*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; font-size: 16px; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            background: #f8f9fc;
            color: #1e2a41;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a { color: #2b6c94; text-decoration: none; transition: color 0.2s ease; }
        a:hover, a:focus { color: #1a4a6b; text-decoration: underline; }
        img { max-width: 100%; height: auto; display: block; }
        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; color: #0f1a2e; margin-top: 0; font-weight: 700; }
        .container { max-width: 1120px; margin: 0 auto; padding: 0 20px; }
        .site-header {
            background: linear-gradient(135deg, #0f1a2e 0%, #1c2d4a 100%);
            color: #fff;
            padding: 0 0 4px 0;
            box-shadow: 0 4px 20px rgba(0,0,0,0.15);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 20px;
            max-width: 1120px;
            margin: 0 auto;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: #f0d78c;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .my-logo i { color: #f0d78c; font-size: 1.6rem; }
        .my-logo:hover { color: #ffedb3; text-decoration: none; }
        .my-logo span { font-weight: 300; color: #b8cae0; }
        .nav-toggle { display: none; background: none; border: none; color: #fff; font-size: 1.6rem; cursor: pointer; padding: 4px 8px; }
        .nav-menu { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
        .nav-menu a {
            color: #dce6f5;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: all 0.25s ease;
            white-space: nowrap;
        }
        .nav-menu a:hover, .nav-menu a:focus { background: rgba(255,255,255,0.12); color: #fff; text-decoration: none; }
        .nav-menu a.active { background: #f0d78c; color: #0f1a2e; }
        .breadcrumbs {
            background: #eef2f7;
            padding: 10px 20px;
            font-size: 0.85rem;
            border-bottom: 1px solid #dde3ed;
        }
        .breadcrumbs ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
            padding: 0;
            margin: 0;
            max-width: 1120px;
            margin: 0 auto;
        }
        .breadcrumbs li { margin: 0; display: flex; align-items: center; gap: 6px; }
        .breadcrumbs li+li::before { content: "›"; color: #7a8aa3; font-weight: 600; }
        .breadcrumbs a { color: #2b6c94; }
        .breadcrumbs .current { color: #4a5a73; font-weight: 500; }
        .search-section {
            background: #fff;
            padding: 16px 20px;
            border-bottom: 1px solid #e2e8f0;
        }
        .search-form {
            display: flex;
            gap: 10px;
            max-width: 640px;
            margin: 0 auto;
        }
        .search-form input {
            flex: 1;
            padding: 10px 18px;
            border: 2px solid #dde3ed;
            border-radius: 30px;
            font-size: 0.95rem;
            outline: none;
            transition: border 0.2s;
        }
        .search-form input:focus { border-color: #2b6c94; }
        .search-form button {
            background: #2b6c94;
            color: #fff;
            border: none;
            padding: 10px 24px;
            border-radius: 30px;
            font-size: 0.95rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .search-form button:hover { background: #1a4a6b; }
        .hero {
            background: linear-gradient(145deg, #e8edf6 0%, #d5dfee 100%);
            padding: 40px 20px 48px;
            text-align: center;
            border-bottom: 1px solid #cbd5e1;
        }
        .hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #0f1a2e;
            margin-bottom: 12px;
            letter-spacing: -1px;
        }
        .hero h1 i { color: #2b6c94; margin-right: 10px; }
        .hero p {
            font-size: 1.15rem;
            color: #2d4059;
            max-width: 720px;
            margin: 0 auto 16px;
        }
        .hero-meta {
            display: flex;
            justify-content: center;
            gap: 24px;
            flex-wrap: wrap;
            font-size: 0.9rem;
            color: #4a5a73;
        }
        .hero-meta i { margin-right: 6px; color: #2b6c94; }
        .main-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 40px 20px 60px;
            max-width: 1120px;
            margin: 0 auto;
        }
        .content-area { min-width: 0; }
        .sidebar { position: sticky; top: 100px; align-self: start; }
        .content-area h2 {
            font-size: 1.9rem;
            margin: 2.2rem 0 1rem 0;
            padding-bottom: 6px;
            border-bottom: 3px solid #e2e8f0;
            color: #0f1a2e;
        }
        .content-area h3 {
            font-size: 1.4rem;
            margin: 1.8rem 0 0.8rem 0;
            color: #1c2d4a;
        }
        .content-area h4 {
            font-size: 1.15rem;
            margin: 1.4rem 0 0.6rem 0;
            color: #2d4059;
            font-weight: 600;
        }
        .content-area p {
            margin-bottom: 1.2rem;
            font-size: 1rem;
            color: #1e2a41;
        }
        .content-area .feature-box {
            background: #fff;
            border-left: 4px solid #2b6c94;
            padding: 18px 22px;
            border-radius: 0 12px 12px 0;
            margin: 1.6rem 0;
            box-shadow: 0 2px 8px rgba(0,0,0,0.04);
        }
        .content-area .feature-box i { color: #2b6c94; margin-right: 8px; }
        .content-area .stat-highlight {
            display: inline-block;
            background: #0f1a2e;
            color: #f0d78c;
            padding: 2px 12px;
            border-radius: 20px;
            font-weight: 700;
            font-size: 0.9rem;
        }
        .inline-link { font-weight: 600; }
        .content-img {
            margin: 2rem 0;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 6px 24px rgba(0,0,0,0.08);
