/* roulang page: index */
:root {
            --color-bg: #0C0C0C;
            --color-bg-alt: #1A1A1A;
            --color-card: #2A2A2A;
            --color-card-border: #3A3A3A;
            --color-purple: #8A2BE2;
            --color-purple-light: #A855F7;
            --color-gold: #F59E0B;
            --color-gold-dark: #FF8C00;
            --color-gold-hover: #FFA726;
            --color-text: #F5F5F5;
            --color-text-muted: #B0B0B0;
            --color-text-dim: #888888;
            --color-input-bg: #1A1A1A;
            --color-input-border: #444444;
            --font-heading: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', '黑体', sans-serif;
            --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-number: 'Inter', 'Space Grotesk', 'SF Mono', 'Consolas', monospace;
            --max-width: 1280px;
            --nav-height: 72px;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 50px;
            --shadow-card: 0 8px 30px rgba(0, 0, 0, 0.4);
            --shadow-card-hover: 0 14px 40px rgba(0, 0, 0, 0.6);
            --shadow-glow-gold: 0 0 22px rgba(245, 158, 11, 0.35);
            --shadow-glow-purple: 0 0 18px rgba(138, 43, 226, 0.3);
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.3s ease;
            --transition-slow: 0.5s cubic-bezier(0.25, 0.1, 0.25, 1);
        }

        *,
        *::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(--color-bg);
            color: var(--color-text);
            line-height: 1.75;
            min-height: 100vh;
            overflow-x: hidden;
            letter-spacing: 0.02em;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        a:focus-visible {
            outline: 2px solid var(--color-purple-light);
            outline-offset: 4px;
            border-radius: 4px;
        }

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

        button {
            cursor: pointer;
            border: none;
            font-family: inherit;
            font-size: inherit;
            transition: all var(--transition-smooth);
        }
        button:focus-visible {
            outline: 2px solid var(--color-purple-light);
            outline-offset: 4px;
        }

        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }
        input:focus-visible,
        textarea:focus-visible {
            outline: none;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 32px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 24px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 18px;
            }
        }

        /* ========== HEADER / NAV ========== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: background-color var(--transition-smooth), backdrop-filter var(--transition-smooth), box-shadow var(--transition-smooth);
            background-color: transparent;
            backdrop-filter: none;
        }
        .header.scrolled {
            background-color: rgba(12, 12, 12, 0.88);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            box-shadow: 0 2px 24px rgba(0, 0, 0, 0.5);
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .logo {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 1.5rem;
            letter-spacing: 0.06em;
            color: var(--color-text);
            white-space: nowrap;
            position: relative;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            flex-shrink: 0;
        }
        .logo-text {
            background: linear-gradient(135deg, #ffffff 0%, #d4c5f0 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
        }
        .nav-links a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text-muted);
            position: relative;
            padding: 6px 0;
            transition: color var(--transition-fast);
            letter-spacing: 0.03em;
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--color-purple-light);
            border-radius: 1px;
            transition: width var(--transition-smooth);
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: #ffffff;
        }
        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 6px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 10px;
            z-index: 1001;
            min-width: 44px;
            min-height: 44px;
            align-items: center;
            justify-content: center;
        }
        .hamburger span {
            display: block;
            width: 26px;
            height: 2px;
            background-color: var(--color-text);
            border-radius: 2px;
            transition: all var(--transition-smooth);
            transform-origin: center;
        }
        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(6px, -6px);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            inset: 0;
            background-color: rgba(10, 10, 10, 0.97);
            z-index: 999;
            flex-direction: column;
            justify-content: center;
            align-items: flex-start;
            padding: 80px 40px;
            gap: 32px;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition-smooth);
        }
        .mobile-menu.open {
            display: flex;
            opacity: 1;
            pointer-events: auto;
        }
        .mobile-menu a {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-text);
            letter-spacing: 0.04em;
            padding: 12px 0;
            min-height: 44px;
            display: flex;
            align-items: center;
            transition: color var(--transition-fast);
        }
        .mobile-menu a:hover {
            color: var(--color-purple-light);
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .mobile-menu {
                display: flex;
            }
        }

