*,
        *::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, 'Helvetica Neue', sans-serif;
            background: #f7f3eb;
            color: #2a2a2a;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: #b4521b;
            text-decoration: underline;
            transition: color 0.2s;
        }
        a:hover {
            color: #7a3a0f;
        }
        ul,
        ol {
            padding-left: 1.4rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.25;
            color: #1e3a5f;
            font-weight: 700;
            margin-top: 1.8rem;
            margin-bottom: 0.6rem;
        }
        h1 {
            font-size: 2.6rem;
            margin-top: 0.4rem;
            margin-bottom: 1rem;
        }
        h2 {
            font-size: 2rem;
            border-bottom: 3px solid #d4a373;
            padding-bottom: 0.3rem;
            margin-top: 2.8rem;
        }
        h3 {
            font-size: 1.5rem;
            margin-top: 2rem;
        }
        h4 {
            font-size: 1.2rem;
            margin-top: 1.4rem;
            font-weight: 600;
        }
        p {
            margin-bottom: 1.2rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.2rem;
        }
        .section-padding {
            padding: 2rem 0;
        }
        .site-header {
            background: #1e3a5f;
            color: #fff;
            padding: 0.6rem 0;
            position: sticky;
            top: 0;
            z-index: 999;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 900;
            letter-spacing: -0.5px;
            color: #f5d6a8;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .my-logo i {
            font-size: 2.2rem;
            color: #d4a373;
        }
        .my-logo:hover {
            color: #ffd78a;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid #f5d6a8;
            color: #f5d6a8;
            font-size: 1.6rem;
            padding: 0.3rem 0.8rem;
            border-radius: 6px;
            cursor: pointer;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(245, 214, 168, 0.15);
        }
        .main-nav {
            display: flex;
            gap: 1.6rem;
            align-items: center;
            flex-wrap: wrap;
        }
        .main-nav a {
            color: #f0e3d0;
            text-decoration: none;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.3rem 0;
            border-bottom: 2px solid transparent;
            transition: border-color 0.2s, color 0.2s;
        }
        .main-nav a:hover {
            color: #f5d6a8;
            border-bottom-color: #d4a373;
        }
        .main-nav a.active {
            color: #f5d6a8;
            border-bottom-color: #d4a373;
        }
        .breadcrumb {
            background: #e8ddd0;
            padding: 0.6rem 0;
            font-size: 0.9rem;
            color: #4a3f35;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 0.6rem;
            padding: 0;
            margin: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.5rem;
            color: #8a7a6a;
            font-weight: 600;
        }
        .breadcrumb a {
            color: #b4521b;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .hero {
            background: linear-gradient(135deg, #1e3a5f 0%, #2c5a7a 100%);
            color: #fff;
            padding: 3rem 0 2.8rem;
            text-align: center;
            border-bottom: 5px solid #d4a373;
        }
        .hero h1 {
            color: #f5d6a8;
            font-size: 2.8rem;
            margin-bottom: 0.6rem;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
        }
        .hero p {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0.4rem auto 1.2rem;
            color: #e8ddd0;
        }
        .hero .last-updated {
            font-size: 0.9rem;
            color: #c4b4a0;
            margin-top: 0.8rem;
            display: inline-block;
            background: rgba(0, 0, 0, 0.25);
            padding: 0.2rem 1rem;
            border-radius: 30px;
        }
        .search-section {
            background: #fff;
            padding: 1.8rem 0;
            border-bottom: 1px solid #ddd0c0;
        }
        .search-form {
            display: flex;
            max-width: 580px;
            margin: 0 auto;
            border-radius: 40px;
            overflow: hidden;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.07);
        }
        .search-form input[type="text"] {
            flex: 1;
            padding: 0.9rem 1.4rem;
            border: 2px solid #d4c0ac;
            border-right: none;
            font-size: 1rem;
            outline: none;
            background: #fcfaf7;
            transition: border-color 0.2s;
        }
        .search-form input[type="text"]:focus {
            border-color: #b4521b;
        }
        .search-form button {
            background: #b4521b;
            color: #fff;
            border: none;
            padding: 0 1.8rem;
            font-size: 1.1rem;
            cursor: pointer;
            transition: background 0.2s;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .search-form button:hover {
            background: #8a3e12;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2.5rem;
        }
        @media (min-width: 992px) {
            .content-grid {
                grid-template-columns: 2fr 1fr;
            }
        }
        .article-body {
            background: #fff;
            padding: 2rem 2.2rem;
            border-radius: 14px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
        }
        .article-body img {
            border-radius: 12px;
            margin: 1.6rem 0;
            width: 100%;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
        }
        .sidebar {
            background: #fff;
            padding: 2rem 1.8rem;
            border-radius: 14px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
            align-self: start;
            position: sticky;
            top: 5.5rem;
        }
        .sidebar h3 {
            margin-top: 0;
            font-size: 1.3rem;
            color: #1e3a5f;
            border-bottom: 2px solid #d4a373;
            padding-bottom: 0.4rem;
        }
        .sidebar ul {
            list-style: none;
            padding: 0;
            margin: 1rem 0 1.6rem;
        }
        .sidebar li {
            padding: 0.4rem 0;
            border-bottom: 1px solid #f0e8de;
        }
        .sidebar a {
            color: #2a2a2a;
            text-decoration: none;
            font-weight: 500;
            display: block;
            transition: color 0.2s, padding-left 0.2s;
