/* 重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    line-height: 1.6;
    color: #1d1d1f;
    background-color: #ffffff;
    overflow-x: hidden;
}

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

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo {
    font-size: 24px;
    font-weight: 600;
    color: #1d1d1f;
    text-decoration: none;
    transition: color 0.3s ease;
}

.logo:hover {
    color: #0071e3;
}

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

.nav-menu a {
    color: #1d1d1f;
    text-decoration: none;
    font-size: 15px;
    font-weight: 400;
    transition: color 0.3s ease;
    position: relative;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: #0071e3;
}

.nav-menu a.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    right: 0;
    height: 2px;
    background-color: #0071e3;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 2px;
    background-color: #1d1d1f;
    transition: all 0.3s ease;
}

/* 主要内容区域 */
main {
    margin-top: 70px;
}

/* Hero区域 */
.hero {
    min-height: 50vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #ffffff;
    position: relative;
    overflow: hidden;
    padding: 80px 0;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        url('data:image/svg+xml,<svg width="200" height="200" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="40" height="40" patternUnits="userSpaceOnUse"><path d="M 40 0 L 0 0 0 40" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100%" height="100%" fill="url(%23grid)"/></svg>');
    opacity: 0.5;
    animation: heroPattern 20s linear infinite;
}

.hero::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: heroFloat 15s ease-in-out infinite;
}

@keyframes heroPattern {
    0% { transform: translate(0, 0); }
    100% { transform: translate(40px, 40px); }
}

@keyframes heroFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(30px, -30px) scale(1.1); }
}

.hero-icon {
    font-size: 80px;
    margin-bottom: 30px;
    display: inline-block;
    animation: heroIconFloat 3s ease-in-out infinite;
    filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.2));
}

@keyframes heroIconFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.hero-decoration {
    position: absolute;
    width: 100px;
    height: 100px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    animation: heroDeco 8s linear infinite;
}

.hero-decoration:nth-child(1) {
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.hero-decoration:nth-child(2) {
    top: 20%;
    right: 15%;
    animation-delay: 2s;
}

.hero-decoration:nth-child(3) {
    bottom: 15%;
    left: 20%;
    animation-delay: 4s;
}

.hero-decoration:nth-child(4) {
    bottom: 10%;
    right: 10%;
    animation-delay: 6s;
}

@keyframes heroDeco {
    0% { transform: rotate(0deg) scale(1); opacity: 0.3; }
    50% { transform: rotate(180deg) scale(1.2); opacity: 0.5; }
    100% { transform: rotate(360deg) scale(1); opacity: 0.3; }
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    padding: 40px 20px;
}

.hero h1 {
    font-size: 56px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.1;
    animation: fadeInUp 0.8s ease;
}

.hero p {
    font-size: 24px;
    margin-bottom: 30px;
    opacity: 0.9;
    animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease 0.4s both;
}

.btn {
    display: inline-block;
    padding: 14px 32px;
    font-size: 17px;
    font-weight: 500;
    text-decoration: none;
    border-radius: 50px;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background-color: #0071e3;
    color: #ffffff;
}

.btn-primary:hover {
    background-color: #0077ed;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 113, 227, 0.3);
}

.btn-secondary {
    background-color: rgba(255, 255, 255, 0.2);
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

/* 特性区域 */
.features {
    padding: 100px 0;
    background-color: #f5f5f7;
}

.section-title {
    text-align: center;
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
    color: #1d1d1f;
}

.section-subtitle {
    text-align: center;
    font-size: 21px;
    color: #86868b;
    margin-bottom: 60px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.feature-card {
    background-color: #ffffff;
    padding: 40px;
    border-radius: 20px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 15px;
    color: #1d1d1f;
}

.feature-card p {
    font-size: 17px;
    color: #86868b;
    line-height: 1.6;
}

/* 内容区域 */
.content-section {
    padding: 100px 0;
}

.content-section:nth-child(even) {
    background-color: #f5f5f7;
}

.content-wrapper {
    max-width: 900px;
    margin: 0 auto;
}

.content-wrapper h2 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 30px;
    color: #1d1d1f;
    text-align: center;
}

