* {
            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: #e0f7ff;
            line-height: 1.7;
            max-width: 1400px;
            margin: 0 auto;
            box-shadow: 0 0 50px rgba(0, 40, 80, 0.5);
        }
        a {
            color: #4fc3f7;
            text-decoration: none;
            transition: all 0.3s ease;
        }
        a:hover {
            color: #ffcc00;
            text-shadow: 0 0 8px rgba(255, 204, 0, 0.5);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 10px;
        }
        .container {
            width: 95%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        section {
            margin-bottom: 3rem;
            padding: 2rem;
            background: rgba(18, 35, 56, 0.85);
            border-radius: 15px;
            border-left: 5px solid #4fc3f7;
        }
        header {
            background: rgba(12, 26, 45, 0.95);
            padding: 1.5rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            backdrop-filter: blur(10px);
            border-bottom: 2px solid #2a4a6e;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            background: linear-gradient(90deg, #4fc3f7, #ffcc00);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            text-shadow: 0 2px 5px rgba(0,0,0,0.3);
        }
        .my-logo a {
            background: none;
            -webkit-text-fill-color: unset;
        }
        nav {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 1.8rem;
        }
        .nav-links a {
            font-weight: 600;
            padding: 0.5rem 0.8rem;
            border-radius: 6px;
        }
        .nav-links a:hover {
            background: rgba(79, 195, 247, 0.15);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: #4fc3f7;
        }
        .breadcrumb {
            padding: 1rem 0;
            font-size: 0.9rem;
            color: #a0c8e0;
        }
        .breadcrumb a::after {
            content: " › ";
            margin: 0 8px;
            color: #4fc3f7;
        }
        .breadcrumb a:last-child::after {
            content: "";
        }
        h1 {
            font-size: 3.2rem;
            margin: 2rem 0 1.5rem;
            color: #ffcc00;
            text-align: center;
            line-height: 1.2;
            text-shadow: 0 2px 10px rgba(255, 204, 0, 0.3);
        }
        h2 {
            font-size: 2.4rem;
            margin: 2.5rem 0 1.5rem;
            color: #4fc3f7;
            border-bottom: 2px solid #2a4a6e;
            padding-bottom: 0.7rem;
        }
        h3 {
            font-size: 1.8rem;
            margin: 2rem 0 1rem;
            color: #80deea;
        }
        h4 {
            font-size: 1.4rem;
            margin: 1.5rem 0 0.8rem;
            color: #b3e5fc;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .intro {
            font-size: 1.25rem;
            background: rgba(255, 204, 0, 0.05);
            padding: 1.5rem;
            border-radius: 10px;
            border-left: 4px solid #ffcc00;
        }
        strong {
            color: #ffcc00;
            font-weight: 700;
        }
        em {
            color: #80deea;
            font-style: italic;
        }
        blockquote {
            border-left: 4px solid #4fc3f7;
            padding-left: 1.5rem;
            margin: 2rem 0;
            font-style: italic;
            background: rgba(79, 195, 247, 0.08);
            padding: 1.5rem;
            border-radius: 0 10px 10px 0;
        }
        ul, ol {
            margin: 1.5rem 0 1.5rem 2rem;
        }
        li {
            margin-bottom: 0.8rem;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .img-container {
            margin: 2.5rem auto;
            text-align: center;
            max-width: 800px;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
        }
        .img-caption {
            font-size: 0.95rem;
            color: #a0c8e0;
            margin-top: 0.8rem;
            font-style: italic;
        }
        .feature-box {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 1.5rem;
            margin: 2.5rem 0;
        }
        .feature-card {
            background: linear-gradient(145deg, #1c3b5e, #152a46);
            padding: 1.8rem;
            border-radius: 12px;
            border-top: 4px solid #ffcc00;
            transition: transform 0.4s, box-shadow 0.4s;
        }
        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.4);
        }
        .feature-icon {
            font-size: 2.5rem;
            color: #4fc3f7;
            margin-bottom: 1rem;
        }
        .interactive-module {
            background: rgba(30, 50, 80, 0.9);
            padding: 2.5rem;
            border-radius: 15px;
            margin: 3rem 0;
            border: 2px solid #2a4a6e;
        }
        .module-title {
            color: #ffcc00;
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
        }
        input, textarea, select {
            width: 100%;
            padding: 0.9rem;
            border-radius: 8px;
            border: 1px solid #3a5a7a;
            background: rgba(18, 35, 56, 0.8);
            color: #e0f7ff;
            font-size: 1rem;
        }
        button {
            background: linear-gradient(90deg, #4fc3f7, #2979ff);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 8px;
            font-weight: bold;
            cursor: pointer;
            transition: all 0.3s;
            font-size: 1.1rem;
        }
        button:hover {
            background: linear-gradient(90deg, #29b6f6, #1565c0);
            box-shadow: 0 0 15px rgba(79, 195, 247, 0.5);
        }
        .star-rating {
            display: flex;
            gap: 10px;
            font-size: 2rem;
            color: #555;
            margin: 1rem 0;
        }
        .star-rating .star {
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating .star:hover,
        .star-rating .star.active {
            color: #ffcc00;
        }
        footer {
            background: rgba(8, 18, 33, 0.95);
            padding: 3rem 0 2rem;
            margin-top: 4rem;
            border-top: 2px solid #2a4a6e;
        }
        .footer-content {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section {
            flex: 1;
            min-width: 250px;
        }
        .footer-section h3 {
            color: #4fc3f7;
            margin-bottom: 1.5rem;
            font-size: 1.5rem;
        }
        friend-link {
            display: block;
            background: rgba(255, 255, 255, 0.05);
            padding: 0.8rem 1rem;
            margin-bottom: 0.8rem;
            border-radius: 6px;
            border-left: 3px solid #4fc3f7;
            transition: all 0.3s;
        }
        friend-link:hover {
            background: rgba(79, 195, 247, 0.15);
            transform: translateX(5px);
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid #2a4a6e;
            color: #a0c8e0;
            font-size: 0.9rem;
        }
        .update-time {
            color: #ffcc00;
            font-weight: bold;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.7rem; }
            h2 { font-size: 2.1rem; }
            .nav-links {
                position: fixed;
                top: 85px;
                right: -100%;
                flex-direction: column;
                background: rgba(12, 26, 45, 0.98);
                width: 280px;
                padding: 2rem;
                border-radius: 0 0 0 15px;
                transition: right 0.5s ease;
                box-shadow: -5px 5px 15px rgba(0,0,0,0.5);
            }
            .nav-links.active {
                right: 0;
            }
            .hamburger {
                display: block;
            }
        }
        @media (max-width: 768px) {
            .container { padding: 0 15px; }
            section { padding: 1.5rem; }
            h1 { font-size: 2.3rem; }
            h2 { font-size: 1.9rem; }
            .feature-box { grid-template-columns: 1fr; }
            .interactive-module { padding: 1.5rem; }
            .footer-content { flex-direction: column; }
        }