/* Zhuyan — monochrome, precise, research-led. */
:root{--paper:#fcfcfc;--ink:#0a0a0a;--graphite:#3f3f46;--gray:#626262;--line:#dedede;--soft:#f2f2f2;--body:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;--mono:"SFMono-Regular",Consolas,"Liberation Mono",monospace}
*,*::before,*::after{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:110px}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--body);font-size:1rem;line-height:1.7;-webkit-font-smoothing:antialiased}h1,h2,h3,p{margin:0}h1,h2,h3{font-weight:600}a{color:inherit;text-decoration:none}button{font:inherit;color:inherit;cursor:pointer}img{max-width:100%;display:block}svg{flex-shrink:0}button[hidden], [hidden]{display:none!important}::selection{background:var(--ink);color:var(--paper)}:focus-visible{outline:2px solid currentColor;outline-offset:5px}.container{width:calc(100% - 112px);max-width:1296px;margin-inline:auto}.eyebrow{font-family:var(--mono);font-size:.75rem;line-height:1.7;letter-spacing:.075em;font-weight:400}.skip-link{position:absolute;z-index:100;top:8px;left:16px;padding:12px 20px;background:var(--ink);color:white;transform:translateY(-160%)}.skip-link:focus{transform:translateY(0)}.site-header{position:sticky;top:0;z-index:30;background:rgba(252,252,252,.96);border-bottom:1px solid var(--line)}.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:94px}.brand{display:inline-flex;align-items:center;gap:14px;flex-shrink:0}.brand-type{display:grid;gap:4px;line-height:1.15}.brand-type strong{font-size:1.375rem;letter-spacing:.14em;font-weight:600}.brand-type>span{font-family:Arial,sans-serif;font-size:.75rem;letter-spacing:.035em}.main-nav{display:flex;flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:30px;font-size:.875rem}.main-nav>a{padding:12px 0;white-space:nowrap}.main-nav>a:not(.nav-contact){position:relative}.main-nav>a:not(.nav-contact)::after{content:"";position:absolute;left:0;right:0;bottom:6px;height:1px;background:currentColor;transform:scaleX(0);transform-origin:left;transition:transform .2s}.main-nav>a:hover::after,.main-nav>a[aria-current="location"]::after{transform:scaleX(1)}.main-nav .nav-contact{padding:11px 20px;border:1px solid var(--ink);display:flex;gap:22px;transition:background .2s,color .2s}.nav-contact:hover{background:var(--ink);color:var(--paper)}.menu-toggle{display:none;align-items:center;gap:10px;min-height:44px;background:none;border:0;font-size:.875rem;padding:8px 0 8px 12px}
.hero{padding-top:28px;border-bottom:1px solid var(--line)}.hero-overline{display:flex;justify-content:space-between;gap:20px;color:var(--gray)}.hero-grid{display:grid;grid-template-columns:1.45fr 1fr;gap:68px;padding:55px 0 47px;align-items:center}.hero h1{font-size:clamp(2.65rem,5.2vw,4.65rem);line-height:1.25;letter-spacing:-.045em;font-weight:600}.hero-emphasis{display:inline-block;border-bottom:2px solid var(--ink);padding-bottom:4px}.period{letter-spacing:-.5em}.hero-description{font-size:1.125rem;line-height:1.9;color:var(--graphite);margin-top:26px}.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:25px;margin-top:30px}.button{display:inline-flex;align-items:center;justify-content:space-between;gap:28px;min-height:52px;padding:13px 22px;border:1px solid var(--ink);font-size:.9375rem;transition:background .2s,color .2s}.button-dark{color:var(--paper);background:var(--ink)}.button-dark:hover{color:var(--ink);background:var(--paper)}.text-link{display:inline-flex;align-items:center;gap:18px;font-size:.875rem;padding:10px 0;border-bottom:1px solid currentColor}.text-link:hover{color:var(--gray)}.hero-brand-panel{position:relative;background:var(--ink);color:var(--paper);display:flex;flex-direction:column;justify-content:space-between;min-height:476px;padding:26px 28px 