*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        :root {
            --spider-red: #e23636;
            --spider-blue: #1c3a6e;
            --spider-dark: #0d1b2a;
            --spider-gold: #f5c518;
            --spider-light: #f0f4f8;
            --spider-gray: #4a4a4a;
            --spider-bg: #fafafa;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.12);
            --radius: 12px;
            --max-width: 1200px;
            --font-sans: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', sans-serif;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            background: var(--spider-bg);
            color: #1a1a2e;
            line-height: 1.7;
            font-size: 1.0625rem;
            padding: 0;
            margin: 0;
        }
        a {
            color: var(--spider-red);
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover,
        a:focus-visible {
            color: #b71c1c;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }
        .site-header {
            background: linear-gradient(135deg, var(--spider-dark) 0%, var(--spider-blue) 100%);
            color: #fff;
            padding: 0 1.25rem;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
        }
        .header-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding: 0.75rem 0;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, var(--spider-red), var(--spider-gold));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: none;
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }
        .my-logo:hover {
            opacity: 0.9;
            text-decoration: none;
        }
        .my-logo .logo-icon {
            font-size: 1.8rem;
            -webkit-text-fill-color: initial;
            color: var(--spider-red);
        }
        .my-logo .logo-sub {
            font-size: 0.7rem;
            font-weight: 400;
            -webkit-text-fill-color: initial;
            color: rgba(255, 255, 255, 0.7);
            letter-spacing: 1px;
            display: none;
        }
        @media (min-width: 480px) {
            .my-logo .logo-sub {
                display: inline;
            }
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.25rem 0.5rem;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .primary-nav {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            flex-wrap: wrap;
        }
        .primary-nav a {
            color: #e0e0e0;
            padding: 0.5rem 0.9rem;
            border-radius: 8px;
            font-size: 0.95rem;
            font-weight: 500;
            transition: background 0.2s, color 0.2s;
            white-space: nowrap;
        }
        .primary-nav a:hover,
        .primary-nav a:focus-visible {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
            text-decoration: none;
        }
        .primary-nav a.active {
            background: var(--spider-red);
            color: #fff;
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .primary-nav {
                display: none;
                flex-basis: 100%;
                flex-direction: column;
                align-items: stretch;
                padding: 0.75rem 0 1rem;
                gap: 0.15rem;
            }
            .primary-nav.open {
                display: flex;
            }
            .primary-nav a {
                padding: 0.7rem 1rem;
                border-radius: 6px;
            }
        }
        .breadcrumb-wrap {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0.75rem 1.25rem;
            font-size: 0.85rem;
            color: #666;
            background: #fff;
            border-bottom: 1px solid #e9ecef;
        }
        .breadcrumb-wrap a {
            color: var(--spider-blue);
        }
        .breadcrumb-wrap a:hover {
            color: var(--spider-red);
        }
        .breadcrumb-wrap span {
            color: #999;
        }
        .breadcrumb-current {
            font-weight: 600;
            color: var(--spider-dark);
        }
        .main-wrap {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 1.5rem 1.25rem 3rem;
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
        }
        @media (min-width: 992px) {
            .main-wrap {
                grid-template-columns: 1fr 300px;
            }
        }
        .content-area {
            background: #fff;
            border-radius: var(--radius);
            padding: 2rem 1.5rem;
            box-shadow: var(--shadow-sm);
        }
        @media (min-width: 768px) {
            .content-area {
                padding: 2.5rem 2.5rem;
            }
        }
        .sidebar-area {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }
        .sidebar-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 1.5rem;
            box-shadow: var(--shadow-sm);
        }
        .sidebar-card h4 {
            font-size: 1.1rem;
            color: var(--spider-dark);
            margin-bottom: 0.75rem;
            border-left: 4px solid var(--spider-red);
            padding-left: 0.75rem;
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
        }
        .sidebar-card li {
            margin-bottom: 0.5rem;
        }
        .sidebar-card li a {
            font-size: 0.95rem;
            display: block;
            padding: 0.35rem 0;
            border-bottom: 1px solid #f0f0f0;
        }
        .sidebar-card li a:hover {
            padding-left: 4px;
        }
        h1 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--spider-dark);
            line-height: 1.2;
            margin-bottom: 0.5rem;
        }
        h1 em {
            color: var(--spider-red);
            font-style: normal;
        }
        h2 {
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--spider-blue);
            margin-top: 2.5rem;
            margin-bottom: 1rem;
            line-height: 1.3;
            border-bottom: 3px solid var(--spider-gold);
            padding-bottom: 0.3rem;
        }
        h3 {
            font-size: 1.35rem;
            font-weight: 600;
            color: #1a1a2e;
            margin-top: 1.8rem;
            margin-bottom: 0.6rem;
            line-height: 1.3;
        }
        h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--spider-gray);
            margin-top: 1.2rem;
            margin-bottom: 0.4rem;
            line-height: 1.3;
        }
        p {
            margin-bottom: 1.1rem;
            font-size: 1.0625rem;
        }
        .meta-info {
            font-size: 0.9rem;
            color: #777;
