/* roulang page: index */
:root {
            --primary: #2A9D4B;
            --primary-hover: #238b3f;
            --primary-light: #E8F5E9;
            --accent: #F4A261;
            --accent-hover: #e08d4a;
            --bg: #F9F9F7;
            --text: #2D2D2D;
            --text-light: #555;
            --text-muted: #666;
            --text-footer: #CCCCCC;
            --gold: #E9C46A;
            --gold-dark: #c9a440;
            --white: #FFFFFF;
            --footer-bg: #1E1E1E;
            --border: #e0e0d8;
            --border-light: #ddd;
            --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 8px 20px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.10);
            --radius-sm: 6px;
            --radius: 12px;
            --radius-md: 16px;
            --radius-btn: 8px;
            --transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --max-width: 1200px;
            --font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --h1-size: clamp(2rem, 3.5vw, 2.8rem);
            --h2-size: clamp(1.5rem, 2.5vw, 1.8rem);
            --h3-size: clamp(1.2rem, 1.8vw, 1.4rem);
            --body-size: 1.05rem;
            --small-size: 0.875rem;
            --btn-size: 0.95rem;
        }

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

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

        body {
            font-family: var(--font-family);
            font-size: var(--body-size);
            line-height: 1.7;
            color: var(--text);
            background-color: var(--bg);
            min-width: 320px;
            overflow-x: hidden;
        }

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

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

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

        input,
        textarea {
            font-family: inherit;
            outline: none;
        }

        ul {
            list-style: none;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: 80px 0;
        }

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

        .section-header h2 {
            font-size: var(--h2-size);
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 10px;
        }

        .section-header .subtitle {
            font-size: var(--body-size);
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto;
        }

        .section-divider {
            width: 60%;
            max-width: 300px;
            height: 2px;
            margin: 0 auto 48px;
            background: linear-gradient(90deg, transparent, var(--primary-light), var(--primary), var(--primary-light), transparent);
            border-radius: 2px;
            opacity: 0.7;
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .animate-in {
            animation: fadeInUp 0.6s ease forwards;
        }

        /* ========== HEADER & NAV ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            transition: background var(--transition), color var(--transition), box-shadow var(--transition);
            background: transparent;
            color: var(--white);
            padding: 0;
        }

        .site-header.scrolled {
            background: rgba(255, 255, 255, 0.98);
            color: var(--text);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 14px 24px;
            min-height: 58px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            letter-spacing: 0.5px;
            white-space: nowrap;
            color: inherit;
            z-index: 1002;
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            position: relative;
            overflow: hidden;
        }

        .logo-icon::after {
            content: '';
            position: absolute;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--white);
            opacity: 0.9;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
        }

        .logo-icon::before {
            content: '';
            position: absolute;
            width: 6px;
            height: 14px;
            background: var(--accent);
            border-radius: 3px;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1;
        }

        .logo-text {
            display: flex;
            flex-direction: column;
            line-height: 1.15;
        }

        .logo-text .brand {
            font-size: 1.3rem;
            font-weight: 700;
            letter-spacing: 0.3px;
        }

        .logo-text .tagline-sm {
            font-size: 0.65rem;
            font-weight: 400;
            opacity: 0.7;
            letter-spacing: 0.5px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
        }

        .nav-links a {
            font-size: 0.95rem;
            font-weight: 500;
            color: inherit;
            position: relative;
            padding: 4px 0;
            transition: color var(--transition);
            white-space: nowrap;
        }

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

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

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

        .site-header.scrolled .nav-links a:hover {
            color: var(--primary);
        }

        .site-header.scrolled .nav-links a::after {
            background: var(--primary);
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            z-index: 1002;
            padding: 6px;
            background: transparent;
            border: none;
        }

        .hamburger span {
            width: 26px;
            height: 2.5px;
            background: currentColor;
            border-radius: 3px;
            transition: all var(--transition);
            display: block;
        }

        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            background: var(--primary);
            z-index: 1000;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 24px;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition);
        }

