* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, sans-serif;
            line-height: 1.7;
            background: #f8fafc;
            color: #1e293b;
            padding: 0 1rem;
        }
        a {
            color: #0f3b5e;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #d97706;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            background: #ffffff;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
            border-radius: 20px;
            padding: 1.5rem 2rem 2rem;
        }
        h1 {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.2;
            margin: 1.2rem 0 0.6rem;
            color: #0b2a3e;
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin: 2.4rem 0 1rem;
            border-left: 6px solid #d97706;
            padding-left: 1rem;
            color: #0b2a3e;
        }
        h3 {
            font-size: 1.35rem;
            font-weight: 600;
            margin: 1.8rem 0 0.6rem;
            color: #1e3a5a;
        }
        h4 {
            font-size: 1.1rem;
            font-weight: 600;
            margin: 1.4rem 0 0.4rem;
            color: #2c4a6e;
        }
        p {
            margin-bottom: 1.2rem;
            color: #334155;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 400;
            color: #1e293b;
            background: #f1f5f9;
            padding: 1.2rem 1.8rem;
            border-radius: 16px;
            border-left: 4px solid #d97706;
        }
        .highlight {
            background: linear-gradient(to right, #fef9c3, #fde68a);
            padding: 0.1rem 0.4rem;
            border-radius: 6px;
            font-weight: 600;
        }
        .small-meta {
            font-size: 0.85rem;
            color: #64748b;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-wrap: wrap;
            margin-bottom: 1.2rem;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            padding: 1rem 0 0.5rem;
            border-bottom: 2px solid #e2e8f0;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            background: linear-gradient(135deg, #0b2a3e, #1e5a7a);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.03em;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .my-logo i {
            -webkit-text-fill-color: #d97706;
            font-size: 2rem;
        }
        .my-logo:hover {
            opacity: 0.85;
        }
        .nav-bar {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-wrap: wrap;
        }
        .nav-bar a {
            padding: 0.5rem 1rem;
            border-radius: 30px;
            font-weight: 500;
            font-size: 0.9rem;
            color: #1e293b;
            transition: all 0.2s;
        }
        .nav-bar a:hover {
            background: #d97706;
            color: #fff;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: #0b2a3e;
            cursor: pointer;
            padding: 0.3rem 0.6rem;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: #e2e8f0;
        }
        #nav-toggle {
            display: none;
        }
        #nav-toggle:checked~.nav-bar {
            display: flex;
            flex-direction: column;
            width: 100%;
            background: #ffffff;
            padding: 1rem 0;
            border-top: 1px solid #e2e8f0;
            margin-top: 0.6rem;
        }
        #nav-toggle:checked~.nav-bar a {
            width: 100%;
            text-align: center;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem 0.8rem;
            padding: 0.8rem 0 0.2rem;
            font-size: 0.85rem;
            color: #64748b;
            list-style: none;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.6rem;
            color: #94a3b8;
            font-weight: 600;
        }
        .breadcrumb a {
            color: #0f3b5e;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .search-form {
            display: flex;
            gap: 0.4rem;
            max-width: 480px;
            margin: 1.6rem 0 0.8rem;
            flex-wrap: wrap;
        }
        .search-form input {
            flex: 1;
            padding: 0.7rem 1.2rem;
            border: 2px solid #cbd5e1;
            border-radius: 40px;
            font-size: 0.95rem;
            outline: none;
            transition: border 0.2s;
            min-width: 160px;
        }
        .search-form input:focus {
            border-color: #d97706;
        }
        .search-form button {
            padding: 0.7rem 1.6rem;
            background: #0b2a3e;
            color: #fff;
            border: none;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .search-form button:hover {
            background: #d97706;
        }
        .feature-img {
            margin: 1.8rem 0 2rem;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.06);
        }
        .feature-img img {
            width: 100%;
            max-height: 420px;
            object-fit: cover;
        }
        .feature-img figcaption {
            padding: 0.6rem 1rem;
            font-size: 0.85rem;
            color: #475569;
            background: #f8fafc;
            border-top: 1px solid #e2e8f0;
        }
        .user-feedback {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            margin: 3rem 0 1.5rem;
            padding: 2rem 0;
            border-top: 2px solid #e2e8f0;
            border-bottom: 2px solid #e2e8f0;
        }
        .feedback-section h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .feedback-section form {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
            margin-top: 0.8rem;
        }
        .feedback-section input,
        .feedback-section textarea,
        .feedback-section select {
            padding: 0.7rem 1rem;
            border: 2px solid #cbd5e1;
            border-radius: 12px;
            font-size: 0.95rem;
            outline: none;
            transition: border 0.2s;
            width: 100%;
        }
        .feedback-section input:focus,
