* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: #f4f7fb;
            color: #1e2a3a;
            line-height: 1.7;
            font-size: 16px;
            padding: 0 16px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            background: #ffffff;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
            border-radius: 28px;
            padding: 20px 24px 40px;
            margin-top: 20px;
            margin-bottom: 40px;
        }
        header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0 18px;
            border-bottom: 2px solid #e9edf2;
            position: relative;
        }
        .my-logo {
            font-size: 28px;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: #0b2b3b;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .my-logo i {
            color: #e67e22;
            font-size: 30px;
        }
        .my-logo span {
            background: #e67e22;
            color: #fff;
            font-size: 14px;
            padding: 2px 12px;
            border-radius: 40px;
            margin-left: 6px;
            font-weight: 600;
        }
        .hamburger {
            display: none;
            font-size: 28px;
            background: none;
            border: none;
            color: #0b2b3b;
            cursor: pointer;
            padding: 4px 10px;
            border-radius: 8px;
            transition: 0.2s;
        }
        .hamburger:hover {
            background: #eef2f7;
        }
        nav {
            display: flex;
            gap: 18px;
            flex-wrap: wrap;
            align-items: center;
        }
        nav a {
            text-decoration: none;
            color: #1e2a3a;
            font-weight: 600;
            font-size: 15px;
            padding: 6px 14px;
            border-radius: 40px;
            transition: 0.2s;
        }
        nav a:hover,
        nav a.active {
            background: #e67e22;
            color: #fff;
        }
        .breadcrumb {
            width: 100%;
            margin-top: 14px;
            font-size: 14px;
            color: #5a6b7c;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 10px;
            padding: 8px 0 4px;
            border-top: 1px solid #e9edf2;
        }
        .breadcrumb a {
            color: #e67e22;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb span {
            color: #7a8a9a;
        }
        h1 {
            font-size: 36px;
            font-weight: 800;
            color: #0b2b3b;
            margin: 28px 0 12px;
            line-height: 1.2;
        }
        h1 i {
            color: #e67e22;
            margin-right: 12px;
        }
        .last-update {
            display: block;
            color: #7a8a9a;
            font-size: 14px;
            margin-bottom: 28px;
            border-left: 4px solid #e67e22;
            padding-left: 16px;
            background: #f8fafc;
            border-radius: 0 12px 12px 0;
            padding: 10px 18px;
        }
        h2 {
            font-size: 28px;
            font-weight: 700;
            color: #0b2b3b;
            margin: 40px 0 14px 0;
            border-bottom: 3px solid #e67e22;
            padding-bottom: 8px;
            display: inline-block;
        }
        h3 {
            font-size: 22px;
            font-weight: 600;
            color: #1e3a4a;
            margin: 28px 0 10px 0;
        }
        h4 {
            font-size: 18px;
            font-weight: 600;
            color: #2c4a5e;
            margin: 20px 0 8px 0;
        }
        p {
            margin-bottom: 18px;
            color: #1e2a3a;
            font-size: 16px;
        }
        .feature-img {
            width: 100%;
            max-width: 800px;
            border-radius: 20px;
            margin: 24px 0;
            box-shadow: 0 6px 18px rgba(0, 0, 0, 0.08);
            display: block;
        }
        .highlight {
            background: #fef6e7;
            border-left: 6px solid #e67e22;
            padding: 16px 22px;
            border-radius: 0 16px 16px 0;
            margin: 24px 0;
        }
        .highlight i {
            color: #e67e22;
            margin-right: 10px;
        }
        .btn {
            display: inline-block;
            background: #e67e22;
            color: #fff;
            padding: 12px 32px;
            border-radius: 50px;
            font-weight: 600;
            text-decoration: none;
            transition: 0.25s;
            border: none;
            cursor: pointer;
            font-size: 16px;
        }
        .btn:hover {
            background: #c96d1a;
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(230, 126, 34, 0.3);
        }
        .btn i {
            margin-right: 8px;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            margin: 30px 0;
        }
        .card {
            background: #f8fafc;
            border-radius: 20px;
            padding: 22px 24px;
            transition: 0.2s;
            border: 1px solid #e9edf2;
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.06);
        }
        .card i {
            font-size: 28px;
            color: #e67e22;
            margin-bottom: 10px;
        }
        .stats-table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            font-size: 15px;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
        }
        .stats-table th {
            background: #0b2b3b;
            color: #fff;
            padding: 14px 18px;
            text-align: left;
        }
        .stats-table td {
            padding: 12px 18px;
            border-bottom: 1px solid #e9edf2;
            background: #fafcff;
        }
        .stats-table tr:hover td {
            background: #fef6e7;
        }
        .blockquote {
            font-style: italic;
            background: #f0f4fa;
            padding: 20px 28px;
            border-radius: 20px;
            margin: 28px 0;
            border-left: 6px solid #0b2b3b;
            font-size: 17px;
            color: #1e3a4a;
        }
        .blockquote i {
            color: #e67e22;
            margin-right: 8px;
        }
        .faq-item {
