* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: #f4f7fc;
            color: #1a2634;
            line-height: 1.7;
            padding: 0 16px;
        }
        .wrapper {
            max-width: 1280px;
            margin: 0 auto;
            background: #fff;
            box-shadow: 0 0 40px rgba(0, 0, 0, 0.05);
            border-radius: 24px;
            overflow: hidden;
            margin-top: 20px;
            margin-bottom: 20px;
        }
        header {
            background: linear-gradient(145deg, #0b1a2e, #1a2f44);
            padding: 16px 32px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            border-bottom: 4px solid #f39c12;
            position: relative;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 800;
            color: #f39c12;
            text-decoration: none;
            letter-spacing: 1px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i {
            color: #ecf0f1;
            font-size: 2rem;
        }
        .my-logo span {
            background: #f39c12;
            color: #0b1a2e;
            padding: 0 8px;
            border-radius: 6px;
            font-size: 1.2rem;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 2rem;
            color: #ecf0f1;
            cursor: pointer;
            padding: 8px;
            transition: 0.3s;
        }
        .hamburger:hover {
            color: #f39c12;
        }
        .nav-menu {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 16px;
            align-items: center;
            transition: all 0.3s ease;
        }
        .nav-menu a {
            color: #ecf0f1;
            text-decoration: none;
            font-weight: 500;
            padding: 6px 14px;
            border-radius: 30px;
            transition: 0.3s;
            font-size: 0.95rem;
        }
        .nav-menu a:hover {
            background: #f39c12;
            color: #0b1a2e;
            transform: translateY(-2px);
        }
        .nav-menu a i {
            margin-right: 6px;
        }
        .breadcrumb {
            background: #f8f9fa;
            padding: 12px 32px;
            font-size: 0.9rem;
            border-bottom: 1px solid #e9ecef;
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }
        .breadcrumb a {
            color: #2c3e50;
            text-decoration: none;
            transition: 0.2s;
        }
        .breadcrumb a:hover {
            color: #f39c12;
        }
        .breadcrumb span {
            color: #6c757d;
        }
        .breadcrumb i {
            margin: 0 6px;
            color: #adb5bd;
            font-size: 0.7rem;
        }
        .main-grid {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
            padding: 40px 32px;
        }
        @media (max-width: 1024px) {
            .main-grid {
                grid-template-columns: 1fr;
                padding: 24px 16px;
                gap: 32px;
            }
        }
        .content h1 {
            font-size: 2.6rem;
            color: #0b1a2e;
            margin-bottom: 16px;
            line-height: 1.2;
            border-left: 6px solid #f39c12;
            padding-left: 20px;
        }
        .content .meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 24px;
            color: #6c757d;
            font-size: 0.95rem;
            margin-bottom: 24px;
            padding-bottom: 16px;
            border-bottom: 1px solid #e9ecef;
        }
        .content .meta i {
            margin-right: 6px;
            color: #f39c12;
        }
        .content .last-updated {
            background: #e8f0fe;
            padding: 8px 18px;
            border-radius: 30px;
            font-weight: 600;
            color: #1a2f44;
            display: inline-block;
            margin-bottom: 24px;
            font-size: 0.9rem;
        }
        .content .last-updated i {
            margin-right: 8px;
            color: #f39c12;
        }
        .content img {
            width: 100%;
            border-radius: 18px;
            margin: 24px 0;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
            display: block;
        }
        .content h2 {
            font-size: 2rem;
            color: #1a2f44;
            margin-top: 48px;
            margin-bottom: 16px;
            padding-bottom: 8px;
            border-bottom: 3px solid #f39c12;
        }
        .content h3 {
            font-size: 1.5rem;
            color: #2c3e50;
            margin-top: 32px;
            margin-bottom: 12px;
        }
        .content h4 {
            font-size: 1.2rem;
            color: #34495e;
            margin-top: 24px;
            margin-bottom: 8px;
        }
        .content p {
            margin-bottom: 18px;
            font-size: 1.05rem;
            color: #2d3e4f;
        }
        .content ul,
        .content ol {
            margin: 16px 0 24px 24px;
        }
        .content li {
            margin-bottom: 10px;
            font-size: 1.02rem;
        }
        .content .highlight-box {
            background: #fef9e7;
            border-left: 6px solid #f39c12;
            padding: 20px 24px;
            border-radius: 12px;
            margin: 24px 0;
        }
        .content .highlight-box strong {
            color: #0b1a2e;
        }
        .content .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 16px;
            margin: 24px 0;
        }
        .content .stat-card {
            background: #1a2f44;
            color: #ecf0f1;
            padding: 20px 16px;
            border-radius: 14px;
            text-align: center;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }
        .content .stat-card i {
            font-size: 2.2rem;
            color: #f39c12;
            margin-bottom: 8px;
        }
        .content .stat-card .num {
            font-size: 2rem;
            font-weight: 800;
            color: #f39c12;
        }
        .content .stat-card .label {
            font-size: 0.9rem;
            opacity: 0.85;
        }
        .content .tip-box {
            background: #eafaf1;
            border-radius: 14px;
            padding: 18px 22px;
            margin: 20px 0;
            border-left: 6px solid #27ae60;
        }
        .content .tip-box i {
            color: #27ae60;
            margin-right: 8px;
        }
        .content a {
            color: #e67e22;
            text-decoration: underline;
            font-weight: 500;
            transition: 0.2s;
        }
        .content a:hover {
            color: #d35400;
        }
        .sidebar {
            background: #f8f9fa;
            border-radius: 20px;
            padding: 24px 20px;
            position: sticky;
            top: 20px;
            align-self: start;
        }
        .sidebar h3 {
            font-size: 1.4rem;
            color: #0b1a2e;
            border-bottom: 3px solid #f39c12;
            padding-bottom: 8px;
            margin-bottom: 20px;
        }
        .sidebar .link-list {
            list-style: none;
            padding: 0;
        }
