* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, Arial, sans-serif;
            background: #f8f9fc;
            color: #1a1a2e;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: #c9392b;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #a12b1f;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 10px;
        }
        .container {
            max-width: 1180px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #0f0c29, #302b63, #24243e);
            color: #fff;
            padding: 16px 0 12px;
            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: -0.5px;
            color: #f7d44a;
            text-shadow: 0 2px 8px rgba(247, 212, 74, 0.3);
            transition: transform 0.3s;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .my-logo:hover {
            transform: scale(1.02);
            text-decoration: none;
            color: #ffdf5e;
        }
        .my-logo i {
            font-size: 2rem;
            color: #f7d44a;
        }
        .my-logo span {
            font-size: 0.75rem;
            font-weight: 400;
            color: #ccc;
            letter-spacing: 0.3px;
            display: block;
            margin-top: -4px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            font-size: 1.5rem;
            padding: 6px 14px;
            border-radius: 8px;
            cursor: pointer;
            transition: 0.2s;
        }
        .nav-toggle:hover {
            border-color: #f7d44a;
            color: #f7d44a;
        }
        .main-nav {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
            align-items: center;
        }
        .main-nav a {
            color: #eee;
            padding: 8px 16px;
            border-radius: 30px;
            font-size: 0.88rem;
            font-weight: 500;
            transition: all 0.25s;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid transparent;
        }
        .main-nav a:hover {
            background: rgba(247, 212, 74, 0.15);
            color: #f7d44a;
            border-color: rgba(247, 212, 74, 0.3);
            text-decoration: none;
        }
        .main-nav a i {
            margin-right: 6px;
            font-size: 0.8rem;
        }
        .breadcrumb {
            background: #fff;
            padding: 12px 0;
            border-bottom: 1px solid #e9ecef;
            font-size: 0.85rem;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
            align-items: center;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 12px;
            color: #999;
            font-weight: 700;
        }
        .breadcrumb a {
            color: #555;
        }
        .breadcrumb a:hover {
            color: #c9392b;
        }
        .breadcrumb .current {
            color: #1a1a2e;
            font-weight: 600;
        }
        .content-wrap {
            padding: 40px 0 50px;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        @media (max-width: 900px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
        }
        .article-body h1 {
            font-size: 2.5rem;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 12px;
            color: #0f0c29;
        }
        .article-body h1 i {
            color: #f7d44a;
            margin-right: 10px;
        }
        .article-body .meta {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            color: #666;
            font-size: 0.9rem;
            margin-bottom: 28px;
            padding-bottom: 16px;
            border-bottom: 1px solid #e9ecef;
        }
        .article-body .meta i {
            margin-right: 6px;
            color: #c9392b;
        }
        .article-body .last-update {
            font-weight: 600;
            color: #c9392b;
        }
        .article-body h2 {
            font-size: 1.75rem;
            font-weight: 700;
            margin: 40px 0 16px;
            color: #0f0c29;
            border-left: 5px solid #f7d44a;
            padding-left: 18px;
        }
        .article-body h3 {
            font-size: 1.35rem;
            font-weight: 600;
            margin: 30px 0 12px;
            color: #1a1a2e;
        }
        .article-body h4 {
            font-size: 1.1rem;
            font-weight: 600;
            margin: 22px 0 8px;
            color: #333;
        }
        .article-body p {
            margin-bottom: 18px;
            font-size: 1.02rem;
            color: #2d2d3f;
        }
        .article-body ul,
        .article-body ol {
            margin: 12px 0 22px 28px;
        }
        .article-body li {
            margin-bottom: 8px;
            font-size: 1rem;
        }
        .article-body .highlight-box {
            background: linear-gradient(135deg, #fef9e7, #fdf2e9);
            border-left: 5px solid #f7d44a;
            padding: 20px 26px;
            border-radius: 10px;
            margin: 24px 0;
        }
        .article-body .highlight-box strong {
            color: #a12b1f;
        }
        .article-body .feature-img {
            margin: 30px 0;
            border-radius: 12px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
        }
        .article-body .feature-img figcaption {
            font-size: 0.85rem;
            color: #777;
            margin-top: 8px;
            text-align: center;
            font-style: italic;
        }
        .data-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 18px;
            margin: 28px 0;
        }
        .data-card {
            background: #fff;
            border-radius: 12px;
            padding: 22px 18px;
            text-align: center;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
            border: 1px solid #eee;
            transition: transform 0.25s, box-shadow 0.25s;
        }
        .data-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.1);
        }
        .data-card .num {
            font-size: 2.2rem;
            font-weight: 800;
            color: #c9392b;
        }
        .data-card .label {
            font-size: 0.9rem;
            color: #666;
            margin-top: 4px;
        }
        .data-card i {
            font-size: 2rem;
            color: #f7d44a;
            margin-bottom: 8px;
        }
        .sidebar {
            background: #fff;
            border-radius: 14px;
            padding: 24px 20px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
            border: 1px solid #eef0f5;
            position: sticky;
            top: 100px;
            height: fit-content;
        }
        .sidebar h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: #0f0c29;
            border-bottom: 3px solid #f7d44a;
            padding-bottom: 10px;
        }
        .sidebar ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .sidebar li {
            margin-bottom: 10px;
        }
        .sidebar li a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 8px 12px;
            border-radius: 8px;
