/* 基础布局样式 - 确保响应式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Arial', 'Microsoft YaHei', sans-serif;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 80px 0;
    background-color: var(--bg-dark);
}

.section:nth-child(even) {
    background-color: var(--bg-darker);
}

.section-title {
    font-size: 28px;
    color: var(--secondary-color);
    text-align: center;
    margin-bottom: 16px;
}

.section-desc {
    font-size: 16px;
    color: var(--text-medium);
    text-align: center;
    max-width: 800px;
    margin: 0 auto 40px;
}

/* 按钮基础样式 */
.btn {
    padding: 8px 16px;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    font-size: 14px;
}

.btn:hover {
    opacity: 0.9;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    border: none;
}

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
}

/* 导航栏样式 */
.navbar {
    background-color: var(--bg-black);
    box-shadow: 0 2px 10px rgba(255, 255, 255, 0.05);
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo i {
    color: var(--primary-light);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-link {
    font-size: 15px;
    color: var(--text-white);
    font-weight: 500;
    text-decoration: none;
    transition: color 0.3s ease;
}

.nav-link:hover, 
.nav-link.active {
    color: var(--primary-color);
}

.nav-cta {
    display: flex;
    gap: 15px;
}

/* 移动端菜单按钮 */
.menu-toggle {
    display: none;
    background: transparent;
    border: none;
    color: var(--text-white);
    font-size: 24px;
    cursor: pointer;
    z-index: 101;
}

/* 导航栏右侧 - 登录相关样式 */
.nav-right {
    display: flex;
    align-items: center;
    gap: 15px;
}

.auth-container {
    position: relative;
}

.auth-btn {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 8px 12px;
    border: none;
    background: transparent;
    color: var(--text-white);
    font-size: 14px;
    cursor: pointer;
    border-radius: 4px;
    transition: background-color 0.3s;
}

.auth-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

/* 已登录用户菜单 */
.user-menu {
    position: relative;
}

.user-menu-wrapper {
    position: relative;
}

.user-avatar, 
.user-trigger {
    height: 36px;
    border-radius: 50%;
    background-color: var(--primary-light);
    color: var(--bg-black);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background-color 0.3s;
}

.user-avatar:hover, 
.user-trigger:hover {
    background-color: var(--primary-color);
    color: var(--bg-black);
}

/* 用户下拉菜单 */
.user-dropdown {
    position: absolute;
    top: 45px;
    right: 0;
    width: 180px;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
    padding: 10px 0;
    z-index: 999;
    display: none;
}

.user-menu:hover .user-dropdown,
.user-menu-wrapper:hover .user-menu {
    display: block;
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 15px;
    color: #333;
    font-size: 14px;
    text-decoration: none;
    transition: background-color 0.3s;
    position: relative;
    z-index: 1000;
}

.dropdown-item:hover {
    background-color: #f5f5f5;
}

.dropdown-item i {
    width: 16px;
    text-align: center;
    color: var(--primary-color);
}

/* 英雄区样式 */
.hero {
    background-color: var(--bg-black);
    padding: 100px 0;
    text-align: center;
    background-image: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), url('./assets/images/hero-bg.jpg');
    background-size: cover;
    background-position: center;
}

.hero-title {
    font-size: 42px;
    color: var(--text-white);
    margin-bottom: 20px;
}

.hero-desc {
    font-size: 18px;
    color: var(--text-medium);
    max-width: 700px;
    margin: 0 auto 40px;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
}

/* 服务板块样式 */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.service-card {
    background-color: var(--bg-black);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 30px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(212, 175, 55, 0.1);
}

.service-icon {
    font-size: 36px;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.service-title {
    font-size: 22px;
    color: var(--text-white);
    margin-bottom: 15px;
}

.service-price {
    font-size: 18px;
    color: var(--primary-light);
    font-weight: 600;
    margin-bottom: 15px;
}

.service-desc {
    font-size: 15px;
    color: var(--text-medium);
    line-height: 1.6;
}

