/* roulang page: index */
:root {
            --brand-dark: #0F1B29;
            --brand-darker: #0B111A;
            --brand-green: #0A8F6A;
            --brand-cyan: #22D3EE;
            --brand-purple: #5B42F5;
            --bg-light: #F6F8FB;
            --bg-card: #FFFFFF;
            --text-main: #1E293B;
            --text-muted: #64748B;
            --text-light: #94A3B8;
            --border-color: #E2E8F0;
            --border-dark: #1E2D3D;
            --radius-md: 12px;
            --radius-xl: 20px;
            --radius-2xl: 24px;
            --shadow-sm: 0 4px 6px -1px rgba(15, 27, 41, 0.05);
            --shadow-card: 0 10px 30px -5px rgba(15, 27, 41, 0.06);
            --shadow-hover: 0 20px 35px -10px rgba(10, 143, 106, 0.15);
            --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--bg-light);
            color: var(--text-main);
            line-height: 1.65;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
        }

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

        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 顶部导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: rgba(15, 27, 41, 0.95);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-dark);
        }

        .header-top {
            background-color: #080D14;
            color: var(--text-light);
            font-size: 13px;
            padding: 6px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        .header-top-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .spec-tags {
            display: flex;
            gap: 16px;
        }

        .spec-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .nav-main {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-weight: 700;
            font-size: 20px;
            color: #FFFFFF;
            letter-spacing: -0.5px;
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--brand-green), var(--brand-cyan));
            border-radius: 8px;
            display: grid;
            place-items: center;
            color: #FFFFFF;
            font-weight: 900;
            font-size: 18px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
        }

        .nav-links a {
            color: #CBD5E1;
            font-size: 15px;
            font-weight: 500;
            transition: var(--transition-smooth);
            position: relative;
        }

        .nav-links a:hover, .nav-links a.active {
            color: var(--brand-cyan);
        }

        .btn-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 24px;
            background: linear-gradient(135deg, var(--brand-green) 0%, var(--brand-cyan) 100%);
            color: #080D14;
            font-weight: 600;
            font-size: 14px;
            border-radius: 50px;
            border: none;
            cursor: pointer;
            transition: var(--transition-smooth);
            box-shadow: 0 4px 15px rgba(10, 143, 106, 0.3);
        }

        .btn-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(34, 211, 238, 0.4);
            color: #080D14;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 24px;
            background: rgba(255, 255, 255, 0.08);
            color: #FFFFFF;
            font-weight: 600;
            font-size: 14px;
            border-radius: 50px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            transition: var(--transition-smooth);
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: rgba(255, 255, 255, 0.4);
        }

        /* 徽章样式 */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 14px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 600;
            background: rgba(10, 143, 106, 0.12);
            color: var(--brand-green);
            border: 1px solid rgba(10, 143, 106, 0.25);
        }

        .badge-pulse {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: var(--brand-green);
            box-shadow: 0 0 0 0 rgba(10, 143, 106, 0.7);
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(10, 143, 106, 0.7); }
            70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(10, 143, 106, 0); }
            100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(10, 143, 106, 0); }
        }

        /* 核心板块基础样式 */
        .section-block {
            padding: 96px 0;
            position: relative;
        }

        .section-dark {
            background-color: var(--brand-dark);
            color: #F8FAFC;
        }

        .section-darker {
            background-color: var(--brand-darker);
            color: #F8FAFC;
        }

        .section-light-alt {
            background-color: #EDF2F7;
        }

        .section-header {
            max-width: 800px;
            margin: 0 auto 56px auto;
            text-align: center;
        }

        .section-header.text-left {
            text-align: left;
            margin-left: 0;
        }

        .section-title {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.3;
            margin: 16px 0 16px;
            letter-spacing: -0.5px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .section-dark .section-desc, .section-darker .section-desc {
            color: var(--text-light);
        }

        /* 1. 首屏 Banner 改造：前后对比并置 (Hero) */
        .hero-banner {
            background: linear-gradient(180deg, var(--brand-dark) 0%, #070B10 100%), url('/assets/images/d302ad155d832970.webp') center/cover no-repeat;
            background-blend-mode: overlay;
            padding: 80px 0 110px 0;
            color: #FFFFFF;
            position: relative;
            overflow: hidden;
        }

        .hero-head-wrap {
            max-width: 900px;
            margin: 0 auto 48px auto;
            text-align: center;
        }

        .hero-h1 {
            font-size: 46px;
            font-weight: 800;
            line-height: 1.25;
            margin: 20px 0;
            background: linear-gradient(135deg, #FFFFFF 30%, var(--brand-cyan) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-p {
            font-size: 17px;
            line-height: 1.75;
            color: #CBD5E1;
            margin-bottom: 32px;
        }

        .hero-cta-group {
            display: flex;
            justify-content: center;
            gap: 18px;
            margin-bottom: 24px;
        }

