:root{--paper:#fbf8ef;--ink:#35413a;--teal:#18a7a6;--orange:#ed6848;--line:#dcded0;--muted:#59675c;--teal-text:#147c7b;--orange-text:#c04e32;--gold:#eebc50;scroll-behavior:smooth;color-scheme:light}
*{box-sizing:border-box}body{margin:0;color:var(--ink);background:var(--paper);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC",sans-serif;line-height:1.65;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button,a,summary{-webkit-tap-highlight-color:transparent}img{display:block;max-width:100%;height:auto}a:focus-visible,summary:focus-visible{outline:3px solid var(--orange-text);outline-offset:6px}::selection{background:#bde5d7}.wrap{width:min(1180px,calc(100% - 80px));margin:auto}.site-header{height:105px;width:min(1280px,calc(100% - 80px));margin:auto;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{font-weight:850;letter-spacing:.07em;display:inline-flex;align-items:center;gap:8px;font-size:21px;white-space:nowrap}.brand>span:last-child{color:var(--teal-text)}.brand-dot{position:relative;width:31px;height:31px;margin-right:5px;transform:rotate(-8deg)}.brand-dot img{position:absolute;inset:0;width:100%;height:100%}nav{display:flex;align-items:center;gap:33px;font-size:14px;font-weight:550}nav>a:not(.language){padding:12px 0;border-bottom:1px solid transparent}nav>a:hover{color:#147c7b}nav>a:not(.language):hover{border-color:var(--teal-text)}.language{border:1px solid var(--line);padding:9px 17px;border-radius:30px}.skip{position:fixed;top:-90px;left:20px;padding:12px 22px;background:white;border:2px solid var(--ink);z-index:10}.skip:focus{top:12px}.hero{min-height:690px;display:grid;grid-template-columns:1.05fr 1fr;align-items:center;gap:20px;padding:65px 0 90px}.eyebrow{font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--muted);margin:0 0 24px;text-transform:uppercase}.eyebrow i{display:inline-block;width:7px;height:7px;background:var(--orange);border-radius:50%;margin-right:10px;vertical-align:2px}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(52px,6.6vw,88px);line-height:1.06;letter-spacing:-.055em;font-weight:760;margin-bottom:30px}h1 span{color:var(--teal-text);position:relative}h1 span:after{content:"";position:absolute;left:0;right:0;bottom:-7px;height:5px;background:#bddbce;transform:rotate(-1.6deg);border-radius:60%}html[lang=zh-Hans] h1{line-height:1.24;letter-spacing:-.035em}.lead{font-size:19px;line-height:1.9;color:var(--muted);max-width:470px;margin-bottom:32px}.button{display:inline-flex;gap:34px;align-items:center;justify-content:space-between;background:var(--ink);color:var(--paper);border:1px solid var(--ink);padding:15px 25px;border-radius:100px;font-size:14px;font-weight:650;min-height:53px;transition:background .2s,transform .2s}.button:hover{background:#196f65;transform:translateY(-2px)}.button span{font-size:22px;font-weight:400}.small-note{font-size:12px;color:var(--muted);margin:15px 0 0}.hero-art{position:relative;width:100%;aspect-ratio:1;margin:0;background-image:linear-gradient(#b9c5b526 1px,transparent 1px),linear-gradient(90deg,#b9c5b526 1px,transparent 1px);background-size:32px 32px;mask-image:linear-gradient(90deg,transparent,#000 10%,#000 90%,transparent)}.hero-ring{position:absolute;width:64.3%;left:6.25%;top:30.35%;transform:rotate(-9deg)}.next-ring{position:absolute;width:39.3%;left:60.7%;top:0;transform:rotate(12deg)}.hero-art svg{position:absolute;width:100%;height:100%;inset:0}.hero-ball{position:absolute;width:8.6%;left:62.5%;top:65.9%;transform:rotate(-3deg);filter:drop-shadow(0 2px 0 #36413c15)}.hero-ball img{position:absolute;inset:0;width:100%}.hero-ball:before{content:"";display:block;padding-top:100%}.pencil-note{position:absolute;left:15%;top:17%;font-family:"Chalkboard