* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #0f1419;
            color: #e0e0e0;
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            color: #4dabf7;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #a5d8ff;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #1a2230 0%, #0f1419 100%);
            padding: 1rem 0;
            border-bottom: 2px solid #2a3a52;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 2.2rem;
            font-weight: 800;
            background: linear-gradient(to right, #ff6b6b, #4dabf7);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-shadow: 0 2px 4px rgba(0,0,0,0.3);
        }
        .logo a {
            background: none;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: #b0b7c3;
            font-weight: 600;
            padding: 0.5rem 0.8rem;
            border-radius: 4px;
            font-size: 1.05rem;
        }
        .main-nav a:hover,
        .main-nav a.active {
            color: #fff;
            background-color: rgba(77, 171, 247, 0.15);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            color: #4dabf7;
            cursor: pointer;
            background: none;
            border: none;
        }
        .breadcrumb {
            background-color: #1a2230;
            padding: 0.8rem 0;
            font-size: 0.9rem;
            margin-bottom: 2rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin: 0 10px;
            color: #4dabf7;
        }
        .breadcrumb a {
            color: #b0b7c3;
        }
        .breadcrumb a:hover {
            color: #4dabf7;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            padding: 2rem 0;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        article {
            background: #1a2230;
            border-radius: 12px;
            padding: 2.5rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
        }
        article h1 {
            font-size: 2.8rem;
            color: #fff;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            background: linear-gradient(to right, #ffa8a8, #74c0fc);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        article h2 {
            font-size: 2rem;
            color: #4dabf7;
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #2a3a52;
        }
        article h3 {
            font-size: 1.5rem;
            color: #a5d8ff;
            margin: 2rem 0 1rem;
        }
        article p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
        }
        article strong {
            color: #ffd8a8;
            font-weight: 700;
        }
        .hero-image {
            width: 100%;
            border-radius: 10px;
            margin: 2rem 0;
            border: 3px solid #2a3a52;
        }
        .tip-box, .data-box {
            background: #2a3a52;
            border-left: 5px solid #4dabf7;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .data-box {
            border-left-color: #ff6b6b;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.3em;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .widget {
            background: #1a2230;
            border-radius: 12px;
            padding: 1.8rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.3);
        }
        .widget h3 {
            color: #74c0fc;
            margin-bottom: 1.2rem;
            font-size: 1.4rem;
        }
        .search-form {
            display: flex;
        }
        .search-form input {
            flex-grow: 1;
            padding: 0.9rem 1rem;
            background: #2a3a52;
            border: 1px solid #3a4a62;
            border-radius: 8px 0 0 8px;
            color: #fff;
            font-size: 1rem;
        }
        .search-form button {
            background: #4dabf7;
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 8px 8px 0;
            cursor: pointer;
            font-weight: bold;
            transition: background 0.3s;
        }
        .search-form button:hover {
            background: #339af0;
        }
        .rating-widget .stars {
            display: flex;
            gap: 0.5rem;
            margin-bottom: 1rem;
            font-size: 1.8rem;
            color: #555;
        }
        .stars i {
            cursor: pointer;
            transition: color 0.2s;
        }
        .stars i.active,
        .stars i:hover,
        .stars i:hover ~ i {
            color: #ffd43b;
        }
        .rating-form input,
        .comment-form textarea,
        .comment-form input {
            width: 100%;
            padding: 0.9rem;
            margin-bottom: 1rem;
            background: #2a3a52;
            border: 1px solid #3a4a62;
            border-radius: 8px;
            color: #fff;
            font-size: 1rem;
        }
        .rating-form button,
        .comment-form button {
            width: 100%;
            padding: 1rem;
            background: linear-gradient(to right, #40c057, #2b8a3e);
            color: white;
            border: none;
            border-radius: 8px;
            font-weight: bold;
            cursor: pointer;
            transition: opacity 0.3s;
        }
        .rating-form button:hover,
        .comment-form button:hover {
            opacity: 0.9;
        }
        .long-tail-links {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1.2rem;
            margin: 3rem 0 2rem;
        }
        .web-link {
            background: #1a2230;
            padding: 1.2rem;
            border-radius: 8px;
            border-left: 4px solid #4dabf7;
            transition: transform 0.3s, background 0.3s;
        }
        .web-link:hover {
            transform: translateY(-5px);
            background: #2a3a52;
        }
        .web-link a {
            color: #a5d8ff;
            font-weight: 600;
            display: block;
        }
        .site-footer {
            background: #0a0e13;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
            border-top: 2px solid #2a3a52;
        }
        .footer-container {
            display: flex;
            flex-direction: column;
        }
        .copyright {
            text-align: center;
            color: #888;
            font-size: 0.95rem;
            padding-top: 2rem;
            border-top: 1px solid #2a3a52;
            margin-top: 2rem;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav ul {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: #1a2230;
                padding: 1rem;
                box-shadow: 0 10px 15px rgba(0,0,0,0.5);
                border-top: 1px solid #2a3a52;
            }
            .main-nav.active ul {
                display: flex;
            }
            article {
                padding: 1.5rem;
            }
            article h1 {
                font-size: 2.2rem;
            }
            .long-tail-links {
                grid-template-columns: 1fr;
            }
        }