* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, sans-serif;
            background: #f9fafc;
            color: #1e293b;
            line-height: 1.7;
            padding: 0 1rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            background: #ffffff;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
            border-radius: 28px;
            padding: 1.8rem 2.2rem;
            margin-top: 1.2rem;
            margin-bottom: 1.2rem;
        }
        header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding-bottom: 1rem;
            border-bottom: 2px solid #eef2f6;
            position: relative;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 700;
            background: linear-gradient(135deg, #0f3b5e, #1e6f9f);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }
        .my-logo i {
            -webkit-text-fill-color: initial;
            color: #f59e0b;
            font-size: 2rem;
        }
        .my-logo:hover {
            opacity: 0.85;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }
        nav {
            display: flex;
            gap: 1.2rem;
            flex-wrap: wrap;
        }
        nav a {
            text-decoration: none;
            color: #1e293b;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.4rem 0.8rem;
            border-radius: 40px;
            transition: background 0.2s, color 0.2s;
        }
        nav a:hover {
            background: #eef2f6;
            color: #0f3b5e;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: #1e293b;
            cursor: pointer;
            padding: 0.2rem 0.5rem;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: #eef2f6;
        }
        .breadcrumb {
            padding: 0.8rem 0 0.4rem 0;
            font-size: 0.85rem;
            color: #64748b;
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem 0.8rem;
            border-bottom: 1px solid #eef2f6;
            margin-bottom: 1.8rem;
        }
        .breadcrumb a {
            color: #1e6f9f;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb span.sep {
            color: #94a3b8;
        }
        h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            margin: 1.2rem 0 0.8rem 0;
            color: #0f3b5e;
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: 1.9rem;
            font-weight: 700;
            margin: 2.4rem 0 1rem 0;
            color: #0f3b5e;
            border-left: 6px solid #f59e0b;
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.4rem;
            font-weight: 600;
            margin: 1.8rem 0 0.8rem 0;
            color: #1e6f9f;
        }
        h4 {
            font-size: 1.15rem;
            font-weight: 600;
            margin: 1.2rem 0 0.4rem 0;
            color: #334155;
        }
        p {
            margin-bottom: 1.2rem;
            font-size: 1.05rem;
            color: #334155;
        }
        .lead {
            font-size: 1.2rem;
            color: #1e293b;
            font-weight: 400;
            background: #f1f5f9;
            padding: 1.2rem 1.6rem;
            border-radius: 16px;
            border-left: 4px solid #f59e0b;
        }
        strong {
            color: #0f3b5e;
            font-weight: 700;
        }
        .highlight {
            background: #fef9e7;
            padding: 0.1rem 0.4rem;
            border-radius: 6px;
        }
        .featured-image {
            margin: 1.8rem 0;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
        }
        .featured-image img {
            width: 100%;
            height: auto;
            display: block;
            border-radius: 20px;
        }
        .featured-image figcaption {
            background: #f8fafc;
            padding: 0.8rem 1.2rem;
            font-size: 0.9rem;
            color: #64748b;
            text-align: center;
            border-bottom-left-radius: 20px;
            border-bottom-right-radius: 20px;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.6rem 0;
            border-radius: 16px;
            border: 1px solid #e2e8f0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
            min-width: 600px;
        }
        th {
            background: #0f3b5e;
            color: #fff;
            padding: 0.9rem 1.2rem;
            text-align: left;
            font-weight: 600;
        }
        td {
            padding: 0.8rem 1.2rem;
            border-bottom: 1px solid #e2e8f0;
        }
        tr:last-child td {
            border-bottom: none;
        }
        tr:hover td {
            background: #f8fafc;
        }
        .link-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 1rem;
            margin: 1.6rem 0;
            padding: 0;
            list-style: none;
        }
        .link-list li a {
            display: block;
            padding: 0.9rem 1.2rem;
            background: #f8fafc;
            border-radius: 14px;
            text-decoration: none;
            color: #1e6f9f;
            font-weight: 500;
            border: 1px solid #e2e8f0;
            transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
        }
        .link-list li a:hover {
            background: #eef2f6;
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(0, 0, 0, 0.05);
        }
        .link-list li a i {
