* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            background: #f6f8fa;
            color: #1e2a3a;
            line-height: 1.6;
            font-size: 17px;
        }
        .container {
            max-width: 1300px;
            margin: 0 auto;
            padding: 0 20px;
        }
        a {
            text-decoration: none;
            color: #0b5ba1;
            transition: all 0.2s;
        }
        a:hover {
            color: #c9520f;
        }
        .top-header {
            background: #092e44;
            color: #fff;
            padding: 12px 0;
            border-bottom: 3px solid #f54b1b;
        }
        .header-flex {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
        }
        .my-logo {
            font-size: 2.1rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #ffb347, #f54b1b);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            filter: drop-shadow(0 2px 4px rgba(0,0,0,0.3));
            line-height: 1.2;
        }
        .my-logo i {
            background: none;
            -webkit-text-fill-color: initial;
            color: #ffd966;
            margin-right: 10px;
        }
        .tagline {
            font-size: 0.9rem;
            opacity: 0.85;
            letter-spacing: 2px;
        }
        .search-header {
            display: flex;
            gap: 6px;
            background: rgba(255,255,255,0.15);
            padding: 5px 12px;
            border-radius: 32px;
            align-items: center;
        }
        .search-header input {
            background: transparent;
            border: none;
            padding: 8px 6px;
            color: white;
            outline: none;
            font-size: 0.95rem;
            width: 180px;
        }
        .search-header input::placeholder {
            color: #ddd;
        }
        .search-header button {
            background: #f54b1b;
            border: none;
            border-radius: 24px;
            color: white;
            padding: 6px 14px;
            cursor: pointer;
            font-weight: 600;
        }
        .navbar {
            background: #123f5a;
        }
        .nav-container {
            display: flex;
            align-items: center;
            position: relative;
        }
        #nav-toggle {
            display: none;
        }
        .nav-menu {
            display: flex;
            list-style: none;
            gap: 0;
            flex-wrap: wrap;
        }
        .nav-menu li a {
            display: block;
            padding: 14px 20px;
            color: #eef6fb;
            font-weight: 600;
            border-bottom: 3px solid transparent;
        }
        .nav-menu li a:hover, .nav-menu li a.active {
            border-bottom-color: #ffb347;
            color: #ffb347;
        }
        .hamburger-label {
            display: none;
            font-size: 26px;
            color: #fff;
            cursor: pointer;
            padding: 10px 18px;
            margin-left: auto;
        }
        @media (max-width: 900px) {
            .nav-menu {
                display: none;
                width: 100%;
                flex-direction: column;
                background: #0f344b;
                padding-bottom: 12px;
            }
            .nav-menu li a {
                padding: 14px 28px;
            }
            .hamburger-label {
                display: block;
                margin-left: auto;
            }
            #nav-toggle:checked ~ .nav-menu {
                display: flex;
            }
            .header-flex {
                flex-direction: column;
                align-items: flex-start;
            }
            .search-header {
                width: 100%;
                margin-top: 10px;
            }
            .search-header input {
                flex: 1;
                width: auto;
            }
        }
        .breadcrumb {
            font-size: 0.9rem;
            padding: 14px 0;
            color: #4f5f6f;
        }
        .breadcrumb i {
            margin: 0 6px;
            font-size: 0.7rem;
        }
        .hero {
            background: linear-gradient(145deg, #eaf2f8, #d7e3ed);
            padding: 20px 0 25px;
            border-radius: 0 0 28px 28px;
            margin-bottom: 25px;
        }
        .hero-content {
            display: flex;
            flex-wrap: wrap;
            gap: 35px;
            justify-content: space-between;
            align-items: center;
        }
        .hero-text {
            flex: 2 1 400px;
        }
        .hero-text h1 {
            font-size: 2.5rem;
            color: #0a3142;
            line-height: 1.2;
            margin: 12px 0 15px;
            border-left: 8px solid #f54b1b;
            padding-left: 18px;
        }
        .hero-text p {
            font-size: 1.15rem;
            color: #224c61;
            max-width: 600px;
            font-weight: 400;
        }
        .hero-signal {
            flex: 1 1 240px;
            background: #103d51;
            border-radius: 20px;
            padding: 20px;