        .mobile-nav-overlay.active {
            display: flex;
            opacity: 1;
            pointer-events: auto;
        }

        .mobile-nav-overlay a {
            font-size: 1.25rem;
            color: var(--white);
            font-weight: 600;
            letter-spacing: 1px;
            transition: color var(--transition);
        }

        .mobile-nav-overlay a:hover {
            color: var(--gold);
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .header-inner {
                padding: 10px 18px;
                min-height: 52px;
            }
            .logo {
                font-size: 1.15rem;
            }
            .logo-icon {
                width: 30px;
                height: 30px;
                border-radius: 6px;
            }
            .logo-text .brand {
                font-size: 1.1rem;
            }
            .logo-text .tagline-sm {
                font-size: 0.6rem;
            }
        }

        /* ========== HERO ========== */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 70, 40, 0.88) 0%, rgba(30, 30, 30, 0.78) 55%, rgba(20, 20, 20, 0.7) 100%);
            z-index: 1;
        }

        .hero-glow {
            position: absolute;
            border-radius: 50%;
            filter: blur(80px);
            opacity: 0.25;
            z-index: 1;
            pointer-events: none;
        }

        .hero-glow.g1 {
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(42, 157, 75, 0.5), transparent);
            top: -80px;
            right: 10%;
        }

        .hero-glow.g2 {
            width: 220px;
            height: 220px;
            background: radial-gradient(circle, rgba(244, 162, 97, 0.4), transparent);
            bottom: 10%;
            left: 5%;
        }

        .hero-glow.g3 {
            width: 180px;
            height: 180px;
            background: radial-gradient(circle, rgba(233, 196, 106, 0.35), transparent);
            top: 35%;
            left: 40%;
        }

        .hero .container {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 48px;
            align-items: center;
            width: 100%;
            padding-top: 70px;
            padding-bottom: 50px;
        }

        .hero-content {
            color: var(--white);
            animation: fadeInUp 0.7s ease forwards;
        }

        .hero-content h1 {
            font-size: var(--h1-size);
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
            text-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
        }

        .hero-content h1 .highlight {
            color: var(--gold);
            position: relative;
        }

        .hero-subtitle {
            font-size: 1.1rem;
            line-height: 1.6;
            opacity: 0.9;
            margin-bottom: 28px;
            max-width: 520px;
            font-weight: 400;
        }

        .hero-btns {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            font-size: var(--btn-size);
            font-weight: 600;
            padding: 13px 30px;
            border-radius: var(--radius-btn);
            transition: all var(--transition);
            white-space: nowrap;
            letter-spacing: 0.3px;
        }

        .btn-primary {
            background: var(--primary);
            color: var(--white);
            border: 2px solid var(--primary);
            box-shadow: 0 4px 14px rgba(42, 157, 75, 0.35);
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            border-color: var(--primary-hover);
            box-shadow: 0 6px 20px rgba(42, 157, 75, 0.45);
            transform: translateY(-2px);
        }

        .btn-secondary {
            background: transparent;
            color: var(--white);
            border: 2px solid rgba(255, 255, 255, 0.7);
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: var(--white);
            transform: translateY(-2px);
        }

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

        .btn-outline:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
        }

        .btn-sm {
            padding: 9px 20px;
            font-size: 0.88rem;
            border-radius: 6px;
        }

        .hero-image-wrap {
            position: relative;
            animation: fadeInUp 0.8s ease 0.15s forwards;
            opacity: 0;
            animation-fill-mode: forwards;
        }

        .hero-image-wrap img {
            width: 100%;
            height: auto;
            aspect-ratio: 4/3;
            object-fit: cover;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-lg);
            border: 3px solid rgba(255, 255, 255, 0.15);
        }

        .hero-image-wrap::before {
            content: '';
            position: absolute;
            inset: -6px;
            border-radius: 20px;
            border: 2px dashed rgba(255, 255, 255, 0.25);
            pointer-events: none;
            z-index: -1;
            animation: dashRotate 20s linear infinite;
        }

