:root{color-scheme:light;--ink:#1d1d1f;--muted:#6e6e73;--blue:#0066cc}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;background:#fff;color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Helvetica Neue","PingFang SC","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}a:focus-visible{outline:3px solid #0085ff;outline-offset:6px}a:hover{color:var(--blue)}.wrap{width:min(1120px,calc(100% - 64px));margin-inline:auto}.skip{position:fixed;left:20px;top:-100px;background:#fff;padding:12px;z-index:10}.skip:focus{top:10px}header{position:sticky;top:0;z-index:5;background:#ffffffdc;backdrop-filter:blur(20px);border-bottom:1px solid #e8e8ed}nav{height:72px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:11px;font-size:16px;font-weight:650;letter-spacing:.03em}.nav-links{display:flex;align-items:center;gap:32px;font-size:13px}.nav-shop{background:#f5f5f7;border-radius:24px;padding:9px 17px}.hero{min-height:665px;padding-block:95px 100px;display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:26px}.eyebrow{font-size:11px;font-weight:650;letter-spacing:.16em;color:var(--muted);margin:0 0 24px}.hello{font-size:24px;font-weight:600;letter-spacing:-.03em;margin:0 0 18px}h1{font-size:clamp(38px,4.2vw,58px);letter-spacing:-.045em;line-height:1.18;margin:0 0 26px;font-weight:700}.blue{color:var(--blue)}.intro{font-size:17px;line-height:1.85;color:var(--muted);margin:0 0 29px}.button{display:inline-flex;gap:23px;border-radius:28px;padding:14px 23px;background:#0071e3;color:#fff;font-size:14px}.button:hover{background:#0077ed;color:white}.hero-copy>.text-link{margin-left:21px}.text-link{font-size:15px;color:var(--blue)}.workspace{height:400px;position:relative;perspective:1000px}.orbit{position:absolute;inset:-30px -15px;border-radius:50%;background:radial-gradient(ellipse,#e6effa 0%,#f7f9fc 47%,transparent 69%)}.code-window{position:absolute;top:38px;left:25px;right:0;background:#fff;border:1px solid #e4e7eb;border-radius:17px;box-shadow:0 30px 70px #25375a17,0 5px 10px #25375a08;transform:rotate(-4deg)}.window-bar{padding:17px 19px;display:flex;justify-content:space-between;font:11px monospace;color:#98989d;border-bottom:1px solid #ededf1}.dots{letter-spacing:3px;color:#c8c8ce}.code-body{padding:24px 24px 16px;font:14px/1.6 "SFMono-Regular",Consolas,monospace;white-space:nowrap}.code-body p{margin:7px 0}.code-comment{color:#8c919a;font-size:12px}.syntax{color:#0066cc}.string{color:#23876d}.indent{padding-left:22px}.cursor{display:inline-block;width:7px;height:16px;background:#0071e3;vertical-align:middle;margin-left:5px}.window-foot{padding:12px 20px;background:#fafafa;border-radius:0 0 17px 17px;display:flex;justify-content:space-between;font-size:10px;color:#80838b}.window-foot i{display:inline-block;width:6px;height:6px;background:#36a574;border-radius:50%;margin-right:5px}.floating-note{position:absolute;bottom:4px;left:0;background:#ffffffed;box-shadow:0 15px 40px #25375a14;border:1px solid #eee;border-radius:17px;padding:17px;display:flex;gap:13px;align-items:center;transform:rotate(3deg)}.note-icon{background:#edf4ff;color:#0071e3;font-size:25px;border-radius:11px;padding:7px 12px}.floating-note strong{font-size:14px}.floating-note small{display:block;font-size:8px;color:#888;letter-spacing:.17em;margin-top:7px}.keycap{position:absolute;right:7px;bottom:15px;background:linear-gradient(145deg,#fff,#e5e6e9);border:1px solid #dddfe4;border-bottom:7px solid #d5d7dc;box-shadow:10px 20px 30px #1d1d1f15;border-radius:20px;width:89px;height:90px;font-size:37px;padding:7px 17px;transform:rotate(12deg)}.keycap