/* Base Reset & Variables */
        :root {
            --primary: #ffe600;
            --primary-dark: #e0ca00;
            --secondary: #3b82f6;
            --accent-pink: #ec4899;
            --accent-green: #10b981;
            --dark: #1a1a1a;
            --light: #fcfbfa;
            --card-bg: #ffffff;
            --border-width: 3px;
            --sketch-shadow: 5px 5px 0px var(--dark);
            --sketch-shadow-hover: 8px 8px 0px var(--dark);
        }

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

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
            background-color: var(--light);
            color: var(--dark);
            line-height: 1.6;
            overflow-x: hidden;
        }

        /* Doodle/Graffiti CSS Elements */
        .doodle-border {
            border: var(--border-width) solid var(--dark);
            border-radius: 20px 10px 20px 12px / 12px 20px 12px 20px;
        }

        .doodle-shadow {
            box-shadow: var(--sketch-shadow);
            transition: all 0.2s ease-in-out;
        }

        .doodle-shadow:hover {
            transform: translate(-3px, -3px);
            box-shadow: var(--sketch-shadow-hover);
        }

        .badge-doodle {
            display: inline-block;
            padding: 5px 12px;
            font-weight: 800;
            font-size: 0.85rem;
            text-transform: uppercase;
            border: 2px solid var(--dark);
            border-radius: 30px;
            background-color: var(--primary);
            color: var(--dark);
            transform: rotate(-2deg);
        }

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

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

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

        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .ai-page-logo {
            max-height: 45px;
            display: block;
        }

        .logo-text {
            font-weight: 900;
            font-size: 1.4rem;
            color: var(--dark);
            text-decoration: none;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 20px;
            list-style: none;
        }

        .nav-menu a {
            text-decoration: none;
            color: var(--dark);
            font-weight: 700;
            font-size: 0.95rem;
            padding: 5px 10px;
            border-radius: 8px;
            transition: all 0.15s;
        }

        .nav-menu a:hover {
            background-color: var(--primary);
            transform: rotate(2deg);
        }

        .nav-btn {
            background-color: var(--secondary);
            color: white !important;
            border: 2px solid var(--dark);
            box-shadow: 2px 2px 0px var(--dark);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
        }

        .nav-toggle span {
            display: block;
            width: 25px;
            height: 3px;
            background-color: var(--dark);
            border-radius: 3px;
        }

        /* Hero Section (No Image allowed) */
        .hero {
            padding: 80px 0;
            background: radial-gradient(circle, #ffe6001a 10%, transparent 11%);
            background-size: 20px 20px;
            border-bottom: var(--border-width) solid var(--dark);
            position: relative;
        }

        .hero-wrapper {
            max-width: 900px;
            margin: 0 auto;
            text-align: center;
        }

        .hero h1 {
            font-size: 2.8rem;
            font-weight: 900;
            line-height: 1.2;
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }

        .hero-highlight {
            background: linear-gradient(120deg, var(--primary) 0%, var(--primary) 100%);
            background-repeat: no-repeat;
            background-size: 100% 40%;
            background-position: 0 85%;
            padding: 0 4px;
        }

        .hero-desc {
            font-size: 1.2rem;
            color: #4a4a4a;
            margin-bottom: 40px;
            font-weight: 500;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 14px 32px;
            font-weight: 800;
            font-size: 1.1rem;
            text-decoration: none;
            color: var(--dark);
            background-color: var(--primary);
            border: var(--border-width) solid var(--dark);
            border-radius: 12px;
            box-shadow: 4px 4px 0px var(--dark);
            cursor: pointer;
            transition: all 0.15s;
        }

        .btn:hover {
            transform: translate(-2px, -2px);
            box-shadow: 6px 6px 0px var(--dark);
        }

        .btn:active {
            transform: translate(2px, 2px);
            box-shadow: 2px 2px 0px var(--dark);
        }

        .btn-secondary {
            background-color: var(--secondary);
            color: white;
        }

        /* Stats Cards */
        .stats-section {
            padding: 50px 0;
            background-color: white;
            border-bottom: var(--border-width) solid var(--dark);
        }

        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-card {
            background: white;
            padding: 25px;
            text-align: center;
        }

        .stat-card h3 {
            font-size: 2.2rem;
            font-weight: 900;
            color: var(--accent-pink);
            margin-bottom: 5px;
        }

        .stat-card p {
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--dark);
        }

        /* General Section Layout */
        .section-padding {
            padding: 80px 0;
            border-bottom: var(--border-width) solid var(--dark);
        }

        .section-title {
            text-align: center;
            font-size: 2.2rem;
            font-weight: 900;
            margin-bottom: 50px;
            position: relative;
            display: inline-block;
            left: 50%;
            transform: translateX(-50%);
        }

        .section-title::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 0;
            width: 100%;
            height: 6px;
            background-color: var(--primary);
            z-index: -1;
            border-radius: 4px;
        }

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

        .service-card {
            background-color: white;
            padding: 30px;
            position: relative;
            overflow: hidden;
        }

