:root{color-scheme:light;--paper: #ffffff;--ink: #111111;--muted: #5d6670;--line: #20242a;--soft-line: #d5dae0;--panel: #fbfcfd;--surface: #f4f6f8;--brand: #0f172a;--accent: #2563eb}*{box-sizing:border-box}html,body{margin:0;min-height:100%}body{background:var(--surface);color:var(--ink);font-family:Noto Sans SC,Microsoft YaHei,PingFang SC,Arial,sans-serif;line-height:1.5}a{color:inherit;text-decoration:none}button,.button{border:1px solid #101418;border-radius:999px;cursor:pointer;display:inline-flex;font:inherit;justify-content:center;padding:.75rem 1.15rem;white-space:nowrap}button,.button.primary{background:#101418;color:#fff}.button.secondary{background:#fff;color:#101418}h1,h2,p{margin:0}.site-header,.site-footer{align-items:center;display:flex;justify-content:space-between;margin:0 auto;max-width:1120px;padding:24px}.brand{font-weight:800;letter-spacing:-.03em}.site-header nav{display:flex;gap:18px}.site-header nav a{color:#475569;font-size:.95rem}.site-header-actions,.toolbar-actions{align-items:center;display:flex;flex-shrink:0;gap:16px}.language-switcher{background:#fff;border:1px solid #dbe3ea;border-radius:18px;display:inline-block;position:relative}.language-switcher summary,.language-panel a{align-items:center;border-radius:999px;color:#334155;display:flex;font-size:.86rem;font-weight:700;gap:.38rem;line-height:1;min-height:2rem;padding:.48rem .72rem;white-space:nowrap}.language-switcher summary{cursor:pointer;list-style:none;user-select:none}.language-switcher summary::-webkit-details-marker{display:none}.language-switcher[open] summary{background:#101418;color:#fff}.language-flag{font-size:1rem;line-height:1}.language-code{letter-spacing:.04em}.language-caret{font-size:.7rem;opacity:.75}.language-panel{background:#fff;border:1px solid #dbe3ea;border-radius:18px;box-shadow:0 18px 42px #0f172a29;display:grid;gap:2px;min-width:150px;padding:5px;position:absolute;right:0;top:calc(100% + 8px);z-index:10}.language-panel a{color:#475569;justify-content:flex-start}.language-panel a:hover,.language-panel a[aria-current=page]{background:#f1f5f9;color:#101418}.language-name{font-weight:600;letter-spacing:0}.hero,.entry-grid,.content-grid,.ad-slot{margin-left:auto;margin-right:auto;max-width:1120px}.hero{padding:76px 24px 36px}.eyebrow{font-size:8pt;letter-spacing:.12em;margin:0 0 1mm;text-transform:uppercase}.hero .eyebrow{color:var(--accent);font-size:.8rem;font-weight:800;margin-bottom:12px}.hero h1{font-size:clamp(2.3rem,7vw,5rem);letter-spacing:-.06em;line-height:.98;max-width:860px}.hero p:not(.eyebrow){color:#475569;font-size:1.08rem;margin-top:22px;max-width:720px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}.ad-slot{align-items:center;background:linear-gradient(135deg,rgba(15,23,42,.04) 25%,transparent 25% 50%,rgba(15,23,42,.04) 50% 75%,transparent 75%),#fff;background-size:18px 18px;border:1px dashed #94a3b8;border-radius:24px;color:#64748b;display:flex;justify-content:center;min-height:96px;padding:24px}.entry-grid{display:grid;gap:20px;grid-template-columns:repeat(2,minmax(0,1fr));padding:36px 24px}.entry-card,.content-grid article{background:#fff;border:1px solid #dbe3ea;border-radius:28px;box-shadow:0 18px 44px #0f172a14}.entry-card{display:grid;gap:16px;min-height:300px;overflow:hidden;padding:28px;position:relative}.entry-card:before{border-radius:50%;content:"";height:220px;position:absolute;right:-80px;top:-90px;width:220px}.color-card:before{background:conic-gradient(#ef1c25,#fff200,#00a651,#00aeef,#0054a6,#ec008c,#ef1c25)}.mono-card:before{background:linear-gradient(135deg,#fff,#000)}.card-label{color:#64748b;font-size:.78rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase}.entry-card h2{font-size:2rem;letter-spacing:-.04em;line-height:1.05;max-width:360px;position:relative}.entry-card p:not(.card-label){color:#475569;max-width:420px;position:relative}.entry-card a{align-self:end;color:var(--accent);font-weight:800;position:relative}.content-grid{display:grid;gap:20px;grid-template-columns:repeat(2,minmax(0,1fr));padding:0 24px 56px}.content-grid article{padding:26px}.content-grid