/* roulang page: index */
:root {
            --bg-primary: #0A0A0C;
            --bg-alt: #100E1A;
            --magenta: #E6007A;
            --magenta-glow: rgba(230, 0, 122, 0.5);
            --magenta-strong: rgba(230, 0, 122, 0.75);
            --cyan: #00F0FF;
            --cyan-glow: rgba(0, 240, 255, 0.35);
            --cyan-subtle: rgba(0, 240, 255, 0.1);
            --text-primary: #FFFFFF;
            --text-secondary: #B0B0C0;
            --text-muted: #6A6A7A;
            --card-bg: rgba(255, 255, 255, 0.03);
            --card-border: rgba(255, 255, 255, 0.06);
            --card-border-hover: rgba(0, 240, 255, 0.18);
            --radius: 10px;
            --radius-sm: 6px;
            --shadow-btn: 0 0 14px rgba(230, 0, 122, 0.5);
            --shadow-btn-hover: 0 0 24px rgba(230, 0, 122, 0.7);
            --shadow-card: 0 0 20px rgba(0, 0, 0, 0.4);
            --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-en: "Inter", "SF Pro Text", sans-serif;
            --max-width: 1200px;
            --section-gap: 140px;
            --section-gap-mobile: 80px;
            --nav-height: 64px;
            --transition-fast: 0.2s ease;
            --transition-normal: 0.35s ease;
        }

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

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

        body {
            font-family: var(--font-cn);
            background-color: var(--bg-primary);
            color: var(--text-secondary);
            line-height: 1.7;
            font-size: 1rem;
            min-height: 100vh;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--cyan);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
            background: none;
            color: inherit;
        }
        button {
            cursor: pointer;
        }
        ul,
        ol {
            list-style: none;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        .section-pad {
            padding: var(--section-gap) 0;
        }
        @media (max-width: 768px) {
            .section-pad {
                padding: var(--section-gap-mobile) 0;
            }
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.15em;
            color: var(--cyan);
            text-transform: uppercase;
            margin-bottom: 0.6rem;
        }
        .section-title {
            font-size: clamp(2rem, 4vw, 2.8rem);
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.25;
            margin-bottom: 1rem;
            position: relative;
            padding-left: 20px;
        }
        .section-title::before {
            content: '';
            position: absolute;
            left: 0;
            top: 6px;
            bottom: 6px;
            width: 4px;
            border-radius: 3px;
            background: linear-gradient(180deg, var(--magenta) 0%, var(--cyan) 100%);
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 600px;
            line-height: 1.6;
        }

        /* ========== NAVIGATION ========== */
        #nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            transition: background var(--transition-normal), box-shadow var(--transition-normal), backdrop-filter var(--transition-normal);
            display: flex;
            align-items: center;
        }
        #nav.scrolled {
            background: rgba(10, 10, 12, 0.85);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            box-shadow: 0 1px 0 0 rgba(230, 0, 122, 0.25);
        }
        #nav .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .nav-logo {
            font-size: 1.35rem;
            font-weight: 900;
            color: var(--text-primary);
            letter-spacing: 0.04em;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
            z-index: 1002;
        }
        .nav-logo .logo-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--magenta);
            box-shadow: 0 0 10px var(--magenta-glow);
            animation: logoPulse 2s ease-in-out infinite;
        }
        @keyframes logoPulse {
            0%,
            100% {
                box-shadow: 0 0 10px var(--magenta-glow);
            }
            50% {
                box-shadow: 0 0 22px var(--magenta-strong);
            }
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-secondary);
        }
        .nav-links a {
            position: relative;
            padding: 4px 0;
            transition: color var(--transition-fast);
        }
        .nav-links a:hover,
        .nav-links a:focus-visible {
            color: var(--cyan);
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--cyan);
            transition: width var(--transition-fast);
            border-radius: 1px;
        }
        .nav-links a:hover::after,
        .nav-links a:focus-visible::after {
            width: 100%;
        }
        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 20px;
            border: 1.5px solid var(--magenta);
            border-radius: 50px;
            color: var(--magenta);
            font-weight: 700;
            font-size: 0.85rem;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.03em;
        }
        .nav-cta-btn:hover {
            background: var(--magenta);
            color: #fff;
            box-shadow: var(--shadow-btn);
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            z-index: 1002;
            padding: 6px;
        }
        .hamburger span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }
        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
            background: var(--cyan);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
            background: var(--cyan);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            inset: 0;
            background: #000;
            z-index: 1001;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 32px;
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-primary);
        }
        .mobile-menu.active {
            display: flex;
        }
        .mobile-menu a {
            padding: 8px 20px;
            transition: color var(--transition-fast);
            position: relative;
        }
        .mobile-menu a:hover {
            color: var(--cyan);
        }
        .mobile-menu a::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 0;
            background: var(--cyan);
            border-radius: 3px;
            transition: height var(--transition-fast);
        }
        .mobile-menu a:hover::before {
            height: 70%;
        }
        .mobile-menu .nav-cta-btn {
            font-size: 1rem;
            padding: 12px 28px;
        }

