* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            background: #f7f9fc;
            color: #1e293b;
            line-height: 1.7;
            padding: 0 1rem;
        }
        a {
            color: #0f3b5e;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #e67e22;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        h1,
        h2,
        h3,
        h4 {
            line-height: 1.3;
            color: #0c2a41;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            background: #ffffff;
            box-shadow: 0 0 30px rgba(0, 0, 0, 0.04);
            border-radius: 24px;
            padding: 1.5rem 2rem 3rem;
            margin-top: 1.5rem;
            margin-bottom: 3rem;
        }
        .site-header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 0.75rem 0 1.25rem;
            border-bottom: 2px solid #e9edf2;
            position: relative;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            background: linear-gradient(135deg, #0f3b5e, #1a6b8a);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: inline-block;
        }
        .my-logo:hover {
            text-decoration: none;
            opacity: 0.85;
        }
        .my-logo small {
            font-size: 0.7rem;
            font-weight: 400;
            -webkit-text-fill-color: #4a5b6e;
            letter-spacing: 0.02em;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid #0f3b5e;
            border-radius: 8px;
            padding: 0.4rem 0.7rem;
            font-size: 1.4rem;
            color: #0f3b5e;
            cursor: pointer;
            transition: 0.2s;
        }
        .nav-toggle:hover {
            background: #0f3b5e;
            color: #fff;
        }
        .nav-menu {
            display: flex;
            flex-wrap: wrap;
            gap: 0.2rem 1.2rem;
            list-style: none;
            padding: 0;
            align-items: center;
        }
        .nav-menu li a {
            font-weight: 500;
            padding: 0.3rem 0;
            border-bottom: 2px solid transparent;
        }
        .nav-menu li a:hover {
            border-bottom-color: #e67e22;
            text-decoration: none;
        }
        .nav-menu li a.active {
            border-bottom-color: #0f3b5e;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem 0.7rem;
            font-size: 0.85rem;
            padding: 0.8rem 0 0.2rem;
            color: #5a6a7a;
        }
        .breadcrumb a {
            color: #0f3b5e;
        }
        .breadcrumb span {
            color: #8a9aa8;
        }
        .search-bar {
            display: flex;
            gap: 0.4rem;
            max-width: 480px;
            margin: 1.8rem 0 1.2rem;
        }
        .search-bar input {
            flex: 1;
            padding: 0.7rem 1.2rem;
            border: 2px solid #dce2ea;
            border-radius: 40px;
            font-size: 0.95rem;
            outline: none;
            transition: 0.2s;
        }
        .search-bar input:focus {
            border-color: #0f3b5e;
        }
        .search-bar button {
            padding: 0.7rem 1.6rem;
            border: none;
            border-radius: 40px;
            background: #0f3b5e;
            color: #fff;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
        }
        .search-bar button:hover {
            background: #1a6b8a;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 280px;
            gap: 2.5rem;
            margin-top: 1.2rem;
        }
        .main-article h1 {
            font-size: 2.4rem;
            margin-bottom: 0.5rem;
            letter-spacing: -0.01em;
        }
        .main-article .meta {
            color: #5a6a7a;
            font-size: 0.9rem;
            margin-bottom: 1.8rem;
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem 1.8rem;
        }
        .main-article .meta i {
            margin-right: 0.3rem;
        }
        .main-article h2 {
            font-size: 1.8rem;
            margin: 2.2rem 0 0.8rem;
            border-left: 5px solid #e67e22;
            padding-left: 1rem;
        }
        .main-article h3 {
            font-size: 1.35rem;
            margin: 1.8rem 0 0.5rem;
            color: #1a4a66;
        }
        .main-article h4 {
            font-size: 1.1rem;
            margin: 1.2rem 0 0.3rem;
            color: #2a5a76;
        }
        .main-article p {
            margin-bottom: 1.1rem;
        }
        .main-article .feature-img {
            border-radius: 20px;
            margin: 1.5rem 0;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.06);
        }
        .sidebar {
            background: #f2f5f9;
            border-radius: 20px;
            padding: 1.5rem 1.5rem 2rem;
            align-self: start;
            position: sticky;
            top: 1.5rem;
        }
        .sidebar h3 {
            font-size: 1.2rem;
            margin-bottom: 0.8rem;
            border-bottom: 2px solid #dce2ea;
            padding-bottom: 0.4rem;
        }
        .sidebar ul {
            list-style: none;
            padding: 0;
        }
        .sidebar ul li {
            padding: 0.35rem 0;
        }
        .sidebar ul li a {
            font-weight: 500;
        }
        .char-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
            gap: 1.2rem;
            margin: 1.5rem 0;
        }
        .char-card {
            background: #f7fafc;
            border-radius: 16px;
            padding: 1.2rem 0.8rem 1rem;
            text-align: center;
            transition: 0.2s;
            border: 1px solid #e9edf2;
        }
        .char-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.06);
            border-color: #b0c4d8;
        }
        .char-card i {
            font-size: 2.8rem;
            color: #0f3b5e;
            margin-bottom: 0.4rem;
        }
        .char-card h4 {
            font-size: 1rem;
            margin: 0.3rem 0 0.1rem;
        }
        .char-card .badge {
