*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        body {
            font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            background: #fbfaf8;
            color: #1e1e2a;
            line-height: 1.7;
            font-size: 1.0625rem;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        a {
            color: #b31b1b;
            text-decoration: underline;
            text-underline-offset: 2px;
            transition: color 0.2s;
        }
        a:hover {
            color: #7f1111;
        }
        h1,
        h2,
        h3,
        h4 {
            line-height: 1.25;
            color: #0f1a2e;
            margin-top: 1.8em;
            margin-bottom: 0.6em;
        }
        h1 {
            font-size: 2.4rem;
            margin-top: 0.4em;
        }
        h2 {
            font-size: 1.8rem;
            border-left: 5px solid #b31b1b;
            padding-left: 0.75rem;
        }
        h3 {
            font-size: 1.4rem;
        }
        h4 {
            font-size: 1.15rem;
            font-weight: 600;
        }
        p {
            margin-bottom: 1.2rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.2rem;
        }
        .site-header {
            background: linear-gradient(135deg, #0f1a2e 0%, #1a2a44 100%);
            color: #fff;
            padding: 0.8rem 0;
            position: sticky;
            top: 0;
            z-index: 50;
            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: 1.9rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: #fff;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .my-logo i {
            color: #f9d342;
            font-size: 2rem;
        }
        .my-logo span {
            background: #f9d342;
            color: #0f1a2e;
            padding: 0 10px;
            border-radius: 6px;
            font-size: 1rem;
            margin-left: 6px;
        }
        .my-logo:hover {
            color: #f9d342;
        }
        .nav-toggle {
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            display: none;
            padding: 0.2rem 0.5rem;
        }
        .nav-menu {
            display: flex;
            gap: 1.5rem;
            list-style: none;
            align-items: center;
            flex-wrap: wrap;
        }
        .nav-menu a {
            color: #e8e8f0;
            text-decoration: none;
            font-weight: 500;
            font-size: 0.98rem;
            padding: 0.3rem 0;
            border-bottom: 2px solid transparent;
            transition: border-color 0.2s, color 0.2s;
        }
        .nav-menu a:hover {
            color: #f9d342;
            border-bottom-color: #f9d342;
        }
        .nav-menu .active {
            color: #f9d342;
            border-bottom-color: #f9d342;
        }
        .breadcrumb {
            padding: 0.8rem 0 0.4rem;
            font-size: 0.9rem;
            color: #6b7280;
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem;
        }
        .breadcrumb a {
            color: #b31b1b;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb span {
            color: #6b7280;
        }
        .hero-img-wrap {
            margin: 1.8rem 0 1.2rem;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
        }
        .hero-img-wrap img {
            width: 100%;
            object-fit: cover;
            max-height: 420px;
        }
        .meta-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            font-size: 0.95rem;
            color: #6b7280;
            margin: 1rem 0 1.8rem;
            padding-bottom: 0.8rem;
            border-bottom: 1px solid #e5e7eb;
        }
        .meta-bar i {
            margin-right: 0.4rem;
            color: #b31b1b;
        }
        .last-updated {
            font-weight: 600;
            color: #0f1a2e;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            margin: 2rem 0;
        }
        .main-article {
            min-width: 0;
        }
        .sidebar {
            position: sticky;
            top: 6rem;
            align-self: start;
        }
        .sidebar-card {
            background: #f1f3f6;
            border-radius: 16px;
            padding: 1.6rem;
            margin-bottom: 1.8rem;
        }
        .sidebar-card h3 {
            font-size: 1.2rem;
            margin-top: 0;
            margin-bottom: 1rem;
            border-left: 4px solid #b31b1b;
            padding-left: 0.6rem;
        }
        .link-list {
            list-style: none;
            padding: 0;
        }
        .link-list li {
            margin-bottom: 0.6rem;
            padding-left: 1.2rem;
            position: relative;
        }
        .link-list li::before {
            content: "⚡";
            position: absolute;
            left: 0;
            color: #b31b1b;
            font-size: 0.8rem;
        }
        .link-list a {
            font-size: 0.95rem;
            word-break: break-word;
        }
        .feature-section {
            background: #f8f6f2;
            border-radius: 20px;
            padding: 2rem 2rem 2.4rem;
            margin: 2.5rem 0;
            border: 1px solid #e8e3dc;
        }
        .feature-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
        }
        .feature-card {
            background: #fff;
            border-radius: 16px;
            padding: 1.8rem;
            box-shadow: 0 4px 14px rgba(0, 0, 0, 0.03);
            border: 1px solid #edeae4;
        }
        .feature-card h3 {
            margin-top: 0;
            font-size: 1.25rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .feature-card input,
        .feature-card textarea,
        .feature-card select {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 1px solid #d1d5db;
            border-radius: 10px;
            font-size: 1rem;
