*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
            background: #f4f7fc;
            color: #1e2a3a;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: #0057b3;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover,
        a:focus {
            color: #ff6a13;
            text-decoration: underline;
        }
        ul,
        ol {
            padding-left: 1.4rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            margin-top: 1.8rem;
            margin-bottom: 0.6rem;
            font-weight: 600;
            color: #0f1a2e;
        }
        h1 {
            font-size: 2.4rem;
            margin-top: 0.4rem;
            border-bottom: 3px solid #ff6a13;
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 1.8rem;
            border-left: 5px solid #0057b3;
            padding-left: 0.9rem;
        }
        h3 {
            font-size: 1.35rem;
            font-weight: 500;
        }
        h4 {
            font-size: 1.1rem;
            font-weight: 500;
            color: #2c3e5a;
        }
        p {
            margin-bottom: 1.1rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.2rem;
        }
        .site-header {
            background: linear-gradient(145deg, #0b1729 0%, #1a2f4a 100%);
            color: #fff;
            padding: 0.8rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 700;
            letter-spacing: -0.5px;
            color: #fff;
            background: linear-gradient(135deg, #ff6a13, #ffb347);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            transition: transform 0.2s ease;
        }
        .my-logo:hover {
            transform: scale(1.03);
            text-decoration: none;
        }
        .my-logo small {
            font-size: 0.85rem;
            font-weight: 400;
            -webkit-text-fill-color: #aac9ff;
            color: #aac9ff;
            letter-spacing: 1px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            font-size: 1.6rem;
            padding: 0.3rem 0.8rem;
            border-radius: 6px;
            cursor: pointer;
            transition: 0.2s;
        }
        .nav-toggle:hover {
            border-color: #ff6a13;
            background: rgba(255, 106, 19, 0.15);
        }
        .main-nav {
            display: flex;
            gap: 0.2rem;
            flex-wrap: wrap;
            align-items: center;
        }
        .main-nav a {
            color: #e0edff;
            padding: 0.5rem 1rem;
            border-radius: 30px;
            font-size: 0.92rem;
            font-weight: 500;
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        .main-nav a:hover,
        .main-nav a:focus {
            background: rgba(255, 106, 19, 0.2);
            color: #ffb347;
            text-decoration: none;
        }
        .main-nav a i {
            margin-right: 6px;
            font-size: 0.85rem;
        }
        .breadcrumb {
            background: #e9eef3;
            padding: 0.6rem 1.2rem;
            font-size: 0.88rem;
            border-bottom: 1px solid #d0dae6;
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem;
        }
        .breadcrumb a {
            color: #2c5f8a;
        }
        .breadcrumb a::after {
            content: "›";
            margin: 0 0.4rem;
            color: #7b8fa0;
        }
        .breadcrumb span {
            color: #1e2a3a;
            font-weight: 500;
        }
        .hero-figure {
            margin: 1.6rem 0 2rem 0;
            border-radius: 14px;
            overflow: hidden;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
            background: #dce3ed;
        }
        .hero-figure img {
            width: 100%;
            height: auto;
            aspect-ratio: 1200 / 630;
            object-fit: cover;
            display: block;
        }
        .hero-figure figcaption {
            padding: 0.6rem 1rem;
            background: #f0f4fa;
            font-size: 0.9rem;
            color: #2d4a6b;
            font-style: italic;
        }
        .content-area {
            background: #fff;
            border-radius: 14px;
            padding: 2rem 2.2rem;
            margin: 1.5rem 0 2rem 0;
            box-shadow: 0 6px 28px rgba(0, 0, 0, 0.04);
        }
        .content-area p,
        .content-area li {
            font-size: 1.02rem;
            color: #1f2e40;
        }
        .content-area .feature-box {
            background: #f2f7ff;
            border-left: 5px solid #0057b3;
            padding: 1.2rem 1.6rem;
            border-radius: 0 10px 10px 0;
            margin: 1.4rem 0;
        }
        .content-area .feature-box strong {
            color: #0b2a4a;
        }
        .insight-card {
            background: #faf5ed;
            border-radius: 12px;
            padding: 1.2rem 1.6rem;
            margin: 1.2rem 0;
            border: 1px solid #e9ddcf;
        }
        .insight-card i {
            color: #ff6a13;
            margin-right: 8px;
        }
        .search-section {
            background: #eef3f9;
            border-radius: 12px;
            padding: 1.6rem 2rem;
            margin: 2rem 0 1.6rem 0;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 1rem;
        }
        .search-section label {
            font-weight: 600;
            font-size: 1.05rem;
            color: #0f1a2e;
        }
        .search-section form {
            display: flex;
            flex: 1 1 280px;
            gap: 0.4rem;
        }
        .search-section input[type="text"] {
            flex: 1;
            padding: 0.7rem 1.2rem;
            border: 2px solid #cad5e0;
            border-radius: 50px;
            font-size: 0.95rem;
            outline: none;
            transition: border 0.2s;
        }
        .search-section input[type="text"]:focus {
            border-color: #0057b3;
        }
        .search-section button {
            background: #0057b3;
            color: #fff;
            border: none;
            padding: 0.7rem 1.8rem;
            border-radius: 50px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
            font-size: 0.95rem;
        }
        .search-section button:hover {
            background: #003d82;
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.6rem;
            margin: 2rem 0 1.2rem 0;
        }
        .feedback-card {
            background: #f8faff;
