/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #2F6B4F;
            --primary-light: #3A7D5D;
            --primary-bg: #E8F0EA;
            --accent: #D2603A;
            --accent-hover: #B74E2C;
            --bg: #F7F4EE;
            --card-bg: #FFFFFF;
            --text-dark: #1E2A25;
            --text-secondary: #6B7A72;
            --border: #E7E1D6;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --radius-pill: 999px;
            --shadow-sm: 0 8px 24px rgba(30, 42, 37, 0.06);
            --shadow-md: 0 12px 32px rgba(30, 42, 37, 0.10);
            --font-heading: 'HarmonyOS Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-body: 'Source Han Serif SC', 'Noto Serif CJK SC', 'SimSun', serif;
            --container: 1160px;
            --spacing-section: 88px;
            --spacing-section-mobile: 56px;
        }

        /* ===== Reset / Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-body);
            background: var(--bg);
            color: var(--text-dark);
            line-height: 1.75;
            padding-bottom: 76px;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        button {
            font-family: var(--font-heading);
            cursor: pointer;
            border: none;
            background: none;
        }
        input {
            font-family: var(--font-body);
        }
        h1,
        h2,
        h3,
        h4 {
            font-family: var(--font-heading);
            font-weight: 700;
            line-height: 1.35;
        }
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: var(--radius-pill);
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 15px;
            line-height: 1.4;
            text-decoration: none;
            border: 2px solid transparent;
            transition: all 0.3s ease;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--accent);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(210, 96, 58, 0.28);
        }
        .btn-primary:active {
            background: #9E421F;
            transform: translateY(0);
            box-shadow: none;
        }
        .btn-primary:focus-visible,
        .btn-outline:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary-bg);
            transform: translateY(-2px);
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
            border-radius: var(--radius-pill);
            padding: 12px 28px;
            font-weight: 700;
            font-size: 15px;
            transition: all 0.3s ease;
        }
        .btn-accent:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(210, 96, 58, 0.3);
        }

        /* ===== 徽章 / 标签 ===== */
        .badge {
            display: inline-block;
            padding: 5px 16px;
            border-radius: var(--radius-pill);
            background: var(--primary-bg);
            color: var(--primary);
            font-family: var(--font-heading);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
        }
        .tag {
            display: inline-block;
            padding: 3px 12px;
            border-radius: var(--radius-pill);
            background: var(--primary-bg);
            color: var(--primary);
            font-family: var(--font-heading);
            font-size: 12px;
            font-weight: 600;
            margin-right: 6px;
            margin-bottom: 6px;
            transition: all 0.2s ease;
        }
        .tag:hover {
            background: var(--primary);
            color: #fff;
        }

        /* ===== 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(247, 244, 238, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 20px;
        }
        .logo {
            font-family: var(--font-heading);
            font-size: 22px;
            font-weight: 800;
            color: var(--text-dark);
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }
        .logo-ico {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow: hidden;
            flex-shrink: 0;
        }
        .logo-ico::before {
            content: '';
            width: 14px;
            height: 14px;
            border-radius: 2px 10px 2px 2px;
            background: var(--bg);
            transform: rotate(45deg);
            display: block;
            position: absolute;
            top: 5px;
            left: 6px;
        }
        .logo-ico::after {
            content: '';
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
            position: absolute;
            bottom: 5px;
            right: 6px;
        }
        .main-nav {
            display: flex;
            gap: 28px;
            align-items: center;
        }
        .main-nav a {
            font-family: var(--font-heading);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-dark);
            position: relative;
            padding: 6px 0;
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            transition: width 0.3s ease;
        }
        .main-nav a:hover {
            color: var(--primary);
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .btn-nav {
            padding: 10px 24px;
            font-size: 14px;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            background: none;
            border: none;
            cursor: pointer;
        }
        .nav-toggle span {
            width: 24px;
            height: 2px;
            background: var(--text-dark);
            transition: all 0.3s ease;
            border-radius: 2px;
        }

