/* roulang page: index */
/* 定义设计变量 */
        :root {
            --color-primary-deep: #0A1A2F; /* 劲夜蓝 */
            --color-primary-dark: #0D1B2A;
            --color-accent-orange: #FF6B35; /* 能量橙 */
            --color-accent-orange-light: #FF8C42;
            --color-tech-gray: #8A8A8A; /* 科技银灰 */
            --color-tech-gray-light: #E0E0E0;
            --color-text-primary: #FFFFFF;
            --color-text-secondary: #F5F5F5;
            --color-text-muted: rgba(255, 255, 255, 0.6);
            --color-border: rgba(255, 255, 255, 0.1);
            --color-card-bg: rgba(255, 255, 255, 0.05);
            --radius-default: 12px;
            --radius-button: 8px;
            --shadow-glow-orange: 0 0 15px rgba(255, 107, 53, 0.7);
            --shadow-glow-blue: 0 8px 32px rgba(10, 26, 47, 0.5);
            --transition-default: all 0.3s ease;
        }

        /* 基础 Reset */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
            background-color: var(--color-primary-deep);
            color: var(--color-text-primary);
            line-height: 1.6;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition-default);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* 主布局 - 左侧导航 + 右侧内容 */
        .main-layout {
            display: flex;
            min-height: 100vh;
        }

        /* 左侧导航 - 桌面端 */
        .side-nav {
            width: 80px;
            background-color: rgba(5, 12, 22, 0.9);
            backdrop-filter: blur(10px);
            border-right: 1px solid var(--color-border);
            display: flex;
            flex-direction: column;
            align-items: center;
            padding: 2rem 0;
            position: fixed;
            left: 0;
            top: 0;
            bottom: 0;
            z-index: 100;
        }

        .side-nav .logo {
            margin-bottom: 3rem;
            text-align: center;
        }

        .side-nav .logo h1 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-text-primary);
            writing-mode: vertical-rl;
            text-orientation: mixed;
            margin: 0;
            letter-spacing: 0.2rem;
        }

        .side-nav .logo .abbr {
            display: block;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--color-accent-orange);
            margin-bottom: 0.5rem;
        }

        .nav-links {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 2rem;
            width: 100%;
            align-items: center;
        }

        .nav-links li {
            width: 100%;
            text-align: center;
        }

        .nav-links a {
            display: flex;
            flex-direction: column;
            align-items: center;
            padding: 0.8rem 0;
            font-size: 0.75rem;
            color: var(--color-text-muted);
            position: relative;
        }

        .nav-links a i {
            font-size: 1.3rem;
            margin-bottom: 0.3rem;
        }

        .nav-links a:hover {
            color: var(--color-text-secondary);
        }

        .nav-links a.active {
            color: var(--color-accent-orange);
        }

        .nav-links a.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 4px;
            background: linear-gradient(to bottom, var(--color-accent-orange), var(--color-accent-orange-light));
            border-radius: 0 4px 4px 0;
        }

        .mobile-nav-header {
            display: none;
        }

        /* 右侧主内容区 */
        .main-content {
            flex: 1;
            margin-left: 80px;
            width: calc(100% - 80px);
        }

        /* 按钮样式 */
        .btn {
            display: inline-block;
            padding: 0.9rem 2rem;
            border-radius: var(--radius-button);
            font-weight: 600;
            font-size: 1rem;
            text-align: center;
            cursor: pointer;
            border: none;
            transition: var(--transition-default);
            outline: none;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--color-accent-orange), var(--color-accent-orange-light));
            color: white;
            box-shadow: var(--shadow-glow-orange);
        }

        .btn-primary:hover, .btn-primary:focus {
            transform: translateY(-3px);
            box-shadow: 0 0 25px rgba(255, 107, 53, 0.9);
        }

        .btn-secondary {
            background: transparent;
            color: var(--color-text-primary);
            border: 2px solid var(--color-text-primary);
        }

        .btn-secondary:hover {
            background-color: rgba(255, 255, 255, 0.1);
            border-color: var(--color-accent-orange-light);
        }

