* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            background: #f4f7fb;
            color: #1a2634;
            line-height: 1.7;
            padding: 0 16px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            background: #ffffff;
            box-shadow: 0 0 40px rgba(0, 0, 0, 0.05);
            border-radius: 24px;
            padding: 24px 28px;
            margin-top: 20px;
            margin-bottom: 40px;
        }
        a {
            color: #0066cc;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #004080;
            text-decoration: underline;
        }
        .header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding-bottom: 16px;
            border-bottom: 2px solid #e8edf2;
            margin-bottom: 16px;
            position: relative;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 800;
            background: linear-gradient(135deg, #1e3c72, #2a5298);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
        }
        .my-logo a {
            -webkit-text-fill-color: transparent;
            background: linear-gradient(135deg, #1e3c72, #2a5298);
            -webkit-background-clip: text;
            background-clip: text;
        }
        .my-logo a:hover {
            text-decoration: none;
            opacity: 0.85;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid #1e3c72;
            color: #1e3c72;
            font-size: 1.6rem;
            padding: 4px 12px;
            border-radius: 8px;
            cursor: pointer;
            transition: 0.2s;
        }
        .nav-toggle:hover {
            background: #1e3c72;
            color: #fff;
        }
        .navbar {
            display: flex;
            flex-wrap: wrap;
            gap: 6px 18px;
            align-items: center;
        }
        .navbar a {
            font-weight: 500;
            padding: 6px 0;
            border-bottom: 2px solid transparent;
            transition: 0.2s;
            color: #1a2634;
            font-size: 0.95rem;
        }
        .navbar a:hover {
            border-bottom-color: #2a5298;
            color: #2a5298;
            text-decoration: none;
        }
        .navbar a i {
            margin-right: 6px;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            padding: 8px 0 12px 0;
            font-size: 0.85rem;
            color: #5a6877;
            border-bottom: 1px solid #eef2f6;
            margin-bottom: 20px;
        }
        .breadcrumb li {
            display: inline;
        }
        .breadcrumb li+li:before {
            content: "/";
            padding: 0 10px;
            color: #b0bcc9;
        }
        .breadcrumb a {
            color: #2a5298;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb .active {
            color: #5a6877;
        }
        h1 {
            font-size: 2.2rem;
            font-weight: 800;
            color: #0b1a2e;
            margin: 0.6rem 0 1.2rem 0;
            line-height: 1.25;
        }
        h2 {
            font-size: 1.7rem;
            font-weight: 700;
            color: #0f2640;
            margin: 2.4rem 0 1rem 0;
            padding-bottom: 6px;
            border-bottom: 3px solid #e0e7ef;
        }
        h3 {
            font-size: 1.3rem;
            font-weight: 600;
            color: #1a334d;
            margin: 1.8rem 0 0.8rem 0;
        }
        h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: #2a3f57;
            margin: 1.2rem 0 0.5rem 0;
        }
        p {
            margin-bottom: 1.1rem;
            color: #2c3a47;
            font-size: 1rem;
        }
        .content-img {
            max-width: 100%;
            height: auto;
            border-radius: 20px;
            margin: 24px 0;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
            display: block;
            width: 100%;
            object-fit: cover;
            aspect-ratio: 16/9;
            background: #dce3ec;
        }
        .highlight {
            background: #f0f5ff;
            padding: 0.2rem 0.6rem;
            border-radius: 6px;
            font-weight: 600;
        }
        .emoji-big {
            font-size: 1.4rem;
            margin-right: 6px;
        }
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 20px;
            margin: 28px 0;
        }
        .feature-card {
            background: #f8fafd;
            padding: 20px 18px;
            border-radius: 18px;
            border: 1px solid #e8edf4;
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.06);
        }
        .feature-card i {
            font-size: 2rem;
            color: #2a5298;
            margin-bottom: 12px;
        }
        .feature-card h4 {
            margin-top: 0;
        }
        .search-box {
            background: #f0f4fa;
            border-radius: 60px;
            padding: 10px 20px;
            display: flex;
            align-items: center;
            max-width: 520px;
            margin: 28px 0;
            border: 1px solid #dce3ec;
        }
        .search-box input {
            flex: 1;
            border: none;
            background: transparent;
            padding: 10px 12px;
            font-size: 1rem;
            outline: none;
        }
        .search-box button {
            background: #1e3c72;
            border: none;
            color: #fff;
            padding: 10px 22px;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
            font-size: 0.95rem;
        }
        .search-box button:hover {
            background: #2a5298;
        }
