* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
            background: #fafbfc;
            color: #1a2634;
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: #005c97;
            text-decoration: none;
            transition: color 0.25s ease, border-color 0.25s ease;
        }
        a:hover {
            color: #0a3d62;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        header {
            background: linear-gradient(135deg, #0a1a2b 0%, #132d46 100%);
            color: #fff;
            padding: 18px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.25);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px 20px;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: opacity 0.3s;
        }
        .my-logo:hover {
            opacity: 0.88;
            text-decoration: none;
            color: #fff;
        }
        .my-logo i {
            font-size: 1.8rem;
            color: #f5c842;
        }
        .my-logo span {
            background: linear-gradient(to right, #f5c842, #f7d97a);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.12);
        }
        nav#main-nav ul {
            list-style: none;
            display: flex;
            gap: 8px 18px;
            flex-wrap: wrap;
            align-items: center;
        }
        nav#main-nav ul li a {
            color: #e0edf5;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 6px 10px;
            border-radius: 6px;
            transition: background 0.25s, color 0.25s;
            white-space: nowrap;
        }
        nav#main-nav ul li a:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #f5c842;
            text-decoration: none;
        }
        nav#main-nav ul li a i {
            margin-right: 6px;
            font-size: 0.85rem;
        }
        .breadcrumbs {
            background: #f0f3f6;
            padding: 10px 0;
            font-size: 0.88rem;
            border-bottom: 1px solid #dce3ea;
        }
        .breadcrumbs ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
            padding: 0;
        }
        .breadcrumbs ol li+li::before {
            content: "›";
            margin-right: 12px;
            color: #7a8a9e;
        }
        .breadcrumbs ol li a {
            color: #005c97;
        }
        .breadcrumbs ol li [aria-current="page"] {
            color: #2c3e50;
            font-weight: 600;
        }
        .hero-figure {
            margin: 32px 0 28px;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 8px 40px rgba(0, 0, 0, 0.08);
            background: #eef2f5;
        }
        .hero-figure img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }
        .hero-figure figcaption {
            padding: 12px 20px;
            font-size: 0.9rem;
            color: #4a5a6e;
            background: #f7f9fb;
            border-top: 1px solid #e0e6ed;
        }
        h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            margin: 40px 0 16px;
            color: #0a1a2b;
            letter-spacing: -0.5px;
        }
        h2 {
            font-size: 2rem;
            font-weight: 700;
            margin: 48px 0 16px;
            padding-bottom: 8px;
            border-bottom: 3px solid #e8edf2;
            color: #0f2a3f;
        }
        h3 {
            font-size: 1.45rem;
            font-weight: 600;
            margin: 32px 0 12px;
            color: #1a3a52;
        }
        h4 {
            font-size: 1.15rem;
            font-weight: 600;
            margin: 24px 0 8px;
            color: #2c4a64;
        }
        p {
            margin-bottom: 18px;
            font-size: 1.05rem;
            color: #1f2d3a;
        }
        .lead {
            font-size: 1.25rem;
            font-weight: 400;
            color: #2c3e50;
            line-height: 1.8;
            border-left: 4px solid #f5c842;
            padding-left: 24px;
            margin: 24px 0 32px;
            background: #f8fafc;
            padding: 20px 24px;
            border-radius: 0 12px 12px 0;
        }
        .highlight {
            background: #fef9e7;
            padding: 2px 8px;
            border-radius: 4px;
            font-weight: 600;
        }
        .emoji-big {
            font-size: 1.6rem;
            margin-right: 6px;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 12px;
        }
        .info-card {
            background: #fff;
            border-radius: 16px;
            padding: 28px 32px;
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.04);
            border: 1px solid #eaeef3;
            transition: box-shadow 0.3s, transform 0.2s;
        }
        .info-card:hover {
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.07);
            transform: translateY(-2px);
        }
        .stats-row {
            display: flex;
            flex-wrap: wrap;
            gap: 24px 40px;
            background: #f0f6fb;
            padding: 24px 28px;
            border-radius: 16px;
            margin: 28px 0;
        }
        .stat-item {
            flex: 1 1 140px;
        }
        .stat-item .num {
            font-size: 2.2rem;
            font-weight: 800;
            color: #0a3d62;
            display: block;
            line-height: 1.1;
        }
        .stat-item .label {
            font-size: 0.9rem;
            color: #4a6a7e;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .link-inline {
            font-weight: 600;
            color: #005c97;
            border-bottom: 1px dotted #b0c8da;
            transition: border-color 0.2s;
        }
        .link-inline:hover {
            border-bottom: 1px solid #005c97;
            text-decoration: none;
        }
        .form-section {
            background: #fff;
            border-radius: 20px;
            padding: 32px 36px;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.05);
            border: 1px solid #e2e9f0;
            margin: 40px 0;
        }
        .form-section h3 {
            margin-top: 0;
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 6px;
            color: #1f3a4e;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px 16px;
            border: 1.5px solid #d0dae4;
            border-radius: 10px;
            font-size: 1rem;
            font-family: inherit;
            transition: border-color 0.25s, box-shadow 0.25s;
