:root{--cinnabar:#c23b2e;--cinnabar-deep:#8f241c;--cinnabar-soft:#e8a399;--ink:#1a1512;--ink-soft:#3d342e;--ink-muted:#6b5f56;--river:#2f5f6b;--river-soft:#5a8a96;--paper:#f0e6d8;--paper-deep:#e2d2bd;--paper-warm:#f7f0e6;--sand:#d9c7b0;--line:rgba(26,21,18,0.12);--glow:rgba(194,59,46,0.18);--font-brush:"Ma Shan Zheng","STKaiti","KaiTi",cursive;--font-display:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;--font-body:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;--space-1:0.25rem;--space-2:0.5rem;--space-3:0.75rem;--space-4:1rem;--space-5:1.5rem;--space-6:2rem;--space-7:3rem;--space-8:4.5rem;--radius-s:2px;--radius-m:6px;--shadow-soft:0 18px 50px rgba(26,21,18,0.12);--header-h:4.25rem;--ease-out:cubic-bezier(0.22,1,0.36,1)}html[data-locale=en]{--font-display:var(--font-latin),"Source Sans 3","Segoe UI",system-ui,sans-serif;--font-body:var(--font-latin),"Source Sans 3","Segoe UI",system-ui,sans-serif}@media (prefers-reduced-motion:reduce){*,:after,:before{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}@font-face{font-family:Ma Shan Zheng;font-style:normal;font-weight:400;font-display:swap;src:url(/fonts/MaShanZheng.woff2) format("woff2")}*,:after,:before{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-height:100vh;color:var(--ink);background:radial-gradient(1200px 600px at 10% -10%,rgba(194,59,46,.07),transparent 55%),radial-gradient(900px 500px at 100% 0,rgba(47,95,107,.08),transparent 50%),linear-gradient(180deg,var(--paper-warm) 0,var(--paper) 45%,var(--paper-deep) 100%);font-family:var(--font-body);line-height:1.65;-webkit-font-smoothing:antialiased}body:before{content:"";position:fixed;inset:0;pointer-events:none;opacity:.22;background-image:url(/media/paper-texture.jpg);background-size:420px;mix-blend-mode:multiply;z-index:0}a{color:inherit;text-decoration:none}button,input,select{font:inherit}img{max-width:100%;display:block}h1,h2,h3,h4{font-family:var(--font-display);font-weight:600;line-height:1.25;letter-spacing:.03em;margin:0}html[data-locale=en] h1,html[data-locale=en] h2,html[data-locale=en] h3,html[data-locale=en] h4{letter-spacing:-.015em;font-weight:700}p{margin:0}.site-shell{position:relative;z-index:1;min-height:100vh;display:flex;flex-direction:column}.site-main{flex:1 1}.container{width:min(1120px,calc(100% - 2rem));margin-inline:auto}.page-pad{padding:calc(var(--header-h) + 2rem) 0 4rem}.section-kicker{display:inline-flex;align-items:center;gap:.5rem;color:var(--cinnabar-deep);font-size:.85rem;letter-spacing:.18em;text-transform:uppercase}.section-kicker:before{content:"";width:1.5rem;height:1px;background:var(--cinnabar)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.55rem;border:1px solid transparent;border-radius:8px;padding:.82rem 1.3rem;cursor:pointer;font-size:.95rem;letter-spacing:.03em;transition:transform .35s var(--ease-out),background .25s ease,color .25s ease,border-color .25s ease,box-shadow .35s ease}.btn:hover{transform:translateY(-2px)}.btn-primary{background:var(--cinnabar);color:#fff8f4;box-shadow:0 10px 28px var(--glow)}.btn-primary:hover{background:var(--cinnabar-deep);box-shadow:0 14px 34px rgba(194,59,46,.35)}.btn-ghost{background:rgba(255,255,255,.35);border-color:rgba(26,21,18,.16);color:var(--ink)}.btn-ghost:hover{border-color:var(--cinnabar);color:var(--cinnabar-deep);background:rgba(255,255,255,.55)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}