*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        :root {
            --primary: #c8102e;
            --primary-dark: #a00d24;
            --secondary: #1a1a2e;
            --accent: #e6b800;
            --bg: #f4f6f9;
            --card-bg: #ffffff;
            --text: #222;
            --text-light: #555;
            --border: #ddd;
            --radius: 12px;
            --shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
            --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.15);
            --font: 'Segoe UI', Roboto, -apple-system, BlinkMacSystemFont, sans-serif;
            --max-width: 1200px;
            --header-h: 70px;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.8;
            padding-top: var(--header-h);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.25s;
        }
        a:hover {
            color: var(--primary-dark);
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--header-h);
            background: var(--secondary);
            color: #fff;
            z-index: 1000;
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
            display: flex;
            align-items: center;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            flex-wrap: nowrap;
        }
        .my-logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
            text-decoration: none;
            white-space: nowrap;
        }
        .my-logo:hover {
            color: var(--accent);
            text-decoration: none;
        }
        .my-logo i {
            color: var(--accent);
            font-size: 1.8rem;
        }
        .my-logo span {
            color: var(--accent);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.6rem;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
            flex-wrap: wrap;
        }
        .nav-menu li a {
            color: #eee;
            padding: 8px 14px;
            border-radius: 6px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: background 0.25s, color 0.25s;
            white-space: nowrap;
        }
        .nav-menu li a:hover {
            background: rgba(255, 255, 255, 0.12);
            color: var(--accent);
            text-decoration: none;
        }
        .nav-menu li a i {
            margin-right: 6px;
            font-size: 0.85rem;
        }
        .breadcrumb-wrap {
            background: var(--card-bg);
            border-bottom: 1px solid var(--border);
            padding: 12px 0;
            font-size: 0.85rem;
        }
        .breadcrumb-wrap .container {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
        }
        .breadcrumb-wrap a {
            color: var(--text-light);
        }
        .breadcrumb-wrap a:hover {
            color: var(--primary);
        }
        .breadcrumb-wrap span {
            color: var(--text-light);
        }
        .breadcrumb-wrap .sep {
            color: #aaa;
            margin: 0 4px;
        }
        .main-content {
            flex: 1;
            padding: 30px 0 50px;
        }
        .article-wrap {
            max-width: 860px;
            margin: 0 auto;
            background: var(--card-bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 40px 35px;
        }
        .article-wrap h1 {
            font-size: 2.2rem;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 10px;
            color: var(--secondary);
        }
        .article-wrap h1 i {
            color: var(--primary);
            margin-right: 10px;
        }
        .meta-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            font-size: 0.9rem;
            color: var(--text-light);
            margin-bottom: 25px;
            padding-bottom: 18px;
            border-bottom: 1px solid var(--border);
        }
        .meta-bar i {
            margin-right: 6px;
            color: var(--primary);
        }
        .article-wrap h2 {
            font-size: 1.6rem;
            font-weight: 700;
            margin: 40px 0 16px;
            color: var(--secondary);
            border-left: 5px solid var(--primary);
            padding-left: 16px;
        }
        .article-wrap h2 i {
            color: var(--primary);
            margin-right: 8px;
        }
        .article-wrap h3 {
            font-size: 1.25rem;
            font-weight: 600;
            margin: 28px 0 12px;
            color: var(--secondary);
        }
        .article-wrap h3 i {
            color: var(--accent);
            margin-right: 8px;
        }
        .article-wrap h4 {
            font-size: 1.05rem;
            font-weight: 600;
            margin: 20px 0 10px;
            color: #333;
        }
        .article-wrap p {
            margin-bottom: 16px;
            font-size: 1rem;
            color: #333;
        }
        .article-wrap ul,
        .article-wrap ol {
            margin: 12px 0 20px 24px;
        }
        .article-wrap li {
            margin-bottom: 8px;
            font-size: 1rem;
        }
        .article-wrap .highlight-box {
            background: #fef9e7;
            border-left: 4px solid var(--accent);
            padding: 18px 22px;
            border-radius: 8px;
            margin: 24px 0;
        }
        .article-wrap .highlight-box strong {
            color: var(--primary-dark);
        }
        .article-wrap .tip-box {
            background: #e8f0fe;
            border-left: 4px solid #1a73e8;
            padding: 18px 22px;
            border-radius: 8px;
            margin: 24px 0;
        }
        .article-wrap .tip-box strong {
            color: #1a73e8;
        }
        .article-wrap .img-wrapper {
            margin: 30px 0;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .article-wrap .img-wrapper figcaption {
            background: var(--secondary);
            color: #eee;
            padding: 10px 16px;
            font-size: 0.85rem;
            text-align: center;
            font-style: italic;
        }
        .search-block {
            background: var(--secondary);
            padding: 30px 25px;
            border-radius: var(--radius);
            margin: 30px 0;
            color: #fff;
        }
        .search-block h3 {
            color: var(--accent);
            margin-bottom: 12px;
        }
        .search-form {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .search-form input[type="text"] {
            flex: 1;
            min-width: 180px;
            padding: 12px 18px;
            border: none;
            border-radius: 8px;
            font-size: 1rem;
            outline: none;
            background: #fff;
            color: #222;
        }
        .search-form button {
            padding: 12px 28px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 8px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .search-form button:hover {
            background: var(--primary-dark);
            transform: scale(1.02);
        }
        .interact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin: 40px 0 20px;
        }
        .interact-card {
            background: #f9fafc;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px 22px;
        }
        .interact-card h3 {
            margin-bottom: 14px;
            font-size: 1.15rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .interact-card h3 i {
            color: var(--primary);
        }