            background: #eef2f7;
        }
        .content-img img { width: 100%; object-fit: cover; }
        .content-img figcaption { padding: 10px 18px; font-size: 0.85rem; color: #4a5a73; background: #fff; border-top: 1px solid #e2e8f0; }
        .sidebar-card {
            background: #fff;
            border-radius: 16px;
            padding: 22px 20px;
            margin-bottom: 24px;
            box-shadow: 0 2px 12px rgba(0,0,0,0.05);
            border: 1px solid #e8edf4;
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            margin-bottom: 14px;
            color: #0f1a2e;
            border-bottom: 2px solid #eef2f7;
            padding-bottom: 8px;
        }
        .sidebar-link-list { list-style: none; padding: 0; margin: 0; }
        .sidebar-link-list li { margin-bottom: 6px; padding: 0; }
        .sidebar-link-list a {
            display: block;
            padding: 6px 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #f0f3f8;
            color: #2b6c94;
        }
        .sidebar-link-list a:hover { color: #1a4a6b; padding-left: 4px; }
        .rating-area, .comment-area {
            background: #fff;
            border-radius: 16px;
            padding: 24px 24px 30px;
            margin: 2.2rem 0;
            box-shadow: 0 2px 16px rgba(0,0,0,0.04);
            border: 1px solid #e8edf4;
        }
        .rating-area h3, .comment-area h3 { margin-top: 0; }
        .star-rating { display: flex; gap: 6px; font-size: 1.8rem; cursor: pointer; direction: rtl; justify-content: flex-end; }
        .star-rating input { display: none; }
        .star-rating label { color: #d1d9e6; transition: color 0.2s; cursor: pointer; }
        .star-rating label:hover, .star-rating label:hover ~ label, .star-rating input:checked ~ label { color: #f5b342; }
        .rating-submit { margin-top: 14px; display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
        .rating-submit button {
            background: #2b6c94;
            color: #fff;
            border: none;
            padding: 10px 28px;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
        }
        .rating-submit button:hover { background: #1a4a6b; }
        .rating-display { font-size: 1.1rem; font-weight: 600; color: #0f1a2e; }
        .comment-list { margin: 18px 0; max-height: 320px; overflow-y: auto; }
        .comment-item { padding: 12px 0; border-bottom: 1px solid #eef2f7; }
        .comment-item strong { color: #0f1a2e; }
        .comment-item .date { font-size: 0.8rem; color: #7a8aa3; margin-left: 12px; }
        .comment-form { display: flex; flex-direction: column; gap: 12px; margin-top: 16px; }
        .comment-form input, .comment-form textarea {
            padding: 10px 16px;
            border: 2px solid #dde3ed;
            border-radius: 10px;
            font-size: 0.95rem;
            font-family: inherit;
            outline: none;
            transition: border 0.2s;
            width: 100%;
        }
        .comment-form input:focus, .comment-form textarea:focus { border-color: #2b6c94; }
        .comment-form textarea { min-height: 80px; resize: vertical; }
        .comment-form button {
            align-self: flex-start;
            background: #2b6c94;
            color: #fff;
            border: none;
            padding: 10px 28px;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
        }
        .comment-form button:hover { background: #1a4a6b; }
        .form-feedback { font-size: 0.9rem; color: #2b6c94; margin-top: 6px; min-height: 24px; }
        .site-footer {
            background: #0f1a2e;
            color: #b8cae0;
            padding: 40px 20px 20px;
            border-top: 4px solid #2b6c94;
        }
        .footer-inner {
            max-width: 1120px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
        }
        .footer-inner h4 { color: #f0d78c; font-size: 1rem; margin-bottom: 12px; }
        .footer-inner a { color: #b8cae0; }
        .footer-inner a:hover { color: #f0d78c; }
        .footer-copyright {
            grid-column: 1 / -1;
            border-top: 1px solid #2a3d5a;
            padding-top: 20px;
            margin-top: 20px;
            text-align: center;
            font-size: 0.85rem;
        }
        friend-link {
            display: block;
            margin-top: 12px;
            font-size: 0.9rem;
        }
        friend-link a { margin: 0 6px; }
        @media (max-width: 900px) {
            .main-grid { grid-template-columns: 1fr; gap: 24px; padding: 24px 16px 40px; }
            .sidebar { position: static; }
            .hero h1 { font-size: 2rem; }
            .header-inner { padding: 10px 16px; }
            .nav-menu { display: none; width: 100%; flex-direction: column; align-items: flex-start; padding: 12px 0 8px; gap: 4px; }
            .nav-menu.open { display: flex; }
            .nav-toggle { display: block; }
            .nav-menu a { width: 100%; padding: 10px 12px; border-radius: 8px; }
            .footer-inner { grid-template-columns: 1fr; gap: 24px; }
            .search-form { flex-direction: column; }
            .search-form button { width: 100%; justify-content: center; }
            .star-rating { font-size: 1.5rem; justify-content: center; }
        }
        @media (max-width: 480px) {
            .hero h1 { font-size: 1.5rem; }
            .hero p { font-size: 0.95rem; }
            .content-area h2 { font-size: 1.5rem; }
            .content-area h3 { font-size: 1.2rem; }
            .my-logo { font-size: 1.2rem; }
            .container { padding: 0 12px; }
        }
        .mt-0 { margin-top: 0; }
        .mb-1 { margin-bottom: 1rem; }
        .text-center { text-align: center; }
        .gap-4 { gap: 4px; }
        .flex { display: flex; }
        .flex-wrap { flex-wrap: wrap; }
        .items-center { align-items: center; }
        .text-sm { font-size: 0.9rem; }
        .text-muted { color: #5a6e8a; }
        .fw-700 { font-weight: 700; }