/* 全局重置与基础 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.8;
    color: #2c3e50;
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e9f0 100%);
    transition: background 0.5s ease, color 0.5s ease;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

a {
    color: #2980b9;
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #e74c3c;
    text-decoration: underline;
}

h1, h2, h3, h4 {
    margin: 1.5em 0 0.8em;
    font-weight: 600;
    line-height: 1.4;
}

h1 {
    font-size: 2em;
    background: linear-gradient(135deg, #e74c3c, #c0392b);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

h2 {
    font-size: 1.6em;
    border-bottom: 3px solid #e74c3c;
    padding-bottom: 0.3em;
    position: relative;
}

h2::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, #e74c3c, #f39c12);
}

h3 {
    font-size: 1.3em;
}

p {
    margin: 1em 0;
}

ul, ol {
    margin: 1em 0;
    padding-left: 2em;
}

li {
    margin: 0.5em 0;
}

/* 导航栏 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
    transition: background 0.3s ease, box-shadow 0.3s ease;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    height: 60px;
}

.logo a {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.4em;
    font-weight: bold;
    color: #e74c3c;
    text-decoration: none;
    transition: transform 0.3s ease;
}

.logo a:hover {
    transform: scale(1.05);
    text-decoration: none;
}

.logo svg {
    transition: transform 0.5s ease;
}

.logo a:hover svg {
    transform: rotate(10deg);
}

.logo-text {
    font-size: 1.2em;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 20px;
}

.nav-menu li a {
    color: #2c3e50;
    font-size: 0.95em;
    padding: 5px 12px;
    border-radius: 20px;
    transition: all 0.3s ease;
    position: relative;
}

.nav-menu li a::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 70%;
    height: 2px;
    background: #e74c3c;
    transition: transform 0.3s ease;
}

.nav-menu li a:hover {
    background: rgba(231, 76, 60, 0.1);
    text-decoration: none;
}

.nav-menu li a:hover::before {
    transform: translateX(-50%) scaleX(1);
}

.nav-actions {
    display: flex;
    gap: 10px;
    align-items: center;
}

.nav-actions button {
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    color: #2c3e50;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.nav-actions button:hover {
    background: rgba(0, 0, 0, 0.05);
    transform: rotate(15deg);
}

.menu-toggle {
    display: none;
}

.search-box {
    display: none;
    max-width: 1200px;
    margin: 0 auto;
    padding: 10px 20px;
    background: rgba(245, 245, 245, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.search-box form {
    display: flex;
    gap: 10px;
}

.search-box input {
    flex: 1;
    padding: 10px 16px;
    border: 2px solid #e0e0e0;
    border-radius: 25px;
    font-size: 1em;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.8);
}

.search-box input:focus {
    outline: none;
    border-color: #e74c3c;
    box-shadow: 0 0 0 3px rgba(231, 76, 60, 0.2);
}

.search-box button {
    padding: 10px 25px;
    background: linear-gradient(135deg, #e74c3c, #c0392b);
    color: #fff;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
}

.search-box button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(231, 76, 60, 0.4);
}

.search-box.active {
    display: block;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 面包屑 */
.breadcrumb {
    max-width: 1200px;
    margin: 80px auto 0;
    padding: 10px 20px;
    font-size: 0.9em;
    color: #7f8c8d;
}

.breadcrumb ol {
    list-style: none;
    display: flex;
    gap: 8px;
}

.breadcrumb li::after {
    content: "›";
    margin-left: 8px;
    color: #bdc3c7;
}

.breadcrumb li:last-child::after {
    content: none;
}

.breadcrumb a {
    color: #2980b9;
    transition: color 0.3s ease;
}

.breadcrumb a:hover {
    color: #e74c3c;
}

/* Banner 轮播 */
.banner {
    position: relative;
    max-width: 1200px;
    margin: 20px auto;
    overflow: hidden;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
}

.banner-slider {
    display: flex;
    transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.banner-slide {
    min-width: 100%;
}

.banner-slide svg {
    display: block;
    transition: transform 0.5s ease;
}

.banner-slide:hover svg {
    transform: scale(1.02);
}

.banner-controls {
    position: absolute;
    top: 50%;
    width: 100%;
    display: flex;
    justify-content: space-between;
    transform: translateY(-50%);
    pointer-events: none;
    padding: 0 15px;
}

.banner-controls button {
    pointer-events: auto;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: #fff;
    border: 2px solid rgba(255, 255, 255, 0.3);
    padding: 12px 18px;
    font-size: 1.5em;
    cursor: pointer;
    border-radius: 50%;
    transition: all 0.3s ease;
    opacity: 0;
}

.banner:hover .banner-controls button {
    opacity: 1;
}

.banner-controls button:hover {
    background: rgba(255, 255, 255, 0.4);
    transform: scale(1.1);
    border-color: #fff;
}

.banner-dots {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
}

.dot {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid rgba(255, 255, 255, 0.6);
}

.dot.active {
    background: #fff;
    transform: scale(1.2);
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

.dot:hover {
    background: rgba(255, 255, 255, 0.8);
    transform: scale(1.1);
}

/* 章节通用 */
.section {
    max-width: 1200px;
    margin: 50px auto;
    padding: 0 20px;
}

/* 品牌介绍 */
.brand-section {
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
}

.brand-content {
    display: flex;
    gap: 40px;
    align-items: flex-start;
}

.brand-text {
    flex: 2;
}

.brand-image {
    flex: 1;
    transition: transform 0.5s ease;
}

.brand-image:hover {
    transform: translateY(-10px);
}

.brand-image svg {
    max-width: 100%;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

/* 产品 / 漫画分类 */
.products-section {
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 40px;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 25px;
    margin: 20px 0;
}

.product-card {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 25px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.06);
    text-align: center;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.product-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
    border-color: rgba(231, 76, 60, 0.3);
}

.product-card svg {
    margin: 0 auto 15px;
    transition: transform 0.5s ease;
}

.product-card:hover svg {
    transform: rotate(10deg) scale(1.1);
}

.product-card h3 {
    margin: 0.5em 0;
    transition: color 0.3s ease;
}

.product-card:hover h3 {
    color: #e74c3c;
}

.product-advantages {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.06);
    margin-top: 20px;
}

.product-advantages ul {
    list-style: none;
    padding: 0;
}

.product-advantages li {
    padding: 12px 0;
    border-bottom: 1px solid rgba(236, 240, 241, 0.6);
    transition: padding-left 0.3s ease;
}

.product-advantages li:hover {
    padding-left: 10px;
    color: #e74c3c;
}

.product-advantages li:last-child {
    border: none;
}

/* 解决方案 */
.solutions-section {
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 40px;
}

.solutions-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 25px;
}

.solution-item {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.06);
    transition: all 0.4s ease;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.solution-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border-color: rgba(231, 76, 60, 0.2);
}

/* 案例 */
.cases-section {
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 40px;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 25px;
}

.case-card {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 25px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.06);
    transition: all 0.4s ease;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.case-card:hover {
    transform: translateY(-8px) scale(1.01);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.1);
}

.case-card svg {
    max-width: 100%;
    border-radius: 10px;
    margin-bottom: 15px;
    transition: transform 0.5s ease;
}

.case-card:hover svg {
    transform: scale(1.05);
}

.testimonials {
    margin-top: 30px;
}

.testimonials blockquote {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 25px;
    border-left: 4px solid #e74c3c;
    border-radius: 0 15px 15px 0;
    margin: 15px 0;
    transition: all 0.3s ease;
}

.testimonials blockquote:hover {
    transform: translateX(5px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

.testimonials cite {
    display: block;
    margin-top: 10px;
    font-style: normal;
    color: #7f8c8d;
}

/* 新闻中心 */
.news-section {
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 40px;
}

.articles-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 25px;
}

.article-item {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.06);
    transition: all 0.4s ease;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.article-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.article-item time {
    color: #95a5a6;
    font-size: 0.9em;
}

.article-item h3 {
    margin: 0.5em 0;
}

.article-item h3 a {
    transition: color 0.3s ease;
}

.article-item:hover h3 a {
    color: #e74c3c;
}

.read-more {
    color: #e74c3c;
    font-weight: 600;
    display: inline-block;
    transition: all 0.3s ease;
}

.read-more:hover {
    transform: translateX(5px);
    color: #c0392b;
}

/* FAQ */
.faq-section {
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 40px;
}

.faq-list {
    display: grid;
    gap: 12px;
}

.faq-item {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
    overflow: hidden;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.faq-item:hover {
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

.faq-question {
    width: 100%;
    text-align: left;
    padding: 18px 25px;
    background: none;
    border: none;
    font-size: 1em;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #2c3e50;
    transition: all 0.3s ease;
}

.faq-question:hover {
    background: rgba(231, 76, 60, 0.05);
    color: #e74c3c;
}

.faq-question::after {
    content: "+";
    font-size: 1.3em;
    transition: transform 0.3s ease, color 0.3s ease;
    color: #e74c3c;
}

.faq-question[aria-expanded="true"]::after {
    content: "-";
    transform: rotate(180deg);
}

.faq-answer {
    display: none;
    padding: 0 25px 18px;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-5px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.faq-answer p {
    margin: 0.5em 0;
}

.faq-item.open .faq-answer {
    display: block;
}

.faq-item.open .faq-question {
    color: #e74c3c;
}

/* HowTo 教程 */
.howto-section {
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 40px;
}

.howto-content {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.06);
}

.howto-content ol li {
    padding: 8px 0;
    transition: all 0.3s ease;
}

.howto-content ol li:hover {
    color: #e74c3c;
    padding-left: 5px;
}

/* 联系我们 */
.contact-section {
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 40px;
}

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

.contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 18px;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.contact-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
    border-color: rgba(231, 76, 60, 0.2);
}

.contact-item svg {
    color: #e74c3c;
    transition: transform 0.3s ease;
}

.contact-item:hover svg {
    transform: scale(1.2);
}

/* 网站地图 */
.sitemap-section {
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 40px;
}

.sitemap-links {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 25px;
}

.sitemap-col h3 {
    margin: 0 0 1em;
    color: #e74c3c;
}

.sitemap-col ul {
    list-style: none;
    padding: 0;
}

.sitemap-col li {
    margin: 0.5em 0;
}

.sitemap-col a {
    transition: all 0.3s ease;
    padding: 3px 0;
    display: inline-block;
}

.sitemap-col a:hover {
    color: #e74c3c;
    transform: translateX(5px);
}

/* 页脚 */
.footer {
    background: linear-gradient(135deg, #2c3e50, #1a252f);
    color: #ecf0f1;
    padding: 50px 20px 20px;
    margin-top: 50px;
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #e74c3c, #f39c12, #e74c3c);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 30px;
}

.footer h3 {
    color: #fff;
    margin: 0 0 1em;
    border: none;
    position: relative;
    padding-bottom: 10px;
}

.footer h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: #e74c3c;
}

.footer a {
    color: #bdc3c7;
    transition: all 0.3s ease;
}

.footer a:hover {
    color: #fff;
    padding-left: 5px;
}

.footer ul {
    list-style: none;
    padding: 0;
}

.footer li {
    margin: 0.5em 0;
}

.footer-bottom {
    max-width: 1200px;
    margin: 30px auto 0;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    font-size: 0.9em;
    color: #95a5a6;
}

/* 返回顶部 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: linear-gradient(135deg, #e74c3c, #c0392b);
    color: #fff;
    border: none;
    padding: 14px 18px;
    border-radius: 50%;
    cursor: pointer;
    display: none;
    z-index: 999;
    box-shadow: 0 4px 15px rgba(231, 76, 60, 0.4);
    transition: all 0.3s ease;
}

.back-to-top.show {
    display: block;
    animation: bounceIn 0.5s ease;
}

@keyframes bounceIn {
    0% {
        opacity: 0;
        transform: scale(0.5);
    }
    50% {
        transform: scale(1.1);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(231, 76, 60, 0.5);
}

/* 暗黑模式 */
body.dark-mode {
    background: linear-gradient(135deg, #0f0c29, #1a1a2e, #16213e);
    color: #e0e0e0;
}

body.dark-mode .header {
    background: rgba(22, 33, 62, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

body.dark-mode .nav-menu li a {
    color: #e0e0e0;
}

body.dark-mode .nav-menu li a:hover {
    background: rgba(231, 76, 60, 0.2);
}

body.dark-mode .nav-actions button {
    color: #e0e0e0;
}

body.dark-mode .search-box {
    background: rgba(22, 33, 62, 0.9);
}

body.dark-mode .search-box input {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    color: #e0e0e0;
}

body.dark-mode .brand-section,
body.dark-mode .products-section,
body.dark-mode .solutions-section,
body.dark-mode .cases-section,
body.dark-mode .news-section,
body.dark-mode .faq-section,
body.dark-mode .howto-section,
body.dark-mode .contact-section,
body.dark-mode .sitemap-section {
    background: rgba(22, 33, 62, 0.5);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
}

body.dark-mode .product-card,
body.dark-mode .solution-item,
body.dark-mode .case-card,
body.dark-mode .article-item,
body.dark-mode .faq-item,
body.dark-mode .howto-content,
body.dark-mode .contact-item,
body.dark-mode .testimonials blockquote,
body.dark-mode .product-advantages {
    background: rgba(22, 33, 62, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: #e0e0e0;
    border-color: rgba(255, 255, 255, 0.1);
}

body.dark-mode .footer {
    background: linear-gradient(135deg, #0d1b2a, #1b2838);
}

body.dark-mode .faq-question {
    color: #e0e0e0;
}

body.dark-mode .faq-question:hover {
    background: rgba(231, 76, 60, 0.15);
}

body.dark-mode .breadcrumb {
    color: #95a5a6;
}

body.dark-mode .breadcrumb a {
    color: #5dade2;
}

body.dark-mode h1 {
    background: linear-gradient(135deg, #e74c3c, #f39c12);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

body.dark-mode h2 {
    border-bottom-color: #e74c3c;
}

body.dark-mode .sitemap-col h3 {
    color: #e74c3c;
}

body.dark-mode .contact-item svg {
    color: #e74c3c;
}

body.dark-mode .dot {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
}

body.dark-mode .dot.active {
    background: #fff;
}

/* 响应式布局 */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 60px;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        padding: 20px;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        animation: slideDown 0.3s ease;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .brand-content {
        flex-direction: column;
    }
    
    .brand-image {
        text-align: center;
    }
    
    .banner-slide svg {
        height: 250px;
    }
    
    h1 {
        font-size: 1.5em;
    }
    
    h2 {
        font-size: 1.3em;
    }
    
    .articles-list {
        grid-template-columns: 1fr;
    }
    
    .banner-controls button {
        padding: 8px 12px;
        font-size: 1.2em;
    }
    
    body.dark-mode .nav-menu {
        background: rgba(22, 33, 62, 0.95);
    }
    
    .section {
        padding: 0 15px;
    }
    
    .brand-section,
    .products-section,
    .solutions-section,
    .cases-section,
    .news-section,
    .faq-section,
    .howto-section,
    .contact-section,
    .sitemap-section {
        padding: 25px;
    }
}

@media (max-width: 480px) {
    .section {
        padding: 0 10px;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .solutions-list {
        grid-template-columns: 1fr;
    }
    
    .cases-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-info {
        grid-template-columns: 1fr;
    }
    
    .sitemap-links {
        grid-template-columns: 1fr 1fr;
    }
    
    .brand-section,
    .products-section,
    .solutions-section,
    .cases-section,
    .news-section,
    .faq-section,
    .howto-section,
    .contact-section,
    .sitemap-section {
        padding: 20px;
    }
    
    .banner-slide svg {
        height: 200px;
    }
    
    h1 {
        font-size: 1.3em;
    }
    
    h2 {
        font-size: 1.1em;
    }
    
    .back-to-top {
        bottom: 20px;
        right: 20px;
        padding: 10px 14px;
    }
}

/* 滚动动画 */
.section {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.section.visible {
    opacity: 1;
    transform: translateY(0);
}

/* 选择样式 */
::selection {
    background: rgba(231, 76, 60, 0.3);
    color: #fff;
}

/* 滚动条美化 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 10px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #e74c3c, #c0392b);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #c0392b, #a93226);
}

body.dark-mode ::-webkit-scrollbar-track {
    background: #1a1a2e;
}

body.dark-mode ::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #e74c3c, #c0392b);
}