@font-face{font-family:Instrument;src:url('/assets/instrument-sans.woff2') format('woff2');font-weight:400 700;font-display:swap}
:root{--paper:#f8fafb;--white:#fff;--ink:#172b3a;--muted:#526575;--blue:#275bea;--line:#dce3e8;--sky:#e5eff7;--peach:#f5dfcf;--sage:#e6eee1;--radius:20px;--max:1200px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;background:var(--paper);color:var(--ink);font-family:Instrument,'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}button,input,textarea{font:inherit}button,a,input,summary,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer}a{color:inherit;text-underline-offset:4px}button{color:inherit}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible,textarea:focus-visible{outline:3px solid var(--blue);outline-offset:4px}button:disabled{cursor:wait}svg{display:block}h1,h2,h3,h4,p{margin-top:0}h1,h2,h3,h4{line-height:1.16}p:last-child{margin-bottom:0}h2{font-size:clamp(30px,3vw,44px);font-weight:600;letter-spacing:-.045em}h3{font-weight:600;letter-spacing:-.02em}.wrap{width:calc(100% - 80px);max-width:var(--max);margin-inline:auto}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}[hidden]{display:none!important}
.site-header{height:104px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);gap:30px}.brand{display:inline-flex;gap:11px;align-items:center;text-decoration:none;font-size:25px;font-weight:650;letter-spacing:-1px;min-height:44px;white-space:nowrap}.brand-light{font-weight:450}.brand-period{color:var(--blue)}.brand-mark{width:28px;height:28px;fill:var(--blue)}.site-nav{display:flex;align-items:center;gap:30px;font-size:14px;font-weight:550}.site-nav a{display:flex;min-height:44px;align-items:center;text-decoration:none}.site-nav a:hover,.text-link:hover{color:var(--blue)}.language-link{border-left:1px solid var(--line);padding-left:26px}.menu-toggle{display:none;background:none;border:1px solid var(--line);border-radius:10px;padding:10px 16px;min-height:44px}.skip-link{position:fixed;z-index:50;left:16px;top:-100px;padding:12px 20px;background:var(--ink);color:white;border-radius:10px}.skip-link:focus{top:12px}
.hero{display:grid;grid-template-columns:1.05fr .95fr;gap:72px;align-items:center;padding-block:68px 92px}.hero h1{font-size:clamp(60px,6.2vw,88px);letter-spacing:-.068em;font-weight:600;line-height:1.02;margin:0 0 30px}.hero-description{max-width:470px;font-size:18px;line-height:1.7;color:var(--muted);margin-bottom:30px}.hero-actions{display:flex;align-items:center;gap:26px;flex-wrap:wrap}.button{min-height:48px;display:inline-flex;align-items:center;justify-content:center;gap:16px;padding:12px 21px;border-radius:10px;font-size:14px;font-weight:600;text-decoration:none;border:1px solid var(--line);background:white}.button-primary{background:var(--blue);border-color:var(--blue);color:white}.button-primary:hover{background:#1847cd}.button svg,.text-link svg{width:19px;height:19px}.text-link{min-height:44px;display:inline-flex;align-items:center;gap:14px;font-size:14px;font-weight:600}.independent-note{font-size:12px;line-height:1.6;color:var(--muted);max-width:370px;margin:24px 0 16px}.rollout-note{display:flex;align-items:center;gap:9px;font-size:12px;color:var(--muted)}.rollout-note span{width:6px;height:6px;border-radius:50%;background:#367543}
