/* roulang page: index */
:root {
            --color-primary: #3B4F6B;
            --color-primary-dark: #2D3D54;
            --color-primary-light: #F0F4F8;
            --color-accent: #E88D2E;
            --color-accent-dark: #D4781C;
            --color-bg: #FAFBFD;
            --color-card: #FFFFFF;
            --color-text-primary: #1E293B;
            --color-text-secondary: #64748B;
            --color-text-muted: #94A3B8;
            --color-border: #E8ECF1;
            --color-footer-bg: #1E293B;
            --color-footer-text: #CBD5E1;
            --radius-card: 12px;
            --radius-button: 8px;
            --radius-button-lg: 10px;
            --shadow-card: 0 2px 12px rgba(59, 79, 107, 0.07);
            --shadow-card-hover: 0 8px 28px rgba(59, 79, 107, 0.12);
            --shadow-nav: 0 2px 12px rgba(0, 0, 0, 0.04);
            --font-heading: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-body: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --font-number: 'Inter', 'SF Pro Display', 'PingFang SC', sans-serif;
            --max-width: 1200px;
            --section-gap: 90px;
            --section-gap-tablet: 60px;
            --section-gap-mobile: 48px;
            --nav-height: 64px;
            --nav-height-mobile: 56px;
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: var(--nav-height);
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            font-weight: 400;
            line-height: 1.8;
            color: var(--color-text-primary);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.25s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            font-size: inherit;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ========== 导航栏 ========== */
        .nav-bar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background-color: #FFFFFF;
            border-bottom: 1px solid transparent;
            transition: box-shadow 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94), border-color 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

        .nav-bar.scrolled {
            box-shadow: var(--shadow-nav);
            border-bottom-color: var(--color-border);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-size: 20px;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: -0.3px;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .nav-logo-icon svg {
            width: 20px;
            height: 20px;
            fill: #FFFFFF;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
        }

        .nav-links a {
            display: inline-block;
            padding: 8px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-secondary);
            border-radius: 6px;
            position: relative;
            transition: color 0.25s, background-color 0.25s;
            white-space: nowrap;
        }

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

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 16px;
            right: 16px;
            height: 2px;
            background-color: var(--color-primary);
            border-radius: 2px;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            padding: 10px 22px;
            font-size: 14px;
            font-weight: 600;
            color: #FFFFFF;
            background-color: var(--color-primary);
            border-radius: var(--radius-button);
            transition: background-color 0.25s, box-shadow 0.25s;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-cta:hover {
            background-color: var(--color-primary-dark);
            box-shadow: 0 4px 16px rgba(59, 79, 107, 0.3);
            color: #FFFFFF;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            z-index: 1001;
            padding: 8px;
            background: none;
            border: none;
        }

        .hamburger span {
            display: block;
            width: 24px;
            height: 2px;
            background-color: var(--color-text-primary);
            border-radius: 2px;
            transition: transform 0.3s, opacity 0.3s;
        }

        .hamburger.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .hamburger.open span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-color: #FFFFFF;
            z-index: 999;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 20px;
            padding: 80px 20px 40px;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s;
        }

        .mobile-menu.open {
            display: flex;
            opacity: 1;
            pointer-events: auto;
        }

        .mobile-menu a {
            font-size: 18px;
            font-weight: 600;
            color: var(--color-text-primary);
            padding: 12px 24px;
            border-radius: 8px;
            transition: background-color 0.25s;
            display: block;
            text-align: center;
            width: 100%;
            max-width: 280px;
        }

        .mobile-menu a:hover,
        .mobile-menu a.active {
            background-color: var(--color-primary-light);
            color: var(--color-primary);
        }

        .mobile-menu .nav-cta-mobile {
            display: inline-block;
            padding: 14px 36px;
            font-size: 16px;
            font-weight: 700;
            color: #FFFFFF;
            background-color: var(--color-accent);
            border-radius: var(--radius-button-lg);
            margin-top: 8px;
            text-align: center;
            max-width: 280px;
            width: 100%;
        }

        /* ========== Hero 首屏 ========== */
        .hero {
            position: relative;
            min-height: 85vh;
            display: flex;
            align-items: center;
            padding-top: var(--nav-height);
            overflow: hidden;
            background-color: var(--color-bg);
        }

        .hero-bg {
            position: absolute;
            top: 0;
            right: 0;
            width: 52%;
            height: 100%;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            z-index: 0;
        }

        .hero-bg::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(to right, rgba(59, 79, 107, 0.55) 0%, rgba(59, 79, 107, 0.35) 40%, rgba(59, 79, 107, 0.18) 100%);
        }

        .hero-content {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 60px 20px;
            width: 100%;
        }

