-top:8px}
.widget-setup{margin-top:37px;background:#f9f7f0;border:1px solid var(--line);border-radius:7px}.widget-setup>summary{padding:16px 25px;min-height:64px;font-size:14px}.widget-setup summary small{font-size:12px;font-weight:400;color:var(--muted);margin-left:18px}.widget-steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:33px;list-style:none;padding:4px 25px 20px;margin:0}.widget-steps>li{min-width:0}.widget-steps>li>b{display:block;font-size:13px;font-weight:500;margin:15px 0 8px}.widget-steps>li>b>span{font:15px var(--serif);color:var(--red);margin-right:11px}.widget-steps p{font-size:12px;color:var(--muted);line-height:1.9}.widget-launcher-note{margin:0 25px 21px;border-top:1px solid var(--line);padding-top:14px;color:var(--muted);font-size:11px}
.step-art{height:116px;position:relative;overflow:hidden;background:#e4e7da;border-radius:5px;padding:14px 20px}.step-mini-title{display:block;font:13px var(--serif);color:#59644d}.step-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:4px;margin-top:10px;max-width:125px}.step-grid>i{height:15px;border-radius:2px;background:#c1ceb3}.step-grid>i:nth-child(2),.step-grid>i:nth-child(4){background:#e0c5b2}.step-complete{position:absolute;right:12px;bottom:12px;padding:4px 8px;background:var(--white);border:1px solid #cbd5be;border-radius:4px;font-size:10px;color:var(--green)}
.step-menu{background:#e4e7da}.step-long-press{position:absolute;width:34px;height:34px;border:1px solid #bca98c;border-radius:50%;left:18%;top:44px;box-shadow:0 0 0 9px #c5b38f1f}.step-long-press::after{content:"";position:absolute;width:8px;height:8px;background:#bca98c;inset:0;margin:auto;border-radius:50%}.step-context{width:110px;position:absolute;top:13px;right:13%;background:var(--white);border-radius:7px;padding:7px;box-shadow:0 5px 15px #63563814;font-size:9px}.step-context>span,.step-context>b{display:block;padding:3px 7px;font-weight:400;color:var(--muted)}.step-context>b{background:#e4eada;color:var(--green);border-radius:4px;margin:3px 0}
.step-place{background:#e4e7da;display:flex;align-items:center;justify-content:center;gap:17px}.step-picker{width:140px;padding:8px 10px;background:var(--white);border:1px solid #c6ceba;border-radius:5px;transform:rotate(-3deg)}.step-picker>span{font:13px var(--serif);display:flex;justify-content:space-between;align-items:center}.step-picker small{font:8px var(--sans);color:var(--muted)}.step-picker>div{display:grid;gap:4px;margin:8px 0}.step-picker i{height:4px;background:#d1d9c8;border-radius:2px}.step-picker i:last-child{width:70%}.step-picker>b{font-size:8px;color:var(--muted);font-weight:400}.step-place-mark{font-size:22px;color:var(--green)}
.reminder-feature{display:grid;grid-template-columns:1fr 1fr;gap:78px;align-items:center;padding:45px 0 48px}.reminder-copy>.eyebrow{font-size:10px;margin-bottom:12px}.reminder-copy h3{font-size:31px;line-height:1.4;margin-bottom:15px}.reminder-copy>p:not(.eyebrow){font-size:13px;color:var(--muted);max-width:33ch;line-height:1.9}.reminder-permission{display:block;font-size:10px;color:var(--muted);max-width:44ch;line-height:1.9;margin-top:12px}.notification-figure{min-width:0}.notification-demo{background:#fffdf7;border:1px solid #ddd5c4;border-radius:17px;padding:20px 22px;max-width:398px;margin-inline:auto;box-shadow:0 13px 30px -23px #594c3680;transform:rotate(1deg)}.notification-source{display:flex;align-items:center;gap:7px;font-size:10px;color:var(--muted);margin-bottom:13px}.notification-source .icon{width:16px;height:16px;color:var(--red)}.notification-source>small{margin-left:auto;font-size:9px}.notification-demo>b{font-size:14px;font-weight:600}.notification-demo>p{font-size:12px;color:var(--muted);line-height:1.9;margin-top:7px}.lead-options{display:flex;justify-content:center;gap:8px;margin-top:23px}.lead-options>span{padding:3px 9px;border:1px solid #d7d3c6;border-radius:4px;font-size:10px;color:var(--muted)}.lead-options>.is-sample{color:var(--red);background:#f0e2d6;border-color:#cfae99}.notification-figure figcaption{font-size:10px;color:var(--muted);text-align:center;margin-top:11px}