        @media (max-width: 840px) {
            .nav-links {
                display: none;
            }
            .hamburger {
                display: flex;
            }
        }

        /* ========== HERO ========== */
        #hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            background: var(--bg-primary);
        }
        #hero .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            opacity: 0.35;
            z-index: 0;
        }
        #hero .hero-overlay {
            position: absolute;
            inset: 0;
            background:
                radial-gradient(ellipse at 30% 50%, rgba(230, 0, 122, 0.12) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 40%, rgba(0, 240, 255, 0.08) 0%, transparent 55%),
                linear-gradient(180deg, rgba(10, 10, 12, 0.3) 0%, rgba(10, 10, 12, 0.85) 100%);
            z-index: 1;
        }
        #hero .grid-dots {
            position: absolute;
            inset: 0;
            background-image: radial-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px);
            background-size: 32px 32px;
            z-index: 2;
            opacity: 0.5;
        }
        #hero .hero-content {
            position: relative;
            z-index: 3;
            text-align: center;
            max-width: 800px;
            padding: 40px 20px;
        }
        #hero .hero-tag {
            display: inline-block;
            padding: 6px 16px;
            border: 1px solid rgba(0, 240, 255, 0.3);
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--cyan);
            letter-spacing: 0.1em;
            margin-bottom: 1.5rem;
            background: rgba(0, 240, 255, 0.04);
        }
        #hero h1 {
            font-size: clamp(2.5rem, 7vw, 4.5rem);
            font-weight: 900;
            letter-spacing: -1px;
            line-height: 1.15;
            color: var(--text-primary);
            margin-bottom: 0.6rem;
        }
        #hero h1 .highlight {
            color: var(--magenta);
            text-shadow: 0 0 30px var(--magenta-glow);
        }
        #hero .hero-lead {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 500px;
            margin: 0 auto 2rem;
            line-height: 1.6;
        }
        #hero .hero-btns {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            justify-content: center;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            background: var(--magenta);
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            letter-spacing: 0.04em;
            border-radius: 50px;
            box-shadow: var(--shadow-btn);
            transition: all var(--transition-fast);
            cursor: pointer;
            border: none;
        }
        .btn-primary:hover {
            box-shadow: var(--shadow-btn-hover);
            background: #ff1493;
            transform: translateY(-1px);
        }
        .btn-ghost {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            background: transparent;
            color: var(--cyan);
            font-weight: 700;
            font-size: 1rem;
            letter-spacing: 0.04em;
            border-radius: 50px;
            border: 1.5px solid var(--cyan);
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .btn-ghost:hover {
            background: rgba(0, 240, 255, 0.12);
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.25);
            transform: translateY(-1px);
        }
        #hero .hero-stat-badge {
            position: absolute;
            bottom: 60px;
            left: 30px;
            z-index: 3;
            display: flex;
            align-items: center;
            gap: 12px;
            background: rgba(0, 0, 0, 0.5);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 50px;
            padding: 10px 22px;
            backdrop-filter: blur(8px);
        }
        #hero .hero-stat-badge .stat-num {
            font-size: 1.8rem;
            font-weight: 900;
            color: var(--cyan);
            font-family: var(--font-en);
            text-shadow: 0 0 16px var(--cyan-glow);
        }
        #hero .hero-stat-badge .stat-label {
            font-size: 0.8rem;
            color: var(--text-secondary);
            font-weight: 600;
        }
        @media (max-width: 640px) {
            #hero .hero-stat-badge {
                bottom: 30px;
                left: 16px;
                padding: 8px 16px;
                gap: 8px;
            }
            #hero .hero-stat-badge .stat-num {
                font-size: 1.3rem;
            }
            #hero .hero-stat-badge .stat-label {
                font-size: 0.7rem;
            }
            #hero h1 {
                letter-spacing: -0.5px;
            }
            .btn-primary,
            .btn-ghost {
                padding: 12px 24px;
                font-size: 0.9rem;
            }
        }