.content-wrapper h3 {
    font-size: 32px;
    font-weight: 600;
    margin: 40px 0 20px;
    color: #1d1d1f;
}

.content-wrapper p {
    font-size: 19px;
    color: #1d1d1f;
    margin-bottom: 20px;
    line-height: 1.8;
}

.content-wrapper ul {
    list-style: none;
    padding-left: 0;
    margin: 30px 0;
}

.content-wrapper ul li {
    font-size: 19px;
    color: #1d1d1f;
    margin-bottom: 15px;
    padding-left: 30px;
    position: relative;
    line-height: 1.8;
}

.content-wrapper ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #0071e3;
    font-weight: bold;
    font-size: 20px;
}

/* 内链区域 */
.internal-links {
    padding: 60px 0;
    background-color: #f5f5f7;
    margin-top: 60px;
}

.internal-links h3 {
    text-align: center;
    font-size: 32px;
    margin-bottom: 40px;
    color: #1d1d1f;
}

.links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.link-card {
    background-color: #ffffff;
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
    text-decoration: none;
    color: #1d1d1f;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
}

.link-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
    color: #0071e3;
}

.link-card h4 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 10px;
}

.link-card p {
    font-size: 15px;
    color: #86868b;
}

/* 联系表单 */
.contact-form {
    max-width: 600px;
    margin: 0 auto;
    background-color: #ffffff;
    padding: 50px;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    font-size: 17px;
    font-weight: 500;
    margin-bottom: 8px;
    color: #1d1d1f;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 14px 18px;
    font-size: 17px;
    border: 1px solid #d2d2d7;
    border-radius: 10px;
    font-family: inherit;
    transition: all 0.3s ease;
    background-color: #ffffff;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: #0071e3;
    box-shadow: 0 0 0 4px rgba(0, 113, 227, 0.1);
}

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

/* 页脚 */
.footer {
    background-color: #1d1d1f;
    color: #f5f5f7;
    padding: 60px 0 30px;
    margin-top: 100px;
}

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

.footer-section h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 20px;
    color: #ffffff;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 12px;
}

.footer-section a {
    color: #86868b;
    text-decoration: none;
    font-size: 15px;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: #ffffff;
}

.keywords-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.keywords-list li {
    margin-bottom: 0;
}

.keywords-list a {
    background-color: rgba(255, 255, 255, 0.1);
    padding: 6px 12px;
    border-radius: 6px;
    display: inline-block;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: #86868b;
    font-size: 14px;
    margin-bottom: 10px;
}

.keywords-text {
    font-size: 16px;
    color: #ffffff;
    font-weight: 500;
}

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

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        flex-direction: column;
        background-color: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        padding: 20px;
        gap: 20px;
        transition: left 0.3s ease;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    }

    .nav-menu.active {
        left: 0;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .hero h1 {
        font-size: 36px;
    }

    .hero p {
        font-size: 18px;
    }

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

    .content-wrapper h2 {
        font-size: 32px;
    }

    .content-wrapper h3 {
        font-size: 26px;
    }

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

    .contact-form {
        padding: 30px 20px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

/* 图文内容区域 */
.image-text-section {
    padding: 80px 0;
    background-color: #ffffff;
}

.image-text-section:nth-child(even) {
    background-color: #f5f5f7;
}

.image-text-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.image-text-wrapper.reverse {
    direction: rtl;
}

.image-text-wrapper.reverse > * {
    direction: ltr;
}

.image-placeholder {
    width: 100%;
    height: 400px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 20px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 48px;
}

.image-placeholder::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.2) 0%, transparent 50%),
        radial-gradient(circle at 70% 70%, rgba(255, 255, 255, 0.2) 0%, transparent 50%);
}

.image-placeholder-icon {
    position: relative;
    z-index: 1;
    font-size: 120px;
    opacity: 0.8;
}

.image-text-content h2 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 25px;
    color: #1d1d1f;
}

.image-text-content h3 {
    font-size: 28px;
    font-weight: 600;
    margin: 30px 0 15px;
    color: #1d1d1f;
}

.image-text-content p {
    font-size: 19px;
    color: #1d1d1f;
    margin-bottom: 20px;
    line-height: 1.8;
}

