* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
            background: #f4f7fb;
            color: #1a2634;
            line-height: 1.7;
            padding: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: #1a6b8a;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #0d3e52;
            text-decoration: underline;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        .site-header {
            background: linear-gradient(135deg, #0b2a3b 0%, #1a5f7a 100%);
            color: #fff;
            padding: 0.8rem 0;
            box-shadow: 0 4px 18px rgba(0, 0, 0, 0.15);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: #f0e9d0;
            text-shadow: 2px 2px 6px rgba(0, 0, 0, 0.3);
            transition: transform 0.2s;
        }
        .my-logo:hover {
            transform: scale(1.02);
            text-decoration: none;
            color: #ffecb3;
        }
        .my-logo span {
            color: #6fc2d9;
        }
        .nav-toggle {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: #fff;
            cursor: pointer;
            padding: 0.2rem 0.6rem;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.15);
        }
        .nav-menu {
            display: flex;
            gap: 0.2rem;
            flex-wrap: wrap;
            align-items: center;
        }
        .nav-menu a {
            color: #e6f0f5;
            padding: 0.5rem 1rem;
            border-radius: 30px;
            font-size: 0.95rem;
            font-weight: 500;
            transition: background 0.25s, color 0.25s;
            white-space: nowrap;
        }
        .nav-menu a:hover {
            background: rgba(255, 255, 255, 0.2);
            color: #fff;
            text-decoration: none;
        }
        .nav-menu a i {
            margin-right: 6px;
        }
        .breadcrumb {
            background: #e8edf3;
            padding: 0.6rem 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #d0d9e3;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem 0.2rem;
            padding: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin: 0 0.5rem;
            color: #6f7d8c;
        }
        .breadcrumb a {
            color: #1a6b8a;
        }
        .breadcrumb .current {
            color: #3d5166;
            font-weight: 600;
        }
        main {
            padding: 2rem 0 3rem;
        }
        .article-wrapper {
            background: #fff;
            border-radius: 24px;
            box-shadow: 0 8px 40px rgba(0, 0, 0, 0.06);
            padding: 2.5rem 2.8rem;
            margin-bottom: 2.5rem;
        }
        h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            color: #0b2a3b;
            margin-bottom: 0.5rem;
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: 2rem;
            font-weight: 700;
            color: #0f3e55;
            margin-top: 3rem;
            margin-bottom: 1rem;
            padding-bottom: 0.4rem;
            border-bottom: 3px solid #6fc2d9;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 600;
            color: #1a4b63;
            margin-top: 2.2rem;
            margin-bottom: 0.8rem;
        }
        h4 {
            font-size: 1.2rem;
            font-weight: 600;
            color: #255e7a;
            margin-top: 1.6rem;
            margin-bottom: 0.5rem;
        }
        p {
            margin-bottom: 1.2rem;
        }
        .article-wrapper img {
            border-radius: 16px;
            margin: 2rem 0;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.08);
            width: 100%;
            object-fit: cover;
        }
        .last-updated {
            display: inline-block;
            background: #eaf3f8;
            padding: 0.3rem 1.2rem;
            border-radius: 30px;
            font-size: 0.85rem;
            color: #2b5a72;
            margin-bottom: 1.5rem;
            font-weight: 500;
        }
        .last-updated i {
            margin-right: 6px;
        }
        .highlight-box {
            background: #f0f6fa;
            border-left: 5px solid #1a6b8a;
            padding: 1.5rem 2rem;
            border-radius: 12px;
            margin: 1.8rem 0;
        }
        .highlight-box p:last-child {
            margin-bottom: 0;
        }
        .search-section {
            background: #e8f0f5;
            border-radius: 18px;
            padding: 1.8rem 2rem;
            margin: 2.5rem 0;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 1rem;
        }
        .search-section label {
            font-weight: 600;
            color: #0b2a3b;
            font-size: 1.1rem;
        }
        .search-form {
            display: flex;
            flex: 1;
            min-width: 220px;
            gap: 0.5rem;
        }
        .search-form input {
            flex: 1;
            padding: 0.7rem 1.2rem;
            border: 2px solid #cbd7e3;
            border-radius: 40px;
            font-size: 1rem;
            outline: none;
            transition: border-color 0.3s;
        }
        .search-form input:focus {
            border-color: #1a6b8a;
        }
        .search-form button {
            background: #1a6b8a;
            color: #fff;
            border: none;
            border-radius: 40px;
            padding: 0.7rem 1.8rem;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
        }
        .search-form button:hover {
            background: #0d4b63;
            transform: scale(1.02);
        }
        .rating-section {
            background: #faf6ed;
            border-radius: 18px;
            padding: 1.8rem 2rem;
            margin: 2rem 0;
            border: 1px solid #e6dcc8;
        }
        .rating-stars {
            display: flex;
            gap: 0.3rem;
            font-size: 2rem;
            color: #d4c5a0;
            cursor: pointer;
            transition: color 0.2s;
            flex-wrap: wrap;
            margin: 0.5rem 0 0.8rem;
        }
        .rating-stars i {
            transition: color 0.15s, transform 0.15s;
        }
        .rating-stars i:hover,
        .rating-stars i.active {
            color: #f5b342;
            transform: scale(1.15);
        }
        .rating-form button {
            background: #1a6b8a;
            color: #fff;
            border: none;
            border-radius: 40px;
            padding: 0.6rem 2rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s;
            margin-top: 0.5rem;
        }
