/* CSS Reset & Variable */
        :root {
            --bg-color: #faf6f0;
            --text-dark: #1a1a1a;
            --text-muted: #4a4a4a;
            --border-color: #1a1a1a;
            
            /* 多彩涂鸦风格主题色 */
            --color-yellow: #ffd043;
            --color-blue: #5ac8fa;
            --color-pink: #ff5b7f;
            --color-green: #4cd964;
            --color-purple: #ac8af8;
            --color-orange: #ff9500;
        }

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

        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: var(--bg-color);
            color: var(--text-dark);
        }

        body {
            line-height: 1.6;
            overflow-x: hidden;
        }

        /* Container */
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 多彩涂鸦风基础卡片规范 */
        .sketch-card {
            background: #ffffff;
            border: 3px solid var(--border-color);
            box-shadow: 6px 6px 0px var(--border-color);
            border-radius: 16px;
            padding: 24px;
            transition: all 0.2s ease-in-out;
            position: relative;
            overflow: hidden;
        }
        .sketch-card:hover {
            transform: translate(-3px, -3px);
            box-shadow: 9px 9px 0px var(--border-color);
        }

        /* 按钮设计 */
        .sketch-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            font-weight: 700;
            font-size: 16px;
            text-decoration: none;
            color: var(--text-dark);
            background: var(--color-yellow);
            border: 3px solid var(--border-color);
            border-radius: 8px;
            box-shadow: 4px 4px 0px var(--border-color);
            cursor: pointer;
            transition: all 0.1s ease;
        }
        .sketch-btn:hover {
            transform: translate(-2px, -2px);
            box-shadow: 6px 6px 0px var(--border-color);
        }
        .sketch-btn:active {
            transform: translate(2px, 2px);
            box-shadow: 2px 2px 0px var(--border-color);
        }
        .sketch-btn.btn-blue { background: var(--color-blue); }
        .sketch-btn.btn-pink { background: var(--color-pink); color: #fff; }
        .sketch-btn.btn-green { background: var(--color-green); }

        /* 标题手绘强调样式 */
        .sketch-title-wrapper {
            text-align: center;
            margin-bottom: 48px;
        }
        .sketch-title {
            display: inline-block;
            font-size: 32px;
            font-weight: 800;
            padding: 8px 16px;
            border: 3px solid var(--border-color);
            box-shadow: 4px 4px 0px var(--border-color);
            background: var(--color-yellow);
            transform: rotate(-1.5deg);
            margin-bottom: 12px;
        }
        .sketch-subtitle {
            font-size: 16px;
            color: var(--text-muted);
            margin-top: 8px;
        }

        /* Header / Navigation */
        header {
            background: #ffffff;
            border-bottom: 3px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 100;
            padding: 12px 0;
        }
        .nav-wrapper {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo-box {
            display: flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
            color: var(--text-dark);
            font-weight: 800;
            font-size: 20px;
        }
        .ai-page-logo {
            height: 40px;
            border: 2px solid var(--border-color);
            border-radius: 6px;
        }
        .nav-links {
            display: flex;
            gap: 20px;
            align-items: center;
            list-style: none;
        }
        .nav-links a {
            text-decoration: none;
            color: var(--text-dark);
            font-weight: 700;
            font-size: 15px;
            padding: 6px 12px;
            border-radius: 6px;
            transition: all 0.2s;
        }
        .nav-links a:hover {
            background: var(--color-yellow);
            box-shadow: 2px 2px 0px var(--border-color);
            border: 1px solid var(--border-color);
            margin: -1px;
        }
        .menu-toggle {
            display: none;
            background: none;
            border: 2px solid var(--border-color);
            border-radius: 6px;
            padding: 6px 10px;
            font-weight: bold;
            cursor: pointer;
        }

        /* Section Layout General */
        section {
            padding: 80px 0;
            border-bottom: 3px solid var(--border-color);
        }

