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

:root {
    --bg: #0a0a1a;
    --bg2: #1a1a2e;
    --bg3: #16213e;
    --primary: #ffd700;
    --secondary: #e94560;
    --text: #e0e0e0;
    --text2: #ccc;
    --card-bg: rgba(26, 26, 46, 0.8);
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    --radius: 16px;
    --transition: 0.3s ease;
}

body.dark-mode {
    --bg: #0a0a1a;
    --bg2: #1a1a2e;
    --bg3: #16213e;
    --text: #e0e0e0;
    --text2: #ccc;
    --card-bg: rgba(26, 26, 46, 0.8);
}

/* 基础样式 */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    scroll-behavior: smooth;
    overflow-x: hidden;
}

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

/* 头部导航 */
header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(10, 10, 26, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 215, 0, 0.1);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    transition: transform var(--transition);
}

.logo:hover {
    transform: scale(1.05);
}

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

.nav-menu a {
    color: var(--text);
    text-decoration: none;
    font-size: 16px;
    transition: color var(--transition), transform var(--transition);
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width var(--transition);
}

.nav-menu a:hover {
    color: var(--primary);
    transform: translateY(-2px);
}

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

.nav-right {
    display: flex;
    align-items: center;
    gap: 15px;
}

.search-box {
    display: flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 30px;
    padding: 5px 15px;
    transition: background var(--transition), box-shadow var(--transition);
}

.search-box:focus-within {
    background: rgba(255, 255, 255, 0.2);
    box-shadow: 0 0 15px rgba(255, 215, 0, 0.2);
}

.search-box input {
    background: none;
    border: none;
    color: var(--text);
    padding: 5px;
    outline: none;
    width: 150px;
    font-size: 14px;
}

.search-box input::placeholder {
    color: var(--text2);
    opacity: 0.7;
}

.search-box button {
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
    transition: transform var(--transition);
}

.search-box button:hover {
    transform: scale(1.1);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
    transition: transform var(--transition);
}

.menu-toggle:hover {
    transform: scale(1.1);
}

#darkModeToggle {
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
    transition: transform var(--transition), filter var(--transition);
}

#darkModeToggle:hover {
    transform: scale(1.15);
    filter: brightness(1.2);
}

.mobile-menu {
    display: none;
    list-style: none;
    background: var(--bg2);
    padding: 20px;
    position: absolute;
    top: 60px;
    left: 0;
    width: 100%;
    box-shadow: var(--shadow);
    animation: slideDown 0.3s ease;
}

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

.mobile-menu.active {
    display: block;
}

.mobile-menu a {
    color: var(--text);
    text-decoration: none;
    display: block;
    padding: 12px 0;
    font-size: 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: color var(--transition), padding-left var(--transition);
}

.mobile-menu a:hover {
    color: var(--primary);
    padding-left: 10px;
}

/* Hero 区域 */
.hero {
    position: relative;
    margin-top: 70px;
    overflow: hidden;
}

.hero-banner {
    position: relative;
    width: 100%;
    height: 600px;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease;
}

.slide.active {
    opacity: 1;
}

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

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: background var(--transition), transform var(--transition);
}

.dot:hover {
    transform: scale(1.3);
}

.dot.active {
    background: var(--primary);
    box-shadow: 0 0 10px rgba(255, 215, 0, 0.5);
}

.banner-prev,
.banner-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.5);
    border: none;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition), transform var(--transition);
    z-index: 10;
    backdrop-filter: blur(5px);
}

.banner-prev:hover,
.banner-next:hover {
    background: rgba(255, 215, 0, 0.3);
    transform: translateY(-50%) scale(1.1);
}

.banner-prev { left: 20px; }
.banner-next { right: 20px; }

/* 面包屑 */
.breadcrumb {
    background: var(--bg2);
    padding: 10px 20px;
}

.breadcrumb ul {
    list-style: none;
    display: flex;
    gap: 10px;
    max-width: 1200px;
    margin: 0 auto;
    flex-wrap: wrap;
}

.breadcrumb li {
    color: var(--text2);
    font-size: 14px;
}

.breadcrumb li+li::before {
    content: '/';
    margin-right: 10px;
    color: var(--text2);
}