        .service-card .icon-placeholder {
            width: 50px;
            height: 50px;
            border-radius: 10px;
            border: 2px solid var(--dark);
            background-color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 20px;
        }

        .service-card h3 {
            font-size: 1.3rem;
            font-weight: 800;
            margin-bottom: 12px;
        }

        .service-card p {
            font-size: 0.95rem;
            color: #555;
        }

        /* Model Badges Wall */
        .model-wall {
            margin-top: 40px;
            padding: 20px;
            background: #fff9e6;
            text-align: center;
        }

        .model-wall h4 {
            font-weight: 800;
            margin-bottom: 15px;
            font-size: 1.1rem;
        }

        .badges-container {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
        }

        .badge-item {
            padding: 6px 12px;
            background: white;
            border: 2px solid var(--dark);
            border-radius: 8px;
            font-size: 0.85rem;
            font-weight: 700;
        }

        /* OpenClaw Process & Technical Standard */
        .process-flow {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }

        .process-step {
            background-color: white;
            padding: 25px;
            position: relative;
        }

        .step-num {
            position: absolute;
            top: -15px;
            left: 20px;
            background-color: var(--accent-pink);
            color: white;
            font-weight: 900;
            padding: 2px 10px;
            border: 2px solid var(--dark);
            transform: rotate(-5deg);
        }

        .process-step h4 {
            margin-top: 10px;
            font-size: 1.15rem;
            font-weight: 800;
            margin-bottom: 8px;
        }

        .process-step p {
            font-size: 0.9rem;
            color: #666;
        }

        /* Solutions & Software Info */
        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }

        .solution-box {
            background: white;
            padding: 35px;
        }

        .solution-box h3 {
            font-size: 1.5rem;
            font-weight: 900;
            margin-bottom: 15px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .solution-list {
            list-style: none;
            margin-top: 15px;
        }

        .solution-list li {
            position: relative;
            padding-left: 20px;
            margin-bottom: 8px;
            font-size: 0.95rem;
            font-weight: 500;
        }

        .solution-list li::before {
            content: '✦';
            position: absolute;
            left: 0;
            color: var(--accent-pink);
        }

        /* Service Network & Standard Flow */
        .network-section {
            background-color: #f0fdf4;
        }

        .timeline {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
            padding: 20px 0;
        }

        .timeline-item {
            padding: 20px 30px;
            position: relative;
            background: white;
            margin-bottom: 20px;
        }

        .timeline-item::after {
            content: '';
            position: absolute;
            left: -10px;
            top: 50%;
            transform: translateY(-50%) rotate(45deg);
            width: 15px;
            height: 15px;
            background: white;
            border-left: var(--border-width) solid var(--dark);
            border-bottom: var(--border-width) solid var(--dark);
        }

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

        .case-card {
            background: white;
            overflow: hidden;
        }

        .case-img-wrapper {
            border-bottom: var(--border-width) solid var(--dark);
            height: 200px;
            overflow: hidden;
            background: #eee;
        }

        .case-img-wrapper img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .case-content {
            padding: 20px;
        }

        .case-content h4 {
            font-size: 1.15rem;
            font-weight: 800;
            margin-bottom: 8px;
        }

        /* Compare Section */
        .compare-table-wrapper {
            overflow-x: auto;
            background: white;
            padding: 20px;
        }

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

        .compare-table th, .compare-table td {
            padding: 15px;
            border: 2px solid var(--dark);
            font-weight: 700;
        }

        .compare-table th {
            background-color: var(--primary);
        }

        .compare-table tr:nth-child(even) {
            background-color: #fafafa;
        }

        .rating-box {
            display: flex;
            align-items: center;
            gap: 15px;
            background: #fff0f6;
            padding: 20px;
            margin-bottom: 30px;
        }

        .rating-score {
            font-size: 3rem;
            font-weight: 900;
            color: var(--accent-pink);
            line-height: 1;
        }

        /* Token Price Box */
        .token-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .token-card {
            background: white;
            padding: 20px;
            text-align: center;
        }

        .token-price {
            font-size: 1.6rem;
            font-weight: 900;
            color: var(--accent-green);
            margin: 10px 0;
        }

        /* Trainings */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }

        .training-card {
            background: white;
            padding: 30px;
        }

        .training-card h3 {
            font-size: 1.3rem;
            font-weight: 800;
            margin-bottom: 10px;
            color: var(--secondary);
        }

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

        .faq-item {
            background-color: white;
            margin-bottom: 15px;
        }

        .faq-header {
            padding: 20px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 800;
            border-bottom: 2px solid transparent;
        }

        .faq-header.active {
            border-bottom-color: var(--dark);
        }

        .faq-header .arrow {
            transition: transform 0.2s;
            font-size: 1.2rem;
        }

        .faq-header.active .arrow {
            transform: rotate(180deg);
        }

        .faq-body {
            display: none;
            padding: 20px;
            font-size: 0.95rem;
            color: #444;
            background-color: #fafafa;
        }

        /* Comments / Testimonials */
        .comments-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .comment-card {
            background: white;
            padding: 25px;
        }

        .comment-user {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 15px;
        }

