*,
        *::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: #f6f8fa;
            color: #1e293b;
            line-height: 1.7;
            padding: 0 1rem;
        }
        a {
            color: #0f3b5e;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #ba2d2d;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            background: #fff;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.06);
            border-radius: 28px;
            padding: 1.5rem 2rem 2rem;
        }
        @media (max-width: 640px) {
            .container {
                padding: 1rem 1rem 1.5rem;
                border-radius: 16px;
            }
            body {
                padding: 0 0.5rem;
            }
        }
        h1 {
            font-size: 2.6rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.2;
            margin: 1.2rem 0 0.8rem;
            color: #0b2a3b;
        }
        h2 {
            font-size: 2rem;
            font-weight: 700;
            margin: 2.4rem 0 1rem 0;
            padding-bottom: 0.4rem;
            border-bottom: 3px solid #e2e8f0;
            color: #0f3b5e;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 600;
            margin: 1.8rem 0 0.8rem 0;
            color: #1e4a6a;
        }
        h4 {
            font-size: 1.2rem;
            font-weight: 600;
            margin: 1.2rem 0 0.5rem 0;
            color: #2d5a7a;
        }
        p {
            margin-bottom: 1.2rem;
            font-size: 1.05rem;
        }
        .small-text {
            font-size: 0.92rem;
            color: #5a6c7d;
        }
        .emoji-big {
            font-size: 1.8rem;
            margin-right: 0.3rem;
        }
        .highlight {
            background: #fef9e7;
            padding: 0.1rem 0.4rem;
            border-radius: 6px;
            font-weight: 600;
        }
        .last-updated {
            display: inline-block;
            background: #eef2f6;
            padding: 0.3rem 1rem;
            border-radius: 30px;
            font-size: 0.9rem;
            color: #2c3e50;
            margin-bottom: 1rem;
        }
        @media (max-width: 640px) {
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            h3 {
                font-size: 1.25rem;
            }
            h4 {
                font-size: 1.1rem;
            }
            p {
                font-size: 1rem;
            }
        }
        .header-top {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 0.6rem 0 0.8rem;
            border-bottom: 1px solid #e2e8f0;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            background: linear-gradient(145deg, #0f3b5e, #ba2d2d);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.03em;
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }
        .my-logo small {
            font-size: 0.7rem;
            -webkit-text-fill-color: #5a6c7d;
            color: #5a6c7d;
            font-weight: 400;
            background: none;
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none;
        }
        .nav-bar {
            display: flex;
            align-items: center;
            gap: 1.5rem;
            flex-wrap: wrap;
        }
        .nav-bar a {
            font-weight: 500;
            padding: 0.4rem 0;
            position: relative;
            color: #1e293b;
        }
        .nav-bar a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: #ba2d2d;
            transition: width 0.25s;
        }
        .nav-bar a:hover::after {
            width: 100%;
        }
        .nav-bar a:hover {
            text-decoration: none;
            color: #ba2d2d;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: #0f3b5e;
            cursor: pointer;
            padding: 0.2rem 0.6rem;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: #eef2f6;
        }
        @media (max-width: 780px) {
            .hamburger {
                display: inline-block;
            }
            .nav-bar {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 0.2rem;
                padding: 1rem 0 0.5rem;
                border-top: 1px solid #e2e8f0;
                margin-top: 0.5rem;
            }
            .nav-bar.open {
                display: flex;
            }
            .header-top {
                flex-wrap: wrap;
            }
            .my-logo {
                font-size: 1.7rem;
            }
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.4rem 0.6rem;
            font-size: 0.9rem;
            padding: 0.6rem 0 0.2rem;
            color: #6c7a8a;
        }
        .breadcrumb a {
            color: #0f3b5e;
        }
        .breadcrumb span {
            color: #9aa6b5;
        }
        .feature-img {
            margin: 1.8rem 0 2rem;
            border-radius: 16px;
            background: #eef2f6;
            overflow: hidden;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
        }
        .feature-img img {
            width: 100%;
            max-height: 480px;
            object-fit: cover;
        }
        .feature-img figcaption {
            padding: 0.6rem 1rem;
            font-size: 0.9rem;
            color: #3d5a73;
            background: #f8fafc;
            border-top: 1px solid #e2e8f0;
        }
        .link-group {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem 1.2rem;
            margin: 1.2rem 0 1.8rem;
            padding: 0.6rem 0;
        }
        .link-group a {
            background: #f1f5f9;
            padding: 0.3rem 1rem 0.3rem 1.2rem;
            border-radius: 30px;
            font-size: 0.95rem;
            border-left: 3px solid #ba2d2d;
            transition: background 0.2s, transform 0.1s;
        }
        .link-group a:hover {
            background: #e2e8f0;
            transform: translateY(-1px);
            text-decoration: none;
        }
