*,
        *::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, 'Helvetica Neue', Arial, sans-serif;
            background: #f7f5f0;
            color: #2c2c2c;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: #b85c2a;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #8a421f;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1120px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(145deg, #1a2a3a 0%, #0f1a26 100%);
            color: #f0e9dc;
            padding: 12px 0;
            border-bottom: 3px solid #b85c2a;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: #f0e9dc;
            text-transform: uppercase;
            background: linear-gradient(135deg, #f0c27f, #b85c2a);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            transition: opacity 0.3s;
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none;
        }
        .my-logo small {
            font-size: 0.7rem;
            letter-spacing: 2px;
            display: block;
            -webkit-text-fill-color: #aabbcc;
            color: #aabbcc;
            font-weight: 400;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #f0e9dc;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 4px 10px;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.08);
        }
        .primary-nav {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            align-items: center;
        }
        .primary-nav a {
            color: #cfd8e3;
            padding: 6px 14px;
            border-radius: 30px;
            font-size: 0.92rem;
            font-weight: 500;
            transition: all 0.25s;
            white-space: nowrap;
        }
        .primary-nav a:hover {
            background: rgba(184, 92, 42, 0.25);
            color: #f0e9dc;
            text-decoration: none;
        }
        .primary-nav a i {
            margin-right: 6px;
            font-size: 0.85rem;
        }
        .breadcrumb {
            background: #ece8e0;
            padding: 10px 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #d6cec0;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 12px;
            color: #8a7a6a;
            font-weight: 700;
        }
        .breadcrumb a {
            color: #6a5a4a;
        }
        .breadcrumb .current {
            color: #b85c2a;
            font-weight: 600;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 40px 0;
        }
        .main-article {
            background: #ffffff;
            border-radius: 18px;
            padding: 40px 42px;
            box-shadow: 0 2px 24px rgba(0, 0, 0, 0.04);
        }
        .main-article h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            color: #0f1a26;
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }
        .main-article h1 i {
            color: #b85c2a;
            margin-right: 10px;
        }
        .meta-info {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 28px;
            color: #6a5a4a;
            font-size: 0.92rem;
            margin-bottom: 28px;
            padding-bottom: 16px;
            border-bottom: 2px solid #f0ebe4;
        }
        .meta-info i {
            margin-right: 6px;
            color: #b85c2a;
        }
        .hero-image {
            border-radius: 16px;
            overflow: hidden;
            margin-bottom: 32px;
            box-shadow: 0 6px 30px rgba(0, 0, 0, 0.08);
        }
        .hero-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }
        .hero-image figcaption {
            background: #f7f5f0;
            padding: 10px 18px;
            font-size: 0.85rem;
            color: #5a4a3a;
            font-style: italic;
        }
        .main-article h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: #0f1a26;
            margin-top: 48px;
            margin-bottom: 16px;
            padding-bottom: 6px;
            border-bottom: 3px solid #b85c2a;
            display: inline-block;
        }
        .main-article h3 {
            font-size: 1.35rem;
            font-weight: 600;
            color: #1a2a3a;
            margin-top: 32px;
            margin-bottom: 12px;
        }
        .main-article h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: #2c3e50;
            margin-top: 24px;
            margin-bottom: 8px;
        }
        .main-article p {
            margin-bottom: 18px;
            font-size: 1.02rem;
            color: #2c2c2c;
        }
        .main-article strong {
            color: #0f1a26;
        }
        .main-article ul,
        .main-article ol {
            margin: 12px 0 20px 24px;
        }
        .main-article li {
            margin-bottom: 8px;
        }
        .highlight-box {
            background: #f7f5f0;
            border-left: 5px solid #b85c2a;
            padding: 20px 26px;
            border-radius: 0 12px 12px 0;
            margin: 24px 0;
        }
        .highlight-box i {
            color: #b85c2a;
            margin-right: 8px;
        }
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
            gap: 18px;
            margin: 24px 0;
        }
        .stat-card {
            background: #f7f5f0;
            border-radius: 14px;
            padding: 20px 16px;
            text-align: center;
            border: 1px solid #e4ddd4;
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .stat-card:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
        }
        .stat-card .number {
            font-size: 2.2rem;
            font-weight: 800;
            color: #b85c2a;
            line-height: 1.2;
        }
        .stat-card .label {
            font-size: 0.9rem;
            color: #5a4a3a;
            margin-top: 4px;
        }
        .inline-link-list {
            background: #f7f5f0;
            border-radius: 12px;
            padding: 18px 22px;
            margin: 24px 0;
        }
        .inline-link-list li {
            margin-bottom: 6px;
        }
        .inline-link-list a {
            font-weight: 500;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .sidebar-card {
            background: #ffffff;
            border-radius: 16px;
            padding: 24px 22px;
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.04);
        }
