```css
/* 全局重置与基础 */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}
body {
    font-family: system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background: #f7f9fc;
    color: #1a1e2b;
    line-height: 1.6;
    transition: background 0.3s, color 0.3s;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
body.dark {
    background: #0b0e17;
    color: #e3e7f0;
}
a {
    text-decoration: none;
    color: inherit;
}
ul, ol {
    list-style: none;
}
img, svg {
    max-width: 100%;
    display: block;
}
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* 头部导航 */
header {
    background: rgba(10, 15, 30, 0.85);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    color: #fff;
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: 50;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}
.header-wrap {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo {
    font-weight: 700;
    font-size: 1.8rem;
    letter-spacing: 2px;
    background: linear-gradient(45deg, #f0b429, #f7d875);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.nav-list {
    display: flex;
    list-style: none;
    gap: 28px;
}
.nav-list a {
    color: #eef2f9;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
    position: relative;
}
.nav-list a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: #f0b429;
    transition: width 0.2s;
}
.nav-list a:hover::after,
.nav-list a.active::after {
    width: 100%;
}
.nav-list a:hover {
    color: #f0b429;
}
.menu-toggle {
    display: none;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: #fff;
    padding: 6px 12px;
    border-radius: 30px;
    font-size: 1.2rem;
    cursor: pointer;
    transition: background 0.2s;
}
.menu-toggle:hover {
    background: rgba(255, 255, 255, 0.1);
}
.dark-mode-toggle {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff;
    border-radius: 40px;
    padding: 6px 14px;
    font-size: 1rem;
    cursor: pointer;
    margin-left: 12px;
    transition: all 0.2s;
}
.dark-mode-toggle:hover {
    border-color: #f0b429;
    color: #f0b429;
}
.dark .dark-mode-toggle {
    border-color: #f0b429;
    color: #f0b429;
}
.search-box {
    display: flex;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 60px;
    padding: 4px 4px 4px 18px;
    align-items: center;
    max-width: 260px;
    margin-left: auto;
    transition: background 0.3s;
}
.search-box:focus-within {
    background: rgba(255, 255, 255, 0.15);
}
.search-box input {
    background: transparent;
    border: none;
    color: #fff;
    padding: 8px 0;
    outline: none;
    width: 100%;
    font-size: 0.95rem;
}
.search-box input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}
.search-box button {
    background: #f0b429;
    border: none;
    border-radius: 40px;
    padding: 6px 16px;
    font-weight: 600;
    color: #0a0f1e;
    cursor: pointer;
    transition: background 0.2s, transform 0.2s;
}
.search-box button:hover {
    background: #e0a420;
    transform: scale(1.02);
}
.dark .search-box {
    background: #1f2a44;
}

/* 面包屑 */
.breadcrumb {
    display: flex;
    gap: 6px;
    font-size: 0.9rem;
    padding: 20px 0 0;
    color: #5a6a82;
    list-style: none;
}
.breadcrumb li + li::before {
    content: '/';
    padding: 0 8px;
    color: #7a89a2;
}
.breadcrumb a {
    color: #f0b429;
    text-decoration: none;
    transition: opacity 0.2s;
}
.breadcrumb a:hover {
    opacity: 0.8;
}

/* Hero 区 */
.hero {
    background: linear-gradient(145deg, #10172b, #1f2b4a);
    color: #fff;
    padding: 80px 0 100px;
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    top: -40%;
    left: -20%;
    width: 70%;
    height: 100%;
    background: radial-gradient(circle at 30% 40%, rgba(240, 180, 41, 0.12), transparent 70%);
    pointer-events: none;
}
.hero .container {
    position: relative;
    z-index: 2;
}
.hero h1 {
    font-size: 3.2rem;
    font-weight: 700;
    line-height: 1.2;
    max-width: 800px;
    margin-bottom: 24px;
    background: linear-gradient(to right, #f7f0e6, #f0b429);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero p {
