*,
        *::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: #f8f7f4;
            color: #2c2c2c;
            line-height: 1.7;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        a {
            color: #1a6b8a;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover {
            color: #b8860b;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #0b1a2c 0%, #1a3a4a 100%);
            color: #f0e9d8;
            padding: 12px 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: 1.65rem;
            font-weight: 800;
            letter-spacing: 1px;
            color: #f0e9d8;
            text-transform: uppercase;
            background: linear-gradient(135deg, #f5d98a, #e6b800);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            transition: opacity 0.3s;
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none;
        }
        .my-logo i {
            -webkit-text-fill-color: #f0e9d8;
            margin-right: 6px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid #f0e9d8;
            color: #f0e9d8;
            font-size: 1.4rem;
            padding: 6px 14px;
            border-radius: 8px;
            cursor: pointer;
            transition: background 0.3s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .main-nav {
            display: flex;
            gap: 8px 18px;
            flex-wrap: wrap;
            align-items: center;
        }
        .main-nav a {
            color: #d4d4d4;
            font-weight: 500;
            padding: 6px 8px;
            border-radius: 6px;
            transition: all 0.25s;
            font-size: 0.95rem;
        }
        .main-nav a:hover {
            color: #f5d98a;
            background: rgba(255, 255, 255, 0.07);
            text-decoration: none;
        }
        .main-nav a.active {
            color: #f5d98a;
            border-bottom: 2px solid #f5d98a;
        }
        .breadcrumb-wrap {
            background: #eae6de;
            padding: 10px 0;
            border-bottom: 1px solid #d6d0c4;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
            font-size: 0.9rem;
            color: #5a5a5a;
        }
        .breadcrumb a {
            color: #1a6b8a;
        }
        .breadcrumb a:hover {
            color: #b8860b;
        }
        .breadcrumb .sep {
            color: #999;
        }
        .hero {
            background: linear-gradient(145deg, #e8e1d5, #f5f0e8);
            padding: 40px 0 30px;
            text-align: center;
            border-bottom: 2px solid #d6d0c4;
        }
        .hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #0b1a2c;
            letter-spacing: -0.5px;
            line-height: 1.2;
        }
        .hero h1 i {
            color: #b8860b;
            margin-right: 10px;
        }
        .hero .subtitle {
            font-size: 1.15rem;
            color: #4a4a4a;
            margin-top: 8px;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }
        .hero .last-updated {
            display: inline-block;
            margin-top: 16px;
            background: #0b1a2c;
            color: #f0e9d8;
            padding: 5px 20px;
            border-radius: 30px;
            font-size: 0.9rem;
        }
        .main-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 40px 0;
        }
        .main-content {
            background: #ffffff;
            border-radius: 18px;
            padding: 30px 35px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
        }
        .sidebar {
            background: #ffffff;
            border-radius: 18px;
            padding: 24px 20px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
            align-self: start;
            position: sticky;
            top: 90px;
        }
        .main-content h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: #0b1a2c;
            margin: 2rem 0 0.8rem;
            padding-bottom: 6px;
            border-bottom: 3px solid #e6b800;
        }
        .main-content h2 i {
            color: #b8860b;
            margin-right: 10px;
        }
        .main-content h3 {
            font-size: 1.35rem;
            font-weight: 600;
            color: #1a3a4a;
            margin: 1.6rem 0 0.6rem;
        }
        .main-content h3 i {
            margin-right: 8px;
            color: #b8860b;
        }
        .main-content h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: #2c5a6a;
            margin: 1.2rem 0 0.4rem;
        }
        .main-content p {
            margin-bottom: 1rem;
            color: #333;
        }
        .main-content ul,
        .main-content ol {
            margin: 0.6rem 0 1.2rem 1.6rem;
        }
        .main-content li {
            margin-bottom: 0.4rem;
        }
        .main-content .highlight-box {
            background: #f5f0e8;
            border-left: 5px solid #e6b800;
            padding: 18px 22px;
            border-radius: 0 12px 12px 0;
            margin: 1.4rem 0;
        }
        .main-content .highlight-box strong {
            color: #b8860b;
        }
        .feature-img {
            margin: 1.8rem 0;
            border-radius: 14px;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.08);
        }
        .search-section {
            background: #f5f0e8;
            border-radius: 14px;
            padding: 20px 24px;
            margin: 2rem 0;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 14px;
        }
        .search-section label {
            font-weight: 600;
            font-size: 1.05rem;
            color: #0b1a2c;
        }
        .search-section input[type="text"] {
            flex: 1;
            min-width: 180px;
            padding: 12px 18px;
            border: 2px solid #d6d0c4;
            border-radius: 40px;
            font-size: 1rem;
            background: #fff;
            transition: border 0.3s;
        }
        .search-section input[type="text"]:focus {
            border-color: #e6b800;
            outline: none;
        }
        .search-section button {
            background: #0b1a2c;
            color: #f0e9d8;
            border: none;
            padding: 12px 32px;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s, transform 0.15s;
