*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: #f5f0eb;
            color: #2d2a24;
            line-height: 1.75;
            padding: 0 16px;
            max-width: 1280px;
            margin: 0 auto;
        }
        a {
            color: #1e6f5c;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover,
        a:focus {
            color: #0e3d32;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.5rem;
            margin: 1rem 0;
        }
        li {
            margin-bottom: 0.5rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: #1e3d2f;
            margin-top: 2rem;
            margin-bottom: 0.75rem;
        }
        h1 {
            font-size: 2.4rem;
            margin-top: 1rem;
        }
        h2 {
            font-size: 1.9rem;
            border-left: 6px solid #2b8a6e;
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.45rem;
            color: #2b6b56;
        }
        h4 {
            font-size: 1.2rem;
            color: #3d5a4c;
        }
        p {
            margin-bottom: 1.25rem;
            font-size: 1.05rem;
        }
        strong,
        b {
            color: #1e4a3a;
        }
        blockquote {
            background: #e8e0d6;
            border-left: 5px solid #2b8a6e;
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 12px 12px 0;
            font-style: italic;
            color: #3d352a;
        }
        hr {
            border: none;
            border-top: 2px dashed #c4b8a8;
            margin: 2.5rem 0;
        }
        header {
            padding: 1rem 0 0.5rem 0;
            border-bottom: 3px solid #2b8a6e;
            margin-bottom: 1.5rem;
            background: #faf7f3;
            border-radius: 0 0 16px 16px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
        }
        .header-inner {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 0.25rem 1rem;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            color: #1e3d2f;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #1e6f5c, #2b8a6e);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .my-logo i {
            -webkit-text-fill-color: #2b8a6e;
            font-size: 1.8rem;
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 0.25rem;
            flex-wrap: wrap;
            padding: 0;
            margin: 0;
        }
        .nav-list li a {
            display: block;
            padding: 0.5rem 1rem;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.95rem;
            color: #2d2a24;
            background: transparent;
            transition: background 0.2s, color 0.2s;
        }
        .nav-list li a:hover {
            background: #2b8a6e;
            color: #fff;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            background: none;
            border: none;
            color: #1e3d2f;
            padding: 0.25rem 0.5rem;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: #e0d6ca;
        }
        .breadcrumb {
            padding: 0.75rem 1rem 0.25rem 1rem;
            font-size: 0.9rem;
            color: #6b5e4e;
            display: flex;
            flex-wrap: wrap;
            gap: 0.25rem 0.5rem;
            list-style: none;
        }
        .breadcrumb li {
            display: inline;
            margin: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.4rem;
            color: #a89884;
            font-weight: 700;
        }
        .breadcrumb a {
            color: #2b6b56;
        }
        .breadcrumb .current {
            color: #6b5e4e;
            font-weight: 500;
        }
        .search-section {
            background: #e8e0d6;
            padding: 1.25rem 1.5rem;
            border-radius: 16px;
            margin: 1.5rem 0 2rem 0;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.75rem;
        }
        .search-section label {
            font-weight: 700;
            color: #1e3d2f;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .search-section input[type="text"] {
            flex: 1 1 220px;
            padding: 0.65rem 1rem;
            border: 2px solid #c4b8a8;
            border-radius: 30px;
            font-size: 1rem;
            background: #fff;
            outline: none;
            transition: border 0.2s;
            min-width: 160px;
        }
        .search-section input[type="text"]:focus {
            border-color: #2b8a6e;
        }
        .search-section button {
            background: #2b8a6e;
            color: #fff;
            border: none;
            padding: 0.65rem 1.5rem;
            border-radius: 30px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .search-section button:hover {
            background: #1e6f5c;
            transform: scale(1.02);
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
        }
        .main-article {
            background: #fffcf9;
            padding: 1.8rem 2rem;
