:root {
            --primary: #c0392b;
            --primary-dark: #a93226;
            --secondary: #2c3e50;
            --accent: #f1c40f;
            --bg: #f9f7f3;
            --card-bg: #ffffff;
            --text: #1e2a36;
            --text-light: #556b7c;
            --border: #e0dcd5;
            --radius: 12px;
            --shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
            --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --max-width: 1120px;
            --header-height: 70px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            padding-top: var(--header-height);
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: var(--primary-dark);
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--header-height);
            background: var(--card-bg);
            border-bottom: 1px solid var(--border);
            z-index: 1000;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
            display: flex;
            align-items: center;
            padding: 0 24px;
            transition: box-shadow 0.3s;
        }
        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
        }
        .header-inner {
            max-width: var(--max-width);
            width: 100%;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .my-logo {
            font-size: 1.5rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: var(--secondary);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .my-logo i {
            color: var(--primary);
            font-size: 1.8rem;
        }
        .my-logo span {
            background: linear-gradient(135deg, var(--primary), #e74c3c);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .my-logo small {
            font-size: 0.7rem;
            font-weight: 400;
            color: var(--text-light);
            -webkit-text-fill-color: var(--text-light);
            background: none;
            letter-spacing: 0.3px;
        }
        .nav-main {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .nav-main a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--secondary);
            position: relative;
            padding: 4px 0;
        }
        .nav-main a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            transition: width 0.3s;
        }
        .nav-main a:hover::after {
            width: 100%;
        }
        .nav-main a:hover {
            text-decoration: none;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 4px;
            background: none;
            border: none;
        }
        .hamburger span {
            width: 26px;
            height: 3px;
            background: var(--secondary);
            border-radius: 3px;
            transition: all 0.3s;
        }
        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(6px, -6px);
        }
        .breadcrumb-wrap {
            max-width: var(--max-width);
            margin: 20px auto 0;
            padding: 0 24px;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
            font-size: 0.85rem;
            color: var(--text-light);
            list-style: none;
            padding: 10px 16px;
            background: var(--card-bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .breadcrumb li+li::before {
            content: '›';
            margin-right: 10px;
            color: var(--text-light);
            font-weight: 600;
        }
        .breadcrumb a {
            color: var(--primary);
        }
        .breadcrumb .current {
            color: var(--text);
            font-weight: 600;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px 60px;
        }
        article {
            background: var(--card-bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 40px 36px;
            margin: 28px 0 40px;
        }
        h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            color: var(--secondary);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        h1 i {
            color: var(--primary);
            margin-right: 10px;
        }
        h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--secondary);
            margin-top: 48px;
            margin-bottom: 18px;
            padding-bottom: 8px;
            border-bottom: 3px solid var(--primary);
            display: inline-block;
        }
        h3 {
            font-size: 1.35rem;
            font-weight: 600;
            color: var(--secondary);
            margin-top: 32px;
            margin-bottom: 12px;
        }
        h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--primary-dark);
            margin-top: 24px;
            margin-bottom: 8px;
        }
        p {
            margin-bottom: 18px;
            font-size: 1.02rem;
            color: var(--text);
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 400;
            color: var(--text-light);
            line-height: 1.8;
            border-left: 4px solid var(--primary);
            padding-left: 20px;
            margin-bottom: 28px;
        }
        .highlight-box {
            background: #fef9e7;
            border-left: 4px solid var(--accent);
            padding: 18px 22px;
            border-radius: 0 var(--radius) var(--radius) 0;
            margin: 24px 0;
        }
        .highlight-box strong {
            color: var(--secondary);
        }
        .data-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 16px;
            margin: 24px 0;
        }
        .data-card {
            background: var(--bg);
            padding: 18px 16px;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            text-align: center;
        }
        .data-card .number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            display: block;
        }
        .data-card .label {
            font-size: 0.9rem;
            color: var(--text-light);
            font-weight: 500;
        }
        .interview-box {
            background: #eaf7f0;
            border-radius: var(--radius);
            padding: 24px 28px;
            margin: 28px 0;
            border: 1px solid #c8e0d4;
        }
        .interview-box .quote {
            font-style: italic;
            font-size: 1.1rem;
            color: var(--secondary);
            margin-bottom: 8px;
        }
        .interview-box .attribution {
            font-weight: 600;
            color: var(--primary-dark);
        }
        .faq-item {
            border-bottom: 1px solid var(--border);
            padding: 18px 0;
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-item .question {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--secondary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .faq-item .question i {
            transition: transform 0.3s;
            color: var(--primary);
        }
        .faq-item .question.open i {
            transform: rotate(180deg);
        }
        .faq-item .answer {
            margin-top: 10px;
            color: var(--text-light);
            line-height: 1.7;
        }
        .featured-img {
            margin: 32px 0;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .featured-img img {
            width: 100%;
            max-height: 480px;
            object-fit: cover;
        }
        .featured-img figcaption {
            padding: 12px 18px;
            font-size: 0.9rem;
            color: var(--text-light);
            background: var(--bg);
            border-top: 1px solid var(--border);
        }
        .interact-section {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            margin: 48px 0 24px;
        }
        .interact-card {
            background: var(--bg);
            border-radius: var(--radius);
            padding: 24px 28px;
            border: 1px solid var(--border);
        }
        .interact-card h3 {
            margin-top: 0;
            font-size: 1.2rem;
        }
        .interact-card form {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-top: 12px;
        }
        .interact-card input,
        .interact-card textarea,
        .interact-card select {
            padding: 10px 14px;
            border: 1px solid var(--border);
            border-radius: 8px;
            font-family: var(--font);
            font-size: 0.95rem;
            background: var(--card-bg);
            transition: border 0.2s;
        }
        .interact-card input:focus,
        .interact-card textarea:focus,
        .interact-card select:focus {
            outline: none;
            border-color: var(--primary);
        }
        .interact-card textarea {
            resize: vertical;
            min-height: 80px;
        }
        .interact-card .btn {
            background: var(--primary);
            color: #fff;
            padding: 10px 20px;
            border: none;
            border-radius: 8px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background 0.3s, transform 0.15s;
            align-self: flex-start;
        }
        .interact-card .btn:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
        }
        .interact-card .btn i {
            margin-right: 6px;
        }
        .rating-stars {
            display: flex;
            gap: 6px;
            font-size: 1.6rem;
            color: #ccc;
            cursor: pointer;
            direction: rtl;
        }
        .rating-stars i {
            transition: color 0.2s, transform 0.15s;
        }
        .rating-stars i:hover,
        .rating-stars i:hover~i {
            color: var(--accent);
            transform: scale(1.1);
        }
        friend-link {
            display: block;
            margin-top: 40px;
            padding: 28px 32px;
            background: var(--card-bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
        }
        friend-link::before {
            content: '🔗 \00a0 Friend Links';
            display: block;
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        friend-link a {
            display: inline-block;
            margin: 6px 16px 6px 0;
            padding: 6px 14px;
            background: var(--bg);
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 500;
            border: 1px solid var(--border);
            transition: all 0.2s;
        }
        friend-link a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            text-decoration: none;
        }
        .site-footer {
            background: var(--secondary);
            color: #d5dfe8;
            padding: 32px 24px 24px;
            margin-top: 48px;
        }
        .site-footer .footer-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            font-size: 0.9rem;
        }
        .site-footer a {
            color: #f1c40f;
        }
        .site-footer a:hover {
            color: #fff;
        }
        .site-footer .copyright {
            width: 100%;
            text-align: center;
            margin-top: 18px;
            padding-top: 18px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.85rem;
            color: #b0bbc6;
        }
        @media (max-width: 820px) {
            .nav-main {
                position: fixed;
                top: var(--header-height);
                left: 0;
                width: 100%;
                background: var(--card-bg);
                flex-direction: column;
                padding: 20px 24px 28px;
                gap: 18px;
                box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
                transform: translateY(-120%);
                transition: transform 0.35s ease;
                border-bottom: 2px solid var(--border);
            }
            .nav-main.open {
                transform: translateY(0);
            }
            .hamburger {
                display: flex;
            }
            .interact-section {
                grid-template-columns: 1fr;
            }
            article {
                padding: 28px 18px;
            }
            h1 {
                font-size: 1.9rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .data-grid {
                grid-template-columns: 1fr 1fr;
            }
            .site-footer .footer-inner {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 480px) {
            :root {
                --header-height: 60px;
            }
            .my-logo {
                font-size: 1.2rem;
            }
            .my-logo i {
                font-size: 1.4rem;
            }
            article {
                padding: 20px 14px;
            }
            h1 {
                font-size: 1.6rem;
            }
            h2 {
                font-size: 1.3rem;
            }
            .data-grid {
                grid-template-columns: 1fr;
            }
            .breadcrumb {
                font-size: 0.75rem;
                padding: 8px 12px;
            }
            .interact-card {
                padding: 18px 16px;
            }
            .rating-stars {
                font-size: 1.3rem;
            }
            friend-link {
                padding: 20px 18px;
            }
        }
        .text-muted {
            color: var(--text-light);
        }
        .mt-1 {
            margin-top: 8px;
        }
        .mt-2 {
            margin-top: 16px;
        }
        .mb-1 {
            margin-bottom: 8px;
        }
        .flex {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .gap-2 {
            gap: 16px;
        }
        .last-updated {
            display: inline-block;
            font-size: 0.85rem;
            color: var(--text-light);
            background: var(--bg);
            padding: 4px 14px;
            border-radius: 20px;
            border: 1px solid var(--border);
            margin-bottom: 16px;
        }