* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            background: #f9fafc;
            color: #1e293b;
            line-height: 1.7;
            font-size: 16px;
            padding: 0 16px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            background: #ffffff;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.05);
            border-radius: 20px;
            padding: 20px 24px 40px;
            margin-top: 16px;
            margin-bottom: 40px;
        }
        header {
            padding: 16px 0 8px;
            border-bottom: 2px solid #eef2f6;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
        }
        .my-logo {
            font-size: 28px;
            font-weight: 800;
            text-decoration: none;
            color: #0f2b4a;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #1a3a5c, #2d6a9f);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: inline-block;
        }
        .my-logo small {
            font-size: 14px;
            font-weight: 400;
            color: #64748b;
            -webkit-text-fill-color: #64748b;
            display: block;
            font-style: italic;
            letter-spacing: 0.3px;
        }
        .hamburger {
            display: none;
            font-size: 28px;
            cursor: pointer;
            color: #1e293b;
            background: none;
            border: none;
            padding: 4px 8px;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: #eef2f6;
        }
        nav {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 16px;
            align-items: center;
        }
        nav a {
            text-decoration: none;
            color: #1e293b;
            font-weight: 500;
            font-size: 15px;
            padding: 6px 12px;
            border-radius: 40px;
            transition: background 0.2s, color 0.2s;
        }
        nav a:hover {
            background: #eef2f6;
            color: #0f2b4a;
        }
        nav a i {
            margin-right: 6px;
            font-size: 14px;
            color: #2d6a9f;
        }
        .breadcrumb {
            padding: 12px 0 8px;
            font-size: 14px;
            color: #64748b;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 10px;
            list-style: none;
            border-bottom: 1px solid #eef2f6;
            margin-bottom: 24px;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 10px;
            color: #94a3b8;
            font-weight: 600;
        }
        .breadcrumb a {
            color: #2d6a9f;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb .active {
            color: #1e293b;
            font-weight: 500;
        }
        h1 {
            font-size: 38px;
            font-weight: 800;
            line-height: 1.25;
            color: #0f2b4a;
            margin: 16px 0 12px;
            letter-spacing: -0.5px;
        }
        h2 {
            font-size: 28px;
            font-weight: 700;
            color: #0f2b4a;
            margin: 40px 0 16px;
            padding-bottom: 8px;
            border-bottom: 3px solid #e2e8f0;
        }
        h3 {
            font-size: 22px;
            font-weight: 600;
            color: #1a3a5c;
            margin: 32px 0 12px;
        }
        h4 {
            font-size: 18px;
            font-weight: 600;
            color: #2d4a6a;
            margin: 24px 0 10px;
        }
        p {
            margin: 0 0 18px;
            color: #334155;
        }
        .lead {
            font-size: 18px;
            color: #1e293b;
            font-weight: 400;
            line-height: 1.8;
            background: #f1f5f9;
            padding: 16px 20px;
            border-radius: 12px;
            border-left: 4px solid #2d6a9f;
        }
        strong {
            color: #0f2b4a;
            font-weight: 600;
        }
        em {
            color: #2d6a9f;
            font-style: italic;
        }
        .highlight-box {
            background: #f0f7ff;
            border-radius: 14px;
            padding: 20px 24px;
            margin: 24px 0;
            border: 1px solid #dbeafe;
        }
        .highlight-box i {
            color: #2d6a9f;
            margin-right: 8px;
        }
        .featured-image {
            margin: 28px 0 32px;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
        }
        .featured-image img {
            width: 100%;
            height: auto;
            display: block;
            border-radius: 16px;
        }
        .featured-image figcaption {
            padding: 10px 16px;
            background: #f1f5f9;
            font-size: 14px;
            color: #475569;
            font-style: italic;
            text-align: center;
        }
        .time-table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0 32px;
            font-size: 15px;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
        }
        .time-table th {
            background: #0f2b4a;
            color: #fff;
            padding: 12px 16px;
            text-align: left;
            font-weight: 600;
        }
        .time-table td {
            padding: 10px 16px;
            border-bottom: 1px solid #e2e8f0;
            background: #fafcff;
        }
        .time-table tr:last-child td {
            border-bottom: none;
        }
        .time-table tr:hover td {
            background: #f1f5f9;
        }
        .search-section {
            background: #f1f5f9;
            border-radius: 16px;
            padding: 24px 28px;
            margin: 32px 0;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
        }
        .search-section label {
            font-weight: 600;
            color: #0f2b4a;
            font-size: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .search-section input[type="text"] {
            flex: 1;
            min-width: 200px;
            padding: 12px 18px;
            border: 1px solid #cbd5e1;
            border-radius: 40px;
            font-size: 15px;
            outline: none;
            background: #fff;
            transition: border 0.2s;
        }
        .search-section input[type="text"]:focus {
            border-color: #2d6a9f;
            box-shadow: 0 0 0 3px rgba(45, 106, 159, 0.15);
        }
        .search-section button {
            background: #0f2b4a;
            color: #fff;
            border: none;
            padding: 12px 28px;
            border-radius: 40px;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .search-section button:hover {
            background: #1a3a5c;
            transform: scale(1.02);
        }
        .search-section button i {
            font-size: 16px;
        }
        .interaction-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin: 40px 0 32px;
        }
        .comment-box,
        .rating-box {
            background: #f8fafc;
            border-radius: 16px;
            padding: 22px 24px;
            border: 1px solid #e2e8f0;
        }
        .comment-box h3,
        .rating-box h3 {
            margin-top: 0;
            margin-bottom: 14px;
