*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
            background: #f4f7fa;
            color: #1e2a3a;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        a {
            color: #0077b6;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover,
        a:focus {
            color: #023e8a;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: #0b1a2a;
            margin-top: 1.8rem;
            margin-bottom: 0.8rem;
        }
        h1 {
            font-size: 2.4rem;
            margin-top: 0.2rem;
        }
        h2 {
            font-size: 1.9rem;
            border-bottom: 3px solid #ff6b35;
            padding-bottom: 0.3rem;
            display: inline-block;
        }
        h3 {
            font-size: 1.5rem;
        }
        h4 {
            font-size: 1.2rem;
            font-weight: 600;
        }
        p {
            margin-bottom: 1.2rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.2rem;
        }
        .site-header {
            background: linear-gradient(135deg, #0b1a2a 0%, #1a3a4a 100%);
            color: #fff;
            padding: 0.8rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 18px rgba(0, 0, 0, 0.15);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            background: linear-gradient(135deg, #ff6b35, #f9c74f);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
            text-shadow: none;
            transition: transform 0.25s ease;
        }
        .my-logo:hover {
            transform: scale(1.02);
            text-decoration: none;
        }
        .my-logo i {
            -webkit-text-fill-color: #ff6b35;
            margin-right: 0.3rem;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid #ff6b35;
            color: #fff;
            font-size: 1.6rem;
            padding: 0.3rem 0.8rem;
            border-radius: 6px;
            cursor: pointer;
            transition: background 0.25s ease;
        }
        .nav-toggle:hover {
            background: rgba(255, 107, 53, 0.2);
        }
        .main-nav {
            display: flex;
            gap: 0.2rem;
            flex-wrap: wrap;
            align-items: center;
        }
        .main-nav a {
            color: #e0e8f0;
            padding: 0.5rem 1rem;
            border-radius: 30px;
            font-weight: 500;
            font-size: 0.95rem;
            transition: background 0.25s ease, color 0.25s ease;
        }
        .main-nav a:hover {
            background: rgba(255, 107, 53, 0.2);
            color: #ff6b35;
            text-decoration: none;
        }
        .main-nav a.active {
            background: #ff6b35;
            color: #fff;
        }
        .breadcrumb {
            background: #e9edf2;
            padding: 0.6rem 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #d0d7de;
        }
        .breadcrumb ul {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 0.6rem;
            padding: 0;
            margin: 0;
        }
        .breadcrumb ul li+li::before {
            content: "›";
            margin-right: 0.5rem;
            color: #6b7a8f;
            font-weight: 600;
        }
        .breadcrumb a {
            color: #0077b6;
        }
        .breadcrumb .current {
            color: #1e2a3a;
            font-weight: 600;
        }
        .search-section {
            background: #fff;
            padding: 1.5rem 0;
            border-bottom: 1px solid #d0d7de;
        }
        .search-form {
            display: flex;
            gap: 0.6rem;
            max-width: 600px;
            margin: 0 auto;
            flex-wrap: wrap;
        }
        .search-form input {
            flex: 1;
            min-width: 180px;
            padding: 0.75rem 1.2rem;
            border: 2px solid #d0d7de;
            border-radius: 40px;
            font-size: 1rem;
            outline: none;
            transition: border-color 0.25s ease;
        }
        .search-form input:focus {
            border-color: #ff6b35;
        }
        .search-form button {
            background: #ff6b35;
            color: #fff;
            border: none;
            padding: 0.75rem 1.8rem;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s ease, transform 0.15s ease;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .search-form button:hover {
            background: #e85d2c;
            transform: scale(1.02);
        }
        .hero {
            background: linear-gradient(135deg, #0f2a3a, #1b4a5a);
            color: #fff;
            padding: 2.8rem 0 2.4rem;
            text-align: center;
        }
        .hero h1 {
            color: #fff;
            font-size: 2.8rem;
            margin-bottom: 0.6rem;
            text-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
        }
        .hero p {
            font-size: 1.2rem;
            max-width: 750px;
            margin: 0 auto 1.2rem;
            opacity: 0.92;
        }
        .hero .last-updated {
            display: inline-block;
            background: rgba(255, 255, 255, 0.12);
            padding: 0.3rem 1.2rem;
            border-radius: 30px;
            font-size: 0.9rem;
            color: #f9c74f;
        }
        .hero .last-updated i {
            margin-right: 0.4rem;
        }
        .main-content {
            background: #fff;
            padding: 2.4rem 0 3rem;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.4rem;
        }
        .content-body {
            min-width: 0;
        }
        .sidebar {
            position: sticky;
            top: 110px;
            align-self: start;
