*,
        *::before,
        *::after {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, sans-serif;
            background: #f5f7fc;
            color: #1a1a2e;
            line-height: 1.7;
            padding: 0 16px;
        }
        a {
            color: #1e4a7a;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover {
            color: #e63946;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        h1,
        h2,
        h3,
        h4 {
            color: #0b1e33;
            line-height: 1.3;
            margin-top: 1.8rem;
            margin-bottom: 0.6rem;
        }
        h1 {
            font-size: 2.2rem;
            border-left: 6px solid #e63946;
            padding-left: 18px;
            margin-top: 0.4rem;
        }
        h2 {
            font-size: 1.7rem;
            border-bottom: 2px solid #cbd5e1;
            padding-bottom: 6px;
        }
        h3 {
            font-size: 1.35rem;
            color: #1e3a5f;
        }
        h4 {
            font-size: 1.1rem;
            color: #2c3e50;
        }
        p {
            margin-bottom: 1.1rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            background: #ffffff;
            border-radius: 20px;
            padding: 20px 28px 32px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.05);
        }
        .site-header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0 16px;
            border-bottom: 1px solid #e2e8f0;
            position: relative;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #0b1e33, #1e4a7a);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .my-logo i {
            -webkit-text-fill-color: #e63946;
            font-size: 2rem;
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .main-nav {
            display: flex;
            gap: 6px 18px;
            flex-wrap: wrap;
            list-style: none;
            padding: 0;
        }
        .main-nav li a {
            font-weight: 600;
            font-size: 0.95rem;
            padding: 6px 10px;
            border-radius: 40px;
            transition: background 0.2s, color 0.2s;
        }
        .main-nav li a:hover {
            background: #eef2f7;
            color: #e63946;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: #1a1a2e;
            cursor: pointer;
            padding: 4px 8px;
        }
        .hamburger:focus {
            outline: 2px solid #1e4a7a;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 6px 10px;
            font-size: 0.9rem;
            padding: 12px 0 6px;
            color: #4a5568;
        }
        .breadcrumb i {
            font-size: 0.75rem;
            color: #94a3b8;
        }
        .breadcrumb a {
            color: #1e4a7a;
        }
        .breadcrumb span {
            color: #475569;
        }
        .search-block {
            background: #f1f5f9;
            border-radius: 60px;
            padding: 6px 6px 6px 20px;
            display: flex;
            align-items: center;
            max-width: 480px;
            margin: 18px 0 22px;
            border: 1px solid #dce3ed;
        }
        .search-block i {
            color: #64748b;
            font-size: 1rem;
            margin-right: 8px;
        }
        .search-block input {
            border: none;
            background: transparent;
            flex: 1;
            padding: 10px 6px;
            font-size: 0.95rem;
            outline: none;
            min-width: 0;
        }
        .search-block button {
            background: #1e4a7a;
            border: none;
            color: #fff;
            font-weight: 600;
            padding: 8px 22px;
            border-radius: 40px;
            cursor: pointer;
            font-size: 0.9rem;
            transition: background 0.25s;
            white-space: nowrap;
        }
        .search-block button:hover {
            background: #e63946;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 28px;
        }
        @media(min-width:900px) {
            .content-grid {
                grid-template-columns: 2fr 1fr;
            }
        }
        .featured-img-wrapper {
            margin: 20px 0 28px;
            border-radius: 16px;
            overflow: hidden;
            background: #eef2f7;
            position: relative;
        }
        .featured-img-wrapper img {
            width: 100%;
            max-height: 420px;
            object-fit: cover;
        }
        .featured-img-wrapper .img-caption {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: rgba(0, 0, 0, 0.55);
            color: #fff;
            padding: 10px 18px;
            font-size: 0.9rem;
            backdrop-filter: blur(2px);
        }
        .interaction-panel {
            background: #f8fafc;
            border-radius: 16px;
            padding: 24px 22px;
            margin-top: 30px;
            border: 1px solid #e2e8f0;
        }
        .interaction-panel h3 {
            margin-top: 0;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-bottom: 18px;
        }
        .form-group label {
            font-weight: 600;
            font-size: 0.95rem;
        }
        .form-group input,
        .form-group textarea {
            padding: 12px 16px;
            border: 1px solid #cbd5e1;
            border-radius: 12px;
            font-size: 0.95rem;