        /* ========== PAIN ========== */
        #pain {
            background: var(--bg-primary);
        }
        #pain .pain-list {
            margin-top: 3rem;
        }
        #pain .pain-item {
            display: flex;
            align-items: flex-start;
            gap: 28px;
            padding: 28px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
            transition: background var(--transition-fast);
        }
        #pain .pain-item:first-child {
            border-top: 1px solid rgba(255, 255, 255, 0.04);
        }
        #pain .pain-num {
            font-family: var(--font-en);
            font-size: 3rem;
            font-weight: 900;
            color: var(--cyan);
            text-shadow: 0 0 20px var(--cyan-glow);
            line-height: 1;
            flex-shrink: 0;
            width: 70px;
            text-align: center;
        }
        #pain .pain-info h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }
        #pain .pain-info p {
            color: var(--text-muted);
            font-size: 0.95rem;
            max-width: 600px;
            line-height: 1.7;
        }
        #pain .pain-cta-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 1.5rem;
            color: var(--cyan);
            font-weight: 700;
            font-size: 0.95rem;
            transition: color var(--transition-fast);
        }
        #pain .pain-cta-link:hover {
            color: var(--magenta);
        }
        #pain .pain-cta-link i {
            transition: transform var(--transition-fast);
        }
        #pain .pain-cta-link:hover i {
            transform: translateX(4px);
        }
        @media (max-width: 640px) {
            #pain .pain-item {
                flex-direction: column;
                gap: 12px;
                padding: 20px 0;
            }
            #pain .pain-num {
                font-size: 2.2rem;
                width: auto;
            }
        }

        /* ========== SOLUTION ========== */
        #solution {
            background: var(--bg-alt);
        }
        #solution .solution-row {
            display: flex;
            align-items: center;
            gap: 50px;
            padding: 40px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }
        #solution .solution-row:last-child {
            border-bottom: none;
        }
        #solution .solution-row.reverse {
            flex-direction: row-reverse;
        }
        #solution .solution-text {
            flex: 1 1 50%;
        }
        #solution .solution-text .sol-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--magenta);
            letter-spacing: 0.12em;
            text-transform: uppercase;
            margin-bottom: 0.6rem;
            border: 1px solid rgba(230, 0, 122, 0.3);
            padding: 4px 12px;
            border-radius: 50px;
            background: rgba(230, 0, 122, 0.05);
        }
        #solution .solution-text h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.7rem;
        }
        #solution .solution-text p {
            color: var(--text-muted);
            margin-bottom: 1rem;
            line-height: 1.7;
        }
        #solution .solution-text .sol-link {
            color: var(--cyan);
            font-weight: 700;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color var(--transition-fast);
        }
        #solution .solution-text .sol-link:hover {
            color: var(--magenta);
        }
        #solution .solution-img-wrap {
            flex: 1 1 45%;
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: linear-gradient(135deg, var(--magenta), var(--cyan));
            padding: 3px;
            box-shadow: 0 0 30px rgba(0, 0, 0, 0.5);
        }
        #solution .solution-img-wrap .img-inner {
            width: 100%;
            height: 100%;
            border-radius: calc(var(--radius) - 3px);
            overflow: hidden;
            position: relative;
        }
        #solution .solution-img-wrap .img-inner img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            filter: brightness(0.7);
            transition: filter var(--transition-normal);
        }
        #solution .solution-img-wrap:hover .img-inner img {
            filter: brightness(0.9);
        }
        @media (max-width: 840px) {
            #solution .solution-row,
            #solution .solution-row.reverse {
                flex-direction: column;
                gap: 28px;
                padding: 28px 0;
            }
            #solution .solution-img-wrap {
                width: 100%;
                aspect-ratio: 16 / 9;
            }
        }

        /* ========== RESULTS ========== */
        #results {
            background: var(--bg-primary);
            position: relative;
            overflow: hidden;
        }
        #results .results-grid-dots {
            position: absolute;
            inset: 0;
            background-image: radial-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px);
            background-size: 28px 28px;
            z-index: 0;
            opacity: 0.6;
            pointer-events: none;
        }
        #results .results-inner {
            position: relative;
            z-index: 1;
        }
        #results .results-row {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 60px;
            flex-wrap: wrap;
            margin-top: 3rem;
        }
        #results .result-item {
            text-align: center;
            position: relative;
        }
        #results .result-item .result-num {
            font-family: var(--font-en);
            font-size: clamp(3rem, 6vw, 4.5rem);
            font-weight: 900;
            color: var(--text-primary);
            text-shadow: 0 0 30px var(--cyan-glow), 0 0 60px rgba(0, 240, 255, 0.3);
            line-height: 1;
            margin-bottom: 8px;
        }
        #results .result-item .result-label {
            font-size: 0.95rem;
            color: var(--text-muted);
            font-weight: 600;
            letter-spacing: 0.04em;
        }
        #results .result-divider {
            width: 2px;
            height: 60px;
            background: var(--cyan);
            box-shadow: 0 0 12px var(--cyan-glow);
            border-radius: 2px;
            flex-shrink: 0;
        }
        #results .results-compare {
            text-align: center;
            margin-top: 2.5rem;
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        #results .results-compare strong {
            color: var(--cyan);
            font-weight: 700;
        }
        #results .results-cta {
            text-align: center;
            margin-top: 2rem;
        }
        @media (max-width: 640px) {
            #results .results-row {
                flex-direction: column;
                gap: 28px;
            }
            #results .result-divider {
                width: 40px;
                height: 2px;
            }
        }

