/* roulang page: index */
:root {
            /* 设计变量 */
            --primary-bg: #1A0B2E;
            --secondary-bg: rgba(255, 255, 255, 0.05);
            --card-bg: rgba(255, 255, 255, 0.03);
            --accent-cyan: #00F3FF;
            --accent-silver: #E0E7FF;
            --accent-purple: #7B61FF;
            --text-primary: #FFFFFF;
            --text-secondary: #CCD6F6;
            --text-muted: #8892B0;
            --border-light: rgba(224, 231, 255, 0.1);
            --border-cyan: rgba(0, 243, 255, 0.3);
            --border-radius-base: 0.75rem;
            --border-radius-card: 1rem;
            --box-shadow-card: 0 10px 30px rgba(0, 243, 255, 0.1);
            --box-shadow-glow: 0 0 15px rgba(0, 243, 255, 0.4);
            --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        /* 基础重置与全局样式 */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Source Han Sans CN', 'Microsoft YaHei', 'Segoe UI', sans-serif;
            background-color: var(--primary-bg);
            color: var(--text-secondary);
            line-height: 1.6;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }
        h1, h2, h3, h4, h5, h6 {
            color: var(--text-primary);
            font-weight: 700;
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        h1 {
            font-size: 3.5rem;
            background: linear-gradient(90deg, var(--text-primary) 70%, var(--accent-cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        @media (max-width: 768px) {
            h1 { font-size: 2.5rem; }
        }
        h2 {
            font-size: 2.5rem;
            position: relative;
            padding-left: 1rem;
        }
        h2::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0.5rem;
            bottom: 0.5rem;
            width: 4px;
            background: var(--accent-cyan);
            border-radius: 2px;
        }
        h3 { font-size: 1.75rem; }
        p {
            margin-bottom: 1.25rem;
            font-size: 1.125rem;
            color: var(--text-secondary);
        }
        a {
            color: var(--accent-silver);
            text-decoration: none;
            transition: var(--transition-base);
        }
        a:hover {
            color: var(--accent-cyan);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--border-radius-base);
        }
        .container-custom {
            max-width: 1280px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        section {
            padding-top: 5rem;
            padding-bottom: 5rem;
        }
        @media (max-width: 768px) {
            section {
                padding-top: 3rem;
                padding-bottom: 3rem;
            }
        }

        /* 按钮样式 */
        .btn {
            border-radius: var(--border-radius-card);
            padding: 0.75rem 2rem;
            font-weight: 600;
            border: none;
            transition: var(--transition-base);
            position: relative;
            overflow: hidden;
        }
        .btn-primary-custom {
            background-color: var(--accent-cyan);
            color: #0B0F29;
            box-shadow: inset 0 0 15px rgba(255, 255, 255, 0.3), 0 5px 15px rgba(0, 243, 255, 0.2);
        }
        .btn-primary-custom:hover,
        .btn-primary-custom:focus {
            background-color: var(--accent-purple);
            color: #fff;
            box-shadow: var(--box-shadow-glow), 0 5px 20px rgba(123, 97, 255, 0.3);
            transform: translateY(-3px);
        }
        .btn-outline-custom {
            background-color: transparent;
            color: var(--accent-silver);
            border: 1px solid var(--accent-silver);
        }
        .btn-outline-custom:hover,
        .btn-outline-custom:focus {
            background-color: rgba(224, 231, 255, 0.1);
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
        }
        .btn-link-custom {
            color: var(--accent-cyan);
            padding: 0;
            font-weight: 600;
        }
        .btn-link-custom:hover {
            color: var(--accent-silver);
            text-decoration: underline;
        }

