.portal-entry{--entry-bg:oklch(0.13 0.012 265);--entry-ink:oklch(0.94 0.008 90);--entry-card:oklch(0.17 0.014 265);--entry-secondary:oklch(0.21 0.014 265);--entry-muted:oklch(0.62 0.020 265);--entry-border:oklch(0.24 0.016 265);--entry-border-strong:oklch(0.32 0.020 265);--entry-surface:oklch(0.20 0.014 265);--entry-gold:#e0a316;--entry-gold-ink:oklch(0.13 0.012 265);--entry-grid:oklch(0.26 0.016 265/0.55);--entry-radius:2px;--entry-radius-control:8px;--entry-radius-card:14px;color-scheme:dark;background:var(--entry-bg);color:var(--entry-ink);min-height:100svh;display:flex;flex-direction:column;font-family:var(--entry-sans),"PingFang SC","Microsoft YaHei",sans-serif;font-feature-settings:"ss01";font-size:14px;line-height:1.5}html:not(.dark) .portal-entry{--entry-bg:oklch(0.975 0.006 255);--entry-ink:oklch(0.205 0.018 260);--entry-card:oklch(1 0 0);--entry-secondary:oklch(0.945 0.010 255);--entry-muted:oklch(0.470 0.028 255);--entry-border:oklch(0.865 0.018 255);--entry-border-strong:oklch(0.760 0.030 255);--entry-surface:oklch(0.955 0.010 255);--entry-gold:oklch(0.62 0.150 72);--entry-gold-ink:oklch(0.125 0.014 260);--entry-grid:oklch(0.830 0.018 255/0.70);color-scheme:light}.portal-entry *{box-sizing:border-box}.portal-entry button{font:inherit;cursor:pointer}.portal-entry :is(button,a):focus-visible{outline:2px solid var(--entry-gold);outline-offset:4px}.portal-entry ::selection{background:color-mix(in oklab,var(--entry-gold) 30%,transparent)}.portal-header{border-bottom:1px solid var(--entry-border)}.portal-header-inner{height:76px;max-width:1280px;padding:0 40px;margin:auto;display:flex;align-items:center;justify-content:space-between}.portal-brand{display:flex;align-items:center;gap:20px;font-size:17px;font-weight:500}.portal-brand img{display:block;width:124px;height:auto}.portal-brand-divider{width:1px;height:22px;background:var(--entry-border-strong)}.portal-tools{display:flex;align-items:center;gap:16px}.portal-language,.portal-theme{color:var(--entry-muted);display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:var(--entry-radius-control);background:none;min-height:36px}.portal-language{padding:0 8px;font-size:12px!important}.portal-theme{width:36px;border-color:var(--entry-border);background:var(--entry-card)}.portal-tools-divider{height:16px;width:1px;background:var(--entry-border)}.portal-language:hover,.portal-theme:hover:hover{color:var(--entry-ink);background:var(--entry-secondary)}.portal-main{width:min(100%,1080px);padding:0 24px;margin:0 auto;flex:1}.portal-intro{text-align:center;margin:52px 0 36px}.portal-eyebrow{font-size:11px;font-weight:600;letter-spacing:.13em;color:var(--entry-muted);display:inline-flex;gap:10px;align-items:center}.portal-pixel{width:7px;height:7px;border-radius:var(--entry-radius);background:var(--entry-gold)}.portal-intro h1{margin:16px 0 12px;font-size:clamp(32px,3.1vw,44px);font-weight:600;line-height:1.3;letter-spacing:-.035em}.portal-intro h1>span{color:var(--entry-gold)}.portal-intro p{margin:0;font-size:14px;color:var(--entry-muted)}.portal-products{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}.portal-card{min-width:0;padding:24px;border:1px solid var(--entry-border);border-radius:var(--entry-radius-card);background:var(--entry-card);transition:border-color .18s,background .18s}.portal-card:focus-within,.portal-card:hover{border-color:var(--entry-border-strong);background:var(--entry-surface)}.portal-card-heading{display:flex;justify-content:space-between;align-items:center}.portal-category{font-weight:600;letter-spacing:.06em}.portal-category,.portal-index{color:var(--entry-muted);font-size:11px}.portal-index{font-family:var(--entry-mono),monospace;font-variant-numeric:tabular-nums}.portal-card h2{font-size:44px;font-weight:600;line-height:1.2;margin:12px 0 10px;letter-spacing:-.035em}.portal-product-dot{color:var(--entry-gold)}.portal-description{margin:0;color:var(--entry-muted);font-size:14px;line-height:1.75;min-height:49px;max-width:390px}.portal-art{margin:16px 0 24px}.portal-graphic{display:block;width:100%;height:136px}.portal-art-label{display:flex;justify-content:space-between;gap:10px;margin-top:8px;font-family:var(--entry-mono),monospace;font-size:11px;letter-spacing:.015em;color:var(--entry-muted)}.portal-card-bottom{border-top:1px solid var(--entry-border);padding-top:20px}.portal-topics{display:flex;gap:8px;margin-bottom:20px;flex-wrap:wrap}.portal-topics>span{background:var(--entry-secondary);color:var(--entry-muted);border:1px solid var(--entry-border);border-radius:var(--entry-radius-control);padding:4px 10px;font-size:11px;font-weight:500}.portal-open{text-decoration:none;width:100%;min-height:44px;padding:11px 16px;justify-content:space-between;gap:16px;background:var(--entry-gold);color:var(--entry-gold-ink);border:1px solid var(--entry-gold);border-radius:var(--entry-radius-control);font-weight:600!important;font-size:14px!important;transition:filter .18s}.portal-open,.portal-open>span{display:flex;align-items:center}.portal-open>span{gap:10px}.portal-open:hover{filter:brightness(1.09)}.portal-endnote{margin:24px 0 40px;display:flex;gap:8px;justify-content:center;align-items:center;color:var(--entry-muted);font-size:12px}.portal-endnote svg{width:14px;height:14px}.portal-footer{border-top:1px solid var(--entry-border)}.portal-footer>div{max-width:1280px;padding:22px 40px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:16px;color:var(--entry-muted);font-size:11px}.portal-footer>div>span:first-child{font-family:var(--entry-mono),monospace;font-size:11px;letter-spacing:.025em}.portal-footer-separator{padding:0 12px;color:var(--entry-border-strong)}@media(min-height:900px) and (min-width:700px){.portal-intro{margin-top:76px;margin-bottom:44px}.portal-graphic{height:160px}}@media(max-width:700px){.portal-header-inner{padding:0 20px;height:68px}.portal-brand{gap:12px;font-size:15px}.portal-brand img{width:100px}.portal-tools{gap:6px}.portal-tools-divider{display:none}.portal-language{padding:0 6px;min-height:44px}.portal-language svg{display:none}.portal-theme{width:44px;min-height:44px}.portal-main{padding:0 20px}.portal-intro{margin:36px 0 28px}.portal-intro h1{font-size:30px;margin-top:14px}.portal-intro p{font-size:13px;max-width:280px;margin:auto;line-height:1.8}.portal-products{grid-template-columns:1fr;gap:16px}.portal-card{padding:20px}.portal-card h2{font-size:40px}.portal-description{font-size:13px;min-height:0}.portal-art{margin:12px 0 20px}.portal-graphic{height:112px}.portal-art-label{font-size:11px}.portal-art-label span:last-child{display:none}.portal-card-bottom{padding-top:16px}.portal-topics{margin-bottom:16px}.portal-endnote{font-size:11px;margin:24px 0 28px}.portal-footer>div{padding:20px;flex-direction:column;align-items:flex-start;gap:8px}}@media(prefers-reduced-motion:reduce){.portal-entry *{transition:none!important}}.dark .portal-theme-dark,.portal-theme-light{display:none}.dark .portal-theme-light,.portal-theme-dark{display:inline-flex}