            margin-top: 0.5rem;
            background: #fafafa;
            transition: border 0.2s;
        }
        .feature-card input:focus,
        .feature-card textarea:focus,
        .feature-card select:focus {
            border-color: #b31b1b;
            outline: none;
            box-shadow: 0 0 0 3px rgba(179, 27, 27, 0.1);
        }
        .feature-card textarea {
            min-height: 90px;
            resize: vertical;
        }
        .btn {
            background: #b31b1b;
            color: #fff;
            border: none;
            padding: 0.7rem 1.8rem;
            border-radius: 30px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: inline-block;
            margin-top: 0.8rem;
        }
        .btn:hover {
            background: #7f1111;
            transform: scale(1.02);
        }
        .btn i {
            margin-right: 0.4rem;
        }
        .rating-stars {
            display: flex;
            gap: 0.4rem;
            font-size: 1.8rem;
            color: #d1d5db;
            cursor: pointer;
            margin: 0.6rem 0 0.4rem;
        }
        .rating-stars i {
            transition: color 0.15s;
        }
        .rating-stars i.active,
        .rating-stars i:hover {
            color: #f9d342;
        }
        .rating-stars i:hover~i {
            color: #d1d5db;
        }
        .site-footer {
            background: #0f1a2e;
            color: #c8cdd6;
            padding: 2.8rem 0 1.8rem;
            margin-top: 3rem;
            border-radius: 30px 30px 0 0;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2.5rem;
        }
        .footer-inner h4 {
            color: #fff;
            margin-top: 0;
            font-size: 1.1rem;
        }
        .footer-inner a {
            color: #b0b8c8;
            text-decoration: none;
        }
        .footer-inner a:hover {
            color: #f9d342;
        }
        .footer-links {
            list-style: none;
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 0.5rem;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid #2a3a54;
            font-size: 0.9rem;
            color: #8892a8;
        }
        friend-link {
            display: block;
            background: #1a2a44;
            padding: 1.2rem 1.6rem;
            border-radius: 16px;
            margin: 1.2rem 0 0;
            font-size: 0.95rem;
        }
        friend-link a {
            color: #f9d342;
            text-decoration: none;
            margin: 0 0.8rem 0 0;
            display: inline-block;
        }
        friend-link a:hover {
            text-decoration: underline;
        }
        friend-link::before {
            content: "🤝 Friend Links: ";
            font-weight: 600;
            color: #fff;
            margin-right: 0.5rem;
        }
        @media (max-width: 900px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                order: 2;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
            .nav-menu {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #1a2a44;
                padding: 1rem 0;
                border-radius: 0 0 16px 16px;
                gap: 0.2rem;
                margin-top: 0.8rem;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu a {
                padding: 0.6rem 1.2rem;
                border-bottom: none;
                width: 100%;
            }
            .nav-menu a:hover {
                background: #2a3a54;
                border-bottom: none;
            }
            .nav-toggle {
                display: block;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            .container {
                padding: 0 1rem;
            }
            .feature-section {
                padding: 1.4rem;
            }
            .meta-bar {
                gap: 0.8rem;
                font-size: 0.85rem;
            }
        }
        @media (max-width: 600px) {
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .header-inner {
                flex-wrap: nowrap;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .my-logo span {
                font-size: 0.7rem;
                padding: 0 6px;
            }
            .breadcrumb {
                font-size: 0.8rem;
            }
            .rating-stars {
                font-size: 1.5rem;
            }
            .btn {
                padding: 0.6rem 1.4rem;
                font-size: 0.95rem;
            }
        }
        .author-badge {
            display: flex;
            align-items: center;
            gap: 0.8rem;
            background: #f1f3f6;
            padding: 0.8rem 1.2rem;
            border-radius: 40px;
            margin: 1rem 0 0.4rem;
            font-size: 0.9rem;
            width: fit-content;
        }
        .author-badge i {
            font-size: 1.6rem;
            color: #b31b1b;
        }
        .highlight-box {
            background: #fef9e7;
            border-left: 5px solid #f9d342;
            padding: 1.2rem 1.6rem;
            border-radius: 0 12px 12px 0;
            margin: 1.5rem 0;
        }
        .highlight-box strong {
            color: #b31b1b;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.5rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
            background: #fff;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
        }
        th,
        td {
            padding: 0.8rem 1rem;
            text-align: left;
            border-bottom: 1px solid #e5e7eb;
        }
        th {
            background: #0f1a2e;
            color: #fff;
            font-weight: 600;
        }
        tr:last-child td {
            border-bottom: none;
        }
        .faq-item {
            padding: 0.8rem 0;
            border-bottom: 1px solid #e5e7eb;
        }
        .faq-item strong {
            color: #0f1a2e;
        }