*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', sans-serif;
            background: #faf8f5;
            color: #1e2a3a;
            line-height: 1.7;
            padding: 0;
        }
        a {
            color: #c94b1f;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover {
            color: #a03614;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.4rem;
        }
        li {
            margin-bottom: 0.4rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.2rem;
        }
        :root {
            --primary: #c94b1f;
            --primary-dark: #a03614;
            --secondary: #1e5f8e;
            --accent: #f5a623;
            --bg-light: #faf8f5;
            --bg-dark: #1e2a3a;
            --text-dark: #1e2a3a;
            --text-light: #faf8f5;
            --border: #e0d8d0;
            --card-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
            --radius: 12px;
        }
        .site-header {
            background: #1e2a3a;
            padding: 0.6rem 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 16px 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;
            letter-spacing: -0.5px;
            color: #f5a623;
            background: linear-gradient(135deg, #f5a623, #c94b1f);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-decoration: none !important;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .my-logo i {
            font-size: 1.8rem;
            color: #f5a623;
            -webkit-text-fill-color: #f5a623;
        }
        .my-logo:hover {
            opacity: 0.9;
        }
        .my-logo small {
            font-size: 0.7rem;
            font-weight: 400;
            color: rgba(255, 255, 255, 0.5);
            -webkit-text-fill-color: rgba(255, 255, 255, 0.5);
            margin-left: 0.3rem;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 0.2rem;
        }
        .main-nav a {
            color: rgba(255, 255, 255, 0.85);
            padding: 0.5rem 1rem;
            border-radius: 30px;
            font-size: 0.89rem;
            font-weight: 500;
            transition: background 0.25s, color 0.25s;
            text-decoration: none;
        }
        .main-nav a:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #f5a623;
            text-decoration: none;
        }
        .main-nav a i {
            margin-right: 0.3rem;
            font-size: 0.8rem;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.6rem;
            cursor: pointer;
            padding: 0.3rem 0.6rem;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.08);
        }
        .breadcrumb-wrap {
            background: #f0ebe5;
            padding: 0.6rem 0;
            font-size: 0.85rem;
        }
        .breadcrumb-wrap nav {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.3rem;
        }
        .breadcrumb-wrap nav a {
            color: #5a4a3a;
        }
        .breadcrumb-wrap nav span {
            color: #8a7a6a;
        }
        .breadcrumb-wrap nav .current {
            color: #c94b1f;
            font-weight: 600;
        }
        .main-content {
            padding: 2.4rem 0 3rem;
        }
        .article-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.4rem;
        }
        .article-body h1 {
            font-size: 2.2rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 0.8rem;
            color: #1e2a3a;
        }
        .article-body h1 i {
            color: #c94b1f;
            margin-right: 0.4rem;
        }
        .article-body .meta-line {
            display: flex;
            flex-wrap: wrap;
            gap: 1.2rem;
            color: #6a5a4a;
            font-size: 0.9rem;
            margin-bottom: 1.6rem;
            border-bottom: 1px solid var(--border);
            padding-bottom: 1rem;
        }
        .article-body .meta-line i {
            margin-right: 0.3rem;
            color: #c94b1f;
        }
        .article-body h2 {
            font-size: 1.7rem;
            font-weight: 700;
            margin-top: 2.4rem;
            margin-bottom: 0.8rem;
            color: #1e2a3a;
            border-left: 5px solid #c94b1f;
            padding-left: 1rem;
        }
        .article-body h3 {
            font-size: 1.3rem;
            font-weight: 600;
            margin-top: 1.8rem;
            margin-bottom: 0.5rem;
            color: #1e5f8e;
        }
        .article-body h4 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-top: 1.2rem;
            margin-bottom: 0.3rem;
            color: #2a4a6a;
        }
        .article-body p {
            margin-bottom: 1.1rem;
            color: #2a3a4a;
        }
        .article-body .feature-img {
            margin: 1.6rem 0;
            border-radius: 14px;
            box-shadow: var(--card-shadow);
        }
        .article-body .feature-img figcaption {
            font-size: 0.85rem;
            color: #6a5a4a;
            text-align: center;
            margin-top: 0.5rem;
            font-style: italic;
        }
        .article-body blockquote {
            border-left: 4px solid #c94b1f;
            padding: 1rem 1.6rem;
            margin: 1.4rem 0;
            background: #f0ebe5;
            border-radius: 0 12px 12px 0;
            font-style: italic;
            color: #3a4a5a;
        }
        .article-body blockquote strong {
            color: #c94b1f;
        }
        .article-body ul,
        .article-body ol {
            margin-bottom: 1.2rem;
        }
        .article-body .tip-box {
            background: #e8f0f8;
            border-radius: 12px;
            padding: 1.2rem 1.6rem;
            margin: 1.4rem 0;
            border-left: 5px solid #1e5f8e;
        }
        .article-body .tip-box i {
            color: #1e5f8e;
            margin-right: 0.4rem;
        }
        .article-body .highlight {
            background: #fef3e0;
            padding: 0.2rem 0.5rem;
            border-radius: 4px;
            font-weight: 600;
        }
        .sidebar {
            position: sticky;
            top: 80px;
            align-self: start;
        }
        .sidebar-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 1.4rem;
            margin-bottom: 1.6rem;
            box-shadow: var(--card-shadow);
            border: 1px solid var(--border);
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 0.8rem;
            color: #1e2a3a;
            border-bottom: 2px solid #f0ebe5;
            padding-bottom: 0.5rem;
        }
        .sidebar-card ul {
            list-style: none;
            padding-left: 0;
        }
        .sidebar-card ul li {
            padding: 0.4rem 0;
            border-bottom: 1px solid #f5f0eb;
        }
        .sidebar-card ul li a {
            color: #1e5f8e;
            font-weight: 500;
        }
        .sidebar-card ul li a:hover {
            color: #c94b1f;
        }
        .search-form {
            display: flex;
            gap: 0.4rem;
        }
        .search-form input {
            flex: 1;
            padding: 0.6rem 1rem;
            border: 2px solid var(--border);
            border-radius: 30px;
            font-size: 0.9rem;
            outline: none;
            transition: border 0.25s;
            background: #faf8f5;
        }
        .search-form input:focus {
            border-color: #c94b1f;
        }
        .search-form button {
            background: #c94b1f;
            color: #fff;
            border: none;
            border-radius: 30px;
            padding: 0.6rem 1.2rem;
            font-size: 0.9rem;
            cursor: pointer;
            transition: background 0.25s;
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }
        .search-form button:hover {
            background: #a03614;
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.6rem;
            margin: 2rem 0;
        }
        .feedback-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 1.6rem;
            box-shadow: var(--card-shadow);
            border: 1px solid var(--border);
        }
        .feedback-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: #1e2a3a;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .feedback-card h3 i {
            color: #c94b1f;
        }
        .feedback-card form label {
            font-size: 0.9rem;
            font-weight: 600;
            display: block;
            margin-bottom: 0.2rem;
            color: #3a4a5a;
        }
        .feedback-card form input,
        .feedback-card form textarea,
        .feedback-card form select {
            width: 100%;
            padding: 0.6rem 1rem;
            border: 2px solid var(--border);
            border-radius: 8px;
            font-size: 0.9rem;
            margin-bottom: 0.8rem;
            outline: none;
            transition: border 0.25s;
            background: #faf8f5;
            font-family: inherit;
        }
        .feedback-card form input:focus,
        .feedback-card form textarea:focus,
        .feedback-card form select:focus {
            border-color: #c94b1f;
        }
        .feedback-card form textarea {
            min-height: 80px;
            resize: vertical;
        }
        .feedback-card form .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.2rem;
            margin-bottom: 0.8rem;
        }
        .feedback-card form .star-rating input {
            display: none;
        }
        .feedback-card form .star-rating label {
            font-size: 1.6rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
            padding: 0 0.1rem;
        }
        .feedback-card form .star-rating label:hover,
        .feedback-card form .star-rating label:hover~label,
        .feedback-card form .star-rating input:checked~label {
            color: #f5a623;
        }
        .feedback-card form .btn-submit {
            background: #1e5f8e;
            color: #fff;
            border: none;
            border-radius: 30px;
            padding: 0.7rem 1.8rem;
            font-size: 0.95rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }
        .feedback-card form .btn-submit:hover {
            background: #154a6e;
        }
        .site-footer {
            background: #1e2a3a;
            color: rgba(255, 255, 255, 0.8);
            padding: 2.4rem 0 1.6rem;
            margin-top: 2rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2rem;
            margin-bottom: 1.6rem;
        }
        .footer-grid h4 {
            color: #f5a623;
            font-size: 1.1rem;
            margin-bottom: 0.8rem;
        }
        .footer-grid a {
            color: rgba(255, 255, 255, 0.7);
            display: inline-block;
            margin-bottom: 0.3rem;
        }
        .footer-grid a:hover {
            color: #f5a623;
        }
        friend-link {
            display: block;
            padding: 1rem 0;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 1rem;
        }
        friend-link a {
            color: rgba(255, 255, 255, 0.7);
            margin-right: 1.2rem;
            font-size: 0.9rem;
        }
        friend-link a:hover {
            color: #f5a623;
        }
        .copyright {
            text-align: center;
            padding-top: 1.2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
        }
        .copyright strong {
            color: rgba(255, 255, 255, 0.7);
        }
        @media (max-width: 992px) {
            .article-wrapper {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 1rem;
            }
            .sidebar .sidebar-card {
                margin-bottom: 0;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 0.2rem;
                padding: 0.8rem 0 0.4rem;
                border-top: 1px solid rgba(255, 255, 255, 0.08);
                margin-top: 0.6rem;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 0.5rem 0.8rem;
                width: 100%;
                border-radius: 8px;
            }
            .hamburger {
                display: block;
            }
            .breadcrumb-wrap nav {
                font-size: 0.78rem;
            }
            .article-body h1 {
                font-size: 1.6rem;
            }
            .article-body h2 {
                font-size: 1.3rem;
            }
            .article-body h3 {
                font-size: 1.1rem;
            }
            .feedback-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.2rem;
            }
            .my-logo {
                font-size: 1.3rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 0.8rem;
            }
            .article-body h1 {
                font-size: 1.4rem;
            }
            .search-form {
                flex-wrap: wrap;
            }
            .search-form input {
                width: 100%;
            }
            .search-form button {
                width: 100%;
                justify-content: center;
            }
        }
        @media print {
            .site-header,
            .breadcrumb-wrap,
            .sidebar,
            .feedback-grid,
            .site-footer {
                display: none !important;
            }
            .article-wrapper {
                display: block;
            }
            body {
                background: #fff;
                color: #000;
            }
        }