@media(max-width:1000px){.native-layout,.reminder-feature{gap:40px}.native-copy h2{font-size:38px}.widget-size-label{right:-4px;font-size:15px}.widget-steps{gap:20px}}
@media(max-width:900px){.native-section{padding-top:48px}.native-layout{grid-template-columns:1fr;gap:27px}.native-copy,.native-figure{grid-column:auto;grid-row:auto}.native-copy h2{font-size:34px;line-height:1.35;margin-bottom:15px}.native-copy h2 br{display:none}.native-badge{margin-bottom:15px}.native-intro{max-width:45ch;font-size:13px}.native-benefits{gap:16px;margin:24px 0 20px}.native-benefits b{font-size:13px}.native-benefits span{font-size:12px}.native-sync-note{max-width:none}.native-figure{width:100%;max-width:440px;margin-inline:auto}.home-scene{height:524px}.widget-size-label{right:0;bottom:38px}.widget-setup{margin-top:27px}.widget-setup>summary{padding:14px 19px;font-size:13px}.widget-setup summary small{font-size:10px;margin-left:10px}.widget-steps{grid-template-columns:1fr;gap:24px;padding:4px 19px 22px}.widget-steps>li{display:grid;grid-template-columns:125px minmax(0,1fr);column-gap:18px;align-content:start}.step-art{grid-row:1/3;height:126px;padding:13px 10px}.widget-steps>li>b{margin-top:5px;font-size:12px}.widget-steps>li>b>span{margin-right:7px}.widget-steps p{font-size:11px}.step-mini-title{font-size:10px}.step-grid{margin-top:13px}.step-complete{right:6px;bottom:9px;font-size:8px}.step-long-press{left:15px;top:70px;width:23px;height:23px}.step-context{width:87px;right:8px;top:12px;font-size:8px}.step-context>span,.step-context>b{padding:3px 4px}.step-place{gap:5px;padding:12px}.step-picker{width:90px;padding:8px}.step-picker>span{font-size:11px}.step-place-mark{display:none}.widget-launcher-note{margin:0 19px 19px;font-size:10px}.reminder-feature{grid-template-columns:1fr;gap:26px;padding:36px 0 40px}.reminder-copy h3{font-size:28px}.reminder-copy h3 br{display:none}.reminder-copy>p:not(.eyebrow),.reminder-permission{max-width:none}.notification-demo{padding:19px 20px}.notification-demo>b{font-size:13px}.custom-sheet{max-width:345px;padding:21px}.paste-sample{padding:11px 12px}.notification-figure{padding-inline:5px}}
@media(max-width:360px){.home-screen{width:272px;height:478px;padding-inline:11px;border-width:5px}.home-clock{font-size:53px;margin-top:23px;margin-bottom:25px}.home-scene{height:513px}.widget-size-label{font-size:14px;right:2px;bottom:22px}.native-figure figcaption{font-size:9px}.native-copy h2{font-size:30px}.widget-setup summary small{display:block;margin:3px 0 0}.widget-steps>li{grid-template-columns:1fr;gap:0}.step-art{grid-row:auto;height:116px;max-width:none}.widget-steps>li>b{margin-top:13px}.step-context{right:20%;width:110px;font-size:9px}.step-long-press{left:22%;top:42px;width:28px;height:28px}.step-picker{width:145px}.step-place-mark{display:block}.step-grid{max-width:130px}.step-complete{font-size:10px;right:15px}.step-mini-title{font-size:12px}.custom-sheet{padding:17px}.saved-course b{font-size:10px}.notification-demo{padding:17px}.lead-options{gap:6px}.lead-options>span{padding:3px 7px}}