        /* Hero 首屏 */
        .hero-section {
            min-height: 95vh;
            background: linear-gradient(rgba(10, 26, 47, 0.85), rgba(5, 12, 22, 0.9)), url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            display: flex;
            align-items: center;
            padding: 4rem 0;
        }

        .hero-content {
            max-width: 800px;
            margin: 0 auto;
            text-align: center;
            padding: 2rem;
        }

        .hero-content h1 {
            font-size: 3.5rem;
            font-weight: 800;
            line-height: 1.1;
            margin-bottom: 1.5rem;
            background: linear-gradient(to right, #fff, var(--color-tech-gray-light));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }

        .hero-content p {
            font-size: 1.3rem;
            color: var(--color-text-secondary);
            margin-bottom: 2.5rem;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }

        /* 痛点陈述区 */
        .pain-points-section {
            padding: 6rem 0;
            background-color: rgba(13, 27, 42, 0.7);
        }

        .section-title {
            text-align: center;
            margin-bottom: 4rem;
        }

        .section-title h2 {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--color-text-primary);
        }

        .section-title p {
            font-size: 1.1rem;
            color: var(--color-text-muted);
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }

        .pain-points-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }

        .pain-card {
            background: var(--color-card-bg);
            backdrop-filter: blur(10px);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-default);
            padding: 2rem;
            text-align: center;
            box-shadow: var(--shadow-glow-blue);
            transition: var(--transition-default);
        }

        .pain-card:hover {
            transform: translateY(-5px);
            border-color: rgba(255, 107, 53, 0.3);
        }

        .pain-card i {
            font-size: 2.5rem;
            color: var(--color-accent-orange);
            margin-bottom: 1.5rem;
        }

        .pain-card h3 {
            font-size: 1.5rem;
            font-weight: 600;
            margin-bottom: 1rem;
        }

        .pain-card p {
            color: var(--color-text-muted);
            font-size: 0.95rem;
        }

        /* 解决方案展示区 */
        .solutions-section {
            padding: 6rem 0;
        }

        .solution-card {
            background: rgba(20, 35, 55, 0.7);
            border-radius: var(--radius-default);
            overflow: hidden;
            margin-bottom: 4rem;
            display: grid;
            grid-template-columns: 1fr 1fr;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-glow-blue);
        }

        .solution-card:nth-child(even) .solution-image {
            order: 2;
        }

        .solution-card:nth-child(even) .solution-text {
            order: 1;
        }

        .solution-image {
            min-height: 350px;
            background-size: cover;
            background-position: center;
        }

        .solution-text {
            padding: 3rem;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .solution-text h3 {
            font-size: 1.9rem;
            font-weight: 700;
            margin-bottom: 1.2rem;
            color: var(--color-text-primary);
        }

        .solution-text p {
            color: var(--color-text-muted);
            margin-bottom: 1.8rem;
            font-size: 1.05rem;
        }

        /* 数据展示区 */
        .stats-section {
            padding: 6rem 0;
            background: linear-gradient(135deg, rgba(10, 26, 47, 0.9), rgba(20, 40, 70, 0.9));
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .stats-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(255, 107, 53, 0.05) 0%, transparent 70%);
            z-index: 0;
        }

        .stats-container {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 3rem;
        }

        .stat-item h3 {
            font-size: 3.5rem;
            font-weight: 800;
            color: var(--color-accent-orange);
            margin-bottom: 0.5rem;
            line-height: 1;
        }

        .stat-item p {
            font-size: 1.1rem;
            color: var(--color-text-secondary);
        }

        /* 证言区 */
        .testimonials-section {
            padding: 6rem 0;
        }

        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2.5rem;
        }

        .testimonial-card {
            background: var(--color-card-bg);
            backdrop-filter: blur(10px);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-default);
            padding: 2.5rem;
            box-shadow: var(--shadow-glow-blue);
            position: relative;
        }

        .testimonial-card::before {
            content: '"';
            position: absolute;
            top: 1.5rem;
            left: 1.5rem;
            font-size: 4rem;
            color: var(--color-accent-orange);
            opacity: 0.3;
            font-family: serif;
            line-height: 1;
        }