        /* ========== HERO ========== */
        .hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(12, 12, 12, 0.55) 0%, rgba(12, 12, 12, 0.7) 40%, rgba(10, 5, 20, 0.85) 100%);
            z-index: 1;
        }
        .hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(138, 43, 226, 0.15) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 30%, rgba(245, 158, 11, 0.08) 0%, transparent 55%);
            z-index: 2;
        }
        .hero .container {
            position: relative;
            z-index: 3;
            padding-top: var(--nav-height);
            padding-bottom: 80px;
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            gap: 28px;
            max-width: 780px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(138, 43, 226, 0.2);
            border: 1px solid rgba(168, 85, 247, 0.35);
            border-radius: 50px;
            padding: 8px 20px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-purple-light);
            letter-spacing: 0.05em;
        }
        .hero-badge .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: var(--color-gold);
            animation: pulse-dot 1.8s ease-in-out infinite;
        }
        @keyframes pulse-dot {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.7);
            }
            50% {
                box-shadow: 0 0 0 10px rgba(245, 158, 11, 0);
            }
        }
        .hero h1 {
            font-family: var(--font-heading);
            font-size: clamp(2.4rem, 5.5vw, 3.8rem);
            font-weight: 900;
            line-height: 1.2;
            letter-spacing: 0.03em;
            color: #ffffff;
            max-width: 700px;
        }
        .hero h1 .highlight {
            background: linear-gradient(135deg, var(--color-gold) 0%, var(--color-gold-dark) 50%, var(--color-gold-hover) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-subtitle {
            font-size: 1.1rem;
            color: var(--color-text-muted);
            max-width: 560px;
            line-height: 1.8;
        }
        .hero-pain-hook {
            font-size: 0.95rem;
            color: var(--color-text-dim);
            border-left: 3px solid var(--color-purple-light);
            padding-left: 16px;
            max-width: 500px;
            line-height: 1.7;
        }
        .hero-cta-group {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-top: 8px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: var(--radius-lg);
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.04em;
            transition: all var(--transition-smooth);
            white-space: nowrap;
            min-height: 48px;
            min-width: 44px;
        }
        .btn-primary {
            background-color: var(--color-gold);
            color: #0C0C0C;
            box-shadow: var(--shadow-glow-gold);
            border: none;
        }
        .btn-primary:hover {
            background-color: var(--color-gold-hover);
            transform: scale(1.04);
            box-shadow: 0 0 28px rgba(245, 158, 11, 0.5);
        }
        .btn-secondary {
            background: transparent;
            color: var(--color-purple-light);
            border: 2px solid var(--color-purple-light);
        }
        .btn-secondary:hover {
            background-color: var(--color-purple-light);
            color: #0C0C0C;
            box-shadow: var(--shadow-glow-purple);
            transform: scale(1.04);
        }
        .btn-ghost {
            background: transparent;
            color: var(--color-purple-light);
            border: none;
            padding: 10px 0;
        }
        .btn-ghost:hover {
            text-decoration: underline;
            text-underline-offset: 5px;
            color: var(--color-purple-light);
        }

        @media (max-width: 768px) {
            .hero .container {
                gap: 20px;
                padding-bottom: 60px;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .btn {
                padding: 12px 24px;
                font-size: 0.9rem;
            }
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: 100px 0;
            position: relative;
        }
        @media (max-width: 768px) {
            .section {
                padding: 64px 0;
            }
        }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            color: var(--color-purple-light);
            text-transform: uppercase;
            margin-bottom: 12px;
        }
        .section h2 {
            font-family: var(--font-heading);
            font-size: clamp(1.8rem, 3.5vw, 2.5rem);
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 16px;
            letter-spacing: 0.03em;
            color: #ffffff;
        }
        .section-intro {
            color: var(--color-text-muted);
            font-size: 1.05rem;
            max-width: 600px;
            margin-bottom: 48px;
            line-height: 1.8;
        }

