/* roulang page: index */
:root {
            --color-primary: #6B2D2D;
            --color-primary-light: #8B3D3D;
            --color-secondary: #C49A6C;
            --color-accent: #D4A843;
            --color-accent-hover: #C4952E;
            --color-success: #2D5A3D;
            --color-bg: #FAF7F4;
            --color-bg-alt: #F3EDE5;
            --color-bg-dark: #3E2723;
            --color-bg-darker: #2C1810;
            --color-text-heading: #2C1810;
            --color-text-body: #4A3F38;
            --color-text-muted: #8C7B6E;
            --color-white: #FFFFFF;
            --color-card-shadow: rgba(107, 45, 45, 0.06);
            --color-card-shadow-hover: rgba(107, 45, 45, 0.12);
            --color-overlay-dark: rgba(44, 24, 16, 0.75);
            --radius-xs: 6px;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-card: 0 4px 20px var(--color-card-shadow);
            --shadow-card-hover: 0 8px 32px var(--color-card-shadow-hover), 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-nav: 0 2px 24px rgba(0, 0, 0, 0.06);
            --font-serif: 'Noto Serif SC', 'STSong', 'SimSun', 'Songti SC', serif;
            --font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-display: 'Cormorant Garamond', 'Georgia', 'Times New Roman', serif;
            --font-ui: 'Inter', 'SF Pro Text', 'PingFang SC', sans-serif;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 64px;
            --spacing-2xl: 96px;
            --spacing-3xl: 128px;
            --spacing-section: 140px;
            --max-width: 1280px;
            --nav-height: 72px;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-bounce: 0.45s cubic-bezier(0.34, 1.56, 0.64, 1);
        }

        *,
        *::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;
            text-rendering: optimizeLegibility;
        }

        body {
            font-family: var(--font-sans);
            font-size: 17px;
            line-height: 1.75;
            color: var(--color-text-body);
            background-color: var(--color-bg);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        button {
            cursor: pointer;
            font-family: var(--font-sans);
            border: none;
            outline: none;
            background: none;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
            border-radius: var(--radius-xs);
        }

        input {
            font-family: var(--font-sans);
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding-left: 32px;
            padding-right: 32px;
        }

        @media (max-width: 768px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }
        }

        /* ============ HEADER / NAVIGATION ============ */
        #header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: background var(--transition-smooth), box-shadow var(--transition-smooth), backdrop-filter var(--transition-smooth);
            background: transparent;
        }

        #header.scrolled {
            background: rgba(250, 247, 244, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            box-shadow: var(--shadow-nav);
        }

        #header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 32px;
            height: 100%;
        }

        @media (max-width: 768px) {
            #header .header-inner {
                padding: 0 20px;
            }
        }

        .logo-wrapper {
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            line-height: 1;
            flex-shrink: 0;
        }

        .logo-main {
            font-family: var(--font-serif);
            font-weight: 600;
            font-size: 22px;
            color: var(--color-primary);
            letter-spacing: 2px;
            transition: color var(--transition-fast);
        }

        #header.scrolled .logo-main {
            color: var(--color-primary);
        }

        .logo-sub {
            font-family: var(--font-ui);
            font-weight: 400;
            font-size: 10px;
            color: var(--color-secondary);
            letter-spacing: 2.5px;
            text-transform: uppercase;
            margin-top: 2px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 36px;
            list-style: none;
            flex-shrink: 0;
        }

        .nav-links a {
            font-family: var(--font-sans);
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-body);
            padding: 6px 0;
            position: relative;
            letter-spacing: 0.5px;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--color-secondary);
            border-radius: 1px;
            transition: width var(--transition-smooth);
        }

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

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

        .nav-links a.active {
            color: var(--color-primary);
            font-weight: 600;
        }

        .nav-links a.active::after {
            width: 100%;
            background: var(--color-accent);
            height: 2px;
        }

        /* Hamburger */
        .hamburger-btn {
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            width: 44px;
            height: 44px;
            gap: 6px;
            z-index: 1001;
            flex-shrink: 0;
        }