        /* 导航栏 */
        .site-header {
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1030;
            background-color: rgba(26, 11, 46, 0.9);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition-base);
        }
        .site-header.scrolled {
            background-color: rgba(20, 9, 37, 0.95);
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
        }
        .navbar-brand {
            font-weight: 800;
            font-size: 1.8rem;
            color: var(--text-primary) !important;
            display: flex;
            align-items: center;
        }
        .navbar-brand .logo-icon {
            display: inline-block;
            width: 36px;
            height: 36px;
            margin-right: 10px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
            border-radius: 50%;
            position: relative;
        }
        .navbar-brand .logo-icon::after {
            content: 'iG';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            color: var(--primary-bg);
            font-weight: 900;
            font-size: 0.9rem;
        }
        /* 分段标签导航 */
        .nav-chips {
            display: flex;
            gap: 0.5rem;
            background: rgba(255, 255, 255, 0.03);
            padding: 0.25rem;
            border-radius: var(--border-radius-card);
            border: 1px solid var(--border-light);
        }
        .nav-chips .nav-link {
            padding: 0.6rem 1.5rem;
            border-radius: 0.75rem;
            color: var(--text-muted);
            font-weight: 500;
            background: transparent;
            border: none;
            transition: var(--transition-base);
        }
        .nav-chips .nav-link:hover {
            color: var(--text-secondary);
            background: rgba(255, 255, 255, 0.05);
        }
        .nav-chips .nav-link.active {
            color: var(--primary-bg);
            background: var(--accent-cyan);
            box-shadow: 0 0 10px rgba(0, 243, 255, 0.5);
        }
        .navbar-nav .nav-item .nav-link {
            color: var(--text-secondary);
            font-weight: 500;
            padding: 0.5rem 1rem;
               .navbar-nav .nav-item .nav-link:hover,
        .navbar-nav .nav-item .nav-link:focus {
            color: var(--accent-cyan);
        }
        .navbar-nav .nav-item .nav-link.active {
            color: var(--accent-cyan);
            font-weight: 600;
        }
        /* 移动端导航抽屉 */
        @media (max-width: 991px) {
            .nav-chips {
                flex-direction: column;
                margin: 1rem 0;
                background: transparent;
                border: none;
                gap: 0.25rem;
            }
            .nav-chips .nav-link {
                text-align: left;
                border-radius: 0.5rem;
            }
            .navbar-collapse {
                background-color: rgba(20, 9, 37, 0.98);
                padding: 1.5rem;
                border-radius: var(--border-radius-card);
                margin-top: 1rem;
                border: 1px solid var(--border-light);
            }
        }
        .hero-cta-btn {
            padding: 1rem 2.5rem;
            font-size: 1.1rem;
        }

        /* 卡片与板块通用 */
        .card-custom {
            background: var(--secondary-bg);
            border: 1px solid var(--border-light);
            border-radius: var(--border-radius-card);
            overflow: hidden;
            transition: var(--transition-base);
            backdrop-filter: blur(10px);
            height: 100%;
        }
        .card-custom:hover {
            border-color: var(--border-cyan);
            box-shadow: var(--box-shadow-card), 0 15px 40px rgba(0, 243, 255, 0.1);
            transform: translateY(-10px);
        }
        .card-custom-lg {
            padding: 2.5rem;
        }
        .card-custom-sm {
            padding: 1.5rem;
        }
        .icon-box {
            width: 64px;
            height: 64px;
            background: linear-gradient(135deg, rgba(0, 243, 255, 0.1), rgba(123, 97, 255, 0.1));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.5rem;
        }
        .icon-box i {
            font-size: 1.8rem;
            color: var(--accent-cyan);
        }
        .feature-number {
            font-size: 3.5rem;
            font-weight: 800;
            color: var(--accent-cyan);
            line-height: 1;
        }
        .feature-unit {
            font-size: 1.2rem;
            color: var(--text-muted);
            margin-left: 0.25rem;
        }
        .badge-custom {
            background-color: var(--accent-purple);
            color: white;
            padding: 0.35rem 0.9rem;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            display: inline-block;
        }
        .section-title {
            margin-bottom: 3rem;
        }

