*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            line-height: 1.7;
            color: #1e1e2a;
            background: #fafafc;
            padding: 0;
            margin: 0;
        }
        .container {
            max-width: 1140px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #2b3a67 0%, #1d2a4a 100%);
            color: #fff;
            padding: 16px 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: 1.8rem;
            font-weight: 700;
            letter-spacing: -0.5px;
            color: #fff;
            text-decoration: none;
            transition: opacity 0.2s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .my-logo:hover {
            opacity: 0.85;
        }
        .my-logo .logo-emoji {
            font-size: 2rem;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .main-nav a {
            color: rgba(255, 255, 255, 0.88);
            text-decoration: none;
            font-size: 0.95rem;
            font-weight: 500;
            padding: 8px 16px;
            border-radius: 40px;
            transition: background 0.2s, color 0.2s;
        }
        .main-nav a:hover,
        .main-nav a.active {
            background: rgba(255, 255, 255, 0.18);
            color: #fff;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.7rem;
            color: #fff;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.12);
        }
        .breadcrumb {
            background: #f0f0f5;
            padding: 12px 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #e2e2ec;
        }
        .breadcrumb .container {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            align-items: center;
        }
        .breadcrumb a {
            color: #2b3a67;
            text-decoration: none;
            font-weight: 500;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb span {
            color: #6b6b80;
        }
        .breadcrumb .sep {
            color: #9a9ab0;
            margin: 0 4px;
        }
        main {
            padding: 40px 0 60px;
        }
        h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            color: #1d2a4a;
            margin-bottom: 16px;
            letter-spacing: -1px;
        }
        h2 {
            font-size: 2rem;
            font-weight: 700;
            color: #2b3a67;
            margin-top: 56px;
            margin-bottom: 18px;
            border-bottom: 3px solid #e8e8f0;
            padding-bottom: 10px;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 600;
            color: #1e2a4a;
            margin-top: 36px;
            margin-bottom: 12px;
        }
        h4 {
            font-size: 1.2rem;
            font-weight: 600;
            color: #2b3a67;
            margin-top: 24px;
            margin-bottom: 8px;
        }
        p {
            margin-bottom: 18px;
            color: #2c2c3a;
        }
        .lead {
            font-size: 1.2rem;
            color: #3d3d50;
            font-weight: 500;
            line-height: 1.8;
        }
        a {
            color: #3b5a9e;
            text-decoration: underline;
            text-underline-offset: 2px;
            transition: color 0.2s;
        }
        a:hover {
            color: #1d2a4a;
        }
        .feature-image {
            width: 100%;
            border-radius: 20px;
            margin: 32px 0 28px;
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
            display: block;
            height: auto;
            max-height: 520px;
            object-fit: cover;
        }
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 28px;
            margin: 32px 0;
        }
        .card {
            background: #fff;
            border-radius: 20px;
            padding: 28px 24px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
            border: 1px solid #ececf2;
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 36px rgba(0, 0, 0, 0.07);
        }
        .card h3 {
            margin-top: 0;
        }
        .card i {
            color: #3b5a9e;
            margin-right: 8px;
        }
        ul,
        ol {
            margin: 16px 0 24px 24px;
            color: #2c2c3a;
        }
        li {
            margin-bottom: 8px;
        }
        .highlight-box {
            background: #f4f6fc;
            border-left: 6px solid #2b3a67;
            padding: 24px 28px;
            border-radius: 12px;
            margin: 32px 0;
        }
        .highlight-box p:last-child {
            margin-bottom: 0;
        }
        .search-form {
            display: flex;
            gap: 12px;
            margin: 32px 0;
            flex-wrap: wrap;
            max-width: 640px;
        }
        .search-form input {
            flex: 1;
            min-width: 180px;
            padding: 14px 20px;
            border: 2px solid #dcdce6;
            border-radius: 60px;
            font-size: 1rem;
            font-family: inherit;
            outline: none;
            transition: border-color 0.2s;
        }
        .search-form input:focus {
            border-color: #2b3a67;
        }
        .search-form button {
            padding: 14px 32px;
            background: #2b3a67;