        .sidebar-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: #0f1a26;
            margin-bottom: 14px;
            border-bottom: 2px solid #f0ebe4;
            padding-bottom: 10px;
        }
        .sidebar-link-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .sidebar-link-list li {
            margin-bottom: 10px;
        }
        .sidebar-link-list a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 6px 0;
            font-weight: 500;
            border-bottom: 1px solid #f0ebe4;
            padding-bottom: 8px;
        }
        .sidebar-link-list a i {
            color: #b85c2a;
            width: 18px;
            text-align: center;
        }
        .interactive-section {
            margin-top: 48px;
            padding-top: 32px;
            border-top: 3px solid #e4ddd4;
        }
        .interactive-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            margin-top: 20px;
        }
        .interactive-card {
            background: #f7f5f0;
            border-radius: 16px;
            padding: 26px 28px;
            border: 1px solid #e4ddd4;
        }
        .interactive-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: #0f1a26;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .interactive-card h3 i {
            color: #b85c2a;
        }
        .form-group {
            margin-bottom: 14px;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            font-size: 0.92rem;
            margin-bottom: 4px;
            color: #2c3e50;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 10px 14px;
            border: 2px solid #d6cec0;
            border-radius: 10px;
            font-size: 0.95rem;
            background: #ffffff;
            transition: border 0.2s;
            font-family: inherit;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            outline: none;
            border-color: #b85c2a;
        }
        .form-group textarea {
            min-height: 80px;
            resize: vertical;
        }
        .btn {
            background: #b85c2a;
            color: #ffffff;
            border: none;
            padding: 10px 28px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all 0.25s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn:hover {
            background: #8a421f;
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(184, 92, 42, 0.3);
        }
        .btn-secondary {
            background: #3a4a5a;
        }
        .btn-secondary:hover {
            background: #1a2a3a;
        }
        .star-rating {
            display: flex;
            gap: 6px;
            font-size: 1.8rem;
            color: #d6cec0;
            cursor: pointer;
            margin: 6px 0 12px;
        }
        .star-rating i {
            transition: color 0.2s, transform 0.15s;
        }
        .star-rating i:hover,
        .star-rating i.active {
            color: #f0c27f;
            transform: scale(1.1);
        }
        .star-rating i.selected {
            color: #f0c27f;
        }
        .site-footer {
            background: #0f1a26;
            color: #cfd8e3;
            padding: 40px 0 24px;
            margin-top: 20px;
            border-top: 4px solid #b85c2a;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 28px;
        }
        .footer-col h4 {
            color: #f0e9dc;
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 14px;
        }
        .footer-col p,
        .footer-col a {
            color: #aabbcc;
            font-size: 0.92rem;
        }
        .footer-col a:hover {
            color: #f0c27f;
        }
        friend-link {
            display: block;
            margin-top: 10px;
        }
        friend-link a {
            display: inline-block;
            margin-right: 16px;
            margin-bottom: 6px;
            color: #aabbcc;
        }
        friend-link a:hover {
            color: #f0c27f;
        }
        .copyright {
            border-top: 1px solid #2a3a4a;
            padding-top: 20px;
            text-align: center;
            font-size: 0.88rem;
            color: #7a8a9a;
        }
        .copyright i {
            margin: 0 4px;
        }
        @media (max-width: 1024px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
            .sidebar {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: nowrap;
            }
            .nav-toggle {
                display: block;
            }
            .primary-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 4px;
                padding: 14px 0 6px;
                border-top: 1px solid rgba(255, 255, 255, 0.06);
                margin-top: 10px;
            }
            .primary-nav.open {
                display: flex;
            }
            .primary-nav a {
                padding: 10px 16px;
                border-radius: 8px;
                width: 100%;
            }
            .main-article {
                padding: 24px 18px;
            }
            .main-article h1 {
                font-size: 1.8rem;
            }
            .main-article h2 {
                font-size: 1.4rem;
            }
            .main-article h3 {
                font-size: 1.15rem;
            }
            .interactive-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .stat-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .meta-info {
                flex-direction: column;
                gap: 6px;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 12px;
            }
            .my-logo {
                font-size: 1.2rem;
            }
            .my-logo small {
                font-size: 0.6rem;
            }
            .main-article {
                padding: 16px 12px;
            }
            .stat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-card .number {
                font-size: 1.6rem;
            }
            .interactive-card {
                padding: 18px 16px;
            }
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }
        .text-small {
            font-size: 0.88rem;
            color: #6a5a4a;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mb-8 {
            margin-bottom: 8px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            gap: 8px;
        }