* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #0f1923;
            color: #ece8e1;
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            color: #ff4655;
            text-decoration: none;
            transition: color 0.3s ease, border-bottom 0.3s ease;
        }
        a:hover {
            color: #fff;
            border-bottom: 1px solid #ff4655;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 8px;
        }
        ul, ol {
            padding-left: 1.5rem;
            margin-bottom: 1.5rem;
        }
        li {
            margin-bottom: 0.5rem;
        }
        h1, h2, h3, h4 {
            color: #fff;
            font-weight: 700;
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        h1 {
            font-size: 3.2rem;
            background: linear-gradient(90deg, #ff4655, #0f1923);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-top: 1rem;
            border-left: 5px solid #ff4655;
            padding-left: 1rem;
        }
        h2 {
            font-size: 2.5rem;
            margin-top: 3rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #1a242f;
        }
        h3 {
            font-size: 1.8rem;
            margin-top: 2rem;
            color: #b8b8b8;
        }
        h4 {
            font-size: 1.4rem;
            margin-top: 1.5rem;
            color: #999;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
        }
        .lead {
            font-size: 1.3rem;
            font-weight: 300;
            color: #b8b8b8;
            margin-bottom: 2rem;
        }
        .highlight {
            background-color: rgba(255, 70, 85, 0.1);
            border-left: 4px solid #ff4655;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .note {
            background-color: rgba(0, 150, 255, 0.1);
            border-left: 4px solid #0096ff;
            padding: 1rem;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: #1a242f;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            color: #ff4655;
            text-transform: uppercase;
            letter-spacing: 2px;
            text-shadow: 0 0 10px rgba(255, 70, 85, 0.5);
        }
        .my-logo span {
            color: #ece8e1;
            font-weight: 300;
        }
        .my-logo:hover {
            color: #fff;
        }
        .desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .desktop-nav a {
            color: #b8b8b8;
            font-weight: 600;
            font-size: 1rem;
            padding: 0.5rem 0;
        }
        .desktop-nav a:hover {
            color: #ff4655;
            border-bottom: 2px solid #ff4655;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            gap: 4px;
        }
        .hamburger span {
            width: 25px;
            height: 3px;
            background-color: #ece8e1;
            border-radius: 2px;
            transition: 0.3s;
        }
        #nav-toggle {
            display: none;
        }
        .mobile-nav {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            background-color: #1a242f;
            padding: 1rem;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
        }
        .mobile-nav ul {
            list-style: none;
        }
        .mobile-nav li {
            margin-bottom: 1rem;
        }
        .mobile-nav a {
            display: block;
            padding: 0.75rem;
            color: #b8b8b8;
            border-bottom: 1px solid #2a3a4a;
        }
        .mobile-nav a:hover {
            color: #ff4655;
            background-color: rgba(255, 70, 85, 0.1);
        }
        #nav-toggle:checked ~ .mobile-nav {
            display: block;
        }
        .breadcrumb {
            padding: 1rem 0;
            font-size: 0.9rem;
            color: #999;
            margin-bottom: 2rem;
            border-bottom: 1px solid #2a3a4a;
        }
        .breadcrumb a {
            color: #999;
        }
        .breadcrumb a:hover {
            color: #ff4655;
        }
        .main-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            margin: 2rem 0;
        }
        @media (max-width: 992px) {
            .main-grid {
                grid-template-columns: 1fr;
            }
        }
        article {
            background-color: rgba(26, 36, 47, 0.7);
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: #999;
            font-size: 0.9rem;
            margin-bottom: 2rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid #2a3a4a;
        }
        .update-time {
            color: #ff4655;
            font-weight: 600;
        }
        .sidebar {
            background-color: rgba(26, 36, 47, 0.7);
            padding: 2rem;
            border-radius: 12px;
            height: fit-content;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
        }
        .sidebar h3 {
            font-size: 1.5rem;
            margin-top: 0;
            margin-bottom: 1.5rem;
            color: #fff;
        }
        .related-links ul {
            list-style: none;
            padding-left: 0;
        }
        .related-links li {
            margin-bottom: 0.8rem;
            padding-bottom: 0.8rem;
            border-bottom: 1px dashed #2a3a4a;
        }
        .related-links a {
            color: #b8b8b8;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .related-links a:hover {
            color: #ff4655;
        }
        .related-links i {
            color: #ff4655;
        }
        .search-box {
            margin-bottom: 2.5rem;
        }
        .search-box h3 {
            margin-bottom: 1rem;
        }
        .search-form {
            display: flex;
        }
        .search-form input {
            flex-grow: 1;
            padding: 0.9rem 1rem;
            background-color: #0f1923;
            border: 1px solid #2a3a4a;
            border-radius: 8px 0 0 8px;
            color: #ece8e1;
            font-size: 1rem;
            outline: none;
        }
        .search-form input:focus {
            border-color: #ff4655;
        }
        .search-form button {
            background-color: #ff4655;
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 8px 8px 0;
            cursor: pointer;
            font-weight: 600;
            transition: background-color 0.3s;
        }
        .search-form button:hover {
            background-color: #e03e4c;
        }
        .user-interaction {
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 2px solid #1a242f;
        }
        .user-interaction h2 {
            margin-top: 0;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            color: #b8b8b8;
            font-weight: 600;
        }
        .form-control {
            width: 100%;
            padding: 0.9rem 1rem;
            background-color: #0f1923;
            border: 1px solid #2a3a4a;
            border-radius: 8px;
            color: #ece8e1;
            font-size: 1rem;
            outline: none;
        }
        .form-control:focus {
            border-color: #ff4655;
        }
        textarea.form-control {
            min-height: 150px;
            resize: vertical;
        }
        .rating-stars {
            display: flex;
            gap: 5px;
            margin-bottom: 1rem;
        }
        .rating-stars input {
            display: none;
        }
        .rating-stars label {
            font-size: 1.8rem;
            color: #555;
            cursor: pointer;
            transition: color 0.2s;
        }
        .rating-stars label:hover,
        .rating-stars label:hover ~ label,
        .rating-stars input:checked ~ label {
            color: #ffc107;
        }
        .submit-btn {
            background-color: #ff4655;
            color: white;
            border: none;
            padding: 1rem 2.5rem;
            border-radius: 8px;
            cursor: pointer;
            font-weight: 700;
            font-size: 1.1rem;
            transition: background-color 0.3s, transform 0.2s;
        }
        .submit-btn:hover {
            background-color: #e03e4c;
            transform: translateY(-3px);
        }
        footer {
            background-color: #1a242f;
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
            border-top: 3px solid #ff4655;
        }
        .footer-content {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section {
            flex: 1;
            min-width: 250px;
        }
        .footer-section h4 {
            color: #fff;
            margin-bottom: 1.5rem;
            font-size: 1.3rem;
        }
        .footer-links ul {
            list-style: none;
            padding-left: 0;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        friend-link {
            display: block;
            margin-bottom: 1rem;
            font-size: 1.1rem;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #2a3a4a;
            color: #999;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            h1 { font-size: 2.5rem; }
            h2 { font-size: 2rem; }
            h3 { font-size: 1.6rem; }
            .desktop-nav { display: none; }
            .hamburger { display: flex; }
            .header-content { padding: 0 15px; }
            article, .sidebar { padding: 1.5rem; }
            .main-grid { gap: 2rem; }
        }