* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-color: #FF6B35;
            --secondary-color: #1A1A2E;
            --accent-color: #00B4D8;
            --text-color: #333333;
            --light-bg: #F8F9FA;
            --dark-bg: #1A1A2E;
            --border-color: #E0E0E0;
            --success-color: #2E7D32;
            --warning-color: #F9A826;
            --font-primary: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --transition: all 0.3s ease;
        }
        body {
            font-family: var(--font-primary);
            line-height: 1.7;
            color: var(--text-color);
            background-color: var(--light-bg);
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: var(--dark-bg);
            color: white;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .logo a {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary-color);
            text-decoration: none;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .logo span {
            color: white;
        }
        .nav-desktop {
            display: flex;
            gap: 30px;
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
        }
        .nav-desktop a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            font-size: 1rem;
            padding: 8px 0;
            position: relative;
            transition: var(--transition);
        }
        .nav-desktop a:hover {
            color: var(--primary-color);
        }
        .nav-desktop a:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--primary-color);
            transition: var(--transition);
        }
        .nav-desktop a:hover:after {
            width: 100%;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            width: 30px;
            height: 25px;
            justify-content: space-between;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: flex;
            }
        }
        .hamburger span {
            height: 4px;
            width: 100%;
            background-color: white;
            border-radius: 2px;
            transition: var(--transition);
        }
        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(8px, 8px);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(7px, -7px);
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background-color: var(--dark-bg);
            padding: 20px;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
            z-index: 999;
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile a {
            color: white;
            text-decoration: none;
            padding: 15px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            font-weight: 600;
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .nav-mobile a:hover {
            color: var(--primary-color);
            padding-left: 10px;
        }
        .breadcrumb {
            background-color: rgba(255, 255, 255, 0.05);
            padding: 12px 0;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #CCCCCC;
            text-decoration: none;
            transition: var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--primary-color);
        }
        .breadcrumb span {
            color: #AAAAAA;
            margin: 0 8px;
        }
        .breadcrumb .current {
            color: white;
            font-weight: 600;
        }
        main {
            padding: 40px 0;
            background-color: white;
            min-height: 100vh;
        }
        .article-header {
            margin-bottom: 40px;
            text-align: center;
            padding-bottom: 30px;
            border-bottom: 1px solid var(--border-color);
        }
        h1 {
            font-size: 2.5rem;
            color: var(--secondary-color);
            margin-bottom: 20px;
            line-height: 1.3;
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2rem;
            }
        }
        .article-meta {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 20px;
            color: #666;
            font-size: 0.95rem;
            flex-wrap: wrap;
        }
        .meta-item {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .meta-item i {
            color: var(--primary-color);
        }
        .search-container {
            background-color: var(--light-bg);
            padding: 30px;
            border-radius: 12px;
            margin: 30px 0;
            box-shadow: var(--shadow);
        }
        .search-container h2 {
            margin-bottom: 20px;
            color: var(--secondary-color);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 0 auto;
        }
        .search-input {
            flex: 1;
            padding: 15px 20px;
            border: 2px solid var(--border-color);
            border-radius: 8px 0 0 8px;
            font-size: 1rem;
            transition: var(--transition);
        }
        .search-input:focus {
            outline: none;
            border-color: var(--accent-color);
        }
        .search-btn {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 0 25px;
            border-radius: 0 8px 8px 0;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
        }
        .search-btn:hover {
            background-color: #E55A2B;
        }
        .article-content {
            font-size: 1.1rem;
            line-height: 1.8;
            max-width: 900px;
            margin: 0 auto;
        }
        .article-content p {
            margin-bottom: 25px;
            text-align: justify;
        }
        .article-content h2 {
            color: var(--secondary-color);
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--primary-color);
            font-size: 1.8rem;
        }
        .article-content h3 {
            color: var(--secondary-color);
            margin: 30px 0 15px;
            font-size: 1.5rem;
        }
        .article-content ul, .article-content ol {
            margin-bottom: 25px;
            padding-left: 30px;
        }
        .article-content li {
            margin-bottom: 10px;
        }
        .highlight {
            background-color: rgba(255, 107, 53, 0.1);
            padding: 25px;
            border-left: 4px solid var(--primary-color);
            border-radius: 0 8px 8px 0;
            margin: 30px 0;
        }
        .highlight p {
            margin-bottom: 0;