        .feedback-section {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            margin: 40px 0 28px 0;
            background: #f8fafd;
            padding: 28px 24px;
            border-radius: 24px;
            border: 1px solid #e8edf4;
        }
        .feedback-section h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .feedback-form textarea,
        .feedback-form input,
        .rating-form select,
        .rating-form input {
            width: 100%;
            padding: 12px 16px;
            border-radius: 16px;
            border: 1px solid #d0d9e4;
            font-size: 1rem;
            margin-bottom: 12px;
            background: #ffffff;
            transition: border 0.2s;
            font-family: inherit;
        }
        .feedback-form textarea:focus,
        .feedback-form input:focus,
        .rating-form select:focus {
            border-color: #2a5298;
            outline: none;
        }
        .feedback-form textarea {
            min-height: 100px;
            resize: vertical;
        }
        .btn {
            background: #1e3c72;
            color: #ffffff;
            border: none;
            padding: 12px 28px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn:hover {
            background: #2a5298;
            transform: scale(1.02);
        }
        .btn-outline {
            background: transparent;
            color: #1e3c72;
            border: 2px solid #1e3c72;
        }
        .btn-outline:hover {
            background: #1e3c72;
            color: #fff;
        }
        .star-rating {
            display: flex;
            gap: 4px;
            font-size: 1.8rem;
            color: #ffb83b;
            margin-bottom: 10px;
        }
        .star-rating i {
            cursor: pointer;
            transition: 0.15s;
        }
        .star-rating i:hover {
            transform: scale(1.2);
        }
        .link-list {
            background: #f4f8fe;
            padding: 20px 24px;
            border-radius: 20px;
            margin: 28px 0;
            border-left: 5px solid #2a5298;
        }
        .link-list ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 6px 20px;
        }
        .link-list li {
            padding: 4px 0;
        }
        .link-list a {
            font-weight: 500;
        }
        friend-link {
            display: block;
            background: #f0f4fa;
            padding: 18px 22px;
            border-radius: 18px;
            margin: 32px 0 16px 0;
            font-size: 0.95rem;
            border: 1px solid #dce3ec;
        }
        friend-link a {
            display: inline-block;
            margin: 4px 16px 4px 0;
            font-weight: 500;
        }
        .footer {
            border-top: 2px solid #e8edf2;
            padding-top: 24px;
            margin-top: 32px;
            text-align: center;
            font-size: 0.9rem;
            color: #5a6877;
        }
        .footer .copyright {
            margin-top: 12px;
            font-weight: 400;
        }
        @media (max-width: 768px) {
            .container {
                padding: 16px 14px;
                border-radius: 16px;
            }
            h1 {
                font-size: 1.6rem;
            }
            h2 {
                font-size: 1.3rem;
            }
            h3 {
                font-size: 1.1rem;
            }
            .header {
                flex-wrap: wrap;
            }
            .nav-toggle {
                display: block;
            }
            .navbar {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
                padding: 16px 0 8px 0;
                border-top: 1px solid #e0e7ef;
                margin-top: 12px;
            }
            .navbar.open {
                display: flex;
            }
            .navbar a {
                padding: 8px 0;
                width: 100%;
                border-bottom: 1px solid #eef2f6;
            }
            .feedback-section {
                grid-template-columns: 1fr;
                padding: 20px 16px;
            }
            .link-list ul {
                grid-template-columns: 1fr;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .search-box {
                flex-wrap: wrap;
                border-radius: 30px;
                padding: 8px 14px;
            }
            .search-box input {
                width: 100%;
                margin-bottom: 8px;
            }
            .search-box button {
                width: 100%;
                justify-content: center;
            }
            .breadcrumb {
                font-size: 0.75rem;
            }
            .breadcrumb li+li:before {
                padding: 0 6px;
            }
            .my-logo {
                font-size: 1.3rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 12px 10px;
            }
            h1 {
                font-size: 1.4rem;
            }
            .star-rating {
                font-size: 1.5rem;
            }
        }
        .schema-hidden {
            display: none;
        }
        html {
            scroll-behavior: smooth;
        }
        .mt-2 {
            margin-top: 1.2rem;
        }
        .mb-1 {
            margin-bottom: 0.6rem;
        }
        .inline-icon {
            margin-right: 8px;
        }
        .badge {
            background: #e0e9f5;
            padding: 2px 14px;
            border-radius: 40px;
            font-size: 0.8rem;
            font-weight: 600;
            color: #1e3c72;
        }