/* Video reference: restrained editorial typography + engineering grid. */
/* Hallmark · pre-emit critique: P5 H5 E5 S5 R5 V4 */
@font-face{font-family:'Tujin Black';src:url('assets/title-black-v2.woff2') format('woff2');font-weight:900;font-style:normal;font-display:swap}
@font-face{font-family:'Tujin Latin';src:url('assets/latin-black.woff2') format('woff2');font-weight:900;font-style:normal;font-display:swap}
:root{color-scheme:light;--paper:#fefefd;--ink:#101010;--muted:#757570;--subtle:#a1a19b;--line:#d6d6d1;--grid:rgba(30,30,25,.045);--soft:#f2f2ed;--accent:#f24813;--accent-ink:#fff;--font-sans:'Microsoft YaHei','PingFang SC','Noto Sans SC',Arial,sans-serif;--font-mono:'Courier New',monospace;--font-display:'Tujin Black',var(--font-sans);--font-latin:'Tujin Latin','Arial Black',Arial,sans-serif;--gutter:clamp(22px,1.9vw,42px)}
:root[data-theme='dark']{color-scheme:dark;--paper:#151614;--ink:#f0f0eb;--muted:#92938c;--subtle:#66685f;--line:#3c3e36;--grid:rgba(220,225,200,.035);--soft:#1b1d18}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:80px;overflow-x:clip}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font-sans);-webkit-font-smoothing:antialiased;overflow-x:clip;transition:background-color .35s,color .35s}button,input,textarea,select{font:inherit}a{color:inherit;text-decoration:none}button{border:0;border-radius:0;background:none;color:inherit;cursor:pointer}a,button,input,textarea{-webkit-tap-highlight-color:transparent}button:active{transform:translateY(1px)}a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--accent);outline-offset:5px}[hidden]{display:none!important}::selection{background:var(--accent);color:var(--accent-ink)}main{outline:0;min-height:70svh;background-image:linear-gradient(to right,var(--grid) 1px,transparent 1px);background-size:25% 100%;background-position:var(--gutter) 0}.skip-link{position:fixed;top:-80px;left:20px;z-index:100;background:var(--ink);color:var(--paper);padding:15px}.skip-link:focus{top:12px}
.site-header{position:sticky;top:0;height:58px;z-index:30;background:var(--paper);padding:0 var(--gutter);display:grid;grid-template-columns:25% 1fr auto;align-items:center;border-bottom:1px solid var(--line);transition:background-color .35s}.brand{display:flex;align-items:center;gap:29px;width:max-content;white-space:nowrap}.brand-mark{display:block;flex:0 0 auto;width:40px;aspect-ratio:1238/860;background:currentColor;-webkit-mask:url('assets/brand-logo.png') center/contain no-repeat;mask:url('assets/brand-logo.png') center/contain no-repeat}.brand #brand-name{font-size:13px;font-weight:700}.desktop-nav{display:flex;align-items:center;gap:26px;height:100%}.desktop-nav a{display:flex;align-items:center;height:100%;position:relative;font-size:12px;white-space:nowrap;letter-spacing:.04em;transition:color .2s}.desktop-nav a:hover,.desktop-nav a[aria-current='page']{color:var(--accent)}.header-actions{display:flex;align-items:center;gap:22px}.languages{display:flex;align-items:center;gap:7px;font-family:var(--font-mono);font-size:10px;white-space:nowrap}.languages button{padding:8px 0;color:var(--muted);font-size:10px}.languages button[aria-pressed='true'],.languages button:hover{color:var(--accent)}.languages>span{color:var(--line)}.theme-toggle{width:26px;height:32px;display:grid;place-items:center}.theme-toggle>span{width:12px;height:12px;border:1px solid var(--ink);border-radius:50%;background:linear-gradient(90deg,var(--ink) 50%,transparent 50%);transition:transform .4s}.theme-toggle:hover>span{transform:rotate(180deg)}.menu-toggle{display:none;flex-direction:column;justify-content:center;gap:6px;width:24px;height:30px;padding:2px}.menu-toggle i{width:20px;height:1px;background:var(--ink);transition:transform .2s}.menu-toggle[aria-expanded='true'] i:first-child{transform:translateY(3.5px) rotate(45deg)}.menu-toggle[aria-expanded='true'] i:last-child{transform:translateY(-3.5px) rotate(-45deg)}.mobile-nav{position:absolute;top:57px;left:0;right:0;background:var(--paper);padding:20px var(--gutter) 28px;border-bottom:1px solid var(--line)}.mobile-nav a{display:flex;justify-content:space-between;align-items:center;font-size:21px;padding:16px 0;border-bottom:1px solid var(--line)}.mobile-nav a>span{color:var(--muted);font:11px var(--font-mono)}
