*,
        *::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, sans-serif;
            background: #f5f7fc;
            color: #1a1a2e;
            line-height: 1.7;
            padding: 0;
        }
        a {
            color: #e67e22;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover,
        a:focus-visible {
            color: #c0392b;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.5rem;
            margin: 1rem 0;
        }
        li {
            margin-bottom: 0.4rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.25;
            color: #0b0b1a;
            margin-top: 1.8rem;
            margin-bottom: 0.75rem;
        }
        h1 {
            font-size: 2.4rem;
            border-bottom: 4px solid #e67e22;
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 1.8rem;
            border-left: 6px solid #e67e22;
            padding-left: 1rem;
            margin-top: 2.8rem;
        }
        h3 {
            font-size: 1.35rem;
            color: #2c3e50;
        }
        h4 {
            font-size: 1.1rem;
            color: #34495e;
        }
        p {
            margin-bottom: 1.2rem;
            word-break: break-word;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.2rem;
        }
        .site-header {
            background: linear-gradient(145deg, #0b0b1a 0%, #1a1a2e 100%);
            color: #fff;
            padding: 0.8rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.5rem;
            font-weight: 800;
            background: linear-gradient(135deg, #f39c12, #e67e22);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
            text-transform: uppercase;
            text-decoration: none !important;
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none !important;
        }
        .my-logo small {
            font-size: 0.75rem;
            display: block;
            -webkit-text-fill-color: #aaa;
            color: #aaa;
            letter-spacing: 1px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid #e67e22;
            color: #e67e22;
            font-size: 1.6rem;
            padding: 0.3rem 0.8rem;
            border-radius: 8px;
            cursor: pointer;
            transition: 0.2s;
        }
        .nav-toggle:hover {
            background: #e67e22;
            color: #fff;
        }
        .nav-menu {
            display: flex;
            gap: 0.2rem;
            flex-wrap: wrap;
            align-items: center;
        }
        .nav-menu a {
            color: #ddd;
            padding: 0.4rem 0.9rem;
            border-radius: 30px;
            font-size: 0.88rem;
            font-weight: 500;
            transition: 0.2s;
            white-space: nowrap;
        }
        .nav-menu a:hover {
            background: rgba(230, 126, 34, 0.2);
            color: #f39c12;
            text-decoration: none;
        }
        .nav-menu a i {
            margin-right: 0.3rem;
        }
        .breadcrumb-wrap {
            background: #fff;
            border-bottom: 1px solid #e0e5ee;
            padding: 0.6rem 0;
            font-size: 0.85rem;
        }
        .breadcrumb-wrap nav ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            padding: 0;
            margin: 0;
        }
        .breadcrumb-wrap nav ol li {
            margin-bottom: 0;
        }
        .breadcrumb-wrap nav ol li+li::before {
            content: "›";
            padding: 0 0.6rem;
            color: #999;
        }
        .breadcrumb-wrap a {
            color: #2c3e50;
        }
        .breadcrumb-wrap .current {
            color: #e67e22;
            font-weight: 600;
        }
        .hero {
            background: linear-gradient(135deg, #0f0c29, #302b63, #24243e);
            color: #fff;
            padding: 3rem 0 2.5rem;
            text-align: center;
            border-radius: 0 0 40px 40px;
            margin-bottom: 2rem;
        }
        .hero h1 {
            color: #fff;
            border-bottom: none;
            font-size: 2.8rem;
            margin-top: 0;
        }
        .hero h1 span {
            background: linear-gradient(135deg, #f39c12, #e67e22);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero p {
            font-size: 1.15rem;
            max-width: 720px;
            margin: 1rem auto 0;
            opacity: 0.88;
        }
        .hero .badge {
            display: inline-block;
            background: #e67e22;
            color: #fff;
            padding: 0.25rem 1.2rem;
            border-radius: 50px;
            font-size: 0.8rem;
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-top: 1rem;
        }
        .hero .update-badge {
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(4px);
            padding: 0.4rem 1.5rem;
            border-radius: 60px;
            display: inline-block;
            margin-top: 1.2rem;
