/* roulang page: index */
:root {
            --bg-deep: #0B0C0E;
            --bg-card: #15171A;
            --bg-footer: #050508;
            --gold: #C9A96E;
            --gold-light: #D4B87A;
            --gold-dark: #B8934F;
            --purple: #9B59B6;
            --purple-light: #B07DCC;
            --cyan: #00D2FF;
            --text-primary: #F0EDE8;
            --text-secondary: #B8B5AE;
            --text-muted: #7A7670;
            --border-subtle: #2A2D33;
            --border-gold: rgba(201, 169, 110, 0.35);
            --border-purple: rgba(155, 89, 182, 0.4);
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --shadow-gold-sm: 0 0 20px rgba(201, 169, 110, 0.15);
            --shadow-gold-lg: 0 0 40px rgba(201, 169, 110, 0.3);
            --shadow-purple-sm: 0 0 20px rgba(155, 89, 182, 0.2);
            --shadow-purple-lg: 0 0 40px rgba(155, 89, 182, 0.4);
            --shadow-cyan: 0 0 28px rgba(0, 210, 255, 0.25);
            --font-heading: 'Poppins', 'Orbitron', 'Noto Sans SC', '思源黑体', sans-serif;
            --font-body: 'Inter', 'Noto Sans SC', '思源黑体', sans-serif;
            --max-width: 1280px;
            --nav-height: 72px;
            --section-padding: 100px;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.35s 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);
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--bg-deep);
            color: var(--text-primary);
            line-height: 1.7;
            min-height: 100vh;
            overflow-x: hidden;
            letter-spacing: 0.01em;
        }

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

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

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

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

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

        /* ========== NAVIGATION ========== */
        .nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(11, 12, 14, 0.85);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(201, 169, 110, 0.12);
            transition: background var(--transition-smooth), box-shadow var(--transition-smooth);
        }

        .nav.scrolled {
            background: rgba(11, 12, 14, 0.94);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
            border-bottom-color: rgba(201, 169, 110, 0.25);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            z-index: 1001;
        }

        .nav-logo-icon {
            position: relative;
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .nav-logo-icon svg {
            width: 100%;
            height: 100%;
        }

        .nav-logo-icon .diamond {
            fill: none;
            stroke: var(--gold);
            stroke-width: 2.2;
            filter: drop-shadow(0 0 6px rgba(201, 169, 110, 0.5));
        }

        .nav-logo-icon .bolt {
            fill: var(--gold);
            filter: drop-shadow(0 0 4px rgba(201, 169, 110, 0.7));
        }

        .nav-logo-text {
            font-family: var(--font-heading);
            font-weight: 800;
            font-size: 1.35rem;
            color: var(--gold);
            letter-spacing: 0.06em;
            white-space: nowrap;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
        }

        .nav-links a {
            display: inline-block;
            padding: 8px 16px;
            font-size: 0.9rem;
            font-weight: 500;
            color: #E0DDD8;
            border-radius: var(--radius-sm);
            letter-spacing: 0.03em;
            position: relative;
            transition: color var(--transition-fast), background var(--transition-fast);
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%) scaleX(0);
            width: 60%;
            height: 2px;
            background: var(--gold);
            border-radius: 2px;
            transition: transform var(--transition-smooth);
        }

        .nav-links a:hover,
        .nav-links a:focus-visible {
            color: #fff;
            background: rgba(201, 169, 110, 0.08);
        }

        .nav-links a:hover::after,
        .nav-links a:focus-visible::after {
            transform: translateX(-50%) scaleX(1);
        }

        .nav-cta {
            background: var(--gold) !important;
            color: var(--bg-deep) !important;
            font-weight: 700 !important;
            padding: 9px 20px !important;
            border-radius: var(--radius-sm) !important;
            letter-spacing: 0.04em !important;
            transition: all var(--transition-smooth) !important;
        }

        .nav-cta:hover {
            background: var(--purple) !important;
            color: #fff !important;
            box-shadow: var(--shadow-purple-lg) !important;
        }

        .nav-cta::after {
            display: none !important;
        }

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

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

        .mobile-menu {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            background: rgba(11, 12, 14, 0.96);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            z-index: 999;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 12px;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition-smooth);
        }

