*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', 'Roboto', system-ui, -apple-system, sans-serif;
            background: #f8f6f2;
            color: #1e2a3a;
            line-height: 1.7;
            padding: 0 16px;
        }
        a {
            color: #c84b31;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover,
        a:focus {
            color: #a0331f;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.25;
            color: #0f1a2c;
            margin-top: 1.8rem;
            margin-bottom: 0.6rem;
        }
        h1 {
            font-size: 2.4rem;
            border-bottom: 4px solid #c84b31;
            display: inline-block;
            padding-bottom: 0.3rem;
        }
        h2 {
            font-size: 1.8rem;
            border-left: 5px solid #c84b31;
            padding-left: 0.8rem;
            margin-top: 2.4rem;
        }
        h3 {
            font-size: 1.4rem;
            color: #2a3a4a;
        }
        h4 {
            font-size: 1.15rem;
            color: #3c4e5e;
            font-weight: 600;
        }
        p {
            margin-bottom: 1rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 12px;
        }
        .site-header {
            background: linear-gradient(135deg, #0f1a2c 0%, #1e2a3a 100%);
            padding: 12px 0;
            border-radius: 0 0 20px 20px;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
            position: relative;
            z-index: 100;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 800;
            color: #f5e8d9;
            letter-spacing: -0.5px;
            text-shadow: 0 2px 8px rgba(200, 75, 49, 0.3);
            transition: transform 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .my-logo:hover {
            transform: scale(1.02);
            color: #f5e8d9;
            text-decoration: none;
        }
        .my-logo i {
            color: #c84b31;
            font-size: 2.2rem;
        }
        .my-logo span {
            color: #c84b31;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid #c84b31;
            color: #f5e8d9;
            font-size: 1.6rem;
            padding: 6px 14px;
            border-radius: 8px;
            cursor: pointer;
            transition: background 0.3s;
        }
        .nav-toggle:hover {
            background: rgba(200, 75, 49, 0.2);
        }
        .main-nav {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 6px 16px;
        }
        .main-nav a {
            color: #ddd;
            font-weight: 500;
            padding: 4px 0;
            border-bottom: 2px solid transparent;
            transition: border-color 0.3s, color 0.3s;
            font-size: 0.95rem;
        }
        .main-nav a:hover {
            color: #c84b31;
            border-bottom-color: #c84b31;
            text-decoration: none;
        }
        .main-nav a i {
            margin-right: 4px;
            font-size: 0.85rem;
        }
        .breadcrumb {
            background: #ece8e0;
            padding: 8px 16px;
            border-radius: 30px;
            font-size: 0.85rem;
            margin: 16px 0 8px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 4px 8px;
            color: #5a5a5a;
        }
        .breadcrumb a {
            color: #c84b31;
        }
        .breadcrumb i {
            font-size: 0.7rem;
            color: #888;
        }
        .breadcrumb .current {
            color: #2a3a4a;
            font-weight: 600;
        }
        .search-section {
            background: #fff;
            border-radius: 20px;
            padding: 28px 24px;
            margin: 24px 0;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
            border: 1px solid #e8e2d8;
        }
        .search-form {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            max-width: 680px;
            margin: 12px auto 0;
        }
        .search-form input {
            flex: 1;
            min-width: 180px;
            padding: 12px 18px;
            border: 2px solid #ddd;
            border-radius: 30px;
            font-size: 1rem;
            outline: none;
            transition: border-color 0.3s;
            background: #faf8f4;
        }
        .search-form input:focus {
            border-color: #c84b31;
        }
        .search-form button {
            background: #c84b31;
            color: #fff;
            border: none;
            padding: 12px 28px;
            border-radius: 30px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s, transform 0.2s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .search-form button:hover {
            background: #a0331f;
            transform: translateY(-2px);
        }
        .interaction-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin: 28px 0;
        }
        .interaction-card {
            background: #fff;
            border-radius: 20px;
            padding: 24px 22px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
            border: 1px solid #e8e2d8;
        }
        .interaction-card h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .interaction-card form {
            margin-top: 12px;
        }
        .interaction-card input,
        .interaction-card textarea,
        .interaction-card select {
            width: 100%;
            padding: 10px 14px;
            border: 2px solid #ddd;
            border-radius: 12px;
            font-size: 0.95rem;
            margin-bottom: 10px;
            background: #faf8f4;
            transition: border-color 0.3s;
            font-family: inherit;
        }
        .interaction-card input:focus,
        .interaction-card textarea:focus,
        .interaction-card select:focus {
            border-color: #c84b31;
            outline: none;
        }