span{display:block;font-size:9px;letter-spacing:2px}.canvas-label{position:absolute;bottom:-42px;right:10px;font-size:9px;letter-spacing:.15em;color:#aaa}.projects{padding-top:35px;padding-bottom:100px}.section-title{display:flex;justify-content:space-between;align-items:end;margin-bottom:32px}.section-title .eyebrow{margin-bottom:12px}h2{font-size:36px;letter-spacing:-.04em;line-height:1.25;margin:0}.section-title>p{color:var(--muted);font-size:14px;margin-bottom:4px}.project-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}.project{border-radius:28px;padding:34px 36px 0;overflow:hidden;min-height:475px;position:relative}.guide{background:#f5f5f7}.shop{background:#edf4fb}.project-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:23px}.pill{font-size:10px;padding:6px 10px;border:1px solid #d6d9df;border-radius:20px;color:#656971}.number{font-size:12px;color:#a1a6b0;font-family:monospace}h3{font-size:29px;letter-spacing:-.03em;margin:0 0 13px}.project>p{font-size:14px;color:var(--muted);line-height:1.8;margin:0 0 18px}.guide-art{margin:38px 0 -15px;transform:rotate(-5deg)}.search{background:white;border-radius:12px;box-shadow:0 5px 20px #1d1d1f05;padding:15px 16px;color:#92929b;font-size:13px;display:flex;align-items:center;gap:12px}.search>span{font-size:24px;line-height:16px}kbd{margin-left:auto;background:#f5f5f7;padding:3px 7px;border-radius:5px}.tiles{display:flex;gap:14px;margin:18px 8px}.tile{height:113px;flex:1;border-radius:18px;box-shadow:0 8px 15px #1d1d1f0a;display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:28px;font-weight:500}.tile small{font-size:10px;margin-top:9px;font-weight:400}.tile-dark{background:#25262b;color:white}.tile-blue{background:#0071e3;color:white}.tile-white{background:#fff}.gift-art{height:180px;position:relative;margin-top:20px}.gift-card,.gift-back{position:absolute;width:280px;height:156px;border-radius:18px;left:50%;top:8px;margin-left:-140px}.gift-back{background:#a8c9ed;transform:rotate(10deg) translate(12px,2px)}.gift-card{background:linear-gradient(125deg,#fff,#f4f8ff);border:1px solid #ffffff;box-shadow:0 16px 30px #466c9a20;transform:rotate(-7deg);padding:21px}.gift-symbol{font-size:40px;color:#0071e3;line-height:1}.gift-title{display:block;font-size:23px;letter-spacing:-.03em;margin-top:17px}.gift-title small{font-size:9px;display:block;color:#777;margin-top:6px;letter-spacing:.08em}.gift-arrow{position:absolute;right:22px;top:20px;color:#77889b}.project>.product-note{font-size:10px;line-height:1.6;margin:12px 0 22px}.about{display:grid;grid-template-columns:1fr 1.4fr;gap:85px;padding-block:50px 100px;align-items:center}.about-mark{font-size:140px;letter-spacing:-.13em;font-weight:750;background:#f5f5f7;border-radius:50%;width:270px;height:270px;text-align:center;line-height:210px;color:#222;position:relative}.about-mark>span{color:#0071e3}.about-mark small{display:block;position:absolute;bottom:47px;left:0;right:0;font-size:10px;letter-spacing:.1em;line-height:1}.about-copy h2{margin-bottom:25px}.about-copy>p:not(.eyebrow){font-size:15px;line-height:1.9;color:var(--muted)}.tags{display:flex;gap:9px;margin-top:25px}.tags span{font-size:11px;padding:7px 13px;background:#f5f5f7;border-radius:20px}.contact{border-top:1px solid #e5e5ea;padding-block:60px;display:flex;align-items:center;justify-content:space-between;gap:20px}.contact .eyebrow{margin-bottom:13px}.contact p:not(.eyebrow){color:var(--muted);font-size:14px}.mail{font-size:20px;color:var(--blue);letter-spacing:-.02em}.mail span{margin-left:15px}.info{border-top:1px solid #e5e5ea;padding-block:38px;display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:35px}.info h3{font-size:12px;letter-spacing:0}.info p,.info a{font-size:11px;line-height:1.9;color:var(--muted)}.info a{display:inline-block;color:var(--blue);margin-right:12px}footer{border-top:1px solid #e5e5ea;padding-block:23px 30px;font-size:10px;color:#86868b;display:flex;justify-content:space-between;gap:18px}.footer-note{margin-left:12px}.records{display:flex;gap:15px;flex-wrap:wrap}.records a{display:flex;align-items:center;gap:5px}@media(max-width:850px){.wrap{width:calc(100% - 40px)}.hero{gap:0;padding-block:65px;min-height:auto}.workspace{transform:scale(.85);transform-origin:center right}.code-body{font-size:11px}.floating-note{left:5px}.about{gap:35px}.project{padding-inline:25px}.contact{align-items:start;flex-direction:column}.info{gap:20px}footer{flex-direction:column}}@media(max-width:600px){nav{height:64px}.brand{font-size:13px;gap:8px}.brand img{width:25px;height:25px}.nav-links{gap:16px;font-size:12px}.nav-links>a:nth-child(3){display:none}.nav-shop{padding:7px 12px}.hero{grid-template-columns:1fr;padding-top:50px;padding-bottom:35px}.hello{font-size:21px}h1{font-size:42px}.intro{font-size:15px}.hero-copy>.text-link{font-size:13px;margin-left:16px}.workspace{transform:none;height:350px;margin-top:38px}.code-window{left:13px;right:8px;top:20px}.code-body{font-size:13px;padding:18px}.floating-note{bottom:0}.keycap{bottom:10px;right:5px;width:73px;height:76px;font-size:29px}.canvas-label{display:none}.section-title{display:block}.section-title>p{margin-top:12px}h2{font-size:29px}.project-grid{grid-template-columns:1fr}.projects{padding-bottom:45px}.project{min-height:450px;padding-top:27px}.about{grid-template-columns:1fr;gap:30px;padding-block:30px 55px}.about-mark{width:150px;height:150px;font-size:80px;line-height:120px;margin:auto}.about-mark small{font-size:7px;bottom:24px}.about-copy .eyebrow{margin-bottom:15px}.contact{padding-block:35px}.mail{font-size:18px;overflow-wrap:anywhere}.info{grid-template-columns:1fr;gap:22px}.info h3{margin-bottom:5px}.info p{margin-block:6px}.records{gap:10px}footer{line-height:1.8}.orbit{inset:0}.desktop{display:none}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* AI 实战派社区 */
.community{padding-bottom:80px}.community-panel{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:56px;align-items:center;padding:52px;background:#f4f8fc;border:1px solid #e3edf6;border-radius:28px}.community-copy .eyebrow{color:#4f6a86;margin-bottom:26px}.community-heading{display:flex;align-items:center;gap:18px}.community-logo{border-radius:20px;flex-shrink:0;object-fit:contain}.community-kicker{font-size:12px;color:var(--muted);margin:0 0 8px}.community-heading h2{font-size:32px}.community-lead{font-size:21px;font-weight:600;line-height:1.6;margin:26px 0 12px}.community-description{font-size:15px;color:var(--muted);line-height:1.9;margin:0}.community-topics{display:flex;flex-wrap:wrap;gap:9px;margin:22px 0 28px}.community-topics span{font-size:12px;color:#345b80;background:#e5eff9;border-radius:20px;padding:7px 12px}.community-hint{font-size:12px;line-height:1.8;color:var(--muted);margin:16px 0 0}.community-join{text-align:center;min-width:0}.community-poster{display:block;max-width:330px;margin:auto;border-radius:22px;overflow:hidden;box-shadow:0 12px 36px #244b7410}.community-poster img{display:block;width:100%;height:auto}.community-join>p{font-size:12px;line-height:1.8;color:var(--muted);margin:17px 0 10px}.community-join>.text-link{font-size:13px}
@media(max-width:850px){.community-panel{gap:28px;padding:30px}.community-heading{gap:12px}.community-logo{width:66px;height:66px;border-radius:15px}.community-heading h2{font-size:25px}.nav-links{gap:22px}}
@media(max-width:600px){.community{padding-bottom:35px}.community-panel{grid-template-columns:1fr;padding:26px 20px;gap:28px}.community-copy .eyebrow{font-size:9px;margin-bottom:22px}.community-heading h2{font-size:23px}.community-logo{width:60px;height:60px}.community-lead{font-size:19px;margin-top:22px}.community-description{font-size:14px}.community-poster{max-width:300px}.nav-links{gap:12px}.nav-links>a[href="#contact"],.nav-links>a[href="#about"]{display:none}.nav-links>a[href="#community"]{display:inline}}