        /* ========== PAIN POINTS ========== */
        #pain-points {
            background-color: var(--color-bg);
        }
        .pain-item {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            margin-bottom: 72px;
        }
        .pain-item:last-child {
            margin-bottom: 0;
        }
        .pain-item.reverse {
            direction: rtl;
        }
        .pain-item.reverse .pain-content {
            direction: ltr;
        }
        .pain-content {
            position: relative;
            padding-left: 24px;
            border-left: 5px solid var(--color-purple-light);
        }
        .pain-content h3 {
            font-family: var(--font-heading);
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: #ffffff;
            letter-spacing: 0.03em;
        }
        .pain-content p {
            color: var(--color-text-muted);
            line-height: 1.8;
            font-size: 1rem;
        }
        .pain-content .pain-quote-mark {
            font-size: 4rem;
            line-height: 1;
            color: var(--color-purple-light);
            opacity: 0.5;
            font-family: var(--font-heading);
            font-weight: 900;
            margin-bottom: -16px;
            display: block;
        }
        .pain-img-wrapper {
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--color-card-border);
            box-shadow: var(--shadow-card);
        }
        .pain-img-wrapper img {
            width: 100%;
            height: auto;
            display: block;
        }

        @media (max-width: 768px) {
            .pain-item {
                grid-template-columns: 1fr;
                gap: 24px;
                margin-bottom: 48px;
                direction: ltr;
            }
            .pain-item.reverse {
                direction: ltr;
            }
            .pain-content {
                padding-left: 16px;
                border-left-width: 4px;
            }
            .pain-content h3 {
                font-size: 1.3rem;
            }
        }

        /* ========== SOLUTIONS ========== */
        #solutions {
            background-color: var(--color-bg-alt);
        }
        .solutions-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 32px;
            align-items: start;
        }
        .solution-main {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .solution-card-large {
            background-color: var(--color-card);
            border: 1px solid var(--color-card-border);
            border-radius: var(--radius-md);
            padding: 36px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            display: flex;
            gap: 28px;
            align-items: flex-start;
        }
        .solution-card-large:hover {
            border-color: var(--color-purple-light);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .solution-card-large .solution-icon {
            flex-shrink: 0;
            width: 56px;
            height: 56px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            background: rgba(138, 43, 226, 0.15);
            border-radius: var(--radius-sm);
            color: var(--color-purple-light);
        }
        .solution-card-large .solution-info h3 {
            font-family: var(--font-heading);
            font-size: 1.35rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: #ffffff;
        }
        .solution-card-large .solution-info p {
            color: var(--color-text-muted);
            line-height: 1.7;
        }
        .solution-side {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .solution-card-compact {
            background-color: var(--color-card);
            border: 1px solid var(--color-card-border);
            border-radius: var(--radius-md);
            padding: 24px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            cursor: pointer;
        }
        .solution-card-compact:hover {
            border-color: var(--color-purple-light);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .solution-card-compact h4 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.05rem;
            color: #ffffff;
            margin-bottom: 4px;
        }
        .solution-card-compact p {
            color: var(--color-text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
        }
        .solution-img-block {
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--color-card-border);
            box-shadow: var(--shadow-card);
            margin-top: 12px;
        }
        .solution-img-block img {
            width: 100%;
            height: auto;
            display: block;
        }

        @media (max-width: 1024px) {
            .solutions-grid {
                grid-template-columns: 1fr;
            }
            .solution-side {
                flex-direction: row;
                flex-wrap: wrap;
            }
            .solution-card-compact {
                flex: 1 1 200px;
            }
        }
        @media (max-width: 768px) {
            .solution-card-large {
                flex-direction: column;
                padding: 24px;
                gap: 16px;
            }
            .solution-side {
                flex-direction: column;
            }
            .solution-card-compact {
                flex: auto;
            }
        }

        /* ========== RESULTS / KPI ========== */
        #results {
            background-color: var(--color-bg);
        }
        .kpi-row {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
            justify-content: space-between;
        }
        .kpi-item {
            flex: 1 1 180px;
            text-align: left;
            padding: 32px 0;
            position: relative;
        }
        .kpi-item:nth-child(1) {
            flex: 1.4;
        }
        .kpi-item:nth-child(2) {
            flex: 1.1;
        }
        .kpi-item:nth-child(3) {
            flex: 1;
        }
        .kpi-number {
            font-family: var(--font-number);
            font-size: clamp(3rem, 5.5vw, 4.5rem);
            font-weight: 900;
            color: var(--color-gold);
            line-height: 1;
            letter-spacing: -0.02em;
            font-variant-numeric: tabular-nums;
        }
        .kpi-unit {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--color-text-muted);
            margin-left: 4px;
            font-family: var(--font-body);
        }
        .kpi-label {
            display: block;
            margin-top: 8px;
            font-size: 0.95rem;
            color: var(--color-text-muted);
            letter-spacing: 0.03em;
        }
        .kpi-divider {
            width: 1px;
            background: linear-gradient(180deg, transparent 0%, var(--color-purple-light) 50%, transparent 100%);
            align-self: stretch;
            flex-shrink: 0;
            opacity: 0.5;
        }
        @media (max-width: 768px) {
            .kpi-row {
                flex-direction: column;
                gap: 8px;
            }
            .kpi-divider {
                width: 100%;
                height: 1px;
                background: linear-gradient(90deg, transparent 0%, var(--color-purple-light) 50%, transparent 100%);
            }
            .kpi-item {
                text-align: center;
                padding: 20px 0;
            }
            .kpi-number {
                font-size: 2.6rem;
            }
        }