        /* FAQ 手风琴 */
        .accordion-custom .accordion-item {
            background-color: transparent;
            border: 1px solid var(--border-light);
            border-radius: var(--border-radius-base);
            margin-bottom: 1rem;
            overflow: hidden;
        }
        .accordion-custom .accordion-button {
            background-color: rgba(255, 255, 255, 0.03);
            color: var(--text-primary);
            font-weight: 600;
            padding: 1.25rem;
            border: none;
            box-shadow: none;
        }
        .accordion-custom .accordion-button:not(.collapsed) {
            background-color: rgba(0, 243, 255, 0.1);
            color: var(--accent-cyan);
        }
        .accordion-custom .accordion-button:focus {
            box-shadow: 0 0 0 0.25rem rgba(0, 243, 255, 0.25);
        }
        .accordion-custom .accordion-button::after {
            filter: invert(0.8);
        }
        .accordion-custom .accordion-body {
            background-color: rgba(255, 255, 255, 0.02);
            color: var(--text-secondary);
            padding: 1.25rem;
            border-top: 1px solid var(--border-light);
        }

        /* 页脚 */
        .site-footer {
            background-color: #0e0719;
            padding-top: 4rem;
            padding-bottom: 2rem;
            border-top: 1px solid var(--border-light);
            margin-top: 5rem;
        }
        .footer-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 1.5rem;
        }
        .footer-links h5 {
            color: var(--accent-silver);
            font-size: 1.1rem;
            margin-bottom: 1.5rem;
            position: relative;
            padding-bottom: 0.5rem;
        }
        .footer-links h5::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 30px;
            height: 2px;
            background: var(--accent-cyan);
        }
        .footer-links ul {
            list-style: none;
            padding-left: 0;
        }
        .footer-links ul li {
            margin-bottom: 0.75rem;
        }
        .footer-links ul li a {
            color: var(--text-muted);
        }
        .footer-links ul li a:hover {
            color: var(--accent-cyan);
            padding-left: 5px;
        }
        .social-icons a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background-color: rgba(255, 255, 255, 0.05);
            color: var(--text-muted);
            border-radius: 50%;
            margin-right: 0.75rem;
            font-size: 1.1rem;
        }
        .social-icons a:hover {
            background-color: var(--accent-cyan);
            color: var(--primary-bg);
            transform: translateY(-3px);
        }
        .copyright {
            color: var(--text-muted);
            font-size: 0.9rem;
            padding-top: 2rem;
            margin-top: 3rem;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            text-align: center;
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .display-4 {
                font-size: 2.5rem;
            }
            .lead {
                font-size: 1.1rem;
            }
        }

/* roulang page: category1 */
:root {
        /* 设计变量 - 基于星空紫与赛博青 */
        --primary-bg: #1A0B2E;
        --secondary-bg: rgba(255, 255, 255, 0.05);
        --accent-cyan: #00F3FF;
        --accent-silver: #E0E7FF;
        --accent-purple: #7B61FF;
        --text-primary: #FFFFFF;
        --text-secondary: #CCD6F6;
        --text-muted: #8892B0;
        --border-radius-base: 0.75rem;
        --border-radius-card: 1rem;
        --border-color: rgba(224, 231, 255, 0.1);
        --shadow-glow: 0 10px 30px rgba(0, 243, 255, 0.1);
        --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

    /* 基础重置与全局样式 */
    * {
        box-sizing: border-box;
    }
    body {
        font-family: "Source Han Sans CN", "PingFang SC", "Microsoft YaHei", sans-serif;
        font-weight: 400;
        line-height: 1.6;
        color: var(--text-secondary);
        background-color: var(--primary-bg);
        overflow-x: hidden;
    }
    h1, h2, h3, h4, h5, h6 {
        font-weight: 700;
        color: var(--text-primary);
        margin-bottom: 1rem;
    }
    h1 {
        font-size: 3.5rem;
        line-height: 1.2;
        background: linear-gradient(90deg, var(--accent-silver), var(--accent-cyan));
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }
    h2 {
        font-size: 2.5rem;
        position: relative;
        padding-bottom: 1rem;
    }
    h2::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 0;
        width: 80px;
        height: 4px;
        background: linear-gradient(90deg, var(--accent-cyan), transparent);
        border-radius: 2px;
    }
    .section-title-center h2::after {
        left: 50%;
        transform: translateX(-50%);
    }
    p {
        margin-bottom: 1.5rem;
        font-size: 1.125rem;
    }
    a {
        color: var(--accent-silver);
        text-decoration: none;
        transition: var(--transition-smooth);
    }
    a:hover {
        color: var(--accent-cyan);
    }
    img {
        max-width: 100%;
        border-radius: var(--border-radius-base);
    }
    .container-custom {
        max-width: 1280px;
        margin: 0 auto;
        padding-left: 1.5rem;
        padding-right: 1.5rem;
    }

