/* CSS Reset & Variables - Neo-brutalism / Clash Color Style */
        :root {
            --bg-color: #fcfcf9;
            --text-color: #1a1a1a;
            --primary: #2563eb;
            --accent-pink: #ec4899;
            --accent-lime: #84cc16;
            --accent-yellow: #eab308;
            --accent-cyan: #06b6d4;
            --dark-border: #111827;
            --card-shadow: 6px 6px 0px #111827;
            --card-shadow-hover: 2px 2px 0px #111827;
            --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans CJK SC", sans-serif;
            background-color: var(--bg-color);
            color: var(--text-color);
            line-height: 1.6;
            overflow-x: hidden;
        }

        /* Layout Container */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            width: 100%;
        }

        section {
            padding: 80px 0;
            border-bottom: 3px solid var(--dark-border);
        }

        /* Neo-Brutalism Elements */
        .brutal-card {
            background-color: #ffffff;
            border: 3px solid var(--dark-border);
            box-shadow: var(--card-shadow);
            border-radius: 12px;
            padding: 24px;
            transition: var(--transition);
        }

        .brutal-card:hover {
            transform: translate(4px, 4px);
            box-shadow: var(--card-shadow-hover);
        }

        .brutal-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            background-color: var(--accent-pink);
            color: #ffffff;
            font-weight: 700;
            text-decoration: none;
            border: 3px solid var(--dark-border);
            box-shadow: 4px 4px 0px #111827;
            border-radius: 8px;
            transition: var(--transition);
            cursor: pointer;
        }

        .brutal-btn:hover {
            transform: translate(2px, 2px);
            box-shadow: 2px 2px 0px #111827;
            background-color: var(--primary);
        }

        .brutal-btn.lime-btn {
            background-color: var(--accent-lime);
            color: #111827;
        }

        .brutal-btn.blue-btn {
            background-color: var(--primary);
            color: #ffffff;
        }

        .badge {
            display: inline-block;
            padding: 4px 12px;
            font-weight: bold;
            font-size: 0.85rem;
            text-transform: uppercase;
            border: 2px solid var(--dark-border);
            border-radius: 4px;
            background-color: var(--accent-yellow);
            color: #111827;
            margin-bottom: 12px;
        }

        /* Section Headings */
        .section-header {
            margin-bottom: 50px;
            text-align: center;
        }

        .section-title {
            font-size: 2.25rem;
            font-weight: 800;
            display: inline-block;
            position: relative;
            z-index: 1;
            padding: 4px 16px;
            background-color: var(--accent-lime);
            border: 3px solid var(--dark-border);
            box-shadow: 4px 4px 0px #111827;
            transform: rotate(-1deg);
            margin-bottom: 16px;
        }

        .section-subtitle {
            font-size: 1.1rem;
            color: #4b5563;
            margin-top: 15px;
            font-weight: 500;
        }

        /* Navigation Header */
        header {
            background-color: #ffffff;
            border-bottom: 3px solid var(--dark-border);
            position: sticky;
            top: 0;
            z-index: 100;
            padding: 15px 0;
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .logo-area {
            display: flex;
            align-items: center;
        }

        .ai-page-logo {
            height: 48px;
            object-fit: contain;
        }

        nav {
            display: flex;
            gap: 20px;
            align-items: center;
        }

        nav a {
            color: var(--text-color);
            text-decoration: none;
            font-weight: 700;
            font-size: 0.95rem;
            padding: 6px 12px;
            border-radius: 6px;
            transition: var(--transition);
        }

        nav a:hover {
            background-color: var(--accent-yellow);
            border: 2px solid var(--dark-border);
        }

        .mobile-menu-btn {
            display: none;
            background: none;
            border: 2px solid var(--dark-border);
            padding: 8px;
            cursor: pointer;
            border-radius: 6px;
        }

        .mobile-menu-btn span {
            display: block;
            width: 20px;
            height: 3px;
            background-color: var(--dark-border);
            margin: 4px 0;
        }

        /* Hero Section (No Images!) */
        .hero {
            background: linear-gradient(135deg, #fef08a 0%, #a7f3d0 100%);
            color: var(--text-color);
            text-align: center;
            position: relative;
            overflow: hidden;
            padding: 100px 0;
        }

