:root {
            --miku-pink: #e8588a;
            --miku-blue: #3ba0c9;
            --miku-dark: #1a1a2e;
            --miku-light: #f0f4f8;
            --text-primary: #212529;
            --text-secondary: #495057;
            --white: #ffffff;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.06);
            --border-radius: 12px;
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--miku-light);
            overflow-x: hidden;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: var(--white);
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 16px 0;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 900;
            color: var(--miku-pink);
            text-decoration: none;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .my-logo:hover {
            color: var(--miku-blue);
        }
        .my-logo i {
            font-size: 1.8rem;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 24px;
        }
        .main-nav a {
            text-decoration: none;
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.9rem;
            transition: var(--transition);
            padding: 6px 12px;
            border-radius: 6px;
        }
        .main-nav a:hover {
            color: var(--miku-pink);
            background: rgba(232, 88, 138, 0.08);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.4rem;
            color: var(--text-primary);
            cursor: pointer;
            padding: 4px 8px;
        }
        .breadcrumb {
            background: var(--white);
            border-bottom: 1px solid #eee;
            padding: 10px 0;
            font-size: 0.85rem;
        }
        .breadcrumb-inner {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
        }
        .breadcrumb a {
            color: var(--miku-blue);
            text-decoration: none;
            transition: var(--transition);
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb .sep {
            color: #aaa;
            font-size: 0.75rem;
        }
        .breadcrumb .current {
            color: var(--text-secondary);
            font-weight: 500;
        }
        .hero {
            background: linear-gradient(135deg, #fce4ec 0%, #e8f4f8 50%, #fff3f6 100%);
            padding: 60px 0 40px;
            text-align: center;
        }
        .hero h1 {
            font-size: 2.4rem;
            font-weight: 900;
            color: var(--miku-dark);
            margin-bottom: 16px;
            line-height: 1.2;
        }
        .hero p {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 720px;
            margin: 0 auto 24px;
        }
        .hero-meta {
            display: flex;
            justify-content: center;
            gap: 24px;
            flex-wrap: wrap;
            font-size: 0.9rem;
            color: var(--text-secondary);
        }
        .hero-meta i {
            color: var(--miku-pink);
            margin-right: 4px;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 280px 1fr;
            gap: 40px;
            margin: 40px auto;
        }
        .sidebar {
            position: sticky;
            top: 90px;
            align-self: start;
            background: var(--white);
            border-radius: var(--border-radius);
            box-shadow: var(--shadow-sm);
            padding: 24px;
            font-size: 0.9rem;
        }
        .sidebar h3 {
            font-size: 1rem;
            margin-bottom: 16px;
            color: var(--miku-dark);
            border-bottom: 2px solid var(--miku-pink);
            padding-bottom: 8px;
        }
        .sidebar ul {
            list-style: none;
        }
        .sidebar li {
            margin-bottom: 8px;
        }
        .sidebar a {
            text-decoration: none;
            color: var(--text-secondary);
            transition: var(--transition);
            display: block;
            padding: 4px 0;
            border-left: 2px solid transparent;
            padding-left: 12px;
        }
        .sidebar a:hover {
            color: var(--miku-pink);
            border-left-color: var(--miku-pink);
        }
        .main-content {
            background: var(--white);
            border-radius: var(--border-radius);
            box-shadow: var(--shadow-sm);
            padding: 40px;
            max-width: 100%;
        }
        .main-content h2 {
            font-size: 1.8rem;
            color: var(--miku-dark);
            margin: 40px 0 16px;
            padding-bottom: 8px;
            border-bottom: 3px solid var(--miku-pink);
            line-height: 1.3;
        }
        .main-content h2:first-child {
            margin-top: 0;
        }
        .main-content h3 {
            font-size: 1.3rem;
            color: var(--miku-blue);
            margin: 28px 0 12px;
            line-height: 1.4;
        }
        .main-content h4 {
            font-size: 1.05rem;
            color: var(--miku-dark);
            margin: 20px 0 10px;
            font-weight: 600;
        }
        .main-content p {
            margin-bottom: 16px;
            color: var(--text-secondary);
        }
        .main-content p strong {
            color: var(--text-primary);
            font-weight: 600;
        }
        .highlight-box {
            background: #f8f9fa;
            border-left: 4px solid var(--miku-pink);
            padding: 16px 20px;
            margin: 24px 0;
            border-radius: 0 8px 8px 0;
        }
        .info-box {
            background: #e8f4f8;
            border-left: 4px solid var(--miku-blue);
            padding: 16px 20px;
            margin: 24px 0;
            border-radius: 0 8px 8px 0;
        }
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            margin: 24px 0;
        }
        .stat-card {
            background: var(--miku-light);
            border-radius: var(--border-radius);
            padding: 20px;
            text-align: center;
        }
        .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--miku-pink);
        }
        .stat-label {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin-top: 4px;
        }
        .content-image {
            width: 100%;
            height: auto;
            border-radius: var(--border-radius);
            margin: 24px 0;
            box-shadow: var(--shadow-sm);
        }
        figure {
            margin: 24px 0;
        }
        figcaption {
            font-size: 0.85rem;
            color: var(--text-secondary);
            text-align: center;
            margin-top: 8px;
            font-style: italic;
        }
        .search-box {
            background: var(--miku-light);
            border-radius: var(--border-radius);
            padding: 20px;
            margin: 24px 0;
        }
        .search-box form {
            display: flex;
            gap: 10px;
        }