        .avatar-placeholder {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            background: var(--primary);
            border: 2px solid var(--dark);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
        }

        .user-info h5 {
            font-weight: 800;
            font-size: 0.95rem;
        }

        .user-info span {
            font-size: 0.75rem;
            color: #666;
        }

        /* Knowledge Base / Articles */
        .articles-list {
            list-style: none;
            max-width: 800px;
            margin: 0 auto;
        }

        .article-item {
            background: white;
            margin-bottom: 15px;
            padding: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 20px;
        }

        .article-item a {
            font-weight: 800;
            text-decoration: none;
            color: var(--dark);
            font-size: 1.05rem;
        }

        .article-item a:hover {
            color: var(--secondary);
        }

        .article-meta {
            font-size: 0.8rem;
            color: #777;
            white-space: nowrap;
        }

        /* Form Section */
        .form-section {
            background: #fffbee;
        }

        .form-wrapper {
            max-width: 650px;
            margin: 0 auto;
            background: white;
            padding: 40px;
        }

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

        .form-group label {
            display: block;
            font-weight: 800;
            margin-bottom: 8px;
            font-size: 0.95rem;
        }

        .form-control {
            width: 100%;
            padding: 12px;
            border: 2px solid var(--dark);
            border-radius: 8px;
            font-family: inherit;
            font-size: 0.95rem;
            color: var(--dark);
            background: #fafafa;
        }

        .form-control:focus {
            outline: none;
            border-color: var(--secondary);
            background: white;
        }

        /* Floating Contact Widget */
        .floating-widget {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 99;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .widget-item {
            width: 55px;
            height: 55px;
            background: white;
            border: 3px solid var(--dark);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: 3px 3px 0px var(--dark);
            transition: all 0.15s;
            position: relative;
            text-decoration: none;
            color: var(--dark);
        }

        .widget-item:hover {
            transform: translate(-2px, -2px);
            box-shadow: 5px 5px 0px var(--dark);
            background-color: var(--primary);
        }

        .widget-popup {
            display: none;
            position: absolute;
            right: 70px;
            bottom: 0;
            background: white;
            border: 3px solid var(--dark);
            padding: 15px;
            border-radius: 12px;
            box-shadow: 4px 4px 0px var(--dark);
            width: 220px;
            text-align: center;
        }

        .widget-popup img {
            width: 100%;
            height: auto;
            border: 2px solid var(--dark);
            margin-bottom: 8px;
        }

        .widget-popup p {
            font-size: 0.85rem;
            font-weight: 800;
        }

        .widget-item:hover .widget-popup {
            display: block;
        }

        /* Footer */
        footer {
            background-color: var(--dark);
            color: white;
            padding: 60px 0 30px 0;
            border-top: var(--border-width) solid var(--dark);
        }

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

        .footer-logo {
            font-weight: 900;
            font-size: 1.6rem;
            color: var(--primary);
            margin-bottom: 15px;
        }

        .footer-col h5 {
            font-size: 1.1rem;
            font-weight: 800;
            margin-bottom: 20px;
            color: var(--primary);
            position: relative;
            padding-bottom: 5px;
        }

        .footer-col h5::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 30px;
            height: 3px;
            background-color: var(--primary);
        }

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

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            color: #ccc;
            text-decoration: none;
            font-weight: 500;
            transition: color 0.15s;
        }

        .footer-links a:hover {
            color: var(--primary);
        }

        .footer-qr-container {
            display: flex;
            gap: 15px;
            align-items: center;
        }

        .footer-qr-item {
            text-align: center;
            font-size: 0.8rem;
            color: #ccc;
        }

        .footer-qr-item img {
            width: 80px;
            height: 80px;
            border: 2px solid white;
            margin-bottom: 5px;
        }

        .friend-links-area {
            border-top: 1px solid #333;
            padding: 20px 0;
            margin-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            align-items: center;
        }

        .friend-links-area span {
            font-weight: 800;
            font-size: 0.9rem;
            color: var(--primary);
        }

        .friend-links-area a {
            color: #aaa;
            text-decoration: none;
            font-size: 0.85rem;
            transition: color 0.15s;
        }

        .friend-links-area a:hover {
            color: white;
        }

        .copyright-area {
            border-top: 1px solid #333;
            padding-top: 25px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
            font-size: 0.85rem;
            color: #999;
        }

        .ai-page-home-link {
            color: var(--primary);
            text-decoration: none;
            font-weight: 700;
        }

        /* Responsive Breakpoints */
        @media (max-width: 1024px) {
            .services-grid, .cases-grid, .comments-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-flow, .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            header {
                padding: 10px 0;
            }
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background-color: var(--light);
                border-bottom: var(--border-width) solid var(--dark);
                padding: 20px;
                gap: 15px;
            }
            .nav-menu.active {
                display: flex;
            }
            .nav-toggle {
                display: flex;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .services-grid, .cases-grid, .comments-grid, .process-flow, .grid-4, .solutions-grid, .training-grid, .token-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .compare-table-wrapper {
                margin: 0 -20px;
                border-radius: 0;
            }
        }