*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            background: #f8f6f2;
            color: #1e1e1e;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        a {
            color: #1a6fb5;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #0b3d5e;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        .site-header {
            background: #ffffff;
            border-bottom: 2px solid #e8e3da;
            padding: 16px 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #2b5f8a, #1a3a5c);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .my-logo:hover {
            text-decoration: none;
            opacity: 0.85;
        }
        .my-logo span {
            -webkit-text-fill-color: #1a6fb5;
            font-weight: 300;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.6rem;
            color: #1e1e1e;
            cursor: pointer;
            padding: 4px 8px;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 24px;
            align-items: center;
        }
        .main-nav a {
            font-weight: 500;
            color: #2c3e4f;
            padding: 6px 0;
            border-bottom: 2px solid transparent;
            transition: border-color 0.2s;
        }
        .main-nav a:hover {
            border-bottom-color: #1a6fb5;
            text-decoration: none;
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                margin-top: 12px;
                border-top: 1px solid #e8e3da;
                padding-top: 12px;
            }
            .main-nav.open {
                display: block;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 12px;
                align-items: flex-start;
            }
            .header-inner {
                flex-wrap: wrap;
            }
        }
        .breadcrumb {
            padding: 16px 0 8px;
            font-size: 0.85rem;
            color: #6b6b6b;
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }
        .breadcrumb a {
            color: #1a6fb5;
        }
        .breadcrumb span.sep {
            color: #aaa;
            margin: 0 4px;
        }
        .content {
            padding: 32px 0 48px;
        }
        .content h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 16px;
            color: #1a2a3a;
            letter-spacing: -0.5px;
        }
        .content h2 {
            font-size: 1.9rem;
            font-weight: 700;
            margin-top: 48px;
            margin-bottom: 16px;
            color: #1a3a5c;
            border-bottom: 3px solid #e0d8cc;
            padding-bottom: 8px;
        }
        .content h3 {
            font-size: 1.4rem;
            font-weight: 600;
            margin-top: 32px;
            margin-bottom: 12px;
            color: #2c4a6a;
        }
        .content h4 {
            font-size: 1.15rem;
            font-weight: 600;
            margin-top: 24px;
            margin-bottom: 8px;
            color: #3a5a7a;
        }
        .content p {
            margin-bottom: 18px;
            font-size: 1.05rem;
            color: #2c2c2c;
        }
        .content strong {
            font-weight: 700;
            color: #0b2a3f;
        }
        .content ul,
        .content ol {
            margin: 12px 0 24px 28px;
        }
        .content li {
            margin-bottom: 10px;
            font-size: 1.02rem;
        }
        .content .highlight-box {
            background: #eef4fa;
            border-left: 5px solid #1a6fb5;
            padding: 20px 24px;
            border-radius: 0 12px 12px 0;
            margin: 24px 0;
        }
        .content .highlight-box p {
            margin-bottom: 4px;
        }
        .content .emoji-lg {
            font-size: 1.3em;
            margin-right: 4px;
        }
        .content .btn-link {
            display: inline-block;
            background: #1a6fb5;
            color: #fff;
            padding: 8px 20px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: background 0.2s, transform 0.1s;
        }
        .content .btn-link:hover {
            background: #0f4c7a;
            text-decoration: none;
            transform: scale(1.02);
        }
        .featured-image {
            margin: 28px 0;
            border-radius: 14px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
        }
        .featured-image figcaption {
            font-size: 0.85rem;
            color: #6b6b6b;
            margin-top: 8px;
            text-align: center;
            font-style: italic;
        }
        .search-section {
            background: #ffffff;
            border-radius: 16px;
            padding: 28px 32px;
            margin: 40px 0;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
            border: 1px solid #e8e3da;
        }
        .search-section h3 {
            margin-top: 0;
        }
        .search-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-top: 12px;
        }
        .search-form input[type="text"] {
            flex: 1;
            min-width: 200px;
            padding: 14px 18px;
            border: 2px solid #ddd6cc;
            border-radius: 40px;
            font-size: 1rem;
            outline: none;
            transition: border-color 0.2s;
