*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: #f5f7fa;
            color: #1a2634;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        a {
            color: #d32f2f;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #b71c1c;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.5rem;
            margin-bottom: 1.2rem;
        }
        li {
            margin-bottom: 0.5rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            margin-top: 2rem;
            margin-bottom: 1rem;
            color: #0d1b2a;
        }
        h1 {
            font-size: 2.4rem;
            border-left: 6px solid #d32f2f;
            padding-left: 1.2rem;
        }
        h2 {
            font-size: 1.9rem;
            border-bottom: 2px solid #e0e4e8;
            padding-bottom: 0.4rem;
        }
        h3 {
            font-size: 1.5rem;
            color: #1e3a5f;
        }
        h4 {
            font-size: 1.2rem;
            color: #2c4a6e;
        }
        p {
            margin-bottom: 1.4rem;
            font-size: 1.05rem;
        }
        strong,
        b {
            color: #b71c1c;
        }
        blockquote {
            border-left: 5px solid #d32f2f;
            background: #f0f2f5;
            padding: 1rem 1.8rem;
            margin: 1.8rem 0;
            border-radius: 0 12px 12px 0;
            font-style: italic;
            color: #2c3e50;
        }
        hr {
            border: none;
            border-top: 2px dashed #d0d4da;
            margin: 2.5rem 0;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(145deg, #0d1b2a 0%, #1b2838 100%);
            color: #fff;
            padding: 1.2rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: #fff;
            background: linear-gradient(135deg, #d32f2f, #ff6f00);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            transition: transform 0.2s;
            display: inline-block;
        }
        .my-logo:hover {
            transform: scale(1.02);
            text-decoration: none;
        }
        .my-logo i {
            -webkit-text-fill-color: initial;
            color: #ff6f00;
            margin-right: 6px;
        }
        nav {
            display: flex;
            align-items: center;
            gap: 0.8rem;
            flex-wrap: wrap;
        }
        nav a {
            color: #e0e6ed;
            padding: 0.5rem 0.9rem;
            border-radius: 30px;
            font-size: 0.92rem;
            font-weight: 500;
            transition: all 0.25s;
            white-space: nowrap;
        }
        nav a:hover {
            background: rgba(211, 47, 47, 0.25);
            color: #fff;
            text-decoration: none;
            transform: translateY(-1px);
        }
        nav a.active {
            background: #d32f2f;
            color: #fff;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: #fff;
            cursor: pointer;
            padding: 0 10px;
            transition: transform 0.2s;
        }
        .hamburger:hover {
            transform: scale(1.1);
        }
        .breadcrumb {
            background: #eef1f5;
            padding: 0.8rem 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #dce1e8;
        }
        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            padding: 0;
            margin: 0;
            gap: 0.4rem 0.8rem;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.6rem;
            color: #888;
            font-size: 1.2rem;
        }
        .breadcrumb a {
            color: #d32f2f;
        }
        .breadcrumb span {
            color: #555;
        }
        .search-section {
            background: #fff;
            padding: 1.5rem 0;
            border-bottom: 1px solid #e0e4e8;
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 0 auto;
            border-radius: 50px;
            overflow: hidden;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
        }
        .search-form input {
            flex: 1;
            padding: 0.9rem 1.5rem;
            border: 1px solid #d0d4da;
            border-right: none;
            border-radius: 50px 0 0 50px;
            font-size: 1rem;
            outline: none;
            transition: border 0.2s;
        }
        .search-form input:focus {
            border-color: #d32f2f;
        }
        .search-form button {
            background: #d32f2f;
            color: #fff;
            border: none;
            padding: 0 2rem;
            border-radius: 0 50px 50px 0;
            font-size: 1.1rem;
            cursor: pointer;
            transition: background 0.2s;
        }
        .search-form button:hover {
            background: #b71c1c;
        }
        main {
            padding: 2.5rem 0 3rem;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
        }
        .content-body {
            background: #fff;
            padding: 2.2rem 2.5rem;
            border-radius: 18px;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
        }
        .content-body img {
            margin: 2rem 0;
            width: 100%;
            border-radius: 14px;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
        }
        .sidebar {
            background: #fff;
            padding: 1.8rem 1.8rem;
            border-radius: 18px;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
            height: fit-content;
            position: sticky;
            top: 100px;
        }
        .sidebar h3 {
            margin-top: 0;
            font-size: 1.3rem;
            border-bottom: 2px solid #eef1f5;
            padding-bottom: 0.6rem;
        }
        .sidebar ul {
            list-style: none;
            padding: 0;
        }
        .sidebar li {
            margin-bottom: 0.6rem;
        }
        .sidebar a {
            display: block;
            padding: 0.4rem 0.6rem;
            border-radius: 8px;
            transition: background 0.2s;
            font-size: 0.95rem;
        }
        .sidebar a:hover {
            background: #f0f2f5;
            text-decoration: none;
        }
        .rating-area {
            background: #f8fafc;
            border-radius: 16px;
            padding: 1.8rem 2rem;
            margin: 2rem 0 1.5rem;
            border: 1px solid #e8ecf0;
        }
        .rating-area h3 {
            margin-top: 0;
            font-size: 1.3rem;
        }
        .star-rating {
            display: flex;
            gap: 0.4rem;
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.15s;