        .testimonial-card p {
            font-style: italic;
            color: var(--color-text-secondary);
            margin-bottom: 1.8rem;
            font-size: 1.05rem;
            position: relative;
            z-index: 1;
        }

        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .author-avatar {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background-color: var(--color-tech-gray);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            color: var(--color-primary-dark);
        }

        .author-info h4 {
            font-size: 1.1rem;
            margin-bottom: 0.2rem;
        }

        .author-info span {
            font-size: 0.9rem;
            color: var(--color-tech-gray);
        }

        /* 最终 CTA */
        .final-cta-section {
            padding: 6rem 0;
            background: linear-gradient(to right, rgba(10, 26, 47, 0.95), rgba(20, 40, 70, 0.95));
            text-align: center;
        }

        .cta-container {
            max-width: 800px;
            margin: 0 auto;
            padding: 3rem;
            background: rgba(255, 255, 255, 0.03);
            border-radius: var(--radius-default);
            border: 1px solid var(--color-border);
        }

        .cta-container h2 {
            font-size: 2.2rem;
            margin-bottom: 1.5rem;
        }

        .cta-container p {
            color: var(--color-text-muted);
            margin-bottom: 2.5rem;
            font-size: 1.1rem;
        }

        .cta-form {
            display: flex;
            gap: 1rem;
            max-width: 500px;
            margin: 0 auto 2rem;
        }

        .cta-form input {
            flex: 1;
            padding: 1rem 1.5rem;
            border-radius: var(--radius-button);
            border: 1px solid var(--color-border);
            background: rgba(255, 255, 255, 0.07);
            color: var(--color-text-primary);
            font-size: 1rem;
            outline: none;
            transition: var(--transition-default);
        }

        .cta-form input:focus {
            border-color: var(--color-accent-orange);
            box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.2);
        }

        /* 页脚 */
        .site-footer {
            background-color: rgba(5, 12, 22, 0.95);
            border-top: 1px solid var(--color-border);
            padding: 4rem 0 2rem;
        }

        .footer-grid {
            displaygrid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
            margin-bottom: 3rem;
        }

        .footer-brand h3 {
            font-size: 1.8rem;
            color: var(--color-text-primary);
            margin-bottom: 1rem;
        }

        .footer-brand p {
            color: var(--color-text-muted);
            font-size: 0.95rem;
        }

        .footer-links h4,
        .footer-contact h4 {
            font-size: 1.2rem;
            margin-bottom: 1.5rem;
            color: var(--color-text-primary);
        }

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

        .footer-links li {
            margin-bottom: 0.8rem;
        }

        .footer-links a {
            color: var(--color-text-muted);
        }

        .footer-links a:hover {
            color: var(--color-accent-orange);
            padding-left: 5px;
        }

        .footer-contact p {
            color: var(--color-text-muted);
            margin-bottom: 0.8rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .footer-contact i {
            color: var(--color-accent-orange);
            width: 20px;
        }

        .social-links {
            display: flex;
            gap: 1rem;
            margin-top: 1.5rem;
        }

        .social-links a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: rgba(255, 255, 255, 0.05);
            color: var(--color-text-muted);
        }

        .social-links a:hover {
            background-color: var(--color-accent-orange);
            color: white;
            transform: translateY(-3px);
        }

        .footer-bottom {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            color: var(--color-tech-gray);
            font-size: 0.875rem;
        }

        /* 移动端响应式 */
        @media (max-width: 1023px) {
            .solution-card {
                grid-template-columns: 1fr;
            }
            .solution-image {
                min-height: 250px;
                order: 1 !important;
            }
            .solution-text {
                order: 2 !important;
            }
        }

        @media (max-width: 767px) {
            /* 隐藏左侧导航，改为顶部导航 */
            .side-nav {
                display: none;
            }

            .mobile-nav-header {
                display: block;
                position: fixed;
                top: 0;
                left: 0;
                right: 0;
                background-color: rgba(5, 12, 22, 0.95);
                backdrop-filter: blur(10px);
                border-bottom: 1px solid var(--color-border);
                z-index: 200;
                padding: 1rem 20px;
            }

            .mobile-nav-container {
                display: flex;
                justify-content: space-between;
                align-items: center;
            }