            border-radius: 20px;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.05);
        }
        .featured-image {
            margin: 1.5rem 0 2rem 0;
            border-radius: 14px;
            overflow: hidden;
            background: #e0d6ca;
            box-shadow: 0 6px 18px rgba(0, 0, 0, 0.08);
        }
        .featured-image img {
            width: 100%;
            max-height: 460px;
            object-fit: cover;
        }
        .featured-image figcaption {
            padding: 0.75rem 1rem;
            font-size: 0.9rem;
            color: #4a3f32;
            background: #f0e8de;
            font-style: italic;
        }
        .last-updated {
            display: inline-block;
            background: #e0d6ca;
            padding: 0.3rem 1rem;
            border-radius: 30px;
            font-size: 0.85rem;
            color: #4a3f32;
            margin-bottom: 1rem;
        }
        .last-updated i {
            margin-right: 6px;
            color: #2b6b56;
        }
        .toc {
            background: #f0ebe4;
            padding: 1.25rem 1.75rem;
            border-radius: 16px;
            margin: 1.5rem 0 2.5rem 0;
            border: 1px solid #d6cbbc;
        }
        .toc h3 {
            margin-top: 0;
            font-size: 1.3rem;
        }
        .toc ol {
            margin: 0.5rem 0 0 0;
            padding-left: 1.25rem;
            columns: 1;
        }
        .toc li {
            margin-bottom: 0.4rem;
        }
        .toc a {
            color: #1e6f5c;
            font-weight: 500;
        }
        .link-list-inline {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem 1rem;
            list-style: none;
            padding: 0;
            margin: 1.5rem 0;
            background: #f5f0eb;
            padding: 1rem 1.25rem;
            border-radius: 14px;
        }
        .link-list-inline li a {
            background: #fff;
            padding: 0.3rem 1rem;
            border-radius: 30px;
            border: 1px solid #d6cbbc;
            font-size: 0.9rem;
            font-weight: 500;
            transition: all 0.2s;
            display: inline-block;
        }
        .link-list-inline li a:hover {
            background: #2b8a6e;
            color: #fff;
            border-color: #2b8a6e;
            text-decoration: none;
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
            margin: 2.5rem 0 1.5rem 0;
        }
        .feedback-card {
            background: #f5f0eb;
            padding: 1.5rem 1.75rem;
            border-radius: 18px;
            border: 1px solid #e0d6ca;
        }
        .feedback-card h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.25rem;
        }
        .feedback-card form {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
            margin-top: 0.75rem;
        }
        .feedback-card input,
        .feedback-card textarea,
        .feedback-card select {
            padding: 0.6rem 1rem;
            border: 2px solid #d6cbbc;
            border-radius: 12px;
            font-size: 1rem;
            font-family: inherit;
            background: #fff;
            outline: none;
            transition: border 0.2s;
        }
        .feedback-card input:focus,
        .feedback-card textarea:focus,
        .feedback-card select:focus {
            border-color: #2b8a6e;
        }
        .feedback-card textarea {
            min-height: 80px;
            resize: vertical;
        }
        .feedback-card button {
            background: #2b8a6e;
            color: #fff;
            border: none;
            padding: 0.65rem 1.25rem;
            border-radius: 30px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            align-self: flex-start;
        }
        .feedback-card button:hover {
            background: #1e6f5c;
            transform: scale(1.02);
        }
        .rating-stars {
            display: flex;
            gap: 0.25rem;
            font-size: 1.5rem;
            color: #d4c5b0;
            cursor: pointer;
            direction: rtl;
        }
        .rating-stars i {
            transition: color 0.15s;
        }
        .rating-stars i:hover,
        .rating-stars i:hover~i {
            color: #e8b84b;
        }
        .rating-stars input {
            display: none;
        }
        .rating-stars label {
            cursor: pointer;
            color: #d4c5b0;
            transition: color 0.15s;
        }
        .rating-stars label:hover,
        .rating-stars label:hover~label {
            color: #e8b84b;
        }
        .rating-stars input:checked~label {
            color: #e8b84b;
        }
        footer {
            margin-top: 3rem;
            padding: 2rem 1.5rem 1.5rem 1.5rem;
            background: #1e3d2f;
            color: #e8e0d6;
            border-radius: 20px 20px 0 0;
        }
        footer a {
            color: #a8d4c4;
        }
        footer a:hover {