            padding: 14px 0;
            border-bottom: 1px solid #e9edf2;
        }
        .faq-item strong {
            color: #0b2b3b;
            font-size: 17px;
        }
        .faq-item p {
            margin: 6px 0 0 0;
            color: #3a4a5a;
        }
        .search-box {
            background: #f0f4fa;
            border-radius: 60px;
            padding: 6px 6px 6px 24px;
            display: flex;
            align-items: center;
            max-width: 520px;
            margin: 20px 0 30px;
            border: 1px solid #dce2ea;
            transition: 0.2s;
        }
        .search-box:focus-within {
            border-color: #e67e22;
            box-shadow: 0 0 0 3px rgba(230, 126, 34, 0.15);
        }
        .search-box input {
            flex: 1;
            border: none;
            background: transparent;
            padding: 14px 0;
            font-size: 16px;
            outline: none;
            color: #1e2a3a;
        }
        .search-box button {
            background: #e67e22;
            color: #fff;
            border: none;
            border-radius: 50px;
            padding: 10px 24px;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
            font-size: 15px;
        }
        .search-box button:hover {
            background: #c96d1a;
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
            margin: 40px 0 20px;
        }
        .form-card {
            background: #f8fafc;
            border-radius: 24px;
            padding: 28px 30px;
            border: 1px solid #e9edf2;
        }
        .form-card h3 {
            margin-top: 0;
            font-size: 22px;
            border-bottom: 2px solid #e67e22;
            display: inline-block;
            padding-bottom: 6px;
        }
        .form-card input,
        .form-card textarea,
        .form-card select {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid #dce2ea;
            border-radius: 12px;
            font-size: 15px;
            margin: 8px 0 14px;
            background: #fff;
            transition: 0.2s;
            font-family: inherit;
        }
        .form-card input:focus,
        .form-card textarea:focus,
        .form-card select:focus {
            border-color: #e67e22;
            box-shadow: 0 0 0 3px rgba(230, 126, 34, 0.12);
            outline: none;
        }
        .form-card textarea {
            min-height: 100px;
            resize: vertical;
        }
        .form-card .btn {
            width: 100%;
            text-align: center;
        }
        .star-rating {
            display: flex;
            gap: 6px;
            font-size: 28px;
            color: #dce2ea;
            margin: 6px 0 14px;
            cursor: pointer;
        }
        .star-rating i {
            transition: 0.15s;
        }
        .star-rating i.active,
        .star-rating i:hover {
            color: #e67e22;
        }
        footer {
            margin-top: 50px;
            padding-top: 30px;
            border-top: 2px solid #e9edf2;
        }
        friend-link {
            display: block;
            padding: 18px 0 10px;
            font-style: normal;
        }
        friend-link a {
            color: #e67e22;
            text-decoration: none;
            font-weight: 500;
            margin: 0 14px 6px 0;
            display: inline-block;
        }
        friend-link a:hover {
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            padding: 20px 0 6px;
            font-size: 14px;
            color: #7a8a9a;
            border-top: 1px solid #e9edf2;
            margin-top: 16px;
        }
        .copyright strong {
            color: #0b2b3b;
        }
        @media (max-width: 820px) {
            .container {
                padding: 16px 16px 30px;
                border-radius: 20px;
            }
            h1 {
                font-size: 28px;
            }
            h2 {
                font-size: 24px;
            }
            .grid-2,
            .feedback-grid {
                grid-template-columns: 1fr;
            }
            .hamburger {
                display: block;
            }
            nav {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 6px;
                padding: 16px 0 10px;
                border-top: 1px solid #e9edf2;
                margin-top: 10px;
            }
            nav.open {
                display: flex;
            }
            nav a {
                width: 100%;
                padding: 10px 16px;
                border-radius: 12px;
            }
            .my-logo {
                font-size: 22px;
            }
            .stats-table {
                font-size: 13px;
            }
            .stats-table th,
            .stats-table td {
                padding: 10px 12px;
            }
            .feature-img {
                max-width: 100%;
            }
            .search-box {
                max-width: 100%;
                flex-wrap: wrap;
                padding: 6px 6px 6px 16px;
            }
            .search-box input {
                min-width: 120px;
            }
            .star-rating {
                font-size: 24px;
            }
        }
        @media (max-width: 480px) {
            h1 {
                font-size: 24px;
            }
            h2 {
                font-size: 20px;
            }
            .container {
                padding: 12px 12px 24px;
            }
            .btn {
                padding: 10px 24px;
                font-size: 14px;
            }
            .form-card {
                padding: 18px 16px;
            }
        }
        html {
            scroll-behavior: smooth;
        }
        a {
            color: #e67e22;
        }
        a:hover {
            color: #c96d1a;
        }
        .tag {
            display: inline-block;
            background: #eef2f7;
            border-radius: 40px;
            padding: 2px 16px;
            font-size: 13px;
            font-weight: 600;
            color: #0b2b3b;
        }
        .emoji-big {
            font-size: 32px;
            margin-right: 8px;
        }