/* Trace Workroom / Public portfolio. No framework, no tracking. */
:root{color-scheme:light;--bg:#f7f4f0;--paper:#fffdfb;--soft:#f0ebe5;--ink:#242321;--muted:#74716c;--line:#ded9d3;--accent:#a94e3e;--accent-strong:#873e32;--accent-soft:#efe1db;--shadow:0 18px 50px rgba(53,40,28,.045);--font:'DM Sans','Noto Sans TC',sans-serif;--mono:'IBM Plex Mono',monospace}
body[data-theme="dark"]{color-scheme:dark;--bg:#181b1e;--paper:#22262a;--soft:#2a2f33;--ink:#f1efea;--muted:#a8a7a2;--line:#41454a;--accent:#da8c7e;--accent-strong:#f0b7a9;--accent-soft:#3b2c2d;--shadow:0 18px 50px rgba(0,0,0,.12)}
body[data-theme="blue"]{color-scheme:light;--bg:#e7ebf0;--paper:#f7f9fb;--soft:#dfe6ed;--ink:#253344;--muted:#657385;--line:#cdd5df;--accent:#a45345;--accent-strong:#844136;--accent-soft:#eadbd7;--shadow:0 18px 50px rgba(34,55,77,.07)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font:400 15px/1.8 var(--font);-webkit-font-smoothing:antialiased;transition:background .3s,color .3s}body,button,a{ -webkit-tap-highlight-color:transparent }a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}button:focus-visible,a:focus-visible{outline:2px solid var(--accent);outline-offset:4px}::selection{background:var(--accent-soft);color:var(--ink)}.noise{pointer-events:none;position:fixed;inset:0;z-index:20;opacity:.13;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' opacity='.13' filter='url(%23n)'/%3E%3C/svg%3E")}.site-header{height:86px;border-bottom:1px solid var(--line);position:sticky;top:0;background:var(--bg);z-index:30;transition:background .3s}.header-inner{height:100%;max-width:1264px;padding:0 52px;margin:auto;display:flex;align-items:center;gap:42px}.brand{display:inline-flex;align-items:center;gap:11px;white-space:nowrap}.brand-mark{width:32px;height:32px;border-radius:8px;display:flex;align-items:center;justify-content:center;background:var(--accent);color:#fff;font-size:24px;font-weight:600;line-height:1;letter-spacing:-3px;padding-right:4px}.brand-dot{color:#f7d7c7}.brand-word{font-size:17px;font-weight:700;letter-spacing:-.9px}.brand-light{font-weight:400;color:var(--muted)}.main-nav{display:flex;gap:25px;margin:auto}.main-nav a{padding:5px 0;color:var(--muted);position:relative;font-size:13px;transition:color .2s}.main-nav a:after{content:"";height:2px;background:var(--accent);position:absolute;bottom:-2px;left:0;right:100%;transition:right .25s}.main-nav a.active,.main-nav a:hover{color:var(--ink)}.main-nav a.active:after{right:0}.header-tools{display:flex;align-items:center;gap:15px}.seg-control{background:var(--soft);border:1px solid var(--line);border-radius:100px;display:flex;padding:3px}.seg-control button{background:transparent;color:var(--muted);border:0;border-radius:20px;padding:4px 10px;font-size:12px;font-weight:600;line-height:1.7}.seg-control button.selected{color:var(--ink);background:var(--paper);box-shadow:0 1px 4px rgba(0,0,0,.08)}.theme-wrap{position:relative}.theme-trigger{border:1px solid var(--line);background:transparent;color:var(--ink);padding:7px 11px;border-radius:50px;display:flex;align-items:center;gap:8px;font-size:12px}.theme-indicator{width:13px;height:13px;border:1px solid var(--line);border-radius:50%;background:linear-gradient(140deg,#a94e3e 0 50%,#f8f0e9 50%)}.chev{font-size:14px;color:var(--muted)}.theme-menu{position:absolute;right:0;top:calc(100% + 9px);border:1px solid var(--line);border-radius:13px;background:var(--paper);box-shadow:var(--shadow);padding:6px;width:160px;z-index:40}.theme-menu[hidden]{display:none}.theme-menu button{width:100%;border:0;background:transparent;display:flex;align-items:center;gap:10px;padding:9px;border-radius:8px;color:var(--ink);font-size:13px;text-align:left}.theme-menu button:hover{background:var(--soft)}.swatch{display:inline-block;width:19px;height:19px;border-radius:50%;border:1px solid var(--line)}.swatch.warm{background:#f7f4f0}.swatch.dark{background:#252a2e}.swatch.blue{background:#a5b3c4}.theme-check{margin-left:auto;color:var(--accent);opacity:0}.theme-menu button.selected .theme-check{opacity:1}
.container{width:min(1100px,calc(100% - 104px));margin-inline:auto}.wide{width:min(1180px,calc(100% - 104px));margin-inline:auto}.eyebrow{font:500 11px/1.4 var(--mono);text-transform:uppercase;letter-spacing:1.65px;color:var(--accent);display:inline-flex;align-items:center;gap:11px}.eyebrow.neutral{color:var(--muted)}.live-dot{display:inline-block;width:7px;height:7px;border-radius:100%;background:var(--accent);box-shadow:0 0 0 4px var(--accent-soft)}h1,h2,h3,p{margin-top:0}h1,h2{letter-spacing:-.055em;font-weight:500}h1{font-size:clamp(43px,6.8vw,88px);line-height:1.26}h2{font-size:clamp(32px,4.1vw,55px);line-height:1.35}.muted{color:var(--muted)}.hero{padding:108px 0 102px;position:relative}.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:75px;align-items:center}.hero h1{margin:31px 0 27px;max-width:760px}.hero h1 .accent{color:var(--accent)}.hero-intro{max-width:575px;color:var(--muted);font-size:17px;line-height:2.05;margin-bottom:36px}.hero-intro strong{color:var(--ink);font-weight:500}.hero-cta{display:flex;align-items:center;flex-wrap:wrap;gap:23px}.btn-primary{display:inline-flex;align-items:center;justify-content:center;gap:32px;padding:13px 21px;background:var(--accent);color:#fff;border-radius:8px;font-size:13px;font-weight:600;min-height:48px;transition:background .25s,transform .25s}.btn-primary:hover{background:var(--accent-strong);transform:translateY(-2px)}.btn-quiet{font-size:13px;color:var(--ink);border-bottom:1px solid var(--line);padding:9px 0;transition:border-color .2s}.btn-quiet:hover{border-color:var(--accent)}.hero-art{width:340px;aspect-ratio:1;display:flex;align-items:center;justify-content:center;position:relative}.orbit{position:absolute;border:1px solid var(--line);border-radius:50%;inset:22px;animation:turn 38s linear infinite}.orbit.two{inset:62px;animation:turn 23s linear infinite reverse}.orbit:before{content:"";width:9px;height:9px;border-radius:50%;background:var(--accent);position:absolute;top:11%;left:15%}.orbit.two:before{width:7px;height:7px;top:80%;left:8%;background:var(--muted)}.art-center{width:155px;height:155px;border-radius:50%;background:var(--accent-soft);display:grid;place-items:center;box-shadow:0 0 0 22px color-mix(in srgb,var(--accent-soft),transparent 62%)}.art-center span{font-size:76px;font-weight:500;letter-spacing:-10px;color:var(--accent);transform:translateX(-5px)}.art-caption{position:absolute;bottom:0;font:11px var(--mono);letter-spacing:.06em;color:var(--muted)}@keyframes turn{to{transform:rotate(360deg)}}.divider{height:1px;background:var(--line)}
.section{padding:112px 0}.section-heading{display:grid;grid-template-columns:270px 1fr;gap:45px;align-items:start;margin-bottom:52px}.section-heading h2{margin:0;max-width:740px}.section-desc{max-width:650px;margin:19px 0 0;color:var(--muted);font-size:15px;line-height:2}.service-list{border-top:1px solid var(--line)}.service{display:grid;grid-template-columns:90px minmax(220px,1fr) minmax(220px,360px) 28px;gap:24px;padding:40px 6px;border-bottom:1px solid var(--line);align-items:start;transition:padding .3s,background .3s}.service:hover{padding-left:17px;background:color-mix(in srgb,var(--accent-soft),transparent 83%)}.service-num{font:12px var(--mono);color:var(--accent);padding-top:10px}.service h3{font-size:25px;font-weight:500;letter-spacing:-.04em;line-height:1.45;margin:0 0 9px}.service p{margin:3px 0;color:var(--muted);line-height:1.95;font-size:14px}.service-arrow{font-size:23px;color:var(--accent);padding-top:6px}.service-tags{margin-top:16px;display:flex;flex-wrap:wrap;gap:7px}.service-tags span{font-size:10px;letter-spacing:.3px;border:1px solid var(--line);color:var(--muted);padding:3px 9px;border-radius:100px}
