*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, Arial, sans-serif;
            background: #f5f7fa;
            color: #1e2a3a;
            line-height: 1.7;
            padding: 0 1rem;
        }
        a {
            color: #0066cc;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #004999;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            background: #ffffff;
            border-radius: 20px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
            padding: 1.2rem 1.8rem;
        }
        .my-logo {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 1.8rem;
            font-weight: 800;
            color: #ff6a00;
            letter-spacing: -0.5px;
            text-decoration: none;
        }
        .my-logo i {
            font-size: 2.2rem;
            color: #ff4500;
        }
        .my-logo span {
            color: #1e2a3a;
        }
        .my-logo small {
            font-size: 0.75rem;
            font-weight: 400;
            color: #666;
            margin-left: 0.3rem;
        }
        .navbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding: 0.8rem 0;
            border-bottom: 2px solid #eef1f5;
            position: relative;
        }
        .nav-links {
            display: flex;
            gap: 1.4rem;
            list-style: none;
            flex-wrap: wrap;
        }
        .nav-links li a {
            font-weight: 600;
            color: #1e2a3a;
            padding: 0.3rem 0;
            border-bottom: 2px solid transparent;
            transition: 0.2s;
        }
        .nav-links li a:hover {
            border-bottom-color: #ff6a00;
            color: #ff6a00;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            background: none;
            border: none;
            color: #1e2a3a;
            padding: 0.2rem 0.6rem;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem 0.8rem;
            font-size: 0.9rem;
            padding: 0.8rem 0 0.2rem;
            color: #888;
        }
        .breadcrumb a {
            color: #0066cc;
        }
        .breadcrumb i {
            font-size: 0.7rem;
            color: #aaa;
        }
        .last-updated {
            display: block;
            font-size: 0.85rem;
            color: #888;
            margin: 0.6rem 0 1.2rem;
            border-left: 4px solid #ff6a00;
            padding-left: 0.8rem;
        }
        h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #0b1a2e;
            margin: 1.2rem 0 0.6rem;
            line-height: 1.2;
        }
        h2 {
            font-size: 1.9rem;
            font-weight: 700;
            color: #14273e;
            margin: 2.2rem 0 1rem;
            border-left: 5px solid #ff6a00;
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.4rem;
            font-weight: 600;
            color: #1e3a5f;
            margin: 1.6rem 0 0.8rem;
        }
        h4 {
            font-size: 1.15rem;
            font-weight: 600;
            color: #2a4a6e;
            margin: 1.2rem 0 0.5rem;
        }
        p {
            margin-bottom: 1.1rem;
            color: #2c3e50;
        }
        .content-section {
            margin: 2rem 0;
        }
        .highlight-box {
            background: #f0f4fe;
            border-radius: 16px;
            padding: 1.4rem 1.8rem;
            margin: 1.6rem 0;
            border-left: 6px solid #ff6a00;
        }
        .highlight-box p:last-child {
            margin-bottom: 0;
        }
        .tip-box {
            background: #fff8e7;
            border-radius: 12px;
            padding: 1.2rem 1.6rem;
            margin: 1.4rem 0;
            border: 1px solid #ffe0a0;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.8rem;
            margin: 1.8rem 0;
        }
        .grid-3 {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 1.5rem;
            margin: 1.8rem 0;
        }
        .grid-item {
            background: #fafbfc;
            padding: 1.2rem 1.4rem;
            border-radius: 14px;
            border: 1px solid #e8ecf0;
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .grid-item:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.06);
        }
        .grid-item i {
            font-size: 1.6rem;
            color: #ff6a00;
            margin-bottom: 0.4rem;
        }
        .featured-image {
            border-radius: 16px;
            margin: 1.6rem 0;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
        }
        .search-form {
            display: flex;
            max-width: 520px;
            margin: 1.2rem 0 1.8rem;
            border-radius: 40px;
            overflow: hidden;
            border: 2px solid #ddd;
            background: #fff;
            transition: 0.2s;
        }
        .search-form:focus-within {
            border-color: #ff6a00;
        }
        .search-form input {
            flex: 1;
            padding: 0.8rem 1.2rem;
            border: none;
            outline: none;
            font-size: 1rem;
            background: transparent;
        }
        .search-form button {
            background: #ff6a00;
            color: #fff;
            border: none;
            padding: 0 1.4rem;
            font-size: 1.1rem;
            cursor: pointer;
            transition: background 0.2s;