        .interaction-card textarea {
            resize: vertical;
            min-height: 80px;
        }
        .interaction-card .btn-submit {
            background: #0f1a2c;
            color: #fff;
            border: none;
            padding: 10px 24px;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s, transform 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .interaction-card .btn-submit:hover {
            background: #1e2a3a;
            transform: translateY(-2px);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 4px;
            margin-bottom: 10px;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating input:checked~label,
        .star-rating label:hover,
        .star-rating label:hover~label {
            color: #f5a623;
        }
        .content-area {
            background: #fff;
            border-radius: 20px;
            padding: 32px 28px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
            border: 1px solid #e8e2d8;
            margin: 20px 0;
        }
        .content-area img {
            border-radius: 16px;
            margin: 24px 0;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.08);
        }
        .feature-box {
            background: #f8f4ee;
            border-left: 5px solid #c84b31;
            padding: 18px 22px;
            border-radius: 0 16px 16px 0;
            margin: 20px 0;
        }
        .feature-box p:last-child {
            margin-bottom: 0;
        }
        .last-updated {
            display: inline-block;
            background: #ece8e0;
            padding: 4px 16px;
            border-radius: 30px;
            font-size: 0.85rem;
            color: #5a5a5a;
            margin-bottom: 16px;
        }
        .last-updated i {
            margin-right: 6px;
            color: #c84b31;
        }
        .site-footer {
            background: #0f1a2c;
            color: #ccc;
            padding: 32px 20px 20px;
            border-radius: 20px 20px 0 0;
            margin-top: 36px;
        }
        .site-footer .container {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 28px;
        }
        .site-footer h4 {
            color: #f5e8d9;
            margin-top: 0;
            font-size: 1.1rem;
        }
        .site-footer a {
            color: #c84b31;
        }
        .site-footer a:hover {
            color: #e56a4a;
        }
        .friend-link {
            display: block;
            padding: 10px 0;
            border-top: 1px solid #2a3a4a;
            margin-top: 20px;
            grid-column: 1 / -1;
        }
        .friend-link a {
            display: inline-block;
            margin: 4px 12px 4px 0;
            font-weight: 500;
        }
        .copyright {
            grid-column: 1 / -1;
            text-align: center;
            font-size: 0.85rem;
            color: #888;
            padding-top: 16px;
            border-top: 1px solid #2a3a4a;
            margin-top: 8px;
        }
        .copyright strong {
            color: #ddd;
        }
        @media (max-width: 820px) {
            .interaction-grid {
                grid-template-columns: 1fr;
            }
            .site-footer .container {
                grid-template-columns: 1fr 1fr;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .content-area {
                padding: 20px 16px;
            }
            .header-inner {
                flex-wrap: wrap;
            }
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                padding-top: 12px;
                border-top: 1px solid rgba(255, 255, 255, 0.1);
                margin-top: 8px;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 10px 8px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            }
        }
        @media (max-width: 540px) {
            body {
                padding: 0 8px;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                width: 100%;
                justify-content: center;
            }
            .site-footer .container {
                grid-template-columns: 1fr;
            }
            .breadcrumb {
                font-size: 0.75rem;
                padding: 6px 12px;
            }
            h1 {
                font-size: 1.5rem;
            }
            h2 {
                font-size: 1.3rem;
            }
            .my-logo {
                font-size: 1.5rem;
            }
            .my-logo i {
                font-size: 1.6rem;
            }
            .feature-box {
                padding: 14px 16px;
            }
        }
        .skip-link {
            position: absolute;
            top: -100px;
            left: 16px;
            background: #c84b31;
            color: #fff;
            padding: 8px 20px;
            border-radius: 0 0 8px 8px;
            z-index: 1000;
            font-weight: 600;
        }
        .skip-link:focus {
            top: 0;
        }
        .highlight {
            background: linear-gradient(120deg, #f5e8d9 0%, #f5e8d9 40%, transparent 80%);
            padding: 0 8px;
            border-radius: 4px;
            font-weight: 600;
        }
        .emoji-lg {
            font-size: 1.4rem;
        }
        .btn-top {
            position: fixed;
            bottom: 24px;
            right: 24px;
            background: #c84b31;
            color: #fff;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            box-shadow: 0 4px 16px rgba(200, 75, 49, 0.3);
            transition: transform 0.3s, opacity 0.3s;
            opacity: 0.8;
            z-index: 90;
            border: none;
            cursor: pointer;
        }
        .btn-top:hover {
            transform: translateY(-4px);
            opacity: 1;
            color: #fff;
            text-decoration: none;
        }