.breadcrumb a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition);
}

.breadcrumb a:hover {
    color: #ffed4a;
}

/* 通用 Section */
section {
    padding: 80px 0;
    position: relative;
}

h1, h2, h3 {
    color: var(--primary);
    margin-bottom: 20px;
}

h1 { font-size: 2.5em; }
h2 { font-size: 2em; text-align: center; position: relative; }
h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    margin: 10px auto 0;
    border-radius: 2px;
}
h3 { font-size: 1.5em; }

p {
    margin-bottom: 15px;
    color: var(--text2);
}

.about p {
    text-indent: 2em;
}

/* 卡片网格通用 */
.culture-grid,
.team-grid,
.product-grid,
.service-grid,
.stats-grid,
.case-grid,
.partner-grid,
.review-grid,
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 30px;
}

/* 毛玻璃卡片 */
.culture-card,
.team-card,
.product-card,
.service-card,
.stat-card,
.case-card,
.review-card,
.news-card {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: var(--radius);
    padding: 30px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: transform var(--transition), box-shadow var(--transition);
    border: 1px solid rgba(255, 215, 0, 0.1);
    position: relative;
    overflow: hidden;
}

.culture-card::before,
.team-card::before,
.product-card::before,
.service-card::before,
.stat-card::before,
.case-card::before,
.review-card::before,
.news-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 215, 0, 0.05) 0%, transparent 70%);
    opacity: 0;
    transition: opacity var(--transition);
    pointer-events: none;
}

.culture-card:hover::before,
.team-card:hover::before,
.product-card:hover::before,
.service-card:hover::before,
.stat-card:hover::before,
.case-card:hover::before,
.review-card:hover::before,
.news-card:hover::before {
    opacity: 1;
}

.culture-card:hover,
.team-card:hover,
.product-card:hover,
.service-card:hover,
.stat-card:hover,
.case-card:hover,
.review-card:hover,
.news-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 12px 40px rgba(255, 215, 0, 0.2);
    border-color: rgba(255, 215, 0, 0.3);
}

/* 产品优势 */
.advantages ul {
    list-style: none;
    max-width: 600px;
    margin: 0 auto;
}

.advantages li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    font-size: 18px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: padding-left var(--transition);
}

.advantages li:hover {
    padding-left: 10px;
}

.advantages li svg {
    flex-shrink: 0;
}

/* FAQ 折叠 */
.faq-item {
    background: var(--card-bg);
    border-radius: var(--radius);
    margin-bottom: 10px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: border-color var(--transition);
}

.faq-item:hover {
    border-color: rgba(255, 215, 0, 0.2);
}

.faq-question {
    width: 100%;
    background: none;
    border: none;
    color: var(--text);
    font-size: 18px;
    padding: 20px;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background var(--transition);
}

.faq-question:hover {
    background: rgba(255, 255, 255, 0.05);
}

.faq-icon {
    font-size: 24px;
    transition: transform var(--transition);
    color: var(--primary);
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.3s ease;
    padding: 0 20px;
}

.faq-item.active .faq-answer {
    max-height: 200px;
    padding: 20px;
}

/* HowTo */
.howto ol {
    max-width: 600px;
    margin: 0 auto;
    padding-left: 20px;
    counter-reset: step;
}

.howto li {
    padding: 12px 0;
    font-size: 18px;
    counter-increment: step;
    position: relative;
    padding-left: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.howto li::before {
    content: counter(step);
    position: absolute;
    left: 0;
    top: 12px;
    width: 28px;
    height: 28px;
    background: var(--primary);
    color: #0a0a1a;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 14px;
}

/* 联系信息 */
.contact-info p {
    font-size: 18px;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 0;
    transition: padding-left var(--transition);
}

.contact-info p:hover {
    padding-left: 10px;
}

/* 可信度 */
.credibility p {
    font-size: 16px;
    padding: 6px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

/* 网站地图 & 友情链接 */
.sitemap ul,
.links ul {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    list-style: none;
    justify-content: center;
}

