* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            background: #fafaf8;
            color: #1e2a2e;
            line-height: 1.7;
            padding: 0;
        }
        a {
            color: #b8860b;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #8b6508;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul,
        ol {
            padding-left: 1.8rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.2rem;
        }
        h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: #1e2a2e;
            letter-spacing: -0.02em;
            line-height: 1.2;
            margin-bottom: 1.2rem;
            border-left: 6px solid #b8860b;
            padding-left: 1.2rem;
        }
        h2 {
            font-size: 2rem;
            font-weight: 700;
            color: #2a3a3e;
            margin-top: 3.2rem;
            margin-bottom: 1rem;
            border-bottom: 2px solid #e8dcc8;
            padding-bottom: 0.5rem;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 600;
            color: #3a4a4e;
            margin-top: 2.2rem;
            margin-bottom: 0.8rem;
        }
        h4 {
            font-size: 1.2rem;
            font-weight: 600;
            color: #4a5a5e;
            margin-top: 1.5rem;
            margin-bottom: 0.5rem;
        }
        p {
            margin-bottom: 1.2rem;
        }
        .lead {
            font-size: 1.25rem;
            font-weight: 300;
            color: #2a3a3e;
            background: #f0ede6;
            padding: 1.2rem 1.8rem;
            border-radius: 12px;
            border-left: 4px solid #b8860b;
        }
        strong {
            color: #1e2a2e;
            font-weight: 700;
        }
        .highlight {
            background: #fcf6e8;
            padding: 0.1rem 0.4rem;
            border-radius: 4px;
        }
        .site-header {
            background: #1e2a2e;
            color: #f5f0e8;
            padding: 0.8rem 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: 1.6rem;
            font-weight: 800;
            color: #f5f0e8;
            letter-spacing: -0.02em;
            transition: opacity 0.2s;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .my-logo i {
            color: #b8860b;
            font-size: 1.8rem;
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none;
            color: #f5f0e8;
        }
        .my-logo span {
            font-weight: 300;
            color: #b8860b;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #f5f0e8;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.2rem 0.6rem;
            transition: transform 0.2s;
        }
        .nav-toggle:hover {
            transform: scale(1.1);
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 1.2rem;
            flex-wrap: wrap;
        }
        .nav-menu a {
            color: #d4cfc6;
            font-weight: 500;
            font-size: 0.92rem;
            padding: 0.3rem 0.6rem;
            border-radius: 6px;
            transition: background 0.2s, color 0.2s;
        }
        .nav-menu a:hover {
            background: rgba(255, 255, 255, 0.08);
            color: #f5f0e8;
            text-decoration: none;
        }
        .nav-menu a.active {
            color: #b8860b;
            background: rgba(184, 134, 11, 0.15);
        }
        .breadcrumb {
            background: #f0ede6;
            padding: 0.6rem 1.2rem;
            border-radius: 8px;
            margin: 1.2rem 0 1.8rem 0;
            font-size: 0.9rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.4rem;
        }
        .breadcrumb a {
            color: #5a6a6e;
        }
        .breadcrumb a:hover {
            color: #b8860b;
        }
        .breadcrumb .sep {
            color: #9a9a92;
            margin: 0 0.2rem;
        }
        .breadcrumb .current {
            color: #1e2a2e;
            font-weight: 600;
        }
        .card {
            background: #ffffff;
            border-radius: 16px;
            padding: 1.8rem 2rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
            margin-bottom: 2rem;
            border: 1px solid #ece8e0;
            transition: box-shadow 0.2s;
        }
        .card:hover {
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.07);
        }
        .data-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1.2rem;
            margin: 1.5rem 0;
        }
        .data-item {
            background: #f8f6f2;
            padding: 1.2rem;
            border-radius: 12px;
            text-align: center;
            border: 1px solid #e8e0d6;
        }
        .data-item .num {
            font-size: 2.2rem;
            font-weight: 800;
            color: #b8860b;
        }
        .data-item .label {
            font-size: 0.9rem;
            color: #5a6a6e;
            margin-top: 0.2rem;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.5rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
        }
        th,
        td {
            padding: 0.8rem 1rem;
            text-align: left;
            border-bottom: 1px solid #e8e0d6;
        }
        th {
            background: #1e2a2e;
            color: #f5f0e8;
            font-weight: 600;
        }
        tr:nth-child(even) {
            background: #f8f6f2;
        }