        .mobile-menu.active {
            opacity: 1;
            pointer-events: all;
        }

        .mobile-menu a {
            font-size: 1.4rem;
            font-weight: 600;
            color: #E0DDD8;
            padding: 14px 28px;
            border-radius: var(--radius-md);
            letter-spacing: 0.05em;
            transition: all var(--transition-fast);
        }

        .mobile-menu a:hover {
            color: var(--gold);
            background: rgba(201, 169, 110, 0.08);
        }

        .mobile-menu .mobile-cta {
            background: var(--gold);
            color: var(--bg-deep);
            font-weight: 700;
            margin-top: 8px;
        }
        .mobile-menu .mobile-cta:hover {
            background: var(--purple);
            color: #fff;
        }

        /* ========== HERO ========== */
        .hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            background: linear-gradient(rgba(11, 12, 14, 0.55), rgba(11, 12, 14, 0.72)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            background-attachment: fixed;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 65% 40%, rgba(201, 169, 110, 0.06) 0%, transparent 60%),
                radial-gradient(ellipse at 30% 60%, rgba(155, 89, 182, 0.05) 0%, transparent 55%);
            pointer-events: none;
            z-index: 0;
        }

        .hero-crosshair {
            position: absolute;
            pointer-events: none;
            z-index: 0;
        }

        .hero-crosshair-dot {
            position: absolute;
            width: 4px;
            height: 4px;
            background: var(--gold);
            border-radius: 50%;
            box-shadow: 0 0 14px rgba(201, 169, 110, 0.8), 0 0 40px rgba(201, 169, 110, 0.4);
            animation: crosshairPulse 2.5s ease-in-out infinite;
        }

        .hero-crosshair-ring {
            position: absolute;
            width: 28px;
            height: 28px;
            border: 1.5px solid rgba(201, 169, 110, 0.5);
            border-radius: 50%;
            animation: crosshairRotate 8s linear infinite;
        }
        .hero-crosshair-ring:nth-child(3) {
            width: 48px;
            height: 48px;
            border-color: rgba(201, 169, 110, 0.25);
            animation-duration: 14s;
            animation-direction: reverse;
        }

        @keyframes crosshairPulse {
            0%,
            100% {
                transform: scale(1);
                opacity: 0.8;
            }
            50% {
                transform: scale(2.2);
                opacity: 0.3;
            }
        }
        @keyframes crosshairRotate {
            from {
                transform: rotate(0deg);
            }
            to {
                transform: rotate(360deg);
            }
        }

        .hero-particle {
            position: absolute;
            width: 2px;
            height: 2px;
            background: var(--cyan);
            border-radius: 50%;
            pointer-events: none;
            z-index: 0;
            animation: particleFloat 6s ease-in-out infinite;
            box-shadow: 0 0 8px rgba(0, 210, 255, 0.6);
        }
        .hero-particle:nth-child(odd) {
            background: var(--purple-light);
            box-shadow: 0 0 8px rgba(155, 89, 182, 0.6);
            animation-delay: -3s;
            animation-duration: 7s;
        }
        @keyframes particleFloat {
            0%,
            100% {
                transform: translateY(0) translateX(0);
                opacity: 0;
            }
            15% {
                opacity: 1;
            }
            50% {
                transform: translateY(-60px) translateX(25px);
                opacity: 0.7;
            }
            85% {
                opacity: 1;
            }
            100% {
                transform: translateY(-10px) translateX(-10px);
                opacity: 0;
            }
        }

        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 800px;
            padding: 40px 24px;
        }

        .hero-badge {
            display: inline-block;
            padding: 7px 18px;
            border: 1px solid var(--border-gold);
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--gold);
            margin-bottom: 28px;
            background: rgba(201, 169, 110, 0.06);
            text-transform: uppercase;
        }

        .hero h1 {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: clamp(2.4rem, 5.5vw, 4rem);
            color: #fff;
            line-height: 1.15;
            letter-spacing: 0.02em;
            margin-bottom: 18px;
            position: relative;
            display: inline-block;
        }

