*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', sans-serif;
            line-height: 1.75;
            color: #1e2a3a;
            background: #f4f7fb;
            padding: 0;
            margin: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: #0b6e4f;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover,
        a:focus {
            color: #084c36;
            text-decoration: underline;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        li {
            margin-bottom: 0.4rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            color: #0d2b3e;
            margin-top: 1.8rem;
            margin-bottom: 0.8rem;
            font-weight: 700;
        }
        h1 {
            font-size: 2.2rem;
            margin-top: 0.2rem;
            border-bottom: 4px solid #0b6e4f;
            padding-bottom: 0.5rem;
            display: inline-block;
        }
        h2 {
            font-size: 1.7rem;
            border-left: 5px solid #0b6e4f;
            padding-left: 1rem;
            margin-top: 2.4rem;
        }
        h3 {
            font-size: 1.3rem;
            margin-top: 1.8rem;
            color: #115c44;
        }
        h4 {
            font-size: 1.1rem;
            margin-top: 1.2rem;
            color: #1f4a3a;
        }
        p {
            margin-bottom: 1.2rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.2rem;
        }
        .site-header {
            background: linear-gradient(135deg, #0d2b3e 0%, #1a4a3a 100%);
            color: #fff;
            padding: 0.6rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: #f5d742;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
            transition: transform 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }
        .my-logo:hover {
            transform: scale(1.02);
            text-decoration: none;
            color: #f5d742;
        }
        .my-logo i {
            font-size: 2rem;
            color: #7fc8b8;
        }
        .my-logo span {
            font-weight: 300;
            color: #b8e0d4;
            font-size: 0.9rem;
            display: block;
            letter-spacing: 1px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid rgba(255, 255, 255, 0.5);
            color: #fff;
            font-size: 1.6rem;
            padding: 0.3rem 0.8rem;
            border-radius: 6px;
            cursor: pointer;
            transition: 0.2s;
        }
        .nav-toggle:hover {
            border-color: #f5d742;
            color: #f5d742;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 0.2rem;
            flex-wrap: wrap;
        }
        .main-nav a {
            color: #e6f0ea;
            font-weight: 500;
            padding: 0.5rem 1rem;
            border-radius: 30px;
            font-size: 0.95rem;
            transition: background 0.25s, color 0.25s;
            white-space: nowrap;
        }
        .main-nav a:hover,
        .main-nav a.active {
            background: rgba(245, 215, 66, 0.18);
            color: #f5d742;
            text-decoration: none;
        }
        .main-nav a i {
            margin-right: 0.4rem;
            font-size: 0.85rem;
        }
        .breadcrumb {
            background: #e8edf2;
            padding: 0.6rem 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #d0d9e2;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem;
            padding: 0;
            margin: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin: 0 0.5rem;
            color: #7f8c9b;
        }
        .breadcrumb a {
            color: #0b6e4f;
        }
        .breadcrumb .current {
            color: #3d4e5f;
            font-weight: 600;
        }
        .hero {
            background: linear-gradient(145deg, #eef5f2 0%, #dce8e0 100%);
            border-radius: 24px;
            padding: 2.5rem 2rem;
            margin: 1.8rem 0 2.5rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 2rem;
            box-shadow: 0 8px 30px rgba(11, 110, 79, 0.08);
        }
        .hero-text {
            flex: 2 1 300px;
        }
        .hero-text p {
            font-size: 1.15rem;
            color: #1f3a2e;
        }
        .hero-img {
            flex: 1 1 240px;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.08);
        }
        .hero-img img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }
        .last-updated {
            display: inline-block;
            background: #0b6e4f;
            color: #fff;
            padding: 0.3rem 1rem;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 500;
            margin-top: 0.6rem;
        }
        .last-updated i {
            margin-right: 0.4rem;
        }
        .search-section {
            background: #fff;
            border-radius: 20px;
            padding: 2rem 1.8rem;
            margin: 2rem 0;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
