*, *::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 Neue', Arial, sans-serif;
            background: #f7f9fc;
            color: #1a1a2e;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            padding: 0;
        }
        a { color: #0057b3; text-decoration: none; transition: color 0.25s; }
        a:hover, a:focus { color: #003d7a; text-decoration: underline; }
        img { max-width: 100%; height: auto; display: block; border-radius: 8px; }
        h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.3; color: #0d1b2a; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        .site-header {
            background: linear-gradient(135deg, #0d1b2a 0%, #1b2a4a 100%);
            color: #fff;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0,0,0,0.15);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: #f0c27f;
            letter-spacing: 1px;
            text-shadow: 0 2px 8px rgba(0,0,0,0.3);
            transition: transform 0.3s;
        }
        .my-logo:hover { transform: scale(1.03); color: #f7d9a0; text-decoration: none; }
        .my-logo span { color: #fff; font-weight: 300; }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid rgba(255,255,255,0.4);
            color: #fff;
            font-size: 1.6rem;
            padding: 6px 14px;
            border-radius: 8px;
            cursor: pointer;
            transition: background 0.3s;
        }
        .nav-toggle:hover { background: rgba(255,255,255,0.12); }
        .nav-menu {
            display: flex;
            gap: 1.8rem;
            list-style: none;
            align-items: center;
        }
        .nav-menu a {
            color: rgba(255,255,255,0.85);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.4rem 0;
            border-bottom: 2px solid transparent;
            transition: all 0.25s;
        }
        .nav-menu a:hover {
            color: #f0c27f;
            border-bottom-color: #f0c27f;
            text-decoration: none;
        }
        .nav-menu .active a { color: #f0c27f; border-bottom-color: #f0c27f; }
        .breadcrumb {
            background: #eef2f7;
            padding: 0.8rem 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #dce3ed;
        }
        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            list-style: none;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.5rem;
            color: #7f8c9b;
        }
        .breadcrumb a { color: #2c3e50; }
        .breadcrumb a:hover { color: #0057b3; }
        .breadcrumb .current { color: #7f8c9b; font-weight: 500; }
        .main-content { padding: 2.5rem 0 3rem; }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 2.5rem;
        }
        .content-body { min-width: 0; }
        .sidebar { min-width: 0; }
        h1 { font-size: 2.6rem; margin-bottom: 1.2rem; color: #0d1b2a; }
        h2 { font-size: 1.9rem; margin: 2.5rem 0 1rem; border-bottom: 3px solid #f0c27f; padding-bottom: 0.4rem; }
        h3 { font-size: 1.5rem; margin: 2rem 0 0.8rem; color: #1b2a4a; }
        h4 { font-size: 1.2rem; margin: 1.2rem 0 0.5rem; color: #2c3e50; }
        p { margin-bottom: 1.2rem; }
        .lead { font-size: 1.15rem; color: #2c3e50; font-weight: 400; }
        .info-box {
            background: #eef5ff;
            border-left: 5px solid #0057b3;
            padding: 1.2rem 1.5rem;
            border-radius: 0 8px 8px 0;
            margin: 1.5rem 0;
        }
        .info-box strong { color: #003d7a; }
        .tip-box {
            background: #f6f9ed;
            border-left: 5px solid #7cb342;
            padding: 1.2rem 1.5rem;
            border-radius: 0 8px 8px 0;
            margin: 1.5rem 0;
        }
        .warning-box {
            background: #fff6e5;
            border-left: 5px solid #e67e22;
            padding: 1.2rem 1.5rem;
            border-radius: 0 8px 8px 0;
            margin: 1.5rem 0;
        }
        .step-card {
            background: #fff;
            border-radius: 12px;
            padding: 1.5rem;
            margin: 1.2rem 0;
            box-shadow: 0 2px 12px rgba(0,0,0,0.06);
            border: 1px solid #eef2f7;
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .step-card:hover { transform: translateY(-2px); box-shadow: 0 6px 24px rgba(0,0,0,0.1); }
        .step-card .step-num {
            display: inline-block;
            background: #0d1b2a;
            color: #f0c27f;
            font-weight: 700;
            width: 32px;
            height: 32px;
            text-align: center;
            line-height: 32px;
            border-radius: 50%;
            margin-right: 0.6rem;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 12px;
            padding: 1.5rem;
            margin-bottom: 1.8rem;
            box-shadow: 0 2px 12px rgba(0,0,0,0.05);
            border: 1px solid #eef2f7;
        }
        .sidebar-card h3 { font-size: 1.2rem; margin-top: 0; border-bottom: 2px solid #f0c27f; padding-bottom: 0.3rem; }
        .sidebar-links { list-style: none; }
        .sidebar-links li { padding: 0.5rem 0; border-bottom: 1px solid #f0f2f5; }
        .sidebar-links li:last-child { border-bottom: none; }
        .sidebar-links a { color: #0057b3; font-weight: 500; }
        .sidebar-links a:hover { color: #003d7a; }
        .search-form {
            display: flex;
            gap: 0.5rem;
            margin: 1.5rem 0;
        }