        .feedback-section textarea:focus,
        .feedback-section select:focus {
            border-color: #d97706;
        }
        .feedback-section textarea {
            min-height: 90px;
            resize: vertical;
        }
        .feedback-section .btn-submit {
            padding: 0.7rem 1.8rem;
            background: #d97706;
            color: #fff;
            border: none;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
            align-self: flex-start;
        }
        .feedback-section .btn-submit:hover {
            background: #b85e00;
        }
        .star-select {
            display: flex;
            gap: 0.3rem;
            font-size: 1.6rem;
            color: #fbbf24;
            cursor: pointer;
        }
        .star-select i {
            transition: transform 0.15s;
        }
        .star-select i:hover {
            transform: scale(1.2);
        }
        .related-links {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem 1.2rem;
            padding: 1rem 0;
            margin: 1.6rem 0;
            list-style: none;
        }
        .related-links li a {
            background: #f1f5f9;
            padding: 0.3rem 1rem;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 500;
            border: 1px solid #e2e8f0;
            transition: all 0.2s;
            display: inline-block;
        }
        .related-links li a:hover {
            background: #d97706;
            color: #fff;
            border-color: #d97706;
        }
        footer {
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 2px solid #e2e8f0;
            font-size: 0.9rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2rem;
            padding-bottom: 1.6rem;
        }
        .footer-grid h4 {
            margin-top: 0;
            color: #0b2a3e;
        }
        .footer-grid ul {
            list-style: none;
            padding: 0;
        }
        .footer-grid li {
            margin-bottom: 0.4rem;
        }
        .footer-grid a {
            color: #1e293b;
        }
        .footer-grid a:hover {
            color: #d97706;
        }
        friend-link {
            display: block;
            padding: 1rem 1.2rem;
            background: #f1f5f9;
            border-radius: 16px;
            margin: 1.2rem 0;
            font-weight: 500;
            line-height: 2;
        }
        friend-link a {
            padding: 0.2rem 0.8rem;
            border-radius: 20px;
            background: #ffffff;
            display: inline-block;
            margin: 0.2rem 0.3rem;
            border: 1px solid #e2e8f0;
            font-weight: 500;
            font-size: 0.9rem;
        }
        friend-link a:hover {
            background: #d97706;
            color: #fff;
            border-color: #d97706;
        }
        .copyright {
            text-align: center;
            padding: 1.2rem 0 0.6rem;
            font-size: 0.85rem;
            color: #64748b;
            border-top: 1px solid #e2e8f0;
            margin-top: 1rem;
        }
        .copyright strong {
            color: #1e293b;
        }
        @media (max-width: 768px) {
            .container {
                padding: 1rem 1.2rem;
            }
            h1 {
                font-size: 1.7rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1.15rem;
            }
            .header-top {
                flex-wrap: wrap;
            }
            .hamburger {
                display: inline-block;
            }
            .nav-bar {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                padding: 0.6rem 0;
            }
            .nav-bar a {
                text-align: center;
                padding: 0.6rem 1rem;
            }
            #nav-toggle:checked~.nav-bar {
                display: flex;
            }
            .user-feedback {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.4rem;
            }
            .feature-img img {
                max-height: 240px;
            }
            .breadcrumb {
                font-size: 0.8rem;
            }
            .search-form {
                max-width: 100%;
            }
            .search-form input {
                min-width: 120px;
            }
            .lead {
                font-size: 1rem;
                padding: 1rem 1.2rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0.8rem 0.8rem;
            }
            h1 {
                font-size: 1.4rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .my-logo i {
                font-size: 1.5rem;
            }
            .star-select {
                font-size: 1.3rem;
            }
        }
        .emoji-big {
            font-size: 1.6rem;
            vertical-align: middle;
        }
        .tag {
            display: inline-block;
            background: #dbeafe;
            color: #1e3a5a;
            padding: 0.1rem 0.8rem;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-right: 0.3rem;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.6rem;
            margin: 1.6rem 0;
        }
        @media (max-width: 600px) {
            .grid-2 {
                grid-template-columns: 1fr;
            }
        }
        .card {
            background: #f8fafc;
            padding: 1.4rem 1.6rem;
            border-radius: 18px;
            border: 1px solid #e2e8f0;
            transition: transform 0.2s;
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.04);
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.6rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.9rem;
        }
        th,
        td {
            padding: 0.7rem 1rem;
            text-align: left;
            border-bottom: 1px solid #e2e8f0;
        }
        th {
            background: #0b2a3e;
            color: #fff;
            font-weight: 600;
        }
        tr:hover {
            background: #f1f5f9;
        }