    font-size: 1.25rem;
    opacity: 0.85;
    margin-bottom: 40px;
    max-width: 600px;
}
.hero-actions {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}
.btn {
    display: inline-block;
    padding: 14px 38px;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.25s;
    border: 1px solid transparent;
    background: #f0b429;
    color: #0a0f1e;
    box-shadow: 0 8px 18px rgba(240, 180, 41, 0.25);
    cursor: pointer;
}
.btn-outline {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.4);
    color: #fff;
    backdrop-filter: blur(4px);
}
.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 24px rgba(240, 180, 41, 0.35);
}
.btn-outline:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: #f0b429;
}

/* 轮播 */
.banner-carousel {
    position: relative;
    overflow: hidden;
    border-radius: 32px;
    background: #1f2b4a;
    min-height: 220px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    margin-bottom: 48px;
}
.carousel-slide {
    display: none;
    padding: 40px 32px;
    text-align: center;
    width: 100%;
}
.carousel-slide.active {
    display: block;
    animation: fade 0.6s;
}
@keyframes fade {
    from { opacity: 0; }
    to { opacity: 1; }
}
.carousel-controls {
    position: absolute;
    bottom: 16px;
    right: 24px;
    display: flex;
    gap: 8px;
}
.carousel-btn {
    background: rgba(255, 255, 255, 0.15);
    border: none;
    color: #fff;
    padding: 8px 16px;
    border-radius: 40px;
    cursor: pointer;
    backdrop-filter: blur(4px);
    font-weight: 600;
    transition: background 0.2s;
}
.carousel-btn:hover {
    background: rgba(255, 255, 255, 0.25);
}

/* 通用区块 */
.brand-story, .about, .history, .team, .products, .advantages, .solutions, .cases, .partners, .testimonials, .news, .faq, .howto, .contact, .footer-section {
    padding: 72px 0;
}
.section-title {
    font-size: 2.2rem;
    font-weight: 600;
    margin-bottom: 16px;
    position: relative;
    display: inline-block;
}
.section-title::after {
    content: '';
    display: block;
    width: 50px;
    height: 4px;
    background: #f0b429;
    margin-top: 8px;
    border-radius: 4px;
}

/* 卡片网格 */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 28px;
}
.glass-card {
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 28px;
    padding: 28px 22px;
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.5);
    transition: all 0.3s;
}
.glass-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 36px rgba(0, 0, 0, 0.08);
}
.dark .glass-card {
    background: rgba(20, 28, 48, 0.6);
    border-color: rgba(255, 255, 255, 0.08);
}
.badge {
    display: inline-block;
    background: rgba(240, 180, 41, 0.12);
    color: #b8860b;
    padding: 4px 14px;
    border-radius: 40px;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 12px;
}
.dark .badge {
    color: #f0b429;
    background: rgba(240, 180, 41, 0.15);
}

/* 工具类 */
.flex-center {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 24px;
}
.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}

/* 合作伙伴 */
.partner-logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 40px 60px;
    padding: 20px 0;
}
.partner-item {
    width: 100px;
    height: 50px;
    background: linear-gradient(145deg, #e6eaf2, #d0d7e6);
    border-radius: 40px;
    opacity: 0.7;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    color: #1a2645;
    transition: all 0.2s;
}
.dark .partner-item {
    background: #1f2a44;
    color: #cbd5f0;
}
.partner-item:hover {
    opacity: 1;
    transform: scale(1.05);
}

/* 团队 */
.team-img {
    border-radius: 50%;
    width: 80px;
    height: 80px;
    background: linear-gradient(145deg, #e4e9f2, #cbd3e0);
    margin-bottom: 12px;
}
.dark .team-img {
    background: #1f2a44;
}

/* 产品 SVG */
.product-svg {
    width: 100%;
    height: auto;
    max-height: 160px;
    margin-bottom: 12px;
}
.product-svg circle,
.product-svg rect,
.product-svg polygon,
.product-svg path {
    fill: #f0b429;
    opacity: 0.8;
