*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, sans-serif;
            background: #f5f7fa;
            color: #1e293b;
            line-height: 1.7;
            font-size: 1.05rem;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: #1a237e;
            text-decoration: underline;
            transition: color 0.2s;
        }
        a:hover {
            color: #ff6f00;
        }
        ul,
        ol {
            padding-left: 1.5rem;
            margin: 1rem 0;
        }
        li {
            margin-bottom: 0.4rem;
        }
        .container {
            max-width: 1180px;
            margin: 0 auto;
            padding: 0 1.2rem;
        }
        .site-header {
            background: linear-gradient(145deg, #0f172a 0%, #1a237e 100%);
            color: #fff;
            padding: 0.6rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.8rem;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #ffd700, #ffb300);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.4rem;
            line-height: 1.2;
        }
        .my-logo i {
            -webkit-text-fill-color: #ffd700;
            font-size: 2rem;
        }
        .my-logo:hover {
            opacity: 0.9;
        }
        .nav-main {
            display: flex;
            align-items: center;
            gap: 0.3rem;
            flex-wrap: wrap;
        }
        .nav-main a {
            color: #e0e7ff;
            text-decoration: none;
            padding: 0.5rem 1rem;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all 0.25s;
            white-space: nowrap;
        }
        .nav-main a:hover,
        .nav-main a:focus {
            background: rgba(255, 215, 0, 0.18);
            color: #ffd700;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #ffd700;
            font-size: 2rem;
            cursor: pointer;
            padding: 0.2rem 0.6rem;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: rgba(255, 215, 0, 0.12);
        }
        .breadcrumb {
            background: #e9edf5;
            padding: 0.7rem 0;
            font-size: 0.92rem;
            border-bottom: 1px solid #d0d8e8;
        }
        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            padding: 0;
            margin: 0;
            gap: 0.4rem;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.5rem;
            color: #64748b;
            font-weight: 700;
        }
        .breadcrumb a {
            color: #1a237e;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb .current {
            color: #475569;
            font-weight: 600;
        }
        .hero {
            background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 100%);
            color: #fff;
            padding: 3rem 0 2.8rem;
            text-align: center;
            border-bottom: 6px solid #ffd700;
        }
        .hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            max-width: 900px;
            margin: 0 auto 1rem;
            background: linear-gradient(135deg, #ffd700, #ffe57f);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero p {
            font-size: 1.2rem;
            max-width: 750px;
            margin: 0 auto 1.6rem;
            color: #cbd5e1;
        }
        .hero .last-updated {
            display: inline-block;
            background: rgba(255, 215, 0, 0.15);
            padding: 0.3rem 1.2rem;
            border-radius: 50px;
            font-size: 0.9rem;
            color: #ffd700;
            border: 1px solid rgba(255, 215, 0, 0.2);
        }
        .search-section {
            background: #fff;
            padding: 1.5rem 0;
            border-bottom: 1px solid #e2e8f0;
        }
        .search-form {
            display: flex;
            max-width: 580px;
            margin: 0 auto;
            gap: 0.5rem;
            border-radius: 60px;
            overflow: hidden;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
            border: 1px solid #d0d8e8;
        }
        .search-form input {
            flex: 1;
            border: none;
            padding: 0.9rem 1.4rem;
            font-size: 1rem;
            outline: none;
            background: #fff;
        }
        .search-form button {
            background: #1a237e;
            color: #fff;
            border: none;
            padding: 0 1.6rem;
            font-size: 1.1rem;
            cursor: pointer;
            transition: background 0.25s;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .search-form button:hover {
            background: #ff6f00;
        }
        .main-content {
            padding: 2.5rem 0 3rem;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
        }
        @media (max-width: 920px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
        }
        .article-body h2 {
            font-size: 2rem;
            color: #0f172a;
            margin: 2.5rem 0 1rem 0;
            padding-bottom: 0.5rem;
            border-bottom: 4px solid #ffd700;
            display: inline-block;
        }
        .article-body h3 {
            font-size: 1.5rem;
            color: #1a237e;
            margin: 2rem 0 0.8rem 0;
        }
        .article-body h4 {
            font-size: 1.2rem;
            color: #334155;
            margin: 1.4rem 0 0.5rem 0;
            font-weight: 700;
        }
        .article-body p {
            margin-bottom: 1.2rem;
        }
        .article-body .highlight-box {
            background: #f1f5f9;
            border-left: 6px solid #ffd700;
            padding: 1.4rem 1.8rem;
            border-radius: 0 12px 12px 0;
            margin: 1.8rem 0;
        }
        .article-body .highlight-box strong {
            color: #1a237e;
        }
        .feature-img-wrap {
            margin: 2rem 0;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
        }
        .feature-img-wrap img {
            width: 100%;
            object-fit: cover;
        }
        .feature-img-wrap figcaption {
            background: #f8fafc;
            padding: 0.6rem 1rem;
            font-size: 0.9rem;
            color: #475569;
            text-align: center;
            border-top: 1px solid #e2e8f0;
        }
        .styled-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.8rem 0;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
        }
        .styled-table thead {
            background: #1a237e;
            color: #fff;
        }
        .styled-table th,
        .styled-table td {
            padding: 0.9rem 1.2rem;
            text-align: left;
            border-bottom: 1px solid #e2e8f0;
        }
        .styled-table tbody tr:hover {
            background: #f1f5f9;
        }
        .styled-table tbody tr:nth-child(even) {
            background: #f8fafc;
        }
        .sidebar {
            background: #fff;
            border-radius: 20px;