            margin-right: 0.6rem;
            color: #f59e0b;
        }
        .form-card {
            background: #f8fafc;
            border-radius: 20px;
            padding: 1.8rem 2rem;
            margin: 2rem 0;
            border: 1px solid #e2e8f0;
        }
        .form-card h3 {
            margin-top: 0;
        }
        .form-group {
            margin-bottom: 1.2rem;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 0.4rem;
            color: #1e293b;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 1px solid #cbd5e1;
            border-radius: 12px;
            font-size: 1rem;
            font-family: inherit;
            transition: border 0.2s, box-shadow 0.2s;
            background: #fff;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            outline: none;
            border-color: #1e6f9f;
            box-shadow: 0 0 0 3px rgba(30, 111, 159, 0.15);
        }
        .form-group textarea {
            min-height: 100px;
            resize: vertical;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.8rem 2rem;
            background: #0f3b5e;
            color: #fff;
            border: none;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
        }
        .btn:hover {
            background: #1e6f9f;
            transform: scale(1.02);
        }
        .btn-secondary {
            background: #f59e0b;
            color: #0f3b5e;
        }
        .btn-secondary:hover {
            background: #d97706;
            color: #fff;
        }
        .star-rating {
            display: flex;
            gap: 0.4rem;
            font-size: 1.8rem;
            color: #d1d5db;
            cursor: pointer;
            direction: rtl;
        }
        .star-rating i {
            transition: color 0.15s, transform 0.15s;
        }
        .star-rating i:hover,
        .star-rating i:hover~i {
            color: #f59e0b;
            transform: scale(1.1);
        }
        .star-rating input {
            display: none;
        }
        .star-rating input:checked~i {
            color: #f59e0b;
        }
        friend-link {
            display: block;
            padding: 1.6rem 0 0.8rem 0;
            border-top: 2px solid #eef2f6;
            margin-top: 2rem;
        }
        friend-link h3 {
            font-size: 1.2rem;
            margin-bottom: 0.8rem;
            color: #0f3b5e;
        }
        friend-link ul {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem 1.6rem;
            padding: 0;
        }
        friend-link ul li a {
            text-decoration: none;
            color: #1e6f9f;
            font-weight: 500;
            padding: 0.3rem 0.6rem;
            border-radius: 8px;
            transition: background 0.2s;
        }
        friend-link ul li a:hover {
            background: #eef2f6;
        }
        footer {
            text-align: center;
            padding: 1.6rem 0 0.4rem 0;
            color: #64748b;
            font-size: 0.9rem;
            border-top: 1px solid #eef2f6;
            margin-top: 1.2rem;
        }
        footer p {
            margin-bottom: 0.4rem;
            color: #64748b;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .container {
                padding: 1rem 1.2rem;
                border-radius: 18px;
                margin-top: 0.6rem;
                margin-bottom: 0.6rem;
            }
            h1 {
                font-size: 1.9rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            .my-logo {
                font-size: 1.5rem;
            }
            .nav-wrapper nav {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #fff;
                padding: 1rem 0;
                gap: 0.4rem;
                border-top: 1px solid #eef2f6;
                margin-top: 0.6rem;
            }
            .nav-wrapper nav.open {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            .breadcrumb {
                font-size: 0.75rem;
            }
            .form-card {
                padding: 1.2rem 1rem;
            }
            .link-list {
                grid-template-columns: 1fr;
            }
            .star-rating {
                font-size: 1.5rem;
            }
        }
        @media (min-width: 769px) {
            .hamburger {
                display: none !important;
            }
            nav {
                display: flex !important;
            }
        }
        .section-spacer {
            margin: 2.4rem 0;
        }
        .tag {
            display: inline-block;
            background: #eef2f6;
            padding: 0.2rem 1rem;
            border-radius: 40px;
            font-size: 0.8rem;
            font-weight: 600;
            color: #0f3b5e;
            margin-right: 0.4rem;
        }
        .update-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: #e6f7ec;
            color: #0b6e3a;
            padding: 0.3rem 1rem;
            border-radius: 40px;
            font-size: 0.85rem;
            font-weight: 600;
        }
        .faq-item {
            padding: 1rem 0;
            border-bottom: 1px solid #eef2f6;
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-item strong {
            display: block;
            font-size: 1.05rem;
            margin-bottom: 0.3rem;
        }