* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background: linear-gradient(135deg, #0c1a2d 0%, #1a3a5f 100%);
            color: #e0e0e0;
            line-height: 1.8;
            overflow-x: hidden;
        }
        a {
            color: #4da6ff;
            text-decoration: none;
            transition: color 0.3s ease, transform 0.2s ease;
        }
        a:hover {
            color: #80ccff;
            transform: translateY(-2px);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 10px;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: rgba(12, 26, 45, 0.95);
            backdrop-filter: blur(10px);
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 2px solid #2a4a7a;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a {
            font-size: 2.2rem;
            font-weight: 800;
            background: linear-gradient(90deg, #ffcc00, #ff9966);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-shadow: 0 2px 5px rgba(0,0,0,0.3);
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        nav a {
            color: #b8d4ff;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 5px;
        }
        nav a:hover {
            background: rgba(77, 166, 255, 0.15);
            color: #fff;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: #ffcc00;
        }
        .breadcrumb {
            padding: 1rem 0;
            font-size: 0.9rem;
            color: #8ab4f8;
        }
        .breadcrumb a {
            color: #8ab4f8;
        }
        .breadcrumb span {
            color: #ccc;
        }
        main {
            padding: 2rem 0;
        }
        article {
            background: rgba(25, 40, 65, 0.7);
            border-radius: 20px;
            padding: 2.5rem;
            margin-bottom: 2rem;
            border: 1px solid #3a5a8a;
        }
        h1 {
            font-size: 2.8rem;
            color: #ffdd44;
            margin-bottom: 1.5rem;
            text-align: center;
            text-shadow: 0 2px 8px rgba(0,0,0,0.7);
        }
        h2 {
            font-size: 2rem;
            color: #66ccff;
            margin: 2.5rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px dashed #3a5a8a;
        }
        h3 {
            font-size: 1.5rem;
            color: #99ddff;
            margin: 1.8rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .highlight {
            background: linear-gradient(90deg, rgba(102, 204, 255, 0.15), transparent);
            border-left: 5px solid #66ccff;
            padding: 1.5rem;
            border-radius: 0 10px 10px 0;
            margin: 2rem 0;
        }
        .tool-section {
            background: rgba(15, 30, 50, 0.9);
            border-radius: 15px;
            padding: 2rem;
            margin: 3rem 0;
            border: 2px solid #4a6fa5;
            text-align: center;
        }
        .tier-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .tier-box {
            background: rgba(40, 60, 90, 0.8);
            padding: 1.5rem;
            border-radius: 12px;
            transition: all 0.3s ease;
            cursor: grab;
            border: 2px solid transparent;
        }
        .tier-box:hover {
            transform: scale(1.03);
            border-color: #ffcc00;
            box-shadow: 0 10px 20px rgba(255, 204, 0, 0.2);
        }
        .tier-box h4 {
            color: #ffcc00;
            margin-bottom: 0.8rem;
        }
        .search-box {
            max-width: 600px;
            margin: 2rem auto;
            display: flex;
        }
        .search-box input {
            flex: 1;
            padding: 1rem;
            border: 2px solid #4a6fa5;
            border-radius: 8px 0 0 8px;
            background: #1a2d4a;
            color: #fff;
            font-size: 1rem;
        }
        .search-box button {
            background: linear-gradient(90deg, #4a6fa5, #2a4a7a);
            color: white;
            border: none;
            padding: 1rem 1.5rem;
            border-radius: 0 8px 8px 0;
            cursor: pointer;
            font-weight: bold;
            transition: background 0.3s;
        }
        .search-box button:hover {
            background: linear-gradient(90deg, #5a7fb5, #3a5a8a);
        }
        .comment-section, .rating-section {
            background: rgba(20, 35, 60, 0.8);
            padding: 2rem;
            border-radius: 15px;
            margin: 3rem 0;
        }
        .comment-section form, .rating-section form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        textarea, select, input[type="text"], input[type="email"] {
            padding: 1rem;
            border-radius: 8px;
            border: 1px solid #4a6fa5;
            background: #1a2d4a;
            color: #fff;
            font-size: 1rem;
        }
        .stars {
            display: flex;
            gap: 0.5rem;
            justify-content: center;
            margin: 1rem 0;
            font-size: 2rem;
            color: #555;
        }
        .stars .star {
            cursor: pointer;
            transition: color 0.2s;
        }
        .stars .star:hover,
        .stars .star.active {
            color: #ffcc00;
        }
        .btn {
            background: linear-gradient(90deg, #ff9966, #ffcc00);
            color: #0c1a2d;
            padding: 1rem 2rem;
            border: none;
            border-radius: 8px;
            font-weight: bold;
            font-size: 1.1rem;
            cursor: pointer;
            transition: all 0.3s;
            align-self: flex-start;
        }
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 15px rgba(255, 204, 0, 0.4);
        }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem;
            margin: 3rem 0;
        }
        @media (min-width: 768px) {
            .footer-links {
                grid-template-columns: repeat(5, 1fr);
            }
        }
        .web-link {
            background: rgba(30, 50, 80, 0.7);
            padding: 1.2rem;
            border-radius: 10px;
            text-align: center;
            transition: background 0.3s;
        }
        .web-link:hover {
            background: rgba(40, 70, 110, 0.9);
        }
        .web-link a {
            color: #99ddff;
            font-weight: 600;
        }
        footer {
            background: #0a1525;
            padding: 2rem 0;
            text-align: center;
            border-top: 2px solid #2a4a7a;
            margin-top: 3rem;
        }
        .copyright {
            color: #8ab4f8;
            font-size: 0.9rem;
            margin-top: 1rem;
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                background: rgba(12, 26, 45, 0.98);
                position: absolute;
                top: 100%;
                left: 0;
                padding: 1rem;
                border-top: 2px solid #2a4a7a;
            }
            nav ul.active {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            article {
                padding: 1.5rem;
            }
            .tier-container {
                grid-template-columns: 1fr;
            }
        }