            padding: 1.8rem 1.5rem;
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.06);
            border: 1px solid #e9edf5;
            align-self: start;
            position: sticky;
            top: 5.5rem;
        }
        .sidebar h3 {
            font-size: 1.3rem;
            color: #0f172a;
            margin-bottom: 1.2rem;
            border-left: 4px solid #ffd700;
            padding-left: 0.8rem;
        }
        .sidebar ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .sidebar li {
            margin-bottom: 0.6rem;
        }
        .sidebar a {
            display: block;
            padding: 0.5rem 0.8rem;
            background: #f8fafc;
            border-radius: 10px;
            text-decoration: none;
            color: #1e293b;
            font-weight: 500;
            transition: all 0.2s;
            border-left: 3px solid transparent;
        }
        .sidebar a:hover {
            background: #eef2ff;
            border-left-color: #ffd700;
            color: #1a237e;
        }
        .interaction-section {
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 2px dashed #d0d8e8;
        }
        .interaction-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
        }
        @media (max-width: 700px) {
            .interaction-grid {
                grid-template-columns: 1fr;
            }
        }
        .comment-box,
        .rating-box {
            background: #fff;
            padding: 1.8rem;
            border-radius: 20px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
            border: 1px solid #e9edf5;
        }
        .comment-box h3,
        .rating-box h3 {
            font-size: 1.3rem;
            color: #0f172a;
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .comment-box textarea,
        .rating-box select,
        .rating-box input {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 1px solid #d0d8e8;
            border-radius: 12px;
            font-size: 1rem;
            font-family: inherit;
            outline: none;
            transition: border 0.2s;
        }
        .comment-box textarea:focus,
        .rating-box select:focus,
        .rating-box input:focus {
            border-color: #1a237e;
            box-shadow: 0 0 0 3px rgba(26, 35, 126, 0.12);
        }
        .comment-box textarea {
            min-height: 110px;
            resize: vertical;
        }
        .btn-primary {
            background: #1a237e;
            color: #fff;
            border: none;
            padding: 0.7rem 1.8rem;
            border-radius: 50px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .btn-primary:hover {
            background: #ff6f00;
            transform: scale(1.02);
        }
        .btn-primary:active {
            transform: scale(0.97);
        }
        .rating-stars {
            display: flex;
            gap: 0.4rem;
            margin: 0.6rem 0 1rem;
            font-size: 1.8rem;
            color: #ffc107;
            cursor: pointer;
        }
        .rating-stars i {
            transition: transform 0.2s;
        }
        .rating-stars i:hover {
            transform: scale(1.2);
        }
        friend-link {
            display: block;
            background: #f1f5f9;
            padding: 1.8rem 2rem;
            border-radius: 20px;
            margin: 2.5rem 0 1rem;
            border: 1px solid #e2e8f0;
        }
        friend-link h3 {
            font-size: 1.3rem;
            color: #0f172a;
            margin-bottom: 1rem;
        }
        friend-link ul {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem 1.5rem;
            list-style: none;
            padding: 0;
            margin: 0;
        }
        friend-link li {
            margin: 0;
        }
        friend-link a {
            color: #1a237e;
            text-decoration: none;
            font-weight: 500;
            padding: 0.2rem 0;
            border-bottom: 2px solid transparent;
            transition: border-color 0.2s;
        }
        friend-link a:hover {
            border-bottom-color: #ffd700;
        }
        .site-footer {
            background: #0f172a;
            color: #cbd5e1;
            padding: 2.5rem 0 1.8rem;
            margin-top: 2rem;
            border-top: 6px solid #ffd700;
        }
        .site-footer .copyright {
            text-align: center;
            font-size: 0.95rem;
            opacity: 0.85;
            margin-top: 1rem;
        }
        .site-footer .copyright strong {
            color: #ffd700;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .nav-main {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #0f172a;
                padding: 0.8rem 0 1.2rem;
                border-radius: 0 0 16px 16px;
                gap: 0.2rem;
            }
            .nav-main.open {
                display: flex;
            }
            .nav-main a {
                padding: 0.6rem 1.2rem;
                border-radius: 0;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .my-logo i {
                font-size: 1.5rem;
            }
            .article-body h2 {
                font-size: 1.6rem;
            }
            .article-body h3 {
                font-size: 1.25rem;
            }
            .sidebar {
                position: static;
                margin-top: 2rem;
            }
            .styled-table {
                font-size: 0.9rem;
            }
            .styled-table th,
            .styled-table td {
                padding: 0.6rem 0.8rem;
            }
            .interaction-grid {
                grid-template-columns: 1fr;
            }
            friend-link ul {
                flex-direction: column;
                gap: 0.4rem;
            }
        }
        @media (max-width: 480px) {
            .header-inner {
                flex-wrap: nowrap;
            }
            .hero h1 {
                font-size: 1.5rem;
            }
            .container {
                padding: 0 0.9rem;
            }
            .search-form input {
                padding: 0.7rem 1rem;
                font-size: 0.9rem;
            }
            .search-form button {
                padding: 0 1rem;
                font-size: 0.9rem;
            }
            .btn-primary {
                padding: 0.6rem 1.2rem;
                font-size: 0.9rem;
            }
        }
        .anchor-offset {
            scroll-margin-top: 5rem;
        }
        .text-gold {
            color: #ffd700;
        }
        .bg-soft-gold {
            background: #fffbe6;
        }
        .flex-center {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .mt-2 {
            margin-top: 1.2rem;
        }
        .mb-1 {
            margin-bottom: 0.8rem;
        }
        .gap-1 {
            gap: 0.8rem;
        }
        .fw-700 {
            font-weight: 700;
        }