*,
        *::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: #f5f3ef;
            color: #1e1e1e;
            line-height: 1.75;
            padding: 0 1rem;
            max-width: 1280px;
            margin: 0 auto;
        }
        a {
            color: #9b2c2c;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover,
        a:focus {
            color: #d44545;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 8px;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.25;
            margin-top: 1.8rem;
            margin-bottom: 0.6rem;
            color: #1a1a2e;
        }
        h1 {
            font-size: 2.4rem;
            border-bottom: 4px solid #9b2c2c;
            padding-bottom: 0.4rem;
        }
        h2 {
            font-size: 1.8rem;
            border-left: 6px solid #9b2c2c;
            padding-left: 0.75rem;
        }
        h3 {
            font-size: 1.35rem;
            color: #2d2d44;
        }
        h4 {
            font-size: 1.1rem;
            color: #3e3e5c;
            font-style: italic;
        }
        p {
            margin-bottom: 1.2rem;
        }
        ul,
        ol {
            margin-left: 1.8rem;
            margin-bottom: 1.2rem;
        }
        li {
            margin-bottom: 0.3rem;
        }
        blockquote {
            border-left: 4px solid #9b2c2c;
            background: #ede8e0;
            padding: 0.8rem 1.2rem;
            margin: 1.2rem 0;
            font-style: italic;
            border-radius: 0 8px 8px 0;
        }
        hr {
            border: 0;
            height: 1px;
            background: linear-gradient(to right, transparent, #9b2c2c, transparent);
            margin: 2.5rem 0;
        }
        .container {
            background: #ffffff;
            border-radius: 16px;
            padding: 1.8rem 2rem;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
            margin-top: 1rem;
            margin-bottom: 2rem;
        }
        .text-sm {
            font-size: 0.9rem;
            color: #5a5a6e;
        }
        .text-muted {
            color: #6b6b7b;
        }
        .fw-bold {
            font-weight: 700;
        }
        .mt-2 {
            margin-top: 1.2rem;
        }
        .mb-2 {
            margin-bottom: 1.2rem;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.2rem;
        }
        .site-header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 1rem 0 0.5rem 0;
            border-bottom: 2px solid #e0d8ce;
            position: relative;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            letter-spacing: -0.5px;
            color: #9b2c2c;
            text-transform: uppercase;
            background: linear-gradient(145deg, #9b2c2c, #c0392b);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            transition: transform 0.2s;
            display: inline-block;
        }
        .my-logo:hover {
            transform: scale(1.02);
            text-decoration: none;
        }
        .my-logo i {
            -webkit-text-fill-color: initial;
            color: #9b2c2c;
            margin-right: 0.3rem;
        }
        .nav-wrap {
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }
        .nav-list {
            display: flex;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 0.2rem;
            flex-wrap: wrap;
        }
        .nav-list li a {
            display: block;
            padding: 0.5rem 1rem;
            border-radius: 30px;
            font-weight: 500;
            color: #2d2d44;
            background: transparent;
            transition: background 0.2s, color 0.2s;
            font-size: 0.95rem;
        }
        .nav-list li a:hover,
        .nav-list li a.active {
            background: #9b2c2c;
            color: #fff;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: #2d2d44;
            cursor: pointer;
            padding: 0.2rem 0.5rem;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: #ede8e0;
        }
        #nav-toggle {
            display: none;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            padding: 0.6rem 0;
            margin: 0 0 0.8rem 0;
            font-size: 0.9rem;
            color: #6b6b7b;
            background: #f5f3ef;
            border-radius: 30px;
            padding: 0.4rem 1.2rem;
        }
        .breadcrumb li+li::before {
            content: "›";
            padding: 0 0.6rem;
            color: #9b2c2c;
            font-weight: 700;
        }
        .breadcrumb a {
            color: #6b6b7b;
        }
        .breadcrumb a:hover {
            color: #9b2c2c;
        }
        .breadcrumb .current {
            color: #1a1a2e;
            font-weight: 600;
        }
        .search-form {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
            margin: 1.2rem 0 1.8rem 0;
            padding: 1rem 1.2rem;
            background: #f5f3ef;
            border-radius: 50px;
            align-items: center;
        }
        .search-form i {
            color: #9b2c2c;
            font-size: 1.2rem;
        }
        .search-form input {
            flex: 1;
            min-width: 160px;
            border: none;
            background: transparent;
            padding: 0.5rem 0.2rem;
            font-size: 1rem;
            outline: none;
            color: #1e1e1e;
        }
        .search-form input::placeholder {
            color: #8a8a9e;
        }
        .search-form button {
            background: #9b2c2c;
            color: #fff;
            border: none;
            padding: 0.5rem 1.8rem;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
        }
        .search-form button:hover {
            background: #7a2020;
            transform: scale(1.01);
        }
        .toc {
            background: #f5f3ef;
            padding: 1.2rem 1.8rem;
            border-radius: 12px;
            margin: 1.5rem 0 2rem 0;
            border: 1px solid #e0d8ce;
        }
        .toc h3 {
            margin-top: 0;
            color: #1a1a2e;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .toc ul {
            columns: 2 260px;
            column-gap: 2rem;
            margin: 0.8rem 0 0 0;
            list-style: none;
            padding: 0;
        }
        .toc ul li {
            break-inside: avoid;
            margin-bottom: 0.4rem;
        }
        .toc ul li a {
            display: inline-block;
            padding: 0.2rem 0;
            color: #2d2d44;
            border-bottom: 1px dotted transparent;
        }
        .toc ul li a:hover {
            border-bottom-color: #9b2c2c;
        }
        .featured-img {
            margin: 1.8rem 0;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
            background: #ede8e0;
            text-align: center;
        }
        .featured-img img {
            width: 100%;