.demo-frame{background:var(--sky);border-radius:26px;padding:28px 30px 22px;box-shadow:0 20px 60px #172b3a0b;min-width:0;position:relative}.demo-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}.demo-badge{display:inline-flex;align-items:center;gap:7px;background:#fff;padding:5px 11px;border-radius:20px;font-size:11px;font-weight:600}.live-dot{width:6px;height:6px;background:var(--blue);border-radius:50%}.demo-glyph{font-size:34px;line-height:1;color:var(--blue)}.demo-frame h2{font-size:33px;line-height:1.1;letter-spacing:-.045em;margin-bottom:12px}.demo-intro{font-size:13px;color:var(--muted);max-width:300px;margin-bottom:20px}.duration-control,.demo-tasks{border:0;margin:0;padding:0;min-width:0}.duration-control legend{font-size:12px;font-weight:600;margin-bottom:8px}.duration-buttons{display:flex;background:#d5e3ef;border-radius:10px;padding:4px;gap:4px}.duration-buttons button{flex:1;min-height:44px;padding:8px 4px;border:0;background:transparent;border-radius:7px;font-size:14px;font-weight:600}.duration-buttons button span{font-size:11px;font-weight:450}.duration-buttons button[aria-pressed=true]{background:white;box-shadow:0 2px 5px #172b3a10}.session-stages{display:grid;grid-template-columns:1fr 1.45fr 1fr;gap:6px;margin-block:14px 18px}.stage{border-radius:10px;display:flex;flex-direction:column;gap:4px;padding:13px 12px;background:#f8fbfd;min-width:0}.stage>span:first-child{font-size:11px;min-height:18px;white-space:nowrap}.stage strong{font-size:28px;line-height:1.1;letter-spacing:-.05em;font-weight:550}.stage>span:last-child{font-size:10px}.stage-focus{background:var(--blue);color:white}.stage-recall{background:#ccdae7}.demo-tasks{display:flex;flex-direction:column;gap:0}.demo-tasks label{display:flex;align-items:center;gap:9px;font-size:12px;min-height:44px;cursor:pointer}.demo-tasks input{width:18px;height:18px;margin:0;accent-color:var(--blue);flex-shrink:0}.demo-tasks label:has(input:checked) span{text-decoration:line-through;color:var(--muted)}.demo-progress{display:flex;align-items:center;gap:12px;margin-top:7px}.demo-progress progress{appearance:none;height:4px;border:0;border-radius:4px;flex:1;min-width:0;width:100%;background:#c5d6e4;overflow:hidden}.demo-progress progress::-webkit-progress-bar{background:#c5d6e4}.demo-progress progress::-webkit-progress-value{background:var(--blue)}.demo-progress progress::-moz-progress-bar{background:var(--blue)}.demo-progress span{font-size:10px;white-space:nowrap}.demo-note{font-size:10px;color:var(--muted);margin-top:14px}
.library{padding-block:72px 0;border-top:1px solid var(--line)}.section-intro{display:grid;grid-template-columns:1.1fr 1fr;gap:90px;align-items:end;margin-bottom:34px}.section-intro h2{margin:0;max-width:550px}.section-intro>p{color:var(--muted);font-size:15px;max-width:460px;line-height:1.7}.library-controls{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}.filter-group{display:flex;gap:6px;flex-wrap:wrap}.filter-button{min-height:44px;border:1px solid transparent;border-radius:8px;padding:8px 16px;background:transparent;font-size:13px;font-weight:550}.filter-button[aria-pressed=true]{background:var(--ink);color:white}.filter-button:hover:not([aria-pressed=true]){background:#eaf0f4}.search-box{display:flex;align-items:center;gap:8px;border:1px solid var(--line);background:white;border-radius:9px;padding:0 12px;min-height:44px;width:260px}.search-box svg{height:18px;width:18px;color:var(--muted);flex-shrink:0}.search-box input{border:0;background:transparent;width:100%;min-width:0;font-size:12px;min-height:44px;color:var(--ink)}.search-box:focus-within{outline:2px solid var(--blue);outline-offset:3px}.search-box input:focus{outline:none}.search-box input::placeholder{color:var(--muted)}.results-count{font-size:12px;color:var(--muted);margin:18px 0}.case-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:30px 24px;align-items:start}.case-card{min-width:0;background:white;border-radius:16px;overflow:hidden;border:1px solid #e1e7ed}.case-sketch{position:relative;height:216px;padding:24px 24px 