SE","Comic Sans MS",sans-serif;font-size:clamp(12px,1.2vw,16px);transform:rotate(-7deg);color:var(--muted)}figcaption{font-size:11px;color:var(--muted);line-height:1.6}.hero-art figcaption{position:absolute;bottom:0;left:0;right:0;text-align:center}.trait-strip{display:flex;justify-content:center;gap:80px;padding:25px 0 30px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);font-size:13px;letter-spacing:.03em}.trait-strip span:first-letter{color:var(--teal-text);font-size:22px}.section{padding-top:115px;padding-bottom:115px}h2{font-size:clamp(32px,4vw,51px);line-height:1.2;letter-spacing:-.04em;font-weight:700;margin-bottom:26px}html[lang=zh-Hans] h2{line-height:1.4;letter-spacing:-.02em}.body-copy{font-size:17px;color:var(--muted);max-width:480px;line-height:1.9}.muted{font-size:13px;color:var(--muted);line-height:1.85}.how{display:grid;grid-template-columns:1fr 1fr;gap:110px;align-items:center}.how .muted{max-width:400px;border-left:2px solid #c4d8bc;padding-left:18px;margin:30px 0 0}.steps{list-style:none;padding:0;margin:0;display:grid;gap:27px}.steps li{display:flex;gap:25px;padding-bottom:26px;border-bottom:1px solid var(--line)}.steps li:last-child{padding-bottom:0;border:0}.steps li>span{font-family:Georgia,serif;color:var(--teal-text);font-size:35px;line-height:1.3;font-style:italic}.steps h3{font-size:20px;letter-spacing:-.02em;margin:0 0 6px}.steps p{font-size:14px;color:var(--muted);margin:0}.rings{background:#f0f2e8;border-top:1px solid #e6e9dd;border-bottom:1px solid #e6e9dd}.rings h2,.rings>.wrap>.eyebrow,.section-intro{text-align:center}.section-intro{font-size:16px;color:var(--muted);margin-bottom:60px}.ring-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:52px 36px}.ring-card{display:flex;align-items:center;gap:14px}.ring-card img{width:113px;flex-shrink:0;aspect-ratio:1;object-fit:contain}.ring-card h3{font-size:16px;margin:0 0 7px}.ring-card p{font-size:13px;line-height:1.75;color:var(--muted);margin:0}.choices{display:grid;grid-template-columns:1fr 1fr;gap:90px;align-items:center;padding-bottom:75px}.choice-art{position:relative;min-height:360px;transform:rotate(-6deg)}.choice-large{position:absolute;left:0;bottom:0;width:63%}.choice-small{position:absolute;right:0;top:0;width:38%;transform:rotate(10deg)}.choice-scribble{position:absolute;right:34%;top:16%;font-family:Georgia,serif;font-size:53px;line-height:.85;transform:rotate(6deg);color:#a8b8a0}.score{display:grid;grid-template-columns:1fr 1fr;gap:100px;padding-top:55px;border-top:1px solid var(--line)}.score h2{font-size:33px}.score-table{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;margin-bottom:23px}.score-table>div{border-left:1px solid var(--line);padding-left:20px}.score-table>div:first-child{border-left:0;padding-left:0}.score-table span{font-size:11px;color:var(--muted);white-space:nowrap}.score-table strong{display:block;font-size:54px;line-height:1.3;font-weight:600;color:var(--orange-text);letter-spacing:-.04em;margin-top:13px}.score-table small{display:block;font-size:11px;color:var(--muted);font-weight:400;letter-spacing:0}.screens{background:#e6eee5}.screen-layout{display:grid;grid-template-columns:1fr 1fr;gap:100px;align-items:center}.screen-copy{max-width:460px}.phone{width:275px;margin:0 auto;position:relative}.phone>img{border:8px solid #35413a;border-radius:40px;background:var(--paper);box-shadow:12px 18px 0 #c4d2bf}.phone figcaption{margin-top:25px;max-width:300px;text-align:center}.local-note{margin-top:35px;border-top:1px solid #bbcbb8;padding-top:30px}.local-note>span{color:var(--orange-text);font-size:21px}.local-note h3{font-size:19px;margin:8px 0 12px}.local-note