*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            background: #f4f7fa;
            color: #1e2a3a;
            line-height: 1.7;
            padding: 0 1rem;
        }
        a {
            color: #0057a3;
            text-decoration: underline;
            transition: color 0.2s;
        }
        a:hover {
            color: #003366;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.5rem;
            margin: 1rem 0;
        }
        li {
            margin-bottom: 0.4rem;
        }
        h1,
        h2,
        h3,
        h4 {
            font-weight: 700;
            line-height: 1.25;
            color: #0a1a2b;
        }
        h1 {
            font-size: 2.2rem;
            margin: 0 0 1rem;
        }
        h2 {
            font-size: 1.75rem;
            margin: 2.2rem 0 1rem;
            border-left: 6px solid #0057a3;
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.35rem;
            margin: 1.8rem 0 0.75rem;
        }
        h4 {
            font-size: 1.1rem;
            margin: 1.4rem 0 0.5rem;
        }
        p {
            margin: 0 0 1.2rem;
        }
        strong {
            color: #003b6f;
        }
        .container {
            max-width: 1120px;
            margin: 0 auto;
            background: #ffffff;
            border-radius: 24px;
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.06);
            padding: 1.5rem 2rem 2rem;
        }
        .site-header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 1.2rem 0 0.8rem;
            border-bottom: 2px solid #e6edf4;
            position: relative;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: #003b6f;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }
        .my-logo i {
            color: #c60b1e;
            font-size: 2rem;
        }
        .my-logo small {
            font-size: 0.8rem;
            font-weight: 400;
            color: #4a5c6e;
            display: block;
            line-height: 1;
            letter-spacing: 0.3px;
        }
        .my-logo:hover {
            color: #00254a;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid #003b6f;
            border-radius: 10px;
            padding: 0.5rem 0.8rem;
            font-size: 1.5rem;
            color: #003b6f;
            cursor: pointer;
            transition: 0.2s;
        }
        .nav-toggle:hover {
            background: #003b6f;
            color: #fff;
        }
        .nav-list {
            display: flex;
            flex-wrap: wrap;
            gap: 0.2rem 0.1rem;
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .nav-list li a {
            display: inline-block;
            padding: 0.5rem 1rem;
            text-decoration: none;
            font-weight: 600;
            font-size: 0.95rem;
            color: #1e2a3a;
            border-radius: 30px;
            transition: background 0.2s, color 0.2s;
        }
        .nav-list li a:hover {
            background: #e6edf4;
            color: #003b6f;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem 0.6rem;
            padding: 0.8rem 0 0.2rem;
            font-size: 0.9rem;
            color: #4a5c6e;
            border-bottom: 1px solid #eef3f8;
            margin-bottom: 1.8rem;
        }
        .breadcrumb a {
            text-decoration: none;
            color: #0057a3;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb .sep {
            color: #8a9aa8;
        }
        .breadcrumb .current {
            color: #1e2a3a;
            font-weight: 600;
        }
        .search-block {
            background: #f0f4fa;
            border-radius: 60px;
            padding: 0.4rem 0.4rem 0.4rem 1.5rem;
            display: flex;
            align-items: center;
            max-width: 480px;
            margin: 1.2rem 0 1.8rem;
            border: 1px solid #dce4ed;
            transition: 0.2s;
        }
        .search-block:focus-within {
            border-color: #0057a3;
            box-shadow: 0 0 0 3px rgba(0, 87, 163, 0.15);
        }
        .search-block i {
            color: #4a5c6e;
            font-size: 1.1rem;
            margin-right: 0.6rem;
        }
        .search-block input {
            flex: 1;
            border: none;
            background: transparent;
            padding: 0.7rem 0;
            font-size: 1rem;
            outline: none;
            font-family: inherit;
        }
        .search-block button {
            background: #0057a3;
            border: none;
            color: #fff;
            font-weight: 600;
            padding: 0.55rem 1.6rem;
            border-radius: 40px;
            cursor: pointer;
            font-size: 0.95rem;
            transition: background 0.2s;
            font-family: inherit;
        }
        .search-block button:hover {
            background: #003b6f;
        }
        .last-updated {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.85rem;
            color: #4a5c6e;
            background: #f0f4fa;
            padding: 0.3rem 1rem 0.3rem 0.8rem;
            border-radius: 30px;
            margin-bottom: 1rem;
            border: 1px solid #e0e8f0;
        }
        .last-updated i {
            color: #0057a3;
        }
        figure {
            margin: 2rem 0;
            background: #f7fafc;
            border-radius: 16px;
            padding: 1rem;
            text-align: center;
        }
        figure img {
            border-radius: 12px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
        }
        figure figcaption {
            margin-top: 0.7rem;
            font-size: 0.9rem;
            color: #2d4055;
            font-style: italic;
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.8rem;
            margin: 2.5rem 0;
        }
        .feedback-card {
            background: #f7fafc;
            border-radius: 20px;
            padding: 1.6rem 1.8rem;
            border: 1px solid #e6edf4;
        }
        .feedback-card h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 1.2rem;
        }
        .feedback-card h3 i {
            color: #0057a3;
        }
        .feedback-card form {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
            margin-top: 0.5rem;
        }
        .feedback-card input,
        .feedback-card textarea,