            border: 1px solid #e2ece6;
        }
        .search-form {
            display: flex;
            gap: 0.8rem;
            flex-wrap: wrap;
            max-width: 700px;
            margin: 0 auto;
        }
        .search-form input[type="text"] {
            flex: 1 1 220px;
            padding: 0.9rem 1.4rem;
            border: 2px solid #d5e3dc;
            border-radius: 50px;
            font-size: 1rem;
            outline: none;
            transition: border 0.3s;
            background: #f9fcfb;
        }
        .search-form input[type="text"]:focus {
            border-color: #0b6e4f;
            background: #fff;
        }
        .search-form button {
            background: #0b6e4f;
            color: #fff;
            border: none;
            padding: 0.9rem 2.2rem;
            border-radius: 50px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s, transform 0.15s;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .search-form button:hover {
            background: #084c36;
            transform: translateY(-2px);
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            margin: 2rem 0;
        }
        .content-main {
            background: #fff;
            border-radius: 24px;
            padding: 2.2rem 2rem;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.03);
            border: 1px solid #e8f0ec;
        }
        .content-main p,
        .content-main li {
            font-size: 1.05rem;
            color: #1e2e3a;
        }
        .sidebar {
            background: #fff;
            border-radius: 24px;
            padding: 1.8rem 1.5rem;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.03);
            border: 1px solid #e8f0ec;
            align-self: start;
            position: sticky;
            top: 90px;
        }
        .sidebar h3 {
            font-size: 1.2rem;
            margin-top: 0;
            border-bottom: 2px solid #d5e3dc;
            padding-bottom: 0.6rem;
        }
        .sidebar ul {
            list-style: none;
            padding: 0;
        }
        .sidebar ul li {
            padding: 0.5rem 0;
            border-bottom: 1px solid #f0f5f2;
        }
        .sidebar ul li a {
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .sidebar ul li a i {
            color: #0b6e4f;
            font-size: 0.8rem;
        }
        .interaction-section {
            background: #fff;
            border-radius: 24px;
            padding: 2rem 1.8rem;
            margin: 2.5rem 0;
            border: 1px solid #e8f0ec;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.03);
        }
        .interaction-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 2.5rem;
        }
        .comment-area,
        .rating-area {
            flex: 1 1 260px;
        }
        .comment-area h3,
        .rating-area h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .comment-area textarea {
            width: 100%;
            padding: 0.9rem 1.2rem;
            border: 2px solid #d5e3dc;
            border-radius: 16px;
            font-size: 0.95rem;
            resize: vertical;
            min-height: 110px;
            font-family: inherit;
            transition: border 0.3s;
            background: #f9fcfb;
        }
        .comment-area textarea:focus {
            border-color: #0b6e4f;
            background: #fff;
            outline: none;
        }
        .comment-area button,
        .rating-area button {
            background: #0b6e4f;
            color: #fff;
            border: none;
            padding: 0.7rem 2rem;
            border-radius: 50px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s, transform 0.15s;
            margin-top: 0.8rem;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .comment-area button:hover,
        .rating-area button:hover {
            background: #084c36;
            transform: translateY(-2px);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            gap: 0.3rem;
            justify-content: flex-start;
            font-size: 2rem;
            margin: 0.6rem 0;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            color: #d0d9d4;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f5b342;
        }
        .rating-value {
            font-weight: 700;
            color: #0b6e4f;
            margin-left: 0.6rem;
        }
        .code-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.4rem 0;
            font-size: 0.95rem;
        }
        .code-table th {
            background: #0d2b3e;
            color: #fff;
            padding: 0.7rem 1rem;
            text-align: left;
            font-weight: 600;
        }
        .code-table td {
            padding: 0.7rem 1rem;
            border-bottom: 1px solid #e0eae4;
        }
        .code-table tr:nth-child(even) {