.privacy-section{display:flex;align-items:center;gap:30px;padding-block:64px}.privacy-symbol{width:72px;height:85px;border:1px solid #d1d7c7;border-radius:40px 40px 35px 35px;display:grid;place-items:center;background:#e4e7da;color:var(--green);flex-shrink:0}.privacy-symbol>.icon{width:31px;height:31px}.privacy-section .eyebrow{margin-bottom:10px}.privacy-section h2{font-size:29px;margin-bottom:13px}.privacy-section p:not(.eyebrow){font-size:13px;color:var(--muted)}.privacy-seal{margin-left:auto;border:1px solid var(--green);padding:9px 8px 7px;font:20px/1.2 var(--serif);color:var(--green);transform:rotate(8deg);opacity:.8}
.download-section{background:#eeece2;border-block:1px solid var(--line);padding-block:66px 32px}
.download-layout{display:grid;grid-template-columns:1fr 1.18fr;column-gap:70px;row-gap:30px}.download-copy{position:relative}.download-copy .eyebrow{margin-bottom:17px}.download-copy h2{font-size:39px;line-height:1.45;margin-bottom:20px}.download-copy>p:not(.eyebrow){font-size:13px;color:var(--muted)}.download-version{display:flex;align-items:center;gap:13px;margin:8px 0 22px}.download-version b{font-size:14px}.download-version>span{font-size:11px;color:var(--muted)}.download-copy .compatibility-note{font-size:11px!important;max-width:35ch;line-height:1.9;margin-top:14px}.download-mascot{position:absolute;right:0;bottom:10px;width:62px;height:62px;border-radius:16px;transform:rotate(8deg);opacity:.9}
.download-options{padding:30px;background:var(--paper);border:1px solid #dcd4c4;border-radius:8px}.download-options>h3{font-size:25px;margin-bottom:9px}.download-subtitle{font-size:11px;color:var(--muted);margin-bottom:22px}.updates-list>article:not(.latest-release){border-left:2px solid var(--line);padding-left:20px;margin-bottom:22px}.download-count{font-size:11px;color:var(--muted);margin:-14px 0 22px}.download-count>b{font:600 16px var(--sans);color:var(--ink);margin-right:2px}.download-count>span{font-size:10px}.version-stats{margin:-10px 0 22px;padding:12px 14px;border:1px solid var(--line);border-radius:8px;background:var(--paper)}.version-stats-title{font-size:11px;color:var(--ink);margin:0 0 8px}.version-stats-title>span{color:var(--muted);font-size:10px;margin-left:6px}.version-stats-list{list-style:none;margin:0;padding:0;display:grid;gap:6px}.version-stats-list>li{display:flex;justify-content:space-between;gap:12px;font-size:11px;color:var(--muted)}.version-stats-list>li>b{color:var(--ink);font-weight:600}.version-stats-note{font-size:10px;color:var(--muted);margin:8px 0 0}.package{display:flex;align-items:center;justify-content:space-between;gap:14px;border-bottom:1px solid #dfd8c9;padding:17px 0}.package:first-child{padding-top:5px}.package:last-child{border-bottom:0}.package b{display:block;font-size:13px;font-weight:500}.package small{display:block;color:var(--muted);font-size:11px;margin-top:5px}.package small>span{padding:0 8px}.recommend-badge{font-size:9px;color:var(--green);border:1px solid #bdc9b3;border-radius:3px;padding:2px 5px;white-space:nowrap;margin-left:5px}.package>a{display:grid;place-items:center;width:42px;height:42px;border:1px solid #d3c6b4;border-radius:50%;color:var(--red);flex-shrink:0}.package>a:hover{background:#eadbd0}.package>a>.icon{width:17px;height:17px}
.install-help{margin-top:7px;border-top:1px solid #dfd8c9}.install-help>summary{font-size:11px;min-height:47px}.install-help ol{padding-left:20px;font-size:12px;color:var(--muted);margin:0 0 10px}.install-help p{font-size:11px;color:var(--muted)}
.technical-details{grid-column:1/-1;border-top:1px solid #d4cdbd}.technical-details>summary{font-size:12px;min-height:48px}.technical-details>summary>span{font-size:10px;color:var(--muted);font-weight:400}.technical-content{padding:15px 0 20px}.app-specs{display:grid;grid-template-columns:2fr 1fr 1.5fr .7fr;gap:25px;margin:0 0 25px}.app-specs dt{font-size:11px;color:var(--muted)}.app-specs dd{font-size:12px;margin:4px 0 0}.technical-content h3{font-size:20px;margin-bottom:12px}.hash-list{margin:0 0 18px;display:grid;gap:13px}.hash-list dt{font-size:12px}.hash-list dd{margin:2px 0 0}.technical-content code{font:11px/1.8 ui-monospace,Consolas,monospace;overflow-wrap:anywhere}.technical-content>p{font-size:12px;color:var(--muted)}