/* 数据展示卡片 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin: 60px 0;
}

.stat-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 40px;
    border-radius: 20px;
    text-align: center;
    color: #ffffff;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.3);
    transition: transform 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-10px);
}

.stat-card:nth-child(2) {
    background: linear-gradient(135deg, #34c759 0%, #248a3d 100%);
    box-shadow: 0 10px 30px rgba(52, 199, 89, 0.3);
}

.stat-card:nth-child(3) {
    background: linear-gradient(135deg, #ff9500 0%, #cc7700 100%);
    box-shadow: 0 10px 30px rgba(255, 149, 0, 0.3);
}

.stat-card:nth-child(4) {
    background: linear-gradient(135deg, #af52de 0%, #8e44ad 100%);
    box-shadow: 0 10px 30px rgba(175, 82, 222, 0.3);
}

.stat-number {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 10px;
    display: block;
}

.stat-label {
    font-size: 18px;
    opacity: 0.9;
}

/* 特性列表展示 */
.feature-list-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin: 40px 0;
}

.feature-list-item {
    background-color: #ffffff;
    padding: 30px;
    border-radius: 15px;
    border-left: 4px solid #0071e3;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.feature-list-item:hover {
    transform: translateX(10px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
}

.feature-list-item h4 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 15px;
    color: #1d1d1f;
    display: flex;
    align-items: center;
    gap: 10px;
}

.feature-list-item-icon {
    font-size: 28px;
}

.feature-list-item p {
    font-size: 17px;
    color: #86868b;
    line-height: 1.7;
}

/* 流程图 */
.process-steps {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin: 60px 0;
    position: relative;
    flex-wrap: wrap;
    gap: 20px;
}

.process-steps::before {
    content: '';
    position: absolute;
    top: 60px;
    left: 10%;
    right: 10%;
    height: 2px;
    background: linear-gradient(to right, #0071e3, #34c759, #ff9500, #af52de);
    z-index: 0;
}

.process-step {
    flex: 1;
    min-width: 200px;
    text-align: center;
    position: relative;
    z-index: 1;
}

.process-step-number {
    width: 120px;
    height: 120px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, #0071e3 0%, #0051a2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    font-weight: 700;
    color: #ffffff;
    box-shadow: 0 10px 30px rgba(0, 113, 227, 0.3);
    position: relative;
}

.process-step:nth-child(2) .process-step-number {
    background: linear-gradient(135deg, #34c759 0%, #248a3d 100%);
    box-shadow: 0 10px 30px rgba(52, 199, 89, 0.3);
}

.process-step:nth-child(3) .process-step-number {
    background: linear-gradient(135deg, #ff9500 0%, #cc7700 100%);
    box-shadow: 0 10px 30px rgba(255, 149, 0, 0.3);
}

.process-step:nth-child(4) .process-step-number {
    background: linear-gradient(135deg, #af52de 0%, #8e44ad 100%);
    box-shadow: 0 10px 30px rgba(175, 82, 222, 0.3);
}

.process-step-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 10px;
    color: #1d1d1f;
}

.process-step-desc {
    font-size: 16px;
    color: #86868b;
    line-height: 1.6;
}

/* 图片网格 */
.image-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin: 40px 0;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: 15px;
    aspect-ratio: 4/3;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 36px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

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

.gallery-item:nth-child(2) {
    background: linear-gradient(135deg, #34c759 0%, #248a3d 100%);
}

.gallery-item:nth-child(3) {
    background: linear-gradient(135deg, #ff9500 0%, #cc7700 100%);
}

.gallery-item:nth-child(4) {
    background: linear-gradient(135deg, #af52de 0%, #8e44ad 100%);
}

@media (max-width: 768px) {
    .image-text-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .image-placeholder {
        height: 300px;
    }
    
    .process-steps::before {
        display: none;
    }
    
    .process-step {
        margin-bottom: 40px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* 图表样式 */
.chart-container {
    background: #ffffff;
    border-radius: 15px;
    padding: 40px;
    margin: 40px 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.chart-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 30px;
    color: #1d1d1f;
    text-align: center;
}