35px;display:flex;align-items:center;justify-content:center;overflow:hidden}.tone-sky{background:var(--sky)}.tone-sage{background:var(--sage)}.tone-peach{background:var(--peach)}.tone-lavender{background:#e8e6f4}.tone-butter{background:#f2edcf}.tone-rose{background:#f0e0df}.sketch-label{position:absolute;bottom:12px;left:24px;font-size:10px;color:#53636e}.sketch-content{width:100%;max-width:280px}.case-body{padding:22px 22px 0}.case-meta{display:flex;justify-content:space-between;gap:10px;align-items:center;font-size:11px;color:var(--muted);margin-bottom:12px}.idea-label{border:1px solid #d5dee5;border-radius:5px;padding:2px 7px;font-size:10px;white-space:nowrap}.case-body h3{font-size:23px;line-height:1.2;letter-spacing:-.035em;min-height:56px;margin-bottom:11px}.case-desc{font-size:13px;line-height:1.7;color:var(--muted);min-height:67px;margin-bottom:20px}.case-actions{position:relative;border-top:1px solid var(--line)}.case-actions summary{min-height:56px;display:flex;align-items:center;width:45%;font-size:12px;font-weight:550;cursor:pointer;list-style:none}.case-actions summary::-webkit-details-marker{display:none}.case-actions summary:after{content:'+';margin-left:10px;font-size:18px;font-weight:400}.case-actions details[open] summary:after{content:'−'}.copy-button{position:absolute;right:0;top:5px;height:46px;background:none;display:flex;align-items:center;gap:6px;border:0;font-size:11px;padding:8px 0 8px 8px;font-weight:550}.copy-button svg{width:15px;height:15px}.copy-button:hover{color:var(--blue)}.prompt-detail{padding-block:4px 22px;font-size:13px;line-height:1.65}.verification-note{color:#684e36;background:#fbf4e9;padding:10px 12px;border-radius:7px;font-size:11px}.prompt-detail h4{font-size:12px;margin:18px 0 6px}.prompt-text{font-family:inherit;white-space:pre-wrap;overflow-wrap:anywhere;background:#f2f6f9;padding:16px;border-radius:8px;font-size:12px;line-height:1.8}.empty-state{text-align:center;padding:60px 16px;border:1px dashed var(--line);border-radius:20px}
.sketch-studytop{display:flex;align-items:center;justify-content:space-between;background:white;padding:16px;border-radius:9px;font-size:13px;font-weight:550}.sketch-studytop span:last-child{font-size:24px;letter-spacing:-1px}.sketch-bars{display:flex;gap:5px;margin-top:10px}.sketch-bars i{height:22px;flex:1;background:#c8dcec;border-radius:5px}.sketch-bars i:nth-child(2){flex:3;background:var(--blue)}.sketch-line{font-size:11px;margin-top:15px;display:flex;gap:8px;align-items:center}.mini-tick{border-radius:50%;background:white;width:21px;height:21px;display:inline-flex;align-items:center;justify-content:center;color:var(--blue)}.sketch-packing{display:flex;align-items:center;gap:20px}.sketch-packing p{font-size:11px;margin:12px 0 0}.mini-pill{display:inline-block;font-size:10px;border-radius:6px;padding:6px 9px;background:#ffffffbf}.suitcase{position:relative;width:62px;height:83px;background:#95b796;border-radius:13px;flex-shrink:0;border:3px solid #5e8660;transform:rotate(-9deg)}.suitcase i{position:absolute;top:-14px;left:15px;width:26px;height:14px;border:3px solid #5e8660;border-radius:7px 7px 0 0}.suitcase b{position:absolute;width:4px;height:54px;top:10px;left:16px;background:#5e8660;border-radius:4px}.suitcase b:last-child{left:auto;right:16px}.sketch-comparison{display:flex;gap:10px}.sketch-comparison>div{background:white;border-radius:9px;padding:13px;flex:1}.sketch-comparison span{display:block;font-size:10px}.sketch-comparison b{display:block;font-size:33px;line-height:1.4;letter-spacing:-2px;font-weight:550}.sketch-comparison i{display:block;width:72%;height:4px;background:#b35c38;border-radius:5px}.sketch-comparison>div:last-child i{width:68%;background:#bd8770}.fake-slider{height:4px;background:#d5b39e;margin-top:18px;position:relative;border-radius:3px}.fake-slider i{display:block;width:60%;height:4px;background:#b35c38}.fake-slider b{position:absolute;left:60%;top:-5px;width:14px;height:14px;background:white;border:3px