* { 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: #e0e0e0;
            background: linear-gradient(135deg, #0c1a2d 0%, #1a1a2e 50%, #16213e 100%);
            background-attachment: fixed;
            max-width: 100%;
            overflow-x: hidden;
            padding-bottom: 40px;
        }
        img { max-width: 100%; height: auto; display: block; }
        h1, h2, h3, h4 { color: #4fc3f7; margin-bottom: 0.75em; font-weight: 700; line-height: 1.3; }
        h1 { font-size: clamp(2.5rem, 5vw, 3.5rem); text-align: center; margin-top: 1em; text-shadow: 0 0 10px rgba(79, 195, 247, 0.5); }
        h2 { font-size: clamp(1.8rem, 4vw, 2.5rem); border-bottom: 2px solid #2979ff; padding-bottom: 0.3em; margin-top: 2em; }
        h3 { font-size: clamp(1.5rem, 3vw, 2rem); color: #81d4fa; margin-top: 1.5em; }
        h4 { font-size: 1.3rem; color: #b3e5fc; margin-top: 1.2em; }
        p { margin-bottom: 1.5em; font-size: 1.1rem; }
        a { color: #40c4ff; text-decoration: none; transition: all 0.3s ease; }
        a:hover { color: #80deea; text-decoration: underline; text-shadow: 0 0 8px rgba(64, 196, 255, 0.7); }
        strong, b { color: #ffcc80; font-weight: 700; }
        em { color: #ce93d8; font-style: italic; }
        ul, ol { padding-left: 2em; margin-bottom: 1.5em; }
        li { margin-bottom: 0.5em; }
        blockquote {
            border-left: 4px solid #ff9800;
            padding-left: 1.5em;
            margin: 2em 0;
            font-style: italic;
            background: rgba(255, 152, 0, 0.05);
            padding: 1.5em;
            border-radius: 0 8px 8px 0;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            margin-top: 30px;
        }
        @media (max-width: 992px) {
            .content-wrapper { grid-template-columns: 1fr; }
        }
        .site-header {
            background: rgba(10, 25, 47, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid #1a237e;
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 15px 0;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-family: 'Orbitron', sans-serif;
            font-size: 2.2rem;
            font-weight: 900;
            background: linear-gradient(90deg, #00bcd4, #2979ff, #7b1fa2);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-decoration: none;
            letter-spacing: 1px;
        }
        .my-logo:hover { text-decoration: none; filter: brightness(1.2); }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 25px;
        }
        .main-nav a {
            color: #bbdefb;
            font-weight: 600;
            padding: 8px 5px;
            border-radius: 4px;
            font-size: 1rem;
        }
        .main-nav a:hover,
        .main-nav a.active {
            background: rgba(41, 121, 255, 0.2);
            text-decoration: none;
            color: #40c4ff;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #40c4ff;
            font-size: 1.8rem;
            cursor: pointer;
        }
        @media (max-width: 768px) {
            .main-nav {
                position: fixed;
                top: 80px;
                left: -100%;
                width: 100%;
                background: rgba(13, 27, 42, 0.98);
                transition: left 0.4s ease;
                padding: 20px;
                border-top: 1px solid #1a237e;
            }
            .main-nav.active { left: 0; }
            .main-nav ul { flex-direction: column; gap: 15px; }
            .main-nav a { display: block; padding: 12px; }
            .hamburger { display: block; }
        }
        .breadcrumb {
            padding: 15px 0;
            font-size: 0.9rem;
            color: #90a4ae;
        }
        .breadcrumb a { color: #64b5f6; }
        .breadcrumb span { color: #e0e0e0; }
        .main-content {
            background: rgba(30, 40, 62, 0.7);
            border-radius: 16px;
            padding: 40px;
            border: 1px solid #37474f;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 2em;
            padding-bottom: 1em;
            border-bottom: 1px dashed #546e7a;
            color: #b0bec5;
            font-size: 0.95rem;
            flex-wrap: wrap;
            gap: 10px;
        }
        .update-time { color: #ffb74d; }
        .featured-image {
            width: 100%;
            border-radius: 12px;
            overflow: hidden;
            margin: 2em 0;
