/* 登录页面容器 */
.login-page {
    min-height: calc(100vh - 140px);
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem;
    position: relative;
    overflow: hidden;
}

/* 登录表单容器 */
.login-container {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 480px;
    position: relative;
    z-index: 1;
    border: 2px solid var(--gold);
    background: linear-gradient(135deg, #fff 0%, var(--light-gold) 100%);
}

/* 表单标签切换 */
.form-tabs {
    display: flex;
    justify-content: center;
    margin-bottom: 2rem;
    border-bottom: 2px solid rgba(196, 30, 58, 0.1);
}

.tab-btn {
    background: none;
    border: none;
    padding: 1rem 2rem;
    font-size: 1.1rem;
    color: #666;
    cursor: pointer;
    position: relative;
    transition: all 0.3s ease;
}

.tab-btn::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-red);
    transition: width 0.3s ease;
}

.tab-btn.active {
    color: var(--primary-red);
}

.tab-btn.active::after {
    width: 100%;
}

/* 表单内容 */
.form-content {
    display: none;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s ease;
}

.form-content.active {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: #333;
    font-size: 0.9rem;
}

.form-group input {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus {
    border-color: var(--primary-red);
    box-shadow: 0 0 0 2px rgba(196, 30, 58, 0.1);
    outline: none;
}

/* 验证码输入框 */
.verification-input {
    display: flex;
    gap: 1rem;
}

.verification-input input {
    flex: 1;
}

.send-code-btn {
    padding: 0.8rem 1.2rem;
    background: var(--primary-red);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s ease;
    white-space: nowrap;
}

.send-code-btn:hover {
    background: var(--secondary-red);
}

/* 表单选项 */
.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: 16px;
    height: 16px;
    cursor: pointer;
}

.forgot-password {
    color: var(--primary-red);
    text-decoration: none;
    transition: color 0.3s ease;
}

.forgot-password:hover {
    color: var(--secondary-red);
}

/* 提交按钮 */
.submit-btn {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(to right, var(--primary-red), var(--secondary-red));
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 1.1rem;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(196, 30, 58, 0.2);
}

/* 第三方登录 */
.third-party-login {
    margin-top: 2rem;
    text-align: center;
}

.third-party-login p {
    color: #666;
    margin-bottom: 1rem;
    position: relative;
}

.third-party-login p::before,
.third-party-login p::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 60px;
    height: 1px;
    background: #ddd;
}

.third-party-login p::before {
    left: 20%;
}

.third-party-login p::after {
    right: 20%;
}

.login-icons {
    display: flex;
    justify-content: center;
    gap: 2rem;
}

.icon-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease;
}

.icon-btn:hover {
    transform: scale(1.1);
}

.icon-btn img {
    width: 24px;
    height: 24px;
}

/* 装饰元素 */
.decorations {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.lantern {
    position: absolute;
    width: 100px;
    height: auto;
    opacity: 0.8;
    animation: swing 3s ease-in-out infinite;
}

.lantern.left {
    left: 5%;
    top: 10%;
}

.lantern.right {
    right: 5%;
    top: 10%;
    animation-delay: 0.5s;
}

@keyframes swing {
    0%, 100% {
        transform: rotate(-5deg);
    }
    50% {
        transform: rotate(5deg);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .login-container {
        padding: 1.5rem;
    }

    .form-tabs {
        margin-bottom: 1.5rem;
    }

    .tab-btn {
        padding: 0.8rem 1.5rem;
    }

    .third-party-login p::before,
    .third-party-login p::after {
        width: 40px;
    }

    .lantern {
        width: 60px;
    }
}

/* 暗色模式支持 */
@media (prefers-color-scheme: dark) {
    .login-container {
        background: linear-gradient(135deg, #2a2a2a 0%, #3a3a3a 100%);
        border-color: var(--gold);
    }

    .form-group label {
        color: #fff;
    }

    .form-group input {
        background: #2a2a2a;
        border-color: #444;
        color: #fff;
    }

    .form-group input:focus {
        border-color: var(--gold);
    }

    .checkbox-label span {
        color: #fff;
    }

    .third-party-login p {
        color: #ccc;
    }

    .third-party-login p::before,
    .third-party-login p::after {
        background: #444;
    }
}