*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        :root {
            --primary: #1a2a3a;
            --primary-light: #2c3e50;
            --accent: #e67e22;
            --accent-hover: #d35400;
            --bg: #f8f6f2;
            --card-bg: #ffffff;
            --text: #1e1e1e;
            --text-light: #555;
            --border: #ddd;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            --radius: 12px;
            --font: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --max-width: 1200px;
            --header-bg: #0f1a2a;
            --footer-bg: #0f1a2a;
            --breadcrumb-bg: #ece8e0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            padding-top: 70px;
        }
        a {
            color: var(--accent);
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: var(--accent-hover);
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 8px;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: var(--header-bg);
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
            padding: 0 20px;
            height: 70px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .my-logo i {
            color: var(--accent);
            font-size: 1.8rem;
        }
        .my-logo span {
            background: linear-gradient(135deg, #f39c12, #e67e22);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .my-logo:hover {
            text-decoration: none;
            opacity: 0.95;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 24px;
            list-style: none;
        }
        .nav-menu li a {
            color: #eee;
            font-size: 0.95rem;
            font-weight: 500;
            padding: 6px 0;
            border-bottom: 2px solid transparent;
            transition: 0.2s;
        }
        .nav-menu li a:hover {
            color: #fff;
            border-bottom-color: var(--accent);
            text-decoration: none;
        }
        .breadcrumb-wrap {
            background: var(--breadcrumb-bg);
            padding: 12px 0;
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 6px 10px;
            font-size: 0.9rem;
            color: var(--text-light);
        }
        .breadcrumb a {
            color: var(--primary-light);
        }
        .breadcrumb i {
            font-size: 0.7rem;
            color: #999;
        }
        .breadcrumb .current {
            color: var(--text);
            font-weight: 600;
        }
        .page-wrap {
            padding: 40px 0 60px;
        }
        .featured-img {
            margin: 30px 0 40px;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
        }
        .featured-img img {
            width: 100%;
            max-height: 480px;
            object-fit: cover;
        }
        .featured-img figcaption {
            background: var(--card-bg);
            padding: 12px 20px;
            font-size: 0.85rem;
            color: var(--text-light);
            border-top: 1px solid var(--border);
        }
        h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 12px;
            color: var(--primary);
        }
        h1 i {
            color: var(--accent);
        }
        .subtitle {
            font-size: 1.15rem;
            color: var(--text-light);
            margin-bottom: 8px;
            font-weight: 400;
        }
        .last-updated {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            padding: 4px 16px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 20px;
        }
        .last-updated i {
            margin-right: 6px;
        }
        h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-top: 50px;
            margin-bottom: 16px;
            color: var(--primary);
            border-left: 5px solid var(--accent);
            padding-left: 18px;
        }
        h2 i {
            color: var(--accent);
            margin-right: 8px;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 600;
            margin-top: 36px;
            margin-bottom: 12px;
            color: var(--primary-light);
        }
        h3 i {
            color: var(--accent);
            margin-right: 6px;
        }
        h4 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-top: 26px;
            margin-bottom: 8px;
            color: var(--text);
        }
        p {
            margin-bottom: 18px;
            font-size: 1.05rem;
            color: #2c2c2c;
        }
        .highlight-box {
            background: var(--card-bg);
            border-left: 4px solid var(--accent);
            padding: 20px 24px;
            border-radius: 0 var(--radius) var(--radius) 0;
            margin: 28px 0;
            box-shadow: var(--shadow);
        }
        .highlight-box i {
            color: var(--accent);
            margin-right: 8px;
        }
        ul,
        ol {
            margin-bottom: 20px;
            padding-left: 28px;
        }
        ul li,
        ol li {
            margin-bottom: 8px;
            font-size: 1.05rem;
        }
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
            margin: 32px 0;
        }
        .card {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
        }
        .card i {
            font-size: 2rem;
            color: var(--accent);
            margin-bottom: 12px;
        }
        .card h4 {
            margin-top: 0;
        }
        .card p {
            font-size: 0.98rem;
            color: var(--text-light);
        }
        .table-wrap {
            overflow-x: auto;
            margin: 28px 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            background: var(--card-bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            font-size: 0.98rem;
        }
