*,
        *::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, sans-serif;
            background: #f6f4f0;
            color: #1e1e1e;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        a {
            color: #b8860b;
            text-decoration: underline;
            text-underline-offset: 2px;
            transition: color 0.2s;
        }
        a:hover {
            color: #8b6508;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        .site-header {
            background: linear-gradient(145deg, #0a1a2b 0%, #0f2a3f 100%);
            color: #f0e9d8;
            padding: 0 1.5rem;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }
        .header-inner {
            max-width: 1280px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding: 0.8rem 0;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: #f5d742;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.4rem;
            transition: opacity 0.2s;
        }
        .my-logo:hover {
            opacity: 0.85;
            color: #f5d742;
        }
        .my-logo i {
            font-size: 2rem;
            color: #e8b830;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid #f0e9d8;
            color: #f0e9d8;
            font-size: 1.5rem;
            padding: 0.3rem 0.8rem;
            border-radius: 6px;
            cursor: pointer;
            transition: 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(240, 233, 216, 0.15);
        }
        .primary-nav {
            display: flex;
            gap: 0.2rem;
            flex-wrap: wrap;
            align-items: center;
        }
        .primary-nav a {
            color: #e8ddd0;
            text-decoration: none;
            padding: 0.5rem 1rem;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: background 0.2s, color 0.2s;
            white-space: nowrap;
        }
        .primary-nav a:hover {
            background: rgba(245, 215, 66, 0.18);
            color: #f5d742;
        }
        .primary-nav a.active {
            background: #f5d742;
            color: #0a1a2b;
            font-weight: 700;
        }
        .breadcrumb-wrap {
            background: #ece7df;
            padding: 0.6rem 1.5rem;
            font-size: 0.85rem;
            border-bottom: 1px solid #d6cec0;
        }
        .breadcrumb-wrap ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem;
            max-width: 1280px;
            margin: 0 auto;
        }
        .breadcrumb-wrap li+li::before {
            content: "›";
            margin-right: 0.4rem;
            color: #9a8a78;
            font-weight: 700;
        }
        .breadcrumb-wrap a {
            color: #7a6a58;
            text-decoration: none;
        }
        .breadcrumb-wrap a:hover {
            color: #b8860b;
        }
        .breadcrumb-wrap .current {
            color: #3a2a1a;
            font-weight: 600;
        }
        .page-wrap {
            max-width: 1280px;
            margin: 0 auto;
            padding: 2rem 1.5rem 3rem;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
        }
        @media(max-width:960px) {
            .page-wrap {
                grid-template-columns: 1fr;
            }
        }
        .main-content {
            min-width: 0;
        }
        .sidebar {
            position: sticky;
            top: 90px;
            align-self: start;
            background: #ffffffdd;
            backdrop-filter: blur(4px);
            border-radius: 20px;
            padding: 1.8rem 1.5rem;
            border: 1px solid #e2d9cc;
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.04);
        }
        .sidebar h3 {
            font-size: 1.15rem;
            color: #0a1a2b;
            border-bottom: 2px solid #f5d742;
            padding-bottom: 0.5rem;
            margin-bottom: 1rem;
        }
        .sidebar ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
        }
        .sidebar li a {
            text-decoration: none;
            color: #3a2a1a;
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.3rem 0;
            border-bottom: 1px solid #eee8dd;
            transition: 0.2s;
        }
        .sidebar li a:hover {
            color: #b8860b;
            padding-left: 0.4rem;
        }
        .sidebar li a i {
            color: #b8860b;
            font-size: 0.8rem;
        }
        h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            color: #0a1a2b;
            margin-bottom: 0.6rem;
            letter-spacing: -0.5px;
        }
        h1 i {
            color: #f5d742;
            font-size: 2.8rem;
        }
        h2 {
            font-size: 1.9rem;
            font-weight: 700;
            color: #0f2a3f;
            margin-top: 3rem;
            margin-bottom: 1rem;
            border-left: 5px solid #f5d742;
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.35rem;
            font-weight: 700;