solid #b35c38;border-radius:50%}.sketch-caption{font-size:10px;margin-top:12px}.sketch-board{display:flex;gap:7px}.sketch-board>div{flex:1;min-width:0}.sketch-board span{font-size:10px;font-weight:550}.sketch-board p{font-size:10px;line-height:1.4;background:white;border-radius:6px;padding:10px 8px;margin:8px 0;min-height:40px}.sketch-board>div:nth-child(2) p{border-left:3px solid #867cbb}.sketch-board>div:last-child p{opacity:.8}.recall-stack{height:142px;position:relative;width:210px;margin:auto}.recall-stack>div{position:absolute;background:#fffef4;border:1px solid #dace99;width:100%;height:140px;border-radius:11px;transform:rotate(-7deg);top:0}.recall-stack>div:nth-child(2){transform:rotate(6deg)}.recall-stack>div:last-child{transform:none;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:11px}.recall-stack strong{text-align:center;font-size:20px;line-height:1.2;font-weight:550;letter-spacing:-.6px}.recall-stack span:first-child{font-size:10px}.recall-stack .mini-pill{background:#e9dfa9;padding-block:4px}.sketch-timeline{display:flex}.sketch-timeline>div{flex:1;position:relative;text-align:center}.sketch-timeline>div:after{position:absolute;content:'';top:29px;left:50%;height:2px;width:100%;background:#c89997}.sketch-timeline>div:last-child:after{display:none}.sketch-timeline span{font-size:11px;display:block;margin-bottom:8px}.sketch-timeline i{position:relative;z-index:1;display:block;width:12px;height:12px;background:#a95855;border:3px solid #f0e0df;border-radius:50%;margin:auto}.sketch-timeline b{font-size:11px;display:block;margin-top:9px;font-weight:550}
.blueprint{margin-top:100px;padding:48px;background:#edf2f6;border-radius:22px;display:grid;grid-template-columns:1fr 1fr;gap:90px}.blueprint h2{font-size:37px;line-height:1.1}.blueprint-copy>p{font-size:14px;max-width:410px;color:var(--muted);line-height:1.7}.blueprint-steps{display:flex;flex-direction:column;justify-content:center;gap:26px}.blueprint-steps>div{display:flex;gap:18px;align-items:start}.step-index{height:29px;width:29px;display:flex;align-items:center;justify-content:center;border:1px solid #bcccd8;border-radius:50%;font-size:12px;flex-shrink:0}.blueprint-steps h3{font-size:16px;margin-bottom:5px}.blueprint-steps p{font-size:12px;color:var(--muted)}.guides{padding-block:86px 72px}.guides h2{margin-bottom:30px}.guide-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:30px}.guide-link{display:flex;align-items:start;justify-content:space-between;gap:14px;border-top:2px solid var(--ink);padding-top:20px;text-decoration:none;min-height:120px}.guide-link h3{font-size:20px;line-height:1.2;margin-bottom:10px}.guide-link p{font-size:13px;color:var(--muted);line-height:1.7}.guide-link>svg{width:20px;height:20px;flex-shrink:0}.guide-link:hover h3{color:var(--blue)}.reality{padding-block:42px 48px;border-block:1px solid var(--line)}.reality>h2{font-size:26px;letter-spacing:-.035em;margin-bottom:26px}.reality-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:44px}.reality h3{font-size:14px;margin-bottom:8px}.reality-grid p{font-size:12px;color:var(--muted)}.source-line{font-size:11px;color:var(--muted);margin-top:28px}.source-line a{margin-left:6px}
.site-footer{padding-block:46px 28px}.footer-top{display:flex;justify-content:space-between;gap:30px}.footer-tag{font-size:12px;color:var(--muted);margin-top:12px}.footer-top nav{display:flex;flex-wrap:wrap;align-items:start;gap:24px;font-size:11px}.footer-top nav a{min-height:44px;display:flex;align-items:center;text-decoration:none}.footer-top nav a:hover{text-decoration:underline}.footer-small{font-size:10px;color:var(--muted);margin-top:32px}