            border: 2px solid #2979ff;
        }
        .featured-image img {
            width: 100%;
            transition: transform 0.5s ease;
        }
        .featured-image:hover img { transform: scale(1.02); }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: #b0bec5;
            padding: 10px;
            background: rgba(0, 0, 0, 0.3);
        }
        .sidebar {
            background: rgba(25, 35, 55, 0.8);
            border-radius: 16px;
            padding: 25px;
            border: 1px solid #37474f;
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .sidebar-widget {
            margin-bottom: 30px;
        }
        .sidebar-widget h3 {
            font-size: 1.3rem;
            margin-bottom: 1em;
            color: #4fc3f7;
        }
        .widget-list { list-style: none; padding-left: 0; }
        .widget-list li { margin-bottom: 12px; padding-left: 0; }
        .widget-list a {
            display: block;
            padding: 10px 15px;
            background: rgba(55, 71, 79, 0.4);
            border-radius: 8px;
            border-left: 4px solid #00bcd4;
        }
        .widget-list a:hover {
            background: rgba(41, 121, 255, 0.3);
            text-decoration: none;
            border-left-color: #ff9800;
        }
        .interactive-module {
            background: rgba(13, 27, 42, 0.9);
            border-radius: 12px;
            padding: 25px;
            margin: 2.5em 0;
            border: 1px solid #00bcd4;
        }
        .module-title {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #00bcd4;
            margin-bottom: 1.5em;
        }
        .module-title i { font-size: 1.5rem; }
        .form-group {
            margin-bottom: 1.2em;
        }
        label {
            display: block;
            margin-bottom: 0.5em;
            color: #bbdefb;
            font-weight: 600;
        }
        input, textarea, select {
            width: 100%;
            padding: 12px 15px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid #546e7a;
            border-radius: 8px;
            color: #fff;
            font-size: 1rem;
            transition: border 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #00bcd4;
            box-shadow: 0 0 0 2px rgba(0, 188, 212, 0.2);
        }
        .btn {
            display: inline-block;
            background: linear-gradient(90deg, #2979ff, #00bcd4);
            color: white;
            padding: 12px 28px;
            border: none;
            border-radius: 8px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: all 0.3s ease;
            text-align: center;
        }
        .btn:hover {
            background: linear-gradient(90deg, #1c68e0, #00acc1);
            text-decoration: none;
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(41, 121, 255, 0.4);
        }
        .rating-stars {
            display: flex;
            gap: 10px;
            margin-bottom: 1em;
            font-size: 1.8rem;
            color: #ffb74d;
        }
        .star { cursor: pointer; transition: transform 0.2s; }
        .star:hover { transform: scale(1.2); }
        .site-footer {
            margin-top: 60px;
            padding-top: 40px;
            border-top: 2px solid #1a237e;
            text-align: center;
            color: #90a4ae;
        }
        friend-link {
            display: block;
            margin: 25px 0;
        }
        friend-link a {
            color: #64b5f6;
            margin: 0 15px;
            font-weight: 600;
        }
        .copyright {
            font-size: 0.9rem;
            margin-top: 20px;
            padding-top: 20px;
            border-top: 1px solid #37474f;
        }
        .text-center { text-align: center; }
        .mb-3 { margin-bottom: 1.5em; }
        .mt-3 { margin-top: 1.5em; }
        .highlight-box {
            background: linear-gradient(135deg, rgba(255, 152, 0, 0.1), rgba(156, 39, 176, 0.1));
            border-left: 5px solid #ff9800;
            padding: 20px;
            border-radius: 0 10px 10px 0;
            margin: 2em 0;
        }
        .emoji { font-size: 1.2em; margin-right: 5px; }
        @media (max-width: 576px) {
            .main-content, .sidebar { padding: 25px 20px; }
            .container { padding: 0 15px; }
            .article-meta { flex-direction: column; align-items: flex-start; }
        }