*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;
            background: #f8fafc;
            color: #1e293b;
            line-height: 1.7;
            padding: 0;
            margin: 0;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: #0f3b5e;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover,
        a:focus-visible {
            color: #d97706;
            text-decoration: underline;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            color: #0c1f2f;
            font-weight: 700;
            margin-top: 0;
        }
        h1 {
            font-size: 2.4rem;
            margin-bottom: 1rem;
        }
        h2 {
            font-size: 1.8rem;
            margin-bottom: 0.9rem;
            border-bottom: 3px solid #e2e8f0;
            padding-bottom: 0.4rem;
        }
        h3 {
            font-size: 1.35rem;
            margin-bottom: 0.7rem;
        }
        h4 {
            font-size: 1.1rem;
            margin-bottom: 0.5rem;
            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, #0f3b5e 0%, #1a5276 100%);
            color: #fff;
            padding: 0.7rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            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: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: #fff;
            text-transform: uppercase;
            background: linear-gradient(135deg, #fbbf24, #f59e0b);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: none;
            transition: transform 0.2s ease;
        }
        .my-logo:hover {
            transform: scale(1.03);
            text-decoration: none;
        }
        .my-logo i {
            -webkit-text-fill-color: #fbbf24;
            margin-right: 0.3rem;
        }
        .nav-toggle {
            display: none;
            background: transparent;
            border: 2px solid rgba(255, 255, 255, 0.6);
            color: #fff;
            font-size: 1.6rem;
            padding: 0.3rem 0.8rem;
            border-radius: 8px;
            cursor: pointer;
            transition: all 0.25s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
        }
        .main-nav {
            display: flex;
            gap: 1.2rem;
            align-items: center;
            flex-wrap: wrap;
        }
        .main-nav a {
            color: #e2e8f0;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.3rem 0.6rem;
            border-radius: 6px;
            transition: background 0.2s, color 0.2s;
        }
        .main-nav a:hover,
        .main-nav a:focus-visible {
            background: rgba(255, 255, 255, 0.12);
            color: #fbbf24;
            text-decoration: none;
        }
        .main-nav a i {
            margin-right: 0.35rem;
        }
        .breadcrumb-wrap {
            background: #e9edf2;
            padding: 0.5rem 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #d1d9e3;
        }
        .breadcrumb-wrap ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 0.6rem;
            padding: 0;
            margin: 0;
        }
        .breadcrumb-wrap li+li::before {
            content: "›";
            margin-right: 0.5rem;
            color: #64748b;
            font-weight: 600;
        }
        .breadcrumb-wrap a {
            color: #0f3b5e;
        }
        .breadcrumb-wrap .current {
            color: #475569;
            font-weight: 600;
        }
        .hero-section {
            background: linear-gradient(145deg, #0f3b5e, #1e3a5f);
            color: #fff;
            padding: 2.5rem 0 2rem;
            margin-bottom: 2rem;
            border-radius: 0 0 40px 40px;
        }
        .hero-section h1 {
            color: #fff;
            font-size: 2.6rem;
            letter-spacing: -0.3px;
        }
        .hero-section h1 i {
            color: #fbbf24;
            margin-right: 0.5rem;
        }
        .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 1.2rem 2rem;
            margin-top: 0.8rem;
            font-size: 0.95rem;
            color: #cbd5e1;
        }
        .hero-meta span i {
            margin-right: 0.4rem;
            color: #fbbf24;
        }
        .hero-section .container p {
            font-size: 1.1rem;
            max-width: 800px;
            color: #e2e8f0;
            margin-top: 0.8rem;
        }
        .search-bar {
            background: #fff;
            border-radius: 60px;
            padding: 0.3rem 0.3rem 0.3rem 1.5rem;
            display: flex;
            align-items: center;
            max-width: 520px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
            margin-top: 1.2rem;
            border: 1px solid #d1d9e3;
        }
        .search-bar input {
            flex: 1;
            border: none;
            outline: none;
            font-size: 1rem;
            padding: 0.7rem 0;
            background: transparent;
            color: #1e293b;
            min-width: 0;
        }
        .search-bar input::placeholder {
            color: #94a3b8;
        }
        .search-bar button {
            background: #f59e0b;
            border: none;
            color: #fff;
            font-weight: 600;
            padding: 0.7rem 1.8rem;
            border-radius: 60px;
            cursor: pointer;
            font-size: 0.95rem;
            transition: background 0.25s, transform 0.15s;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .search-bar button:hover {
            background: #d97706;
            transform: scale(1.02);
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            margin: 2rem 0 3rem;
        }
        .main-content {
            min-width: 0;
        }
        .sidebar {
            position: sticky;
            top: 100px;
            align-self: start;
            background: #fff;
            border-radius: 24px;
            padding: 1.6rem 1.4rem;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
            border: 1px solid #e9edf2;
        }
        .sidebar h3 {
            font-size: 1.1rem;
            border-bottom: 2px solid #e2e8f0;
            padding-bottom: 0.6rem;
            margin-bottom: 1rem;
        }
        .sidebar ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .sidebar li {
            margin-bottom: 0.7rem;
        }
        .sidebar li a {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.9rem;
            padding: 0.35rem 0;
            border-bottom: 1px solid #f1f5f9;
        }
        .sidebar li a i {
            color: #f59e0b;
            font-size: 0.75rem;
        }
        .section-card {
            background: #fff;
            border-radius: 24px;
            padding: 1.8rem 2rem;
            margin-bottom: 2rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
            border: 1px solid #e9edf2;
            transition: box-shadow 0.3s;
        }
        .section-card:hover {
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
        }
        .feature-box {
            background: #f1f6fa;
            border-left: 5px solid #f59e0b;
            padding: 1.2rem 1.5rem;
