*,
        *::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: #f8f6f2;
            color: #1e2a3a;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        a {
            color: #c8a15e;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover {
            color: #a8833a;
            text-decoration: underline;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.25;
            color: #0f1a2b;
        }
        h1 {
            font-size: 2.4rem;
            margin-bottom: 0.75rem;
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: 1.8rem;
            margin-top: 2.5rem;
            margin-bottom: 0.6rem;
            border-left: 5px solid #c8a15e;
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.35rem;
            margin-top: 1.8rem;
            margin-bottom: 0.4rem;
            color: #2c3e50;
        }
        h4 {
            font-size: 1.1rem;
            margin-top: 1.2rem;
            margin-bottom: 0.3rem;
            color: #3e5268;
        }
        p {
            margin-bottom: 1.2rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        .site-header {
            background: linear-gradient(145deg, #0f1a2b 0%, #1a2a40 100%);
            color: #fff;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.8rem;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            letter-spacing: -0.03em;
            background: linear-gradient(135deg, #e8c97a, #c8a15e);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: none;
            display: inline-block;
        }
        .my-logo a {
            color: inherit;
            background: inherit;
            -webkit-background-clip: inherit;
            background-clip: inherit;
            -webkit-text-fill-color: inherit;
        }
        .my-logo a:hover {
            text-decoration: none;
            opacity: 0.9;
        }
        .my-logo small {
            font-size: 0.6rem;
            display: block;
            -webkit-text-fill-color: #aaa;
            color: #aaa;
            font-weight: 300;
            letter-spacing: 0.2em;
        }
        .nav-wrap {
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 0.2rem;
            flex-wrap: wrap;
        }
        .nav-list li a {
            display: block;
            padding: 0.5rem 1rem;
            color: #e8e0d0;
            font-size: 0.9rem;
            font-weight: 500;
            border-radius: 30px;
            transition: background 0.25s, color 0.25s;
        }
        .nav-list li a:hover {
            background: rgba(200, 161, 94, 0.2);
            color: #e8c97a;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.2rem 0.5rem;
        }
        .breadcrumb {
            background: #ede9e0;
            padding: 0.6rem 0;
            font-size: 0.85rem;
            border-bottom: 1px solid #dcd4c4;
        }
        .breadcrumb ul {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem 0.8rem;
        }
        .breadcrumb ul li+li::before {
            content: "›";
            margin-right: 0.6rem;
            color: #999;
        }
        .breadcrumb a {
            color: #5b6f84;
        }
        .breadcrumb a:hover {
            color: #c8a15e;
        }
        .breadcrumb .current {
            font-weight: 600;
            color: #1e2a3a;
        }
        .content-area {
            padding: 2.5rem 0 3rem;
        }
        .article-header {
            margin-bottom: 2rem;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            font-size: 0.9rem;
            color: #5b6f84;
            align-items: center;
            margin-top: 0.5rem;
        }
        .article-meta .updated {
            background: #c8a15e20;
            padding: 0.2rem 0.8rem;
            border-radius: 30px;
            font-weight: 600;
            color: #a8833a;
        }
        .article-body {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 2.5rem;
        }
        .article-main {
            min-width: 0;
        }
        .article-sidebar {
            position: sticky;
            top: 6rem;
            align-self: start;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 16px;
            padding: 1.5rem;
            margin-bottom: 1.8rem;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.05);
            border: 1px solid #ede9e0;
        }
        .sidebar-card h3 {
            font-size: 1.2rem;
            margin-top: 0;
            margin-bottom: 0.8rem;
            border-left: 3px solid #c8a15e;
            padding-left: 0.7rem;
        }
        .sidebar-card ul {
            list-style: none;
        }
        .sidebar-card ul li {
            padding: 0.4rem 0;
            border-bottom: 1px solid #f0ece4;
        }
        .sidebar-card ul li a {
            font-weight: 500;
        }
        .feature-image {
            margin: 1.5rem 0 2rem;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.08);
        }
        .feature-image figcaption {
            font-size: 0.85rem;
            color: #6a7f96;
            padding: 0.6rem 1rem;
            background: #f4f0e8;
            font-style: italic;
        }
        .search-form {
            display: flex;
            gap: 0.5rem;
            flex-wrap: wrap;
        }
        .search-form input {
            flex: 1;
            min-width: 140px;
            padding: 0.7rem 1rem;
            border: 2px solid #ddd6c8;
            border-radius: 40px;
            font-size: 0.95rem;
            background: #fcfaf7;
            transition: border 0.25s;
        }
        .search-form input:focus {
            border-color: #c8a15e;
            outline: none;
        }
        .search-form button {
            padding: 0.7rem 1.6rem;
            background: #c8a15e;
            border: none;
            border-radius: 40px;
            color: #fff;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
        }
        .search-form button:hover {
            background: #a8833a;
            transform: scale(1.02);
        }
        .comment-section {
            margin-top: 3rem;
            background: #fff;
            border-radius: 20px;
            padding: 2rem;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.05);
            border: 1px solid #ede9e0;
