* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.8;
            color: #333;
            background: linear-gradient(135deg, #0a0a2a 0%, #1a1a3a 100%);
            color: #e0e0ff;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a { color: #4dabf7; text-decoration: none; transition: color 0.3s ease; }
        a:hover { color: #ff6b8b; }
        img { max-width: 100%; height: auto; display: block; }
        .site-header {
            background: rgba(10, 10, 40, 0.95);
            padding: 1rem 2rem;
            position: sticky;
            top: 0;
            z-index: 1000;
            backdrop-filter: blur(10px);
            border-bottom: 2px solid #ff6b8b;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1400px;
            margin: 0 auto;
        }
        .my-logo {
            font-family: 'Arial Black', sans-serif;
            font-size: 2.2rem;
            font-weight: 900;
            background: linear-gradient(90deg, #ff6b8b, #4dabf7);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-shadow: 0 2px 5px rgba(0,0,0,0.3);
        }
        .my-logo:hover { transform: scale(1.05); }
        .main-nav { display: flex; align-items: center; }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .nav-list a {
            font-weight: 600;
            font-size: 1.1rem;
            padding: 0.5rem 1rem;
            border-radius: 20px;
        }
        .nav-list a:hover {
            background: rgba(255, 107, 139, 0.2);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: #4dabf7;
        }
        .breadcrumb {
            padding: 1rem 2rem;
            background: rgba(20, 20, 60, 0.8);
            font-size: 0.9rem;
        }
        .breadcrumb a { color: #a5d8ff; }
        .main-content {
            flex: 1;
            max-width: 1400px;
            margin: 2rem auto;
            padding: 0 2rem;
            background: rgba(25, 25, 50, 0.9);
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.5);
            overflow: hidden;
        }
        article { padding: 2rem; }
        h1 {
            font-size: 3.5rem;
            color: #ff6b8b;
            text-align: center;
            margin-bottom: 1.5rem;
            text-shadow: 0 4px 8px rgba(0,0,0,0.7);
        }
        h2 {
            font-size: 2.5rem;
            color: #4dabf7;
            margin: 2.5rem 0 1rem;
            border-left: 5px solid #ff6b8b;
            padding-left: 1rem;
        }
        h3 {
            font-size: 2rem;
            color: #a5d8ff;
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.5rem;
            color: #c5c5ff;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.2rem;
        }
        .highlight {
            background: rgba(255, 107, 139, 0.1);
            border-left: 4px solid #ff6b8b;
            padding: 1rem;
            margin: 1.5rem 0;
            border-radius: 0 10px 10px 0;
        }
        .content-img {
            float: right;
            margin: 1rem 0 1rem 2rem;
            border-radius: 10px;
            border: 3px solid #4dabf7;
            max-width: 500px;
            box-shadow: 0 8px 16px rgba(0,0,0,0.6);
        }
        .content-img:hover { transform: rotate(2deg) scale(1.02); }
        .update-time {
            text-align: right;
            font-style: italic;
            color: #aaa;
            margin-bottom: 2rem;
        }
        .features {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin: 3rem 0;
        }
        .feature-box {
            background: rgba(40, 40, 80, 0.8);
            padding: 2rem;
            border-radius: 15px;
            border: 2px solid #4dabf7;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .feature-box:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 25px rgba(0,0,0,0.5);
        }
        .feature-box h3 { text-align: center; }
        input, textarea, select {
            width: 100%;
            padding: 0.8rem;
            margin: 0.5rem 0 1rem;
            border: 1px solid #4dabf7;
            border-radius: 8px;
            background: rgba(10, 10, 30, 0.8);
            color: #e0e0ff;
            font-size: 1rem;
        }
        button {
            background: linear-gradient(90deg, #ff6b8b, #4dabf7);
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 25px;
            cursor: pointer;
            font-weight: bold;
            font-size: 1rem;
            transition: all 0.3s ease;
        }
        button:hover {
            background: linear-gradient(90deg, #4dabf7, #ff6b8b);
            transform: scale(1.05);
        }
        .site-footer {
            background: rgba(10, 10, 40, 0.95);
            padding: 3rem 2rem;
            margin-top: 3rem;
            border-top: 2px solid #ff6b8b;
        }
        .footer-container {
            max-width: 1400px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }
        .footer-section h3 { color: #ff6b8b; margin-bottom: 1rem; }
        friend-link {
            display: block;
            margin: 0.5rem 0;
            padding: 0.5rem;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 5px;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid #444;
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .header-container { flex-wrap: wrap; }
            .nav-list {
                display: none;
                flex-direction: column;
                width: 100%;
                background: rgba(10, 10, 40, 0.98);
                position: absolute;
                top: 100%;
                left: 0;
                padding: 1rem;
                border-top: 2px solid #4dabf7;
            }
            .nav-list.active { display: flex; }
            .hamburger { display: block; }
            h1 { font-size: 2.5rem; }
            h2 { font-size: 2rem; }
            .content-img {
                float: none;
                margin: 1rem auto;
                max-width: 100%;
            }
            .main-content { padding: 0 1rem; }
            article { padding: 1.5rem; }
        }