            background: #faf9f7;
        }
        .search-form input[type="text"]:focus {
            border-color: #1a6fb5;
        }
        .search-form button {
            padding: 14px 32px;
            background: #1a6fb5;
            color: #fff;
            border: none;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .search-form button:hover {
            background: #0f4c7a;
            transform: scale(1.02);
        }
        .feedback-section {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            margin: 40px 0;
        }
        @media (max-width: 700px) {
            .feedback-section {
                grid-template-columns: 1fr;
            }
        }
        .feedback-card {
            background: #ffffff;
            border-radius: 16px;
            padding: 28px 32px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
            border: 1px solid #e8e3da;
        }
        .feedback-card h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .feedback-card form {
            display: flex;
            flex-direction: column;
            gap: 14px;
            margin-top: 12px;
        }
        .feedback-card textarea,
        .feedback-card input[type="text"],
        .feedback-card select {
            padding: 12px 16px;
            border: 2px solid #ddd6cc;
            border-radius: 12px;
            font-size: 1rem;
            font-family: inherit;
            outline: none;
            transition: border-color 0.2s;
            background: #faf9f7;
        }
        .feedback-card textarea:focus,
        .feedback-card input:focus,
        .feedback-card select:focus {
            border-color: #1a6fb5;
        }
        .feedback-card textarea {
            min-height: 100px;
            resize: vertical;
        }
        .feedback-card .star-select {
            display: flex;
            gap: 6px;
            font-size: 1.6rem;
            direction: rtl;
            justify-content: flex-end;
        }
        .feedback-card .star-select input {
            display: none;
        }
        .feedback-card .star-select label {
            cursor: pointer;
            color: #ddd6cc;
            transition: color 0.15s;
        }
        .feedback-card .star-select label:hover,
        .feedback-card .star-select label:hover~label,
        .feedback-card .star-select input:checked~label {
            color: #f5b342;
        }
        .feedback-card button {
            padding: 12px 24px;
            background: #1a6fb5;
            color: #fff;
            border: none;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            align-self: flex-start;
        }
        .feedback-card button:hover {
            background: #0f4c7a;
            transform: scale(1.02);
        }
        .last-updated {
            font-size: 0.9rem;
            color: #6b6b6b;
            margin-top: 32px;
            padding-top: 16px;
            border-top: 1px solid #e0d8cc;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .site-footer {
            background: #1a2a3a;
            color: #e0ddd8;
            padding: 40px 0 24px;
            margin-top: 48px;
        }
        .site-footer a {
            color: #b0cce0;
        }
        .site-footer a:hover {
            color: #ffffff;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        @media (max-width: 700px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }
        .footer-grid h4 {
            color: #ffffff;
            font-size: 1.1rem;
            margin-bottom: 12px;
            border-bottom: 2px solid #3a5068;
            padding-bottom: 6px;
        }
        .footer-grid ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-grid li {
            margin-bottom: 8px;
        }
        .friend-link {
            display: block;
            background: #223344;
            padding: 16px 20px;
            border-radius: 12px;
            margin-top: 12px;
            border: 1px solid #3a5068;
        }
        .friend-link a {
            display: inline-block;
            margin-right: 16px;
            margin-bottom: 6px;
        }
        .copyright {
            border-top: 1px solid #3a5068;
            padding-top: 20px;
            font-size: 0.85rem;
            text-align: center;
            color: #9aa8b8;
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 16px;
            }
            .content h1 {
                font-size: 1.8rem;
            }
            .content h2 {
                font-size: 1.5rem;
            }
            .content h3 {
                font-size: 1.2rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .search-form button {
                width: 100%;
                justify-content: center;
            }
            .feedback-card {
                padding: 20px;
            }
            .search-section {
                padding: 20px;
            }
        }
        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: #f1ede8;
        }
        ::-webkit-scrollbar-thumb {
            background: #b0b8c0;
            border-radius: 8px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #8a9aa8;
        }