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

:root {
    --primary: #4361ee;
    --primary-light: #4895ef;
    --secondary: #3f37c9;
    --accent: #3f37c9;
    --success: #4cc9f0;
    --warning: #3f37c9;
    --light: #f8f9fa;
    --dark: #212529;
    --gray: #6c757d;
    --light-gray: #e9ecef;
    --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    --transition: all 0.3s ease;
}

body {
    font-family: 'Noto Sans SC', sans-serif;
    background-color: #f9fbfd;
    color: var(--dark);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* 头部导航 */
.navbar {
    position: sticky;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.05);
    z-index: 1000;
    padding: 15px 0;
    transition: var(--transition);
}

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

.logo {
    display: flex;
    align-items: center;
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--primary);
    text-decoration: none;
    letter-spacing: -0.5px;
}

.logo i {
    margin-right: 10px;
    color: var(--accent);
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: 30px;
}

.nav-links a {
    text-decoration: none;
    color: var(--dark);
    font-weight: 600;
    transition: var(--transition);
    position: relative;
    padding: 5px 0;
    font-size: 1.05rem;
}

.nav-links a:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    transition: var(--transition);
}

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

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

.cta-button {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    border: none;
    padding: 12px 28px;
    border-radius: 30px;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 5px 15px rgba(67, 97, 238, 0.3);
    font-size: 1.05rem;
}
.cta-button {
    display: inline-flex;      /* 使用flex布局 */
    align-items: center;       /* 垂直居中 */
    justify-content: center;   /* 水平居中 */
    gap: 1px;                 /* 图标和文本之间的间距 */
}

.cta-button svg {
    width: 20px;              /* 设置SVG固定尺寸 */
    height: 20px;
    flex-shrink: 0;           /* 防止SVG被压缩 */
}
.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(67, 97, 238, 0.4);
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
}

/* 首屏区域 */
.hero {
    padding: 60px 0 100px;
    background: linear-gradient(135deg, #f0f5ff, #e6f0ff);
    position: relative;
    overflow: hidden;
}

.hero:before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    /* width: 50%;
    height: 100%; */
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="none"><path d="M0,0 Q50,30 100,0 L100,100 Q50,70 0,100 Z" fill="%234361ee" opacity="0.03"/></svg>');
    background-size: cover;
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    z-index: 2;
}

.hero-text {
    flex: 1;
    padding-right: 50px;
    max-width: 600px;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--dark);
}

.hero h1 span {
    color: var(--primary);
    position: relative;
}

.hero h1 span:after {
    content: '';
    position: absolute;
    bottom: 10px;
    left: 0;
    width: 100%;
    height: 15px;
    background-color: rgba(67, 97, 238, 0.2);
    z-index: -1;
}

.hero p {
    font-size: 1.25rem;
    color: var(--gray);
    margin-bottom: 40px;
    font-weight: 500;
}

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

.btn-secondary {
    background: white;
    color: var(--primary);
    border: 2px solid var(--primary);
    padding: 12px 30px;
    border-radius: 30px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1.05rem;
    font-weight: 700;
}

.btn-secondary:hover {
    background-color: var(--light);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(67, 97, 238, 0.15);
}

.dashboard-preview {
    background: white;
    border-radius: 15px;
    box-shadow: var(--card-shadow);
    padding: 20px;
    max-width: 550px;
    width: 100%;
    position: relative;
    overflow: hidden;
    border: 1px solid var(--light-gray);
}

.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--light-gray);
    margin-bottom: 20px;
}

.dashboard-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.tab {
    padding: 8px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
    background-color: var(--light-gray);
    color: var(--gray);
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

.tab.active {
    background: linear-gradient(90deg, var(--primary), var(--accent));
    color: white;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 20px;
}

.stat-card {
    background: var(--light);
    border-radius: 10px;
    padding: 15px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(67, 97, 238, 0.1);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(67, 97, 238, 0.1);
}

.stat-card h3 {
    font-size: 1.8rem;
    color: var(--primary);
    margin-bottom: 5px;
    font-weight: 800;
}

.stat-card p {
    font-size: 0.95rem;
    color: var(--gray);
    margin-bottom: 0;
    font-weight: 500;
}

.chart-placeholder {
    height: 150px;
    background: linear-gradient(120deg, #e0e7ff, #d6e4ff);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-weight: 600;
    font-size: 1.1rem;
}

/* 功能区域 */
.features {
    padding: 30px 0;
    background-color: white;
    position: relative;
}

