*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Helvetica Neue', Arial, sans-serif;
            background: #f4f6fb;
            color: #1a1a2e;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        a {
            color: #6c3fc9;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #4a2a8a;
            text-decoration: underline;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        h1 {
            font-size: 2.4rem;
            font-weight: 800;
            color: #1a1a2e;
            margin-bottom: 0.5rem;
            line-height: 1.2;
        }
        h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: #2d1b69;
            margin-top: 2.5rem;
            margin-bottom: 0.75rem;
            border-left: 5px solid #7c3aed;
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.35rem;
            font-weight: 600;
            color: #3b1f8e;
            margin-top: 1.8rem;
            margin-bottom: 0.5rem;
        }
        h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: #4a2a8a;
            margin-top: 1.2rem;
            margin-bottom: 0.3rem;
        }
        p {
            margin-bottom: 1rem;
            color: #2d2d44;
        }
        .text-muted {
            color: #6b7280;
            font-size: 0.9rem;
        }
        .text-small {
            font-size: 0.85rem;
        }
        .site-header {
            background: linear-gradient(135deg, #1a1a2e 0%, #2d1b69 100%);
            color: #fff;
            padding: 0 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding: 0.9rem 20px;
            max-width: 1200px;
            margin: 0 auto;
        }
        .my-logo {
            font-size: 1.7rem;
            font-weight: 800;
            color: #fff;
            background: linear-gradient(135deg, #a78bfa, #7c3aed);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
            text-decoration: none !important;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .my-logo i {
            -webkit-text-fill-color: #a78bfa;
            font-size: 1.5rem;
        }
        .my-logo:hover {
            opacity: 0.9;
            text-decoration: none !important;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 1.2rem;
            align-items: center;
            flex-wrap: wrap;
        }
        .nav-list a {
            color: #e0d4ff;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.4rem 0.8rem;
            border-radius: 8px;
            transition: background 0.2s, color 0.2s;
            text-decoration: none;
        }
        .nav-list a:hover {
            background: rgba(167, 139, 250, 0.2);
            color: #fff;
            text-decoration: none;
        }
        .nav-list a.active {
            background: #7c3aed;
            color: #fff;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 4px;
            background: none;
            border: none;
        }
        .hamburger span {
            width: 28px;
            height: 3px;
            background: #fff;
            border-radius: 4px;
            transition: 0.3s;
        }
        .nav-toggle {
            display: none;
        }
        .breadcrumb {
            background: #ffffff;
            padding: 0.7rem 20px;
            border-bottom: 1px solid #e5e7eb;
            font-size: 0.85rem;
            max-width: 1200px;
            margin: 0 auto;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem 0.8rem;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.8rem;
            color: #9ca3af;
        }
        .breadcrumb a {
            color: #6c3fc9;
        }
        .breadcrumb .current {
            color: #6b7280;
        }
        .hero {
            background: linear-gradient(135deg, #1a1a2e 0%, #2d1b69 50%, #1a1a2e 100%);
            color: #fff;
            padding: 3rem 20px 2.5rem;
            text-align: center;
            border-radius: 0 0 30px 30px;
            margin-bottom: 2rem;
        }
        .hero h1 {
            color: #fff;
            font-size: 2.6rem;
            max-width: 900px;
            margin: 0 auto 0.8rem;
        }
        .hero p {
            color: #d4c4f0;
            font-size: 1.15rem;
            max-width: 750px;
            margin: 0 auto 1.2rem;
        }
        .hero .badge {
            display: inline-block;
            background: #7c3aed;
            padding: 0.3rem 1.2rem;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 0.8rem;
        }
        .hero .last-updated {
            color: #b4a0e0;
            font-size: 0.85rem;
            margin-top: 0.5rem;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            margin: 2rem 0;
        }
        .main-article {
            background: #fff;
            border-radius: 20px;
            padding: 2rem 2.2rem;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
        }
        .sidebar {
            background: #fff;
            border-radius: 20px;
            padding: 1.8rem 1.5rem;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
            height: fit-content;
            position: sticky;
            top: 100px;
        }
        .sidebar h3 {
            font-size: 1.2rem;
            margin-top: 0;
            border-bottom: 2px solid #ede9fe;
            padding-bottom: 0.6rem;
            margin-bottom: 1rem;
        }
        .sidebar ul {
            list-style: none;
        }
        .sidebar li {
            margin-bottom: 0.6rem;
        }
        .sidebar a {
            font-size: 0.92rem;
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 0.3rem 0;
        }
        .sidebar a i {
            width: 18px;
            color: #7c3aed;
        }
        .featured-image {
            margin: 1.8rem 0;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
        }
        .featured-image img {
            width: 100%;
            height: auto;
            aspect-ratio: 16/9;
            object-fit: cover;
            background: #e0d4ff;
        }
        .featured-image figcaption {
            padding: 0.8rem 1.2rem;
            background: #f9f7ff;
            font-size: 0.85rem;
            color: #4b5563;
            border-top: 1px solid #e5e7eb;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.5rem 0;
            border-radius: 12px;
            border: 1px solid #e5e7eb;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
        }
        th,
        td {
            padding: 0.75rem 1rem;
            text-align: left;
            border-bottom: 1px solid #e5e7eb;
        }
        th {
            background: #f0ebff;
            font-weight: 600;
            color: #2d1b69;
        }
        tr:last-child td {
            border-bottom: none;
        }
        tr:hover td {
            background: #faf8ff;
        }
        blockquote {
            background: #f0ebff;