/* 项目案例样式 */
.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.project-card {
    flex: 0 0 auto;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    width: calc((100% - 48px) / 3);
    min-width: 300px;
    max-width: 400px;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}

.project-img img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
    border-bottom: 1px solid var(--border-color);
}

.project-info {
    padding: 20px;
}

.project-title {
    margin: 0 0 10px;
    font-size: 0.8rem;
    color: var(--text-white);
}

.project-desc {
    margin: 0;
    color: var(--text-medium);
    font-size: 0.95rem;
    line-height: 1.6;
}

.view-more {
    text-align: center;
    margin-top: 50px;
}

/* 轮播图相关样式 */
.project-filters {
    display: flex;
    gap: 10px;
    margin: 20px 0 30px;
    flex-wrap: wrap;
    justify-content: center;
    padding: 0;
    max-width: 100%;
}

.project-carousel {
    position: relative;
    overflow: hidden;
    margin: 0 auto;
    padding: 0;
    max-width: 100%;
}

.project-track {
    display: flex;
    gap: 24px;
    padding: 10px 0;
    transition: transform 0.3s ease;
    will-change: transform;
    touch-action: pan-x;
    user-select: none;
}

/* 轮播控制按钮 */
.carousel-control {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: white;
    border: none;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    opacity: 0.8;
    transition: opacity 0.3s, transform 0.3s;
}

.carousel-control.prev {
    left: 0;
}

.carousel-control.next {
    right: 0;
}

.carousel-control:hover {
    opacity: 1;
    transform: translateY(-50%) scale(1.1);
}

/* 轮播指示点 */
.carousel-indicators {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 20px;
}

.indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--text-medium);
    cursor: pointer;
    transition: background-color 0.3s ease;
}

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

/* 联系我们板块样式 */
.contact {
    background-color: var(--bg-darker);
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.contact-icon {
    font-size: 22px;
    color: var(--primary-color);
    margin-top: 3px;
}

.contact-title {
    font-size: 18px;
    color: var(--text-white);
    margin-bottom: 5px;
}

.contact-text {
    font-size: 15px;
    color: var(--text-medium);
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 10px;
}

.social-link {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--border-color);
    color: var(--text-white);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    text-decoration: none;
}

.social-link:hover {
    background-color: var(--primary-color);
    color: var(--bg-black);
}

.contact-form {
    background-color: var(--bg-black);
    padding: 35px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
}

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

.form-label {
    display: block;
    font-size: 15px;
    color: var(--text-light);
    margin-bottom: 8px;
}

.form-input, 
.form-textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 15px;
    color: var(--text-white);
    background-color: var(--bg-darker);
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-input:focus, 
.form-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(212, 175, 55, 0.2);
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
}

/* 页脚样式 */
.footer {
    background-color: var(--bg-black);
    color: var(--text-white);
    padding: 50px 0 20px;
    border-top: 1px solid var(--border-color);
}

.footer-top {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    font-size: 22px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-desc {
    font-size: 14px;
    color: var(--text-medium);
    line-height: 1.6;
}

.footer-title {
    font-size: 18px;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
    color: var(--text-white);
}

.footer-title::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 40px;
    height: 3px;
    background-color: var(--primary-color);
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-link {
    font-size: 14px;
    color: var(--text-medium);
    transition: color 0.3s ease;
    text-decoration: none;
}

.footer-link:hover {
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    font-size: 13px;
    color: var(--text-medium);
}

/* 登录弹窗样式 - 暗色主题 */
.login-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 遮罩层 */
.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(4px);
    cursor: pointer;
}

/* 弹窗内容 */
.modal-content {
    position: relative;
    width: 100%;
    max-width: 420px;
    background-color: var(--bg-dark);
    border-radius: 12px;
    padding: 30px 25px;
    box-shadow: 0 8px 30px rgba(212, 175, 55, 0.15);
    border: 1px solid var(--border-color);
    z-index: 1;
}

