/* CSS Reset & Variable Design (多彩涂鸦风) */
        :root {
            --bg-color: #fbf9f5;
            --text-color: #1a1a1a;
            --primary-border: #121212;
            --yellow: #FFDE47;
            --pink: #FF6F91;
            --blue: #4D96FF;
            --green: #6BCB77;
            --purple: #B1AFFF;
            --card-bg: #ffffff;
            --max-width: 1200px;
        }

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

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

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

        /* Doodle Style Helper Classes */
        .doodle-border {
            border: 3px solid var(--primary-border);
            border-radius: 16px;
            box-shadow: 6px 6px 0px var(--primary-border);
            background-color: var(--card-bg);
            transition: all 0.2s ease;
        }
        .doodle-border:hover {
            transform: translate(-3px, -3px);
            box-shadow: 9px 9px 0px var(--primary-border);
        }

        .doodle-title {
            display: inline-block;
            padding: 8px 16px;
            background-color: var(--yellow);
            border: 3px solid var(--primary-border);
            transform: rotate(-1.5deg);
            font-weight: 900;
            margin-bottom: 24px;
            border-radius: 8px;
        }

        .btn-doodle {
            display: inline-block;
            padding: 12px 28px;
            font-size: 16px;
            font-weight: 800;
            text-align: center;
            text-decoration: none;
            color: var(--text-color);
            background-color: var(--pink);
            border: 3px solid var(--primary-border);
            border-radius: 12px;
            box-shadow: 4px 4px 0px var(--primary-border);
            cursor: pointer;
            transition: all 0.15s ease;
        }
        .btn-doodle:hover {
            transform: translate(-2px, -2px);
            box-shadow: 6px 6px 0px var(--primary-border);
        }
        .btn-doodle:active {
            transform: translate(2px, 2px);
            box-shadow: 2px 2px 0px var(--primary-border);
        }

        /* Header Navigation */
        header {
            background-color: var(--bg-color);
            border-bottom: 3px solid var(--primary-border);
            position: sticky;
            top: 0;
            z-index: 100;
            padding: 12px 0;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .logo-area {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .ai-page-logo {
            height: 48px;
            width: auto;
        }
        .logo-text {
            font-size: 20px;
            font-weight: 900;
            color: var(--text-color);
        }
        .nav-links {
            display: flex;
            gap: 20px;
            list-style: none;
            align-items: center;
        }
        .nav-links a {
            text-decoration: none;
            color: var(--text-color);
            font-weight: 700;
            font-size: 15px;
            padding: 6px 12px;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .nav-links a:hover {
            background-color: var(--yellow);
        }
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 6px;
            background: none;
            border: none;
            cursor: pointer;
        }
        .menu-toggle span {
            display: block;
            width: 25px;
            height: 3px;
            background-color: var(--primary-border);
        }

        /* Section Spacing */
        section {
            padding: 80px 0;
            border-bottom: 3px dashed var(--primary-border);
        }

        /* Hero Section (No Image) */
        .hero {
            background: radial-gradient(circle at 10% 20%, rgba(255,222,71,0.15) 0%, rgba(255,111,145,0.05) 90.2%);
            text-align: center;
            padding: 100px 0;
        }
        .hero h1 {
            font-size: 2.8rem;
            line-height: 1.2;
            margin-bottom: 24px;
            font-weight: 900;
            text-shadow: 2px 2px 0px var(--yellow);
        }
        .hero-desc {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto 36px;
            color: #444;
            font-weight: 500;
        }
        .hero-tags {
            display: flex;
            justify-content: center;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 40px;
        }
        .hero-tag {
            background-color: var(--purple);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 700;
            border: 2px solid var(--primary-border);
        }
        .hero-buttons {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        /* Data Cards (Grid) */
        .data-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 24px;
            margin-top: 50px;
        }
        .data-card {
            padding: 30px 20px;
            text-align: center;
        }
        .data-num {
            font-size: 2.5rem;
            font-weight: 900;
            color: var(--pink);
            margin-bottom: 8px;
        }
        .data-label {
            font-weight: 700;
            color: #555;
        }

        /* About Us */
        .about-layout {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
            align-items: center;
        }
        .about-text p {
            margin-bottom: 20px;
            font-size: 16px;
            color: #333;
        }
        .about-features {
            list-style: none;
        }
        .about-features li {
            margin-bottom: 12px;
            padding-left: 28px;
            position: relative;
            font-weight: 700;
        }
        .about-features li::before {
            content: "✦";
            position: absolute;
            left: 0;
            color: var(--pink);
            font-size: 20px;
        }
        .about-badge {
            background-color: var(--yellow);
            padding: 30px;
            text-align: center;
            transform: rotate(2deg);
        }
        .about-badge h3 {
            font-size: 24px;
            margin-bottom: 10px;
        }

