/* roulang page: index */
:root {
            --color-primary: #1B6FA8;
            --color-primary-hover: #155A8A;
            --color-primary-light: #E8F2F9;
            --color-accent: #E8553D;
            --color-accent-hover: #C9402B;
            --color-bg: #FBFCFD;
            --color-surface: #FFFFFF;
            --color-text-primary: #1A1D22;
            --color-text-secondary: #5A6070;
            --color-text-muted: #949BAA;
            --color-border: #E5E9F0;
            --color-shadow: rgba(27, 111, 168, 0.06);
            --color-footer-bg: #1A1D22;
            --spacing-4: 4px;
            --spacing-8: 8px;
            --spacing-12: 12px;
            --spacing-16: 16px;
            --spacing-20: 20px;
            --spacing-24: 24px;
            --spacing-32: 32px;
            --spacing-40: 40px;
            --spacing-48: 48px;
            --spacing-64: 64px;
            --spacing-80: 80px;
            --spacing-96: 96px;
            --spacing-120: 120px;
            --card-radius: 12px;
            --btn-radius: 8px;
            --tag-radius: 20px;
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 72px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, -apple-system, sans-serif;
            font-size: 15px;
            line-height: 1.7;
            color: var(--color-text-primary);
            background-color: var(--color-bg);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 导航 */
        #header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: #fff;
            height: 64px;
            transition: box-shadow 0.3s ease;
            border-bottom: 1px solid transparent;
        }

        #header.scrolled {
            box-shadow: 0 1px 8px rgba(0, 0, 0, 0.08);
            border-bottom: 1px solid var(--color-border);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--color-primary);
            white-space: nowrap;
            z-index: 1001;
        }

        .nav-logo svg {
            width: 32px;
            height: 32px;
            flex-shrink: 0;
        }

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

        .nav-links a {
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            font-weight: 500;
            position: relative;
            transition: color 0.2s ease;
            white-space: nowrap;
        }

        .nav-links a:hover,
        .nav-links a:focus-visible {
            color: var(--color-primary);
            outline: none;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
            transition: width 0.25s ease;
        }

        .nav-links a:hover::after,
        .nav-links a:focus-visible::after {
            width: 100%;
        }

        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--color-accent);
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            padding: 10px 22px;
            border-radius: var(--btn-radius);
            white-space: nowrap;
            transition: all 0.25s ease;
            box-shadow: 0 2px 8px rgba(232, 85, 61, 0.2);
        }

        .nav-cta-btn:hover {
            background: var(--color-accent-hover);
            box-shadow: 0 4px 16px rgba(232, 85, 61, 0.3);
            transform: translateY(-1px);
            color: #fff;
        }

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

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

        .hamburger.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .hamburger.active span:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }

        .hamburger.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-nav-panel {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            background: #fff;
            z-index: 999;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 20px;
            transform: translateX(100%);
            transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .mobile-nav-panel.open {
            transform: translateX(0);
        }

        .mobile-nav-panel a {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--color-text-primary);
            padding: 14px 0;
            display: block;
            text-align: center;
            transition: color 0.2s ease;
        }

        .mobile-nav-panel a:hover {
            color: var(--color-primary);
        }

        .mobile-nav-panel .nav-cta-btn {
            margin-top: 12px;
            font-size: 1rem;
            padding: 14px 40px;
            width: 80%;
            max-width: 300px;
            text-align: center;
        }

        /* Hero */
        #hero {
            min-height: 85vh;
            min-height: 500px;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
            background: #fff;
        }

        #hero::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(27, 111, 168, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
            z-index: 0;
        }

        #hero .container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            position: relative;
            z-index: 1;
            width: 100%;
        }

        .hero-content h1 {
            font-size: 2.6rem;
            font-weight: 700;
            line-height: 1.2;
            color: var(--color-text-primary);
            margin-bottom: 20px;
            letter-spacing: -0.02em;
        }

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

        .hero-content .hero-subtitle {
            font-size: 1.1rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 520px;
        }

