*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
            background: #f8f4f0;
            color: #2c1810;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: #b8860b;
            text-decoration: none;
            transition: color 0.25s;
        }
        a:hover,
        a:focus {
            color: #8b0000;
            text-decoration: underline;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.25;
            color: #1a0a00;
            margin-top: 1.8rem;
            margin-bottom: 0.75rem;
        }
        h1 {
            font-size: 2.4rem;
            margin-top: 0.5rem;
            border-bottom: 4px solid #b8860b;
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 1.8rem;
            border-left: 6px solid #b8860b;
            padding-left: 1rem;
            margin-top: 2.8rem;
        }
        h3 {
            font-size: 1.4rem;
            margin-top: 2rem;
            color: #3e1f0c;
        }
        h4 {
            font-size: 1.15rem;
            margin-top: 1.4rem;
            color: #5a2e0e;
            font-weight: 600;
        }
        p {
            margin-bottom: 1.2rem;
            color: #2c1810;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.2rem;
        }
        .site-header {
            background: linear-gradient(145deg, #1a0a00 0%, #2c1810 100%);
            padding: 0.8rem 0;
            border-bottom: 4px solid #b8860b;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.6rem 1.2rem;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 800;
            color: #f0d9b5;
            letter-spacing: 1px;
            text-transform: uppercase;
            text-shadow: 2px 2px 0 #5a2e0e;
            transition: transform 0.2s;
            display: inline-block;
        }
        .my-logo:hover {
            transform: scale(1.04);
            color: #ffd700;
            text-decoration: none;
        }
        .my-logo i {
            color: #b8860b;
            margin-right: 0.3rem;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 0.2rem 0.8rem;
            flex-wrap: wrap;
        }
        .main-nav a {
            color: #e8d5c0;
            font-weight: 500;
            padding: 0.4rem 0.8rem;
            border-radius: 6px;
            font-size: 0.9rem;
            transition: background 0.2s, color 0.2s;
            white-space: nowrap;
        }
        .main-nav a:hover,
        .main-nav a:focus {
            background: #b8860b;
            color: #1a0a00;
            text-decoration: none;
        }
        .main-nav a i {
            margin-right: 0.3rem;
        }
        .hamburger {
            display: none;
            background: none;
            border: 2px solid #b8860b;
            color: #f0d9b5;
            font-size: 1.4rem;
            padding: 0.3rem 0.8rem;
            border-radius: 6px;
            cursor: pointer;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: #b8860b;
            color: #1a0a00;
        }
        .breadcrumb {
            background: #e8d5c0;
            padding: 0.5rem 0;
            font-size: 0.85rem;
            border-bottom: 1px solid #d4b896;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 0.6rem;
            padding: 0;
            margin: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.4rem;
            color: #8b6914;
            font-weight: 700;
        }
        .breadcrumb a {
            color: #5a2e0e;
        }
        .breadcrumb a:hover {
            color: #8b0000;
        }
        .breadcrumb li[aria-current="page"] {
            color: #2c1810;
            font-weight: 600;
        }
        .search-section {
            background: #f0e6d8;
            padding: 1.2rem 0;
            border-bottom: 2px solid #d4b896;
        }
        .search-form {
            display: flex;
            gap: 0.6rem;
            max-width: 600px;
            margin: 0 auto;
            flex-wrap: wrap;
        }
        .search-form input[type="search"] {
            flex: 1;
            min-width: 160px;
            padding: 0.7rem 1rem;
            border: 2px solid #b8860b;
            border-radius: 30px;
            font-size: 0.95rem;
            background: #fffcf8;
            outline: none;
            transition: border-color 0.2s;
        }
        .search-form input[type="search"]:focus {
            border-color: #8b0000;
        }
        .search-form button {
            padding: 0.7rem 1.8rem;
            background: #b8860b;
            color: #1a0a00;
            border: none;
            border-radius: 30px;
            font-weight: 700;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
        }
        .search-form button:hover {
            background: #8b0000;
            color: #fff;
            transform: scale(1.02);
        }
        .hero-figure {
            margin: 1.5rem 0 2rem;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
            background: #1a0a00;
        }
        .hero-figure img {
            width: 100%;
            max-height: 520px;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .hero-figure img:hover {
            transform: scale(1.02);
        }
        .hero-figure figcaption {
            background: #1a0a00;
            color: #e8d5c0;
            padding: 0.7rem 1.2rem;
            font-size: 0.9rem;
            font-style: italic;
            text-align: center;
        }
        .content-area {
            background: #fffcf8;
            padding: 1.8rem 1.2rem 2.8rem;
            border-radius: 16px;
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
            margin: 1.5rem 0;
        }
        .content-area p,
        .content-area li {
            font-size: 1.05rem;
            letter-spacing: 0.01em;
        }
        .content-area p {
            margin-bottom: 1.4rem;
        }
        .content-area .highlight {
            background: linear-gradient(to right, #fef3e0, #fce4c8);
            padding: 0.2rem 0.6rem;
            border-radius: 4px;
            font-weight: 600;
        }
        .content-area .emoji-big {
            font-size: 1.4rem;
            margin-right: 0.3rem;
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.8rem;
            margin: 2.4rem 0 1.6rem;
            background: #f8f0e8;
            padding: 1.8rem;
            border-radius: 16px;
            border: 1px solid #d4b896;
        }
        .feedback-grid h3 {
            margin-top: 0;
            border-bottom: 2px solid #b8860b;
            padding-bottom: 0.4rem;
        }
        .feedback-grid form {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
        }
        .feedback-grid label {
            font-weight: 600;
            font-size: 0.95rem;
            color: #2c1810;
        }
        .feedback-grid input,
        .feedback-grid textarea,