.ruler{height:8px;position:relative;display:flex;justify-content:space-between;align-items:end;padding:0 var(--gutter);font:4px var(--font-mono);letter-spacing:.08em;color:var(--subtle);background:repeating-linear-gradient(90deg,transparent 0,transparent calc(2% - 1px),var(--line) calc(2% - 1px),var(--line) 2%) center top/calc(100% - 2 * var(--gutter)) 3px no-repeat}.ruler span{background:var(--paper);padding-top:3px}
.hero{padding:0 var(--gutter);position:relative;min-height:calc(100svh - 66px);display:flex;flex-direction:column;isolation:isolate}.hero-system{height:31px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:20px;font:9px var(--font-mono);letter-spacing:.06em;color:var(--muted)}.hero-system .system-center{position:absolute;left:50%;transform:translateX(-50%);letter-spacing:12px}.hero-system>span:last-child{font-size:8px}.hero-stage{flex:1;display:flex;flex-direction:column;justify-content:flex-end;min-height:450px;padding-top:140px;position:relative}.hero-register{display:flex;justify-content:space-between;align-items:center;color:var(--subtle);font:5px var(--font-mono);letter-spacing:.1em;margin-bottom:44px}.register-left{display:flex;align-items:center;gap:10px}.cross{position:relative;display:inline-block;width:9px;height:9px;flex-shrink:0}.cross:before,.cross:after{content:'';position:absolute;background:var(--muted)}.cross:before{height:1px;width:9px;left:0;top:4px}.cross:after{height:9px;width:1px;left:4px;top:0}
.hero-title{margin:0 0 23px -4px;font-family:var(--font-display);font-weight:900;font-style:normal;letter-spacing:-.065em;font-size:clamp(72px,8.9vw,178px);line-height:.99;min-width:0}.line-mask{display:block;overflow:hidden;padding:.04em 0 .07em;margin-bottom:-.07em}.line-inner{display:block;width:max-content;white-space:nowrap;transform-origin:left bottom}.hero-title .punctuation{display:inline-block;margin-left:.045em;vertical-align:.02em}.punctuation.ring{width:.32em;height:.32em;border:.078em solid var(--accent);border-radius:50%}.punctuation.square{width:.16em;height:.16em;background:var(--accent);vertical-align:.02em;margin-left:.07em}.hero-title .accent-word{color:var(--accent)}.page-enter .line-inner{animation:title-enter .9s cubic-bezier(.16,1,.3,1) both}.page-enter .line-mask:nth-child(2) .line-inner{animation-delay:.11s}.technical-rule{display:flex;align-items:center;gap:8px;height:8px;flex-shrink:0;color:var(--subtle)}.technical-rule i{height:1px;flex:1;background:var(--line);position:relative}.technical-rule i:first-child:before,.technical-rule i:last-child:after{content:'';height:7px;width:1px;background:var(--muted);position:absolute;top:-3px;left:0}.technical-rule i:last-child:after{left:auto;right:0}.technical-rule>span{font:5px var(--font-mono);letter-spacing:.15em;white-space:nowrap}.hero-bottom{min-height:108px;display:grid;grid-template-columns:1fr 1fr 22px;gap:25px;align-items:end;padding:24px 0 26px}.hero-description{font-size:12px;line-height:1.9;max-width:350px;margin:0}.hero-note{justify-self:end;text-align:right;color:var(--muted);font-size:9px;line-height:1.8;letter-spacing:.06em;max-width:210px;white-space:pre-line}.hero-scroll{justify-self:end;display:flex;align-items:center;gap:12px;writing-mode:vertical-rl;font:8px var(--font-mono);letter-spacing:.12em;color:var(--muted);height:61px}.hero-scroll:after{content:'↓';font-size:14px}.hero-cta{display:flex;justify-content:space-between;align-items:center;gap:30px;width:max-content;border:1px solid var(--line);padding:11px 15px;font-size:11px;margin-top:20px;transition:background .2s,color .2s}.hero-cta:hover{background:var(--ink);color:var(--paper)}.hero-cta>span{font-size:16px}.hero--inner{min-height:550px}.hero--inner .hero-stage{flex:0;justify-content:flex-start;min-height:0;padding-top:42px}.hero--inner .hero-register{margin-bottom:8px}.hero--inner .hero-title{margin-top:25px;margin-bottom:26px}.hero--inner .hero-bottom{flex:1;align-items:start;min-height:155px;padding-top:27px}.hero--inner .hero-scroll,.hero--inner .hero-note{align-self:start;margin-top:12px}
