:root{--app-bg: #f5f0e7;--app-bg-soft: #fbf8f2;--card-bg: rgba(255, 251, 246, .88);--card-border: rgba(111, 86, 66, .12);--surface-muted: rgba(89, 67, 49, .05);--surface-strong: rgba(89, 67, 49, .08);--text-primary: #2f241d;--text-secondary: #6d5a4d;--text-tertiary: #9d8d82;--brand-color: #9f4f33;--brand-strong: #7e381f;--brand-gradient: linear-gradient(135deg, #b06140 0%, #8c3f23 100%);--brand-light: rgba(159, 79, 51, .12);--brand-shadow: 0 16px 40px rgba(101, 53, 34, .16);--border-color: rgba(111, 86, 66, .12);--divider-strong: rgba(111, 86, 66, .18);--radius-xl: 30px;--radius-lg: 20px;--radius-md: 14px;--radius-pill: 999px;--shadow-soft: 0 18px 44px rgba(63, 45, 32, .08);--shadow-hover: 0 20px 48px rgba(63, 45, 32, .12);--font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", sans-serif;--font-serif: "Songti SC", "STSong", "Noto Serif CJK SC", "Source Han Serif SC", "SimSun", serif;--font-display: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", var(--font-sans)}html{scroll-behavior:smooth}body{margin:0;background-color:var(--app-bg);background-image:radial-gradient(circle at 12% 12%,rgba(182,131,101,.14) 0%,transparent 34%),radial-gradient(circle at 82% 18%,rgba(126,56,31,.08) 0%,transparent 28%),radial-gradient(circle at 78% 82%,rgba(163,130,88,.12) 0%,transparent 30%),linear-gradient(180deg,var(--app-bg-soft) 0%,var(--app-bg) 58%,#efe6d8 100%);background-attachment:fixed;font-family:var(--font-sans);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;line-height:1.6;-webkit-tap-highlight-color:transparent}*{box-sizing:border-box}button,input,select,textarea{font:inherit}a{color:inherit}code{font-family:ui-monospace,SFMono-Regular,Consolas,Liberation Mono,Menlo,monospace}