* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, sans-serif;
            line-height: 1.8;
            color: #1e2a3a;
            background: #faf8f5;
            padding: 0;
            margin: 0;
        }
        a {
            color: #c7502b;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #9a3d1f;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        h1,
        h2,
        h3,
        h4 {
            line-height: 1.3;
            letter-spacing: -0.01em;
            color: #1e2a3a;
        }
        h1 {
            font-size: 2.6rem;
            margin-bottom: 0.75rem;
            font-weight: 800;
        }
        h2 {
            font-size: 2rem;
            margin-top: 2.8rem;
            margin-bottom: 0.8rem;
            border-left: 6px solid #c7502b;
            padding-left: 1rem;
            font-weight: 700;
        }
        h3 {
            font-size: 1.5rem;
            margin-top: 2rem;
            margin-bottom: 0.6rem;
            font-weight: 600;
            color: #2c3e50;
        }
        h4 {
            font-size: 1.2rem;
            margin-top: 1.5rem;
            margin-bottom: 0.4rem;
            font-weight: 600;
            color: #34495e;
        }
        p {
            margin-bottom: 1.2rem;
            color: #2c3e50;
        }
        ul,
        ol {
            margin: 0.8rem 0 1.5rem 1.8rem;
            color: #2c3e50;
        }
        li {
            margin-bottom: 0.4rem;
        }
        strong {
            color: #1e2a3a;
            font-weight: 700;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        .site-header {
            background: linear-gradient(145deg, #1e2a3a 0%, #2c3e50 100%);
            color: #fff;
            padding: 0.8rem 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.8rem;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: #f9b84a;
            letter-spacing: -0.03em;
            display: flex;
            align-items: center;
            gap: 0.4rem;
            text-decoration: none;
        }
        .my-logo i {
            color: #f9b84a;
            font-size: 2rem;
        }
        .my-logo:hover {
            color: #ffd966;
            text-decoration: none;
        }
        .my-logo span {
            color: #fff;
            font-weight: 300;
            font-size: 0.9rem;
            margin-left: 0.2rem;
        }
        .nav-menu {
            display: flex;
            gap: 1.2rem;
            align-items: center;
            flex-wrap: wrap;
        }
        .nav-menu a {
            color: #f0ede8;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.3rem 0.6rem;
            border-radius: 6px;
            transition: background 0.2s, color 0.2s;
            text-decoration: none;
        }
        .nav-menu a:hover {
            background: rgba(249, 184, 74, 0.2);
            color: #f9b84a;
            text-decoration: none;
        }
        .nav-menu a i {
            margin-right: 0.3rem;
            font-size: 0.85rem;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #f9b84a;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.2rem 0.4rem;
            transition: transform 0.2s;
        }
        .hamburger:hover {
            transform: scale(1.05);
        }
        .nav-toggle {
            display: none;
        }
        .breadcrumb {
            background: #f0ede8;
            padding: 0.6rem 0;
            font-size: 0.9rem;
            color: #4a5b6e;
            border-bottom: 1px solid #e0d8d0;
        }
        .breadcrumb .container {
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem;
        }
        .breadcrumb a {
            color: #c7502b;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb span {
            color: #6a7b8e;
        }
        .hero {
            background: linear-gradient(135deg, #faf6f0 0%, #f0e8e0 100%);
            padding: 3rem 0 2.5rem;
            border-bottom: 2px solid #e0d8d0;
        }
        .hero .container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2.5rem;
            align-items: center;
        }
        .hero h1 {
            font-size: 2.8rem;
            margin-bottom: 0.5rem;
        }
        .hero h1 i {
            color: #c7502b;
        }
        .hero .subtitle {
            font-size: 1.2rem;
            color: #4a5b6e;
            margin-bottom: 1.2rem;
            font-weight: 400;
        }
        .hero .meta-badge {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            font-size: 0.85rem;
            color: #5a6b7e;
            margin-top: 1rem;
        }
        .hero .meta-badge span {
            background: #fff;
            padding: 0.3rem 0.9rem;
            border-radius: 30px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
        }
        .hero-image {
            border-radius: 16px;
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1);
            width: 100%;
            height: auto;
        }
        .content-area {
            padding: 2.5rem 0 4rem;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 3rem;
        }
        .main-article {
            min-width: 0;
        }
        .sidebar {
            position: sticky;
            top: 6rem;
            align-self: start;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 16px;
            padding: 1.8rem 1.5rem;
            margin-bottom: 2rem;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            border: 1px solid #ede8e2;
        }
        .sidebar-card h3 {
            font-size: 1.3rem;
            margin-top: 0;
            margin-bottom: 1rem;
            border-left: 4px solid #f9b84a;
            padding-left: 0.8rem;
        }
        .sidebar-card ul {
            list-style: none;
            margin-left: 0;
        }
        .sidebar-card ul li {
            padding: 0.5rem 0;
            border-bottom: 1px solid #f0ede8;
        }
        .sidebar-card ul li:last-child {
            border-bottom: none;
        }
        .sidebar-card ul li a {
            color: #2c3e50;
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .sidebar-card ul li a:hover {
            color: #c7502b;
        }
        .feature-box {
            background: #fff8f0;
            border-left: 6px solid #f9b84a;
            padding: 1.8rem 2rem;
            border-radius: 0 16px 16px 0;
            margin: 1.8rem 0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