            font-family: inherit;
            background: #fff;
            transition: border 0.2s;
        }
        .form-group input:focus,
        .form-group textarea:focus {
            border-color: #1e4a7a;
            outline: none;
            box-shadow: 0 0 0 3px rgba(30, 74, 122, 0.1);
        }
        .form-group textarea {
            min-height: 90px;
            resize: vertical;
        }
        .btn {
            background: #1e4a7a;
            color: #fff;
            border: none;
            padding: 12px 28px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background 0.25s, transform 0.1s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn:hover {
            background: #e63946;
            transform: scale(1.01);
            text-decoration: none;
            color: #fff;
        }
        .btn-secondary {
            background: #2d3748;
        }
        .btn-secondary:hover {
            background: #e63946;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 4px;
            font-size: 1.6rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            cursor: pointer;
            color: #cbd5e1;
            transition: color 0.15s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f59e0b;
        }
        friend-link {
            display: block;
            padding: 12px 0;
        }
        friend-link a {
            display: inline-block;
            margin: 4px 12px 4px 0;
            background: #eef2f7;
            padding: 4px 16px;
            border-radius: 40px;
            font-size: 0.9rem;
            font-weight: 500;
        }
        friend-link a:hover {
            background: #1e4a7a;
            color: #fff;
            text-decoration: none;
        }
        .site-footer {
            border-top: 1px solid #e2e8f0;
            padding-top: 20px;
            margin-top: 30px;
            font-size: 0.9rem;
            color: #4a5568;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
        }
        .site-footer .copyright {
            font-weight: 500;
        }
        .site-footer .update-badge {
            background: #eef2f7;
            padding: 2px 14px;
            border-radius: 40px;
            font-size: 0.8rem;
        }
        @media(max-width:768px) {
            .container {
                padding: 14px 14px 24px;
            }
            h1 {
                font-size: 1.7rem;
                padding-left: 12px;
            }
            h2 {
                font-size: 1.35rem;
            }
            .site-header {
                flex-wrap: wrap;
            }
            .hamburger {
                display: inline-block;
            }
            .main-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                margin-top: 12px;
                background: #f8fafc;
                border-radius: 16px;
                padding: 12px 16px;
                border: 1px solid #e2e8f0;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav li a {
                padding: 8px 6px;
                display: block;
            }
            .search-block {
                flex-wrap: wrap;
                border-radius: 20px;
                padding: 8px 12px;
                gap: 6px;
            }
            .search-block input {
                width: 100%;
                padding: 8px 4px;
            }
            .search-block button {
                width: 100%;
                justify-content: center;
            }
            .interaction-panel {
                padding: 16px;
            }
            .star-rating {
                font-size: 1.4rem;
            }
            .site-footer {
                flex-direction: column;
                gap: 12px;
                text-align: center;
            }
            .featured-img-wrapper .img-caption {
                position: relative;
                background: #1e293b;
                color: #f1f5f9;
            }
        }
        @media(min-width:769px) {
            .main-nav {
                display: flex !important;
            }
        }
        .text-highlight {
            background: linear-gradient(to right, #fff7ed, #fffbeb);
            padding: 2px 8px;
            border-radius: 6px;
            font-weight: 600;
        }
        .card-stat {
            background: #f1f5f9;
            border-radius: 12px;
            padding: 16px 20px;
            margin: 16px 0;
            border-left: 4px solid #e63946;
        }
        .inline-list {
            display: inline-flex;
            flex-wrap: wrap;
            gap: 6px 16px;
            list-style: none;
            padding: 0;
        }
        .inline-list li::before {
            content: "▸ ";
            color: #e63946;
        }
        .emoji-big {
            font-size: 1.4rem;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 18px 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.92rem;
        }
        th,
        td {
            padding: 10px 14px;
            border: 1px solid #dce3ed;
            text-align: left;
        }
        th {
            background: #eef2f7;
            font-weight: 700;
        }
        .anchor-offset {
            scroll-margin-top: 80px;
        }
        .schema-hidden {
            display: none;
        }