* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-purple: #8a2be2;
            --secondary-pink: #ff4f8c;
            --dark-bg: #1a1a2e;
            --content-bg: #f8f7ff;
            --text-dark: #333;
            --text-light: #666;
            --accent-gold: #ffd700;
            --border-color: #e0d6ff;
            --shadow: 0 5px 15px rgba(138, 43, 226, 0.1);
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
            line-height: 1.7;
            color: var(--text-dark);
            background-color: var(--content-bg);
            overflow-x: hidden;
        }
        h1, h2, h3, h4 {
            font-family: 'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', 'Lucida Sans', Arial, sans-serif;
            color: var(--primary-purple);
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        h1 {
            font-size: 2.8rem;
            text-align: center;
            margin-top: 2rem;
            background: linear-gradient(90deg, var(--primary-purple), var(--secondary-pink));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        h2 {
            font-size: 2.2rem;
            border-left: 5px solid var(--secondary-pink);
            padding-left: 1rem;
            margin-top: 3rem;
        }
        h3 {
            font-size: 1.8rem;
            color: var(--dark-bg);
            margin-top: 2.5rem;
        }
        h4 {
            font-size: 1.4rem;
            color: var(--text-light);
            margin-top: 2rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: var(--dark-bg);
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: all 0.3s ease;
        }
        .my-logo:hover {
            color: var(--accent-gold);
            transform: scale(1.05);
        }
        .my-logo i {
            color: var(--secondary-pink);
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 30px;
            transition: all 0.3s ease;
        }
        .main-nav a:hover,
        .main-nav a.active {
            background-color: var(--primary-purple);
            color: white;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: white;
            border-bottom: 1px solid var(--border-color);
            margin-bottom: 2rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
        }
        .breadcrumb li {
            margin-right: 0.5rem;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin-left: 0.5rem;
            color: var(--primary-purple);
        }
        .breadcrumb a {
            color: var(--primary-purple);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            padding: 2rem 0;
        }
        .content-area {
            background: white;
            padding: 2.5rem;
            border-radius: 15px;
            box-shadow: var(--shadow);
        }
        .sidebar {
            background: white;
            padding: 1.5rem;
            border-radius: 15px;
            box-shadow: var(--shadow);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-bottom: 2px dashed var(--border-color);
            padding-bottom: 1.5rem;
            margin-bottom: 2rem;
            color: var(--text-light);
            font-size: 0.95rem;
        }
        .update-time {
            color: var(--secondary-pink);
            font-weight: bold;
        }
        .featured-image {
            width: 100%;
            height: auto;
            border-radius: 10px;
            margin: 2rem 0;
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
            transition: transform 0.5s ease;
        }
        .featured-image:hover {
            transform: scale(1.01);
        }
        .highlight-box {
            background: linear-gradient(135deg, #f8f7ff, #e8e2ff);
            border-left: 4px solid var(--accent-gold);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 10px 10px 0;
        }
        .highlight-box h4 {
            margin-top: 0;
            color: var(--primary-purple);
        }
        .link-list {
            background-color: #f0f5ff;
            padding: 1.5rem;
            border-radius: 10px;
            margin: 2rem 0;
        }
        .link-list ul {
            list-style: none;
            columns: 2;
        }
        .link-list li {
            margin-bottom: 0.8rem;
            break-inside: avoid;
        }
        .link-list a {
            color: var(--primary-purple);
            text-decoration: none;
            transition: color 0.3s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .link-list a:hover {
            color: var(--secondary-pink);
            text-decoration: underline;
        }
        .functional-box {
            background: white;
            border: 2px solid var(--border-color);
            border-radius: 10px;
            padding: 2rem;
            margin: 3rem 0;
            box-shadow: var(--shadow);
        }
        .functional-box h3 {
            margin-top: 0;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: var(--dark-bg);
        }
        input, textarea, select {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            font-family: inherit;
            font-size: 1rem;
            transition: border 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--primary-purple);
            box-shadow: 0 0 0 3px rgba(138, 43, 226, 0.1);
        }
        textarea {
            min-height: 120px;
            resize: vertical;
        }
        .rating-stars {
            display: flex;
            gap: 5px;
            margin: 1rem 0;
            direction: rtl;
        }
        .rating-stars input {
            display: none;
        }
        .rating-stars label {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.3s;
            margin-bottom: 0;
        }
        .rating-stars label:hover,
        .rating-stars label:hover ~ label,
        .rating-stars input:checked ~ label {
            color: var(--accent-gold);
        }
        .btn {
            background: linear-gradient(90deg, var(--primary-purple), var(--secondary-pink));
            color: white;
            border: none;
            padding: 0.9rem 2rem;
            border-radius: 50px;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            font-size: 1rem;
        }
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 15px rgba(138, 43, 226, 0.3);
        }
        footer {
            background-color: var(--dark-bg);
            color: white;
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h4 {
            color: white;
            margin-bottom: 1.5rem;
            font-size: 1.2rem;
        }
        .footer-section ul {
            list-style: none;
        }
        .footer-section li {
            margin-bottom: 0.8rem;
        }
        .footer-section a {
            color: #ccc;
            text-decoration: none;
            transition: color 0.3s;
        }
        .footer-section a:hover {
            color: white;
            text-decoration: underline;
        }
        friend-link {
            display: block;
            background: rgba(255,255,255,0.05);
            padding: 1rem;
            border-radius: 8px;
            margin-top: 1rem;
            border-left: 3px solid var(--secondary-pink);
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
            }
            .footer-content {
                grid-template-columns: repeat(2, 1fr);
            }
            h1 {
                font-size: 2.4rem;
            }
            h2 {
                font-size: 2rem;
            }
        }
        @media (max-width: 768px) {
            .main-nav {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background-color: var(--dark-bg);
                padding: 1rem;
                box-shadow: var(--shadow);
            }
            .main-nav.active {
                display: block;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 0.5rem;
            }
            .hamburger {
                display: block;
            }
            .header-container {
                padding: 0 15px;
            }
            .content-area {
                padding: 1.5rem;
            }
            .link-list ul {
                columns: 1;
            }
        }
        @media (max-width: 576px) {
            .footer-content {
                grid-template-columns: 1fr;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            .btn {
                width: 100%;
            }
        }
        .text-bold {
            font-weight: 800;
            color: var(--primary-purple);
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .quote {
            font-style: italic;
            border-left: 3px solid var(--accent-gold);
            padding-left: 1.5rem;
            margin: 2rem 0;
            color: var(--text-light);
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 900;
            color: var(--secondary-pink);
            display: block;
            line-height: 1;
        }
        .stat-label {
            font-size: 1rem;
            color: var(--text-light);
        }
        .tooltip {
            position: relative;
            border-bottom: 1px dotted var(--primary-purple);
            cursor: help;
        }
        .tooltip:hover::after {
            content: attr(data-tooltip);
            position: absolute;
            bottom: 100%;
            left: 50%;
            transform: translateX(-50%);
            background: var(--dark-bg);
            color: white;
            padding: 0.5rem 1rem;
            border-radius: 5px;
            white-space: nowrap;
            font-size: 0.9rem;
            z-index: 10;
        }