            color: #1e3a4f;
            margin-top: 2rem;
            margin-bottom: 0.6rem;
        }
        h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: #2a4a5f;
            margin-top: 1.4rem;
            margin-bottom: 0.4rem;
        }
        p {
            margin-bottom: 1.2rem;
            font-size: 1.05rem;
            color: #2a2a2a;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 400;
            color: #3a4a5a;
            background: #f0ebe3;
            padding: 1.2rem 1.8rem;
            border-radius: 14px;
            border-left: 4px solid #f5d742;
            margin-bottom: 2rem;
        }
        strong,
        b {
            color: #0a1a2b;
        }
        .highlight-box {
            background: #f9f5ed;
            border-radius: 16px;
            padding: 1.5rem 2rem;
            margin: 1.8rem 0;
            border: 1px solid #e5dbcd;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.02);
        }
        .highlight-box i {
            color: #b8860b;
            margin-right: 0.4rem;
        }
        ul,
        ol {
            margin: 1rem 0 1.5rem 1.6rem;
        }
        li {
            margin-bottom: 0.5rem;
            font-size: 1.02rem;
        }
        .feature-img-wrap {
            margin: 2rem 0;
            border-radius: 16px;
            overflow: hidden;
            background: #e8e0d6;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.06);
        }
        .feature-img-wrap img {
            width: 100%;
            height: auto;
            display: block;
        }
        .feature-img-wrap figcaption {
            padding: 0.8rem 1.2rem;
            background: #f6f1ea;
            font-size: 0.9rem;
            color: #5a4a3a;
            font-style: italic;
        }
        .interactive-section {
            background: #ffffff;
            border-radius: 20px;
            padding: 2rem 2rem 1.8rem;
            margin: 2.5rem 0;
            border: 1px solid #e5dbcd;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.03);
        }
        .interactive-section h2 {
            margin-top: 0;
            border-left-color: #b8860b;
        }
        .search-form {
            display: flex;
            gap: 0.6rem;
            flex-wrap: wrap;
            margin-top: 1rem;
        }
        .search-form input[type="text"] {
            flex: 1;
            min-width: 180px;
            padding: 0.8rem 1.2rem;
            border: 2px solid #ddd2c2;
            border-radius: 40px;
            font-size: 1rem;
            background: #faf8f5;
            transition: 0.2s;
        }
        .search-form input[type="text"]:focus {
            outline: none;
            border-color: #b8860b;
            background: #fff;
        }
        .search-form button {
            padding: 0.8rem 1.8rem;
            background: #b8860b;
            color: #fff;
            border: none;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .search-form button:hover {
            background: #9a7009;
            transform: scale(1.02);
        }
        .comment-form textarea {
            width: 100%;
            padding: 0.8rem 1.2rem;
            border: 2px solid #ddd2c2;
            border-radius: 14px;
            font-size: 1rem;
            font-family: inherit;
            background: #faf8f5;
            resize: vertical;
            min-height: 100px;
            transition: 0.2s;
        }
        .comment-form textarea:focus {
            outline: none;
            border-color: #b8860b;
            background: #fff;
        }
        .comment-form .form-row {
            display: flex;
            gap: 0.8rem;
            flex-wrap: wrap;
            margin-top: 0.8rem;
        }
        .comment-form input[type="text"] {
            flex: 1;
            min-width: 140px;
            padding: 0.7rem 1.2rem;
            border: 2px solid #ddd2c2;
            border-radius: 40px;
            font-size: 0.95rem;
            background: #faf8f5;
        }
        .comment-form input[type="text"]:focus {
            outline: none;
            border-color: #b8860b;
        }
        .comment-form button {
            padding: 0.7rem 2rem;
            background: #0a1a2b;
            color: #fff;
            border: none;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
        }
        .comment-form button:hover {
            background: #1a2a3b;
        }
        .score-stars {
            display: flex;
            gap: 0.4rem;
            font-size: 2rem;
            color: #ddd2c2;
            cursor: pointer;
            margin: 0.6rem 0 1rem;
            flex-wrap: wrap;
        }
        .score-stars i {
            transition: 0.15s;
        }
        .score-stars i.active,
        .score-stars i:hover {
            color: #f5c542;
        }
        .score-stars i:hover~i {
            color: #ddd2c2;
        }
        .score-display {
            font-weight: 600;
            color: #0a1a2b;
            margin-left: 0.6rem;
        }
        friend-link {
            display: block;
            background: #0f2a3f;
            color: #e8ddd0;
            padding: 2rem 1.5rem;
            border-radius: 20px;
            margin-top: 2rem;
        }
        friend-link .fl-head {
            font-size: 1.2rem;
            font-weight: 700;
            color: #f5d742;
            margin-bottom: 0.8rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        friend-link .fl-list {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem 1.5rem;
        }
        friend-link a {
            color: #e8ddd0;
            text-decoration: none;
            padding: 0.2rem 0;
            border-bottom: 1px solid transparent;
            transition: 0.2s;
        }
        friend-link a:hover {
            color: #f5d742;
            border-bottom-color: #f5d742;
        }
        .site-footer {
            background: #0a1a2b;
            color: #b8a898;
            padding: 1.8rem 1.5rem;
            text-align: center;
            font-size: 0.9rem;
            border-top: 2px solid #f5d74230;
        }
        .site-footer .copyright {
            max-width: 1280px;
            margin: 0 auto;
        }
        .site-footer a {
            color: #e8ddd0;
            text-decoration: none;
        }
        .site-footer a:hover {
            color: #f5d742;
        }
        @media(max-width:768px) {
            .header-inner {
                padding: 0.6rem 0;
            }
            .my-logo {
                font-size: 1.3rem;
            }
            .my-logo i {
                font-size: 1.5rem;
            }
            .nav-toggle {
                display: block;
            }
            .primary-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                margin-top: 0.8rem;
                gap: 0.2rem;
                padding-bottom: 0.6rem;
            }
            .primary-nav.open {
                display: flex;
            }
            .primary-nav a {
                padding: 0.6rem 1rem;
                border-radius: 10px;
            }
            h1 {
                font-size: 1.9rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            .page-wrap {
                padding: 1.2rem 1rem 2rem;
                gap: 1.5rem;
            }
            .interactive-section {
                padding: 1.4rem;
            }
            .breadcrumb-wrap {
                padding: 0.4rem 1rem;
                font-size: 0.75rem;
            }
            .sidebar {
                position: static;
                padding: 1.2rem;
            }
        }
        @media(max-width:480px) {
            .search-form button {
                width: 100%;
                justify-content: center;
            }
            .comment-form .form-row {
                flex-direction: column;
            }
            .score-stars {
                font-size: 1.6rem;
            }
            .highlight-box {
                padding: 1rem 1.2rem;
            }
        }
        .last-updated {
            display: inline-block;
            background: #ece7df;
            padding: 0.3rem 1rem;
            border-radius: 30px;
            font-size: 0.85rem;
            color: #5a4a3a;
            margin-bottom: 1.2rem;
        }
        .last-updated i {
            margin-right: 0.3rem;
            color: #b8860b;
        }
        .toc {
            background: #f9f5ed;
            border-radius: 16px;
            padding: 1.2rem 1.8rem;
            margin: 1.5rem 0 2rem;
            border: 1px solid #e5dbcd;
        }
        .toc summary {
            font-weight: 700;
            font-size: 1.1rem;
            cursor: pointer;
            color: #0a1a2b;
        }
        .toc ol {
            margin: 0.8rem 0 0 1.2rem;
        }
        .toc a {
            text-decoration: none;
            color: #3a2a1a;
        }
        .toc a:hover {
            text-decoration: underline;
        }
        .btn-top {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            background: #0a1a2b;
            color: #f5d742;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            text-decoration: none;
            font-size: 1.3rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
            transition: 0.2s;
            z-index: 50;
            border: 2px solid #f5d74230;
        }
        .btn-top:hover {
            background: #f5d742;
            color: #0a1a2b;
            transform: translateY(-3px);
        }
        @media(max-width:600px) {
            .btn-top {
                bottom: 1rem;
                right: 1rem;
                width: 40px;
                height: 40px;
                font-size: 1rem;
            }
        }