/* ============================================
   Login Page Styles (Old Version)
   ============================================ */

.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 20px;
    box-sizing: border-box;
}

.login-box {
    width: 100%;
    max-width: 380px;
    background: #fff;
    border-radius: 20px;
    box-shadow: 0 25px 80px rgba(0,0,0,0.3);
    padding: 40px 36px;
    box-sizing: border-box;
}

.login-header {
    text-align: center;
    margin-bottom: 36px;
}

.login-logo {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
    border-radius: 20px;
}

.login-logo img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.login-header h1 {
    font-size: 26px;
    font-weight: 700;
    color: #1a1a2e;
    margin-bottom: 8px;
}

.login-header p {
    color: #888;
    font-size: 14px;
}

.login-page .form-group {
    margin-bottom: 20px;
}

.login-page .input-wrapper {
    position: relative;
    width: 100%;
}

.login-page .input-icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: #999;
    font-size: 16px;
    transition: color 0.3s;
}

.login-page .form-input {
    width: 100%;
    max-width: 100%;
    height: 52px;
    padding: 0 20px 0 52px;
    border: 2px solid #f0f0f0;
    border-radius: 12px;
    font-size: 16px;
    transition: all 0.3s;
    background: #fafafa;
    box-sizing: border-box;
}

.login-page .form-input:focus {
    outline: none;
    border-color: #667eea;
    background: #fff;
}

.login-page .form-input:focus + .input-icon {
    color: #667eea;
}

.login-page .form-input::placeholder {
    color: #aaa;
}

.login-page .captcha-group {
    display: flex;
    gap: 12px;
    align-items: center;
}

/* min-width:0 允许输入框在窄屏下正常收缩，否则默认 min-width:auto 会被内容撑住 */
.login-page .captcha-group .input-wrapper {
    flex: 1 1 0;
    min-width: 0;
}

.login-page .captcha-group .form-input {
    max-width: none;
}

.login-page .captcha-img {
    flex: 0 0 auto;
    width: 120px;
    height: 52px;
    border-radius: 12px;
    cursor: pointer;
    border: 2px solid #f0f0f0;
    background: #fafafa;
    /* 保持 120x40 原始比例，不随容器变形或放大模糊 */
    object-fit: contain;
}

.login-page .btn-login {
    width: 100%;
    height: 52px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    margin-top: 8px;
}

.login-page .btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.5);
}

.login-page .btn-login:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.login-page .login-footer {
    text-align: center;
    margin-top: 28px;
    padding-top: 24px;
    border-top: 1px solid #f5f5f5;
    color: #aaa;
    font-size: 13px;
}

.login-page .error-msg {
    background: #fff2f0;
    border: 1px solid #ffccc7;
    color: #ff4d4f;
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 14px;
    display: none;
}

.login-page .error-msg.show {
    display: block;
}

.login-page .lang-switcher {
    position: absolute;
    top: 20px;
    right: 20px;
    display: flex;
    gap: 8px;
    background: rgba(255, 255, 255, 0.2);
    padding: 6px 10px;
    border-radius: 20px;
    backdrop-filter: blur(10px);
}

.login-page .lang-switcher a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 13px;
    padding: 4px 10px;
    border-radius: 12px;
    transition: all 0.3s;
}

.login-page .lang-switcher a:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.15);
}

.login-page .lang-switcher a.active {
    color: #667eea;
    background: #fff;
    font-weight: 600;
}

/* ============================================
   移动端适配
   ============================================ */
@media (max-width: 480px) {
    .login-page {
        padding: 16px;
        align-items: flex-start;
        padding-top: 56px;
    }

    .login-box {
        max-width: none;
        padding: 28px 20px;
        border-radius: 16px;
    }

    .login-header {
        margin-bottom: 24px;
    }

    .login-logo {
        width: 64px;
        height: 64px;
        border-radius: 16px;
    }

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

    .login-header p {
        font-size: 13px;
    }

    .login-page .form-group {
        margin-bottom: 16px;
    }

    .login-page .form-input {
        height: 48px;
        padding: 0 14px 0 44px;
        font-size: 16px; /* 保持 16px，避免 iOS 聚焦自动放大 */
    }

    .login-page .input-icon {
        left: 14px;
        font-size: 15px;
    }

    .login-page .captcha-group {
        gap: 8px;
    }

    .login-page .captcha-img {
        width: 96px;
        height: 48px;
        border-radius: 10px;
    }

    .login-page .btn-login {
        height: 48px;
    }

    .login-page .lang-switcher {
        top: 12px;
        right: 12px;
        padding: 4px 8px;
    }

    .login-page .login-footer {
        margin-top: 20px;
        padding-top: 18px;
        font-size: 12px;
    }
}

@media (max-width: 340px) {
    .login-page .captcha-img {
        width: 84px;
    }
}