        .hero-text {
            max-width: 560px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-accent);
            background-color: rgba(232, 141, 46, 0.1);
            border-radius: 20px;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }

        .hero-badge-dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background-color: var(--color-accent);
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.4;
                transform: scale(1.6);
            }
        }

        .hero h1 {
            font-family: var(--font-heading);
            font-size: 42px;
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: -0.5px;
            color: var(--color-text-primary);
            margin-bottom: 18px;
        }

        .hero h1 .highlight {
            color: var(--color-primary);
        }

        .hero-subtitle {
            font-size: 18px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 460px;
        }

        .hero-buttons {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 32px;
            font-size: 16px;
            font-weight: 600;
            border-radius: var(--radius-button);
            transition: all 0.25s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            cursor: pointer;
            white-space: nowrap;
            text-align: center;
        }

        .btn-primary {
            background-color: var(--color-primary);
            color: #FFFFFF;
            border: none;
        }

        .btn-primary:hover {
            background-color: var(--color-primary-dark);
            box-shadow: 0 4px 16px rgba(59, 79, 107, 0.3);
            color: #FFFFFF;
            transform: translateY(-1px);
        }

        .btn-outline {
            background-color: transparent;
            color: var(--color-primary);
            border: 1.5px solid var(--color-primary);
        }

        .btn-outline:hover {
            background-color: rgba(59, 79, 107, 0.08);
            border-color: var(--color-primary-dark);
            color: var(--color-primary-dark);
            transform: translateY(-1px);
        }

        .btn-accent {
            background-color: var(--color-accent);
            color: #FFFFFF;
            border: none;
            padding: 16px 40px;
            font-size: 17px;
            font-weight: 700;
            border-radius: var(--radius-button-lg);
        }

        .btn-accent:hover {
            background-color: var(--color-accent-dark);
            box-shadow: 0 6px 22px rgba(232, 141, 46, 0.35);
            color: #FFFFFF;
            transform: translateY(-2px);
        }

        .hero-image-wrapper {
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            z-index: 2;
        }

        .hero-mockup {
            width: 100%;
            max-width: 420px;
            border-radius: 20px;
            box-shadow: 0 20px 60px rgba(59, 79, 107, 0.2);
            object-fit: cover;
            aspect-ratio: 9/16;
            background-color: #FFFFFF;
        }

        /* ========== 区块通用 ========== */
        .section {
            padding: var(--section-gap) 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 52px;
        }

        .section-header h2 {
            font-family: var(--font-heading);
            font-size: 30px;
            font-weight: 700;
            letter-spacing: -0.3px;
            color: var(--color-text-primary);
            margin-bottom: 12px;
        }

        .section-header .section-subtitle {
            font-size: 16px;
            color: var(--color-text-secondary);
            max-width: 560px;
            margin: 0 auto;
            line-height: 1.7;
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-accent);
            text-transform: uppercase;
            letter-spacing: 1.5px;
            margin-bottom: 10px;
        }

        /* ========== 服务卡片区 ========== */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .service-card {
            background-color: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            transition: all 0.25s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            display: flex;
            flex-direction: column;
            box-shadow: var(--shadow-card);
        }

        .service-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-primary);
            transform: translateY(-3px);
        }

        .service-card-icon {
            width: 48px;
            height: 48px;
            border-radius: 10px;
            background-color: var(--color-primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            flex-shrink: 0;
        }

        .service-card-icon svg {
            width: 24px;
            height: 24px;
            stroke: var(--color-primary);
            fill: none;
            stroke-width: 2;
        }

        .service-card h3 {
            font-family: var(--font-heading);
            font-size: 19px;
            font-weight: 600;
            color: var(--color-text-primary);
            margin-bottom: 10px;
        }

        .service-card p {
            font-size: 15px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin-bottom: 18px;
            flex-grow: 1;
        }

        .service-card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-primary);
            padding-top: 14px;
            border-top: 1px solid var(--color-border);
            transition: gap 0.25s;
            align-self: flex-start;
        }

        .service-card-link:hover {
            gap: 10px;
            color: var(--color-primary-dark);
        }

        .service-card-link svg {
            width: 16px;
            height: 16px;
            transition: transform 0.25s;
        }

        .service-card-link:hover svg {
            transform: translateX(3px);
        }

        /* ========== 数据优势带 ========== */
        .stats-band {
            background-color: var(--color-primary-light);
            padding: 56px 0;
            width: 100%;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
        }

        .stat-item {
            position: relative;
        }

        .stat-number {
            font-family: var(--font-number);
            font-size: 44px;
            font-weight: 800;
            color: var(--color-accent);
            line-height: 1.1;
            margin-bottom: 8px;
            letter-spacing: -1px;
        }