/* 关闭按钮 */
.modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    border: none;
    background: transparent;
    font-size: 18px;
    color: var(--text-medium);
    cursor: pointer;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    transition: all 0.3s;
}

.modal-close:hover {
    color: var(--text-white);
    background-color: var(--border-color);
}

/* 弹窗标题 */
.modal-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-white);
    margin-bottom: 5px;
    text-align: center;
}

.modal-subtitle {
    font-size: 13px;
    color: var(--text-medium);
    text-align: center;
    margin-bottom: 25px;
}

/* 登录/注册切换标签 */
.auth-tabs {
    display: flex;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.auth-tab {
    flex: 1;
    padding: 10px 0;
    background: transparent;
    border: none;
    font-size: 16px;
    font-weight: 500;
    color: var(--text-medium);
    cursor: pointer;
    position: relative;
    transition: color 0.3s;
}

.auth-tab:hover {
    color: var(--primary-light);
}

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

.auth-tab.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary-color);
}

/* 表单切换容器 */
.auth-form {
    transition: all 0.3s ease;
}

/* 表单样式 */
.auth-form .form-group {
    margin-bottom: 18px;
}

.auth-form .form-label {
    display: block;
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 6px;
}

.auth-form .form-input {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 14px;
    color: var(--text-white);
    background-color: var(--bg-darker);
    transition: border-color 0.3s, box-shadow 0.3s;
}

.auth-form .form-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(212, 175, 55, 0.2);
}

/* 密码输入组 */
.pwd-input-group {
    position: relative;
}

.toggle-pwd {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    border: none;
    background: transparent;
    color: var(--text-medium);
    cursor: pointer;
    transition: color 0.3s;
}

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

/* 记住密码 & 忘记密码 */
.form-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 13px;
    margin-bottom: 10px;
}

.form-checkbox {
    color: var(--text-light);
    cursor: pointer;
}

.form-checkbox input {
    margin-right: 5px;
    accent-color: var(--primary-color);
}

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

.forgot-pwd:hover {
    color: var(--primary-light);
    text-decoration: underline;
}

/* 表单底部 */
.form-footer {
    text-align: center;
    font-size: 13px;
    color: var(--text-medium);
    margin-top: 20px;
}

.register-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.register-link:hover {
    color: var(--primary-light);
    text-decoration: underline;
}

/* 响应式适配 - 平板 */
@media (max-width: 992px) {
    .contact-container {
        grid-template-columns: 1fr;
    }
    
    .hero-title {
        font-size: 36px;
    }
}

/* 响应式适配 - 移动端 */
@media (max-width: 768px) {
    /* 移动端菜单 */
    .menu-toggle {
        display: block;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: 0;
        height: 100vh;
        width: 250px;
        background-color: var(--bg-black);
        flex-direction: column;
        gap: 20px;
        padding: 80px 20px;
        box-shadow: -2px 0 10px rgba(0,0,0,0.3);
        transform: translateX(100%);
        transition: transform 0.3s ease;
        z-index: 100;
    }

    .nav-menu.active {
        transform: translateX(0);
    }

    .nav-cta {
        display: none;
    }

    /* 容器适配 */
    .container {
        max-width: 100%;
        padding: 0 15px;
    }

    /* 服务卡片适配 */
    .services-grid {
        gap: 20px;
    }

    /* 联系表单适配 */
    .contact-form {
        padding: 25px 15px;
    }

    /* 英雄区文字适配 */
    .hero-title {
        font-size: 28px;
    }
    
    .hero-desc {
        font-size: 16px;
    }

    /* 导航栏右侧适配 */
    .nav-right {
        gap: 10px;
    }
    
    .auth-btn {
        font-size: 13px;
        padding: 6px 10px;
    }

    /* 弹窗适配 */
    .modal-content {
        margin: 0 15px;
        padding: 25px 20px;
        background-color: var(--bg-darker);
    }
}