* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.8;
            color: #333;
            background: linear-gradient(135deg, #f5f7fa 0%, #e4e8f0 100%);
            min-height: 100vh;
            padding-bottom: 60px;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: #2c3e50; text-decoration: none; transition: all 0.3s ease; }
        a:hover { color: #e74c3c; }
        .container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        .site-header {
            background: linear-gradient(to right, #1a1a2e, #16213e);
            color: white;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.5rem;
            font-weight: 900;
            letter-spacing: -1px;
            background: linear-gradient(45deg, #ff7e5f, #feb47b);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            text-shadow: 0 2px 4px rgba(0,0,0,0.2);
        }
        .my-logo:hover { transform: scale(1.05); }
        .main-nav ul {
            display: flex;
            list-style: none;
        }
        .main-nav li { margin-left: 2rem; }
        .main-nav a {
            color: #ecf0f1;
            font-weight: 600;
            padding: 0.5rem 0;
            border-bottom: 2px solid transparent;
        }
        .main-nav a:hover,
        .main-nav a.active { color: #ff7e5f; border-bottom-color: #ff7e5f; }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: #ecf0f1;
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            .main-nav {
                position: fixed;
                top: 70px;
                left: -100%;
                width: 100%;
                background: #16213e;
                transition: left 0.4s ease;
                padding: 2rem;
                box-shadow: 0 5px 15px rgba(0,0,0,0.2);
            }
            .main-nav.active { left: 0; }
            .main-nav ul { flex-direction: column; }
            .main-nav li { margin: 1rem 0; }
        }
        .breadcrumb {
            padding: 1rem 0;
            background: #edf2f7;
            border-bottom: 1px solid #cbd5e0;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin: 0 10px;
            color: #718096;
        }
        .breadcrumb a:hover { text-decoration: underline; }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            margin-top: 2rem;
        }
        @media (max-width: 992px) {
            .content-wrapper { grid-template-columns: 1fr; }
        }
        .main-article {
            background: white;
            border-radius: 12px;
            padding: 3rem;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
        }
        .article-header { margin-bottom: 2.5rem; }
        h1 {
            font-size: 3.2rem;
            color: #1a1a2e;
            line-height: 1.2;
            margin-bottom: 1rem;
            border-left: 6px solid #e74c3c;
            padding-left: 1.5rem;
        }
        .article-meta {
            color: #718096;
            font-size: 0.95rem;
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 1.5rem;
        }
        .update-time { color: #e74c3c; font-weight: 600; }
        .excerpt {
            font-size: 1.3rem;
            color: #4a5568;
            border-left: 4px solid #3498db;
            padding-left: 1.5rem;
            margin: 2rem 0;
            font-style: italic;
        }
        h2, h3, h4 {
            color: #2d3748;
            margin-top: 2.5rem;
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        h2 { font-size: 2.2rem; border-bottom: 2px solid #edf2f7; padding-bottom: 0.5rem; }
        h3 { font-size: 1.8rem; }
        h4 { font-size: 1.5rem; color: #4a5568; }
        p { margin-bottom: 1.8rem; text-align: justify; }
        .highlight {
            background: linear-gradient(120deg, #a1c4fd80 0%, #c2e9fb80 100%);
            padding: 1.5rem;
            border-radius: 8px;
            border-left: 5px solid #3498db;
            margin: 2rem 0;
        }
        .bold { font-weight: 900; color: #2c3e50; }
        .emoji { font-size: 1.2em; margin-right: 5px; }
        .feature-img {
            width: 100%;
            border-radius: 10px;
            margin: 2.5rem auto;
            box-shadow: 0 8px 25px rgba(0,0,0,0.15);
            border: 1px solid #e2e8f0;
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: #718096;
            margin-top: 0.5rem;
            font-size: 0.95rem;
        }
        .sidebar {
            background: white;
            border-radius: 12px;
            padding: 2rem;
            box-shadow: 0 8px 20px rgba(0,0,0,0.06);
            align-self: start;
