:root{--ink: #262322;--muted: #7a7268;--line: #e6e1d8;--bg: #ffffff;--card: #fffcf8;--accent: #8c4a32;--ok: #2f6f4e;--green: #12a150;--band: #b3a892;--nav-bg: #fbfaf7;--wrap: 1040px}*{box-sizing:border-box}body{margin:0;font-family:Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--ink)}.app{min-height:100vh;display:flex;flex-direction:column}.site-beian{margin-top:auto;padding:18px 20px 22px;text-align:center;font-size:12px;color:var(--muted);display:flex;flex-wrap:wrap;justify-content:center;gap:10px 18px}.site-beian a{color:var(--muted);text-decoration:none}.site-beian a:hover{color:var(--accent)}.navbar{position:sticky;top:0;z-index:20;background:var(--nav-bg);border-bottom:1px solid var(--line)}.nav-inner{max-width:var(--wrap);margin:0 auto;display:flex;align-items:center;gap:28px;padding:16px 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