*,
        *::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, sans-serif;
            background: #f8f7f4;
            color: #1e1e1e;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        a {
            color: #0057a3;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover {
            color: #e8491d;
            text-decoration: underline;
        }
        ul,
        ol {
            padding-left: 1.5rem;
            margin: 1rem 0;
        }
        li {
            margin-bottom: 0.5rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: #0b1d2e;
            padding: 16px 0;
            border-bottom: 4px solid #e8491d;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
        }
        .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: #ffffff;
            letter-spacing: -0.5px;
            text-transform: uppercase;
            background: linear-gradient(135deg, #f7971e, #ffd200);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: none;
            transition: transform 0.3s ease;
        }
        .my-logo:hover {
            transform: scale(1.02);
            text-decoration: none;
        }
        .my-logo small {
            font-size: 0.6rem;
            display: block;
            -webkit-text-fill-color: #ccc;
            color: #ccc;
            letter-spacing: 2px;
            font-weight: 400;
        }
        .site-header .logo-link {
            text-decoration: none;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .main-nav a {
            color: #e0e0e0;
            font-size: 0.95rem;
            font-weight: 500;
            padding: 8px 14px;
            border-radius: 30px;
            transition: background 0.25s, color 0.25s;
            white-space: nowrap;
        }
        .main-nav a:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #ffd200;
            text-decoration: none;
        }
        .main-nav a.active {
            background: #e8491d;
            color: #fff;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 4px 10px;
            transition: color 0.2s;
        }
        .hamburger:hover {
            color: #ffd200;
        }
        .breadcrumb {
            background: #eae7e0;
            padding: 12px 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #d6d2c8;
        }
        .breadcrumb ul {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
            padding: 0;
            margin: 0;
        }
        .breadcrumb ul li+li::before {
            content: "›";
            margin-right: 10px;
            color: #888;
        }
        .breadcrumb a {
            color: #0057a3;
        }
        .breadcrumb .current {
            color: #555;
            font-weight: 600;
        }
        .content-wrap {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 40px 0;
        }
        .main-article {
            min-width: 0;
        }
        .sidebar {
            min-width: 0;
        }
        h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 1.2rem;
            color: #0b1d2e;
            border-left: 6px solid #e8491d;
            padding-left: 20px;
        }
        h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-top: 2.8rem;
            margin-bottom: 1rem;
            color: #0b1d2e;
            border-bottom: 2px solid #e0dcd4;
            padding-bottom: 8px;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 600;
            margin-top: 2rem;
            margin-bottom: 0.8rem;
            color: #1e3a5a;
        }
        h4 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-top: 1.5rem;
            margin-bottom: 0.6rem;
            color: #2a4a6a;
        }
        p {
            margin-bottom: 1.2rem;
            font-size: 1.05rem;
            color: #2a2a2a;
        }
        .lead {
            font-size: 1.25rem;
            font-weight: 400;
            color: #3a3a3a;
            background: #f0ede8;
            padding: 20px 24px;
            border-radius: 12px;
            border-left: 4px solid #e8491d;
        }
        .highlight-box {
            background: #eef4fa;
            border-radius: 12px;
            padding: 20px 24px;
            margin: 1.5rem 0;
            border: 1px solid #c8d8e8;
        }
        .highlight-box strong {
            color: #0057a3;
        }
        .featured-image {
            margin: 2rem 0;
            border-radius: 14px;
            overflow: hidden;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
        }
        .featured-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }
        .featured-image figcaption {
            background: #f0ede8;
            padding: 10px 16px;
            font-size: 0.9rem;
            color: #555;
            font-style: italic;
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
            font-size: 0.98rem;
            background: #fff;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.06);
        }
        .data-table th {
            background: #0b1d2e;
            color: #fff;
            padding: 12px 16px;
            text-align: left;
            font-weight: 600;
        }
        .data-table td {
            padding: 10px 16px;
            border-bottom: 1px solid #e0dcd4;
        }
        .data-table tr:last-child td {
            border-bottom: none;
        }
        .data-table tr:hover td {
            background: #f5f2ed;
        }
        .search-box {
            background: #fff;
            border-radius: 40px;
            display: flex;
            align-items: center;
            overflow: hidden;
            border: 2px solid #d6d2c8;
            transition: border-color 0.3s;
            max-width: 500px;
            margin: 1.5rem 0;
        }
        .search-box:focus-within {
            border-color: #0057a3;
        }
        .search-box input {
            flex: 1;
            border: none;
            padding: 14px 20px;
            font-size: 1rem;
            outline: none;
            background: transparent;
        }
        .search-box button {
            background: #0057a3;
            color: #fff;
            border: none;
            padding: 14px 24px;
            font-size: 1.1rem;
            cursor: pointer;
            transition: background 0.25s;
        }
        .search-box button:hover {
            background: #e8491d;
        }
        .interaction-section {
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 3px solid #e0dcd4;
        }
        .interaction-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
            margin-top: 1.5rem;
        }
        .card-form {
            background: #fff;
            padding: 24px 28px;
            border-radius: 16px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            border: 1px solid #e8e4dc;
