* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            background: #f8f7f4;
            color: #1e1e2a;
            line-height: 1.7;
            font-size: 16px;
        }
        a {
            color: #2b5f8a;
            text-decoration: underline;
            text-underline-offset: 2px;
            transition: color 0.2s;
        }
        a:hover {
            color: #c44536;
        }
        .container {
            max-width: 1120px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: #1e1e2a;
            color: #f8f7f4;
            padding: 16px 0;
            border-bottom: 4px solid #d4a373;
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: #f8f7f4;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .my-logo i {
            color: #d4a373;
            font-size: 1.6rem;
        }
        .my-logo span {
            background: linear-gradient(135deg, #d4a373, #e6c9a8);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .my-logo small {
            font-size: 0.7rem;
            font-weight: 400;
            opacity: 0.7;
            -webkit-text-fill-color: #aaa;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid #d4a373;
            color: #d4a373;
            font-size: 1.6rem;
            padding: 6px 14px;
            border-radius: 6px;
            cursor: pointer;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(212, 163, 115, 0.15);
        }
        .main-nav {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            align-items: center;
        }
        .main-nav a {
            color: #ddd;
            text-decoration: none;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 6px 0;
            border-bottom: 2px solid transparent;
            transition: border-color 0.2s, color 0.2s;
        }
        .main-nav a:hover {
            color: #d4a373;
            border-bottom-color: #d4a373;
        }
        .main-nav .active {
            color: #d4a373;
            border-bottom-color: #d4a373;
        }
        .breadcrumb-wrap {
            background: #f0ede8;
            padding: 10px 0;
            font-size: 0.85rem;
            border-bottom: 1px solid #ddd6cc;
        }
        .breadcrumb-wrap ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
        }
        .breadcrumb-wrap li+li::before {
            content: "›";
            margin-right: 12px;
            color: #999;
        }
        .breadcrumb-wrap a {
            color: #2b5f8a;
            text-decoration: none;
        }
        .breadcrumb-wrap a:hover {
            text-decoration: underline;
        }
        .breadcrumb-wrap .current {
            color: #555;
            font-weight: 500;
        }
        .hero {
            background: linear-gradient(145deg, #1e1e2a 0%, #2a2a3e 100%);
            color: #f8f7f4;
            padding: 48px 0 40px;
            text-align: center;
        }
        .hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            line-height: 1.2;
        }
        .hero h1 i {
            color: #d4a373;
            margin-right: 10px;
        }
        .hero p {
            font-size: 1.15rem;
            margin-top: 12px;
            opacity: 0.85;
            max-width: 680px;
            margin-left: auto;
            margin-right: auto;
        }
        .hero .last-updated {
            display: inline-block;
            margin-top: 18px;
            font-size: 0.8rem;
            background: rgba(212, 163, 115, 0.2);
            padding: 6px 18px;
            border-radius: 30px;
            border: 1px solid rgba(212, 163, 115, 0.3);
        }
        .content-wrap {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 40px 0;
        }
        .main-content h2 {
            font-size: 1.9rem;
            font-weight: 700;
            margin-top: 48px;
            margin-bottom: 16px;
            color: #1e1e2a;
            border-left: 5px solid #d4a373;
            padding-left: 16px;
        }
        .main-content h2:first-of-type {
            margin-top: 0;
        }
        .main-content h3 {
            font-size: 1.4rem;
            font-weight: 600;
            margin-top: 32px;
            margin-bottom: 10px;
            color: #2a2a3e;
        }
        .main-content h4 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-top: 24px;
            margin-bottom: 8px;
            color: #3a3a4e;
        }
        .main-content p {
            margin-bottom: 18px;
            font-size: 1rem;
            color: #2c2c38;
        }
        .main-content p strong {
            color: #1e1e2a;
        }
        .feature-img {
            margin: 28px 0;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
        }
        .feature-img img {
            width: 100%;
            height: auto;
            display: block;
        }
        .feature-img figcaption {
            background: #f0ede8;
            padding: 10px 16px;
            font-size: 0.85rem;
            color: #555;
        }
        .insight-box {
            background: #f0ede8;
            border-left: 5px solid #d4a373;
            padding: 20px 24px;
            border-radius: 0 12px 12px 0;
            margin: 24px 0;
        }
        .insight-box i {
            color: #d4a373;
            margin-right: 6px;
        }
        .link-list-inline {
            display: inline;
            font-weight: 500;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 24px 0;
        }
        .table-wrap table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
            background: #fff;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
        }
        .table-wrap th {
            background: #1e1e2a;
            color: #f8f7f4;
            padding: 12px 16px;
            text-align: left;
            font-weight: 600;
        }
        .table-wrap td {
            padding: 10px 16px;
            border-bottom: 1px solid #eee;
        }
        .table-wrap tr:last-child td {
            border-bottom: none;
        }
        .table-wrap tr:hover td {
            background: #f9f6f0;
        }
