*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            background: #f5f9fc;
            color: #1e2a3a;
            line-height: 1.75;
            padding: 0 16px;
        }
        a {
            color: #0066cc;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #004499;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            background: #fff;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
            border-radius: 20px;
            padding: 20px 24px 40px;
        }
        h1 {
            font-size: 2.2rem;
            font-weight: 800;
            color: #0b2a4a;
            margin: 0.5em 0 0.3em;
            line-height: 1.2;
        }
        h2 {
            font-size: 1.7rem;
            font-weight: 700;
            color: #0f3b5e;
            margin: 1.2em 0 0.5em;
            border-left: 6px solid #f7a81b;
            padding-left: 18px;
        }
        h3 {
            font-size: 1.35rem;
            font-weight: 600;
            color: #1a4a6e;
            margin: 1em 0 0.4em;
        }
        h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: #2a5a7e;
            margin: 0.8em 0 0.3em;
        }
        p {
            margin-bottom: 1.1em;
            word-spacing: 0.02em;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 400;
            color: #2a405a;
            background: #eef6fb;
            padding: 18px 24px;
            border-radius: 14px;
            border-left: 5px solid #f7a81b;
        }
        .site-header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0 16px;
            border-bottom: 2px solid #e2ecf3;
            position: relative;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 900;
            color: #0b2a4a;
            letter-spacing: -0.5px;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .my-logo .logo-bubble {
            display: inline-block;
            background: #f7a81b;
            color: #0b2a4a;
            border-radius: 50%;
            width: 44px;
            height: 44px;
            line-height: 46px;
            text-align: center;
            font-size: 1.6rem;
            font-weight: 900;
            margin-right: 4px;
        }
        .my-logo .logo-sub {
            font-weight: 300;
            font-size: 0.9rem;
            color: #3a6a8a;
            display: block;
            margin-top: -4px;
        }
        .my-logo:hover {
            text-decoration: none;
            color: #0b2a4a;
        }
        .nav-wrap {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 6px 14px;
            flex-wrap: wrap;
        }
        .nav-list li a {
            font-weight: 600;
            color: #1a4a6e;
            padding: 6px 8px;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .nav-list li a:hover {
            background: #e2ecf3;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: #0b2a4a;
            cursor: pointer;
            padding: 4px 8px;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            padding: 12px 0 4px;
            font-size: 0.9rem;
            color: #4a6a8a;
        }
        .breadcrumb li+li::before {
            content: "›";
            padding: 0 10px;
            color: #8aaac0;
            font-weight: 700;
        }
        .breadcrumb a {
            color: #0066cc;
        }
        .breadcrumb .current {
            color: #2a5a7e;
            font-weight: 600;
        }
        section {
            margin: 2.2em 0;
        }
        .meta-bar {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 18px 30px;
            padding: 10px 0 18px;
            color: #4a6a8a;
            font-size: 0.95rem;
            border-bottom: 1px solid #e2ecf3;
            margin-bottom: 1.2em;
        }
        .meta-bar i {
            margin-right: 6px;
            color: #f7a81b;
        }
        .last-updated {
            font-weight: 600;
            background: #eef6fb;
            padding: 4px 14px;
            border-radius: 30px;
        }
        .feature-img {
            margin: 1.8em 0 2.2em;
            border-radius: 16px;
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.08);
        }
        .feature-img figcaption {
            font-size: 0.9rem;
            color: #4a6a8a;
            padding: 8px 0 0 6px;
            font-style: italic;
        }
        .inline-links {
            background: #f3f7fa;
            padding: 18px 22px;
            border-radius: 14px;
            margin: 1.6em 0;
            display: flex;
            flex-wrap: wrap;
            gap: 8px 18px;
        }
        .inline-links a {
            font-weight: 500;
            background: #fff;
            padding: 4px 14px;
            border-radius: 30px;
            border: 1px solid #d0dfe8;
            transition: all 0.2s;
        }
        .inline-links a:hover {
            background: #f7a81b;
            color: #0b2a4a;
            border-color: #f7a81b;
            text-decoration: none;
        }
        .search-box {
            background: #eef6fb;
            padding: 20px 24px;
            border-radius: 16px;
            margin: 2em 0;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
        }
        .search-box label {
            font-weight: 700;
            color: #0b2a4a;
            font-size: 1.1rem;
        }
        .search-box input[type="text"] {
            flex: 1 1 220px;
            padding: 12px 18px;
            border: 2px solid #c8dae8;
            border-radius: 40px;
            font-size: 1rem;
            outline: none;
            transition: border 0.25s;
            background: #fff;
        }
        .search-box input[type="text"]:focus {
            border-color: #f7a81b;
        }
        .search-box button {
            background: #0b2a4a;
            color: #fff;
            border: none;
            padding: 12px 32px;
            border-radius: 40px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.25s, transform 0.1s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .search-box button:hover {
            background: #1a4a6e;
            transform: scale(1.02);
        }
        .interaction-panel {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin: 2.4em 0;
        }
        .comment-box,
        .rating-box {
            background: #f8fbfe;
            border: 1px solid #dde8f0;
            border-radius: 16px;
            padding: 20px 22px;
        }
        .comment-box h3,
        .rating-box h3 {
            margin-top: 0;
            border-left: 4px solid #f7a81b;