        .interact-card form {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .interact-card form input,
        .interact-card form textarea,
        .interact-card form select {
            padding: 10px 14px;
            border: 1px solid var(--border);
            border-radius: 8px;
            font-size: 0.95rem;
            font-family: var(--font);
            outline: none;
            transition: border 0.2s;
            background: #fff;
        }
        .interact-card form input:focus,
        .interact-card form textarea:focus,
        .interact-card form select:focus {
            border-color: var(--primary);
        }
        .interact-card form textarea {
            min-height: 80px;
            resize: vertical;
        }
        .interact-card form button {
            padding: 10px 20px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s;
            align-self: flex-start;
        }
        .interact-card form button:hover {
            background: var(--primary-dark);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            gap: 4px;
            justify-content: flex-end;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 1.8rem;
            color: #ccc;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: var(--accent);
        }
        .friend-links-section {
            background: var(--secondary);
            color: #eee;
            padding: 40px 0;
            margin-top: 20px;
        }
        .friend-links-section .container {
            max-width: var(--max-width);
        }
        .friend-links-section h3 {
            color: var(--accent);
            font-size: 1.3rem;
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        friend-link {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
            padding: 6px 0;
        }
        friend-link a {
            color: #bbb;
            font-size: 0.9rem;
            transition: color 0.2s;
            position: relative;
        }
        friend-link a:hover {
            color: var(--accent);
            text-decoration: none;
        }
        friend-link a::before {
            content: "•";
            color: var(--accent);
            margin-right: 6px;
        }
        .site-footer {
            background: #0f0f1a;
            color: #aaa;
            padding: 28px 0;
            font-size: 0.85rem;
            text-align: center;
            border-top: 2px solid var(--primary);
        }
        .site-footer .container {
            display: flex;
            flex-direction: column;
            gap: 10px;
            align-items: center;
        }
        .site-footer a {
            color: #ccc;
        }
        .site-footer a:hover {
            color: var(--accent);
        }
        .site-footer .copyright {
            font-size: 0.8rem;
            letter-spacing: 0.3px;
        }
        .site-footer .copyright i {
            color: var(--primary);
            margin-right: 4px;
        }
        @media (max-width: 900px) {
            .article-wrap {
                padding: 30px 20px;
            }
            .article-wrap h1 {
                font-size: 1.7rem;
            }
            .interact-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 768px) {
            :root {
                --header-h: 60px;
            }
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                position: fixed;
                top: var(--header-h);
                left: 0;
                width: 100%;
                background: var(--secondary);
                flex-direction: column;
                padding: 16px 20px 24px;
                gap: 4px;
                box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: transform 0.35s ease, opacity 0.35s ease;
                z-index: 999;
                border-top: 1px solid rgba(255, 255, 255, 0.05);
                max-height: calc(100vh - var(--header-h));
                overflow-y: auto;
            }
            .nav-menu.active {
                transform: translateY(0);
                opacity: 1;
                pointer-events: all;
            }
            .nav-menu li a {
                padding: 12px 16px;
                width: 100%;
                border-radius: 6px;
                font-size: 1rem;
            }
            .my-logo {
                font-size: 1.2rem;
            }
            .my-logo i {
                font-size: 1.4rem;
            }
            .article-wrap h1 {
                font-size: 1.4rem;
            }
            .article-wrap h2 {
                font-size: 1.25rem;
                padding-left: 12px;
            }
            .article-wrap h3 {
                font-size: 1.1rem;
            }
            .article-wrap {
                padding: 20px 16px;
                border-radius: 8px;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                width: 100%;
                justify-content: center;
            }
            .breadcrumb-wrap {
                font-size: 0.75rem;
                padding: 8px 0;
            }
            .meta-bar {
                font-size: 0.8rem;
                gap: 10px;
                flex-wrap: wrap;
            }
            .friend-links-section h3 {
                font-size: 1.1rem;
            }
            friend-link {
                gap: 8px 16px;
            }
        }
        @media (max-width: 480px) {
            .article-wrap h1 {
                font-size: 1.2rem;
            }
            .article-wrap {
                padding: 16px 12px;
            }
            .interact-card {
                padding: 16px;
            }
            .star-rating label {
                font-size: 1.5rem;
            }
        }
        .scroll-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: var(--primary);
            color: #fff;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            box-shadow: 0 4px 16px rgba(200, 16, 46, 0.35);
            cursor: pointer;
            transition: transform 0.25s, background 0.25s;
            z-index: 500;
            border: none;
        }
        .scroll-top:hover {
            transform: translateY(-4px);
            background: var(--primary-dark);
        }
        .table-wrap {
            overflow-x: auto;
            margin: 24px 0;
        }
        .table-wrap table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
            background: #fff;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
        }
        .table-wrap th {
            background: var(--secondary);
            color: #fff;
            padding: 12px 16px;
            text-align: left;
            font-weight: 600;
        }
        .table-wrap td {
            padding: 10px 16px;
            border-bottom: 1px solid var(--border);
        }
        .table-wrap tr:last-child td {
            border-bottom: none;
        }
        .table-wrap tr:hover td {
            background: #f8f9fa;
        }
        @media (max-width: 600px) {
            .table-wrap table {
                font-size: 0.82rem;
            }
            .table-wrap th,
            .table-wrap td {
                padding: 8px 10px;
            }
            .scroll-top {
                width: 40px;
                height: 40px;
                font-size: 1rem;
                bottom: 16px;
                right: 16px;
            }
        }