*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
            background: #f4f7fc;
            color: #1a2634;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        a {
            color: #c0392b;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #e74c3c;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.5rem;
            margin: 0.75rem 0;
        }
        li {
            margin-bottom: 0.4rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.25;
            font-weight: 700;
            color: #0b1a2a;
            margin-top: 1.8rem;
            margin-bottom: 0.75rem;
        }
        h1 {
            font-size: 2.2rem;
            border-left: 6px solid #c0392b;
            padding-left: 1rem;
        }
        h2 {
            font-size: 1.7rem;
            border-bottom: 2px solid #e0e7ef;
            padding-bottom: 0.4rem;
        }
        h3 {
            font-size: 1.35rem;
            color: #1e3a5f;
        }
        h4 {
            font-size: 1.1rem;
            color: #2c4a6e;
        }
        p {
            margin-bottom: 1rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.2rem;
        }
        .site-header {
            background: linear-gradient(135deg, #0b1a2a 0%, #1a2d44 100%);
            color: #fff;
            padding: 0.8rem 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;
            gap: 0.8rem;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            background: linear-gradient(135deg, #f7b731, #f39c12);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
            text-shadow: 0 2px 10px rgba(243, 156, 18, 0.2);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .my-logo i {
            -webkit-text-fill-color: #f7b731;
            font-size: 1.6rem;
        }
        .my-logo small {
            font-size: 0.7rem;
            -webkit-text-fill-color: #aab8c9;
            font-weight: 400;
            letter-spacing: 0.5px;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 0.2rem;
            flex-wrap: wrap;
        }
        .main-nav a {
            color: #dce3ed;
            padding: 0.5rem 0.9rem;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 500;
            transition: all 0.2s;
            white-space: nowrap;
        }
        .main-nav a:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #f7b731;
            text-decoration: none;
        }
        .main-nav a.active {
            background: #c0392b;
            color: #fff;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.7rem;
            cursor: pointer;
            padding: 0.2rem 0.6rem;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .nav-toggle {
            display: none;
        }
        .breadcrumb {
            background: #e9eef3;
            padding: 0.6rem 1.2rem;
            border-radius: 30px;
            font-size: 0.8rem;
            margin: 1.2rem 0 0.8rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.3rem 0.6rem;
        }
        .breadcrumb a {
            color: #2c4a6e;
        }
        .breadcrumb span {
            color: #7f8c9b;
        }
        .breadcrumb .current {
            color: #c0392b;
            font-weight: 600;
        }
        .search-section {
            background: #fff;
            padding: 1.2rem 1.5rem;
            border-radius: 16px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
            margin: 1.5rem 0;
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            align-items: center;
        }
        .search-section form {
            display: flex;
            flex: 1 1 300px;
            gap: 0.5rem;
        }
        .search-section input[type="text"] {
            flex: 1;
            padding: 0.75rem 1.2rem;
            border: 2px solid #dce3ed;
            border-radius: 30px;
            font-size: 0.95rem;
            outline: none;
            transition: border 0.2s;
        }
        .search-section input[type="text"]:focus {
            border-color: #c0392b;
        }
        .search-section button {
            background: #c0392b;
            color: #fff;
            border: none;
            padding: 0.75rem 1.5rem;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .search-section button:hover {
            background: #a93226;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2rem;
            margin: 2rem 0;
        }
        .main-content {
            background: #fff;
            padding: 2rem 2.2rem;
            border-radius: 20px;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
        }
        .sidebar {
            background: #fff;
            padding: 1.8rem 1.5rem;
            border-radius: 20px;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
            align-self: start;
            position: sticky;
            top: 100px;
        }
        .sidebar h3 {
            font-size: 1.2rem;
            margin-top: 0;
            border-bottom: 2px solid #e9eef3;
            padding-bottom: 0.6rem;
        }
        .sidebar ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .sidebar li {
            padding: 0.5rem 0;
            border-bottom: 1px solid #f0f3f7;
        }
        .sidebar li a {
            color: #1a2634;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.9rem;
        }
        .sidebar li a:hover {
            color: #c0392b;
            text-decoration: none;
        }
        .featured-img {
            margin: 1.5rem 0;
            border-radius: 14px;
            overflow: hidden;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
        }
        .featured-img img {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
        }
        .img-caption {
            font-size: 0.8rem;
            color: #6b7a8a;
            text-align: center;
            padding: 0.5rem;
            background: #f8fafc;
        }
        .interaction-area {
            background: #fff;
            padding: 2rem 2.2rem;
            border-radius: 20px;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