.article,.trust-page{padding-block:60px 80px}.article-heading{max-width:850px;margin-bottom:55px}.breadcrumb{display:inline-flex;align-items:center;min-height:44px;font-size:13px;color:var(--muted);margin-bottom:10px}.article h1,.trust-page h1{font-size:clamp(40px,5vw,64px);line-height:1.08;letter-spacing:-.055em;font-weight:600;margin-bottom:24px}.article-intro{font-size:20px;color:var(--muted);line-height:1.7;max-width:760px}.article-meta{font-size:12px;color:var(--muted);margin-top:24px}.article-layout{display:grid;grid-template-columns:240px minmax(0,720px);gap:70px}.article-toc{align-self:start;position:sticky;top:30px;display:flex;flex-direction:column;font-size:13px}.article-toc>span{font-weight:600;margin-bottom:12px}.article-toc a{min-height:44px;display:flex;align-items:center;line-height:1.5;color:var(--muted);text-decoration:none;border-left:2px solid var(--line);padding-left:14px}.article-toc a:hover{border-color:var(--blue);color:var(--blue)}.article-prose{max-width:720px}.article-prose>section{margin-bottom:36px}.article-prose h2{font-size:27px;letter-spacing:-.025em;margin-bottom:16px;line-height:1.2}.article-prose p,.article-prose li{font-size:16px;line-height:1.85}.article-prose p{margin-bottom:18px}.article-prose a{color:#194bcc}.prompt-block{background:var(--sky);padding:25px 28px;border-radius:14px;margin-bottom:20px}.prompt-block p{font-size:14px}.source-box{border-top:1px solid var(--line);padding-top:30px;margin-top:50px}.source-box h2{font-size:20px}.source-box p,.source-box li{font-size:13px;color:var(--muted)}.source-box ul{padding-left:20px}.source-box li{margin-bottom:8px}.article-next{padding-top:20px;margin-top:34px}.article-next p{font-size:13px}.article-next a{color:white}.trust-page{max-width:840px}.trust-page>.article-intro{margin-bottom:46px}.not-found{padding-block:120px;min-height:60vh}.not-found h1{font-size:50px;letter-spacing:-2px}
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);z-index:40;background:var(--ink);color:white;border-radius:12px;box-shadow:0 6px 24px #172b3a30;max-width:min(520px,calc(100% - 32px));font-size:13px;padding:0;pointer-events:none;opacity:0}.toast[data-visible=true]{padding:14px 20px;opacity:1}.copy-dialog{border:1px solid var(--line);border-radius:20px;padding:28px;width:min(600px,calc(100% - 32px));color:var(--ink);background:var(--paper)}.copy-dialog::backdrop{background:#172b3a70}.dialog-heading{display:flex;justify-content:space-between;gap:16px;align-items:center}.dialog-heading h2{font-size:25px;margin-bottom:0}.dialog-heading button{background:none;border:0;font-size:30px;min-width:44px;min-height:44px}.copy-dialog p{font-size:14px}.copy-dialog textarea{width:100%;height:230px;resize:vertical;line-height:1.7;padding:14px;background:white;color:var(--ink);border:1px solid var(--line);border-radius:10px;font-size:14px;margin-bottom:20px}
html[lang=zh-Hans] .hero h1{letter-spacing:-.05em;font-size:clamp(58px,5.9vw,84px);line-height:1.13}html[lang=zh-Hans] .case-body h3{font-size:23px;line-height:1.3;min-height:60px}html[lang=zh-Hans] .hero-description{line-height:1.9}html[lang=zh-Hans] .demo-frame h2{line-height:1.25}
@media(min-width:1600px){.hero{padding-block:88px 108px}}
@media(max-width:1100px){.hero{gap:38px}.hero h1{font-size:67px}.section-intro{gap:40px}.site-nav{gap:20px}.case-grid{gap:24px 18px}.case-sketch{padding-inline:16px}.case-body{padding-inline:18px}.case-body h3{font-size:21px}.copy-button{font-size:10px}.blueprint{gap:48px}.article-layout{gap:40px;grid-template-columns:210px minmax(0,1fr)}}
