* { 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: #0a0a12;
            background-image: radial-gradient(circle at 15% 50%, rgba(28, 58, 112, 0.1) 0%, transparent 20%), radial-gradient(circle at 85% 30%, rgba(112, 28, 82, 0.1) 0%, transparent 20%);
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 15px;
        }
        h1, h2, h3, h4 { color: #4fc3f7; font-weight: 700; margin-bottom: 0.8em; line-height: 1.3; }
        h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); margin-top: 1.2em; border-bottom: 3px solid #3949ab; padding-bottom: 0.3em; }
        h2 { font-size: clamp(1.8rem, 4vw, 2.5rem); margin-top: 1.8em; padding-left: 10px; border-left: 5px solid #7b1fa2; }
        h3 { font-size: clamp(1.5rem, 3vw, 2rem); margin-top: 1.5em; color: #b388ff; }
        h4 { font-size: 1.3rem; margin-top: 1.2em; color: #80deea; }
        p { margin-bottom: 1.2em; font-size: 1.05rem; }
        a { color: #82b1ff; text-decoration: none; transition: color 0.3s ease, border-bottom 0.3s ease; border-bottom: 1px dotted transparent; }
        a:hover { color: #448aff; border-bottom: 1px dotted #448aff; }
        strong { color: #ffcc80; font-weight: 700; }
        em { color: #ce93d8; font-style: italic; }
        blockquote {
            border-left: 4px solid #ff9800;
            padding: 1em 1.5em;
            margin: 1.5em 0;
            background: rgba(30, 30, 46, 0.7);
            font-style: italic;
            border-radius: 0 8px 8px 0;
        }
        .container { width: 100%; }
        .site-header {
            background: rgba(13, 13, 25, 0.95);
            backdrop-filter: blur(10px);
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 2px solid #1a237e;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.5);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .my-logo {
            font-family: 'Orbitron', sans-serif;
            font-size: 2.2rem;
            font-weight: 900;
            background: linear-gradient(90deg, #00bcd4, #7b1fa2);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-decoration: none;
            border: none;
            padding: 5px 10px;
            border-radius: 5px;
            transition: transform 0.3s ease, text-shadow 0.3s ease;
        }
        .my-logo:hover {
            transform: scale(1.05);
            text-shadow: 0 0 15px rgba(123, 31, 162, 0.7);
            border-bottom: none;
        }
        .breadcrumb {
            padding: 1em;
            background: rgba(26, 35, 126, 0.2);
            border-radius: 8px;
            margin: 1em 0;
            font-size: 0.9rem;
        }
        .breadcrumb a { color: #8c9eff; }
        .breadcrumb span { color: #b388ff; }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 1.5rem;
            flex-wrap: wrap;
        }
        .main-nav a {
            color: #c5cae9;
            padding: 0.5em 0.8em;
            border-radius: 4px;
            font-weight: 600;
            border: 1px solid transparent;
        }
        .main-nav a:hover {
            background: rgba(48, 63, 159, 0.3);
            border-color: #5c6bc0;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #4fc3f7;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.5rem;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            margin: 2rem 0;
        }
        @media (max-width: 992px) {
            .main-content { grid-template-columns: 1fr; }
        }
        .article-body {
            background: rgba(18, 18, 30, 0.8);
            padding: 2rem;
            border-radius: 12px;
            border: 1px solid #283593;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
        }
        .sidebar {
            background: rgba(25, 25, 40, 0.9);
            padding: 1.5rem;
            border-radius: 12px;
            border: 1px solid #4527a0;
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .widget {
            margin-bottom: 2rem;
        }
        .widget h3 {
            font-size: 1.3rem;
            border-bottom: 2px solid #7b1fa2;
            padding-bottom: 0.5rem;
            margin-bottom: 1rem;
        }
        .search-form, .comment-form, .rating-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .form-group { display: flex; flex-direction: column; }
        label { margin-bottom: 0.3rem; font-weight: 600; color: #90caf9; }
        input, textarea, select {
            padding: 0.8rem;