        }
        .search-form button:hover {
            background: #e55d00;
        }
        .feedback-area {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            margin: 2.4rem 0;
            padding: 1.8rem 0;
            border-top: 2px solid #eef1f5;
            border-bottom: 2px solid #eef1f5;
        }
        .feedback-area form {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
        }
        .feedback-area label {
            font-weight: 600;
            font-size: 0.95rem;
        }
        .feedback-area input,
        .feedback-area textarea,
        .feedback-area select {
            padding: 0.7rem 1rem;
            border: 2px solid #dce1e8;
            border-radius: 10px;
            font-size: 0.95rem;
            font-family: inherit;
            background: #fff;
            transition: 0.2s;
        }
        .feedback-area input:focus,
        .feedback-area textarea:focus,
        .feedback-area select:focus {
            border-color: #ff6a00;
            outline: none;
        }
        .feedback-area textarea {
            min-height: 80px;
            resize: vertical;
        }
        .feedback-area .btn {
            background: #ff6a00;
            color: #fff;
            border: none;
            padding: 0.7rem 1.6rem;
            border-radius: 30px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: 0.2s;
            align-self: flex-start;
        }
        .feedback-area .btn:hover {
            background: #e55d00;
            transform: scale(1.02);
        }
        .rating-stars {
            display: flex;
            gap: 0.3rem;
            font-size: 1.6rem;
            color: #ffb800;
            cursor: pointer;
        }
        .rating-stars i {
            transition: 0.15s;
        }
        .rating-stars i:hover {
            transform: scale(1.2);
        }
        friend-link {
            display: block;
            padding: 1.6rem 0 0.8rem;
            border-top: 2px solid #eef1f5;
            margin-top: 2rem;
        }
        friend-link ul {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem 1.8rem;
            list-style: none;
            padding: 0.6rem 0;
        }
        friend-link ul li a {
            font-weight: 500;
            color: #2c3e50;
        }
        friend-link ul li a:hover {
            color: #ff6a00;
        }
        .footer-copy {
            text-align: center;
            padding: 1.2rem 0 0.6rem;
            font-size: 0.85rem;
            color: #999;
            border-top: 1px solid #eef1f5;
            margin-top: 1.2rem;
        }
        @media (max-width: 768px) {
            body {
                padding: 0 0.5rem;
            }
            .container {
                padding: 0.8rem 1rem;
                border-radius: 12px;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1.15rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .my-logo i {
                font-size: 1.6rem;
            }
            .nav-links {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 0.6rem;
                padding: 1rem 0 0.4rem;
                border-top: 1px solid #eef1f5;
                margin-top: 0.6rem;
            }
            .nav-links.open {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            .grid-2,
            .grid-3 {
                grid-template-columns: 1fr;
                gap: 1rem;
            }
            .feedback-area {
                grid-template-columns: 1fr;
                gap: 1.6rem;
            }
            .breadcrumb {
                font-size: 0.8rem;
            }
        }
        @media (min-width: 769px) {
            .hamburger {
                display: none !important;
            }
            .nav-links {
                display: flex !important;
            }
        }
        .section-fade {
            opacity: 0;
            transform: translateY(14px);
            animation: fadeUp 0.5s ease forwards;
        }
        @keyframes fadeUp {
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.2rem 0;
            font-size: 0.95rem;
        }
        .data-table th {
            background: #ff6a00;
            color: #fff;
            padding: 0.6rem 1rem;
            text-align: left;
            font-weight: 600;
        }
        .data-table td {
            padding: 0.6rem 1rem;
            border-bottom: 1px solid #eef1f5;
        }
        .data-table tr:hover td {
            background: #faf5ee;
        }
        @media (max-width: 600px) {
            .data-table {
                font-size: 0.8rem;
            }
            .data-table th,
            .data-table td {
                padding: 0.4rem 0.6rem;
            }
        }
        .emoji-big {
            font-size: 1.8rem;
            vertical-align: middle;
        }
        .badge {
            display: inline-block;
            background: #ff6a00;
            color: #fff;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 0.15rem 0.7rem;
            border-radius: 30px;
            letter-spacing: 0.3px;
        }
        .inline-icon {
            color: #ff6a00;
            margin-right: 0.3rem;
        }
        hr {
            border: none;
            border-top: 2px solid #eef1f5;
            margin: 2rem 0;
        }