*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            background: #f4f4f9;
            color: #1a1a2e;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: #e10600;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover,
        a:focus {
            color: #b00500;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 8px;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.2;
            margin-top: 1.8rem;
            margin-bottom: 0.8rem;
            color: #0f0f1a;
        }
        h1 {
            font-size: 2.4rem;
            margin-top: 0.5rem;
        }
        h2 {
            font-size: 1.8rem;
            border-bottom: 3px solid #e10600;
            padding-bottom: 0.3rem;
        }
        h3 {
            font-size: 1.4rem;
            margin-top: 1.5rem;
        }
        h4 {
            font-size: 1.15rem;
            margin-top: 1.2rem;
            font-weight: 600;
            color: #2a2a3e;
        }
        p {
            margin-bottom: 1.2rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: #0f0f1a;
            color: #fff;
            padding: 0.8rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #e10600, #ff4d4d);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-decoration: none !important;
        }
        .my-logo:hover {
            opacity: 0.9;
            text-decoration: none;
        }
        .my-logo span {
            font-weight: 300;
            color: #ccc;
            -webkit-text-fill-color: #ccc;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 4px;
        }
        .hamburger span {
            display: block;
            width: 28px;
            height: 3px;
            background: #fff;
            border-radius: 4px;
            transition: 0.3s;
        }
        .main-nav {
            display: flex;
            gap: 0.2rem;
            flex-wrap: wrap;
            align-items: center;
        }
        .main-nav a {
            color: #ddd;
            padding: 0.5rem 0.9rem;
            border-radius: 6px;
            font-weight: 500;
            font-size: 0.95rem;
            transition: background 0.2s, color 0.2s;
            text-decoration: none;
        }
        .main-nav a:hover,
        .main-nav a:focus {
            background: #e10600;
            color: #fff;
            text-decoration: none;
        }
        .main-nav a.active {
            background: #e10600;
            color: #fff;
        }
        .breadcrumb {
            background: #e8e8f0;
            padding: 0.6rem 0;
            font-size: 0.9rem;
            color: #555;
        }
        .breadcrumb a {
            color: #e10600;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb span {
            margin: 0 6px;
            color: #888;
        }
        .hero {
            background: linear-gradient(135deg, #0f0f1a 0%, #1a1a2e 100%);
            color: #fff;
            padding: 3rem 0 2.5rem;
            text-align: center;
            margin-bottom: 2rem;
            border-bottom: 4px solid #e10600;
        }
        .hero h1 {
            color: #fff;
            font-size: 2.6rem;
            margin-bottom: 0.5rem;
            text-shadow: 0 2px 12px rgba(225, 6, 0, 0.3);
        }
        .hero p {
            font-size: 1.2rem;
            color: #ccc;
            max-width: 750px;
            margin: 0 auto;
        }
        .hero .meta {
            margin-top: 1rem;
            font-size: 0.95rem;
            color: #aaa;
        }
        .hero .meta i {
            margin-right: 4px;
        }
        .section {
            background: #fff;
            border-radius: 12px;
            padding: 2rem 2.2rem;
            margin-bottom: 2rem;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
        }
        .section-dark {
            background: #0f0f1a;
            color: #eee;
        }
        .section-dark h2,
        .section-dark h3,
        .section-dark h4 {
            color: #fff;
        }
        .featured-image {
            margin: 1.8rem 0;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
        }
        .featured-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }
        .featured-image figcaption {
            padding: 0.8rem 1rem;
            background: #f0f0f8;
            font-size: 0.9rem;
            color: #555;
            font-style: italic;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.5rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
        }
        th,
        td {
            padding: 0.75rem 1rem;
            border: 1px solid #ddd;
            text-align: left;
        }
        th {
            background: #e10600;
            color: #fff;
            font-weight: 600;
        }
        tr:nth-child(even) {
            background: #f9f9fc;
        }
        .form-group {
            margin-bottom: 1.2rem;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 0.3rem;
            color: #1a1a2e;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 1px solid #ccc;
            border-radius: 6px;
            font-size: 1rem;
            font-family: inherit;
            transition: border 0.2s;
            background: #fff;
        }
        .form-group input:focus,
        .form-group textarea:focus {
            border-color: #e10600;
            outline: none;
            box-shadow: 0 0 0 3px rgba(225, 6, 0, 0.15);
        }
        .btn {
            display: inline-block;
            padding: 0.7rem 1.8rem;
            background: #e10600;
            color: #fff;
            border: none;
            border-radius: 6px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            text-decoration: none;
