:root {
            --zmq67-primary: #D11111;
            --zmq67-primary-hover: #B00E0E;
            --zmq67-bg: #F8FAFC;
            --zmq67-text-main: #1E293B;
            --zmq67-text-muted: #64748B;
            --zmq67-white: #FFFFFF;
            --zmq67-glass: rgba(255, 255, 255, 0.8);
            --zmq67-shadow: 0 10px 30px -10px rgba(0,0,0,0.1);
            --zmq67-radius: 16px;
            --zmq67-max-width: 1320px;
        }

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
            background-color: var(--zmq67-bg);
            color: var(--zmq67-text-main);
            line-height: 1.6;
            overflow-x: hidden;
        }

        /* Typography */
        h1, h2, h3 {
            line-height: 1.2;
            word-break: keep-all;
            white-space: normal;
        }

        .zmq67-fluid-h1 { font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 800; }
        .zmq67-fluid-h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); font-weight: 700; }
        .zmq67-fluid-p { font-size: clamp(1rem, 1.2vw, 1.15rem); color: var(--zmq67-text-muted); }

        /* Navigation */
        .zmq67-navbar {
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
            background: var(--zmq67-glass);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(0,0,0,0.05);
            padding: 0 24px;
        }

        .zmq67-nav-container {
            max-width: var(--zmq67-max-width);
            margin: 0 auto;
            height: 72px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }

        .zmq67-logo {
            flex-shrink: 0;
            min-width: 0;
        }

        .zmq67-logo img {
            height: 32px;
            width: auto;
            display: block;
        }

        .zmq67-nav-menu {
            display: flex;
            list-style: none;
            gap: 24px;
            flex-wrap: wrap;
            min-width: 0;
        }

        .zmq67-nav-menu a {
            text-decoration: none;
            color: var(--zmq67-text-main);
            font-weight: 500;
            font-size: 15px;
            transition: color 0.3s;
            padding: 8px 0;
            position: relative;
        }

        .zmq67-nav-menu a:hover {
            color: var(--zmq67-primary);
        }

        .zmq67-nav-menu a.active {
            color: var(--zmq67-primary);
        }

        .zmq67-nav-menu a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--zmq67-primary);
        }

        /* Hero / Conversion Hub */
        .zmq67-hero {
            padding: 160px 24px 80px;
            background: radial-gradient(circle at 70% 20%, rgba(209, 17, 17, 0.05) 0%, transparent 50%),
                        radial-gradient(circle at 10% 80%, rgba(0, 102, 255, 0.03) 0%, transparent 50%);
            text-align: center;
        }

        .zmq67-hero-content {
            max-width: 800px;
            margin: 0 auto 64px;
            word-break: break-word;
        }

        .zmq67-hero-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(209, 17, 17, 0.1);
            color: var(--zmq67-primary);
            border-radius: 100px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 24px;
        }

        /* The Unique Conversion Box */
        .zmq67-convert-box {
            max-width: 900px;
            margin: 0 auto;
            background: var(--zmq67-white);
            border-radius: 24px;
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.08);
            padding: 48px;
            border: 1px solid rgba(0,0,0,0.03);
            position: relative;
            z-index: 10;
        }

        .zmq67-drop-zone {
            border: 2px dashed #E2E8F0;
            border-radius: var(--zmq67-radius);
            padding: 64px 24px;
            background: #F8FAFC;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            min-width: 0;
        }

        .zmq67-drop-zone:hover {
            border-color: var(--zmq67-primary);
            background: rgba(209, 17, 17, 0.02);
            transform: translateY(-2px);
        }

        .zmq67-upload-icon {
            font-size: 48px;
            margin-bottom: 16px;
        }

        .zmq67-btn-primary {
            background: linear-gradient(135deg, var(--zmq67-primary) 0%, #E53935 100%);
            color: white;
            padding: 16px 40px;
            border-radius: 12px;
            font-size: 18px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all 0.3s;
            box-shadow: 0 10px 20px -5px rgba(209, 17, 17, 0.3);
            margin-top: 24px;
            text-decoration: none;
            display: inline-block;
        }

