/* CSS Reset & Variable Definitions */
        :root {
            --primary: #ffe600; /* 亮黄 */
            --secondary: #ff4a80; /* 玫红 */
            --info: #3bc4ff; /* 天蓝 */
            --success: #4ee1a6; /* 绿 */
            --dark: #1a1a1a;
            --light: #faf9f5; /* 温暖浅底色 */
            --white: #ffffff;
            --border-width: 3px;
            --border: var(--border-width) solid var(--dark);
            --shadow: 5px 5px 0px var(--dark);
            --shadow-hover: 8px 8px 0px var(--dark);
        }

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

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

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

        h1, h2, h3, h4, h5, h6 {
            font-weight: 900;
            line-height: 1.2;
            margin-bottom: 15px;
        }

        a {
            color: var(--dark);
            text-decoration: none;
            transition: all 0.2s ease;
        }

        /* Neo-Brutalism Doodle Style Components */
        .doodle-card {
            background-color: var(--white);
            border: var(--border);
            box-shadow: var(--shadow);
            border-radius: 16px;
            padding: 30px;
            transition: transform 0.2s ease, box-shadow 0.2s ease;
            position: relative;
            overflow: hidden;
        }

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

        .doodle-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background-color: var(--primary);
            border: var(--border);
            box-shadow: 4px 4px 0px var(--dark);
            border-radius: 8px;
            color: var(--dark);
            font-weight: 800;
            padding: 12px 28px;
            cursor: pointer;
            transition: all 0.1s ease;
            text-transform: uppercase;
            font-size: 1rem;
        }

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

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

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

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

        .badge {
            display: inline-block;
            padding: 6px 12px;
            font-weight: bold;
            font-size: 0.85rem;
            border: var(--border);
            border-radius: 20px;
            box-shadow: 2px 2px 0px var(--dark);
            background-color: var(--success);
            margin-bottom: 10px;
        }

        /* Decorative scribbles */
        .scribble-line {
            height: 6px;
            background: repeating-linear-gradient(45deg, var(--dark), var(--dark) 10px, transparent 10px, transparent 20px);
            border: none;
            margin: 40px 0;
        }

        /* Header Navigation */
        header {
            background-color: var(--white);
            border-bottom: var(--border);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 15px 0;
        }

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

        .brand {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .brand img {
            height: 45px;
            width: auto;
        }

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

        .nav-link {
            font-weight: 700;
            padding: 8px 12px;
            border-radius: 6px;
        }

        .nav-link:hover {
            background-color: var(--primary);
            outline: 2px solid var(--dark);
        }

        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 6px;
            cursor: pointer;
            border: var(--border);
            padding: 8px;
            border-radius: 8px;
            background: var(--white);
        }

        .menu-toggle span {
            width: 25px;
            height: 3px;
            background-color: var(--dark);
            transition: all 0.3s ease;
        }

        /* Hero Section (No Image) */
        .hero {
            padding: 80px 0 60px;
            background: linear-gradient(135deg, #fff7d6 0%, #fff 100%);
            border-bottom: var(--border);
            position: relative;
        }

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

        .hero h1 {
            font-size: 3rem;
            margin-bottom: 20px;
            text-shadow: 2px 2px 0px var(--info);
        }

        .hero p {
            font-size: 1.25rem;
            margin-bottom: 35px;
            color: #4a4a4a;
            font-weight: 500;
        }

        .hero-btns {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
            margin-bottom: 40px;
        }

        /* Feature grid */
        .hero-highlights {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
            margin-top: 50px;
        }

        .highlight-card {
            background-color: var(--white);
            border: var(--border);
            box-shadow: 4px 4px 0 var(--dark);
            border-radius: 12px;
            padding: 20px;
            text-align: center;
        }

        .highlight-card h4 {
            font-size: 1.5rem;
            color: var(--secondary);
            margin-bottom: 8px;
        }

        /* Section Layout */
        section {
            padding: 70px 0;
        }

        .section-title {
            text-align: center;
            margin-bottom: 50px;
            position: relative;
        }

        .section-title h2 {
            font-size: 2.2rem;
            display: inline-block;
            position: relative;
            z-index: 1;
            padding: 0 15px;
        }

        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 12px;
            background-color: var(--primary);
            z-index: -1;
            transform: skewX(-15deg);
        }

        /* Grid utilities */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }

        .grid-2 {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
            gap: 30px;
        }

        .grid-4 {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 20px;
        }

        /* Service Cards & Tech Badges */
        .tech-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 15px;
        }

        .tech-tag {
            background-color: var(--light);
            border: 1px solid var(--dark);
            padding: 4px 8px;
            font-size: 0.8rem;
            border-radius: 4px;
            font-weight: bold;
        }