        }
        .sidebar a:hover {
            color: #b4521b;
            padding-left: 4px;
        }
        .feedback-section {
            background: #fff;
            padding: 2rem 2.2rem;
            border-radius: 14px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
            margin-top: 2rem;
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
        }
        @media (max-width: 700px) {
            .feedback-grid {
                grid-template-columns: 1fr;
            }
        }
        .feedback-card {
            background: #f9f5ef;
            padding: 1.6rem 1.8rem;
            border-radius: 12px;
            border: 1px solid #e8ddcf;
        }
        .feedback-card h3 {
            margin-top: 0;
            font-size: 1.2rem;
            color: #1e3a5f;
        }
        .feedback-card label {
            display: block;
            font-weight: 600;
            margin: 0.8rem 0 0.3rem;
            font-size: 0.95rem;
        }
        .feedback-card input,
        .feedback-card textarea,
        .feedback-card select {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 2px solid #d4c0ac;
            border-radius: 8px;
            font-size: 0.95rem;
            background: #fff;
            transition: border-color 0.2s;
            font-family: inherit;
        }
        .feedback-card input:focus,
        .feedback-card textarea:focus,
        .feedback-card select:focus {
            border-color: #b4521b;
            outline: none;
        }
        .feedback-card textarea {
            min-height: 100px;
            resize: vertical;
        }
        .feedback-card .btn {
            background: #b4521b;
            color: #fff;
            border: none;
            padding: 0.7rem 2rem;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            margin-top: 0.8rem;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .feedback-card .btn:hover {
            background: #8a3e12;
            transform: scale(1.02);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.2rem;
            margin: 0.4rem 0 0.6rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 1.8rem;
            color: #d4c0ac;
            cursor: pointer;
            transition: color 0.15s;
            margin: 0;
        }
        .star-rating input:checked~label {
            color: #f5b342;
        }
        .star-rating label:hover,
        .star-rating label:hover~label {
            color: #f5b342;
        }
        .site-footer {
            background: #1e3a5f;
            color: #e0d5c8;
            padding: 2.8rem 0 1.8rem;
            margin-top: 3rem;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem 3rem;
        }
        @media (max-width: 650px) {
            .footer-inner {
                grid-template-columns: 1fr;
            }
        }
        .footer-inner h4 {
            color: #f5d6a8;
            margin-top: 0;
            font-size: 1.1rem;
            border-bottom: 1px solid #3a5a7a;
            padding-bottom: 0.3rem;
        }
        .footer-inner a {
            color: #c4b4a0;
            text-decoration: none;
        }
        .footer-inner a:hover {
            color: #f5d6a8;
            text-decoration: underline;
        }
        friend-link {
            display: block;
            background: #2a4a6a;
            padding: 1.4rem 1.8rem;
            border-radius: 10px;
            margin: 1.2rem 0 0.6rem;
            font-size: 0.95rem;
            line-height: 2;
        }
        friend-link a {
            color: #f5d6a8;
            margin: 0 0.6rem 0 0;
            white-space: nowrap;
        }
        friend-link a:hover {
            color: #ffd78a;
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            padding-top: 1.8rem;
            margin-top: 1.8rem;
            border-top: 1px solid #3a5a7a;
            font-size: 0.85rem;
            color: #a09080;
        }
        @media (max-width: 850px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 0.2rem;
                padding: 1rem 0 0.4rem;
                border-top: 1px solid #3a5a7a;
                margin-top: 0.6rem;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 0.5rem 0;
                font-size: 1.1rem;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .article-body {
                padding: 1.4rem;
            }
            .sidebar {
                position: static;
            }
        }
        @media (max-width: 480px) {
            .hero h1 {
                font-size: 1.6rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .my-logo {
                font-size: 1.3rem;
            }
            .my-logo i {
                font-size: 1.6rem;
            }
            .search-form input[type="text"] {
                padding: 0.6rem 1rem;
            }
            .search-form button {
                padding: 0 1rem;
            }
            .feedback-card {
                padding: 1.2rem;
            }
        }
        .highlight {
            background: #fef5e7;
            padding: 0.2rem 0.4rem;
            border-radius: 4px;
            font-weight: 600;
        }
        .stat-box {
            background: #1e3a5f;
            color: #f5d6a8;
            padding: 1.2rem 1.6rem;
            border-radius: 10px;
            margin: 1.4rem 0;
            display: inline-block;
        }
        .stat-box span {
            font-size: 2rem;
            font-weight: 900;
            display: block;
        }
        blockquote {
            border-left: 4px solid #d4a373;
            background: #f9f5ef;
            padding: 0.8rem 1.4rem;
            margin: 1.6rem 0;
            border-radius: 0 8px 8px 0;
            font-style: italic;
            color: #4a3f35;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.4rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
        }
        th,
        td {
            padding: 0.6rem 0.8rem;
            border: 1px solid #ddd0c0;
            text-align: left;
        }
        th {
            background: #1e3a5f;
            color: #f5d6a8;
            font-weight: 600;
        }
        tr:nth-child(even) {
            background: #f9f5ef;
        }
        .btn-top {
            display: inline-block;
            background: #b4521b;
            color: #fff;
            padding: 0.3rem 1.2rem;
            border-radius: 30px;
            text-decoration: none;
            font-weight: 600;
            font-size: 0.85rem;
            transition: background 0.2s;
        }
        .btn-top:hover {
            background: #8a3e12;
            color: #fff;
        }