        /* AIGC Platforms Cloud & Services */
        .cloud-wrap {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
            margin-top: 30px;
        }
        .cloud-tag {
            background: #fff;
            border: 2px solid var(--primary-border);
            padding: 8px 16px;
            border-radius: 12px;
            font-weight: 700;
            font-size: 14px;
            box-shadow: 2px 2px 0px var(--primary-border);
            transition: all 0.15s;
        }
        .cloud-tag:hover {
            background-color: var(--blue);
            transform: translateY(-2px);
        }

        /* Services Grid */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
            margin-top: 40px;
        }
        .service-card {
            padding: 30px;
            position: relative;
            overflow: hidden;
        }
        .service-card h3 {
            font-size: 20px;
            margin-bottom: 15px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .service-card .icon {
            font-size: 24px;
            background: var(--yellow);
            padding: 6px;
            border-radius: 8px;
            border: 2px solid var(--primary-border);
        }
        .service-card p {
            font-size: 14px;
            color: #555;
        }

        /* Solutions */
        .solution-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
            margin-top: 40px;
        }
        .solution-card {
            padding: 30px;
        }
        .solution-card h3 {
            margin-bottom: 12px;
            color: var(--pink);
        }

        /* Service Network & Timelines */
        .network-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            margin-top: 40px;
        }
        .network-info {
            padding: 30px;
            background-color: var(--purple);
        }
        .network-list {
            list-style: none;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
        }
        .network-list li {
            background: #fff;
            padding: 10px;
            border: 2px solid var(--primary-border);
            border-radius: 8px;
            font-weight: 700;
            text-align: center;
        }
        .timeline {
            border-left: 4px solid var(--primary-border);
            padding-left: 20px;
            margin-left: 10px;
        }
        .timeline-item {
            position: relative;
            margin-bottom: 30px;
        }
        .timeline-item::before {
            content: "";
            width: 16px;
            height: 16px;
            background: var(--yellow);
            border: 3px solid var(--primary-border);
            border-radius: 50%;
            position: absolute;
            left: -30px;
            top: 5px;
        }
        .timeline-time {
            font-weight: 800;
            color: var(--pink);
            font-size: 14px;
        }
        .timeline-title {
            font-weight: 700;
            font-size: 18px;
            margin-bottom: 5px;
        }

        /* Compare Table */
        .compare-wrap {
            overflow-x: auto;
            margin-top: 40px;
        }
        table.compare-table {
            width: 100%;
            border-collapse: collapse;
            background: #fff;
            border: 3px solid var(--primary-border);
            border-radius: 12px;
            overflow: hidden;
        }
        table.compare-table th, table.compare-table td {
            border: 2px solid var(--primary-border);
            padding: 16px;
            text-align: center;
            font-weight: 700;
        }
        table.compare-table th {
            background-color: var(--yellow);
        }
        table.compare-table tr:nth-child(even) {
            background-color: #fafafa;
        }
        .highlight-col {
            background-color: rgba(255, 111, 145, 0.1);
        }

        /* Image Cases Grid (Responsive) */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
            margin-top: 40px;
        }
        .case-card {
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }
        .case-img-wrap {
            width: 100%;
            height: 200px;
            overflow: hidden;
            border-bottom: 3px solid var(--primary-border);
        }
        .case-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .case-desc {
            padding: 20px;
            background-color: #fff;
            flex-grow: 1;
        }

        /* FAQ Accordion */
        .faq-grid {
            display: flex;
            flex-direction: column;
            gap: 16px;
            margin-top: 40px;
        }
        .faq-item {
            border: 3px solid var(--primary-border);
            border-radius: 12px;
            background: #fff;
            overflow: hidden;
        }
        .faq-question {
            padding: 20px;
            background: #fff;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 800;
            font-size: 16px;
            user-select: none;
            transition: background-color 0.2s;
        }
        .faq-question:hover {
            background-color: var(--yellow);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            border-top: 0px solid var(--primary-border);
            background-color: #fafafa;
        }
        .faq-answer-inner {
            padding: 20px;
            font-size: 14px;
            color: #444;
        }
        .faq-item.active .faq-answer {
            max-height: 200px;
            border-top: 3px solid var(--primary-border);
        }
        .faq-icon::after {
            content: "▼";
            font-size: 12px;
            display: inline-block;
            transition: transform 0.2s;
        }
        .faq-item.active .faq-icon::after {
            transform: rotate(180deg);
        }

        /* Testimonials */
        .comment-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
            margin-top: 40px;
        }
        .comment-card {
            padding: 24px;
            background-color: #fff;
        }
        .comment-user {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 12px;
        }
        .comment-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--blue);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            border: 2px solid var(--primary-border);
        }
        .comment-info h4 {
            font-size: 15px;
            font-weight: 800;
        }
        .comment-info span {
            font-size: 12px;
            color: #777;
        }
        .comment-text {
            font-size: 14px;
            color: #333;
        }