            display: inline-block;
            background: #e67e22;
            color: #fff;
            padding: 0.05rem 0.7rem;
            border-radius: 40px;
            font-size: 0.7rem;
            font-weight: 600;
        }
        .rating-area,
        .comment-area {
            margin: 2.5rem 0 1.8rem;
            padding: 1.8rem 2rem;
            background: #f2f5f9;
            border-radius: 20px;
        }
        .rating-area h3,
        .comment-area h3 {
            margin-top: 0;
        }
        .star-group {
            display: flex;
            gap: 0.5rem;
            font-size: 1.8rem;
            color: #d0d7e0;
            cursor: pointer;
            margin: 0.6rem 0 0.8rem;
        }
        .star-group i.active {
            color: #f1c40f;
        }
        .star-group i:hover {
            color: #f1c40f;
        }
        .rating-area button,
        .comment-area button {
            padding: 0.6rem 1.8rem;
            border: none;
            border-radius: 40px;
            background: #0f3b5e;
            color: #fff;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
        }
        .rating-area button:hover,
        .comment-area button:hover {
            background: #1a6b8a;
        }
        .comment-area textarea {
            width: 100%;
            min-height: 100px;
            padding: 0.8rem 1.2rem;
            border: 2px solid #dce2ea;
            border-radius: 16px;
            font-size: 0.95rem;
            font-family: inherit;
            resize: vertical;
            outline: none;
            transition: 0.2s;
        }
        .comment-area textarea:focus {
            border-color: #0f3b5e;
        }
        .comment-area .row {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            align-items: center;
            margin-top: 0.8rem;
        }
        .comment-area .row input {
            flex: 1;
            min-width: 180px;
            padding: 0.6rem 1.2rem;
            border: 2px solid #dce2ea;
            border-radius: 40px;
            font-size: 0.9rem;
            outline: none;
        }
        .comment-area .row input:focus {
            border-color: #0f3b5e;
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
            font-size: 0.95rem;
        }
        .data-table th {
            background: #0f3b5e;
            color: #fff;
            padding: 0.7rem 1rem;
            text-align: left;
            font-weight: 600;
        }
        .data-table td {
            padding: 0.6rem 1rem;
            border-bottom: 1px solid #e9edf2;
        }
        .data-table tr:hover td {
            background: #f7fafc;
        }
        .site-footer {
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 2px solid #e9edf2;
            font-size: 0.9rem;
            color: #3a4a5a;
        }
        .site-footer friend-link {
            display: block;
            margin-bottom: 1.2rem;
        }
        .site-footer friend-link a {
            display: inline-block;
            margin: 0.2rem 1.2rem 0.2rem 0;
        }
        .site-footer .copyright {
            padding-top: 1rem;
            border-top: 1px solid #e9edf2;
            font-size: 0.85rem;
            color: #6a7a8a;
        }
        @media (max-width: 820px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                order: 2;
                margin-top: 2rem;
            }
            .main-article {
                order: 1;
            }
        }
        @media (max-width: 680px) {
            .container {
                padding: 1rem 1rem 2rem;
                border-radius: 16px;
            }
            .site-header {
                flex-wrap: wrap;
            }
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: start;
                padding: 1rem 0 0.5rem;
                gap: 0.3rem;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu li a {
                display: block;
                padding: 0.5rem 0;
            }
            .main-article h1 {
                font-size: 1.8rem;
            }
            .main-article h2 {
                font-size: 1.4rem;
            }
            .char-grid {
                grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
            }
            .rating-area,
            .comment-area {
                padding: 1.2rem 1.2rem;
            }
            .star-group {
                font-size: 1.5rem;
            }
            .data-table {
                font-size: 0.8rem;
            }
            .data-table th,
            .data-table td {
                padding: 0.4rem 0.6rem;
            }
        }
        @media (max-width: 420px) {
            .char-grid {
                grid-template-columns: 1fr 1fr;
                gap: 0.8rem;
            }
        }
        .text-highlight {
            font-weight: 700;
            color: #0f3b5e;
        }
        .emoji-big {
            font-size: 1.3rem;
        }
        .inline-link {
            font-weight: 600;
        }
        .last-updated {
            font-size: 0.85rem;
            color: #6a7a8a;
            background: #f0f3f7;
            padding: 0.2rem 1rem;
            border-radius: 40px;
            display: inline-block;
        }
        .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem 0.8rem;
            margin: 0.8rem 0;
        }
        .tag-list span {
            background: #e9edf2;
            padding: 0.1rem 0.8rem;
            border-radius: 40px;
            font-size: 0.75rem;
            color: #1a3a4a;
        }
        .btn-outline {
            background: transparent;
            border: 2px solid #0f3b5e;
            color: #0f3b5e;
            padding: 0.5rem 1.4rem;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
        }
        .btn-outline:hover {
            background: #0f3b5e;
            color: #fff;
        }
        .flex-between {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 0.8rem;
        }