/* 关注入口按需展开，让社区保持视觉优先级 */
.mobile-qr-action{display:none}
.social{padding-block:0 65px}.social .section-title{margin-bottom:14px}.social h2{font-size:30px}.social-intro{font-size:15px;line-height:1.9;color:var(--muted);margin:0 0 28px}
.social-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;align-items:start}.social-card{border:1px solid #e5e5ea;border-radius:18px;overflow:hidden}.social-card summary{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:24px;cursor:pointer;list-style:none}.social-card summary::-webkit-details-marker{display:none}.social-card summary:focus:not(:focus-visible){outline:none}.social-card summary:focus-visible{outline:3px solid #0085ff;outline-offset:-4px;border-radius:18px}.social-card h3{font-size:18px;margin:0 0 8px}.social-card summary p{font-size:12px;line-height:1.6;color:var(--muted);margin:0}.social-toggle{flex-shrink:0;width:24px;height:24px;border-radius:50%;background:#f0f2f5;color:#656971;text-align:center;line-height:24px}.social-toggle::after{content:"+"}.social-card[open] .social-toggle::after{content:"−"}.social-reveal{padding:0 24px 24px;text-align:center;border-top:1px solid #eee}.social-qr{display:flex;align-items:center;justify-content:center;height:260px;margin:20px 0 16px}.social-qr img{display:block;max-width:100%;width:auto;height:auto;max-height:100%;object-fit:contain}.social-reveal>.text-link{font-size:13px}.social-reveal>small{display:block;font-size:11px;line-height:1.8;color:var(--muted);margin-top:12px}.social-community{font-size:14px;line-height:1.9;margin:22px 0 0;color:var(--muted)}.social-community a{margin-left:10px;font-size:14px}
@media(max-width:850px){.social-grid{gap:12px}.social-card summary{padding:20px 16px}.social-card h3{font-size:16px}.social-reveal{padding-inline:16px}.social-qr{height:230px}}
@media(max-width:600px){.mobile-qr-action{display:inline-flex}.community-join>.mobile-qr-action{display:inline-block}.social{padding-bottom:40px}.social h2{font-size:26px}.social-intro{font-size:14px}.social-grid{grid-template-columns:1fr;gap:12px}.social-card summary{padding:20px}.social-reveal{padding-inline:20px}.social-qr{height:280px}.social-community a{display:inline-block;margin-left:0}}

/* Codex 回电站：独占一行，移动端上下排列 */
.codex-reset{grid-column:1/-1;background:#edf5ef;min-height:320px;padding:34px 36px;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:36px;align-items:center}
.reset-copy>p{font-size:14px;color:var(--muted);line-height:1.8;margin:0 0 18px}.reset-copy .project-top{max-width:300px}
.reset-art{display:flex;flex-direction:column;align-items:center;gap:18px;text-align:center;color:#285443;padding:14px 0}.reset-label{font-size:10px;letter-spacing:.16em}.reset-battery{display:flex;gap:7px;padding:9px;width:180px;height:62px;border:3px solid #285443;border-radius:12px;position:relative}.reset-battery::after{content:"";position:absolute;right:-10px;top:18px;width:6px;height:20px;background:#285443;border-radius:0 3px 3px 0}.reset-battery i{flex:1;background:#78ad8c;border-radius:3px}.reset-battery i:last-child{background:#d1e4d7}.reset-art strong{font-size:26px;line-height:1.4;letter-spacing:-.03em}.reset-caption{font-size:11px;color:#4f6e5c}
@media(max-width:600px){.codex-reset{grid-template-columns:1fr;padding:27px 25px;gap:30px}.reset-copy .project-top{max-width:none}.reset-art{padding-bottom:8px}}

/* 扩大原有链接的点击范围，保留原生键盘与新标签页行为 */
.project .text-link::after{content:"";position:absolute;inset:0;z-index:1;border-radius:28px}