            position: sticky;
            top: 100px;
        }
        .widget { margin-bottom: 2.5rem; }
        .widget-title {
            font-size: 1.3rem;
            color: #1a1a2e;
            border-bottom: 2px solid #ff7e5f;
            padding-bottom: 0.5rem;
            margin-bottom: 1.2rem;
            display: flex;
            align-items: center;
        }
        .widget-title i { margin-right: 10px; color: #e74c3c; }
        .search-form {
            display: flex;
            margin-bottom: 1rem;
        }
        .search-input {
            flex: 1;
            padding: 0.9rem;
            border: 2px solid #cbd5e0;
            border-radius: 8px 0 0 8px;
            font-size: 1rem;
            outline: none;
            transition: border-color 0.3s;
        }
        .search-input:focus { border-color: #3498db; }
        .search-btn {
            background: linear-gradient(to right, #3498db, #2c3e50);
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 8px 8px 0;
            cursor: pointer;
            font-size: 1rem;
            transition: opacity 0.3s;
        }
        .search-btn:hover { opacity: 0.9; }
        .related-links li {
            margin-bottom: 0.8rem;
            padding-left: 1.2rem;
            position: relative;
        }
        .related-links li::before {
            content: '▶';
            position: absolute;
            left: 0;
            color: #ff7e5f;
            font-size: 0.8rem;
        }
        .related-links a:hover { text-decoration: underline; }
        .rating-widget, .comment-widget {
            background: #f8f9fa;
            padding: 1.5rem;
            border-radius: 10px;
            border: 1px solid #e9ecef;
        }
        .stars {
            display: flex;
            gap: 5px;
            margin: 1rem 0;
        }
        .star {
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover,
        .star.active { color: #ffc107; }
        .comment-textarea {
            width: 100%;
            height: 120px;
            padding: 1rem;
            border: 2px solid #cbd5e0;
            border-radius: 8px;
            font-family: inherit;
            font-size: 1rem;
            margin-bottom: 1rem;
            resize: vertical;
            transition: border-color 0.3s;
        }
        .comment-textarea:focus { border-color: #3498db; outline: none; }
        .submit-btn {
            background: linear-gradient(to right, #2ecc71, #27ae60);
            color: white;
            border: none;
            padding: 0.9rem 1.8rem;
            border-radius: 8px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            transition: transform 0.3s, box-shadow 0.3s;
            display: block;
            width: 100%;
        }
        .submit-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(46, 204, 113, 0.3);
        }
        .site-footer {
            background: linear-gradient(to right, #1a1a2e, #16213e);
            color: #ecf0f1;
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
        }
        .footer-logo {
            font-size: 2.2rem;
            font-weight: 900;
            margin-bottom: 1rem;
            background: linear-gradient(45deg, #ff7e5f, #feb47b);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .footer-title {
            font-size: 1.3rem;
            margin-bottom: 1.5rem;
            color: #ff7e5f;
            position: relative;
            padding-bottom: 0.5rem;
        }
        .footer-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 40px;
            height: 3px;
            background: #3498db;
        }
        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin-top: 1rem;
        }
        friend-link {
            display: inline-block;
            background: rgba(255,255,255,0.1);
            padding: 0.6rem 1.2rem;
            border-radius: 20px;
            font-size: 0.9rem;
            transition: all 0.3s;
        }
        friend-link:hover {
            background: rgba(255,126,95,0.8);
            transform: translateY(-3px);
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid #2c3e50;
            color: #bdc3c7;
            font-size: 0.9rem;
        }
        .text-center { text-align: center; }
        .mb-2 { margin-bottom: 2rem; }
        .mt-2 { margin-top: 2rem; }
        .py-1 { padding-top: 1rem; padding-bottom: 1rem; }
        .hidden { display: none; }
        @media (max-width: 576px) {
            h1 { font-size: 2.5rem; }
            h2 { font-size: 1.9rem; }
            .main-article { padding: 1.5rem; }
        }