@media(max-width:850px){.wrap{width:calc(100% - 48px)}.site-header{height:86px}.hero{grid-template-columns:1fr 1fr;gap:28px;padding-block:50px 64px}.hero h1{font-size:55px}.hero-description{font-size:15px}.hero-actions{gap:14px}.hero-actions .button{font-size:12px;gap:8px;padding-inline:13px}.hero-actions .text-link{font-size:12px}.demo-frame{padding:22px 20px 18px}.demo-frame h2{font-size:28px}.stage{padding-inline:8px}.stage>span:first-child{font-size:9px}.case-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.case-body h3{font-size:23px}.case-desc{min-height:45px}.section-intro{grid-template-columns:1fr;gap:12px;max-width:640px}.section-intro>p{max-width:100%}.blueprint{padding:32px;gap:36px}.blueprint h2{font-size:31px}.guide-grid{gap:20px}.guide-link h3{font-size:18px}.footer-top{flex-direction:column;gap:18px}.footer-top nav{gap:22px}.article-layout{grid-template-columns:1fr;gap:32px}.article-toc{position:static;padding-bottom:20px;border-bottom:1px solid var(--line);display:grid;grid-template-columns:1fr 1fr;gap:0 20px}.article-toc>span{grid-column:1/-1}html[lang=zh-Hans] .hero h1{font-size:58px}}
@media(max-width:650px){.wrap{width:calc(100% - 40px)}.site-header{height:auto;min-height:78px;flex-wrap:wrap;gap:0 15px;padding-block:16px}.brand{font-size:24px}.brand-mark{height:26px;width:26px}.js .menu-toggle{display:block}.site-nav{width:100%;padding-top:14px;gap:16px;flex-wrap:wrap;font-size:13px}.js .site-nav:not([data-open=true]){display:none}.language-link{padding-left:16px}.hero{grid-template-columns:1fr;gap:34px;padding-block:42px 54px}.hero-copy{max-width:500px}.hero h1{font-size:64px;letter-spacing:-.065em;margin-bottom:24px}.hero-description{font-size:16px;max-width:430px}.hero-actions{gap:24px}.hero-actions .button{font-size:13px;padding-inline:17px;gap:12px}.hero-actions .text-link{font-size:13px}.independent-note{max-width:400px}.demo-frame{max-width:480px;width:100%;padding:26px 25px 20px}.demo-frame h2{font-size:34px}.demo-intro{font-size:13px;max-width:360px}.stage>span:first-child{font-size:11px}.stage{padding:13px 12px}.demo-note{font-size:11px}.demo-tasks label{font-size:13px}.demo-progress span{font-size:11px}.library{padding-top:48px}.section-intro h2{font-size:34px}.section-intro p{font-size:14px}.library-controls{gap:16px}.filter-group{width:100%;gap:2px}.filter-button{padding:8px 12px;font-size:12px}.search-box{width:100%}.search-box input{font-size:14px}.results-count{margin:14px 0 18px}.case-grid{grid-template-columns:1fr;gap:24px}.case-sketch{height:230px;padding-inline:28px}.case-body{padding-inline:24px}.case-body h3{font-size:25px;min-height:0;margin-bottom:12px}.case-desc{font-size:14px;min-height:0;margin-bottom:20px}.case-meta{margin-bottom:14px}.copy-button{font-size:12px}.case-actions summary{font-size:13px}.prompt-text{font-size:13px}.sketch-content{max-width:290px}.blueprint{margin-top:58px;grid-template-columns:1fr;padding:28px;gap:28px}.blueprint h2{font-size:34px}.blueprint-steps{gap:22px}.blueprint-steps p{font-size:13px}.guides{padding-block:58px 48px}.guides>h2{font-size:33px}.guide-grid{grid-template-columns:1fr;gap:20px}.guide-link{min-height:100px}.guide-link h3{font-size:21px}.guide-link p{font-size:14px}.reality{padding-block:34px}.reality-grid{grid-template-columns:1fr;gap:24px}.reality-grid p{font-size:13px}.source-line{font-size:12px;line-height:1.8}.source-line a{display:inline-block;margin-left:0;min-height:44px}.footer-top nav{gap:2px 24px;font-size:12px}.footer-small{font-size:11px;line-height:1.8;margin-top:24px}.site-footer{padding-top:32px}.article,.trust-page{padding-block:36px 54px}.article h1,.trust-page h1{font-size:44px;letter-spacing:-.05em}.article-heading{margin-bottom:30px}.article-intro{font-size:18px}.article-prose h2{font-size:26px}.article-prose p{font-size:15px;line-height:1.9}.article-toc{grid-template-columns:1fr}.article-toc a{min-height:44px}.prompt-block{padding:20px}.copy-dialog{padding:20px}html[lang=zh-Hans] .hero h1{font-size:clamp(44px,13vw,60px)}}
