*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
            background: #f8f6f2;
            color: #1e1e1e;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        a {
            color: #b22222;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #8b1a1a;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.25rem;
        }
        h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin-bottom: 0.75rem;
            color: #1e1e1e;
        }
        h2 {
            font-size: 1.9rem;
            font-weight: 700;
            line-height: 1.25;
            margin-top: 2.8rem;
            margin-bottom: 1rem;
            border-bottom: 3px solid #b22222;
            padding-bottom: 0.3rem;
            color: #1e1e1e;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 600;
            margin-top: 2rem;
            margin-bottom: 0.75rem;
            color: #2c2c2c;
        }
        h4 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-top: 1.5rem;
            margin-bottom: 0.5rem;
            color: #3a3a3a;
        }
        p {
            margin-bottom: 1.2rem;
            font-size: 1.05rem;
        }
        .lead {
            font-size: 1.25rem;
            font-weight: 400;
            color: #3d3d3d;
            line-height: 1.8;
        }
        .site-header {
            background: linear-gradient(135deg, #1e1e1e 0%, #2d2d2d 100%);
            color: #fff;
            padding: 0.6rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.15);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 900;
            letter-spacing: -0.03em;
            color: #fff;
            background: #b22222;
            padding: 0.2rem 1rem;
            border-radius: 6px;
            transition: background 0.2s ease;
            text-decoration: none;
            display: inline-block;
        }
        .my-logo:hover {
            background: #8b1a1a;
            text-decoration: none;
            color: #fff;
        }
        .my-logo span {
            color: #fdd835;
        }
        .nav-bar {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 0.2rem;
            padding: 0;
            margin: 0;
        }
        .nav-list li a {
            color: #f0f0f0;
            padding: 0.5rem 0.9rem;
            border-radius: 4px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: background 0.2s ease, color 0.2s ease;
            display: block;
        }
        .nav-list li a:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #fdd835;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            font-size: 1.6rem;
            background: none;
            border: none;
            color: #fff;
            cursor: pointer;
            padding: 0.3rem 0.6rem;
            border-radius: 4px;
            transition: background 0.2s ease;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .breadcrumb {
            background: #ecebe7;
            padding: 0.6rem 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #dad7d0;
        }
        .breadcrumb ul {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 0.6rem;
            padding: 0;
            margin: 0;
        }
        .breadcrumb ul li+li::before {
            content: "›";
            margin-right: 0.6rem;
            color: #999;
        }
        .breadcrumb a {
            color: #b22222;
        }
        .breadcrumb .current {
            color: #666;
            font-weight: 500;
        }
        .search-section {
            background: #ecebe7;
            padding: 1.5rem 0;
            border-bottom: 1px solid #dad7d0;
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 0 auto;
            gap: 0.5rem;
        }
        .search-form input[type="text"] {
            flex: 1;
            padding: 0.75rem 1.2rem;
            border: 2px solid #ccc;
            border-radius: 30px;
            font-size: 1rem;
            outline: none;
            transition: border-color 0.3s ease;
            background: #fff;
        }
        .search-form input[type="text"]:focus {
            border-color: #b22222;
        }
        .search-form button {
            background: #b22222;
            color: #fff;
            border: none;
            border-radius: 30px;
            padding: 0.75rem 1.6rem;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s ease;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .search-form button:hover {
            background: #8b1a1a;
        }
        .hero {
            padding: 3rem 0 2rem;
            background: #fff;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2.5rem;
            align-items: center;
        }
        .hero-image {
            border-radius: 12px;
            box-shadow: 0 6px 30px rgba(0, 0, 0, 0.08);
            overflow: hidden;
        }
        .hero-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }
        .hero h1 {
            font-size: 2.8rem;
        }
        .hero .meta {
            display: flex;
            gap: 1.5rem;
            font-size: 0.95rem;
            color: #777;
            margin-top: 1rem;
            flex-wrap: wrap;
        }
        .hero .meta i {
            margin-right: 0.35rem;
        }
        .content-area {
            background: #fff;
            padding: 2rem 0 3rem;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 3rem;
        }
        .article-body p,
        .article-body li {
            font-size: 1.05rem;
        }
        .article-body ul,
        .article-body ol {
            margin-bottom: 1.2rem;
        }
        .article-body li {
            margin-bottom: 0.3rem;
        }
        .stats-block {
            background: #f4f2ed;
            padding: 1.5rem 2rem;
            border-radius: 12px;
            border-left: 5px solid #b22222;
            margin: 1.8rem 0;
        }
        .stats-block h4 {
            margin-top: 0;
            color: #b22222;
        }
        .insight-box {
            background: #fdf8f0;
            padding: 1.5rem 2rem;
            border-radius: 12px;
            border: 1px solid #e8ddd0;
