/* roulang page: index */
:root {
            --bg-deep: #0B0C10;
            --bg-card: #1F1F3A;
            --neon-orange: #FF5E13;
            --neon-cyan: #00F2FE;
            --neon-magenta: #D40078;
            --text-white: #FFFFFF;
            --text-gray: #C5C6C7;
            --text-muted: #8D8D99;
            --radius: 12px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
            --shadow-neon-orange: 0 0 18px rgba(255, 94, 19, 0.6);
            --shadow-neon-cyan: 0 0 18px rgba(0, 242, 254, 0.5);
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1280px;
            --section-gap: 120px;
            --section-gap-mobile: 80px;
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 80px;
        }

        body {
            font-family: 'Noto Sans SC', 'Source Han Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            background-color: var(--bg-deep);
            color: var(--text-gray);
            line-height: 1.8;
            font-size: 1rem;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        .font-tech {
            font-family: 'Orbitron', 'Rajdhani', 'Noto Sans SC', sans-serif;
        }
        .font-number {
            font-family: 'Orbitron', 'Rajdhani', monospace;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-smooth);
        }
        button {
            cursor: pointer;
            border: none;
            outline: none;
            font-family: inherit;
        }
        input,
        textarea {
            font-family: inherit;
            outline: none;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 5vw;
        }

        /* ========== NAVBAR ========== */
        .navbar {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            transition: background var(--transition-smooth), box-shadow var(--transition-smooth);
            padding: 16px 0;
        }
        .navbar.scrolled {
            background: var(--bg-deep);
            box-shadow: 0 1px 0 rgba(255, 94, 19, 0.25), 0 4px 24px rgba(0, 0, 0, 0.6);
            padding: 10px 0;
        }
        .navbar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 5vw;
        }
        .navbar-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: 'Orbitron', 'Rajdhani', sans-serif;
            font-weight: 800;
            font-size: 1.35rem;
            color: var(--neon-orange);
            letter-spacing: 1px;
            white-space: nowrap;
            text-shadow: 0 0 12px rgba(255, 94, 19, 0.5);
        }
        .navbar-logo .logo-icon {
            width: 32px;
            height: 32px;
            flex-shrink: 0;
        }
        .navbar-logo .logo-icon svg {
            width: 100%;
            height: 100%;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
        }
        .nav-links a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-gray);
            position: relative;
            padding: 4px 0;
            letter-spacing: 0.5px;
            transition: color var(--transition-smooth);
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--neon-cyan);
            transition: width var(--transition-smooth);
            border-radius: 1px;
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: var(--neon-cyan);
        }
        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 6px;
            cursor: pointer;
            z-index: 1001;
            background: none;
            border: none;
            padding: 4px;
        }
        .hamburger span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--text-white);
            border-radius: 2px;
            transition: var(--transition-smooth);
        }
        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(6px, 6px);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(6px, -6px);
        }

        @media (max-width: 768px) {
            .hamburger {
                display: flex;
            }
            .nav-links {
                position: fixed;
                top: 0;
                right: -100%;
                width: 100%;
                height: 100vh;
                background: rgba(11, 12, 16, 0.97);
                backdrop-filter: blur(20px);
                flex-direction: column;
                justify-content: center;
                align-items: center;
                gap: 36px;
                transition: right var(--transition-smooth);
                z-index: 999;
            }
            .nav-links.open {
                right: 0;
            }
            .nav-links a {
                font-size: 1.3rem;
                color: var(--text-white);
            }
            .nav-links a:hover {
                color: var(--neon-cyan);
            }
        }

