/* roulang page: index */
:root {
            --color-primary: #0A1E32;
            --color-primary-light: #132D48;
            --color-bg: #FFFFFF;
            --color-bg-alt: #F4F7FB;
            --color-accent-orange: #FF6B35;
            --color-accent-orange-dark: #E55A2B;
            --color-accent-purple: #7B2FFF;
            --color-text: #333333;
            --color-text-light: #6B7B8D;
            --color-text-white: #FFFFFF;
            --color-border: #D1D9E6;
            --color-border-light: #E8ECF2;
            --color-card-bg: #FFFFFF;
            --color-card-shadow: rgba(10, 30, 50, 0.06);
            --color-card-shadow-hover: rgba(10, 30, 50, 0.10);
            --color-nav-shadow: rgba(10, 30, 50, 0.04);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 40px;
            --radius-card: 12px;
            --shadow-card: 0 8px 24px rgba(10, 30, 50, 0.06);
            --shadow-card-hover: 0 12px 32px rgba(10, 30, 50, 0.10);
            --shadow-nav: 0 1px 0 rgba(10, 30, 50, 0.06);
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 64px;
            --spacing-2xl: 96px;
            --spacing-section: 120px;
            --nav-height: 72px;
            --font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', 'Segoe UI', sans-serif;
            --transition-fast: 0.2s ease;
            --transition-normal: 0.3s ease;
            --transition-slow: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: var(--nav-height);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.8;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--color-accent-orange);
        }

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

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

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 var(--spacing-md);
            width: 100%;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 var(--spacing-sm);
            }
        }

        /* ========== HEADER / NAV ========== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: #FFFFFF;
            box-shadow: var(--shadow-nav);
            transition: box-shadow var(--transition-normal);
        }
        .header.scrolled {
            box-shadow: 0 2px 12px rgba(10, 30, 50, 0.08);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 var(--spacing-md);
        }
        @media (max-width: 768px) {
            .header-inner {
                padding: 0 var(--spacing-sm);
            }
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 22px;
            color: var(--color-primary);
            flex-shrink: 0;
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            flex-shrink: 0;
            position: relative;
        }
        .logo-icon svg {
            width: 100%;
            height: 100%;
        }
        .logo-text {
            line-height: 1.1;
        }
        @media (max-width: 520px) {
            .logo {
                font-size: 18px;
                gap: 6px;
            }
            .logo-icon {
                width: 30px;
                height: 30px;
            }
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
        }
        .nav-links a {
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text);
            position: relative;
            padding: 4px 0;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--color-accent-orange);
            border-radius: 1px;
            transition: width var(--transition-normal);
        }
        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }
        .nav-links a:hover {
            color: var(--color-accent-orange);
        }
        .nav-cta {
            display: inline-block;
            padding: 10px 22px;
            background: linear-gradient(135deg, var(--color-accent-orange), var(--color-accent-orange-dark));
            color: #FFFFFF !important;
            border-radius: var(--radius-lg);
            font-weight: 700;
            font-size: 14px;
            letter-spacing: 0.3px;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-cta:hover {
            filter: brightness(1.1);
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(255, 107, 53, 0.35);
        }
        .nav-cta::after {
            display: none !important;
        }

        /* Hamburger */
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            width: 30px;
            height: 22px;
            justify-content: center;
            cursor: pointer;
            z-index: 1001;
            position: relative;
        }
        .hamburger span {
            display: block;
            width: 100%;
            height: 2.5px;
            background: var(--color-primary);
            border-radius: 2px;
            transition: all var(--transition-normal);
            transform-origin: center;
        }
        .hamburger.active span:nth-child(1) {
            transform: translateY(7.5px) rotate(45deg);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }
        .hamburger.active span:nth-child(3) {
            transform: translateY(-7.5px) rotate(-45deg);
        }

        @media (max-width: 768px) {
            .hamburger {
                display: flex;
            }
            .nav-links {
                position: fixed;
                top: 0;
                right: -100%;
                width: 280px;
                height: 100vh;
                background: #FFFFFF;
                flex-direction: column;
                align-items: flex-start;
                padding: 100px 32px 40px;
                gap: 20px;
                transition: right var(--transition-slow);
                box-shadow: -4px 0 24px rgba(10, 30, 50, 0.12);
                z-index: 999;
            }
            .nav-links.open {
                right: 0;
            }
            .nav-overlay {
                display: none;
                position: fixed;
                inset: 0;
                background: rgba(10, 30, 50, 0.45);
                z-index: 998;
                transition: opacity var(--transition-normal);
            }
            .nav-overlay.open {
                display: block;
            }
            .nav-links a {
                font-size: 17px;
            }
            .nav-cta {
                margin-top: 8px;
                padding: 12px 28px;
                font-size: 15px;
            }
        }