        /* ===== Hero ===== */
        .hero {
            padding: 80px 0 72px;
            background: var(--bg);
            position: relative;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: 60px;
            right: -80px;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: var(--primary-bg);
            opacity: 0.6;
        }
        .hero-inner {
            display: grid;
            grid-template-columns: 1.05fr 0.95fr;
            gap: 56px;
            align-items: center;
            position: relative;
            z-index: 1;
        }
        .hero-text {
            max-width: 560px;
        }
        .hero-text .badge {
            margin-bottom: 20px;
        }
        .hero-text h1 {
            font-size: 44px;
            line-height: 1.32;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }
        .hero-text h1 em {
            font-style: normal;
            color: var(--primary);
            position: relative;
        }
        .hero-desc {
            font-size: 17px;
            color: var(--text-secondary);
            margin-bottom: 32px;
            line-height: 1.85;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 28px;
        }
        .hero-badges {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            font-family: var(--font-heading);
            font-size: 14px;
            color: var(--text-secondary);
        }
        .hero-badges span {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .hero-badges span::before {
            content: '✓';
            color: var(--primary);
            font-weight: 700;
            font-size: 15px;
        }
        .hero-image {
            position: relative;
        }
        .hero-image img {
            width: 100%;
            height: 460px;
            object-fit: cover;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
        }
        .hero-image .hero-caption {
            margin-top: 12px;
            font-size: 13px;
            color: var(--text-secondary);
            text-align: right;
        }
        .hero-image .cover-line {
            position: absolute;
            top: -12px;
            left: -12px;
            width: 48px;
            height: 4px;
            background: var(--accent);
            border-radius: 2px;
        }

        /* ===== 板块头部 ===== */
        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 48px;
        }
        .section-head .badge {
            margin-bottom: 12px;
        }
        .section-head h2 {
            font-size: 32px;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }
        .section-head p {
            color: var(--text-secondary);
            font-size: 16px;
            line-height: 1.8;
        }

        /* ===== 卖点三连 ===== */
        .features {
            padding: var(--spacing-section) 0;
        }
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .feature-card {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all 0.35s ease;
            display: flex;
            flex-direction: column;
        }
        .feature-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-6px);
        }
        .feature-card .feature-img {
            height: 200px;
            overflow: hidden;
        }
        .feature-card .feature-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .feature-card:hover .feature-img img {
            transform: scale(1.03);
        }
        .feature-card-body {
            padding: 28px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .feature-num {
            font-family: var(--font-heading);
            font-size: 14px;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: 2px;
            margin-bottom: 8px;
        }
        .feature-card h3 {
            font-size: 20px;
            margin-bottom: 10px;
        }
        .feature-card p {
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.75;
            flex: 1;
        }
        .text-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 16px;
            font-family: var(--font-heading);
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            transition: gap 0.3s ease;
        }
        .text-link:hover {
            gap: 10px;
            color: var(--accent);
        }
        .text-link::after {
            content: '→';
            font-size: 16px;
        }

        /* ===== 场景演示 ===== */
        .scenario {
            padding: var(--spacing-section) 0;
            background: #FFFDF9;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .scenario-full {
            margin-bottom: 24px;
            position: relative;
        }
        .scenario-full img {
            width: 100%;
            height: 380px;
            object-fit: cover;
            border-radius: var(--radius-lg);
        }
        .scenario-caption {
            margin-top: 10px;
            font-size: 13px;
            color: var(--text-secondary);
            text-align: left;
        }
        .scenario-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin-bottom: 24px;
        }
        .scenario-row img {
            width: 100%;
            height: 280px;
            object-fit: cover;
            border-radius: var(--radius-md);
        }
        .scenario-text {
            max-width: 720px;
            margin: 40px auto 0;
            font-size: 17px;
            line-height: 2;
            color: var(--text-dark);
            text-align: center;
            padding: 0 24px;
        }
        .scenario-text p::first-letter {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
        }

        /* ===== 版本更新 ===== */
        .changelog {
            padding: var(--spacing-section) 0;
        }
        .changelog-list {
            max-width: 760px;
            margin: 0 auto;
            position: relative;
            padding-left: 24px;
        }
        .changelog-list::before {
            content: '';
            position: absolute;
            left: 0;
            top: 8px;
            bottom: 8px;
            width: 2px;
            background: var(--border);
            border-radius: 1px;
        }
        .changelog-item {
            position: relative;
            padding: 20px 0 20px 28px;
            border-left: none;
        }
        .changelog-item::before {
            content: '';
            position: absolute;
            left: -29px;
            top: 28px;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--primary);
            border: 2px solid var(--bg);
            box-shadow: 0 0 0 2px var(--primary);
        }
        .changelog-item .changelog-date {
            font-family: var(--font-heading);
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            display: block;
            margin-bottom: 4px;
        }
        .changelog-item h3 {
            font-size: 18px;
            margin-bottom: 6px;
        }
        .changelog-item p {
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.75;
        }