        .stat-label {
            font-size: 14px;
            color: var(--color-text-secondary);
            font-weight: 500;
            position: relative;
            display: inline-block;
        }

        .stat-label::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 2px;
            background-color: var(--color-primary);
            border-radius: 2px;
            opacity: 0.5;
        }

        .stat-divider {
            display: none;
        }

        /* ========== 案例展示 ========== */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .case-card {
            background-color: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all 0.25s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            box-shadow: var(--shadow-card);
        }

        .case-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-primary);
            transform: translateY(-3px);
        }

        .case-card-image {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            overflow: hidden;
            display: block;
        }

        .case-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

        .case-card:hover .case-card-image img {
            transform: scale(1.04);
        }

        .case-card-body {
            padding: 20px 22px 22px;
        }

        .case-tag {
            display: inline-block;
            padding: 4px 12px;
            font-size: 12px;
            font-weight: 600;
            color: var(--color-text-secondary);
            background-color: var(--color-bg);
            border-radius: 20px;
            margin-bottom: 10px;
            letter-spacing: 0.3px;
        }

        .case-card h3 {
            font-family: var(--font-heading);
            font-size: 17px;
            font-weight: 600;
            color: var(--color-text-primary);
            margin-bottom: 6px;
        }

        .case-card p {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.6;
        }

        .cases-more {
            text-align: center;
            margin-top: 36px;
        }

        .cases-more a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 15px;
            font-weight: 600;
            color: var(--color-primary);
            transition: gap 0.25s;
        }

        .cases-more a:hover {
            gap: 10px;
            color: var(--color-primary-dark);
        }

        /* ========== 解决方案流程 ========== */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }

        .process-step {
            text-align: center;
            position: relative;
            padding: 28px 20px;
            background-color: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: all 0.25s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

        .process-step:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-primary);
            transform: translateY(-2px);
        }

        .process-step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background-color: var(--color-primary);
            color: #FFFFFF;
            font-family: var(--font-number);
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .process-step h3 {
            font-family: var(--font-heading);
            font-size: 17px;
            font-weight: 600;
            color: var(--color-text-primary);
            margin-bottom: 8px;
        }

        .process-step p {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.6;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
        }

        .faq-item {
            border-bottom: 1px solid var(--color-border);
        }

        .faq-item:first-child {
            border-top: 1px solid var(--color-border);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            width: 100%;
            padding: 20px 4px;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text-primary);
            text-align: left;
            cursor: pointer;
            background: none;
            border: none;
            font-family: inherit;
            line-height: 1.5;
            transition: color 0.25s;
        }

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

        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1.5px solid var(--color-border);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            font-size: 18px;
            color: var(--color-text-muted);
            line-height: 1;
        }

        .faq-item.open .faq-icon {
            border-color: var(--color-primary);
            background-color: var(--color-primary);
            color: #FFFFFF;
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94), padding 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
        }

        .faq-answer-inner {
            padding: 0 4px 20px;
            font-size: 15px;
            color: var(--color-text-secondary);
            line-height: 1.75;
        }

        /* ========== CTA 横幅 ========== */
        .cta-banner {
            background: linear-gradient(135deg, var(--color-primary) 0%, #2a3a52 60%, #1f2d40 100%);
            padding: 72px 0;
            text-align: center;
            width: 100%;
        }

        .cta-banner h2 {
            font-family: var(--font-heading);
            font-size: 30px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
        }

        .cta-banner .cta-subtitle {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 32px;
            line-height: 1.7;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== 页脚 ========== */
        .footer {
            background-color: var(--color-footer-bg);
            padding: 56px 0 28px;
            color: var(--color-footer-text);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1.2fr 1fr;
            gap: 36px;
        }

        .footer-brand-desc {
            font-size: 14px;
            line-height: 1.7;
            margin: 14px 0 16px;
            color: var(--color-footer-text);
            opacity: 0.85;
            max-width: 280px;
        }

        .footer-social-icons {
            display: flex;
            gap: 12px;
        }

        .footer-social-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background-color: rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background-color 0.25s;
        }

        .footer-social-icon:hover {
            background-color: rgba(255, 255, 255, 0.18);
        }

        .footer-social-icon svg {
            width: 16px;
            height: 16px;
            fill: var(--color-footer-text);
        }

        .footer h4 {
            font-family: var(--font-heading);
            font-size: 15px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 16px;
        }

        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-links a {
            font-size: 14px;
            color: var(--color-footer-text);
            opacity: 0.8;
            transition: opacity 0.25s, color 0.25s;
        }

        .footer-links a:hover {
            opacity: 1;
            color: #FFFFFF;
        }