.project .text-link{display:inline-flex;align-items:center;gap:8px;font-weight:600;text-decoration:underline;text-underline-offset:5px;text-decoration-color:transparent}
.project:has(.text-link:focus-visible){outline:3px solid var(--blue);outline-offset:4px}
.project .text-link:focus-visible{outline:none;text-decoration-color:currentColor}
@media(hover:hover) and (pointer:fine){
  .project{transition:transform .2s ease,box-shadow .2s ease}
  .project:hover{transform:translateY(-5px);box-shadow:0 14px 32px #25375a16}
  .project:hover .text-link{text-decoration-color:currentColor}
  .project .text-link span{transition:transform .2s ease}
  .project:hover .text-link span{transform:translate(2px,-2px)}
}
@media(prefers-reduced-motion:reduce){
  .project,.project .text-link span{transition:none}
  .project:hover,.project:hover .text-link span{transform:none}
}

/* 悬停只提示可点击，二维码仍由原生 details 点击展开 */
@media(hover:hover) and (pointer:fine){
  .social-card summary{transition:background-color .18s ease}
  .social-toggle{transition:background-color .18s ease,color .18s ease}
  .social-card summary:hover{background:#f5f5f7}
  .social-card summary:hover .social-toggle{background:#dcecff;color:var(--blue)}
}
@media(prefers-reduced-motion:reduce){
  .social-card summary,.social-toggle{transition:none}
}

/* 实践与突破：开放轨道、双生核心、成果节点 */
.practice-emblem{margin:0;width:100%;max-width:360px;position:relative;overflow:hidden;border-radius:32px;padding:24px;background:radial-gradient(ellipse at 45% 38%,#12365a 0%,#091a30 52%,#070f1e 100%);border:1px solid #243850;box-shadow:0 20px 48px #132c5217;color:#fff}
.practice-topline{display:flex;justify-content:space-between;align-items:center;gap:12px;font:9px/1.4 monospace;letter-spacing:.1em;color:#a4bdd3}.practice-status{font-size:10px;letter-spacing:.06em;white-space:nowrap}.practice-status::before{content:"";display:inline-block;width:5px;height:5px;border-radius:50%;background:#78d6cf;margin-right:6px}
.practice-emblem svg{display:block;width:100%;height:auto;margin:8px auto 0;overflow:visible}.practice-emblem figcaption{text-align:center}.practice-emblem figcaption strong{display:block;font-size:19px;letter-spacing:.04em;font-weight:550}.practice-emblem figcaption>span{display:block;font-size:11px;color:#a4bdd3;margin-top:10px;letter-spacing:.08em}
.practice-motion{display:block;margin:20px auto 0;padding:6px 12px;border:1px solid #46617b;border-radius:20px;background:transparent;color:#b9cde0;font-family:inherit;font-size:10px;cursor:pointer}.practice-motion:hover{background:#ffffff12;color:#fff}.practice-motion:focus-visible{outline:2px solid #79dfff;outline-offset:4px}
.practice-flow{animation:practice-travel 5s linear infinite}.practice-result{transform-box:fill-box;transform-origin:center;animation:practice-pulse 5s ease-out infinite}.motion-paused .practice-flow,.motion-paused .practice-result{animation-play-state:paused}
@keyframes practice-travel{from{stroke-dashoffset:8}to{stroke-dashoffset:-92}}
@keyframes practice-pulse{0%,60%,100%{opacity:.25;transform:scale(.9)}80%{opacity:.85;transform:scale(1.15)}}
@media(max-width:600px){.practice-emblem{max-width:300px;margin-inline:auto;padding:22px}.practice-emblem figcaption strong{font-size:18px}}
@media(prefers-reduced-motion:reduce){.practice-flow,.practice-result{animation:none}.practice-motion{display:none}}

/* 数字工作台：纸面留白 × 深蓝实验室 */
:root{--ink:#142333;--muted:#627181;--blue:#0868ce}
body{background:#fbfcfe}
header{background:#fbfcfeee;border-bottom-color:#dce5ef}
.eyebrow{font-family:"SFMono-Regular",Consolas,monospace;letter-spacing:.18em}
.hero{position:relative}
