*,
        *::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, BlinkMacSystemFont, sans-serif;
            background: #fafaf8;
            color: #1e2a2f;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        a {
            color: #b45309;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #7a2e03;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        h1 {
            font-size: 2.4rem;
            font-weight: 800;
            color: #1e2a2f;
            line-height: 1.2;
            margin-bottom: 0.5rem;
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: #2d3f47;
            margin-top: 2.5rem;
            margin-bottom: 1rem;
            border-left: 5px solid #b45309;
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.35rem;
            font-weight: 600;
            color: #3a505a;
            margin-top: 1.8rem;
            margin-bottom: 0.6rem;
        }
        h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: #4a6572;
            margin-top: 1.2rem;
            margin-bottom: 0.4rem;
        }
        p {
            margin-bottom: 1.1rem;
            font-size: 1.02rem;
            color: #2c3e44;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 400;
            color: #3d535c;
            margin-bottom: 1.8rem;
        }
        strong {
            color: #1e2a2f;
            font-weight: 700;
        }
        .site-header {
            background: linear-gradient(145deg, #1e2a2f 0%, #2d3f47 100%);
            color: #fff;
            padding: 0.8rem 0;
            position: sticky;
            top: 0;
            z-index: 100;
            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;
            gap: 0.8rem;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: #fbbf24;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .my-logo i {
            color: #f59e0b;
            font-size: 1.7rem;
        }
        .my-logo:hover {
            color: #fcd34d;
            text-decoration: none;
        }
        .my-logo small {
            font-size: 0.7rem;
            font-weight: 400;
            color: #d1d5db;
            display: block;
            letter-spacing: 0.3px;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 1.2rem;
            flex-wrap: wrap;
            list-style: none;
        }
        .nav-menu li a {
            color: #e2e8f0;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.4rem 0.6rem;
            border-radius: 6px;
            transition: background 0.2s, color 0.2s;
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }
        .nav-menu li a:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #fbbf24;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: transparent;
            border: none;
            font-size: 1.8rem;
            color: #fff;
            cursor: pointer;
            padding: 0.2rem 0.4rem;
            transition: transform 0.2s;
        }
        .hamburger:hover {
            transform: scale(1.1);
        }
        .breadcrumb {
            background: #f1f0ec;
            padding: 0.6rem 0;
            font-size: 0.88rem;
            border-bottom: 1px solid #e2ddd6;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem 0.2rem;
        }
        .breadcrumb ol li+li::before {
            content: "›";
            margin: 0 0.5rem;
            color: #9ca3af;
            font-weight: 600;
        }
        .breadcrumb a {
            color: #6b7b84;
        }
        .breadcrumb a:hover {
            color: #b45309;
        }
        .breadcrumb .current {
            color: #1e2a2f;
            font-weight: 600;
        }
        .main-content {
            padding: 2.5rem 0 3rem;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
        }
        @media(max-width:920px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
        }
        .article-body {
            background: #fff;
            padding: 2rem 2.2rem;
            border-radius: 16px;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
        }
        .article-body img {
            margin: 1.8rem 0;
            width: 100%;
            border-radius: 14px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
        }
        .sidebar {
            background: #fff;
            padding: 1.8rem 1.6rem;
            border-radius: 16px;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
            height: fit-content;
            position: sticky;
            top: 90px;
        }
        .sidebar h3 {
            font-size: 1.2rem;
            margin-top: 0;
            border-bottom: 2px solid #f1f0ec;
            padding-bottom: 0.6rem;
        }
        .sidebar ul {
            list-style: none;
            padding: 0;
        }
        .sidebar ul li {
            padding: 0.5rem 0;
            border-bottom: 1px solid #f3f1ed;
        }
        .sidebar ul li a {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            color: #2d3f47;
            font-weight: 500;
        }
        .sidebar ul li a:hover {
            color: #b45309;
            text-decoration: none;
        }
        .sidebar ul li a i {
            color: #b45309;
            font-size: 0.8rem;
        }
        .search-box {
            background: #f9f7f4;
            padding: 1.5rem;
            border-radius: 12px;
            margin: 2rem 0 1.5rem;
        }
        .search-box form {
            display: flex;
            gap: 0.6rem;
            flex-wrap: wrap;
        }
        .search-box input[type="text"] {
            flex: 1;
            min-width: 180px;
            padding: 0.7rem 1rem;
            border: 2px solid #e2ddd6;
            border-radius: 8px;
            font-size: 1rem;
            background: #fff;
            transition: border 0.2s;
        }
        .search-box input[type="text"]:focus {
            outline: none;
            border-color: #b45309;
        }
        .search-box button {
            padding: 0.7rem 1.5rem;
            background: #b45309;
            color: #fff;
            border: none;
            border-radius: 8px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .search-box button:hover {
