:root{--brand:#1a8fd1;--brand-deep:#0288d1;--brand2:#4fc3f7;--bg:#f4f6f9;--panel:#fff;--text:#111418;--sec:#6b7280;--ter:#9aa1ab;--sep:rgba(16,24,40,.08);--hover:rgba(2,136,209,.07);--chip:#eef2f6;--grad-btn:linear-gradient(135deg,#4fc3f7,#0288d1);--link:#0277bd;--danger:#b91c1c;--r-sm:8px;--r-input:11px;--r-btn:12px;--r-card:16px;--r-auth:20px;--r-pill:999px;--sh-card:0 1px 3px rgba(16,24,40,.06);--sh-auth:0 20px 60px rgba(10,40,70,.14);--sh-btn:0 4px 14px rgba(2,136,209,.3);--font:-apple-system,"SF Pro Text","PingFang TC",system-ui,"Segoe 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18px;border-radius:var(--r-btn);border:none;background:var(--grad-btn);color:#fff;font-weight:650;font-size:14px;cursor:pointer;white-space:nowrap;transition:opacity .15s;box-shadow:var(--sh-btn)}.btn:hover,button:hover{opacity:.88;color:#fff;text-decoration:none}button:disabled{opacity:.5;cursor:not-allowed}.btn.sec,button.sec{background:var(--panel);color:var(--text);border:1px solid var(--sep);box-shadow:none}button.sec:hover{background:var(--hover);opacity:1}.btn-block{width:100%;height:48px}.badge{display:inline-flex;align-items:center;font-size:10.5px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;padding:3px 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