.chart-wrapper {
    position: relative;
    height: 300px;
    margin: 20px 0;
}

.bar-chart {
    display: flex;
    align-items: flex-end;
    justify-content: space-around;
    height: 100%;
    gap: 20px;
}

.bar-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.bar {
    width: 100%;
    background: linear-gradient(180deg, #0071e3 0%, #0051a2 100%);
    border-radius: 8px 8px 0 0;
    position: relative;
    transition: transform 0.3s ease;
    min-height: 20px;
}

.bar:hover {
    transform: scaleY(1.05);
}

.bar-label {
    font-size: 14px;
    color: #86868b;
    font-weight: 500;
}

.bar-value {
    position: absolute;
    top: -25px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 16px;
    font-weight: 600;
    color: #1d1d1f;
    white-space: nowrap;
}

.pie-chart {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
}

.pie-chart-wrapper {
    position: relative;
    width: 250px;
    height: 250px;
}

.line-chart {
    height: 100%;
    display: flex;
    align-items: flex-end;
    justify-content: space-around;
    gap: 15px;
}

.line-point {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.line-dot {
    width: 12px;
    height: 12px;
    background: #0071e3;
    border-radius: 50%;
    border: 3px solid #ffffff;
    box-shadow: 0 2px 8px rgba(0, 113, 227, 0.3);
}

.line-bar {
    width: 8px;
    background: linear-gradient(180deg, #0071e3 0%, rgba(0, 113, 227, 0.3) 100%);
    border-radius: 4px;
    transition: transform 0.3s ease;
}

.line-bar:hover {
    transform: scaleY(1.1);
}

/* 新闻模块 */
.news-section {
    background: #f5f5f7;
    padding: 80px 0;
    margin: 60px 0;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.news-item {
    background: #ffffff;
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.news-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
}

.news-date {
    font-size: 14px;
    color: #86868b;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.news-title {
    font-size: 20px;
    font-weight: 600;
    color: #1d1d1f;
    margin-bottom: 15px;
    line-height: 1.4;
}

.news-excerpt {
    font-size: 16px;
    color: #86868b;
    line-height: 1.7;
    margin-bottom: 20px;
}

.news-tag {
    display: inline-block;
    padding: 6px 12px;
    background: #f5f5f7;
    border-radius: 20px;
    font-size: 13px;
    color: #0071e3;
    font-weight: 500;
}

/* 统计数据大卡片 */
.stats-hero {
    background: linear-gradient(135deg, #0071e3 0%, #0051a2 100%);
    border-radius: 20px;
    padding: 60px 40px;
    margin: 60px 0;
    color: #ffffff;
    text-align: center;
}

.stats-hero h2 {
    font-size: 32px;
    margin-bottom: 50px;
    color: #ffffff;
}

.stats-hero-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
}

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

.stats-hero-number {
    font-size: 48px;
    font-weight: 700;
    line-height: 1;
}

.stats-hero-label {
    font-size: 18px;
    opacity: 0.9;
}

.stats-hero-icon {
    font-size: 40px;
    opacity: 0.8;
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 28px;
    }

    .hero p {
        font-size: 16px;
    }
    
    .hero-icon {
        font-size: 60px;
    }

    .btn {
        padding: 12px 24px;
        font-size: 15px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .image-text-content h2 {
        font-size: 32px;
    }
    
    .stat-number {
        font-size: 36px;
    }
    
    .chart-container {
        padding: 20px;
    }
    
    .chart-wrapper {
        height: 200px;
    }
    
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-hero {
        padding: 40px 20px;
    }
    
    .stats-hero-number {
        font-size: 36px;
    }
}

/* 为什么选择我们 - 上下布局 */
.why-choose-section {
    padding: 80px 0;
    background-color: #f5f5f7;
}

.why-choose-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.why-choose-content .section-title {
    text-align: center;
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 20px;
    color: #1d1d1f;
}

.why-choose-content .section-subtitle {
    text-align: center;
    font-size: 19px;
    color: #86868b;
    margin-bottom: 50px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* 用户评价模块 */
.reviews-section {
    padding: 80px 0;
    background-color: #ffffff;
}