            color: #fff;
            border: none;
            border-radius: 60px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
            display: flex;
            align-items: center;
            gap: 8px;
            font-family: inherit;
        }
        .search-form button:hover {
            background: #1d2a4a;
        }
        .feedback-section {
            background: #fff;
            border-radius: 24px;
            padding: 36px 32px;
            margin: 48px 0;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
            border: 1px solid #ececf2;
        }
        .feedback-section h2 {
            margin-top: 0;
            border-bottom: none;
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 6px;
            color: #1e2a4a;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid #dcdce6;
            border-radius: 12px;
            font-size: 1rem;
            font-family: inherit;
            transition: border-color 0.2s;
            background: #fafafc;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: #2b3a67;
            outline: none;
            background: #fff;
        }
        .form-group textarea {
            min-height: 110px;
            resize: vertical;
        }
        .form-row {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }
        .form-row .form-group {
            flex: 1;
            min-width: 160px;
        }
        .btn-submit {
            padding: 14px 40px;
            background: #2b3a67;
            color: #fff;
            border: none;
            border-radius: 60px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            font-family: inherit;
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .btn-submit:hover {
            background: #1d2a4a;
            transform: scale(1.01);
        }
        .star-rating {
            display: flex;
            gap: 6px;
            font-size: 1.6rem;
            color: #dcdce6;
            cursor: pointer;
            direction: rtl;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            cursor: pointer;
            transition: color 0.15s;
            color: #dcdce6;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f5b342;
        }
        friend-link {
            display: block;
            margin: 24px 0 8px;
            font-weight: 500;
            color: #1e2a4a;
        }
        friend-link a {
            display: inline-block;
            margin: 4px 16px 4px 0;
        }
        .site-footer {
            background: #1d2a4a;
            color: rgba(255, 255, 255, 0.85);
            padding: 40px 0 32px;
            margin-top: 40px;
        }
        .site-footer a {
            color: #b0c4f0;
            text-decoration: none;
        }
        .site-footer a:hover {
            color: #fff;
            text-decoration: underline;
        }
        .footer-inner {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 24px;
        }
        .footer-copy {
            font-size: 0.9rem;
            opacity: 0.8;
            margin-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            text-align: center;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                margin-top: 16px;
                background: rgba(255, 255, 255, 0.05);
                border-radius: 16px;
                padding: 8px 0;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 12px 20px;
                width: 100%;
                border-radius: 0;
            }
            .header-inner {
                align-items: center;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            h3 {
                font-size: 1.3rem;
            }
            .container {
                padding: 0 16px;
            }
            .feedback-section {
                padding: 24px 16px;
            }
            .search-form button {
                width: 100%;
                justify-content: center;
            }
            .star-rating {
                font-size: 1.4rem;
            }
        }
        @media (max-width: 480px) {
            .my-logo {
                font-size: 1.3rem;
            }
            .my-logo .logo-emoji {
                font-size: 1.5rem;
            }
            .card {
                padding: 20px 16px;
            }
            .highlight-box {
                padding: 16px 18px;
            }
        }
        .anchor-offset {
            scroll-margin-top: 100px;
        }
        .last-updated {
            font-size: 0.9rem;
            color: #7a7a8e;
            margin-bottom: 24px;
            display: block;
            font-weight: 500;
        }
        .emoji-big {
            font-size: 2.4rem;
            line-height: 1;
        }
        .tag {
            display: inline-block;
            background: #eef1f9;
            color: #2b3a67;
            padding: 4px 14px;
            border-radius: 40px;
            font-size: 0.85rem;
            font-weight: 500;
            margin: 3px 4px;
        }
        .divider {
            height: 2px;
            background: linear-gradient(to right, transparent, #dcdce6, transparent);
            margin: 48px 0;
        }