*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; font-size: 16px; }
        body {
            font-family: 'Segoe UI', Roboto, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
            line-height: 1.7;
            color: #1e1e2a;
            background: #faf9f6;
            padding: 0;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: #0057b3; text-decoration: none; transition: color 0.2s; }
        a:hover { color: #e85d3a; text-decoration: underline; }
        a:focus-visible { outline: 3px solid #e85d3a; outline-offset: 2px; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; color: #0f1a2e; font-weight: 700; }
        h1 { font-size: 2.4rem; margin-bottom: 0.75rem; }
        h2 { font-size: 1.8rem; margin-top: 2.5rem; margin-bottom: 0.7rem; border-bottom: 3px solid #e85d3a; padding-bottom: 0.3rem; }
        h3 { font-size: 1.35rem; margin-top: 1.8rem; margin-bottom: 0.5rem; color: #1e2a4a; }
        h4 { font-size: 1.1rem; margin-top: 1.2rem; margin-bottom: 0.3rem; color: #2c3e5c; }
        p { margin-bottom: 1.1rem; }
        ul, ol { margin-bottom: 1.2rem; padding-left: 1.5rem; }
        li { margin-bottom: 0.3rem; }
        strong { color: #0f1a2e; }
        blockquote {
            border-left: 5px solid #e85d3a;
            background: #f1ede8;
            padding: 0.8rem 1.2rem;
            margin: 1.2rem 0;
            font-style: italic;
            color: #2c3e5c;
            border-radius: 0 8px 8px 0;
        }
        .container {
            max-width: 1180px;
            margin: 0 auto;
            padding: 0 1.2rem;
        }
        .site-header {
            background: #0f1a2e;
            color: #fff;
            padding: 0.6rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0,0,0,0.15);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #f9d976, #e85d3a);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-decoration: none;
        }
        .my-logo:hover { text-decoration: none; opacity: 0.9; }
        .my-logo i { margin-right: 6px; -webkit-text-fill-color: #e85d3a; }
        .nav-toggle {
            background: none;
            border: 2px solid rgba(255,255,255,0.3);
            color: #fff;
            font-size: 1.4rem;
            padding: 0.3rem 0.7rem;
            border-radius: 6px;
            cursor: pointer;
            display: none;
            transition: background 0.2s;
        }
        .nav-toggle:hover { background: rgba(255,255,255,0.1); }
        .main-nav {
            display: flex;
            gap: 0.2rem;
            flex-wrap: wrap;
            align-items: center;
        }
        .main-nav a {
            color: #ddd;
            padding: 0.4rem 0.9rem;
            border-radius: 6px;
            font-size: 0.92rem;
            font-weight: 500;
            transition: background 0.2s, color 0.2s;
        }
        .main-nav a:hover {
            background: rgba(255,255,255,0.12);
            color: #fff;
            text-decoration: none;
        }
        .main-nav a i { margin-right: 4px; }
        .breadcrumb {
            background: #eae7e0;
            padding: 0.5rem 0;
            font-size: 0.85rem;
            color: #444;
        }
        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin: 0 0.5rem;
            color: #888;
        }
        .breadcrumb a { color: #0057b3; }
        .hero {
            background: linear-gradient(135deg, #0f1a2e 0%, #1e2a4a 100%);
            color: #fff;
            padding: 2.5rem 0 2rem;
            text-align: center;
        }
        .hero h1 { color: #fff; font-size: 2.6rem; }
        .hero p { font-size: 1.15rem; opacity: 0.9; max-width: 720px; margin: 0.5rem auto 0; }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            padding: 2rem 0;
        }
        .main-article { min-width: 0; }
        .sidebar {
            background: #f1ede8;
            border-radius: 12px;
            padding: 1.5rem;
            height: fit-content;
            position: sticky;
            top: 80px;
        }
        .sidebar h3 { margin-top: 0; border-bottom: 2px solid #e85d3a; padding-bottom: 0.4rem; }
        .sidebar ul { list-style: none; padding: 0; }
        .sidebar li { margin-bottom: 0.5rem; }
        .sidebar a { display: block; padding: 0.4rem 0.6rem; border-radius: 6px; transition: background 0.2s; font-weight: 500; }
        .sidebar a:hover { background: #e0d9d0; text-decoration: none; }
        .featured-image {
            border-radius: 12px;
            overflow: hidden;
            margin: 1.5rem 0;
            box-shadow: 0 6px 20px rgba(0,0,0,0.1);
        }
