:root{--ink:#272d3b;--muted:#7d8493;--blue:#5172e2;--line:#e5e7ec;--paper:#f7f8fa}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:var(--paper);font:14px/1.7 'Segoe UI','Microsoft YaHei',sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}a:focus-visible,summary:focus-visible{outline:2px solid #8ca5fb;outline-offset:6px}button,a{-webkit-tap-highlight-color:transparent}.wrap{max-width:1100px;margin-left:auto;margin-right:auto}.nav{height:88px;display:flex;align-items:center;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;font-size:24px;letter-spacing:-.7px;font-weight:650;color:#252d42}.brand-mark{display:grid;place-items:center;background:#5172e2;color:white;width:31px;height:34px;border-radius:10px;margin-right:10px;box-shadow:inset 0 1px 0 #ffffff55,0 2px 4px #465a8c12}.brand-mark svg{width:25px;height:25px;fill:none;stroke:currentColor;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}.nav-caption{font-size:11px;margin-left:24px;color:#9298a5;letter-spacing:.5px}.nav-guide{margin-left:auto;display:flex;align-items:center;gap:9px;font-size:12px;color:#6a7385}a svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}.nav-guide svg{width:15px}.hero{text-align:center;padding:66px 20px 48px;position:relative}.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:11px;letter-spacing:2px;color:#697a9e;margin-bottom:21px}.eyebrow>span{width:5px;height:5px;background:#8198e5;border-radius:50%}h1{font-size:clamp(30px,3.5vw,43px);font-weight:550;letter-spacing:-1.2px;line-height:1.4;margin:0;color:#273048}h1 span{font-family:'Segoe UI',sans-serif;font-weight:550}.lead{font-size:14px;color:#8a91a0;margin:19px 0 26px;line-height:1.9}.hero-actions{display:flex;align-items:center;justify-content:center;gap:25px}.primary{display:inline-flex;align-items:center;justify-content:center;gap:10px;border:1px solid #4869d7;border-radius:8px;padding:12px 21px;background:linear-gradient(180deg,#5b7be9,#4b6bd7);box-shadow:inset 0 1px 0 #ffffff26,0 4px 9px #4e6fd51c;color:white;font-size:12px;font-weight:550;transition:box-shadow .2s,transform .2s}.primary:hover{box-shadow:inset 0 1px 0 #ffffff26,0 6px 16px #4e6fd52c;transform:translateY(-1px)}.primary svg{width:17px;height:17px}.guide-link{display:inline-flex;align-items:center;gap:9px;color:#68758f;font-size:12px}.guide-link:hover,.text-link:hover,.nav-guide:hover{color:var(--blue)}.guide-link svg{width:16px;height:16px}.release-line{font-size:10px;color:#a0a6b1;margin:16px 0 0}.release-line span{margin:0 9px}.tools{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.tool-card{background:#fff;border:1px solid #e3e6ed;border-radius:16px;padding:25px 24px 20px;box-shadow:0 3px 6px #1f2e5103,0 12px 24px #1f2e5103;transition:transform .25s,box-shadow .25s}.tool-card:hover{transform:translateY(-3px);box-shadow:0 15px 30px #1f2e510b}.tool-card-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.tool-icon{display:grid;place-items:center;width:44px;height:44px;border-radius:12px;background:linear-gradient(135deg,#f4f6ff,#eef1fa);border:1px solid #e5eafb;color:#7088c8}.tool-icon svg{width:26px;height:26px}.tool-index{font:10px 'Segoe UI',sans-serif;letter-spacing:1px;color:#b7becb}.tool-heading{display:flex;align-items:center;justify-content:space-between;gap:8px}.tool-heading