p{color:var(--muted);font-size:14px;line-height:1.85;margin:0}.faq{display:grid;grid-template-columns:.9fr 1.1fr;gap:80px}.faq h2{font-size:35px}.faq details{border-bottom:1px solid var(--line);padding:17px 0}.faq details:first-child{border-top:1px solid var(--line)}summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;gap:24px;align-items:center;font-size:16px;font-weight:600;padding:7px 0;min-height:44px}summary::-webkit-details-marker{display:none}summary span{font-size:22px;color:var(--teal-text);font-weight:350}details[open] summary span{transform:rotate(45deg)}details p{font-size:14px;color:var(--muted);line-height:1.9;max-width:500px;margin:14px 30px 5px 0}.closing{text-align:center;padding-top:0}.closing>img{margin:0 auto 28px;border-radius:21px;transform:rotate(-5deg);box-shadow:5px 5px 0 #d9dfcf}.closing h2{margin-bottom:12px}.closing p{color:var(--muted);font-size:16px}.release-status{display:inline-block;border:1px dashed #9dac94;border-radius:40px;padding:11px 25px;font-size:12px;color:var(--muted);margin-top:10px}footer{border-top:1px solid var(--line);padding:34px 40px 36px;width:min(1280px,100%);margin:auto;display:flex;align-items:center;gap:24px;justify-content:space-between}footer .brand{font-size:15px}footer p,footer a:not(.brand){font-size:11px;color:var(--muted);margin:0}footer>div{display:flex;gap:23px}footer a:hover{text-decoration:underline}.legal{max-width:820px;padding:70px 0 110px}.legal h1{font-size:clamp(40px,5vw,64px);line-height:1.25}.legal .lead{max-width:700px}.draft-label{font-size:11px;letter-spacing:.05em;color:#845b21;background:#fae7b8;display:inline-block;padding:7px 12px;border-radius:6px;margin-bottom:25px}.pending{padding:18px 22px;border-left:3px solid var(--gold);background:#f5f0df;font-size:13px;line-height:1.9;margin:30px 0 44px}.pending p{margin:4px 0}.legal section{margin-bottom:33px}.legal h2{font-size:22px;letter-spacing:-.02em;margin-bottom:12px}.legal section p{font-size:15px;line-height:1.95;color:var(--muted)}.quiet{background:transparent;color:var(--ink)}.quiet:hover{color:white}
@media(min-width:1600px){.hero{padding-top:90px;padding-bottom:115px}}
@media(max-width:1000px){.wrap{width:calc(100% - 56px)}.site-header{width:calc(100% - 56px)}nav{gap:21px}.hero{min-height:600px;gap:10px;padding:60px 0 75px}h1{font-size:64px}.lead{font-size:17px}.how,.choices,.score,.screen-layout{gap:50px}.ring-grid{gap:38px 22px}.ring-card{flex-direction:column;align-items:flex-start}.ring-card img{width:110px}.section{padding-top:85px;padding-bottom:85px}.faq{gap:50px}.choices{padding-bottom:55px}.score{padding-top:50px}.score-table span{white-space:normal}.score-table strong{font-size:46px}footer{flex-wrap:wrap;gap:18px}.closing{padding-top:0}}
@media(max-width:700px){.wrap,.site-header{width:calc(100% - 40px)}.site-header{height:82px}.brand{font-size:17px;gap:5px}.brand-dot{width:28px;height:28px;margin-right:3px}nav>a:not(.language){display:none}.language{font-size:12px;padding:8px 13px;min-height:40px;display:inline-flex;align-items:center}.hero{grid-template-columns:1fr;min-height:0;padding:46px 0 32px;gap:18px}.hero-copy{max-width:520px}.eyebrow{font-size:10px;margin-bottom:20px;letter-spacing:.08em}h1{font-size:clamp(50px,12vw,72px);margin-bottom:25px}.lead{font-size:16px;line-height:1.85;max-width:400px;margin-bottom:26px}.hero-art{width:min(440px,100%);margin:8px auto 0;aspect-ratio:1.04}.hero-art figcaption{font-size:10px}.pencil-note{font-size:12px}.button{font-size:13px;padding:13px 22px}.small-note{font-size:11px}.trait-strip{gap:0;justify-content:space-between;padding:19px 0 20px;font-size:10px}.trait-strip