            border: 1px solid #e2ebf3;
            border-radius: 14px;
            padding: 1.4rem 1.8rem;
        }
        .feedback-card h3 {
            margin-top: 0;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .feedback-card form {
            display: flex;
            flex-direction: column;
            gap: 0.7rem;
            margin-top: 0.8rem;
        }
        .feedback-card input,
        .feedback-card textarea,
        .feedback-card select {
            padding: 0.6rem 1rem;
            border: 1.5px solid #d2deec;
            border-radius: 8px;
            font-size: 0.95rem;
            font-family: inherit;
            outline: none;
            transition: border 0.2s;
        }
        .feedback-card input:focus,
        .feedback-card textarea:focus,
        .feedback-card select:focus {
            border-color: #0057b3;
        }
        .feedback-card textarea {
            min-height: 80px;
            resize: vertical;
        }
        .feedback-card .btn-submit {
            background: #ff6a13;
            color: #fff;
            border: none;
            padding: 0.6rem 1.6rem;
            border-radius: 50px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
            align-self: flex-start;
        }
        .feedback-card .btn-submit:hover {
            background: #e05500;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.2rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 1.7rem;
            color: #ccd7e6;
            cursor: pointer;
            transition: color 0.15s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #ffb347;
        }
        .link-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem 1.2rem;
            padding: 0.8rem 0;
            margin: 1.2rem 0;
            border-top: 1px solid #e0e8f0;
            border-bottom: 1px solid #e0e8f0;
        }
        .link-cloud a {
            background: #eef3f9;
            padding: 0.2rem 1rem;
            border-radius: 30px;
            font-size: 0.9rem;
            color: #1f3a5a;
            border: 1px solid #d5e0ec;
            transition: all 0.2s;
        }
        .link-cloud a:hover {
            background: #ff6a13;
            color: #fff;
            border-color: #ff6a13;
            text-decoration: none;
        }
        .site-footer {
            background: #0b1729;
            color: #cbd8e8;
            padding: 2.2rem 0 1.2rem 0;
            margin-top: 2.8rem;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2rem;
        }
        .footer-inner h4 {
            color: #ffb347;
            margin-top: 0;
            font-size: 1.1rem;
        }
        .footer-inner a {
            color: #aac9ff;
        }
        .footer-inner a:hover {
            color: #ffb347;
        }
        friend-link {
            display: block;
            margin: 0.8rem 0;
            font-style: normal;
        }
        friend-link a {
            display: inline-block;
            margin-right: 1.2rem;
            padding: 0.2rem 0;
        }
        .copyright {
            border-top: 1px solid #1f3550;
            padding-top: 1.2rem;
            margin-top: 1.6rem;
            font-size: 0.88rem;
            text-align: center;
            color: #8aa1bb;
        }
        @media (max-width: 820px) {
            .feedback-grid {
                grid-template-columns: 1fr;
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
            .content-area {
                padding: 1.4rem 1.2rem;
            }
            h1 {
                font-size: 1.9rem;
            }
            h2 {
                font-size: 1.45rem;
            }
        }
        @media (max-width: 640px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 0.2rem;
                padding-top: 0.8rem;
                border-top: 1px solid rgba(255, 255, 255, 0.1);
                margin-top: 0.6rem;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 0.6rem 1rem;
                border-radius: 8px;
                width: 100%;
            }
            .header-inner {
                align-items: center;
            }
            .my-logo {
                font-size: 1.5rem;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 1.4rem;
            }
            .search-section {
                flex-direction: column;
                align-items: stretch;
                padding: 1.2rem 1.2rem;
            }
            .search-section form {
                flex-direction: column;
            }
            .search-section button {
                width: 100%;
            }
            .breadcrumb {
                font-size: 0.78rem;
                padding: 0.4rem 0.8rem;
            }
            .hero-figure {
                margin: 1rem 0;
            }
            .content-area {
                padding: 1rem 0.8rem;
                border-radius: 8px;
            }
            .feedback-card {
                padding: 1rem 1.2rem;
            }
            .link-cloud {
                gap: 0.4rem 0.8rem;
            }
            .link-cloud a {
                font-size: 0.8rem;
                padding: 0.15rem 0.8rem;
            }
        }
        @media (max-width: 420px) {
            html {
                font-size: 15px;
            }
            h1 {
                font-size: 1.6rem;
            }
            h2 {
                font-size: 1.25rem;
            }
            .container {
                padding: 0 0.7rem;
            }
            .content-area {
                padding: 0.8rem 0.6rem;
            }
        }
        ::-webkit-scrollbar {
            width: 7px;
            height: 7px;
        }
        ::-webkit-scrollbar-track {
            background: #e4eaf2;
        }
        ::-webkit-scrollbar-thumb {
            background: #7b9abc;
            border-radius: 10px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #2c5f8a;
        }
        @media print {
            .site-header,
            .site-footer,
            .search-section,
            .feedback-grid,
            .nav-toggle {
                display: none !important;
            }
            .content-area {
                box-shadow: none;
                border: 1px solid #ccc;
                padding: 1.2rem;
            }
            body {
                background: #fff;
                color: #000;
            }
        }