*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', 'San Francisco', Roboto, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
            background: #f8f9fc;
            color: #1e2a3a;
            line-height: 1.75;
            padding: 0 1rem;
            max-width: 1280px;
            margin: 0 auto;
        }
        a {
            color: #0f6cbf;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #084a8a;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            margin-top: 0;
            color: #0b1a2b;
        }
        h1 {
            font-size: 2.25rem;
            margin-bottom: 1rem;
            border-bottom: 4px solid #f5a623;
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 1.75rem;
            margin-top: 2.5rem;
            margin-bottom: 0.75rem;
            border-left: 6px solid #f5a623;
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.35rem;
            margin-top: 1.75rem;
            margin-bottom: 0.5rem;
            color: #1e3a5f;
        }
        h4 {
            font-size: 1.1rem;
            margin-top: 1.25rem;
            margin-bottom: 0.25rem;
            color: #2c4a6e;
        }
        p {
            margin-bottom: 1.25rem;
            letter-spacing: 0.01em;
        }
        ul,
        ol {
            margin: 0.75rem 0 1.5rem 1.75rem;
        }
        li {
            margin-bottom: 0.4rem;
        }
        blockquote {
            border-left: 4px solid #f5a623;
            background: #fef9ee;
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 12px 12px 0;
            font-style: italic;
            color: #3d4f66;
        }
        hr {
            border: none;
            border-top: 2px dashed #dce3ed;
            margin: 2.5rem 0;
        }
        .container {
            padding: 0 0.5rem;
        }
        header {
            padding: 1.25rem 0 0.5rem;
            position: relative;
            background: #ffffff;
            border-radius: 0 0 20px 20px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
        }
        .header-top {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 0.75rem;
            padding: 0 0.5rem 0.75rem;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #f5a623, #e07c2f);
            background-clip: text;
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            text-shadow: 0 2px 8px rgba(245, 166, 35, 0.2);
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }
        .my-logo i {
            -webkit-text-fill-color: #f5a623;
            font-size: 1.6rem;
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none;
        }
        .nav-bar {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            background: #0b1a2b;
            border-radius: 40px;
            padding: 0.4rem 0.8rem 0.4rem 1.5rem;
            margin: 0.5rem 0 0;
        }
        .nav-links {
            display: flex;
            flex-wrap: wrap;
            gap: 0.2rem;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links li a {
            display: inline-block;
            padding: 0.5rem 0.9rem;
            border-radius: 30px;
            color: #f0f4fa;
            font-size: 0.9rem;
            font-weight: 500;
            transition: background 0.25s, color 0.25s;
        }
        .nav-links li a:hover {
            background: #f5a623;
            color: #0b1a2b;
            text-decoration: none;
        }
        .nav-links li a i {
            margin-right: 0.35rem;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: #f5a623;
            cursor: pointer;
            padding: 0.25rem 0.5rem;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: rgba(245, 166, 35, 0.15);
        }
        .breadcrumb {
            padding: 0.6rem 0.2rem 0.2rem;
            font-size: 0.85rem;
            color: #5a6f84;
        }
        .breadcrumb a {
            color: #0f6cbf;
        }
        .breadcrumb a:hover {
            color: #084a8a;
        }
        .breadcrumb span {
            margin: 0 0.3rem;
            color: #9aafc4;
        }
        .search-section {
            background: #ffffff;
            border-radius: 20px;
            padding: 1.5rem 1.8rem;
            margin: 1.5rem 0;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
            border: 1px solid #eef2f7;
        }
        .search-form {
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
            align-items: center;
        }
        .search-form input[type="text"] {
            flex: 1 1 240px;
            padding: 0.75rem 1.2rem;
            border: 2px solid #dce3ed;
            border-radius: 40px;
            font-size: 1rem;
            outline: none;
            transition: border 0.25s, box-shadow 0.25s;
            background: #f8f9fc;
        }
        .search-form input[type="text"]:focus {
            border-color: #f5a623;
            box-shadow: 0 0 0 4px rgba(245, 166, 35, 0.15);
        }
        .search-form button {
            padding: 0.75rem 1.8rem;
            background: #f5a623;
            border: none;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 600;
            color: #0b1a2b;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .search-form button:hover {
            background: #e5941a;
            transform: scale(1.02);
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .feedback-card {
            background: #ffffff;
            border-radius: 20px;
            padding: 1.5rem 1.8rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
            border: 1px solid #eef2f7;
        }
        .feedback-card h3 {
            margin-top: 0;
            font-size: 1.3rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .feedback-card textarea,
        .feedback-card input[type="text"],
        .feedback-card select {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 2px solid #dce3ed;
            border-radius: 12px;
            font-size: 0.95rem;
            font-family: inherit;
            outline: none;
            transition: border 0.25s;
            background: #f8f9fc;
            margin-bottom: 0.75rem;
