* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
            line-height: 1.6;
            color: #333;
            background: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
            min-height: 100vh;
        }
        img { max-width: 100%; height: auto; display: block; }
        h1 { font-size: 2.8rem; color: #1a365d; margin-bottom: 1.5rem; line-height: 1.2; }
        h2 { font-size: 2.2rem; color: #2d3748; margin: 2.5rem 0 1.2rem; border-left: 5px solid #e53e3e; padding-left: 1rem; }
        h3 { font-size: 1.8rem; color: #4a5568; margin: 2rem 0 1rem; }
        h4 { font-size: 1.4rem; color: #718096; margin: 1.5rem 0 0.8rem; }
        p { margin-bottom: 1.5rem; font-size: 1.125rem; }
        .lead { font-size: 1.3rem; color: #4a5568; font-weight: 500; }
        strong { color: #2d3748; }
        em { color: #e53e3e; font-style: italic; }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .main-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            margin-top: 2rem;
        }
        @media (max-width: 992px) {
            .main-grid { grid-template-columns: 1fr; }
        }
        .site-header {
            background: linear-gradient(90deg, #1a365d 0%, #2d3748 100%);
            color: white;
            padding: 1rem 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 800;
            color: white;
            text-decoration: none;
            background: linear-gradient(90deg, #e53e3e, #f6ad55);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .my-logo:hover {
            opacity: 0.9;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: #cbd5e0;
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
            transition: color 0.3s;
        }
        .main-nav a:hover,
        .main-nav a.active {
            color: white;
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: #e53e3e;
            transition: width 0.3s;
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            gap: 4px;
        }
        .hamburger span {
            width: 25px;
            height: 3px;
            background: white;
            border-radius: 2px;
            transition: 0.3s;
        }
        @media (max-width: 768px) {
            .hamburger { display: flex; }
            .main-nav ul {
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #2d3748;
                padding: 1rem;
                clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
                transition: clip-path 0.4s ease;
            }
            .main-nav.active ul {
                clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
            }
        }
        .breadcrumb {
            padding: 1rem 0;
            background: #edf2f7;
            margin-bottom: 2rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            gap: 0.5rem;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '/';
            margin-left: 0.5rem;
            color: #a0aec0;
        }
        .breadcrumb a {
            color: #4a5568;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            color: #e53e3e;
        }
        .search-box {
            background: white;
            padding: 2rem;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0,0,0,0.08);
            margin: 2rem 0;
        }
        .search-form {
            display: flex;
            gap: 0.5rem;
        }
        .search-input {
            flex: 1;
            padding: 1rem;
            border: 2px solid #e2e8f0;
            border-radius: 8px;
            font-size: 1rem;
            transition: border-color 0.3s;
        }
        .search-input:focus {
            outline: none;
            border-color: #e53e3e;
        }
        .search-btn {
            padding: 0 1.5rem;
            background: linear-gradient(90deg, #e53e3e, #dd6b20);
            color: white;
            border: none;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: transform 0.2s, opacity 0.2s;
        }
        .search-btn:hover {
            opacity: 0.95;
            transform: translateY(-2px);
        }
        .article-content {
            background: white;
            padding: 2.5rem;
            border-radius: 16px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.06);
        }
        .update-time {
            color: #718096;
            font-style: italic;
            margin-bottom: 2rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid #e2e8f0;
        }
        .featured-img {
            width: 100%;
            border-radius: 12px;
            margin: 2rem 0;
            box-shadow: 0 8px 25px rgba(0,0,0,0.1);
            transition: transform 0.3s;
        }
        .featured-img:hover {
            transform: scale(1.01);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .widget {
            background: white;
            padding: 1.5rem;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0,0,0,0.06);
        }
        .widget h3 {
            color: #1a365d;
            margin-top: 0;
            border-bottom: 2px solid #e53e3e;
            padding-bottom: 0.5rem;
        }
        .comment-form,
        .rating-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .form-group {
            display: flex;
            flex-direction: column;
        }
        .form-label {
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #4a5568;
        }
        .form-input,
        .form-textarea {
            padding: 0.75rem;
            border: 2px solid #e2e8f0;
            border-radius: 6px;
            font-family: inherit;
            font-size: 1rem;
            transition: border-color 0.3s;
        }
        .form-input:focus,
        .form-textarea:focus {
            outline: none;
            border-color: #e53e3e;
        }
        .form-textarea {
            min-height: 120px;
            resize: vertical;
        }
        .stars {
            display: flex;
            gap: 0.5rem;
            font-size: 1.5rem;
            color: #cbd5e0;
            cursor: pointer;
        }
        .stars .star:hover,
        .stars .star.active {
            color: #f6ad55;
        }
        .submit-btn {
            align-self: flex-start;
            padding: 0.75rem 1.5rem;
            background: linear-gradient(90deg, #1a365d, #2d3748);
            color: white;
            border: none;
            border-radius: 6px;
            font-weight: 600;
            cursor: pointer;
            transition: opacity 0.3s;
        }
        .submit-btn:hover {
            opacity: 0.9;
        }
        .internal-link {
            color: #e53e3e;
            text-decoration: none;
            font-weight: 600;
            border-bottom: 2px dotted transparent;
            transition: border-color 0.3s;
        }
        .internal-link:hover {
            border-bottom-color: #e53e3e;
        }
        .site-footer {
            background: #1a365d;
            color: #cbd5e0;
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-links a {
            color: #cbd5e0;
            text-decoration: none;
            display: block;
            margin-bottom: 0.5rem;
            transition: color 0.3s;
        }
        .footer-links a:hover {
            color: white;
        }
        friend-link {
            display: block;
            color: #f6ad55;
            font-weight: 600;
            margin: 0.5rem 0;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #2d3748;
            font-size: 0.9rem;
            color: #a0aec0;
        }
        .highlight-box {
            background: linear-gradient(135deg, #fff5f5, #fed7d7);
            border-left: 5px solid #e53e3e;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .emoji { font-size: 1.2em; margin-right: 0.3rem; }
        @media (max-width: 576px) {
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            .article-content { padding: 1.5rem; }
        }