.updates-section{display:grid;grid-template-columns:1fr 1.6fr;gap:70px}.updates-intro h2{font-size:32px}.updates-intro .eyebrow{margin-bottom:16px}.updates-intro>p:last-child{font-size:12px;color:var(--muted);margin-top:18px}.latest-release{border-left:2px solid var(--red);padding-left:20px;margin-bottom:22px}.release-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px}.release-heading h3{font:600 18px var(--sans)}.release-heading time{color:var(--muted);font-size:10px}.release-badge,.pending-badge{display:inline-block;font:10px/1.5 var(--sans);padding:3px 7px;border-radius:4px;margin-left:8px;background:#e1e8d9;color:var(--green)}.pending-badge{background:#ece0c4;color:#775c20;margin-left:0}.latest-release>p{font-size:13px;color:var(--muted);line-height:1.9}.updates-list details{border-block-start:1px solid var(--line)}.updates-list details:last-child{border-bottom:1px solid var(--line)}.updates-list ul{color:var(--muted);font-size:12px;padding-left:20px;margin:0 0 20px}.past-releases{padding-bottom:14px}.past-releases article{padding:9px 0 12px}.past-releases h3{font:500 13px var(--sans);margin-bottom:6px}.past-releases h3 small{font-weight:400;color:var(--muted);font-size:10px;margin-left:12px}.past-releases p{font-size:12px;color:var(--muted)}
.faq-section{display:grid;grid-template-columns:1fr 1.6fr;gap:70px;border-top:1px solid var(--line);padding-block:62px 76px}.faq-section .eyebrow{margin-bottom:13px}.faq-section h2{font-size:30px}.faq-list details{border-bottom:1px solid var(--line)}.faq-list summary{min-height:61px;font-size:13px}.faq-list details:first-child>summary{padding-top:0}.faq-list p{font-size:13px;color:var(--muted);line-height:1.9;padding:0 25px 20px 0}
.site-footer{display:flex;justify-content:space-between;align-items:center;gap:30px;border-top:1px solid var(--line);padding-block:30px 36px}.footer-brand{font:26px var(--serif);letter-spacing:.12em}.footer-brand>span{display:block;font:11px var(--sans);letter-spacing:.02em;color:var(--muted);margin-top:10px}.site-footer>div>span{font-size:11px}.site-footer small{display:block;font-size:10px;color:var(--muted);line-height:1.8;margin-top:6px}.back-top{font-size:11px;color:var(--muted);padding:10px 0}.mobile-download{display:none}
@keyframes arrive{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}
@media(min-width:1500px){.hero{min-height:730px}.hero h1{font-size:72px}}
@media(max-width:1000px){.container{width:calc(100% - 64px)}.main-nav{gap:20px}.main-nav a:first-child{display:none}.hero{gap:12px}.hero h1{font-size:51px}.hero-description{font-size:13px}.hero-actions{gap:18px}.hero-assurances{gap:9px;font-size:10px}.hero-art{transform:scale(.94);transform-origin:center right}.art-note{right:0}.reminder-slip{right:-12px}.feature-card{padding:24px 20px}.feature-card h3{font-size:24px}.feature-detail{font-size:9px}.preview-story{padding:32px}.preview-story h3{font-size:31px}.preview-canvas{padding:28px}.download-layout,.updates-section,.faq-section{gap:36px}.download-mascot{display:none}.section-heading h2{font-size:30px}}
@media(max-width:900px){
  html{scroll-padding-top:88px}.container{width:calc(100% - 40px)}.nav-inner{height:64px;gap:15px}.brand>span{font-size:24px}.brand small{font-size:9px}.brand img{width:35px;height:35px;border-radius:10px}.main-nav{display:none}.nav-download{font-size:12px;gap:7px}.nav-download .icon{width:15px}