        .hero-content h1 {
            font-size: 3.5rem;
            font-weight: 900;
            line-height: 1.15;
            margin-bottom: 24px;
            color: #111827;
        }

        .hero-content h1 span {
            background-color: var(--accent-pink);
            color: white;
            padding: 4px 16px;
            border: 3px solid var(--dark-border);
            box-shadow: 4px 4px 0px #111827;
            display: inline-block;
            transform: rotate(1deg);
        }

        .hero-desc {
            font-size: 1.35rem;
            max-width: 800px;
            margin: 0 auto 36px auto;
            font-weight: 600;
            color: #374151;
        }

        .hero-btn-group {
            display: flex;
            gap: 20px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .hero-highlight-boxes {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
            margin-top: 60px;
        }

        .hero-highlight-box {
            background-color: #ffffff;
            border: 3px solid var(--dark-border);
            padding: 20px;
            border-radius: 10px;
            box-shadow: 4px 4px 0px #111827;
        }

        .hero-highlight-box h3 {
            font-size: 1.25rem;
            font-weight: 800;
            margin-bottom: 8px;
            color: var(--primary);
        }

        .hero-highlight-box p {
            font-size: 0.95rem;
            font-weight: 500;
            color: #4b5563;
        }

        /* Metric Indicators */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: -40px;
            position: relative;
            z-index: 10;
        }

        .metric-card {
            background-color: #ffffff;
            border: 3px solid var(--dark-border);
            border-radius: 12px;
            padding: 24px;
            text-align: center;
            box-shadow: var(--card-shadow);
        }

        .metric-number {
            font-size: 2.75rem;
            font-weight: 900;
            color: var(--accent-pink);
            line-height: 1;
            margin-bottom: 8px;
        }

        .metric-label {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-color);
        }

        /* Platforms Tag Cloud */
        .platform-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            margin-top: 30px;
        }

        .platform-tag {
            background-color: #ffffff;
            border: 2px solid var(--dark-border);
            padding: 6px 14px;
            font-size: 0.9rem;
            font-weight: 700;
            border-radius: 20px;
            box-shadow: 2px 2px 0px #111827;
            transition: var(--transition);
        }

        .platform-tag:hover {
            background-color: var(--accent-cyan);
            color: #ffffff;
            transform: translateY(-2px);
        }

        /* Grid Layouts */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 40px;
            align-items: center;
        }

        /* Solutions Lists */
        .solution-card {
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .solution-list {
            list-style: none;
            margin: 16px 0;
        }

        .solution-list li {
            position: relative;
            padding-left: 24px;
            margin-bottom: 10px;
            font-weight: 500;
        }

        .solution-list li::before {
            content: "✓";
            position: absolute;
            left: 0;
            color: var(--accent-lime);
            font-weight: 900;
            font-size: 1.1rem;
        }

        /* Interactive Timeline (Process) */
        .timeline {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
        }

        .timeline::after {
            content: '';
            position: absolute;
            width: 6px;
            background-color: var(--dark-border);
            top: 0;
            bottom: 0;
            left: 50%;
            margin-left: -3px;
        }

        .timeline-container {
            padding: 10px 40px;
            position: relative;
            background-color: inherit;
            width: 50%;
        }

        .timeline-container::after {
            content: '';
            position: absolute;
            width: 20px;
            height: 20px;
            right: -10px;
            background-color: var(--accent-yellow);
            border: 3px solid var(--dark-border);
            top: 15px;
            border-radius: 50%;
            z-index: 1;
        }

        .left {
            left: 0;
        }

        .right {
            left: 50%;
        }

        .right::after {
            left: -10px;
        }

        /* Images and Media wrapper */
        .media-container {
            border: 3px solid var(--dark-border);
            box-shadow: var(--card-shadow);
            border-radius: 12px;
            overflow: hidden;
            background-color: #ffffff;
        }

        .media-container img {
            width: 100%;
            height: auto;
            display: block;
        }