            color: #d4ede2;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
        }
        .footer-col h4 {
            color: #c4e0d4;
            margin-top: 0;
            font-size: 1.15rem;
            border-bottom: 2px solid #2b6b56;
            padding-bottom: 0.4rem;
            display: inline-block;
        }
        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem 1rem;
            list-style: none;
            padding: 0;
            margin: 0.75rem 0 0 0;
        }
        .friend-links li a {
            font-size: 0.95rem;
            background: rgba(255, 255, 255, 0.06);
            padding: 0.2rem 0.8rem;
            border-radius: 30px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: all 0.2s;
        }
        .friend-links li a:hover {
            background: rgba(255, 255, 255, 0.15);
            text-decoration: none;
            border-color: #2b8a6e;
        }
        .copyright {
            grid-column: 1 / -1;
            text-align: center;
            padding-top: 1.5rem;
            margin-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.9rem;
            color: #a8c4b8;
        }
        .copyright strong {
            color: #d4ede2;
        }
        @media (max-width: 820px) {
            .feedback-grid {
                grid-template-columns: 1fr;
            }
            .footer-inner {
                grid-template-columns: 1fr;
            }
            .header-inner {
                padding: 0.25rem 0.25rem;
            }
            .my-logo {
                font-size: 1.5rem;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #faf7f3;
                padding: 0.75rem 0.5rem;
                border-radius: 16px;
                box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
                margin-top: 0.75rem;
            }
            .nav-list.show {
                display: flex;
            }
            .nav-list li a {
                padding: 0.6rem 1rem;
                border-radius: 12px;
            }
            .hamburger {
                display: block;
            }
            .nav-wrapper {
                flex-wrap: wrap;
                width: 100%;
                justify-content: flex-end;
            }
            .toc ol {
                columns: 1;
            }
            h1 {
                font-size: 1.9rem;
            }
            h2 {
                font-size: 1.5rem;
                padding-left: 0.75rem;
            }
            .main-article {
                padding: 1.25rem 1rem;
            }
            .search-section {
                flex-direction: column;
                align-items: stretch;
            }
            .search-section button {
                align-self: center;
            }
            .link-list-inline {
                padding: 0.75rem 1rem;
            }
            body {
                padding: 0 10px;
            }
        }
        @media (max-width: 480px) {
            .my-logo {
                font-size: 1.25rem;
            }
            .my-logo i {
                font-size: 1.3rem;
            }
            h1 {
                font-size: 1.6rem;
            }
            h2 {
                font-size: 1.3rem;
            }
            .feedback-card {
                padding: 1rem 1.2rem;
            }
            .breadcrumb {
                font-size: 0.8rem;
                padding: 0.5rem 0.5rem 0.25rem 0.5rem;
            }
        }
        @media (min-width: 900px) {
            .toc ol {
                columns: 2;
                column-gap: 2.5rem;
            }
        }
        .text-highlight {
            background: linear-gradient(to right, #e8f0e8, #d4e8dc);
            padding: 0.1rem 0.4rem;
            border-radius: 6px;
            font-weight: 600;
        }
        .emoji-lg {
            font-size: 1.3em;
            margin-right: 4px;
        }
        .flex-list {
            display: flex;
            flex-wrap: wrap;
            gap: 0.25rem 1.2rem;
            list-style: none;
            padding: 0;
            margin: 1rem 0;
        }
        .flex-list li::before {
            content: "🕷️";
            margin-right: 6px;
            font-size: 0.85rem;
        }
        .btn-top {
            display: inline-block;
            background: #2b8a6e;
            color: #fff;
            padding: 0.4rem 1.2rem;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: background 0.2s;
            margin-top: 0.5rem;
        }
        .btn-top:hover {
            background: #1e6f5c;
            text-decoration: none;
            color: #fff;
        }
        .stat-badge {
            display: inline-block;
            background: #2b8a6e;
            color: #fff;
            padding: 0.2rem 1rem;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 700;
            margin-right: 0.5rem;
        }