        }
        .btn:hover {
            background: #b00500;
            transform: translateY(-1px);
            text-decoration: none;
        }
        .btn:active {
            transform: translateY(0);
        }
        .btn-secondary {
            background: #333;
        }
        .btn-secondary:hover {
            background: #555;
        }
        .star-rating {
            display: flex;
            gap: 6px;
            font-size: 1.6rem;
            color: #ccc;
            cursor: pointer;
            direction: rtl;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            transition: color 0.2s;
            color: #ddd;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f5b342;
        }
        .star-rating label i {
            pointer-events: none;
        }
        .comment-item {
            padding: 1rem 0;
            border-bottom: 1px solid #eee;
        }
        .comment-item:last-child {
            border-bottom: none;
        }
        .comment-author {
            font-weight: 700;
            color: #e10600;
        }
        .comment-date {
            font-size: 0.85rem;
            color: #888;
            margin-left: 1rem;
        }
        .comment-text {
            margin-top: 0.3rem;
        }
        friend-link {
            display: block;
            padding: 2rem 0 1rem;
            border-top: 2px solid #e10600;
            margin-top: 1rem;
        }
        friend-link h3 {
            font-size: 1.3rem;
            margin-bottom: 1rem;
            color: #0f0f1a;
        }
        friend-link ul {
            list-style: none;
            padding: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem 1.8rem;
        }
        friend-link ul li a {
            color: #e10600;
            font-weight: 500;
        }
        friend-link ul li a:hover {
            text-decoration: underline;
        }
        .site-footer {
            background: #0f0f1a;
            color: #bbb;
            padding: 2rem 0;
            text-align: center;
            font-size: 0.9rem;
        }
        .site-footer a {
            color: #ff6b6b;
        }
        .site-footer a:hover {
            color: #fff;
        }
        .site-footer .copyright {
            margin-top: 0.8rem;
            border-top: 1px solid #2a2a3e;
            padding-top: 1rem;
            font-size: 0.85rem;
            color: #888;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: flex;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                background: #1a1a2e;
                padding: 1rem 0.5rem;
                border-radius: 0 0 12px 12px;
                margin-top: 0.8rem;
                gap: 0.3rem;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 0.7rem 1rem;
                border-radius: 4px;
            }
            .header-inner {
                align-items: center;
            }
            h1 {
                font-size: 1.9rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .hero h1 {
                font-size: 1.9rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .section {
                padding: 1.4rem 1.2rem;
            }
            .container {
                padding: 0 12px;
            }
            .star-rating {
                font-size: 1.4rem;
            }
            .table-wrap table {
                font-size: 0.85rem;
            }
            th,
            td {
                padding: 0.5rem 0.6rem;
            }
            friend-link ul {
                flex-direction: column;
                gap: 0.5rem;
            }
        }
        @media (max-width: 480px) {
            h1 {
                font-size: 1.6rem;
            }
            h2 {
                font-size: 1.3rem;
            }
            h3 {
                font-size: 1.15rem;
            }
            .hero h1 {
                font-size: 1.6rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .btn {
                padding: 0.6rem 1.2rem;
                font-size: 0.9rem;
            }
        }
        .text-small {
            font-size: 0.9rem;
            color: #666;
        }
        .text-muted {
            color: #888;
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mt-2 {
            margin-top: 2rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .mb-2 {
            margin-bottom: 2rem;
        }
        .flex {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
            align-items: center;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
        }
        @media (max-width: 600px) {
            .grid-2 {
                grid-template-columns: 1fr;
            }
        }
        .highlight {
            background: #fff3cd;
            padding: 0.1rem 0.3rem;
            border-radius: 4px;
        }
        .badge {
            display: inline-block;
            background: #e10600;
            color: #fff;
            padding: 0.2rem 0.8rem;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
        }
        .quote {
            border-left: 4px solid #e10600;
            padding: 1rem 1.5rem;
            background: #f8f8ff;
            margin: 1.5rem 0;
            font-style: italic;
            border-radius: 0 8px 8px 0;
        }
        .toc {
            background: #f0f0f8;
            padding: 1.2rem 1.8rem;
            border-radius: 8px;
            margin: 1.5rem 0;
        }
        .toc ul {
            list-style: none;
            padding: 0;
        }
        .toc ul li {
            padding: 0.2rem 0;
        }
        .toc ul li a {
            color: #1a1a2e;
        }
        .toc ul li a:hover {
            color: #e10600;
        }