        }
        .bold-text {
            font-weight: 700;
            color: var(--secondary-color);
        }
        .tier-list-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 25px;
            margin: 40px 0;
        }
        .tier-category {
            background-color: var(--light-bg);
            border-radius: 12px;
            padding: 25px;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .tier-category:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
        }
        .tier-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 20px;
            padding-bottom: 15px;
            border-bottom: 1px solid var(--border-color);
        }
        .tier-title {
            font-size: 1.4rem;
            font-weight: 700;
        }
        .tier-s {
            color: #FF4757;
        }
        .tier-a {
            color: #FF6B35;
        }
        .tier-b {
            color: #FFA502;
        }
        .tier-c {
            color: #00B4D8;
        }
        .tier-d {
            color: #2ED573;
        }
        .hero-list {
            list-style-type: none;
            padding-left: 0;
        }
        .hero-list li {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px dashed var(--border-color);
        }
        .hero-list li:last-child {
            border-bottom: none;
        }
        .hero-icon {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            box-shadow: 0 3px 8px rgba(0, 0, 0, 0.1);
        }
        .article-image {
            margin: 40px 0;
            text-align: center;
        }
        .article-image img {
            max-width: 100%;
            height: auto;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
        }
        .image-caption {
            margin-top: 15px;
            font-style: italic;
            color: #666;
            font-size: 0.95rem;
        }
        .user-interaction {
            background-color: var(--light-bg);
            border-radius: 12px;
            padding: 30px;
            margin: 50px 0;
            box-shadow: var(--shadow);
        }
        .interaction-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 30px;
            flex-wrap: wrap;
            gap: 20px;
        }
        .rating-container {
            display: flex;
            align-items: center;
            gap: 15px;
        }
        .stars {
            display: flex;
            gap: 5px;
        }
        .star {
            color: #DDDDDD;
            font-size: 1.5rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .star.active {
            color: var(--warning-color);
        }
        .avg-rating {
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--secondary-color);
        }
        .comment-form-container {
            background-color: white;
            padding: 25px;
            border-radius: 8px;
            margin-bottom: 30px;
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: var(--secondary-color);
        }
        .form-input {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-input:focus {
            outline: none;
            border-color: var(--accent-color);
        }
        textarea.form-input {
            min-height: 150px;
            resize: vertical;
            font-family: var(--font-primary);
        }
        .submit-btn {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 14px 30px;
            border-radius: 6px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .submit-btn:hover {
            background-color: #E55A2B;
        }
        .comments-container {
            margin-top: 40px;
        }
        .comment {
            background-color: white;
            padding: 20px;
            border-radius: 8px;
            margin-bottom: 20px;
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 15px;
            flex-wrap: wrap;
            gap: 10px;
        }
        .comment-author {
            font-weight: 700;
            color: var(--secondary-color);
        }
        .comment-date {
            color: #888;
            font-size: 0.9rem;
        }
        .web-links {
            background-color: var(--dark-bg);
            padding: 40px 0;
        }
        .web-link-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 20px;
        }
        .web-link {
            background-color: rgba(255, 255, 255, 0.05);
            padding: 20px;
            border-radius: 8px;
            transition: var(--transition);
        }
        .web-link:hover {
            background-color: rgba(255, 255, 255, 0.1);
            transform: translateY(-3px);
        }
        .web-link a {
            color: white;
            text-decoration: none;
            font-size: 1rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .web-link a:hover {
            color: var(--primary-color);
        }
        .web-link i {
            color: var(--primary-color);
        }
        footer {
            background-color: #0F0F1A;
            color: #AAAAAA;
            padding: 40px 0 20px;
        }
        .footer-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 30px;
            padding-bottom: 30px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .footer-logo a {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary-color);
            text-decoration: none;
        }
        .footer-links {
            display: flex;
            gap: 25px;
        }
        .footer-links a {
            color: #CCCCCC;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--primary-color);
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            font-size: 0.9rem;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .text-center {
            text-align: center;
        }
        .mb-20 {
            margin-bottom: 20px;
        }
        .mt-40 {
            margin-top: 40px;
        }
        @media (max-width: 768px) {
            .tier-list-container {
                grid-template-columns: 1fr;
            }
            .interaction-header {
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-content {
                flex-direction: column;
                text-align: center;
            }
            .footer-links {
                flex-direction: column;
                gap: 15px;
            }
        }