* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        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: #74c0fc;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            border: 0;
        }
        .site-header {
            background: linear-gradient(135deg, #1a2332 0%, #0f1419 100%);
            padding: 1rem 0;
            border-bottom: 2px solid #2a3a5a;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: #ff6b6b;
            text-transform: uppercase;
            letter-spacing: 1px;
            background: linear-gradient(90deg, #ff6b6b, #ffa8a8);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .my-logo:hover {
            text-decoration: none;
        }
        .main-nav {
            display: flex;
            gap: 1.8rem;
        }
        .nav-link {
            color: #c1c9d6;
            font-weight: 600;
            font-size: 1rem;
            padding: 0.5rem 0;
            position: relative;
        }
        .nav-link:hover {
            color: #ffa8a8;
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: #ff6b6b;
            transition: width 0.3s ease;
        }
        .nav-link:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #c1c9d6;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .breadcrumb {
            padding: 1rem 0;
            font-size: 0.9rem;
            color: #8a9bb2;
            background-color: #141b26;
            margin-bottom: 2rem;
        }
        .breadcrumb a {
            color: #8a9bb2;
        }
        .breadcrumb a:hover {
            color: #ffa8a8;
        }
        .hero {
            text-align: center;
            padding: 3rem 1rem;
            background: radial-gradient(ellipse at center, #1e2a3a 0%, #0f1419 70%);
            margin-bottom: 3rem;
            border-radius: 12px;
            border: 1px solid #2a3a5a;
        }
        .hero h1 {
            font-size: 3.2rem;
            color: #ffffff;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
        }
        .hero p {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto 2rem;
            color: #c1c9d6;
        }
        .search-form {
            max-width: 600px;
            margin: 2rem auto 0;
            display: flex;
            border-radius: 50px;
            overflow: hidden;
            border: 2px solid #4dabf7;
            background: #1a2332;
        }
        .search-input {
            flex-grow: 1;
            padding: 1rem 1.5rem;
            border: none;
            background: transparent;
            color: #e0e0e0;
            font-size: 1rem;
        }
        .search-input:focus {
            outline: none;
        }
        .search-btn {
            background: #4dabf7;
            color: white;
            border: none;
            padding: 0 1.8rem;
            cursor: pointer;
            font-weight: 600;
            transition: background 0.3s;
        }
        .search-btn:hover {
            background: #339af0;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            margin-bottom: 3rem;
        }
        .main-article {
            background: #141b26;
            padding: 2.5rem;
            border-radius: 12px;
            border: 1px solid #2a3a5a;
        }
        .sidebar {
            background: #141b26;
            padding: 1.8rem;
            border-radius: 12px;
            border: 1px solid #2a3a5a;
            align-self: start;
            position: sticky;
            top: 120px;
        }
        h1, h2, h3, h4 {
            color: #ffffff;
            margin-top: 2.5rem;
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        h1 { font-size: 2.8rem; }
        h2 {
            font-size: 2.2rem;
            color: #ffa8a8;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #2a3a5a;
        }
        h3 { font-size: 1.8rem; color: #74c0fc; }
        h4 { font-size: 1.4rem; color: #b197fc; }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
        }
        .lead {
            font-size: 1.3rem;
            font-weight: 500;
            color: #c1c9d6;
            margin-bottom: 2rem;
        }
        .highlight {
            background: rgba(255, 107, 107, 0.1);
            border-left: 4px solid #ff6b6b;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .tips-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .tip-card {
            background: #1a2332;
            padding: 1.5rem;
            border-radius: 8px;
            border-top: 4px solid #4dabf7;
        }
        .tip-card h4 {
            margin-top: 0;
            color: #74c0fc;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.5rem;
        }
        .last-updated {
            text-align: center;
            font-style: italic;
            color: #8a9bb2;
            margin: 3rem 0;
            padding-top: 1rem;
            border-top: 1px dashed #2a3a5a;
        }
        .article-img {
            width: 100%;
            border-radius: 10px;
