*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', sans-serif;
            background: #f5f7fa;
            color: #1e293b;
            line-height: 1.8;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
            overflow-x: hidden;
        }
        a {
            color: #2563eb;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #1d4ed8;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            margin-top: 1.8em;
            margin-bottom: 0.6em;
            color: #0f172a;
        }
        h1 {
            font-size: 2.4rem;
            margin-top: 0.4em;
        }
        h2 {
            font-size: 1.8rem;
            border-bottom: 3px solid #e2e8f0;
            padding-bottom: 0.3em;
        }
        h3 {
            font-size: 1.4rem;
        }
        h4 {
            font-size: 1.15rem;
        }
        p {
            margin-bottom: 1.2em;
            font-size: 1rem;
            color: #334155;
        }
        ul,
        ol {
            margin: 0 0 1.5em 1.8em;
        }
        li {
            margin-bottom: 0.5em;
        }
        hr {
            border: none;
            border-top: 2px dashed #cbd5e1;
            margin: 2.5em 0;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 16px;
        }
        header {
            padding: 18px 0 10px 0;
            border-bottom: 2px solid #e2e8f0;
            background: #ffffff;
            position: sticky;
            top: 0;
            z-index: 100;
            backdrop-filter: blur(8px);
            background: rgba(255, 255, 255, 0.95);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: #0f172a;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #f59e0b, #d97706);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: inline-block;
        }
        .my-logo small {
            font-size: 0.9rem;
            font-weight: 400;
            color: #64748b;
            -webkit-text-fill-color: #64748b;
            letter-spacing: 0;
        }
        .my-logo:hover {
            opacity: 0.85;
        }
        nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        nav a {
            padding: 8px 14px;
            border-radius: 40px;
            font-weight: 500;
            font-size: 0.9rem;
            color: #1e293b;
            transition: background 0.2s, color 0.2s;
        }
        nav a:hover {
            background: #f1f5f9;
            color: #d97706;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            cursor: pointer;
            color: #1e293b;
            padding: 4px 8px;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: #f1f5f9;
        }
        .nav-links {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }
        .breadcrumb {
            padding: 12px 0 6px 0;
            font-size: 0.85rem;
            color: #64748b;
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            list-style: none;
            margin: 0;
        }
        .breadcrumb li {
            display: inline;
            margin: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            padding: 0 8px;
            color: #94a3b8;
        }
        .breadcrumb a {
            color: #2563eb;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .hero {
            background: linear-gradient(145deg, #1e293b, #0f172a);
            color: #f8fafc;
            padding: 48px 32px;
            border-radius: 24px;
            margin: 28px 0 36px 0;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 32px;
            box-shadow: 0 20px 40px -12px rgba(0, 0, 0, 0.35);
        }
        .hero-text {
            flex: 2 1 320px;
        }
        .hero-text h1 {
            font-size: 2.6rem;
            margin: 0 0 16px 0;
            color: #fbbf24;
            line-height: 1.2;
        }
        .hero-text p {
            color: #e2e8f0;
            font-size: 1.1rem;
            max-width: 640px;
        }
        .hero-img {
            flex: 1 1 260px;
            border-radius: 16px;
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.5);
        }
        .search-section {
            background: #ffffff;
            border-radius: 16px;
            padding: 28px 24px;
            margin-bottom: 36px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
            border: 1px solid #e2e8f0;
        }
        .search-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            align-items: center;
        }
        .search-form input {
            flex: 1 1 260px;
            padding: 14px 20px;
            border: 2px solid #e2e8f0;
            border-radius: 40px;
            font-size: 1rem;
            outline: none;
            transition: border 0.2s;
            background: #f8fafc;
        }
        .search-form input:focus {
            border-color: #f59e0b;
        }
        .search-form button {
            padding: 14px 32px;
            background: #f59e0b;
            color: #1e293b;
            font-weight: 700;
            border: none;
            border-radius: 40px;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .search-form button:hover {
            background: #d97706;
            transform: scale(1.02);
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
            margin: 40px 0;
        }
        @media (max-width: 920px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
        }
        .main-article {
            background: #ffffff;
            border-radius: 20px;
            padding: 32px 28px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
            border: 1px solid #eef2f6;
        }
        .main-article p {
            font-size: 1.05rem;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .sidebar-card {
            background: #ffffff;
            border-radius: 16px;
            padding: 24px 20px;
            border: 1px solid #eef2f6;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
        }
        .sidebar-card h3 {
            margin-top: 0;
            font-size: 1.2rem;
            border-bottom: 2px solid #f1f5f9;
            padding-bottom: 10px;
            margin-bottom: 16px;
        }
        .sidebar-card ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .sidebar-card li {
            padding: 8px 0;
            border-bottom: 1px solid #f1f5f9;
            margin: 0;
        }