28px}.panel-top,.panel-bottom{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.panel-top{font-size:.75rem;font-family:var(--mono);letter-spacing:.07em;color:#bababa;padding-bottom:17px;border-bottom:1px solid #3d3d3d}.hero-symbol{height:270px;width:auto;align-self:center;margin:12px 0 20px}.panel-bottom{padding-top:20px;border-top:1px solid #3d3d3d;font-size:.9375rem;line-height:1.8}.panel-index{font: .75rem/1.8 var(--mono);text-align:right;color:#b4b4b4}.hero-bottom{display:flex;justify-content:space-between;gap:20px;align-items:center;border-top:1px solid var(--line);padding:21px 0 22px;color:var(--gray)}.hero-bottom p{font-size:.875rem}
.section{padding:96px 0}.section-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:40px;margin-bottom:45px}.section-index{color:var(--gray);margin-bottom:22px}h2{font-size:clamp(2rem,3.3vw,2.875rem);line-height:1.4;letter-spacing:-.025em}.section-lead{color:var(--gray);font-size:1rem;line-height:1.9;padding-bottom:5px;max-width:370px}.capability-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));border-left:1px solid var(--line);border-top:1px solid var(--line)}.capability{padding:34px 38px 30px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}.card-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;color:var(--gray)}.icon{width:32px;height:32px;stroke:var(--ink);stroke-width:1.25;stroke-linejoin:round;stroke-linecap:round}.capability h3{font-size:1.5rem;margin-bottom:13px;line-height:1.5}.capability>p{color:var(--graphite);max-width:470px;min-height:3.4em}.deliverable{margin-top:26px;padding-top:18px;border-top:1px solid var(--line);display:flex;gap:25px;align-items:baseline}.deliverable>span{color:var(--gray);font-size:.875rem;flex-shrink:0}.deliverable p{font-size:1rem}.foundation{display:grid;grid-template-columns:1fr 1.4fr auto;align-items:center;gap:30px;margin-top:28px;padding:28px 32px;background:var(--soft)}.foundation .eyebrow{color:var(--gray);display:block;margin-bottom:6px}.foundation h3{font-size:1.125rem}.foundation>p{font-size:1rem;line-height:1.85;color:var(--graphite)}
.workflow{background:var(--ink);color:var(--paper)}.workflow .section-index,.workflow .section-lead{color:#b6b6b6}.workflow-list{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));list-style:none;padding:0;margin:58px 0 0;border-top:1px solid #464646}.workflow-list li{padding:27px 24px 10px 0}.workflow-list li+li{border-left:1px solid #383838;padding-left:24px}.step-number{font:400 2.75rem/1 var(--mono);letter-spacing:-.08em;color:#a9a9a9;display:block;margin-bottom:37px}.workflow-list h3{font-size:1.25rem;margin-bottom:13px}.workflow-list p{font-size:1rem;line-height:1.85;color:#bdbdbd;min-height:5.55em}.step-result{display:block;border-top:1px solid #383838;padding-top:18px;margin-top:30px;font-size:.875rem;color:#e6e6e6}.workflow-note{display:flex;justify-content:space-between;gap:20px;padding-top:26px;margin-top:42px;border-top:1px solid #464646;color:#b6b6b6}.workflow-note p{font-size:.875rem}
.solutions{border-bottom:1px solid var(--line)}.solution-list{border-top:1px solid var(--ink)}.solution-row{display:grid;grid-template-columns:54px 240px 1fr auto;align-items:center;gap:26px;border-bottom:1px solid var(--line);padding:30px 0}.solution-number{font:1rem var(--mono);color:var(--gray);align-self:start;padding-top:8px}.solution-row h3{font-size:1.5rem;line-height:1.5;margin-bottom:5px}.solution-row .eyebrow{color:var(--gray);letter-spacing:.025em}.solution-row>p{color:var(--graphite);padding-right:24px}.scenario-link{display:flex;gap:20px;align-items:center;font-size:.875rem;white-space:nowrap;padding:12px 0}.scenario-link:hover{text-decoration:underline;text-underline-offset:6px}
