*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
            background: #f6f8fc;
            color: #1a2634;
            line-height: 1.75;
            padding: 0;
            margin: 0;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: #1e6f9f;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #0b3b5e;
            text-decoration: underline;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.25;
            margin-top: 1.8rem;
            margin-bottom: 0.6rem;
            font-weight: 700;
            color: #0d2137;
        }
        h1 {
            font-size: 2.2rem;
            margin-top: 0.4rem;
        }
        h2 {
            font-size: 1.7rem;
            border-bottom: 2px solid #dce5f0;
            padding-bottom: 0.3rem;
        }
        h3 {
            font-size: 1.35rem;
            color: #1a3a5c;
        }
        h4 {
            font-size: 1.1rem;
            color: #2a4a6c;
        }
        p {
            margin-bottom: 1.2rem;
        }
        .wrapper {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.2rem;
        }
        .site-header {
            background: linear-gradient(145deg, #0b1e33 0%, #1a3a5c 100%);
            color: #fff;
            padding: 0.8rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.8rem;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }
        .my-logo i {
            color: #fcd34d;
            font-size: 1.8rem;
        }
        .my-logo:hover {
            color: #fcd34d;
            text-decoration: none;
        }
        .my-logo span {
            color: #fcd34d;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.2rem 0.4rem;
            transition: transform 0.2s;
        }
        .hamburger:hover {
            transform: scale(1.1);
        }
        .hamburger.active i::before {
            content: "\f00d";
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 0.2rem;
            flex-wrap: wrap;
        }
        .main-nav a {
            color: #e0edf9;
            padding: 0.5rem 1rem;
            border-radius: 30px;
            font-weight: 500;
            font-size: 0.92rem;
            transition: background 0.25s, color 0.25s;
            white-space: nowrap;
        }
        .main-nav a:hover {
            background: rgba(255, 255, 255, 0.15);
            color: #fcd34d;
            text-decoration: none;
        }
        .main-nav a.active {
            background: #fcd34d;
            color: #0b1e33;
        }
        .breadcrumb-wrap {
            background: #ecf1f7;
            padding: 0.6rem 0;
            border-bottom: 1px solid #dce5f0;
            font-size: 0.9rem;
        }
        .breadcrumb-wrap nav ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 0.6rem;
            padding: 0;
            margin: 0;
        }
        .breadcrumb-wrap nav ol li {
            display: flex;
            align-items: center;
        }
        .breadcrumb-wrap nav ol li+li::before {
            content: "\f054";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 0.65rem;
            color: #7a8a9e;
            margin-right: 0.5rem;
        }
        .breadcrumb-wrap nav ol li a {
            color: #1e6f9f;
        }
        .breadcrumb-wrap nav ol li [aria-current="page"] {
            color: #2c3e50;
            font-weight: 600;
        }
        .main-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            padding: 2rem 0 3rem;
        }
        .article-body {
            background: #fff;
            border-radius: 20px;
            padding: 2rem 2.2rem;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.04);
        }
        .sidebar {
            position: sticky;
            top: 100px;
            align-self: start;
            background: #fff;
            border-radius: 20px;
            padding: 1.6rem 1.4rem;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.04);
        }
        .sidebar h3 {
            font-size: 1.15rem;
            margin-top: 0;
            border-bottom: 2px solid #e8edf4;
            padding-bottom: 0.5rem;
            margin-bottom: 1rem;
        }
        .sidebar ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .sidebar ul li {
            padding: 0.4rem 0;
            border-bottom: 1px solid #f0f3f8;
        }
        .sidebar ul li a {
            font-weight: 500;
            font-size: 0.95rem;
        }
        .sidebar ul li a i {
            margin-right: 0.4rem;
            color: #fcd34d;
            font-size: 0.8rem;
        }
        .featured-image {
            margin: 1.5rem 0 2rem;
            border-radius: 18px;
            overflow: hidden;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.06);
            background: #eef3f9;
        }
        .featured-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }
        .featured-image figcaption {
            padding: 0.8rem 1.2rem;
            font-size: 0.9rem;
            color: #4b5f73;
            background: #f8fafd;
            border-top: 1px solid #e0e8f0;
            font-style: italic;
        }
        .value-table-wrap {
            overflow-x: auto;
            margin: 1.8rem 0;
            border-radius: 14px;
            border: 1px solid #e2eaf2;
        }
        .value-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
            min-width: 500px;
        }
        .value-table th {
            background: #0d2137;
            color: #fff;
            padding: 0.8rem 1rem;
            text-align: left;
            font-weight: 600;
        }
        .value-table td {
            padding: 0.7rem 1rem;
            border-bottom: 1px solid #e8edf4;
        }
        .value-table tr:nth-child(even) {
            background: #f7faff;
        }
        .value-table tr:hover td {
            background: #ecf3fd;
        }
        .value-table .highlight {
            font-weight: 700;
            color: #1a6b3c;
        }
        .search-form {
            display: flex;
            gap: 0.5rem;
            margin: 1.2rem 0 2rem;
            flex-wrap: wrap;
        }
        .search-form input[type="text"] {
            flex: 1;
            min-width: 200px;
            padding: 0.8rem 1.2rem;
            border: 2px solid #dce5f0;
            border-radius: 40px;
            font-size: 1rem;
            outline: none;
            transition: border 0.25s, box-shadow 0.25s;
        }
        .search-form input[type="text"]:focus {
            border-color: #1e6f9f;
            box-shadow: 0 0 0 4px rgba(30, 111, 159, 0.12);
        }
        .search-form button {
            background: #0d2137;
            color: #fff;
            border: none;
            padding: 0.8rem 1.6rem;