        /* ===== 社会认同 ===== */
        .social-proof {
            padding: var(--spacing-section) 0;
            background: var(--bg);
        }
        .stats-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            background: var(--card-bg);
            border-radius: var(--radius-md);
            padding: 36px 32px;
            box-shadow: var(--shadow-sm);
            margin-bottom: 64px;
            text-align: center;
        }
        .stat strong {
            font-family: var(--font-heading);
            font-size: 32px;
            font-weight: 800;
            color: var(--primary);
            display: block;
            line-height: 1.2;
        }
        .stat span {
            font-size: 14px;
            color: var(--text-secondary);
            display: block;
            margin-top: 4px;
        }
        .testimonials {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
            margin-bottom: 64px;
        }
        .testimonial {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            padding: 28px;
            position: relative;
            box-shadow: var(--shadow-sm);
            border-left: 4px solid var(--primary);
            transition: box-shadow 0.3s ease;
        }
        .testimonial:hover {
            box-shadow: var(--shadow-md);
        }
        .testimonial .quote-mark {
            font-family: Georgia, serif;
            font-size: 48px;
            color: var(--primary-bg);
            line-height: 1;
            display: block;
            margin-bottom: 8px;
            color: var(--primary);
            opacity: 0.3;
        }
        .testimonial p {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-dark);
            margin-bottom: 16px;
        }
        .testimonial-author {
            font-family: var(--font-heading);
            font-size: 13px;
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* ===== FAQ ===== */
        .faq-section {
            max-width: 760px;
            margin: 0 auto;
        }
        .faq-section>h3 {
            text-align: center;
            font-size: 24px;
            margin-bottom: 28px;
        }
        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color 0.3s ease;
        }
        .faq-item.active {
            border-color: var(--primary);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 20px;
            font-family: var(--font-heading);
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            transition: color 0.3s ease;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-icon {
            position: relative;
            width: 18px;
            height: 18px;
            flex-shrink: 0;
        }
        .faq-icon::before,
        .faq-icon::after {
            content: '';
            position: absolute;
            background: var(--primary);
            border-radius: 1px;
            transition: all 0.3s ease;
        }
        .faq-icon::before {
            width: 18px;
            height: 2px;
            top: 8px;
            left: 0;
        }
        .faq-icon::after {
            width: 2px;
            height: 18px;
            top: 0;
            left: 8px;
        }
        .faq-item.active .faq-icon::after {
            transform: scaleY(0);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
            padding: 0 20px;
        }
        .faq-answer p {
            padding-bottom: 18px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
        }

        /* ===== 资讯区 ===== */
        .news {
            padding: var(--spacing-section) 0;
            background: #FFFDF9;
            border-top: 1px solid var(--border);
        }
        .news-layout {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 48px;
            align-items: start;
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }
        .news-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 18px 0;
            border-bottom: 1px solid var(--border);
            transition: background 0.2s ease;
        }
        .news-item:hover {
            background: rgba(232, 240, 234, 0.4);
        }
        .news-cat {
            flex-shrink: 0;
            font-family: var(--font-heading);
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-bg);
            border-radius: var(--radius-pill);
            padding: 3px 12px;
        }
        .news-title {
            flex: 1;
            font-family: var(--font-heading);
            font-size: 16px;
            font-weight: 500;
            color: var(--text-dark);
            line-height: 1.5;
            transition: color 0.2s ease;
        }
        .news-title:hover {
            color: var(--primary);
        }
        .news-date {
            flex-shrink: 0;
            font-size: 13px;
            color: var(--text-secondary);
        }
        .news-sidebar {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            padding: 28px;
            box-shadow: var(--shadow-sm);
        }
        .news-sidebar h4 {
            font-size: 18px;
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--border);
        }
        .news-sidebar ol {
            list-style: none;
            counter-reset: hot;
        }
        .news-sidebar ol li {
            counter-increment: hot;
            padding: 10px 0;
            border-bottom: 1px solid var(--border);
            display: flex;
            gap: 12px;
            align-items: flex-start;
        }
        .news-sidebar ol li:last-child {
            border-bottom: none;
        }
        .news-sidebar ol li::before {
            content: counter(hot, decimal-leading-zero);
            font-family: var(--font-heading);
            font-size: 14px;
            font-weight: 700;
            color: var(--accent);
            flex-shrink: 0;
        }
        .news-sidebar ol li a {
            font-size: 14px;
            line-height: 1.6;
            color: var(--text-dark);
            transition: color 0.2s ease;
        }
        .news-sidebar ol li a:hover {
            color: var(--primary);
        }