        .footer-contact-item {
            font-size: 14px;
            color: var(--color-footer-text);
            opacity: 0.8;
            line-height: 1.7;
        }

        .footer-qr-placeholder {
            width: 90px;
            height: 90px;
            background-color: rgba(255, 255, 255, 0.06);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 11px;
            color: var(--color-footer-text);
            opacity: 0.6;
            text-align: center;
            line-height: 1.4;
        }

        .footer-bottom {
            margin-top: 40px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            text-align: center;
            font-size: 13px;
            color: var(--color-footer-text);
            opacity: 0.6;
        }

        .footer-logo-mini {
            display: flex;
            align-items: center;
            gap: 8px;
            font-family: var(--font-heading);
            font-size: 17px;
            font-weight: 700;
            color: #FFFFFF;
        }

        /* ========== 悬浮下载按钮（移动端） ========== */
        .floating-download {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 998;
            padding: 10px 16px;
            padding-bottom: calc(10px + env(safe-area-inset-bottom, 0px));
            background-color: #FFFFFF;
            border-top: 1px solid var(--color-border);
            box-shadow: 0 -2px 12px rgba(0, 0, 0, 0.06);
        }

        .floating-download .btn-accent {
            width: 100%;
            padding: 14px 24px;
            font-size: 16px;
            border-radius: var(--radius-button);
            justify-content: center;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1199px) {
            .services-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .cases-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-bg {
                width: 45%;
            }
            .hero h1 {
                font-size: 36px;
            }
            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 991px) {
            :root {
                --section-gap: var(--section-gap-tablet);
            }
            .section {
                padding: var(--section-gap) 0;
            }
            .hero {
                min-height: auto;
            }
            .hero-content {
                grid-template-columns: 1fr;
                text-align: center;
                padding: 40px 20px 50px;
                gap: 32px;
            }
            .hero-text {
                max-width: 100%;
            }
            .hero-subtitle {
                max-width: 100%;
                margin-left: auto;
                margin-right: auto;
            }
            .hero-buttons {
                justify-content: center;
            }
            .hero-badge {
                margin-left: auto;
                margin-right: auto;
            }
            .hero-bg {
                position: relative;
                width: 100%;
                height: 280px;
                order: -1;
                border-radius: 0 0 20px 20px;
                overflow: hidden;
            }
            .hero-image-wrapper {
                display: none;
            }
            .hero-content {
                display: flex;
                flex-direction: column-reverse;
            }
            .hero-bg {
                height: 240px;
                width: 100%;
                border-radius: 0 0 16px 16px;
                flex-shrink: 0;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 28px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .section-header h2 {
                font-size: 26px;
            }
            .cta-banner h2 {
                font-size: 26px;
            }
        }

        @media (max-width: 767px) {
            :root {
                --nav-height: var(--nav-height-mobile);
            }
            html {
                scroll-padding-top: var(--nav-height-mobile);
            }
            .nav-bar {
                height: var(--nav-height-mobile);
            }
            .nav-links,
            .nav-cta {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .services-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .cases-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .process-steps {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .hero h1 {
                font-size: 28px;
            }
            .hero-subtitle {
                font-size: 16px;
            }
            .section-header h2 {
                font-size: 22px;
            }
            .stat-number {
                font-size: 36px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
                text-align: center;
            }
            .footer-brand-desc {
                max-width: 100%;
                margin-left: auto;
                margin-right: auto;
            }
            .footer-social-icons {
                justify-content: center;
            }
            .footer-logo-mini {
                justify-content: center;
            }
            .floating-download {
                display: block;
            }
            .btn {
                padding: 12px 26px;
                font-size: 15px;
            }
            .btn-accent {
                padding: 14px 28px;
                font-size: 16px;
            }
            .cta-banner {
                padding: 48px 0;
            }
            .cta-banner h2 {
                font-size: 22px;
            }
            .stats-band {
                padding: 40px 0;
            }
            .service-card {
                padding: 24px 20px;
            }
            .section-header {
                margin-bottom: 36px;
            }
        }

        @media (max-width: 575px) {
            .container {
                padding: 0 16px;
            }
            .hero h1 {
                font-size: 26px;
            }
            .hero-bg {
                height: 200px;
            }
            .hero-buttons {
                flex-direction: column;
                width: 100%;
            }
            .hero-buttons .btn {
                width: 100%;
                justify-content: center;
            }
            .stats-grid {
                gap: 20px;
            }
            .stat-number {
                font-size: 30px;
            }
            .stat-label {
                font-size: 13px;
            }
            .section-header h2 {
                font-size: 20px;
            }
            .faq-question {
                font-size: 15px;
                padding: 16px 2px;
            }
            .nav-logo {
                font-size: 17px;
            }
        }