        /* ========== HERO ========== */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            background: url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
            background-attachment: fixed;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at center, transparent 30%, rgba(11, 12, 16, 0.7) 70%, rgba(11, 12, 16, 0.9) 100%);
            z-index: 1;
        }
        .hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background:
                radial-gradient(circle at 20% 30%, rgba(255, 94, 19, 0.08) 0%, transparent 50%),
                radial-gradient(circle at 70% 60%, rgba(0, 242, 254, 0.06) 0%, transparent 50%),
                radial-gradient(circle at 50% 80%, rgba(212, 0, 120, 0.05) 0%, transparent 50%);
            z-index: 2;
            animation: heroPulse 6s ease-in-out infinite alternate;
        }
        @keyframes heroPulse {
            0% {
                opacity: 0.7;
            }
            100% {
                opacity: 1;
            }
        }
        .hero-content {
            position: relative;
            z-index: 3;
            text-align: center;
            max-width: 900px;
            padding: 0 5vw;
        }
        .hero h1 {
            font-family: 'Orbitron', 'Noto Sans SC', sans-serif;
            font-size: clamp(2.2rem, 6vw, 4.5rem);
            font-weight: 900;
            line-height: 1.15;
            color: var(--text-white);
            text-shadow: 0 0 30px rgba(255, 94, 19, 0.55), 0 0 60px rgba(255, 94, 19, 0.25);
            margin-bottom: 20px;
            letter-spacing: 2px;
        }
        .hero h1 .highlight {
            color: var(--neon-orange);
            text-shadow: 0 0 40px rgba(255, 94, 19, 0.8), 0 0 80px rgba(255, 94, 19, 0.4);
        }
        .hero-subtitle {
            font-size: clamp(1.1rem, 2vw, 1.35rem);
            color: var(--text-gray);
            margin-bottom: 36px;
            font-weight: 400;
            letter-spacing: 1px;
            line-height: 1.6;
        }
        .btn-primary {
            display: inline-block;
            background: linear-gradient(135deg, #FF5E13, #D40078);
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            letter-spacing: 2px;
            padding: 16px 40px;
            border-radius: 50px;
            text-transform: uppercase;
            transition: all var(--transition-smooth);
            box-shadow: 0 4px 20px rgba(255, 94, 19, 0.35);
            position: relative;
            overflow: hidden;
            cursor: pointer;
            border: none;
        }
        .btn-primary:hover {
            box-shadow: 0 0 30px rgba(255, 94, 19, 0.7), 0 8px 32px rgba(212, 0, 120, 0.5);
            transform: translateY(-2px);
            filter: brightness(1.1);
        }
        .btn-primary:active {
            transform: scale(0.97);
            transition: transform 0.1s ease;
        }
        .hero-scroll-indicator {
            position: absolute;
            bottom: 30px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 4;
            animation: bounceDown 2s ease-in-out infinite;
        }
        .hero-scroll-indicator svg {
            width: 28px;
            height: 28px;
            fill: none;
            stroke: var(--neon-cyan);
            stroke-width: 2;
        }
        @keyframes bounceDown {
            0%,
            100% {
                transform: translateX(-50%) translateY(0);
            }
            50% {
                transform: translateX(-50%) translateY(12px);
            }
        }

        @media (max-width: 768px) {
            .hero {
                background-attachment: scroll;
            }
            .hero h1 {
                letter-spacing: 1px;
            }
            .btn-primary {
                padding: 14px 30px;
                font-size: 0.9rem;
                letter-spacing: 1px;
            }
        }

        /* ========== SECTION COMMON ========== */
        .section {
            padding: var(--section-gap) 0;
            position: relative;
        }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 3px;
            text-transform: uppercase;
            color: var(--neon-cyan);
            margin-bottom: 8px;
        }
        .section-title {
            font-size: clamp(2rem, 3.5vw, 2.6rem);
            font-weight: 700;
            color: var(--text-white);
            text-align: center;
            margin-bottom: 12px;
            letter-spacing: 1px;
        }
        .section-title-underline {
            width: 80px;
            height: 3px;
            background: linear-gradient(90deg, var(--neon-orange), var(--neon-magenta));
            margin: 0 auto 48px;
            border-radius: 2px;
            box-shadow: 0 0 12px rgba(255, 94, 19, 0.5);
        }
        .section-subtitle {
            text-align: center;
            color: var(--text-muted);
            font-size: 1.05rem;
            max-width: 600px;
            margin: -28px auto 48px;
        }

        @media (max-width: 768px) {
            .section {
                padding: var(--section-gap-mobile) 0;
            }
            .section-title {
                font-size: 1.7rem;
            }
        }

        /* ========== SOLUTIONS ========== */
        #solutions {
            background: var(--bg-deep);
            position: relative;
        }
        #solutions::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background:
                radial-gradient(ellipse at 80% 20%, rgba(0, 242, 254, 0.04) 0%, transparent 60%),
                radial-gradient(ellipse at 20% 80%, rgba(255, 94, 19, 0.04) 0%, transparent 60%);
            pointer-events: none;
        }
        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            position: relative;
            z-index: 1;
        }
        .solutions-grid .solution-card:nth-child(1) {
            grid-column: 1 / 3;
        }
        .solutions-grid .solution-card:nth-child(2) {
            grid-column: 3 / 4;
        }
        .solutions-grid .solution-card:nth-child(3) {
            grid-column: 1 / 2;
        }
        .solutions-grid .solution-card:nth-child(4) {
            grid-column: 2 / 4;
        }