.section-header {
    text-align: center;
    max-width: 1200px;
    margin: 0 auto 50px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 900;
    margin-bottom: 20px;
    color: var(--dark);
    position: relative;
    display: inline-block;
}

.section-title:after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--gray);
    font-weight: 500;
}

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

.feature-card {
    background: white;
    border-radius: 15px;
    padding: 35px 30px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--light-gray);
    box-shadow: var(--card-shadow);
    position: relative;
    overflow: hidden;
}

.feature-card:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
}

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

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    color: white;
    font-size: 2rem;
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 15px;
    color: var(--dark);
}

.feature-description {
    color: var(--gray);
    font-size: 1.05rem;
    font-weight: 500;
}

/* 优势区域 */
.advantages {
    padding: 30px 0;
    background: linear-gradient(135deg, #f0f5ff, #e6f0ff);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.advantage-card {
    background: white;
    border-radius: 15px;
    padding: 40px 30px;
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    border: 1px solid rgba(67, 97, 238, 0.1);
}

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

.advantage-icon {
    width: 70px;
    height: 70px;
    border-radius: 20px;
    background: linear-gradient(135deg, var(--accent), var(--warning));
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    color: white;
    font-size: 1.8rem;
}

.advantage-title {
    font-size: 1.6rem;
    font-weight: 800;
    margin-bottom: 20px;
    color: var(--dark);
}

.advantage-description {
    color: var(--gray);
    font-size: 1.05rem;
    font-weight: 500;
}

.advantage-number {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 3.5rem;
    font-weight: 900;
    color: rgba(10, 30, 118, 0.05);
    line-height: 1;
}

/* 定价区域 */
.pricing {
    padding: 60px 0;
    background-color: white;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.pricing-card {
    background: white;
    border-radius: 15px;
    padding: 40px 30px;
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    border: 1px solid var(--light-gray);
}

.popular-badge {
    position: absolute;
    top: 20px;
    right: -20px;
    background: var(--accent);
    color: white;
    padding: 5px 40px;
    transform: rotate(45deg);
    font-size: 0.8rem;
    font-weight: 600;
}

.pricing-card.popular {
    border: 2px solid var(--primary);
    transform: scale(1.05);
}

.pricing-card.popular .pricing-price {
    color: var(--primary);
}

.pricing-title {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 15px;
}

.pricing-price {
    font-size: 2.8rem;
    font-weight: 900;
    margin: 20px 0;
    color: var(--dark);
}

.pricing-period {
    font-size: 1rem;
    color: var(--gray);
    display: block;
    font-weight: normal;
}

.pricing-features {
    list-style: none;
    margin: 30px 0;
    text-align: left;
}

.pricing-features li {
    padding: 10px 0;
    border-bottom: 1px solid var(--light-gray);
    display: flex;
    align-items: center;
    font-weight: 500;
}

.pricing-features li:before {
    content: '✓';
    color: var(--success);
    margin-right: 10px;
    font-weight: bold;
    font-size: 1.1rem;
}

/* 页脚 */
.footer {
    background: var(--dark);
    color: white;
    padding: 80px 0 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 50px;
}

.footer-column h3 {
    font-size: 1.4rem;
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 15px;
    font-weight: 700;
}

.footer-column h3:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 15px;
}

.footer-links a {
    color: #adb5bd;
    text-decoration: none;
    transition: var(--transition);
    display: flex;
    align-items: center;
    font-weight: 500;
}

.footer-links a i {
    margin-right: 10px;
    width: 20px;
    color: var(--accent);
}

.footer-links a:hover {
    color: white;
    transform: translateX(5px);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #adb5bd;
    font-size: 0.95rem;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .hero-content {
        flex-direction: column;
        text-align: center;
    }

    .hero-text {
        padding-right: 0;
        margin-bottom: 50px;
        max-width: 100%;
    }

    .hero p {
        margin: 0 auto 40px;
    }

    .hero-buttons {
        justify-content: center;
    }

    .pricing-card.popular {
        transform: scale(1);
    }
}

@media (max-width: 768px) {
    .navbar-container {
        flex-direction: column;
    }

    .nav-links {
        margin: 20px 0;
        flex-wrap: wrap;
        justify-content: center;
    }

    .nav-links li {
        margin: 0 15px 10px;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .hero:before {
        width: 100%;
        opacity: 0.1;
    }
}

/* 客服导航样式 */
.customer-service-nav {
    position: fixed;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 15px;
    background: rgba(255, 255, 255, 0.95);
    padding: 12px;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.customer-service-nav:hover {
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
    transform: translateY(-50%) translateX(5px);
}