            .mobile-logo {
                display: flex;
                align-items: center;
                gap: 0.5rem;
                font-weight: 700;
                font-size: 1.3rem;
                color: var(--color-text-primary);
            }

            .mobile-logo .abbr {
                color: var(--color-accent-orange);
            }

            .hamburger-menu {
                background: none;
                border: none;
                color: var(--color-text-primary);
                font-size: 1.8rem;
                cursor: pointer;
            }

            .mobile-nav-overlay {
                position: fixed;
                top: 0;
                left: 0;
                right: 0;
                bottom: 0;
                background-color: rgba(0, 0, 0, 0.9);
                z-index: 199;
                display: none;
                flex-direction: column;
                justify-content: center;
                align-items: center;
            }

            .mobile-nav-overlay.active {
                display: flex;
            }

            .mobile-nav-links {
                list-style: none;
                padding: 0;
                margin: 0;
                text-align: center;
            }

            .mobile-nav-links li {
                margin-bottom: 2rem;
            }

            .mobile-nav-links a {
                font-size: 1.8rem;
                color: var(--color-text-primary);
                display: flex;
                flex-direction: column;
                align-items: center;
                gap: 0.5rem;
            }

            .mobile-nav-links a.active {
                color: var(--color-accent-orange);
            }

            .mobile-nav-close {
                position: absolute;
                top: 2rem;
                right: 2rem;
                background: none;
                border: none;
                color: var(--color-text-primary);
                font-size: 2rem;
                cursor: pointer;
            }

            .main-content {
                margin-left: 0;
                width: 100%;
                padding-top: 70px; /* 为顶部固定导航留出空间 */
            }

            .hero-content h1 {
                font-size: 2.5rem;
            }

            .hero-content p {
                font-size: 1.1rem;
            }

            .cta-form {
                flex-direction: column;
            }

            .stats-container {
                grid-template-columns: repeat(2, 1fr);
            }

            .stat-item h3 {
                font-size: 2.8rem;
            }
        }

        @media (max-width: 520px) {
            .hero-content h1 {
                font-size: 2rem;
            }

            .section-title h2 {
                font-size: 2rem;
            }

            .stats-container {
                grid-template-columns: 1fr;
                gap: 2rem;
            }

            .testimonials-grid,
            .pain-points-grid {
                grid-template-columns: 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                text-align: center;
            }

            .footer-contact p {
                justify-content: center;
            }

            .social-links {
                justify-content: center;
            }
        }

/* roulang page: category1 */
:root {
            --primary-dark: #0A1A2F; /* 劲夜蓝 */
            --primary-accent: #FF6B35; /* 能量橙 */
            --primary-light: #FF8C42;
            --tech-gray: #8A8A8A; /* 科技银灰 */
            --tech-light: #E0E0E0;
            --text-primary: #FFFFFF;
            --text-secondary: #F5F5F5;
            --bg-card: rgba(255, 255, 255, 0.05);
            --border-light: rgba(255, 255, 255, 0.1);
            --radius-card: 12px;
            --radius-btn: 8px;
            --shadow-glow: 0 8px 32px rgba(10, 26, 47, 0.5);
            --shadow-glow-orange: 0 0 15px rgba(255, 107, 53, 0.7);
            --spacing-section: 6rem;
            --spacing-card: 2rem;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
            background-color: var(--primary-dark);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
        }
        .grid-container {
            max-width: 1200px;
            width: 100%;
            margin: 0 auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }
        .hero h1,
        .section-title h2 {
            font-weight: 700;
            line-height: 1.2;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul {
            list-style: none;
            padding-left: 0;
        }
        button,
        .button {
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }
        input:focus,
        button:focus,
        .button:focus {
            outline: 2px solid var(--primary-accent);
            outline-offset: 2px;
        }