            background: #f6faf8;
        }
        .code-table tr:hover {
            background: #e8f3ee;
        }
        .code-badge {
            background: #f5d742;
            color: #1e2a3a;
            padding: 0.2rem 0.8rem;
            border-radius: 30px;
            font-weight: 700;
            font-size: 0.8rem;
            display: inline-block;
        }
        .site-footer {
            background: #0d2b3e;
            color: #cfdfd8;
            padding: 2.5rem 0 1.2rem;
            margin-top: 4rem;
            border-top: 4px solid #0b6e4f;
        }
        .footer-inner {
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
            justify-content: space-between;
        }
        .footer-col {
            flex: 1 1 180px;
        }
        .footer-col h4 {
            color: #f5d742;
            margin-top: 0;
            font-size: 1.1rem;
        }
        .footer-col a {
            color: #b8d4c8;
            display: block;
            padding: 0.2rem 0;
        }
        .footer-col a:hover {
            color: #f5d742;
        }
        friend-link {
            display: block;
            padding: 0.3rem 0;
        }
        friend-link a {
            color: #b8d4c8;
        }
        friend-link a:hover {
            color: #f5d742;
        }
        .copyright {
            text-align: center;
            padding-top: 1.8rem;
            margin-top: 2rem;
            border-top: 1px solid #1f4a3a;
            font-size: 0.9rem;
            color: #8fada0;
        }
        .copyright strong {
            color: #cfdfd8;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                order: 2;
            }
            .content-main {
                order: 1;
            }
            .hero {
                flex-direction: column;
                padding: 1.8rem 1.2rem;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                background: rgba(13, 43, 62, 0.97);
                padding: 1rem 0.5rem;
                border-radius: 0 0 20px 20px;
                margin-top: 0.6rem;
                gap: 0.2rem;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 0.7rem 1.2rem;
                width: 100%;
                border-radius: 10px;
            }
            .header-inner {
                align-items: center;
            }
            .my-logo {
                font-size: 1.5rem;
            }
            .my-logo span {
                font-size: 0.75rem;
            }
            .hero-text p {
                font-size: 1rem;
            }
            .content-main {
                padding: 1.2rem 1rem;
            }
            .code-table {
                font-size: 0.8rem;
            }
            .code-table th,
            .code-table td {
                padding: 0.4rem 0.6rem;
            }
            .search-form input[type="text"] {
                font-size: 0.9rem;
                padding: 0.7rem 1rem;
            }
            .search-form button {
                padding: 0.7rem 1.4rem;
                font-size: 0.9rem;
            }
            .interaction-grid {
                flex-direction: column;
                gap: 1.5rem;
            }
            .breadcrumb {
                font-size: 0.8rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 0.8rem;
            }
            h1 {
                font-size: 1.5rem;
            }
            h2 {
                font-size: 1.2rem;
                padding-left: 0.6rem;
            }
            .hero {
                padding: 1.2rem 0.8rem;
                border-radius: 16px;
            }
            .content-main {
                padding: 1rem 0.8rem;
                border-radius: 16px;
            }
            .sidebar {
                padding: 1rem 0.8rem;
                border-radius: 16px;
            }
            .interaction-section {
                padding: 1.2rem 1rem;
                border-radius: 16px;
            }
            .search-section {
                padding: 1.2rem 1rem;
                border-radius: 16px;
            }
            .star-rating {
                font-size: 1.6rem;
            }
            .my-logo {
                font-size: 1.3rem;
            }
            .my-logo i {
                font-size: 1.4rem;
            }
        }
        .highlight {
            background: #f5f9f7;
            border-left: 4px solid #0b6e4f;
            padding: 1rem 1.4rem;
            border-radius: 0 12px 12px 0;
            margin: 1.4rem 0;
        }
        .emoji-big {
            font-size: 1.8rem;
            vertical-align: middle;
        }
        .text-muted {
            color: #5f7a6e;
        }
        .flex-center {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .gap-1 {
            gap: 1rem;
        }
        .rounded-full {
            border-radius: 999px;
        }