*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            background: #f4f7fa;
            color: #1e2a3a;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        a {
            color: #0057a3;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover,
        a:focus {
            color: #ff6f00;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.4rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 600;
            line-height: 1.3;
            margin-top: 1.8rem;
            margin-bottom: 0.6rem;
            color: #0b1a2a;
        }
        h1 {
            font-size: 2.4rem;
            margin-top: 0.4rem;
        }
        h2 {
            font-size: 1.8rem;
            border-left: 5px solid #ff6f00;
            padding-left: 0.8rem;
        }
        h3 {
            font-size: 1.4rem;
            color: #1e3a5f;
        }
        h4 {
            font-size: 1.15rem;
            color: #2c4a6e;
        }
        p {
            margin-bottom: 1.2rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #0b1a2a 0%, #1a3a5c 100%);
            color: #fff;
            padding: 0.6rem 0;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            position: relative;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            letter-spacing: 1px;
            color: #fff;
            background: linear-gradient(45deg, #ffd700, #ff6f00);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            padding: 0.3rem 0;
            display: inline-block;
        }
        .my-logo i {
            -webkit-text-fill-color: #ffd700;
            margin-right: 6px;
            font-size: 2rem;
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none;
        }
        .nav-toggle {
            display: none;
            font-size: 1.8rem;
            color: #fff;
            background: none;
            border: none;
            cursor: pointer;
            padding: 0.3rem 0.6rem;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.15);
        }
        nav {
            display: flex;
            align-items: center;
            gap: 0.3rem;
            flex-wrap: wrap;
        }
        nav a {
            color: #e0eefb;
            padding: 0.5rem 0.9rem;
            border-radius: 30px;
            font-size: 0.92rem;
            font-weight: 500;
            transition: all 0.25s ease;
            white-space: nowrap;
        }
        nav a i {
            margin-right: 5px;
            font-size: 0.85rem;
        }
        nav a:hover,
        nav a:focus {
            background: rgba(255, 255, 255, 0.18);
            color: #ffd700;
            text-decoration: none;
        }
        .breadcrumb {
            background: #f0f4f9;
            padding: 0.5rem 0;
            font-size: 0.85rem;
            border-bottom: 1px solid #dce3ec;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 0.6rem;
            padding: 0;
            margin: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.5rem;
            color: #7f8fa3;
            font-weight: 600;
        }
        .breadcrumb a {
            color: #0057a3;
        }
        .breadcrumb .current {
            color: #4a5b6f;
            font-weight: 500;
        }
        .hero {
            background: linear-gradient(145deg, #0f2a44, #1c4a72);
            color: #fff;
            padding: 2.8rem 0 2.2rem;
            margin-bottom: 2.2rem;
            border-radius: 0 0 40px 40px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        }
        .hero h1 {
            color: #fff;
            font-size: 2.8rem;
            margin-bottom: 0.3rem;
        }
        .hero p {
            font-size: 1.15rem;
            opacity: 0.9;
            max-width: 780px;
        }
        .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 1.2rem 2rem;
            margin-top: 0.8rem;
            font-size: 0.95rem;
        }
        .hero-meta span i {
            margin-right: 6px;
            color: #ffd700;
        }
        .search-section {
            background: #fff;
            border-radius: 16px;
            padding: 1.2rem 1.8rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
            margin-bottom: 2.2rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.8rem 1.2rem;
        }
        .search-section label {
            font-weight: 600;
            color: #1e2a3a;
            font-size: 1.1rem;
        }
        .search-section label i {
            color: #ff6f00;
            margin-right: 5px;
        }
        .search-form {
            flex: 1;
            display: flex;
            gap: 0.5rem;
            min-width: 200px;
        }
        .search-form input[type="search"] {
            flex: 1;
            padding: 0.6rem 1rem;
            border: 2px solid #dce3ec;
            border-radius: 40px;
            font-size: 0.95rem;
            outline: none;
            transition: border 0.2s;
            min-width: 120px;
        }
        .search-form input[type="search"]:focus {
            border-color: #ff6f00;
        }
        .search-form button {
            background: #ff6f00;
            color: #fff;
            border: none;
            border-radius: 40px;
            padding: 0.6rem 1.4rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .search-form button:hover {
            background: #e05e00;
        }
        .main-grid {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 2.2rem;
            margin-bottom: 2.8rem;
        }
        .content-area {
            background: #fff;
            border-radius: 20px;
            padding: 2rem 2.2rem;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
        }
        .sidebar {
            background: #fff;
            border-radius: 20px;
            padding: 1.8rem 1.6rem;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
            height: fit-content;
            position: sticky;
            top: 100px;
        }
        .sidebar h3 {
            font-size: 1.3rem;
            border-bottom: 2px solid #ffd700;
            padding-bottom: 0.4rem;
            margin-top: 0;
            margin-bottom: 1rem;
        }
        .sidebar ul {
            list-style: none;
            padding: 0;
        }
        .sidebar ul li {
            padding: 0.4rem 0;
            border-bottom: 1px solid #ecf0f5;
        }
        .sidebar ul li a {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 500;
        }
        .sidebar ul li a i {
            color: #ff6f00;
            font-size: 0.8rem;
        }
        .sidebar .link-list a {
            font-size: 0.92rem;
        }
        .featured-image {
            margin: 1.8rem 0;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
        }
        .featured-image img {
            width: 100%;
            object-fit: cover;
        }
        .featured-image figcaption {