        /* Hero 首屏 (无图) */
        #hero {
            background: radial-gradient(circle at 10% 20%, rgba(255, 208, 67, 0.15) 0%, rgba(90, 200, 250, 0.1) 90%);
            padding: 100px 0 80px 0;
            text-align: center;
            position: relative;
        }
        #hero::before {
            content: '';
            position: absolute;
            top: 20px;
            left: 5%;
            width: 80px;
            height: 80px;
            border: 3px dashed var(--color-pink);
            border-radius: 50%;
            opacity: 0.3;
            z-index: 1;
        }
        #hero::after {
            content: '⭐';
            position: absolute;
            bottom: 40px;
            right: 8%;
            font-size: 40px;
            opacity: 0.4;
            transform: rotate(20deg);
        }
        .hero-badge {
            display: inline-block;
            background: var(--color-pink);
            color: #fff;
            padding: 6px 16px;
            font-weight: bold;
            border-radius: 30px;
            border: 2px solid var(--border-color);
            box-shadow: 3px 3px 0px var(--border-color);
            margin-bottom: 24px;
            transform: rotate(-1deg);
        }
        .hero-h1 {
            font-size: 48px;
            font-weight: 900;
            line-height: 1.2;
            margin-bottom: 24px;
            letter-spacing: -1px;
        }
        .hero-h1 span {
            background: linear-gradient(120deg, var(--color-yellow) 0%, var(--color-orange) 100%);
            padding: 2px 8px;
            border: 2px solid var(--border-color);
            box-shadow: 4px 4px 0px var(--border-color);
            display: inline-block;
            transform: rotate(1deg);
        }
        .hero-desc {
            font-size: 20px;
            max-width: 800px;
            margin: 0 auto 40px auto;
            color: var(--text-muted);
            font-weight: 500;
        }
        .hero-buttons {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .hero-buttons .sketch-btn {
            font-size: 18px;
            padding: 16px 36px;
        }

        /* 核心优势数据指标 */
        .hero-stats {
            margin-top: 60px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-item {
            text-align: center;
            background: #fff;
            border: 2px solid var(--border-color);
            box-shadow: 4px 4px 0px var(--border-color);
            border-radius: 12px;
            padding: 20px;
        }
        .stat-num {
            font-size: 36px;
            font-weight: 900;
            color: var(--text-dark);
            margin-bottom: 4px;
        }
        .stat-num span {
            color: var(--color-pink);
        }
        .stat-label {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-muted);
        }

        /* 关于我们 / 平台介绍 */
        #about {
            background-color: #fff;
        }
        .about-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
            align-items: center;
        }
        .about-content h3 {
            font-size: 24px;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .about-text {
            font-size: 16px;
            color: var(--text-muted);
            margin-bottom: 24px;
        }
        .about-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .about-tag {
            background: var(--color-blue);
            color: var(--text-dark);
            padding: 6px 14px;
            font-weight: bold;
            border-radius: 8px;
            border: 2px solid var(--border-color);
            box-shadow: 2px 2px 0px var(--border-color);
        }
        .about-card {
            background: var(--color-yellow);
            border: 3px solid var(--border-color);
            box-shadow: 6px 6px 0px var(--border-color);
            border-radius: 16px;
            padding: 30px;
            text-align: center;
        }
        .about-card h4 {
            font-size: 22px;
            font-weight: 800;
            margin-bottom: 12px;
        }

        /* 全平台AIGC服务 - 模型墙 */
        #services {
            background-color: #fff;
        }
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 24px;
        }
        .service-card-icon {
            font-size: 40px;
            margin-bottom: 16px;
        }
        .model-list-wrapper {
            margin-top: 48px;
            background: var(--color-purple);
            padding: 30px;
            border: 3px solid var(--border-color);
            box-shadow: 6px 6px 0px var(--border-color);
            border-radius: 16px;
        }
        .model-list-title {
            font-size: 20px;
            font-weight: 800;
            margin-bottom: 20px;
            text-align: center;
            background: #fff;
            display: inline-block;
            padding: 6px 16px;
            border: 2px solid var(--border-color);
            border-radius: 8px;
        }
        .model-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
        }
        .model-tag {
            background: #fff;
            border: 2px solid var(--border-color);
            padding: 6px 12px;
            border-radius: 6px;
            font-size: 14px;
            font-weight: bold;
            transition: all 0.2s;
        }
        .model-tag:hover {
            transform: scale(1.1) rotate(2deg);
            background: var(--color-yellow);
        }

