:root{font-family:Microsoft YaHei,PingFang SC,sans-serif;color:#333}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:#ececec}.page{min-height:100vh;display:grid;place-items:center;position:relative}.login-wrap{display:flex;align-items:center;gap:34px}.slogan-block{display:flex;align-items:center;gap:12px}.slogan-vertical{margin:0;color:#e2231a;font-size:64px;line-height:1.03;letter-spacing:2px;writing-mode:vertical-rl;text-orientation:upright}.slogan-lenovo{font-size:72px;letter-spacing:.35em;font-weight:800}.welcome-pill{width:36px;border-radius:18px;background:#000;color:#fff;padding:6px 0;text-align:center;display:flex;flex-direction:column;gap:4px;font-size:24px;line-height:1}.form-block{width:420px}.form-block h1{margin:0 0 20px;text-align:center;font-size:46px;letter-spacing:4px;color:#2f2f2f}.form-block input{width:100%;height:52px;border:1px solid #d6d6d6;border-radius:4px;background:#f4f4f4;outline:none;padding:0 18px;font-size:30px;color:#444;margin-bottom:14px}.form-block input::placeholder{color:#8f8f8f}.captcha-row{display:flex;align-items:center;gap:12px;margin-bottom:20px}.captcha-input{margin-bottom:0;width:58%}.captcha-box{width:42%;height:52px;border:1px solid #bcc7c9;border-radius:3px;background:linear-gradient(135deg,#c5d0b3,#d9e0c7);color:#2b2b8f;font-size:34px;font-style:italic;font-weight:700;letter-spacing:6px;cursor:pointer}.submit-btn{width:100%;height:58px;border:0;border-radius:6px;background:#3f6d80;color:#f3f8fb;font-size:36px;letter-spacing:10px;cursor:pointer}.submit-btn:disabled{opacity:.65;cursor:not-allowed}.submit-btn:hover:not(:disabled){background:#375f70}.form-tip{margin:0 0 12px;min-height:22px;font-size:15px;text-align:center;color:#666}.form-tip.is-error{color:#c0392b}.form-tip.is-success{color:#1e7e34}footer{position:absolute;bottom:34px;color:#b7b7b7;font-size:16px}@media (max-width: 920px){.page{place-items:start center;padding-top:150px;overflow-x:hidden}.login-wrap{transform:none;width:calc(100vw - 20px);max-width:390px;gap:8px;align-items:center;justify-content:center}.slogan-block{gap:5px;flex:0 0 62px;justify-content:flex-end}.slogan-vertical,.slogan-lenovo{font-size:34px;line-height:1;letter-spacing:.08em}.welcome-pill{width:22px;border-radius:11px;padding:4px 0;gap:2px;font-size:14px}.form-block{width:auto;flex:1 1 auto;min-width:0;max-width:300px}.form-block h1{margin-bottom:10px;font-size:28px;letter-spacing:1px}.form-block input{height:38px;padding:0 10px;font-size:18px;margin-bottom:8px}.captcha-row{gap:6px;margin-bottom:10px}.captcha-box{height:38px;font-size:20px;letter-spacing:3px}.submit-btn{height:42px;font-size:22px;letter-spacing:4px}footer{bottom:18px;font-size:13px}}