.rating-summary {
    margin: 60px 0;
    background: linear-gradient(135deg, #f5f5f7 0%, #ffffff 100%);
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.rating-overview {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 60px;
    align-items: center;
}

.rating-score {
    text-align: center;
}

.score-number {
    font-size: 64px;
    font-weight: 700;
    color: #1d1d1f;
    display: block;
    margin-bottom: 15px;
}

.stars-display {
    margin-bottom: 15px;
}

.stars-display .star {
    font-size: 28px;
    color: #ff9500;
    margin: 0 2px;
}

.rating-count {
    font-size: 16px;
    color: #86868b;
    margin: 0;
}

.rating-breakdown {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.rating-bar-item {
    display: grid;
    grid-template-columns: 50px 1fr 60px;
    gap: 15px;
    align-items: center;
}

.rating-bar {
    height: 8px;
    background-color: #e5e5e7;
    border-radius: 4px;
    overflow: hidden;
}

.rating-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, #ff9500 0%, #ffad33 100%);
    border-radius: 4px;
    transition: width 0.5s ease;
}

.rating-bar-item span:first-child {
    font-size: 14px;
    color: #86868b;
    text-align: right;
}

.rating-bar-item span:last-child {
    font-size: 14px;
    color: #1d1d1f;
    font-weight: 600;
}

/* 评价列表 */
.reviews-list {
    display: flex;
    flex-direction: column;
    gap: 25px;
    margin: 60px 0;
}

.review-item {
    background-color: #ffffff;
    border: 1px solid #e5e5e7;
    border-radius: 15px;
    padding: 30px;
    transition: all 0.3s ease;
    animation: fadeInUp 0.5s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.review-item:hover {
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    transform: translateY(-5px);
}

.review-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 15px;
}

.reviewer-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

.reviewer-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 600;
}

.reviewer-name {
    font-size: 18px;
    font-weight: 600;
    color: #1d1d1f;
    margin-bottom: 5px;
}

.review-date {
    font-size: 14px;
    color: #86868b;
}

.review-rating {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 8px;
}

.review-stars {
    font-size: 20px;
    color: #ff9500;
    letter-spacing: 2px;
}

.review-service-tag {
    display: inline-block;
    padding: 4px 12px;
    background-color: #f5f5f7;
    border-radius: 12px;
    font-size: 12px;
    color: #86868b;
}

.review-content {
    font-size: 16px;
    color: #1d1d1f;
    line-height: 1.8;
}

/* 评价表单 */
.review-form-container {
    margin-top: 60px;
    background: linear-gradient(135deg, #f5f5f7 0%, #ffffff 100%);
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.review-form-container h3 {
    font-size: 28px;
    font-weight: 600;
    color: #1d1d1f;
    margin-bottom: 30px;
    text-align: center;
}

.review-form {
    max-width: 700px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    font-size: 16px;
    font-weight: 600;
    color: #1d1d1f;
    margin-bottom: 10px;
}

.form-group input[type="text"],
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid #d2d2d7;
    border-radius: 10px;
    font-size: 16px;
    font-family: inherit;
    color: #1d1d1f;
    background-color: #ffffff;
    transition: all 0.3s ease;
}

.form-group input[type="text"]:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #0071e3;
    box-shadow: 0 0 0 4px rgba(0, 113, 227, 0.1);
}

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

.star-rating-input {
    display: flex;
    gap: 8px;
    margin-top: 10px;
}

.star-input {
    font-size: 32px;
    color: #d2d2d7;
    cursor: pointer;
    transition: all 0.2s ease;
    user-select: none;
}

.star-input:hover {
    transform: scale(1.1);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .rating-overview {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .rating-score {
        text-align: center;
    }
    
    .score-number {
        font-size: 48px;
    }
    
    .rating-bar-item {
        grid-template-columns: 40px 1fr 50px;
    }
    
    .review-header {
        flex-direction: column;
    }
    
    .review-rating {
        align-items: flex-start;
        flex-direction: row;
        gap: 15px;
    }
    
    .why-choose-content .section-title {
        font-size: 32px;
    }
    
    .review-form-container {
        padding: 25px 20px;
    }
}