*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; font-size: 16px; }
        body {
            font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
            background: #f4f7fc;
            color: #1e2a3a;
            line-height: 1.7;
            padding: 0;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        a { color: #1a6fb5; text-decoration: none; transition: color 0.2s; }
        a:hover { color: #0d4b7a; text-decoration: underline; }
        img { max-width: 100%; height: auto; display: block; border-radius: 8px; }
        ul, ol { padding-left: 1.5rem; margin-bottom: 1.2rem; }
        li { margin-bottom: 0.4rem; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; margin-top: 1.8rem; margin-bottom: 0.8rem; font-weight: 700; color: #0b1a2a; }
        h1 { font-size: 2.2rem; margin-top: 0; }
        h2 { font-size: 1.7rem; border-left: 5px solid #1a6fb5; padding-left: 0.8rem; }
        h3 { font-size: 1.35rem; color: #1e3a5a; }
        h4 { font-size: 1.1rem; color: #2a4a6a; }
        p { margin-bottom: 1.2rem; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 1.2rem; }
        .site-header {
            background: linear-gradient(135deg, #0b1a2a 0%, #1a3a5a 100%);
            color: #fff;
            padding: 0.8rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            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;
            gap: 0.6rem;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: #fff;
            background: rgba(255,255,255,0.08);
            padding: 0.3rem 1rem;
            border-radius: 40px;
            display: inline-block;
            transition: background 0.3s;
            text-decoration: none !important;
        }
        .my-logo:hover { background: rgba(255,255,255,0.18); color: #fff; text-decoration: none; }
        .my-logo span { color: #7fc9ff; }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.2rem 0.6rem;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .nav-toggle:hover { background: rgba(255,255,255,0.12); }
        .main-nav {
            display: flex;
            gap: 0.2rem;
            flex-wrap: wrap;
            align-items: center;
        }
        .main-nav a {
            color: #d4e4f5;
            padding: 0.4rem 0.8rem;
            border-radius: 20px;
            font-size: 0.92rem;
            font-weight: 500;
            transition: all 0.2s;
            white-space: nowrap;
        }
        .main-nav a:hover, .main-nav a.active {
            background: rgba(255,255,255,0.15);
            color: #fff;
            text-decoration: none;
        }
        .main-nav a i { margin-right: 0.3rem; }
        .breadcrumb {
            background: #e8edf4;
            padding: 0.5rem 0;
            font-size: 0.85rem;
            border-bottom: 1px solid #d0dae8;
        }
        .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: #7a8a9e; }
        .breadcrumb a { color: #1a6fb5; }
        .breadcrumb .current { color: #4a5a6e; font-weight: 600; }
        .page-wrap {
            flex: 1;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2rem;
            padding: 2rem 0;
        }
        .main-content { min-width: 0; }
        .sidebar {
            background: #fff;
            border-radius: 12px;
            padding: 1.6rem;
            box-shadow: 0 2px 12px rgba(0,0,0,0.06);
            position: sticky;
            top: 100px;
            align-self: start;
            height: fit-content;
            max-height: calc(100vh - 140px);
            overflow-y: auto;
        }
        .sidebar h3 { font-size: 1.1rem; margin-top: 0; border-bottom: 2px solid #e8edf4; padding-bottom: 0.5rem; }
        .sidebar ul { list-style: none; padding: 0; margin: 0; }
        .sidebar li { margin-bottom: 0.3rem; }
        .sidebar a { display: block; padding: 0.35rem 0.5rem; border-radius: 6px; font-size: 0.9rem; transition: background 0.2s; }
        .sidebar a:hover { background: #eef3fa; text-decoration: none; }
        .article-card {
            background: #fff;
            border-radius: 14px;
            padding: 2rem 2.2rem;
            box-shadow: 0 2px 16px rgba(0,0,0,0.05);
            margin-bottom: 2rem;
        }
        .article-card .meta {
            font-size: 0.9rem;
            color: #5a6a7e;
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin-bottom: 1.2rem;
            border-bottom: 1px solid #eef2f7;
            padding-bottom: 0.8rem;
        }
        .article-card .meta i { margin-right: 0.3rem; }
        .last-updated { font-weight: 600; color: #1a6fb5; }
        .featured-image {
            margin: 1.5rem 0;
            border-radius: 10px;
            overflow: hidden;
            background: #eef3fa;
        }
        .featured-image img { width: 100%; object-fit: cover; }
        .featured-image figcaption { font-size: 0.85rem; color: #5a6a7e; padding: 0.5rem 1rem; background: #f8fafc; }
        .highlight-box {
            background: #eef6ff;
            border-left: 4px solid #1a6fb5;
            padding: 1.2rem 1.5rem;
            border-radius: 0 8px 8px 0;
            margin: 1.5rem 0;
        }
        .highlight-box strong { color: #0b1a2a; }
        .interview-block {
            background: #f8f6f0;
            border-radius: 10px;
            padding: 1.5rem;
            margin: 1.5rem 0;
            border: 1px solid #e8e0d0;
        }
        .interview-block .speaker { font-weight: 700; color: #1a3a5a; }
        .interview-block .speaker::before { content: "🗣️ "; }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.2rem 0;
            font-size: 0.95rem;
        }
        .data-table th {
            background: #0b1a2a;
            color: #fff;
            padding: 0.6rem 1rem;
            text-align: left;
        }
        .data-table td {
            padding: 0.5rem 1rem;
            border-bottom: 1px solid #e0e6ef;
        }
        .data-table tr:nth-child(even) { background: #f8fafc; }