        .hamburger-btn span {
            display: block;
            width: 26px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 1px;
            transition: all var(--transition-smooth);
            transform-origin: center;
        }

        #header.scrolled .hamburger-btn span {
            background: var(--color-primary);
        }

        .hamburger-btn.active span:nth-child(1) {
            transform: translateY(8px) rotate(45deg);
            background: var(--color-white);
        }
        .hamburger-btn.active span:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }
        .hamburger-btn.active span:nth-child(3) {
            transform: translateY(-8px) rotate(-45deg);
            background: var(--color-white);
        }

        @media (max-width: 767px) {
            .hamburger-btn {
                display: flex;
            }
            .nav-links {
                position: fixed;
                top: 0;
                right: 0;
                width: 100%;
                height: 100vh;
                background: var(--color-bg-dark);
                flex-direction: column;
                justify-content: center;
                align-items: center;
                gap: 40px;
                transform: translateX(100%);
                transition: transform var(--transition-smooth);
                z-index: 1000;
                padding: 60px 20px;
            }
            .nav-links.open {
                transform: translateX(0);
            }
            .nav-links a {
                color: var(--color-white);
                font-size: 20px;
                font-weight: 500;
                letter-spacing: 1px;
            }
            .nav-links a::after {
                background: var(--color-secondary);
            }
            .nav-links a:hover {
                color: var(--color-secondary);
            }
            .nav-links a.active {
                color: var(--color-accent);
            }
            .nav-links a.active::after {
                background: var(--color-accent);
            }
        }

        /* ============ HERO SECTION ============ */
        #hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
            background: var(--color-bg);
            padding-top: var(--nav-height);
        }

        #hero::before {
            content: '';
            position: absolute;
            top: -15%;
            right: -10%;
            width: 65%;
            height: 80%;
            background: radial-gradient(ellipse at center, rgba(196, 154, 108, 0.18) 0%, rgba(196, 154, 108, 0.04) 45%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
            z-index: 1;
        }

        #hero .hero-container {
            display: flex;
            align-items: center;
            gap: 64px;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 60px 32px;
            position: relative;
            z-index: 2;
        }

        @media (max-width: 768px) {
            #hero .hero-container {
                padding: 40px 20px;
            }
        }

        .hero-left {
            flex: 0 0 58%;
            display: flex;
            flex-direction: column;
            gap: 28px;
        }

        .hero-right {
            flex: 0 0 38%;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .hero-right img {
            width: 100%;
            border-radius: var(--radius-lg);
            box-shadow: 0 20px 60px rgba(107, 45, 45, 0.15), 0 4px 16px rgba(0, 0, 0, 0.06);
            object-fit: cover;
            aspect-ratio: 3/4;
            transition: transform var(--transition-smooth), box-shadow var(--transition-smooth);
        }

        .hero-right img:hover {
            transform: translateY(-6px);
            box-shadow: 0 28px 72px rgba(107, 45, 45, 0.2), 0 8px 24px rgba(0, 0, 0, 0.08);
        }

        .hero-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-family: var(--font-ui);
            font-size: 13px;
            font-weight: 500;
            color: var(--color-primary);
            letter-spacing: 3px;
            text-transform: uppercase;
            align-self: flex-start;
        }

        .hero-label::before {
            content: '';
            display: block;
            width: 32px;
            height: 1.5px;
            background: var(--color-accent);
            border-radius: 1px;
        }

        .hero-title {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 56px;
            line-height: 1.15;
            letter-spacing: -0.5px;
            color: var(--color-text-heading);
            margin: 0;
        }

        .hero-title .accent-word {
            color: var(--color-primary);
            position: relative;
        }

        .hero-subtitle {
            font-size: 18px;
            line-height: 1.7;
            color: var(--color-text-muted);
            max-width: 520px;
        }

        .hero-buttons {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-top: 4px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            font-family: var(--font-sans);
            font-weight: 600;
            font-size: 15px;
            letter-spacing: 0.5px;
            transition: all var(--transition-smooth);
            min-height: 48px;
            min-width: 44px;
            cursor: pointer;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--color-accent);
            color: var(--color-text-heading);
            border: none;
            box-shadow: 0 4px 16px rgba(212, 168, 67, 0.3);
        }

        .btn-primary:hover {
            background: var(--color-accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(212, 168, 67, 0.4);
            color: var(--color-text-heading);
        }

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

        .btn-outline:hover {
            background: var(--color-primary);
            color: var(--color-white);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(107, 45, 45, 0.2);
        }

        .btn-text {
            background: transparent;
            color: var(--color-secondary);
            padding: 6px 4px;
            border-bottom: 1px solid var(--color-secondary);
            border-radius: 0;
            font-weight: 500;
            min-height: auto;
            letter-spacing: 0.3px;
        }

        .btn-text:hover {
            color: var(--color-primary);
            border-bottom-color: var(--color-primary);
            border-bottom-width: 2px;
        }

        .hero-stats {
            display: flex;
            gap: 48px;
            flex-wrap: wrap;
            margin-top: 8px;
            padding-top: 16px;
            border-top: 1px solid rgba(140, 123, 110, 0.2);
        }

        .hero-stat-item {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .hero-stat-number {
            font-family: var(--font-display);
            font-size: 48px;
            font-weight: 700;
            color: var(--color-accent);
            line-height: 1;
            letter-spacing: -1px;
        }

        .hero-stat-unit {
            font-family: var(--font-display);
            font-size: 22px;
            font-weight: 600;
            color: var(--color-accent);
        }

        .hero-stat-label {
            font-size: 13px;
            color: var(--color-text-muted);
            letter-spacing: 0.5px;
        }

        @media (max-width: 1279px) {
            .hero-title {
                font-size: 44px;
            }
            .hero-subtitle {
                font-size: 16px;
            }
            #hero .hero-container {
                gap: 40px;
            }
            .hero-left {
                flex: 0 0 55%;
            }
            .hero-right {
                flex: 0 0 40%;
            }
            .hero-stat-number {
                font-size: 40px;
            }
        }

        @media (max-width: 1023px) {
            #hero .hero-container {
                flex-direction: column;
                gap: 48px;
                padding-top: 40px;
            }
            .hero-left {
                flex: 1 1 auto;
                text-align: center;
                align-items: center;
            }
            .hero-label {
                align-self: center;
            }
            .hero-subtitle {
                max-width: 100%;
                text-align: center;
            }
            .hero-stats {
                justify-content: center;
                border-top: none;
                padding-top: 8px;
            }
            .hero-right {
                flex: 1 1 auto;
                max-width: 420px;
                width: 100%;
            }
            .hero-right img {
                aspect-ratio: 4/3;
            }
            .hero-title {
                font-size: 38px;
                text-align: center;
            }
        }

        @media (max-width: 767px) {
            #hero {
                min-height: auto;
                padding-bottom: 40px;
            }
            .hero-title {
                font-size: 32px;
                letter-spacing: -0.2px;
            }
            .hero-subtitle {
                font-size: 15px;
            }
            .hero-stats {
                gap: 28px;
                flex-wrap: wrap;
                justify-content: center;
            }
            .hero-stat-number {
                font-size: 34px;
            }
            .hero-stat-unit {
                font-size: 18px;
            }
            .hero-right img {
                aspect-ratio: 16/10;
                border-radius: var(--radius-md);
            }
            .btn {
                padding: 12px 24px;
                font-size: 14px;
                min-height: 44px;
            }
            #hero .hero-container {
                gap: 32px;
                padding-top: 24px;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 28px;
            }
            .hero-buttons {
                flex-direction: column;
                width: 100%;
            }
            .hero-buttons .btn {
                width: 100%;
            }
            .hero-stats {
                gap: 20px;
            }
            .hero-stat-number {
                font-size: 28px;
            }
        }

        /* ============ SECTIONS COMMON ============ */
        section {
            padding: var(--spacing-section) 0;
        }

        @media (max-width: 1023px) {
            section {
                padding: 100px 0;
            }
        }

        @media (max-width: 767px) {
            section {
                padding: 72px 0;
            }
        }

        .section-header {
            text-align: center;
            margin-bottom: 64px;
        }

        .section-header .section-tag {
            display: inline-block;
            font-family: var(--font-ui);
            font-size: 13px;
            font-weight: 500;
            color: var(--color-secondary);
            letter-spacing: 3px;
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .section-header .section-title {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 42px;
            line-height: 1.25;
            color: var(--color-text-heading);
            margin: 0 0 16px;
        }

        .section-header .section-desc {
            font-size: 17px;
            color: var(--color-text-muted);
            max-width: 620px;
            margin: 0 auto;
            line-height: 1.7;
        }

        @media (max-width: 767px) {
            .section-header .section-title {
                font-size: 30px;
            }
            .section-header .section-desc {
                font-size: 15px;
            }
            .section-header {
                margin-bottom: 40px;
            }
        }

        @media (max-width: 520px) {
            .section-header .section-title {
                font-size: 26px;
            }
        }

        /* ============ HIGHLIGHTS GRID ============ */
        #highlights {
            background: var(--color-bg-alt);
        }

        .highlights-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 32px;
        }

        .highlight-card {
            background: var(--color-white);
            border-radius: var(--radius-md);
            padding: 36px 32px;
            box-shadow: var(--shadow-card);
            display: flex;
            align-items: flex-start;
            gap: 18px;
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .highlight-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition-smooth);
        }

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

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

        .highlight-icon {
            flex-shrink: 0;
            width: 52px;
            height: 52px;
            border-radius: var(--radius-sm);
            background: rgba(196, 154, 108, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--color-secondary);
            transition: all var(--transition-smooth);
        }

        .highlight-card:hover .highlight-icon {
            background: var(--color-secondary);
            color: var(--color-white);
        }

        .highlight-content h3 {
            font-family: var(--font-serif);
            font-weight: 600;
            font-size: 20px;
            color: var(--color-text-heading);
            margin: 0 0 6px;
            letter-spacing: 0.5px;
        }

        .highlight-content p {
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.6;
            margin: 0;
        }

        .highlight-content .highlight-number {
            font-family: var(--font-display);
            font-size: 36px;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1;
            margin-bottom: 4px;
            letter-spacing: -0.5px;
        }

        @media (max-width: 1279px) {
            .highlights-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
                padding: 0 24px;
            }
        }

        @media (max-width: 767px) {
            .highlights-grid {
                grid-template-columns: 1fr;
                gap: 16px;
                padding: 0 20px;
            }
            .highlight-card {
                padding: 24px 20px;
                gap: 14px;
            }
            .highlight-icon {
                width: 44px;
                height: 44px;
                font-size: 18px;
            }
            .highlight-content h3 {
                font-size: 17px;
            }
            .highlight-content .highlight-number {
                font-size: 28px;
            }
        }

        /* ============ SERVICES SECTION ============ */
        #services {
            background: var(--color-bg);
        }

        .services-masonry {
            columns: 3;
            column-gap: 28px;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 32px;
        }

        .service-card {
            break-inside: avoid;
            background: var(--color-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            margin-bottom: 28px;
            transition: all var(--transition-smooth);
            position: relative;
        }

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

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

        .service-card-body {
            padding: 28px 24px;
        }

        .service-card-body .service-tag {
            display: inline-block;
            font-family: var(--font-ui);
            font-size: 11px;
            font-weight: 600;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--color-secondary);
            margin-bottom: 8px;
        }

        .service-card-body h3 {
            font-family: var(--font-serif);
            font-weight: 600;
            font-size: 22px;
            color: var(--color-text-heading);
            margin: 0 0 10px;
            line-height: 1.35;
        }