            border-radius: 12px;
            margin: 1.2rem 0;
        }
        .feature-box i {
            color: #f59e0b;
            margin-right: 0.5rem;
        }
        .tip-list {
            list-style: none;
            padding: 0;
        }
        .tip-list li {
            padding: 0.6rem 0;
            border-bottom: 1px solid #f1f5f9;
            display: flex;
            gap: 0.7rem;
            align-items: flex-start;
        }
        .tip-list li i {
            color: #f59e0b;
            margin-top: 0.2rem;
            min-width: 1.2rem;
        }
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
            gap: 1rem;
            margin: 1.2rem 0;
        }
        .stat-item {
            background: #f8fafc;
            border-radius: 16px;
            padding: 1rem;
            text-align: center;
            border: 1px solid #e9edf2;
        }
        .stat-item .num {
            font-size: 1.8rem;
            font-weight: 800;
            color: #0f3b5e;
        }
        .stat-item .label {
            font-size: 0.85rem;
            color: #64748b;
        }
        .content-img {
            border-radius: 18px;
            margin: 1.8rem 0;
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.08);
            background: #e2e8f0;
            overflow: hidden;
        }
        .content-img img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }
        .content-img figcaption {
            padding: 0.6rem 1rem;
            font-size: 0.85rem;
            color: #475569;
            background: #f8fafc;
            border-top: 1px solid #e9edf2;
        }
        .rating-block {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.8rem 1.5rem;
            background: #f1f6fa;
            border-radius: 16px;
            padding: 1rem 1.5rem;
            margin: 1.2rem 0;
        }
        .rating-stars {
            display: flex;
            gap: 0.2rem;
            font-size: 1.6rem;
            color: #d1d5db;
            cursor: pointer;
        }
        .rating-stars .star.active {
            color: #f59e0b;
        }
        .rating-stars .star:hover,
        .rating-stars .star.hover {
            color: #fbbf24;
        }
        .rating-form button {
            background: #0f3b5e;
            color: #fff;
            border: none;
            padding: 0.5rem 1.6rem;
            border-radius: 60px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s;
        }
        .rating-form button:hover {
            background: #1a5276;
        }
        .comment-box {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
            margin: 1.2rem 0;
        }
        .comment-box textarea {
            border: 2px solid #e2e8f0;
            border-radius: 16px;
            padding: 0.9rem 1.2rem;
            font-size: 1rem;
            font-family: inherit;
            resize: vertical;
            min-height: 90px;
            transition: border 0.25s;
        }
        .comment-box textarea:focus {
            border-color: #f59e0b;
            outline: none;
        }
        .comment-box input[type="text"] {
            border: 2px solid #e2e8f0;
            border-radius: 16px;
            padding: 0.7rem 1.2rem;
            font-size: 1rem;
            font-family: inherit;
            transition: border 0.25s;
        }
        .comment-box input[type="text"]:focus {
            border-color: #f59e0b;
            outline: none;
        }
        .comment-box .btn-submit {
            background: #0f3b5e;
            color: #fff;
            border: none;
            padding: 0.7rem 2rem;
            border-radius: 60px;
            font-weight: 600;
            cursor: pointer;
            align-self: flex-start;
            transition: background 0.25s;
        }
        .comment-box .btn-submit:hover {
            background: #1a5276;
        }
        .site-footer {
            background: #0c1f2f;
            color: #cbd5e1;
            padding: 2.5rem 0 1.5rem;
            margin-top: 3rem;
            border-radius: 40px 40px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .site-footer h4 {
            color: #fbbf24;
            margin-bottom: 0.8rem;
        }
        .site-footer a {
            color: #94a3b8;
        }
        .site-footer a:hover {
            color: #fbbf24;
        }
        .friend-link {
            display: block;
            padding: 0.8rem 0;
            border-top: 1px solid #1e3a5f;
            margin-top: 1.2rem;
        }
        .friend-link ul {
            list-style: none;
            padding: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem 1.4rem;
        }
        .friend-link ul li a {
            font-size: 0.9rem;
        }
        .copyright {
            text-align: center;
            padding-top: 1.2rem;
            border-top: 1px solid #1e3a5f;
            font-size: 0.85rem;
            color: #64748b;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                order: 2;
            }
            .hero-section h1 {
                font-size: 2rem;
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 0.5rem;
                padding: 1rem 0 0.5rem;
                border-top: 1px solid rgba(255, 255, 255, 0.1);
                margin-top: 0.8rem;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 0.5rem 0.8rem;
                width: 100%;
                border-radius: 8px;
            }
            .main-nav a:hover {
                background: rgba(255, 255, 255, 0.08);
            }
            .header-inner {
                align-items: center;
            }
            .hero-section h1 {
                font-size: 1.7rem;
            }
            .section-card {
                padding: 1.2rem 1rem;
            }
            .search-bar {
                flex-wrap: wrap;
                border-radius: 30px;
                padding: 0.3rem;
            }
            .search-bar input {
                padding: 0.5rem 0.8rem;
                width: 100%;
            }
            .search-bar button {
                width: 100%;
                justify-content: center;
                border-radius: 30px;
                padding: 0.6rem;
            }
            .stat-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .rating-block {
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .breadcrumb-wrap ol {
                font-size: 0.8rem;
            }
        }
        @media (max-width: 480px) {
            html {
                font-size: 15px;
            }
            .hero-section {
                padding: 1.5rem 0;
            }
            .hero-section h1 {
                font-size: 1.4rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1.15rem;
            }
            .container {
                padding: 0 0.9rem;
            }
        }
        :focus-visible {
            outline: 3px solid #f59e0b;
            outline-offset: 2px;
        }
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                transition-duration: 0.01ms !important;
            }
        }