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:root{--space-1:.25rem;--space-2:.5rem;--space-3:.75rem;--space-4:1rem;--space-5:1.5rem;--space-6:2rem;--space-7:3rem;--space-8:4rem;--site-max-width:72rem;--site-radius-md:12px;--site-radius-lg:20px;--site-radius-xl:28px;--site-border-width:1px;--shadow-soft:0 20px 60px #0f172a14;--shadow-crisp:0 10px 30px #1f6feb1f;--transition-base:.18s ease;--transition-emphasis:.5s cubic-bezier(.22, 1, .36, 1)}html{scroll-behavior:smooth;background:var(--site-color-background);min-height:100%}html,body{max-width:100vw;overflow-x:hidden}body{min-height:100%;color:var(--site-color-text);background:radial-gradient(circle at top left, rgba(var(--site-color-primary-rgb), .16), transparent 32%), radial-gradient(circle at top right, rgba(var(--site-color-accent-rgb), .18), transparent 26%), linear-gradient(180deg, rgba(var(--site-color-surface-rgb), .94), var(--site-color-background));font-family:var(--font-body), "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;flex-direction:column;display:flex}*{box-sizing:border-box;margin:0;padding:0}:before,:after{box-sizing:border-box}main{width:100%}h1,h2,h3,h4,h5,h6{color:var(--site-color-text);font-family:var(--font-display), "Songti SC", "STSong", serif;letter-spacing:-.04em;font-weight:600}p{color:var(--site-color-muted);line-height:1.7}a{color:inherit;transition:color var(--transition-base), transform var(--transition-base);text-decoration:none}img,svg,video,canvas{max-width:100%;display:block}button,input,textarea,select{font:inherit}::selection{background:rgba(var(--site-color-accent-rgb), .28)}