        }
        .card-form h3 {
            margin-top: 0;
            font-size: 1.3rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .card-form label {
            display: block;
            font-weight: 600;
            margin-top: 16px;
            margin-bottom: 4px;
            font-size: 0.95rem;
        }
        .card-form input,
        .card-form textarea,
        .card-form select {
            width: 100%;
            padding: 12px 14px;
            border: 2px solid #ddd;
            border-radius: 10px;
            font-size: 1rem;
            font-family: inherit;
            transition: border-color 0.25s;
            background: #fafafa;
        }
        .card-form input:focus,
        .card-form textarea:focus,
        .card-form select:focus {
            border-color: #0057a3;
            outline: none;
            background: #fff;
        }
        .card-form textarea {
            min-height: 100px;
            resize: vertical;
        }
        .card-form .btn-submit {
            background: #e8491d;
            color: #fff;
            border: none;
            padding: 14px 28px;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            margin-top: 18px;
            transition: background 0.25s, transform 0.15s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .card-form .btn-submit:hover {
            background: #c73b14;
            transform: translateY(-2px);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 4px;
            margin-top: 6px;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 2rem;
            color: #ccc;
            cursor: pointer;
            transition: color 0.2s;
            margin-top: 0;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f5b342;
        }
        .sidebar-widget {
            background: #fff;
            border-radius: 16px;
            padding: 20px 22px;
            margin-bottom: 28px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
            border: 1px solid #e8e4dc;
        }
        .sidebar-widget h3 {
            font-size: 1.2rem;
            margin-top: 0;
            border-bottom: 2px solid #e0dcd4;
            padding-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-widget ul {
            list-style: none;
            padding: 0;
            margin: 12px 0 0;
        }
        .sidebar-widget ul li {
            padding: 8px 0;
            border-bottom: 1px dashed #e8e4dc;
        }
        .sidebar-widget ul li:last-child {
            border-bottom: none;
        }
        .sidebar-widget ul li a {
            font-weight: 500;
        }
        .site-footer {
            background: #0b1d2e;
            color: #ccc;
            padding: 40px 0 20px;
            margin-top: 40px;
            border-top: 4px solid #e8491d;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 30px;
            margin-bottom: 30px;
        }
        .site-footer h4 {
            color: #ffd200;
            margin-top: 0;
            font-size: 1.1rem;
        }
        .site-footer a {
            color: #bbb;
        }
        .site-footer a:hover {
            color: #ffd200;
        }
        .friend-link {
            display: block;
            padding: 8px 0;
            border-bottom: 1px solid #2a3a4a;
        }
        .friend-link:last-child {
            border-bottom: none;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #2a3a4a;
            font-size: 0.9rem;
            color: #888;
        }
        .copyright strong {
            color: #ddd;
        }
        @media (max-width: 1024px) {
            .content-wrap {
                grid-template-columns: 1fr;
            }
            .sidebar {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
        }
        @media (max-width: 820px) {
            .hamburger {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                background: #0b1d2e;
                padding: 12px 0 16px;
                border-top: 1px solid #2a3a4a;
                margin-top: 12px;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 12px 16px;
                border-radius: 0;
                border-bottom: 1px solid #1a2a3a;
            }
            .main-nav a:last-child {
                border-bottom: none;
            }
            .header-inner {
                align-items: center;
            }
            h1 {
                font-size: 2rem;
                padding-left: 14px;
            }
            h2 {
                font-size: 1.6rem;
            }
            h3 {
                font-size: 1.25rem;
            }
            .interaction-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .data-table {
                font-size: 0.85rem;
            }
            .data-table th,
            .data-table td {
                padding: 8px 10px;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 12px;
            }
            .my-logo {
                font-size: 1.3rem;
            }
            .search-box input {
                padding: 10px 14px;
                font-size: 0.9rem;
            }
            .search-box button {
                padding: 10px 16px;
            }
            .card-form {
                padding: 16px 18px;
            }
            .lead {
                font-size: 1.05rem;
                padding: 14px 16px;
            }
        }
        .emoji-lg {
            font-size: 1.4rem;
            margin-right: 6px;
        }
        .tag {
            display: inline-block;
            background: #e8e4dc;
            padding: 2px 12px;
            border-radius: 20px;
            font-size: 0.8rem;
            color: #555;
            font-weight: 500;
        }
        .last-updated {
            background: #eae7e0;
            padding: 8px 18px;
            border-radius: 30px;
            display: inline-block;
            font-size: 0.9rem;
            color: #555;
            margin-bottom: 1.5rem;
        }
        .last-updated i {
            margin-right: 6px;
            color: #0057a3;
        }
        .btn-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: #0b1d2e;
            color: #fff;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
            cursor: pointer;
            transition: background 0.25s, transform 0.2s;
            border: none;
            z-index: 999;
        }
        .btn-top:hover {
            background: #e8491d;
            transform: translateY(-4px);
        }
        @media (max-width: 600px) {
            .btn-top {
                bottom: 16px;
                right: 16px;
                width: 40px;
                height: 40px;
                font-size: 1rem;
            }
        }