        /* 一站式AIGC制作 - 核心场景 */
        #scenes {
            background: #faf6f0;
        }
        .scenes-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }
        .scene-card .scene-badge {
            position: absolute;
            top: 15px;
            right: 15px;
            background: var(--color-pink);
            color: #fff;
            padding: 4px 10px;
            border: 2px solid var(--border-color);
            font-size: 12px;
            font-weight: bold;
            border-radius: 4px;
        }

        /* 全行业解决方案 - 包含横版/方版素材 */
        #solutions {
            background: #fff;
        }
        .solution-split {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            margin-bottom: 60px;
        }
        .solution-split:nth-child(even) {
            direction: rtl;
        }
        .solution-split:nth-child(even) .solution-info {
            direction: ltr;
        }
        .solution-img-wrapper {
            border: 3px solid var(--border-color);
            box-shadow: 8px 8px 0px var(--border-color);
            border-radius: 16px;
            overflow: hidden;
            background: #fff;
        }
        .solution-img-wrapper img {
            width: 100%;
            height: auto;
            display: block;
            object-fit: cover;
            transition: transform 0.3s;
        }
        .solution-img-wrapper:hover img {
            transform: scale(1.03);
        }
        .solution-info {
            padding: 20px;
        }
        .solution-info h3 {
            font-size: 26px;
            font-weight: 800;
            margin-bottom: 16px;
        }

        /* 全国服务网络 + 步骤流程 */
        #network-process {
            background: #faf6f0;
        }
        .network-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            margin-bottom: 60px;
        }
        .map-card {
            background: var(--color-blue);
        }
        .map-card ul {
            list-style: none;
            padding-left: 0;
            margin-top: 16px;
        }
        .map-card li {
            position: relative;
            padding-left: 20px;
            margin-bottom: 10px;
            font-weight: bold;
        }
        .map-card li::before {
            content: '📍';
            position: absolute;
            left: 0;
        }
        .process-flow {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .process-step {
            display: flex;
            align-items: center;
            gap: 16px;
            background: #fff;
            border: 2px solid var(--border-color);
            border-radius: 10px;
            padding: 16px;
            position: relative;
        }
        .process-num {
            width: 36px;
            height: 36px;
            background: var(--color-yellow);
            border: 2px solid var(--border-color);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
        }

        /* 对比评测 - 突出核心优势 */
        #evaluation {
            background: #fff;
        }
        .eval-header {
            display: flex;
            justify-content: space-around;
            background: var(--color-yellow);
            border: 3px solid var(--border-color);
            border-radius: 16px;
            padding: 30px;
            box-shadow: 6px 6px 0px var(--border-color);
            margin-bottom: 48px;
            flex-wrap: wrap;
            gap: 20px;
            text-align: center;
        }
        .eval-score-box h4 {
            font-size: 18px;
            font-weight: 800;
        }
        .eval-score-num {
            font-size: 54px;
            font-weight: 900;
            color: var(--text-dark);
        }
        .eval-stars {
            font-size: 28px;
            color: var(--color-orange);
            margin-top: 6px;
        }
        .table-responsive {
            width: 100%;
            overflow-x: auto;
            border: 3px solid var(--border-color);
            box-shadow: 6px 6px 0px var(--border-color);
            border-radius: 16px;
            background: #fff;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 600px;
        }
        th, td {
            padding: 16px 20px;
            border-bottom: 2px solid var(--border-color);
            font-weight: bold;
        }
        th {
            background: var(--color-blue);
            color: var(--text-dark);
            font-weight: 900;
        }
        tr:last-child td {
            border-bottom: none;
        }
        .table-highlight {
            background: rgba(255, 208, 67, 0.15);
        }

        /* Token比价与技术标准 */
        #pricing {
            background: #faf6f0;
        }
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
            margin-top: 30px;
        }
        .pricing-card {
            text-align: center;
        }
        .pricing-card.popular {
            border-color: var(--color-pink);
            box-shadow: 6px 6px 0px var(--color-pink);
        }
        .pricing-price {
            font-size: 32px;
            font-weight: 900;
            margin: 16px 0;
        }

