/* 登录页面样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #3b82f6;
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
}

body {
    font-family: "Microsoft YaHei", "PingFang SC", "Source Han Sans", -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: url('/static/images/thinkchat-admin-bg.jpg') no-repeat center center fixed;
    background-size: cover;
    background-position: center;
    min-height: 100vh;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
}

.login-container {
    width: 100%;
    max-width: 420px;
}

.login-card {
    background-color: var(--card-bg);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    overflow: hidden;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.login-header {
    padding: 40px 35px 30px;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.login-header .logo-image {
    width: 200px;
    height: auto;
    margin-bottom: 12px;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

.login-header h1 {
    font-size: 24px;
    color: var(--text-primary);
    margin-bottom: 8px;
    font-weight: 500;
    letter-spacing: 0.5px;
}

.login-header p {
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 400;
}

.login-form {
    padding: 35px;
}

.form-group {
    margin-bottom: 22px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-primary);
    font-size: 14px;
}

.form-group input[type="text"],
.form-group input[type="password"],
.form-group input[type="email"] {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 14px;
    transition: border-color 0.2s;
    background-color: var(--card-bg);
    color: var(--text-primary);
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group input::placeholder {
    color: #94a3b8;
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 22px;
}

.checkbox-group input[type="checkbox"] {
    width: 16px;
    height: 16px;
    cursor: pointer;
    accent-color: var(--primary-color);
}

.checkbox-group label {
    margin-bottom: 0;
    font-size: 14px;
    color: var(--text-secondary);
    cursor: pointer;
    font-weight: 400;
}

.login-btn {
    width: 100%;
    padding: 13px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: opacity 0.2s;
}

.login-btn:hover {
    opacity: 0.9;
}

.login-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.login-footer {
    padding: 25px 35px;
    text-align: center;
    border-top: 1px solid var(--border-color);
}

.login-footer p {
    color: var(--text-secondary);
    font-size: 13px;
}

/* 验证码容器 */
.captcha-container {
    display: flex;
    align-items: center;
    gap: 12px;
}

.captcha-input {
    flex: 1;
}

.captcha-image {
    border: 1px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    transition: border-color 0.2s;
    flex-shrink: 0;
}

.captcha-image:hover {
    border-color: var(--primary-color);
}

/* 密码显示/隐藏容器 */
.password-container {
    position: relative;
    display: flex;
    align-items: center;
}

.password-container input[type="password"],
.password-container input[type="text"] {
    padding-right: 44px;
}

.password-toggle {
    position: absolute;
    right: 12px;
    background: none;
    border: none;
    padding: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: color 0.2s;
    z-index: 1;
}

.password-toggle:hover {
    color: var(--primary-color);
}

.password-toggle:focus {
    outline: none;
}

/* 响应式 */
@media (max-width: 480px) {
    .login-card {
        border-radius: 6px;
    }

    .login-header {
        padding: 30px 25px 25px;
    }

    .login-header h1 {
        font-size: 22px;
    }

    .login-form {
        padding: 25px;
    }

    .login-footer {
        padding: 20px 25px;
    }
}