        .hero h1::before {
            content: '';
            position: absolute;
            left: -36px;
            top: 50%;
            transform: translateY(-50%);
            width: 6px;
            height: 70%;
            background: var(--gold);
            border-radius: 3px;
            box-shadow: 0 0 16px rgba(201, 169, 110, 0.6);
        }
        .hero h1::after {
            content: '';
            position: absolute;
            right: -36px;
            top: 50%;
            transform: translateY(-50%);
            width: 6px;
            height: 70%;
            background: var(--gold);
            border-radius: 3px;
            box-shadow: 0 0 16px rgba(201, 169, 110, 0.6);
        }

        .hero-subtitle {
            font-size: 1.15rem;
            color: #C5C0B8;
            margin-bottom: 36px;
            font-weight: 400;
            letter-spacing: 0.04em;
            line-height: 1.6;
        }

        .hero-subtitle strong {
            color: var(--gold);
            font-weight: 600;
        }

        .btn {
            display: inline-block;
            padding: 14px 32px;
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.05em;
            border-radius: var(--radius-sm);
            transition: all var(--transition-smooth);
            text-align: center;
            cursor: pointer;
            position: relative;
            overflow: hidden;
        }

        .btn-primary {
            background: var(--gold);
            color: var(--bg-deep);
            box-shadow: var(--shadow-gold-sm);
        }
        .btn-primary:hover {
            background: var(--purple);
            color: #fff;
            box-shadow: var(--shadow-purple-lg);
            transform: translateY(-2px);
        }

        .btn-outline {
            background: transparent;
            color: var(--gold);
            border: 1.5px solid var(--gold);
            box-shadow: none;
        }
        .btn-outline:hover {
            background: rgba(201, 169, 110, 0.1);
            color: #fff;
            border-color: var(--gold-light);
            box-shadow: var(--shadow-gold-sm);
            transform: translateY(-2px);
        }

        .btn-group {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            justify-content: center;
        }

        /* ========== STATS ========== */
        .stats-section {
            padding: var(--section-padding) 0;
            position: relative;
            background:
                radial-gradient(ellipse at 50% 30%, rgba(201, 169, 110, 0.04) 0%, transparent 70%),
                url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            background-blend-mode: overlay;
            background-color: var(--bg-deep);
        }

        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background:
                repeating-linear-gradient(0deg, rgba(201, 169, 110, 0.015) 0px, rgba(201, 169, 110, 0.015) 1px, transparent 1px, transparent 40px),
                repeating-linear-gradient(90deg, rgba(201, 169, 110, 0.015) 0px, rgba(201, 169, 110, 0.015) 1px, transparent 1px, transparent 40px);
            pointer-events: none;
            z-index: 0;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
            position: relative;
            z-index: 1;
        }

        .stat-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            text-align: center;
            position: relative;
            transition: all var(--transition-smooth);
            box-shadow: 0 0 0px rgba(201, 169, 110, 0);
        }

        .stat-card:hover {
            border-color: var(--border-gold);
            box-shadow: var(--shadow-gold-lg);
            transform: translateY(-6px);
        }

        .stat-card::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: var(--gold);
            transition: width var(--transition-smooth);
            border-radius: 2px;
        }
        .stat-card:hover::after {
            width: 60%;
        }

        .stat-number {
            font-family: 'Orbitron', 'Poppins', var(--font-heading);
            font-weight: 900;
            font-size: clamp(2.2rem, 4vw, 3.2rem);
            color: var(--gold);
            letter-spacing: 0.03em;
            line-height: 1;
            margin-bottom: 8px;
            text-shadow: 0 0 30px rgba(201, 169, 110, 0.3);
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            font-weight: 500;
            letter-spacing: 0.04em;
        }

        .stat-icon {
            display: inline-block;
            font-size: 1.6rem;
            color: var(--gold);
            margin-bottom: 12px;
            opacity: 0.8;
        }

        /* ========== SERVICES ========== */
        .services-section {
            padding: var(--section-padding) 0;
            background: var(--bg-deep);
        }

        .section-header {
            text-align: center;
            margin-bottom: 60px;
        }

