* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, sans-serif;
            background: #f4f7fc;
            color: #1a2634;
            line-height: 1.7;
            padding: 0 16px;
        }
        .wrapper {
            max-width: 1240px;
            margin: 0 auto;
            background: #ffffff;
            box-shadow: 0 0 40px rgba(0, 0, 0, 0.06);
            border-radius: 28px;
            padding: 24px 28px 12px;
            margin-top: 18px;
            margin-bottom: 18px;
        }
        a {
            color: #1a4b7a;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #0d2b4a;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: 20px;
            display: block;
        }
        h1,
        h2,
        h3,
        h4 {
            font-weight: 600;
            letter-spacing: -0.01em;
            color: #0a1e2f;
        }
        h1 {
            font-size: 2.6rem;
            line-height: 1.2;
            margin: 0.4em 0 0.3em;
        }
        h2 {
            font-size: 1.9rem;
            margin: 1.8em 0 0.5em;
            border-bottom: 3px solid #e6edf5;
            padding-bottom: 0.2em;
        }
        h3 {
            font-size: 1.4rem;
            margin: 1.4em 0 0.4em;
        }
        h4 {
            font-size: 1.15rem;
            margin: 1em 0 0.3em;
            color: #1f3a57;
        }
        p {
            margin: 0.6em 0 1em;
            font-size: 1.05rem;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            background: linear-gradient(145deg, #0f2b44, #1b4f7a);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
            display: inline-block;
        }
        .my-logo i {
            -webkit-text-fill-color: #1b4f7a;
            margin-right: 4px;
        }
        header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 8px 0 16px;
            border-bottom: 1px solid #e2eaf1;
            position: relative;
        }
        .nav-menu {
            display: flex;
            gap: 8px 20px;
            flex-wrap: wrap;
            align-items: center;
        }
        .nav-menu a {
            font-weight: 500;
            padding: 6px 12px;
            border-radius: 40px;
            font-size: 0.95rem;
            color: #1a3c5a;
        }
        .nav-menu a:hover {
            background: #e8f0fe;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: #1a3c5a;
            cursor: pointer;
            padding: 4px 12px;
        }
        .breadcrumb {
            padding: 12px 0 6px;
            font-size: 0.9rem;
            color: #4f6f8a;
        }
        .breadcrumb span {
            margin: 0 4px;
        }
        .breadcrumb a {
            color: #2a5a7a;
        }
        .featured-image {
            margin: 28px 0 32px;
            border-radius: 24px;
            background: #eef3f9;
            padding: 12px;
        }
        .featured-image figcaption {
            font-size: 0.9rem;
            color: #3d5f7a;
            margin-top: 10px;
            text-align: center;
        }
        .tool-section {
            background: #f0f6fe;
            border-radius: 28px;
            padding: 28px 32px;
            margin: 40px 0;
        }
        .tool-section form {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
        }
        .tool-section input[type="text"],
        .tool-section input[type="search"],
        .tool-section textarea {
            flex: 1 1 220px;
            padding: 14px 20px;
            border: 1px solid #cbdbe9;
            border-radius: 60px;
            font-size: 1rem;
            background: white;
            transition: 0.2s;
            font-family: inherit;
        }
        .tool-section input:focus,
        .tool-section textarea:focus {
            outline: none;
            border-color: #1b4f7a;
            box-shadow: 0 0 0 4px rgba(27, 79, 122, 0.12);
        }
        .tool-section button {
            background: #1b4f7a;
            color: white;
            border: none;
            padding: 14px 34px;
            border-radius: 60px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .tool-section button:hover {
            background: #0d3554;
            transform: scale(1.02);
        }
        .rating-stars {
            display: flex;
            gap: 6px;
            font-size: 2rem;
            color: #d4a017;
            cursor: pointer;
            flex-wrap: wrap;
        }
        .rating-stars i {
            transition: 0.15s;
        }
        .rating-stars i:hover {
            transform: scale(1.2);
            color: #f5b342;
        }
        .comment-box {
            margin: 20px 0;
        }
        .comment-box textarea {
            width: 100%;
            min-height: 100px;
            border-radius: 20px;
            padding: 18px;
            border: 1px solid #cbdbe9;
            font-family: inherit;
            font-size: 1rem;
            resize: vertical;
        }
        .friend-link {
            display: block;
            padding: 20px 0 8px;
            border-top: 1px solid #dce6ef;
            margin-top: 40px;
        }
        .friend-link a {
            display: inline-block;
            margin: 4px 16px 4px 0;
            padding: 6px 16px;
            background: #eef3f9;
            border-radius: 40px;
            font-size: 0.95rem;
        }
        .friend-link a:hover {
            background: #dce6ef;
            text-decoration: none;
        }
        footer {
            padding: 28px 0 12px;
            font-size: 0.95rem;
            color: #3d5f7a;
            border-top: 1px solid #e2eaf1;
            margin-top: 32px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
        }
        .last-updated {
            background: #e8f0fe;
            padding: 6px 18px;
            border-radius: 40px;
            font-size: 0.85rem;
            display: inline-block;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 24px 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.98rem;
        }
        th,
        td {
            padding: 12px 16px;
            text-align: left;
            border-bottom: 1px solid #dce6ef;
        }
        th {
            background: #e2ebf5;
            font-weight: 600;
        }
        blockquote {
            border-left: 5px solid #1b4f7a;
            padding: 16px 24px;
            margin: 24px 0;
            background: #f4f9ff;
            border-radius: 0 20px 20px 0;
            font-style: italic;
        }
        .highlight-box {
            background: #fcf8e7;
            border-radius: 20px;
            padding: 20px 28px;
            border-left: 6px solid #d4a017;
            margin: 28px 0;
        }
        .emoji-big {
            font-size: 1.8rem;
            vertical-align: middle;
        }
        @media (max-width: 780px) {
            .wrapper {
                padding: 16px 14px 10px;
                border-radius: 18px;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            .hamburger {
                display: block;
            }
            .nav-menu {
                display: none;
                width: 100%;
                flex-direction: column;
                padding: 16px 0 8px;
                gap: 4px;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu a {
                padding: 10px 16px;
                width: 100%;
                border-radius: 12px;
            }
            .tool-section {
                padding: 18px 16px;
            }
            .tool-section form {
                flex-direction: column;
            }
            .tool-section input,
            .tool-section textarea {
                width: 100%;
                flex: 1 1 auto;
            }
            .rating-stars {
                font-size: 1.6rem;
            }
            footer {
                flex-direction: column;
                gap: 12px;
                text-align: center;
            }
            .friend-link a {
                margin: 4px 8px;
            }
        }
        @media (max-width: 480px) {
            body {
                padding: 0 6px;
            }
            .wrapper {
                padding: 10px 10px 8px;
            }
            h1 {
                font-size: 1.5rem;
            }
            .my-logo {
                font-size: 1.6rem;
            }
        }
        html {
            scroll-behavior: smooth;
        }
        .content-section {
            max-width: 100%;
        }
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 24px;
            margin: 28px 0;
        }
        .card {
            background: #f6faff;
            border-radius: 20px;
            padding: 24px 20px;
            border: 1px solid #e2ebf5;
            transition: 0.2s;
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.06);
        }
        .card i {
            font-size: 2.2rem;
            color: #1b4f7a;
            margin-bottom: 8px;
        }
        .tag {
            background: #e2ebf5;
            padding: 2px 14px;
            border-radius: 40px;
            font-size: 0.8rem;
            font-weight: 600;
            color: #1a3c5a;
        }