        .sidebar-card li:last-child {
            border-bottom: none;
        }
        .sidebar-card a {
            font-weight: 500;
        }
        .featured-img-wrap {
            margin: 2em 0;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
        }
        .featured-img-wrap img {
            width: 100%;
            object-fit: cover;
        }
        .img-caption {
            font-size: 0.85rem;
            color: #64748b;
            text-align: center;
            padding: 10px 0 4px 0;
            font-style: italic;
        }
        .interaction-area {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            margin: 40px 0 20px 0;
            padding: 24px 0;
            border-top: 2px solid #e2e8f0;
            border-bottom: 2px solid #e2e8f0;
        }
        .rating-box,
        .comment-box {
            flex: 1 1 280px;
            background: #f8fafc;
            padding: 20px 24px;
            border-radius: 16px;
            border: 1px solid #e2e8f0;
        }
        .rating-box h4,
        .comment-box h4 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .star-rating {
            display: flex;
            gap: 6px;
            font-size: 1.8rem;
            cursor: pointer;
            color: #cbd5e1;
            transition: color 0.15s;
            margin: 10px 0 14px 0;
        }
        .star-rating i {
            transition: color 0.15s, transform 0.1s;
        }
        .star-rating i:hover,
        .star-rating i.active {
            color: #f59e0b;
            transform: scale(1.1);
        }
        .rating-box form,
        .comment-box form {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .rating-box input,
        .comment-box input,
        .comment-box textarea {
            padding: 12px 16px;
            border: 2px solid #e2e8f0;
            border-radius: 12px;
            font-size: 0.95rem;
            outline: none;
            transition: border 0.2s;
            font-family: inherit;
            background: #ffffff;
        }
        .rating-box input:focus,
        .comment-box input:focus,
        .comment-box textarea:focus {
            border-color: #f59e0b;
        }
        .comment-box textarea {
            min-height: 90px;
            resize: vertical;
        }
        .btn-submit {
            padding: 12px 24px;
            background: #2563eb;
            color: #fff;
            font-weight: 600;
            border: none;
            border-radius: 40px;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            font-size: 0.95rem;
            align-self: flex-start;
        }
        .btn-submit:hover {
            background: #1d4ed8;
            transform: scale(1.02);
        }
        footer {
            margin-top: 60px;
            padding: 40px 0 24px 0;
            border-top: 2px solid #e2e8f0;
            background: #ffffff;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-col h4 {
            margin-top: 0;
            font-size: 1.1rem;
            color: #0f172a;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col li {
            padding: 4px 0;
        }
        .footer-col a {
            color: #475569;
        }
        .footer-col a:hover {
            color: #d97706;
        }
        friend-link {
            display: block;
            padding: 18px 20px;
            background: #f1f5f9;
            border-radius: 14px;
            margin: 16px 0 24px 0;
            font-size: 0.95rem;
            border: 1px solid #e2e8f0;
        }
        friend-link a {
            display: inline-block;
            margin: 0 12px 4px 0;
            font-weight: 500;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #e2e8f0;
            color: #64748b;
            font-size: 0.9rem;
        }
        .copyright strong {
            color: #1e293b;
        }
        @media (max-width: 800px) {
            body {
                padding: 0 12px;
            }
            h1 {
                font-size: 1.9rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            .hero {
                padding: 28px 18px;
                flex-direction: column;
            }
            .hero-text h1 {
                font-size: 1.9rem;
            }
            .header-inner {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
            }
            .nav-links {
                display: none;
                width: 100%;
                flex-direction: column;
                background: #ffffff;
                padding: 16px 0 8px 0;
                border-top: 1px solid #e2e8f0;
                margin-top: 8px;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                padding: 12px 16px;
                border-radius: 12px;
            }
            .main-article {
                padding: 20px 16px;
            }
            .interaction-area {
                flex-direction: column;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form input {
                width: 100%;
            }
            .search-form button {
                width: 100%;
                justify-content: center;
            }
        }
        @media (min-width: 801px) {
            .nav-links {
                display: flex !important;
            }
        }
        .highlight-box {
            background: #fffbeb;
            border-left: 5px solid #f59e0b;
            padding: 18px 22px;
            border-radius: 12px;
            margin: 1.8em 0;
        }
        .highlight-box p {
            margin: 0;
            color: #1e293b;
        }
        .stat-badge {
            display: inline-block;
            background: #1e293b;
            color: #fbbf24;
            padding: 4px 14px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.85rem;
            letter-spacing: 0.3px;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.8em 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
        }
        th,
        td {
            padding: 12px 16px;
            border-bottom: 1px solid #e2e8f0;
            text-align: left;
        }
        th {
            background: #f1f5f9;
            font-weight: 600;
            color: #0f172a;
        }
        tr:hover td {
            background: #f8fafc;
        }
        .anchor-offset {
            scroll-margin-top: 100px;
        }