.about-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:100px}.about-intro{color:var(--graphite);max-width:435px;margin:26px 0 20px;line-height:1.9}.values article+article{margin-top:30px;padding-top:30px;border-top:1px solid var(--line)}.value-key{display:flex;align-items:center;gap:18px;font-size:2rem;line-height:1.4;margin-bottom:14px}.value-key>span{font:.75rem var(--mono);color:var(--gray);letter-spacing:.08em}.values h3{font-size:1.25rem;margin-bottom:11px}.values p{color:var(--graphite);max-width:450px}.why{margin-top:70px;padding-top:30px;border-top:1px solid var(--line);display:grid;grid-template-columns:1fr 1.65fr;gap:40px}.why .eyebrow{color:var(--gray);margin-bottom:10px}.why h3{font-size:1.25rem}.friction-list{display:grid;grid-template-columns:1fr 1fr;gap:16px 28px}.friction-list p{font-size:.875rem;color:var(--graphite)}.friction-list span{display:block;color:var(--gray);font-size:.875rem;margin-bottom:3px}
.contact{background:var(--ink);color:var(--paper)}.contact .section-index{color:#b6b6b6}.contact-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:70px;align-items:center}.contact h2{font-size:clamp(2rem,3.05vw,2.75rem)}.contact-grid>div>p:not(.eyebrow){color:#b6b6b6;margin-top:23px}.contact-email{display:flex;justify-content:space-between;align-items:center;gap:14px;padding-bottom:18px;border-bottom:1px solid #777;font-size:clamp(1.2rem,2vw,1.75rem);line-height:1.5;overflow-wrap:anywhere;letter-spacing:-.025em}.contact-email:hover{color:#c9c9c9}.contact-action>p{font-size:.875rem;line-height:1.8}.copy-email{padding:8px 0;margin-top:15px;background:none;border:0;border-bottom:1px solid #777;font-size:.875rem;min-height:44px}.copy-status{display:block;min-height:1.7em;font-size:.875rem;margin-top:8px;color:#c9c9c9}
.site-footer{padding:40px 0 22px}.footer-main{display:flex;align-items:center;gap:45px;padding-bottom:36px}.footer-main>p{font-size:.875rem;color:var(--gray)}.footer-links{display:flex;gap:23px;margin-left:auto;align-items:center;font-size:.875rem}.footer-links a{padding:10px 0;white-space:nowrap}.footer-links a:hover{text-decoration:underline;text-underline-offset:5px}.footer-bottom{border-top:1px solid var(--line);padding-top:20px;display:flex;justify-content:space-between;gap:18px;color:var(--gray);font-size:.75rem}.footer-bottom a{white-space:nowrap}
/* Brand assets */
.brand-hero{padding:78px 0 58px;border-bottom:1px solid var(--line)}.brand-hero h1{font-size:clamp(2.8rem,6vw,5rem);line-height:1.25;letter-spacing:-.03em;margin:23px 0}.brand-hero h1>span{font-size:.58em;font-weight:400;letter-spacing:-.025em}.brand-hero p:last-child{color:var(--graphite);font-size:1.125rem;max-width:660px}.brand-section{padding:70px 0;border-bottom:1px solid var(--line)}.brand-section .section-heading{margin-bottom:30px}.brand-intro{color:var(--graphite);max-width:680px;margin-bottom:32px}.lockup-grid{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--line);border-left:1px solid var(--line)}.lockup-card{position:relative;border-right:1px solid var(--line);border-bottom:1px solid var(--line);padding:28px 32px 20px;display:flex;flex-direction:column}.lockup-card.dark{background:var(--ink);color:var(--paper)}.lockup-stage{min-height:230px;display:flex;align-items:center;justify-content:center;padding:25px 30px}.lockup-stage img{width:100%;max-width:330px;height:150px;object-fit:contain}.lockup-stage.vertical img{height:180px;max-width:210px}.lockup-stage.symbol img{height:165px;width:auto}.lockup-caption{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:14px;border-top:1px solid var(--line);font-size:.875rem}.dark .lockup-caption{border-color:#484848}.download-link{display:inline-flex;align-items:center;gap:12px;padding:10px 0;white-space:nowrap;font-size:.875rem}.download-link:hover{text-decoration:underline;text-underline-offset:4px}.brand-rules{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:38px}.brand-rules