        .rating-form button:hover {
            background: #0d4b63;
        }
        .comments-section {
            margin: 2.5rem 0;
            background: #f8faff;
            border-radius: 18px;
            padding: 2rem;
            border: 1px solid #dce5ef;
        }
        .comments-section h3 {
            margin-top: 0;
        }
        .comment-form textarea {
            width: 100%;
            padding: 1rem;
            border: 2px solid #cbd7e3;
            border-radius: 12px;
            font-size: 1rem;
            font-family: inherit;
            resize: vertical;
            min-height: 100px;
            transition: border-color 0.3s;
        }
        .comment-form textarea:focus {
            border-color: #1a6b8a;
            outline: none;
        }
        .comment-form .form-row {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin: 0.8rem 0;
        }
        .comment-form .form-row input {
            flex: 1;
            min-width: 180px;
            padding: 0.7rem 1.2rem;
            border: 2px solid #cbd7e3;
            border-radius: 40px;
            font-size: 1rem;
            transition: border-color 0.3s;
        }
        .comment-form .form-row input:focus {
            border-color: #1a6b8a;
            outline: none;
        }
        .comment-form button {
            background: #1a6b8a;
            color: #fff;
            border: none;
            border-radius: 40px;
            padding: 0.7rem 2.5rem;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.25s;
        }
        .comment-form button:hover {
            background: #0d4b63;
        }
        friend-link {
            display: block;
            background: #f0f4f9;
            border-radius: 16px;
            padding: 1.8rem 2rem;
            margin: 2rem 0 1rem;
            border: 1px solid #d0dce8;
        }
        friend-link::before {
            content: "🔗 Friend Links";
            display: block;
            font-weight: 700;
            font-size: 1.3rem;
            color: #0b2a3b;
            margin-bottom: 0.8rem;
        }
        friend-link a {
            display: inline-block;
            margin: 0.3rem 1rem 0.3rem 0;
            padding: 0.3rem 0.8rem;
            background: #e3ecf3;
            border-radius: 30px;
            font-size: 0.95rem;
            transition: background 0.2s;
        }
        friend-link a:hover {
            background: #c7d8e6;
            text-decoration: none;
        }
        .site-footer {
            background: #0b2a3b;
            color: #cbd9e3;
            padding: 2.5rem 0 1.8rem;
            margin-top: 2rem;
        }
        .footer-inner {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 1.5rem;
        }
        .footer-inner .copyright {
            font-size: 0.9rem;
            opacity: 0.85;
        }
        .footer-inner .copyright strong {
            color: #e6f0f5;
        }
        @media (max-width: 992px) {
            .article-wrapper {
                padding: 1.8rem 1.5rem;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            h3 {
                font-size: 1.3rem;
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                width: 100%;
                flex-direction: column;
                background: rgba(11, 42, 59, 0.98);
                padding: 1rem 0.5rem;
                border-radius: 16px;
                margin-top: 0.8rem;
                gap: 0.2rem;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu a {
                padding: 0.7rem 1.2rem;
                border-radius: 12px;
                width: 100%;
                text-align: center;
            }
            .header-inner {
                align-items: center;
            }
            .my-logo {
                font-size: 1.5rem;
            }
            .article-wrapper {
                padding: 1.2rem 1rem;
                border-radius: 16px;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            .search-section {
                flex-direction: column;
                padding: 1.2rem;
            }
            .search-form {
                width: 100%;
            }
            .rating-section {
                padding: 1.2rem;
            }
            .comments-section {
                padding: 1.2rem;
            }
            .rating-stars {
                font-size: 1.6rem;
            }
            .breadcrumb {
                font-size: 0.8rem;
                padding: 0.4rem 0;
            }
            friend-link {
                padding: 1.2rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 0.8rem;
            }
            h1 {
                font-size: 1.5rem;
            }
            .my-logo {
                font-size: 1.2rem;
            }
            .search-form input,
            .search-form button {
                font-size: 0.9rem;
            }
            .rating-stars {
                font-size: 1.4rem;
            }
        }
        .text-muted {
            color: #5f6f7e;
        }
        .mt-1 {
            margin-top: 0.5rem;
        }
        .mb-1 {
            margin-bottom: 0.5rem;
        }
        .flex-center {
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .star-rating-input {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.2rem;
        }
        .star-rating-input input {
            display: none;
        }
        .star-rating-input label {
            font-size: 2rem;
            color: #d4c5a0;
            cursor: pointer;
            transition: color 0.15s, transform 0.15s;
        }
        .star-rating-input label:hover,
        .star-rating-input label:hover~label,
        .star-rating-input input:checked~label {
            color: #f5b342;
            transform: scale(1.1);
        }
        @media (max-width: 768px) {
            .star-rating-input label {
                font-size: 1.6rem;
            }
        }
        .smooth-shadow {
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
        }
        .btn-outline {
            background: transparent;
            border: 2px solid #1a6b8a;
            color: #1a6b8a;
            padding: 0.5rem 1.5rem;
            border-radius: 40px;
            font-weight: 600;
            transition: background 0.2s, color 0.2s;
            cursor: pointer;
        }
        .btn-outline:hover {
            background: #1a6b8a;
            color: #fff;
        }