*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;
            background: #f8faff;
            color: #1e2a3a;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        a {
            color: #2a6f97;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #1b4b6b;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.25rem;
            margin: 0.75rem 0;
        }
        li {
            margin-bottom: 0.4rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.25;
            color: #0f2b3d;
            margin-top: 1.8rem;
            margin-bottom: 0.6rem;
            font-weight: 700;
        }
        h1 {
            font-size: 2.4rem;
            margin-top: 0.2rem;
        }
        h2 {
            font-size: 1.8rem;
            border-bottom: 3px solid #d4e4f0;
            padding-bottom: 0.35rem;
        }
        h3 {
            font-size: 1.35rem;
            color: #1d4a6e;
        }
        h4 {
            font-size: 1.1rem;
            color: #2c5f7e;
        }
        p {
            margin: 0.85rem 0;
            font-size: 1rem;
        }
        strong {
            color: #0a2a3b;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #0f2b3d 0%, #1d4a6e 100%);
            color: #fff;
            padding: 0.5rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding: 0.4rem 0;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: #ffe6a7;
            letter-spacing: -0.5px;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
            transition: transform 0.2s;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .my-logo:hover {
            transform: scale(1.02);
            text-decoration: none;
            color: #ffdd8a;
        }
        .my-logo i {
            font-size: 2rem;
            color: #ffd166;
        }
        .my-logo small {
            font-size: 0.7rem;
            font-weight: 300;
            opacity: 0.8;
            display: block;
            letter-spacing: 1px;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 0.2rem;
            padding: 0;
            margin: 0;
        }
        .nav-list li a {
            color: #f0f7fe;
            padding: 0.5rem 0.9rem;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: background 0.25s, color 0.25s;
            display: flex;
            align-items: center;
            gap: 5px;
        }
        .nav-list li a:hover {
            background: rgba(255, 255, 255, 0.18);
            color: #ffe6a7;
            text-decoration: none;
        }
        .nav-list li a i {
            font-size: 0.85rem;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.2rem 0.5rem;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.12);
        }
        .breadcrumb {
            background: #eaf2f9;
            padding: 0.5rem 0;
            font-size: 0.85rem;
            border-bottom: 1px solid #d4e4f0;
        }
        .breadcrumb ul {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 0.6rem;
            padding: 0;
            margin: 0;
        }
        .breadcrumb ul li+li::before {
            content: "›";
            margin-right: 0.5rem;
            color: #8899aa;
            font-weight: 700;
        }
        .breadcrumb a {
            color: #2a6f97;
        }
        .breadcrumb .current {
            color: #1e2a3a;
            font-weight: 600;
        }
        main {
            padding: 2rem 0 3rem;
        }
        .hero-img-wrap {
            margin: 1.5rem 0 2.5rem;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
            background: #eef6fc;
            position: relative;
        }
        .hero-img-wrap img {
            width: 100%;
            max-height: 480px;
            object-fit: cover;
        }
        .hero-img-caption {
            padding: 0.8rem 1.2rem;
            background: #f1f7fd;
            font-size: 0.9rem;
            color: #2c5f7e;
            font-style: italic;
            border-top: 1px solid #d4e4f0;
        }
        .search-section {
            background: #eaf2f9;
            padding: 1.2rem 1.5rem;
            border-radius: 16px;
            margin: 2rem 0;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 1rem;
        }
        .search-section label {
            font-weight: 600;
            font-size: 1.05rem;
            display: flex;
            align-items: center;
            gap: 8px;
            color: #0f2b3d;
        }
        .search-section form {
            display: flex;
            flex: 1;
            min-width: 200px;
            gap: 0.5rem;
        }
        .search-section input[type="text"] {
            flex: 1;
            padding: 0.65rem 1rem;
            border: 2px solid #c7dae8;
            border-radius: 40px;
            font-size: 0.95rem;
            outline: none;
            transition: border 0.3s;
            background: #fff;
        }
        .search-section input[type="text"]:focus {
            border-color: #2a6f97;
        }
        .search-section button {
            background: #1d4a6e;
            color: #fff;
            border: none;
            padding: 0.65rem 1.4rem;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .search-section button:hover {
            background: #0f2b3d;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            margin-top: 1rem;
        }
        @media (max-width: 920px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
        }
        .article-body {
            min-width: 0;
        }
        .article-body p,
        .article-body li {
            font-size: 1.02rem;
        }
        .sidebar {
            background: #f4f9ff;
            border-radius: 16px;
            padding: 1.6rem 1.4rem;
            border: 1px solid #dce8f2;
            height: fit-content;
            position: sticky;
            top: 90px;
        }
        .sidebar h3 {
            font-size: 1.2rem;
            margin-top: 0;
            border-bottom: 2px solid #c7dae8;
            padding-bottom: 0.4rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar ul {
            list-style: none;
            padding: 0;
            margin: 0.8rem 0 1.2rem;
        }
        .sidebar ul li {
            padding: 0.3rem 0;
            border-bottom: 1px solid #e6eff7;
        }
        .sidebar ul li a {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.92rem;
        }
        .sidebar ul li a i {
            color: #2a6f97;
            width: 18px;
            font-size: 0.8rem;
        }
        .rating-box {
            background: #fff;
            border: 1px solid #d4e4f0;
            border-radius: 14px;
            padding: 1.2rem 1.5rem;
            margin: 2rem 0;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 1rem 2rem;
        }
        .rating-box .stars {
            display: flex;
            gap: 4px;
            font-size: 1.8rem;