.feature-section{background:var(--paper);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.feature-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:35px}.feature-head h2{margin:13px 0 0}.text-link{font-size:13px;border-bottom:1px solid var(--accent);padding:5px 0;white-space:nowrap;transition:color .2s}.text-link:hover{color:var(--accent)}.featured-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.feature-card{min-height:310px;border:1px solid var(--line);border-radius:15px;padding:34px;position:relative;overflow:hidden;background:var(--bg);transition:transform .3s,border-color .3s}.feature-card:hover{transform:translateY(-5px);border-color:var(--accent)}.feature-card .card-meta,.case-card .card-meta{color:var(--accent);font:11px var(--mono);letter-spacing:.04em}.feature-card h3{font-size:27px;letter-spacing:-.04em;font-weight:500;line-height:1.42;margin:45px 0 14px}.feature-card p{font-size:13px;max-width:360px;line-height:2;color:var(--muted)}.card-nudge{position:absolute;right:26px;top:25px;width:30px;height:30px;border-radius:50%;border:1px solid var(--line);display:grid;place-items:center;transition:transform .2s}.feature-card:hover .card-nudge{transform:translate(3px,-3px)}.feature-card::after{content:"";position:absolute;width:160px;height:160px;right:-95px;bottom:-95px;background:var(--accent-soft);border-radius:50%}.method-section .method-layout{display:grid;grid-template-columns:1fr 1fr;gap:100px}.method-section h2{margin:18px 0 25px}.method-section p{color:var(--muted);font-size:15px;max-width:450px;line-height:2}.method-steps{border-top:1px solid var(--line)}.method-step{display:flex;gap:20px;padding:23px 0;border-bottom:1px solid var(--line);align-items:start}.method-step b{font-size:13px;font-weight:500}.method-step span{font:11px var(--mono);color:var(--accent);padding-top:5px;min-width:35px}.method-step small{display:block;color:var(--muted);font-size:12px;margin-top:4px}
.work-intro{padding:106px 0 66px}.work-intro h1{font-size:clamp(49px,6vw,76px);margin:25px 0 25px}.work-intro p{font-size:16px;line-height:2;color:var(--muted);max-width:710px}.work-list{padding-bottom:115px}.case-card{display:grid;grid-template-columns:125px minmax(0,1fr) 210px;column-gap:45px;padding:43px 0;border-top:1px solid var(--line);align-items:start}.case-card:last-child{border-bottom:1px solid var(--line)}.case-index{font:11px var(--mono);color:var(--muted);padding-top:7px}.case-card h2{font-size:clamp(24px,3vw,37px);line-height:1.35;margin:14px 0 17px}.case-card p{font-size:14px;color:var(--muted);max-width:620px;line-height:2}.case-card .case-result{font-size:13px;color:var(--ink);margin:20px 0 0}.case-side{padding-top:8px;display:flex;flex-direction:column;align-items:start;gap:22px}.case-side .case-type{font:11px var(--mono);color:var(--muted);line-height:1.8}.case-link{display:inline-flex;align-items:center;gap:12px;border-bottom:1px solid var(--accent);padding:6px 0;font-size:13px;font-weight:500;transition:gap .2s}.case-link:hover{gap:18px}.callout-note{border:1px solid var(--line);background:var(--soft);border-radius:12px;padding:23px 25px;display:flex;gap:20px;align-items:start;margin-top:42px}.callout-note .note-mark{color:var(--accent);font:20px var(--mono)}.callout-note p{margin:0;color:var(--muted);font-size:13px;line-height:2}
.site-footer{background:var(--soft);border-top:1px solid var(--line)}.footer-inner{width:min(1100px,calc(100% - 104px));margin:auto}.footer-lead{padding:100px 0 85px}.footer-lead h2{margin:24px 0 24px;font-size:clamp(35px,4.4vw,60px)}.footer-email{display:inline-flex;align-items:baseline;gap:25px;color:var(--accent);font-size:clamp(17px,2.2vw,26px);letter-spacing:-.025em;border-bottom:1px solid var(--accent);padding:4px 0}.footer-bottom{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:18px;padding:25px 0 30px;border-top:1px solid var(--line);font:10px var(--mono);letter-spacing:.04em;color:var(--muted)}.footer-links{display:flex;gap:24px}.footer-links