*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            background: #f5f7fa;
            color: #1e293b;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        a {
            color: #0a6e4f;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #064d37;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.5rem;
            margin-bottom: 1.2rem;
        }
        p {
            margin-bottom: 1.2rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            margin-top: 1.8rem;
            margin-bottom: 0.8rem;
            color: #0f172a;
        }
        h1 {
            font-size: 2.4rem;
            margin-top: 0.5rem;
        }
        h2 {
            font-size: 1.9rem;
            border-bottom: 3px solid #0a6e4f;
            padding-bottom: 0.4rem;
        }
        h3 {
            font-size: 1.5rem;
            color: #1e3a5f;
        }
        h4 {
            font-size: 1.2rem;
            color: #2d4a6e;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(145deg, #0f2a3f, #1a3f5c);
            color: #fff;
            padding: 16px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
        }
        .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: #facc15;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .my-logo:hover {
            color: #fde047;
            text-decoration: none;
        }
        .my-logo i {
            font-size: 2rem;
            color: #f97316;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        .nav-menu a {
            color: #e2e8f0;
            padding: 8px 16px;
            border-radius: 40px;
            font-weight: 500;
            font-size: 0.95rem;
            transition: all 0.25s;
        }
        .nav-menu a:hover {
            background: rgba(255, 255, 255, 0.15);
            color: #facc15;
            text-decoration: none;
        }
        .nav-menu a.active {
            background: #facc15;
            color: #0f2a3f;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 4px 10px;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .breadcrumb {
            background: #e9edf2;
            padding: 10px 0;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
            padding: 0;
            margin: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 10px;
            color: #64748b;
            font-weight: 600;
        }
        .breadcrumb a {
            color: #0a6e4f;
        }
        .breadcrumb .current {
            color: #334155;
            font-weight: 600;
        }
        .main-content {
            padding: 40px 0 60px;
        }
        .post-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 30px;
            font-size: 0.95rem;
            color: #475569;
            margin-bottom: 24px;
            padding-bottom: 16px;
            border-bottom: 1px solid #d1d9e6;
        }
        .post-meta i {
            margin-right: 6px;
            color: #0a6e4f;
        }
        .feature-image {
            margin: 24px 0 32px;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
            background: #d9e2ec;
            position: relative;
        }
        .feature-image img {
            width: 100%;
            max-height: 520px;
            object-fit: cover;
        }
        .feature-image .img-caption {
            padding: 12px 20px;
            background: #f1f5f9;
            font-size: 0.9rem;
            color: #334155;
            font-style: italic;
        }
        .section-card {
            background: #fff;
            border-radius: 20px;
            padding: 28px 32px;
            margin-bottom: 32px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
            border: 1px solid #e9edf2;
            transition: box-shadow 0.3s;
        }
        .section-card:hover {
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.07);
        }
        .highlight-box {
            background: #f0fdf4;
            border-left: 6px solid #0a6e4f;
            padding: 18px 24px;
            border-radius: 0 12px 12px 0;
            margin: 20px 0;
        }
        .highlight-box i {
            color: #0a6e4f;
            margin-right: 8px;
        }
        .tip-box {
            background: #fffbeb;
            border-left: 6px solid #f59e0b;
            padding: 18px 24px;
            border-radius: 0 12px 12px 0;
            margin: 20px 0;
        }
        .link-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 12px;
            margin: 20px 0;
        }
        .link-grid a {
            display: block;
            padding: 10px 16px;
            background: #f8fafc;
            border-radius: 10px;
            border: 1px solid #dce3ed;
            font-weight: 500;
            transition: all 0.2s;
        }
        .link-grid a:hover {
            background: #0a6e4f;
            color: #fff;
            border-color: #0a6e4f;
            text-decoration: none;
        }
        .link-grid a i {
            margin-right: 8px;
            color: #f97316;
        }
        .link-grid a:hover i {
            color: #facc15;
        }
        .search-form {
            display: flex;
            gap: 10px;
            max-width: 540px;
            margin: 16px 0;
            flex-wrap: wrap;
        }
        .search-form input {
            flex: 1;
            padding: 14px 20px;
            border: 2px solid #d1d9e6;
            border-radius: 50px;
            font-size: 1rem;
            outline: none;
