* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #0f1a20;
            color: #e0e0e0;
            line-height: 1.7;
            max-width: 100vw;
            overflow-x: hidden;
        }
        a {
            color: #4da8da;
            text-decoration: none;
            transition: color 0.3s ease, transform 0.2s ease;
        }
        a:hover {
            color: #78c6ff;
            transform: translateY(-2px);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 8px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
        }
        .container {
            width: 90%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .text-center { text-align: center; }
        .text-highlight { color: #ffcc5c; font-weight: bold; }
        .btn {
            display: inline-block;
            background: linear-gradient(135deg, #1e5799 0%, #207cca 100%);
            color: white;
            padding: 12px 24px;
            border-radius: 6px;
            border: none;
            cursor: pointer;
            font-weight: 600;
            transition: all 0.3s ease;
            box-shadow: 0 4px 6px rgba(0,0,0,0.2);
        }
        .btn:hover {
            background: linear-gradient(135deg, #207cca 0%, #2989d8 100%);
            transform: translateY(-3px);
            box-shadow: 0 6px 12px rgba(0,0,0,0.3);
        }
        .site-header {
            background: rgba(15, 26, 32, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 2px solid #1c3b4d;
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 15px 0;
        }
        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-family: fantasy, Copperplate, Papyrus;
            font-size: 2.5rem;
            font-weight: 800;
            background: linear-gradient(to right, #ffcc5c, #ff955c);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            text-shadow: 0 2px 4px rgba(0,0,0,0.3);
        }
        .my-logo a {
            background: none;
            -webkit-text-fill-color: inherit;
        }
        .main-nav {
            display: flex;
            gap: 30px;
        }
        .main-nav a {
            font-weight: 600;
            font-size: 1.1rem;
            padding: 8px 0;
            position: relative;
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: #4da8da;
            transition: width 0.3s ease;
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            gap: 5px;
        }
        .hamburger span {
            width: 25px;
            height: 3px;
            background: #4da8da;
            border-radius: 2px;
            transition: 0.3s;
        }
        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(6px, 6px);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(6px, -6px);
        }
        .breadcrumb {
            padding: 15px 0;
            background-color: #15232b;
            font-size: 0.9rem;
        }
        .breadcrumb a { color: #a0c8e0; }
        .breadcrumb span { color: #cccccc; }
        .main-content {
            padding: 40px 0;
            background: linear-gradient(180deg, #0f1a20 0%, #15232b 100%);
        }
        .article-header {
            margin-bottom: 40px;
            border-left: 5px solid #4da8da;
            padding-left: 20px;
        }
        h1 {
            font-size: 2.8rem;
            margin-bottom: 15px;
            color: #ffffff;
            line-height: 1.2;
        }
        .article-meta {
            color: #a0a0a0;
            font-style: italic;
        }
        .content-section {
            margin-bottom: 50px;
        }
        h2 {
            font-size: 2.2rem;
            color: #4da8da;
            margin: 30px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #2a4a5a;
        }
        h3 {
            font-size: 1.8rem;
            color: #78c6ff;
            margin: 25px 0 15px;
        }
        h4 {
            font-size: 1.4rem;
            color: #a0d6ff;
            margin: 20px 0 10px;
        }
        p {
            margin-bottom: 20px;
            font-size: 1.1rem;
            text-align: justify;
        }
        blockquote {
            border-left: 4px solid #ffcc5c;
            padding-left: 20px;
            margin: 25px 0;
            font-style: italic;
            color: #cccccc;
            background: rgba(255, 204, 92, 0.05);
            padding: 20px;
            border-radius: 0 8px 8px 0;
        }
        .tool-container, .form-container {
            background: #1a2b35;
            border-radius: 12px;
            padding: 25px;
            margin: 30px 0;
            border: 1px solid #2a4a5a;
        }
        .form-group {
            margin-bottom: 20px;
        }
        label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: #a0c8e0;
        }
        textarea, input[type="text"], input[type="number"], select {
            width: 100%;
            padding: 12px;
            background: #0f1a20;
            border: 1px solid #2a4a5a;
            border-radius: 6px;
            color: #e0e0e0;
            font-size: 1rem;
            transition: border 0.3s;
        }
        textarea:focus, input:focus, select:focus {
            outline: none;
            border-color: #4da8da;
            box-shadow: 0 0 0 2px rgba(77, 168, 218, 0.2);
        }
        .result-box {
            background: #0f1a20;
            padding: 15px;
            border-radius: 6px;
            border: 1px dashed #4da8da;
            margin-top: 15px;
            min-height: 60px;
            word-break: break-all;
            white-space: pre-wrap;
        }
        .star-rating {
            direction: rtl;
            display: inline-flex;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            color: #ccc;
            font-size: 2rem;
            padding: 0 5px;
            cursor: pointer;
            transition: color 0.3s;
        }
        .star-rating input:checked ~ label,
        .star-rating label:hover,
        .star-rating label:hover ~ label {
            color: #ffcc5c;
        }
        .comment {
            background: #1a2b35;
            padding: 20px;
            border-radius: 8px;
            margin-bottom: 20px;
            border-left: 4px solid #4da8da;
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 10px;
            font-size: 0.9rem;
            color: #a0a0a0;
        }
        .comment-author {
            font-weight: bold;
            color: #4da8da;
        }
        .site-footer {
            background: #0a1217;
            padding: 40px 0 20px;
            border-top: 2px solid #1c3b4d;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-bottom: 30px;
        }
        .footer-section h4 {
            color: #ffcc5c;
            margin-bottom: 20px;
            font-size: 1.3rem;
        }
        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
        }
        friend-link {
            display: inline-block;
            background: #15232b;
            padding: 8px 15px;
            border-radius: 6px;
            border: 1px solid #2a4a5a;
            transition: all 0.3s;
        }
        friend-link:hover {
            background: #1c3b4d;
            border-color: #4da8da;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #2a4a5a;
            color: #888;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.4rem; }
            h2 { font-size: 2rem; }
            h3 { font-size: 1.6rem; }
        }
        @media (max-width: 768px) {
            .main-nav {
                position: fixed;
                top: 80px;
                left: 0;
                width: 100%;
                background: rgba(15, 26, 32, 0.98);
                flex-direction: column;
                align-items: center;
                padding: 20px 0;
                gap: 20px;
                transform: translateY(-150%);
                transition: transform 0.5s ease;
                z-index: 999;
            }
            .main-nav.active {
                transform: translateY(0);
            }
            .hamburger { display: flex; }
            .header-inner { position: relative; }
            .my-logo { font-size: 2rem; }
        }
        @media (max-width: 480px) {
            .container { width: 95%; padding: 0 10px; }
            h1 { font-size: 2rem; }
            .btn { padding: 10px 20px; }
        }