        @keyframes dashRotate {
            0% {
                transform: rotate(0deg);
            }
            100% {
                transform: rotate(360deg);
            }
        }

        @media (max-width: 1024px) {
            .hero .container {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .hero {
                min-height: auto;
                padding: 80px 0 40px;
            }
            .hero .container {
                grid-template-columns: 1fr;
                gap: 28px;
                text-align: center;
                padding-top: 70px;
                padding-bottom: 30px;
            }
            .hero-content {
                order: 2;
                padding: 0 8px;
            }
            .hero-image-wrap {
                order: 1;
                max-width: 85%;
                margin: 0 auto;
            }
            .hero-image-wrap img {
                aspect-ratio: 16/10;
                border-radius: var(--radius);
            }
            .hero-subtitle {
                max-width: 100%;
                margin: 0 auto 24px;
            }
            .hero-btns {
                justify-content: center;
            }
            .hero-glow.g1 {
                width: 200px;
                height: 200px;
                top: -40px;
                right: -20px;
            }
            .hero-glow.g2 {
                width: 140px;
                height: 140px;
                bottom: 5%;
                left: -30px;
            }
            .btn {
                padding: 11px 24px;
                font-size: 0.9rem;
            }
        }

        @media (max-width: 520px) {
            .hero-btns {
                flex-direction: column;
                align-items: center;
                gap: 10px;
            }
            .hero-btns .btn {
                width: 100%;
                max-width: 280px;
            }
            .hero-image-wrap {
                max-width: 95%;
            }
            .hero-content h1 {
                font-size: 1.7rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
        }

        /* ========== FEATURES ========== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: var(--white);
            border-radius: var(--radius);
            padding: 32px 28px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
            text-align: center;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: var(--primary);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition);
            border-radius: 0 0 3px 3px;
        }

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

        .feature-card:hover::before {
            transform: scaleX(1);
        }

        .feature-icon {
            width: 56px;
            height: 56px;
            margin: 0 auto 18px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--primary-light);
            position: relative;
        }

        .feature-icon img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-sm);
        }

        .feature-icon .icon-placeholder {
            width: 32px;
            height: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--primary);
            font-weight: 700;
        }

        .feature-card h3 {
            font-size: var(--h3-size);
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
            transition: color var(--transition);
        }

        .feature-card:hover h3 {
            color: var(--primary);
        }

        .feature-card p {
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.55;
            max-width: 260px;
            margin: 0 auto;
        }

        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .features-grid {
                grid-template-columns: 1fr;
                max-width: 420px;
                margin: 0 auto;
            }
            .feature-card {
                padding: 24px 20px;
            }
        }

        /* ========== STATS ========== */
        .stats-section {
            background: linear-gradient(180deg, var(--bg) 0%, #f0f2ee 100%);
            padding: 60px 0;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }

        .stat-item {
            padding: 20px;
        }

        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -1px;
            line-height: 1;
            margin-bottom: 6px;
        }

        .stat-number .plus {
            color: var(--accent);
            font-size: 1.8rem;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-number {
                font-size: 2rem;
            }
        }

        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-number {
                font-size: 1.7rem;
            }
        }

        /* ========== CASES ========== */
        .cases-masonry {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            align-items: start;
        }

        .case-card {
            background: var(--white);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            cursor: pointer;
            break-inside: avoid;
        }

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

        .case-card:hover .case-img img {
            transform: scale(1.05);
        }

        .case-card:hover .case-title {
            color: var(--primary);
        }

        .case-img {
            width: 100%;
            overflow: hidden;
            position: relative;
            aspect-ratio: 16/11;
            background: #e8e8e2;
        }

        .case-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
            display: block;
        }

        .case-card:nth-child(2) .case-img {
            aspect-ratio: 3/4;
        }
        .case-card:nth-child(4) .case-img {
            aspect-ratio: 4/5;
        }
        .case-card:nth-child(5) .case-img {
            aspect-ratio: 16/10;
        }
        .case-card:nth-child(3) .case-img {
            aspect-ratio: 1/1;
        }
        .case-card:nth-child(6) .case-img {
            aspect-ratio: 3/4;
        }