h3{font-size:1.25rem;margin-bottom:15px}.brand-rules p{font-size:1rem;color:var(--graphite);line-height:1.9}.palette{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:15px}.swatch{border:1px solid var(--line)}.swatch-color{height:100px;border-bottom:1px solid var(--line)}.swatch-info{padding:16px}.swatch-info h3{font-size:1rem}.swatch-info p{font:.875rem/1.8 var(--mono);color:var(--gray);margin-top:5px}.type-note{margin-top:30px;color:var(--graphite);max-width:800px}.type-note strong{font-weight:600;display:block;color:var(--ink);margin-bottom:5px}.legacy{margin-top:30px;border:1px solid var(--line)}.legacy summary{padding:18px 24px;cursor:pointer;font-size:1rem}.legacy-content{padding:0 24px 20px}.legacy-content>p{font-size:.875rem;color:var(--gray);margin-bottom:15px}.legacy-content>a{display:flex;justify-content:space-between;gap:16px;font-size:.875rem;border-top:1px solid var(--line);padding:16px 0;overflow-wrap:anywhere}.brand-download-note{margin-top:28px;font-size:.875rem;color:var(--gray)}
@media(min-width:1600px){.hero-grid{gap:110px}.hero-brand-panel{min-height:500px}}
@media(max-width:1100px){.container{width:calc(100% - 72px)}.main-nav{gap:20px}.hero-grid{gap:35px}.hero h1{font-size:clamp(2.5rem,5.2vw,3.75rem)}.hero-brand-panel{min-height:445px;padding:23px}.hero-symbol{height:240px}.section{padding:78px 0}.foundation{grid-template-columns:1fr 1.3fr;gap:20px}.foundation .text-link{justify-self:start;grid-column:2}.solution-row{grid-template-columns:35px 190px 1fr auto;gap:20px}.solution-row>p{padding-right:0}.about-grid{gap:65px}.workflow-list li{padding-right:16px}.workflow-list li+li{padding-left:16px}.workflow-list p{min-height:7.4em}.workflow-list h3{font-size:1.125rem}.contact-grid{gap:35px;grid-template-columns:1.2fr 1fr}.footer-main{flex-wrap:wrap;gap:25px}.footer-main>p{flex:1}.footer-links{margin-left:0}}
@media(max-width:850px){.container{width:calc(100% - 48px)}.header-inner{min-height:78px;flex-wrap:wrap;gap:0}.brand img{width:38px;height:40px}.brand-type strong{font-size:1.2rem}.brand-type>span{font-size:.75rem}.js .menu-toggle{display:flex}.main-nav{width:100%;justify-content:flex-start;display:flex;flex-wrap:wrap;gap:10px 22px;padding:0 0 16px;font-size:.875rem}.main-nav .nav-contact{padding:8px 15px}.js .main-nav{display:none}.js .main-nav.is-open{display:flex;border-top:1px solid var(--line);padding-top:12px}.hero-overline .eyebrow:last-child{display:none}.hero-grid{grid-template-columns:1.3fr 1fr;gap:25px;padding:42px 0}.hero h1{font-size:clamp(2.5rem,5.2vw,3.2rem)}.hero-brand-panel{min-height:395px;padding:20px}.hero-symbol{height:215px}.panel-bottom{font-size:.875rem}.panel-index{display:none}.hero-description{font-size:1rem}.hero-actions{gap:14px}.hero-actions .button{padding:12px 15px;gap:12px}.section-heading{gap:25px;align-items:flex-start}.section-lead{max-width:270px}.capability{padding:27px}.capability h3{font-size:1.35rem}.deliverable{display:block}.deliverable p{margin-top:5px}.workflow-list{grid-template-columns:1fr;gap:0;margin-top:35px}.workflow-list li,.workflow-list li+li{display:grid;grid-template-columns:55px 1fr;gap:20px;padding:24px 0;border-left:0;border-bottom:1px solid #383838}.step-number{font-size:2rem;margin:5px 0 0}.workflow-list li>div{display:grid;grid-template-columns:150px 1fr;gap:6px 18px;align-items:start}.workflow-list h3{margin:0;font-size:1.125rem}.workflow-list p{min-height:0}.step-result{margin:0;padding:0;border:0;grid-column:2;color:#aaa}.workflow-note{margin-top:24px;border:0;padding:0}.solution-row{grid-template-columns:30px 175px 1fr;gap:18px}.scenario-link{grid-column:3;padding:0}.solution-row>p{align-self:start}.about-grid{gap:45px}.why{grid-template-columns:1fr;gap:25px;margin-top:50px}.friction-list{grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}.contact-grid{grid-template-columns:1fr;gap:35px}.contact-action{max-width:520px}.contact-email{font-size:1.625rem}.contact-action>p{margin-top:15px!important}.footer-bottom{flex-wrap:wrap}.footer-bottom>span:nth-child(2){display:none}.brand-rules{gap:25px}.lockup-stage{padding:24px 0}.lockup-card{padding:20px}.palette{gap:10px}.swatch-info{padding:12px}.swatch-info p{font-size:.75rem}}
