*,
        *::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: #f8faff;
            color: #1a2634;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        a {
            color: #f27a2a;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover {
            color: #c95e1a;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.5rem;
            margin: 1rem 0;
        }
        li {
            margin-bottom: 0.4rem;
        }
        :root {
            --primary: #1e3a5f;
            --primary-light: #2a5290;
            --accent: #f27a2a;
            --accent-light: #ff9f4a;
            --soft-bg: #f0f4fe;
            --card-bg: #ffffff;
            --text-dark: #1a2634;
            --text-soft: #3d4f64;
            --text-light: #6b7f94;
            --border-light: #e2e9f2;
            --shadow-sm: 0 2px 12px rgba(30, 58, 95, 0.06);
            --shadow-md: 0 8px 30px rgba(30, 58, 95, 0.10);
            --shadow-lg: 0 16px 48px rgba(30, 58, 95, 0.12);
            --radius: 16px;
            --radius-sm: 8px;
            --transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #0f253b 0%, #1e3a5f 60%, #2a5290 100%);
            padding: 0 0 6px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.15);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 20px;
            flex-wrap: wrap;
            gap: 12px;
        }
        .my-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.7rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
            text-decoration: none !important;
        }
        .my-logo i {
            color: var(--accent-light);
            font-size: 2rem;
            text-shadow: 0 2px 8px rgba(242, 122, 42, 0.3);
        }
        .my-logo span {
            background: linear-gradient(to right, #fff, #ffd9b5);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .my-logo:hover {
            text-decoration: none !important;
        }
        .nav-wrap {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        .nav-wrap a {
            color: #eaf0fa;
            font-size: 0.92rem;
            font-weight: 500;
            padding: 8px 16px;
            border-radius: 40px;
            transition: var(--transition);
            text-decoration: none;
            white-space: nowrap;
        }
        .nav-wrap a:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            text-decoration: none;
        }
        .nav-wrap a.active {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 14px rgba(242, 122, 42, 0.35);
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 6px 10px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.10);
        }
        .hamburger span {
            display: block;
            width: 26px;
            height: 3px;
            background: #fff;
            border-radius: 4px;
            transition: var(--transition);
        }
        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 6px);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -6px);
        }
        .breadcrumb-wrap {
            background: #fff;
            padding: 10px 0;
            border-bottom: 1px solid var(--border-light);
            font-size: 0.85rem;
        }
        .breadcrumb-wrap ol {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            padding: 0;
            margin: 0;
            gap: 6px;
        }
        .breadcrumb-wrap li {
            margin: 0;
        }
        .breadcrumb-wrap li+li::before {
            content: "›";
            margin: 0 8px;
            color: var(--text-light);
        }
        .breadcrumb-wrap a {
            color: var(--text-soft);
        }
        .breadcrumb-wrap a:hover {
            color: var(--accent);
        }
        .breadcrumb-wrap .current {
            color: var(--text-light);
            font-weight: 500;
        }
        .main-content {
            padding: 32px 0 48px;
        }
        .article-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 36px 32px 48px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            margin-bottom: 32px;
        }
        .article-card h1 {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.25;
            margin-bottom: 0.5rem;
            letter-spacing: -0.02em;
        }
        .article-card h1 i {
            color: var(--accent);
            margin-right: 12px;
        }
        .article-card .meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 28px;
            font-size: 0.92rem;
            color: var(--text-light);
            border-bottom: 1px solid var(--border-light);
            padding-bottom: 16px;
            margin-bottom: 24px;
        }
        .article-card .meta i {
            margin-right: 6px;
            color: var(--accent);
        }
        .article-card .last-updated {
            display: inline-block;
            background: #eaf7ee;
            color: #1f6e3e;
            padding: 4px 14px;
            border-radius: 40px;
            font-size: 0.82rem;
            font-weight: 600;
        }
        .article-card h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary);
            margin-top: 2.2rem;
            margin-bottom: 0.8rem;
            padding-bottom: 6px;
            border-bottom: 3px solid var(--accent-light);
            display: inline-block;
        }
        .article-card h3 {
            font-size: 1.35rem;
            font-weight: 600;
            color: var(--primary-light);
            margin-top: 1.8rem;
            margin-bottom: 0.5rem;
        }
        .article-card h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-soft);
            margin-top: 1.4rem;
            margin-bottom: 0.3rem;
        }
        .article-card p {
            margin-bottom: 1.2rem;
            color: var(--text-soft);
            font-size: 1.02rem;
        }
        .article-card strong {
            color: var(--text-dark);
            font-weight: 600;
        }
        .article-card .highlight-box {
            background: var(--soft-bg);
            border-left: 5px solid var(--accent);
            padding: 18px 24px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 1.6rem 0;
        }
        .article-card .highlight-box p:last-child {
            margin-bottom: 0;
        }
        .featured-img {
            margin: 1.8rem 0 2rem;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        .featured-img img {
            width: 100%;
            height: auto;
            display: block;
        }
        .featured-img figcaption {
            padding: 12px 18px;
            background: var(--soft-bg);
            font-size: 0.88rem;
            color: var(--text-light);
            text-align: center;
            font-style: italic;
        }
        .link-list-inline {
            display: flex;
            flex-wrap: wrap;
            gap: 10px 18px;
            padding: 0;
            margin: 1.2rem 0 1.8rem;
            list-style: none;
        }
        .link-list-inline li {
            margin: 0;
        }
        .link-list-inline a {
            background: var(--soft-bg);
            padding: 6px 18px;
            border-radius: 40px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--primary-light);
            border: 1px solid transparent;
            transition: var(--transition);
        }
        .link-list-inline a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            text-decoration: none;
        }
        .search-section {
            background: linear-gradient(135deg, #e8eefb, #dce5f5);
            border-radius: var(--radius);
            padding: 28px 32px;
            margin-bottom: 32px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }
        .search-section h3 {
            font-size: 1.3rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .search-section h3 i {
            color: var(--accent);
            margin-right: 10px;
        }
        .search-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .search-form input {
            flex: 1;
            min-width: 200px;
            padding: 14px 20px;
            border: 2px solid var(--border-light);
            border-radius: 60px;
            font-size: 1rem;
            background: #fff;
            transition: var(--transition);
            outline: none;
        }
        .search-form input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 4px rgba(242, 122, 42, 0.10);
        }
        .search-form button {
            padding: 14px 32px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 60px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .search-form button:hover {
            background: var(--primary-light);
            transform: scale(1.02);
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin-top: 32px;
        }
        .feedback-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 28px 28px 32px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }
        .feedback-card h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 18px;
        }
        .feedback-card h3 i {
            color: var(--accent);
            margin-right: 10px;
        }
        .feedback-card label {
            display: block;
            font-weight: 500;
            margin-top: 12px;
            margin-bottom: 4px;
            color: var(--text-soft);
            font-size: 0.92rem;
        }
        .feedback-card input,
        .feedback-card textarea,
        .feedback-card select {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid var(--border-light);
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            background: #fff;
            transition: var(--transition);
            outline: none;
            font-family: inherit;
        }
        .feedback-card input:focus,
        .feedback-card textarea:focus,
        .feedback-card select:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 4px rgba(242, 122, 42, 0.08);
        }
        .feedback-card textarea {
            min-height: 90px;
            resize: vertical;
        }
        .feedback-card .btn-submit {
            margin-top: 16px;
            padding: 12px 28px;
            background: var(--accent);
            color: #fff;
            border: none;
            border-radius: 60px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .feedback-card .btn-submit:hover {
            background: #d96a1e;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(242, 122, 42, 0.25);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 4px;
            margin: 8px 0 4px;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 1.8rem;
            color: #d0d8e2;
            cursor: pointer;
            transition: var(--transition);
            margin: 0;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f5b342;
        }
        .site-footer {
            background: var(--primary);
            color: #d6e2f0;
            padding: 40px 0 24px;
            margin-top: 40px;
        }
        .site-footer .container {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 32px;
        }
        .site-footer h4 {
            color: #fff;
            font-size: 1.1rem;
            margin-bottom: 14px;
            font-weight: 600;
        }
        .site-footer a {
            color: #b8cee8;
        }
        .site-footer a:hover {
            color: #fff;
            text-decoration: underline;
        }
        .site-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer .footer-links li {
            margin-bottom: 6px;
        }
        friend-link {
            display: block;
            background: rgba(255, 255, 255, 0.05);
            padding: 18px 20px;
            border-radius: var(--radius-sm);
            margin-top: 12px;
            border: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 0.92rem;
        }
        friend-link a {
            display: inline-block;
            margin-right: 16px;
            margin-bottom: 6px;
        }
        .copyright {
            grid-column: 1 / -1;
            text-align: center;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 16px;
            font-size: 0.88rem;
            color: #9ab0c9;
        }
        .copyright strong {
            color: #fff;
        }
        @media (max-width: 992px) {
            .feedback-grid {
                grid-template-columns: 1fr;
            }
            .site-footer .container {
                grid-template-columns: 1fr 1fr;
            }
            .article-card {
                padding: 24px 18px 32px;
            }
            .article-card h1 {
                font-size: 1.9rem;
            }
            .article-card h2 {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: flex;
            }
            .nav-wrap {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                background: rgba(15, 37, 59, 0.98);
                border-radius: var(--radius-sm);
                padding: 16px 12px;
                margin-top: 6px;
                gap: 4px;
            }
            .nav-wrap.open {
                display: flex;
            }
            .nav-wrap a {
                padding: 12px 18px;
                border-radius: 8px;
            }
            .header-inner {
                padding: 10px 16px;
            }
            .my-logo {
                font-size: 1.35rem;
            }
            .my-logo i {
                font-size: 1.5rem;
            }
            .article-card h1 {
                font-size: 1.6rem;
            }
            .article-card h2 {
                font-size: 1.3rem;
            }
            .article-card h3 {
                font-size: 1.15rem;
            }
            .article-card {
                padding: 18px 14px 28px;
            }
            .search-section {
                padding: 20px 18px;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form input {
                min-width: unset;
            }
            .site-footer .container {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .breadcrumb-wrap {
                font-size: 0.78rem;
                padding: 8px 0;
            }
            .feedback-card {
                padding: 20px 18px 24px;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 12px;
            }
            .article-card h1 {
                font-size: 1.4rem;
            }
            .article-card .meta {
                font-size: 0.82rem;
                gap: 8px 16px;
            }
            .link-list-inline a {
                font-size: 0.82rem;
                padding: 4px 14px;
            }
            .star-rating label {
                font-size: 1.5rem;
            }
        }
        .text-accent {
            color: var(--accent);
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mt-2 {
            margin-top: 2rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .flex-center {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .badge {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            padding: 2px 12px;
            border-radius: 40px;
            font-size: 0.78rem;
            font-weight: 600;
        }