h2{font-size:1.35rem;margin-bottom:12px}.content-grid ul{color:#475569;margin:0;padding-left:1.2rem}.content-grid li+li{margin-top:.55rem}.site-footer{border-top:1px solid #dbe3ea;color:#64748b;font-size:.9rem;padding-bottom:32px;padding-top:32px}.print-page{background:#d7dbe0;line-height:1.35}.toolbar{align-items:center;display:flex;gap:1rem;justify-content:space-between;margin:1rem auto;max-width:210mm;padding:0 .25rem}.toolbar>div:first-child{display:grid;gap:.2rem}.toolbar span,.back-link{color:#4c5661;font-size:.9rem}.back-link{width:max-content}.sheet{background:var(--paper);box-shadow:0 12px 32px #0003;display:flex;flex-direction:column;gap:4.4mm;height:297mm;margin:0 auto 1.5rem;overflow:hidden;padding:10mm;position:relative;width:210mm}.crop{height:8mm;position:absolute;width:8mm}.crop-line{display:block;left:0;position:absolute;top:0}.crop-line.horizontal{border-top:.35mm solid #111111;width:8mm}.crop-line.vertical{border-left:.35mm solid #111111;height:8mm}.crop-tl{left:4mm;top:4mm}.crop-tr{right:4mm;top:4mm;transform:rotate(90deg)}.crop-bl{bottom:4mm;left:4mm;transform:rotate(270deg)}.crop-br{bottom:4mm;right:4mm;transform:rotate(180deg)}.print-header{align-items:center;border:.45mm solid var(--line);display:grid;grid-template-columns:1fr 28mm;min-height:26mm;padding:4mm}.print-header h1{font-size:21pt;letter-spacing:.02em}.meta,.section-title p{color:var(--muted);font-size:7.5pt}.target{aspect-ratio:1;border:.25mm solid #111111;border-radius:50%;display:grid;place-items:center;position:relative}.target-ring{border:.25mm solid currentColor;border-radius:50%;grid-area:1 / 1}.target-line{display:block;grid-area:1 / 1}.target-line.horizontal{border-top:.3mm solid #111111;height:.3mm;width:100%}.target-line.vertical{border-left:.3mm solid #111111;height:100%}.registration .outer{color:#00aeef;height:70%;width:70%}.registration .middle{color:#ec008c;height:48%;width:48%}.registration .inner{color:#fff200;height:26%;width:26%}.mono-target .outer{color:#111;height:70%;width:70%}.mono-target .middle{color:#111;height:36%;width:36%}.monochrome-test .mono-header{flex-shrink:0;min-height:36mm}.monochrome-test .mono-target{height:28mm;width:28mm}.panel{background:var(--panel);border:.25mm solid var(--line);padding:3mm}.panel.full{min-height:31mm}.section-title{align-items:baseline;display:flex;gap:2.5mm;justify-content:space-between;margin-bottom:2.4mm}.section-title h2{flex:0 0 auto;white-space:nowrap}.section-title p{min-width:0;text-align:right}.print-grid{display:grid;gap:4mm}.print-grid.two{grid-template-columns:1fr 1fr}.print-grid.three{grid-template-columns:1fr 1fr 1fr}.gray-scale{border:.25mm solid #111111;display:grid;grid-template-columns:repeat(11,1fr);height:17mm}.gray-scale span{align-items:end;background:rgb(var(--gray),var(--gray),var(--gray));border-right:.2mm solid rgba(0,0,0,.5);color:#fff;display:flex;font-size:6.6pt;justify-content:center;padding:1mm 0;text-shadow:0 0 1mm #000000}.gray-scale span:first-child,.gray-scale span:nth-child(2),.gray-scale span:nth-child(3),.gray-scale span:nth-child(4){color:#111;text-shadow:0 0 1mm #ffffff}.gray-scale span:last-child{border-right:0}.type-tests{display:grid;gap:1.35mm}.size-18{font-size:18pt;font-weight:700}.size-14{font-size:10.5pt}.size-11{font-size:8.25pt}.size-9{font-size:6.75pt}.size-7{font-size:5.25pt}.weights{align-items:center;display:flex;font-size:10pt;gap:4mm}.line-tests{display:grid;gap:2.2mm}.hairline,.line{display:block}.hairline{border-top:.25mm solid #111111;height:.25mm}.line.thin{border-top:.35mm solid #111111;height:.35mm}.line.medium{border-top:.6mm solid #111111;height:.6mm}.line.thick{border-top:1mm solid #111111;height:1mm}.diagonal{border:.25mm solid #111111;height:17mm;overflow:hidden;position:relative}.diagonal-line{border-top:.3mm solid #111111;display:block;left:50%;position:absolute;top:50%;width:120%}.diagonal-line.rising{transform:translate(-50%,-50%) rotate(30deg)}.diagonal-line.falling{transform:translate(-50%,-50%) rotate(-30deg)}.micro-grid{border:.25mm solid #111111;display:grid;grid-template-columns:repeat(8,1fr);grid-template-rows:repeat(4,1fr);height:16mm;overflow:hidden}.micro-grid span{border-bottom:.15mm solid #111111;border-right:.15mm solid #111111}.micro-grid span:nth-child(8n){border-right:0}.micro-grid span:nth-last-child(-n+8){border-bottom:0}.swatches{display:grid;gap:2mm}.swatches span{align-items:center;border:.25mm solid #111111;display:flex;font-size:8pt;font-weight:700;height:13mm;justify-content:center}.rgb{grid-template-columns:repeat(3,1fr)}.cmyk{grid-template-columns:repeat(4,1fr)}.red{background:#ef1c25;color:#fff}.green{background:#00a651;color:#fff}.blue{background:#0054a6;color:#fff}.cyan,.c{background:#00aeef}.magenta,.m{background:#ec008c;color:#fff}.yellow,.y{background:#fff200}.k{background:#000;color:#fff}.cm{background:linear-gradient(90deg,#00aeef 50%,#ec008c 50%);color:#fff}.my{background:linear-gradient(90deg,#ec008c 50%,#fff200 50%)}.cy{background:linear-gradient(90deg,#00aeef 50%,#fff200 50%)}.cmy{background:linear-gradient(90deg,#00aeef 33%,#ec008c 33% 66%,#fff200 66%)}.mono-patterns{display:grid;gap:2mm;grid-template-columns:repeat(2,1fr)}.mono-patterns span{align-items:center;border:.25mm solid #111111;display:flex;font-size:8pt;font-weight:700;height:17mm;justify-content:center}.dots-light{background-image:radial-gradient(#111111 18%,transparent 19%);background-size:2mm 2mm}.dots-mid{background-image:radial-gradient(#111111 32%,transparent 33%);background-size:2mm 2mm}.dots-dark{background-color:#d8d8d8;background-image:radial-gradient(#111111 45%,transparent 46%);background-size:2mm 2mm}.solid-black{background:#000;color:#fff}.stripe-tests{display:grid;gap:2.5mm}.stripe-tests span{border:.25mm solid #111111;display:block;height:14mm}.monochrome-test .stripe-tests{gap:1.5mm}.monochrome-test .stripe-tests span{height:11mm}.stripe-horizontal{background:repeating-linear-gradient(0deg,#111 0 .35mm,#fff .35mm 1.6mm)}.stripe-vertical{background:repeating-linear-gradient(90deg,#111 0 .35mm,#fff .35mm 1.6mm)}.stripe-fine{background:repeating-linear-gradient(45deg,#111 0 .2mm,#fff .2mm 1.2mm)}.compact{min-height:42mm}.compact h2{font-size:10pt;margin-bottom:2.5mm;white-space:nowrap}.coverage{display:grid;gap:2mm}.coverage span{background:linear-gradient(90deg,#111111 var(--fill),transparent var(--fill)),#fff;border:.25mm solid #111111;color:#111;display:block;font-size:7pt;height:7mm;padding-left:1.5mm}.gradients{display:grid;gap:3mm}.gradients span{border:.25mm solid #111111;display:block;height:13mm}.gray-gradient{background:linear-gradient(90deg,#fff,#000)}.stepped-gradient{background:linear-gradient(90deg,#fff 0 10%,#e6e6e6 10% 20%,#ccc 20% 30%,#b3b3b3 30% 40%,#999 40% 50%,gray 50% 60%,#666 60% 70%,#4d4d4d 70% 80%,#333 80% 90%,#000 90% 100%)}.color-gradient{background:linear-gradient(90deg,#ef1c25,#fff200,#00a651,#00aeef,#0054a6,#ec008c)}.rulers{border:.25mm solid #111111;display:grid;grid-template-columns:1fr 1fr;min-height:28mm;position:relative}.ruler-label{align-items:center;display:flex;font-size:7pt;justify-content:center;padding:1mm;text-align:center}.ruler-line{display:block;left:50%;position:absolute;top:50%;transform:translate(-50%,-50%)}.ruler-line.horizontal{border-top:.25mm solid #111111;height:.25mm;width:100%}.ruler-line.vertical{border-left:.25mm solid #111111;height:100%}.print-footer{border-top:.25mm solid #111111;display:flex;font-size:7.5pt;justify-content:space-between;margin-top:auto;padding-top:2mm}@media screen and (max-width:840px){.site-header,.site-footer{align-items:flex-start;flex-direction:column;gap:12px}.site-header-actions,.toolbar-actions{align-items:flex-start;flex-direction:column}.entry-grid,.content-grid{grid-template-columns:1fr}.toolbar{align-items:stretch;flex-direction:column;margin:1rem}.sheet{transform:scale(calc((100vw - 2rem) / 794));transform-origin:top left}}@page{margin:0;size:A4}@media print{*{print-color-adjust:exact;-webkit-print-color-adjust:exact}body{background:#fff}.toolbar,.site-header,.site-footer,.ad-slot{display:none}.sheet{box-shadow:none;margin:0;page-break-after:avoid;page-break-before:avoid}}