.cs-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 12px;
    border-radius: 12px;
    text-decoration: none;
    color: #333;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.7);
    border: 1px solid rgba(0, 0, 0, 0.05);
    min-width: 44px;
    overflow: hidden;
}

.cs-link:hover {
    background: #ffffff;
    transform: translateX(5px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.cs-link img {
    width: 28px;
    height: 28px;
    object-fit: contain;
    transition: transform 0.3s ease;
}

.cs-link:hover img {
    transform: scale(1.1);
}

.cs-link span {
    display: none;
    white-space: nowrap;
    font-size: 14px;
    font-weight: 500;
    opacity: 0;
    transform: translateX(-10px);
    transition: all 0.3s ease;
}

.customer-service-nav:hover .cs-link span {
    display: inline-block;
    opacity: 1;
    transform: translateX(0);
}

/* 广告平台协作区域 */
.ad-platforms {
    padding: 60px 0;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

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

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

.platform-card {
    background: #fff;
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.platform-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 5px;
    height: 100%;
    background: var(--primary);
}

.platform-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

.platform-icon {
    width: 70px;
    height: 70px;
    margin-bottom: 20px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f1f5f9;
}

.platform-icon img {
    max-width: 40px;
    max-height: 40px;
}

.platform-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--dark);
}

.platform-description {
    color: var(--secondary);
    margin-bottom: 20px;
    line-height: 1.6;
}

.platform-stats {
    display: flex;
    justify-content: space-between;
    margin-top: 25px;
    padding-top: 20px;
    border-top: 1px solid #e2e8f0;
}

.stat {
    text-align: center;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 5px;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--secondary);
}

/* ROI提升展示区 */
.roi-section {
    padding: 60px 0;
    background: #fff;
}

.roi-container {
    display: flex;
    align-items: center;
    gap: 50px;
}

.roi-content {
    flex: 1;
}

.roi-image {
    flex: 1;
    text-align: center;
}

.roi-title {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--dark);
}

.roi-description {
    font-size: 1.1rem;
    color: var(--secondary);
    margin-bottom: 30px;
    line-height: 1.8;
}

.roi-features {
    list-style: none;
}

.roi-features li {
    margin-bottom: 15px;
    display: flex;
    align-items: center;
}

.roi-features i {
    color: var(--success);
    margin-right: 15px;
    font-size: 1.2rem;
}

.chart-container {
    background: #f8fafc;
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.chart-title {
    font-size: 1.2rem;
    font-weight: 600;
}

.chart-legend {
    display: flex;
    gap: 15px;
}

.legend-item {
    display: flex;
    align-items: center;
    font-size: 0.9rem;
}

.legend-color {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    margin-right: 5px;
}

.legend-before {
    background: var(--gray);
}

.legend-after {
    background: var(--primary);
}

.chart-bars {
    display: flex;
    align-items: flex-end;
    gap: 30px;
    height: 200px;
    padding-top: 30px;
}

.bar-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.bar-wrapper {
    display: flex;
    align-items: flex-end;
    gap: 10px;
    height: 150px;
    width: 100%;
}

.bar {
    width: 100%;
    border-radius: 4px 4px 0 0;
    transition: height 1s ease;
}

.bar-before {
    background: var(--gray);
    height: 60%;
}

.bar-after {
    background: var(--primary);
    height: 90%;
}

.bar-label {
    margin-top: 10px;
    font-weight: 600;
    text-align: center;
}

/* 常见问题区域 */
.faq-section {
    padding: 60px 0;
    background: #f8fafc;
}

.faq-grid {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 20px;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.faq-question {
    padding: 20px 25px;
    background: #fff;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.faq-question:hover {
    background: #f1f5f9;
}

.faq-question h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--dark);
    margin: 0;
}

.faq-question i {
    color: var(--secondary);
    transition: all 0.3s ease;
}

.faq-answer {
    padding: 0 25px;
    max-height: 0;
    overflow: hidden;
    background: #fff;
    transition: all 0.3s ease;
}

.faq-answer p {
    padding: 16px 0;
    color: var(--secondary);
    line-height: 1.7;
    margin: 0;
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

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

/* 响应式设计 */
@media (max-width: 992px) {
    .roi-container {
        flex-direction: column;
    }

    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 768px) {
    .platforms-grid {
        grid-template-columns: 1fr;
    }

    .platform-stats {
        flex-direction: column;
        gap: 15px;
    }

    .stat {
        display: flex;
        justify-content: space-between;
        align-items: center;
    }
}