*,
        *::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: #f5f7fa;
            color: #1a1a2e;
            line-height: 1.8;
            padding: 0;
            margin: 0;
        }
        a {
            color: #e63946;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #b71c1c;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        h1,
        h2,
        h3,
        h4 {
            font-weight: 700;
            line-height: 1.3;
            color: #1a1a2e;
        }
        h1 {
            font-size: 2.2rem;
            margin: 0.5em 0 0.4em;
        }
        h2 {
            font-size: 1.8rem;
            margin: 1.2em 0 0.5em;
            border-bottom: 3px solid #e63946;
            padding-bottom: 0.25em;
        }
        h3 {
            font-size: 1.35rem;
            margin: 1em 0 0.4em;
            color: #2d2d44;
        }
        h4 {
            font-size: 1.1rem;
            margin: 0.8em 0 0.3em;
            color: #3d3d5c;
        }
        p {
            margin-bottom: 1em;
        }
        ul,
        ol {
            margin: 0.6em 0 1em 1.5em;
        }
        li {
            margin-bottom: 0.4em;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #0f0c29, #302b63, #24243e);
            color: #fff;
            padding: 18px 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;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: 1px;
            color: #ffd700;
            text-shadow: 0 0 10px rgba(255, 215, 0, 0.3);
            transition: transform 0.2s;
        }
        .my-logo:hover {
            transform: scale(1.03);
            text-decoration: none;
            color: #ffe44d;
        }
        .my-logo small {
            display: block;
            font-size: 0.65rem;
            font-weight: 400;
            color: #b0b0d0;
            letter-spacing: 2px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.12);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        .main-nav a {
            color: #ddd;
            padding: 8px 16px;
            border-radius: 30px;
            font-size: 0.92rem;
            font-weight: 500;
            transition: all 0.2s;
            white-space: nowrap;
        }
        .main-nav a:hover,
        .main-nav a.active {
            background: rgba(255, 215, 0, 0.18);
            color: #ffd700;
            text-decoration: none;
        }
        .main-nav a i {
            margin-right: 6px;
        }
        .breadcrumb {
            background: #eaeef3;
            padding: 12px 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #d0d7de;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
            margin: 0;
            padding: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 10px;
            color: #888;
            font-weight: 700;
        }
        .breadcrumb a {
            color: #e63946;
        }
        .breadcrumb .current {
            color: #555;
            font-weight: 600;
        }
        .search-wrap {
            background: #fff;
            padding: 24px 0;
            border-bottom: 1px solid #e0e4e8;
        }
        .search-form {
            display: flex;
            gap: 12px;
            max-width: 640px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }
        .search-form input[type="text"] {
            flex: 1;
            min-width: 200px;
            padding: 14px 20px;
            border: 2px solid #d0d7de;
            border-radius: 50px;
            font-size: 1rem;
            outline: none;
            transition: border 0.2s;
        }
        .search-form input[type="text"]:focus {
            border-color: #e63946;
        }
        .search-form button {
            padding: 14px 32px;
            background: #e63946;
            color: #fff;
            border: none;
            border-radius: 50px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .search-form button:hover {
            background: #b71c1c;
        }
        .content-area {
            padding: 40px 0 60px;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
        }
        .main-content {
            background: #fff;
            border-radius: 20px;
            padding: 32px 36px;
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.05);
        }
        .sidebar {
            background: #fff;
            border-radius: 20px;
            padding: 28px 24px;
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.05);
            align-self: start;
            position: sticky;
            top: 100px;
        }
        .sidebar h3 {
            font-size: 1.2rem;
            border-bottom: 2px solid #e63946;
            padding-bottom: 8px;
            margin-bottom: 16px;
        }
        .sidebar ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .sidebar li {
            margin-bottom: 10px;
        }
        .sidebar a {
            display: block;
            padding: 8px 12px;
            background: #f5f7fa;
            border-radius: 8px;
            font-size: 0.92rem;
            transition: background 0.2s;
        }
        .sidebar a:hover {
            background: #fee2e2;
            text-decoration: none;
        }
        .sidebar a i {
            color: #e63946;
            margin-right: 8px;
            width: 18px;
        }
        .featured-image {
            margin: 28px 0;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
        }
        .featured-image img {
            width: 100%;
            height: auto;
            display: block;
        }
        .featured-image figcaption {
            background: #f0f2f5;
            padding: 12px 20px;
            font-size: 0.9rem;
            color: #555;
            text-align: center;
            font-style: italic;
        }
        .highlight-box {
            background: linear-gradient(135deg, #fef3c7, #fde68a);
            border-left: 6px solid #e63946;
            padding: 20px 24px;
            border-radius: 0 12px 12px 0;
            margin: 24px 0;