            padding-left: 14px;
        }
        .comment-box textarea {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid #c8dae8;
            border-radius: 12px;
            font-size: 0.95rem;
            resize: vertical;
            min-height: 90px;
            font-family: inherit;
            outline: none;
            transition: border 0.25s;
        }
        .comment-box textarea:focus {
            border-color: #f7a81b;
        }
        .comment-box input[type="text"] {
            width: 100%;
            padding: 10px 16px;
            border: 2px solid #c8dae8;
            border-radius: 12px;
            font-size: 0.95rem;
            margin: 8px 0 4px;
            outline: none;
            transition: border 0.25s;
        }
        .comment-box input[type="text"]:focus {
            border-color: #f7a81b;
        }
        .comment-box button,
        .rating-box button {
            background: #0b2a4a;
            color: #fff;
            border: none;
            padding: 10px 28px;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s;
            margin-top: 8px;
            font-size: 0.95rem;
        }
        .comment-box button:hover,
        .rating-box button:hover {
            background: #1a4a6e;
        }
        .star-group {
            display: flex;
            gap: 6px;
            font-size: 1.9rem;
            color: #d0dae4;
            cursor: pointer;
            margin: 10px 0 6px;
            flex-wrap: wrap;
        }
        .star-group .star {
            transition: color 0.2s, transform 0.15s;
        }
        .star-group .star.active,
        .star-group .star:hover {
            color: #f7a81b;
            transform: scale(1.08);
        }
        .rating-display {
            font-weight: 700;
            font-size: 1.2rem;
            color: #0b2a4a;
        }
        .site-footer {
            margin-top: 3em;
            padding-top: 1.8em;
            border-top: 2px solid #e2ecf3;
        }
        friend-link {
            display: block;
            background: #f3f7fa;
            padding: 16px 20px;
            border-radius: 14px;
            margin: 1.2em 0;
            font-weight: 500;
        }
        friend-link a {
            display: inline-block;
            margin: 4px 14px 4px 0;
            padding: 4px 12px;
            background: #fff;
            border-radius: 30px;
            border: 1px solid #d0dfe8;
            transition: all 0.2s;
        }
        friend-link a:hover {
            background: #f7a81b;
            color: #0b2a4a;
            border-color: #f7a81b;
            text-decoration: none;
        }
        .copyright {
            text-align: center;
            padding: 16px 0 8px;
            color: #4a6a8a;
            font-size: 0.9rem;
        }
        .copyright strong {
            color: #0b2a4a;
        }
        @media (max-width: 820px) {
            .container {
                padding: 14px 16px 30px;
            }
            h1 {
                font-size: 1.7rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            .interaction-panel {
                grid-template-columns: 1fr;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #fff;
                padding: 12px 0 16px;
                border-top: 1px solid #e2ecf3;
                margin-top: 8px;
            }
            .nav-list.show {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            .site-header {
                flex-wrap: wrap;
            }
            .nav-wrap {
                width: 100%;
                flex-direction: column;
                align-items: stretch;
            }
            .my-logo {
                font-size: 1.6rem;
            }
            .my-logo .logo-bubble {
                width: 36px;
                height: 36px;
                line-height: 38px;
                font-size: 1.3rem;
            }
            .breadcrumb {
                font-size: 0.8rem;
            }
            .meta-bar {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .search-box {
                flex-direction: column;
                align-items: stretch;
            }
            .search-box button {
                justify-content: center;
            }
            .star-group {
                font-size: 1.6rem;
            }
        }
        @media (max-width: 480px) {
            body {
                padding: 0 8px;
            }
            .container {
                padding: 10px 12px 24px;
                border-radius: 12px;
            }
            h1 {
                font-size: 1.4rem;
            }
            h2 {
                font-size: 1.2rem;
                padding-left: 12px;
            }
            .lead {
                font-size: 1rem;
                padding: 14px 16px;
            }
            .my-logo {
                font-size: 1.3rem;
            }
            .my-logo .logo-bubble {
                width: 32px;
                height: 32px;
                line-height: 34px;
                font-size: 1.1rem;
            }
            .inline-links {
                flex-direction: column;
                gap: 6px;
            }
        }
        .text-highlight {
            background: linear-gradient(to right, #f7a81b22, #f7a81b44);
            padding: 0 6px;
            font-weight: 600;
            border-radius: 4px;
        }
        .badge {
            display: inline-block;
            background: #f7a81b;
            color: #0b2a4a;
            font-weight: 700;
            padding: 2px 12px;
            border-radius: 30px;
            font-size: 0.8rem;
        }
        .bullet-icon {
            color: #f7a81b;
            margin-right: 8px;
        }
        hr {
            border: none;
            border-top: 2px dashed #dde8f0;
            margin: 2em 0;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.4em 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
        }
        th,
        td {
            padding: 10px 14px;
            text-align: left;
            border-bottom: 1px solid #dde8f0;
        }
        th {
            background: #eef6fb;
            color: #0b2a4a;
            font-weight: 700;
        }
        tr:hover td {
            background: #f8fbfe;
        }
        .fa,
        .fas,
        .far {
            margin-right: 4px;
        }
        .btn-submit {
            transition: all 0.2s;
        }
        .btn-submit:active {
            transform: scale(0.96);
        }