        }
        .search-section button:hover {
            background: #1a3a4a;
            transform: scale(1.02);
        }
        .interact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin: 2.4rem 0;
        }
        .interact-card {
            background: #f5f0e8;
            border-radius: 14px;
            padding: 20px 22px;
        }
        .interact-card h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: #0b1a2c;
            margin-bottom: 12px;
        }
        .interact-card label {
            display: block;
            font-weight: 500;
            margin: 8px 0 4px;
            color: #2c2c2c;
        }
        .interact-card input,
        .interact-card textarea,
        .interact-card select {
            width: 100%;
            padding: 10px 14px;
            border: 2px solid #d6d0c4;
            border-radius: 10px;
            font-size: 0.95rem;
            background: #fff;
            transition: border 0.3s;
            font-family: inherit;
        }
        .interact-card input:focus,
        .interact-card textarea:focus,
        .interact-card select:focus {
            border-color: #e6b800;
            outline: none;
        }
        .interact-card textarea {
            min-height: 80px;
            resize: vertical;
        }
        .interact-card .btn-submit {
            background: #b8860b;
            color: #fff;
            border: none;
            padding: 10px 28px;
            border-radius: 40px;
            font-size: 0.95rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s, transform 0.15s;
            margin-top: 10px;
        }
        .interact-card .btn-submit:hover {
            background: #9a7008;
            transform: scale(1.02);
        }
        .star-rating {
            display: flex;
            gap: 6px;
            font-size: 1.8rem;
            color: #ccc;
            cursor: pointer;
            margin: 6px 0 10px;
        }
        .star-rating i {
            transition: color 0.2s, transform 0.15s;
        }
        .star-rating i:hover,
        .star-rating i.active {
            color: #e6b800;
            transform: scale(1.1);
        }
        .sidebar h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: #0b1a2c;
            border-bottom: 3px solid #e6b800;
            padding-bottom: 6px;
            margin-bottom: 16px;
        }
        .sidebar ul {
            list-style: none;
            padding: 0;
        }
        .sidebar li {
            margin-bottom: 8px;
        }
        .sidebar a {
            display: block;
            padding: 8px 12px;
            background: #f8f7f4;
            border-radius: 8px;
            font-weight: 500;
            color: #1a6b8a;
            transition: all 0.25s;
            border-left: 3px solid transparent;
        }
        .sidebar a:hover {
            background: #eae6de;
            border-left-color: #e6b800;
            text-decoration: none;
            color: #0b1a2c;
        }
        .sidebar .code-item {
            font-size: 0.85rem;
            background: #0b1a2c;
            color: #f5d98a;
            padding: 4px 10px;
            border-radius: 20px;
            display: inline-block;
            margin-left: 6px;
            font-weight: 600;
        }
        .site-footer {
            background: #0b1a2c;
            color: #c4bcae;
            padding: 36px 0 20px;
            margin-top: auto;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 32px;
        }
        .footer-inner h4 {
            color: #f0e9d8;
            font-size: 1.1rem;
            margin-bottom: 12px;
        }
        .footer-inner a {
            color: #b4ac9e;
        }
        .footer-inner a:hover {
            color: #f5d98a;
        }
        .footer-inner ul {
            list-style: none;
            padding: 0;
        }
        .footer-inner li {
            margin-bottom: 6px;
        }
        friend-link {
            display: block;
            margin-top: 8px;
            font-style: normal;
        }
        friend-link a {
            display: inline-block;
            margin-right: 16px;
            padding: 4px 12px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 20px;
            font-size: 0.9rem;
        }
        .footer-bottom {
            border-top: 1px solid #2a3a4a;
            margin-top: 28px;
            padding-top: 18px;
            text-align: center;
            font-size: 0.9rem;
            color: #8a8478;
        }
        @media (max-width: 992px) {
            .main-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .sidebar {
                position: static;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .main-content {
                padding: 20px 18px;
            }
            .interact-grid {
                grid-template-columns: 1fr;
            }
            .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: flex-start;
                padding-top: 14px;
                gap: 4px;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                width: 100%;
                padding: 10px 12px;
                border-radius: 8px;
            }
            .hero h1 {
                font-size: 1.65rem;
            }
            .hero .subtitle {
                font-size: 1rem;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .search-section {
                flex-direction: column;
                align-items: stretch;
            }
            .search-section button {
                width: 100%;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 12px;
            }
            .main-content {
                padding: 14px 12px;
            }
            .hero h1 {
                font-size: 1.4rem;
            }
            .my-logo {
                font-size: 1.2rem;
            }
        }
        .text-highlight {
            color: #b8860b;
            font-weight: 600;
        }
        .list-inline {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 16px;
            list-style: none;
            padding: 0;
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .emoji-big {
            font-size: 1.4rem;
        }