*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', sans-serif;
            background: #f9f7f2;
            color: #1e2a2f;
            line-height: 1.7;
            padding: 0 1rem;
        }
        a {
            color: #a3320b;
            text-decoration: underline;
            text-underline-offset: 2px;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #d44a1a;
            text-decoration-thickness: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.5rem;
            margin-bottom: 1.2rem;
        }
        li {
            margin-bottom: 0.4rem;
        }
        p {
            margin-bottom: 1.2rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: #1a2a2f;
            margin-top: 2rem;
            margin-bottom: 0.8rem;
        }
        h1 {
            font-size: 2.4rem;
            border-bottom: 4px solid #d4a373;
            display: inline-block;
            padding-bottom: 0.25rem;
            margin-top: 1.2rem;
        }
        h2 {
            font-size: 1.8rem;
            border-left: 5px solid #b5835a;
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.35rem;
            color: #3d2b1f;
        }
        h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: #5a3e2b;
        }
        blockquote {
            border-left: 4px solid #b5835a;
            background: #f0ebe4;
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 12px 12px 0;
            font-style: italic;
            color: #2e3b3f;
        }
        hr {
            border: none;
            border-top: 2px dashed #d4c9bc;
            margin: 2.5rem 0;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 0.5rem;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2.5rem;
        }
        @media (min-width: 992px) {
            .content-grid {
                grid-template-columns: 2fr 1fr;
            }
        }
        .site-header {
            background: #fffffffa;
            backdrop-filter: blur(8px);
            border-radius: 0 0 24px 24px;
            padding: 1rem 1.5rem;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
            position: sticky;
            top: 0;
            z-index: 100;
            margin-bottom: 1.5rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            border-bottom: 2px solid #e6dcd0;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            text-decoration: none;
            color: #4d2e1b;
            background: linear-gradient(145deg, #7a4d2e, #a06842);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }
        .my-logo i {
            -webkit-text-fill-color: #b5835a;
            font-size: 1.6rem;
        }
        .my-logo:hover {
            opacity: 0.85;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 1.2rem;
        }
        .nav-menu {
            display: flex;
            gap: 0.2rem;
            list-style: none;
            flex-wrap: wrap;
        }
        .nav-menu li a {
            display: block;
            padding: 0.5rem 1rem;
            border-radius: 40px;
            text-decoration: none;
            font-weight: 500;
            color: #2d3a3f;
            transition: background 0.2s, color 0.2s;
            font-size: 0.92rem;
        }
        .nav-menu li a:hover {
            background: #d4a37330;
            color: #a3320b;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: #4d2e1b;
            cursor: pointer;
            padding: 0.2rem 0.4rem;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: #eee5db;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .nav-menu {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #fffbf7;
                padding: 1rem 0.5rem;
                border-radius: 16px;
                margin-top: 0.8rem;
                box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu li a {
                padding: 0.7rem 1.2rem;
                border-radius: 10px;
            }
            .site-header {
                padding: 0.8rem 1rem;
            }
            .my-logo {
                font-size: 1.5rem;
            }
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem 0.8rem;
            list-style: none;
            padding: 0.8rem 0 0.2rem 0;
            font-size: 0.88rem;
            color: #6b5b4e;
            background: transparent;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.6rem;
            color: #b5835a;
            font-weight: 700;
        }
        .breadcrumb a {
            color: #6b5b4e;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            color: #a3320b;
            text-decoration: underline;
        }
        .breadcrumb .current {
            color: #2d1e14;
            font-weight: 600;
        }
        .card {
            background: #ffffff;
            border-radius: 20px;
            padding: 1.8rem 2rem;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.04);
            margin-bottom: 2rem;
            border: 1px solid #ede6dc;
        }
        .card-soft {
            background: #f6f1ea;
            border-radius: 20px;
            padding: 1.6rem 2rem;
            margin-bottom: 2rem;
        }
        .search-form {
            display: flex;
            gap: 0.6rem;
            flex-wrap: wrap;
            margin: 1.2rem 0 0.8rem;
        }
        .search-form input[type="text"] {
            flex: 1;
            min-width: 180px;
            padding: 0.75rem 1.2rem;
            border: 2px solid #dccfc2;
            border-radius: 60px;
            font-size: 1rem;
            background: #fffcf8;
            transition: border 0.2s, box-shadow 0.2s;
        }
        .search-form input[type="text"]:focus {
            outline: none;
            border-color: #b5835a;
            box-shadow: 0 0 0 4px #d4a37330;
        }
        .search-form button {
            padding: 0.75rem 1.8rem;
            border: none;
            background: #4d2e1b;
            color: #fff;
