:root{--bg:#f2f5f9;--panel:#fff;--line:#e3e8ef;--text:#1b2430;--muted:#6b7a8f;--primary:#b3261e;--primary-dark:#8c1c16;--navy:#12314f;--green:#1f7a4d;--amber:#b26a00;--red:#b3261e;--shadow:0 1px 2px rgba(16,24,40,.04),0 6px 18px rgba(16,24,40,.06);--radius:12px}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;font-size:14px;line-height:1.6}a{color:var(--navy);text-decoration:none}a:hover{text-decoration:underline}.topbar{justify-content:space-between;gap:16px;padding:12px 24px;background:var(--navy);color:#fff;position:-webkit-sticky;position:sticky;top:0;z-index:20}.topbar,.topbar .brand{display:flex;align-items:center}.topbar .brand{gap:10px;font-weight:700;letter-spacing:.5px}.topbar .brand-mark{width:26px;height:26px;border-radius:8px;background:var(--primary);display:grid;place-items:center;font-size:15px}.topbar 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12px;color:var(--muted)}.tabs button.active{color:var(--navy);border-bottom-color:var(--primary);font-weight:600}.timeline{list-style:none;padding:0;margin:0}.timeline li{position:relative;padding:0 0 14px 18px;border-left:2px solid var(--line);margin-left:4px}.timeline li:last-child{border-left-color:transparent;padding-bottom:0}.timeline li:before{content:"";position:absolute;left:-5px;top:6px;width:8px;height:8px;border-radius:50%;background:var(--primary)}.timeline .t{font-size:12px;color:var(--muted)}.empty{padding:28px;text-align:center;font-size:13px}.crumbs,.empty{color:var(--muted)}.crumbs{font-size:12px;margin-bottom:8px}.crumbs a{color:var(--muted)}