h2{font-size:19px;font-weight:600;letter-spacing:-.35px;margin:0}.version{font-size:10px;color:#909bad;background:#f6f7fa;border-radius:4px;padding:2px 7px}.tool-tagline{margin:6px 0 20px;font-size:12px;color:#858d9d}.tool-description{font-size:11px;color:#8a92a1;line-height:1.85;margin:17px 0 0;min-height:40px}.preview{height:188px;border-radius:9px;background:#f5f6f9;border:1px solid #e8ebf1;overflow:hidden;position:relative}.mock-top{height:32px;display:flex;align-items:center;gap:6px;padding:0 11px;border-bottom:1px solid #e5e8f0;background:#f1f3f7;font-size:9px;color:#929aae}.mock-top>i{width:4px;height:4px;border-radius:50%;background:#aab5cc}.mock-state{margin-left:auto;font-size:8px;color:#9ba6b9}.layer-row{height:33px;display:flex;align-items:center;gap:9px;padding:0 12px;border-bottom:1px solid #e9ecf3;color:#78849c;font-size:9px}.layer-row small{margin-left:auto;font-size:8px;color:#8a9bb4}.layer-eye{display:block;width:9px;height:6px;border:1px solid #acb7c9;border-radius:50%}.layer-thumb{display:grid;place-items:center;width:18px;height:18px;border:1px solid #cad5ec;border-radius:3px}.layer-thumb.blue{background:#8b9fdf}.text-thumb{font:600 13px Georgia,serif;color:#8a9bb9;background:#eef2f8}.empty{background:repeating-conic-gradient(#e9edf4 0% 25%,#f7f9fc 0% 50%) 50%/7px 7px;border-style:dashed}.removed{opacity:.5}.removed>span:not(.layer-thumb){text-decoration:line-through}.export-art{height:120px;display:flex;align-items:center;justify-content:center;gap:17px;padding-bottom:9px}.asset-tile{position:relative;display:grid;place-items:center;border:1px dashed #bac7e8;border-radius:5px;background:#fff8;aspect-ratio:1}.asset-tile.small{width:39px}.asset-tile.medium{width:55px}.asset-tile.large{width:71px}.asset-shape{display:block;width:50%;height:50%;border-radius:25%;background:linear-gradient(145deg,#a2b5f1,#7189cb);box-shadow:inset 0 1px 0 #ffffff60;transform:rotate(-8deg)}.asset-tile small{position:absolute;top:calc(100% + 5px);font-size:8px;color:#99a6bf}.export-files{display:flex;justify-content:space-between;margin:4px 13px 0;border-top:1px solid #e5e9f1;padding-top:6px;font-size:8px;color:#9aa5b9}.measure-art{position:relative;width:160px;height:100px;margin:32px auto 0}.measure-button{position:absolute;top:20px;left:10px;right:10px;height:44px;background:#718bd9;border-radius:7px;color:white;display:grid;place-items:center;font-size:14px;box-shadow:0 3px 5px #5372c114}.measure-width{position:absolute;left:10px;right:10px;top:8px;border-top:1px solid #a3b3dd;height:5px}.measure-width:before,.measure-width:after{content:'';position:absolute;height:6px;width:1px;top:-4px;background:#a3b3dd}.measure-width:before{left:0}.measure-width:after{right:0}.measure-width span{position:absolute;top:-19px;left:0;right:0;text-align:center;font-size:8px;color:#8d9dc1}.measure-height{position:absolute;left:160px;top:20px;height:44px;width:5px;border-left:1px solid #a3b3dd}.measure-height:before,.measure-height:after{content:'';position:absolute;width:6px;height:1px;left:-4px;background:#a3b3dd}.measure-height:before{top:0}.measure-height:after{bottom:0}.measure-height span{position:absolute;left:6px;top:14px;font-size:8px;color:#8d9dc1}.color-label{display:flex;align-items:center;justify-content:center;gap:5px;position:absolute;top:80px;width:100%;font-size:8px;letter-spacing:.3px;color:#929fb8}.color-label