* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
            background: #faf9f6;
            color: #1e1e1e;
            line-height: 1.7;
            font-size: 17px;
            padding: 0 16px;
        }
        .wrapper {
            max-width: 1200px;
            margin: 0 auto;
            background: #ffffff;
            box-shadow: 0 0 40px rgba(0, 0, 0, 0.04);
            padding: 0 24px 40px;
            border-radius: 0 0 32px 32px;
        }
        .site-header {
            padding: 24px 0 12px;
            border-bottom: 2px solid #eae7e0;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            position: relative;
        }
        .my-logo {
            font-size: 2.1rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            text-decoration: none;
            color: #0a2a44;
            background: linear-gradient(145deg, #0a2a44, #1c4e6e);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .my-logo i {
            background: #d4a24e;
            -webkit-text-fill-color: #d4a24e;
            font-size: 2rem;
        }
        .my-logo span {
            font-size: 0.85rem;
            font-weight: 400;
            color: #6b6b6b;
            -webkit-text-fill-color: #6b6b6b;
            display: block;
            letter-spacing: 0.3px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: #0a2a44;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: #f0ede8;
        }
        .main-nav {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px 20px;
            transition: all 0.3s ease;
        }
        .main-nav a {
            text-decoration: none;
            color: #2c3e50;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 6px 0;
            border-bottom: 2px solid transparent;
            transition: border-color 0.2s, color 0.2s;
        }
        .main-nav a:hover {
            border-bottom-color: #d4a24e;
            color: #0a2a44;
        }
        .main-nav a.active {
            border-bottom-color: #d4a24e;
            color: #0a2a44;
        }
        .breadcrumb {
            padding: 16px 0 8px;
            font-size: 0.85rem;
            color: #6b6b6b;
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            align-items: center;
        }
        .breadcrumb a {
            color: #1c4e6e;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb i {
            font-size: 0.6rem;
            color: #b0a89a;
        }
        .hero {
            padding: 32px 0 24px;
            text-align: center;
        }
        .hero h1 {
            font-size: 3.2rem;
            font-weight: 800;
            line-height: 1.15;
            color: #0a2a44;
            letter-spacing: -0.8px;
            max-width: 900px;
            margin: 0 auto 16px;
        }
        .hero .subhead {
            font-size: 1.15rem;
            color: #4a4a4a;
            max-width: 720px;
            margin: 0 auto 20px;
            font-weight: 400;
        }
        .hero .meta-info {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px 32px;
            font-size: 0.9rem;
            color: #6b6b6b;
        }
        .hero .meta-info i {
            margin-right: 6px;
            color: #d4a24e;
        }
        .last-updated {
            font-weight: 600;
            color: #1c4e6e;
        }
        .featured-image {
            margin: 28px 0 32px;
            border-radius: 24px;
            overflow: hidden;
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
            background: #eae7e0;
            text-align: center;
        }
        .featured-image img {
            width: 100%;
            height: auto;
            display: block;
            max-height: 520px;
            object-fit: cover;
        }
        .featured-image .caption {
            padding: 12px 20px;
            font-size: 0.85rem;
            color: #4a4a4a;
            background: #f7f5f1;
            text-align: left;
            font-style: italic;
        }
        .content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 16px 0 32px;
        }
        .content-article {
            min-width: 0;
        }
        .content-article h2 {
            font-size: 2.0rem;
            font-weight: 700;
            color: #0a2a44;
            margin: 48px 0 16px;
            padding-bottom: 8px;
            border-bottom: 3px solid #d4a24e;
            line-height: 1.3;
        }
        .content-article h3 {
            font-size: 1.5rem;
            font-weight: 600;
            color: #1c4e6e;
            margin: 32px 0 12px;
            line-height: 1.35;
        }
        .content-article h4 {
            font-size: 1.2rem;
            font-weight: 600;
            color: #2c3e50;
            margin: 24px 0 8px;
            line-height: 1.4;
        }
        .content-article p {
            margin-bottom: 18px;
            color: #2c2c2c;
        }
        .content-article ul,
        .content-article ol {
            margin: 12px 0 22px 24px;
            color: #2c2c2c;
        }
        .content-article li {
            margin-bottom: 8px;
        }
        .content-article strong {
            color: #0a2a44;
        }
        .content-article .highlight-box {
            background: #f4f1eb;
            border-left: 6px solid #d4a24e;
            padding: 18px 24px;
            border-radius: 12px;
            margin: 24px 0;
            font-style: normal;
        }
        .content-article .highlight-box i {
            color: #d4a24e;
            margin-right: 8px;
        }
        .inline-link {
            color: #1c4e6e;
            text-decoration: none;
            font-weight: 500;
            border-bottom: 1px dotted #b0c4d4;
            transition: border-color 0.2s, color 0.2s;
        }
        .inline-link:hover {
            border-bottom-color: #d4a24e;
            color: #0a2a44;
        }
        .emoji-big {
            font-size: 1.4em;
            line-height: 1;
        }
        .sidebar {
            position: sticky;
            top: 24px;
            align-self: start;
        }
        .sidebar-box {
            background: #f7f5f1;
            border-radius: 20px;
            padding: 24px 20px;
            margin-bottom: 28px;
            border: 1px solid #eae7e0;
        }
        .sidebar-box h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: #0a2a44;
            margin-bottom: 12px;
            border-bottom: 2px solid #d4a24e;
            padding-bottom: 6px;
        }
        .sidebar-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .sidebar-links li {
            margin-bottom: 10px;
        }
        .sidebar-links a {
            text-decoration: none;
