@import"https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@500;600;700&display=swap";@import"https://fonts.googleapis.com/css2?family=Spectral:wght@400;500;600;700&display=swap";@tailwind base;@tailwind components;@tailwind utilities;:root{--background: 0 0% 100%;--foreground: 0 0% 3.9%;--card: 0 0% 100%;--card-foreground: 0 0% 3.9%;--popover: 0 0% 100%;--popover-foreground: 0 0% 3.9%;--primary: 0 0% 9%;--primary-foreground: 0 0% 98%;--secondary: 0 0% 96.1%;--secondary-foreground: 0 0% 9%;--muted: 0 0% 96.1%;--muted-foreground: 0 0% 45.1%;--accent: 0 0% 96.1%;--accent-foreground: 0 0% 9%;--destructive: 0 84.2% 60.2%;--destructive-foreground: 0 0% 98%;--border: 0 0% 89.8%;--input: 0 0% 89.8%;--ring: 0 0% 3.9%;--chart-1: 12 76% 61%;--chart-2: 173 58% 39%;--chart-3: 197 37% 24%;--chart-4: 43 74% 66%;--chart-5: 27 87% 67%;--radius: .5rem;--sidebar-background: 0 0% 98%;--sidebar-foreground: 240 5.3% 26.1%;--sidebar-primary: 240 5.9% 10%;--sidebar-primary-foreground: 0 0% 98%;--sidebar-accent: 240 4.8% 95.9%;--sidebar-accent-foreground: 240 5.9% 10%;--sidebar-border: 220 13% 91%;--sidebar-ring: 217.2 91.2% 59.8%}.dark{--background: 0 0% 3.9%;--foreground: 0 0% 98%;--card: 0 0% 3.9%;--card-foreground: 0 0% 98%;--popover: 0 0% 3.9%;--popover-foreground: 0 0% 98%;--primary: 0 0% 98%;--primary-foreground: 0 0% 9%;--secondary: 0 0% 14.9%;--secondary-foreground: 0 0% 98%;--muted: 0 0% 14.9%;--muted-foreground: 0 0% 63.9%;--accent: 0 0% 14.9%;--accent-foreground: 0 0% 98%;--destructive: 0 62.8% 30.6%;--destructive-foreground: 0 0% 98%;--border: 0 0% 14.9%;--input: 0 0% 14.9%;--ring: 0 0% 83.1%;--chart-1: 220 70% 50%;--chart-2: 160 60% 45%;--chart-3: 30 80% 55%;--chart-4: 280 65% 60%;--chart-5: 340 75% 55%;--sidebar-background: 240 5.9% 10%;--sidebar-foreground: 240 4.8% 95.9%;--sidebar-primary: 224.3 76.3% 48%;--sidebar-primary-foreground: 0 0% 100%;--sidebar-accent: 240 3.7% 15.9%;--sidebar-accent-foreground: 240 4.8% 95.9%;--sidebar-border: 240 3.7% 15.9%;--sidebar-ring: 217.2 91.2% 59.8%}html{scroll-behavior:smooth;font-size:16px}body{color:hsl(var(--foreground));background-color:hsl(var(--background));overscroll-behavior:none;font-synthesis-weight:none}html>body *{border-color:hsl(var(--border))}::-webkit-scrollbar{width:5px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:hsl(var(--border));border-radius:5px}*{scrollbar-width:thin;scrollbar-color:hsl(var(--border)) transparent}.brand-title{font-family:"Noto Serif SC",Songti SC,STSong,"Source Han Serif SC","Noto Serif CJK SC",PingFang SC,Hiragino Sans GB,Microsoft YaHei,Georgia,ui-serif,serif;font-weight:600;letter-spacing:.02em;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.typography-elegant:lang(zh){font-family:"Noto Serif SC",Songti SC,STSong,"Source Han Serif SC","Noto Serif CJK SC",PingFang SC,Hiragino Sans GB,Microsoft YaHei,Georgia,ui-serif,serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.typography-elegant:lang(en){font-family:Spectral,Georgia,Times New Roman,ui-serif,serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.story-title{font-weight:600;letter-spacing:.01em}.story-lead{font-size:1.0625rem;line-height:1.9}.story-sectionTitle{font-weight:600;letter-spacing:.005em}.story-paragraph{line-height:1.9;color:#404040}.story-emphasis{background:#fafafa;border:1px solid #e5e5e5;border-radius:.75rem}:root{--g-bg: #f8f9fa;--g-surface: #ffffff;--g-border: #dadce0;--g-shadow: 60, 64, 67;--g-on-surface: #1f1f1f;--g-muted: #5f6368;--g-primary: #1a73e8;--g-primary-hover: #185abc;--ins-bg-top: #ffffff;--ins-bg-bottom: var(--g-bg);--ins-border: var(--g-border);--ins-shadow: var(--g-shadow);--ins-fg: var(--g-on-surface);--ins-muted: var(--g-muted);--ins-radius: 12px}.ins-page{background:linear-gradient(180deg,var(--ins-bg-top) 0%,var(--ins-bg-bottom) 100%)}.grain-overlay{position:absolute;inset:0;pointer-events:none;opacity:.08;mix-blend-mode:multiply;background-image:radial-gradient(circle at 10% 10%,rgba(0,0,0,.25) .5px,transparent 1px),radial-gradient(circle at 80% 40%,rgba(0,0,0,.25) .5px,transparent 1px),radial-gradient(circle at 30% 70%,rgba(0,0,0,.25) .6px,transparent 1.2px),radial-gradient(circle at 60% 20%,rgba(0,0,0,.25) .5px,transparent 1px);background-size:120px 120px,140px 140px,160px 160px,110px 110px;background-repeat:repeat;filter:contrast(110%)}.ins-surface{background:var(--g-surface);border:1px solid var(--g-border);border-radius:var(--ins-radius);box-shadow:0 1px 2px rgba(var(--g-shadow),.3),0 1px 3px 1px rgba(var(--g-shadow),.15)}.ins-pill{border-radius:9999px;padding:.375rem .75rem;transition:background-color .2s ease,color .2s ease}.ins-pill:hover{background:#f1f3f4}@supports (backdrop-filter: blur(8px)){.ins-navbar{backdrop-filter:blur(10px)}}.ins-fab{position:absolute;top:0;right:0;transform:translateY(-50%);display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:9999px;background:var(--g-surface);border:1px solid var(--g-border);color:var(--g-on-surface);font-size:13px;line-height:1;box-shadow:0 1px 2px rgba(var(--g-shadow),.3),0 1px 3px 1px rgba(var(--g-shadow),.15);transition:background-color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .12s ease}.ins-fab:hover,.ins-fab:focus-visible{background:#f1f3f4;border-color:var(--g-border);box-shadow:0 2px 6px rgba(var(--g-shadow),.2),0 6px 10px 4px rgba(var(--g-shadow),.1);outline:none}.ins-fab:active{background:#e8eaed;transform:translateY(-50%) scale(.99)}.ins-fab:focus-visible{outline:2px solid var(--g-primary);outline-offset:2px}.ins-fab .chev{transition:transform .18s ease}.ins-card-hover{transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease;will-change:transform}.ins-card-hover:hover{transform:translateY(-1px);box-shadow:0 2px 6px rgba(var(--g-shadow),.2),0 6px 10px 4px rgba(var(--g-shadow),.1)}.ins-page,body{color:var(--g-on-surface)}a{color:#1f1f1f;text-underline-offset:3px}a:hover{color:#111827;text-decoration:underline}.g-btn{display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 14px;border-radius:9999px;background:var(--g-surface);color:var(--g-on-surface);border:1px solid var(--g-border);font-weight:500;font-size:14px;line-height:1;box-shadow:0 1px 2px rgba(var(--g-shadow),.3),0 1px 3px 1px rgba(var(--g-shadow),.15);transition:background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .12s ease;text-decoration:none}.g-btn:hover{background:#f1f3f4}.g-btn:active{transform:scale(.99);background:#e8eaed}.g-btn:focus-visible{outline:2px solid var(--g-primary);outline-offset:2px}.g-btn--filled{background:var(--g-primary);color:#fff;border-color:transparent;box-shadow:0 1px 2px rgba(var(--g-shadow),.3),0 2px 6px rgba(var(--g-shadow),.22)}.g-btn--filled:hover{background:var(--g-primary-hover)}.g-btn--filled:active{background:var(--g-primary-hover);transform:scale(.99)}.g-btn--outlined{background:#fff;color:var(--g-on-surface);border-color:var(--g-border)}.g-btn--ghost{border-color:transparent;background:transparent;box-shadow:none}.g-btn--ghost:hover{background:#f1f3f4}