*{box-sizing:border-box}body{margin:0;background:#faf7f2;color:#28231f;font:16px/1.7 system-ui,-apple-system,"Microsoft YaHei",sans-serif}main.security-main{max-width:560px;margin:40px auto;padding:24px}h1{font-size:30px;line-height:1.3;margin:24px 0 12px;color:#802010}p{color:#74675e}a{color:#802010}.security-brand{font-size:20px;font-weight:700;text-decoration:none}.security-card{padding:24px;border:1px solid #e3d9cb;border-radius:14px;background:#fffdf9}label{display:block;margin:18px 0 6px;font-weight:550}input{width:100%;padding:13px;border:1px solid #d5c9bc;border-radius:8px;background:#fff;font:inherit;min-width:0}button{font:inherit;cursor:pointer}.security-primary{width:100%;padding:13px;background:#802010;color:white;border:0;border-radius:8px;margin:24px 0 4px}.security-primary:disabled,.code-button:disabled{opacity:.5;cursor:default}.code-row{display:flex;align-items:center;gap:10px}.code-row input{flex:1;width:100%;min-width:0}.code-button{white-space:nowrap;padding:12px 10px;border:1px solid #d5c9bc;background:#faf7f2;border-radius:8px;color:#802010;min-height:48px}.security-notice{padding:12px 14px;background:#f7eee7;border-radius:8px;font-size:14px}.security-message{white-space:pre-line;font-size:15px;color:#802010;min-height:26px}.security-foot{font-size:14px}.security-switch{display:flex;gap:8px}.security-switch button{flex:1;padding:10px;border:1px solid #d5c9bc;border-radius:8px;background:white}.security-switch .active{background:#802010;color:#fff;border-color:#802010}[hidden]{display:none!important}fieldset{border:0;padding:0;margin:0}input:focus-visible,button:focus-visible{outline:2px solid #802010;outline-offset:2px}@media(max-width:480px){main.security-main{margin:8px auto;padding:20px 16px}.security-card{padding:20px 16px}h1{font-size:27px}.code-button{font-size:14px}}