            border-radius: 60px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .search-form button:hover {
            background: #6b422a;
            transform: scale(1.02);
        }
        .search-form button:active {
            transform: scale(0.97);
        }
        .comment-box textarea {
            width: 100%;
            padding: 1rem 1.2rem;
            border: 2px solid #dccfc2;
            border-radius: 16px;
            font-family: inherit;
            font-size: 1rem;
            background: #fffcf8;
            resize: vertical;
            min-height: 110px;
            transition: border 0.2s, box-shadow 0.2s;
        }
        .comment-box textarea:focus {
            outline: none;
            border-color: #b5835a;
            box-shadow: 0 0 0 4px #d4a37330;
        }
        .comment-box .form-row {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            margin-top: 0.8rem;
            align-items: center;
        }
        .comment-box input[type="text"] {
            flex: 1;
            min-width: 150px;
            padding: 0.65rem 1.2rem;
            border: 2px solid #dccfc2;
            border-radius: 60px;
            font-size: 0.95rem;
            background: #fffcf8;
        }
        .comment-box input[type="text"]:focus {
            outline: none;
            border-color: #b5835a;
        }
        .btn-primary {
            padding: 0.7rem 2rem;
            border: none;
            background: #4d2e1b;
            color: #fff;
            border-radius: 60px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .btn-primary:hover {
            background: #6b422a;
            transform: scale(1.02);
        }
        .btn-primary:active {
            transform: scale(0.97);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            gap: 0.3rem;
            font-size: 1.8rem;
            margin: 0.6rem 0 0.8rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            color: #dccfc2;
            cursor: pointer;
            transition: color 0.15s, transform 0.1s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #e8b84b;
            transform: scale(1.05);
        }
        .feature-img {
            margin: 1.8rem 0;
            border-radius: 16px;
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.06);
        }
        .site-footer {
            background: #1e2a2f;
            color: #e2dcd5;
            border-radius: 28px 28px 0 0;
            padding: 2.5rem 2rem 1.8rem;
            margin-top: 4rem;
        }
        .site-footer a {
            color: #e8c9b0;
        }
        .site-footer a:hover {
            color: #ffd7b5;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
            max-width: 1200px;
            margin: 0 auto;
        }
        @media (min-width: 700px) {
            .footer-grid {
                grid-template-columns: 2fr 1fr 1fr;
            }
        }
        .footer-copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid #3a4a4f;
            font-size: 0.9rem;
            color: #b0a89e;
        }
        friend-link {
            display: block;
            background: #2a383d;
            padding: 1.2rem 1.5rem;
            border-radius: 16px;
            margin-top: 1rem;
            font-size: 0.95rem;
        }
        friend-link a {
            display: inline-block;
            margin: 0.2rem 1rem 0.2rem 0;
            color: #e8c9b0;
        }
        friend-link a:hover {
            color: #ffd7b5;
        }
        .last-updated {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.85rem;
            color: #7a6a5c;
            background: #ede6dc;
            padding: 0.3rem 1rem;
            border-radius: 40px;
            margin: 0.8rem 0 1.2rem;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.5rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            background: #fffcf8;
            border-radius: 16px;
            overflow: hidden;
            font-size: 0.95rem;
        }
        th,
        td {
            padding: 0.8rem 1.2rem;
            text-align: left;
            border-bottom: 1px solid #e6dcd0;
        }
        th {
            background: #4d2e1b;
            color: #fff;
            font-weight: 600;
        }
        tr:last-child td {
            border-bottom: none;
        }
        tr:hover td {
            background: #f6f1ea;
        }
        .toc {
            background: #f0ebe4;
            border-radius: 16px;
            padding: 1.5rem 2rem;
            margin: 1.8rem 0;
        }
        .toc ol {
            margin-bottom: 0;
        }
        .tag {
            display: inline-block;
            background: #d4a37320;
            color: #4d2e1b;
            padding: 0.2rem 1rem;
            border-radius: 40px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-right: 0.4rem;
        }
        .highlight {
            background: #fcf2e7;
            padding: 0.1rem 0.4rem;
            border-radius: 6px;
            font-weight: 600;
        }
        .emoji-big {
            font-size: 1.4rem;
            line-height: 1;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
        }
        @media (max-width: 600px) {
            .grid-2 {
                grid-template-columns: 1fr;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            .card {
                padding: 1.2rem 1.2rem;
            }
            .card-soft {
                padding: 1.2rem 1.2rem;
            }
        }
        .author-badge {
            display: flex;
            align-items: center;
            gap: 1rem;
            background: #ede6dc;
            border-radius: 60px;
            padding: 0.5rem 1.2rem 0.5rem 0.8rem;
            width: fit-content;
            margin: 1rem 0;
            font-size: 0.9rem;
        }
        .author-badge i {
            font-size: 1.6rem;
            color: #7a4d2e;
        }