.hero--practice{min-height:calc(100svh - 66px)}.hero--practice .hero-stage{padding-top:205px}.practice-tabs{position:absolute;top:66px;left:50%;transform:translateX(-50%);display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line);z-index:2;width:350px}.practice-tabs button{padding:17px 14px;font-size:17px;font-weight:800;white-space:nowrap;display:flex;justify-content:center;align-items:baseline;gap:12px}.practice-tabs button+button{border-left:1px solid var(--line)}.practice-tabs button[aria-pressed='true']{background:var(--accent);color:var(--accent-ink)}.practice-tabs small{font:6px var(--font-mono);opacity:.65}.hero--practice .hero-bottom{min-height:150px;align-items:start;padding-top:26px}.hero--practice .hero-note{margin-top:15px}.hero--practice .hero-scroll{margin-top:15px}
html[lang='en'] .hero-title{font-family:var(--font-latin);font-size:clamp(68px,8.2vw,158px);letter-spacing:-.045em;line-height:.96}html[lang='en'] .hero--industries .hero-title{font-size:clamp(60px,7vw,145px)}html[lang='en'] .brand #brand-name{font:10px var(--font-latin);letter-spacing:-.02em}.hero--inner.hero--services .hero-title{margin-bottom:35px}
.site-footer{padding:32px var(--gutter) 25px;border-top:1px solid var(--line)}.footer-top{display:flex;align-items:center;justify-content:space-between;gap:30px;padding-bottom:30px}.footer-logo{display:inline-flex;align-items:center;gap:14px;font-weight:700;font-size:14px;letter-spacing:.02em}.footer-logo .brand-mark{width:34px}.footer-nav{display:flex;gap:25px;flex-wrap:wrap}.footer-nav a,.footer-top>a{font-size:10px;white-space:nowrap}.footer-nav a:hover,.footer-top>a:hover{color:var(--accent)}.footer-bottom{display:flex;justify-content:space-between;gap:25px;padding-top:18px;border-top:1px solid var(--line);color:var(--muted);font:9px/1.8 var(--font-mono)}.footer-bottom p{margin:0}.footer-bottom p:nth-child(2){max-width:430px}.cursor-cross{position:fixed;left:0;top:0;pointer-events:none;z-index:90;width:14px;height:14px;opacity:0;transition:opacity .2s;transform:translate(-50%,-50%)}.cursor-cross:before,.cursor-cross:after{content:'';position:absolute;background:var(--accent)}.cursor-cross:before{width:14px;height:1px;left:0;top:6px}.cursor-cross:after{height:14px;width:1px;left:6px;top:0}.toast{position:fixed;bottom:25px;left:50%;transform:translate(-50%,15px);opacity:0;pointer-events:none;background:var(--ink);color:var(--paper);max-width:calc(100% - 36px);padding:14px 22px;font-size:12px;line-height:1.6;z-index:95;transition:opacity .2s,transform .2s}.toast.is-visible{opacity:1;transform:translate(-50%,0)}[data-reveal]{opacity:1}.reveal-ready [data-reveal]{opacity:0;transform:translateY(25px);transition:opacity .75s,transform .75s}.reveal-ready [data-reveal].is-visible{opacity:1;transform:none}.no-script{padding:80px var(--gutter)}
@keyframes title-enter{from{transform:translateY(110%);opacity:.3}to{transform:translateY(0);opacity:1}}
@media(min-width:1700px){.site-header{height:68px}.hero{min-height:calc(100svh - 76px)}.hero--inner{min-height:680px}.hero-description{font-size:14px;max-width:370px}.desktop-nav a{font-size:14px}.hero-system{height:40px}.hero-bottom{min-height:140px}.hero--inner .hero-stage{padding-top:65px}.practice-tabs{top:90px;width:400px}}
@media(max-width:1100px){.site-header{grid-template-columns:22% 1fr auto}.desktop-nav{gap:17px}.desktop-nav a{font-size:11px}.header-actions{gap:14px}.brand{gap:17px}.hero-system .system-center{display:none}}