        .data-table tr:hover { background: #eef3fa; }
        .search-section {
            margin-bottom: 2rem;
        }
        .search-form {
            display: flex;
            gap: 0.5rem;
            background: #fff;
            border-radius: 50px;
            padding: 0.3rem;
            box-shadow: 0 2px 12px rgba(0,0,0,0.06);
            max-width: 600px;
        }
        .search-form input {
            flex: 1;
            border: none;
            padding: 0.7rem 1.2rem;
            border-radius: 50px;
            font-size: 1rem;
            outline: none;
            background: transparent;
        }
        .search-form button {
            background: #1a6fb5;
            border: none;
            color: #fff;
            padding: 0.7rem 1.6rem;
            border-radius: 50px;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.2s;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .search-form button:hover { background: #0d4b7a; }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .feedback-card {
            background: #fff;
            border-radius: 12px;
            padding: 1.5rem;
            box-shadow: 0 2px 12px rgba(0,0,0,0.05);
        }
        .feedback-card h3 { margin-top: 0; font-size: 1.2rem; }
        .feedback-card form { display: flex; flex-direction: column; gap: 0.8rem; }
        .feedback-card input, .feedback-card textarea, .feedback-card select {
            width: 100%;
            padding: 0.6rem 1rem;
            border: 1px solid #d0dae8;
            border-radius: 8px;
            font-size: 0.95rem;
            font-family: inherit;
            transition: border 0.2s;
        }
        .feedback-card input:focus, .feedback-card textarea:focus, .feedback-card select:focus {
            border-color: #1a6fb5;
            outline: none;
            box-shadow: 0 0 0 3px rgba(26,111,181,0.12);
        }
        .feedback-card textarea { resize: vertical; min-height: 80px; }
        .feedback-card .btn-submit {
            background: #1a6fb5;
            color: #fff;
            border: none;
            padding: 0.65rem 1.5rem;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
            align-self: flex-start;
        }
        .feedback-card .btn-submit:hover { background: #0d4b7a; }
        .rating-stars { display: flex; gap: 0.3rem; direction: rtl; font-size: 1.8rem; }
        .rating-stars input { display: none; }
        .rating-stars label { cursor: pointer; color: #d0dae8; transition: color 0.15s; }
        .rating-stars label:hover, .rating-stars label:hover ~ label, .rating-stars input:checked ~ label { color: #f5b342; }
        friend-link {
            display: block;
            background: #0b1a2a;
            color: #d4e4f5;
            padding: 1.8rem 0;
            margin-top: 2rem;
            border-top: 3px solid #1a6fb5;
        }
        friend-link .container {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem 1.5rem;
            justify-content: center;
        }
        friend-link a {
            color: #a8c8e8;
            padding: 0.2rem 0.6rem;
            border-radius: 4px;
            transition: color 0.2s, background 0.2s;
            font-size: 0.9rem;
        }
        friend-link a:hover { color: #fff; background: rgba(255,255,255,0.08); text-decoration: none; }
        friend-link .fl-title {
            width: 100%;
            text-align: center;
            font-size: 0.85rem;
            color: #7a9ab8;
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-bottom: 0.4rem;
        }
        .site-footer {
            background: #060f1a;
            color: #8a9aae;
            padding: 1.5rem 0;
            text-align: center;
            font-size: 0.85rem;
            border-top: 1px solid #1a2a3a;
        }
        .site-footer p { margin-bottom: 0.3rem; }
        .site-footer a { color: #7fc9ff; }
        @media (max-width: 1024px) {
            .page-wrap { grid-template-columns: 1fr; }
            .sidebar {
                position: static;
                max-height: none;
                margin-top: 1.5rem;
            }
        }
        @media (max-width: 768px) {
            .header-inner { flex-wrap: wrap; }
            .nav-toggle { display: block; }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                background: #0b1a2a;
                padding: 0.8rem 0.4rem;
                border-radius: 0 0 12px 12px;
                gap: 0.2rem;
                margin-top: 0.4rem;
            }
            .main-nav.open { display: flex; }
            .main-nav a { padding: 0.6rem 1rem; border-radius: 8px; }
            .article-card { padding: 1.2rem; }
            .feedback-grid { grid-template-columns: 1fr; }
            h1 { font-size: 1.7rem; }
            h2 { font-size: 1.35rem; }
            .search-form { max-width: 100%; flex-wrap: wrap; border-radius: 12px; }
            .search-form input { width: 100%; border-radius: 12px 12px 0 0; }
            .search-form button { width: 100%; border-radius: 0 0 12px 12px; justify-content: center; }
            .data-table { font-size: 0.8rem; }
            .data-table th, .data-table td { padding: 0.4rem 0.6rem; }
        }
        @media (max-width: 480px) {
            .container { padding: 0 0.8rem; }
            .article-card { padding: 0.8rem; }
            .my-logo { font-size: 1.2rem; padding: 0.2rem 0.8rem; }
            .rating-stars { font-size: 1.4rem; }
        }
        ::-webkit-scrollbar { width: 6px; }
        ::-webkit-scrollbar-track { background: #e8edf4; }
        ::-webkit-scrollbar-thumb { background: #1a6fb5; border-radius: 10px; }
        @media print {
            .site-header, .sidebar, .search-section, .feedback-grid, friend-link, .site-footer, .nav-toggle { display: none !important; }
            .page-wrap { display: block; }
            .article-card { box-shadow: none; border: 1px solid #ddd; }
        }