        }
        .highlight-box strong {
            color: #b71c1c;
        }
        .tip-card {
            background: #f0fdf4;
            border: 1px solid #bbf7d0;
            border-radius: 14px;
            padding: 18px 22px;
            margin: 18px 0;
        }
        .tip-card i {
            color: #16a34a;
            margin-right: 8px;
        }
        .stat-block {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
            gap: 16px;
            margin: 24px 0;
        }
        .stat-item {
            background: #f8fafc;
            border-radius: 14px;
            padding: 18px 12px;
            text-align: center;
            border: 1px solid #e2e8f0;
        }
        .stat-item .num {
            font-size: 1.8rem;
            font-weight: 800;
            color: #e63946;
            display: block;
        }
        .stat-item .label {
            font-size: 0.85rem;
            color: #4a4a6a;
            margin-top: 4px;
        }
        .user-feedback {
            margin-top: 48px;
            padding-top: 32px;
            border-top: 2px solid #e0e4e8;
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }
        .comment-form textarea,
        .comment-form input,
        .rating-form select,
        .rating-form input {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid #d0d7de;
            border-radius: 10px;
            font-size: 0.95rem;
            font-family: inherit;
            transition: border 0.2s;
            margin-bottom: 12px;
        }
        .comment-form textarea:focus,
        .comment-form input:focus,
        .rating-form select:focus,
        .rating-form input:focus {
            border-color: #e63946;
            outline: none;
        }
        .comment-form textarea {
            min-height: 100px;
            resize: vertical;
        }
        .feedback-grid .btn {
            padding: 12px 28px;
            background: #e63946;
            color: #fff;
            border: none;
            border-radius: 50px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .feedback-grid .btn:hover {
            background: #b71c1c;
        }
        .rating-form .stars-wrap {
            display: flex;
            gap: 4px;
            font-size: 1.6rem;
            color: #f59e0b;
            margin-bottom: 12px;
            cursor: pointer;
        }
        .rating-form .stars-wrap i {
            transition: transform 0.15s;
        }
        .rating-form .stars-wrap i:hover {
            transform: scale(1.2);
        }
        .site-footer {
            background: #0f0c29;
            color: #ccc;
            padding: 40px 0 30px;
            border-top: 4px solid #e63946;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 30px;
            margin-bottom: 30px;
        }
        .site-footer h4 {
            color: #ffd700;
            font-size: 1.1rem;
            margin-bottom: 14px;
            border-bottom: 1px solid #333;
            padding-bottom: 6px;
        }
        .site-footer a {
            color: #bbb;
            transition: color 0.2s;
        }
        .site-footer a:hover {
            color: #ffd700;
            text-decoration: none;
        }
        .friend-link {
            display: block;
            padding: 6px 0;
            font-size: 0.92rem;
        }
        .friend-link a {
            display: inline-block;
            padding: 4px 0;
        }
        .friend-link i {
            margin-right: 8px;
            color: #ffd700;
            width: 18px;
        }
        .copyright {
            border-top: 1px solid #2a2a4a;
            padding-top: 20px;
            text-align: center;
            font-size: 0.88rem;
            color: #8888aa;
        }
        .copyright strong {
            color: #ddd;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                order: 2;
            }
            .main-content {
                order: 1;
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                padding-top: 14px;
                gap: 2px;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 12px 16px;
                border-radius: 8px;
                border-top: 1px solid rgba(255, 255, 255, 0.05);
            }
            .header-inner {
                align-items: center;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .my-logo small {
                font-size: 0.55rem;
            }
            .main-content {
                padding: 20px 16px;
            }
            .feedback-grid {
                grid-template-columns: 1fr;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                text-align: center;
            }
            h1 {
                font-size: 1.6rem;
            }
            h2 {
                font-size: 1.3rem;
            }
            h3 {
                font-size: 1.1rem;
            }
            .search-form input[type="text"] {
                min-width: 160px;
            }
            .stat-block {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 12px;
            }
            .stat-block {
                grid-template-columns: 1fr;
            }
            .search-form button {
                padding: 12px 20px;
                font-size: 0.9rem;
            }
        }
        @media print {
            .site-header,
            .search-wrap,
            .breadcrumb,
            .sidebar,
            .user-feedback,
            .nav-toggle {
                display: none !important;
            }
            .content-grid {
                display: block;
            }
            .main-content {
                box-shadow: none;
                padding: 0;
            }
            .site-footer {
                background: #fff;
                color: #333;
                border-top: 1px solid #ccc;
            }
            .site-footer h4 {
                color: #333;
            }
            .site-footer a {
                color: #333;
            }
        }