* {
            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: #f0f8ff;
            line-height: 1.7;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            color: #4fc3f7;
            text-decoration: none;
            transition: color 0.3s ease, text-shadow 0.3s ease;
        }
        a:hover {
            color: #ffeb3b;
            text-shadow: 0 0 8px rgba(255, 235, 59, 0.5);
        }
        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;
        }
        .text-center { text-align: center; }
        .bold { font-weight: 800; }
        .highlight {
            background: linear-gradient(90deg, transparent 0%, rgba(255, 215, 0, 0.15) 50%, transparent 100%);
            padding: 3px 10px;
            border-left: 4px solid #ffd700;
        }
        .emoji { margin-right: 8px; }
        .site-header {
            background: rgba(12, 26, 45, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 2px solid #ffd700;
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 15px 0;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            background: linear-gradient(to right, #ffd700, #ff8c00, #ff4500);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-shadow: 0 2px 10px rgba(255, 215, 0, 0.3);
            letter-spacing: 1px;
        }
        .my-logo a { color: inherit; }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 25px;
        }
        .main-nav a {
            font-weight: 600;
            padding: 8px 12px;
            border-radius: 6px;
        }
        .main-nav a:hover {
            background: rgba(79, 195, 247, 0.15);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: #ffd700;
        }
        .breadcrumb {
            padding: 15px 0;
            background: rgba(255, 255, 255, 0.05);
            margin-bottom: 30px;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 10px;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '>';
            margin-left: 10px;
            color: #aaa;
        }
        .main-content {
            flex: 1;
            padding: 30px 0;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
        }
        article {
            background: rgba(255, 255, 255, 0.05);
            border-radius: 15px;
            padding: 40px;
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
        }
        h1 {
            font-size: 3rem;
            margin-bottom: 25px;
            color: #ffd700;
            line-height: 1.2;
            border-bottom: 3px solid #1a3a5f;
            padding-bottom: 15px;
        }
        h2 {
            font-size: 2.2rem;
            margin: 40px 0 20px;
            color: #4fc3f7;
            padding-left: 15px;
            border-left: 5px solid #ff8c00;
        }
        h3 {
            font-size: 1.7rem;
            margin: 30px 0 15px;
            color: #a5d6ff;
        }
        h4 {
            font-size: 1.3rem;
            margin: 25px 0 12px;
            color: #c8e6ff;
        }
        p {
            margin-bottom: 22px;
            font-size: 1.1rem;
            text-align: justify;
        }
        .intro {
            font-size: 1.3rem;
            color: #ffeb3b;
            margin-bottom: 35px;
            padding: 20px;
            background: rgba(26, 58, 95, 0.6);
            border-radius: 10px;
        }
        .featured-img {
            margin: 35px auto;
            max-width: 800px;
        }
        .caption {
            text-align: center;
            font-style: italic;
            color: #aaa;
            margin-top: 10px;
            font-size: 0.95rem;
        }
        .info-box {
            background: linear-gradient(145deg, rgba(21, 101, 192, 0.2), rgba(13, 71, 161, 0.2));
            border-left: 5px solid #2196f3;
            padding: 25px;
            margin: 30px 0;
            border-radius: 0 10px 10px 0;
        }
        .quote {
            font-size: 1.4rem;
            font-style: italic;
            color: #ffcc80;
            padding: 25px;
            border-left: 8px solid #ff9800;
            background: rgba(255, 152, 0, 0.08);
            margin: 35px 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            margin: 30px 0;
        }
        .stat-card {
            background: rgba(255, 255, 255, 0.08);
            padding: 25px;
            border-radius: 10px;
            text-align: center;
            border: 1px solid rgba(255, 215, 0, 0.3);
            transition: transform 0.3s ease, border-color 0.3s ease;
        }
        .stat-card:hover {
            transform: translateY(-5px);
            border-color: #ffd700;
        }
        .stat-card i {
            font-size: 3rem;
            color: #ffd700;
            margin-bottom: 15px;
        }
        .sidebar {
            background: rgba(255, 255, 255, 0.05);
            border-radius: 15px;
            padding: 25px;
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .sidebar h3 {
            color: #ffd700;
            margin-top: 0;
            border-bottom: 2px solid #1a3a5f;
            padding-bottom: 10px;
        }
        .sidebar ul {
            list-style: none;
            margin-bottom: 30px;
        }
        .sidebar li {
            margin-bottom: 12px;
            padding-left: 20px;
            position: relative;
        }
        .sidebar li:before {
            content: '🎯';
            position: absolute;
            left: 0;
        }
        .interaction-module {
            background: rgba(26, 58, 95, 0.7);
            border-radius: 12px;
            padding: 25px;
            margin: 35px 0;
            border: 1px solid rgba(79, 195, 247, 0.4);
        }
        .module-title {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 20px;
            color: #4fc3f7;
        }
        .module-title i { font-size: 1.8rem; }
        .form-group {
            margin-bottom: 20px;
        }
        label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: #c8e6ff;
        }
        input, textarea, select {
            width: 100%;
            padding: 14px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid #4fc3f7;
            border-radius: 8px;
            color: white;
            font-size: 1rem;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #ffeb3b;
            box-shadow: 0 0 10px rgba(255, 235, 59, 0.3);
        }
        button {
            background: linear-gradient(to right, #ff8c00, #ffd700);
            color: #0c1a2d;
            border: none;
            padding: 15px 30px;
            font-size: 1.1rem;
            font-weight: bold;
            border-radius: 8px;
            cursor: pointer;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        button:hover {
            transform: scale(1.05);
            box-shadow: 0 5px 15px rgba(255, 215, 0, 0.5);
        }
        .star-rating {
            display: flex;
            gap: 10px;
            font-size: 2rem;
            margin: 15px 0;
            color: #ccc;
            justify-content: center;
        }
        .star-rating .star {
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating .star:hover,
        .star-rating .star.active {
            color: #ffd700;
        }
        .site-footer {
            background: #0a1520;
            border-top: 3px solid #ffd700;
            padding: 40px 0 20px;
            margin-top: 60px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 30px;
        }
        .footer-section h4 {
            color: #ffd700;
            margin-bottom: 20px;
            font-size: 1.4rem;
        }
        friend-link {
            display: block;
            margin-bottom: 12px;
            padding: 10px 15px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 6px;
            transition: background 0.3s;
        }
        friend-link:hover {
            background: rgba(255, 215, 0, 0.15);
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #2a4365;
            color: #aaa;
            font-size: 0.9rem;
        }
        .update-time {
            color: #ff9800;
            font-weight: bold;
            margin-top: 10px;
        }
        @media (max-width: 768px) {
            .header-container { flex-wrap: wrap; }
            .hamburger {
                display: block;
            }
            .main-nav {
                width: 100%;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.5s ease;
            }
            .main-nav.active {
                max-height: 300px;
                margin-top: 20px;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 10px;
            }
            h1 { font-size: 2.3rem; }
            h2 { font-size: 1.9rem; }
            article, .sidebar { padding: 25px; }
            .content-grid { gap: 25px; }
        }