@media(max-width:360px){.wrap{width:calc(100% - 32px)}.hero h1{font-size:54px}.hero-actions{gap:16px}.hero-actions .button{font-size:12px;padding-inline:13px}.hero-actions .text-link{font-size:12px}.demo-frame{padding:22px 18px 18px}.demo-frame h2{font-size:31px}.stage{padding-inline:8px}.stage>span:first-child{font-size:10px}.filter-button{padding-inline:10px}.blueprint{padding:24px}.blueprint h2{font-size:30px}.case-body{padding-inline:20px}.case-body h3{font-size:24px}html[lang=zh-Hans] .hero h1{font-size:44px}.article h1,.trust-page h1{font-size:38px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}
@media print{.site-nav,.menu-toggle,.hero-actions,.copy-button,.library-controls,.toast,.copy-dialog{display:none!important}.wrap{width:100%}.hero,.case-grid,.blueprint,.guide-grid,.article-layout{display:block}.case-card{break-inside:avoid;margin-bottom:20px}.case-sketch{height:150px}.site-footer{border-top:1px solid #aaa}.article-toc{display:none}body{background:white;color:black}a{color:black!important}.case-actions details .prompt-detail{display:block}}

/* Native language menu keeps the current article when switching locale. */
.language-picker{position:relative;border-left:1px solid var(--line);padding-left:24px}
.language-picker summary{display:flex;align-items:center;gap:9px;min-height:44px;cursor:pointer;list-style:none;white-space:nowrap}
.language-picker summary::-webkit-details-marker{display:none}.language-picker summary>svg{width:16px;height:16px}
.language-options{position:absolute;z-index:30;right:0;top:calc(100% + 8px);min-width:180px;padding:8px;background:var(--white);border:1px solid var(--line);border-radius:12px;box-shadow:0 16px 36px #172b3a14}
.language-options a{justify-content:space-between;gap:24px;padding:9px 12px;border-radius:6px;font-size:14px}
.language-options a:hover,.language-options a[aria-current=page]{background:#edf2fa;color:var(--blue)}
.faq{padding-block:58px 30px}.faq>h2{font-size:32px;margin-bottom:25px}
.faq-list{max-width:840px}.faq-list details{border-top:1px solid var(--line)}.faq-list details:last-child{border-bottom:1px solid var(--line)}
.faq-list summary{position:relative;min-height:58px;padding:17px 34px 17px 0;cursor:pointer;list-style:none;font-size:15px;font-weight:600;line-height:1.55}
.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:'+';position:absolute;right:3px;top:17px;font-size:20px;line-height:1}
.faq-list details[open] summary:after{content:'−'}.faq-list p{padding:0 34px 22px 0;max-width:790px;font-size:14px;line-height:1.85;color:var(--muted)}
html[lang=ja] body{font-family:Instrument,'Yu Gothic','Hiragino Kaku Gothic ProN','Meiryo',sans-serif}
html[lang=ko] body{font-family:Instrument,'Malgun Gothic','Apple SD Gothic Neo',sans-serif;word-break:keep-all;overflow-wrap:break-word}
html[lang=ja] .hero h1,html[lang=ko] .hero h1{font-size:clamp(42px,4.7vw,67px);line-height:1.2;letter-spacing:-.055em}
html[lang=ja] .hero-description,html[lang=ko] .hero-description{line-height:1.9}
html[lang=ja] .case-body h3,html[lang=ko] .case-body h3{font-size:22px;line-height:1.4}
html[lang=ja] .demo-frame h2,html[lang=ko] .demo-frame h2{line-height:1.3}
@media(max-width:850px){.language-picker{padding-left:16px}html[lang=ja] .hero h1,html[lang=ko] .hero h1{font-size:43px}}
@media(max-width:650px){.language-picker{padding-left:16px}.language-options{left:0;right:auto}.faq{padding-block:42px 12px}.faq>h2{font-size:29px}
html[lang=ja] .hero h1{font-size:clamp(39px,11vw,56px)}html[lang=ko] .hero h1{font-size:clamp(32px,9.2vw,46px)}
html[lang=ja] .case-body h3,html[lang=ko] .case-body h3{font-size:24px}
}
@media print{.language-picker{display:none!important}}

/* Keep translated stage labels within narrow cards. */
.stage>span:first-child{white-space:normal;min-height:28px;line-height:1.35}