    /* 导航 - 分段标签样式 (沿用首页结构) */
    .site-header {
        background: rgba(26, 11, 46, 0.85);
        backdrop-filter: blur(10px);
        border-bottom: 1px solid var(--border-color);
        position: sticky;
        top: 0;
        z-index: 1030;
        transition: var(--transition-smooth);
    }
    .navbar-brand {
        font-weight: 700;
        font-size: 1.8rem;
        color: var(--text-primary) !important;
        display: inline-flex;
        align-items: center;
    }
    .logo-icon {
        display: inline-block;
        width: 32px;
        height: 32px;
        margin-right: 10px;
        background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
        border-radius: 8px;
        position: relative;
    }
    .logo-icon::after {
        content: '∞';
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        color: var(--primary-bg);
        font-weight: 900;
        font-size: 16px;
    }
    .nav-chips {
        display: inline-flex;
        background: rgba(255, 255, 255, 0.05);
        border-radius: 2rem;
        padding: 0.5rem;
        border: 1px solid var(--border-color);
    }
    .nav-chips .nav-link {
        color: var(--text-muted);
        padding: 0.75rem 1.5rem;
        border-radius: 2rem;
        font-weight: 500;
        margin: 0 0.25rem;
        transition: var(--transition-smooth);
    }
    .nav-chips .nav-link:hover,
    .nav-chips .nav-link.active {
        color: var(--text-primary);
        background-color: var(--accent-cyan);
        box-shadow: 0 0 20px rgba(0, 243, 255, 0.4);
    }
    /* 当前分类页 active 状态调整 */
    .nav-chips .nav-link[data-slug="industry-insights"] {
        color: var(--text-primary);
        background-color: var(--accent-cyan);
        box-shadow: 0 0 20px rgba(0, 243, 255, 0.4);
    }
    .nav-chips .nav-link[data-slug="home"] {
        background-color: transparent;
        box-shadow: none;
    }
    .btn-primary-custom {
        background-color: var(--accent-cyan);
        color: #0B0F29;
        border: none;
        border-radius: var(--border-radius-card);
        padding: 1rem 2rem;
        font-weight: 700;
        box-shadow: inset 0 0 15px rgba(255, 255, 255, 0.3),
                    0 5px 15px rgba(0, 243, 255, 0.3);
        transition: var(--transition-smooth);
    }
    .btn-primary-custom:hover {
        background-color: var(--accent-purple);
        color: #FFFFFF;
        box-shadow: inset 0 0 20px rgba(255, 255, 255, 0.4),
                    0 8px 25px rgba(123, 97, 255, 0.5);
        transform: translateY(-3px);
    }
    .navbar-toggler {
        color: var(--accent-silver);
    }

    /* 分类页 Hero */
    .category-hero {
        padding-top: 8rem;
        padding-bottom: 6rem;
        background: radial-gradient(ellipse at top, rgba(123, 97, 255, 0.1) 0%, transparent 70%),
                    url('/assets/images/backpic/back-2.webp') no-repeat center center / cover;
        position: relative;
        overflow: hidden;
    }
    .category-hero::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: linear-gradient(180deg, rgba(26, 11, 46, 0.9) 0%, rgba(26, 11, 46, 0.7) 100%);
    }
    .category-hero .container {
        position: relative;
        z-index: 1;
    }
    .hero-abstract-icon {
        width: 160px;
        height: 160px;
        background: rgba(0, 243, 255, 0.1);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        border: 2px dashed var(--accent-cyan);
        margin: 0 auto;
    }
    .hero-abstract-icon i {
        font-size: 4rem;
        color: var(--accent-cyan);
    }