            margin: 2.5rem auto;
            border: 2px solid #2a3a5a;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
        }
        .related-links {
            background: #1a2332;
            padding: 1.5rem;
            border-radius: 8px;
            margin: 2rem 0;
        }
        .related-links h3 {
            margin-top: 0;
        }
        .related-links ul {
            list-style: none;
            column-count: 2;
            column-gap: 2rem;
        }
        .related-links li {
            margin-bottom: 0.8rem;
            break-inside: avoid;
        }
        .related-links a::before {
            content: '🔗 ';
            font-size: 0.9em;
        }
        .interaction-section {
            background: #141b26;
            padding: 2.5rem;
            border-radius: 12px;
            border: 1px solid #2a3a5a;
            margin: 3rem 0;
        }
        .interaction-section h2 {
            border-bottom: none;
            text-align: center;
        }
        .form-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-top: 2rem;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #c1c9d6;
        }
        .form-control {
            width: 100%;
            padding: 0.9rem;
            background: #1a2332;
            border: 1px solid #2a3a5a;
            border-radius: 6px;
            color: #e0e0e0;
            font-size: 1rem;
        }
        .form-control:focus {
            outline: none;
            border-color: #4dabf7;
        }
        .rating {
            display: flex;
            gap: 0.5rem;
            direction: rtl;
            justify-content: center;
        }
        .rating input {
            display: none;
        }
        .rating label {
            font-size: 2rem;
            color: #444;
            cursor: pointer;
            transition: color 0.3s;
        }
        .rating label:hover,
        .rating label:hover ~ label,
        .rating input:checked ~ label {
            color: #ffd700;
        }
        .submit-btn {
            background: linear-gradient(90deg, #ff6b6b, #ff8787);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 6px;
            font-weight: 700;
            font-size: 1.1rem;
            cursor: pointer;
            transition: transform 0.3s, box-shadow 0.3s;
            display: block;
            margin: 1.5rem auto 0;
        }
        .submit-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 15px rgba(255, 107, 107, 0.4);
            text-decoration: none;
        }
        .widget {
            margin-bottom: 2.5rem;
        }
        .widget-title {
            color: #ffa8a8;
            font-size: 1.4rem;
            margin-bottom: 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px solid #2a3a5a;
        }
        .widget ul {
            list-style: none;
        }
        .widget li {
            margin-bottom: 0.8rem;
            padding-left: 1.2rem;
            position: relative;
        }
        .widget li::before {
            content: '▶';
            position: absolute;
            left: 0;
            color: #4dabf7;
            font-size: 0.8em;
        }
        .site-footer {
            background: #0a0e14;
            padding: 3rem 0 2rem;
            border-top: 2px solid #2a3a5a;
            margin-top: 4rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-widget h3 {
            color: #ffa8a8;
            font-size: 1.4rem;
            margin-bottom: 1.5rem;
        }
        friend-link {
            display: inline-block;
            background: #1a2332;
            color: #74c0fc;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            margin: 0.3rem;
            border: 1px solid #2a3a5a;
        }
        friend-link:hover {
            background: #2a3a5a;
            text-decoration: none;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid #2a3a5a;
            color: #8a9bb2;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
            }
            .hero h1 {
                font-size: 2.5rem;
            }
            .related-links ul {
                column-count: 1;
            }
        }
        @media (max-width: 768px) {
            .main-nav {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: #1a2332;
                padding: 1rem;
                border-top: 2px solid #2a3a5a;
                box-shadow: 0 10px 20px rgba(0,0,0,0.3);
            }
            .main-nav.active {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            .header-container {
                flex-wrap: wrap;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .main-article, .interaction-section {
                padding: 1.5rem;
            }
            .form-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 15px;
            }
            .tips-grid {
                grid-template-columns: 1fr;
            }
            h2 { font-size: 1.8rem; }
            h3 { font-size: 1.5rem; }
        }