@media(max-width:767px){.site-header{grid-template-columns:1fr auto;height:58px}.desktop-nav{display:none}.brand .brand-mark{width:34px}.brand{gap:18px}.brand #brand-name{font-size:13px}.header-actions{gap:15px}.languages{gap:6px}.languages button{font-size:10px}.menu-toggle{display:flex}.ruler{height:7px}.ruler span:nth-child(2n){visibility:hidden}main{background-size:50% 100%}.hero{min-height:calc(100svh - 65px)}.hero-system{height:29px;font-size:8px}.hero-system>span:last-child{font-size:7px}.hero-stage{min-height:350px;padding-top:100px}.hero-register{font-size:4px;margin-bottom:35px}.hero-title{font-size:12.3vw;line-height:1.08;letter-spacing:-.075em;margin-left:-2px;margin-bottom:21px}.hero-bottom{grid-template-columns:1fr 17px;gap:20px;min-height:145px;padding:25px 0}.hero-description{font-size:12px;max-width:285px;line-height:1.9}.hero-note{display:none}.hero-scroll{grid-column:2;grid-row:1;height:70px;font-size:7px}.hero--inner{min-height:530px}.hero--inner .hero-stage{padding-top:42px}.hero--inner .hero-title{margin-top:30px;margin-bottom:28px}.hero--inner .hero-bottom{min-height:170px}.hero--inner .hero-register{margin-bottom:12px}.hero--practice{min-height:calc(100svh - 65px)}.hero--practice .hero-stage{padding-top:230px}.hero--practice .hero-register{margin-bottom:28px}.practice-tabs{top:50px;width:calc(100% - 44px);max-width:340px}.practice-tabs button{font-size:14px;padding:16px 10px;gap:8px}.practice-tabs small{font-size:5px}.hero--practice .hero-title{font-size:18vw;line-height:1.02}.hero--practice .hero-bottom{min-height:165px}.hero-cta{font-size:11px;margin-top:17px;padding:10px 13px}.technical-rule>span{font-size:4px}.footer-top{flex-wrap:wrap;gap:22px}.footer-nav{order:3;width:100%;gap:16px}.footer-top>a{margin-left:auto}.footer-bottom{flex-wrap:wrap;gap:10px;font-size:8px}.footer-bottom p:nth-child(2){width:100%;order:3}.cursor-cross{display:none}html[lang='en'] .hero-title{font-size:12vw;line-height:1.05;letter-spacing:-.045em}html[lang='en'] .hero--practice .hero-title{font-size:17vw}html[lang='en'] .hero--industries .hero-title{font-size:9.8vw}html[lang='en'] .brand #brand-name{font-size:9px}}
@media(max-width:374px){.header-actions{gap:10px}.brand{gap:12px}.hero-stage{min-height:320px}.hero-description{font-size:11px}.hero-system>span:last-child{display:none}.hero--inner{min-height:490px}.hero--practice .hero-stage{padding-top:215px}.languages{gap:4px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}.reveal-ready [data-reveal]{opacity:1;transform:none}.cursor-cross{display:none}}
html[lang='en']{--font-display:var(--font-latin)}
.pc-stats strong,.pc-calculator-result>strong{font-family:var(--font-latin)}
.pc-stats .pc-counter{color:var(--ink)}
.reveal-ready .pc-row-wrap[data-reveal]{transform:none}
@media(max-width:767px){.pc-calculator{grid-template-columns:minmax(0,1fr)}.pc-calculator-controls,.pc-calculator-result{min-width:0}.pc-calculator-result>strong{font-size:clamp(38px,10vw,70px);overflow-wrap:anywhere}.pc-closing-meta{flex-wrap:wrap}.pc-section-title h2{overflow-wrap:normal}}
.practice-tabs{grid-template-columns:repeat(2,minmax(0,1fr))}.practice-tabs button{min-width:0}
html[lang='en'] .practice-tabs button{font-size:12px}
@media(max-width:767px){html[lang='en'] .practice-tabs button{font-size:clamp(9px,2.8vw,12px);padding-inline:8px;gap:6px}html[lang='en'] .hero--token .hero-title{font-size:10vw}}
@font-face{font-family:'Tujin Black';src:url('assets/title-extra.woff2') format('woff2');font-weight:900;font-style:normal;font-display:swap;unicode-range:U+71DF}
@media(min-width:768px){.hero--practice .hero-stage{padding-top:150px}}

/* Keep the enlarged navigation readable on narrow tablets. */
@media(min-width:768px) and (max-width:900px){.site-header{grid-template-columns:1fr auto}.desktop-nav{display:none}.menu-toggle{display:flex}}