.hero::before{content:"";position:absolute;inset:0;z-index:-1;background-image:linear-gradient(#2764a008 1px,transparent 1px),linear-gradient(90deg,#2764a008 1px,transparent 1px);background-size:40px 40px;mask-image:linear-gradient(90deg,transparent,#000 55%,transparent)}
.hero-copy .eyebrow{display:flex;align-items:center;gap:12px;color:#48617a}.hero-copy .eyebrow::before{content:"";width:26px;height:2px;background:#e9a440}
h1{font-size:clamp(40px,4.3vw,62px);letter-spacing:-.055em}
.hero-copy .hello{font-size:20px;font-weight:500;color:#52667a}
.section-title{border-top:1px solid #dce5ef;padding-top:26px}
.section-title .eyebrow{color:#48617a}
.project{border:1px solid #dee7ef}
.about{border-top:1px solid #dce5ef;padding-top:70px}
.about-copy h2{font-family:"Songti SC","STSong","Noto Serif CJK SC",serif;font-weight:700;line-height:1.45;letter-spacing:-.035em}
.social-card{background:#fff}
/* 社区成为全站的深色视觉锚点；二维码区域保留纯净白底 */
.community-panel{position:relative;isolation:isolate;overflow:hidden;background:radial-gradient(ellipse at 12% 0%,#173c5e,transparent 65%),#091a2e;border:1px solid #294b68;color:#f1f7ff;box-shadow:0 24px 60px #163b6512}
.community-panel::before{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;background-image:linear-gradient(#7ac9ff08 1px,transparent 1px),linear-gradient(90deg,#7ac9ff08 1px,transparent 1px);background-size:44px 44px;mask-image:linear-gradient(120deg,#000,transparent 65%)}
.community-panel::after{content:"";position:absolute;left:8%;top:0;width:32%;height:2px;background:linear-gradient(90deg,transparent,#7bdfff,transparent);pointer-events:none;opacity:.65;transform:translateX(0)}
.community-copy .eyebrow{color:#86c7ec}.community-kicker,.community-description,.community-hint,.community-join>p{color:#adc1d4}
.community-heading h2{color:#fff;letter-spacing:-.035em}.community-logo{border:1px solid #577995;box-shadow:0 8px 28px #0003}
.community-lead{font-size:24px;letter-spacing:-.02em;color:#f0f7ff}
.community-topics span{background:#153651;color:#b6e3ff;border:1px solid #30536d}
.community-topics span:last-child{color:#f2c87e;background:#3b3426;border-color:#66543a}
.community-poster{background:#fff;box-shadow:0 18px 42px #0003;outline:1px solid #ffffff25;outline-offset:8px}
.community .text-link{color:#96d8ff}.community .button{background:#d8f0ff;color:#123b5a}
.community.is-revealed .community-copy{animation:community-arrive .8s ease-out both}
.community.is-revealed .community-panel::after{animation:community-trace 2.2s ease-out both}
@keyframes community-arrive{from{opacity:.35;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}
@keyframes community-trace{from{transform:translateX(-110%);opacity:0}to{transform:translateX(150%);opacity:.75}}
@media(hover:hover) and (pointer:fine){
.community-panel{transition:border-color .3s ease,box-shadow .3s ease}
.community-panel:hover{border-color:#5288af;box-shadow:0 24px 65px #163b6524}
.community-logo{transition:transform .3s ease,box-shadow .3s ease}
.community-panel:hover .community-logo{transform:translateY(-3px);box-shadow:0 10px 30px #4caeff22}
.community-topics span{transition:border-color .2s ease}.community-topics span:hover{border-color:#8bc8ef}
}
@media(max-width:600px){.hero::before{inset:0}.community-lead{font-size:20px}.community-heading h2{font-size:23px}.about{padding-top:40px}.section-title{padding-top:20px}}
@media(prefers-reduced-motion:reduce){.community.is-revealed .community-copy,.community.is-revealed .community-panel::after{animation:none}.community-panel,.community-logo,.community-topics span{transition:none}.community-panel:hover .community-logo{transform:none}}

/* 首屏代码卡：光标慢闪，代码始终完整可读 */
.cursor{animation:code-caret 1.4s steps(1,end) infinite}
@keyframes code-caret{50%{opacity:0}}
@media(prefers-reduced-motion:reduce){.cursor{animation:none}}