        /* Articles section */
        .articles-container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
            margin-top: 40px;
        }
        .article-box {
            padding: 30px;
            background: #fff;
        }
        .article-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .article-list li {
            border-bottom: 2px dashed #ddd;
            padding-bottom: 10px;
        }
        .article-list li:last-child {
            border-bottom: none;
        }
        .article-list a {
            color: var(--text-color);
            text-decoration: none;
            font-weight: 700;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 14px;
            transition: color 0.2s;
        }
        .article-list a:hover {
            color: var(--pink);
        }

        /* Booking / Contact Form */
        .form-layout {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 40px;
            margin-top: 40px;
        }
        .contact-info {
            padding: 40px;
            background-color: var(--green);
        }
        .contact-info h3 {
            margin-bottom: 24px;
            font-size: 24px;
        }
        .contact-details {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .contact-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-weight: 700;
        }
        .contact-item .icon {
            background: #fff;
            padding: 6px;
            border-radius: 8px;
            border: 2px solid var(--primary-border);
            font-size: 16px;
        }
        .form-box {
            padding: 40px;
            background-color: #fff;
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            font-weight: 800;
            margin-bottom: 8px;
        }
        .form-control {
            width: 100%;
            padding: 12px;
            border: 3px solid var(--primary-border);
            border-radius: 8px;
            font-size: 15px;
            outline: none;
            background-color: var(--bg-color);
        }
        .form-control:focus {
            background-color: #fff;
            border-color: var(--pink);
        }

        /* Float Customer Service */
        .float-cs {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .cs-btn {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background-color: var(--yellow);
            border: 3px solid var(--primary-border);
            box-shadow: 4px 4px 0px var(--primary-border);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            font-weight: 900;
            font-size: 18px;
            position: relative;
            transition: all 0.2s;
        }
        .cs-btn:hover {
            transform: scale(1.1);
        }
        .cs-popup {
            display: none;
            position: absolute;
            bottom: 70px;
            right: 0;
            width: 260px;
            background: #fff;
            padding: 20px;
            border: 3px solid var(--primary-border);
            border-radius: 12px;
            box-shadow: 6px 6px 0px var(--primary-border);
            text-align: center;
        }
        .cs-popup img {
            width: 150px;
            height: 150px;
            margin: 10px auto;
            display: block;
            border: 2px solid var(--primary-border);
        }
        .cs-popup p {
            font-size: 13px;
            font-weight: 700;
            color: #333;
        }

        /* Footer */
        footer {
            background-color: #121212;
            color: #fff;
            padding: 60px 0 30px;
            border-top: 3px solid var(--primary-border);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand h2 {
            color: var(--yellow);
            margin-bottom: 16px;
            font-size: 24px;
        }
        .footer-brand p {
            color: #ccc;
            font-size: 14px;
            line-height: 1.8;
        }
        .footer-links h3, .footer-contact h3 {
            color: var(--pink);
            margin-bottom: 16px;
            font-size: 18px;
            font-weight: 800;
        }
        .footer-links ul {
            list-style: none;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 10px;
        }
        .footer-links a {
            color: #ccc;
            text-decoration: none;
            font-size: 14px;
            transition: color 0.2s;
        }
        .footer-links a:hover {
            color: var(--yellow);
        }
        .footer-contact p {
            font-size: 14px;
            color: #ccc;
            margin-bottom: 10px;
        }
        .footer-contact .qr-box {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-top: 15px;
        }
        .footer-contact .qr-item {
            text-align: center;
            font-size: 12px;
        }
        .footer-contact img {
            width: 80px;
            height: 80px;
            border: 2px solid #fff;
            border-radius: 4px;
            margin-bottom: 5px;
        }
        .footer-bottom {
            border-top: 1px solid #333;
            padding-top: 30px;
            text-align: center;
            font-size: 12px;
            color: #888;
        }
        .friend-links {
            margin-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
            font-size: 13px;
        }
        .friend-links a {
            color: #888;
            text-decoration: none;
            transition: color 0.2s;
        }
        .friend-links a:hover {
            color: var(--yellow);
        }

        /* Mobile Responsive */
        @media (max-width: 992px) {
            .about-layout, .network-grid, .form-layout, .articles-container {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 75px;
                left: 0;
                right: 0;
                background-color: var(--bg-color);
                border-bottom: 3px solid var(--primary-border);
                padding: 20px;
                gap: 15px;
            }
            .nav-links.active {
                display: flex;
            }
            .menu-toggle {
                display: flex;
            }
        }