            margin: 2rem 0;
        }
        .interaction-area h2 {
            margin-top: 0;
        }
        .comment-form,
        .score-form {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin: 1.2rem 0;
        }
        .comment-form input,
        .comment-form textarea,
        .score-form select,
        .score-form button {
            padding: 0.7rem 1rem;
            border: 2px solid #dce3ed;
            border-radius: 12px;
            font-size: 0.95rem;
            outline: none;
            transition: border 0.2s;
            font-family: inherit;
        }
        .comment-form input:focus,
        .comment-form textarea:focus,
        .score-form select:focus {
            border-color: #c0392b;
        }
        .comment-form input {
            flex: 1 1 200px;
        }
        .comment-form textarea {
            flex: 1 1 100%;
            min-height: 90px;
            resize: vertical;
        }
        .comment-form button,
        .score-form button {
            background: #c0392b;
            color: #fff;
            border: none;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
            padding: 0.7rem 2rem;
            border-radius: 30px;
        }
        .comment-form button:hover,
        .score-form button:hover {
            background: #a93226;
        }
        .score-form {
            align-items: center;
        }
        .score-form select {
            min-width: 120px;
        }
        .rating-stars {
            display: flex;
            gap: 0.2rem;
            font-size: 1.6rem;
            color: #f1c40f;
        }
        .site-footer {
            background: #0b1a2a;
            color: #bcc9d9;
            padding: 2.5rem 0 1.5rem;
            margin-top: 3rem;
            border-radius: 40px 40px 0 0;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2rem;
        }
        .footer-inner h4 {
            color: #f7b731;
            margin-top: 0;
            font-size: 1.1rem;
        }
        .footer-inner a {
            color: #bcc9d9;
        }
        .footer-inner a:hover {
            color: #f7b731;
        }
        friend-link {
            display: block;
            padding: 1.2rem 0 0.5rem;
            border-top: 1px solid #1f3348;
            margin-top: 1.5rem;
            font-size: 0.9rem;
        }
        friend-link a {
            display: inline-block;
            margin: 0.3rem 1rem 0.3rem 0;
        }
        .copyright {
            text-align: center;
            padding-top: 1.2rem;
            font-size: 0.8rem;
            color: #7f8fa3;
            border-top: 1px solid #1f3348;
            margin-top: 1.2rem;
        }
        @media (max-width: 900px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                order: 2;
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 720px) {
            .hamburger {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                padding-top: 0.8rem;
                gap: 0.3rem;
            }
            .main-nav a {
                padding: 0.7rem 1rem;
                border-radius: 10px;
                white-space: normal;
            }
            .nav-toggle:checked~.main-nav {
                display: flex;
            }
            .header-inner {
                flex-wrap: wrap;
            }
            .my-logo {
                font-size: 1.3rem;
            }
            h1 {
                font-size: 1.6rem;
            }
            h2 {
                font-size: 1.3rem;
            }
            .main-content,
            .interaction-area {
                padding: 1.2rem;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 1.2rem;
            }
            .search-section form {
                flex-direction: column;
            }
            .breadcrumb {
                font-size: 0.7rem;
                padding: 0.5rem 1rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 0.8rem;
            }
            .my-logo {
                font-size: 1.1rem;
            }
            .my-logo small {
                display: none;
            }
            .rating-stars {
                font-size: 1.3rem;
            }
        }
        .badge {
            display: inline-block;
            background: #c0392b;
            color: #fff;
            font-size: 0.7rem;
            padding: 0.2rem 0.7rem;
            border-radius: 30px;
            font-weight: 600;
            letter-spacing: 0.3px;
        }
        .highlight-box {
            background: #fef9e7;
            border-left: 5px solid #f7b731;
            padding: 1rem 1.5rem;
            border-radius: 0 12px 12px 0;
            margin: 1.2rem 0;
        }
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 1rem;
            margin: 1.2rem 0;
        }
        .stat-card {
            background: #f8fafc;
            padding: 1rem;
            border-radius: 12px;
            text-align: center;
            border: 1px solid #e9eef3;
        }
        .stat-card .num {
            font-size: 1.8rem;
            font-weight: 800;
            color: #c0392b;
        }
        .stat-card .label {
            font-size: 0.8rem;
            color: #6b7a8a;
        }
        .pro-tip {
            background: #eaf7ea;
            border-left: 5px solid #27ae60;
            padding: 0.8rem 1.2rem;
            border-radius: 0 12px 12px 0;
            margin: 1rem 0;
            font-size: 0.9rem;
        }
        .pro-tip i {
            color: #27ae60;
            margin-right: 0.5rem;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.2rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.9rem;
        }
        th,
        td {
            padding: 0.7rem 1rem;
            border: 1px solid #dce3ed;
            text-align: left;
        }
        th {
            background: #e9eef3;
            font-weight: 700;
        }
        tr:nth-child(even) {
            background: #f8fafc;
        }
        :target {
            scroll-margin-top: 80px;
        }