/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #00b85c;
    --primary-dark: #00994d;
    --secondary-color: #0066cc;
    --text-dark: #333333;
    --text-light: #666666;
    --text-gray: #999999;
    --bg-light: #f5f7fa;
    --white: #ffffff;
    --gradient-green: linear-gradient(135deg, #00b85c 0%, #00994d 100%);
    --gradient-blue: linear-gradient(135deg, #0066cc 0%, #0052a3 100%);
    --iconGrad1: linear-gradient(135deg, #00b85c, #00994d);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

img {
    max-width: 100%;
    display: block;
}

/* 导航栏 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo svg,
.logo-svg {
    height: 40px;
    width: auto;
}

.nav {
    display: flex;
    gap: 30px;
}

.nav a {
    font-size: 15px;
    color: var(--text-dark);
    position: relative;
}

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

.nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

.nav a:hover::after {
    width: 100%;
}

.btn-login {
    padding: 8px 24px;
    background: var(--gradient-green);
    color: var(--white);
    border-radius: 20px;
    font-size: 14px;
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 184, 92, 0.4);
}

/* 主视觉区域 */
.hero {
    position: relative;
    min-height: 600px;
    display: flex;
    align-items: center;
    margin-top: 70px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
    overflow: hidden;
}

.hero-bg-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    position: absolute;
    top: 0;
    left: 0;
}

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

.hero-content {
    text-align: center;
    color: var(--white);
    max-width: 800px;
    margin: 0 auto;
    padding: 60px 20px;
    position: relative;
}

.hero-logo {
    margin-bottom: 30px;
}

.hero-logo img {
    max-width: 200px;
    margin: 0 auto;
}

.hero-title {
    font-size: 56px;
    font-weight: bold;
    margin-bottom: 15px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.hero-subtitle {
    font-size: 42px;
    font-weight: 300;
    margin-bottom: 25px;
    letter-spacing: 8px;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.hero-desc {
    font-size: 18px;
    line-height: 1.8;
    margin-bottom: 40px;
    opacity: 0.95;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.btn-download {
    display: inline-block;
    padding: 15px 50px;
    background: var(--white);
    color: var(--primary-color);
    font-size: 18px;
    font-weight: bold;
    border-radius: 30px;
    transition: all 0.3s ease;
}

.btn-download:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.hero-platforms {
    margin-top: 50px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.hero-platforms img {
    width: 100%;
    display: block;
}

/* 八大核心优势 */
.features {
    padding: 80px 0;
    background: var(--bg-light);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 36px;
    color: var(--text-dark);
    margin-bottom: 15px;
}

.section-desc {
    font-size: 18px;
    color: var(--text-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.feature-item {
    background: var(--white);
    padding: 35px 25px;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}

.feature-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.feature-item h3 {
    font-size: 16px;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.feature-item p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
}

/* 功能亮点区域 */
.feature-highlight,
.feature-marketing,
.feature-management,
.feature-customer {
    padding: 80px 0;
    background: var(--white);
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 60px;
}

.highlight-item.reverse {
    flex-direction: row-reverse;
}

.highlight-content {
    flex: 1;
}

.highlight-content h2 {
    font-size: 32px;
    color: var(--text-dark);
    margin-bottom: 20px;
    line-height: 1.4;
}

.highlight-content p {
    font-size: 16px;
    color: var(--text-light);
    line-height: 1.9;
}

.highlight-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.highlight-image img {
    max-width: 100%;
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.platform-image {
    margin: 0 auto;
    max-width: 900px;
}

.platform-image img {
    width: 100%;
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.feature-demo {
    background: #fff;
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 500px;
}

/* 翻译演示 */
.translate-demo {
    display: flex;
    flex-direction: column;
    gap: 20px;
    align-items: center;
}

.demo-chat {
    width: 100%;
}

.demo-chat.left {
    text-align: left;
}

.demo-chat.right {
    text-align: right;
}

.chat-bubble {
    display: inline-block;
    padding: 15px 20px;
    border-radius: 15px;
    font-size: 14px;
    max-width: 80%;
}

.demo-chat.left .chat-bubble {
    background: #e8f5e9;
    color: #333;
    border-bottom-left-radius: 5px;
}

.demo-chat.right .chat-bubble {
    background: linear-gradient(135deg, #00b85c, #0066cc);
    color: #fff;
    border-bottom-right-radius: 5px;
}

.demo-arrow {
    font-size: 24px;
    color: var(--primary-color);
}

/* 营销演示 */
.marketing-demo {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
}

.demo-card {
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    padding: 20px;
    border-radius: 12px;
    text-align: center;
    font-size: 14px;
    font-weight: 500;
    transition: transform 0.3s ease;
}

.demo-card:hover {
    transform: translateY(-5px);
}

/* 团队演示 */
.team-demo {
    text-align: center;
}

.org-chart {
    display: flex;
    flex-direction: column;
    gap: 20px;
    align-items: center;
}

.org-node {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: #fff;
    padding: 12px 25px;
    border-radius: 25px;
    font-size: 14px;
}

.org-node.main {
    background: linear-gradient(135deg, #667eea, #764ba2);
    font-size: 16px;
    padding: 15px 30px;
}

.org-connections {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    justify-content: center;
}

.org-connections .org-node {
    background: linear-gradient(135deg, #11998e, #38ef7d);
}