        .section-header h2 {
            font-family: var(--font-heading);
            font-weight: 800;
            font-size: clamp(1.8rem, 3.5vw, 2.6rem);
            color: #fff;
            letter-spacing: 0.03em;
            margin-bottom: 10px;
        }

        .section-header .section-line {
            display: inline-block;
            width: 60px;
            height: 3px;
            background: var(--gold);
            border-radius: 3px;
            box-shadow: 0 0 12px rgba(201, 169, 110, 0.5);
        }

        .section-header p {
            color: var(--text-secondary);
            margin-top: 12px;
            font-size: 1rem;
            letter-spacing: 0.03em;
        }

        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            align-items: start;
        }

        .service-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            position: relative;
            transition: all var(--transition-smooth);
            overflow: hidden;
            box-shadow: 0 0 0px rgba(201, 169, 110, 0);
        }

        .service-card.card-tall {
            padding-top: 40px;
            padding-bottom: 40px;
            border-top: 3px solid var(--gold);
            box-shadow: 0 6px 30px rgba(0, 0, 0, 0.3);
        }

        .service-card.card-tilt {
            transform: rotate(1.8deg);
            border-left: 2px solid rgba(155, 89, 182, 0.4);
        }
        .service-card.card-tilt:hover {
            transform: rotate(0deg) translateY(-8px);
        }

        .service-card.card-glow {
            border-right: 2px solid rgba(155, 89, 182, 0.3);
            box-shadow: 0 0 30px rgba(155, 89, 182, 0.08);
        }
        .service-card.card-glow::after {
            content: '';
            position: absolute;
            top: -50%;
            right: -50%;
            width: 180px;
            height: 180px;
            background: radial-gradient(circle, rgba(155, 89, 182, 0.2) 0%, transparent 70%);
            pointer-events: none;
            border-radius: 50%;
            transition: all var(--transition-smooth);
        }
        .service-card.card-glow:hover::after {
            width: 240px;
            height: 240px;
            opacity: 1;
        }

        .service-card:hover {
            border-color: var(--purple);
            box-shadow: var(--shadow-purple-lg);
            transform: translateY(-8px);
        }
        .service-card.card-tall:hover {
            transform: translateY(-8px);
            border-top-color: var(--purple);
        }
        .service-card.card-glow:hover {
            transform: translateY(-8px);
            border-right-color: var(--purple);
        }

        .service-card-img {
            width: 100%;
            height: 140px;
            object-fit: cover;
            border-radius: var(--radius-sm);
            margin-bottom: 18px;
            border: 1px solid var(--border-subtle);
        }

        .service-card-icon {
            font-size: 2rem;
            color: var(--gold);
            margin-bottom: 14px;
            display: inline-block;
        }

        .service-card h3 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.2rem;
            color: #fff;
            margin-bottom: 8px;
            letter-spacing: 0.03em;
        }

        .service-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
            letter-spacing: 0.02em;
        }

        .service-card .card-tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 14px;
            font-size: 0.7rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            margin-top: 14px;
            background: rgba(201, 169, 110, 0.1);
            color: var(--gold);
            border: 1px solid rgba(201, 169, 110, 0.3);
            text-transform: uppercase;
        }

        /* ========== RESULTS ========== */
        .results-section {
            padding: var(--section-padding) 0;
            background: var(--bg-card);
            position: relative;
        }

        .results-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 70% 50%, rgba(155, 89, 182, 0.05) 0%, transparent 60%);
            pointer-events: none;
        }

        .results-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .results-compare {
            background: rgba(21, 23, 26, 0.8);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 32px;
        }

        .results-compare h3 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 20px;
            letter-spacing: 0.04em;
            color: #fff;
        }

        .compare-row {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 14px 0;
            border-bottom: 1px dashed rgba(255, 255, 255, 0.06);
        }
        .compare-row:last-child {
            border-bottom: none;
        }

        .compare-label {
            flex: 0 0 100px;
            font-weight: 600;
            font-size: 0.85rem;
            color: var(--text-secondary);
            letter-spacing: 0.03em;
        }