        .search-form input {
            flex: 1;
            padding: 0.75rem 1rem;
            border: 2px solid #dce3ed;
            border-radius: 8px;
            font-size: 1rem;
            transition: border 0.3s;
            outline: none;
        }
        .search-form input:focus { border-color: #f0c27f; }
        .search-form button {
            background: #0d1b2a;
            color: #f0c27f;
            border: none;
            padding: 0 1.5rem;
            border-radius: 8px;
            font-size: 1.1rem;
            cursor: pointer;
            transition: background 0.3s;
        }
        .search-form button:hover { background: #1b2a4a; }
        .comment-section, .rating-section {
            background: #fff;
            border-radius: 12px;
            padding: 1.8rem;
            margin: 2rem 0;
            box-shadow: 0 2px 12px rgba(0,0,0,0.05);
            border: 1px solid #eef2f7;
        }
        .comment-section h3, .rating-section h3 { margin-top: 0; }
        .comment-form textarea {
            width: 100%;
            padding: 0.75rem 1rem;
            border: 2px solid #dce3ed;
            border-radius: 8px;
            font-size: 1rem;
            font-family: inherit;
            resize: vertical;
            min-height: 100px;
            transition: border 0.3s;
            outline: none;
        }
        .comment-form textarea:focus { border-color: #f0c27f; }
        .comment-form .form-group { margin-bottom: 1rem; }
        .comment-form input[type="text"] {
            width: 100%;
            padding: 0.65rem 1rem;
            border: 2px solid #dce3ed;
            border-radius: 8px;
            font-size: 1rem;
            outline: none;
            transition: border 0.3s;
        }
        .comment-form input[type="text"]:focus { border-color: #f0c27f; }
        .btn {
            background: #0d1b2a;
            color: #f0c27f;
            border: none;
            padding: 0.7rem 1.8rem;
            border-radius: 8px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s, transform 0.2s;
        }
        .btn:hover { background: #1b2a4a; transform: translateY(-1px); }
        .btn-secondary { background: #7f8c9b; color: #fff; }
        .btn-secondary:hover { background: #6b7887; }
        .star-rating {
            display: flex;
            gap: 0.3rem;
            font-size: 1.8rem;
            color: #dce3ed;
            cursor: pointer;
            margin: 0.5rem 0;
        }
        .star-rating i.active { color: #f0c27f; }
        .star-rating i:hover, .star-rating i.hover { color: #f7d9a0; }
        .site-footer {
            background: #0d1b2a;
            color: rgba(255,255,255,0.8);
            padding: 2.5rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2rem;
        }
        .site-footer h4 { color: #f0c27f; margin-bottom: 0.8rem; font-size: 1.1rem; }
        .site-footer a { color: rgba(255,255,255,0.75); }
        .site-footer a:hover { color: #f0c27f; text-decoration: none; }
        .friend-link { display: block; padding: 0.3rem 0; }
        .copyright {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 1.5rem;
            margin-top: 2rem;
            text-align: center;
            font-size: 0.9rem;
            color: rgba(255,255,255,0.5);
        }
        @media (max-width: 1024px) {
            .content-grid { grid-template-columns: 1fr; }
            .sidebar { order: 2; }
        }
        @media (max-width: 768px) {
            .nav-toggle { display: block; }
            .nav-menu {
                display: none;
                flex-direction: column;
                width: 100%;
                margin-top: 1rem;
                gap: 0.5rem;
                background: rgba(13,27,42,0.98);
                padding: 1rem 0;
                border-radius: 12px;
            }
            .nav-menu.open { display: flex; }
            .nav-menu a { padding: 0.6rem 1rem; border-bottom: none; }
            h1 { font-size: 1.9rem; }
            h2 { font-size: 1.5rem; }
            h3 { font-size: 1.25rem; }
            .footer-grid { grid-template-columns: 1fr; }
            .header-inner { position: relative; }
            .my-logo { font-size: 1.4rem; }
            .star-rating { font-size: 1.5rem; }
        }
        @media (max-width: 480px) {
            .container { padding: 0 12px; }
            .step-card { padding: 1rem; }
            .search-form { flex-direction: column; }
            .search-form button { padding: 0.7rem; }
        }
        .text-muted { color: #7f8c9b; }
        .mt-1 { margin-top: 1rem; }
        .mb-1 { margin-bottom: 1rem; }
        .flex { display: flex; align-items: center; gap: 0.5rem; }
        .gap-1 { gap: 1rem; }
        .last-updated { font-size: 0.9rem; color: #7f8c9b; margin-bottom: 1.5rem; display: flex; align-items: center; gap: 0.5rem; }
        .featured-img {
            border-radius: 12px;
            margin: 1.8rem 0;
            box-shadow: 0 4px 20px rgba(0,0,0,0.08);
            width: 100%;
            background: linear-gradient(135deg, #eef2f7, #dce3ed);
            min-height: 200px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #7f8c9b;
            font-size: 1.1rem;
            padding: 2rem;
            text-align: center;
        }
        .featured-img img { width: 100%; border-radius: 12px; object-fit: cover; }