* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            background: #f5f7fa;
            color: #1e2a3a;
            line-height: 1.7;
            font-size: 16px;
            padding: 0 16px;
        }
        a {
            color: #d32f2f;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #b71c1c;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
            margin: 24px 0;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            background: #ffffff;
            border-radius: 24px;
            padding: 24px 32px;
            box-shadow: 0 2px 40px rgba(0, 0, 0, 0.05);
        }
        .header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 16px 0 12px;
            border-bottom: 2px solid #eef2f7;
            position: relative;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #d32f2f, #ff6f00);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: inline-block;
        }
        .my-logo small {
            font-size: 0.7rem;
            font-weight: 400;
            -webkit-text-fill-color: #5a6a7a;
            color: #5a6a7a;
            display: block;
            letter-spacing: 0.3px;
        }
        .nav-toggle {
            display: none;
            font-size: 1.6rem;
            background: none;
            border: none;
            color: #1e2a3a;
            cursor: pointer;
            padding: 4px 8px;
        }
        .nav-menu {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            align-items: center;
        }
        .nav-menu a {
            font-weight: 600;
            font-size: 0.95rem;
            padding: 6px 4px;
            border-bottom: 2px solid transparent;
            color: #2c3e50;
        }
        .nav-menu a:hover {
            border-bottom-color: #d32f2f;
            color: #d32f2f;
            text-decoration: none;
        }
        .nav-menu a i {
            margin-right: 5px;
        }
        .breadcrumb {
            width: 100%;
            margin-top: 12px;
            font-size: 0.85rem;
            color: #5a6a7a;
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }
        .breadcrumb a {
            color: #5a6a7a;
        }
        .breadcrumb a:hover {
            color: #d32f2f;
        }
        .breadcrumb span {
            color: #9aa8b9;
        }
        h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            margin: 32px 0 16px;
            color: #0f1a2a;
        }
        h2 {
            font-size: 1.9rem;
            font-weight: 700;
            margin: 48px 0 16px;
            padding-bottom: 8px;
            border-bottom: 3px solid #d32f2f;
            color: #0f1a2a;
        }
        h3 {
            font-size: 1.4rem;
            font-weight: 600;
            margin: 32px 0 12px;
            color: #1e2a3a;
        }
        h4 {
            font-size: 1.15rem;
            font-weight: 600;
            margin: 24px 0 8px;
            color: #2c3e50;
        }
        p {
            margin: 0 0 20px;
            font-size: 1.05rem;
            color: #2c3e50;
        }
        .highlight {
            background: #fff8e1;
            padding: 4px 8px;
            border-radius: 6px;
            font-weight: 600;
        }
        .insight-box {
            background: #f0f4ff;
            border-left: 5px solid #d32f2f;
            padding: 20px 24px;
            border-radius: 12px;
            margin: 28px 0;
        }
        .insight-box i {
            color: #d32f2f;
            margin-right: 8px;
        }
        .btn-group {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin: 24px 0;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 40px;
            font-weight: 700;
            font-size: 1rem;
            background: #d32f2f;
            color: #fff;
            border: none;
            cursor: pointer;
            transition: all 0.25s;
        }
        .btn:hover {
            background: #b71c1c;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(211, 47, 47, 0.3);
            text-decoration: none;
            color: #fff;
        }
        .btn-outline {
            background: transparent;
            border: 2px solid #d32f2f;
            color: #d32f2f;
        }
        .btn-outline:hover {
            background: #d32f2f;
            color: #fff;
        }
        .link-list {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
            padding: 8px 0 16px;
            list-style: none;
        }
        .link-list li a {
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .link-list li a i {
            font-size: 0.8rem;
            color: #d32f2f;
        }
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 24px;
            margin: 28px 0;
        }
        .card {
            background: #fafcff;
            border-radius: 16px;
            padding: 24px 20px;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
            border: 1px solid #eef2f7;
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
        }
        .card i {
            font-size: 2rem;
            color: #d32f2f;
            margin-bottom: 12px;
        }
        .card h4 {
            margin-top: 0;
        }
        .faq-item {
            padding: 16px 0;
            border-bottom: 1px solid #eef2f7;
        }
        .faq-item strong {
            font-size: 1.1rem;
            display: block;
            margin-bottom: 6px;
            color: #0f1a2a;
        }
        .comment-section,
        .rating-section {
            background: #f8faff;
            border-radius: 20px;
            padding: 28px 32px;
            margin: 40px 0;
            border: 1px solid #e8edf5;
        }
        .comment-section h2,
        .rating-section h2 {
            border-bottom-color: #d32f2f;