        .case-info {
            padding: 16px 18px;
        }

        .case-title {
            font-weight: 700;
            font-size: 1.05rem;
            margin-bottom: 8px;
            transition: color var(--transition);
            color: var(--text);
        }

        .case-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }

        .case-tag {
            font-size: 0.78rem;
            font-weight: 500;
            color: var(--text-muted);
            background: #f3f3f0;
            padding: 3px 10px;
            border-radius: 20px;
            letter-spacing: 0.3px;
        }

        @media (max-width: 1024px) {
            .cases-masonry {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .cases-masonry {
                grid-template-columns: 1fr;
                max-width: 420px;
                margin: 0 auto;
            }
            .case-card:nth-child(n) .case-img {
                aspect-ratio: 16/10;
            }
        }

        /* ========== COMPARE ========== */
        .compare-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            align-items: stretch;
        }

        .compare-card {
            background: var(--white);
            border-radius: var(--radius);
            padding: 32px 24px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            position: relative;
            display: flex;
            flex-direction: column;
            border: 2px solid transparent;
        }

        .compare-card.featured {
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
            transform: scale(1.03);
            z-index: 2;
            background: #fdfdfb;
        }

        .compare-card:hover {
            box-shadow: var(--shadow-md);
        }

        .compare-card.featured:hover {
            transform: scale(1.03) translateY(-4px);
            box-shadow: var(--shadow-lg);
        }

        .compare-badge {
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--gold);
            color: #3d3d2a;
            font-weight: 700;
            font-size: 0.82rem;
            padding: 5px 16px;
            border-radius: 20px;
            letter-spacing: 0.5px;
            box-shadow: 0 2px 8px rgba(233, 196, 106, 0.4);
            white-space: nowrap;
        }

        .compare-card h3 {
            font-size: var(--h3-size);
            font-weight: 700;
            text-align: center;
            margin-bottom: 8px;
            color: var(--text);
        }

        .compare-price {
            text-align: center;
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }

        .compare-price .unit {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-muted);
        }

        .compare-features {
            flex: 1;
            margin-bottom: 20px;
        }

        .compare-features li {
            padding: 8px 0;
            font-size: 0.93rem;
            color: var(--text-light);
            display: flex;
            align-items: flex-start;
            gap: 8px;
            line-height: 1.4;
            border-bottom: 1px solid #f5f5f2;
        }

        .compare-features li:last-child {
            border-bottom: none;
        }

        .check-icon {
            color: var(--primary);
            font-weight: 700;
            flex-shrink: 0;
            margin-top: 1px;
        }

        .compare-card .btn {
            align-self: center;
            width: 100%;
            text-align: center;
        }

        @media (max-width: 1024px) {
            .compare-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 14px;
            }
            .compare-card {
                padding: 24px 16px;
            }
            .compare-card.featured {
                transform: scale(1.02);
            }
            .compare-card.featured:hover {
                transform: scale(1.02) translateY(-4px);
            }
        }

        @media (max-width: 768px) {
            .compare-grid {
                grid-template-columns: 1fr;
                max-width: 420px;
                margin: 0 auto;
                gap: 36px;
            }
            .compare-card.featured {
                transform: scale(1);
                order: -1;
            }
            .compare-card.featured:hover {
                transform: scale(1) translateY(-4px);
            }
            .compare-badge {
                top: -13px;
            }
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            background: var(--white);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1.05rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text);
            user-select: none;
            transition: color var(--transition);
            gap: 12px;
        }

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

        .faq-arrow {
            flex-shrink: 0;
            width: 22px;
            height: 22px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: transform var(--transition);
            font-size: 1.1rem;
            color: var(--primary);
        }

        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.65;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 18px;
        }

        @media (max-width: 768px) {
            .faq-question {
                padding: 16px 18px;
                font-size: 0.98rem;
            }
            .faq-answer {
                padding: 0 18px;
                font-size: 0.9rem;
            }
            .faq-item.open .faq-answer {
                padding: 0 18px 16px;
            }
        }