            border-radius: 40px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.25s, transform 0.2s;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .search-form button:hover {
            background: #1a3a5c;
            transform: scale(1.02);
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.8rem;
            margin: 2.5rem 0 1.2rem;
            padding-top: 1.5rem;
            border-top: 2px solid #e8edf4;
        }
        .feedback-card {
            background: #f8fafd;
            border-radius: 16px;
            padding: 1.5rem 1.8rem;
            border: 1px solid #e2eaf2;
        }
        .feedback-card h3 {
            margin-top: 0;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .feedback-card form {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
            margin-top: 0.6rem;
        }
        .feedback-card textarea,
        .feedback-card input {
            padding: 0.7rem 1rem;
            border: 2px solid #dce5f0;
            border-radius: 12px;
            font-size: 0.95rem;
            font-family: inherit;
            resize: vertical;
            outline: none;
            transition: border 0.25s;
        }
        .feedback-card textarea:focus,
        .feedback-card input:focus {
            border-color: #1e6f9f;
        }
        .feedback-card textarea {
            min-height: 80px;
        }
        .feedback-card .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.2rem;
        }
        .feedback-card .star-rating input {
            display: none;
        }
        .feedback-card .star-rating label {
            font-size: 1.8rem;
            color: #d0d9e4;
            cursor: pointer;
            transition: color 0.2s;
        }
        .feedback-card .star-rating input:checked~label,
        .feedback-card .star-rating label:hover,
        .feedback-card .star-rating label:hover~label {
            color: #f5b342;
        }
        .feedback-card .btn-submit {
            background: #0d2137;
            color: #fff;
            border: none;
            padding: 0.7rem 1.5rem;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s, transform 0.2s;
            align-self: flex-start;
        }
        .feedback-card .btn-submit:hover {
            background: #1a3a5c;
            transform: scale(1.02);
        }
        friend-link {
            display: block;
            background: #edf2f9;
            border-radius: 16px;
            padding: 1.5rem 2rem;
            margin: 2rem 0 0.5rem;
        }
        friend-link h3 {
            margin-top: 0;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        friend-link ul {
            list-style: none;
            padding: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem 1.2rem;
            margin-top: 0.6rem;
        }
        friend-link ul li a {
            font-weight: 500;
            padding: 0.2rem 0;
            border-bottom: 2px solid transparent;
            transition: border-color 0.2s;
        }
        friend-link ul li a:hover {
            border-bottom-color: #1e6f9f;
            text-decoration: none;
        }
        .site-footer {
            background: #0b1e33;
            color: #bcccdb;
            padding: 2rem 0 1.5rem;
            margin-top: 2rem;
            font-size: 0.9rem;
        }
        .site-footer .footer-inner {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 0.8rem;
            text-align: center;
        }
        .site-footer .copyright {
            font-size: 0.85rem;
            color: #889eb3;
        }
        .site-footer a {
            color: #fcd34d;
        }
        .site-footer a:hover {
            color: #fff;
        }
        @media (max-width: 1024px) {
            .main-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .sidebar {
                position: static;
                order: 2;
            }
            .article-body {
                order: 1;
            }
            .feedback-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                gap: 0.2rem;
                padding: 0.8rem 0 0.4rem;
                background: rgba(11, 30, 51, 0.95);
                border-radius: 16px;
                margin-top: 0.4rem;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 0.7rem 1.2rem;
                border-radius: 10px;
            }
            .article-body {
                padding: 1.4rem 1rem;
            }
            h1 {
                font-size: 1.7rem;
            }
            h2 {
                font-size: 1.35rem;
            }
            .feedback-grid {
                grid-template-columns: 1fr;
            }
            .search-form input[type="text"] {
                min-width: 140px;
            }
            .value-table {
                font-size: 0.85rem;
                min-width: 360px;
            }
        }
        @media (max-width: 480px) {
            .wrapper {
                padding: 0 0.8rem;
            }
            .my-logo {
                font-size: 1.25rem;
            }
            .article-body {
                padding: 1rem 0.8rem;
                border-radius: 12px;
            }
            .feedback-card {
                padding: 1rem;
            }
            friend-link {
                padding: 1rem 1.2rem;
            }
            .value-table th,
            .value-table td {
                padding: 0.5rem 0.6rem;
            }
        }
        .last-updated {
            display: inline-block;
            background: #ecf3fd;
            padding: 0.3rem 1rem;
            border-radius: 40px;
            font-size: 0.85rem;
            color: #2a4a6c;
            margin-bottom: 0.8rem;
            font-weight: 500;
        }
        .last-updated i {
            margin-right: 0.3rem;
        }
        .highlight-box {
            background: #f0f7fe;
            border-left: 4px solid #1e6f9f;
            padding: 1rem 1.5rem;
            border-radius: 0 12px 12px 0;
            margin: 1.5rem 0;
        }
        .emoji-lg {
            font-size: 1.4rem;
            margin-right: 0.2rem;
        }
        .text-muted {
            color: #5a6f84;
        }
        .mt-2 {
            margin-top: 1.2rem;
        }
        .mb-1 {
            margin-bottom: 0.5rem;
        }
        .fw-700 {
            font-weight: 700;
        }
        .inline-icon {
            margin-right: 0.3rem;
            color: #f5b342;
        }
        .pill-tag {
            display: inline-block;
            background: #e2eaf2;
            padding: 0.15rem 0.9rem;
            border-radius: 40px;
            font-size: 0.8rem;
            font-weight: 600;
            color: #1a3a5c;
        }