        .service-card-body p {
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.7;
            margin: 0 0 16px;
        }

        .service-card-body .service-features {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 8px;
        }

        .service-features li {
            font-size: 12px;
            color: var(--color-primary);
            background: rgba(107, 45, 45, 0.06);
            padding: 4px 12px;
            border-radius: 20px;
            letter-spacing: 0.5px;
            font-weight: 500;
        }

        .service-card.no-image .service-card-body {
            padding: 32px 28px;
        }

        @media (max-width: 1279px) {
            .services-masonry {
                columns: 2;
                column-gap: 20px;
                padding: 0 24px;
            }
            .service-card {
                margin-bottom: 20px;
            }
        }

        @media (max-width: 767px) {
            .services-masonry {
                columns: 1;
                padding: 0 20px;
                column-gap: 0;
            }
            .service-card {
                margin-bottom: 16px;
            }
            .service-card-body h3 {
                font-size: 19px;
            }
        }

        /* ============ SOLUTIONS COMPARISON ============ */
        #solutions {
            background: var(--color-bg-alt);
        }

        .solutions-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 36px;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 32px;
        }

        .solution-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: 44px 36px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .solution-card.featured {
            border: 2px solid var(--color-accent);
            box-shadow: 0 8px 40px rgba(212, 168, 67, 0.18);
        }

        .solution-card.featured::after {
            content: '集团精选';
            position: absolute;
            top: 20px;
            right: 20px;
            background: var(--color-accent);
            color: var(--color-text-heading);
            font-size: 11px;
            font-weight: 700;
            letter-spacing: 2px;
            padding: 6px 14px;
            border-radius: 20px;
            font-family: var(--font-ui);
        }

        .solution-card h3 {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 26px;
            color: var(--color-text-heading);
            margin: 0 0 8px;
            letter-spacing: 0.5px;
        }

        .solution-card .solution-subtitle {
            font-size: 14px;
            color: var(--color-text-muted);
            margin-bottom: 24px;
            letter-spacing: 1px;
        }

        .solution-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .solution-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 15px;
            color: var(--color-text-body);
            line-height: 1.6;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            background: rgba(250, 247, 244, 0.7);
            transition: background var(--transition-fast);
        }

        .solution-list li:hover {
            background: rgba(196, 154, 108, 0.08);
        }

        .solution-list li .check-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            margin-top: 2px;
        }

        .check-icon.positive {
            background: var(--color-success);
            color: var(--color-white);
        }

        .check-icon.negative {
            background: rgba(140, 123, 110, 0.25);
            color: var(--color-text-muted);
        }

        @media (max-width: 1023px) {
            .solutions-wrapper {
                grid-template-columns: 1fr;
                gap: 24px;
                padding: 0 24px;
            }
            .solution-card {
                padding: 32px 24px;
            }
            .solution-card.featured::after {
                top: 14px;
                right: 14px;
                font-size: 10px;
                padding: 5px 10px;
            }
        }

        @media (max-width: 767px) {
            .solutions-wrapper {
                padding: 0 20px;
                gap: 16px;
            }
            .solution-card h3 {
                font-size: 22px;
            }
            .solution-list li {
                font-size: 14px;
                padding: 10px 12px;
                gap: 8px;
            }
        }

        /* ============ CASES SECTION ============ */
        #cases {
            background: var(--color-bg);
        }

        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 32px;
        }

        .case-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            cursor: pointer;
            aspect-ratio: 4/5;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
        }

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

        .case-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }

        .case-card:hover img {
            transform: scale(1.06);
        }

        .case-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(44, 24, 16, 0.05) 0%, rgba(44, 24, 16, 0.82) 55%, rgba(44, 24, 16, 0.94) 100%);
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 28px 24px;
            opacity: 0;
            transition: opacity var(--transition-smooth);
        }

        .case-card:hover .case-overlay {
            opacity: 1;
        }

        .case-overlay .case-category {
            font-family: var(--font-ui);
            font-size: 11px;
            font-weight: 600;
            letter-spacing: 2.5px;
            color: var(--color-accent);
            text-transform: uppercase;
            margin-bottom: 6px;
        }