        }
        .comment-section h2 {
            margin-top: 0;
            border-left-color: #c8a15e;
        }
        .comment-form textarea,
        .comment-form input {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 2px solid #ddd6c8;
            border-radius: 12px;
            font-size: 0.95rem;
            font-family: inherit;
            background: #fcfaf7;
            margin-bottom: 0.8rem;
            transition: border 0.25s;
        }
        .comment-form textarea:focus,
        .comment-form input:focus {
            border-color: #c8a15e;
            outline: none;
        }
        .comment-form textarea {
            min-height: 100px;
            resize: vertical;
        }
        .comment-form .form-row {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }
        .comment-form .form-row input {
            flex: 1;
            min-width: 140px;
        }
        .comment-form button {
            padding: 0.8rem 2rem;
            background: #0f1a2b;
            border: none;
            border-radius: 40px;
            color: #fff;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
            font-size: 1rem;
        }
        .comment-form button:hover {
            background: #1a2a40;
            transform: scale(1.02);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.2rem;
            margin-bottom: 1rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 2rem;
            color: #ddd6c8;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #e8c97a;
        }
        .site-footer {
            background: #0f1a2b;
            color: #cdd5e0;
            padding: 2.5rem 0 1.8rem;
            margin-top: 3rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .site-footer h4 {
            color: #e8c97a;
            font-size: 1.1rem;
            margin-top: 0;
            margin-bottom: 0.8rem;
        }
        .site-footer a {
            color: #b0bccb;
        }
        .site-footer a:hover {
            color: #e8c97a;
        }
        .friend-link {
            display: block;
            background: #1a2a40;
            padding: 1.2rem 1.5rem;
            border-radius: 16px;
            margin-bottom: 1.2rem;
        }
        .friend-link ul {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem 1.2rem;
        }
        .friend-link ul li a {
            font-size: 0.9rem;
            padding: 0.2rem 0;
        }
        .copyright {
            border-top: 1px solid #2a3a50;
            padding-top: 1.5rem;
            text-align: center;
            font-size: 0.85rem;
            color: #8a9bb0;
        }
        .copyright strong {
            color: #cdd5e0;
        }
        @media (max-width: 900px) {
            .article-body {
                grid-template-columns: 1fr;
            }
            .article-sidebar {
                position: static;
                order: 2;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
        }
        @media (max-width: 720px) {
            .nav-list {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #0f1a2b;
                padding: 0.8rem 0;
                border-radius: 0 0 16px 16px;
                position: absolute;
                top: 100%;
                left: 0;
                z-index: 999;
                box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list li a {
                padding: 0.7rem 1.5rem;
                border-radius: 0;
            }
            .hamburger {
                display: block;
            }
            .header-inner {
                position: relative;
            }
            .container {
                padding: 0 1rem;
            }
            .comment-section {
                padding: 1.2rem;
            }
        }
        @media (max-width: 480px) {
            h1 {
                font-size: 1.5rem;
            }
            .my-logo {
                font-size: 1.5rem;
            }
            .search-form input {
                min-width: 100px;
            }
        }
        .highlight {
            background: linear-gradient(to top, #f0e6d0 40%, transparent 60%);
            padding: 0 0.2rem;
        }
        .btn-outline {
            display: inline-block;
            padding: 0.4rem 1.2rem;
            border: 2px solid #c8a15e;
            border-radius: 40px;
            color: #c8a15e;
            font-weight: 600;
            font-size: 0.85rem;
            transition: all 0.25s;
        }
        .btn-outline:hover {
            background: #c8a15e;
            color: #fff;
            text-decoration: none;
        }
        .tag {
            display: inline-block;
            background: #ede9e0;
            padding: 0.15rem 0.8rem;
            border-radius: 30px;
            font-size: 0.75rem;
            color: #4a5f76;
            margin-right: 0.3rem;
        }
        .emoji-big {
            font-size: 1.6em;
            line-height: 1;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.2rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            background: #fff;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
        }
        table th {
            background: #0f1a2b;
            color: #e8c97a;
            padding: 0.7rem 1rem;
            text-align: left;
            font-weight: 600;
        }
        table td {
            padding: 0.6rem 1rem;
            border-bottom: 1px solid #ede9e0;
        }
        table tr:last-child td {
            border-bottom: none;
        }
        blockquote {
            border-left: 4px solid #c8a15e;
            background: #f4efe6;
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 12px 12px 0;
            font-style: italic;
            color: #2c3e50;
        }
        blockquote cite {
            display: block;
            margin-top: 0.6rem;
            font-size: 0.85rem;
            color: #6a7f96;
            font-style: normal;
        }
        .pro-tip {
            background: #eef7ee;
            border-left: 5px solid #4caf50;
            padding: 1rem 1.5rem;
            border-radius: 0 12px 12px 0;
            margin: 1.2rem 0;
        }
        .pro-tip strong {
            color: #2e7d32;
        }