    /* 板块通用间距 */
    .section-padding {
        padding-top: 6rem;
        padding-bottom: 6rem;
    }
    .section-light-bg {
        background-color: rgba(255, 255, 255, 0.02);
        border-top: 1px solid var(--border-color);
        border-bottom: 1px solid var(--border-color);
    }

    /* 洞察卖点卡片 */
    .insight-card {
        background: var(--secondary-bg);
        backdrop-filter: blur(10px);
        border-radius: var(--border-radius-card);
        border: 1px solid var(--border-color);
        padding: 2.5rem;
        height: 100%;
        transition: var(--transition-smooth);
        box-shadow: var(--shadow-glow);
    }
    .insight-card:hover {
        transform: translateY(-10px);
        border-color: var(--accent-cyan);
        box-shadow: 0 20px 40px rgba(0, 243, 255, 0.2);
    }
    .insight-icon {
        width: 80px;
        height: 80px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-bottom: 1.5rem;
        background: linear-gradient(135deg, rgba(0, 243, 255, 0.2), rgba(123, 97, 255, 0.2));
        border: 2px solid var(--accent-cyan);
    }
    .insight-icon i {
        font-size: 2.5rem;
        color: var(--accent-cyan);
    }
    .insight-feature-list {
        list-style: none;
        padding-left: 0;
    }
    .insight-feature-list li {
        padding: 0.5rem 0;
        border-bottom: 1px dashed rgba(224, 231, 255, 0.1);
        display: flex;
        align-items: center;
    }
    .insight-feature-list li:last-child {
        border-bottom: none;
    }
    .insight-feature-list i {
        color: var(--accent-cyan);
        margin-right: 0.75rem;
        font-size: 0.875rem;
    }

    /* 适用场景网格 */
    .scene-card {
        background: rgba(255, 255, 255, 0.03);
        border-radius: var(--border-radius-card);
        border: 1px solid var(--border-color);
        padding: 2rem;
        text-align: center;
        height: 100%;
        transition: var(--transition-smooth);
    }
    .scene-card:hover {
        background: rgba(0, 243, 255, 0.05);
        border-color: var(--accent-cyan);
    }
    .scene-number {
        font-size: 3rem;
        font-weight: 900;
        color: transparent;
        background: linear-gradient(90deg, var(--accent-cyan), var(--accent-purple));
        -webkit-background-clip: text;
        background-clip: text;
        line-height: 1;
        margin-bottom: 1rem;
    }

    /* 流程时间线 */
    .process-timeline {
        position: relative;
        padding-left: 2rem;
    }
    .process-timeline::before {
        content: '';
        position: absolute;
        left: 0;
        top: 0;
        bottom: 0;
        width: 4px;
        background: linear-gradient(to bottom, var(--accent-cyan), var(--accent-purple));
        border-radius: 2px;
    }
    .process-step {
        position: relative;
        padding-bottom: 3rem;
        padding-left: 2.5rem;
    }
    .process-step:last-child {
        padding-bottom: 0;
    }
    .process-step::before {
        content: '';
        position: absolute;
        left: -2.6rem;
        top: 0;
        width: 20px;
        height: 20px;
        border-radius: 50%;
        background-color: var(--accent-cyan);
        border: 4px solid var(--primary-bg);
        box-shadow: 0 0 0 2px var(--accent-cyan);
    }
    .step-badge {
        display: inline-block;
        background: var(--accent-purple);
        color: white;
        padding: 0.25rem 1rem;
        border-radius: 1rem;
        font-size: 0.875rem;
        font-weight: 700;
        margin-bottom: 1rem;
    }