        /* 左侧导航 - Desktop */
        .site-wrapper {
            display: flex;
            min-height: 100vh;
        }
        .side-nav {
            width: 80px;
            background-color: rgba(10, 26, 47, 0.95);
            border-right: 1px solid var(--border-light);
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            display: flex;
            flex-direction: column;
            align-items: center;
            padding-top: 1.5rem;
            z-index: 100;
            backdrop-filter: blur(10px);
        }
        .side-nav .logo {
            text-align: center;
            margin-bottom: 3rem;
        }
        .side-nav .logo .abbr {
            font-size: 1.5rem;
            font-weight: 900;
            background: linear-gradient(to right, var(--primary-accent), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            display: block;
            margin-bottom: 0.25rem;
        }
        .side-nav .logo h1 {
            font-size: 0;
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }
        .nav-links {
            flex-grow: 1;
            width: 100%;
        }
        .nav-links li {
            width: 100%;
            margin-bottom: 0.5rem;
        }
        .nav-links a {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 1rem 0;
            color: var(--tech-light);
            font-size: 0.75rem;
            position: relative;
        }
        .nav-links a i {
            font-size: 1.25rem;
            margin-bottom: 0.5rem;
        }
        .nav-links a:hover {
            color: var(--text-primary);
        }
        .nav-links a.active {
            color: var(--primary-accent);
        }
        .nav-links a.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 40%;
            background-color: var(--primary-accent);
            border-radius: 0 2px 2px 0;
        }

        /* 主内容区 */
        .main-content {
            flex: 1;
            margin-left: 80px;
            width: calc(100% - 80px);
        }

        /* 移动端顶部导航 */
        .mobile-top-bar {
            display: none;
            background-color: rgba(10, 26, 47, 0.98);
            border-bottom: 1px solid var(--border-light);
            padding: 0.75rem 1rem;
            position: sticky;
            top: 0;
            z-index: 100;
            backdrop-filter: blur(10px);
        }
        .mobile-top-bar .logo-mobile {
            display: flex;
            align-items: center;
        }
        .mobile-top-bar .logo-mobile .abbr {
            font-size: 1.5rem;
            font-weight: 900;
            background: linear-gradient(to right, var(--primary-accent), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-right: 0.5rem;
        }
        .mobile-top-bar .logo-mobile h1 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--text-primary);
        }
        .mobile-menu-toggle {
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.5rem;
        }
        .mobile-nav-overlay {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-color: rgba(0, 0, 0, 0.9);
            z-index: 999;
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
        }
        .mobile-nav-overlay.active {
            display: flex;
        }
        .mobile-nav-links {
            text-align: center;
        }
        .mobile-nav-links li {
            margin-bottom: 2rem;
        }
        .mobile-nav-links a {
            font-size: 1.5rem;
            color: var(--text-primary);
            padding: 0.5rem;
        }
        .mobile-nav-links a.active {
            color: var(--primary-accent);
            position: relative;
        }
        .mobile-nav-links a.active::after {
            content: '●';
            color: var(--primary-accent);
            position: absolute;
            right: -1.5rem;
            top: 50%;
            transform: translateY(-50%);
            font-size: 0.8rem;
        }
        .mobile-nav-close {
            position: absolute;
            top: 2rem;
            right: 2rem;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 2rem;
        }

        /* Category Hero 分类页首屏 */
        .category-hero {
            background: linear-gradient(rgba(10, 26, 47, 0.85), rgba(10, 26, 47, 0.95)), url('/assets/images/backpic/back-2.webp') no-repeat center center / cover;
            padding: var(--spacing-section) 0;
            border-bottom: 1px solid var(--border-light);
            position: relative;
            overflow: hidden;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 50px;
            background: linear-gradient(to bottom, transparent, var(--primary-dark));
        }
        .category-hero h1 {
            font-size: 3rem;
            margin-bottom: 1rem;
            color: var(--text-primary);
        }
        .category-hero .subtitle {
            font-size: 1.25rem;
            color: var(--text-secondary);
            max-width: 700px;
            margin-bottom: 2.5rem;
        }
        .filter-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
            margin-bottom: 2rem;
        }
        .filter-tag {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: 20px;
            padding: 0.5rem 1.25rem;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all 0.3s ease;
            backdrop-filter: blur(5px);
        }
        .filter-tag:hover {
            border-color: var(--primary-accent);
            color: var(--primary-accent);
        }
        .filter-tag.active {
            background-color: var(--primary-accent);
            color: var(--text-primary);
            border-color: var(--primary-accent);
            font-weight: 600;
        }