            background: #f8fafc;
            border-radius: 16px;
            padding: 1.6rem;
            border: 1px solid #e2e8f0;
        }
        .sidebar h3 {
            font-size: 1.2rem;
            margin-top: 0;
            border-bottom: 2px solid #ff6b35;
            padding-bottom: 0.4rem;
            margin-bottom: 1rem;
        }
        .sidebar ul {
            list-style: none;
            padding: 0;
        }
        .sidebar ul li {
            padding: 0.4rem 0;
            border-bottom: 1px solid #edf2f7;
        }
        .sidebar ul li a {
            color: #1e2a3a;
            font-weight: 500;
        }
        .sidebar ul li a:hover {
            color: #ff6b35;
        }
        .featured-image {
            margin: 2rem 0;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.08);
        }
        .featured-image img {
            width: 100%;
            height: auto;
            display: block;
        }
        .featured-image figcaption {
            background: #f1f5f9;
            padding: 0.6rem 1.2rem;
            font-size: 0.9rem;
            color: #475569;
            font-style: italic;
        }
        .feedback-section {
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 2px solid #e2e8f0;
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
        }
        .comment-box,
        .rating-box {
            background: #f8fafc;
            border-radius: 16px;
            padding: 1.6rem;
            border: 1px solid #e2e8f0;
        }
        .comment-box h3,
        .rating-box h3 {
            margin-top: 0;
            font-size: 1.3rem;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .comment-box form,
        .rating-box form {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
            margin-top: 0.8rem;
        }
        .comment-box input,
        .comment-box textarea,
        .rating-box select {
            padding: 0.7rem 1rem;
            border: 2px solid #d0d7de;
            border-radius: 10px;
            font-size: 0.95rem;
            outline: none;
            transition: border-color 0.25s ease;
            font-family: inherit;
        }
        .comment-box input:focus,
        .comment-box textarea:focus,
        .rating-box select:focus {
            border-color: #ff6b35;
        }
        .comment-box textarea {
            min-height: 90px;
            resize: vertical;
        }
        .comment-box button,
        .rating-box button {
            background: #0077b6;
            color: #fff;
            border: none;
            padding: 0.7rem 1.6rem;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s ease, transform 0.15s ease;
            align-self: flex-start;
        }
        .comment-box button:hover,
        .rating-box button:hover {
            background: #023e8a;
            transform: scale(1.02);
        }
        .star-display {
            display: flex;
            gap: 0.4rem;
            font-size: 1.6rem;
            color: #f9c74f;
        }
        friend-link {
            display: block;
            background: #0b1a2a;
            color: #e0e8f0;
            padding: 2rem 0;
            margin-top: 2rem;
        }
        friend-link .container {
            display: flex;
            flex-wrap: wrap;
            gap: 1.2rem 2.4rem;
            justify-content: center;
        }
        friend-link a {
            color: #f9c74f;
            font-weight: 500;
        }
        friend-link a:hover {
            color: #ff6b35;
        }
        .site-footer {
            background: #07121c;
            color: #a0b0c0;
            padding: 1.8rem 0;
            text-align: center;
            font-size: 0.9rem;
        }
        .site-footer p {
            margin-bottom: 0.3rem;
        }
        .site-footer .copyright {
            color: #6b8a9a;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                order: 2;
            }
            .feedback-grid {
                grid-template-columns: 1fr;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                padding-top: 0.8rem;
                gap: 0.1rem;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 0.6rem 1rem;
                border-radius: 8px;
            }
            .header-inner {
                align-items: center;
            }
            .my-logo {
                font-size: 1.5rem;
            }
            .hero {
                padding: 2rem 0;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                justify-content: center;
            }
            .breadcrumb ul {
                font-size: 0.8rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 0.8rem;
            }
            h1 {
                font-size: 1.6rem;
            }
            h2 {
                font-size: 1.3rem;
            }
            .hero h1 {
                font-size: 1.5rem;
            }
            .comment-box button,
            .rating-box button {
                width: 100%;
                text-align: center;
            }
        }
        .text-muted {
            color: #6b7a8f;
        }
        .mt-2 {
            margin-top: 1.2rem;
        }
        .mb-1 {
            margin-bottom: 0.6rem;
        }
        .flex-center {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .badge {
            display: inline-block;
            background: #ff6b35;
            color: #fff;
            padding: 0.15rem 0.8rem;
            border-radius: 30px;
            font-size: 0.75rem;
            font-weight: 600;
        }