        .compare-bar-wrap {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .compare-bar {
            height: 10px;
            border-radius: 5px;
            transition: width 1.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

        .compare-bar.old {
            background: #3A3530;
            box-shadow: inset 0 0 8px rgba(0, 0, 0, 0.3);
        }
        .compare-bar.new {
            background: linear-gradient(90deg, var(--gold-dark), var(--gold), var(--gold-light));
            box-shadow: 0 0 12px rgba(201, 169, 110, 0.4);
        }

        .compare-val {
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            flex: 0 0 44px;
            text-align: right;
        }
        .compare-val.old-val {
            color: #6B6560;
        }
        .compare-val.new-val {
            color: var(--gold);
        }

        .results-visual {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
        }

        .results-visual img {
            width: 100%;
            height: auto;
            display: block;
        }

        .results-visual .results-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 24px;
            background: linear-gradient(transparent, rgba(11, 12, 14, 0.9));
            text-align: center;
        }

        .results-overlay span {
            font-family: var(--font-heading);
            font-weight: 800;
            font-size: 1.4rem;
            color: var(--gold);
            letter-spacing: 0.05em;
            text-shadow: 0 0 20px rgba(201, 169, 110, 0.5);
        }

        .results-badge {
            display: inline-block;
            background: var(--purple);
            color: #fff;
            padding: 6px 16px;
            border-radius: 20px;
            font-weight: 700;
            font-size: 0.8rem;
            letter-spacing: 0.06em;
            margin-bottom: 10px;
        }

        /* ========== FAQ ========== */
        .faq-section {
            padding: var(--section-padding) 0;
            background: var(--bg-deep);
        }

        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .faq-item {
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-smooth);
            background: var(--bg-card);
        }

        .faq-item:hover {
            border-color: rgba(201, 169, 110, 0.25);
        }

        .faq-item.active {
            border-color: var(--border-gold);
            box-shadow: var(--shadow-gold-sm);
        }

        .faq-question {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 18px 22px;
            cursor: pointer;
            user-select: none;
            transition: background var(--transition-fast);
            font-weight: 600;
            font-size: 1rem;
            color: #fff;
            letter-spacing: 0.03em;
        }

        .faq-question:hover {
            background: rgba(201, 169, 110, 0.04);
        }

        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 2px solid var(--gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            color: var(--gold);
            transition: all var(--transition-smooth);
            font-weight: 700;
        }

        .faq-item.active .faq-icon {
            background: var(--gold);
            color: var(--bg-deep);
            border-color: var(--gold);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth), padding var(--transition-smooth);
            padding: 0 22px;
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.7;
            letter-spacing: 0.02em;
            border-top: 0px dashed transparent;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 16px 22px 20px;
            border-top: 1px dashed rgba(201, 169, 110, 0.2);
        }

        /* ========== CTA / CONTACT ========== */
        .contact-section {
            padding: var(--section-padding) 0;
            position: relative;
            background:
                radial-gradient(ellipse at 40% 50%, rgba(201, 169, 110, 0.06) 0%, transparent 65%),
                url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
            background-color: var(--bg-deep);
            background-blend-mode: overlay;
        }

        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .contact-info h2 {
            font-family: var(--font-heading);
            font-weight: 800;
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            color: #fff;
            letter-spacing: 0.03em;
            margin-bottom: 16px;
        }

        .contact-info p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
            margin-bottom: 24px;
            letter-spacing: 0.02em;
        }

        .contact-trust {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            align-items: center;
        }

        .trust-badge {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--gold);
            font-weight: 600;
            letter-spacing: 0.04em;
            background: rgba(201, 169, 110, 0.06);
            padding: 10px 16px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(201, 169, 110, 0.2);
        }

        .trust-badge i {
            font-size: 1.2rem;
        }

        .contact-form-wrap {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 36px;
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
        }

        .form-group {
            margin-bottom: 18px;
        }

        .form-group label {
            display: block;
            font-size: 0.85rem;
            font-weight: 600;
            color: #C5C0B8;
            margin-bottom: 6px;
            letter-spacing: 0.03em;
        }