        /* Before / After 对比组件 */
        .comparison-stage {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            margin-top: 20px;
        }

        .compare-card {
            background: rgba(15, 27, 41, 0.7);
            border-radius: var(--radius-2xl);
            padding: 32px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(8px);
            position: relative;
        }

        .compare-card.before {
            border-left: 4px solid #EF4444;
        }

        .compare-card.after {
            border-left: 4px solid var(--brand-green);
            background: rgba(10, 143, 106, 0.08);
            border-color: rgba(10, 143, 106, 0.3);
        }

        .compare-badge {
            display: inline-block;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 4px;
            margin-bottom: 16px;
            text-transform: uppercase;
        }

        .compare-card.before .compare-badge {
            background-color: rgba(239, 68, 68, 0.2);
            color: #F87171;
        }

        .compare-card.after .compare-badge {
            background-color: rgba(10, 143, 106, 0.25);
            color: #34D399;
        }

        .compare-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .compare-item {
            font-size: 14px;
            line-height: 1.6;
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }

        .compare-card.before .compare-item {
            color: #CBD5E1;
        }

        .compare-card.after .compare-item {
            color: #F1F5F9;
            font-weight: 500;
        }

        /* 2. 资料目录与技术规程板块 */
        .spec-bento-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .spec-bento-card {
            background: var(--bg-card);
            border-radius: var(--radius-xl);
            padding: 28px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-color);
            transition: var(--transition-smooth);
        }

        .spec-bento-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--brand-green);
        }

        .spec-no {
            font-family: monospace;
            font-size: 28px;
            font-weight: 800;
            color: var(--brand-green);
            opacity: 0.8;
            margin-bottom: 12px;
        }

        /* 3. 核心技术优势（6大网格） */
        .cards-grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .feature-card {
            background: #FFFFFF;
            border-radius: var(--radius-2xl);
            padding: 36px 30px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-color);
            transition: var(--transition-smooth);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .feature-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(10, 143, 106, 0.4);
        }

        .feature-header {
            margin-bottom: 20px;
        }

        .feature-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--brand-dark);
            margin: 12px 0 8px;
        }

        .feature-text {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.65;
        }

        .card-micro-badge {
            margin-top: 20px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            color: var(--brand-green);
            font-weight: 600;
            background: rgba(10, 143, 106, 0.08);
            padding: 4px 10px;
            border-radius: 6px;
            width: fit-content;
        }

        /* 4. 产品矩阵对比卡 */
        .product-cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .product-card {
            background: #FFFFFF;
            border-radius: var(--radius-2xl);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
            transition: var(--transition-smooth);
        }

        .product-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .product-card-img {
            height: 200px;
            width: 100%;
            object-fit: cover;
        }

        .product-card-body {
            padding: 30px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }

        .product-specs {
            margin: 20px 0;
            border-top: 1px dashed var(--border-color);
            padding-top: 16px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            font-size: 13px;
        }

        .spec-row {
            display: flex;
            justify-content: space-between;
            color: var(--text-muted);
        }

        .spec-value {
            font-weight: 600;
            color: var(--brand-dark);
        }

        /* 5. 深色方法步骤区 (闭环4步法) */
        .step-timeline-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 40px;
        }

        .step-card {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-xl);
            padding: 28px;
            position: relative;
            transition: var(--transition-smooth);
        }

        .step-card:hover {
            background: rgba(255, 255, 255, 0.06);
            border-color: var(--brand-green);
        }

        .step-number {
            font-size: 32px;
            font-weight: 900;
            color: var(--brand-cyan);
            margin-bottom: 12px;
            opacity: 0.9;
        }

        /* 6. 晶圆代工典型案例深潜区 */
        .case-study-box {
            background: #FFFFFF;
            border-radius: var(--radius-2xl);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
        }

        .case-study-content {
            padding: 50px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .case-metrics-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin: 28px 0;
        }

        .case-metric-item {
            background: var(--bg-light);
            border-radius: var(--radius-md);
            padding: 18px;
            border-left: 3px solid var(--brand-green);
        }

        .case-metric-val {
            font-size: 26px;
            font-weight: 800;
            color: var(--brand-green);
        }

        .case-metric-lbl {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 4px;
        }

        .case-study-img-wrap {
            position: relative;
        }

        .case-study-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* 7. 核心效能数据统计条 */
        .metrics-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            background: var(--brand-dark);
            border-radius: var(--radius-2xl);
            padding: 48px;
            border: 1px solid var(--border-dark);
        }

        .metric-stat-box {
            text-align: center;
            border-right: 1px solid rgba(255, 255, 255, 0.1);
        }

        .metric-stat-box:last-child {
            border-right: none;
        }

        .metric-big-num {
            font-size: 44px;
            font-weight: 800;
            background: linear-gradient(135deg, #FFFFFF, var(--brand-cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", sans-serif;
            margin-bottom: 8px;
        }