        .sidebar {
            position: sticky;
            top: 120px;
            align-self: start;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 12px;
            padding: 20px 22px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
            margin-bottom: 24px;
            border: 1px solid #e8e2da;
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: #1e1e2a;
            border-bottom: 2px solid #d4a373;
            padding-bottom: 8px;
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
        }
        .sidebar-card li {
            margin-bottom: 8px;
        }
        .sidebar-card li a {
            font-size: 0.92rem;
            display: block;
            padding: 4px 0;
        }
        .sidebar-card li a:hover {
            padding-left: 4px;
        }
        .search-form {
            display: flex;
            gap: 8px;
            margin: 24px 0;
        }
        .search-form input {
            flex: 1;
            padding: 12px 18px;
            border: 2px solid #ddd6cc;
            border-radius: 8px;
            font-size: 1rem;
            background: #fff;
            transition: border-color 0.2s;
        }
        .search-form input:focus {
            outline: none;
            border-color: #d4a373;
        }
        .search-form button {
            padding: 12px 24px;
            background: #1e1e2a;
            color: #f8f7f4;
            border: none;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
        }
        .search-form button:hover {
            background: #d4a373;
        }
        .interaction-section {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin: 40px 0;
        }
        .interaction-card {
            background: #fff;
            border-radius: 12px;
            padding: 22px 26px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
            border: 1px solid #e8e2da;
        }
        .interaction-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 14px;
            color: #1e1e2a;
        }
        .interaction-card form {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .interaction-card textarea,
        .interaction-card input,
        .interaction-card select {
            padding: 10px 14px;
            border: 2px solid #ddd6cc;
            border-radius: 8px;
            font-size: 0.95rem;
            font-family: inherit;
            background: #fafaf9;
            transition: border-color 0.2s;
        }
        .interaction-card textarea:focus,
        .interaction-card input:focus,
        .interaction-card select:focus {
            outline: none;
            border-color: #d4a373;
        }
        .interaction-card textarea {
            min-height: 80px;
            resize: vertical;
        }
        .interaction-card button {
            padding: 12px 20px;
            background: #1e1e2a;
            color: #f8f7f4;
            border: none;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
            align-self: flex-start;
        }
        .interaction-card button:hover {
            background: #d4a373;
        }
        .rating-stars {
            display: flex;
            gap: 6px;
            font-size: 1.6rem;
            color: #ddd6cc;
            cursor: pointer;
        }
        .rating-stars i.active {
            color: #d4a373;
        }
        .rating-stars i:hover,
        .rating-stars i.hover {
            color: #d4a373;
        }
        .site-footer {
            background: #1e1e2a;
            color: #ccc;
            padding: 40px 0 24px;
            margin-top: 40px;
            border-top: 4px solid #d4a373;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 28px;
        }
        .footer-grid h4 {
            color: #d4a373;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .footer-grid a {
            color: #bbb;
            text-decoration: none;
            display: block;
            margin-bottom: 6px;
            font-size: 0.9rem;
        }
        .footer-grid a:hover {
            color: #d4a373;
        }
        friend-link {
            display: block;
            margin-top: 8px;
        }
        friend-link a {
            display: inline;
            margin: 0 4px 0 0;
        }
        .copyright {
            border-top: 1px solid #333;
            padding-top: 20px;
            text-align: center;
            font-size: 0.82rem;
            color: #888;
        }
        .copyright strong {
            color: #ccc;
        }
        @media (max-width: 900px) {
            .content-wrap {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .sidebar {
                position: static;
                order: 2;
            }
            .interaction-section {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .hero h1 {
                font-size: 2rem;
            }
        }
        @media (max-width: 680px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 8px;
                padding: 16px 0 8px;
                border-top: 1px solid rgba(255, 255, 255, 0.1);
                margin-top: 8px;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 8px 0;
                font-size: 1rem;
            }
            .header-inner {
                align-items: center;
            }
            .hero h1 {
                font-size: 1.6rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                width: 100%;
            }
            .interaction-card button {
                width: 100%;
            }
            .my-logo {
                font-size: 1.4rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 14px;
            }
            .hero {
                padding: 32px 0 28px;
            }
            .hero h1 {
                font-size: 1.4rem;
            }
            .main-content h2 {
                font-size: 1.5rem;
            }
            .main-content h3 {
                font-size: 1.2rem;
            }
            .breadcrumb-wrap {
                font-size: 0.75rem;
            }
            .sidebar-card {
                padding: 16px;
            }
        }