        }
        .feature-box.info-box {
            background: #eef5fa;
            border-left-color: #2c7da0;
        }
        .feature-box.tip-box {
            background: #f0f7ee;
            border-left-color: #38a169;
        }
        .feature-box.stats-box {
            background: #fdf2f0;
            border-left-color: #c7502b;
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
            font-size: 0.95rem;
            background: #fff;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
        }
        .data-table th {
            background: #1e2a3a;
            color: #fff;
            padding: 0.8rem 1rem;
            text-align: left;
            font-weight: 600;
        }
        .data-table td {
            padding: 0.7rem 1rem;
            border-bottom: 1px solid #ede8e2;
        }
        .data-table tr:nth-child(even) {
            background: #faf8f5;
        }
        .data-table tr:hover {
            background: #f0ede8;
        }
        .interaction-section {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 1.8rem;
            margin: 3rem 0 2rem;
        }
        .interaction-card {
            background: #fff;
            border-radius: 16px;
            padding: 1.8rem 1.5rem;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            border: 1px solid #ede8e2;
        }
        .interaction-card h3 {
            margin-top: 0;
            font-size: 1.2rem;
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .interaction-card h3 i {
            color: #c7502b;
        }
        .interaction-card form {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
        }
        .interaction-card input,
        .interaction-card textarea,
        .interaction-card select {
            padding: 0.7rem 1rem;
            border: 1px solid #dcd5ce;
            border-radius: 8px;
            font-size: 0.95rem;
            font-family: inherit;
            background: #faf8f5;
            transition: border 0.2s;
        }
        .interaction-card input:focus,
        .interaction-card textarea:focus {
            outline: none;
            border-color: #c7502b;
            box-shadow: 0 0 0 3px rgba(199, 80, 43, 0.1);
        }
        .interaction-card textarea {
            min-height: 80px;
            resize: vertical;
        }
        .interaction-card .btn {
            background: #c7502b;
            color: #fff;
            border: none;
            padding: 0.7rem 1.2rem;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            font-size: 0.95rem;
        }
        .interaction-card .btn:hover {
            background: #9a3d1f;
            transform: translateY(-1px);
        }
        .interaction-card .btn:active {
            transform: translateY(0);
        }
        .star-rating {
            display: flex;
            gap: 0.3rem;
            font-size: 1.6rem;
            color: #ddd;
            cursor: pointer;
            direction: rtl;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            transition: color 0.15s;
            color: #ddd;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f9b84a;
        }
        .site-footer {
            background: #1e2a3a;
            color: #d0ccc8;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-grid h4 {
            color: #f9b84a;
            margin-top: 0;
            font-size: 1.1rem;
            margin-bottom: 0.8rem;
        }
        .footer-grid a {
            color: #d0ccc8;
            display: block;
            padding: 0.2rem 0;
            font-size: 0.9rem;
        }
        .footer-grid a:hover {
            color: #f9b84a;
        }
        friend-link {
            display: block;
            margin-top: 0.5rem;
        }
        friend-link a {
            display: inline-block;
            margin-right: 1.2rem;
        }
        .footer-bottom {
            border-top: 1px solid #2c3e50;
            padding-top: 1.2rem;
            text-align: center;
            font-size: 0.85rem;
            color: #8a9aa8;
        }
        .footer-bottom a {
            color: #f9b84a;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                order: 2;
            }
            .hero .container {
                grid-template-columns: 1fr;
                text-align: center;
            }
            .hero .meta-badge {
                justify-content: center;
            }
            .interaction-section {
                grid-template-columns: 1fr 1fr;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
            }
            .nav-menu {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 0.4rem;
                padding: 1rem 0 0.5rem;
                border-top: 1px solid rgba(255, 255, 255, 0.1);
                margin-top: 0.5rem;
            }
            .nav-toggle:checked~.nav-menu {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            .interaction-section {
                grid-template-columns: 1fr;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .container {
                padding: 0 1rem;
            }
            .data-table {
                font-size: 0.85rem;
            }
            .data-table th,
            .data-table td {
                padding: 0.5rem 0.6rem;
            }
            .feature-box {
                padding: 1.2rem 1.2rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 480px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            h1 {
                font-size: 1.6rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            .breadcrumb {
                font-size: 0.8rem;
            }
        }
        .text-small {
            font-size: 0.85rem;
            color: #6a7b8e;
        }
        .mt-2 {
            margin-top: 2rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .flex-center {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .updated-badge {
            display: inline-block;
            background: #f0ede8;
            padding: 0.3rem 1rem;
            border-radius: 30px;
            font-size: 0.85rem;
            color: #4a5b6e;
        }
        .updated-badge i {
            color: #c7502b;
            margin-right: 0.3rem;
        }
        .divider {
            height: 2px;
            background: linear-gradient(to right, transparent, #e0d8d0, transparent);
            margin: 2.5rem 0;
        }