*,
        *::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, sans-serif;
            background: #f4f7fa;
            color: #1e2a3a;
            line-height: 1.7;
            padding: 0 16px;
        }
        a {
            color: #b8860b;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #d4a017;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        li {
            margin-bottom: 0.4rem;
        }
        h1,
        h2,
        h3,
        h4 {
            line-height: 1.3;
            margin-top: 1.6rem;
            margin-bottom: 0.6rem;
            font-weight: 700;
            color: #0f1a2b;
        }
        h1 {
            font-size: 2.2rem;
            border-left: 6px solid #b8860b;
            padding-left: 1rem;
            margin-top: 0.4rem;
        }
        h2 {
            font-size: 1.7rem;
            border-bottom: 2px solid #e0d5c0;
            padding-bottom: 0.3rem;
        }
        h3 {
            font-size: 1.3rem;
            color: #2c3e50;
        }
        h4 {
            font-size: 1.1rem;
            color: #3d5166;
        }
        p {
            margin-bottom: 1rem;
        }
        strong {
            color: #a67c00;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            background: #ffffff;
            border-radius: 24px 24px 0 0;
            box-shadow: 0 8px 40px rgba(0, 0, 0, 0.06);
            padding: 20px 24px 0;
        }
        .site-header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 16px 0 12px;
            border-bottom: 2px solid #eae3d7;
            position: relative;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(145deg, #b8860b, #d4a017);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: 0 2px 8px rgba(184, 134, 11, 0.2);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .my-logo i {
            -webkit-text-fill-color: initial;
            color: #b8860b;
            font-size: 1.6rem;
        }
        .my-logo a {
            background: none;
            -webkit-text-fill-color: transparent;
            text-decoration: none;
        }
        .my-logo a:hover {
            text-decoration: none;
            opacity: 0.9;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: #1e2a3a;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: #f0ebe3;
        }
        .nav-menu {
            display: flex;
            flex-wrap: wrap;
            gap: 6px 18px;
            align-items: center;
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .nav-menu li a {
            font-weight: 500;
            padding: 6px 4px;
            border-radius: 6px;
            color: #2c3e50;
            font-size: 0.95rem;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .nav-menu li a:hover {
            background: #f0ebe3;
            color: #b8860b;
            text-decoration: none;
        }
        .nav-menu .active a {
            color: #b8860b;
            border-bottom: 2px solid #b8860b;
        }
        .breadcrumb {
            padding: 12px 0 8px;
            font-size: 0.85rem;
            color: #6a7a8a;
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            list-style: none;
            background: transparent;
            margin: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            padding: 0 8px;
            color: #b8860b;
            font-weight: 600;
        }
        .breadcrumb a {
            color: #5a6a7a;
        }
        .breadcrumb a:hover {
            color: #b8860b;
        }
        .breadcrumb li:last-child {
            font-weight: 600;
            color: #1e2a3a;
        }
        .hero-img-wrapper {
            margin: 20px 0 24px;
            border-radius: 18px;
            overflow: hidden;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.08);
            position: relative;
        }
        .hero-img-wrapper img {
            width: 100%;
            max-height: 420px;
            object-fit: cover;
        }
        .hero-img-caption {
            background: rgba(15, 26, 43, 0.75);
            color: #f5f0e8;
            padding: 10px 18px;
            font-size: 0.9rem;
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            backdrop-filter: blur(4px);
        }
        .last-updated {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #f0ebe3;
            padding: 6px 18px 6px 14px;
            border-radius: 40px;
            font-size: 0.8rem;
            color: #4a5a6a;
            margin: 6px 0 12px;
        }
        .last-updated i {
            color: #b8860b;
        }
        .content-area {
            padding: 12px 0 32px;
        }
        .content-area p {
            text-align: justify;
        }
        .insight-box {
            background: #f9f6f0;
            border-left: 6px solid #b8860b;
            padding: 20px 24px;
            border-radius: 0 16px 16px 0;
            margin: 28px 0;
            box-shadow: 0 2px 12px rgba(184, 134, 11, 0.08);
        }
        .insight-box i {
            color: #b8860b;
            margin-right: 8px;
        }
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 16px;
            margin: 24px 0;
        }
        .stat-card {
            background: #f4f7fa;
            border-radius: 16px;
            padding: 20px 16px;
            text-align: center;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
        }
        .stat-card .number {
            font-size: 2rem;
            font-weight: 800;
            color: #b8860b;
        }
        .stat-card .label {
            font-size: 0.85rem;
            color: #5a6a7a;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .form-section {
            background: #f9f6f0;
            border-radius: 20px;
            padding: 24px 28px;
            margin: 36px 0;
            border: 1px solid #e8e0d4;
        }
        .form-section h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .form-group {
            margin-bottom: 16px;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            font-size: 0.9rem;
            margin-bottom: 4px;
            color: #2c3e50;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid #d5cec4;
            border-radius: 12px;
            font-family: inherit;
            font-size: 1rem;
            background: #fff;
            transition: border 0.2s, box-shadow 0.2s;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            outline: none;
            border-color: #b8860b;
            box-shadow: 0 0 0 3px rgba(184, 134, 11, 0.15);
        }
        .form-group textarea {
            min-height: 100px;
            resize: vertical;
        }
        .btn {