        .metric-title {
            color: #94A3B8;
            font-size: 14px;
            font-weight: 500;
        }

        /* 8. 技术团队评价区 */
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .testimonial-card {
            background: #FFFFFF;
            border-radius: var(--radius-xl);
            padding: 32px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .eval-role-box {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: 24px;
            border-top: 1px solid var(--border-color);
            padding-top: 16px;
        }

        .eval-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--brand-dark), var(--brand-green));
            color: #FFF;
            display: grid;
            place-items: center;
            font-weight: 700;
            font-size: 16px;
        }

        /* 9. 适用客群与生产环境匹配区 */
        .audience-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .audience-card {
            background: #FFFFFF;
            border-radius: var(--radius-xl);
            padding: 28px 24px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            text-align: center;
            transition: var(--transition-smooth);
        }

        .audience-card:hover {
            border-color: var(--brand-green);
            transform: translateY(-4px);
        }

        .audience-icon-ring {
            width: 56px;
            height: 56px;
            margin: 0 auto 18px;
            border-radius: 50%;
            background: rgba(10, 143, 106, 0.1);
            color: var(--brand-green);
            display: grid;
            place-items: center;
            font-size: 20px;
            font-weight: bold;
        }

        /* 10. 运维技术资讯区 (首页摘要卡片) */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .news-card {
            background: #FFFFFF;
            border-radius: var(--radius-xl);
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            transition: var(--transition-smooth);
        }

        .news-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .news-card-img {
            height: 180px;
            width: 100%;
            object-fit: cover;
        }

        .news-content {
            padding: 24px;
        }

        .news-date {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 8px;
        }

        .news-title {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--brand-dark);
            line-height: 1.4;
        }

        /* 11. 常见技术解答 FAQ (手风琴) */
        .faq-accordion-list {
            max-width: 900px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .faq-item {
            background: #FFFFFF;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition-smooth);
        }

        .faq-question {
            padding: 20px 24px;
            font-weight: 700;
            font-size: 16px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: #FFFFFF;
            user-select: none;
        }

        .faq-question:hover {
            color: var(--brand-green);
        }

        .faq-answer {
            padding: 0 24px 20px 24px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* 12. 底部行动转化区 CTA Form */
        .cta-box-wrapper {
            background: linear-gradient(135deg, var(--brand-dark) 0%, #070D14 100%);
            border-radius: var(--radius-2xl);
            padding: 60px 48px;
            border: 1px solid var(--border-dark);
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.4);
            position: relative;
            color: #FFFFFF;
        }

        .cta-form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .cta-form {
            display: flex;
            flex-direction: column;
            gap: 16px;
            background: rgba(255, 255, 255, 0.04);
            padding: 32px;
            border-radius: var(--radius-xl);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .form-input-group {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .form-label {
            font-size: 13px;
            color: #94A3B8;
        }

        .form-control {
            width: 100%;
            height: 44px;
            background: rgba(15, 27, 41, 0.8);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 8px;
            padding: 0 16px;
            color: #FFFFFF;
            font-size: 14px;
            outline: none;
            transition: var(--transition-smooth);
        }

        .form-control:focus {
            border-color: var(--brand-cyan);
            box-shadow: 0 0 0 2px rgba(34, 211, 238, 0.2);
        }

        /* 页脚规范 */
        .site-footer {
            background-color: #060A0F;
            color: #94A3B8;
            padding: 80px 0 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1.2fr 1fr;
            gap: 48px;
            margin-bottom: 60px;
        }

        .footer-title {
            color: #FFFFFF;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-links a:hover {
            color: var(--brand-cyan);
        }

        .footer-bottom {
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: #64748B;
        }

        .footer-badges {
            display: flex;
            gap: 16px;
        }

        .footer-badge-item {
            background: rgba(255, 255, 255, 0.05);
            padding: 4px 12px;
            border-radius: 4px;
            font-size: 12px;
            color: #CBD5E1;
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

        /* 响应式断点适配 */
        @media (max-width: 1024px) {
            .spec-bento-grid, .step-timeline-grid, .audience-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .cards-grid-3, .product-cards-grid, .testimonials-grid, .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .metrics-strip {
                grid-template-columns: repeat(2, 1fr);
                gap: 40px;
            }
            .case-study-box {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .header-top {
                display: none;
            }
            .nav-links {
                display: none;
            }
            .hero-h1 {
                font-size: 32px;
            }
            .comparison-stage {
                grid-template-columns: 1fr;
            }
            .cards-grid-3, .product-cards-grid, .testimonials-grid, .news-grid, .spec-bento-grid, .step-timeline-grid, .audience-grid {
                grid-template-columns: 1fr;
            }
            .metrics-strip {
                grid-template-columns: 1fr;
            }
            .cta-form-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 16px;
                text-align: center;
            }
            .section-block {
                padding: 60px 0;
            }
        }