/* 基础重置与全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: #0F0F1A;
    color: #E0E0E0;
    transition: background 0.3s, color 0.3s;
    overflow-x: hidden;
}
body.light-mode {
    background: #F8F9FA;
    color: #1A1A2E;
}
a {
    color: #FF6B35;
    text-decoration: none;
}
a:hover {
    color: #FF8C5A;
}
img {
    max-width: 100%;
    height: auto;
    display: block;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}
.glass {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
}
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 30px;
    border: none;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    background: linear-gradient(135deg, #FF6B35, #FF8C5A);
    color: #fff;
    box-shadow: 0 4px 15px rgba(255, 107, 53, 0.3);
}
.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255, 107, 53, 0.5);
}
.btn-outline {
    background: transparent;
    border: 2px solid #FF6B35;
    color: #FF6B35;
    box-shadow: none;
}
.btn-outline:hover {
    background: #FF6B35;
    color: #fff;
}
.section {
    padding: 80px 0;
}
.section-title {
    font-size: 2.2rem;
    margin-bottom: 12px;
    background: linear-gradient(135deg, #FF6B35, #FFD166);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.section-subtitle {
    font-size: 1.1rem;
    color: #999;
    margin-bottom: 40px;
}
.grid {
    display: grid;
    gap: 30px;
}
.flex {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    align-items: center;
}
.text-center {
    text-align: center;
}
.card {
    background: rgba(255, 255, 255, 0.04);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    padding: 30px;
    transition: all 0.4s ease;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}
.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(255, 107, 53, 0.2);
    border-color: #FF6B35;
}
.card h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: #FFD166;
}
.card p {
    color: #B0B0B0;
    line-height: 1.7;
}
.light-mode .card {
    background: rgba(255, 255, 255, 0.7);
    border-color: rgba(0, 0, 0, 0.08);
}
.light-mode .card p {
    color: #555;
}
.light-mode .card h3 {
    color: #1A1A2E;
}
.light-mode .section-subtitle {
    color: #777;
}
.light-mode .glass {
    background: rgba(255, 255, 255, 0.7);
    border-color: rgba(0, 0, 0, 0.08);
}

/* 头部导航 */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(15, 15, 26, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding: 10px 0;
    transition: background 0.3s;
}
.light-mode header {
    background: rgba(248, 249, 250, 0.9);
    border-color: rgba(0, 0, 0, 0.05);
}
header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo {
    font-size: 1.8rem;
    font-weight: 800;
    background: linear-gradient(135deg, #FF6B35, #FFD166);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.nav-links {
    display: flex;
    gap: 25px;
    list-style: none;
}
.nav-links a {
    color: #E0E0E0;
    font-weight: 500;
    font-size: 0.95rem;
    padding: 6px 0;
    position: relative;
    transition: color 0.3s;
}
.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: #FF6B35;
    transition: width 0.3s;
}
.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}
.nav-links a:hover,
.nav-links a.active {
    color: #FF6B35;
}
.light-mode .nav-links a {
    color: #333;
}
.light-mode .nav-links a:hover,
.light-mode .nav-links a.active {
    color: #FF6B35;
}
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
    background: none;
    border: none;
}
.hamburger span {
    width: 28px;
    height: 3px;
    background: #FF6B35;
    border-radius: 3px;
    transition: all 0.3s;
}
.theme-toggle {
    background: none;
    border: 2px solid #FF6B35;
    color: #FF6B35;
    padding: 8px 16px;
    border-radius: 30px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s;
    font-size: 0.9rem;
}
.theme-toggle:hover {
    background: #FF6B35;
    color: #fff;
}

/* Hero 区域 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding-top: 80px;
}
.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 50%, rgba(255, 107, 53, 0.15), transparent 60%),
                radial-gradient(circle at 80% 30%, rgba(255, 209, 102, 0.1), transparent 50%);
    z-index: 0;
}
.hero .container {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}
.hero-text h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #fff 30%, #FF6B35 70%, #FFD166);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.light-mode .hero-text h1 {
    background: linear-gradient(135deg, #1A1A2E 30%, #FF6B35 70%, #FFD166);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-text p {
    font-size: 1.2rem;
    color: #B0B0B0;
    margin-bottom: 30px;
    line-height: 1.8;
}
.light-mode .hero-text p {
    color: #555;
}
.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}
.hero-image {
    position: relative;
    display: flex;
    justify-content: center;
}
.hero-image svg {
    width: 100%;
    max-width: 500px;
    height: auto;
    filter: drop-shadow(0 20px 60px rgba(255, 107, 53, 0.3));
}