        .zmq67-btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 15px 30px -5px rgba(209, 17, 17, 0.4);
        }

        /* Features Section */
        .zmq67-section {
            padding: 96px 24px;
            max-width: var(--zmq67-max-width);
            margin: 0 auto;
        }

        .zmq67-section-title {
            text-align: center;
            margin-bottom: 64px;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }

        .zmq67-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 32px;
        }

        .zmq67-card {
            background: var(--zmq67-white);
            padding: 40px;
            border-radius: var(--zmq67-radius);
            border: 1px solid #F1F5F9;
            transition: all 0.3s;
            min-width: 0;
            word-break: break-word;
        }

        .zmq67-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--zmq67-shadow);
        }

        .zmq67-card-icon {
            width: 56px;
            height: 56px;
            background: #FFF1F1;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: 24px;
        }

        /* AI PDF Section - Side by Side */
        .zmq67-ai-section {
            background: #111827;
            color: white;
            border-radius: 32px;
            margin: 48px auto;
            padding: 80px 64px;
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 64px;
            max-width: var(--zmq67-max-width);
        }

        .zmq67-ai-content {
            flex: 1;
            min-width: 320px;
        }

        .zmq67-ai-visual {
            flex: 1;
            min-width: 320px;
            background: linear-gradient(45deg, #1F2937, #374151);
            border-radius: 24px;
            padding: 40px;
            border: 1px solid rgba(255,255,255,0.1);
        }

        .zmq67-tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 32px;
        }

        .zmq67-tag {
            padding: 6px 14px;
            background: rgba(255,255,255,0.1);
            border-radius: 6px;
            font-size: 14px;
        }

        /* Articles / News */
        .zmq67-news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 24px;
        }

        .zmq67-news-item {
            background: var(--zmq67-white);
            border-radius: 16px;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            border: 1px solid #F1F5F9;
        }

        .zmq67-news-body {
            padding: 24px;
            flex-grow: 1;
        }

        .zmq67-news-meta {
            font-size: 13px;
            color: var(--zmq67-text-muted);
            margin-bottom: 12px;
        }

        /* Footer */
        .zmq67-footer {
            background: #F1F5F9;
            padding: 80px 24px 40px;
            margin-top: 96px;
        }

        .zmq67-footer-inner {
            max-width: var(--zmq67-max-width);
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 48px;
        }

        .zmq67-footer-col {
            flex: 1;
            min-width: 200px;
        }

        .zmq67-footer-brand {
            font-size: 20px;
            font-weight: 700;
            color: var(--zmq67-text-main);
            margin-bottom: 16px;
        }

        .zmq67-footer-links {
            list-style: none;
        }

        .zmq67-footer-links li {
            margin-bottom: 12px;
        }

        .zmq67-footer-links a {
            text-decoration: none;
            color: var(--zmq67-text-muted);
            transition: color 0.3s;
        }

        .zmq67-footer-links a:hover {
            color: var(--zmq67-primary);
        }

        .zmq67-copyright {
            text-align: center;
            padding-top: 48px;
            margin-top: 48px;
            border-top: 1px solid rgba(0,0,0,0.05);
            color: var(--zmq67-text-muted);
            font-size: 14px;
        }

        /* Responsive */
        @media (max-width: 768px) {
            .zmq67-nav-menu {
                display: none; /* In a real site, implement a hamburger */
            }
            .zmq67-hero { padding-top: 120px; }
            .zmq67-convert-box { padding: 24px; }
            .zmq67-ai-section { padding: 40px 24px; }
            .zmq67-section { padding: 64px 24px; }
        }

        /* Animation enhancement */
        .zmq67-card:hover .zmq67-card-icon {
            background: var(--zmq67-primary);
            color: white;
            transform: scale(1.1) rotate(5deg);
            transition: all 0.3s;
        }