.sitemap a,
.links a {
    color: var(--primary);
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 30px;
    background: rgba(255, 215, 0, 0.1);
    transition: background var(--transition), transform var(--transition);
    font-size: 15px;
}

.sitemap a:hover,
.links a:hover {
    background: rgba(255, 215, 0, 0.2);
    transform: translateY(-2px);
}

/* Footer */
footer {
    background: var(--bg2);
    padding: 30px 0;
    text-align: center;
    border-top: 1px solid rgba(255, 215, 0, 0.1);
}

footer p {
    color: var(--text2);
    font-size: 14px;
}

/* 返回顶部按钮 */
#backToTop {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: var(--primary);
    border: none;
    border-radius: 50%;
    width: 60px;
    height: 60px;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(255, 215, 0, 0.3);
    transition: transform var(--transition), box-shadow var(--transition);
    z-index: 999;
}

#backToTop:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 25px rgba(255, 215, 0, 0.5);
}

/* 滚动动画 */
.scroll-animate {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.scroll-animate.visible {
    opacity: 1;
    transform: translateY(0);
}

/* 响应式 */
@media (max-width: 768px) {
    .nav-menu { display: none; }
    .menu-toggle { display: block; }
    .search-box input { width: 100px; }
    .hero-banner { height: 400px; }
    h1 { font-size: 1.8em; }
    h2 { font-size: 1.5em; }
    .culture-grid,
    .team-grid,
    .product-grid,
    .service-grid,
    .stats-grid,
    .case-grid,
    .partner-grid,
    .review-grid,
    .news-grid {
        grid-template-columns: 1fr;
    }
    section {
        padding: 50px 0;
    }
    .banner-prev,
    .banner-next {
        width: 40px;
        height: 40px;
    }
    .banner-prev { left: 10px; }
    .banner-next { right: 10px; }
    .container {
        padding: 15px;
    }
    .advantages li {
        font-size: 16px;
    }
    .howto li {
        font-size: 16px;
    }
    .contact-info p {
        font-size: 16px;
    }
}

@media (max-width: 480px) {
    .hero-banner { height: 300px; }
    .search-box { display: none; }
    h1 { font-size: 1.5em; }
    h2 { font-size: 1.3em; }
    .nav-container {
        padding: 8px 12px;
    }
    .banner-prev,
    .banner-next {
        width: 35px;
        height: 35px;
    }
    #backToTop {
        width: 50px;
        height: 50px;
        bottom: 20px;
        right: 20px;
    }
    .culture-card,
    .team-card,
    .product-card,
    .service-card,
    .stat-card,
    .case-card,
    .review-card,
    .news-card {
        padding: 20px;
    }
}

/* 渐变Banner定制 */
.hero-banner svg {
    display: block;
}

/* 数字统计动画辅助 */
.counter {
    font-size: 2.5em;
    font-weight: bold;
    color: var(--primary);
}

/* 合作伙伴Logo区域 */
.partner-grid svg {
    transition: transform var(--transition), filter var(--transition);
    cursor: pointer;
}

.partner-grid svg:hover {
    transform: scale(1.05);
    filter: brightness(1.2);
}

/* 文章列表 */
.article-list article {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 25px;
    margin-bottom: 20px;
    border: 1px solid rgba(255, 215, 0, 0.1);
    transition: transform var(--transition), box-shadow var(--transition);
}

.article-list article:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(255, 215, 0, 0.15);
}

.article-list h3 {
    font-size: 1.3em;
    margin-bottom: 10px;
}

.article-list p {
    color: var(--text2);
}

/* 团队卡片头像区域 */
.team-card svg {
    margin-bottom: 15px;
}

/* 品牌故事时间线 */
.story svg {
    margin-top: 20px;
}

/* 客户评价星星 */
.review-card svg {
    margin-bottom: 10px;
}

/* 新闻卡片标题 */
.news-card h3 {
    font-size: 1.2em;
    margin-top: 15px;
}

/* 产品卡片内联SVG */
.product-card svg {
    margin-bottom: 15px;
}

/* 服务卡片序号 */
.service-card svg {
    margin-bottom: 15px;
}

/* 文化卡片图标 */
.culture-card svg {
    margin-bottom: 15px;
}