  .mobile-anchors{display:flex;gap:8px;overflow-x:auto;padding:0 20px 10px;scrollbar-width:none}
  .mobile-anchors::-webkit-scrollbar{display:none}
  .mobile-anchors a{flex:0 0 auto;padding:7px 14px;border:1px solid var(--line);border-radius:999px;font-size:12px;color:var(--muted);background:#f9f7f0}
  .mobile-anchors a.is-strong{background:var(--ink);border-color:var(--ink);color:#fffaf4;font-weight:600}
  .hero{grid-template-columns:1fr;padding-block:34px 15px;gap:12px;min-height:0}.hero-copy{padding:0}.eyebrow{font-size:10px;margin-bottom:16px}.hero h1{font-size:clamp(39px,9.8vw,60px);line-height:1.35;margin-bottom:16px}.hero-description{font-size:13px;line-height:1.9;margin-bottom:22px}.hero-actions{gap:23px}.button{font-size:13px;min-height:48px;padding:11px 21px}.release-note{font-size:11px;margin-top:10px}.release-note span{padding:0 7px}.hero-assurances{font-size:10px;margin-top:21px;gap:8px 12px}.hero-assurances .icon{width:13px}
  .hero-art{height:574px;transform:none;width:100%;max-width:460px;margin:8px auto 0}.phone-frame{width:266px;transform:rotate(-4deg);border-width:4px;padding-inline:8px}.art-orbit{width:325px;height:325px;top:110px;right:5px;max-width:100%}.art-orbit::after{inset:-13px}.art-note{right:1px;top:18px;font-size:14px;z-index:-1}.reminder-slip{right:0;bottom:71px;padding:11px 12px;gap:8px}.reminder-slip b{font-size:10px}.reminder-slip small{font-size:8px}.hero-art figcaption{right:8px;bottom:8px;font-size:10px}.timetable{grid-template-rows:33px 57px 57px 20px 57px 57px}.phone-title h2{font-size:20px}
  .chapter-divider{padding:18px 0;font-size:11px}.chapter-divider span:last-child{display:none}.section{padding-block:49px}.section-heading{display:block;margin-bottom:25px}.section-heading h2{font-size:29px}.section-heading>p{font-size:12px;margin-top:15px}.mobile-break{display:block}.feature-grid{grid-template-columns:1fr;gap:12px}.feature-card{position:relative;padding:22px}.feature-top{position:absolute;top:26px;right:22px;flex-direction:column;gap:10px;margin:0}.feature-top>.icon{width:25px;height:25px}.feature-top>span{font-size:10px}.feature-card h3{font-size:23px;line-height:1.4;padding-right:50px;margin-bottom:13px}.feature-card h3 br{display:none}.feature-card>p{min-height:0;font-size:13px;max-width:36ch}.feature-detail{font-size:10px;padding-top:12px;margin-top:16px}.more-features{margin-top:9px}.more-features summary{font-size:12px}.more-features summary>span{display:none}.more-feature-grid{grid-template-columns:1fr 1fr;gap:20px}.more-feature-grid h3{font-size:18px}
  .preview-section{padding-block:49px 32px}.preview-controls{margin-bottom:15px;gap:8px}.preview-tabs{gap:0;padding:3px;flex:1;min-width:0}.preview-tabs button{padding:10px 6px;font-size:11px;min-height:42px;flex:1;white-space:nowrap}.preview-arrows{gap:5px}.preview-arrows button{width:36px;height:42px;border-radius:5px}.preview-arrows button:first-child{display:none}.preview-panel{grid-template-columns:1fr;min-height:0}.preview-story{padding:25px}.story-index{font-size:10px;margin-bottom:15px}.preview-story h3{font-size:28px;margin-bottom:13px}.preview-story h3 br{display:none}.preview-story p{font-size:13px;max-width:none}.story-foot{font-size:10px;margin-top:15px}.preview-canvas{padding:24px;min-height:372px}.app-sheet{max-width:350px;padding:18px 19px;transform:rotate(-1deg)}.sheet-greeting>b{font-size:21px}.daily-course{gap:9px;padding-block:11px}.course-label{font-size:7px}.preview-disclaimer{font-size:10px;line-height:1.7;text-align:left;margin-top:12px}.grades-sheet{padding:22px}.grade-chart{margin-top:5px}