/* 轮播 */
.banner-carousel {
    overflow: hidden;
    position: relative;
    width: 100%;
    border-radius: 20px;
    margin-top: 40px;
}
.banner-track {
    display: flex;
    transition: transform 0.6s ease;
}
.banner-slide {
    min-width: 100%;
    padding: 60px 40px;
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.2), rgba(255, 209, 102, 0.1));
    border-radius: 20px;
    text-align: center;
}
.banner-slide h2 {
    font-size: 2rem;
    margin-bottom: 12px;
    color: #FFD166;
}
.banner-slide p {
    font-size: 1.1rem;
    color: #ccc;
    max-width: 600px;
    margin: 0 auto;
}
.light-mode .banner-slide p {
    color: #555;
}
.banner-dots {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 20px;
}
.banner-dots button {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid #FF6B35;
    background: transparent;
    cursor: pointer;
    transition: all 0.3s;
}
.banner-dots button.active {
    background: #FF6B35;
    width: 30px;
    border-radius: 6px;
}

/* About 区域 */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}
.about-text p {
    line-height: 1.9;
    margin-bottom: 16px;
    color: #B0B0B0;
}
.light-mode .about-text p {
    color: #555;
}
.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.stat-item {
    text-align: center;
    padding: 20px;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.06);
}
.stat-item .number {
    font-size: 2.5rem;
    font-weight: 800;
    color: #FF6B35;
}
.stat-item .label {
    color: #999;
    font-size: 0.95rem;
    margin-top: 6px;
}
.light-mode .stat-item {
    background: rgba(0, 0, 0, 0.02);
}

/* 团队网格 */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}
.team-card {
    text-align: center;
    padding: 30px 20px;
}
.team-card .avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    margin: 0 auto 16px;
    background: linear-gradient(135deg, #FF6B35, #FFD166);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: #fff;
    font-weight: 700;
}
.team-card h4 {
    color: #FFD166;
    margin-bottom: 4px;
}
.team-card .role {
    color: #999;
    font-size: 0.9rem;
}
.light-mode .team-card h4 {
    color: #1A1A2E;
}

/* 产品网格 */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}
.product-card {
    padding: 30px;
}
.product-card .icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    background: linear-gradient(135deg, #FF6B35, rgba(255, 107, 53, 0.3));
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    font-size: 1.8rem;
}
.product-card h3 {
    color: #FFD166;
    margin-bottom: 8px;
}
.light-mode .product-card h3 {
    color: #1A1A2E;
}
.product-card p {
    color: #B0B0B0;
    line-height: 1.7;
}
.light-mode .product-card p {
    color: #555;
}

/* 案例网格 */
.case-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}
.case-card {
    padding: 25px;
    border-left: 4px solid #FF6B35;
}
.case-card h4 {
    color: #FFD166;
    margin-bottom: 8px;
}
.light-mode .case-card h4 {
    color: #1A1A2E;
}

/* 评价网格 */
.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}
.testimonial-card {
    padding: 30px;
    position: relative;
}
.testimonial-card::before {
    content: '"';
    font-size: 4rem;
    position: absolute;
    top: 10px;
    left: 20px;
    color: #FF6B35;
    opacity: 0.3;
    font-family: serif;
}
.testimonial-card p {
    font-style: italic;
    line-height: 1.8;
    color: #CCC;
    margin-bottom: 16px;
}
.light-mode .testimonial-card p {
    color: #555;
}
.testimonial-card .author {
    font-weight: 600;
    color: #FFD166;
}
.light-mode .testimonial-card .author {
    color: #1A1A2E;
}

/* 合作伙伴 */
.partner-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 40px;
    padding: 20px;
}
.partner-item {
    width: 120px;
    height: 60px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    color: #999;
    border: 1px solid rgba(255, 255, 255, 0.06);
    transition: all 0.3s;
}
.partner-item:hover {
    border-color: #FF6B35;
    color: #FF6B35;
}
.light-mode .partner-item {
    background: rgba(0, 0, 0, 0.02);
    border-color: rgba(0, 0, 0, 0.06);
    color: #777;
}

/* 新闻网格 */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}
.news-card {
    padding: 25px;
}
.news-card .date {
    color: #999;
    font-size: 0.85rem;
    margin-bottom: 8px;
}
.news-card h4 {
    color: #FFD166;
    margin-bottom: 8px;
}
.light-mode .news-card h4 {
    color: #1A1A2E;
}
.news-card p {
    color: #B0B0B0;
    line-height: 1.7;
}
.light-mode .news-card p {
    color: #555;
}

