:root{--paper: #f7f2e5;--paper-raised: #fbf7ec;--paper-deep: #efe7d0;--paper-sunken: #e9dfc4;--edge: #ddd2b4;--edge-strong: #c9bb96;--ink: #2b2520;--ink-soft: #564e3e;--ink-faint: #8a7f66;--cinnabar: #a03428;--cinnabar-deep: #7d251b;--cinnabar-bright: #c04a3a;--cinnabar-wash: rgba(160, 52, 40, .08);--cinnabar-edge: rgba(160, 52, 40, .28);--jade: #4f6b54;--font-brand: "Ma Shan Zheng", "LXGW WenKai", "Kaiti SC", "STKaiti", "KaiTi", serif;--font-body: "LXGW WenKai", "Songti SC", "STSong", "SimSun", Georgia, "Times New Roman", serif;--fs-xs: .78rem;--fs-sm: .92rem;--fs-base: 1.06rem;--fs-md: 1.25rem;--fs-lg: 1.6rem;--fs-xl: clamp(1.9rem, 3.4vw, 2.7rem);--fs-hero: clamp(2.6rem, 6.2vw, 4.6rem);--space-1: .35rem;--space-2: .7rem;--space-3: 1.1rem;--space-4: 1.7rem;--space-5: 2.8rem;--space-6: 4.4rem;--radius: 10px;--radius-lg: 16px;--shadow-paper: 0 1px 0 rgba(43, 37, 32, .04), 0 10px 30px rgba(43, 37, 32, .08);--shadow-lift: 0 2px 0 rgba(43, 37, 32, .05), 0 18px 48px rgba(43, 37, 32, .13);--measure: 68ch;--page-max: 1180px}@font-face{font-family:Ma Shan Zheng;src:url(/fonts/ma-shan-zheng-subset.woff2) format("woff2");font-display:swap;font-weight:400}@font-face{font-family:LXGW WenKai;src:url(/fonts/lxgw-wenkai-subset.woff2) format("woff2");font-display:swap;font-weight:400}*,*:before,*:after{box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{margin:0;background-color:var(--paper);color:var(--ink);font-family:var(--font-body);font-size:var(--fs-base);line-height:1.85;letter-spacing:.015em;text-rendering:optimizeLegibility}body:before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='g'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23g)' opacity='0.05'/%3E%3C/svg%3E"),radial-gradient(120% 90% at 50% 0%,#fffcf0e6,#f7f2e500 60%);background-size:240px 240px,100% 100%}::selection{background:#a0342838}h1,h2,h3,h4{font-weight:600;line-height:1.4;color:var(--ink);margin:0 0 var(--space-3)}h1,h2{letter-spacing:.02em}p{margin:0 0 var(--space-3)}a{color:var(--cinnabar);text-decoration:none;text-underline-offset:.18em}a:hover{color:var(--cinnabar-deep);text-decoration:underline}img,video,canvas,svg{max-width:100%}code,kbd,samp{font-family:ui-monospace,Cascadia Mono,Consolas,monospace;font-size:.9em;background:var(--paper-deep);border:1px solid var(--edge);border-radius:5px;padding:.08em .38em}.container{width:min(var(--page-max),100% - 2 * var(--space-4));margin-inline:auto}.measure{max-width:var(--measure)}.btn{display:inline-flex;align-items:center;gap:.5em;font-family:var(--font-body);font-size:var(--fs-sm);line-height:1.4;padding:.62em 1.35em;border-radius:8px;border:1px solid transparent;cursor:pointer;text-decoration:none!important;transition:transform .15s ease,box-shadow .15s ease,background .15s ease}.btn-primary{background:var(--cinnabar);color:#fdf9ef!important;box-shadow:0 2px 0 var(--cinnabar-deep),0 8px 20px #a0342840}.btn-primary:hover{background:var(--cinnabar-deep);transform:translateY(-1px)}.btn-ghost{background:transparent;color:var(--ink-soft)!important;border-color:var(--edge-strong)}.btn-ghost:hover{background:var(--paper-deep);color:var(--ink)!important}.card{background:var(--paper-raised);border:1px solid var(--edge);border-radius:var(--radius-lg);box-shadow:var(--shadow-paper);padding:var(--space-4)}.seal{display:inline-grid;place-items:center;width:2.35em;height:2.35em;font-family:var(--font-brand);font-size:inherit;color:#fdf9ef;background:linear-gradient(145deg,var(--cinnabar-bright),var(--cinnabar) 55%,var(--cinnabar-deep));border-radius:6px;box-shadow:inset 0 0 0 2px #fdf9ef8c,inset 0 0 12px #7d251b99,0 2px 6px #2b252040;transform:rotate(-3deg);line-height:1;user-select:none}.eyebrow{display:inline-flex;align-items:center;gap:.6em;font-size:var(--fs-sm);color:var(--cinnabar);letter-spacing:.24em;margin-bottom:var(--space-2)}.eyebrow:before{content:"";width:2.2em;height:1px;background:linear-gradient(90deg,transparent,var(--cinnabar-edge))}.section-title{font-size:var(--fs-xl);margin-bottom:var(--space-3)}.section-sub{color:var(--ink-soft);max-width:var(--measure);margin-bottom:var(--space-5)}.rule{height:1px;border:0;background:linear-gradient(90deg,transparent,var(--edge-strong),transparent);margin:var(--space-5) 0}.v-text{writing-mode:vertical-rl;letter-spacing:.35em}.muted{color:var(--ink-faint)}.small{font-size:var(--fs-sm)}.center{text-align:center}.skip-link{position:absolute;left:-9999px;top:0;background:var(--cinnabar);color:#fdf9ef;padding:.5em 1em;z-index:100}.skip-link:focus{left:var(--space-2);top:var(--space-2)}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:1ms!important;transition-duration:1ms!important}}.logo-mark[data-astro-cid-tvrurpns]{display:inline-flex;line-height:0;color:var(--cinnabar)}.logo-mark[data-astro-cid-tvrurpns] svg{height:var(--logo-h);width:auto}