*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
            background: #f8f9fc;
            color: #1a1a2e;
            line-height: 1.7;
            padding: 0 1rem;
        }
        a {
            color: #e94560;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #c2314a;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1rem;
        }
        .site-header {
            background: linear-gradient(135deg, #0f0f1a 0%, #1a1a3e 100%);
            color: #fff;
            padding: 1rem 0;
            border-radius: 0 0 20px 20px;
            position: relative;
            z-index: 100;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 1rem;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: #fff;
            text-shadow: 0 0 20px rgba(233, 69, 96, 0.4);
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .my-logo:hover {
            text-decoration: none;
            color: #e94560;
        }
        .my-logo .logo-icon {
            font-size: 2rem;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 1.5rem;
        }
        .main-nav a {
            color: #e0e0f0;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.4rem 0;
            border-bottom: 2px solid transparent;
            transition: border-color 0.2s, color 0.2s;
        }
        .main-nav a:hover {
            color: #fff;
            border-bottom-color: #e94560;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.2rem 0.4rem;
        }
        .breadcrumb {
            padding: 0.8rem 0 0.2rem 0;
            font-size: 0.85rem;
            color: #aaa;
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem;
        }
        .breadcrumb a {
            color: #e94560;
        }
        .breadcrumb span {
            color: #ccc;
        }
        .hero {
            padding: 2.5rem 0 1.5rem 0;
            text-align: center;
        }
        .hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            background: linear-gradient(135deg, #e94560, #ff6b6b, #e94560);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
            margin-bottom: 0.8rem;
        }
        .hero p {
            font-size: 1.15rem;
            color: #555;
            max-width: 760px;
            margin: 0 auto 1.2rem auto;
        }
        .hero .update-badge {
            display: inline-block;
            background: #e94560;
            color: #fff;
            padding: 0.3rem 1.2rem;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 600;
        }
        .search-section {
            background: #fff;
            padding: 1.8rem 2rem;
            border-radius: 16px;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
            margin: 1.5rem 0 2rem 0;
        }
        .search-form {
            display: flex;
            gap: 0.8rem;
            flex-wrap: wrap;
        }
        .search-form input {
            flex: 1;
            min-width: 200px;
            padding: 0.85rem 1.2rem;
            border: 2px solid #e0e0e8;
            border-radius: 30px;
            font-size: 1rem;
            outline: none;
            transition: border-color 0.2s;
        }
        .search-form input:focus {
            border-color: #e94560;
        }
        .search-form button {
            background: #e94560;
            color: #fff;
            border: none;
            padding: 0.85rem 2rem;
            border-radius: 30px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .search-form button:hover {
            background: #c2314a;
            transform: scale(1.02);
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            margin: 2rem 0;
        }
        .main-content {
            background: #fff;
            padding: 2rem 2.2rem;
            border-radius: 20px;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.05);
        }
        .sidebar {
            background: #fff;
            padding: 2rem 1.5rem;
            border-radius: 20px;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.05);
            height: fit-content;
            position: sticky;
            top: 1rem;
        }
        .main-content h2 {
            font-size: 1.8rem;
            margin: 2.2rem 0 1rem 0;
            color: #1a1a2e;
            border-left: 5px solid #e94560;
            padding-left: 1rem;
        }
        .main-content h3 {
            font-size: 1.35rem;
            margin: 1.8rem 0 0.8rem 0;
            color: #2d2d4e;
        }
        .main-content h4 {
            font-size: 1.1rem;
            margin: 1.4rem 0 0.5rem 0;
            color: #3a3a5e;
        }
        .main-content p {
            margin-bottom: 1.2rem;
            color: #2d2d3e;
        }
        .main-content ul,
        .main-content ol {
            margin: 0.8rem 0 1.2rem 2rem;
            color: #2d2d3e;
        }
        .main-content li {
            margin-bottom: 0.4rem;
        }
        .main-content strong {
            color: #1a1a2e;
        }
        .main-content .highlight-box {
            background: #f0f4ff;
            border-left: 4px solid #e94560;
            padding: 1.2rem 1.5rem;
            border-radius: 0 12px 12px 0;
            margin: 1.5rem 0;
        }
        .featured-image {
            margin: 1.8rem 0;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.1);
        }
        .featured-image img {
            width: 100%;
            height: auto;
            display: block;
        }
        .featured-image figcaption {
            background: #f0f0f8;
            padding: 0.6rem 1rem;
            font-size: 0.85rem;
            color: #666;
            text-align: center;
        }
        .code-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
            font-size: 0.95rem;
        }
        .code-table th {
