* {
            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, sans-serif;
            background: #f5f9fc;
            color: #1a2634;
            line-height: 1.7;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        a {
            color: #0d6e9e;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #094c6e;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.4rem;
            margin: 0.8rem 0;
        }
        li {
            margin-bottom: 0.4rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            margin-top: 1.8rem;
            margin-bottom: 0.8rem;
            color: #0b2a3b;
        }
        h1 {
            font-size: 2.2rem;
            margin-top: 0.4rem;
        }
        h2 {
            font-size: 1.7rem;
            border-left: 5px solid #1b8bbf;
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.3rem;
            color: #134a63;
        }
        h4 {
            font-size: 1.1rem;
            color: #1a5e7a;
        }
        p {
            margin: 0.9rem 0;
            font-size: 1.05rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.2rem;
        }
        header {
            background: linear-gradient(135deg, #0b2a3b 0%, #1b6b8a 100%);
            color: #fff;
            padding: 0.8rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        }
        header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.6rem;
        }
        .my-logo {
            font-size: 1.7rem;
            font-weight: 800;
            letter-spacing: 0.5px;
            color: #f7d967;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
            transition: transform 0.2s;
        }
        .my-logo:hover {
            transform: scale(1.02);
            text-decoration: none;
            color: #f7d967;
        }
        .my-logo i {
            margin-right: 8px;
            color: #f7b731;
        }
        .logo-sub {
            font-size: 0.65rem;
            display: block;
            color: #b8d4e2;
            letter-spacing: 1px;
            font-weight: 300;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 0.2rem;
            flex-wrap: wrap;
        }
        .nav-menu a {
            color: #e6f0f5;
            padding: 0.5rem 0.9rem;
            border-radius: 30px;
            font-size: 0.92rem;
            font-weight: 500;
            transition: background 0.25s, color 0.25s;
        }
        .nav-menu a:hover {
            background: rgba(255, 255, 255, 0.18);
            color: #f7d967;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.6rem;
            cursor: pointer;
            padding: 0.2rem 0.5rem;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.12);
        }
        .search-wrap {
            display: flex;
            align-items: center;
            gap: 0.4rem;
            background: rgba(255, 255, 255, 0.12);
            border-radius: 40px;
            padding: 0.2rem 0.2rem 0.2rem 1rem;
            border: 1px solid rgba(255, 255, 255, 0.15);
            transition: background 0.3s;
            flex: 0 1 260px;
        }
        .search-wrap:focus-within {
            background: rgba(255, 255, 255, 0.22);
        }
        .search-wrap input {
            background: transparent;
            border: none;
            color: #fff;
            padding: 0.45rem 0;
            font-size: 0.92rem;
            width: 100%;
            outline: none;
        }
        .search-wrap input::placeholder {
            color: #b8d4e2;
            opacity: 0.7;
        }
        .search-wrap button {
            background: #f7b731;
            border: none;
            border-radius: 40px;
            padding: 0.45rem 1.1rem;
            color: #0b2a3b;
            font-weight: 600;
            cursor: pointer;
            font-size: 0.85rem;
            transition: background 0.25s, transform 0.15s;
            white-space: nowrap;
        }
        .search-wrap button:hover {
            background: #f5a623;
            transform: scale(1.03);
        }
        .breadcrumb {
            background: #e8f0f5;
            padding: 0.6rem 0;
            border-bottom: 1px solid #d0dfe8;
            font-size: 0.88rem;
        }
        .breadcrumb .container {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.3rem;
        }
        .breadcrumb a {
            color: #0d6e9e;
        }
        .breadcrumb span {
            color: #4a6a7a;
        }
        .breadcrumb .sep {
            color: #8aaabc;
            margin: 0 0.2rem;
        }
        main {
            flex: 1;
            padding: 2.2rem 0 3rem;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
        }
        .article-body {
            background: #fff;
            border-radius: 20px;