        /* ========== TESTIMONIALS ========== */
        #testimonials {
            background: var(--bg-alt);
            overflow: hidden;
        }
        #testimonials .testimonial-track {
            display: flex;
            gap: 20px;
            overflow-x: auto;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
            padding: 20px 0 30px;
            scrollbar-width: none;
            cursor: grab;
        }
        #testimonials .testimonial-track::-webkit-scrollbar {
            display: none;
        }
        #testimonials .testimonial-track:active {
            cursor: grabbing;
        }
        #testimonials .testimonial-card {
            flex: 0 0 320px;
            scroll-snap-align: start;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--card-border-hover);
            border-radius: var(--radius);
            padding: 28px 22px;
            position: relative;
            transition: all var(--transition-normal);
            box-shadow: var(--shadow-card);
        }
        #testimonials .testimonial-card:hover {
            border-color: var(--magenta);
            box-shadow: 0 0 28px rgba(230, 0, 122, 0.3), var(--shadow-card);
            transform: translateY(-4px);
        }
        #testimonials .testimonial-card .quote-icon {
            font-size: 3rem;
            color: var(--magenta);
            opacity: 0.5;
            line-height: 1;
            position: absolute;
            top: 14px;
            left: 18px;
            text-shadow: 0 0 12px var(--magenta-glow);
            font-family: var(--font-en);
            pointer-events: none;
        }
        #testimonials .testimonial-card .quote-text {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 1.2rem 0 1.4rem;
            position: relative;
            z-index: 1;
        }
        #testimonials .testimonial-card .testimonial-author {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        #testimonials .testimonial-card .author-avatar {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            border: 2px solid var(--magenta);
            overflow: hidden;
            flex-shrink: 0;
            box-shadow: 0 0 10px var(--magenta-glow);
        }
        #testimonials .testimonial-card .author-avatar img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        #testimonials .testimonial-card .author-name {
            font-weight: 700;
            color: var(--text-primary);
            font-size: 0.9rem;
        }
        #testimonials .testimonial-card .author-team {
            font-size: 0.75rem;
            color: var(--cyan);
            font-weight: 600;
        }
        #testimonials .testimonial-dots {
            display: flex;
            justify-content: center;
            gap: 10px;
            margin-top: 16px;
        }
        #testimonials .testimonial-dots .dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.2);
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        #testimonials .testimonial-dots .dot.active {
            background: var(--magenta);
            box-shadow: 0 0 10px var(--magenta-glow);
            width: 28px;
            border-radius: 20px;
        }
        @media (max-width: 640px) {
            #testimonials .testimonial-card {
                flex: 0 0 280px;
                padding: 22px 16px;
            }
        }

        /* ========== FAQ ========== */
        #faq {
            background: var(--bg-primary);
        }
        #faq .faq-list {
            max-width: 750px;
            margin: 2.5rem auto 0;
        }
        #faq .faq-item {
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            cursor: pointer;
        }
        #faq .faq-item:first-child {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }
        #faq .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 8px;
            font-weight: 700;
            color: var(--text-primary);
            font-size: 1.05rem;
            transition: color var(--transition-fast);
            gap: 12px;
        }
        #faq .faq-question:hover {
            color: var(--cyan);
        }
        #faq .faq-question .faq-icon {
            flex-shrink: 0;
            width: 22px;
            height: 22px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            color: var(--text-muted);
            transition: all var(--transition-fast);
            border: 1.5px solid rgba(255, 255, 255, 0.2);
            border-radius: 50%;
        }
        #faq .faq-item.open .faq-icon {
            transform: rotate(90deg);
            color: var(--magenta);
            border-color: var(--magenta);
            box-shadow: 0 0 8px var(--magenta-glow);
        }
        #faq .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-normal), padding var(--transition-normal);
            padding: 0 8px;
        }
        #faq .faq-item.open .faq-answer {
            max-height: 200px;
            padding: 0 8px 18px;
        }
        #faq .faq-answer p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            padding-top: 12px;
            margin-top: 4px;
        }

