:root {
            --sjb5-primary: #ff6600;
            --sjb5-primary-light: #ff8533;
            --sjb5-secondary: #1a1a2e;
            --sjb5-accent: #00d2ff;
            --sjb5-bg: #f8f9fa;
            --sjb5-text: #333333;
            --sjb5-text-light: #666666;
            --sjb5-white: #ffffff;
            --sjb5-gap: 8px;
            --sjb5-container-width: 1300px;
            --sjb5-radius: 16px;
            --sjb5-transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", -apple-system, sans-serif;
            background-color: var(--sjb5-bg);
            color: var(--sjb5-text);
            line-height: 1.6;
            overflow-x: hidden;
        }

        /* Typography */
        h1, h2, h3 {
            line-height: 1.2;
            word-break: keep-all;
            overflow-wrap: break-word;
            white-space: normal;
        }

        p {
            word-break: break-word;
            overflow-wrap: break-word;
            line-height: 1.8;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: var(--sjb5-transition);
        }

        /* Navigation */
        .sjb5-nav-wrapper {
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.8);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            padding: 16px 0;
        }

        .sjb5-nav-container {
            max-width: var(--sjb5-container-width);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
        }

        .sjb5-logo {
            flex: 0 0 auto;
            min-width: 0;
        }

        .sjb5-logo img {
            height: 32px;
            width: auto;
            display: block;
        }

        .sjb5-menu {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            list-style: none;
            min-width: 0;
        }

        .sjb5-menu li a {
            font-weight: 500;
            font-size: 15px;
            color: var(--sjb5-text);
        }

        .sjb5-menu li a:hover {
            color: var(--sjb5-primary);
        }

        /* Hero Section - Asymmetric Floating Layout */
        .sjb5-hero {
            padding: 160px 0 96px;
            background: radial-gradient(circle at 90% 10%, rgba(255, 102, 0, 0.08) 0%, transparent 40%),
                        radial-gradient(circle at 10% 90%, rgba(0, 210, 255, 0.08) 0%, transparent 40%);
            position: relative;
            overflow: hidden;
        }

        .sjb5-hero-inner {
            max-width: var(--sjb5-container-width);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 48px;
        }

        .sjb5-hero-content {
            flex: 1 1 500px;
            min-width: 0;
        }

        .sjb5-hero-title {
            font-size: clamp(2.5rem, 5vw + 1rem, 4.5rem);
            font-weight: 800;
            color: var(--sjb5-secondary);
            margin-bottom: 24px;
            letter-spacing: -1px;
        }

        .sjb5-hero-subtitle {
            font-size: clamp(1.1rem, 1vw + 0.5rem, 1.4rem);
            color: var(--sjb5-text-light);
            margin-bottom: 40px;
            max-width: 600px;
        }

        .sjb5-hero-visual {
            flex: 1 1 400px;
            min-width: 0;
            position: relative;
        }

        .sjb5-hero-card {
            background: var(--sjb5-white);
            border-radius: var(--sjb5-radius);
            padding: 32px;
            box-shadow: 0 24px 48px rgba(0,0,0,0.06);
            border: 1px solid rgba(255, 102, 0, 0.1);
            transform: perspective(1000px) rotateY(-5deg) rotateX(5deg);
            transition: var(--sjb5-transition);
        }

        .sjb5-hero-card:hover {
            transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
        }

        .sjb5-btn-primary {
            display: inline-block;
            background: linear-gradient(135deg, var(--sjb5-primary), #ff8c00);
            color: white;
            padding: 18px 48px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 18px;
            box-shadow: 0 10px 20px rgba(255, 102, 0, 0.2);
        }

        .sjb5-btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 30px rgba(255, 102, 0, 0.3);
        }

        /* AI Inspiration Center Section */
        .sjb5-ai-section {
            padding: 96px 0;
            background: var(--sjb5-white);
        }

        .sjb5-section-header {
            max-width: 800px;
            margin: 0 auto 64px;
            text-align: center;
            padding: 0 24px;
        }

        .sjb5-section-badge {
            display: inline-block;
            background: rgba(255, 102, 0, 0.1);
            color: var(--sjb5-primary);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .sjb5-section-title {
            font-size: clamp(2rem, 3vw, 2.5rem);
            margin-bottom: 16px;
            color: var(--sjb5-secondary);
        }

        .sjb5-ai-grid {
            max-width: var(--sjb5-container-width);
            margin: 0 auto;
            padding: 0 24px;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
        }