a:hover,.back-top:hover{color:var(--accent)}.fade-up{animation:rise .65s both}@keyframes rise{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}@media(max-width:960px){.header-inner{padding:0 26px}.container,.wide,.footer-inner{width:calc(100% - 52px)}.hero-grid{grid-template-columns:1fr 220px;gap:20px}.hero-art{width:220px}.orbit{inset:8px}.orbit.two{inset:39px}.art-center{width:100px;height:100px}.art-center span{font-size:50px}.section-heading{grid-template-columns:180px 1fr}.service{grid-template-columns:45px 1fr 1fr 20px;gap:12px}.method-section .method-layout{gap:40px}.case-card{grid-template-columns:55px 1fr 180px;gap:20px}}@media(max-width:700px){.site-header{height:72px}.header-inner{padding:0 20px;gap:0;justify-content:space-between}.brand-word{font-size:15px}.brand-mark{width:29px;height:29px}.main-nav{position:fixed;top:72px;left:0;right:0;justify-content:center;padding:12px;gap:45px;background:var(--bg);border-bottom:1px solid var(--line);z-index:20}.header-tools{gap:7px}.theme-trigger{padding:6px 8px}.theme-trigger [data-i18n="appearance"]{display:none}.container,.wide,.footer-inner{width:calc(100% - 40px)}.hero{padding:125px 0 70px}.hero-grid{display:block}.hero h1{margin-top:20px}.hero-intro{font-size:15px}.hero-art{display:none}.section{padding:79px 0}.section-heading{display:block;margin-bottom:34px}.section-heading .eyebrow{margin-bottom:20px}.section-heading h2{font-size:38px}.service{grid-template-columns:36px minmax(0,1fr) 20px;gap:10px;padding:28px 0}.service:hover{padding-left:0;background:transparent}.service h3{font-size:23px}.service-detail{grid-column:2;grid-row:2}.service-arrow{grid-column:3;grid-row:1}.service-num{padding-top:8px}.featured-grid{grid-template-columns:1fr}.feature-card{min-height:260px;padding:27px}.feature-card h3{margin-top:34px}.feature-head{align-items:start}.feature-head h2{font-size:33px}.method-section .method-layout{grid-template-columns:1fr;gap:30px}.work-intro{padding:128px 0 46px}.case-card{grid-template-columns:37px 1fr;gap:10px;padding:33px 0}.case-side{grid-column:2;flex-direction:row;align-items:center;justify-content:space-between;gap:15px;flex-wrap:wrap}.case-card h2{font-size:26px}.work-list{padding-bottom:70px}.footer-lead{padding:80px 0 65px}.footer-lead h2{font-size:35px}.footer-email{font-size:17px}.footer-bottom{align-items:start;flex-direction:column;gap:20px}.copyright-extra{display:none}}@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}

/* V1.1 / Reading-first visual system
   Compact, editorial hierarchy inspired by focused reading interfaces.
   Intentional, proportional whitespace rather than marketing scale. */
:root{--reading-width:780px}
body{font-size:15px;line-height:1.75;letter-spacing:0}
h1,h2,h3{letter-spacing:-.028em}
h1{font-size:clamp(31px,3.3vw,41px);font-weight:600;line-height:1.5}
h2{font-size:clamp(24px,2.5vw,29px);font-weight:600;line-height:1.5}
.container,.footer-inner{width:min(860px,calc(100% - 64px))}
.wide{width:min(860px,calc(100% - 64px))}
.site-header{height:66px}
.header-inner{max-width:1030px;padding:0 32px;gap:28px}
.brand-word{font-size:15px;letter-spacing:-.35px}
.brand-mark{width:29px;height:29px;border-radius:7px;font-size:22px}
.main-nav{gap:24px}
.main-nav a{font-size:13px}
.theme-trigger{padding:6px 10px}
.eyebrow{font-size:10px;letter-spacing:.9px;font-weight:500}
.hero{padding:72px 0 70px}
.hero-grid{display:block;max-width:780px}
.hero h1{max-width:720px;margin:18px 0 20px}
.hero-intro{font-size:15px;line-height:1.95;max-width:645px;margin:0 0 24px}
.hero-intro strong{font-weight:500}
.hero-art{display:none}
.hero-cta{gap:21px}
.btn-primary{padding:10px 16px;min-height:40px;gap:22px;font-size:13px;border-radius:7px}
.btn-quiet{padding:6px 0;font-size:13px}
.section{padding:64px 0}
.section-heading{display:block;margin-bottom:28px}
.section-heading .eyebrow{margin-bottom:15px}
.section-heading h2{max-width:760px;margin:0}