        /* 内容列表区 */
        .content-section {
            padding: var(--spacing-section) 0;
        }
        .section-title {
            margin-bottom: 3rem;
        }
        .section-title h2 {
            font-size: 2.25rem;
            position: relative;
            display: inline-block;
            padding-bottom: 0.75rem;
        }
        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 60px;
            height: 4px;
            background: linear-gradient(to right, var(--primary-accent), var(--primary-light));
            border-radius: 2px;
        }

        .magazine-layout {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: var(--spacing-card);
        }

        .event-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            overflow: hidden;
            backdrop-filter: blur(10px);
            box-shadow: var(--shadow-glow);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            display: flex;
            flex-direction: column;
        }
        .event-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 40px rgba(10, 26, 47, 0.7), var(--shadow-glow-orange);
        }
        .event-card-img {
            height: 180px;
            overflow: hidden;
        }
        .event-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .event-card:hover .event-card-img img {
            transform: scale(1.05);
        }
        .event-card-badge {
            position: absolute;
            top: 1rem;
            left: 1rem;
            background-color: var(--primary-accent);
            color: var(--text-primary);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.25rem 0.75rem;
            border-radius: 4px;
            z-index: 2;
        }
        .event-card-content {
            padding: 1.5rem;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }
        .event-card-content h3 {
            font-size: 1.5rem;
            font-weight: 600;
            margin-bottom: 0.75rem;
            line-height: 1.3;
            color: var(--text-primary);
        }
        .event-card-excerpt {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.6;
            margin-bottom: 1.5rem;
            flex-grow: 1;
        }
        .event-card-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.875rem;
            color: var(--tech-gray);
            border-top: 1px solid var(--border-light);
            padding-top: 1rem;
        }
        .event-card-link {
            color: var(--primary-accent);
            font-weight: 600;
            font-size: 0.95rem;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            margin-top: 0.5rem;
        }
        .event-card-link:hover {
            color: var(--primary-light);
        }

        /* 侧边栏 (桌面端) */
        .sidebar-section {
            padding-left: 3rem;
        }
        .sidebar-widget {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            padding: 1.5rem;
            margin-bottom: var(--spacing-card);
            backdrop-filter: blur(10px);
        }
        .sidebar-widget h3 {
            font-size: 1.3rem;
            margin-bottom: 1.5rem;
            color: var(--text-primary);
            padding-bottom: 0.5rem;
            border-bottom: 1px solid var(--border-light);
        }
        .spotlight-item {
            display: flex;
            align-items: center;
            margin-bottom: 1.25rem;
            padding-bottom: 1.25rem;
            border-bottom: 1px solid rgba(255,255,255,0.05);
        }
        .spotlight-item:last-child {
            margin-bottom: 0;
            padding-bottom: 0;
            border-bottom: none;
        }
        .spotlight-rank {
            font-size: 1.5rem;
            font-weight: 700;
            background: linear-gradient(to bottom, var(--primary-accent), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-right: 1rem;
            min-width: 30px;
        }
        .spotlight-content h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 0.25rem;
            line-height: 1.3;
        }
        .sidebar-cta {
            text-align: center;
            background: linear-gradient(135deg, rgba(255,107,53,0.1), rgba(10,26,47,0.5));
            border: 1px solid rgba(255,107,53,0.3);
        }

        /* 特色CTA */
        .feature-cta {
            background: linear-gradient(rgba(10,26,47,0.9), rgba(10,26,47,0.95)), url('/assets/images/backpic/back-3.webp') no-repeat center center / cover;
            padding: var(--spacing-section) 0;
            border-radius: var(--radius-card);
            margin: var(--spacing-section) 0;
            text-align: center;
            border: 1px solid var(--border-light);
        }
        .feature-cta h2 {
            font-size: 2.5rem;
            margin-bottom: 1rem;
        }
        .feature-cta p {
            font-size: 1.2rem;
            color: var(--text-secondary);
            max-width: 700px;
            margin: 0 auto 2.5rem;
        }