        .sjb5-ai-card {
            background: var(--sjb5-bg);
            padding: 40px;
            border-radius: var(--sjb5-radius);
            transition: var(--sjb5-transition);
            border: 1px solid transparent;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .sjb5-ai-card:hover {
            background: var(--sjb5-white);
            border-color: var(--sjb5-primary);
            box-shadow: 0 20px 40px rgba(0,0,0,0.05);
            transform: translateY(-8px);
        }

        .sjb5-ai-icon {
            font-size: 40px;
            margin-bottom: 24px;
            height: 60px;
            width: 60px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--sjb5-white);
            border-radius: 12px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.05);
        }

        .sjb5-ai-card h3 {
            font-size: 22px;
            margin-bottom: 12px;
        }

        .sjb5-ai-card p {
            color: var(--sjb5-text-light);
            font-size: 15px;
            margin-bottom: 24px;
        }

        .sjb5-ai-action {
            font-size: 14px;
            font-weight: 600;
            color: var(--sjb5-primary);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        /* Visual Semantic Layer Section */
        .sjb5-visual-section {
            padding: 96px 0;
            background: var(--sjb5-secondary);
            color: var(--sjb5-white);
        }

        .sjb5-visual-container {
            max-width: var(--sjb5-container-width);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
            align-items: center;
        }

        .sjb5-visual-text {
            flex: 1 1 400px;
            min-width: 0;
        }

        .sjb5-visual-gallery {
            flex: 1 1 500px;
            min-width: 0;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }

        .sjb5-gallery-item {
            background: rgba(255,255,255,0.05);
            padding: 24px;
            border-radius: var(--sjb5-radius);
            border: 1px solid rgba(255,255,255,0.1);
            transition: var(--sjb5-transition);
        }

        .sjb5-gallery-item:hover {
            background: rgba(255,255,255,0.1);
            transform: scale(1.05);
        }

        .sjb5-gallery-item h4 {
            margin-top: 12px;
            font-size: 16px;
        }

        /* Dynamic Content Section */
        .sjb5-news-section {
            padding: 96px 0;
            background: var(--sjb5-bg);
        }

        .sjb5-news-grid {
            max-width: var(--sjb5-container-width);
            margin: 0 auto;
            padding: 0 24px;
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 24px;
        }

        .sjb5-news-item {
            background: var(--sjb5-white);
            padding: 24px;
            border-radius: 12px;
            border-bottom: 3px solid transparent;
            transition: var(--sjb5-transition);
        }

        .sjb5-news-item:hover {
            border-bottom-color: var(--sjb5-primary);
            box-shadow: 0 10px 20px rgba(0,0,0,0.03);
        }

        /* Footer */
        .sjb5-footer {
            background: var(--sjb5-white);
            padding: 80px 0 40px;
            border-top: 1px solid #eee;
        }

        .sjb5-footer-container {
            max-width: var(--sjb5-container-width);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 48px;
        }

        .sjb5-footer-brand {
            flex: 1 1 300px;
            min-width: 0;
        }

        .sjb5-footer-brand-name {
            font-size: 24px;
            font-weight: 800;
            color: var(--sjb5-primary);
            margin-bottom: 16px;
        }

        .sjb5-footer-links {
            flex: 2 1 600px;
            min-width: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
        }

        .sjb5-footer-column h4 {
            margin-bottom: 20px;
            font-size: 16px;
        }

        .sjb5-footer-column ul {
            list-style: none;
        }

        .sjb5-footer-column ul li {
            margin-bottom: 10px;
        }

        .sjb5-footer-column ul li a {
            color: var(--sjb5-text-light);
            font-size: 14px;
        }

        .sjb5-footer-bottom {
            max-width: var(--sjb5-container-width);
            margin: 40px auto 0;
            padding: 24px;
            text-align: center;
            border-top: 1px solid #f0f0f0;
            color: #999;
            font-size: 13px;
        }

        /* Responsive */
        @media (max-width: 768px) {
            .sjb5-menu {
                display: none; /* In a real project, add a mobile toggle */
            }
            .sjb5-hero-inner {
                flex-direction: column;
                text-align: center;
            }
            .sjb5-hero-content {
                flex: 1 1 100%;
            }
            .sjb5-hero-visual {
                flex: 1 1 100%;
                width: 100%;
            }
            .sjb5-visual-gallery {
                grid-template-columns: 1fr;
            }
        }