/* FAQ */
.faq-item {
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    padding: 20px 0;
    cursor: pointer;
}
.faq-item:last-child {
    border: none;
}
.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    font-size: 1.1rem;
    color: #E0E0E0;
    transition: color 0.3s;
}
.faq-question:hover {
    color: #FF6B35;
}
.faq-question .icon {
    font-size: 1.5rem;
    transition: transform 0.3s;
}
.faq-item.open .faq-question .icon {
    transform: rotate(45deg);
}
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s;
    padding-top: 0;
    color: #B0B0B0;
    line-height: 1.7;
}
.faq-item.open .faq-answer {
    max-height: 300px;
    padding-top: 16px;
}
.light-mode .faq-question {
    color: #333;
}
.light-mode .faq-answer {
    color: #555;
}
.light-mode .faq-item {
    border-color: rgba(0, 0, 0, 0.06);
}

/* 联系我们 */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}
.contact-info p {
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
    color: #B0B0B0;
}
.contact-info strong {
    color: #FFD166;
}
.light-mode .contact-info p {
    color: #555;
}
.light-mode .contact-info strong {
    color: #1A1A2E;
}
.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 14px 18px;
    margin-bottom: 16px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.04);
    color: #E0E0E0;
    font-size: 1rem;
    transition: all 0.3s;
    outline: none;
}
.contact-form input:focus,
.contact-form textarea:focus {
    border-color: #FF6B35;
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.2);
}
.contact-form textarea {
    min-height: 120px;
    resize: vertical;
}
.light-mode .contact-form input,
.light-mode .contact-form textarea {
    background: rgba(0, 0, 0, 0.02);
    border-color: rgba(0, 0, 0, 0.1);
    color: #333;
}

/* 页脚 */
.footer {
    background: rgba(255, 255, 255, 0.02);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding: 60px 0 30px;
    margin-top: 40px;
}
.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}
.footer-col h4 {
    color: #FFD166;
    margin-bottom: 16px;
    font-size: 1.1rem;
}
.light-mode .footer-col h4 {
    color: #1A1A2E;
}
.footer-col ul {
    list-style: none;
}
.footer-col li {
    margin-bottom: 10px;
}
.footer-col a {
    color: #999;
    font-size: 0.9rem;
    transition: color 0.3s;
}
.footer-col a:hover {
    color: #FF6B35;
}
.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    color: #999;
    font-size: 0.85rem;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
}
.footer-bottom a {
    color: #999;
}
.footer-bottom a:hover {
    color: #FF6B35;
}
.light-mode .footer-bottom {
    border-color: rgba(0, 0, 0, 0.05);
}

/* 回到顶部按钮 */
.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: #FF6B35;
    color: #fff;
    border: none;
    cursor: pointer;
    font-size: 1.5rem;
    box-shadow: 0 4px 20px rgba(255, 107, 53, 0.4);
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.4s;
    z-index: 999;
}
.scroll-top.visible {
    opacity: 1;
    transform: translateY(0);
}
.scroll-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(255, 107, 53, 0.6);
}

/* 搜索模态框 */
.search-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
}
.search-modal.open {
    display: flex;
}
.search-modal .search-box {
    width: 90%;
    max-width: 600px;
    background: #1A1A2E;
    border-radius: 20px;
    padding: 30px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}
.light-mode .search-modal .search-box {
    background: #fff;
    border-color: rgba(0, 0, 0, 0.1);
}
.search-modal input {
    width: 100%;
    padding: 16px 20px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.04);
    color: #E0E0E0;
    font-size: 1.1rem;
    outline: none;
}
.search-modal input:focus {
    border-color: #FF6B35;
}
.light-mode .search-modal input {
    background: rgba(0, 0, 0, 0.02);
    border-color: rgba(0, 0, 0, 0.1);
    color: #333;
}
.search-modal .close-btn {
    position: absolute;
    top: 20px;
    right: 30px;
    font-size: 2rem;
    color: #FF6B35;
    cursor: pointer;
    background: none;
    border: none;
}

/* 面包屑 */
.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 20px 0;
    font-size: 0.9rem;
    color: #999;
}
.breadcrumb a {
    color: #FF6B35;
}
.breadcrumb span {
    color: #666;
}
.light-mode .breadcrumb span {
    color: #999;
}

/* HowTo 步骤 */
.howto-steps {
    display: grid;
    gap: 20px;
    max-width: 700px;
    margin: 0 auto;
}
.howto-step {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    padding: 20px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}
.howto-step .step-num {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: #FF6B35;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}
.howto-step .step-text h4 {
    color: #FFD166;
    margin-bottom: 4px;
}
.light-mode .howto-step .step-text h4 {
    color: #1A1A2E;
}
.howto-step .step-text p {
    color: #B0B0B0;
    line-height: 1.6;
}
.light-mode .howto-step .step-text p {
    color: #555;
}
.light-mode .howto-step {
    background: rgba(0, 0, 0, 0.02);
    border-color: rgba(0, 0, 0, 0.05);
}

