*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        :root {
            --primary: #1e3a5f;
            --primary-light: #2a5298;
            --accent: #f0a500;
            --accent-hover: #d49400;
            --bg: #f8f6f0;
            --card-bg: #ffffff;
            --text: #1e1e2a;
            --text-light: #4a4a5a;
            --border: #ddd8ce;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            --radius: 12px;
            --font: 'Segoe UI', Roboto, system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --header-bg: #0f2a44;
            --footer-bg: #0b1f33;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: var(--accent-hover);
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.25;
            color: var(--primary);
            margin-top: 1.6em;
            margin-bottom: 0.4em;
            font-weight: 700;
        }
        h1 {
            font-size: 2.4rem;
            margin-top: 0.2em;
            border-bottom: 4px solid var(--accent);
            display: inline-block;
            padding-bottom: 0.15em;
        }
        h2 {
            font-size: 1.8rem;
            border-left: 5px solid var(--accent);
            padding-left: 0.7rem;
            margin-top: 2.2rem;
        }
        h3 {
            font-size: 1.4rem;
            margin-top: 1.8rem;
            color: var(--primary-light);
        }
        h4 {
            font-size: 1.15rem;
            margin-top: 1.4rem;
            color: #2c3e50;
        }
        p {
            margin-bottom: 1.1rem;
        }
        ul,
        ol {
            margin-bottom: 1.2rem;
            padding-left: 1.6rem;
        }
        li {
            margin-bottom: 0.4rem;
        }
        strong {
            color: var(--primary);
            font-weight: 700;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: var(--header-bg);
            padding: 0 20px;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
        }
        .header-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding: 10px 0;
            min-height: 64px;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: 1px;
            display: flex;
            align-items: center;
            gap: 6px;
            text-decoration: none;
        }
        .my-logo:hover {
            color: var(--accent);
            text-decoration: none;
        }
        .my-logo i {
            color: var(--accent);
            font-size: 2rem;
        }
        .my-logo span {
            color: var(--accent);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 4px 8px;
            transition: transform 0.2s;
        }
        .nav-toggle:hover {
            transform: scale(1.1);
        }
        .nav-menu {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            align-items: center;
        }
        .nav-menu a {
            color: #e0e8f0;
            padding: 6px 14px;
            border-radius: 30px;
            font-weight: 500;
            font-size: 0.92rem;
            transition: background 0.25s, color 0.25s;
            text-decoration: none;
            white-space: nowrap;
        }
        .nav-menu a:hover {
            background: var(--accent);
            color: #1e1e2a;
            text-decoration: none;
        }
        .nav-menu a i {
            margin-right: 5px;
        }
        .breadcrumb {
            background: #eae7df;
            padding: 10px 20px;
            font-size: 0.85rem;
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            align-items: center;
        }
        .breadcrumb a {
            color: var(--primary-light);
        }
        .breadcrumb span {
            color: var(--text-light);
        }
        .breadcrumb .sep {
            color: #999;
            margin: 0 4px;
        }
        .search-section {
            background: var(--card-bg);
            padding: 18px 20px;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            margin: 24px 0 32px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
            border: 1px solid var(--border);
        }
        .search-section label {
            font-weight: 600;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .search-form {
            display: flex;
            flex: 1 1 280px;
            gap: 8px;
        }
        .search-form input {
            flex: 1;
            padding: 10px 16px;
            border: 2px solid var(--border);
            border-radius: 40px;
            font-size: 0.95rem;
            outline: none;
            transition: border 0.25s;
            background: var(--bg);
        }
        .search-form input:focus {
            border-color: var(--primary-light);
        }
        .search-form button {
            background: var(--primary-light);
            color: #fff;
            border: none;
            padding: 10px 22px;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .search-form button:hover {
            background: var(--primary);
            transform: scale(1.02);
        }
        .hero-img-wrap {
            margin: 28px 0 32px;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            position: relative;
            background: #d6d0c4;
        }
        .hero-img-wrap img {
            width: 100%;
            max-height: 420px;
            object-fit: cover;
        }
        .hero-img-wrap .img-caption {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
            color: #fff;
            padding: 26px 20px 16px;
            font-size: 0.9rem;
            font-style: italic;
        }
        .content-area {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 36px;
            margin: 20px 0 40px;
        }
        .content-main {
            min-width: 0;
        }
        .content-sidebar {
            position: sticky;
            top: 90px;
            align-self: start;
        }
        .sidebar-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 20px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            margin-bottom: 22px;
        }
        .sidebar-card h3 {
            margin-top: 0;
            font-size: 1.2rem;
            border-bottom: 2px solid var(--accent);
            padding-bottom: 6px;
            margin-bottom: 12px;
        }
        .sidebar-card ul {
            list-style: none;
            padding-left: 0;
        }
        .sidebar-card ul li {
            padding: 6px 0;
            border-bottom: 1px solid #f0ede8;
        }
        .sidebar-card ul li a {
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card ul li a i {
            color: var(--accent);
            width: 18px;
            text-align: center;
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin: 36px 0 28px;
        }
        .feedback-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 20px 24px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
        }
        .feedback-card h3 {
            margin-top: 0;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            gap: 8px;
            border-bottom: 2px solid var(--accent);
            padding-bottom: 8px;
            margin-bottom: 16px;
        }
        .feedback-card form {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .feedback-card input,
        .feedback-card textarea,
        .feedback-card select {
            padding: 10px 14px;
            border: 2px solid var(--border);
            border-radius: 8px;
            font-size: 0.95rem;
            background: var(--bg);
            outline: none;
            transition: border 0.25s;
            font-family: var(--font);
        }
        .feedback-card input:focus,
        .feedback-card textarea:focus,
        .feedback-card select:focus {
            border-color: var(--primary-light);
        }
        .feedback-card textarea {
            min-height: 90px;
            resize: vertical;
        }
        .feedback-card button {
            background: var(--primary-light);
            color: #fff;
            border: none;
            padding: 12px 20px;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 0.95rem;
        }
        .feedback-card button:hover {
            background: var(--primary);
            transform: scale(1.02);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 4px;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 1.8rem;
            color: #ccc;
            cursor: pointer;
            transition: color 0.2s, transform 0.15s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: var(--accent);
        }
        .star-rating label:hover {
            transform: scale(1.15);
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            margin: 20px 0 28px;
            background: var(--card-bg);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .data-table th {
            background: var(--primary);
            color: #fff;
            padding: 12px 16px;
            text-align: left;
            font-weight: 600;
        }
        .data-table td {
            padding: 10px 16px;
            border-bottom: 1px solid var(--border);
        }
        .data-table tr:last-child td {
            border-bottom: none;
        }
        .data-table tr:hover td {
            background: #f4f1ea;
        }
        .site-footer {
            background: var(--footer-bg);
            color: #c8d0da;
            padding: 32px 20px 20px;
            margin-top: 48px;
            border-top: 4px solid var(--accent);
        }
        .footer-inner {
            max-width: var(--max-width);
            margin: 0 auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 24px;
        }
        .footer-col h4 {
            color: var(--accent);
            margin-top: 0;
            margin-bottom: 12px;
            font-size: 1.1rem;
            border-bottom: 1px solid #2a4055;
            padding-bottom: 6px;
        }
        .footer-col a {
            color: #a0b8d0;
            display: block;
            padding: 3px 0;
            font-size: 0.9rem;
            transition: color 0.2s;
        }
        .footer-col a:hover {
            color: var(--accent);
            text-decoration: none;
        }
        .footer-col p {
            font-size: 0.9rem;
            margin-bottom: 0.6rem;
        }
        friend-link {
            display: block;
            padding: 12px 0 4px;
            border-top: 1px solid #2a4055;
            margin-top: 12px;
            font-size: 0.9rem;
        }
        friend-link a {
            display: inline-block;
            margin-right: 20px;
            color: #a0b8d0;
        }
        friend-link a:hover {
            color: var(--accent);
        }
        .copyright {
            text-align: center;
            padding-top: 16px;
            border-top: 1px solid #2a4055;
            font-size: 0.82rem;
            color: #8899aa;
            margin-top: 8px;
        }
        .copyright strong {
            color: #b0c8e0;
        }
        @media(max-width:992px) {
            .content-area {
                grid-template-columns: 1fr;
            }
            .content-sidebar {
                position: static;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 18px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.5rem;
            }
        }
        @media(max-width:768px) {
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                padding: 10px 0 16px;
                gap: 4px;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu a {
                padding: 10px 16px;
                border-radius: 8px;
                white-space: normal;
            }
            .header-inner {
                min-height: 56px;
            }
            .feedback-grid {
                grid-template-columns: 1fr;
            }
            .content-sidebar {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .search-section {
                flex-direction: column;
                align-items: stretch;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                justify-content: center;
            }
            .hero-img-wrap .img-caption {
                font-size: 0.8rem;
                padding: 16px 14px 12px;
            }
            h1 {
                font-size: 1.7rem;
            }
            h2 {
                font-size: 1.35rem;
            }
            h3 {
                font-size: 1.15rem;
            }
            .data-table {
                font-size: 0.85rem;
            }
            .data-table th,
            .data-table td {
                padding: 8px 10px;
            }
        }
        @media(max-width:480px) {
            .container {
                padding: 0 14px;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .my-logo i {
                font-size: 1.5rem;
            }
            .breadcrumb {
                font-size: 0.75rem;
                padding: 8px 14px;
            }
            .sidebar-card {
                padding: 14px;
            }
            .feedback-card {
                padding: 16px;
            }
        }
        .last-updated {
            display: inline-block;
            background: var(--accent);
            color: #1e1e2a;
            padding: 2px 14px;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 10px;
        }
        .emoji-big {
            font-size: 1.8rem;
            vertical-align: middle;
        }
        .highlight-box {
            background: #eef4eb;
            border-left: 5px solid var(--accent);
            padding: 16px 20px;
            border-radius: 6px;
            margin: 20px 0;
        }
        .highlight-box p:last-child {
            margin-bottom: 0;
        }
        .btn-top {
            display: inline-block;
            background: var(--primary-light);
            color: #fff;
            padding: 4px 16px;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 600;
            transition: background 0.25s;
        }
        .btn-top:hover {
            background: var(--primary);
            text-decoration: none;
            color: #fff;
        }
        .tag {
            display: inline-block;
            background: #e0dcd4;
            padding: 2px 12px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--primary);
        }
        .anchor-offset {
            scroll-margin-top: 80px;
        }