            margin-top: 0;
        }
        .form-group {
            margin-bottom: 18px;
        }
        .form-group label {
            font-weight: 600;
            display: block;
            margin-bottom: 6px;
            color: #1e2a3a;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid #dce3ed;
            border-radius: 12px;
            font-size: 1rem;
            font-family: inherit;
            transition: border 0.2s;
            background: #fff;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            outline: none;
            border-color: #d32f2f;
            box-shadow: 0 0 0 3px rgba(211, 47, 47, 0.1);
        }
        .form-group textarea {
            min-height: 120px;
            resize: vertical;
        }
        .star-rating {
            display: flex;
            gap: 6px;
            font-size: 1.8rem;
            color: #ffb300;
            cursor: pointer;
        }
        .star-rating i {
            transition: transform 0.15s;
        }
        .star-rating i:hover {
            transform: scale(1.2);
        }
        .footer {
            border-top: 2px solid #eef2f7;
            padding: 32px 0 16px;
            margin-top: 40px;
        }
        .footer friend-link {
            display: block;
            font-weight: 600;
            font-size: 1.1rem;
            margin: 16px 0 8px;
            color: #0f1a2a;
        }
        .footer .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 20px;
            padding: 4px 0 16px;
        }
        .footer .friend-links a {
            font-weight: 500;
            color: #2c3e50;
        }
        .footer .friend-links a:hover {
            color: #d32f2f;
        }
        .copyright {
            font-size: 0.9rem;
            color: #5a6a7a;
            padding-top: 16px;
            border-top: 1px solid #eef2f7;
            text-align: center;
        }
        .copyright i {
            color: #d32f2f;
        }
        .last-updated {
            display: inline-block;
            background: #eef2f7;
            padding: 4px 16px;
            border-radius: 40px;
            font-size: 0.85rem;
            color: #5a6a7a;
            margin-bottom: 16px;
        }
        @media (max-width: 768px) {
            body {
                padding: 0 8px;
            }
            .container {
                padding: 16px 12px;
                border-radius: 16px;
            }
            .header {
                flex-wrap: wrap;
            }
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 8px;
                padding: 16px 0 4px;
                background: #f9fbff;
                border-radius: 16px;
                margin-top: 8px;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu a {
                padding: 10px 16px;
                width: 100%;
                border-bottom: 1px solid #eef2f7;
            }
            h1 {
                font-size: 1.9rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .breadcrumb {
                font-size: 0.75rem;
            }
            .comment-section,
            .rating-section {
                padding: 16px 14px;
            }
            .btn {
                padding: 10px 20px;
                font-size: 0.9rem;
            }
            .card-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (min-width: 769px) {
            .nav-menu {
                display: flex !important;
            }
        }
        .emoji-big {
            font-size: 1.8rem;
            display: inline-block;
            margin-right: 6px;
        }
        .tag {
            display: inline-block;
            background: #d32f2f10;
            color: #d32f2f;
            padding: 2px 12px;
            border-radius: 40px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-right: 6px;
        }
        .search-form {
            display: flex;
            gap: 8px;
            margin: 20px 0 28px;
        }
        .search-form input {
            flex: 1;
            padding: 12px 18px;
            border: 2px solid #dce3ed;
            border-radius: 40px;
            font-size: 1rem;
        }
        .search-form input:focus {
            border-color: #d32f2f;
            outline: none;
        }
        .search-form button {
            background: #d32f2f;
            border: none;
            color: #fff;
            padding: 0 24px;
            border-radius: 40px;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.2s;
        }
        .search-form button:hover {
            background: #b71c1c;
        }
        .pro-tip {
            background: #e8f5e9;
            border-left: 5px solid #2e7d32;
            padding: 16px 20px;
            border-radius: 12px;
            margin: 20px 0;
        }
        .pro-tip i {
            color: #2e7d32;
            margin-right: 8px;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 24px 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            border-radius: 12px;
            overflow: hidden;
        }
        table th {
            background: #0f1a2a;
            color: #fff;
            padding: 12px 16px;
            text-align: left;
            font-weight: 600;
        }
        table td {
            padding: 12px 16px;
            border-bottom: 1px solid #eef2f7;
        }
        table tr:hover td {
            background: #f5f7fc;
        }
        .quote-box {
            font-style: italic;
            background: #f5f0ff;
            padding: 20px 24px;
            border-radius: 16px;
            margin: 24px 0;
            border-left: 5px solid #7c4dff;
        }
        .quote-box i {
            color: #7c4dff;
            margin-right: 8px;
        }