        .case-overlay .case-title {
            font-family: var(--font-serif);
            font-weight: 600;
            font-size: 20px;
            color: var(--color-white);
            margin: 0 0 4px;
            line-height: 1.3;
        }

        .case-overlay .case-detail {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.78);
            line-height: 1.5;
            margin: 0;
        }

        .case-card .case-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            background: var(--color-white);
            color: var(--color-primary);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 1px;
            padding: 6px 14px;
            border-radius: 20px;
            z-index: 3;
            font-family: var(--font-ui);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
            transition: all var(--transition-smooth);
        }

        .case-card:hover .case-badge {
            background: var(--color-accent);
            color: var(--color-text-heading);
        }

        @media (max-width: 1279px) {
            .cases-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
                padding: 0 24px;
            }
            .case-card {
                aspect-ratio: 3/4;
            }
        }

        @media (max-width: 767px) {
            .cases-grid {
                grid-template-columns: 1fr;
                gap: 16px;
                padding: 0 20px;
            }
            .case-card {
                aspect-ratio: 16/11;
            }
            .case-overlay {
                opacity: 1;
                background: linear-gradient(180deg, rgba(44, 24, 16, 0.02) 0%, rgba(44, 24, 16, 0.7) 50%, rgba(44, 24, 16, 0.9) 100%);
                padding: 20px 16px;
            }
        }

        /* ============ FAQ SECTION ============ */
        #faq {
            background: var(--color-bg-alt);
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
            max-width: 800px;
            margin: 0 auto;
            padding: 0 32px;
        }

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

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            padding: 22px 28px;
            cursor: pointer;
            font-family: var(--font-sans);
            font-weight: 600;
            font-size: 17px;
            color: var(--color-text-heading);
            background: none;
            border: none;
            text-align: left;
            gap: 16px;
            transition: color var(--transition-fast);
            letter-spacing: 0.3px;
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: rgba(107, 45, 45, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            color: var(--color-primary);
            transition: all var(--transition-smooth);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth), padding var(--transition-smooth);
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
        }

        .faq-answer-inner {
            padding: 0 28px 22px;
            font-size: 15px;
            color: var(--color-text-body);
            line-height: 1.8;
        }

        @media (max-width: 767px) {
            .faq-list {
                padding: 0 20px;
                gap: 10px;
            }
            .faq-question {
                padding: 18px 20px;
                font-size: 15px;
            }
            .faq-answer-inner {
                padding: 0 20px 18px;
                font-size: 14px;
            }
            .faq-question .faq-icon {
                width: 28px;
                height: 28px;
                font-size: 11px;
            }
        }

        /* ============ CTA SECTION ============ */
        #cta {
            background: var(--color-bg-dark);
            position: relative;
            overflow: hidden;
            text-align: center;
            padding: 120px 0;
        }

        #cta::before {
            content: '';
            position: absolute;
            top: -30%;
            left: 50%;
            transform: translateX(-50%);
            width: 80%;
            height: 160%;
            background: radial-gradient(ellipse at center, rgba(196, 154, 108, 0.13) 0%, transparent 65%);
            pointer-events: none;
        }

        #cta .container {
            position: relative;
            z-index: 2;
        }

        #cta .cta-title {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 42px;
            color: var(--color-white);
            margin: 0 0 16px;
            letter-spacing: 0.5px;
        }

        #cta .cta-subtitle {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.7);
            margin: 0 0 40px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.7;
        }

        #cta .cta-buttons {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 48px;
        }

        #cta .btn-primary {
            box-shadow: 0 6px 24px rgba(212, 168, 67, 0.35);
        }

        #cta .btn-outline-light {
            background: transparent;
            color: var(--color-white);
            border: 1.5px solid rgba(255, 255, 255, 0.5);
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            letter-spacing: 0.5px;
            transition: all var(--transition-smooth);
            min-height: 48px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            cursor: pointer;
        }