            font-size: 0.85rem;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }
        .hero .update-badge i {
            color: #f39c12;
            margin-right: 0.4rem;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            margin: 2rem 0;
        }
        .main-content {
            background: #fff;
            border-radius: 24px;
            padding: 2.2rem 2.5rem;
            box-shadow: 0 8px 40px rgba(0, 0, 0, 0.04);
        }
        .sidebar {
            background: #fff;
            border-radius: 24px;
            padding: 1.8rem 1.6rem;
            box-shadow: 0 8px 40px rgba(0, 0, 0, 0.04);
            align-self: start;
            position: sticky;
            top: 100px;
        }
        .sidebar h3 {
            font-size: 1.1rem;
            border-bottom: 2px solid #e67e22;
            padding-bottom: 0.4rem;
            margin-top: 0;
            margin-bottom: 1rem;
        }
        .sidebar ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .sidebar ul li {
            padding: 0.4rem 0;
            border-bottom: 1px solid #f0f2f7;
        }
        .sidebar ul li a {
            color: #2c3e50;
            font-size: 0.9rem;
        }
        .sidebar ul li a:hover {
            color: #e67e22;
        }
        .sidebar .link-highlight {
            background: #fef5e7;
            padding: 0.8rem 1rem;
            border-radius: 12px;
            margin-top: 1.2rem;
            font-size: 0.85rem;
        }
        .sidebar .link-highlight a {
            color: #e67e22;
            font-weight: 600;
        }
        .featured-image {
            margin: 2rem 0;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
        }
        .featured-image figcaption {
            background: #f8f9fc;
            padding: 0.6rem 1.2rem;
            font-size: 0.82rem;
            color: #555;
            text-align: center;
        }
        .featured-image img {
            width: 100%;
            max-height: 480px;
            object-fit: cover;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.8rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.92rem;
            background: #fafbff;
            border-radius: 12px;
            overflow: hidden;
        }
        th,
        td {
            padding: 0.75rem 1rem;
            text-align: left;
            border-bottom: 1px solid #e8ecf4;
        }
        th {
            background: #1a1a2e;
            color: #fff;
            font-weight: 600;
        }
        tr:last-child td {
            border-bottom: none;
        }
        tr:hover td {
            background: #fef9f0;
        }
        .interaction-area {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            margin: 2.5rem 0 1rem;
            padding-top: 1.5rem;
            border-top: 2px dashed #ddd;
        }
        .comment-box,
        .score-box {
            background: #f8f9fc;
            padding: 1.5rem;
            border-radius: 20px;
        }
        .comment-box h3,
        .score-box h3 {
            margin-top: 0;
            font-size: 1.2rem;
        }
        .comment-box form,
        .score-box form {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
        }
        .comment-box input,
        .comment-box textarea,
        .score-box input,
        .score-box select {
            padding: 0.7rem 1rem;
            border: 2px solid #e0e5ee;
            border-radius: 12px;
            font-size: 0.95rem;
            font-family: inherit;
            transition: 0.2s;
            background: #fff;
        }
        .comment-box input:focus,
        .comment-box textarea:focus,
        .score-box input:focus,
        .score-box select:focus {
            border-color: #e67e22;
            outline: none;
            box-shadow: 0 0 0 3px rgba(230, 126, 34, 0.15);
        }
        .comment-box textarea {
            min-height: 100px;
            resize: vertical;
        }
        .btn-primary {
            background: #e67e22;
            color: #fff;
            border: none;
            padding: 0.7rem 1.5rem;
            border-radius: 60px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: 0.2s;
            align-self: flex-start;
        }
        .btn-primary:hover {
            background: #c0392b;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(230, 126, 34, 0.35);
        }
        .btn-primary i {
            margin-right: 0.4rem;
        }
        .search-box {
            background: #fff;
            border-radius: 60px;
            display: flex;
            overflow: hidden;
            border: 2px solid #e0e5ee;
            transition: 0.2s;
            max-width: 480px;
            margin: 1.5rem 0;
        }
        .search-box:focus-within {
            border-color: #e67e22;
            box-shadow: 0 0 0 4px rgba(230, 126, 34, 0.12);
        }
        .search-box input {
            flex: 1;
