/* 全局样式 */
:root {
    --primary-color: #e3af81;
    --secondary-color: #242424;
    --bg-color: #1a1a1a;
    --text-color: #ffffff;
    --text-secondary: #b0b0b0;
    --border-color: #333333;
    --card-bg: #242424;
    --shadow: 0 4px 15px rgba(0, 0, 0, 0.5);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* 弹窗样式 */
.popup {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(26, 26, 26, 0.9);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    animation: fadeIn 0.3s ease;
}

.popup-content {
    background-color: var(--card-bg);
    padding: 40px;
    border-radius: 15px;
    text-align: center;
    box-shadow: var(--shadow);
    max-width: 500px;
    width: 90%;
    animation: slideIn 0.3s ease;
}

.popup-content h2 {
    color: var(--primary-color);
    font-size: 2rem;
    margin-bottom: 30px;
    text-align: center;
}

.popup-content p {
    font-size: 1.5rem;
    margin-bottom: 40px;
    color: var(--text-color);
}

.popup-btn {
    background-color: var(--primary-color);
    color: var(--bg-color);
    padding: 12px 30px;
    border: none;
    border-radius: 25px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition);
}

.popup-btn:hover {
    background-color: #d19a6b;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(227, 175, 129, 0.3);
}

.close {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 2rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.close:hover {
    color: var(--text-color);
    transform: rotate(90deg);
}

/* 头部样式 */
.header {
    background-color: rgba(26, 26, 26, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    padding: 15px 0;
    border-bottom: 1px solid var(--border-color);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: nowrap;
}

.nav {
    flex: 1;
    display: flex;
    justify-content: center;
    margin: 0 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.1rem;
    font-weight: normal;
    color: var(--primary-color);
    white-space: nowrap;
}

.logo-link {
    display: inline-block;
    text-decoration: none;
    color: inherit;
    width: auto;
}

.logo i {
    font-size: 2rem;
}

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

.nav a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.nav a:hover {
    color: var(--primary-color);
}

.whatsapp-btn a {
    display: flex;
    align-items: center;
    gap: 10px;
    background-color: #25d366;
    color: white;
    padding: 10px 20px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: bold;
    transition: var(--transition);
}

.whatsapp-btn i {
    font-size: 1.2rem;
}

.whatsapp-btn .nav-whatsapp-icon {
    font-size: 1.5rem;
}

.whatsapp-btn a:hover {
    background-color: #12b755;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.3);
}

/* 英雄区域样式 */
.hero {
    background-image: url('img/1.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    height: 930px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(13, 13, 13, 0.8);
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero-content {
    margin-top: 80px;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    color: var(--text-secondary);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

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

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 15px 35px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1rem;
    transition: var(--transition);
    border: 2px solid transparent;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--bg-color);
}

.btn-primary:hover {
    background-color: #d19a6b;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(227, 175, 129, 0.3);
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: var(--bg-color);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(227, 175, 129, 0.3);
}

/* 区域标题样式 */
.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h2 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    color: white;
}

.section-title p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* 服务内容样式 */
.services {
    padding: 80px 0;
    background-color: var(--secondary-color);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.service-item {
    background-color: var(--card-bg);
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.service-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow);
    border-color: var(--primary-color);
}

.service-icon {
    width: 80px;
    height: 80px;
    background-color: rgba(227, 175, 129, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    transition: var(--transition);
}

.service-item:hover .service-icon {
    background-color: var(--primary-color);
    transform: scale(1.1);
}

.service-icon i {
    font-size: 2.5rem;
    color: var(--primary-color);
    transition: var(--transition);
}

.service-item:hover .service-icon i {
    color: var(--bg-color);
}

.service-item h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: white;
}

.service-item p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* 案件处理步骤 */
.case-steps {
    padding: 100px 0;
    background-color: var(--bg-color);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-top: 50px;
    align-items: stretch;
}

.step-item {
    text-align: center;
    padding: 20px;
    display: flex;
    flex-direction: column;
    min-height: 100%;
}

.step-icon {
    width: 100px;
    height: 100px;
    background-color: rgba(227, 175, 129, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    transition: var(--transition);
}

.step-item:hover .step-icon {
    transform: scale(1.1);
    background-color: var(--primary-color);
}

.step-icon i {
    font-size: 2.5rem;
    color: var(--primary-color);
    transition: var(--transition);
}

.step-item:hover .step-icon i {
    color: var(--bg-color);
}

.step-item h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: white;
}

.step-item p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* 诈骗类型 */
.scam-types {
    padding: 100px 0;
    background-color: var(--bg-color);
}

.scam-types-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 60px;
}

.scam-type-item {
    background-color: var(--card-bg);
    padding: 30px;
    border-radius: 15px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.scam-type-item:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow);
}

.scam-type-item h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.scam-type-item p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.cta-button {
    text-align: center;
}

.cta-button .btn-primary {
    background-color: var(--primary-color);
    color: var(--bg-color);
    padding: 15px 30px;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: bold;
    text-decoration: none;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(227, 175, 129, 0.3);
}

.cta-button .btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(227, 175, 129, 0.4);
}

/* 案例研究样式 */
.case-studies {
    padding: 80px 0;
    background-color: var(--secondary-color);
}

.case-studies-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.case-study-item {
    background-color: var(--card-bg);
    padding: 20px;
    border-radius: 15px;
    text-align: left;
    transition: var(--transition);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.case-study-item:hover {
    transform: translateY(-10px) scale(0.98);
    box-shadow: var(--shadow);
    border-color: var(--primary-color);
}

.case-study-rating {
    margin-bottom: 15px;
    text-align: center;
}

.case-study-rating .star {
    color: rgb(227, 175, 129);
    font-size: 1.2rem;
    margin-right: 5px;
    transform: scale(1.1);
    display: inline-block;
}

.case-study-item h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: white;
}

.recovery-amount {
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 5px;
    color: var(--primary-color);
    text-align: center;
}

.recovery-amount .amount {
    font-size: 1.3rem;
}

.recovery-amount .currency {
    font-size: 0.9rem;
    margin-left: 5px;
}

.case-study-item p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 5px;
    font-style: italic;
    font-size: 0.9rem;
    flex-grow: 1;
}

.case-study-author {
    display: flex;
    align-items: center;
    gap: 15px;
    justify-content: flex-start;
    margin-bottom: 15px;
}

.author-avatar {
    width: 50px;
    height: 50px;
    background-color: rgba(227, 175, 129, 0.1);
    border-radius: 50%;
    overflow: hidden;
    background-size: cover;
    background-position: center;
}

.author-info h4 {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 5px;
}

.author-info p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: 0;
    font-style: normal;
}

/* 关于我们样式 */
.why-us {
    padding: 80px 0;
    background-color: var(--bg-color);
}

.why-us-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.why-us-item {
    text-align: center;
    padding: 30px;
}

.why-us-icon {
    width: 100px;
    height: 100px;
    background-color: rgba(227, 175, 129, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    transition: var(--transition);
}

.why-us-icon i {
    font-size: 3rem;
    color: var(--primary-color);
}

.why-us-item:hover .why-us-icon {
    transform: scale(1.1);
    background-color: rgba(227, 175, 129, 0.2);
}

.why-us-item h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: white;
}

.why-us-item p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* 联系我们样式 */
.contact {
    padding: 80px 0;
    background-color: var(--secondary-color);
}

/* 合作伙伴 */
.partners {
    padding: 60px 0;
    background-color: var(--bg-color);
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
    margin-top: 25px;
    justify-items: center;
    align-items: center;
}

.partner-item {
    padding: 4px;
    text-align: center;
    transition: var(--transition);
    width: 100%;
    max-width: 120px;
    height: 80px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.partner-item:hover {
    /* 移除卡片悬停效果 */
}

.partner-avatar {
    width: 40px;
    height: 40px;
    display: block;
    transition: var(--transition);
    object-fit: contain;
    background-color: transparent;
    margin: 0;
}

.partner-item:hover .partner-avatar {
    transform: scale(1.05);
}

.partner-item a {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    color: var(--text-color);
    text-decoration: none;
    font-size: 1.0rem;
    font-weight: 400;
    transition: var(--transition);
    width: 100%;
}

.partner-item:hover a {
    color: var(--primary-color);
    text-decoration: underline;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 40px;
    align-items: start;
}

.contact-info {
    background-color: var(--card-bg);
    padding: 30px;
    border-radius: 15px;
    border: 1px solid var(--border-color);
}

.contact-info h3 {
    font-size: 1.8rem;
    margin-bottom: 25px;
    color: white;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
    padding: 15px;
    background-color: rgba(13, 13, 13, 0.5);
    border-radius: 10px;
    transition: var(--transition);
}

.contact-item:hover {
    background-color: rgba(13, 13, 13, 0.8);
    transform: translateX(5px);
}

.contact-item i {
    font-size: 2rem;
    color: var(--primary-color);
    width: 35px;
    text-align: center;
}

.contact-item span {
    font-size: 1.1rem;
    color: var(--text-color);
}

/* 表单样式 */
.contact-form {
    background-color: var(--card-bg);
    padding: 30px;
    border-radius: 15px;
    border: 1px solid var(--border-color);
}

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

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-color);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(227, 175, 129, 0.1);
}

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

/* 页脚样式 */
.footer {
    background-color: var(--secondary-color);
    padding: 40px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

.footer-links {
    display: flex;
    gap: 25px;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

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

.footer-social {
    display: flex;
    gap: 15px;
}

.footer-social a {
    width: 45px;
    height: 45px;
    background-color: var(--card-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: var(--transition);
}

.footer-social a i {
    font-size: 1.5rem;
}

.footer-social a:hover {
    background-color: var(--primary-color);
    color: var(--bg-color);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding: 5px 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* 动画效果 */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideIn {
    from { transform: translateY(-50px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* 响应式设计 */
@media (max-width: 768px) {
    /* 弹窗 */
    .popup-content {
        padding: 30px 20px;
    }
    
    .popup-content h2 {
        font-size: 1.8rem;
    }
    
    .popup-content p {
        font-size: 1.2rem;
    }
    
    /* 头部 */
    .nav {
        display: none;
    }
    
    /* 英雄区域 */
    .hero {
        height: auto;
        min-height: 600px;
        padding: 80px 0;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .hero-content p {
        font-size: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    /* 按钮 */
    .btn {
        padding: 12px 25px;
        font-size: 1rem;
    }
    
    /* 区域标题 */
    .section-title h2 {
        font-size: 2rem;
    }
    
    /* 诈骗类型 */
    .scam-types-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .scam-type-item {
        padding: 20px;
    }
    
    /* 案件处理步骤 */
    .case-steps {
        padding: 60px 0;
    }
    
    .steps-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .step-icon {
        width: 80px;
        height: 80px;
    }
    
    .step-icon i {
        font-size: 2rem;
    }
    
    /* 服务内容 */
    .services {
        padding: 60px 0;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    /* 案例研究 */
    .case-studies {
        padding: 60px 0;
    }
    
    .case-studies-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    /* 为什么选择我们 */
    .why-us {
        padding: 60px 0;
    }
    
    .why-us-grid {
        grid-template-columns: 1fr;
    }
    
    /* 联系我们 */
    .contact {
        padding: 60px 0;
    }
    
    /* 合作伙伴响应式 */
    .partners {
        padding: 50px 0;
    }
    
    .partners-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    
    .partner-avatar {
        width: 40px;
        height: 40px;
    }
    
    .partner-item {
        max-width: 120px;
        padding: 4px;
        height: 80px;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
    }
    
    .partner-item a {
            font-size: 0.9rem;
            gap: 2px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            width: 100%;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    /* 页脚 */
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-links {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    /* 英雄区域 */
    .hero-content h1 {
        font-size: 2rem;
    }
    
    /* 区域标题 */
    .section-title h2 {
        font-size: 1.8rem;
    }
    
    /* 服务内容 */
    .service-item {
        padding: 25px 20px;
    }
    
    /* 联系我们 */
    .contact-info,
    .contact-form {
        padding: 25px 20px;
    }
}

/* 移动端侧边栏菜单 */
.mobile-menu-btn {
    display: none;
    cursor: pointer;
    font-size: 1.5rem;
    color: var(--primary-color);
    padding: 8px;
}

.mobile-sidebar {
    position: fixed;
    top: 0;
    left: -300px;
    width: 280px;
    height: 100vh;
    background-color: rgba(26, 26, 26, 0.95);
    padding: 40px 20px;
    z-index: 1000;
    transition: left 0.3s ease;
    overflow-y: auto;
}

.mobile-sidebar.open {
    left: 0;
}

.sidebar-close {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 1.8rem;
    color: var(--primary-color);
    cursor: pointer;
}

.sidebar-nav ul {
    list-style: none;
    padding: 0;
    margin-top: 60px;
}

.sidebar-nav ul li {
    margin-bottom: 20px;
}

.sidebar-nav ul li a {
    display: block;
    color: var(--primary-color);
    text-decoration: none;
    font-size: 1.2rem;
    padding: 12px 15px;
    transition: background-color 0.3s ease;
}

.sidebar-nav ul li a:hover {
    background-color: rgba(227, 175, 129, 0.1);
    border-radius: 5px;
}

.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 999;
    display: none;
}

.overlay.show {
    display: block;
}

/* 移动端响应式设计 */
@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }
    
    .nav {
        display: none;
    }
    
    /* 隐藏WhatsApp按钮文字，只显示图标 */
    .whatsapp-btn a span {
        display: none;
    }
    
    /* 调整图标大小和按钮内边距，设置为正圆 */
    .whatsapp-btn a {
        padding: 12px;
        width: 48px;
        height: 48px;
        border-radius: 50%;
        justify-content: center;
        align-items: center;
    }
    
    .whatsapp-btn .nav-whatsapp-icon {
        font-size: 1.6rem;
    }
}