  .privacy-section{gap:18px;padding-block:40px;align-items:flex-start}.privacy-symbol{width:43px;height:51px;margin-top:2px}.privacy-symbol>.icon{width:23px;height:23px}.privacy-section .eyebrow{font-size:9px;margin-bottom:10px}.privacy-section h2{font-size:24px}.privacy-section p:not(.eyebrow){font-size:12px}.privacy-section p br{display:none}.privacy-seal{display:none}
  .download-section{padding-block:44px 20px}.download-layout{grid-template-columns:1fr;gap:26px}.download-copy h2{font-size:35px;line-height:1.35;margin-bottom:16px}.download-copy>p:not(.eyebrow){font-size:12px}.download-version{margin-bottom:17px}.download-copy .compatibility-note{max-width:none;font-size:12px!important}.download-options{padding:22px}.download-options>h3{font-size:24px}.download-subtitle{font-size:10px;margin-bottom:20px}.download-count{font-size:10px;margin:-12px 0 18px}.download-count>b{font-size:14px}.version-stats{padding:10px 12px}.version-stats-title{font-size:10px}.version-stats-list>li{font-size:10px}.version-stats-note{font-size:9px}.package b{font-size:12px}.package>a{width:44px;height:44px}.package small{font-size:11px}.package{gap:9px}.recommend-badge{font-size:8px;padding:2px 4px;margin-left:3px}.install-help>summary{font-size:11px}.technical-details>summary{font-size:12px}.technical-details>summary>span{display:none}.technical-content{padding-top:10px}.app-specs{grid-template-columns:1fr 1fr;gap:18px}.app-specs>div:first-child{grid-column:1/-1}.technical-content code{font-size:10px}.hash-list dt{font-size:11px}.technical-content>p{font-size:11px}
  .updates-section{grid-template-columns:1fr;gap:25px}.updates-intro h2{font-size:29px}.updates-intro h2 br{display:none}.updates-intro>p:last-child{margin-top:12px}.updates-intro .eyebrow{font-size:10px;margin-bottom:13px}.latest-release{padding-left:15px}.release-heading h3{font-size:17px}.release-heading time{font-size:9px}.latest-release>p{font-size:12px}.updates-list summary{font-size:12px;gap:9px}.past-releases h3 small{display:block;margin:6px 0 0}.faq-section{grid-template-columns:1fr;gap:20px;padding-block:40px 48px}.faq-section h2{font-size:28px}.faq-list summary{font-size:12px;min-height:58px}.faq-list p{font-size:12px;padding-right:5px}
  .site-footer{flex-wrap:wrap;align-items:flex-start;padding-block:27px 110px;gap:25px}.footer-brand{font-size:25px}.footer-brand>span{font-size:10px}.site-footer>div{order:3;width:100%}.site-footer small{font-size:10px}.back-top{font-size:10px;margin-left:auto}.mobile-download:not([hidden]){position:fixed;bottom:0;left:0;right:0;z-index:20;background:#f9f7f1f7;border-top:1px solid #ded7c8;backdrop-filter:blur(12px);padding:10px 20px calc(10px + env(safe-area-inset-bottom));display:flex;align-items:center;justify-content:space-between;gap:15px;box-shadow:0 -6px 30px -15px #493d2826}.mobile-download>div>b{font:22px var(--serif)}.mobile-download>div>span{display:block;font-size:10px;color:var(--muted);margin-top:3px}.mobile-download>a{display:flex;align-items:center;gap:18px;background:var(--ink);color:#fffaf4;border-radius:5px;font-size:12px;padding:11px 18px;min-height:44px}.mobile-download .icon{width:17px;height:17px}
}
@media(max-width:360px){.container{width:calc(100% - 32px)}.hero h1{font-size:39px}.hero-description{font-size:12px}.hero-assurances{gap:8px;font-size:9px}.hero-actions{gap:17px}.hero-actions .button{padding-inline:17px}.hero-art{height:565px}.art-note{font-size:12px;right:0}.reminder-slip{right:-2px}.feature-card{padding:20px}.feature-card h3{font-size:21px}.feature-top{right:18px}.preview-canvas{padding:20px 14px}.preview-story{padding:22px}.app-sheet{padding-inline:16px}.preview-tabs button{font-size:10px}.download-options{padding:18px}.package b{font-size:11px}.recommend-badge{margin-left:0}}