        }
        .feedback-card textarea:focus,
        .feedback-card input:focus,
        .feedback-card select:focus {
            border-color: #f5a623;
        }
        .feedback-card textarea {
            min-height: 90px;
            resize: vertical;
        }
        .feedback-card button {
            padding: 0.65rem 1.6rem;
            background: #0b1a2b;
            color: #fff;
            border: none;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .feedback-card button:hover {
            background: #1e3a5f;
            transform: scale(1.02);
        }
        .star-rating {
            display: flex;
            gap: 0.25rem;
            font-size: 1.8rem;
            color: #dce3ed;
            cursor: pointer;
            margin-bottom: 0.75rem;
        }
        .star-rating i.active {
            color: #f5a623;
        }
        .star-rating i:hover,
        .star-rating i.hover {
            color: #f5a623;
        }
        .feature-image {
            margin: 2rem 0;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
        }
        .feature-image figcaption {
            padding: 0.75rem 1rem;
            background: #fef9ee;
            font-size: 0.9rem;
            color: #4a5f74;
            text-align: center;
            border-top: 2px solid #f5a623;
        }
        footer {
            margin-top: 3rem;
            padding: 2rem 0.5rem 1.5rem;
            border-top: 2px solid #dce3ed;
            background: #ffffff;
            border-radius: 20px 20px 0 0;
            box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.04);
        }
        friend-link {
            display: block;
            padding: 1rem 0.5rem;
            background: #f8f9fc;
            border-radius: 16px;
            margin-bottom: 1.5rem;
            font-size: 0.95rem;
        }
        friend-link a {
            display: inline-block;
            margin: 0.3rem 1.2rem 0.3rem 0;
            padding: 0.3rem 0.8rem;
            background: #eef2f7;
            border-radius: 30px;
            font-weight: 500;
            transition: background 0.2s;
        }
        friend-link a:hover {
            background: #f5a623;
            color: #0b1a2b;
            text-decoration: none;
        }
        .copyright {
            text-align: center;
            color: #5a6f84;
            font-size: 0.9rem;
            padding-top: 1rem;
            border-top: 1px solid #eef2f7;
        }
        .copyright strong {
            color: #0b1a2b;
        }
        .update-badge {
            display: inline-block;
            background: #f5a623;
            color: #0b1a2b;
            padding: 0.2rem 1rem;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.3px;
        }
        @media (max-width: 768px) {
            body {
                padding: 0 0.5rem;
            }
            h1 {
                font-size: 1.6rem;
            }
            h2 {
                font-size: 1.35rem;
            }
            h3 {
                font-size: 1.15rem;
            }
            .header-top {
                flex-direction: column;
                align-items: stretch;
                text-align: center;
            }
            .my-logo {
                justify-content: center;
                font-size: 1.6rem;
            }
            .nav-bar {
                flex-wrap: wrap;
                padding: 0.5rem 1rem;
                border-radius: 30px;
                gap: 0.25rem;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                gap: 0.15rem;
                padding: 0.5rem 0 0.25rem;
            }
            .nav-links.show {
                display: flex;
            }
            .nav-links li a {
                padding: 0.5rem 1rem;
                width: 100%;
                border-radius: 20px;
            }
            .hamburger {
                display: block;
            }
            .feedback-grid {
                grid-template-columns: 1fr;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form input[type="text"] {
                flex: 1 1 auto;
                width: 100%;
            }
            .search-form button {
                width: 100%;
                justify-content: center;
            }
            .breadcrumb {
                font-size: 0.75rem;
                white-space: nowrap;
                overflow-x: auto;
                padding: 0.4rem 0;
            }
            .star-rating {
                font-size: 1.5rem;
            }
            friend-link a {
                display: block;
                margin: 0.3rem 0;
            }
        }
        @media (min-width: 769px) and (max-width: 1024px) {
            .feedback-grid {
                grid-template-columns: 1fr 1fr;
            }
            .nav-links li a {
                padding: 0.4rem 0.6rem;
                font-size: 0.8rem;
            }
        }
        .text-muted {
            color: #5a6f84;
        }
        .mt-2 {
            margin-top: 1.5rem;
        }
        .mb-1 {
            margin-bottom: 0.75rem;
        }
        .flex-center {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .tag {
            display: inline-block;
            background: #eef2f7;
            padding: 0.15rem 0.7rem;
            border-radius: 30px;
            font-size: 0.75rem;
            font-weight: 600;
            color: #1e3a5f;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.5rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            background: #ffffff;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
        }
        th,
        td {
            padding: 0.75rem 1rem;
            border-bottom: 1px solid #eef2f7;
            text-align: left;
        }
        th {
            background: #0b1a2b;
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
        }
        tr:last-child td {
            border-bottom: none;
        }
        tr:hover td {
            background: #f8f9fc;
        }
        :target {
            scroll-margin-top: 80px;
        }