            background: #1a1a3e;
            color: #fff;
            padding: 0.8rem 1rem;
            text-align: left;
            font-weight: 600;
        }
        .code-table td {
            padding: 0.7rem 1rem;
            border-bottom: 1px solid #e8e8f0;
        }
        .code-table tr:hover td {
            background: #f8f0ff;
        }
        .code-table .status-active {
            color: #2e7d32;
            font-weight: 600;
        }
        .code-table .status-expired {
            color: #b71c1c;
        }
        .sidebar h3 {
            font-size: 1.25rem;
            margin-bottom: 1rem;
            color: #1a1a2e;
            border-bottom: 2px solid #e94560;
            padding-bottom: 0.5rem;
        }
        .sidebar ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .sidebar ul li {
            margin-bottom: 0.6rem;
        }
        .sidebar ul li a {
            display: block;
            padding: 0.5rem 0.8rem;
            background: #f8f0ff;
            border-radius: 8px;
            font-size: 0.9rem;
            transition: background 0.2s, transform 0.1s;
        }
        .sidebar ul li a:hover {
            background: #e94560;
            color: #fff;
            text-decoration: none;
            transform: translateX(4px);
        }
        .feedback-section {
            margin: 2.5rem 0 1rem 0;
            padding-top: 1.5rem;
            border-top: 2px solid #e8e8f0;
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
        }
        .feedback-card {
            background: #f8f9fc;
            padding: 1.5rem;
            border-radius: 16px;
        }
        .feedback-card h4 {
            margin-bottom: 1rem;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .feedback-card form {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
        }
        .feedback-card input,
        .feedback-card textarea,
        .feedback-card select {
            padding: 0.7rem 1rem;
            border: 2px solid #e0e0e8;
            border-radius: 10px;
            font-size: 0.95rem;
            outline: none;
            transition: border-color 0.2s;
            font-family: inherit;
        }
        .feedback-card input:focus,
        .feedback-card textarea:focus,
        .feedback-card select:focus {
            border-color: #e94560;
        }
        .feedback-card textarea {
            min-height: 80px;
            resize: vertical;
        }
        .feedback-card button {
            background: #e94560;
            color: #fff;
            border: none;
            padding: 0.7rem 1.5rem;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
            align-self: flex-start;
        }
        .feedback-card button:hover {
            background: #c2314a;
        }
        .star-rating {
            display: flex;
            gap: 0.3rem;
            font-size: 1.5rem;
            color: #ffb300;
            cursor: pointer;
        }
        .star-rating i {
            transition: transform 0.1s;
        }
        .star-rating i:hover {
            transform: scale(1.2);
        }
        friend-link {
            display: block;
            margin-top: 1.5rem;
            padding-top: 1.5rem;
            border-top: 1px solid #e8e8f0;
        }
        friend-link ul {
            list-style: none;
            padding: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
        }
        friend-link ul li a {
            background: #f0f0f8;
            padding: 0.3rem 1rem;
            border-radius: 20px;
            font-size: 0.9rem;
        }
        friend-link ul li a:hover {
            background: #e94560;
            color: #fff;
            text-decoration: none;
        }
        .site-footer {
            background: #0f0f1a;
            color: #ccc;
            padding: 2rem 0;
            border-radius: 20px 20px 0 0;
            margin-top: 3rem;
            text-align: center;
        }
        .site-footer .copyright {
            font-size: 0.85rem;
            opacity: 0.8;
            margin-top: 0.5rem;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
            }
            .feedback-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #1a1a3e;
                padding: 1rem 0;
                border-radius: 0 0 16px 16px;
                gap: 0.2rem;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 0.6rem 1.5rem;
                border-bottom: none;
                width: 100%;
            }
            .main-nav a:hover {
                border-bottom: none;
                background: rgba(233, 69, 96, 0.15);
            }
            .header-inner {
                flex-wrap: wrap;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .main-content {
                padding: 1.2rem 1rem;
            }
            .code-table {
                font-size: 0.8rem;
            }
            .code-table th,
            .code-table td {
                padding: 0.4rem 0.5rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                width: 100%;
                justify-content: center;
            }
        }
        @media (max-width: 480px) {
            .hero h1 {
                font-size: 1.4rem;
            }
            .my-logo {
                font-size: 1.3rem;
            }
            .container {
                padding: 0 0.5rem;
            }
            body {
                padding: 0 0.5rem;
            }
            .breadcrumb {
                font-size: 0.75rem;
            }
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .text-center {
            text-align: center;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .gap-1 {
            gap: 0.5rem;
        }
        .rounded-full {
            border-radius: 999px;
        }