i{display:block;width:7px;height:7px;border-radius:2px;background:#5172e2}.point{width:4px;height:4px;border:1px solid #9cafdd;background:#fff;position:absolute}.point.a{left:7px;top:17px}.point.b{right:7px;top:17px}.point.c{left:7px;top:63px}.point.d{right:7px;top:63px}.tools-caption{display:flex;justify-content:space-between;padding:15px 1px 0;font-size:10px;color:#9aa2b1}.tools-caption>span:last-child{color:#aeb5bf}.install{padding:51px 0 38px}.section-heading{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:23px}.eyebrow-label{font-size:10px;letter-spacing:1px;color:#a0a8b7;margin:0 0 8px}.section-heading h2{font-size:23px;font-weight:550;margin:0;letter-spacing:-.4px}.text-link{display:inline-flex;align-items:center;gap:10px;font-size:11px;color:#7a89a6;flex-shrink:0}.text-link svg{width:15px}.steps{list-style:none;margin:0;padding:24px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);display:grid;grid-template-columns:repeat(3,minmax(0,1fr))}.steps li{display:flex;gap:15px;padding:0 25px;border-right:1px solid var(--line)}.steps li:first-child{padding-left:0}.steps li:last-child{border:0;padding-right:0}.step-number{font:12px/25px 'Segoe UI',sans-serif;color:#9aabd0}.steps h3{font-size:12px;font-weight:550;margin:0 0 6px}.steps p{font-size:10px;color:#919aab;margin:0;line-height:1.85}.details-area{display:grid;grid-template-columns:.95fr 1.35fr;gap:62px;padding:18px 0 40px}.release-card{padding:25px 26px;border:1px solid #e3e7f0;background:linear-gradient(145deg,#f0f3fb,#f8f9fc);border-radius:12px;align-self:start}.release-card .eyebrow-label{display:flex;justify-content:space-between;color:#8795b1;font-size:9px;letter-spacing:0}.release-card h2{font-size:20px;font-weight:550;margin:20px 0 10px}.release-intro{font-size:11px;color:#8994a9;margin:0 0 16px}.release-card ul{margin:0;padding-left:15px;font-size:11px;line-height:2.2;color:#78849d}.release-card li::marker{color:#a6b5d5}.release-foot{border-top:1px solid #e0e6f2;margin-top:21px;padding-top:14px;font-size:9px;color:#8d99ad;display:flex;align-items:center;gap:7px}.status-dot{width:4px;height:4px;background:#97ad9e;border-radius:50%;flex-shrink:0}.faq h2{font-size:18px;font-weight:550;margin:0 0 14px}.faq details{border-bottom:1px solid var(--line);padding:12px 0}.faq summary{cursor:pointer;font-size:11px;list-style:none;display:flex;justify-content:space-between;color:#778398;gap:10px}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:'+';color:#a2abc0;font-size:15px;line-height:18px}.faq details[open] summary{color:#53698e}.faq details[open] summary:after{content:'−'}.faq details p{font-size:10px;color:#8d98a9;line-height:1.9}.faq a{color:var(--blue);text-decoration:underline}.hash{display:block;overflow-wrap:anywhere;color:#8c98b0;font-size:9px}.guide-band{display:flex;align-items:center;padding:26px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);gap:20px}.guide-symbol{display:grid;place-items:center;width:40px;height:40px;background:#edf1fa;border:1px solid #e2e8f4;border-radius:10px;color:#8b9fc7}.guide-symbol svg{width:21px;height:21px;fill:none;stroke:currentColor;stroke-width:1.3;stroke-linecap:round;stroke-linejoin:round}.guide-band h2{font-size:15px;font-weight:550;margin:0 0 4px}.guide-band p{font-size:10px;color:#9aa3b1;margin:0}.guide-band>a{margin-left:auto}footer{display:flex;align-items:center;padding:27px 0 35px;gap:20px;color:#a3aab6;font-size:10px}footer .brand{font-size:19px;font-weight:600}.footer-platform{margin-left:auto;font-size:9px;letter-spacing:1px}@media(max-width:1180px){.wrap{margin-left:36px;margin-right:36px}.tools{gap:15px}.tool-card{padding:21px 18px 18px}.details-area{gap:35px}}@media(max-width:860px){h1{font-size:35px}.tools{gap:12px}.tool-card{padding:19px 13px 14px}.tool-heading h2{font-size:16px}.version{font-size:8px;padding:2px 5px}.preview{height:175px}.export-art{gap:10px}.asset-tile.small{width:28px}.asset-tile.medium{width:40px}.asset-tile.large{width:52px}.measure-art{transform:scale(.85);transform-origin:top center}.details-area{gap:26px}.tool-description{font-size:10px}}@media(max-width:680px){.wrap{margin-left:23px;margin-right:23px}.nav{height:73px}.nav-caption{display:none}.hero{padding:45px 0 34px}h1{font-size:31px;max-width:380px;margin:auto;line-height:1.5;letter-spacing:-.7px}.lead{font-size:12px;max-width:300px;margin:16px auto 22px}.hero-actions{gap:18px}.primary{padding:11px 15px;font-size:11px}.guide-link{font-size:11px;gap:6px}.guide-link svg{display:none}.tools{grid-template-columns:1fr;gap:17px;max-width:430px;margin-left:auto;margin-right:auto;padding:0 23px}.tool-card{padding:23px}.tool-card-head{margin-bottom:13px}.tool-heading h2{font-size:20px}.version{font-size:10px}.preview{height:185px}.tool-description{font-size:12px;min-height:0}.tool-tagline{font-size:12px}.export-art{gap:25px}.asset-tile.small{width:39px}.asset-tile.medium{width:55px}.asset-tile.large{width:71px}.measure-art{transform:none}.tools-caption{justify-content:center;text-align:center;line-height:1.9}.tools-caption>span:last-child{display:none}.install{padding-top:36px}.section-heading h2{font-size:22px}.section-heading>.text-link{font-size:10px}.steps{grid-template-columns:1fr;gap:24px;padding:23px 0}.steps li,.steps li:first-child,.steps li:last-child{padding:0;border:0;gap:18px}.steps h3{font-size:13px}.steps p{font-size:11px}.details-area{grid-template-columns:1fr;gap:35px}.release-card{padding:24px}.release-card ul{font-size:12px}.faq h2{font-size:20px}.faq summary{font-size:12px}.faq details p{font-size:11px}.guide-band{flex-wrap:wrap;gap:14px}.guide-band>a{margin-left:54px}.guide-band h2{font-size:14px}footer{gap:12px}.footer-platform{letter-spacing:0;font-size:8px}}@media(prefers-reduced-motion:reduce){.primary,.tool-card{transition:none;transform:none!important}}
/* Parallel hero actions share geometry, with distinct primary/secondary colors. */
.hero-actions{gap:12px}
.hero-actions>a{justify-content:center;min-height:46px;width:220px;padding:12px 18px;border-radius:8px;font-size:12px;font-weight:550;white-space:nowrap}
.hero-actions .guide-link{border:1px solid #35776f;background:#3f8178;color:#fff;box-shadow:inset 0 1px 0 #ffffff26,0 4px 9px #35776f1c;transition:background .2s,border-color .2s,box-shadow .2s,transform .2s}
.hero-actions .guide-link:hover{background:#347268;border-color:#2e685f;color:#fff;box-shadow:0 6px 16px #35776f2c;transform:translateY(-1px)}
@media(max-width:680px){.hero-actions{gap:10px;max-width:452px;margin:auto}.hero-actions>a{min-width:0;width:auto;min-height:44px;flex:1;padding:10px 8px;font-size:11px}.hero-actions .primary{flex:1.35}.hero-actions .primary svg{display:none}}
@media(prefers-reduced-motion:reduce){.hero-actions .guide-link{transition:none;transform:none!important}}