        .solution-card {
            background: rgba(31, 31, 58, 0.7);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid rgba(0, 242, 254, 0.25);
            border-radius: var(--radius);
            padding: 32px 28px;
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .solution-card::before {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, transparent, var(--neon-orange), var(--neon-magenta), transparent);
            opacity: 0;
            transition: opacity var(--transition-smooth);
        }
        .solution-card:hover {
            border-color: var(--neon-orange);
            box-shadow: var(--shadow-neon-orange);
            transform: translateY(-6px);
        }
        .solution-card:hover::before {
            opacity: 1;
        }
        .solution-card .card-icon {
            width: 52px;
            height: 52px;
            margin-bottom: 18px;
            color: var(--neon-cyan);
            transition: all var(--transition-smooth);
        }
        .solution-card:hover .card-icon {
            color: var(--neon-orange);
            filter: drop-shadow(0 0 12px rgba(255, 94, 19, 0.7));
        }
        .solution-card .card-icon svg {
            width: 100%;
            height: 100%;
        }
        .solution-card h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 10px;
            letter-spacing: 0.5px;
        }
        .solution-card p {
            color: var(--text-gray);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .solution-card .card-badge {
            display: inline-block;
            margin-top: 14px;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--neon-cyan);
            letter-spacing: 1px;
            padding: 4px 12px;
            border: 1px solid rgba(0, 242, 254, 0.4);
            border-radius: 20px;
            transition: all var(--transition-smooth);
        }
        .solution-card:hover .card-badge {
            border-color: var(--neon-orange);
            color: var(--neon-orange);
            box-shadow: 0 0 10px rgba(255, 94, 19, 0.3);
        }

        @media (max-width: 768px) {
            .solutions-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .solutions-grid .solution-card:nth-child(1),
            .solutions-grid .solution-card:nth-child(2),
            .solutions-grid .solution-card:nth-child(3),
            .solutions-grid .solution-card:nth-child(4) {
                grid-column: auto;
            }
            .solution-card {
                padding: 24px 20px;
            }
            .solution-card h3 {
                font-size: 1.2rem;
            }
        }

        /* ========== RESULTS ========== */
        #results {
            background: var(--bg-card);
            position: relative;
            overflow: hidden;
            padding: 80px 0;
        }
        #results::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -20%;
            width: 140%;
            height: 200%;
            background: repeating-linear-gradient(135deg,
                    transparent,
                    transparent 30px,
                    rgba(255, 94, 19, 0.03) 30px,
                    rgba(255, 94, 19, 0.03) 32px);
            pointer-events: none;
        }
        #results::after {
            content: '';
            position: absolute;
            top: 0;
            left: -10%;
            width: 60%;
            height: 100%;
            background: linear-gradient(105deg, transparent 40%, rgba(0, 242, 254, 0.06) 60%, transparent 70%);
            pointer-events: none;
            animation: slashMove 8s ease-in-out infinite;
        }
        @keyframes slashMove {
            0%,
            100% {
                left: -10%;
            }
            50% {
                left: 50%;
            }
        }
        .results-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 40px;
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .result-item .result-number {
            font-family: 'Orbitron', 'Rajdhani', monospace;
            font-size: clamp(2.8rem, 5vw, 4rem);
            font-weight: 800;
            color: var(--neon-orange);
            text-shadow: 0 0 20px rgba(255, 94, 19, 0.5);
            line-height: 1;
            margin-bottom: 8px;
        }
        .result-item .result-label {
            font-size: 1rem;
            color: var(--text-gray);
            font-weight: 500;
            letter-spacing: 1px;
        }
        .result-item .result-sub {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        @media (max-width: 768px) {
            #results {
                padding: 60px 0;
            }
            .results-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .result-item:last-child {
                grid-column: 1 / -1;
            }
            .result-item .result-number {
                font-size: 2.2rem;
            }
        }
        @media (max-width: 520px) {
            .results-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        /* ========== TESTIMONIALS ========== */
        #testimonials {
            background: var(--bg-deep);
            position: relative;
        }
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .testimonial-card {
            background: rgba(31, 31, 58, 0.55);
            border: 1px solid rgba(0, 242, 254, 0.2);
            border-left: 4px solid var(--neon-orange);
            border-radius: var(--radius);
            padding: 28px 24px;
            transition: all var(--transition-smooth);
            position: relative;
        }
        .testimonial-card .quote-mark {
            font-size: 4rem;
            font-family: 'Orbitron', serif;
            color: var(--neon-orange);
            opacity: 0.5;
            line-height: 1;
            position: absolute;
            top: 10px;
            left: 18px;
            pointer-events: none;
        }
        .testimonial-card:hover {
            border-color: var(--neon-orange);
            box-shadow: var(--shadow-neon-orange);
            transform: translateY(-4px);
        }
        .testimonial-card blockquote {
            font-style: italic;
            color: var(--text-gray);
            font-size: 0.95rem;
            line-height: 1.7;
            margin: 0 0 16px;
            padding-top: 10px;
            position: relative;
            z-index: 1;
        }
        .testimonial-card .author {
            font-weight: 700;
            color: var(--text-white);
            font-size: 0.9rem;
        }
        .testimonial-card .author-role {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 2px;
        }