            margin: 1.8rem 0;
        }
        .insight-box i {
            color: #b22222;
            margin-right: 0.5rem;
        }
        .sidebar {
            background: #faf9f7;
            padding: 1.8rem 1.8rem;
            border-radius: 12px;
            border: 1px solid #e8e3db;
            height: fit-content;
            position: sticky;
            top: 90px;
        }
        .sidebar h3 {
            margin-top: 0;
            font-size: 1.3rem;
            border-bottom: 2px solid #b22222;
            padding-bottom: 0.5rem;
        }
        .sidebar ul {
            list-style: none;
            padding: 0;
            margin: 1rem 0 0;
        }
        .sidebar ul li {
            padding: 0.5rem 0;
            border-bottom: 1px solid #ece8e0;
        }
        .sidebar ul li a {
            font-weight: 500;
        }
        .sidebar ul li a:hover {
            padding-left: 4px;
        }
        .interaction-area {
            background: #f4f2ed;
            padding: 2.5rem 0;
            border-top: 2px solid #e0dbd2;
        }
        .interaction-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2.5rem;
        }
        .comment-form textarea,
        .comment-form input {
            width: 100%;
            padding: 0.75rem 1rem;
            border: 2px solid #d6d0c8;
            border-radius: 8px;
            font-size: 1rem;
            font-family: inherit;
            transition: border-color 0.3s ease;
            background: #fff;
        }
        .comment-form textarea:focus,
        .comment-form input:focus {
            border-color: #b22222;
            outline: none;
        }
        .comment-form textarea {
            min-height: 110px;
            resize: vertical;
        }
        .comment-form .form-row {
            margin-bottom: 1rem;
        }
        .comment-form button,
        .rating-form button {
            background: #b22222;
            color: #fff;
            border: none;
            padding: 0.7rem 2rem;
            border-radius: 30px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s ease;
        }
        .comment-form button:hover,
        .rating-form button:hover {
            background: #8b1a1a;
        }
        .rating-form .star-group {
            display: flex;
            gap: 0.4rem;
            font-size: 1.8rem;
            color: #ccc;
            cursor: pointer;
            margin: 0.5rem 0 1rem;
        }
        .rating-form .star-group i.active {
            color: #f9a825;
        }
        .rating-form .star-group i:hover,
        .rating-form .star-group i.hover {
            color: #f9a825;
        }
        .rating-form label {
            font-weight: 600;
            display: block;
            margin-bottom: 0.3rem;
        }
        .site-footer {
            background: #1e1e1e;
            color: #ddd;
            padding: 2.5rem 0 1.5rem;
            border-top: 4px solid #b22222;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .site-footer h4 {
            color: #fdd835;
            margin-top: 0;
            margin-bottom: 0.8rem;
            font-size: 1.1rem;
        }
        .site-footer a {
            color: #ddc8b0;
        }
        .site-footer a:hover {
            color: #fdd835;
            text-decoration: underline;
        }
        friend-link {
            display: block;
            background: #2a2a2a;
            padding: 1.2rem 1.5rem;
            border-radius: 8px;
            margin: 1rem 0 1.5rem;
            border-left: 4px solid #b22222;
        }
        friend-link a {
            display: inline-block;
            margin: 0.2rem 1.2rem 0.2rem 0;
            font-size: 0.95rem;
        }
        .copyright {
            border-top: 1px solid #3a3a3a;
            padding-top: 1.5rem;
            font-size: 0.9rem;
            text-align: center;
            color: #aaa;
        }
        .copyright strong {
            color: #ddd;
        }
        @media (max-width: 992px) {
            .hero-grid {
                grid-template-columns: 1fr;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                margin-top: 2rem;
            }
            .interaction-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .nav-list {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #2d2d2d;
                border-radius: 8px;
                padding: 0.8rem 0.5rem;
                margin-top: 0.6rem;
                gap: 0.2rem;
            }
            .nav-list.open {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            .header-inner {
                align-items: center;
            }
            .nav-bar {
                width: 100%;
                order: 3;
            }
            .my-logo {
                font-size: 1.4rem;
                padding: 0.2rem 0.8rem;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            h3 {
                font-size: 1.3rem;
            }
            .hero h1 {
                font-size: 1.9rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                width: 100%;
                justify-content: center;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .rating-form .star-group {
                font-size: 2.2rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 1rem;
            }
            .hero {
                padding: 1.5rem 0 1rem;
            }
            .stats-block {
                padding: 1rem 1.2rem;
            }
            .insight-box {
                padding: 1rem 1.2rem;
            }
            .sidebar {
                padding: 1.2rem;
            }
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .text-small {
            font-size: 0.9rem;
        }
        .flex-wrap {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem 1rem;
            align-items: center;
        }
        .tag {
            background: #ecebe7;
            padding: 0.2rem 0.8rem;
            border-radius: 20px;
            font-size: 0.8rem;
            color: #555;
        }