/* Readable supporting text and restrained contrast. */
.lead{color:#768092}.tool-tagline{color:#727e91}.tool-description{font-size:12px;color:#727e91;min-height:45px}.release-line{font-size:11px;color:#8892a3}.tools-caption{color:#808b9e}.steps h3{font-size:13px}.steps p{font-size:12px;color:#788499}.release-intro{font-size:12px;color:#788499}.release-card ul{font-size:12px;color:#697991}.release-foot{font-size:10px;color:#7c8ca4}.faq summary{font-size:12px;color:#69778d}.faq details p{font-size:12px;color:#748198}.guide-band p{font-size:11px;color:#8290a4}.nav-caption{color:#8490a1}

/* Mac distribution, same visual language as the existing download page. */
.hero-actions{flex-wrap:wrap;gap:14px}.mac-download{background:linear-gradient(180deg,#53637f,#414f68);border-color:#414f68;box-shadow:inset 0 1px 0 #ffffff26,0 4px 9px #414f681c}.preview-tag{font-size:10px;border:1px solid #ffffff50;border-radius:4px;padding:0 5px;line-height:1.6}.mac-note{font-size:11px;color:#7d8493;margin:10px 0 0}.mac-note a{color:#5172e2;text-decoration:underline;text-underline-offset:3px}#mac-install{scroll-margin-top:24px}@media(max-width:540px){.hero-actions{flex-direction:column;gap:12px}.hero-actions .primary{min-width:235px}.mac-note{max-width:300px;margin:12px auto 0;line-height:1.8}}
/* Comfortable reading: preserve headings, strengthen supporting text. */
body{font-weight:450}
.nav-caption,.eyebrow{font-size:13px;color:#60718b}
.nav-guide{font-size:14px;color:#52647e;font-weight:500}
.lead{font-size:16px;color:#5e6b80}
.hero-actions>a{font-size:14px;font-weight:700;min-height:48px;width:240px}
.preview-tag{font-size:12px;font-weight:650}
.release-line,.mac-note{font-size:13px;color:#627087}
.tool-index{font-size:12px;color:#77869b}
.version{font-size:12px;color:#586b86;font-weight:500}
.tool-tagline,.tool-description{font-size:14px;color:#56677f;line-height:1.85}
.tools-caption,.tools-caption>span:last-child{font-size:12px;color:#65758c}
.eyebrow-label{font-size:12px;color:#687990}
.text-link,.section-heading>.text-link{font-size:13px;color:#516887;font-weight:500}
.steps p,.release-intro,.release-card ul,.faq details p{font-size:14px;color:#56677f;line-height:1.9}
.step-number{font-size:14px;color:#667fa8}
.release-card .eyebrow-label{font-size:11px;color:#657793}
.release-foot{font-size:12px;color:#61748e}
.faq summary{font-size:14px;color:#4e617d;font-weight:550}
.hash{font-size:11px;color:#5e718d}
.guide-band p{font-size:13px;color:#62738b}
footer{font-size:12px;color:#64738a;flex-wrap:wrap}
.footer-platform{font-size:11px;color:#64738a}
.mock-top,.layer-row{font-size:11px;color:#5d6d85}
.mock-state,.layer-row small,.asset-tile small,.export-files,.measure-width span,.measure-height span,.color-label{font-size:10px;color:#657794}
.measure-button{font-size:16px;font-weight:550}
@media(max-width:860px) and (min-width:681px){.tool-heading{flex-wrap:wrap}.tool-tagline{min-height:52px}}
@media(max-width:680px){.lead{font-size:14px}.hero-actions>a{font-size:13px;font-weight:700}.version{font-size:12px}.footer-platform{font-size:10px}.section-heading{gap:14px;flex-wrap:wrap}}
@media(max-width:540px){.hero-actions>a{width:245px;min-width:245px;flex:none}}
/* Selected headings: stronger weight without changing their size. */
.hero h1,.hero h1 span,.tool-heading h2,.install .section-heading h2{font-weight:700}