:root{--color-bg: #F4EEEC;--color-bg-soft: #F1E7E1;--color-bg-card: #FFFCF7;--color-text: #2D2A26;--color-text-secondary: #6B6058;--color-text-tertiary: #9C9088;--color-primary: #C0614A;--color-primary-deep: #A34A38;--color-primary-light: rgba(192, 97, 74, .1);--color-primary-wash: #FBEAE3;--color-border: rgba(192, 97, 74, .16);--max-width: 720px;--wrap: 1140px;--font-serif: "Source Serif Pro", "Songti SC", "STSong", "PingFang SC", "PingFang TC", serif;--font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "PingFang TC", "Helvetica Neue", Arial, sans-serif}*{box-sizing:border-box}html,body{margin:0;padding:0;background:var(--color-bg);color:var(--color-text);font-family:var(--font-sans);font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{color:inherit}.container{max-width:var(--max-width);margin:0 auto;padding:0 20px}.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}header.site-header{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--color-bg) 88%,transparent);backdrop-filter:saturate(120%) blur(10px);-webkit-backdrop-filter:saturate(120%) blur(10px);border-bottom:1px solid var(--color-border)}header.site-header .bar{max-width:var(--wrap);margin:0 auto;padding:14px 24px;display:flex;align-items:center;gap:16px}a.brand{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-serif);font-size:19px;font-weight:700;color:var(--color-primary);text-decoration:none;letter-spacing:.3px;white-space:nowrap}a.brand img{width:28px;height:28px;border-radius:7px;display:block}header.site-header nav.main{display:flex;gap:22px;margin-left:auto;font-size:14.5px}header.site-header nav.main a{color:var(--color-text-secondary);text-decoration:none;transition:color .15s}header.site-header nav.main a:hover{color:var(--color-primary)}.lang-switch{display:inline-flex;align-items:center;gap:2px;padding:3px;background:var(--color-primary-light);border-radius:999px}.lang-switch a{font-size:12.5px;line-height:1;padding:6px 10px;border-radius:999px;color:var(--color-text-secondary);text-decoration:none}.lang-switch a.active{background:var(--color-bg-card);color:var(--color-primary);font-weight:600;box-shadow:0 1px 3px #4a2d1e1f}.btn-download{display:inline-block;padding:9px 18px;background:var(--color-primary);color:#fff;border-radius:999px;font-size:14px;font-weight:600;text-decoration:none;transition:background .15s,transform .15s;white-space:nowrap}.btn-download:hover{background:var(--color-primary-deep);transform:translateY(-1px)}@media(max-width:820px){header.site-header nav.main{display:none}}main.narrow{min-height:60vh;padding:40px 0 80px}main.wide{padding:0 0 40px}footer.site-footer{padding:48px 0 40px;border-top:1px solid var(--color-border);background:var(--color-bg-soft);color:var(--color-text-tertiary);font-size:13px;text-align:center}footer.site-footer .tagline{font-family:var(--font-serif);font-size:16px;color:var(--color-text-secondary);margin-bottom:14px}footer.site-footer a{color:var(--color-text-secondary);text-decoration:none}footer.site-footer a:hover{color:var(--color-primary)}footer.site-footer .links{margin-bottom:12px}footer.site-footer .links a{margin:0 10px}@media(prefers-reduced-motion:reduce){.btn-download:hover{transform:none}}.legal-content{font-size:15px;line-height:1.8}.legal-content h1{font-family:var(--font-serif);font-size:28px;font-weight:700;margin:0 0 8px;color:var(--color-text)}.legal-content h2{font-size:18px;font-weight:600;margin:32px 0 12px;color:var(--color-primary)}.legal-content h3{font-size:16px;font-weight:600;margin:24px 0 8px;color:var(--color-text)}.legal-content p{margin:0 0 14px}.legal-content ul,.legal-content ol{margin:0 0 16px;padding-left:24px}.legal-content li{margin-bottom:6px}.legal-content strong{color:var(--color-text);font-weight:600}.legal-content code{background:var(--color-primary-light);padding:2px 6px;border-radius:4px;font-size:13px;font-family:SF Mono,Menlo,Consolas,monospace}.legal-content hr{border:0;border-top:1px solid var(--color-border);margin:32px 0}.legal-content blockquote{border-left:3px solid var(--color-primary);background:var(--color-bg-card);padding:16px 20px;margin:16px 0;border-radius:8px;color:var(--color-text)}.legal-content blockquote p:last-child{margin-bottom:0}.legal-content a{color:var(--color-primary);text-decoration:underline;text-underline-offset:3px}.legal-content table{border-collapse:collapse;width:100%;margin:16px 0;font-size:14px}.legal-content th,.legal-content td{border:1px solid var(--color-border);padding:8px 12px;text-align:left}.legal-content th{background:var(--color-bg-card);font-weight:600}