        .search-box input[type="text"] {
            flex: 1;
            padding: 10px 16px;
            border: 2px solid #ddd;
            border-radius: 6px;
            font-size: 0.95rem;
            transition: var(--transition);
        }
        .search-box input[type="text"]:focus {
            outline: none;
            border-color: var(--miku-blue);
        }
        .search-box button {
            background: var(--miku-pink);
            color: white;
            border: none;
            padding: 10px 24px;
            border-radius: 6px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-box button:hover {
            background: #d63e6f;
        }
        .user-interaction {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin: 40px 0;
        }
        .comment-form,
        .rating-form {
            background: var(--miku-light);
            border-radius: var(--border-radius);
            padding: 24px;
        }
        .comment-form h3,
        .rating-form h3 {
            margin-top: 0;
            color: var(--miku-dark);
            font-size: 1.1rem;
            margin-bottom: 16px;
        }
        .comment-form textarea {
            width: 100%;
            min-height: 100px;
            padding: 12px;
            border: 2px solid #ddd;
            border-radius: 6px;
            font-family: inherit;
            font-size: 0.9rem;
            resize: vertical;
            margin-bottom: 12px;
        }
        .comment-form input[type="text"],
        .rating-form select {
            width: 100%;
            padding: 10px 12px;
            border: 2px solid #ddd;
            border-radius: 6px;
            font-size: 0.9rem;
            margin-bottom: 12px;
        }
        .comment-form button,
        .rating-form button {
            background: var(--miku-pink);
            color: white;
            border: none;
            padding: 10px 24px;
            border-radius: 6px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .comment-form button:hover,
        .rating-form button:hover {
            background: #d63e6f;
        }
        .star-rating {
            font-size: 1.5rem;
            color: #ffc107;
            margin-bottom: 12px;
        }
        .site-footer {
            background: var(--miku-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 40px 0 20px;
            margin-top: 60px;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 30px;
        }
        .footer-brand p {
            font-size: 0.9rem;
            margin-top: 12px;
        }
        .footer-links h4,
        .footer-friend h4 {
            color: white;
            margin-bottom: 14px;
            font-size: 1rem;
        }
        .footer-links a,
        .footer-friend a {
            display: block;
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            font-size: 0.9rem;
            margin-bottom: 8px;
            transition: var(--transition);
        }
        .footer-links a:hover,
        .footer-friend a:hover {
            color: var(--miku-pink);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom .copyright {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        friend-link {
            display: block;
            margin-top: 8px;
            font-size: 0.9rem;
        }
        friend-link a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
        }
        friend-link a:hover {
            color: var(--miku-pink);
        }
        .toc {
            background: var(--miku-light);
            border-radius: var(--border-radius);
            padding: 20px 24px;
            margin: 24px 0;
            border: 1px solid #eee;
        }
        .toc h4 {
            margin-top: 0;
            color: var(--miku-dark);
        }
        .toc ul {
            padding-left: 20px;
            columns: 2;
            column-gap: 30px;
        }
        .toc li {
            margin-bottom: 6px;
            font-size: 0.9rem;
        }
        .toc a {
            color: var(--miku-blue);
            text-decoration: none;
        }
        .toc a:hover {
            text-decoration: underline;
        }
        blockquote {
            background: var(--miku-light);
            border-left: 4px solid var(--miku-blue);
            padding: 16px 24px;
            margin: 24px 0;
            border-radius: 0 8px 8px 0;
            font-style: italic;
            color: var(--text-secondary);
            position: relative;
        }
        blockquote::before {
            content: '\201C';
            font-size: 3rem;
            color: var(--miku-blue);
            position: absolute;
            left: 8px;
            top: -8px;
            font-family: Georgia, serif;
            opacity: 0.3;
        }
        blockquote cite {
            display: block;
            margin-top: 8px;
            font-style: normal;
            font-weight: 600;
            color: var(--text-primary);
            font-size: 0.9rem;
        }
        .text-center {
            text-align: center;
        }
        .mt-0 {
            margin-top: 0;
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .bullet-list {
            margin: 16px 0 16px 20px;
        }
        .bullet-list li {
            margin-bottom: 6px;
            color: var(--text-secondary);
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                order: -1;
                margin-bottom: 20px;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 768px) {
            .main-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                gap: 0;
                padding: 12px 0;
                background: white;
                border-radius: 0 0 12px 12px;
                box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 12px 16px;
                width: 100%;
                text-align: left;
            }
            .nav-toggle {
                display: block;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .main-content {
                padding: 24px;
            }
            .toc ul {
                columns: 1;
            }
            .user-interaction {
                grid-template-columns: 1fr;
            }
            .search-box form {
                flex-direction: column;
            }
        }
        @media (max-width: 480px) {
            .hero {
                padding: 32px 0 24px;
            }
            .hero h1 {
                font-size: 1.4rem;
            }
            .main-content {
                padding: 16px;
                border-radius: var(--border-radius);
            }
            .main-content h2 {
                font-size: 1.3rem;
            }
            .main-content h3 {
                font-size: 1.1rem;
            }
            .stat-grid {
                grid-template-columns: 1fr;
            }
        }