        .sidebar .link-list li {
            margin-bottom: 12px;
            border-bottom: 1px solid #e9ecef;
            padding-bottom: 12px;
        }
        .sidebar .link-list a {
            color: #2c3e50;
            text-decoration: none;
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: 0.3s;
        }
        .sidebar .link-list a:hover {
            color: #f39c12;
            transform: translateX(4px);
        }
        .sidebar .link-list a i {
            color: #f39c12;
            width: 20px;
            text-align: center;
        }
        .sidebar .search-box {
            margin-top: 24px;
        }
        .sidebar .search-box form {
            display: flex;
            border-radius: 30px;
            overflow: hidden;
            border: 2px solid #dee2e6;
            transition: 0.3s;
        }
        .sidebar .search-box form:focus-within {
            border-color: #f39c12;
        }
        .sidebar .search-box input {
            flex: 1;
            padding: 12px 16px;
            border: none;
            outline: none;
            font-size: 1rem;
            background: #fff;
        }
        .sidebar .search-box button {
            background: #f39c12;
            color: #fff;
            border: none;
            padding: 12px 20px;
            cursor: pointer;
            font-size: 1rem;
            transition: 0.3s;
        }
        .sidebar .search-box button:hover {
            background: #d68910;
        }
        .feedback-section {
            background: #f8f9fa;
            border-radius: 20px;
            padding: 28px 24px;
            margin-top: 40px;
        }
        .feedback-section h3 {
            font-size: 1.6rem;
            color: #0b1a2e;
            border-bottom: 3px solid #f39c12;
            padding-bottom: 8px;
            margin-bottom: 20px;
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        @media (max-width: 768px) {
            .feedback-grid {
                grid-template-columns: 1fr;
            }
        }
        .feedback-form label {
            font-weight: 600;
            display: block;
            margin-bottom: 6px;
            color: #1a2f44;
        }
        .feedback-form input,
        .feedback-form textarea,
        .feedback-form select {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid #dee2e6;
            border-radius: 12px;
            font-size: 1rem;
            transition: 0.3s;
            margin-bottom: 16px;
            background: #fff;
        }
        .feedback-form input:focus,
        .feedback-form textarea:focus,
        .feedback-form select:focus {
            border-color: #f39c12;
            outline: none;
            box-shadow: 0 0 0 4px rgba(243, 156, 18, 0.15);
        }
        .feedback-form textarea {
            min-height: 100px;
            resize: vertical;
        }
        .feedback-form .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 4px;
            margin-bottom: 16px;
        }
        .feedback-form .star-rating input {
            display: none;
        }
        .feedback-form .star-rating label {
            font-size: 2rem;
            color: #ccc;
            cursor: pointer;
            transition: 0.2s;
            margin: 0;
        }
        .feedback-form .star-rating label:hover,
        .feedback-form .star-rating label:hover~label,
        .feedback-form .star-rating input:checked~label {
            color: #f39c12;
        }
        .feedback-form .btn-submit {
            background: #f39c12;
            color: #fff;
            border: none;
            padding: 14px 32px;
            border-radius: 30px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: 0.3s;
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .feedback-form .btn-submit:hover {
            background: #d68910;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(243, 156, 18, 0.3);
        }
        .friend-link-section {
            background: #1a2f44;
            padding: 32px 32px 24px;
            color: #ecf0f1;
            margin-top: 40px;
        }
        .friend-link-section h3 {
            font-size: 1.3rem;
            color: #f39c12;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        friend-link {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
            font-size: 0.95rem;
        }
        friend-link a {
            color: #bdc3c7;
            text-decoration: none;
            transition: 0.3s;
            padding: 4px 0;
            border-bottom: 1px solid transparent;
        }
        friend-link a:hover {
            color: #f39c12;
            border-bottom-color: #f39c12;
        }
        footer {
            background: #0b1a2e;
            padding: 24px 32px;
            text-align: center;
            color: #95a5a6;
            font-size: 0.9rem;
            border-top: 2px solid #f39c12;
        }
        footer .copyright {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 8px 20px;
            align-items: center;
        }
        footer .copyright i {
            color: #f39c12;
        }
        @media (max-width: 768px) {
            header {
                padding: 12px 16px;
            }
            .my-logo {
                font-size: 1.5rem;
            }
            .hamburger {
                display: block;
            }
            .nav-menu {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                padding-top: 16px;
                gap: 4px;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu a {
                padding: 12px 16px;
                border-radius: 10px;
                background: rgba(255, 255, 255, 0.05);
            }
            .breadcrumb {
                padding: 10px 16px;
                font-size: 0.8rem;
                flex-wrap: wrap;
            }
            .content h1 {
                font-size: 1.8rem;
                padding-left: 12px;
            }
            .content h2 {
                font-size: 1.5rem;
            }
            .content h3 {
                font-size: 1.25rem;
            }
            .main-grid {
                padding: 16px 12px;
            }
            .sidebar {
                position: static;
                padding: 16px;
            }
            .feedback-section {
                padding: 16px;
            }
            .friend-link-section {
                padding: 20px 16px;
            }
            footer {
                padding: 16px;
            }
            .content .stat-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 480px) {
            .content .stat-grid {
                grid-template-columns: 1fr;
            }
            .my-logo {
                font-size: 1.2rem;
            }
            .content h1 {
                font-size: 1.5rem;
            }
        }
        html {
            scroll-behavior: smooth;
        }
        .content .emoji {
            font-size: 1.2em;
            margin-right: 4px;
        }
        .content .fa-li {
            color: #f39c12;
        }