            background: #f0f4f9;
            padding: 0.6rem 1rem;
            font-size: 0.85rem;
            color: #3a4a5e;
            text-align: center;
        }
        .interaction-section {
            background: #fff;
            border-radius: 20px;
            padding: 2rem 2.2rem;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
            margin-top: 2.2rem;
        }
        .interaction-section h2 {
            border-left-color: #ffd700;
        }
        .comment-form,
        .rating-form {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
            margin: 1.2rem 0 1.8rem;
            padding: 1.2rem;
            background: #f8faff;
            border-radius: 14px;
            border: 1px solid #e6edf6;
        }
        .comment-form input,
        .comment-form textarea,
        .rating-form select {
            padding: 0.7rem 1rem;
            border: 2px solid #dce3ec;
            border-radius: 10px;
            font-size: 0.95rem;
            outline: none;
            transition: border 0.2s;
            font-family: inherit;
        }
        .comment-form input:focus,
        .comment-form textarea:focus,
        .rating-form select:focus {
            border-color: #ff6f00;
        }
        .comment-form textarea {
            min-height: 100px;
            resize: vertical;
        }
        .comment-form button,
        .rating-form button {
            align-self: flex-start;
            background: #0057a3;
            color: #fff;
            border: none;
            padding: 0.6rem 1.8rem;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .comment-form button:hover,
        .rating-form button:hover {
            background: #003f7a;
        }
        .rating-stars {
            display: flex;
            gap: 0.3rem;
            font-size: 1.8rem;
            color: #ffb800;
            cursor: pointer;
        }
        .rating-stars i {
            transition: transform 0.15s, color 0.15s;
        }
        .rating-stars i:hover {
            transform: scale(1.2);
            color: #ff8c00;
        }
        footer {
            background: #0b1a2a;
            color: #c8d8e8;
            padding: 2.2rem 0 1.2rem;
            margin-top: 3rem;
            border-radius: 30px 30px 0 0;
        }
        footer .container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
        }
        footer h4 {
            color: #ffd700;
            margin-top: 0;
            font-size: 1.15rem;
        }
        footer a {
            color: #b0cce8;
        }
        footer a:hover {
            color: #ffd700;
        }
        friend-link {
            display: block;
            background: rgba(255, 255, 255, 0.04);
            padding: 1rem 1.2rem;
            border-radius: 12px;
            border: 1px solid rgba(255, 255, 255, 0.06);
        }
        friend-link ul {
            list-style: none;
            padding: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem 1.2rem;
        }
        friend-link ul li a {
            font-size: 0.92rem;
        }
        .copyright {
            grid-column: 1 / -1;
            text-align: center;
            padding-top: 1.2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.85rem;
            color: #8fa8c4;
        }
        .copyright i {
            margin: 0 4px;
        }
        @media (max-width: 900px) {
            .main-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
            }
            footer .container {
                grid-template-columns: 1fr;
            }
            .hero h1 {
                font-size: 2rem;
            }
        }
        @media (max-width: 720px) {
            .nav-toggle {
                display: block;
            }
            nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                padding: 0.8rem 0 0.4rem;
                gap: 0.2rem;
            }
            nav.open {
                display: flex;
            }
            nav a {
                width: 100%;
                padding: 0.5rem 0.8rem;
                border-radius: 8px;
            }
            .header-inner {
                align-items: center;
            }
            .content-area {
                padding: 1.2rem 1rem;
            }
            .interaction-section {
                padding: 1.2rem 1rem;
            }
            .search-section {
                flex-direction: column;
                align-items: stretch;
                padding: 1rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                justify-content: center;
            }
            .hero h1 {
                font-size: 1.7rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1.15rem;
            }
            .my-logo {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 420px) {
            .container {
                padding: 0 12px;
            }
            .hero {
                padding: 1.8rem 0 1.4rem;
            }
            .hero h1 {
                font-size: 1.4rem;
            }
            .hero-meta {
                flex-direction: column;
                gap: 0.3rem;
            }
            .breadcrumb ol {
                font-size: 0.75rem;
            }
            .rating-stars {
                font-size: 1.4rem;
            }
        }
        .badge {
            display: inline-block;
            background: #ffd700;
            color: #0b1a2a;
            padding: 0.15rem 0.7rem;
            border-radius: 30px;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.3px;
        }
        .highlight-box {
            background: #f0f7ff;
            border-left: 4px solid #0057a3;
            padding: 1rem 1.4rem;
            border-radius: 0 12px 12px 0;
            margin: 1.2rem 0;
        }
        .highlight-box i {
            color: #0057a3;
            margin-right: 6px;
        }
        .emoji-lg {
            font-size: 1.4rem;
        }
        .text-small {
            font-size: 0.85rem;
            color: #5a6f84;
        }
        .last-updated {
            display: inline-block;
            background: #e8eef6;
            padding: 0.2rem 1rem;
            border-radius: 30px;
            font-size: 0.8rem;
            color: #2a4058;
        }
        .last-updated i {
            margin-right: 4px;
            color: #ff6f00;
        }
        .btn-outline {
            background: transparent;
            border: 2px solid #0057a3;
            color: #0057a3;
            padding: 0.4rem 1.2rem;
            border-radius: 40px;
            font-weight: 600;
            transition: all 0.2s;
            cursor: pointer;
        }
        .btn-outline:hover {
            background: #0057a3;
            color: #fff;
        }
        .inline-link-icon {
            color: #ff6f00;
            font-size: 0.75rem;
            margin-left: 3px;
        }