/* 客户演示 */
.customer-demo {
    text-align: center;
}

.customer-tags {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 25px;
}

.tag {
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 13px;
}

.tag.vip {
    background: linear-gradient(135deg, #f093fb, #f5576c);
    color: #fff;
}

.tag.normal {
    background: linear-gradient(135deg, #4facfe, #00f2fe);
    color: #fff;
}

.tag.potential {
    background: linear-gradient(135deg, #a8edea, #fed6e3);
    color: #666;
}

.customer-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
}

.customer-actions span {
    padding: 10px 20px;
    background: #f5f7fa;
    border-radius: 10px;
    font-size: 14px;
}

/* 多平台支持 */
.feature-platform {
    padding: 80px 0;
    background: linear-gradient(180deg, #e8f5e9 0%, #ffffff 100%);
}

.platform-wrapper {
    text-align: center;
}

.platform-header h2 {
    font-size: 36px;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.platform-header h3 {
    font-size: 24px;
    color: var(--text-dark);
    margin-bottom: 50px;
}

.platform-grid {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 40px;
}

.platform-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.platform-item svg {
    width: 60px;
    height: 60px;
    transition: transform 0.3s ease;
}

.platform-item:hover svg {
    transform: scale(1.1);
}

.platform-item span {
    font-size: 16px;
    color: var(--text-dark);
    font-weight: 500;
}

/* CTA区域 */
.cta {
    padding: 100px 0;
    background: linear-gradient(135deg, #00b85c 0%, #0066cc 100%);
    text-align: center;
}

.cta-content {
    max-width: 800px;
    margin: 0 auto;
    color: var(--white);
}

.cta-content h2 {
    font-size: 40px;
    margin-bottom: 25px;
}

.cta-content p {
    font-size: 18px;
    line-height: 1.8;
    margin-bottom: 40px;
    opacity: 0.95;
}

.btn-download-large {
    display: inline-block;
    padding: 18px 60px;
    background: var(--white);
    color: var(--primary-color);
    font-size: 20px;
    font-weight: bold;
    border-radius: 35px;
    transition: all 0.3s ease;
}

.btn-download-large:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

/* 常见问题 */
.faq-section {
    padding: 80px 0;
    background: var(--bg-light);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--white);
    border-radius: 12px;
    margin-bottom: 15px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    cursor: pointer;
    font-weight: 500;
    color: var(--text-dark);
    transition: background 0.3s ease;
}

.faq-question:hover {
    background: #f8f9fa;
}

.faq-icon {
    transition: transform 0.3s ease;
    color: var(--primary-color);
    flex-shrink: 0;
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    background: #fafbfc;
}

.faq-item.active .faq-answer {
    max-height: 200px;
}

.faq-answer p {
    padding: 0 25px 20px;
    color: var(--text-light);
    line-height: 1.8;
    font-size: 15px;
}

/* 页脚 */
.footer {
    background: #1a1a1a;
    color: var(--white);
    padding: 60px 0 30px;
}

.footer-content {
    display: flex;
    gap: 80px;
    margin-bottom: 50px;
}

.footer-logo svg,
.footer-logo .logo-svg {
    height: 50px;
    width: auto;
}

.footer-links {
    flex: 1;
    display: flex;
    gap: 60px;
}

.link-group h4 {
    font-size: 16px;
    margin-bottom: 20px;
    color: var(--white);
}

.link-group a,
.link-group p {
    display: block;
    font-size: 14px;
    color: #999999;
    margin-bottom: 12px;
}

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

.footer-bottom {
    border-top: 1px solid #333;
    padding-top: 30px;
    text-align: center;
}

.footer-bottom p {
    font-size: 14px;
    color: #666;
    margin-bottom: 15px;
}

.friend-links {
    font-size: 13px;
    color: #666;
}

.friend-links a {
    color: #999;
    margin: 0 8px;
}

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

/* 响应式设计 */
@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .highlight-item,
    .highlight-item.reverse {
        flex-direction: column;
        text-align: center;
    }

    .footer-content {
        flex-direction: column;
        gap: 40px;
    }

    .footer-links {
        flex-wrap: wrap;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .nav {
        display: none;
    }

    .hero-title {
        font-size: 36px;
    }

    .hero-subtitle {
        font-size: 28px;
        letter-spacing: 4px;
    }

    .hero-desc {
        font-size: 16px;
    }

    .section-title {
        font-size: 28px;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .highlight-content h2 {
        font-size: 26px;
    }

    .cta-content h2 {
        font-size: 28px;
    }

    .platform-grid {
        gap: 25px;
    }

    .platform-item img {
        width: 60px;
        height: 60px;
    }

    .footer-links {
        flex-direction: column;
    }
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.feature-item,
.highlight-item,
.highlight-item.reverse,
.platform-item {
    animation: fadeInUp 0.6s ease forwards;
}

.feature-item:nth-child(1) { animation-delay: 0.1s; }
.feature-item:nth-child(2) { animation-delay: 0.2s; }
.feature-item:nth-child(3) { animation-delay: 0.3s; }
.feature-item:nth-child(4) { animation-delay: 0.4s; }
.feature-item:nth-child(5) { animation-delay: 0.5s; }
.feature-item:nth-child(6) { animation-delay: 0.6s; }
.feature-item:nth-child(7) { animation-delay: 0.7s; }
.feature-item:nth-child(8) { animation-delay: 0.8s; }

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}