            padding: 2.2rem 2.5rem;
            box-shadow: 0 8px 40px rgba(0, 0, 0, 0.05);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 1.8rem;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 16px;
            padding: 1.5rem;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
        }
        .sidebar-card h3 {
            margin-top: 0;
            font-size: 1.1rem;
            border-bottom: 2px solid #e6f0f5;
            padding-bottom: 0.6rem;
            margin-bottom: 1rem;
        }
        .sidebar-card ul {
            list-style: none;
            padding-left: 0;
        }
        .sidebar-card li {
            padding: 0.4rem 0;
            border-bottom: 1px solid #f0f5f8;
        }
        .sidebar-card li:last-child {
            border-bottom: none;
        }
        .sidebar-card a {
            font-weight: 500;
        }
        .featured-img {
            margin: 1.8rem 0;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 6px 30px rgba(0, 0, 0, 0.08);
        }
        .featured-img img {
            width: 100%;
            max-height: 460px;
            object-fit: cover;
        }
        .featured-img figcaption {
            background: #f0f6fa;
            padding: 0.6rem 1.2rem;
            font-size: 0.88rem;
            color: #2a4a5a;
            font-style: italic;
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
            font-size: 0.95rem;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
        }
        .data-table th {
            background: #0b2a3b;
            color: #f7d967;
            padding: 0.8rem 1rem;
            text-align: left;
            font-weight: 600;
        }
        .data-table td {
            padding: 0.7rem 1rem;
            border-bottom: 1px solid #e6f0f5;
        }
        .data-table tr:nth-child(even) {
            background: #f8fbfd;
        }
        .data-table tr:hover td {
            background: #eef5fa;
        }
        .interaction-area {
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 2px solid #e6f0f5;
        }
        .rating-box {
            background: #f8fbfd;
            border-radius: 16px;
            padding: 1.8rem 2rem;
            margin-bottom: 2rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 1.5rem;
        }
        .rating-stars {
            display: flex;
            gap: 0.3rem;
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
        }
        .rating-stars .star {
            transition: color 0.2s, transform 0.15s;
        }
        .rating-stars .star:hover,
        .rating-stars .star.active {
            color: #f7b731;
            transform: scale(1.1);
        }
        .rating-form button {
            background: #1b8bbf;
            color: #fff;
            border: none;
            padding: 0.6rem 1.8rem;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s;
        }
        .rating-form button:hover {
            background: #0d6e9e;
        }
        .comment-list {
            margin-top: 1.2rem;
        }
        .comment-item {
            background: #f8fbfd;
            border-radius: 12px;
            padding: 1rem 1.4rem;
            margin-bottom: 0.8rem;
            border-left: 4px solid #1b8bbf;
        }
        .comment-item .meta {
            font-size: 0.82rem;
            color: #5a7a8a;
            margin-bottom: 0.3rem;
        }
        .comment-item .meta strong {
            color: #0b2a3b;
        }
        .comment-form textarea {
            width: 100%;
            border: 2px solid #d0dfe8;
            border-radius: 12px;
            padding: 0.8rem 1rem;
            font-family: inherit;
            font-size: 0.95rem;
            resize: vertical;
            min-height: 90px;
            transition: border 0.25s;
        }
        .comment-form textarea:focus {
            border-color: #1b8bbf;
            outline: none;
        }
        .comment-form input[type="text"] {
            width: 100%;
            max-width: 320px;
            border: 2px solid #d0dfe8;
            border-radius: 12px;
            padding: 0.6rem 1rem;
            font-size: 0.95rem;
            transition: border 0.25s;
        }
        .comment-form input[type="text"]:focus {
            border-color: #1b8bbf;
            outline: none;
        }
        .comment-form .btn-submit {
            background: #0b2a3b;
            color: #f7d967;
            border: none;
            padding: 0.7rem 2rem;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s;
        }
        .comment-form .btn-submit:hover {
            background: #134a63;
        }
        footer {
            background: #0b2a3b;
            color: #c8dce8;
            padding: 2.5rem 0 1.2rem;
            margin-top: 2rem;