        .search-box {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
            max-width: 600px;
            margin: 2rem 0 2.5rem;
            padding: 1.2rem 1.5rem;
            background: #f8fafc;
            border-radius: 20px;
            border: 1px solid #e2e8f0;
        }
        .search-box label {
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            width: 100%;
            margin-bottom: 0.2rem;
        }
        .search-box input[type="text"] {
            flex: 1;
            min-width: 180px;
            padding: 0.7rem 1rem;
            border: 1px solid #d0d9e3;
            border-radius: 40px;
            font-size: 1rem;
            outline: none;
            transition: border 0.2s;
        }
        .search-box input[type="text"]:focus {
            border-color: #0f3b5e;
        }
        .search-box button {
            background: #0f3b5e;
            color: #fff;
            border: none;
            padding: 0.7rem 1.8rem;
            border-radius: 40px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .search-box button:hover {
            background: #ba2d2d;
            transform: scale(1.02);
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            margin: 2.5rem 0 1.5rem;
        }
        @media (max-width: 700px) {
            .feedback-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
        }
        .comment-area,
        .score-area {
            background: #f8fafc;
            padding: 1.5rem 1.8rem;
            border-radius: 24px;
            border: 1px solid #e2e8f0;
        }
        .comment-area h3,
        .score-area h3 {
            margin-top: 0;
            margin-bottom: 0.8rem;
            font-size: 1.3rem;
        }
        .comment-area textarea {
            width: 100%;
            min-height: 100px;
            padding: 0.8rem 1rem;
            border: 1px solid #d0d9e3;
            border-radius: 16px;
            font-size: 1rem;
            font-family: inherit;
            resize: vertical;
            outline: none;
            transition: border 0.2s;
        }
        .comment-area textarea:focus {
            border-color: #0f3b5e;
        }
        .comment-area button,
        .score-area button {
            background: #0f3b5e;
            color: #fff;
            border: none;
            padding: 0.6rem 1.6rem;
            border-radius: 40px;
            font-weight: 600;
            font-size: 1rem;
            margin-top: 0.6rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .comment-area button:hover,
        .score-area button:hover {
            background: #ba2d2d;
            transform: scale(1.02);
        }
        .star-rating {
            display: flex;
            gap: 0.5rem;
            font-size: 2rem;
            color: #d0d9e3;
            cursor: pointer;
            margin: 0.4rem 0 0.8rem;
        }
        .star-rating i {
            transition: color 0.15s, transform 0.1s;
        }
        .star-rating i:hover,
        .star-rating i.active {
            color: #f5b342;
            transform: scale(1.1);
        }
        .star-rating i.selected {
            color: #f5b342;
        }
        footer {
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 2px solid #e2e8f0;
        }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 1.2rem 2rem;
            justify-content: center;
            margin-bottom: 1.2rem;
        }
        .footer-links a {
            color: #2c3e50;
            font-weight: 500;
        }
        .footer-links a:hover {
            color: #ba2d2d;
        }
        friend-link {
            display: block;
            text-align: center;
            padding: 1.2rem 0 0.6rem;
            font-size: 0.95rem;
            color: #3d5a73;
        }
        friend-link a {
            margin: 0 0.6rem;
            color: #0f3b5e;
            font-weight: 500;
        }
        friend-link a:hover {
            color: #ba2d2d;
        }
        .copyright {
            text-align: center;
            padding: 1.2rem 0 0.4rem;
            font-size: 0.9rem;
            color: #6c7a8a;
            border-top: 1px solid #e2e8f0;
            margin-top: 0.8rem;
        }
        .inline-list {
            list-style: none;
            padding-left: 0.2rem;
        }
        .inline-list li {
            padding: 0.3rem 0;
            display: flex;
            gap: 0.6rem;
            align-items: baseline;
        }
        .inline-list li::before {
            content: '▹';
            color: #ba2d2d;
            font-weight: 700;
        }
        .badge {
            display: inline-block;
            background: #dce7f0;
            padding: 0.15rem 0.8rem;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 600;
            color: #0f3b5e;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.2rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.98rem;
        }
        th,
        td {
            padding: 0.7rem 1rem;
            text-align: left;
            border-bottom: 1px solid #e2e8f0;
        }
        th {
            background: #f1f5f9;
            font-weight: 600;
        }
        @media (max-width: 640px) {
            table {
                font-size: 0.9rem;
            }
            th,
            td {
                padding: 0.5rem 0.6rem;
            }
        }
        @media (max-width: 480px) {
            .search-box {
                padding: 1rem;
            }
            .search-box input[type="text"] {
                min-width: 120px;
            }
            .feedback-grid {
                gap: 1rem;
            }
            .comment-area,
            .score-area {
                padding: 1rem 1.2rem;
            }
            .star-rating {
                font-size: 1.6rem;
            }
        }