        .feedback-card select {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 1px solid #d0dae6;
            border-radius: 12px;
            font-size: 0.95rem;
            font-family: inherit;
            background: #fff;
            transition: 0.2s;
        }
        .feedback-card input:focus,
        .feedback-card textarea:focus,
        .feedback-card select:focus {
            border-color: #0057a3;
            box-shadow: 0 0 0 3px rgba(0, 87, 163, 0.1);
            outline: none;
        }
        .feedback-card textarea {
            min-height: 80px;
            resize: vertical;
        }
        .feedback-card .star-select {
            display: flex;
            gap: 0.4rem;
            align-items: center;
            font-size: 1.3rem;
        }
        .feedback-card .star-select label {
            cursor: pointer;
            color: #d0dae6;
            transition: color 0.15s;
        }
        .feedback-card .star-select input {
            display: none;
        }
        .feedback-card .star-select label:hover,
        .feedback-card .star-select input:checked~label {
            color: #f5a623;
        }
        .feedback-card .star-select:has(input:checked) label {
            color: #f5a623;
        }
        .feedback-card .btn-submit {
            background: #0057a3;
            color: #fff;
            border: none;
            padding: 0.7rem 1.6rem;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            font-size: 1rem;
            transition: background 0.2s;
            align-self: flex-start;
            font-family: inherit;
        }
        .feedback-card .btn-submit:hover {
            background: #003b6f;
        }
        .feedback-card .btn-submit i {
            margin-right: 0.5rem;
        }
        friend-link {
            display: block;
            padding: 1.8rem 0 1rem;
            border-top: 2px solid #e6edf4;
            margin-top: 2rem;
        }
        friend-link h4 {
            font-size: 1.1rem;
            margin-bottom: 0.8rem;
            color: #003b6f;
        }
        friend-link ul {
            list-style: none;
            padding: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem 1.4rem;
        }
        friend-link ul li a {
            text-decoration: none;
            font-size: 0.95rem;
            background: #f0f4fa;
            padding: 0.3rem 1rem;
            border-radius: 30px;
            transition: background 0.2s;
            display: inline-block;
        }
        friend-link ul li a:hover {
            background: #dce4ed;
            text-decoration: underline;
        }
        .site-footer {
            padding: 1.8rem 0 1rem;
            border-top: 2px solid #e6edf4;
            margin-top: 1rem;
            text-align: center;
            font-size: 0.9rem;
            color: #4a5c6e;
        }
        .site-footer .copyright {
            font-weight: 500;
            letter-spacing: 0.2px;
        }
        .site-footer .copyright i {
            color: #c60b1e;
        }
        @media (max-width: 820px) {
            .container {
                padding: 1rem 1.2rem;
            }
            h1 {
                font-size: 1.7rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            .feedback-grid {
                grid-template-columns: 1fr;
                gap: 1.2rem;
            }
            .nav-toggle {
                display: block;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #ffffff;
                padding: 1rem 0 0.5rem;
                border-top: 1px solid #e6edf4;
                margin-top: 0.8rem;
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list li a {
                padding: 0.6rem 1rem;
                border-radius: 12px;
            }
            .search-block {
                max-width: 100%;
                flex-wrap: wrap;
                border-radius: 30px;
                padding: 0.4rem 0.4rem 0.4rem 1rem;
            }
            .search-block button {
                padding: 0.5rem 1.2rem;
                font-size: 0.9rem;
            }
            .my-logo {
                font-size: 1.5rem;
            }
            figure {
                padding: 0.6rem;
            }
        }
        @media (max-width: 480px) {
            body {
                padding: 0 0.5rem;
            }
            .container {
                padding: 0.8rem 0.8rem;
                border-radius: 16px;
            }
            h1 {
                font-size: 1.4rem;
            }
            h2 {
                font-size: 1.2rem;
                padding-left: 0.6rem;
            }
            h3 {
                font-size: 1.1rem;
            }
            .breadcrumb {
                font-size: 0.8rem;
            }
            .feedback-card {
                padding: 1.2rem;
            }
            .search-block input {
                font-size: 0.9rem;
            }
        }
        .text-muted {
            color: #4a5c6e;
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .flex {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            flex-wrap: wrap;
        }
        .emoji-big {
            font-size: 1.8rem;
            line-height: 1;
        }
        .highlight-box {
            background: #f0f7ff;
            border-left: 6px solid #0057a3;
            padding: 1.2rem 1.6rem;
            border-radius: 12px;
            margin: 1.6rem 0;
        }
        .highlight-box p:last-child {
            margin-bottom: 0;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.4rem 0;
        }
        .table-wrap table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
            min-width: 480px;
        }
        .table-wrap th {
            background: #003b6f;
            color: #fff;
            padding: 0.7rem 1rem;
            text-align: left;
        }
        .table-wrap td {
            padding: 0.6rem 1rem;
            border-bottom: 1px solid #e6edf4;
        }
        .table-wrap tr:nth-child(even) td {
            background: #f7fafc;
        }
        .tag {
            display: inline-block;
            background: #e0ebf5;
            color: #003b6f;
            padding: 0.15rem 0.8rem;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
        }