        @media (max-width: 768px) {
            .testimonials-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .testimonial-card {
                padding: 22px 18px;
            }
        }

        /* ========== FAQ ========== */
        #faq {
            background: var(--bg-card);
            position: relative;
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            transition: all var(--transition-smooth);
        }
        .faq-item:first-child {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            background: none;
            border: none;
            color: var(--text-white);
            font-size: 1.05rem;
            font-weight: 600;
            padding: 20px 0;
            cursor: pointer;
            text-align: left;
            gap: 16px;
            letter-spacing: 0.3px;
            transition: color var(--transition-smooth);
        }
        .faq-question:hover {
            color: var(--neon-cyan);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 22px;
            height: 22px;
            position: relative;
            transition: transform var(--transition-smooth);
        }
        .faq-question .faq-icon::before,
        .faq-question .faq-icon::after {
            content: '';
            position: absolute;
            background: var(--neon-cyan);
            border-radius: 2px;
            transition: all var(--transition-smooth);
        }
        .faq-question .faq-icon::before {
            width: 100%;
            height: 2px;
            top: 50%;
            transform: translateY(-50%);
        }
        .faq-question .faq-icon::after {
            width: 2px;
            height: 100%;
            left: 50%;
            transform: translateX(-50%);
        }
        .faq-item.open .faq-question .faq-icon::after {
            transform: translateX(-50%) rotate(90deg);
            opacity: 0;
        }
        .faq-item.open .faq-question {
            color: var(--neon-orange);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            color: var(--text-gray);
            font-size: 0.95rem;
            line-height: 1.7;
            border-left: 3px solid transparent;
            margin-left: 0;
            padding-left: 0;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 0 20px 16px;
            border-left-color: var(--neon-orange);
        }
        .faq-answer-inner {
            padding-left: 0;
        }

        @media (max-width: 768px) {
            .faq-question {
                font-size: 0.95rem;
                padding: 16px 0;
            }
        }

        /* ========== FINAL CTA ========== */
        #final-cta {
            background: var(--bg-deep);
            text-align: center;
            padding: 100px 0;
            position: relative;
            overflow: hidden;
        }
        #final-cta::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at center, rgba(255, 94, 19, 0.07) 0%, transparent 70%);
            pointer-events: none;
        }
        #final-cta .cta-title {
            font-size: clamp(2rem, 4vw, 3rem);
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 12px;
            letter-spacing: 1.5px;
            position: relative;
            z-index: 1;
        }
        #final-cta .cta-sub {
            font-size: 1.1rem;
            color: var(--text-muted);
            margin-bottom: 32px;
            letter-spacing: 2px;
            position: relative;
            z-index: 1;
        }
        #final-cta .btn-neon-large {
            display: inline-block;
            background: linear-gradient(135deg, #FF5E13, #D40078);
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            letter-spacing: 3px;
            padding: 18px 48px;
            border-radius: 50px;
            text-transform: uppercase;
            transition: all var(--transition-smooth);
            box-shadow: 0 0 30px rgba(255, 94, 19, 0.5), 0 8px 40px rgba(212, 0, 120, 0.4);
            position: relative;
            z-index: 1;
            cursor: pointer;
            border: none;
        }
        #final-cta .btn-neon-large:hover {
            box-shadow: 0 0 50px rgba(255, 94, 19, 0.85), 0 12px 48px rgba(212, 0, 120, 0.6);
            transform: translateY(-3px);
            filter: brightness(1.15);
        }
        #final-cta .btn-neon-large:active {
            transform: scale(0.96);
            transition: transform 0.1s ease;
        }