.section-desc{max-width:690px;margin:11px 0 0;font-size:14px;line-height:1.9}
.service{grid-template-columns:35px minmax(0,1fr) minmax(0,1.1fr);gap:16px;padding:25px 0}
.service:hover{padding-left:0;background:transparent}
.service-num{font-size:11px;padding-top:5px}
.service h3{font-size:17px;line-height:1.65;letter-spacing:-.014em;font-weight:600;margin:0}
.service p{font-size:13.5px;line-height:1.85;margin:0}
.service-tags{margin-top:11px;gap:5px}
.service-tags span{font-size:10px;padding:2px 8px}
.service-arrow{display:none}
.feature-section{background:transparent;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.feature-head{margin-bottom:23px;align-items:end}
.feature-head h2{margin:11px 0 0}
.featured-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.feature-card{min-height:0;border:0;border-top:1px solid var(--line);border-radius:0;background:transparent;padding:19px 0 0;box-shadow:none}
.feature-card:hover{transform:none;border-color:var(--accent)}
.feature-card::after{display:none}
.feature-card .card-meta{font-size:10px}
.feature-card h3{font-size:17px;line-height:1.65;font-weight:600;letter-spacing:-.02em;margin:13px 0 7px;padding-right:15px}
.feature-card p{font-size:13px;line-height:1.9;margin-bottom:0}
.card-nudge{right:0;top:15px;width:auto;height:auto;border:0;font-size:16px}
.method-section .method-layout{grid-template-columns:1fr 1.05fr;gap:65px}
.method-section h2{margin:12px 0 13px}
.method-section p{font-size:14px;line-height:1.9}
.method-step{gap:12px;padding:13px 0}
.method-step span{min-width:25px;font-size:10px}
.method-step b{font-size:13px;font-weight:600}
.method-step small{font-size:12px;line-height:1.8}
.work-intro{padding:68px 0 36px}
.work-intro h1{font-size:clamp(30px,3.5vw,40px);margin:14px 0 12px}
.work-intro p{font-size:14px;line-height:1.9;max-width:720px}
.work-list{padding-bottom:70px}
.case-card{grid-template-columns:35px minmax(0,1fr) 145px;column-gap:20px;padding:29px 0}
.case-index{font-size:11px}
.case-card h2{font-size:19px;line-height:1.55;font-weight:600;margin:8px 0 9px}
.case-card p{font-size:13.5px;line-height:1.9}
.case-card .case-result{font-size:12.5px;margin:11px 0 0}
.case-side{gap:14px}
.case-side .case-type{font-size:10px}
.case-link{font-size:12px}
.callout-note{border-radius:9px;padding:16px 18px;margin-top:27px}
.callout-note p{font-size:12px}
.footer-lead{padding:63px 0 55px}
.footer-lead h2{font-size:clamp(25px,3.2vw,32px);line-height:1.5;font-weight:600;margin:14px 0 16px}
.footer-email{font-size:17px;gap:12px}
.footer-bottom{padding:20px 0 22px;font-size:10px}
@media(max-width:700px){
  .site-header{height:66px}
  .header-inner{padding:0 18px}
  .main-nav{top:66px;padding:9px}
  .container,.wide,.footer-inner{width:calc(100% - 40px)}
  .hero{padding:88px 0 53px}
  .hero h1{font-size:31px;line-height:1.5;margin:16px 0 17px}
  .hero-intro{font-size:14px;line-height:1.95}
  .section{padding:53px 0}
  .section-heading{margin-bottom:25px}
  .section-heading .eyebrow{margin-bottom:12px}
  .section-heading h2{font-size:24px;line-height:1.55}
  .section-desc{font-size:13px}
  .service{grid-template-columns:28px minmax(0,1fr);padding:22px 0}
  .service h3{font-size:16px}
  .service-detail{grid-column:2;grid-row:2}
  .service-arrow{display:none}
  .featured-grid{grid-template-columns:1fr;gap:22px}
  .feature-head{gap:12px;align-items:end}
  .feature-head h2{font-size:24px}
  .feature-card{padding:18px 0 0}
  .feature-card h3{font-size:16px}
  .method-section .method-layout{grid-template-columns:1fr;gap:22px}
  .method-section h2{font-size:24px}
  .work-intro{padding:92px 0 30px}
  .work-intro h1{font-size:31px}
  .case-card{grid-template-columns:26px 1fr;gap:9px;padding:25px 0}
  .case-card h2{font-size:18px}
  .case-side{grid-column:2}
  .work-list{padding-bottom:55px}
  .footer-lead{padding:55px 0 44px}
  .footer-lead h2{font-size:25px}
  .footer-email{font-size:15px}
}