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

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f8f9fa;
        }

        .xiqi-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .xiqi-header {
            background: linear-gradient(135deg, #4285f4 0%, #34a853 100%);
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .xiqi-nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }

        .xiqi-logo {
            display: flex;
            align-items: center;
            color: white;
            text-decoration: none;
            font-size: 24px;
            font-weight: bold;
        }

        .xiqi-logo img {
            height: 40px;
            margin-right: 10px;
        }

        .xiqi-nav-menu {
            display: flex;
            list-style: none;
            gap: 30px;
        }

        .xiqi-nav-link {
            color: white;
            text-decoration: none;
            font-weight: 500;
            transition: all 0.3s ease;
            padding: 8px 16px;
            border-radius: 20px;
        }

        .xiqi-nav-link:hover {
            background-color: rgba(255,255,255,0.2);
            transform: translateY(-2px);
        }

        .xiqi-hero {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 80px 0;
            text-align: center;
        }

        .xiqi-hero-title {
            font-size: 3.5rem;
            margin-bottom: 20px;
            font-weight: 700;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }

        .xiqi-hero-subtitle {
            font-size: 1.3rem;
            margin-bottom: 30px;
            opacity: 0.9;
        }

        .xiqi-breadcrumb {
            background-color: #e9ecef;
            padding: 15px 0;
        }

        .xiqi-breadcrumb-list {
            display: flex;
            list-style: none;
            gap: 10px;
            align-items: center;
        }

        .xiqi-breadcrumb-item {
            color: #6c757d;
        }

        .xiqi-breadcrumb-item::after {
            content: ">";
            margin-left: 10px;
            color: #adb5bd;
        }

        .xiqi-breadcrumb-item:last-child::after {
            display: none;
        }

        .xiqi-breadcrumb-item:last-child {
            color: #4285f4;
            font-weight: 600;
        }

        .xiqi-main {
            padding: 60px 0;
        }

        .xiqi-content-wrapper {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 40px;
        }

        .xiqi-content {
            background: white;
            padding: 40px;
            border-radius: 15px;
            box-shadow: 0 5px 20px rgba(0,0,0,0.1);
        }

        .xiqi-main-title {
            font-size: 2.5rem;
            color: #2c3e50;
            margin-bottom: 30px;
            border-bottom: 3px solid #4285f4;
            padding-bottom: 15px;
        }

        .xiqi-section {
            margin-bottom: 40px;
        }

        .xiqi-section-title {
            font-size: 1.8rem;
            color: #34495e;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
        }

        .xiqi-section-title::before {
            content: "📋";
            margin-right: 10px;
            font-size: 1.5rem;
        }

        .xiqi-step-list {
            list-style: none;
            counter-reset: step-counter;
        }

        .xiqi-step-item {
            counter-increment: step-counter;
            margin-bottom: 25px;
            padding: 20px;
            background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
            border-radius: 10px;
            border-left: 5px solid #4285f4;
            position: relative;
        }

        .xiqi-step-item::before {
            content: counter(step-counter);
            position: absolute;
            left: -15px;
            top: 15px;
            background: #4285f4;
            color: white;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 14px;
        }

        .xiqi-step-title {
            font-size: 1.2rem;
            font-weight: 600;
            color: #2c3e50;
            margin-bottom: 10px;
        }

        .xiqi-step-description {
            color: #5a6c7d;
            line-height: 1.7;
        }

        .xiqi-platform-tabs {
            display: flex;
            margin-bottom: 30px;
            background: #f1f3f4;
            border-radius: 10px;
            padding: 5px;
        }

        .xiqi-tab-button {
            flex: 1;
            padding: 12px 20px;
            background: transparent;
            border: none;
            border-radius: 8px;
            cursor: pointer;
            font-weight: 600;
            transition: all 0.3s ease;
            color: #5f6368;
        }

        .xiqi-tab-button.active {
            background: #4285f4;
            color: white;
            box-shadow: 0 2px 8px rgba(66, 133, 244, 0.3);
        }

        .xiqi-tab-content {
            display: none;
        }

        .xiqi-tab-content.active {
            display: block;
        }

        .xiqi-warning-box {
            background: linear-gradient(135deg, #fff3cd 0%, #ffeaa7 100%);
            border: 1px solid #ffc107;
            border-radius: 10px;
            padding: 20px;
            margin: 20px 0;
        }

        .xiqi-warning-title {
            color: #856404;
            font-weight: 600;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
        }

        .xiqi-warning-title::before {
            content: "⚠️";
            margin-right: 8px;
        }

        .xiqi-sidebar {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }

        .xiqi-sidebar-widget {
            background: white;
            padding: 30px;
            border-radius: 15px;
            box-shadow: 0 5px 20px rgba(0,0,0,0.1);
        }

        .xiqi-widget-title {
            font-size: 1.4rem;
            color: #2c3e50;
            margin-bottom: 20px;
            text-align: center;
        }

        .xiqi-download-button {
            display: block;
            width: 100%;
            padding: 15px 25px;
            background: linear-gradient(135deg, #4285f4 0%, #34a853 100%);
            color: white;
            text-decoration: none;
            border-radius: 50px;
            text-align: center;
            font-weight: 600;
            font-size: 1.1rem;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(66, 133, 244, 0.3);
        }

        .xiqi-download-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 25px rgba(66, 133, 244, 0.4);
        }

        .xiqi-feature-list {
            list-style: none;
        }

        .xiqi-feature-item {
            padding: 10px 0;
            border-bottom: 1px solid #e9ecef;
            display: flex;
            align-items: center;
        }

        .xiqi-feature-item::before {
            content: "✓";
            color: #34a853;
            font-weight: bold;
            margin-right: 10px;
        }

        .xiqi-cta-section {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 60px 0;
            text-align: center;
        }

        .xiqi-cta-title {
            font-size: 2.5rem;
            margin-bottom: 20px;
            font-weight: 700;
        }

        .xiqi-cta-description {
            font-size: 1.2rem;
            margin-bottom: 30px;
            opacity: 0.9;
        }

        .xiqi-cta-button {
            display: inline-block;
            padding: 18px 40px;
            background: #ff6b6b;
            color: white;
            text-decoration: none;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1.2rem;
            transition: all 0.3s ease;
            box-shadow: 0 5px 20px rgba(255, 107, 107, 0.3);
        }

        .xiqi-cta-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 30px rgba(255, 107, 107, 0.4);
        }

        .xiqi-footer {
            background: #2c3e50;
            color: white;
            padding: 50px 0 30px;
        }

        .xiqi-footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 30px;
        }

        .xiqi-footer-section h3 {
            margin-bottom: 20px;
            color: #4285f4;
        }

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

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

        .xiqi-footer-links a {
            color: #bdc3c7;
            text-decoration: none;
            transition: color 0.3s ease;
        }

        .xiqi-footer-links a:hover {
            color: #4285f4;
        }

        .xiqi-footer-bottom {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid #34495e;
            color: #95a5a6;
        }

        @media (max-width: 768px) {
            .xiqi-nav-menu {
                display: none;
            }

            .xiqi-hero-title {
                font-size: 2.5rem;
            }

            .xiqi-content-wrapper {
                grid-template-columns: 1fr;
            }

            .xiqi-main-title {
                font-size: 2rem;
            }

            .xiqi-platform-tabs {
                flex-direction: column;
            }

            .xiqi-tab-button {
                margin-bottom: 5px;
            }
        }