            font-size: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .comment-box textarea {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid #cbd5e1;
            border-radius: 12px;
            font-size: 15px;
            font-family: inherit;
            resize: vertical;
            min-height: 100px;
            outline: none;
            background: #fff;
            transition: border 0.2s;
        }
        .comment-box textarea:focus {
            border-color: #2d6a9f;
            box-shadow: 0 0 0 3px rgba(45, 106, 159, 0.1);
        }
        .comment-box input[type="text"] {
            width: 100%;
            padding: 10px 16px;
            border: 1px solid #cbd5e1;
            border-radius: 12px;
            font-size: 15px;
            margin: 8px 0 12px;
            outline: none;
            background: #fff;
        }
        .comment-box input[type="text"]:focus {
            border-color: #2d6a9f;
        }
        .comment-box button,
        .rating-box button {
            background: #0f2b4a;
            color: #fff;
            border: none;
            padding: 10px 24px;
            border-radius: 40px;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-top: 6px;
        }
        .comment-box button:hover,
        .rating-box button:hover {
            background: #1a3a5c;
            transform: scale(1.02);
        }
        .stars {
            display: flex;
            gap: 6px;
            font-size: 30px;
            color: #cbd5e1;
            cursor: pointer;
            margin: 8px 0 14px;
            transition: color 0.15s;
        }
        .stars i {
            transition: color 0.15s, transform 0.1s;
        }
        .stars i:hover,
        .stars i.active {
            color: #f59e0b;
            transform: scale(1.15);
        }
        .stars i.selected {
            color: #f59e0b;
        }
        .rating-value {
            font-size: 16px;
            font-weight: 600;
            color: #0f2b4a;
            margin-left: 8px;
        }
        friend-link {
            display: block;
            margin: 48px 0 16px;
            padding: 24px 20px;
            background: #f1f5f9;
            border-radius: 16px;
            border-top: 4px solid #0f2b4a;
        }
        friend-link::before {
            content: "🔗 Friend Links";
            display: block;
            font-size: 18px;
            font-weight: 700;
            color: #0f2b4a;
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }
        friend-link a {
            display: inline-block;
            margin: 4px 12px 4px 0;
            color: #2d6a9f;
            text-decoration: none;
            font-weight: 500;
            padding: 4px 8px;
            border-radius: 6px;
            transition: background 0.2s;
        }
        friend-link a:hover {
            background: #e2e8f0;
            text-decoration: underline;
        }
        footer {
            border-top: 2px solid #e2e8f0;
            padding: 24px 0 12px;
            margin-top: 32px;
            text-align: center;
            font-size: 14px;
            color: #64748b;
        }
        footer .copyright {
            font-weight: 400;
        }
        footer .copyright strong {
            color: #0f2b4a;
        }
        @media (max-width: 900px) {
            .container {
                padding: 12px 14px 32px;
                border-radius: 12px;
            }
            h1 {
                font-size: 28px;
            }
            h2 {
                font-size: 22px;
            }
            h3 {
                font-size: 19px;
            }
            .interaction-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .search-section {
                flex-direction: column;
                align-items: stretch;
            }
            .search-section input[type="text"] {
                min-width: auto;
            }
        }
        @media (max-width: 680px) {
            .hamburger {
                display: block;
            }
            nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                padding: 12px 0 4px;
                gap: 4px;
            }
            nav.open {
                display: flex;
            }
            nav a {
                padding: 10px 12px;
                width: 100%;
                border-radius: 8px;
            }
            header {
                flex-wrap: wrap;
            }
            .my-logo {
                font-size: 22px;
            }
            h1 {
                font-size: 24px;
            }
            .time-table {
                font-size: 13px;
            }
            .time-table th,
            .time-table td {
                padding: 8px 10px;
            }
            .breadcrumb {
                font-size: 12px;
            }
            .stars {
                font-size: 26px;
            }
        }
        @media (min-width: 681px) {
            nav {
                display: flex !important;
            }
            .hamburger {
                display: none !important;
            }
        }
        html {
            scroll-behavior: smooth;
        }
        :target {
            scroll-margin-top: 20px;
        }
        .emoji-bullet {
            margin-right: 6px;
        }
        .content a {
            color: #2d6a9f;
            text-decoration: underline;
            text-underline-offset: 2px;
            transition: color 0.2s;
        }
        .content a:hover {
            color: #0f2b4a;
        }
        .update-badge {
            display: inline-block;
            background: #e8f0fe;
            color: #0f2b4a;
            padding: 4px 14px;
            border-radius: 40px;
            font-size: 14px;
            font-weight: 500;
            margin-bottom: 16px;
        }
        .update-badge i {
            margin-right: 6px;
            color: #2d6a9f;
        }
        .toc {
            background: #f8fafc;
            border-radius: 14px;
            padding: 20px 24px;
            margin: 24px 0;
            border: 1px solid #e2e8f0;
        }
        .toc h3 {
            margin-top: 0;
            font-size: 18px;
        }
        .toc ul {
            list-style: none;
            padding-left: 0;
            columns: 2;
            column-gap: 28px;
        }
        .toc ul li {
            padding: 4px 0;
            break-inside: avoid;
        }
        .toc ul li a {
            text-decoration: none;
            color: #2d6a9f;
            font-weight: 500;
        }
        .toc ul li a:hover {
            text-decoration: underline;
        }
        @media (max-width: 600px) {
            .toc ul {
                columns: 1;
            }
        }
        .faq-item {
            padding: 16px 0;
            border-bottom: 1px solid #e2e8f0;
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-item h4 {
            margin: 0 0 6px;
            font-size: 17px;
        }
        .faq-item p {
            margin: 0;
            color: #475569;
        }