        @media (max-width: 768px) {
            #final-cta {
                padding: 70px 0;
            }
            #final-cta .btn-neon-large {
                padding: 16px 32px;
                font-size: 1rem;
                letter-spacing: 2px;
            }
        }

        /* ========== FOOTER ========== */
        #contact {
            background: #08090d;
            padding: 60px 0 30px;
            position: relative;
            border-top: 1px solid rgba(255, 94, 19, 0.2);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.3fr 1fr 1.4fr;
            gap: 40px;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 5vw;
        }
        .footer-col h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: 1px;
        }
        .footer-col p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
        }
        .footer-col .footer-links {
            list-style: none;
        }
        .footer-col .footer-links li {
            margin-bottom: 8px;
        }
        .footer-col .footer-links a {
            color: var(--text-gray);
            font-size: 0.9rem;
            transition: color var(--transition-smooth);
        }
        .footer-col .footer-links a:hover {
            color: var(--neon-cyan);
        }
        .social-icons {
            display: flex;
            gap: 14px;
            margin-top: 16px;
        }
        .social-icons .social-dot {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(31, 31, 58, 0.8);
            border: 1px solid rgba(0, 242, 254, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all var(--transition-smooth);
            cursor: pointer;
            color: var(--neon-cyan);
            font-size: 0.8rem;
            font-weight: 600;
        }
        .social-icons .social-dot:hover {
            border-color: var(--neon-orange);
            box-shadow: 0 0 14px rgba(255, 94, 19, 0.5);
            color: var(--neon-orange);
        }
        .footer-form input,
        .footer-form textarea {
            width: 100%;
            background: transparent;
            border: none;
            border-bottom: 1px solid rgba(0, 242, 254, 0.4);
            padding: 12px 4px;
            color: var(--text-white);
            font-size: 0.9rem;
            transition: border-color var(--transition-smooth);
            margin-bottom: 14px;
            resize: vertical;
        }
        .footer-form input:focus,
        .footer-form textarea:focus {
            border-bottom-color: var(--neon-orange);
            box-shadow: 0 4px 12px -4px rgba(255, 94, 19, 0.3);
        }
        .footer-form input::placeholder,
        .footer-form textarea::placeholder {
            color: var(--text-muted);
        }
        .footer-form .btn-submit {
            display: inline-block;
            background: linear-gradient(135deg, #FF5E13, #D40078);
            color: #fff;
            font-weight: 700;
            font-size: 0.9rem;
            letter-spacing: 2px;
            padding: 12px 28px;
            border-radius: 50px;
            cursor: pointer;
            border: none;
            transition: all var(--transition-smooth);
            text-transform: uppercase;
        }
        .footer-form .btn-submit:hover {
            box-shadow: 0 0 20px rgba(255, 94, 19, 0.6);
            filter: brightness(1.1);
        }
        .footer-bottom {
            max-width: var(--max-width);
            margin: 40px auto 0;
            padding: 20px 5vw 0;
            text-align: center;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            color: var(--text-muted);
            font-size: 0.8rem;
        }
        .footer-bottom span {
            color: var(--neon-orange);
            font-weight: 600;
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            #contact {
                padding: 40px 0 20px;
            }
        }

        /* ========== SCROLL ANIMATIONS ========== */
        .fade-in-up {
            opacity: 0;
            transform: translateY(40px);
            transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }
        .fade-in-up.visible {
            opacity: 1;
            transform: translateY(0);
        }
        .fade-in-up-delay-1 {
            transition-delay: 0.1s;
        }
        .fade-in-up-delay-2 {
            transition-delay: 0.2s;
        }
        .fade-in-up-delay-3 {
            transition-delay: 0.3s;
        }
        .fade-in-up-delay-4 {
            transition-delay: 0.4s;
        }

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