        /* 职业技术培训 */
        #training {
            background: #fff;
        }
        .training-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
        }
        .training-card {
            background: #fff;
            border: 2px solid var(--border-color);
            border-radius: 12px;
            padding: 24px;
            text-align: center;
            box-shadow: 4px 4px 0px var(--border-color);
        }
        .training-card h4 {
            font-size: 18px;
            font-weight: 800;
            margin-bottom: 12px;
            background: var(--color-green);
            padding: 6px;
            border: 2px solid var(--border-color);
            border-radius: 6px;
        }

        /* 客户案例中心 (包含宣传图) */
        #cases {
            background: #faf6f0;
        }
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 24px;
        }
        .case-img-box {
            border: 2px solid var(--border-color);
            border-radius: 12px;
            overflow: hidden;
            margin-bottom: 16px;
            aspect-ratio: 16/10;
        }
        .case-img-box img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* 客户评论卡片 (6条) */
        #reviews {
            background: #fff;
        }
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 24px;
        }
        .review-user {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 16px;
        }
        .review-avatar {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--color-blue);
            border: 2px solid var(--border-color);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
        }
        .review-avatar.avatar-pink { background: var(--color-pink); }
        .review-avatar.avatar-yellow { background: var(--color-yellow); }
        .review-avatar.avatar-green { background: var(--color-green); }
        .review-avatar.avatar-purple { background: var(--color-purple); }
        .review-avatar.avatar-orange { background: var(--color-orange); }

        /* 智能需求匹配 + 联系我们 + 加盟代理 */
        #contact {
            background: #faf6f0;
        }
        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }
        .form-card {
            background: #fff;
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .form-control {
            width: 100%;
            padding: 12px;
            border: 2px solid var(--border-color);
            border-radius: 8px;
            font-size: 15px;
            font-family: inherit;
        }
        .form-control:focus {
            outline: none;
            border-color: var(--color-blue);
            box-shadow: 2px 2px 0px var(--border-color);
        }
        .contact-info-card {
            background: var(--color-yellow);
        }
        .agent-banner {
            background: var(--color-pink);
            color: #fff;
            border: 2px solid var(--border-color);
            border-radius: 8px;
            padding: 16px;
            margin-top: 24px;
            box-shadow: 3px 3px 0px var(--border-color);
        }
        .qr-box {
            display: flex;
            align-items: center;
            gap: 20px;
            margin-top: 24px;
            background: #fff;
            padding: 16px;
            border: 2px solid var(--border-color);
            border-radius: 10px;
        }
        .qr-box img {
            width: 100px;
            height: 100px;
            border: 2px solid var(--border-color);
        }

        /* 帮助中心 (FAQ 折叠面板 - 10条以上) */
        #faq-section {
            background: #fff;
        }
        .faq-wrapper {
            max-width: 900px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .faq-item {
            border: 2px solid var(--border-color);
            border-radius: 10px;
            background: #fff;
            overflow: hidden;
            box-shadow: 3px 3px 0px var(--border-color);
        }
        .faq-question {
            padding: 18px 24px;
            font-weight: 800;
            background: #fff;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
            transition: background 0.2s;
        }
        .faq-question:hover {
            background: var(--color-yellow);
        }
        .faq-question::after {
            content: '＋';
            font-size: 20px;
            font-weight: bold;
        }
        .faq-item.active .faq-question::after {
            content: '－';
        }
        .faq-answer {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: all 0.3s ease-out;
            background: #fafbfe;
            border-top: 0 solid var(--border-color);
            color: var(--text-muted);
            font-weight: 500;
        }
        .faq-item.active .faq-answer {
            padding: 18px 24px;
            max-height: 500px;
            border-top: 2px solid var(--border-color);
        }