}

/* 新闻 */
.news-meta {
    color: #5a6a82;
    font-size: 0.9rem;
}
.dark .news-meta {
    color: #8896b8;
}

/* FAQ */
.faq-item {
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    padding: 16px 0;
}
.dark .faq-item {
    border-color: rgba(255, 255, 255, 0.05);
}
.faq-question {
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: color 0.2s;
}
.faq-question:hover {
    color: #f0b429;
}
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
    padding-top: 6px;
    color: #3c4252;
}
.dark .faq-answer {
    color: #b0bcd9;
}
.faq-item.active .faq-answer {
    max-height: 200px;
}
.faq-question::after {
    content: '+';
    font-size: 1.4rem;
    transition: transform 0.3s;
}
.faq-item.active .faq-question::after {
    transform: rotate(45deg);
}

/* HowTo 步骤 */
.howto-steps {
    list-style: none;
    counter-reset: step;
}
.howto-steps li {
    counter-increment: step;
    padding: 14px 0 14px 48px;
    position: relative;
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
    transition: background 0.2s;
}
.howto-steps li:hover {
    background: rgba(240, 180, 41, 0.02);
}
.howto-steps li::before {
    content: counter(step);
    position: absolute;
    left: 0;
    top: 12px;
    width: 32px;
    height: 32px;
    background: #f0b429;
    color: #0a0f1e;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}
.dark .howto-steps li {
    border-color: #1f2a44;
}

/* 联系我们 */
address {
    font-style: normal;
}

/* 页脚 */
.footer {
    background: #0a0f1e;
    color: #b0bcd9;
    padding: 48px 0 24px;
}
.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 32px;
}
.footer a {
    color: #b0bcd9;
    text-decoration: none;
    transition: color 0.2s;
}
.footer a:hover {
    color: #f0b429;
}
.footer-bottom {
    border-top: 1px solid #1f2a44;
    margin-top: 36px;
    padding-top: 24px;
    text-align: center;
    font-size: 0.9rem;
}

/* 返回顶部 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: #f0b429;
    color: #0a0f1e;
    border: none;
    padding: 12px 18px;
    border-radius: 50px;
    font-weight: 700;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
    cursor: pointer;
    z-index: 99;
    transition: all 0.2s;
    opacity: 0;
    pointer-events: none;
}
.back-to-top:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}
.back-to-top.visible {
    opacity: 1;
    pointer-events: auto;
}

/* 响应式 */
@media (max-width: 768px) {
    .nav-list {
        display: none;
        flex-direction: column;
        background: #0f162b;
        position: absolute;
        top: 70px;
        right: 20px;
        padding: 20px;
        border-radius: 24px;
        gap: 16px;
        min-width: 200px;
        box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
    }
    .nav-list.open {
        display: flex;
    }
    .menu-toggle {
        display: block;
    }
    .hero h1 {
        font-size: 2.2rem;
    }
    .section-title {
        font-size: 1.8rem;
    }
    .card-grid {
        grid-template-columns: 1fr;
    }
    .grid-2 {
        grid-template-columns: 1fr;
    }
    .search-box {
        max-width: 180px;
    }
    .banner-carousel {
        min-height: 180px;
    }
    .carousel-slide {
        padding: 24px 16px;
    }
}

/* 滚动动画（渐进增强） */
@media (prefers-reduced-motion: no-preference) {
    .glass-card {
        opacity: 0;
        transform: translateY(20px);
        animation: fadeInUp 0.6s forwards;
    }
    .glass-card:nth-child(1) { animation-delay: 0.1s; }
    .glass-card:nth-child(2) { animation-delay: 0.2s; }
    .glass-card:nth-child(3) { animation-delay: 0.3s; }
    .glass-card:nth-child(4) { animation-delay: 0.4s; }
    .glass-card:nth-child(5) { animation-delay: 0.5s; }
    .glass-card:nth-child(6) { animation-delay: 0.6s; }
}
@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 暗色模式下的额外微调 */
.dark .hero::before {
    opacity: 0.15;
}
.dark .carousel-btn {
    background: rgba(255, 255, 255, 0.1);
}
.dark .carousel-btn:hover {
    background: rgba(255, 255, 255, 0.2);
}
```