@media(max-width:600px){.container{width:calc(100% - 40px)}html{scroll-padding-top:95px}.header-inner{min-height:76px}.hero{padding-top:21px}.hero-overline .eyebrow{font-size:.75rem;letter-spacing:.025em}.hero-grid{grid-template-columns:1fr;gap:34px;padding:29px 0 28px}.hero h1{font-size:clamp(2.55rem,9.25vw,3.6rem);letter-spacing:-.045em;line-height:1.27}.hero-description{margin-top:22px;line-height:1.9}.hero-actions{margin-top:23px;gap:20px}.hero-actions .button{padding:12px 18px;gap:20px}.hero-brand-panel{min-height:0;display:grid;grid-template-columns:1fr 110px;gap:0 20px;padding:20px 24px}.panel-top{grid-column:1;display:block;border:0;padding:0;align-self:start}.panel-top>span{display:block;margin-bottom:5px}.hero-symbol{grid-column:2;grid-row:1/3;height:130px;margin:0;justify-self:center}.panel-bottom{grid-column:1;align-self:end;border:0;padding-top:13px;font-size:.875rem}.hero-bottom{align-items:flex-start;padding:18px 0}.hero-bottom .eyebrow{display:none}.hero-bottom p{font-size:.875rem}.section{padding:60px 0}.section-heading{display:block;margin-bottom:30px}.section-index{margin-bottom:17px}h2{font-size:1.95rem;line-height:1.45;letter-spacing:-.035em}.section-lead{margin-top:20px;max-width:100%}.section-lead br{display:none}.capability-grid{grid-template-columns:1fr}.capability{padding:27px 24px}.capability>p{min-height:0}.card-top{margin-bottom:15px}.deliverable{display:flex;gap:15px;flex-wrap:wrap;margin-top:22px;padding-top:16px}.deliverable p{margin:0}.foundation{display:block;padding:25px;margin-top:23px}.foundation>p{margin:15px 0 8px}.foundation .text-link{margin-top:4px}.desktop-break{display:none}.workflow-list li>div{display:block}.workflow-list li,.workflow-list li+li{grid-template-columns:42px 1fr;gap:16px;padding:24px 0}.workflow-list h3{font-size:1.25rem;margin-bottom:8px}.workflow-list p{font-size:1rem}.step-result{margin-top:13px}.workflow-note{display:block}.workflow-note p{margin-top:10px}.solution-row{grid-template-columns:24px 1fr;gap:13px 17px;padding:27px 0}.solution-row h3{font-size:1.375rem}.solution-number{padding-top:5px}.solution-row>p{grid-column:2}.scenario-link{grid-column:2;justify-self:start;padding:5px 0}.about-grid{grid-template-columns:1fr;gap:40px}.about-intro{margin:20px 0 12px}.values article+article{margin-top:24px;padding-top:24px}.value-key{font-size:1.75rem}.why{margin-top:40px;padding-top:25px}.friction-list{grid-template-columns:1fr 1fr;gap:22px}.contact h2{font-size:1.9rem;letter-spacing:-.045em}.contact-grid{gap:32px}.contact-grid>div>p:not(.eyebrow){margin-top:18px}.contact-email{font-size:clamp(1.15rem,5vw,1.65rem)}.site-footer{padding:30px 0 20px}.footer-main{display:grid;gap:20px;padding-bottom:25px}.footer-links{gap:25px;flex-wrap:wrap}.footer-bottom{gap:12px;font-size:.75rem}.footer-main>p{font-size:.875rem}.brand-hero{padding:45px 0 35px}.brand-hero h1{font-size:3rem;margin:18px 0}.brand-hero p:last-child{font-size:1rem}.brand-section{padding:50px 0}.lockup-grid{grid-template-columns:1fr}.lockup-stage{min-height:220px}.lockup-stage img{max-width:290px}.brand-rules{grid-template-columns:1fr;gap:28px}.palette{grid-template-columns:1fr 1fr}.swatch:last-child{grid-column:1/-1}.swatch-color{height:90px}.swatch:last-child .swatch-color{height:55px}.swatch-info{padding:15px}.swatch-info p{font-size:.875rem}.legacy-content>a{flex-wrap:wrap}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}}