*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, sans-serif;
            background: #f4f7fa;
            color: #1a1e2b;
            line-height: 1.7;
            font-size: 16px;
            padding: 0 16px;
        }
        a {
            color: #004d73;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover {
            color: #e65c1e;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        .container {
            max-width: 1240px;
            margin: 0 auto;
            background: #ffffff;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.05);
            border-radius: 28px;
            padding: 24px 28px 32px;
            margin-top: 20px;
            margin-bottom: 40px;
        }
        .header-top {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            padding: 12px 0 16px;
            border-bottom: 2px solid #e8edf2;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #0a2e4a, #1b6b8f);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .my-logo i {
            -webkit-text-fill-color: #e65c1e;
            font-size: 1.8rem;
            background: none;
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 20px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: #1a1e2b;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: #eef3f8;
        }
        .nav-menu {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            list-style: none;
        }
        .nav-menu li a {
            display: block;
            padding: 8px 16px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.92rem;
            color: #1a2a3a;
            background: #f0f4f9;
            transition: all 0.2s ease;
        }
        .nav-menu li a:hover {
            background: #1b6b8f;
            color: #fff;
            text-decoration: none;
            transform: translateY(-1px);
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            padding: 14px 0 10px;
            font-size: 0.88rem;
            color: #5a6a7a;
            gap: 6px 12px;
            list-style: none;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 10px;
            color: #b0c0ce;
            font-weight: 700;
        }
        .breadcrumb a {
            color: #1b6b8f;
        }
        .breadcrumb .active {
            color: #2a3a4a;
            font-weight: 600;
        }
        h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            margin: 24px 0 16px;
            color: #0a1e2e;
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: 1.9rem;
            font-weight: 700;
            margin: 48px 0 16px;
            padding-bottom: 8px;
            border-bottom: 3px solid #e0e8f0;
            color: #0f2d42;
        }
        h3 {
            font-size: 1.4rem;
            font-weight: 600;
            margin: 32px 0 12px;
            color: #153d55;
        }
        h4 {
            font-size: 1.15rem;
            font-weight: 600;
            margin: 24px 0 10px;
            color: #1d4f6a;
        }
        p {
            margin-bottom: 18px;
            color: #2a3440;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 400;
            color: #2b4a5e;
            background: #f0f7fc;
            padding: 20px 24px;
            border-radius: 16px;
            border-left: 5px solid #1b6b8f;
        }
        .highlight {
            background: #fff3e0;
            padding: 2px 8px;
            border-radius: 6px;
            font-weight: 600;
        }
        .emoji-big {
            font-size: 1.6rem;
            vertical-align: middle;
        }
        .search-box {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin: 28px 0 20px;
            background: #f2f6fb;
            padding: 18px 22px;
            border-radius: 60px;
            align-items: center;
            border: 1px solid #dce4ee;
        }
        .search-box i {
            color: #5a7a8e;
            font-size: 1.2rem;
        }
        .search-box input {
            flex: 1;
            min-width: 160px;
            border: none;
            background: transparent;
            font-size: 1rem;
            padding: 8px 4px;
            outline: none;
            font-family: inherit;
        }
        .search-box button {
            background: #1b6b8f;
            border: none;
            color: #fff;
            padding: 10px 28px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .search-box button:hover {
            background: #e65c1e;
            transform: scale(1.02);
        }
        .feature-img {
            margin: 32px 0 24px;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.08);
        }
        .feature-img img {
            width: 100%;
            min-height: 220px;
            object-fit: cover;
            background: #dce4ee;
        }
        .img-caption {
            font-size: 0.85rem;
            color: #5a6a7a;
            text-align: center;
            padding: 10px 0 4px;
            font-style: italic;
        }
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
            margin: 28px 0;
        }
        .card {
            background: #f9fcff;
            border-radius: 18px;
            padding: 24px 20px;
            border: 1px solid #e4ebf3;
            transition: all 0.25s ease;
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 32px rgba(0, 60, 80, 0.10);
            border-color: #b8d0e0;
        }
        .card i {
            color: #1b6b8f;
            font-size: 2rem;
            margin-bottom: 12px;
        }
        .card h3 {
            margin-top: 0;
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            margin: 36px 0 20px;
        }
        .feedback-card {
            background: #f5faff;
            border-radius: 20px;
            padding: 24px 26px;
            border: 1px solid #dce8f2;
        }
        .feedback-card h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .feedback-card textarea,
        .feedback-card input {
            width: 100%;
            padding: 12px 16px;
            border-radius: 14px;
            border: 1px solid #cbd8e6;
            font-family: inherit;
            font-size: 0.95rem;
            background: #fff;
            margin-bottom: 12px;
            transition: border 0.2s;
        }
        .feedback-card textarea:focus,
        .feedback-card input:focus {
            border-color: #1b6b8f;
            outline: none;
        }
        .feedback-card textarea {
            min-height: 90px;
            resize: vertical;
        }
        .feedback-card button {
            background: #1b6b8f;
            color: #fff;
            border: none;
            padding: 10px 26px;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .feedback-card button:hover {
            background: #e65c1e;
        }
        .star-rating {
            display: flex;
            gap: 6px;
            font-size: 1.8rem;
            color: #d0dae6;
            cursor: pointer;
            margin-bottom: 12px;
        }
        .star-rating i.active {
            color: #f5b342;
        }
        .star-rating i:hover,
        .star-rating i.active~i {
            color: #f5b342;
        }
        friend-link {
            display: block;
            padding: 28px 0 16px;
            border-top: 2px solid #e4ebf3;
            margin-top: 32px;
        }
        .friend-links-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 14px 24px;
            padding: 12px 0 8px;
        }
        .friend-links-grid a {
            font-weight: 500;
            padding: 4px 4px;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .friend-links-grid a:hover {
            background: #eef3f9;
        }
        .footer {
            margin-top: 36px;
            padding-top: 24px;
            border-top: 2px solid #e4ebf3;
            font-size: 0.9rem;
            color: #4a5a6a;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 16px;
            align-items: center;
        }
        .footer .copyright {
            font-weight: 500;
        }
        @media (max-width: 900px) {
            .feedback-grid {
                grid-template-columns: 1fr;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .container {
                padding: 16px 18px 24px;
            }
        }
        @media (max-width: 720px) {
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                flex-direction: column;
                width: 100%;
                gap: 6px;
                padding: 16px 0 8px;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-wrapper {
                flex-wrap: wrap;
            }
            .header-top {
                flex-wrap: wrap;
            }
            .my-logo {
                font-size: 1.5rem;
            }
            .search-box {
                border-radius: 28px;
                padding: 14px 18px;
            }
            .search-box button {
                padding: 8px 20px;
                font-size: 0.85rem;
            }
        }
        @media (max-width: 480px) {
            body {
                padding: 0 8px;
            }
            .container {
                padding: 12px 12px 20px;
                border-radius: 18px;
            }
            h1 {
                font-size: 1.6rem;
            }
            .card-grid {
                grid-template-columns: 1fr;
            }
        }
        .schema-hidden {
            display: none;
        }
        html {
            scroll-behavior: smooth;
        }
        .mt-1 {
            margin-top: 16px;
        }
        .mb-1 {
            margin-bottom: 16px;
        }
        .text-small {
            font-size: 0.9rem;
            color: #5a6a7a;
        }
        .flex-center {
            display: flex;
            align-items: center;
            gap: 8px;
        }