        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 13px 16px;
            background: #1A1C20;
            border: 1px solid #333;
            border-radius: var(--radius-sm);
            color: #E0DDD8;
            font-size: 0.9rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-smooth);
        }

        .form-group input:focus,
        .form-group textarea:focus {
            border-color: var(--gold);
            box-shadow: 0 0 18px rgba(201, 169, 110, 0.2);
            outline: none;
            background: #1E2026;
        }

        .form-group textarea {
            min-height: 100px;
        }

        .form-submit {
            width: 100%;
            padding: 15px;
            background: var(--gold);
            color: var(--bg-deep);
            font-weight: 700;
            font-size: 1rem;
            letter-spacing: 0.06em;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: all var(--transition-smooth);
            border: none;
        }

        .form-submit:hover {
            background: var(--purple);
            color: #fff;
            box-shadow: var(--shadow-purple-lg);
            transform: translateY(-2px);
        }

        .form-message {
            margin-top: 12px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            text-align: center;
            min-height: 20px;
            transition: all var(--transition-fast);
        }
        .form-message.success {
            color: #4CAF50;
        }
        .form-message.error {
            color: #E57373;
        }

        /* ========== FOOTER ========== */
        .footer {
            background: var(--bg-footer);
            padding: 48px 0 28px;
            border-top: 1px solid rgba(201, 169, 110, 0.1);
        }

        .footer-inner {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 20px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-brand .nav-logo-text {
            font-size: 1.1rem;
        }

        .footer-links {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }

        .footer-links a {
            font-size: 0.85rem;
            color: var(--text-muted);
            letter-spacing: 0.03em;
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--gold);
        }

        .footer-social {
            display: flex;
            gap: 10px;
        }

        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: 1.5px solid #3A3530;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
            color: #8A8580;
            transition: all var(--transition-smooth);
        }
        .footer-social a:hover {
            border-color: var(--gold);
            color: var(--gold);
            box-shadow: var(--shadow-gold-sm);
        }

        .footer-copy {
            text-align: center;
            margin-top: 24px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            font-size: 0.8rem;
            color: var(--text-muted);
            letter-spacing: 0.04em;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 18px;
            }
            .services-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .service-card.card-tilt {
                transform: rotate(0deg);
            }
            .service-card.card-tilt:hover {
                transform: translateY(-8px);
            }
            .results-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .contact-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero h1::before,
            .hero h1::after {
                display: none;
            }
            .hero h1 {
                padding: 0 10px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-padding: 64px;
            }
            .nav-links {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .mobile-menu {
                display: flex;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stat-card {
                padding: 24px 16px;
            }
            .stat-number {
                font-size: 1.8rem;
            }
            .services-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .service-card.card-tall {
                padding-top: 28px;
                padding-bottom: 28px;
            }
            .service-card.card-glow::after {
                display: none;
            }
            .results-grid {
                grid-template-columns: 1fr;
            }
            .contact-grid {
                grid-template-columns: 1fr;
            }
            .contact-form-wrap {
                padding: 24px;
            }
            .hero {
                background-attachment: scroll;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .hero-subtitle {
                font-size: 0.95rem;
            }
            .btn {
                padding: 12px 24px;
                font-size: 0.85rem;
            }
            .footer-inner {
                flex-direction: column;
                text-align: center;
                gap: 16px;
            }
            .footer-links {
                justify-content: center;
            }
            .footer-social {
                justify-content: center;
            }
            .section-header {
                margin-bottom: 36px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 14px;
                padding-right: 14px;
            }
            .stats-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .stat-card {
                padding: 20px 14px;
            }
            .stat-number {
                font-size: 1.6rem;
            }
            .btn-group {
                flex-direction: column;
                align-items: center;
            }
            .hero-content {
                padding: 24px 12px;
            }
            .compare-label {
                flex: 0 0 70px;
                font-size: 0.75rem;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 0.9rem;
            }
            .contact-form-wrap {
                padding: 18px;
            }
        }

        /* Utility */
        .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;
        }

        .reveal-on-scroll {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.7s ease, transform 0.7s ease;
        }
        .reveal-on-scroll.revealed {
            opacity: 1;
            transform: translateY(0);
        }