        tr:hover td {
            background: #f0ede6;
        }
        .form-group {
            margin-bottom: 1.2rem;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 0.3rem;
            color: #2a3a3e;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 2px solid #e0d8ce;
            border-radius: 8px;
            font-size: 1rem;
            font-family: inherit;
            background: #fff;
            transition: border-color 0.2s;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            outline: none;
            border-color: #b8860b;
        }
        .form-group textarea {
            min-height: 100px;
            resize: vertical;
        }
        .btn {
            display: inline-block;
            padding: 0.7rem 1.8rem;
            background: #b8860b;
            color: #fff;
            border: none;
            border-radius: 8px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
        }
        .btn:hover {
            background: #9a7209;
            transform: translateY(-1px);
        }
        .btn-outline {
            background: transparent;
            color: #b8860b;
            border: 2px solid #b8860b;
        }
        .btn-outline:hover {
            background: #b8860b;
            color: #fff;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.2rem;
            font-size: 2rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            cursor: pointer;
            color: #d4cfc6;
            transition: color 0.15s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f5b342;
        }
        .comment-list {
            margin-top: 1.5rem;
        }
        .comment-item {
            background: #f8f6f2;
            padding: 1rem 1.4rem;
            border-radius: 12px;
            margin-bottom: 1rem;
            border-left: 4px solid #b8860b;
        }
        .comment-item .meta {
            font-size: 0.85rem;
            color: #7a8a8e;
            margin-bottom: 0.4rem;
        }
        .comment-item .name {
            font-weight: 600;
            color: #1e2a2e;
        }
        .site-footer {
            background: #1e2a2e;
            color: #c4bfb6;
            padding: 2.8rem 0 1.5rem 0;
            margin-top: 3.5rem;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2rem;
        }
        .footer-inner h4 {
            color: #f5f0e8;
            margin-top: 0;
            margin-bottom: 1rem;
            font-size: 1.1rem;
        }
        .footer-inner a {
            color: #b8860b;
        }
        .footer-inner a:hover {
            color: #d4a835;
        }
        .friend-link {
            display: block;
            margin-top: 1.5rem;
            padding: 1.2rem 1.8rem;
            background: rgba(255, 255, 255, 0.04);
            border-radius: 12px;
            border: 1px solid rgba(255, 255, 255, 0.06);
        }
        .friend-link a {
            display: inline-block;
            margin-right: 1.8rem;
            margin-bottom: 0.3rem;
        }
        .copyright {
            text-align: center;
            padding-top: 1.8rem;
            margin-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.9rem;
            color: #8a9a9e;
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2rem;
                padding-left: 0.8rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            h3 {
                font-size: 1.25rem;
            }
            .header-inner {
                flex-wrap: wrap;
            }
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                padding: 1rem 0 0.5rem 0;
                gap: 0.6rem;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu a {
                width: 100%;
                padding: 0.5rem 0.8rem;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .data-grid {
                grid-template-columns: 1fr 1fr;
            }
            .container {
                padding: 0 0.9rem;
            }
            .card {
                padding: 1.2rem 1.2rem;
            }
            .breadcrumb {
                font-size: 0.8rem;
                padding: 0.4rem 0.8rem;
            }
            .lead {
                font-size: 1.05rem;
                padding: 1rem 1.2rem;
            }
        }
        @media (max-width: 480px) {
            .data-grid {
                grid-template-columns: 1fr;
            }
            h1 {
                font-size: 1.7rem;
            }
            .my-logo {
                font-size: 1.2rem;
            }
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mt-2 {
            margin-top: 2rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .mb-2 {
            margin-bottom: 2rem;
        }
        .flex-center {
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .gap-1 {
            gap: 1rem;
        }
        .text-center {
            text-align: center;
        }
        .tag {
            display: inline-block;
            background: #e8dcc8;
            padding: 0.2rem 0.8rem;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            color: #1e2a2e;
        }
        .feature-img {
            border-radius: 16px;
            margin: 1.8rem 0;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
        }
        .schema-hidden {
            display: none;
        }