            background: #b8860b;
            color: #fff;
            padding: 12px 32px;
            border: none;
            border-radius: 40px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn:hover {
            background: #d4a017;
            transform: scale(1.02);
        }
        .btn-secondary {
            background: #e8e0d4;
            color: #1e2a3a;
        }
        .btn-secondary:hover {
            background: #d5cec4;
        }
        .star-rating {
            display: flex;
            gap: 6px;
            font-size: 1.6rem;
            cursor: pointer;
            color: #d5cec4;
            transition: color 0.15s;
        }
        .star-rating i:hover,
        .star-rating i.active {
            color: #f5b342;
        }
        .star-rating i {
            transition: color 0.15s;
        }
        .site-footer {
            background: #0f1a2b;
            color: #c8d0da;
            padding: 32px 24px 20px;
            border-radius: 24px 24px 0 0;
            margin-top: 32px;
        }
        .site-footer a {
            color: #e0d5c0;
        }
        .site-footer a:hover {
            color: #f5e6c8;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 28px;
            margin-bottom: 24px;
        }
        .footer-grid h4 {
            color: #f5e6c8;
            margin-top: 0;
            font-size: 1.1rem;
        }
        .friend-link {
            display: block;
            padding: 6px 0;
            font-size: 0.9rem;
        }
        .friend-link a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .friend-link i {
            color: #b8860b;
            font-size: 0.75rem;
        }
        .copyright {
            border-top: 1px solid #2a3a4a;
            padding-top: 18px;
            text-align: center;
            font-size: 0.85rem;
            color: #8899aa;
        }
        .copyright strong {
            color: #e0d5c0;
        }
        @media (max-width: 768px) {
            body {
                padding: 0 8px;
            }
            .container {
                padding: 12px 14px 0;
                border-radius: 16px 16px 0 0;
            }
            h1 {
                font-size: 1.6rem;
                padding-left: 0.6rem;
            }
            h2 {
                font-size: 1.3rem;
            }
            h3 {
                font-size: 1.1rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .hamburger {
                display: block;
            }
            .nav-menu {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #fff;
                padding: 12px 0 16px;
                border-top: 1px solid #eae3d7;
                margin-top: 8px;
                gap: 2px;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu li a {
                padding: 10px 14px;
                width: 100%;
                border-radius: 8px;
            }
            .stat-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .form-section {
                padding: 18px 16px;
            }
            .hero-img-caption {
                font-size: 0.75rem;
                padding: 6px 12px;
            }
            .site-footer {
                padding: 24px 16px 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .breadcrumb {
                font-size: 0.75rem;
            }
            .insight-box {
                padding: 16px 18px;
            }
        }
        @media (max-width: 480px) {
            .stat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .stat-card .number {
                font-size: 1.4rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .my-logo {
                font-size: 1.2rem;
            }
            .btn {
                padding: 10px 22px;
                font-size: 0.9rem;
            }
        }
        .scroll-top {
            position: fixed;
            bottom: 28px;
            right: 28px;
            background: #b8860b;
            color: #fff;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            box-shadow: 0 4px 16px rgba(184, 134, 11, 0.3);
            transition: opacity 0.3s, transform 0.2s;
            opacity: 0;
            pointer-events: none;
            z-index: 99;
        }
        .scroll-top.visible {
            opacity: 1;
            pointer-events: all;
        }
        .scroll-top:hover {
            transform: scale(1.08);
            background: #d4a017;
        }
        .schema-hidden {
            display: none;
        }
        .toc {
            background: #f4f7fa;
            border-radius: 16px;
            padding: 18px 22px 18px 32px;
            margin: 20px 0 28px;
            border: 1px solid #e0d5c0;
        }
        .toc summary {
            font-weight: 700;
            font-size: 1.1rem;
            cursor: pointer;
            color: #0f1a2b;
        }
        .toc ol {
            margin-top: 10px;
            padding-left: 1.2rem;
        }
        .toc ol li {
            margin-bottom: 0.3rem;
        }
        .toc ol li a {
            color: #2c3e50;
        }
        .toc ol li a:hover {
            color: #b8860b;
        }
        .badge {
            display: inline-block;
            background: #b8860b;
            color: #fff;
            font-size: 0.65rem;
            font-weight: 700;
            padding: 2px 10px;
            border-radius: 40px;
            letter-spacing: 0.3px;
            text-transform: uppercase;
        }
        .divider {
            height: 2px;
            background: linear-gradient(to right, #e0d5c0, transparent);
            margin: 32px 0;
        }
        blockquote {
            border-left: 4px solid #b8860b;
            padding: 12px 20px;
            background: #f9f6f0;
            border-radius: 0 12px 12px 0;
            margin: 20px 0;
            font-style: italic;
            color: #3d5166;
        }
        blockquote footer {
            font-style: normal;
            font-weight: 600;
            margin-top: 8px;
            color: #1e2a3a;
        }
        .emoji-lg {
            font-size: 1.8rem;
            vertical-align: middle;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 24px 0;
        }
        .table-wrap table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.9rem;
        }
        .table-wrap th,
        .table-wrap td {
            padding: 10px 14px;
            text-align: left;
            border-bottom: 1px solid #e0d5c0;
        }
        .table-wrap th {
            background: #f0ebe3;
            font-weight: 700;
            color: #0f1a2b;
        }
        .table-wrap tr:hover td {
            background: #f9f6f0;
        }