            border: none;
            padding: 0.7rem 1.2rem;
            font-size: 1rem;
            outline: none;
            background: transparent;
        }
        .search-box button {
            background: #e67e22;
            color: #fff;
            border: none;
            padding: 0.7rem 1.5rem;
            cursor: pointer;
            font-size: 1rem;
            transition: 0.2s;
        }
        .search-box button:hover {
            background: #c0392b;
        }
        friend-link {
            display: block;
            background: #1a1a2e;
            color: #ddd;
            padding: 1.5rem 0;
            margin-top: 2.5rem;
            border-radius: 24px 24px 0 0;
        }
        friend-link .container {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem 2rem;
            justify-content: center;
        }
        friend-link a {
            color: #f39c12;
            font-size: 0.9rem;
            padding: 0.2rem 0.6rem;
            border-radius: 30px;
            transition: 0.2s;
        }
        friend-link a:hover {
            background: rgba(243, 156, 18, 0.15);
            color: #fff;
            text-decoration: none;
        }
        friend-link .label {
            color: #888;
            font-size: 0.8rem;
            letter-spacing: 1px;
            text-transform: uppercase;
            width: 100%;
            text-align: center;
            margin-bottom: 0.4rem;
        }
        .site-footer {
            background: #0b0b1a;
            color: #aaa;
            padding: 1.8rem 0;
            text-align: center;
            font-size: 0.85rem;
        }
        .site-footer .copyright {
            border-top: 1px solid #2a2a4a;
            padding-top: 1.2rem;
            margin-top: 1.2rem;
        }
        .site-footer a {
            color: #f39c12;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                order: 2;
            }
            .main-content {
                order: 1;
            }
            .hero h1 {
                font-size: 2rem;
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                width: 100%;
                flex-direction: column;
                padding-top: 1rem;
                gap: 0.3rem;
            }
            .nav-menu.show {
                display: flex;
            }
            .nav-menu a {
                width: 100%;
                text-align: center;
                padding: 0.6rem;
                border-radius: 8px;
            }
            .header-inner {
                align-items: center;
            }
            .my-logo {
                font-size: 1.2rem;
            }
            .main-content {
                padding: 1.5rem 1.2rem;
            }
            .interaction-area {
                grid-template-columns: 1fr;
            }
            .hero h1 {
                font-size: 1.6rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            .breadcrumb-wrap {
                font-size: 0.75rem;
            }
            .search-box {
                max-width: 100%;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 0.8rem;
            }
            .hero {
                padding: 2rem 0 1.5rem;
            }
            .hero h1 {
                font-size: 1.3rem;
            }
            .main-content {
                padding: 1rem 0.8rem;
                border-radius: 16px;
            }
            table {
                font-size: 0.78rem;
            }
            th,
            td {
                padding: 0.5rem 0.6rem;
            }
        }
        .highlight-box {
            background: #fef9f0;
            border-left: 5px solid #e67e22;
            padding: 1.2rem 1.5rem;
            border-radius: 0 16px 16px 0;
            margin: 1.8rem 0;
        }
        .highlight-box strong {
            color: #c0392b;
        }
        .emoji-big {
            font-size: 1.4rem;
            display: inline-block;
            margin-right: 0.3rem;
        }
        .inline-icon {
            color: #e67e22;
            margin-right: 0.3rem;
        }
        .stat-number {
            font-weight: 700;
            color: #e67e22;
            font-size: 1.1rem;
        }
        .tip-card {
            background: #eaf7ee;
            border-radius: 16px;
            padding: 1rem 1.4rem;
            margin: 1.2rem 0;
            border: 1px solid #c8e6d9;
        }
        .tip-card i {
            color: #27ae60;
            margin-right: 0.5rem;
        }
        .pro-tip {
            background: #eaf0ff;
            border-radius: 16px;
            padding: 1rem 1.4rem;
            margin: 1.2rem 0;
            border: 1px solid #ccd9ff;
        }
        .pro-tip i {
            color: #2c3e80;
            margin-right: 0.5rem;
        }
        .glossary-term {
            font-weight: 600;
            color: #8e44ad;
        }