*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Helvetica Neue', sans-serif;
            background: #f5f7fb;
            color: #1e2a3a;
            line-height: 1.7;
            padding: 0 16px;
        }
        a {
            color: #2563eb;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #1d4ed8;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul,
        ol {
            padding-left: 1.5rem;
            margin: 1rem 0;
        }
        li {
            margin-bottom: 0.4rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: #0f172a;
            margin-top: 1.8rem;
            margin-bottom: 0.8rem;
        }
        h1 {
            font-size: 2.2rem;
            margin-top: 0;
        }
        h2 {
            font-size: 1.7rem;
            border-bottom: 3px solid #2563eb;
            padding-bottom: 0.3rem;
        }
        h3 {
            font-size: 1.35rem;
            color: #1e293b;
        }
        h4 {
            font-size: 1.1rem;
            color: #334155;
        }
        p {
            margin-bottom: 1.2rem;
        }
        strong {
            color: #0f172a;
        }
        .container {
            max-width: 1120px;
            margin: 0 auto;
            background: #ffffff;
            border-radius: 20px;
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.06);
            padding: 20px 28px 40px;
            margin-top: 20px;
            margin-bottom: 40px;
        }
        .site-header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0 16px;
            border-bottom: 2px solid #e9edf4;
            position: relative;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            background: linear-gradient(135deg, #2563eb, #7c3aed);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
            display: inline-block;
        }
        .my-logo:hover {
            text-decoration: none;
            opacity: 0.85;
        }
        .my-logo small {
            font-size: 0.8rem;
            font-weight: 400;
            -webkit-text-fill-color: #64748b;
            color: #64748b;
            background: none;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: #1e293b;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: #f1f5f9;
        }
        .main-nav {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            align-items: center;
        }
        .main-nav a {
            padding: 8px 16px;
            border-radius: 40px;
            font-weight: 500;
            font-size: 0.9rem;
            color: #1e293b;
            transition: background 0.2s, color 0.2s;
        }
        .main-nav a:hover {
            background: #2563eb;
            color: #fff;
            text-decoration: none;
        }
        .main-nav a i {
            margin-right: 6px;
            font-size: 0.85rem;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
            font-size: 0.85rem;
            color: #64748b;
            padding: 14px 0 8px;
            border-bottom: 1px solid #edf2f7;
            margin-bottom: 24px;
            list-style: none;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
            margin: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 10px;
            color: #94a3b8;
            font-weight: 600;
        }
        .breadcrumb a {
            color: #2563eb;
        }
        .breadcrumb .active {
            color: #0f172a;
            font-weight: 600;
        }
        .search-section {
            background: #f8fafc;
            border-radius: 16px;
            padding: 20px 24px;
            margin: 28px 0 32px;
            border: 1px solid #e2e8f0;
        }
        .search-section form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .search-section input[type="text"] {
            flex: 1;
            min-width: 200px;
            padding: 14px 18px;
            border: 2px solid #e2e8f0;
            border-radius: 40px;
            font-size: 1rem;
            outline: none;
            transition: border-color 0.25s;
        }
        .search-section input[type="text"]:focus {
            border-color: #2563eb;
        }
        .search-section button {
            background: #2563eb;
            color: #fff;
            border: none;
            padding: 14px 32px;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .search-section button:hover {
            background: #1d4ed8;
            transform: scale(1.02);
        }
        .interaction-panel {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            margin: 32px 0 28px;
            background: #f1f5f9;
            border-radius: 16px;
            padding: 24px 28px;
            border: 1px solid #e2e8f0;
        }
        .rating-box,
        .comment-box {
            flex: 1;
            min-width: 220px;
        }
        .rating-box h4,
        .comment-box h4 {
            margin: 0 0 8px;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .star-group {
            display: flex;
            gap: 6px;
            font-size: 1.6rem;
            color: #fbbf24;
            cursor: pointer;
            margin-bottom: 10px;
        }
        .star-group i {
            transition: transform 0.15s, color 0.15s;
        }
        .star-group i:hover {
            transform: scale(1.25);
            color: #f59e0b;
        }
        .rating-box form,
        .comment-box form {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .rating-box form input[type="hidden"] {
            display: none;
        }
        .rating-box form button,
        .comment-box form button {
            align-self: flex-start;
            background: #1e293b;
            color: #fff;
            border: none;
            padding: 10px 28px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: background 0.25s;
        }
        .rating-box form button:hover,
        .comment-box form button:hover {
            background: #0f172a;
        }
        .comment-box textarea {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid #e2e8f0;
            border-radius: 12px;
            font-size: 0.95rem;
            font-family: inherit;
            resize: vertical;
            min-height: 70px;
            outline: none;
            transition: border-color 0.25s;
        }
        .comment-box textarea:focus {
            border-color: #2563eb;
        }
        .hero-img {
            border-radius: 20px;
            overflow: hidden;
            margin: 24px 0 32px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
        }
        .hero-img img {
            width: 100%;
            max-height: 480px;