            color: #f4c542;
            cursor: pointer;
        }
        .rating-box .stars i {
            transition: transform 0.15s, color 0.15s;
        }
        .rating-box .stars i:hover {
            transform: scale(1.2);
            color: #e6b422;
        }
        .rating-box .stars i.active {
            color: #f4c542;
        }
        .rating-box .stars i.inactive {
            color: #d0d8e0;
        }
        .rating-form {
            display: flex;
            align-items: center;
            gap: 0.8rem;
            flex-wrap: wrap;
        }
        .rating-form input[type="number"] {
            width: 70px;
            padding: 0.4rem 0.6rem;
            border: 2px solid #c7dae8;
            border-radius: 8px;
            font-size: 0.95rem;
            text-align: center;
        }
        .rating-form button {
            background: #2a6f97;
            color: #fff;
            border: none;
            padding: 0.5rem 1.2rem;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s;
        }
        .rating-form button:hover {
            background: #1b4b6b;
        }
        .rating-score-display {
            font-weight: 700;
            font-size: 1.2rem;
            color: #1d4a6e;
        }
        .comments-section {
            margin: 2.5rem 0;
            background: #f4f9ff;
            border-radius: 16px;
            padding: 1.5rem 1.8rem;
            border: 1px solid #d4e4f0;
        }
        .comments-section h2 {
            border-bottom: none;
            margin-top: 0;
        }
        .comment-form textarea {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 2px solid #c7dae8;
            border-radius: 12px;
            font-size: 0.95rem;
            font-family: inherit;
            resize: vertical;
            min-height: 100px;
            transition: border 0.3s;
        }
        .comment-form textarea:focus {
            border-color: #2a6f97;
            outline: none;
        }
        .comment-form .form-row {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            margin-top: 0.6rem;
            align-items: center;
        }
        .comment-form input[type="text"] {
            flex: 1;
            min-width: 160px;
            padding: 0.6rem 1rem;
            border: 2px solid #c7dae8;
            border-radius: 30px;
            font-size: 0.9rem;
        }
        .comment-form input[type="text"]:focus {
            border-color: #2a6f97;
            outline: none;
        }
        .comment-form button {
            background: #1d4a6e;
            color: #fff;
            border: none;
            padding: 0.6rem 1.6rem;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s;
        }
        .comment-form button:hover {
            background: #0f2b3d;
        }
        footer {
            background: #0f2b3d;
            color: #d4e4f0;
            padding: 2.5rem 0 1.5rem;
            margin-top: 3rem;
        }
        footer .container {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2rem;
        }
        @media (max-width: 720px) {
            footer .container {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
        }
        footer h4 {
            color: #ffd166;
            margin-top: 0;
            font-size: 1.1rem;
            border-bottom: 1px solid #2a4a66;
            padding-bottom: 0.4rem;
        }
        footer a {
            color: #b6d4e8;
        }
        footer a:hover {
            color: #ffe6a7;
        }
        friend-link {
            display: block;
            background: #1a3a52;
            padding: 0.8rem 1.2rem;
            border-radius: 12px;
            margin: 0.5rem 0;
            font-size: 0.9rem;
            border-left: 4px solid #ffd166;
        }
        friend-link a {
            display: inline-block;
            margin: 0.2rem 0.6rem 0.2rem 0;
        }
        .copyright {
            grid-column: 1 / -1;
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #2a4a66;
            margin-top: 1rem;
            font-size: 0.85rem;
            color: #9ab0c4;
        }
        @media (max-width: 768px) {
            .header-inner {
                padding: 0.3rem 0;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .my-logo i {
                font-size: 1.5rem;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #143c55;
                border-radius: 16px;
                padding: 0.8rem;
                margin-top: 0.5rem;
                gap: 0.2rem;
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list li a {
                padding: 0.6rem 1rem;
                border-radius: 10px;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1.15rem;
            }
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                margin-top: 1.5rem;
            }
            .rating-box {
                flex-direction: column;
                align-items: stretch;
            }
            .search-section {
                flex-direction: column;
                align-items: stretch;
            }
            .search-section form {
                flex-direction: column;
            }
            .breadcrumb ul {
                font-size: 0.78rem;
            }
            .hero-img-wrap img {
                max-height: 240px;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 12px;
            }
            h1 {
                font-size: 1.5rem;
            }
            .my-logo {
                font-size: 1.2rem;
            }
            .my-logo small {
                font-size: 0.6rem;
            }
            .rating-box .stars {
                font-size: 1.5rem;
            }
            .comments-section {
                padding: 1rem;
            }
        }
        .last-updated {
            display: inline-block;
            background: #eaf2f9;
            padding: 0.3rem 1rem;
            border-radius: 30px;
            font-size: 0.8rem;
            color: #2c5f7e;
            margin: 0.5rem 0 1rem;
        }
        .last-updated i {
            margin-right: 5px;
        }
        .divider {
            height: 2px;
            background: linear-gradient(to right, #d4e4f0, transparent);
            margin: 2rem 0;
        }
        .emoji-big {
            font-size: 1.6rem;
            display: inline-block;
            margin-right: 6px;
            vertical-align: middle;
        }
        .highlight-box {
            background: #e7f3fa;
            border-left: 5px solid #2a6f97;
            padding: 1rem 1.5rem;
            border-radius: 0 12px 12px 0;
            margin: 1.2rem 0;
        }
        .tip-icon {
            color: #f4c542;
        }
        .schema-hidden {
            display: none;
        }
        .anchor-offset {
            scroll-margin-top: 80px;
        }