            background: #92400e;
            transform: translateY(-1px);
        }
        .feedback-section {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
            margin: 2.5rem 0 1.5rem;
        }
        @media(max-width:680px) {
            .feedback-section {
                grid-template-columns: 1fr;
            }
        }
        .feedback-card {
            background: #f9f7f4;
            padding: 1.5rem 1.8rem;
            border-radius: 14px;
            border: 1px solid #ebe7e0;
        }
        .feedback-card h3 {
            margin-top: 0;
            font-size: 1.15rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .feedback-card form {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
            margin-top: 0.8rem;
        }
        .feedback-card input,
        .feedback-card textarea,
        .feedback-card select {
            padding: 0.6rem 0.9rem;
            border: 2px solid #e2ddd6;
            border-radius: 8px;
            font-size: 0.95rem;
            background: #fff;
            transition: border 0.2s;
            font-family: inherit;
        }
        .feedback-card input:focus,
        .feedback-card textarea:focus,
        .feedback-card select:focus {
            outline: none;
            border-color: #b45309;
        }
        .feedback-card textarea {
            min-height: 90px;
            resize: vertical;
        }
        .feedback-card button {
            padding: 0.65rem 1.4rem;
            background: #1e2a2f;
            color: #fff;
            border: none;
            border-radius: 8px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            align-self: flex-start;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .feedback-card button:hover {
            background: #2d3f47;
            transform: translateY(-1px);
        }
        .star-select {
            display: flex;
            gap: 0.3rem;
            font-size: 1.6rem;
            color: #d1d5db;
            cursor: pointer;
        }
        .star-select .fas.fa-star {
            color: #f59e0b;
        }
        .site-footer {
            background: #1e2a2f;
            color: #d1d5db;
            padding: 2.5rem 0 1.2rem;
            margin-top: 2rem;
            border-top: 4px solid #b45309;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        @media(max-width:720px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.2rem;
            }
        }
        .footer-grid h4 {
            color: #fbbf24;
            margin-top: 0;
            font-size: 1.1rem;
        }
        .footer-grid p,
        .footer-grid a {
            color: #d1d5db;
            font-size: 0.92rem;
        }
        .footer-grid a:hover {
            color: #fbbf24;
        }
        friend-link {
            display: block;
            margin: 0.8rem 0;
        }
        friend-link a {
            color: #e2e8f0;
            font-weight: 500;
            padding: 0.2rem 0;
            display: inline-block;
        }
        friend-link a:hover {
            color: #fbbf24;
        }
        .copyright {
            border-top: 1px solid #374b54;
            padding-top: 1.2rem;
            font-size: 0.85rem;
            text-align: center;
            color: #9ca3af;
        }
        .copyright strong {
            color: #d1d5db;
        }
        @media(max-width:768px) {
            .hamburger {
                display: block;
            }
            .nav-menu {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 0.4rem;
                padding: 1rem 0 0.4rem;
                border-top: 1px solid rgba(255, 255, 255, 0.1);
                margin-top: 0.6rem;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu li a {
                padding: 0.6rem 0.8rem;
                width: 100%;
                border-radius: 8px;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            .article-body {
                padding: 1.2rem 1rem;
            }
            .sidebar {
                position: static;
                margin-top: 1.5rem;
            }
            .my-logo {
                font-size: 1.5rem;
            }
            .my-logo small {
                font-size: 0.6rem;
            }
        }
        @media(max-width:480px) {
            .container {
                padding: 0 12px;
            }
            h1 {
                font-size: 1.5rem;
            }
            .feedback-card {
                padding: 1rem;
            }
            .search-box {
                padding: 1rem;
            }
        }
        .text-muted {
            color: #6b7b84;
            font-size: 0.92rem;
        }
        .updated-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: #f1f0ec;
            padding: 0.3rem 1rem;
            border-radius: 30px;
            font-size: 0.85rem;
            color: #3a505a;
            font-weight: 500;
        }
        .emoji-lg {
            font-size: 1.3rem;
        }
        .divider {
            border: none;
            height: 1px;
            background: linear-gradient(to right, transparent, #e2ddd6, transparent);
            margin: 2rem 0;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.2rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
        }
        table th {
            background: #1e2a2f;
            color: #fff;
            padding: 0.6rem 1rem;
            text-align: left;
            font-weight: 600;
        }
        table td {
            padding: 0.6rem 1rem;
            border-bottom: 1px solid #ebe7e0;
        }
        table tr:nth-child(even) {
            background: #f9f7f4;
        }
        .highlight-box {
            background: #fef9ee;
            border-left: 4px solid #f59e0b;
            padding: 1.2rem 1.5rem;
            border-radius: 0 10px 10px 0;
            margin: 1.5rem 0;
        }
        .tip-box {
            background: #eef6f8;
            border-left: 4px solid #0e7c8a;
            padding: 1.2rem 1.5rem;
            border-radius: 0 10px 10px 0;
            margin: 1.5rem 0;
        }