        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--color-accent);
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            padding: 14px 32px;
            border-radius: var(--btn-radius);
            transition: all 0.25s ease;
            box-shadow: 0 2px 8px rgba(232, 85, 61, 0.25);
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: var(--color-accent-hover);
            box-shadow: 0 4px 16px rgba(232, 85, 61, 0.35);
            transform: translateY(-1px);
            color: #fff;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            color: var(--color-primary);
            font-weight: 600;
            font-size: 1rem;
            padding: 14px 32px;
            border-radius: var(--btn-radius);
            border: 2px solid var(--color-primary);
            transition: all 0.25s ease;
            white-space: nowrap;
        }

        .btn-secondary:hover {
            background: var(--color-primary-light);
            border-color: var(--color-primary-hover);
            color: var(--color-primary-hover);
        }

        .btn-text-link {
            display: inline-flex;
            align-items: center;
            color: var(--color-primary);
            font-weight: 500;
            text-decoration: underline;
            text-underline-offset: 4px;
            transition: color 0.2s ease;
        }

        .btn-text-link:hover {
            color: var(--color-primary-hover);
        }

        .hero-visual {
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
        }

        .hero-visual .hero-img-wrapper {
            width: 100%;
            max-width: 520px;
            aspect-ratio: 4/3;
            border-radius: 16px;
            overflow: hidden;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            box-shadow: 0 8px 40px rgba(27, 111, 168, 0.1);
            position: relative;
        }

        .hero-visual .hero-img-wrapper::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(27, 111, 168, 0.08) 0%, transparent 60%);
            pointer-events: none;
        }

        /* 板块通用 */
        section {
            padding: 80px 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-header h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-text-primary);
            margin-bottom: 12px;
            line-height: 1.3;
        }

        .section-header .section-subtitle {
            font-size: 1rem;
            color: var(--color-text-secondary);
            max-width: 560px;
            margin: 0 auto;
            line-height: 1.6;
        }

        /* 服务卡片 */
        #services {
            background: #fff;
        }

        .services-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
            max-width: 1000px;
            margin: 0 auto;
        }

        .service-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--card-radius);
            padding: 32px;
            box-shadow: 0 1px 3px var(--color-shadow), 0 4px 16px rgba(0, 0, 0, 0.03);
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .service-card:hover {
            box-shadow: 0 2px 8px var(--color-shadow), 0 8px 32px rgba(0, 0, 0, 0.06);
            transform: translateY(-2px);
            border-color: var(--color-primary-light);
        }

        .service-card .card-icon {
            width: 48px;
            height: 48px;
            border-radius: 10px;
            background: var(--color-primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
        }

        .service-card .card-icon svg {
            width: 24px;
            height: 24px;
            color: var(--color-primary);
        }

        .service-card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--color-text-primary);
            margin-bottom: 8px;
        }

        .service-card p {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            line-height: 1.6;
            margin-bottom: 0;
        }

        .service-card.card-variant-1 {
            border-left: 3px solid var(--color-primary);
        }

        .service-card.card-variant-2 .card-decor-strip {
            position: absolute;
            bottom: 0;
            left: 32px;
            width: 40px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 3px 3px 0 0;
        }

        .service-card.card-variant-3 .shield-badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 0.75rem;
            color: var(--color-primary);
            font-weight: 600;
            margin-top: 8px;
        }

        .service-card.card-variant-4 .device-icons {
            display: flex;
            gap: 8px;
            margin-top: 10px;
            color: var(--color-text-muted);
            font-size: 0.8rem;
            align-items: center;
        }

        .service-card .card-data-tag {
            display: inline-block;
            background: var(--color-primary-light);
            color: var(--color-primary);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--tag-radius);
            margin-top: 10px;
        }

        /* 优势数据 */
        #advantages {
            background: rgba(232, 242, 249, 0.5);
        }

        .advantages-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
            max-width: 900px;
            margin: 0 auto;
        }

        .advantage-item .adv-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--color-primary);
            font-family: "SF Mono", "Menlo", "Consolas", monospace;
            line-height: 1;
            margin-bottom: 8px;
            letter-spacing: -0.02em;
        }

        .advantage-item .adv-label {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            margin-bottom: 10px;
        }

        .advantage-item .adv-decor-line {
            width: 40px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 3px;
            margin: 0 auto;
        }

        /* 案例 */
        #cases {
            background: #fff;
        }

        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            max-width: 1100px;
            margin: 0 auto;
            align-items: start;
        }