        .feedback-grid select {
            padding: 0.6rem 0.8rem;
            border: 2px solid #d4b896;
            border-radius: 8px;
            font-size: 0.95rem;
            background: #fffcf8;
            outline: none;
            transition: border-color 0.2s;
        }
        .feedback-grid input:focus,
        .feedback-grid textarea:focus,
        .feedback-grid select:focus {
            border-color: #b8860b;
        }
        .feedback-grid textarea {
            min-height: 80px;
            resize: vertical;
        }
        .feedback-grid .btn-submit {
            padding: 0.7rem 1.5rem;
            background: #b8860b;
            color: #1a0a00;
            border: none;
            border-radius: 30px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            align-self: flex-start;
        }
        .feedback-grid .btn-submit:hover {
            background: #8b0000;
            color: #fff;
            transform: scale(1.02);
        }
        .rating-stars {
            display: flex;
            gap: 0.4rem;
            font-size: 1.6rem;
            color: #b8860b;
            cursor: pointer;
        }
        .rating-stars i {
            transition: transform 0.15s, color 0.15s;
        }
        .rating-stars i:hover,
        .rating-stars i.active {
            transform: scale(1.2);
            color: #8b0000;
        }
        .site-footer {
            background: #1a0a00;
            color: #d4b896;
            padding: 2rem 0 1.2rem;
            margin-top: 2.5rem;
            border-top: 6px solid #b8860b;
        }
        .footer-inner {
            display: flex;
            flex-direction: column;
            gap: 1.6rem;
        }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem 1.4rem;
            justify-content: center;
        }
        .footer-links a {
            color: #e8d5c0;
            font-size: 0.9rem;
        }
        .footer-links a:hover {
            color: #ffd700;
        }
        .friend-link {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem 1.6rem;
            justify-content: center;
            padding: 0.8rem 0;
            border-top: 1px solid #3e1f0c;
            border-bottom: 1px solid #3e1f0c;
            margin: 0.4rem 0;
            font-size: 0.9rem;
        }
        .friend-link a {
            color: #d4b896;
        }
        .friend-link a:hover {
            color: #ffd700;
        }
        .copyright {
            text-align: center;
            font-size: 0.85rem;
            opacity: 0.8;
            margin-top: 0.6rem;
            letter-spacing: 0.3px;
        }
        @media (max-width: 820px) {
            .feedback-grid {
                grid-template-columns: 1fr;
                gap: 1.6rem;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1.2rem;
            }
        }
        @media (max-width: 680px) {
            .hamburger {
                display: inline-block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                gap: 0.3rem 0;
                padding-top: 0.6rem;
                border-top: 1px solid #3e1f0c;
                margin-top: 0.4rem;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 0.6rem 0.8rem;
                border-radius: 4px;
            }
            .my-logo {
                font-size: 1.2rem;
            }
            .header-inner {
                gap: 0.4rem 0.8rem;
            }
            .container {
                padding: 0 0.9rem;
            }
            .content-area {
                padding: 1.2rem 0.8rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                width: 100%;
            }
            .feedback-grid {
                padding: 1.2rem;
            }
            h1 {
                font-size: 1.5rem;
            }
            h2 {
                font-size: 1.25rem;
                padding-left: 0.6rem;
            }
            h3 {
                font-size: 1.1rem;
            }
            .breadcrumb {
                font-size: 0.75rem;
            }
            .hero-figure {
                margin: 1rem 0 1.2rem;
                border-radius: 10px;
            }
            .hero-figure img {
                max-height: 240px;
            }
        }
        @media (min-width: 681px) {
            .main-nav {
                display: flex !important;
            }
        }
        .scroll-top {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            background: #b8860b;
            color: #1a0a00;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
            transition: background 0.2s, transform 0.2s;
            z-index: 50;
            border: none;
            cursor: pointer;
        }
        .scroll-top:hover {
            background: #8b0000;
            color: #fff;
            transform: translateY(-4px);
        }
        .toc {
            background: #f0e6d8;
            padding: 1.2rem 1.6rem;
            border-radius: 12px;
            margin: 1.2rem 0 2rem;
            border-left: 6px solid #b8860b;
        }
        .toc h4 {
            margin-top: 0;
            font-size: 1.1rem;
            color: #1a0a00;
        }
        .toc ul {
            list-style: none;
            padding: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 1.2rem;
        }
        .toc li {
            font-size: 0.95rem;
        }
        .toc a {
            color: #5a2e0e;
        }
        .toc a:hover {
            color: #8b0000;
        }
        .last-updated {
            font-size: 0.85rem;
            color: #7a5a3a;
            text-align: right;
            margin-top: 0.6rem;
            font-style: italic;
            border-top: 1px dashed #d4b896;
            padding-top: 0.6rem;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.2rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
            background: #fcf8f4;
            border-radius: 8px;
            overflow: hidden;
        }
        th,
        td {
            padding: 0.6rem 1rem;
            border: 1px solid #d4b896;
            text-align: left;
        }
        th {
            background: #b8860b;
            color: #1a0a00;
            font-weight: 700;
        }
        tr:nth-child(even) {
            background: #f8f0e8;
        }
        blockquote {
            border-left: 6px solid #b8860b;
            padding: 0.8rem 1.2rem;
            margin: 1.2rem 0;
            background: #f8f0e8;
            border-radius: 0 8px 8px 0;
            font-style: italic;
            color: #3e1f0c;
        }
        blockquote cite {
            display: block;
            margin-top: 0.4rem;
            font-size: 0.85rem;
            color: #7a5a3a;
        }
        .inline-icon {
            margin-right: 0.3rem;
            color: #b8860b;
        }