:root{--bg:#f4f6f9;--panel:#fff;--field:#fff;--border:#e2e6ec;--text:#1c2430;--muted:#7b8493;--accent:#2563eb;--accent-soft:#e8f0fe;--danger:#dc2626;--empty:#fafbfc;--shadow:0 1px 3px rgba(16,24,40,.06),0 1px 2px rgba(16,24,40,.04)}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Malgun Gothic,Apple SD Gothic Neo,Roboto,sans-serif;-webkit-font-smoothing:antialiased}.wrap{max-width:1400px;margin:0 auto;padding:20px 24px 60px}.header{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:18px}.title{font-size:20px;font-weight:700;margin:0}.title span{color:var(--accent)}.datenav{display:flex;align-items:center;gap:8px}.datenav input[type=date]{font-size:15px;padding:8px 10px;border:1px solid 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var(--border);border-bottom:none;font-weight:700;background:var(--empty)}.member-id{margin-left:8px;font-size:11.5px;font-weight:500;color:var(--muted)}.member-noname{color:var(--muted);font-weight:400}.usage-monthnav{display:flex;align-items:center;justify-content:center;gap:12px;margin:0 0 14px}.usage-month{font-size:15px;font-weight:700;min-width:130px;text-align:center}.usage-month-tag{margin-left:6px;font-size:11px;font-weight:600;color:var(--accent);background:var(--accent-soft);border-radius:10px;padding:2px 7px}@media (max-width:640px){input,select,textarea{font-size:16px!important}.chat-inline{height:auto;min-height:calc(100vh - 170px);min-height:calc(100dvh - 170px);overflow:visible}.chat-list{overflow:visible;flex:none}.chat-input-row{position:-webkit-sticky;position:sticky;bottom:0;background:var(--panel);z-index:2}}