        .case-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--card-radius);
            overflow: hidden;
            box-shadow: 0 1px 3px var(--color-shadow), 0 4px 16px rgba(0, 0, 0, 0.03);
            transition: all 0.3s ease;
        }

        .case-card:hover {
            box-shadow: 0 2px 8px var(--color-shadow), 0 8px 32px rgba(0, 0, 0, 0.06);
            transform: translateY(-2px);
        }

        .case-card.card-tall {
            margin-top: -12px;
        }

        .case-card .case-img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            position: relative;
            display: block;
        }

        .case-card .case-img-wrapper {
            position: relative;
            overflow: hidden;
        }

        .case-card .case-img-wrapper::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 30%;
            background: linear-gradient(to top, rgba(27, 111, 168, 0.25), transparent);
            pointer-events: none;
            z-index: 1;
        }

        .case-card .case-img-wrapper img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            display: block;
            transition: transform 0.4s ease;
        }

        .case-card:hover .case-img-wrapper img {
            transform: scale(1.03);
        }

        .case-card .case-body {
            padding: 20px 24px 24px;
        }

        .case-card .case-body h3 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--color-text-primary);
            margin-bottom: 6px;
        }

        .case-card .case-body .case-tag {
            display: inline-block;
            background: var(--color-primary-light);
            color: var(--color-primary);
            font-size: 0.7rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--tag-radius);
            margin-bottom: 8px;
        }

        .case-card .case-body p {
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            line-height: 1.5;
        }

        /* 解决方案 */
        #solutions {
            background: rgba(232, 242, 249, 0.35);
        }

        .solution-row {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 48px;
            align-items: center;
            margin-bottom: 64px;
        }

        .solution-row:last-child {
            margin-bottom: 0;
        }

        .solution-row.reverse {
            direction: rtl;
        }

        .solution-row.reverse>* {
            direction: ltr;
        }

        .solution-text h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--color-text-primary);
            margin-bottom: 14px;
        }

        .solution-text p {
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
            max-width: 500px;
        }

        .solution-text .solution-features {
            list-style: none;
            margin-bottom: 20px;
        }

        .solution-text .solution-features li {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            padding: 6px 0;
            display: flex;
            align-items: flex-start;
            gap: 8px;
            line-height: 1.5;
        }

        .solution-text .solution-features li .check-icon {
            flex-shrink: 0;
            width: 18px;
            height: 18px;
            color: var(--color-primary);
            margin-top: 2px;
        }

        .solution-img {
            border-radius: var(--card-radius);
            overflow: hidden;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
        }

        .solution-img img {
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
            display: block;
            transition: transform 0.4s ease;
        }

        .solution-img:hover img {
            transform: scale(1.02);
        }

        /* FAQ */
        #faq {
            background: #fff;
        }

        .faq-list {
            max-width: 760px;
            margin: 0 auto;
        }

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

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 0;
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-text-primary);
            cursor: pointer;
            text-align: left;
            transition: color 0.2s ease;
            gap: 16px;
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            transition: transform 0.3s ease;
            color: var(--color-text-muted);
        }

        .faq-item.active .faq-question .faq-icon {
            transform: rotate(45deg);
            color: var(--color-primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
        }

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

        .faq-answer-inner {
            padding: 0 0 20px;
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
        }

        /* 联系CTA */
        #contact {
            background: var(--color-primary);
            padding: 80px 0;
            text-align: center;
            color: #fff;
        }

        #contact h2 {
            font-size: 2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }

        #contact .contact-desc {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 32px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.6;
        }

        #contact .contact-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
            margin-bottom: 24px;
        }

        #contact .btn-primary-inverse {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: #fff;
            color: var(--color-accent);
            font-weight: 600;
            font-size: 1rem;
            padding: 14px 32px;
            border-radius: var(--btn-radius);
            transition: all 0.25s ease;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.12);
            white-space: nowrap;
        }

        #contact .btn-primary-inverse:hover {
            background: #f8f8f8;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.18);
            transform: translateY(-1px);
        }

        #contact .btn-outline-inverse {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            padding: 14px 32px;
            border-radius: var(--btn-radius);
            border: 2px solid rgba(255, 255, 255, 0.7);
            transition: all 0.25s ease;
            white-space: nowrap;
        }