/* 为倾斜手机和“功能示意”图注分别留出空间，避免图注压住手机底栏。 */
@media(max-width:900px){.hero-art{height:614px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}

/* 界面气质预览章节；下载信息仍对应已发布版本。 */
.next-design{padding-block:0 28px}
.next-design>details{background:#f1e8cc;border:1px solid #ddd0ac;border-radius:16px}
.next-design summary{display:flex;align-items:center;gap:18px;padding:20px 24px;list-style:none;cursor:pointer;min-height:88px}
.next-design summary::-webkit-details-marker{display:none}
.next-design summary>img{border-radius:12px;flex-shrink:0}
.next-design summary>span:first-of-type{flex:1;min-width:0}
.next-design summary b{font:600 19px/1.5 var(--serif)}
.next-design summary small{display:block;font-size:12px;color:var(--muted);margin-top:3px}
.next-design .pending-badge{white-space:nowrap;background:#fff9e8;color:#6c5323}
.next-design details[open]>summary{border-bottom:1px solid #ddd0ac}
.next-design details[open]>summary>.icon{transform:rotate(90deg)}
.next-design-content{display:grid;grid-template-columns:.85fr 1.25fr;gap:36px;padding:36px}
.next-design-copy{align-self:center;min-width:0}
.next-design-copy h2{font-size:31px;margin-bottom:20px}
.next-design-copy>p,.next-design-copy li{font-size:13px;color:var(--muted);line-height:1.9}
.next-design-copy ul{list-style:none;margin:24px 0;padding:0}
.next-design-copy li+li{margin-top:15px}
.next-design-copy li b{display:block;color:var(--ink);font-weight:600}
.next-design-copy .next-version-note{font-size:11px;padding-top:18px;border-top:1px solid #daceb1}
/* 界面气质预览：登录/看板套用「网点 + 角度 + 浮标签」三件套。 */
.shot-figure{min-width:0;margin:0}
.shot-stage{position:relative;display:flex;align-items:center;justify-content:center;padding:34px 22px 28px;background:#e4e7da;background-image:radial-gradient(#a5ad962e .7px,transparent .7px);background-size:9px 9px;border-radius:18px;overflow:hidden}
.shot-stage .art-note{top:14px;right:12px;font-size:15px;z-index:2}
.shot-orbit{top:auto;bottom:-40px;right:-40px;width:220px;height:220px;max-width:none;background:#d5dcc8}
.shot-orbit::after{inset:-12px}
.shot-frame{width:100%;max-width:210px;height:auto;border:4px solid #39372f;border-radius:22px;box-shadow:0 18px 30px -22px #302e2966;position:relative;z-index:1}
.shot-tilt-a{transform:rotate(-3deg)}
.shot-tilt-b{transform:rotate(2.5deg)}
.shot-figure figcaption{margin-top:12px;text-align:center;font-size:11px;color:var(--muted)}
.earlier-releases{border-top:1px solid var(--line);margin-top:8px}
.earlier-releases>summary{min-height:52px;font-size:12px}
.earlier-releases-body{padding-bottom:8px}
.earlier-releases-body>article{border-left:2px solid var(--line);padding-left:20px;margin-bottom:18px}
.earlier-releases-body>details{border-top:1px solid var(--line);margin-top:4px}
.next-shots{display:grid;grid-template-columns:1fr 1fr;gap:22px;align-items:center;min-width:0}
@media(max-width:900px){.next-design-content{grid-template-columns:1fr;gap:26px;padding:28px}.next-shots{max-width:530px;margin-inline:auto;gap:16px}.next-design-copy h2{font-size:28px}.shot-stage{padding:28px 16px 22px}.shot-frame{max-width:190px}.shot-stage .art-note{font-size:13px;top:10px;right:8px}}
@media(max-width:520px){.next-design summary{padding:17px 15px;gap:10px;flex-wrap:wrap}.next-design summary>img{width:40px;height:40px}.next-design summary b{font-size:16px}.next-design summary small{font-size:11px}.next-design summary .pending-badge{margin-left:50px}.next-design summary>.icon{margin-left:auto;width:18px}.next-design-content{padding:22px 18px}.next-shots{gap:12px}.shot-frame{border-width:3px;border-radius:14px;max-width:170px}.shot-figure figcaption{font-size:10px}}

.release-dl-count{font-size:11px;font-weight:400;color:var(--muted);margin-left:8px}