* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
            color: #333;
            line-height: 1.7;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: all 0.3s ease;
        }
        ul, ol { list-style-position: inside; }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }
        .site-header {
            background: linear-gradient(90deg, #1a237e 0%, #283593 50%, #3949ab 100%);
            color: #fff;
            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: 2.2rem;
            font-weight: 900;
            background: linear-gradient(45deg, #ffeb3b, #ff9800);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-shadow: 0 2px 4px rgba(0,0,0,0.2);
            letter-spacing: 1px;
        }
        .my-logo:hover {
            transform: scale(1.05);
        }
        .main-nav ul {
            display: flex;
            gap: 1.8rem;
        }
        .main-nav a {
            font-weight: 600;
            font-size: 1.05rem;
            padding: 0.5rem 0;
            position: relative;
        }
        .main-nav a:hover {
            color: #ffeb3b;
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: #ffeb3b;
            transition: width 0.3s ease;
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.5rem;
        }
        .mobile-nav {
            display: none;
            background: #283593;
            padding: 1rem;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            box-shadow: 0 5px 10px rgba(0,0,0,0.2);
        }
        .mobile-nav.active { display: block; }
        .mobile-nav ul { flex-direction: column; gap: 0; }
        .mobile-nav li { border-bottom: 1px solid #3949ab; }
        .mobile-nav a { display: block; padding: 0.8rem 1rem; }
        .breadcrumb {
            background: #e8eaf6;
            padding: 0.8rem 0;
            font-size: 0.9rem;
            margin-bottom: 2rem;
        }
        .breadcrumb a { color: #3949ab; }
        .breadcrumb a:hover { text-decoration: underline; }
        .breadcrumb span { color: #666; }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            padding: 2rem 0;
            flex-grow: 1;
        }
        @media (max-width: 992px) {
            .content-wrapper { grid-template-columns: 1fr; }
        }
        .main-article {
            background: white;
            padding: 2.5rem;
            border-radius: 15px;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-bottom: 2px dashed #e0e0e0;
            padding-bottom: 1rem;
            margin-bottom: 2rem;
            font-size: 0.95rem;
            color: #666;
        }
        .update-time { color: #d32f2f; font-weight: 600; }
        h1 {
            font-size: 2.8rem;
            color: #1a237e;
            margin-bottom: 1.5rem;
            line-height: 1.2;
        }
        h2 {
            font-size: 1.9rem;
            color: #283593;
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #ffeb3b;
        }
        h3 {
            font-size: 1.5rem;
            color: #3949ab;
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.2rem;
            color: #5c6bc0;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
        }
        .intro {
            font-size: 1.2rem;
            color: #444;
            background: #f9fbe7;
            padding: 1.5rem;
            border-left: 5px solid #ffeb3b;
            border-radius: 0 8px 8px 0;
            margin-bottom: 2rem;
        }
        .highlight {
            background: linear-gradient(120deg, #e1f5fe 0%, #b3e5fc 100%);
            padding: 1.5rem;
            border-radius: 10px;
            margin: 1.5rem 0;
            border-left: 4px solid #0288d1;
        }
        em { font-style: italic; }
        strong {
            color: #1a237e;
            font-weight: 700;
        }
        .feature-img {
            margin: 2rem auto;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 8px 16px rgba(0,0,0,0.1);
            max-width: 800px;
        }
        .feature-img figcaption {
            text-align: center;
            font-style: italic;
            padding: 0.8rem;
            background: #f5f5f5;
            color: #666;
        }
        .link-list {
            background: #f3e5f5;
            padding: 1.5rem;
            border-radius: 10px;
            margin: 1.5rem 0;
        }
        .link-list li { margin-bottom: 0.5rem; }
        .link-list a {
            color: #7b1fa2;
            font-weight: 600;
        }
        .link-list a:hover {
            color: #4a148c;
            text-decoration: underline;
        }
        .player-quote {
            font-style: italic;
            padding: 1.5rem 2rem;
            background: #e8f5e9;
            border-radius: 10px;
            margin: 2rem 0;
            position: relative;
        }
        .player-quote::before {
            content: '\201C';
            font-size: 4rem;
            color: #388e3c;
            position: absolute;
            top: -10px;
            left: 10px;
            opacity: 0.5;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .widget {
            background: white;
            padding: 1.8rem;
            border-radius: 12px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.05);
        }
        .widget h3 {
            font-size: 1.3rem;
            color: #1a237e;
            margin-top: 0;
            padding-bottom: 0.5rem;
            border-bottom: 1px solid #eee;
        }
        .search-form {
            display: flex;
        }
        .search-input {
            flex-grow: 1;
            padding: 0.9rem 1rem;
            border: 2px solid #3949ab;
            border-right: none;
            border-radius: 8px 0 0 8px;
            font-size: 1rem;
        }
        .search-btn {
            background: #3949ab;
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 8px 8px 0;
            cursor: pointer;
            font-size: 1.1rem;
            transition: background 0.3s;
        }
        .search-btn:hover { background: #283593; }
        .rating-widget .stars {
            display: flex;
            justify-content: center;
            gap: 0.5rem;
            margin: 1rem 0;
            font-size: 2rem;
            color: #ffc107;
        }
        .rating-widget .stars i { cursor: pointer; }
        .comment-form textarea {
            width: 100%;
            padding: 1rem;
            border: 1px solid #ccc;
            border-radius: 8px;
            font-size: 1rem;
            margin-bottom: 1rem;
            resize: vertical;
            min-height: 120px;
        }
        .submit-btn {
            background: linear-gradient(90deg, #388e3c, #4caf50);
            color: white;
            border: none;
            padding: 0.9rem 2rem;
            border-radius: 8px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            width: 100%;
            transition: transform 0.2s;
        }
        .submit-btn:hover { transform: translateY(-2px); }
        .site-footer {
            background: #1a237e;
            color: #e8eaf6;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-col h4 {
            color: #ffeb3b;
            margin-bottom: 1.2rem;
            font-size: 1.3rem;
        }
        .footer-col ul li { margin-bottom: 0.7rem; }
        .footer-col a:hover { color: #ffeb3b; }
        friend-link {
            display: block;
            background: #283593;
            padding: 1.5rem;
            border-radius: 8px;
            margin-top: 1rem;
        }
        friend-link a {
            font-weight: 700;
            color: #ffcc80;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #3949ab;
            font-size: 0.9rem;
            color: #b0bec5;
        }
        @media (max-width: 768px) {
            .main-nav ul { display: none; }
            .hamburger { display: block; }
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.7rem; }
            .main-article { padding: 1.5rem; }
            .content-wrapper { gap: 1.5rem; }
            .header-inner, .footer-content { flex-direction: column; text-align: center; }
        }