/* 解决方案网格 */
.solution-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}
.solution-card {
    padding: 30px;
    text-align: center;
}
.solution-card .icon {
    font-size: 2.5rem;
    margin-bottom: 12px;
}
.solution-card h3 {
    color: #FFD166;
    margin-bottom: 8px;
}
.light-mode .solution-card h3 {
    color: #1A1A2E;
}
.solution-card p {
    color: #B0B0B0;
    line-height: 1.7;
}
.light-mode .solution-card p {
    color: #555;
}

/* 行业网格 */
.industry-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}
.industry-item {
    text-align: center;
    padding: 20px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all 0.3s;
}
.industry-item:hover {
    border-color: #FF6B35;
    transform: translateY(-4px);
}
.industry-item .icon {
    font-size: 2rem;
    margin-bottom: 8px;
}
.industry-item span {
    color: #B0B0B0;
    font-size: 0.95rem;
}
.light-mode .industry-item {
    background: rgba(0, 0, 0, 0.02);
    border-color: rgba(0, 0, 0, 0.05);
}
.light-mode .industry-item span {
    color: #555;
}

/* 服务网格 */
.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}
.service-card {
    padding: 30px;
    text-align: center;
}
.service-card .icon {
    font-size: 2.5rem;
    margin-bottom: 12px;
}
.service-card h3 {
    color: #FFD166;
    margin-bottom: 8px;
}
.light-mode .service-card h3 {
    color: #1A1A2E;
}
.service-card p {
    color: #B0B0B0;
    line-height: 1.7;
}
.light-mode .service-card p {
    color: #555;
}

/* 优势网格 */
.advantage-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}
.advantage-card {
    padding: 30px;
    text-align: center;
}
.advantage-card .icon {
    font-size: 2.5rem;
    margin-bottom: 12px;
}
.advantage-card h3 {
    color: #FFD166;
    margin-bottom: 8px;
}
.light-mode .advantage-card h3 {
    color: #1A1A2E;
}
.advantage-card p {
    color: #B0B0B0;
    line-height: 1.7;
}
.light-mode .advantage-card p {
    color: #555;
}

/* 价值网格 */
.value-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}
.value-card {
    padding: 30px;
    text-align: center;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}
.value-card .icon {
    font-size: 2.5rem;
    margin-bottom: 12px;
}
.value-card h4 {
    color: #FFD166;
    margin-bottom: 8px;
}
.light-mode .value-card h4 {
    color: #1A1A2E;
}
.value-card p {
    color: #B0B0B0;
    line-height: 1.6;
}
.light-mode .value-card p {
    color: #555;
}
.light-mode .value-card {
    background: rgba(0, 0, 0, 0.02);
    border-color: rgba(0, 0, 0, 0.05);
}

/* 文化网格 */
.culture-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}
.culture-card {
    padding: 30px;
    text-align: center;
}
.culture-card .icon {
    font-size: 2.5rem;
    margin-bottom: 12px;
}
.culture-card h4 {
    color: #FFD166;
    margin-bottom: 8px;
}
.light-mode .culture-card h4 {
    color: #1A1A2E;
}
.culture-card p {
    color: #B0B0B0;
    line-height: 1.6;
}
.light-mode .culture-card p {
    color: #555;
}

/* EEAT 区域 */
.eeat-section {
    background: rgba(255, 255, 255, 0.02);
    border-radius: 16px;
    padding: 40px;
    margin-top: 40px;
}
.eeat-section h3 {
    color: #FFD166;
    margin-bottom: 16px;
}
.light-mode .eeat-section h3 {
    color: #1A1A2E;
}
.eeat-section p {
    color: #B0B0B0;
    line-height: 1.8;
    margin-bottom: 12px;
}
.light-mode .eeat-section p {
    color: #555;
}
.eeat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 20px;
}
.eeat-item {
    padding: 16px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
    border-left: 3px solid #FF6B35;
}
.eeat-item strong {
    color: #FFD166;
    display: block;
    margin-bottom: 4px;
}
.light-mode .eeat-item strong {
    color: #1A1A2E;
}
.eeat-item span {
    color: #999;
    font-size: 0.9rem;
}
.light-mode .eeat-item span {
    color: #777;
}