span:first-letter{font-size:17px}.section{padding-top:66px;padding-bottom:66px}h2{font-size:34px}.how,.choices,.score,.screen-layout,.faq{grid-template-columns:1fr;gap:34px}.how{gap:35px}.body-copy{font-size:16px}.how .muted{margin-top:20px}.steps{gap:22px}.steps li{padding-bottom:21px}.steps h3{font-size:18px}.steps p{font-size:13px}.section-intro{font-size:14px;margin-bottom:36px}.ring-grid{grid-template-columns:1fr 1fr;gap:34px 23px}.ring-card{gap:8px}.ring-card img{width:98px}.ring-card h3{font-size:15px}.ring-card p{font-size:12px}.choices{padding-bottom:48px;gap:30px}.choice-art{min-height:285px;max-width:390px;width:100%;margin:auto}.choice-art .choice-large{width:63%}.choices>div:last-child{grid-row:1}.choice-scribble{font-size:42px}.score{padding-top:44px;gap:28px}.score h2{font-size:29px}.score-table strong{font-size:49px}.score-table span{font-size:10px}.score-table>div{padding-left:14px}.screens .screen-layout{gap:45px}.phone{width:255px;max-width:83%}.phone>img{border-width:7px;border-radius:36px;box-shadow:9px 13px 0 #c4d2bf}.local-note{margin-top:28px;padding-top:22px}.local-note h3{font-size:17px}.faq{gap:25px}.faq h2{font-size:30px}.closing{padding-top:0}.closing h2{font-size:30px}.closing>img{width:76px;height:76px}footer{padding:25px 20px;display:grid;gap:16px;justify-items:start}.legal{padding-top:45px;padding-bottom:70px}.legal h1{font-size:39px}.legal h2{font-size:21px}.legal .lead{font-size:16px}.pending{font-size:12px;padding:15px 17px}.legal section p{font-size:14px}.legal nav{gap:10px}}
@media(prefers-reduced-motion:reduce){:root{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}.button:hover{transform:none}}
/* Separate the art and its caption without distorting the tangent diagram. */
.hero-art{aspect-ratio:auto;background:none;mask-image:none}
.hero-art-drawing{position:relative;width:100%;aspect-ratio:1;background-image:linear-gradient(#b9c5b526 1px,transparent 1px),linear-gradient(90deg,#b9c5b526 1px,transparent 1px);background-size:32px 32px;mask-image:linear-gradient(90deg,transparent,#000 10%,#000 90%,transparent)}
.hero-art figcaption{position:static;margin-top:10px;text-align:center}
.screenshot-status{display:block;text-align:center;font-size:11px;font-weight:650;line-height:1.5;color:var(--ink);margin:0 0 14px;padding:7px 10px;border:1px dashed #8ba18b;border-radius:10px;background:#fbf8ef}
@media(max-width:700px){.language{min-height:44px}}
/* Reflow enlarged text instead of hiding it beyond a fixed row or column. */
.site-header{height:auto;min-height:105px;padding-block:22px;flex-wrap:wrap}
.site-header nav{flex-wrap:wrap;max-width:100%}
.brand{max-width:100%;flex-wrap:wrap;white-space:normal;min-width:0}
.brand-dot{flex-shrink:0}
.hero>* , .how>* , .choices>* , .score>* , .screen-layout>* , .faq>*{min-width:0}
.button{max-width:100%;gap:clamp(8px,3vw,34px);white-space:normal}
.button>span{flex-shrink:0}
.score-table{grid-template-columns:repeat(auto-fit,minmax(min(100%,5rem),1fr))}
.ring-card,.ring-card>div{min-width:0}
.ring-card h3,.ring-card p,.trait-strip span{overflow-wrap:anywhere}
.trait-strip span{min-width:0}
footer>div{flex-wrap:wrap;gap:12px 23px}
@media(max-width:700px){.site-header{min-height:82px;padding-block:18px}.ring-grid{grid-template-columns:repeat(auto-fit,minmax(min(100%,8rem),1fr))}}

.score-table .combo-range{display:block;white-space:nowrap;font-size:13px;font-weight:650;color:var(--ink);margin-top:4px}

/* Bound the underline to its text block; do not mask layout overflow. */
h1 span{display:inline-block;max-width:100%}h1 span:after{left:2px;right:2px}
/* Limit only decorative image canvases; page text and controls stay unclipped. */
.hero-art-drawing,.choice-art{overflow:clip}