*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.8;
            color: #1a1a2e;
            background: #f8f9fa;
            padding: 0;
            margin: 0;
        }
        a {
            color: #1e6f9f;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover {
            color: #0d3b5c;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #0a1f2e 0%, #1a3a4a 100%);
            padding: 18px 0;
            border-bottom: 4px solid #f9a825;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px 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: 1.9rem;
            font-weight: 800;
            color: #ffffff;
            letter-spacing: 1px;
            text-shadow: 2px 2px 0 rgba(249, 168, 37, 0.5);
            transition: transform 0.2s ease;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .my-logo:hover {
            transform: scale(1.02);
            text-decoration: none;
            color: #f9a825;
        }
        .my-logo i {
            color: #f9a825;
            font-size: 2rem;
        }
        .nav-bar {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        .nav-bar a {
            color: #e0e7ec;
            font-size: 0.95rem;
            font-weight: 500;
            padding: 6px 14px;
            border-radius: 30px;
            transition: background 0.25s, color 0.25s;
            white-space: nowrap;
        }
        .nav-bar a:hover {
            background: rgba(249, 168, 37, 0.25);
            color: #f9a825;
            text-decoration: none;
        }
        .nav-bar a.active {
            background: #f9a825;
            color: #0a1f2e;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.9rem;
            color: #fff;
            cursor: pointer;
            padding: 4px 8px;
            transition: transform 0.2s;
        }
        .hamburger:hover {
            transform: scale(1.1);
        }
        .breadcrumb {
            background: #eef2f5;
            padding: 14px 0;
            border-bottom: 1px solid #dce3e9;
            font-size: 0.92rem;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 10px;
            align-items: center;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 10px;
            color: #7a8a9a;
            font-weight: 700;
        }
        .breadcrumb a {
            color: #1e6f9f;
        }
        .breadcrumb .current {
            color: #4a5a6a;
            font-weight: 600;
        }
        .main-content {
            padding: 40px 0 50px;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
        }
        .article-body {
            background: #ffffff;
            border-radius: 20px;
            padding: 40px 44px;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #0a1f2e;
            margin-bottom: 12px;
            line-height: 1.25;
            border-left: 6px solid #f9a825;
            padding-left: 20px;
        }
        h2 {
            font-size: 2.0rem;
            font-weight: 700;
            color: #0f2a3a;
            margin-top: 48px;
            margin-bottom: 18px;
            padding-bottom: 8px;
            border-bottom: 3px solid #e8edf1;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 600;
            color: #153b4f;
            margin-top: 32px;
            margin-bottom: 14px;
        }
        h4 {
            font-size: 1.2rem;
            font-weight: 600;
            color: #1e4d63;
            margin-top: 24px;
            margin-bottom: 10px;
        }
        p {
            margin-bottom: 18px;
            color: #2a3a4a;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 400;
            color: #1a3a4a;
            background: #f0f6fa;
            padding: 20px 24px;
            border-radius: 14px;
            border-left: 5px solid #f9a825;
            margin-bottom: 30px;
        }
        .meta-date {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: #6a7a8a;
            font-size: 0.95rem;
            background: #f0f3f5;
            padding: 6px 16px;
            border-radius: 30px;
            margin-bottom: 24px;
        }
        .featured-image {
            margin: 28px 0 32px;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 6px 28px rgba(0, 0, 0, 0.08);
        }
        .featured-image figcaption {
            background: #f0f4f7;
            padding: 12px 18px;
            font-size: 0.9rem;
            color: #4a5a6a;
            text-align: center;
            border-radius: 0 0 12px 12px;
        }
        ul,
        ol {
            margin: 0 0 20px 24px;
            color: #2a3a4a;
        }
        li {
            margin-bottom: 6px;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 24px 0 30px;
            border-radius: 14px;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
        }
        table {
            width: 100%;
            border-collapse: collapse;
            background: #fff;
            font-size: 0.95rem;
        }
        th {
            background: #0a1f2e;
            color: #fff;
            padding: 14px 18px;
            text-align: left;
            font-weight: 600;
        }
        td {
            padding: 13px 18px;
            border-bottom: 1px solid #e8edf1;
        }
        tr:nth-child(even) td {
            background: #f7f9fb;
        }
        tr:hover td {
            background: #f0f4f8;
        }
        .widget {
            background: #ffffff;
            border-radius: 18px;
            padding: 24px 22px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
        }
        .widget h3 {
            font-size: 1.3rem;
            margin-top: 0;
            margin-bottom: 16px;
            border-bottom: 3px solid #f9a825;
            padding-bottom: 8px;
            color: #0a1f2e;
        }
        .link-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .link-list li {
            padding: 8px 0;
            border-bottom: 1px solid #edf0f3;
            margin-bottom: 0;
        }
        .link-list li:last-child {
            border-bottom: none;
        }
        .link-list a {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 500;
            color: #1e6f9f;
        }
        .link-list a:hover {
            color: #0d3b5c;
            text-decoration: none;
        }
        .link-list a i {
            color: #f9a825;
            width: 18px;
            text-align: center;
        }
        .search-form {
            display: flex;
            gap: 8px;
            margin-top: 6px;
        }
        .search-form input {
            flex: 1;
            padding: 12px 16px;
            border: 2px solid #dce3e9;
            border-radius: 30px;
            font-size: 0.95rem;
            outline: none;
            transition: border 0.25s;
            background: #fafcfd;
        }
        .search-form input:focus {
            border-color: #f9a825;
        }
        .search-form button {
            background: #0a1f2e;
            color: #fff;
            border: none;
            padding: 0 22px;
            border-radius: 30px;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
        }
        .search-form button:hover {
            background: #153b4f;
            transform: scale(1.02);
