:root {
    --primary: #15336e;
    --secondary: #866a2d;
    --accent: #c9a145;
    --light: #f8f9fa;
    --dark: #343a40;
    --gray: #6c757d;
    --light-gray: #e9ecef;
    --transition: all 0.3s ease;
    --shadow: 0 4px 12px rgba(0,0,0,0.1);
    --shadow-hover: 0 8px 24px rgba(0,0,0,0.15);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
}

.info {
    background: linear-gradient(135deg, #f5f6f7 0%, #eef1f5 100%);
    color: #333;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    width: 100%;
}

.login-container {
    display: flex;
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(0,0,0,0.15);
}

.banner {
    flex: 1;
    background: linear-gradient(to top right, var(--primary), #819affb3);
    padding: 60px 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('/static/image/leftimage.jpeg') center/cover;
    opacity: 0.2;
}

.banner-content {
    position: relative;
    z-index: 2;
    color: white;
}

.banner h1 {
    font-size: 2.8rem;
    margin-bottom: 20px;
}

.banner p {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 15px;
    line-height: 1.8;
}

.features {
    margin-top: 40px;
}

.feature {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.feature i {
    width: 35px;
    font-size: 1.5rem;
    color: var(--accent);
}

.feature span {
    font-size: 1.05rem;
}

.login-form {
    flex: 1;
    padding: 60px 50px;
    display: flex;
    flex-direction: column;
}

.form-header {
    text-align: center;
    margin-bottom: 40px;
}

.form-header h2 {
    font-size: 2.2rem;
    color: var(--primary);
    margin-bottom: 10px;
}

.form-header p {
    color: var(--gray);
}

.tabs {
    display: flex;
    background: var(--light-gray);
    border-radius: 50px;
    margin-bottom: 30px;
}

.tab {
    flex: 1;
    text-align: center;
    padding: 15px;
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
    border-radius: 50px;
}

.tab.active {
    background: var(--primary);
    color: white;
}

.form-group {
    margin-bottom: 25px;
}

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

.input-with-icon {
    position: relative;
}

.input-with-icon i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray);
}

.input-with-icon input {
    padding-left: 45px !important;
}

input {
    width: 100%;
    padding: 14px 20px !important;
    border: 1px solid var(--light-gray);
    border-radius: 10px;
    font-size: 1rem !important;
    transition: var(--transition);
}

input:focus {
    border-color: var(--secondary);
    outline: none;
    box-shadow: 0 0 0 3px rgba(134, 106, 45, 0.2);
}

.captcha-row {
    display: flex;
    gap: 15px;
}

.captcha-input {
    flex: 1;
}

.captcha-img {
    width: 120px;
    height: 50px;
    background: var(--light);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--primary);
    cursor: pointer;
    user-select: none;
}

.remember-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 20px 0;
}

.remember-me {
    display: flex;
    align-items: center;
    gap: 8px;
}

.remember-me input {
    width: auto;
}

.remember-me label {
    color: var(--gray);
    font-size: 0.95rem;
}

.forgot-password {
    color: var(--secondary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
}

.forgot-password:hover {
    text-decoration: underline;
}

.submit-btn {
    background: var(--secondary);
    color: white;
    border: none;
    padding: 16px;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    width: 100%;
}

.submit-btn:hover {
    background: var(--primary);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.divider {
    display: flex;
    align-items: center;
    margin: 30px 0;
    color: var(--gray);
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid var(--light-gray);
}

.divider span {
    padding: 0 15px;
    font-size: 0.9rem;
}

.social-login {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 30px;
}

.social-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--light);
    border: 1px solid var(--light-gray);
    cursor: pointer;
    transition: var(--transition);
}

.social-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}

.social-btn.wechat {
    color: #09bb07;
}

.social-btn.qq {
    color: #12b7f5;
}

.social-btn.weibo {
    color: #e6162d;
}

.register-link {
    margin: 20px auto;
    text-align: center;
    color: var(--gray);
    font-size: 0.95rem;
}

.register-link a {
    color: var(--secondary);
    text-decoration: none;
    font-weight: 500;
}

.register-link a:hover {
    text-decoration: underline;
}

.form-note {
    background: var(--light);
    border-left: 4px solid var(--secondary);
    padding: 15px;
    border-radius: 0 8px 8px 0;
    margin-top: 20px;
    font-size: 0.95rem;
    color: var(--gray);
}

@media (max-width: 992px) {
    .login-container {
        flex-direction: column;
    }

    .banner {
        padding: 40px 30px;
    }

    .login-form {
        padding: 40px 30px;
    }
}

@media (max-width: 576px) {
    .captcha-row {
        flex-direction: column;
    }

    .captcha-img {
        width: 100%;
    }

    .remember-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
}

.user-type-selector {
    display: flex;
    border: 1px solid #e0e6ed;
    border-radius: 10px;
    overflow: hidden;
    margin: 20px 0;
    background: #f8f9fa;
}

.user-type-option {
    flex: 1;
    padding: 15px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 600;
    color: #7f8c8d;
}

.user-type-option.active {
    background: #3498db;
    color: white;
}

.qrcode {
    display: flex;
    gap: 20px;
    padding-top: 10px;
    margin-left: 50px;
}

.qrcode img {
    width: 120px;
    height: auto;
    object-fit: cover;
}

@media (max-width: 576px) {
    .banner-content {
        display: none;
    }
}