            margin: 0.8rem 0;
        }
        .star-rating i {
            transition: transform 0.15s, color 0.15s;
        }
        .star-rating i:hover,
        .star-rating i.active {
            color: #f9a825;
            transform: scale(1.15);
        }
        .rating-area .score-btn {
            background: #d32f2f;
            color: #fff;
            border: none;
            padding: 0.6rem 2rem;
            border-radius: 30px;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.2s;
            margin-top: 0.6rem;
        }
        .rating-area .score-btn:hover {
            background: #b71c1c;
        }
        #rating-message {
            margin-top: 0.6rem;
            font-size: 0.95rem;
            color: #2e7d32;
        }
        .comment-section {
            background: #f8fafc;
            border-radius: 16px;
            padding: 1.8rem 2rem;
            margin: 2rem 0;
            border: 1px solid #e8ecf0;
        }
        .comment-section h3 {
            margin-top: 0;
            font-size: 1.3rem;
        }
        .comment-section textarea {
            width: 100%;
            padding: 1rem;
            border: 1px solid #d0d4da;
            border-radius: 12px;
            font-size: 1rem;
            font-family: inherit;
            resize: vertical;
            min-height: 100px;
            transition: border 0.2s;
        }
        .comment-section textarea:focus {
            border-color: #d32f2f;
            outline: none;
        }
        .comment-section input[type="text"] {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 1px solid #d0d4da;
            border-radius: 12px;
            font-size: 1rem;
            margin: 0.6rem 0 1rem;
            transition: border 0.2s;
        }
        .comment-section input[type="text"]:focus {
            border-color: #d32f2f;
            outline: none;
        }
        .comment-section .comment-btn {
            background: #d32f2f;
            color: #fff;
            border: none;
            padding: 0.7rem 2.5rem;
            border-radius: 30px;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.2s;
        }
        .comment-section .comment-btn:hover {
            background: #b71c1c;
        }
        #comment-message {
            margin-top: 0.6rem;
            font-size: 0.95rem;
            color: #2e7d32;
        }
        friend-link {
            display: block;
            background: #1b2838;
            color: #e0e6ed;
            padding: 2rem 0;
            margin-top: 2rem;
            border-radius: 18px 18px 0 0;
        }
        friend-link .container {
            display: flex;
            flex-wrap: wrap;
            gap: 1.2rem 2rem;
            justify-content: center;
        }
        friend-link a {
            color: #ffab91;
            font-weight: 500;
            transition: color 0.2s;
        }
        friend-link a:hover {
            color: #ff8a65;
            text-decoration: underline;
        }
        friend-link .fl-title {
            width: 100%;
            text-align: center;
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 0.6rem;
            color: #fff;
        }
        footer {
            background: #0d1b2a;
            color: #b0bec5;
            padding: 1.8rem 0;
            text-align: center;
            font-size: 0.9rem;
            border-top: 1px solid #1e3a5f;
        }
        footer .copyright {
            letter-spacing: 0.3px;
        }
        footer a {
            color: #ffab91;
        }
        @media (max-width: 820px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                margin-top: 2rem;
            }
            .content-body {
                padding: 1.5rem 1.2rem;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            h3 {
                font-size: 1.3rem;
            }
            .header-inner {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
            }
            nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                padding-top: 1rem;
                gap: 0.3rem;
            }
            nav.open {
                display: flex;
            }
            nav a {
                padding: 0.7rem 1rem;
                border-radius: 8px;
                text-align: center;
            }
            .breadcrumb ol {
                font-size: 0.8rem;
            }
            .rating-area,
            .comment-section {
                padding: 1.2rem 1rem;
            }
            .star-rating {
                font-size: 1.6rem;
            }
            .search-form {
                flex-direction: column;
                border-radius: 20px;
            }
            .search-form input {
                border-radius: 20px 20px 0 0;
                border-right: 1px solid #d0d4da;
            }
            .search-form button {
                border-radius: 0 0 20px 20px;
                padding: 0.8rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 12px;
            }
            .content-body {
                padding: 1rem 0.8rem;
            }
            h1 {
                font-size: 1.5rem;
                padding-left: 0.8rem;
            }
            h2 {
                font-size: 1.3rem;
            }
            h3 {
                font-size: 1.1rem;
            }
            p {
                font-size: 0.98rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
        }
        .update-badge {
            display: inline-block;
            background: #e8f5e9;
            color: #2e7d32;
            padding: 0.3rem 1.2rem;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 1rem;
        }
        .highlight-box {
            background: #fff8e1;
            border-left: 5px solid #f9a825;
            padding: 1.2rem 1.8rem;
            border-radius: 0 12px 12px 0;
            margin: 1.5rem 0;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.8rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.98rem;
            background: #fafbfc;
            border-radius: 12px;
            overflow: hidden;
        }
        table th,
        table td {
            padding: 0.8rem 1rem;
            border: 1px solid #e0e4e8;
            text-align: left;
        }
        table th {
            background: #0d1b2a;
            color: #fff;
            font-weight: 600;
        }
        table tr:nth-child(even) {
            background: #f2f4f7;
        }
        :target {
            scroll-margin-top: 80px;
        }