            border-left: 4px solid #7c3aed;
            padding: 1.2rem 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 12px 12px 0;
            font-style: italic;
            color: #2d1b69;
        }
        blockquote cite {
            display: block;
            margin-top: 0.6rem;
            font-style: normal;
            font-weight: 600;
            font-size: 0.9rem;
            color: #4a2a8a;
        }
        .form-card {
            background: #f9f7ff;
            border: 1px solid #e0d4ff;
            border-radius: 16px;
            padding: 1.8rem 2rem;
            margin: 2rem 0;
        }
        .form-card h3 {
            margin-top: 0;
        }
        .form-group {
            margin-bottom: 1.2rem;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 0.3rem;
            color: #2d1b69;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 1px solid #d1d5db;
            border-radius: 10px;
            font-size: 0.95rem;
            font-family: inherit;
            background: #fff;
            transition: border 0.2s;
        }
        .form-group input:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: #7c3aed;
            box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.1);
        }
        .btn {
            display: inline-block;
            padding: 0.7rem 2rem;
            background: #7c3aed;
            color: #fff;
            border: none;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            font-family: inherit;
        }
        .btn:hover {
            background: #6c3fc9;
            transform: translateY(-1px);
        }
        .btn-secondary {
            background: #2d1b69;
        }
        .btn-secondary:hover {
            background: #1a1a2e;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 4px;
            margin: 0.5rem 0;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 1.8rem;
            color: #d1d5db;
            cursor: pointer;
            transition: color 0.15s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f59e0b;
        }
        .comment-item {
            padding: 1rem 0;
            border-bottom: 1px solid #e5e7eb;
        }
        .comment-item:last-child {
            border-bottom: none;
        }
        .comment-author {
            font-weight: 600;
            color: #2d1b69;
        }
        .comment-date {
            font-size: 0.8rem;
            color: #9ca3af;
            margin-left: 0.8rem;
        }
        .comment-text {
            margin-top: 0.3rem;
            color: #374151;
        }
        friend-link {
            display: block;
            background: #f0ebff;
            border-radius: 16px;
            padding: 1.5rem 2rem;
            margin: 2rem 0 0;
            font-style: normal;
            border: 1px solid #d4c4f0;
        }
        friend-link a {
            display: inline-block;
            margin: 0.3rem 0.6rem 0.3rem 0;
            padding: 0.2rem 0.8rem;
            background: #fff;
            border-radius: 20px;
            font-size: 0.9rem;
            color: #2d1b69;
            border: 1px solid #d4c4f0;
            transition: background 0.2s;
        }
        friend-link a:hover {
            background: #ede9fe;
            text-decoration: none;
        }
        .site-footer {
            background: #1a1a2e;
            color: #c4b5e0;
            padding: 2.5rem 20px 1.5rem;
            margin-top: 3rem;
            border-radius: 30px 30px 0 0;
        }
        .footer-inner {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2rem;
        }
        .footer-inner h4 {
            color: #fff;
            margin-top: 0;
            font-size: 1.1rem;
        }
        .footer-inner a {
            color: #b4a0e0;
        }
        .footer-inner a:hover {
            color: #fff;
        }
        .footer-copy {
            grid-column: 1 / -1;
            border-top: 1px solid #2d1b69;
            padding-top: 1.5rem;
            margin-top: 1.5rem;
            text-align: center;
            font-size: 0.85rem;
            color: #8b7aaa;
        }
        @media (max-width: 1024px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                order: 2;
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: flex;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                width: 100%;
                padding: 1rem 0 0.5rem;
                gap: 0.5rem;
                border-top: 1px solid rgba(255, 255, 255, 0.1);
                margin-top: 0.8rem;
            }
            .nav-list a {
                display: block;
                padding: 0.6rem 0.8rem;
            }
            .nav-toggle:checked~.nav-list {
                display: flex;
            }
            .header-inner {
                align-items: flex-start;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .hero p {
                font-size: 1rem;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            .main-article {
                padding: 1.2rem 1rem;
            }
            .form-card {
                padding: 1.2rem 1rem;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                text-align: center;
            }
            .sidebar {
                padding: 1.2rem 1rem;
            }
            .breadcrumb {
                font-size: 0.75rem;
                padding: 0.5rem 15px;
            }
        }
        @media (max-width: 480px) {
            .hero {
                padding: 2rem 15px 1.8rem;
            }
            .hero h1 {
                font-size: 1.5rem;
            }
            .container {
                padding: 0 12px;
            }
            .my-logo {
                font-size: 1.3rem;
            }
            .btn {
                width: 100%;
                text-align: center;
            }
            .star-rating label {
                font-size: 1.5rem;
            }
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mt-2 {
            margin-top: 2rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .gap-1 {
            gap: 1rem;
        }
        .flex {
            display: flex;
        }
        .flex-wrap {
            flex-wrap: wrap;
        }
        .items-center {
            align-items: center;
        }
        .text-center {
            text-align: center;
        }
        .highlight {
            background: #fef3c7;
            padding: 0.1rem 0.4rem;
            border-radius: 4px;
            font-weight: 600;
        }
        .tag {
            display: inline-block;
            background: #ede9fe;
            color: #2d1b69;
            padding: 0.2rem 0.8rem;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
        }
        .divider {
            border: none;
            border-top: 2px solid #ede9fe;
            margin: 2rem 0;
        }