* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #e0e0e0;
            background: linear-gradient(135deg, #0a0f1a 0%, #1a1f2e 100%);
            background-attachment: fixed;
            min-height: 100vh;
        }
        a { color: #4dabf7; text-decoration: none; transition: all 0.3s ease; }
        a:hover { color: #74c0fc; text-shadow: 0 0 8px rgba(116, 192, 252, 0.5); }
        img { max-width: 100%; height: auto; display: block; }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: rgba(10, 15, 26, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid #2d3748;
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 15px 0;
        }
        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-family: 'Arial Black', sans-serif;
            font-size: 2.2rem;
            background: linear-gradient(90deg, #ff6b6b, #4ecdc4, #45b7d1);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-decoration: none;
            letter-spacing: 1px;
        }
        .my-logo:hover { transform: scale(1.03); }
        .nav-desktop {
            display: flex;
            gap: 30px;
        }
        @media (max-width: 768px) {
            .nav-desktop { display: none; }
        }
        .nav-desktop a {
            color: #cbd5e0;
            font-weight: 500;
            padding: 8px 0;
            border-bottom: 2px solid transparent;
        }
        .nav-desktop a:hover { color: #fff; border-bottom-color: #4dabf7; }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #cbd5e0;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 5px;
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
        }
        .nav-mobile {
            position: fixed;
            top: 70px;
            left: 0;
            width: 100%;
            background: rgba(10, 15, 26, 0.98);
            border-top: 1px solid #2d3748;
            flex-direction: column;
            padding: 20px;
            gap: 15px;
            display: none;
            z-index: 999;
        }
        .nav-mobile.active { display: flex; }
        .nav-mobile a {
            color: #cbd5e0;
            padding: 12px;
            border-left: 3px solid transparent;
            font-size: 1.1rem;
        }
        .nav-mobile a:hover { color: #fff; border-left-color: #4dabf7; background: rgba(255,255,255,0.05); }
        .breadcrumb {
            padding: 15px 0;
            color: #94a3b8;
            font-size: 0.9rem;
            border-bottom: 1px solid #2d3748;
            margin-bottom: 30px;
        }
        .breadcrumb a { color: #94a3b8; }
        .breadcrumb a:hover { color: #fff; }
        main { padding: 30px 0; }
        article { background: rgba(26, 32, 44, 0.7); border-radius: 12px; padding: 40px; margin-bottom: 40px; box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3); }
        h1 { color: #fff; font-size: 3.2rem; margin-bottom: 25px; line-height: 1.2; text-shadow: 0 2px 10px rgba(0,0,0,0.5); }
        h2 { color: #74c0fc; font-size: 2.2rem; margin: 40px 0 20px; padding-bottom: 10px; border-bottom: 2px solid #374151; }
        h3 { color: #a5d8ff; font-size: 1.7rem; margin: 30px 0 15px; }
        h4 { color: #d0ebff; font-size: 1.3rem; margin: 25px 0 10px; }
        p { margin-bottom: 20px; font-size: 1.1rem; }
        strong { color: #ffd43b; font-weight: 600; }
        em { color: #b197fc; }
        blockquote {
            border-left: 4px solid #4dabf7;
            padding-left: 20px;
            margin: 25px 0;
            color: #b0bec5;
            font-style: italic;
            background: rgba(77, 171, 247, 0.08);
            padding: 20px;
            border-radius: 0 8px 8px 0;
        }
        .highlight-box {
            background: linear-gradient(90deg, rgba(255,107,107,0.1), rgba(78,205,196,0.1));
            border-left: 5px solid #ff6b6b;
            padding: 25px;
            border-radius: 8px;
            margin: 30px 0;
        }
        .content-img {
            width: 100%;
            max-width: 800px;
            margin: 30px auto;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.4);
            border: 1px solid #4a5568;
        }
        .caption { text-align: center; font-size: 0.9rem; color: #94a3b8; margin-top: 10px; }
        .interactive-section {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
            margin: 50px 0;
        }
        .search-box, .comment-box, .rating-box {
            background: rgba(30, 41, 59, 0.8);
            padding: 25px;
            border-radius: 10px;
            border: 1px solid #475569;
        }
        .search-box h3, .comment-box h3, .rating-box h3 { margin-top: 0; }
        .form-group { margin-bottom: 20px; }
        label { display: block; margin-bottom: 8px; color: #cbd5e0; }
        input, textarea, select {
            width: 100%;
            padding: 12px 15px;
            background: rgba(15, 23, 42, 0.8);
            border: 1px solid #475569;
            border-radius: 6px;
            color: #fff;
            font-size: 1rem;
        }
        input:focus, textarea:focus, select:focus { outline: none; border-color: #4dabf7; box-shadow: 0 0 0 3px rgba(77, 171, 247, 0.3); }
        button {
            background: linear-gradient(90deg, #4dabf7, #3b82f6);
            color: white;
            border: none;
            padding: 14px 28px;
            border-radius: 6px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            transition: all 0.3s;
        }
        button:hover { background: linear-gradient(90deg, #3b82f6, #2563eb); transform: translateY(-3px); box-shadow: 0 7px 14px rgba(37, 99, 235, 0.3); }
        .stars { display: flex; gap: 10px; margin: 15px 0; }
        .star { font-size: 2rem; color: #4a5568; cursor: pointer; transition: color 0.2s; }
        .star:hover, .star.active { color: #ffd43b; }
        .related-links {
            background: rgba(30, 41, 59, 0.6);
            padding: 25px;
            border-radius: 10px;
            margin: 40px 0;
            border-left: 5px solid #a5d8ff;
        }
        .related-links h3 { margin-top: 0; }
        .links-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 15px;
            margin-top: 20px;
        }
        .links-grid a {
            display: block;
            padding: 12px 15px;
            background: rgba(255,255,255,0.05);
            border-radius: 6px;
            border: 1px solid transparent;
        }
        .links-grid a:hover { background: rgba(77, 171, 247, 0.15); border-color: #4dabf7; }
        footer {
            background: rgba(10, 15, 26, 0.95);
            border-top: 1px solid #2d3748;
            padding: 50px 0 30px;
            margin-top: 60px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-section h4 { color: #74c0fc; margin-bottom: 20px; }
        .footer-section p { color: #94a3b8; }
        friend-link {
            display: inline-block;
            background: rgba(255,255,255,0.05);
            padding: 10px 20px;
            margin: 5px 10px 5px 0;
            border-radius: 6px;
            border: 1px solid #4a5568;
            color: #cbd5e0;
        }
        friend-link a { color: #cbd5e0; }
        friend-link:hover { background: rgba(77, 171, 247, 0.15); border-color: #4dabf7; }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid #374151;
            color: #94a3b8;
            font-size: 0.9rem;
        }
        .text-center { text-align: center; }
        .mt-4 { margin-top: 40px; }
        .mb-4 { margin-bottom: 40px; }
        .updated-time { color: #94a3b8; font-size: 0.9rem; margin-top: 40px; padding-top: 20px; border-top: 1px dashed #4a5568; }