            transition: border 0.3s;
            min-width: 180px;
        }
        .search-form input:focus {
            border-color: #0a6e4f;
        }
        .search-form button {
            padding: 14px 32px;
            background: #0a6e4f;
            color: #fff;
            border: none;
            border-radius: 50px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .search-form button:hover {
            background: #064d37;
        }
        .comment-form textarea,
        .comment-form input {
            width: 100%;
            padding: 14px 18px;
            border: 2px solid #d1d9e6;
            border-radius: 12px;
            font-size: 1rem;
            outline: none;
            transition: border 0.3s;
            margin-bottom: 14px;
            font-family: inherit;
            resize: vertical;
        }
        .comment-form textarea:focus,
        .comment-form input:focus {
            border-color: #0a6e4f;
        }
        .comment-form .form-row {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .comment-form .form-row input {
            flex: 1;
            min-width: 160px;
        }
        .btn-primary {
            padding: 14px 36px;
            background: #0a6e4f;
            color: #fff;
            border: none;
            border-radius: 50px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-primary:hover {
            background: #064d37;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 4px;
            font-size: 1.8rem;
            margin: 10px 0 18px;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            color: #cbd5e1;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f59e0b;
        }
        .site-footer {
            background: #0f2a3f;
            color: #cbd5e1;
            padding: 40px 0 24px;
            margin-top: 40px;
        }
        .site-footer a {
            color: #94a3b8;
        }
        .site-footer a:hover {
            color: #facc15;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 32px;
            margin-bottom: 28px;
        }
        .footer-grid h4 {
            color: #f1f5f9;
            font-size: 1.1rem;
            margin-top: 0;
            border-bottom: 2px solid #1e3a5f;
            padding-bottom: 8px;
        }
        .footer-grid ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-grid li {
            margin-bottom: 8px;
        }
        .footer-grid li a {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .friend-link {
            display: block;
            padding: 8px 14px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 8px;
            margin-bottom: 6px;
            font-size: 0.95rem;
            transition: background 0.2s;
        }
        .friend-link:hover {
            background: rgba(255, 255, 255, 0.12);
            text-decoration: none;
        }
        .copyright {
            border-top: 1px solid #1e3a5f;
            padding-top: 20px;
            text-align: center;
            font-size: 0.9rem;
            color: #64748b;
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            h3 {
                font-size: 1.25rem;
            }
            .section-card {
                padding: 18px 16px;
            }
            .header-inner {
                gap: 10px;
            }
            .nav-menu {
                display: none;
                width: 100%;
                flex-direction: column;
                background: #1a3f5c;
                padding: 16px 12px;
                border-radius: 16px;
                margin-top: 10px;
                gap: 4px;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu a {
                padding: 12px 18px;
                width: 100%;
                border-radius: 10px;
            }
            .hamburger {
                display: block;
            }
            .breadcrumb ol {
                font-size: 0.8rem;
                gap: 4px 8px;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                width: 100%;
                justify-content: center;
            }
            .link-grid {
                grid-template-columns: 1fr;
            }
            .post-meta {
                font-size: 0.85rem;
                gap: 10px;
            }
            .feature-image img {
                max-height: 260px;
            }
            .star-rating {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }
        @media (min-width: 769px) and (max-width: 1024px) {
            .link-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .section-card {
                padding: 24px 24px;
            }
        }
        .text-muted {
            color: #64748b;
            font-size: 0.9rem;
        }
        .flex-between {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
        }
        .mt-0 {
            margin-top: 0;
        }
        .mb-0 {
            margin-bottom: 0;
        }
        ::selection {
            background: #0a6e4f;
            color: #fff;
        }
        :focus-visible {
            outline: 3px solid #facc15;
            outline-offset: 2px;
        }
        .skip-link {
            position: absolute;
            top: -100px;
            left: 16px;
            background: #facc15;
            color: #0f2a3f;
            padding: 12px 24px;
            border-radius: 8px;
            font-weight: 600;
            z-index: 9999;
        }
        .skip-link:focus {
            top: 16px;
        }