        }
        footer .container {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2rem;
        }
        footer h4 {
            color: #f7d967;
            margin-top: 0;
            font-size: 1.1rem;
        }
        footer a {
            color: #aaccdd;
        }
        footer a:hover {
            color: #f7d967;
        }
        .friend-link {
            display: flex;
            flex-direction: column;
            gap: 0.4rem;
            padding: 1rem 0;
            border-top: 1px solid #1a4a5a;
            margin-top: 1rem;
            grid-column: 1 / -1;
        }
        .friend-link a {
            font-size: 0.92rem;
            padding: 0.2rem 0;
        }
        .copyright {
            grid-column: 1 / -1;
            text-align: center;
            font-size: 0.85rem;
            color: #7a9aaa;
            border-top: 1px solid #1a4a5a;
            padding-top: 1.2rem;
            margin-top: 0.8rem;
        }
        .copyright strong {
            color: #c8dce8;
        }
        .update-badge {
            display: inline-block;
            background: #e8f0f5;
            color: #0b2a3b;
            padding: 0.2rem 1rem;
            border-radius: 40px;
            font-size: 0.82rem;
            font-weight: 500;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                order: 2;
            }
            footer .container {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            header .container {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
                order: 3;
            }
            .nav-menu {
                display: none;
                flex-direction: column;
                width: 100%;
                background: rgba(11, 42, 59, 0.98);
                padding: 1rem 0.5rem;
                border-radius: 16px;
                margin-top: 0.4rem;
                order: 4;
                gap: 0.2rem;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu a {
                padding: 0.6rem 1rem;
                border-radius: 10px;
            }
            .search-wrap {
                flex: 1 1 100%;
                order: 2;
                margin-top: 0.3rem;
            }
            .my-logo {
                font-size: 1.3rem;
                order: 1;
            }
            .article-body {
                padding: 1.2rem 1rem;
            }
            h1 {
                font-size: 1.6rem;
            }
            h2 {
                font-size: 1.3rem;
            }
            h3 {
                font-size: 1.1rem;
            }
            .rating-box {
                flex-direction: column;
                align-items: flex-start;
            }
            .data-table {
                font-size: 0.82rem;
            }
            .data-table th,
            .data-table td {
                padding: 0.5rem 0.6rem;
            }
            footer .container {
                grid-template-columns: 1fr;
                gap: 1.2rem;
            }
            .breadcrumb {
                font-size: 0.78rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 0.8rem;
            }
            .article-body {
                padding: 0.8rem 0.8rem;
            }
            .rating-stars {
                font-size: 1.4rem;
            }
            .comment-form input[type="text"] {
                max-width: 100%;
            }
        }
        .highlight-box {
            background: #eaf4f9;
            border-left: 5px solid #1b8bbf;
            padding: 1.2rem 1.6rem;
            border-radius: 0 12px 12px 0;
            margin: 1.4rem 0;
        }
        .highlight-box strong {
            color: #0b2a3b;
        }
        .emoji-lg {
            font-size: 1.3rem;
        }
        .tag-india {
            display: inline-block;
            background: #ff9933;
            color: #fff;
            padding: 0.1rem 0.8rem;
            border-radius: 40px;
            font-size: 0.75rem;
            font-weight: 600;
            margin-left: 0.4rem;
        }
        .pro-tip {
            background: #fef9e7;
            border: 1px solid #f7d967;
            border-radius: 12px;
            padding: 1rem 1.4rem;
            margin: 1.2rem 0;
        }
        .pro-tip i {
            color: #f7b731;
            margin-right: 6px;
        }
        @media print {
            header,
            .breadcrumb,
            .search-wrap,
            .hamburger,
            .interaction-area,
            footer {
                display: none !important;
            }
            .article-body {
                box-shadow: none;
                padding: 0;
            }
            body {
                background: #fff;
            }
        }