:root {
            --primary-red: #e10600;
            --dark-bg: #1a1a1a;
            --light-bg: #f5f5f5;
            --text-dark: #333333;
            --text-light: #ffffff;
            --accent-yellow: #ffd700;
            --grid-gray: #666666;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.8;
            color: var(--text-dark);
            background-color: var(--light-bg);
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: var(--dark-bg);
            padding: 1.2rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.4rem;
            font-weight: 900;
            background: linear-gradient(90deg, var(--primary-red) 0%, #ff6b6b 100%);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-transform: uppercase;
            letter-spacing: 2px;
        }
        .my-logo a {
            text-decoration: none;
            color: inherit;
            transition: transform 0.3s ease;
            display: block;
        }
        .my-logo a:hover {
            transform: scale(1.05);
        }
        .main-nav {
            display: flex;
            gap: 2rem;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 1.8rem;
            align-items: center;
        }
        .nav-list a {
            color: var(--text-light);
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: all 0.3s ease;
            position: relative;
        }
        .nav-list a:hover {
            background-color: var(--primary-red);
            color: white;
        }
        .nav-list a::after {
            content: '';
            position: absolute;
            width: 0;
            height: 3px;
            background: var(--primary-red);
            bottom: -5px;
            left: 50%;
            transform: translateX(-50%);
            transition: width 0.3s ease;
        }
        .nav-list a:hover::after {
            width: 80%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.5rem;
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: #2a2a2a;
            color: #ccc;
        }
        .breadcrumb-list {
            display: flex;
            list-style: none;
            gap: 0.8rem;
            flex-wrap: wrap;
        }
        .breadcrumb-list li {
            display: flex;
            align-items: center;
        }
        .breadcrumb-list a {
            color: #aaa;
            text-decoration: none;
            transition: color 0.3s;
        }
        .breadcrumb-list a:hover {
            color: var(--primary-red);
        }
        .breadcrumb-list i {
            margin: 0 0.5rem;
            font-size: 0.8rem;
        }
        main {
            padding: 2.5rem 0;
            background-color: white;
            box-shadow: 0 0 30px rgba(0, 0, 0, 0.1);
            border-radius: 10px;
            margin: 2rem auto;
        }
        article {
            padding: 0 2rem;
        }
        h1 {
            font-size: 3.2rem;
            color: var(--dark-bg);
            margin-bottom: 2rem;
            padding-bottom: 1rem;
            border-bottom: 5px solid var(--primary-red);
            text-align: center;
            line-height: 1.2;
        }
        h2 {
            font-size: 2.4rem;
            color: var(--dark-bg);
            margin: 3rem 0 1.5rem;
            padding-left: 1rem;
            border-left: 6px solid var(--primary-red);
        }
        h3 {
            font-size: 1.8rem;
            color: #444;
            margin: 2.5rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #eee;
        }
        h4 {
            font-size: 1.4rem;
            color: #555;
            margin: 2rem 0 1rem;
            font-weight: 600;
        }
        p {
            margin-bottom: 1.8rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .lead {
            font-size: 1.3rem;
            font-weight: 500;
            background-color: #f9f9f9;
            padding: 1.5rem;
            border-radius: 8px;
            border-left: 4px solid var(--primary-red);
            margin-bottom: 2.5rem;
        }
        .highlight {
            background-color: rgba(225, 6, 0, 0.1);
            padding: 0.2rem 0.5rem;
            border-radius: 3px;
            font-weight: 600;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.5rem;
        }
        .content-image {
            width: 100%;
            max-width: 900px;
            height: auto;
            border-radius: 10px;
            margin: 2.5rem auto;
            display: block;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
            transition: transform 0.5s ease;
        }
        .content-image:hover {
            transform: scale(1.02);
        }
        .caption {
            text-align: center;
            font-style: italic;
            color: #666;
            margin-top: 0.5rem;
            font-size: 0.95rem;
        }
        .interactive-section {
            background-color: #f8f9fa;
            padding: 2.5rem;
            border-radius: 15px;
            margin: 3.5rem 0;
            border: 1px solid #e0e0e0;
        }
        .form-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2.5rem;
            margin-top: 2rem;
        }
        .form-box {
            background-color: white;
