:root {
            --primary-color: #FF4655;
            --secondary-color: #1E90FF;
            --accent-color: #FFD700;
            --dark-bg: #0F1923;
            --light-bg: #F8F9FA;
            --text-dark: #2A2A2A;
            --text-light: #EAEAEA;
            --card-bg: #FFFFFF;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --border-radius: 12px;
            --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
            --max-width: 1200px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--text-dark);
            background-color: var(--light-bg);
            overflow-x: hidden;
        }
        a {
            color: var(--secondary-color);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-color);
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--border-radius);
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, var(--dark-bg) 0%, #2A3A4E 100%);
            color: var(--text-light);
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 10px rgba(0,0,0,0.2);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-family: 'Arial Black', sans-serif;
            font-size: 2.2rem;
            font-weight: 900;
            background: linear-gradient(to right, var(--primary-color), var(--accent-color));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .my-logo:hover {
            transform: scale(1.03);
            text-decoration: none;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: var(--text-light);
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
        }
        .main-nav a:hover {
            color: var(--accent-color);
            text-decoration: none;
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-color);
            transition: width 0.3s ease;
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: var(--text-light);
            cursor: pointer;
        }
        .breadcrumb {
            background-color: var(--card-bg);
            padding: 1rem 0;
            border-bottom: 1px solid #eee;
            font-size: 0.9rem;
        }
        .breadcrumb ul {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin: 0 10px;
            color: #999;
        }
        .search-container {
            background: linear-gradient(to right, #f8f9fa, #e9ecef);
            padding: 2.5rem 0;
            text-align: center;
            margin-bottom: 2rem;
            border-radius: var(--border-radius);
        }
        .search-form {
            max-width: 600px;
            margin: 0 auto;
            display: flex;
            box-shadow: var(--shadow);
            border-radius: 50px;
            overflow: hidden;
        }
        .search-form input {
            flex-grow: 1;
            padding: 1rem 1.5rem;
            border: none;
            font-size: 1rem;
            outline: none;
        }
        .search-form button {
            background: var(--primary-color);
            color: white;
            border: none;
            padding: 0 2rem;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        .search-form button:hover {
            background: #e03a47;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            margin: 2.5rem 0;
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
        }
        .main-article {
            background: var(--card-bg);
            padding: 2.5rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        h1 {
            font-size: 2.8rem;
            color: var(--dark-bg);
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 3px solid var(--primary-color);
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 2rem;
            color: var(--dark-bg);
            margin: 2.5rem 0 1.2rem;
            padding-left: 10px;
            border-left: 5px solid var(--secondary-color);
        }
        h3 {
            font-size: 1.5rem;
            color: #444;
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.2rem;
            color: #666;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            hyphens: auto;
        }
        .lead {
            font-size: 1.25rem;
            font-weight: 500;
            color: #555;
            background: #f0f8ff;
            padding: 1.5rem;
            border-radius: var(--border-radius);
            border-left: 4px solid var(--secondary-color);
            margin-bottom: 2.5rem;
        }
        .highlight {
            background: linear-gradient(120deg, var(--accent-color) 0%, var(--accent-color) 100%);
            background-repeat: no-repeat;
            background-size: 100% 0.4em;
            background-position: 0 88%;
            font-weight: 700;
            padding: 0.1em 0;
        }
        .emphasis {
            font-weight: 700;
            color: var(--primary-color);
        }
        .info-box {
            background: #e7f3ff;
            border-left: 4px solid var(--secondary-color);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .quote {
            font-style: italic;
            font-size: 1.2rem;
            color: #555;
            border-left: 4px solid var(--primary-color);
            padding-left: 1.5rem;
            margin: 2rem 0 2rem 1.5rem;
        }
        .author {
            display: block;
            text-align: right;
            font-weight: 600;
            color: #333;
            margin-top: 0.5rem;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-widget {
            background: var(--card-bg);
            padding: 1.5rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            color: var(--dark-bg);
            margin-top: 0;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #eee;
        }
        .link-list {
            list-style: none;
        }
        .link-list li {
            margin-bottom: 0.8rem;
            padding-bottom: 0.8rem;
            border-bottom: 1px dashed #eee;
        }
        .link-list a {
            display: block;
            padding: 0.3rem 0;
        }
        .link-list a:hover {
            padding-left: 8px;
        }
        .image-container {
            margin: 2.5rem 0;
            text-align: center;
        }
        .image-container img {
            box-shadow: 0 8px 20px rgba(0,0,0,0.15);
            transition: var(--transition);
        }
        .image-container img:hover {
            transform: translateY(-5px);
            box-shadow: 0 12px 25px rgba(0,0,0,0.2);
        }
        .image-caption {
            font-size: 0.9rem;
            color: #666;
            margin-top: 0.8rem;
            font-style: italic;
        }
        .interaction-forms {
            background: var(--card-bg);
            padding: 2.5rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            margin-top: 2.5rem;
        }
        .form-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-top: 1.5rem;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #444;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 1px solid #ddd;
            border-radius: 8px;
            font-family: inherit;
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            outline: none;
            border-color: var(--secondary-color);
            box-shadow: 0 0 0 3px rgba(30, 144, 255, 0.1);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 5px;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .star-rating input:checked ~ label,
        .star-rating label:hover,
        .star-rating label:hover ~ label {
            color: var(--accent-color);
        }
        .submit-btn {
            background: linear-gradient(to right, var(--primary-color), #FF6B7F);
            color: white;
            border: none;
            padding: 1rem 2.5rem;
            font-size: 1rem;
            font-weight: 600;
            border-radius: 50px;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 4px 10px rgba(255, 70, 85, 0.3);
        }
        .submit-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 15px rgba(255, 70, 85, 0.4);
        }
        .site-footer {
            background: var(--dark-bg);
            color: var(--text-light);
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        .footer-section h3 {
            color: var(--accent-color);
            margin-bottom: 1.2rem;
            font-size: 1.3rem;
        }
        friend-link {
            display: block;
            margin-bottom: 0.8rem;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #2A3A4E;
            font-size: 0.9rem;
            color: #aaa;
        }
        .update-time {
            background: #fff8e1;
            padding: 0.5rem 1rem;
            border-radius: 20px;
            display: inline-block;
            font-size: 0.9rem;
            margin-top: 1rem;
            color: #856404;
            border: 1px solid #ffeaa7;
        }
        @media (max-width: 768px) {
            html {
                font-size: 15px;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            .header-content {
                flex-wrap: wrap;
            }
            .main-nav {
                display: none;
                width: 100%;
                order: 3;
                margin-top: 1rem;
            }
            .main-nav.active {
                display: block;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 0;
            }
            .main-nav li {
                border-bottom: 1px solid #2A3A4E;
            }
            .main-nav a {
                display: block;
                padding: 1rem 0;
            }
            .hamburger {
                display: block;
            }
            .content-wrapper {
                gap: 1.5rem;
            }
            .main-article,
            .interaction-forms {
                padding: 1.5rem;
            }
            .form-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 480px) {
            .search-form {
                flex-direction: column;
                border-radius: var(--border-radius);
            }
            .search-form input,
            .search-form button {
                width: 100%;
                border-radius: 0;
            }
            .search-form button {
                padding: 1rem;
            }
        }
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .main-article,
        .sidebar-widget,
        .interaction-forms {
            animation: fadeInUp 0.6s ease-out;
        }