    /* FAQ 手风琴 */
    .faq-accordion .accordion-item {
        background-color: transparent;
        border: 1px solid var(--border-color);
        border-radius: var(--border-radius-base) !important;
        margin-bottom: 1rem;
        overflow: hidden;
    }
    .faq-accordion .accordion-button {
        background-color: rgba(255, 255, 255, 0.05);
        color: var(--text-primary);
        font-weight: 600;
        padding: 1.5rem;
        box-shadow: none;
    }
    .faq-accordion .accordion-button:not(.collapsed) {
        background-color: rgba(0, 243, 255, 0.1);
        color: var(--accent-cyan);
    }
    .faq-accordion .accordion-button::after {
        background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%2300F3FF'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
    }
    .faq-accordion .accordion-body {
        background-color: rgba(255, 255, 255, 0.03);
        color: var(--text-secondary);
        padding: 1.5rem;
        border-top: 1px solid var(--border-color);
    }

    /* 最终 CTA */
    .final-cta {
        background: radial-gradient(ellipse at center, rgba(123, 97, 255, 0, 0.15) 0%, transparent 70%),
                    linear-gradient(135deg, #1A0B2E 0%, #0F0521 100%);
        padding: 6rem 0;
        text-align: center;
        position: relative;
        overflow: hidden;
    }
    .final-cta::before {
        content: '';
        position: absolute;
        top: -50%;
        left: -50%;
        width: 200%;
        height: 200%;
        background: radial-gradient(circle, rgba(0, 243, 255, 0.05) 0%, transparent 70%);
        z-index: 0;
    }
    .final-cta .container {
        position: relative;
        z-index: 1;
    }
    .cta-title {
        font-size: 3rem;
        margin-bottom: 1.5rem;
    }

    /* 页脚 (沿用首页样式) */
    .site-footer {
        background-color: #0F0521;
        padding-top: 4rem;
        padding-bottom: 2rem;
        border-top: 1px solid rgba(255, 255, 255, 0.05);
    }
    .footer-logo {
        font-size: 2rem;
        font-weight: 700;
        color: var(--text-primary);
        margin-bottom: 1.5rem;
        display: flex;
        align-items: center;
    }
    .footer-links h5 {
        color: var(--accent-silver);
        margin-bottom: 1.5rem;
        font-size: 1.25rem;
    }
    .footer-links ul {
        list-style: none;
        padding-left: 0;
    }
    .footer-links ul li {
        margin-bottom: 0.75rem;
    }
    .footer-links a {
        color: var(--text-muted);
        transition: var(--transition-smooth);
    }
    .footer-links a:hover {
        color: var(--accent-cyan);
        padding-left: 5px;
    }
    .social-icons a {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 44px;
        height: 44px;
        background: rgba(255, 255, 255, 0.05);
        border-radius: 50%;
        margin-right: 1rem;
        color: var(--text-muted);
        font-size: 1.25rem;
        transition: var(--transition-smooth);
    }
    .social-icons a:hover {
        background: var(--accent-cyan);
        color: #0B0F29;
        transform: translateY(-3px);
        box-shadow: 0 5px 15px rgba(0, 243, 255, 0.4);
    }
    .copyright {
        margin-top: 4rem;
        padding-top: 2rem;
        border-top: 1px solid rgba(255, 255, 255, 0.05);
        text-align: center;
        color: var(--text-muted);
        font-size: 0.875rem;
    }

    /* 响应式设计 */
    @media (max-width: 992px) {
        h1 { font-size: 2.8rem; }
        h2 { font-size: 2.2rem; }
        .category-hero {
            padding-top: 6rem;
            padding-bottom: 4rem;
        }
        .nav-chips {
            flex-wrap: wrap;
            justify-content: center;
        }
    }
    @media (max-width: 768px) {
        h1 { font-size: 2.5rem; }
        h2 { font-size: 2rem; }
        .section-padding {
            padding-top: 4rem;
            padding-bottom: 4rem;
        }
        .insight-card, .scene-card {
            padding: 1.75rem;
        }
        .process-timeline {
            padding-left: 1.5rem;
        }
        .cta-title {
            font-size: 2.2rem;
        }
    }
    @media (max-width: 576px) {
        .container-custom {
            padding-left: 1rem;
            padding-right: 1rem;
        }
        h1 { font-size: 2rem; }
        .hero-abstract-icon {
            width: 120px;
            height: 120px;
        }
        .hero-abstract-icon i {
            font-size: 3rem;
        }
    }