        /* ========== TESTIMONIALS ========== */
        #testimonials {
            background-color: var(--color-bg-alt);
            overflow: hidden;
        }
        .testimonials-scroll {
            display: flex;
            gap: 24px;
            overflow-x: auto;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
            padding-bottom: 12px;
            scrollbar-width: thin;
            scrollbar-color: var(--color-card-border) transparent;
        }
        .testimonials-scroll::-webkit-scrollbar {
            height: 6px;
        }
        .testimonials-scroll::-webkit-scrollbar-track {
            background: transparent;
        }
        .testimonials-scroll::-webkit-scrollbar-thumb {
            background-color: var(--color-card-border);
            border-radius: 3px;
        }
        .testimonial-card {
            flex: 0 0 380px;
            scroll-snap-align: start;
            background-color: var(--color-card);
            border: 1px solid var(--color-card-border);
            border-radius: var(--radius-md);
            padding: 28px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .testimonial-card:hover {
            border-color: var(--color-purple-light);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .testimonial-avatar {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--color-purple-light) 0%, var(--color-gold-dark) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.2rem;
            color: #ffffff;
            flex-shrink: 0;
        }
        .testimonial-quote {
            font-size: 1rem;
            line-height: 1.8;
            color: #e0e0e0;
            font-style: italic;
            position: relative;
            padding-left: 0;
        }
        .testimonial-author {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 0.95rem;
            color: #ffffff;
        }
        .testimonial-org {
            font-size: 0.85rem;
            color: var(--color-text-muted);
        }
        @media (max-width: 768px) {
            .testimonial-card {
                flex: 0 0 290px;
                padding: 20px;
            }
        }