        /* ========== HERO SECTION ========== */
        .hero {
            min-height: 85vh;
            display: flex;
            align-items: center;
            padding-top: var(--nav-height);
            background: var(--color-bg);
            position: relative;
            overflow: hidden;
        }
        .hero-bg-pattern {
            position: absolute;
            right: -8%;
            top: 10%;
            width: 55%;
            height: 80%;
            background: url('/assets/images/backpic/back-1.webp') center/contain no-repeat;
            opacity: 0.08;
            pointer-events: none;
            z-index: 0;
        }
        .hero-ring-decoration {
            position: absolute;
            right: 5%;
            bottom: 12%;
            width: 320px;
            height: 320px;
            border: 2px dashed rgba(10, 30, 50, 0.06);
            border-radius: 50%;
            pointer-events: none;
            z-index: 0;
            animation: rotateSlow 60s linear infinite;
        }
        @keyframes rotateSlow {
            from {
                transform: rotate(0deg);
            }
            to {
                transform: rotate(360deg);
            }
        }
        .hero-inner {
            display: flex;
            align-items: center;
            gap: 56px;
            width: 100%;
            position: relative;
            z-index: 1;
        }
        .hero-left {
            flex: 0 0 52%;
            max-width: 52%;
        }
        .hero-right {
            flex: 1;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(123, 47, 255, 0.08);
            color: var(--color-accent-purple);
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.4px;
            margin-bottom: var(--spacing-md);
        }
        .hero-title {
            font-size: 48px;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.2;
            margin-bottom: var(--spacing-sm);
            letter-spacing: -0.3px;
        }
        .hero-title .highlight {
            color: var(--color-accent-orange);
            position: relative;
        }
        .hero-subtitle {
            font-size: 18px;
            color: var(--color-text-light);
            line-height: 1.7;
            margin-bottom: var(--spacing-lg);
            max-width: 440px;
        }
        .hero-cta-group {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            background: linear-gradient(135deg, var(--color-accent-orange), var(--color-accent-orange-dark));
            color: #FFFFFF;
            font-weight: 700;
            font-size: 16px;
            border-radius: var(--radius-lg);
            letter-spacing: 0.3px;
            transition: all var(--transition-fast);
            position: relative;
            overflow: hidden;
            white-space: nowrap;
        }
        .btn-primary:hover {
            filter: brightness(1.1);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 107, 53, 0.35);
            color: #FFFFFF;
        }
        .btn-primary::after {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 0;
            height: 0;
            background: rgba(255, 255, 255, 0.25);
            border-radius: 50%;
            transform: translate(-50%, -50%);
            transition: width 0.5s, height 0.5s;
        }
        .btn-primary:active::after {
            width: 300px;
            height: 300px;
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            background: transparent;
            color: var(--color-primary);
            font-weight: 600;
            font-size: 16px;
            border-radius: var(--radius-lg);
            border: 2px solid var(--color-primary);
            letter-spacing: 0.3px;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .btn-outline:hover {
            background: var(--color-primary);
            color: #FFFFFF;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(10, 30, 50, 0.18);
        }

        /* Data Dashboard */
        .data-dashboard {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            width: 100%;
            max-width: 420px;
        }
        .data-card {
            background: var(--color-card-bg);
            border-radius: var(--radius-card);
            padding: 22px 20px;
            box-shadow: var(--shadow-card);
            text-align: center;
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }
        .data-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .data-card-icon {
            font-size: 22px;
            color: var(--color-accent-orange);
            margin-bottom: 6px;
            display: block;
        }
        .data-card-number {
            font-size: 40px;
            font-weight: 700;
            color: var(--color-accent-orange);
            line-height: 1;
            margin-bottom: 4px;
            letter-spacing: -1px;
        }
        .data-card-label {
            font-size: 13px;
            color: var(--color-text-light);
            line-height: 1.3;
            position: relative;
            display: inline-block;
        }
        .data-card-label::after {
            content: '';
            display: block;
            width: 28px;
            height: 2px;
            background: var(--color-accent-orange);
            margin: 6px auto 0;
            border-radius: 1px;
            opacity: 0.5;
        }

        @media (max-width: 1024px) {
            .hero-inner {
                gap: 36px;
            }
            .hero-left {
                flex: 0 0 50%;
                max-width: 50%;
            }
            .hero-title {
                font-size: 38px;
            }
            .data-dashboard {
                max-width: 340px;
                gap: 10px;
            }
            .data-card {
                padding: 16px 14px;
            }
            .data-card-number {
                font-size: 32px;
            }
        }
        @media (max-width: 768px) {
            .hero {
                min-height: auto;
                padding-top: calc(var(--nav-height) + 40px);
                padding-bottom: 50px;
            }
            .hero-inner {
                flex-direction: column;
                gap: 40px;
            }
            .hero-left {
                flex: 1;
                max-width: 100%;
                text-align: center;
            }
            .hero-subtitle {
                max-width: 100%;
                margin-left: auto;
                margin-right: auto;
            }
            .hero-cta-group {
                justify-content: center;
            }
            .hero-title {
                font-size: 32px;
            }
            .hero-right {
                width: 100%;
            }
            .data-dashboard {
                grid-template-columns: 1fr 1fr;
                max-width: 100%;
                gap: 12px;
            }
            .hero-bg-pattern {
                right: -30%;
                width: 80%;
                opacity: 0.04;
            }
            .hero-ring-decoration {
                width: 200px;
                height: 200px;
                right: -10%;
                bottom: 0;
            }
        }
        @media (max-width: 520px) {
            .hero-title {
                font-size: 28px;
            }
            .hero-subtitle {
                font-size: 15px;
            }
            .btn-primary,
            .btn-outline {
                padding: 12px 22px;
                font-size: 14px;
            }
            .data-dashboard {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .data-card {
                padding: 16px;
            }
            .data-card-number {
                font-size: 30px;
            }
        }

        /* ========== SECTION TITLES ========== */
        .section {
            padding: var(--spacing-section) 0;
        }
        .section-alt {
            background: var(--color-bg-alt);
            position: relative;
            overflow: hidden;
        }
        .section-alt::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -120px;
            width: 400px;
            height: 400px;
            border: 2px dashed rgba(10, 30, 50, 0.04);
            border-radius: 50%;
            pointer-events: none;
        }
        .section-header {
            text-align: center;
            margin-bottom: 56px;
        }
        .section-tag {
            display: inline-block;
            padding: 5px 14px;
            background: rgba(123, 47, 255, 0.06);
            color: var(--color-accent-purple);
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
        }
        .section-title {
            font-size: 36px;
            font-weight: 600;
            color: var(--color-primary);
            line-height: 1.3;
            margin-bottom: 10px;
            letter-spacing: -0.2px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--color-text-light);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.7;
        }
        @media (max-width: 768px) {
            .section {
                padding: 72px 0;
            }
            .section-title {
                font-size: 26px;
            }
            .section-header {
                margin-bottom: 36px;
            }
        }

        /* ========== SERVICES SECTION ========== */
        .services-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
        }
        .service-card-large {
            flex: 0 0 calc(64% - 10px);
            background: var(--color-card-bg);
            border-radius: var(--radius-card);
            padding: 36px 32px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-normal);
            border: 2px solid transparent;
            position: relative;
            overflow: hidden;
            display: flex;
            gap: 28px;
            align-items: flex-start;
        }
        .service-card-large:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: var(--color-accent-orange);
        }
        .service-card-large .service-card-img {
            flex: 0 0 200px;
            height: 160px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            background: #F4F7FB;
        }
        .service-card-large .service-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .service-card-large .service-card-body {
            flex: 1;
        }
        .service-icon-circle {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(255, 107, 53, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--color-accent-orange);
            margin-bottom: 14px;
            flex-shrink: 0;
        }
        .service-card-title {
            font-size: 20px;
            font-weight: 500;
            color: var(--color-primary);
            margin-bottom: 8px;
            line-height: 1.3;
        }
        .service-card-desc {
            font-size: 15px;
            color: var(--color-text-light);
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .service-card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-accent-orange);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: gap var(--transition-fast);
        }
        .service-card-link:hover {
            gap: 8px;
            color: var(--color-accent-orange-dark);
        }

        .service-cards-stack {
            flex: 0 0 calc(36% - 10px);
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .service-card-small {
            background: var(--color-card-bg);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-normal);
            border: 2px solid transparent;
            flex: 1;
        }
        .service-card-small:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: var(--color-accent-orange);
        }
        .service-card-small .service-icon-circle {
            width: 38px;
            height: 38px;
            font-size: 16px;
            margin-bottom: 10px;
        }
        .service-card-small .service-card-title {
            font-size: 17px;
            margin-bottom: 4px;
        }
        .service-card-small .service-card-desc {
            font-size: 14px;
            margin-bottom: 6px;
        }