            padding: 2rem;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .form-box:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
        }
        .form-title {
            display: flex;
            align-items: center;
            gap: 0.8rem;
            margin-bottom: 1.5rem;
            color: var(--dark-bg);
        }
        .form-title i {
            color: var(--primary-red);
        }
        form label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #444;
        }
        form input,
        form textarea,
        form select {
            width: 100%;
            padding: 0.9rem;
            margin-bottom: 1.2rem;
            border: 1px solid #ddd;
            border-radius: 6px;
            font-size: 1rem;
            transition: border 0.3s ease;
        }
        form input:focus,
        form textarea:focus,
        form select:focus {
            border-color: var(--primary-red);
            outline: none;
            box-shadow: 0 0 0 3px rgba(225, 6, 0, 0.1);
        }
        form button {
            background-color: var(--primary-red);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 6px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background-color 0.3s ease, transform 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        form button:hover {
            background-color: #c10500;
            transform: translateY(-2px);
        }
        .rating-stars {
            display: flex;
            gap: 0.5rem;
            margin-bottom: 1.2rem;
        }
        .rating-stars input {
            display: none;
        }
        .rating-stars label {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.3s;
        }
        .rating-stars label:hover,
        .rating-stars input:checked ~ label {
            color: var(--accent-yellow);
        }
        .content-link {
            color: var(--primary-red);
            text-decoration: none;
            font-weight: 600;
            border-bottom: 2px dotted var(--primary-red);
            transition: all 0.3s ease;
        }
        .content-link:hover {
            background-color: rgba(225, 6, 0, 0.1);
            border-bottom: 2px solid var(--primary-red);
            padding: 0.1rem 0.3rem;
            border-radius: 3px;
        }
        footer {
            background-color: var(--dark-bg);
            color: var(--text-light);
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        .footer-section h3 {
            color: white;
            margin-bottom: 1.5rem;
            border-bottom: 2px solid var(--primary-red);
            padding-bottom: 0.5rem;
        }
        friend-link {
            display: block;
            margin-bottom: 1.5rem;
        }
        friend-link a {
            color: #aaa;
            text-decoration: none;
            display: block;
            padding: 0.5rem 0;
            border-bottom: 1px solid #333;
            transition: all 0.3s ease;
        }
        friend-link a:hover {
            color: var(--primary-red);
            padding-left: 0.5rem;
            border-bottom-color: var(--primary-red);
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid #444;
            color: #888;
            font-size: 0.9rem;
        }
        .update-time {
            color: var(--accent-yellow);
            font-weight: 600;
            margin-left: 0.5rem;
        }
        @media (max-width: 992px) {
            h1 {
                font-size: 2.6rem;
            }
            h2 {
                font-size: 2rem;
            }
            h3 {
                font-size: 1.6rem;
            }
            .main-nav {
                position: fixed;
                top: 80px;
                left: -100%;
                width: 100%;
                height: calc(100vh - 80px);
                background-color: var(--dark-bg);
                flex-direction: column;
                transition: left 0.4s ease;
                padding: 2rem;
                z-index: 999;
            }
            .main-nav.active {
                left: 0;
            }
            .nav-list {
                flex-direction: column;
                gap: 1rem;
                width: 100%;
            }
            .nav-list a {
                width: 100%;
                text-align: center;
                padding: 1rem;
            }
            .hamburger {
                display: block;
            }
            .form-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 768px) {
            article {
                padding: 0 1rem;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            .interactive-section {
                padding: 1.5rem;
            }
            .container {
                padding: 0 15px;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fade-in {
            animation: fadeIn 0.8s ease-out;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1.5rem;
            margin: 2.5rem 0;
        }
        .stat-box {
            background-color: #f0f0f0;
            padding: 1.5rem;
            border-radius: 8px;
            text-align: center;
            border-top: 4px solid var(--primary-red);
        }
        .stat-box h4 {
            margin-top: 0;
            color: var(--primary-red);
        }