        /* ========== CONTACT CTA ========== */
        .contact-section {
            background: linear-gradient(180deg, #EAF5EB 0%, #F9F9F7 100%);
        }

        .contact-wrapper {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 48px;
            align-items: center;
            max-width: 960px;
            margin: 0 auto;
        }

        .contact-info h2 {
            font-size: var(--h2-size);
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text);
            line-height: 1.3;
        }

        .contact-info p {
            font-size: 1rem;
            color: var(--text-muted);
            line-height: 1.6;
            max-width: 380px;
        }

        .contact-form {
            background: var(--white);
            border-radius: var(--radius);
            padding: 32px 28px;
            box-shadow: var(--shadow-sm);
        }

        .form-group {
            margin-bottom: 16px;
        }

        .form-group label {
            display: block;
            font-size: 0.88rem;
            font-weight: 600;
            margin-bottom: 5px;
            color: var(--text);
        }

        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 12px 14px;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            transition: all var(--transition);
            background: #fafaf8;
            color: var(--text);
        }

        .form-group input:focus,
        .form-group textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(42, 157, 75, 0.12);
            background: var(--white);
            outline: none;
        }

        .form-group input::placeholder,
        .form-group textarea::placeholder {
            color: #b0b0a8;
        }

        .form-group textarea {
            resize: vertical;
            min-height: 90px;
        }

        .contact-form .btn {
            width: 100%;
            margin-top: 6px;
            padding: 13px;
            font-size: 1rem;
        }

        .form-success {
            display: none;
            text-align: center;
            padding: 20px;
            color: var(--primary);
            font-weight: 600;
            font-size: 1.05rem;
        }

        .form-success.show {
            display: block;
        }

        @media (max-width: 768px) {
            .contact-wrapper {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .contact-info {
                text-align: center;
            }
            .contact-info p {
                max-width: 100%;
            }
            .contact-form {
                padding: 24px 18px;
            }
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--footer-bg);
            color: var(--text-footer);
            padding: 50px 0 28px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.9fr 0.9fr;
            gap: 36px;
            margin-bottom: 36px;
        }

        .footer-col h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--white);
            letter-spacing: 0.3px;
        }

        .footer-col p,
        .footer-col li {
            font-size: 0.9rem;
            line-height: 1.7;
            color: var(--text-footer);
            margin-bottom: 6px;
        }

        .footer-col a {
            color: var(--text-footer);
            transition: color var(--transition);
            font-size: 0.9rem;
        }

        .footer-col a:hover {
            color: var(--primary);
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 18px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 0.82rem;
            color: #999;
        }

        .footer-social {
            display: flex;
            gap: 14px;
            margin-top: 8px;
        }

        .footer-social a {
            width: 34px;
            height: 34px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
            transition: all var(--transition);
            color: var(--text-footer);
        }

        .footer-social a:hover {
            background: var(--primary);
            color: var(--white);
            transform: translateY(-2px);
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
                text-align: center;
            }
            .footer-social {
                justify-content: center;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-col h4 {
                font-size: 0.95rem;
            }
        }

        /* ========== BACK TO TOP ========== */
        .back-to-top {
            position: fixed;
            bottom: 28px;
            right: 28px;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            box-shadow: 0 4px 16px rgba(42, 157, 75, 0.35);
            z-index: 900;
            opacity: 0;
            pointer-events: none;
            transition: all var(--transition);
            cursor: pointer;
            border: none;
        }

        .back-to-top.visible {
            opacity: 1;
            pointer-events: auto;
        }

        .back-to-top:hover {
            background: var(--primary-hover);
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(42, 157, 75, 0.5);
        }

        @media (max-width: 768px) {
            .back-to-top {
                bottom: 20px;
                right: 16px;
                width: 38px;
                height: 38px;
                font-size: 1rem;
            }
        }

        /* ========== GLOBAL UTILS ========== */
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }
            html {
                scroll-behavior: auto;
            }
        }