        /* Rating / Comparison Section */
        .rating-box {
            background-color: var(--accent-yellow);
            border: 3px solid var(--dark-border);
            box-shadow: var(--card-shadow);
            border-radius: 12px;
            padding: 30px;
            text-align: center;
            margin-bottom: 40px;
        }

        .rating-score {
            font-size: 4.5rem;
            font-weight: 900;
            line-height: 1;
            margin-bottom: 10px;
        }

        .rating-stars {
            font-size: 2rem;
            color: #111827;
            margin-bottom: 10px;
        }

        .comparison-table-wrapper {
            overflow-x: auto;
            border: 3px solid var(--dark-border);
            box-shadow: var(--card-shadow);
            border-radius: 12px;
            background-color: #ffffff;
        }

        table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
        }

        th, td {
            padding: 16px 20px;
            border-bottom: 2px solid var(--dark-border);
            font-weight: 600;
        }

        th {
            background-color: #f3f4f6;
            font-weight: 800;
            color: var(--text-color);
        }

        tr:last-child td {
            border-bottom: none;
        }

        .highlight-col {
            background-color: rgba(132, 204, 22, 0.15);
        }

        /* Token comparison block */
        .price-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }

        /* Forms */
        .form-wrapper {
            max-width: 650px;
            margin: 0 auto;
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-group label {
            display: block;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            font-size: 1rem;
            font-weight: 600;
            border: 3px solid var(--dark-border);
            border-radius: 8px;
            background-color: #ffffff;
            transition: var(--transition);
        }

        .form-control:focus {
            outline: none;
            box-shadow: 4px 4px 0px var(--accent-pink);
            transform: translate(-2px, -2px);
        }

        /* FAQ Accordion */
        .faq-accordion {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            border: 3px solid var(--dark-border);
            border-radius: 8px;
            margin-bottom: 15px;
            background-color: #ffffff;
            box-shadow: 3px 3px 0px #111827;
            overflow: hidden;
        }

        .faq-question {
            padding: 20px;
            font-weight: 800;
            font-size: 1.1rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background-color: #ffffff;
            user-select: none;
        }

        .faq-question::after {
            content: "+";
            font-size: 1.5rem;
            font-weight: 800;
            transition: transform 0.2s ease;
        }

        .faq-item.active .faq-question::after {
            content: "−";
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            background-color: #fafafa;
            border-top: 0px solid var(--dark-border);
        }

        .faq-item.active .faq-answer {
            max-height: 250px;
            padding: 20px;
            border-top: 3px solid var(--dark-border);
        }

        /* Self Diagnostic / Checklist */
        .check-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .check-item {
            display: flex;
            gap: 12px;
            align-items: flex-start;
        }

        .check-icon {
            background-color: var(--accent-pink);
            color: white;
            border: 2px solid var(--dark-border);
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            border-radius: 4px;
            flex-shrink: 0;
        }

        .check-content h4 {
            font-weight: 800;
            margin-bottom: 4px;
        }

        /* User Review Cards */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .review-card {
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .review-author {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: 20px;
            padding-top: 15px;
            border-top: 2px dashed #e5e7eb;
        }

        .author-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background-color: var(--accent-cyan);
            border: 2px solid var(--dark-border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            color: #ffffff;
        }

        .author-info h4 {
            font-size: 0.95rem;
            font-weight: 800;
        }

        .author-info p {
            font-size: 0.8rem;
            color: #6b7280;
        }

        /* Article / Info Section */
        .article-card {
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .article-card h3 {
            font-size: 1.2rem;
            margin-bottom: 12px;
            font-weight: 800;
        }

        .article-card a {
            color: var(--primary);
            text-decoration: underline;
            font-weight: 700;
            font-size: 0.9rem;
        }

        /* Floating Sidebar Customer Service */
        .floating-service {
            position: fixed;
            right: 20px;
            bottom: 20px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .service-trigger {
            background-color: var(--accent-yellow);
            border: 3px solid var(--dark-border);
            box-shadow: 4px 4px 0px #111827;
            width: 60px;
            height: 60px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            font-weight: 900;
            font-size: 1.5rem;
            transition: var(--transition);
        }

        .service-trigger:hover {
            transform: rotate(15deg) scale(1.1);
        }