        /* Comparison Table */
        .table-responsive {
            overflow-x: auto;
            border: var(--border);
            box-shadow: var(--shadow);
            border-radius: 12px;
            background: var(--white);
            margin-bottom: 40px;
        }

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

        th, td {
            padding: 16px 20px;
            border-bottom: 2px solid var(--dark);
            font-weight: 700;
        }

        th {
            background-color: var(--primary);
            color: var(--dark);
            border-bottom: var(--border);
        }

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

        .highlight-row {
            background-color: rgba(255, 230, 0, 0.1);
        }

        /* Timeline for Process */
        .timeline {
            position: relative;
            padding-left: 30px;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 0;
            bottom: 0;
            width: 4px;
            background-color: var(--dark);
        }

        .timeline-item {
            position: relative;
            margin-bottom: 30px;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -28px;
            top: 6px;
            width: 16px;
            height: 16px;
            background-color: var(--secondary);
            border: 2px solid var(--dark);
            border-radius: 50%;
        }

        /* Form styling */
        .form-group {
            margin-bottom: 20px;
        }

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

        .form-control {
            width: 100%;
            padding: 12px;
            border: var(--border);
            border-radius: 8px;
            background-color: var(--light);
            font-family: inherit;
            font-weight: 600;
            outline: none;
        }

        .form-control:focus {
            background-color: var(--white);
            box-shadow: 3px 3px 0 var(--dark);
        }

        /* FAQ Accordion */
        .faq-item {
            border: var(--border);
            border-radius: 8px;
            margin-bottom: 15px;
            background-color: var(--white);
            overflow: hidden;
        }

        .faq-question {
            padding: 18px 24px;
            background-color: var(--white);
            font-weight: 800;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
        }

        .faq-question::after {
            content: '+';
            font-size: 1.5rem;
            font-weight: 900;
            transition: transform 0.2s ease;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.2s ease-out;
            background-color: var(--light);
            border-top: 0 solid var(--dark);
        }

        .faq-item.active .faq-answer {
            max-height: 200px;
            padding: 18px 24px;
            border-top: var(--border);
        }

        /* Floating Widgets */
        .floating-contact {
            position: fixed;
            right: 25px;
            bottom: 25px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .float-btn {
            width: 54px;
            height: 54px;
            border: var(--border);
            border-radius: 50%;
            background-color: var(--primary);
            box-shadow: 3px 3px 0 var(--dark);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.1s ease;
            position: relative;
        }

        .float-btn:hover {
            transform: translate(-2px, -2px);
            box-shadow: 5px 5px 0 var(--dark);
        }

        .float-btn img {
            width: 24px;
            height: 24px;
        }

        .float-qr {
            position: absolute;
            bottom: 65px;
            right: 0;
            background-color: var(--white);
            border: var(--border);
            border-radius: 8px;
            padding: 10px;
            box-shadow: var(--shadow);
            display: none;
            text-align: center;
            width: 140px;
        }

        .float-qr img {
            width: 100%;
            height: auto;
        }

        .float-btn:hover .float-qr {
            display: block;
        }

        /* Media display responsive */
        .showcase-img {
            width: 100%;
            border: var(--border);
            box-shadow: var(--shadow);
            border-radius: 12px;
            margin-bottom: 20px;
            object-fit: cover;
            display: block;
        }

        /* Footer styling */
        footer {
            background-color: var(--dark);
            color: var(--white);
            padding: 60px 0 20px;
            border-top: 5px solid var(--primary);
        }

        footer h4 {
            color: var(--primary);
            margin-bottom: 20px;
        }

        footer a {
            color: #d1d1d1;
        }

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

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-bottom {
            border-top: 1px solid #333;
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
            font-size: 0.9rem;
            color: #888;
        }

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

        .footer-links a {
            font-size: 0.85rem;
            background: #252525;
            padding: 4px 10px;
            border-radius: 4px;
            border: 1px solid #333;
        }

        /* Article list styling */
        .article-card {
            border: var(--border);
            border-radius: 10px;
            background-color: var(--white);
            margin-bottom: 15px;
            padding: 15px;
            transition: all 0.2s ease;
        }

        .article-card:hover {
            transform: scale(1.01);
            border-color: var(--secondary);
        }

        .article-card h5 {
            font-size: 1.1rem;
            margin-bottom: 5px;
        }

        .article-card a {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .article-card .date {
            font-size: 0.8rem;
            color: #666;
            font-weight: normal;
        }

        /* Mobile adaptation */
        @media (max-width: 991px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background-color: var(--white);
                border-bottom: var(--border);
                padding: 20px;
                gap: 15px;
                box-shadow: 0 4px 6px rgba(0,0,0,0.1);
            }

            .nav-menu.active {
                display: flex;
            }

            .menu-toggle {
                display: flex;
            }

            .hero h1 {
                font-size: 2.2rem;
            }
        }