            background: #f8f9fc;
            transition: 0.2s;
            font-size: 0.92rem;
        }
        .sidebar li a:hover {
            background: #fef5e7;
            color: #c9392b;
            text-decoration: none;
        }
        .sidebar li a i {
            color: #f7d44a;
            font-size: 0.85rem;
            width: 18px;
            text-align: center;
        }
        .search-section {
            background: #fff;
            border-radius: 14px;
            padding: 24px 26px;
            margin: 36px 0;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
            border: 1px solid #eef0f5;
        }
        .search-section h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .search-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .search-form input {
            flex: 1;
            min-width: 180px;
            padding: 14px 20px;
            border: 2px solid #ddd;
            border-radius: 30px;
            font-size: 1rem;
            transition: 0.3s;
            outline: none;
            background: #fafafa;
        }
        .search-form input:focus {
            border-color: #f7d44a;
            box-shadow: 0 0 0 4px rgba(247, 212, 74, 0.15);
            background: #fff;
        }
        .search-form button {
            padding: 14px 32px;
            background: #c9392b;
            color: #fff;
            border: none;
            border-radius: 30px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: 0.3s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .search-form button:hover {
            background: #a12b1f;
            transform: scale(1.02);
        }
        .feedback-section {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            margin: 40px 0;
        }
        @media (max-width: 700px) {
            .feedback-section {
                grid-template-columns: 1fr;
            }
        }
        .feedback-card {
            background: #fff;
            border-radius: 14px;
            padding: 26px 24px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
            border: 1px solid #eef0f5;
        }
        .feedback-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .feedback-card textarea,
        .feedback-card input {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid #ddd;
            border-radius: 10px;
            font-size: 1rem;
            transition: 0.3s;
            outline: none;
            background: #fafafa;
            font-family: inherit;
            margin-bottom: 14px;
        }
        .feedback-card textarea:focus,
        .feedback-card input:focus {
            border-color: #f7d44a;
            box-shadow: 0 0 0 4px rgba(247, 212, 74, 0.1);
            background: #fff;
        }
        .feedback-card textarea {
            min-height: 100px;
            resize: vertical;
        }
        .feedback-card button {
            padding: 12px 28px;
            background: #0f0c29;
            color: #fff;
            border: none;
            border-radius: 30px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: 0.3s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .feedback-card button:hover {
            background: #302b63;
            transform: scale(1.02);
        }
        .star-rating {
            display: flex;
            gap: 6px;
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            margin-bottom: 14px;
            direction: rtl;
        }
        .star-rating i {
            transition: color 0.2s, transform 0.15s;
        }
        .star-rating i:hover,
        .star-rating i.active {
            color: #f7d44a;
            transform: scale(1.1);
        }
        .star-rating i.selected {
            color: #f7d44a;
        }
        .site-footer {
            background: #0f0c29;
            color: #ccc;
            padding: 40px 0 30px;
            margin-top: 40px;
        }
        .site-footer .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 40px;
        }
        @media (max-width: 700px) {
            .site-footer .footer-inner {
                grid-template-columns: 1fr;
            }
        }
        .site-footer h4 {
            color: #f7d44a;
            font-size: 1.1rem;
            margin-bottom: 14px;
            font-weight: 700;
        }
        .site-footer a {
            color: #bbb;
            transition: 0.2s;
        }
        .site-footer a:hover {
            color: #f7d44a;
            text-decoration: none;
        }
        .friend-link {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 20px;
            padding: 18px 0 10px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 28px;
            font-size: 0.9rem;
        }
        .friend-link a {
            color: #aaa;
            border-bottom: 1px dotted rgba(255, 255, 255, 0.15);
        }
        .friend-link a:hover {
            color: #f7d44a;
            border-color: #f7d44a;
        }
        .copyright {
            text-align: center;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            margin-top: 24px;
            font-size: 0.85rem;
            color: #888;
        }
        .copyright strong {
            color: #f7d44a;
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 6px;
                margin-top: 14px;
                background: rgba(255, 255, 255, 0.04);
                padding: 12px 8px;
                border-radius: 12px;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                width: 100%;
                text-align: left;
                padding: 10px 16px;
            }
            .article-body h1 {
                font-size: 1.8rem;
            }
            .article-body h2 {
                font-size: 1.4rem;
            }
            .content-wrap {
                padding: 24px 0 30px;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .data-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 14px;
            }
            .article-body h1 {
                font-size: 1.5rem;
            }
            .data-grid {
                grid-template-columns: 1fr;
            }
            .search-form input,
            .search-form button {
                width: 100%;
            }
        }
        .text-muted {
            color: #888;
            font-size: 0.9rem;
        }
        .mt-2 {
            margin-top: 16px;
        }
        .mb-2 {
            margin-bottom: 16px;
        }
        .tag {
            display: inline-block;
            background: #fef5e7;
            color: #a12b1f;
            padding: 2px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
        }
        .inline-list {
            display: inline;
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .inline-list li {
            display: inline;
        }
        .inline-list li+li::before {
            content: " • ";
            color: #f7d44a;
            font-weight: 700;
        }