        .featured-image img { width: 100%; }
        .update-badge {
            display: inline-block;
            background: #e85d3a;
            color: #fff;
            padding: 0.2rem 0.8rem;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.3px;
        }
        .interactive-module {
            background: #fff;
            border-radius: 12px;
            padding: 1.5rem;
            margin: 1.8rem 0;
            box-shadow: 0 4px 16px rgba(0,0,0,0.06);
            border: 1px solid #e5e0d8;
        }
        .interactive-module h3 { margin-top: 0; display: flex; align-items: center; gap: 8px; }
        .interactive-module form { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: 0.6rem; }
        .interactive-module input, .interactive-module textarea, .interactive-module select {
            flex: 1 1 200px;
            padding: 0.6rem 0.9rem;
            border: 1px solid #ccc;
            border-radius: 8px;
            font-size: 0.95rem;
            font-family: inherit;
            transition: border 0.2s;
        }
        .interactive-module input:focus, .interactive-module textarea:focus, .interactive-module select:focus {
            border-color: #e85d3a;
            outline: none;
            box-shadow: 0 0 0 3px rgba(232,93,58,0.15);
        }
        .interactive-module textarea { min-height: 70px; flex-basis: 100%; }
        .interactive-module button {
            background: #e85d3a;
            color: #fff;
            border: none;
            padding: 0.6rem 1.5rem;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            font-size: 0.95rem;
        }
        .interactive-module button:hover { background: #d04a2a; transform: translateY(-1px); }
        .interactive-module button:active { transform: translateY(0); }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 4px;
            margin: 0.4rem 0;
        }
        .star-rating input { display: none; }
        .star-rating label {
            font-size: 1.6rem;
            color: #ccc;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f5b342;
        }
        .site-footer {
            background: #0f1a2e;
            color: #bbb;
            padding: 2rem 0 1.2rem;
            margin-top: 2.5rem;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
        }
        .site-footer h4 { color: #fff; margin-bottom: 0.6rem; }
        .site-footer a { color: #d4b49a; }
        .site-footer a:hover { color: #fff; }
        friend-link {
            display: block;
            margin-top: 0.5rem;
        }
        friend-link a {
            display: inline-block;
            margin-right: 1.2rem;
            margin-bottom: 0.3rem;
        }
        .copyright {
            text-align: center;
            padding-top: 1.2rem;
            border-top: 1px solid rgba(255,255,255,0.08);
            margin-top: 1.5rem;
            font-size: 0.85rem;
            color: #888;
        }
        @media (max-width: 900px) {
            .content-grid { grid-template-columns: 1fr; }
            .sidebar { position: static; margin-top: 1.5rem; }
            .hero h1 { font-size: 2rem; }
            h1 { font-size: 1.8rem; }
            h2 { font-size: 1.5rem; }
        }
        @media (max-width: 680px) {
            .nav-toggle { display: block; }
            .main-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                margin-top: 0.6rem;
                background: #1a2a42;
                padding: 0.6rem;
                border-radius: 8px;
            }
            .main-nav.open { display: flex; }
            .main-nav a { padding: 0.6rem; }
            .header-inner { align-items: center; }
            .hero h1 { font-size: 1.6rem; }
            .footer-inner { grid-template-columns: 1fr; }
            .interactive-module form { flex-direction: column; }
            .interactive-module input, .interactive-module textarea { flex-basis: auto; }
            .sidebar { padding: 1rem; }
        }
        @media (max-width: 480px) {
            html { font-size: 15px; }
            .container { padding: 0 0.8rem; }
            .hero { padding: 1.5rem 0; }
            .hero h1 { font-size: 1.4rem; }
            h2 { font-size: 1.3rem; }
        }
        .text-muted { color: #666; font-size: 0.9rem; }
        .mt-1 { margin-top: 1rem; }
        .mb-1 { margin-bottom: 1rem; }
        .flex-between { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 0.5rem; }
        .pill { display: inline-block; background: #eae7e0; padding: 0.1rem 0.6rem; border-radius: 12px; font-size: 0.75rem; color: #444; }
        :target { scroll-margin-top: 70px; }