* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background: linear-gradient(135deg, #0c1a2d 0%, #1a3a5f 100%);
            color: #e0e7ff;
            line-height: 1.7;
            min-height: 100vh;
            padding-bottom: 40px;
        }
        a {
            color: #4dabf7;
            text-decoration: none;
            transition: color 0.3s ease, text-shadow 0.3s ease;
        }
        a:hover {
            color: #74c0fc;
            text-shadow: 0 0 8px rgba(116, 192, 252, 0.5);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 8px;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: rgba(12, 26, 45, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 2px solid #2d4a7a;
            padding: 15px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            background: linear-gradient(90deg, #ff6b6b, #4dabf7, #20c997);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
            letter-spacing: 1px;
        }
        .my-logo:hover {
            transform: scale(1.03);
        }
        .breadcrumb {
            padding: 15px 0;
            font-size: 0.9rem;
            color: #8fa3c9;
        }
        .breadcrumb a {
            color: #8fa3c9;
        }
        .breadcrumb a:hover {
            color: #4dabf7;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 25px;
        }
        .main-nav a {
            color: #c3d4ff;
            font-weight: 600;
            padding: 8px 5px;
            border-bottom: 2px solid transparent;
        }
        .main-nav a:hover,
        .main-nav a.active {
            color: #74c0fc;
            border-bottom-color: #74c0fc;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: #4dabf7;
            cursor: pointer;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            margin-top: 30px;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        article {
            background: rgba(22, 40, 65, 0.8);
            border-radius: 15px;
            padding: 30px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
            border: 1px solid #2d4a7a;
        }
        h1 {
            font-size: 2.8rem;
            color: #ffd43b;
            margin-bottom: 20px;
            line-height: 1.2;
            text-shadow: 0 2px 5px rgba(0, 0, 0, 0.5);
            border-bottom: 3px solid #2d4a7a;
            padding-bottom: 15px;
        }
        h2 {
            font-size: 2rem;
            color: #74c0fc;
            margin: 35px 0 15px;
            padding-bottom: 10px;
            border-bottom: 2px dashed #3a5a8a;
        }
        h3 {
            font-size: 1.6rem;
            color: #20c997;
            margin: 25px 0 10px;
        }
        h4 {
            font-size: 1.3rem;
            color: #ffa94d;
            margin: 20px 0 10px;
        }
        p {
            margin-bottom: 20px;
            font-size: 1.1rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.3rem;
            color: #b3d9ff;
            font-weight: 500;
            background: rgba(45, 74, 122, 0.3);
            padding: 20px;
            border-left: 5px solid #4dabf7;
            border-radius: 0 10px 10px 0;
            margin-bottom: 30px;
        }
        strong {
            color: #ffd43b;
            font-weight: 700;
        }
        em {
            color: #ffa94d;
            font-style: italic;
        }
        .highlight {
            background: rgba(255, 212, 59, 0.15);
            padding: 3px 8px;
            border-radius: 4px;
            font-weight: bold;
        }
        ul, ol {
            margin-left: 25px;
            margin-bottom: 20px;
        }
        li {
            margin-bottom: 10px;
        }
        .code-box {
            background: linear-gradient(145deg, #0f1e35, #162841);
            border: 2px solid #4dabf7;
            border-radius: 10px;
            padding: 25px;
            margin: 25px 0;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
        }
        .code-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px;
            background: rgba(32, 55, 92, 0.6);
            border-radius: 8px;
            margin-bottom: 12px;
            border-left: 5px solid #20c997;
            transition: transform 0.3s ease;
        }
        .code-item:hover {
            transform: translateX(10px);
            background: rgba(32, 55, 92, 0.9);
        }
        .code-text {
            font-family: 'Courier New', monospace;
            font-size: 1.4rem;
            font-weight: bold;
            color: #ffd43b;
            letter-spacing: 1px;
        }
        .reward {
            color: #ffa94d;
            font-weight: 600;
        }
        .functional-box {
            background: rgba(32, 55, 92, 0.7);
            border-radius: 10px;
            padding: 25px;
            margin: 30px 0;
            border: 1px solid #3a5a8a;
        }
        .form-group {
            margin-bottom: 20px;
        }
        label {
            display: block;
            margin-bottom: 8px;
            color: #b3d9ff;
            font-weight: 600;
        }
        input, textarea, select {
            width: 100%;
            padding: 12px 15px;
            border-radius: 8px;
            border: 1px solid #3a5a8a;
            background: rgba(12, 26, 45, 0.8);
            color: #e0e7ff;
            font-size: 1rem;
        }
        input:focus, textarea:focus {
            outline: none;
            border-color: #4dabf7;
            box-shadow: 0 0 10px rgba(77, 171, 247, 0.5);
        }
        button {
            background: linear-gradient(90deg, #20c997, #0ca678);
            color: white;
            border: none;
            padding: 14px 25px;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        button:hover {
            background: linear-gradient(90deg, #0ca678, #099268);
            transform: translateY(-3px);
            box-shadow: 0 7px 15px rgba(32, 201, 151, 0.4);
        }
        .btn-secondary {
            background: linear-gradient(90deg, #4dabf7, #339af0);
        }
        .btn-secondary:hover {
            background: linear-gradient(90deg, #339af0, #228be6);
            box-shadow: 0 7px 15px rgba(77, 171, 247, 0.4);
        }
        aside {
            background: rgba(22, 40, 65, 0.8);
            border-radius: 15px;
            padding: 25px;
            height: fit-content;
            border: 1px solid #2d4a7a;
        }
        .widget {
            margin-bottom: 35px;
        }
        .widget-title {
            color: #ffa94d;
            font-size: 1.4rem;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #3a5a8a;
        }
        .site-footer {
            margin-top: 50px;
            padding-top: 30px;
            border-top: 2px solid #2d4a7a;
            text-align: center;
            color: #8fa3c9;
            font-size: 0.95rem;
        }
        friend-link {
            display: block;
            margin: 20px 0;
            padding: 15px;
            background: rgba(45, 74, 122, 0.4);
            border-radius: 8px;
        }
        friend-link a {
            display: inline-block;
            margin: 0 10px;
            color: #b3d9ff;
        }
        friend-link a:hover {
            color: #ffd43b;
        }
        .copyright {
            margin-top: 25px;
            font-size: 0.9rem;
            color: #6c87b5;
        }
        .text-center { text-align: center; }
        .mt-4 { margin-top: 40px; }
        .mb-4 { margin-bottom: 40px; }
        .updated-time {
            color: #20c997;
            font-weight: bold;
            background: rgba(32, 201, 151, 0.1);
            padding: 5px 10px;
            border-radius: 5px;
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
                order: 2;
            }
            .main-nav {
                display: none;
                width: 100%;
                order: 3;
                margin-top: 15px;
            }
            .main-nav.active {
                display: block;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 10px;
            }
            .main-nav a {
                display: block;
                padding: 12px;
                background: rgba(45, 74, 122, 0.5);
                border-radius: 8px;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            .code-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .code-text {
                font-size: 1.2rem;
            }
        }