        .service-panel {
            position: absolute;
            bottom: 75px;
            right: 0;
            width: 260px;
            background-color: #ffffff;
            border: 3px solid var(--dark-border);
            border-radius: 12px;
            box-shadow: var(--card-shadow);
            padding: 20px;
            display: none;
            flex-direction: column;
            gap: 12px;
        }

        .service-panel.active {
            display: flex;
        }

        .service-panel img {
            width: 120px;
            height: 120px;
            margin: 0 auto;
            border: 2px solid var(--dark-border);
            display: block;
        }

        .service-info-text {
            font-size: 0.85rem;
            font-weight: 700;
            text-align: center;
            color: #374151;
        }

        /* Back to top button */
        .back-to-top {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 45px;
            height: 45px;
            background-color: #ffffff;
            border: 3px solid var(--dark-border);
            border-radius: 50%;
            cursor: pointer;
            font-weight: 900;
            box-shadow: 2px 2px 0px #111827;
            transition: var(--transition);
        }

        .back-to-top:hover {
            background-color: var(--accent-pink);
            color: #ffffff;
        }

        /* Footer and links */
        footer {
            background-color: #111827;
            color: #ffffff;
            padding: 60px 0 30px 0;
            border-top: 3px solid var(--dark-border);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-logo img {
            height: 50px;
            margin-bottom: 20px;
        }

        .footer-about {
            font-size: 0.95rem;
            color: #9ca3af;
            line-height: 1.8;
        }

        .footer-title {
            font-size: 1.15rem;
            font-weight: 800;
            color: var(--accent-lime);
            margin-bottom: 20px;
            border-left: 4px solid var(--accent-pink);
            padding-left: 10px;
        }

        .footer-links {
            list-style: none;
        }

        .footer-links li {
            margin-bottom: 12px;
        }

        .footer-links a {
            color: #d1d5db;
            text-decoration: none;
            font-weight: 600;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: var(--accent-pink);
            padding-left: 5px;
        }

        .footer-contacts p {
            margin-bottom: 10px;
            color: #d1d5db;
            font-weight: 600;
        }

        .footer-friends {
            border-top: 2px solid #374151;
            padding-top: 30px;
            margin-bottom: 30px;
        }

        .footer-friends-title {
            font-size: 1rem;
            font-weight: 800;
            color: #9ca3af;
            margin-bottom: 15px;
        }

        .footer-friends-links {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
        }

        .footer-friends-links a {
            color: #9ca3af;
            text-decoration: none;
            font-size: 0.85rem;
            font-weight: 700;
            background-color: #1f2937;
            padding: 4px 12px;
            border-radius: 4px;
            border: 1px solid #374151;
            transition: var(--transition);
        }

        .footer-friends-links a:hover {
            color: #ffffff;
            background-color: var(--accent-pink);
            border-color: var(--dark-border);
        }

        .footer-bottom {
            border-top: 2px solid #374151;
            padding-top: 25px;
            text-align: center;
            font-size: 0.85rem;
            color: #9ca3af;
            font-weight: 600;
        }

        .footer-bottom a {
            color: #ffffff;
            text-decoration: none;
            margin: 0 5px;
        }

        /* Mobile Responsive */
        @media (max-width: 1024px) {
            .grid-3, .reviews-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                margin-top: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            section {
                padding: 60px 0;
            }
            .grid-3, .reviews-grid, .grid-2 {
                grid-template-columns: 1fr;
            }
            .timeline::after {
                left: 31px;
            }
            .timeline-container {
                width: 100%;
                padding-left: 70px;
                padding-right: 25px;
            }
            .timeline-container::after {
                left: 21px;
            }
            .right {
                left: 0%;
            }
            nav {
                display: none;
                position: absolute;
                top: 80px;
                left: 0;
                right: 0;
                background-color: #ffffff;
                flex-direction: column;
                padding: 20px;
                border-bottom: 3px solid var(--dark-border);
                gap: 15px;
            }
            nav.active {
                display: flex;
            }
            .mobile-menu-btn {
                display: block;
            }
            .hero-content h1 {
                font-size: 2.25rem;
            }
            .check-grid {
                grid-template-columns: 1fr;
            }
        }