        /* ========== CTA ========== */
        #cta {
            background: var(--bg-alt);
            position: relative;
            overflow: hidden;
        }
        #cta .cta-bg-stripe {
            position: absolute;
            inset: 0;
            background:
                linear-gradient(135deg, rgba(230, 0, 122, 0.2) 0%, transparent 45%),
                linear-gradient(225deg, rgba(0, 0, 0, 0.6) 0%, transparent 50%),
                url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            opacity: 0.5;
            z-index: 0;
        }
        #cta .cta-inner {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 650px;
            margin: 0 auto;
        }
        #cta .cta-title {
            font-size: clamp(1.8rem, 4vw, 2.6rem);
            font-weight: 900;
            color: var(--text-primary);
            margin-bottom: 0.8rem;
            line-height: 1.25;
        }
        #cta .cta-subtitle {
            color: var(--text-muted);
            font-size: 1rem;
            margin-bottom: 2rem;
        }
        #cta .cta-form {
            display: flex;
            flex-direction: column;
            gap: 14px;
            max-width: 460px;
            margin: 0 auto;
        }
        #cta .cta-form input,
        #cta .cta-form textarea {
            width: 100%;
            padding: 14px 18px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-bottom: 2px solid var(--cyan);
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            resize: vertical;
        }
        #cta .cta-form input:focus,
        #cta .cta-form textarea:focus {
            border-color: var(--magenta);
            border-bottom-color: var(--magenta);
            box-shadow: 0 0 16px var(--magenta-glow);
            background: rgba(255, 255, 255, 0.06);
            outline: none;
        }
        #cta .cta-form input::placeholder,
        #cta .cta-form textarea::placeholder {
            color: var(--text-muted);
            opacity: 0.7;
        }
        #cta .cta-form .btn-primary {
            width: 100%;
            justify-content: center;
            padding: 16px;
            font-size: 1.05rem;
            letter-spacing: 0.06em;
            border-radius: 50px;
        }
        @media (max-width: 640px) {
            #cta .cta-form {
                max-width: 100%;
            }
        }

        /* ========== FOOTER ========== */
        #footer {
            background: var(--bg-primary);
            border-top: 1px solid rgba(0, 240, 255, 0.1);
            padding: 40px 0;
        }
        #footer .footer-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 20px;
        }
        #footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        #footer .footer-brand .logo-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--magenta);
            box-shadow: 0 0 8px var(--magenta-glow);
        }
        #footer .footer-brand span {
            font-weight: 800;
            color: var(--text-primary);
            font-size: 1.1rem;
            letter-spacing: 0.03em;
        }
        #footer .footer-slogan {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 2px;
        }
        #footer .footer-links {
            display: flex;
            gap: 20px;
            align-items: center;
        }
        #footer .footer-links a {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: color var(--transition-fast);
            font-weight: 600;
        }
        #footer .footer-links a:hover {
            color: var(--cyan);
        }
        #footer .social-icons {
            display: flex;
            gap: 14px;
        }
        #footer .social-icons a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            border: 1.5px solid rgba(0, 240, 255, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--cyan);
            font-size: 1rem;
            transition: all var(--transition-fast);
        }
        #footer .social-icons a:hover {
            background: var(--magenta);
            border-color: var(--magenta);
            color: #fff;
            box-shadow: var(--shadow-btn);
        }
        #footer .footer-copy {
            width: 100%;
            text-align: center;
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-top: 20px;
            padding-top: 16px;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
        }
        @media (max-width: 640px) {
            #footer .footer-inner {
                flex-direction: column;
                text-align: center;
            }
            #footer .footer-links {
                flex-wrap: wrap;
                justify-content: center;
            }
        }

        /* ========== ANIMATIONS ========== */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .anim-on-scroll {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.7s ease, transform 0.7s ease;
        }
        .anim-on-scroll.visible {
            opacity: 1;
            transform: translateY(0);
        }

        @keyframes subtlePulse {
            0%,
            100% {
                opacity: 0.5;
            }
            50% {
                opacity: 0.8;
            }
        }
        .pulse-glow {
            animation: subtlePulse 3s ease-in-out infinite;
        }

        /* Focus accessibility */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 3px;
            border-radius: 2px;
        }