* { box-sizing: border-box; }
body {
    margin: 0;
    background: linear-gradient(135deg, #2c3e50 0%, #4ca1af 100%);
    min-height: 100vh;
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
    display: flex; align-items: center; justify-content: center;
}
.login-wrap { width: 100%; max-width: 380px; padding: 20px; }
.login-card {
    background: #fff;
    border-radius: 8px;
    padding: 32px 28px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, .15);
}
.login-header h1 {
    margin: 0;
    font-size: 22px;
    color: #2c3e50;
}
.login-header p { color: #7f8c8d; margin: 4px 0 24px; font-size: 13px; }

.login-error {
    background: #fdf0ed;
    color: #e74c3c;
    padding: 8px 12px;
    border-radius: 4px;
    font-size: 13px;
    margin-bottom: 16px;
}

.login-form { display: flex; flex-direction: column; gap: 12px; }
.login-form label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: #34495e; }
.login-form input {
    padding: 10px 12px;
    border: 1px solid #dcdfe6;
    border-radius: 4px;
    font-size: 14px;
}
.login-form input:focus {
    outline: none;
    border-color: #1abc9c;
    box-shadow: 0 0 0 3px rgba(26, 188, 156, .15);
}
.login-form button {
    margin-top: 8px;
    padding: 10px;
    border: 0;
    background: #1abc9c;
    color: #fff;
    border-radius: 4px;
    font-size: 14px;
    cursor: pointer;
    transition: background .15s;
}
.login-form button:hover { background: #16a085; }

.login-footer { text-align: center; margin-top: 16px; color: #95a5a6; }