            background: #fafcfd;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: #005c97;
            box-shadow: 0 0 0 3px rgba(0, 92, 151, 0.15);
            outline: none;
        }
        .form-group textarea {
            min-height: 110px;
            resize: vertical;
        }
        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px 24px;
        }
        .btn {
            background: #0a3d62;
            color: #fff;
            border: none;
            padding: 14px 32px;
            border-radius: 10px;
            font-size: 1.05rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .btn:hover {
            background: #0f4a73;
            transform: translateY(-1px);
        }
        .btn i {
            font-size: 1.1rem;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 4px;
            font-size: 1.8rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            color: #d0dae4;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f5b342;
        }
        .comment-list {
            margin: 28px 0 12px;
        }
        .comment-item {
            padding: 18px 22px;
            border-left: 3px solid #e0e9f0;
            margin-bottom: 16px;
            background: #f8fafc;
            border-radius: 0 12px 12px 0;
        }
        .comment-item strong {
            color: #0a2a3f;
        }
        .comment-item .date {
            font-size: 0.82rem;
            color: #6a8a9e;
        }
        footer {
            background: #0a1a2b;
            color: #c8d6e0;
            padding: 48px 0 28px;
            margin-top: 56px;
        }
        footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 32px 48px;
        }
        footer h4 {
            color: #f0f5fa;
            margin-bottom: 16px;
            font-size: 1.1rem;
            border-bottom: 1px solid #1f3a4e;
            padding-bottom: 8px;
        }
        footer a {
            color: #9ab8d0;
        }
        footer a:hover {
            color: #f5c842;
        }
        footer ul {
            list-style: none;
            padding: 0;
        }
        footer ul li {
            margin-bottom: 8px;
        }
        footer .copyright {
            margin-top: 40px;
            padding-top: 20px;
            border-top: 1px solid #1f3a4e;
            text-align: center;
            font-size: 0.9rem;
            color: #7a96aa;
        }
        friend-link {
            display: block;
            margin-top: 12px;
            font-style: normal;
        }
        friend-link a {
            display: inline-block;
            margin-right: 20px;
            margin-bottom: 6px;
        }
        @media (max-width: 1024px) {
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            footer .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            nav#main-nav {
                display: none;
                width: 100%;
                order: 3;
                margin-top: 10px;
            }
            nav#main-nav.open {
                display: block;
            }
            nav#main-nav ul {
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
            }
            nav#main-nav ul li a {
                display: block;
                padding: 12px 16px;
                background: rgba(255, 255, 255, 0.04);
                border-radius: 8px;
            }
            .header-inner {
                align-items: center;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.45rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            .container {
                padding: 0 16px;
            }
            .form-row {
                grid-template-columns: 1fr;
            }
            .form-section {
                padding: 22px 18px;
            }
            .info-card {
                padding: 20px 18px;
            }
            .stats-row {
                padding: 18px 16px;
                gap: 16px;
            }
            .stat-item .num {
                font-size: 1.6rem;
            }
            footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .breadcrumbs ol {
                font-size: 0.8rem;
                gap: 4px 8px;
            }
            .lead {
                font-size: 1.05rem;
                padding: 16px 18px;
            }
            .hero-figure {
                margin: 16px 0 20px;
                border-radius: 12px;
            }
            .hero-figure figcaption {
                font-size: 0.8rem;
                padding: 10px 14px;
            }
        }
        @media (max-width: 480px) {
            h1 {
                font-size: 1.5rem;
            }
            .my-logo {
                font-size: 1.2rem;
            }
            .my-logo i {
                font-size: 1.3rem;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
            .star-rating {
                font-size: 1.5rem;
            }
        }
        .mt-1 {
            margin-top: 12px;
        }
        .mb-1 {
            margin-bottom: 12px;
        }
        .flex-between {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
        }
        .badge {
            background: #e8edf2;
            padding: 2px 12px;
            border-radius: 20px;
            font-size: 0.82rem;
            color: #2a4a62;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 24px 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
        }
        table th,
        table td {
            padding: 12px 16px;
            border-bottom: 1px solid #dce3ea;
            text-align: left;
        }
        table th {
            background: #f0f5fa;
            font-weight: 600;
            color: #0a2a3f;
        }
        table tr:hover td {
            background: #f8fafc;
        }
        .toc {
            background: #f4f8fb;
            border-radius: 16px;
            padding: 24px 28px;
            margin: 32px 0;
            border: 1px solid #dce6ee;
        }
        .toc ol {
            padding-left: 24px;
            columns: 2;
            column-gap: 40px;
        }
        .toc ol li {
            margin-bottom: 6px;
            break-inside: avoid;
        }
        .toc ol li a {
            font-weight: 500;
        }
        @media (max-width: 640px) {
            .toc ol {
                columns: 1;
            }
        }