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin-bottom: 1.5rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid #eee;
        }
        .meta-info strong {
            color: #444;
        }
        .last-updated {
            font-weight: 600;
            color: var(--spider-red);
        }
        .highlight-box {
            background: #fef9e7;
            border-left: 5px solid var(--spider-gold);
            padding: 1.2rem 1.5rem;
            border-radius: 0 8px 8px 0;
            margin: 1.5rem 0;
        }
        .highlight-box p {
            margin-bottom: 0.25rem;
        }
        .feature-img {
            margin: 1.5rem 0;
            border-radius: var(--radius);
            box-shadow: var(--shadow-md);
        }
        .btn {
            display: inline-block;
            background: var(--spider-red);
            color: #fff;
            padding: 0.55rem 1.4rem;
            border-radius: 8px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: background 0.2s, transform 0.1s;
            border: none;
            cursor: pointer;
        }
        .btn:hover {
            background: #b71c1c;
            color: #fff;
            text-decoration: none;
            transform: translateY(-1px);
        }
        .btn-outline {
            background: transparent;
            border: 2px solid var(--spider-red);
            color: var(--spider-red);
        }
        .btn-outline:hover {
            background: var(--spider-red);
            color: #fff;
        }
        .search-form {
            display: flex;
            gap: 0.5rem;
            margin: 1.2rem 0 2rem;
            flex-wrap: wrap;
        }
        .search-form input[type="text"] {
            flex: 1;
            min-width: 180px;
            padding: 0.65rem 1rem;
            border: 2px solid #ddd;
            border-radius: 8px;
            font-size: 1rem;
            transition: border-color 0.2s;
        }
        .search-form input[type="text"]:focus {
            outline: none;
            border-color: var(--spider-red);
        }
        .search-form button {
            padding: 0.65rem 1.4rem;
            background: var(--spider-blue);
            color: #fff;
            border: none;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
        }
        .search-form button:hover {
            background: #11294f;
        }
        .user-feedback {
            margin-top: 2.5rem;
            padding-top: 2rem;
            border-top: 2px dashed #ddd;
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.5rem;
            margin-top: 1rem;
        }
        @media (min-width: 600px) {
            .feedback-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        .comment-form textarea,
        .comment-form input[type="text"] {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 2px solid #e0e0e0;
            border-radius: 8px;
            font-family: var(--font-sans);
            font-size: 0.95rem;
            transition: border-color 0.2s;
            margin-bottom: 0.75rem;
        }
        .comment-form textarea:focus,
        .comment-form input[type="text"]:focus {
            outline: none;
            border-color: var(--spider-red);
        }
        .comment-form textarea {
            min-height: 100px;
            resize: vertical;
        }
        .rating-stars {
            display: flex;
            gap: 0.3rem;
            font-size: 1.8rem;
            cursor: pointer;
            margin: 0.5rem 0 0.75rem;
            color: #ccc;
            transition: color 0.15s;
        }
        .rating-stars .star:hover,
        .rating-stars .star.active {
            color: var(--spider-gold);
        }
        .rating-stars .star {
            transition: transform 0.1s;
        }
        .rating-stars .star:hover {
            transform: scale(1.2);
        }
        .site-footer {
            background: var(--spider-dark);
            color: #ccc;
            padding: 2.5rem 1.25rem 1.5rem;
            margin-top: 2rem;
        }
        .footer-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
        }
        @media (min-width: 768px) {
            .footer-inner {
                grid-template-columns: 2fr 1fr;
            }
        }
        .footer-inner h4 {
            color: #fff;
            margin-bottom: 0.75rem;
            font-size: 1.1rem;
        }
        .footer-links {
            list-style: none;
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 0.4rem;
        }
        .footer-links a {
            color: #aaa;
            font-size: 0.9rem;
        }
        .footer-links a:hover {
            color: var(--spider-gold);
        }
        friend-link {
            display: block;
            background: rgba(255, 255, 255, 0.05);
            padding: 1rem 1.25rem;
            border-radius: 8px;
            margin: 0.5rem 0 1rem;
            font-size: 0.9rem;
            border-left: 3px solid var(--spider-gold);
        }
        friend-link a {
            color: var(--spider-gold);
            margin: 0 0.25rem;
        }
        friend-link a:hover {
            color: #fff;
        }
        .copyright {
            text-align: center;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 1.5rem;
            margin-top: 2rem;
            font-size: 0.85rem;
            color: #888;
        }
        .copyright strong {
            color: #bbb;
        }
        @media (max-width: 480px) {
            h1 {
                font-size: 1.6rem;
            }
            h2 {
                font-size: 1.3rem;
            }
            h3 {
                font-size: 1.1rem;
            }
            .content-area {
                padding: 1.25rem 1rem;
            }
            .my-logo {
                font-size: 1.3rem;
            }
        }
        .fade-in {
            animation: fadeIn 0.6s ease forwards;
        }
        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(12px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        @media print {
            .site-header,
            .breadcrumb-wrap,
            .search-form,
            .user-feedback,
            .sidebar-area,
            .nav-toggle,
            .site-footer {
                display: none !important;
            }
            .main-wrap {
                display: block;
            }
            .content-area {
                box-shadow: none;
                padding: 0;
            }
            body {
                font-size: 12pt;
            }
        }