        /* ========== FAQ ========== */
        #faq {
            background-color: var(--color-bg);
        }
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 800px;
        }
        .faq-item {
            background-color: var(--color-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-smooth);
            border-left: 0px solid var(--color-purple-light);
        }
        .faq-item.open {
            border-left: 4px solid var(--color-purple-light);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            background: none;
            border: none;
            padding: 20px 24px;
            font-size: 1rem;
            font-weight: 600;
            color: #ffffff;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            cursor: pointer;
            min-height: 44px;
            letter-spacing: 0.03em;
            font-family: var(--font-body);
        }
        .faq-question .faq-marker {
            font-family: var(--font-number);
            color: var(--color-purple-light);
            font-weight: 700;
            font-size: 0.9rem;
            flex-shrink: 0;
            letter-spacing: 0;
        }
        .faq-question .faq-arrow {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: transform var(--transition-smooth);
            color: var(--color-text-muted);
            font-size: 1.1rem;
        }
        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            color: var(--color-purple-light);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-smooth);
            padding: 0 24px;
            color: var(--color-text-muted);
            line-height: 1.8;
            font-size: 0.95rem;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* ========== CONTACT ========== */
        #contact {
            background-color: var(--color-bg-alt);
        }
        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: start;
        }
        .contact-info h2 {
            margin-bottom: 12px;
        }
        .contact-info .contact-tagline {
            font-size: 1.1rem;
            color: var(--color-purple-light);
            font-weight: 600;
            margin-bottom: 16px;
            letter-spacing: 0.03em;
        }
        .contact-info p {
            color: var(--color-text-muted);
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .contact-detail {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 10px;
            color: var(--color-text-muted);
            font-size: 0.95rem;
        }
        .contact-detail .contact-icon {
            width: 32px;
            height: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(138, 43, 226, 0.15);
            border-radius: 50%;
            color: var(--color-purple-light);
            flex-shrink: 0;
            font-size: 0.85rem;
        }
        .contact-form-wrap {
            background-color: var(--color-card);
            border: 1px solid var(--color-card-border);
            border-radius: var(--radius-md);
            padding: 32px;
            box-shadow: var(--shadow-card);
        }
        .form-group {
            margin-bottom: 20px;
            position: relative;
        }
        .form-group label {
            display: block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-text-muted);
            margin-bottom: 6px;
            transition: color var(--transition-fast);
            letter-spacing: 0.03em;
        }
        .form-group input,
        .form-group textarea {
            width: 100%;
            background-color: var(--color-input-bg);
            border: 1px solid var(--color-input-border);
            border-radius: var(--radius-sm);
            padding: 14px 16px;
            color: #ffffff;
            font-size: 1rem;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
            letter-spacing: 0.02em;
        }
        .form-group input:focus,
        .form-group textarea:focus {
            border-color: var(--color-purple-light);
            box-shadow: 0 0 0 3px rgba(168, 85, 247, 0.15);
            outline: none;
        }
        .form-group textarea {
            resize: vertical;
            min-height: 100px;
        }
        .form-group input::placeholder,
        .form-group textarea::placeholder {
            color: #555;
        }
        .form-submit-btn {
            width: 100%;
            padding: 16px 32px;
            background-color: var(--color-gold);
            color: #0C0C0C;
            border-radius: var(--radius-lg);
            font-weight: 700;
            font-size: 1rem;
            letter-spacing: 0.05em;
            box-shadow: var(--shadow-glow-gold);
            min-height: 48px;
        }
        .form-submit-btn:hover {
            background-color: var(--color-gold-hover);
            transform: scale(1.02);
            box-shadow: 0 0 28px rgba(245, 158, 11, 0.5);
        }
        .form-success {
            display: none;
            text-align: center;
            padding: 40px 20px;
            color: var(--color-gold);
            font-weight: 700;
            font-size: 1.1rem;
            letter-spacing: 0.03em;
        }
        .form-success.show {
            display: block;
        }
        .form-success .check-icon {
            font-size: 3rem;
            display: block;
            margin-bottom: 12px;
        }
        @media (max-width: 768px) {
            .contact-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .contact-form-wrap {
                padding: 20px;
            }
            .form-group input,
            .form-group textarea {
                font-size: 16px;
            }
        }

        /* ========== FOOTER ========== */
        .footer {
            background-color: var(--color-bg);
            border-top: 1px solid rgba(138, 43, 226, 0.3);
            padding: 40px 0;
            text-align: center;
        }
        .footer-logo {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 1.3rem;
            letter-spacing: 0.06em;
            color: #ffffff;
            margin-bottom: 12px;
        }
        .footer-info {
            font-size: 0.85rem;
            color: var(--color-text-dim);
            line-height: 1.8;
        }
        .footer-social {
            display: flex;
            justify-content: center;
            gap: 16px;
            margin: 16px 0;
            list-style: none;
        }
        .footer-social a {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background-color: var(--color-card);
            color: var(--color-text-muted);
            transition: all var(--transition-fast);
            font-size: 0.9rem;
            min-width: 44px;
            min-height: 44px;
        }
        .footer-social a:hover {
            background-color: var(--color-purple-light);
            color: #ffffff;
        }
        .back-to-top {
            display: inline-block;
            margin-top: 12px;
            color: var(--color-purple-light);
            font-weight: 600;
            font-size: 0.9rem;
            letter-spacing: 0.04em;
            cursor: pointer;
            transition: color var(--transition-fast);
            min-height: 44px;
            line-height: 44px;
        }
        .back-to-top:hover {
            color: var(--color-gold);
        }

        /* ========== ANIMATIONS ========== */
        .fade-in {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.7s ease, transform 0.7s ease;
        }
        .fade-in.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* ========== UTILS ========== */
        @media (max-width: 520px) {
            .section {
                padding: 48px 0;
            }
            .section h2 {
                font-size: 1.5rem;
            }
            .hero-cta-group {
                flex-direction: column;
                width: 100%;
            }
            .hero-cta-group .btn {
                width: 100%;
            }
        }