        /* 按钮样式 */
        .btn-primary {
            display: inline-block;
            background: linear-gradient(to right, var(--primary-accent), var(--primary-light));
            color: var(--text-primary);
            font-weight: 600;
            padding: 1rem 2.5rem;
            border-radius: var(--radius-btn);
            border: none;
            box-shadow: var(--shadow-glow-orange);
            position: relative;
            overflow: hidden;
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 25px rgba(255, 107, 53, 0.9);
        }
        .btn-secondary {
            display: inline-block;
            background: transparent;
            color: var(--text-primary);
            font-weight: 600;
            padding: 1rem 2.5rem;
            border-radius: var(--radius-btn);
            border: 2px solid var(--text-primary);
        }
        .btn-secondary:hover {
            background-color: rgba(255, 255, 255, 0.1);
            border-color: var(--primary-accent);
            color: var(--primary-accent);
        }

        /* 页脚样式 */
        .site-footer {
            background-color: rgba(5, 12, 22, 0.98);
            border-top: 1px solid var(--border-light);
            padding: var(--spacing-section) 0 2rem;
            margin-top: var(--spacing-section);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 3rem;
            margin-bottom: 3rem;
        }
        .footer-brand h3 {
            font-size: 1.8rem;
            margin-bottom: 1rem;
            color: var(--text-primary);
        }
        .footer-brand p {
            color: var(--tech-gray);
            margin-bottom: 1.5rem;
            line-height: 1.7;
        }
        .social-links {
            display: flex;
            gap: 1rem;
        }
        .social-links a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background-color: rgba(255, 255, 255, 0.05);
            border-radius: 50%;
            font-size: 1.2rem;
            color: var(--tech-light);
            transition: all 0.3s ease;
        }
        .social-links a:hover {
            background-color: var(--primary-accent);
            color: var(--text-primary);
            transform: translateY(-3px);
        }
        .footer-links h4,
        .footer-contact h4 {
            font-size: 1.2rem;
            margin-bottom: 1.5rem;
            color: var(--text-primary);
        }
        .footer-links ul li {
            margin-bottom: 0.75rem;
        }
        .footer-links a {
            color: var(--tech-gray);
        }
        .footer-links a:hover {
            color: var(--primary-accent);
            padding-left: 0.5rem;
        }
        .footer-contact p {
            color: var(--tech-gray);
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
        }
        .footer-contact i {
            color: var(--primary-accent);
            margin-right: 0.75rem;
            width: 20px;
        }
        .footer-bottom {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            color: var(--tech-gray);
            font-size: 0.9rem;
        }

        /* 加载更多 */
        .load-more-container {
            text-align: center;
            margin-top: 4rem;
        }
        #loadMoreBtn {
            background: transparent;
            border: 2px solid var(--primary-accent);
            color: var(--primary-accent);
            padding: 1rem 3rem;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 1rem;
        }
        #loadMoreBtn:hover {
            background-color: rgba(255, 107, 53, 0.1);
        }

        /* 响应式设计 */
        @media (max-width: 1024px) {
            :root {
                --spacing-section: 4rem;
            }
            .grid-container {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
            .category-hero h1 {
                font-size: 2.5rem;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .sidebar-section {
                padding-left: 0;
                margin-top: var(--spacing-section);
            }
        }

        @media (max-width: 768px) {
            .side-nav {
                display: none;
            }
            .mobile-top-bar {
                display: flex;
                justify-content: space-between;
                align-items: center;
            }
            .main-content {
                margin-left: 0;
                width: 100%;
            }
            .category-hero {
                padding: 3rem 0;
            }
            .category-hero h1 {
                font-size: 2rem;
            }
            .category-hero .subtitle {
                font-size: 1.1rem;
            }
            .section-title h2 {
                font-size: 1.8rem;
            }
            .magazine-layout {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .feature-cta h2 {
                font-size: 2rem;
            }
        }

        @media (max-width: 520px) {
            .category-hero h1 {
                font-size: 1.8rem;
            }
            .filter-tags {
                justify-content: center;
            }
            .feature-cta {
                padding: 3rem 1rem;
            }
            .feature-cta h2 {
                font-size: 1.8rem;
            }
            .feature-cta p {
                font-size: 1rem;
            }
        }