            color: #1c4e6e;
            font-size: 0.92rem;
            display: flex;
            gap: 8px;
            align-items: baseline;
            transition: color 0.2s;
        }
        .sidebar-links a:hover {
            color: #0a2a44;
            text-decoration: underline;
        }
        .sidebar-links a i {
            color: #d4a24e;
            font-size: 0.75rem;
            margin-top: 4px;
        }
        .form-card {
            background: #ffffff;
            border: 1px solid #e0dcd4;
            border-radius: 16px;
            padding: 20px 22px;
            margin: 28px 0;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.03);
        }
        .form-card h3 {
            margin-top: 0;
            font-size: 1.2rem;
            color: #0a2a44;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .form-card h3 i {
            color: #d4a24e;
        }
        .form-group {
            margin-bottom: 16px;
        }
        .form-group label {
            display: block;
            font-weight: 500;
            margin-bottom: 4px;
            font-size: 0.9rem;
            color: #2c3e50;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid #d0ccc4;
            border-radius: 10px;
            font-size: 0.95rem;
            font-family: inherit;
            background: #faf9f6;
            transition: border-color 0.2s, box-shadow 0.2s;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            outline: none;
            border-color: #d4a24e;
            box-shadow: 0 0 0 3px rgba(212, 162, 78, 0.15);
            background: #ffffff;
        }
        .form-group textarea {
            min-height: 80px;
            resize: vertical;
        }
        .btn {
            background: #0a2a44;
            color: #fff;
            border: none;
            padding: 10px 28px;
            border-radius: 30px;
            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: #1c4e6e;
            transform: scale(1.02);
        }
        .btn-outline {
            background: transparent;
            color: #0a2a44;
            border: 2px solid #0a2a44;
        }
        .btn-outline:hover {
            background: #0a2a44;
            color: #fff;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            gap: 4px;
            justify-content: flex-end;
            font-size: 1.6rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            color: #d0ccc4;
            cursor: pointer;
            transition: color 0.15s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f5b342;
        }
        .site-footer {
            border-top: 2px solid #eae7e0;
            padding: 32px 0 20px;
            margin-top: 40px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 24px;
        }
        .footer-col h5 {
            font-size: 1rem;
            font-weight: 700;
            color: #0a2a44;
            margin-bottom: 12px;
        }
        .footer-col p,
        .footer-col a {
            font-size: 0.9rem;
            color: #4a4a4a;
            text-decoration: none;
            display: block;
            margin-bottom: 6px;
        }
        .footer-col a:hover {
            color: #0a2a44;
            text-decoration: underline;
        }
        friend-link {
            display: block;
            padding: 16px 0;
            border-top: 1px solid #eae7e0;
            font-size: 0.9rem;
            color: #4a4a4a;
        }
        friend-link a {
            color: #1c4e6e;
            text-decoration: none;
            margin: 0 4px;
        }
        friend-link a:hover {
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            padding: 16px 0 4px;
            font-size: 0.85rem;
            color: #6b6b6b;
            border-top: 1px solid #eae7e0;
            margin-top: 12px;
        }
        .copyright strong {
            color: #0a2a44;
        }
        @media (max-width: 900px) {
            .content {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .sidebar {
                position: static;
                order: 2;
            }
            .hero h1 {
                font-size: 2.4rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .my-logo {
                font-size: 1.6rem;
            }
        }
        @media (max-width: 700px) {
            body {
                padding: 0 8px;
            }
            .wrapper {
                padding: 0 12px 24px;
            }
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                padding: 16px 0 8px;
                gap: 4px;
                border-top: 1px solid #eae7e0;
                margin-top: 12px;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 10px 0;
                width: 100%;
                border-bottom: 1px solid #f0ede8;
            }
            .hero h1 {
                font-size: 1.9rem;
            }
            .hero .subhead {
                font-size: 1rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .content-article h2 {
                font-size: 1.6rem;
            }
            .content-article h3 {
                font-size: 1.25rem;
            }
            .form-card {
                padding: 16px;
            }
        }
        @media (max-width: 480px) {
            .hero h1 {
                font-size: 1.6rem;
            }
            .my-logo {
                font-size: 1.3rem;
            }
            .my-logo span {
                font-size: 0.7rem;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
            .star-rating {
                font-size: 1.4rem;
            }
        }
        .toc {
            background: #f4f1eb;
            border-radius: 16px;
            padding: 18px 22px;
            margin: 24px 0 32px;
            border: 1px solid #e0dcd4;
        }
        .toc summary {
            font-weight: 700;
            font-size: 1.1rem;
            color: #0a2a44;
            cursor: pointer;
            padding: 4px 0;
        }
        .toc ol {
            margin: 12px 0 0 20px;
            columns: 2;
            column-gap: 32px;
        }
        .toc ol li {
            margin-bottom: 4px;
            break-inside: avoid;
        }
        .toc ol a {
            color: #1c4e6e;
            text-decoration: none;
            font-size: 0.92rem;
        }
        .toc ol a:hover {
            text-decoration: underline;
            color: #0a2a44;
        }
        @media (max-width: 600px) {
            .toc ol {
                columns: 1;
            }
        }
        html {
            scroll-behavior: smooth;
        }
        ::selection {
            background: #d4a24e33;
            color: #0a2a44;
        }