        th {
            background: var(--primary);
            color: #fff;
            padding: 14px 16px;
            text-align: left;
            font-weight: 600;
        }
        td {
            padding: 12px 16px;
            border-bottom: 1px solid var(--border);
        }
        tr:last-child td {
            border-bottom: none;
        }
        tr:hover td {
            background: #f9f7f3;
        }
        .interactive-section {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 32px 28px;
            margin: 48px 0;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
        }
        .interactive-section h2 {
            margin-top: 0;
            border-left-color: var(--accent);
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--primary);
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid var(--border);
            border-radius: 8px;
            font-size: 1rem;
            font-family: var(--font);
            background: #fafafa;
            transition: border 0.2s;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            outline: none;
            border-color: var(--accent);
            background: #fff;
        }
        .form-group textarea {
            min-height: 100px;
            resize: vertical;
        }
        .btn {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            border: none;
            padding: 12px 32px;
            border-radius: 50px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s, transform 0.1s;
        }
        .btn:hover {
            background: var(--accent-hover);
            transform: scale(1.02);
        }
        .btn i {
            margin-right: 8px;
        }
        .star-rating {
            display: flex;
            gap: 8px;
            font-size: 1.8rem;
            color: #ccc;
            cursor: pointer;
        }
        .star-rating i {
            transition: color 0.2s, transform 0.1s;
        }
        .star-rating i:hover,
        .star-rating i.active {
            color: #f1c40f;
            transform: scale(1.1);
        }
        friend-link {
            display: block;
            padding: 28px 0 12px;
            border-top: 2px solid rgba(255, 255, 255, 0.1);
        }
        friend-link a {
            color: #bbb;
            margin: 0 18px 8px 0;
            display: inline-block;
            font-size: 0.95rem;
            transition: color 0.2s;
        }
        friend-link a:hover {
            color: #fff;
        }
        .site-footer {
            background: var(--footer-bg);
            color: #ccc;
            padding: 40px 0 30px;
            font-size: 0.95rem;
        }
        .site-footer .container {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .site-footer .copyright {
            font-size: 0.88rem;
            color: #888;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 18px;
            text-align: center;
        }
        .site-footer .copyright i {
            color: var(--accent);
        }
        @media (max-width: 900px) {
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background: var(--header-bg);
                flex-direction: column;
                gap: 0;
                padding: 8px 0 20px;
                box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
                border-top: 1px solid rgba(255, 255, 255, 0.05);
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu li {
                width: 100%;
                text-align: center;
            }
            .nav-menu li a {
                display: block;
                padding: 14px 20px;
                border-bottom: none;
                font-size: 1.05rem;
            }
            .nav-menu li a:hover {
                background: rgba(255, 255, 255, 0.05);
                border-bottom: none;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            h3 {
                font-size: 1.3rem;
            }
            .page-wrap {
                padding: 20px 0 40px;
            }
            .card-grid {
                grid-template-columns: 1fr;
            }
            .interactive-section {
                padding: 20px 16px;
            }
        }
        @media (max-width: 480px) {
            body {
                padding-top: 60px;
            }
            .site-header {
                height: 60px;
                padding: 0 12px;
            }
            .my-logo {
                font-size: 1.25rem;
            }
            .my-logo i {
                font-size: 1.3rem;
            }
            h1 {
                font-size: 1.6rem;
            }
            h2 {
                font-size: 1.35rem;
                padding-left: 12px;
            }
            .container {
                padding: 0 12px;
            }
            .breadcrumb {
                font-size: 0.78rem;
                gap: 4px 6px;
            }
            .btn {
                padding: 10px 22px;
                font-size: 0.95rem;
            }
            .star-rating {
                font-size: 1.5rem;
            }
            .featured-img {
                margin: 16px 0 24px;
            }
        }
        @media (min-width: 901px) {
            .nav-menu {
                display: flex !important;
            }
        }
        .text-accent {
            color: var(--accent);
        }
        .fw-700 {
            font-weight: 700;
        }
        .mt-0 {
            margin-top: 0;
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .flex-between {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
        }
        .gap-8 {
            gap: 8px;
        }
        .emoji-lg {
            font-size: 1.6rem;
        }