            color: white;
            box-shadow: 0 8px 30px rgba(0,0,0,0.15);
        }
        .hero-signal .score-badge {
            display: flex;
            justify-content: space-between;
            font-weight: 700;
            font-size: 1.2rem;
            border-bottom: 1px solid #3e6a7e;
            padding-bottom: 10px;
        }
        .layout {
            display: grid;
            grid-template-columns: 2.5fr 1.2fr;
            gap: 40px;
            padding-bottom: 50px;
        }
        @media (max-width: 1000px) {
            .layout {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }
        .article-body h2 {
            font-size: 2rem;
            color: #0f3a4f;
            margin: 38px 0 15px;
            border-bottom: 2px solid #dce6ed;
            padding-bottom: 8px;
        }
        .article-body h3 {
            font-size: 1.5rem;
            color: #13495f;
            margin-top: 28px;
            margin-bottom: 10px;
        }
        .article-body h4 {
            font-size: 1.2rem;
            color: #1d5a72;
            margin-top: 22px;
        }
        .article-body p {
            margin-bottom: 1.2rem;
        }
        .full-img {
            width: 100%;
            height: auto;
            border-radius: 16px;
            margin: 20px 0;
            box-shadow: 0 6px 16px rgba(0,0,0,0.08);
        }
        table {
            width: 100%;
            border-collapse: collapse;
            margin: 25px 0 30px;
            background: white;
            border-radius: 16px;
            overflow: hidden;
        }
        th {
            background: #0b3d52;
            color: white;
            padding: 12px 8px;
            text-align: left;
        }
        td {
            border-bottom: 1px solid #e5edf2;
            padding: 12px 8px;
        }
        .highlight-box {
            background: #fdf6e7;
            border-left: 6px solid #f0b93b;
            padding: 18px 20px;
            border-radius: 12px;
            margin: 25px 0;
        }
        .stat-emoji {
            font-size: 1.3rem;
            margin-right: 5px;
        }
        ul, ol {
            margin-left: 1.4rem;
            margin-bottom: 1.2rem;
        }
        li {
            margin: 6px 0;
        }
        .chip {
            background: #e5edf5;
            padding: 5px 12px;
            border-radius: 30px;
            display: inline-block;
            margin: 6px 4px 6px 0;
            font-weight: 600;
            color: #0b4b67;
        }
        .sidebar {
            background: #ffffffd6;
            border-radius: 24px;
            padding: 20px 18px;
            box-shadow: 0 0 22px rgba(0, 0, 0, 0.04);
            height: fit-content;
        }
        .sidebar-card {
            background: #f2f6fa;
            border-radius: 15px;
            margin-bottom: 22px;
            padding: 16px;
        }
        .sidebar-card .list-links a {
            display: block;
            padding: 7px 0;
            border-bottom: 1px dashed #b9cad6;
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin: 35px 0;
        }
        @media (max-width: 700px) {
            .feedback-grid {
                grid-template-columns: 1fr;
            }
        }
        .form-card {
            background: white;
            border-radius: 18px;
            padding: 22px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
            border: 1px solid #e3ecf3;
        }
        .form-card input, .form-card textarea {
            width: 100%;
            padding: 10px 12px;
            border: 1px solid #cccccc;
            border-radius: 10px;
            margin-bottom: 12px;
            font-family: inherit;
        }
        .btn-submit {
            background: #f54b1b;
            border: none;
            color: white;
            padding: 10px 24px;
            border-radius: 30px;
            cursor: pointer;
            font-weight: 600;
        }
        .rate-stars i {
            color: #f5b342;
            font-size: 1.6rem;
            margin-right: 4px;
            cursor: pointer;
        }
        .footer {
            background: #0a2b3b;
            color: #c3d3dd;
            padding: 40px 0 20px;
            margin-top: 60px;
        }
        .footer a {
            color: #ffd966;
        }
        .footer-copy {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 15px;
            border-top: 1px solid #286478;
            padding-top: 20px;
            margin-top: 25px;
            font-size: 0.9rem;
        }
        friend-link {
            display: block;
            background: #1b4355;
            border-radius: 18px;
            padding: 24px;
            font-size: 1rem;
            margin: 15px 0 25px;
        }
        friend-link a {
            display: inline-block;
            margin: 8px 15px 8px 0;
            color: #f8e7a0;
        }
        @media (max-width: 600px) {
            .hero-text h1 {
                font-size: 1.9rem;
            }
            .layout {
                padding-bottom: 20px;
            }
        }