        #contact .btn-outline-inverse:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }

        #contact .contact-links {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.55);
            display: flex;
            gap: 20px;
            justify-content: center;
            flex-wrap: wrap;
        }

        #contact .contact-links a {
            color: rgba(255, 255, 255, 0.55);
            transition: color 0.2s ease;
        }

        #contact .contact-links a:hover {
            color: rgba(255, 255, 255, 0.85);
        }

        /* 页脚 */
        footer {
            background: var(--color-footer-bg);
            color: rgba(255, 255, 255, 0.6);
            padding: 40px 0 24px;
        }

        footer .footer-inner {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            display: grid;
            grid-template-columns: 1fr auto;
            gap: 32px;
            align-items: start;
        }

        footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.1rem;
            color: #fff;
            margin-bottom: 8px;
        }

        footer .footer-brand svg {
            width: 28px;
            height: 28px;
        }

        footer .footer-desc {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.45);
            max-width: 300px;
            line-height: 1.5;
        }

        footer .footer-links {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px 40px;
        }

        footer .footer-links .link-group h4 {
            font-size: 0.85rem;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 8px;
        }

        footer .footer-links .link-group a {
            display: block;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.45);
            padding: 3px 0;
            transition: color 0.2s ease;
        }

        footer .footer-links .link-group a:hover {
            color: rgba(255, 255, 255, 0.75);
        }

        footer .footer-bottom {
            max-width: 1200px;
            margin: 24px auto 0;
            padding: 20px 20px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            text-align: center;
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.4);
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            #hero .container {
                grid-template-columns: 1fr;
                gap: 32px;
                text-align: center;
            }
            .hero-content .hero-subtitle {
                max-width: 100%;
                margin-left: auto;
                margin-right: auto;
            }
            .hero-cta-group {
                justify-content: center;
            }
            .hero-visual .hero-img-wrapper {
                max-width: 400px;
                margin: 0 auto;
            }
            .hero-content h1 {
                font-size: 2.2rem;
            }
            .services-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .advantages-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 28px;
            }
            .cases-grid {
                grid-template-columns: 1fr;
                gap: 20px;
                max-width: 500px;
            }
            .case-card.card-tall {
                margin-top: 0;
            }
            .solution-row {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .solution-row.reverse {
                direction: ltr;
            }
            .solution-text p {
                max-width: 100%;
            }
            footer .footer-inner {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .nav-cta-btn.desktop-only {
                display: none;
            }
            section {
                padding: 56px 0;
            }
            .section-header h2 {
                font-size: 1.6rem;
            }
            #hero {
                min-height: auto;
                padding: 40px 0 56px;
            }
            .hero-content h1 {
                font-size: 1.75rem;
            }
            .hero-content .hero-subtitle {
                font-size: 0.95rem;
            }
            .services-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .service-card {
                padding: 24px;
            }
            .advantages-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .advantage-item .adv-number {
                font-size: 2.2rem;
            }
            .cases-grid {
                max-width: 100%;
                gap: 16px;
            }
            #contact {
                padding: 56px 0;
            }
            #contact h2 {
                font-size: 1.5rem;
            }
            .hero-visual .hero-img-wrapper {
                max-width: 320px;
                aspect-ratio: 4/3;
            }
            .btn-primary,
            .btn-secondary,
            #contact .btn-primary-inverse,
            #contact .btn-outline-inverse {
                padding: 12px 24px;
                font-size: 0.9rem;
            }
            footer .footer-links {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
        }

        @media (max-width: 520px) {
            .advantages-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .hero-cta-group {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-cta-group .btn-primary,
            .hero-cta-group .btn-secondary {
                width: 100%;
                text-align: center;
            }
            #contact .contact-cta-group {
                flex-direction: column;
                align-items: stretch;
                padding: 0 20px;
            }
            #contact .contact-cta-group .btn-primary-inverse,
            #contact .contact-cta-group .btn-outline-inverse {
                width: 100%;
                text-align: center;
            }
            .section-header h2 {
                font-size: 1.4rem;
            }
            .hero-content h1 {
                font-size: 1.5rem;
            }
        }