        .services-row-bottom {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 20px;
            width: 100%;
            flex: 1 0 100%;
        }
        .service-card-standard {
            background: var(--color-card-bg);
            border-radius: var(--radius-card);
            padding: 28px 22px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-normal);
            border: 2px solid transparent;
            text-align: center;
        }
        .service-card-standard:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: var(--color-accent-orange);
        }
        .service-card-standard .service-icon-circle {
            margin-left: auto;
            margin-right: auto;
        }
        .service-card-standard .service-card-title {
            font-size: 18px;
        }
        .service-card-standard .service-card-desc {
            font-size: 14px;
        }

        @media (max-width: 1024px) {
            .service-card-large {
                flex: 0 0 100%;
                flex-direction: column;
            }
            .service-card-large .service-card-img {
                flex: 0 0 auto;
                width: 100%;
                height: 180px;
            }
            .service-cards-stack {
                flex: 0 0 100%;
                flex-direction: row;
                gap: 16px;
            }
            .service-cards-stack .service-card-small {
                flex: 1;
            }
            .services-row-bottom {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .services-grid {
                flex-direction: column;
            }
            .service-card-large {
                flex: 1;
            }
            .service-cards-stack {
                flex-direction: column;
            }
            .services-row-bottom {
                grid-template-columns: 1fr;
            }
        }

        /* ========== CONTRAST SECTION ========== */
        .contrast-wrapper {
            display: flex;
            gap: 0;
            align-items: stretch;
            position: relative;
        }
        .contrast-col {
            flex: 1;
            padding: 40px 36px;
            border-radius: var(--radius-card);
        }
        .contrast-col-left {
            background: #F8F9FB;
            border: 1px solid var(--color-border-light);
        }
        .contrast-col-right {
            background: #EDF2FA;
            border: 1px solid #D6E0F0;
            position: relative;
        }
        .contrast-col-right::before {
            content: '';
            position: absolute;
            inset: 8px;
            border-radius: calc(var(--radius-card) - 4px);
            border: 1px dashed rgba(10, 30, 50, 0.06);
            pointer-events: none;
        }
        .contrast-vs {
            position: absolute;
            left: 50%;
            top: 50%;
            transform: translate(-50%, -50%);
            width: 52px;
            height: 52px;
            background: #FFFFFF;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
            color: var(--color-accent-orange);
            box-shadow: 0 4px 16px rgba(10, 30, 50, 0.1);
            z-index: 2;
            letter-spacing: 1px;
            border: 3px solid rgba(255, 107, 53, 0.2);
        }
        .contrast-col-title {
            font-size: 22px;
            font-weight: 600;
            margin-bottom: 20px;
            text-align: center;
        }
        .contrast-col-left .contrast-col-title {
            color: #8A94A3;
        }
        .contrast-col-right .contrast-col-title {
            color: var(--color-primary);
        }
        .contrast-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .contrast-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 15px;
            color: var(--color-text);
            padding: 10px 14px;
            background: #FFFFFF;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
        }
        .contrast-list li .contrast-num {
            font-weight: 700;
            font-size: 18px;
            flex-shrink: 0;
            min-width: 40px;
            text-align: center;
        }
        .contrast-col-left .contrast-num {
            color: #8A94A3;
        }
        .contrast-col-right .contrast-num {
            color: var(--color-accent-orange);
        }
        @media (max-width: 768px) {
            .contrast-wrapper {
                flex-direction: column;
                gap: 28px;
            }
            .contrast-vs {
                position: relative;
                left: auto;
                top: auto;
                transform: none;
                margin: 0 auto;
            }
            .contrast-col {
                padding: 28px 20px;
            }
        }