/* 响应式布局 */
@media (max-width: 768px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .hero-text h1 {
        font-size: 2.2rem;
    }
    .hero-buttons {
        justify-content: center;
    }
    .hero-image {
        order: -1;
    }
    .hero-image svg {
        max-width: 300px;
    }
    .about-grid {
        grid-template-columns: 1fr;
    }
    .about-stats {
        grid-template-columns: 1fr 1fr;
    }
    .contact-grid {
        grid-template-columns: 1fr;
    }
    .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: rgba(15, 15, 26, 0.98);
        backdrop-filter: blur(20px);
        padding: 20px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }
    .nav-links.open {
        display: flex;
    }
    .light-mode .nav-links {
        background: rgba(248, 249, 250, 0.98);
    }
    .hamburger {
        display: flex;
    }
    .section-title {
        font-size: 1.8rem;
    }
    .hero-text h1 {
        font-size: 2rem;
    }
    .stat-item .number {
        font-size: 2rem;
    }
}

/* 系统暗色模式偏好 */
@media (prefers-color-scheme: light) {
    body {
        background: #F8F9FA;
        color: #1A1A2E;
    }
    body .card {
        background: rgba(255, 255, 255, 0.7);
    }
    body .glass {
        background: rgba(255, 255, 255, 0.7);
    }
    body .nav-links a {
        color: #333;
    }
    body .section-subtitle {
        color: #777;
    }
    body .hero-text h1 {
        background: linear-gradient(135deg, #1A1A2E 30%, #FF6B35 70%, #FFD166);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }
    body .hero-text p {
        color: #555;
    }
    body .banner-slide p {
        color: #555;
    }
    body .about-text p {
        color: #555;
    }
    body .team-card h4 {
        color: #1A1A2E;
    }
    body .product-card h3 {
        color: #1A1A2E;
    }
    body .product-card p {
        color: #555;
    }
    body .case-card h4 {
        color: #1A1A2E;
    }
    body .testimonial-card p {
        color: #555;
    }
    body .testimonial-card .author {
        color: #1A1A2E;
    }
    body .partner-item {
        background: rgba(0, 0, 0, 0.02);
        border-color: rgba(0, 0, 0, 0.06);
        color: #777;
    }
    body .news-card h4 {
        color: #1A1A2E;
    }
    body .news-card p {
        color: #555;
    }
    body .faq-question {
        color: #333;
    }
    body .faq-answer {
        color: #555;
    }
    body .faq-item {
        border-color: rgba(0, 0, 0, 0.06);
    }
    body .contact-info p {
        color: #555;
    }
    body .contact-info strong {
        color: #1A1A2E;
    }
    body .contact-form input,
    body .contact-form textarea {
        background: rgba(0, 0, 0, 0.02);
        border-color: rgba(0, 0, 0, 0.1);
        color: #333;
    }
    body .footer-col h4 {
        color: #1A1A2E;
    }
    body .footer-bottom {
        border-color: rgba(0, 0, 0, 0.05);
    }
    body .howto-step .step-text h4 {
        color: #1A1A2E;
    }
    body .howto-step .step-text p {
        color: #555;
    }
    body .howto-step {
        background: rgba(0, 0, 0, 0.02);
        border-color: rgba(0, 0, 0, 0.05);
    }
    body .solution-card h3 {
        color: #1A1A2E;
    }
    body .solution-card p {
        color: #555;
    }
    body .industry-item {
        background: rgba(0, 0, 0, 0.02);
        border-color: rgba(0, 0, 0, 0.05);
    }
    body .industry-item span {
        color: #555;
    }
    body .service-card h3 {
        color: #1A1A2E;
    }
    body .service-card p {
        color: #555;
    }
    body .advantage-card h3 {
        color: #1A1A2E;
    }
    body .advantage-card p {
        color: #555;
    }
    body .value-card {
        background: rgba(0, 0, 0, 0.02);
        border-color: rgba(0, 0, 0, 0.05);
    }
    body .value-card h4 {
        color: #1A1A2E;
    }
    body .value-card p {
        color: #555;
    }
    body .culture-card h4 {
        color: #1A1A2E;
    }
    body .culture-card p {
        color: #555;
    }
    body .eeat-section {
        background: rgba(0, 0, 0, 0.02);
    }
    body .eeat-section h3 {
        color: #1A1A2E;
    }
    body .eeat-section p {
        color: #555;
    }
    body .eeat-item strong {
        color: #1A1A2E;
    }
    body .eeat-item span {
        color: #777;
    }
    body header {
        background: rgba(248, 249, 250, 0.9);
    }
    body .stat-item {
        background: rgba(0, 0, 0, 0.02);
    }
}