        }
        .rating-stars {
            display: flex;
            gap: 6px;
            font-size: 1.8rem;
            color: #d0d7de;
            cursor: pointer;
            direction: rtl;
            justify-content: flex-end;
        }
        .rating-stars input {
            display: none;
        }
        .rating-stars label {
            transition: color 0.2s, transform 0.15s;
            cursor: pointer;
        }
        .rating-stars label:hover,
        .rating-stars label:hover~label,
        .rating-stars input:checked~label {
            color: #f9a825;
            transform: scale(1.1);
        }
        .rating-form {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-top: 10px;
        }
        .rating-form button {
            align-self: flex-start;
            background: #f9a825;
            color: #0a1f2e;
            font-weight: 700;
            border: none;
            padding: 10px 28px;
            border-radius: 30px;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
        }
        .rating-form button:hover {
            background: #e8951a;
            transform: scale(1.02);
        }
        .comment-form textarea {
            width: 100%;
            padding: 14px 18px;
            border: 2px solid #dce3e9;
            border-radius: 14px;
            font-size: 0.95rem;
            font-family: inherit;
            resize: vertical;
            min-height: 90px;
            outline: none;
            transition: border 0.25s;
            background: #fafcfd;
        }
        .comment-form textarea:focus {
            border-color: #f9a825;
        }
        .comment-form .form-row {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-top: 10px;
        }
        .comment-form .form-row input {
            flex: 1;
            min-width: 160px;
            padding: 11px 16px;
            border: 2px solid #dce3e9;
            border-radius: 30px;
            font-size: 0.92rem;
            outline: none;
            transition: border 0.25s;
            background: #fafcfd;
        }
        .comment-form .form-row input:focus {
            border-color: #f9a825;
        }
        .comment-form button {
            background: #0a1f2e;
            color: #fff;
            border: none;
            padding: 10px 32px;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
            margin-top: 10px;
        }
        .comment-form button:hover {
            background: #153b4f;
            transform: scale(1.02);
        }
        .site-footer {
            background: linear-gradient(135deg, #0a1f2e 0%, #1a3a4a 100%);
            color: #c8d6de;
            padding: 40px 0 20px;
            border-top: 4px solid #f9a825;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 28px;
        }
        .footer-col h4 {
            color: #f9a825;
            font-size: 1.1rem;
            margin-top: 0;
            margin-bottom: 14px;
            border-bottom: 2px solid rgba(249, 168, 37, 0.3);
            padding-bottom: 6px;
        }
        .footer-col p,
        .footer-col a {
            color: #b0c4d0;
            font-size: 0.92rem;
        }
        .footer-col a:hover {
            color: #f9a825;
        }
        friend-link {
            display: block;
            margin-top: 14px;
            padding: 10px 14px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: 10px;
            border-left: 3px solid #f9a825;
        }
        friend-link a {
            display: inline-block;
            margin-right: 16px;
            margin-bottom: 4px;
            color: #a0c0d0;
            font-size: 0.9rem;
        }
        friend-link a::before {
            content: "🔗 ";
            font-size: 0.8rem;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.88rem;
            color: #8aa0b0;
        }
        .copyright strong {
            color: #f9a825;
        }
        @media (max-width: 1024px) {
            .content-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .sidebar {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
        }
        @media (max-width: 820px) {
            .header-inner {
                flex-direction: row;
            }
            .hamburger {
                display: block;
            }
            .nav-bar {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #0a1f2e;
                padding: 12px 0 16px;
                border-radius: 0 0 16px 16px;
                gap: 4px;
                margin-top: 8px;
            }
            .nav-bar.open {
                display: flex;
            }
            .nav-bar a {
                padding: 10px 20px;
                width: 100%;
                text-align: left;
                border-radius: 0;
                border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            }
            .article-body {
                padding: 24px 18px;
            }
            h1 {
                font-size: 2.0rem;
                padding-left: 14px;
            }
            h2 {
                font-size: 1.6rem;
            }
            h3 {
                font-size: 1.3rem;
            }
            .sidebar {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 540px) {
            .container {
                padding: 0 14px;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .my-logo i {
                font-size: 1.4rem;
            }
            h1 {
                font-size: 1.6rem;
                padding-left: 10px;
                border-left-width: 4px;
            }
            h2 {
                font-size: 1.35rem;
            }
            h3 {
                font-size: 1.15rem;
            }
            .article-body {
                padding: 16px 12px;
            }
            .lead {
                font-size: 1.0rem;
                padding: 14px 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                padding: 10px 16px;
            }
            .comment-form .form-row {
                flex-direction: column;
            }
            .rating-stars {
                font-size: 1.5rem;
            }
        }
        .scroll-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: #f9a825;
            color: #0a1f2e;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
            transition: transform 0.25s, opacity 0.3s;
            opacity: 0;
            pointer-events: none;
            z-index: 999;
            border: none;
            cursor: pointer;
        }
        .scroll-top.visible {
            opacity: 1;
            pointer-events: auto;
        }
        .scroll-top:hover {
            transform: scale(1.1) translateY(-2px);
        }
        .highlight-box {
            background: #fef8e7;
            border-radius: 14px;
            padding: 20px 24px;
            border-left: 5px solid #f9a825;
            margin: 24px 0;
        }
        .highlight-box strong {
            color: #0a1f2e;
        }
        .insight-badge {
            display: inline-block;
            background: #f9a825;
            color: #0a1f2e;
            padding: 2px 14px;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }