* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: #f5f7fa;
            color: #1a1a2e;
            line-height: 1.8;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            color: #1e6f9f;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover,
        a:focus {
            color: #0d3b5e;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .site-header {
            background: linear-gradient(135deg, #0f2027 0%, #203a43 50%, #2c5364 100%);
            color: #fff;
            padding: 1rem 2rem;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }
        .header-inner {
            max-width: 1280px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.8rem;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            letter-spacing: 1px;
            background: linear-gradient(to right, #f7971e, #ffd200);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: none;
            transition: transform 0.3s ease;
            display: inline-block;
        }
        .my-logo:hover {
            transform: scale(1.04);
            text-decoration: none;
        }
        .my-logo small {
            font-size: 0.9rem;
            font-weight: 400;
            -webkit-text-fill-color: rgba(255, 255, 255, 0.7);
            color: rgba(255, 255, 255, 0.7);
            letter-spacing: 0.5px;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 0.3rem;
            flex-wrap: wrap;
        }
        .main-nav a {
            color: #eef5f9;
            padding: 0.5rem 1rem;
            border-radius: 40px;
            font-size: 0.92rem;
            font-weight: 500;
            transition: all 0.25s ease;
            white-space: nowrap;
        }
        .main-nav a:hover {
            background: rgba(255, 255, 255, 0.15);
            color: #ffd966;
            text-decoration: none;
        }
        .main-nav a.active {
            background: rgba(255, 215, 0, 0.2);
            color: #ffd966;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 2rem;
            cursor: pointer;
            padding: 0.2rem 0.5rem;
            transition: opacity 0.2s;
        }
        .hamburger:hover {
            opacity: 0.8;
        }
        .breadcrumb-wrap {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0.8rem 2rem 0.2rem;
            font-size: 0.88rem;
            color: #5a6a7a;
        }
        .breadcrumb-wrap a {
            color: #1e6f9f;
        }
        .breadcrumb-wrap span {
            color: #2c3e50;
            font-weight: 500;
        }
        .page-wrapper {
            max-width: 1280px;
            margin: 0 auto;
            padding: 2rem;
            flex: 1;
            display: grid;
            grid-template-columns: 1fr;
            gap: 2.5rem;
        }
        .content-primary {
            background: #fff;
            border-radius: 24px;
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.05);
            padding: 2.5rem 3rem;
        }
        .content-primary h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 1rem;
            color: #0f2027;
            letter-spacing: -0.5px;
        }
        .content-primary h1 .highlight {
            background: linear-gradient(145deg, #f7971e, #ffd200);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .content-primary h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-top: 3rem;
            margin-bottom: 1rem;
            color: #1a3a4a;
            border-left: 6px solid #f7971e;
            padding-left: 1.2rem;
        }
        .content-primary h3 {
            font-size: 1.5rem;
            font-weight: 600;
            margin-top: 2.2rem;
            margin-bottom: 0.8rem;
            color: #2c5364;
        }
        .content-primary h4 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-top: 1.8rem;
            margin-bottom: 0.5rem;
            color: #3a6b7c;
        }
        .content-primary p {
            margin-bottom: 1.2rem;
            font-size: 1.05rem;
            color: #2d3e4f;
        }
        .content-primary ul,
        .content-primary ol {
            margin: 1rem 0 1.5rem 1.8rem;
        }
        .content-primary li {
            margin-bottom: 0.5rem;
            font-size: 1.02rem;
        }
        .content-primary .feature-box {
            background: #f0f6fb;
            border-radius: 16px;
            padding: 1.8rem 2rem;
            margin: 1.8rem 0;
            border-left: 5px solid #f7971e;
        }
        .content-primary .feature-box strong {
            color: #1a3a4a;
        }
        .content-primary .emoji-big {
            font-size: 1.8rem;
            margin-right: 0.3rem;
        }
        .last-updated {
            display: inline-block;
            background: #eef3f7;
            padding: 0.3rem 1.2rem;
            border-radius: 40px;
            font-size: 0.9rem;
            color: #3a6b7c;
            margin-bottom: 1.5rem;
        }
        .featured-image-wrap {
            margin: 2.5rem 0;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
            background: #eef3f7;
        }
        .featured-image-wrap img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }
        .featured-image-wrap figcaption {
            padding: 0.8rem 1.2rem;
            font-size: 0.92rem;
            color: #4a6a7a;
            background: #f8fafc;
            font-style: italic;
        }
        .search-section {
            background: #f8fafc;
            border-radius: 20px;
            padding: 1.5rem 2rem;
            margin: 2rem 0;
            border: 1px solid #e2e8f0;
        }
        .search-section form {
            display: flex;
            gap: 0.8rem;
            flex-wrap: wrap;
            align-items: center;
        }
        .search-section input[type="text"] {
            flex: 1 1 240px;
            padding: 0.8rem 1.2rem;
            border: 2px solid #d0dce8;
            border-radius: 50px;
            font-size: 1rem;
            outline: none;
            transition: border 0.3s;
        }
        .search-section input[type="text"]:focus {
            border-color: #f7971e;
        }
        .search-section button {
            background: #1e6f9f;
            color: #fff;
            border: none;
            padding: 0.8rem 2rem;
            border-radius: 50px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s, transform 0.2s;
        }
        .search-section button:hover {
            background: #0d4b6e;
            transform: translateY(-2px);
        }
        .interaction-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            margin: 2.5rem 0;
        }
        .interaction-card {
            background: #f8fafc;
            border-radius: 20px;
            padding: 1.8rem 2rem;
            border: 1px solid #e2e8f0;
        }
        .interaction-card h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .interaction-card form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            margin-top: 1rem;
        }
        .interaction-card input,
        .interaction-card textarea,
        .interaction-card select {
            padding: 0.7rem 1rem;
            border: 2px solid #d0dce8;
            border-radius: 12px;
            font-size: 1rem;
            outline: none;
            transition: border 0.3s;
            font-family: inherit;
        }
        .interaction-card input:focus,
        .interaction-card textarea:focus,
        .interaction-card select:focus {
            border-color: #f7971e;
        }
        .interaction-card textarea {
            min-height: 100px;
            resize: vertical;
        }
        .interaction-card .btn-submit {
            background: #f7971e;
            color: #fff;
            border: none;
            padding: 0.8rem 1.8rem;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.3s, transform 0.2s;
            align-self: flex-start;
        }
        .interaction-card .btn-submit:hover {
            background: #d97d0a;
            transform: translateY(-2px);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            gap: 0.3rem;
            justify-content: flex-end;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 2rem;
            color: #ccc;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating input:checked~label {
            color: #f5b342;
        }
        .star-rating label:hover,
        .star-rating label:hover~label {
            color: #f5b342;
        }
        .inline-links-list {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem 1.2rem;
            margin: 1.2rem 0;
            padding: 0;
            list-style: none;
        }
        .inline-links-list li a {
            background: #eef3f7;
            padding: 0.3rem 1.2rem;
            border-radius: 40px;
            font-size: 0.95rem;
            color: #1e6f9f;
            transition: all 0.25s;
            display: inline-block;
        }
        .inline-links-list li a:hover {
            background: #1e6f9f;
            color: #fff;
            text-decoration: none;
        }
        .site-footer {
            background: #0f2027;
            color: #dce4ec;
            padding: 3rem 2rem 1.5rem;
            margin-top: 3rem;
        }
        .footer-inner {
            max-width: 1280px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2.5rem;
        }
        .footer-inner h4 {
            color: #ffd966;
            margin-bottom: 1rem;
            font-size: 1.2rem;
        }
        .footer-inner a {
            color: #b0cbd9;
        }
        .footer-inner a:hover {
            color: #ffd966;
        }
        .footer-inner ul {
            list-style: none;
            padding: 0;
        }
        .footer-inner li {
            margin-bottom: 0.5rem;
        }
        friend-link {
            display: block;
            margin-top: 2rem;
            padding-top: 1.5rem;
            border-top: 1px solid #2a4a5a;
            font-size: 0.95rem;
        }
        friend-link a {
            color: #8bb7d0;
            margin: 0 0.5rem;
        }
        friend-link a:hover {
            color: #ffd966;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            font-size: 0.9rem;
            color: #7a9aaa;
            border-top: 1px solid #1e3a4a;
            margin-top: 2rem;
        }
        @media (max-width: 1024px) {
            .content-primary {
                padding: 2rem 1.8rem;
            }
            .content-primary h1 {
                font-size: 2.2rem;
            }
            .interaction-grid {
                grid-template-columns: 1fr;
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .site-header {
                padding: 0.8rem 1.2rem;
            }
            .header-inner {
                gap: 0.5rem;
            }
            .my-logo {
                font-size: 1.5rem;
            }
            .main-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                background: rgba(15, 32, 39, 0.98);
                padding: 1rem 0;
                border-radius: 16px;
                margin-top: 0.5rem;
                gap: 0.2rem;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 0.6rem 1.2rem;
                width: 100%;
                text-align: center;
            }
            .hamburger {
                display: block;
            }
            .page-wrapper {
                padding: 1rem;
            }
            .content-primary {
                padding: 1.5rem 1.2rem;
                border-radius: 16px;
            }
            .content-primary h1 {
                font-size: 1.8rem;
            }
            .content-primary h2 {
                font-size: 1.5rem;
                padding-left: 0.8rem;
            }
            .content-primary h3 {
                font-size: 1.25rem;
            }
            .content-primary p {
                font-size: 0.98rem;
            }
            .search-section form {
                flex-direction: column;
            }
            .search-section input[type="text"] {
                width: 100%;
            }
            .search-section button {
                width: 100%;
            }
            .interaction-grid {
                grid-template-columns: 1fr;
                gap: 1.2rem;
            }
            .interaction-card {
                padding: 1.2rem;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .breadcrumb-wrap {
                padding: 0.5rem 1rem 0.2rem;
                font-size: 0.8rem;
            }
            .inline-links-list {
                gap: 0.4rem 0.8rem;
            }
            .inline-links-list li a {
                font-size: 0.85rem;
                padding: 0.2rem 0.9rem;
            }
        }
        @media (max-width: 480px) {
            .content-primary h1 {
                font-size: 1.5rem;
            }
            .content-primary {
                padding: 1rem 0.8rem;
            }
            .my-logo {
                font-size: 1.2rem;
            }
            .featured-image-wrap figcaption {
                font-size: 0.8rem;
                padding: 0.5rem 0.8rem;
            }
        }
        .text-muted {
            color: #5a7a8a;
        }
        .mt-2 {
            margin-top: 1.5rem;
        }
        .mb-1 {
            margin-bottom: 0.8rem;
        }
        .fw-bold {
            font-weight: 700;
        }
        .flex-between {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }