*,
        *::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: #f8f6f1;
            color: #2c2b28;
            line-height: 1.7;
            padding: 0 1rem;
        }
        a {
            color: #1a6b8a;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #0d4b63;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        .container {
            max-width: 1180px;
            margin: 0 auto;
            padding: 0 1rem;
        }
        h1 {
            font-size: 2.6rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.15;
            color: #1a3a4a;
            margin-bottom: 0.5rem;
        }
        h2 {
            font-size: 2rem;
            font-weight: 700;
            color: #1a3a4a;
            margin-top: 2.8rem;
            margin-bottom: 1rem;
            border-bottom: 3px solid #d4c9b8;
            padding-bottom: 0.5rem;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 600;
            color: #2c4a5a;
            margin-top: 2rem;
            margin-bottom: 0.75rem;
        }
        h4 {
            font-size: 1.2rem;
            font-weight: 600;
            color: #3a5a6a;
            margin-top: 1.5rem;
            margin-bottom: 0.5rem;
        }
        p {
            margin-bottom: 1.25rem;
            font-size: 1.0625rem;
        }
        .lead {
            font-size: 1.25rem;
            font-weight: 400;
            color: #3e3d39;
            line-height: 1.8;
        }
        strong {
            font-weight: 700;
            color: #1a3a4a;
        }
        em {
            font-style: italic;
            color: #5a4a3a;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.2em;
        }
        header {
            background: #ffffff;
            border-bottom: 2px solid #e2d9cc;
            padding: 0.75rem 0;
            margin-bottom: 1.5rem;
            position: relative;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            max-width: 1180px;
            margin: 0 auto;
            padding: 0 1rem;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 900;
            color: #1a3a4a;
            letter-spacing: -0.03em;
            background: linear-gradient(145deg, #1a3a4a, #2a6a7a);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-decoration: none !important;
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none !important;
        }
        .my-logo small {
            font-size: 0.7rem;
            font-weight: 400;
            -webkit-text-fill-color: #6a7a7a;
            display: block;
            letter-spacing: 0.1em;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 1.75rem;
            list-style: none;
        }
        .nav-menu a {
            font-weight: 500;
            color: #2c4a5a;
            padding: 0.4rem 0;
            border-bottom: 2px solid transparent;
            transition: border-color 0.2s, color 0.2s;
        }
        .nav-menu a:hover {
            border-bottom-color: #1a6b8a;
            color: #1a3a4a;
            text-decoration: none;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: #1a3a4a;
            cursor: pointer;
            padding: 0.25rem 0.5rem;
        }
        .breadcrumb {
            padding: 0.75rem 0 0.25rem 0;
            font-size: 0.9rem;
            color: #7a7a72;
            max-width: 1180px;
            margin: 0 auto;
        }
        .breadcrumb a {
            color: #5a6a6a;
        }
        .breadcrumb a:hover {
            color: #1a3a4a;
        }
        .breadcrumb span {
            margin: 0 0.35rem;
            color: #b0a89a;
        }
        .hero-image {
            margin: 2rem 0 2.5rem 0;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.08);
            background: #e8e2d8;
        }
        .hero-image img {
            width: 100%;
            max-height: 480px;
            object-fit: cover;
        }
        .hero-caption {
            font-size: 0.85rem;
            color: #6a6a62;
            padding: 0.75rem 1rem;
            background: #f0ece6;
            text-align: center;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 280px;
            gap: 2.5rem;
            margin-top: 1rem;
        }
        .main-content {
            min-width: 0;
        }
        .sidebar {
            border-left: 1px solid #e2d9cc;
            padding-left: 2rem;
        }
        .sidebar-section {
            margin-bottom: 2.5rem;
            background: #faf8f4;
            padding: 1.25rem;
            border-radius: 12px;
            border: 1px solid #ece5da;
        }
        .sidebar-section h3 {
            font-size: 1.2rem;
            margin-top: 0;
            border-bottom: 2px solid #d4c9b8;
            padding-bottom: 0.5rem;
        }
        .sidebar-section ul {
            list-style: none;
            padding: 0;
        }
        .sidebar-section li {
            margin-bottom: 0.6rem;
        }
        .sidebar-section li a {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.4rem 0;
            border-bottom: 1px solid #f0ebe4;
            font-weight: 500;
        }
        .sidebar-section li a i {
            width: 1.2rem;
            color: #8a9a8a;
        }
        .search-box {
            display: flex;
            margin: 1.5rem 0 2rem 0;
            max-width: 580px;
            border-radius: 40px;
            overflow: hidden;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
            border: 1px solid #d4c9b8;
            background: #fff;
        }
        .search-box input {
            flex: 1;
            border: none;
            padding: 0.9rem 1.5rem;
            font-size: 1rem;
            outline: none;
            background: transparent;
            font-family: inherit;
        }
        .search-box button {
            background: #1a6b8a;
            border: none;
            color: #fff;
            padding: 0 1.8rem;
            font-size: 1.1rem;
            cursor: pointer;
            transition: background 0.2s;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 600;
        }
        .search-box button:hover {
            background: #0d4b63;
        }
        .feedback-section {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            margin: 3rem 0 2rem 0;
            padding: 2rem;
            background: #faf8f4;
            border-radius: 16px;
            border: 1px solid #e2d9cc;
        }
        .feedback-card {
            background: #fff;
            padding: 1.5rem;
            border-radius: 12px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
        }
        .feedback-card h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .feedback-card form {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
            margin-top: 1rem;
        }
        .feedback-card input,
        .feedback-card textarea,
        .feedback-card select {
            padding: 0.7rem 1rem;
            border: 1px solid #d4c9b8;
            border-radius: 8px;
            font-family: inherit;
            font-size: 0.95rem;
            background: #fcfaf7;
            outline: none;
            transition: border-color 0.2s;
        }
        .feedback-card input:focus,
        .feedback-card textarea:focus,
        .feedback-card select:focus {
            border-color: #1a6b8a;
        }
        .feedback-card textarea {
            min-height: 90px;
            resize: vertical;
        }
        .feedback-card .btn {
            background: #1a6b8a;
            color: #fff;
            border: none;
            padding: 0.7rem 1.4rem;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
            align-self: flex-start;
            font-size: 0.95rem;
        }
        .feedback-card .btn:hover {
            background: #0d4b63;
        }
        .star-rating {
            display: flex;
            gap: 0.4rem;
            font-size: 1.6rem;
            color: #d4c9b8;
            cursor: pointer;
            direction: rtl;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            cursor: pointer;
            transition: color 0.15s;
            color: #d4c9b8;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f5b342;
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
            font-size: 0.95rem;
            background: #fcfaf7;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
        }
        .data-table th {
            background: #1a3a4a;
            color: #fff;
            padding: 0.8rem 1rem;
            text-align: left;
            font-weight: 600;
        }
        .data-table td {
            padding: 0.7rem 1rem;
            border-bottom: 1px solid #ece5da;
        }
        .data-table tr:last-child td {
            border-bottom: none;
        }
        .data-table tr:hover td {
            background: #f5f0e8;
        }
        blockquote {
            border-left: 5px solid #1a6b8a;
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            background: #f5f0e8;
            border-radius: 0 12px 12px 0;
            font-style: italic;
            color: #3a4a4a;
        }
        blockquote cite {
            display: block;
            margin-top: 0.5rem;
            font-style: normal;
            font-weight: 600;
            color: #1a3a4a;
        }
        footer {
            margin-top: 4rem;
            padding: 2.5rem 0 1.5rem 0;
            border-top: 2px solid #e2d9cc;
            background: #ffffff;
        }
        .footer-inner {
            max-width: 1180px;
            margin: 0 auto;
            padding: 0 1rem;
        }
        friend-link {
            display: block;
            padding: 1rem 0;
            font-size: 0.95rem;
            color: #5a6a6a;
        }
        friend-link a {
            display: inline-block;
            margin: 0.25rem 0.75rem 0.25rem 0;
            padding: 0.25rem 0.75rem;
            background: #f5f0e8;
            border-radius: 20px;
            font-weight: 500;
            transition: background 0.2s;
        }
        friend-link a:hover {
            background: #e2d9cc;
            text-decoration: none;
        }
        .copyright {
            padding-top: 1.5rem;
            border-top: 1px solid #ece5da;
            font-size: 0.85rem;
            color: #8a8a82;
            text-align: center;
        }
        .copyright strong {
            color: #4a5a5a;
        }
        .last-updated {
            display: inline-block;
            background: #ece5da;
            padding: 0.3rem 1rem;
            border-radius: 30px;
            font-size: 0.85rem;
            color: #4a5a5a;
            margin: 0.5rem 0 1rem 0;
        }
        @media (max-width: 920px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                border-left: none;
                padding-left: 0;
                margin-top: 2rem;
            }
            .feedback-section {
                grid-template-columns: 1fr;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            .nav-menu {
                display: none;
                flex-direction: column;
                width: 100%;
                padding: 1rem 0;
                gap: 0.5rem;
                border-top: 1px solid #e2d9cc;
                margin-top: 0.75rem;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-toggle {
                display: block;
            }
            .header-inner {
                position: relative;
            }
            .search-box {
                max-width: 100%;
            }
            .search-box button span {
                display: none;
            }
        }
        @media (max-width: 500px) {
            body {
                padding: 0 0.5rem;
            }
            .container {
                padding: 0 0.5rem;
            }
            h1 {
                font-size: 1.7rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .feedback-card .btn {
                width: 100%;
                text-align: center;
            }
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .flex-center {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .text-muted {
            color: #7a7a72;
        }
        .badge {
            display: inline-block;
            background: #1a6b8a;
            color: #fff;
            padding: 0.2rem 0.8rem;
            border-radius: 30px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.03em;
        }
        .scroll-offset::before {
            content: "";
            display: block;
            height: 80px;
            margin-top: -80px;
            visibility: hidden;
        }