            background: rgba(40, 40, 60, 0.8);
            border: 1px solid #5c6bc0;
            border-radius: 6px;
            color: #fff;
            font-size: 1rem;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #42a5f5;
            box-shadow: 0 0 0 3px rgba(66, 165, 245, 0.2);
        }
        button, .btn {
            background: linear-gradient(135deg, #1a237e, #4a148c);
            color: white;
            border: none;
            padding: 0.9rem 1.8rem;
            border-radius: 6px;
            cursor: pointer;
            font-weight: bold;
            font-size: 1rem;
            transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
        }
        button:hover, .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 14px rgba(0, 0, 0, 0.4);
            background: linear-gradient(135deg, #283593, #6a1b9a);
        }
        .rating-stars {
            display: flex;
            gap: 0.5rem;
            font-size: 1.8rem;
            color: #ffb300;
            cursor: pointer;
            margin: 0.5rem 0;
        }
        .rating-stars span:hover { transform: scale(1.2); }
        .featured-image {
            width: 100%;
            height: auto;
            border-radius: 10px;
            border: 3px solid #3949ab;
            margin: 2rem 0;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
            transition: transform 0.5s ease;
        }
        .featured-image:hover { transform: scale(1.01); }
        .related-links {
            background: rgba(30, 30, 50, 0.6);
            padding: 1.5rem;
            border-radius: 10px;
            margin: 2rem 0;
            border-left: 5px solid #00bcd4;
        }
        .related-links ul { list-style-position: inside; margin-left: 1rem; }
        .related-links li { margin-bottom: 0.7rem; }
        .site-footer {
            background: rgba(10, 10, 20, 0.95);
            padding: 2.5rem 0 1.5rem;
            margin-top: 3rem;
            border-top: 2px solid #1a237e;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        friend-link {
            display: inline-block;
            background: rgba(48, 63, 159, 0.3);
            padding: 0.6em 1.2em;
            margin: 0.3em;
            border-radius: 5px;
            border: 1px solid #5c6bc0;
            transition: all 0.3s ease;
        }
        friend-link:hover {
            background: rgba(66, 165, 245, 0.3);
            transform: translateY(-3px);
        }
        friend-link a { color: #bbdefb; border-bottom: none; }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #333;
            color: #9e9e9e;
            font-size: 0.9rem;
        }
        .update-time {
            display: inline-block;
            background: #1b5e20;
            color: #c8e6c9;
            padding: 0.3em 0.8em;
            border-radius: 4px;
            font-size: 0.9rem;
            margin-bottom: 1.5rem;
        }
        .highlight-box {
            background: linear-gradient(135deg, rgba(26, 35, 126, 0.3), rgba(74, 20, 140, 0.3));
            padding: 1.5rem;
            border-radius: 10px;
            border: 1px solid #7b1fa2;
            margin: 1.5rem 0;
        }
        .tooltip {
            position: relative;
            border-bottom: 1px dashed #ff9800;
            cursor: help;
        }
        .tooltip-text {
            visibility: hidden;
            width: 250px;
            background-color: #212121;
            color: #fff;
            text-align: center;
            border-radius: 6px;
            padding: 10px;
            position: absolute;
            z-index: 1;
            bottom: 125%;
            left: 50%;
            transform: translateX(-50%);
            opacity: 0;
            transition: opacity 0.3s;
            font-size: 0.9rem;
            border: 1px solid #ff9800;
        }
        .tooltip:hover .tooltip-text { visibility: visible; opacity: 1; }
        @media (max-width: 768px) {
            .header-container { flex-direction: column; align-items: flex-start; }
            .hamburger { display: block; align-self: flex-end; margin-top: -3rem; }
            .main-nav { width: 100%; display: none; margin-top: 1rem; }
            .main-nav.active { display: block; }
            .main-nav ul { flex-direction: column; gap: 0.5rem; }
            .article-body { padding: 1.2rem; }
            .sidebar { position: static; }
        }