:root{--navy:#12304a;--navy2:#174562;--teal:#0f766e;--gold:#e4a642;--ink:#182433;--muted:#6e7d8c;--line:#e6edf2;--paper:#f7fafc;--white:#fff;--danger:#b42318;--shadow:0 14px 40px rgba(18,48,74,.08)}*{box-sizing:border-box}body{margin:0;font-family:Inter,"PingFang SC","Microsoft YaHei",sans-serif;background:var(--paper);color:var(--ink)}button,input,textarea,select{font:inherit}.hidden{display:none!important}.login-shell{min-height:100vh;display:grid;place-items:center;background:radial-gradient(circle at 10% 15%,#245d75 0,transparent 35%),linear-gradient(135deg,#092236,#153d57)}.login-card{width:min(420px,calc(100% - 32px));background:#fff;border-radius:22px;padding:42px;box-shadow:0 24px 70px rgba(0,0,0,.3)}.mark,.brand-mark{display:grid;place-items:center;background:linear-gradient(135deg,#dbad5d,#e8c57b);color:#17364b;font-weight:900}.mark{width:48px;height:48px;border-radius:14px;font-size:23px}.eyebrow{margin:17px 0 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var(--line);border-radius:11px;padding:15px;line-height:1.6;outline:none}.upload-row{display:flex;align-items:center;gap:10px;margin:11px 0 16px}.file-label{cursor:pointer;color:var(--teal);font-weight:700;font-size:12px}.file-label input{display:none}.primary,.outline,.small{border-radius:9px;padding:11px 15px;cursor:pointer;font-weight:750}.primary{border:1px solid var(--teal);background:var(--teal);color:white}.primary:hover{background:#0b615a}.outline{border:1px solid #cbd8de;background:#fff;color:var(--navy)}.small{padding:9px 11px;font-size:12px}.wide{width:100%}.tip{font-size:11px;line-height:1.55;color:#8b9aa5;margin:13px 0 0}.empty-state{display:grid;place-content:center;text-align:center;min-height:410px;color:var(--muted)}.empty-icon{font-size:37px;color:#86b5b0}.reply-card{min-height:410px}.reply-head{display:flex;justify-content:space-between;gap:12px;border-bottom:1px solid var(--line);padding-bottom:13px}.reply-head h3{margin:0 0 5px}.risk{padding:6px 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