:root{--bg:#D7E4E6;--deep:#C4D4D6;--panel:#F3F7F7;--soft:#E4EEEF;--ink:#1E2C2E;--text:#2A3A3C;--muted:#4A6064;--sub:#6A8084;--teal:#4A8A8C;--sand:#C4A070;--border:rgba(30,44,46,.14);--strong-border:rgba(74,138,140,.42);--shadow:0 12px 28px rgba(30,44,46,.08);--max:980px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:Arial,"Microsoft YaHei",sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden}.wrap{width:min(var(--max),calc(100% - 32px));margin-inline:auto}.skip-link{position:fixed;left:16px;top:-80px;z-index:1000;background:var(--panel);color:var(--ink);padding:10px 14px}.skip-link:focus{top:10px}.site-topline{position:fixed;z-index:80;top:0;left:0;right:0;height:20px;background:var(--ink);color:var(--panel);font-size:12px}.topline-inner{height:20px;display:flex;align-items:center;justify-content:space-between}.text-btn,.drawer-btn,.search-head button,.drawer-head 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var(--strong-border);box-shadow:var(--shadow);padding:20px;border-radius:0 0 10px 10px}.search-head{display:flex;align-items:center;justify-content:space-between}.search-head h2{font-size:20px;margin:0}.search-card label{display:block;font-size:13px}.search-card input{width:100%;min-height:44px;border:1px solid var(--border);border-radius:8px;padding:0 12px;background:white;color:var(--ink)}.search-presets{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.search-presets a{color:var(--ink);text-decoration:none;border:1px solid var(--teal);padding:8px 12px;border-radius:999px}.mobile-nav{display:none}.is-locked{overflow:hidden}a:hover,button:hover{filter:brightness(.97)}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid var(--sand);outline-offset:2px}.page-dual .content-section:nth-child(even){margin-left:10%}.page-marquee .content-section{border-left:4px solid var(--teal)}.page-insert 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