        #cta .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: var(--color-white);
            transform: translateY(-2px);
        }

        .trust-badges {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 40px;
            flex-wrap: wrap;
        }

        .trust-badge {
            display: flex;
            align-items: center;
            gap: 8px;
            color: rgba(255, 255, 255, 0.6);
            font-size: 13px;
            letter-spacing: 1px;
            font-family: var(--font-ui);
        }

        .trust-badge i {
            color: var(--color-secondary);
            font-size: 16px;
        }

        @media (max-width: 767px) {
            #cta {
                padding: 80px 0;
            }
            #cta .cta-title {
                font-size: 30px;
            }
            #cta .cta-subtitle {
                font-size: 15px;
                margin-bottom: 28px;
            }
            #cta .cta-buttons {
                flex-direction: column;
                width: 100%;
                max-width: 340px;
                margin-left: auto;
                margin-right: auto;
                gap: 12px;
            }
            #cta .cta-buttons .btn,
            #cta .cta-buttons .btn-outline-light {
                width: 100%;
            }
            .trust-badges {
                gap: 20px;
            }
            .trust-badge {
                font-size: 11px;
            }
        }

        @media (max-width: 520px) {
            #cta .cta-title {
                font-size: 26px;
            }
        }

        /* ============ FOOTER ============ */
        #footer {
            background: var(--color-bg-darker);
            color: rgba(255, 255, 255, 0.7);
            padding: 72px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1.5fr 1.5fr;
            gap: 40px;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 32px 48px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .footer-col h4 {
            font-family: var(--font-serif);
            font-weight: 600;
            font-size: 16px;
            color: var(--color-white);
            margin: 0 0 16px;
            letter-spacing: 1px;
        }

        .footer-col p {
            font-size: 14px;
            line-height: 1.7;
            margin: 0;
            color: rgba(255, 255, 255, 0.55);
        }

        .footer-col ul {
            list-style: none;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-fast);
            letter-spacing: 0.3px;
        }

        .footer-col ul li a:hover {
            color: var(--color-secondary);
        }

        .footer-contact-item {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            margin-bottom: 12px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
        }

        .footer-contact-item i {
            color: var(--color-secondary);
            margin-top: 3px;
            flex-shrink: 0;
        }

        .footer-bottom {
            text-align: center;
            padding: 24px 32px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
            letter-spacing: 0.5px;
            max-width: var(--max-width);
            margin: 0 auto;
        }

        @media (max-width: 1023px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 767px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
                padding: 0 20px 36px;
            }
            #footer {
                padding: 56px 0 0;
            }
            .footer-bottom {
                padding: 20px;
                font-size: 12px;
            }
        }

        /* ============ SCROLL TO TOP ============ */
        .scroll-top-btn {
            position: fixed;
            bottom: 32px;
            right: 32px;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--color-primary);
            color: var(--color-white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            z-index: 999;
            opacity: 0;
            transform: translateY(20px);
            pointer-events: none;
            transition: all var(--transition-smooth);
            box-shadow: 0 4px 16px rgba(107, 45, 45, 0.3);
            cursor: pointer;
        }

        .scroll-top-btn.visible {
            opacity: 1;
            transform: translateY(0);
            pointer-events: auto;
        }

        .scroll-top-btn:hover {
            background: var(--color-primary-light);
            transform: translateY(-3px);
            box-shadow: 0 8px 24px rgba(107, 45, 45, 0.4);
        }

        @media (max-width: 767px) {
            .scroll-top-btn {
                bottom: 20px;
                right: 20px;
                width: 42px;
                height: 42px;
                font-size: 16px;
            }
        }

        /* ============ ANIMATIONS ============ */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(32px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .animate-on-scroll {
            opacity: 0;
            transform: translateY(28px);
            transition: opacity 0.7s ease, transform 0.7s ease;
        }

        .animate-on-scroll.visible {
            opacity: 1;
            transform: translateY(0);
        }