            object-fit: cover;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 280px;
            gap: 40px;
            margin: 28px 0;
        }
        .content-main {
            min-width: 0;
        }
        .content-sidebar {
            border-left: 1px solid #e9edf4;
            padding-left: 32px;
        }
        .content-sidebar .sidebar-card {
            background: #f8fafc;
            border-radius: 14px;
            padding: 18px 20px;
            margin-bottom: 20px;
            border: 1px solid #e2e8f0;
        }
        .content-sidebar .sidebar-card h4 {
            margin-top: 0;
            font-size: 1.05rem;
            border-bottom: 2px solid #2563eb;
            padding-bottom: 6px;
            display: inline-block;
        }
        .content-sidebar .sidebar-card ul {
            padding-left: 0;
            list-style: none;
            margin: 12px 0 0;
        }
        .content-sidebar .sidebar-card ul li {
            padding: 6px 0;
            border-bottom: 1px dashed #e2e8f0;
        }
        .content-sidebar .sidebar-card ul li:last-child {
            border-bottom: none;
        }
        .content-sidebar .sidebar-card ul li a {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .content-sidebar .sidebar-card ul li a i {
            color: #2563eb;
            font-size: 0.8rem;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 24px 0;
            border-radius: 12px;
            border: 1px solid #e2e8f0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
        }
        table th,
        table td {
            padding: 12px 18px;
            text-align: left;
            border-bottom: 1px solid #edf2f7;
        }
        table th {
            background: #f1f5f9;
            font-weight: 700;
            color: #0f172a;
        }
        table tr:last-child td {
            border-bottom: none;
        }
        table tr:hover td {
            background: #f8fafc;
        }
        .info-box {
            background: #eff6ff;
            border-left: 5px solid #2563eb;
            padding: 18px 24px;
            border-radius: 0 12px 12px 0;
            margin: 24px 0;
        }
        .info-box strong {
            color: #1e40af;
        }
        .tip-box {
            background: #f0fdf4;
            border-left: 5px solid #16a34a;
            padding: 18px 24px;
            border-radius: 0 12px 12px 0;
            margin: 24px 0;
        }
        .tip-box strong {
            color: #15803d;
        }
        .warning-box {
            background: #fef9ef;
            border-left: 5px solid #f59e0b;
            padding: 18px 24px;
            border-radius: 0 12px 12px 0;
            margin: 24px 0;
        }
        .site-footer {
            margin-top: 48px;
            padding-top: 32px;
            border-top: 2px solid #e9edf4;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 28px;
            margin-bottom: 28px;
        }
        .footer-grid h5 {
            font-size: 1rem;
            margin: 0 0 12px;
            color: #0f172a;
        }
        .footer-grid ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-grid ul li {
            margin-bottom: 6px;
        }
        .footer-grid ul li a {
            font-size: 0.9rem;
            color: #475569;
        }
        .footer-grid ul li a:hover {
            color: #2563eb;
        }
        friend-link {
            display: block;
            background: #f1f5f9;
            border-radius: 14px;
            padding: 20px 24px;
            margin: 20px 0 16px;
            font-size: 0.95rem;
        }
        friend-link a {
            display: inline-block;
            margin: 4px 12px 4px 0;
            padding: 4px 12px;
            background: #ffffff;
            border-radius: 40px;
            border: 1px solid #e2e8f0;
            font-size: 0.88rem;
            transition: background 0.2s, border-color 0.2s;
        }
        friend-link a:hover {
            background: #2563eb;
            color: #fff;
            border-color: #2563eb;
            text-decoration: none;
        }
        .copyright {
            text-align: center;
            padding: 18px 0 4px;
            font-size: 0.85rem;
            color: #64748b;
            border-top: 1px solid #edf2f7;
        }
        .copyright strong {
            color: #1e293b;
        }
        .last-updated {
            display: inline-block;
            background: #f1f5f9;
            padding: 4px 16px;
            border-radius: 40px;
            font-size: 0.8rem;
            color: #475569;
            margin-bottom: 16px;
        }
        @media (max-width: 820px) {
            .container {
                padding: 16px 16px 32px;
                border-radius: 14px;
            }
            h1 {
                font-size: 1.7rem;
            }
            h2 {
                font-size: 1.35rem;
            }
            h3 {
                font-size: 1.15rem;
            }
            .content-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .content-sidebar {
                border-left: none;
                padding-left: 0;
                border-top: 1px solid #e9edf4;
                padding-top: 24px;
            }
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 4px;
                padding: 12px 0 8px;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 10px 16px;
                border-radius: 8px;
                width: 100%;
            }
            .search-section form {
                flex-direction: column;
            }
            .search-section button {
                justify-content: center;
            }
            .interaction-panel {
                flex-direction: column;
                padding: 18px 16px;
            }
            .my-logo {
                font-size: 1.5rem;
            }
            table th,
            table td {
                padding: 8px 12px;
                font-size: 0.85rem;
            }
        }
        @media (max-width: 480px) {
            body {
                padding: 0 8px;
            }
            .container {
                padding: 12px 12px 24px;
                margin-top: 10px;
            }
            h1 {
                font-size: 1.4rem;
            }
            h2 {
                font-size: 1.15rem;
            }
            .breadcrumb {
                font-size: 0.75rem;
                gap: 4px 8px;
            }
            .star-group {
                font-size: 1.3rem;
            }
            .hero-img {
                border-radius: 12px;
            }
        }
        :target {
            scroll-margin-top: 20px;
        }