        /* AI术语百科 & 行业知识库 (最新文章) */
        #knowledge {
            background: #faf6f0;
        }
        .terms-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            margin-bottom: 48px;
        }
        .term-badge {
            background: #fff;
            border: 2px solid var(--border-color);
            border-radius: 20px;
            padding: 6px 16px;
            font-size: 14px;
            font-weight: 700;
            box-shadow: 2px 2px 0px var(--border-color);
        }
        .articles-wrapper {
            background: #fff;
            border: 3px solid var(--border-color);
            box-shadow: 6px 6px 0px var(--border-color);
            border-radius: 16px;
            padding: 30px;
        }
        .articles-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .articles-list li {
            border-bottom: 2px dashed var(--border-color);
            padding-bottom: 12px;
        }
        .articles-list li:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }
        .articles-list a {
            text-decoration: none;
            color: var(--text-dark);
            font-weight: 700;
            font-size: 16px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .articles-list a:hover {
            color: var(--color-pink);
        }
        .article-date {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: normal;
        }

        /* Footer */
        footer {
            background: #1a1a1a;
            color: #ffffff;
            padding: 60px 0 30px 0;
            border-top: 4px solid var(--border-color);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand h3 {
            font-size: 24px;
            font-weight: 900;
            margin-bottom: 16px;
            color: var(--color-yellow);
        }
        .footer-brand p {
            color: #cccccc;
            margin-bottom: 16px;
        }
        .footer-links h4 {
            font-size: 18px;
            font-weight: 800;
            margin-bottom: 20px;
            color: var(--color-blue);
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: #cccccc;
            text-decoration: none;
            transition: color 0.2s;
            font-weight: bold;
        }
        .footer-links a:hover {
            color: var(--color-yellow);
        }
        .friendship-links {
            border-top: 1px solid #333;
            padding-top: 24px;
            margin-bottom: 24px;
        }
        .friendship-links h5 {
            font-size: 14px;
            margin-bottom: 12px;
            color: #999;
        }
        .friendship-links-list {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .friendship-links-list a {
            color: #999;
            text-decoration: none;
            font-size: 13px;
            font-weight: bold;
        }
        .friendship-links-list a:hover {
            color: #fff;
        }
        .footer-bottom {
            text-align: center;
            border-top: 1px solid #333;
            padding-top: 24px;
            color: #999;
            font-size: 14px;
        }

        /* 悬浮客服 */
        .float-contact {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 99;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .float-btn {
            width: 56px;
            height: 56px;
            background: var(--color-yellow);
            border: 3px solid var(--border-color);
            box-shadow: 4px 4px 0px var(--border-color);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            text-decoration: none;
            color: var(--text-dark);
            font-size: 24px;
            font-weight: bold;
            position: relative;
        }
        .float-btn:hover {
            transform: translate(-2px, -2px);
            box-shadow: 6px 6px 0px var(--border-color);
        }
        .float-qr-popup {
            position: absolute;
            bottom: 70px;
            right: 0;
            background: #fff;
            border: 3px solid var(--border-color);
            border-radius: 12px;
            padding: 16px;
            box-shadow: 6px 6px 0px var(--border-color);
            display: none;
            text-align: center;
            width: 180px;
        }
        .float-qr-popup img {
            width: 140px;
            height: 140px;
            display: block;
            margin-bottom: 8px;
        }
        .float-qr-popup p {
            font-size: 12px;
            color: var(--text-dark);
            font-weight: bold;
        }

        /* Responsive Design */
        @media (max-width: 992px) {
            .hero-stats {
                grid-template-columns: repeat(2, 1fr);
            }
            .about-grid, .solution-split, .network-grid, .contact-grid {
                grid-template-columns: 1fr;
            }
            .solution-split:nth-child(even) {
                direction: ltr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }

        @media (max-width: 768px) {
            header {
                padding: 16px 0;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #fff;
                border-bottom: 3px solid var(--border-color);
                padding: 20px;
                gap: 16px;
                box-shadow: 0 4px 10px rgba(0,0,0,0.1);
            }
            .nav-links.active {
                display: flex;
            }
            .menu-toggle {
                display: block;
            }
            .hero-h1 {
                font-size: 32px;
            }
            .hero-desc {
                font-size: 16px;
            }
            section {
                padding: 50px 0;
            }
            .sketch-title {
                font-size: 24px;
            }
        }