*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #e0e0e0;
            background: linear-gradient(135deg, #0c0f15 0%, #1a1d2b 100%);
            background-attachment: fixed;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a { color: #4dabf7; text-decoration: none; transition: color 0.3s, transform 0.2s; }
        a:hover { color: #74c0fc; transform: translateY(-1px); }
        img { max-width: 100%; height: auto; display: block; }
        .container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        .site-header {
            background: rgba(12, 15, 21, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 2px solid #228be6;
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 15px 0;
        }
        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .my-logo {
            font-family: 'Arial Black', sans-serif;
            font-size: 2.2rem;
            background: linear-gradient(90deg, #228be6, #15aabf);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
            padding: 5px 0;
        }
        .my-logo:hover { transform: scale(1.03); }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 25px;
        }
        .main-nav a {
            color: #adb5bd;
            font-weight: 600;
            padding: 8px 12px;
            border-radius: 5px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .main-nav a:hover, .main-nav a.active {
            color: #fff;
            background: rgba(34, 139, 230, 0.2);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #adb5bd;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 5px;
        }
        .breadcrumb {
            padding: 15px 0;
            background: rgba(255, 255, 255, 0.03);
            font-size: 0.9rem;
            margin-bottom: 30px;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 10px;
        }
        .breadcrumb li:not(:last-child)::after {
            content: "›";
            margin-left: 10px;
            color: #666;
        }
        .main-content {
            flex: 1;
            padding: 30px 0;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        @media (max-width: 992px) {
            .content-grid { grid-template-columns: 1fr; }
        }
        article {
            background: rgba(30, 33, 45, 0.7);
            border-radius: 15px;
            padding: 40px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
            border: 1px solid #2c303a;
        }
        h1 {
            font-size: 3rem;
            margin-bottom: 20px;
            color: #fff;
            line-height: 1.2;
            text-shadow: 0 2px 5px rgba(0,0,0,0.5);
            border-bottom: 3px solid #228be6;
            padding-bottom: 15px;
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
            margin-bottom: 30px;
            padding-bottom: 20px;
            border-bottom: 1px dashed #444;
            color: #aaa;
            font-size: 0.95rem;
        }
        .update-time { color: #20c997; }
        h2, h3, h4 {
            color: #4dabf7;
            margin-top: 2em;
            margin-bottom: 0.8em;
            scroll-margin-top: 100px;
        }
        h2 { font-size: 2.2rem; border-left: 5px solid #fab005; padding-left: 15px; }
        h3 { font-size: 1.7rem; }
        h4 { font-size: 1.4rem; color: #74c0fc; }
        p {
            margin-bottom: 1.5em;
            text-align: justify;
            font-size: 1.1rem;
        }
        .highlight {
            background: rgba(34, 139, 230, 0.1);
            border-left: 4px solid #228be6;
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 8px 8px 0;
        }
        .feature-img {
            width: 100%;
            border-radius: 10px;
            margin: 30px auto;
            border: 2px solid #3b5bdb;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
        }
        ul, ol { margin: 1.5em 0; padding-left: 2em; }
        li { margin-bottom: 0.7em; }
        strong { color: #ffd43b; font-weight: 700; }
        em { color: #b2f2bb; font-style: italic; }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        .widget {
            background: rgba(30, 33, 45, 0.7);
            border-radius: 15px;
            padding: 25px;
            border: 1px solid #2c303a;
        }
        .widget h3 {
            font-size: 1.5rem;
            margin-top: 0;
            margin-bottom: 20px;
            color: #ffa94d;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .search-form {
            display: flex;
        }
        .search-form input {
            flex: 1;
            padding: 12px 15px;
            border: 1px solid #444;
            background: #1c1f2b;
            color: #fff;
            border-radius: 8px 0 0 8px;
            font-size: 1rem;
        }
        .search-form button {
            background: #228be6;
            color: white;
            border: none;
            padding: 0 20px;
            border-radius: 0 8px 8px 0;
            cursor: pointer;
            font-size: 1.1rem;
            transition: background 0.3s;
        }
        .search-form button:hover { background: #1c7ed6; }
        .link-list { list-style: none; padding: 0; }
        .link-list li { margin-bottom: 12px; }
        .link-list a {
            display: block;
            padding: 12px 15px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 8px;
            border-left: 4px solid #20c997;
        }
        .link-list a:hover {
            background: rgba(34, 139, 230, 0.15);
            border-left-color: #228be6;
        }
        .rating-form, .comment-form {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .stars {
            display: flex;
            gap: 5px;
            font-size: 1.8rem;
            color: #444;
            cursor: pointer;
        }
        .stars .active { color: #ffd43b; }
        .form-group { display: flex; flex-direction: column; gap: 8px; }
        label { font-weight: 600; color: #adb5bd; }
        input, textarea, select {
            padding: 12px 15px;
            background: #1c1f2b;
            border: 1px solid #444;
            border-radius: 8px;
            color: #fff;
            font-size: 1rem;
            font-family: inherit;
        }
        textarea { min-height: 120px; resize: vertical; }
        .submit-btn {
            background: linear-gradient(90deg, #20c997, #12b886);
            color: white;
            border: none;
            padding: 14px 25px;
            border-radius: 8px;
            font-weight: bold;
            cursor: pointer;
            font-size: 1.1rem;
            transition: transform 0.2s, box-shadow 0.2s;
            align-self: flex-start;
        }
        .submit-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(32, 201, 151, 0.4);
        }
        .site-footer {
            background: rgba(10, 12, 18, 0.95);
            margin-top: 60px;
            padding: 40px 0 20px;
            border-top: 2px solid #228be6;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        friend-link {
            display: block;
            background: rgba(255, 255, 255, 0.03);
            padding: 15px;
            border-radius: 8px;
            margin-bottom: 10px;
            border: 1px solid #333;
            transition: all 0.3s;
        }
        friend-link:hover {
            background: rgba(34, 139, 230, 0.1);
            border-color: #228be6;
            transform: translateX(5px);
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #333;
            color: #888;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            .main-nav {
                width: 100%;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.5s ease;
            }
            .main-nav.active { max-height: 400px; margin-top: 20px; }
            .main-nav ul {
                flex-direction: column;
                gap: 10px;
            }
            h1 { font-size: 2.3rem; }
            h2 { font-size: 1.9rem; }
            .article-meta { flex-direction: column; align-items: flex-start; }
            article { padding: 25px; }
        }