        /* ========== FAQ SECTION ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .faq-item {
            background: var(--color-card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition-normal);
            border: 1px solid transparent;
        }
        .faq-item.active {
            border-color: rgba(255, 107, 53, 0.2);
            box-shadow: var(--shadow-card-hover);
        }
        .faq-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            cursor: pointer;
            user-select: none;
            gap: 16px;
            transition: background var(--transition-fast);
        }
        .faq-header:hover {
            background: rgba(244, 247, 251, 0.6);
        }
        .faq-question {
            font-weight: 600;
            font-size: 16px;
            color: var(--color-primary);
            flex: 1;
            line-height: 1.5;
        }
        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(255, 107, 53, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: transform var(--transition-normal);
            position: relative;
        }
        .faq-icon::before,
        .faq-icon::after {
            content: '';
            position: absolute;
            background: var(--color-accent-orange);
            border-radius: 2px;
            transition: all var(--transition-normal);
        }
        .faq-icon::before {
            width: 12px;
            height: 2px;
        }
        .faq-icon::after {
            width: 2px;
            height: 12px;
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background: rgba(255, 107, 53, 0.2);
        }
        .faq-body {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-normal);
        }
        .faq-item.active .faq-body {
            max-height: 300px;
        }
        .faq-answer {
            padding: 0 24px 20px;
            font-size: 15px;
            color: var(--color-text);
            line-height: 1.8;
        }
        @media (max-width: 768px) {
            .faq-header {
                padding: 16px 18px;
            }
            .faq-question {
                font-size: 15px;
            }
            .faq-answer {
                padding: 0 18px 16px;
                font-size: 14px;
            }
        }

        /* ========== CONTACT FORM SECTION ========== */
        .contact-section {
            background: var(--color-bg-alt);
            position: relative;
        }
        .contact-section::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -100px;
            width: 350px;
            height: 350px;
            border: 2px dashed rgba(10, 30, 50, 0.04);
            border-radius: 50%;
            pointer-events: none;
        }
        .form-wrapper {
            max-width: 760px;
            margin: 0 auto;
            background: var(--color-card-bg);
            border-radius: var(--radius-card);
            padding: 40px 36px;
            box-shadow: var(--shadow-card);
            position: relative;
            z-index: 1;
        }
        .form-row {
            display: flex;
            gap: 20px;
            align-items: flex-end;
        }
        .form-fields {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 5px;
        }
        .form-group label {
            font-size: 14px;
            font-weight: 500;
            color: var(--color-primary);
        }
        .form-group input,
        .form-group textarea {
            padding: 13px 16px;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            font-size: 15px;
            background: #FFFFFF;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
            color: var(--color-text);
            resize: vertical;
        }
        .form-group input:focus,
        .form-group textarea:focus {
            border-color: var(--color-accent-orange);
            box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.08);
            outline: none;
        }
        .form-group textarea {
            min-height: 80px;
        }
        .form-submit-wrap {
            flex-shrink: 0;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
        }
        .btn-submit {
            padding: 16px 40px;
            background: linear-gradient(135deg, var(--color-accent-orange), var(--color-accent-orange-dark));
            color: #FFFFFF;
            font-weight: 700;
            font-size: 16px;
            border-radius: var(--radius-lg);
            letter-spacing: 0.3px;
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
            overflow: hidden;
        }
        .btn-submit:hover {
            filter: brightness(1.1);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 107, 53, 0.35);
        }
        .btn-submit::after {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 0;
            height: 0;
            background: rgba(255, 255, 255, 0.25);
            border-radius: 50%;
            transform: translate(-50%, -50%);
            transition: width 0.5s, height 0.5s;
        }
        .btn-submit:active::after {
            width: 300px;
            height: 300px;
        }
        .form-privacy {
            font-size: 12px;
            color: var(--color-text-light);
            text-align: center;
        }
        @media (max-width: 768px) {
            .form-row {
                flex-direction: column;
                gap: 16px;
            }
            .form-wrapper {
                padding: 28px 18px;
            }
            .btn-submit {
                width: 100%;
                text-align: center;
                justify-content: center;
            }
        }

        /* ========== FOOTER ========== */
        .footer {
            background: var(--color-primary);
            color: rgba(255, 255, 255, 0.85);
            padding: 40px 0 28px;
        }
        .footer-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 20px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-logo-text {
            font-weight: 700;
            font-size: 18px;
            color: #FFFFFF;
            letter-spacing: 0.4px;
        }
        .footer-desc {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            max-width: 280px;
            line-height: 1.6;
        }
        .footer-contact {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            text-align: right;
            line-height: 1.8;
        }
        .footer-contact a {
            color: var(--color-accent-orange);
            font-weight: 500;
        }
        .footer-contact a:hover {
            text-decoration: underline;
            color: #FF8C60;
        }
        .footer-bottom {
            margin-top: 28px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }
        @media (max-width: 768px) {
            .footer-inner {
                flex-direction: column;
                text-align: center;
            }
            .footer-contact {
                text-align: center;
            }
            .footer-desc {
                max-width: 100%;
            }
        }

        /* ========== UTILITY ANIMATIONS ========== */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .animate-on-scroll {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .animate-on-scroll.visible {
            opacity: 1;
            transform: translateY(0);
        }