            max-height: 480px;
            object-fit: cover;
        }
        .featured-img figcaption {
            padding: 0.6rem 1rem;
            font-size: 0.9rem;
            color: #5a5a6e;
            background: #f5f3ef;
            font-style: italic;
        }
        .user-interact {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            margin: 2.2rem 0 1.5rem 0;
            padding: 1.5rem 1.8rem;
            background: #faf8f5;
            border-radius: 14px;
            border: 1px solid #e0d8ce;
        }
        .rating-box,
        .comment-box {
            flex: 1 1 240px;
        }
        .rating-box h4,
        .comment-box h4 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .star-group {
            display: flex;
            gap: 0.3rem;
            font-size: 1.6rem;
            color: #d4a017;
            cursor: pointer;
            margin: 0.4rem 0;
        }
        .star-group i:hover,
        .star-group i.active {
            color: #f0c040;
        }
        .rating-form button,
        .comment-form button {
            background: #9b2c2c;
            color: #fff;
            border: none;
            padding: 0.4rem 1.6rem;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
        }
        .rating-form button:hover,
        .comment-form button:hover {
            background: #7a2020;
        }
        .comment-form textarea {
            width: 100%;
            border: 1px solid #d4ccc2;
            border-radius: 10px;
            padding: 0.6rem 0.8rem;
            font-family: inherit;
            font-size: 0.95rem;
            resize: vertical;
            min-height: 70px;
            background: #fff;
            transition: border 0.2s;
        }
        .comment-form textarea:focus {
            outline: none;
            border-color: #9b2c2c;
        }
        .comment-form input[type="text"] {
            width: 100%;
            border: 1px solid #d4ccc2;
            border-radius: 30px;
            padding: 0.5rem 0.8rem;
            font-size: 0.95rem;
            margin-bottom: 0.5rem;
            background: #fff;
        }
        .comment-form input[type="text"]:focus {
            outline: none;
            border-color: #9b2c2c;
        }
        .site-footer {
            margin-top: 2.5rem;
            padding: 1.8rem 0 1rem 0;
            border-top: 2px solid #e0d8ce;
            font-size: 0.95rem;
            color: #5a5a6e;
        }
        .footer-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
            justify-content: space-between;
        }
        .footer-col {
            flex: 1 1 200px;
        }
        .footer-col h5 {
            font-size: 1rem;
            margin-bottom: 0.8rem;
            color: #1a1a2e;
        }
        friend-link {
            display: block;
            margin-top: 0.2rem;
        }
        friend-link a {
            display: inline-block;
            padding: 0.2rem 0;
            color: #5a5a6e;
        }
        friend-link a:hover {
            color: #9b2c2c;
        }
        .copyright {
            text-align: center;
            padding-top: 1.2rem;
            margin-top: 1.5rem;
            border-top: 1px solid #e0d8ce;
            font-size: 0.85rem;
            color: #7a7a8a;
        }
        @media (max-width: 900px) {
            .container {
                padding: 1.2rem 1rem;
            }
            h1 {
                font-size: 1.9rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .toc ul {
                columns: 1;
            }
            .user-interact {
                flex-direction: column;
            }
        }
        @media (max-width: 720px) {
            .hamburger {
                display: block;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #ffffff;
                border-radius: 12px;
                padding: 0.8rem 0.4rem;
                box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                z-index: 100;
                margin-top: 0.4rem;
            }
            #nav-toggle:checked+.hamburger+.nav-list {
                display: flex;
            }
            .nav-wrap {
                position: relative;
                width: auto;
            }
            .nav-list li a {
                padding: 0.6rem 1.2rem;
                border-radius: 8px;
            }
            .search-form {
                border-radius: 30px;
                padding: 0.8rem 1rem;
            }
            .search-form button {
                padding: 0.4rem 1.2rem;
                font-size: 0.9rem;
            }
            .footer-grid {
                flex-direction: column;
                gap: 1.2rem;
            }
            .my-logo {
                font-size: 1.7rem;
            }
        }
        @media (max-width: 480px) {
            body {
                padding: 0 0.5rem;
            }
            .container {
                padding: 0.8rem 0.6rem;
                border-radius: 10px;
            }
            h1 {
                font-size: 1.5rem;
            }
            h2 {
                font-size: 1.25rem;
                border-left-width: 4px;
                padding-left: 0.5rem;
            }
            .breadcrumb {
                font-size: 0.8rem;
                padding: 0.3rem 0.8rem;
            }
            .star-group {
                font-size: 1.3rem;
            }
        }
        .scroll-top {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            background: #9b2c2c;
            color: #fff;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
            transition: transform 0.2s, background 0.2s;
            z-index: 99;
            border: none;
            cursor: pointer;
        }
        .scroll-top:hover {
            background: #7a2020;
            transform: translateY(-3px);
        }
        .section-spacer {
            margin-top: 2.2rem;
        }
        .inline-icon {
            color: #9b2c2c;
            margin-right: 0.3rem;
        }
        .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem 0.8rem;
            list-style: none;
            padding: 0;
            margin: 0.8rem 0;
        }
        .tag-list li a {
            background: #ede8e0;
            padding: 0.2rem 0.8rem;
            border-radius: 30px;
            font-size: 0.85rem;
            color: #2d2d44;
        }
        .tag-list li a:hover {
            background: #9b2c2c;
            color: #fff;
            text-decoration: none;
        }
        .last-updated {
            display: block;
            text-align: right;
            font-size: 0.85rem;
            color: #7a7a8a;
            margin-top: 1rem;
            padding-top: 0.5rem;
            border-top: 1px dashed #e0d8ce;
        }
        .schema-hidden {
            display: none;
        }