        /* ===== 转化表单 ===== */
        .subscribe {
            padding: var(--spacing-section) 0;
            background: var(--bg);
        }
        .subscribe-box {
            max-width: 720px;
            margin: 0 auto;
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            text-align: center;
            box-shadow: var(--shadow-md);
            position: relative;
            overflow: hidden;
        }
        .subscribe-box::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
        }
        .subscribe-box .badge {
            margin-bottom: 16px;
        }
        .subscribe-box h2 {
            font-size: 30px;
            margin-bottom: 16px;
        }
        .subscribe-box p {
            color: var(--text-secondary);
            font-size: 16px;
            margin-bottom: 32px;
            line-height: 1.8;
        }
        .subscribe-form {
            display: flex;
            gap: 12px;
            max-width: 480px;
            margin: 0 auto;
        }
        .subscribe-form input[type="email"] {
            flex: 1;
            padding: 14px 18px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 15px;
            background: var(--bg);
            color: var(--text-dark);
            transition: all 0.3s ease;
        }
        .subscribe-form input[type="email"]:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(47, 107, 79, 0.15);
            background: #fff;
        }
        .subscribe-form input[type="email"]::placeholder {
            color: #A0AAA4;
        }
        .subscribe-form .btn {
            flex-shrink: 0;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--text-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 56px 0 28px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 48px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-brand .logo-ico {
            background: var(--primary-light);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 300px;
        }
        .footer-col h4 {
            font-size: 15px;
            color: #fff;
            margin-bottom: 16px;
            font-weight: 600;
        }
        .footer-col a {
            display: block;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            padding: 4px 0;
            transition: color 0.2s ease;
        }
        .footer-col a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 24px;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.4);
        }

        /* ===== 固定转化条 ===== */
        .fixed-cta {
            position: fixed;
            left: 0;
            right: 0;
            bottom: 0;
            z-index: 200;
            background: var(--text-dark);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            padding: 14px 24px;
            min-height: 60px;
            box-shadow: 0 -4px 24px rgba(30, 42, 37, 0.2);
            padding-bottom: calc(14px + env(safe-area-inset-bottom));
        }
        .fixed-cta p {
            font-family: var(--font-heading);
            font-size: 15px;
            font-weight: 500;
            margin: 0;
        }
        .fixed-cta .btn {
            padding: 10px 24px;
            font-size: 14px;
        }
        .fixed-cta-close {
            position: absolute;
            right: 12px;
            top: 50%;
            transform: translateY(-50%);
            width: 28px;
            height: 28px;
            border-radius: 50%;
            color: rgba(255, 255, 255, 0.6);
            font-size: 18px;
            line-height: 1;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.2s ease;
            background: transparent;
        }
        .fixed-cta-close:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.1);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .main-nav {
                gap: 18px;
            }
            .hero-inner {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .hero-text {
                max-width: 100%;
            }
            .hero-image img {
                height: 380px;
            }
            .feature-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 20px;
            }
            .testimonials {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .news-layout {
                grid-template-columns: 1fr;
            }
            .news-sidebar {
                margin-top: 24px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --spacing-section: var(--spacing-section-mobile);
            }
            .header-inner {
                height: 60px;
            }
            .logo {
                font-size: 18px;
            }
            .main-nav {
                display: none;
                position: fixed;
                top: 60px;
                left: 0;
                right: 0;
                background: rgba(247, 244, 238, 0.98);
                backdrop-filter: blur(14px);
                flex-direction: column;
                align-items: flex-start;
                padding: 24px;
                gap: 16px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-md);
                z-index: 99;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                font-size: 17px;
                padding: 8px 0;
                width: 100%;
                border-bottom: 1px solid var(--border);
            }
            .main-nav a:last-of-type {
                border-bottom: none;
            }
            .btn-nav {
                display: none;
            }
            .main-nav .btn-nav {
                display: inline-flex;
                margin-top: 8px;
                width: 100%;
                background: var(--accent);
                color: #fff;
                border-radius: var(--radius-pill);
            }
            .nav-toggle {
                display: flex;
            }
            .hero {
                padding: 48px 0 56px;
            }
            .hero-text h1 {
                font-size: 32px;
            }
            .hero-desc {
                font-size: 16px;
            }
            .hero-image img {
                height: 280px;
            }
            .hero-actions .btn {
                flex: 1;
                min-width: 140px;
            }
            .section-head h2 {
                font-size: 26px;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .feature-card .feature-img {
                height: 180px;
            }
            .scenario-row {
                grid-template-columns: 1fr;
            }
            .scenario-full img {
                height: 240px;
            }
            .scenario-row img {
                height: 220px;
            }
            .scenario-text {
                font-size: 16px;
                padding: 0 16px;
            }
            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
                padding: 28px 20px;
            }
            .stat strong {
                font-size: 26px;
            }
            .testimonials {
                grid-template-columns: 1fr;
            }
            .news-item {
                flex-wrap: wrap;
                gap: 8px;
            }
            .news-cat {
                font-size: 11px;
            }
            .news-title {
                flex-basis: 100%;
                font-size: 15px;
            }
            .news-date {
                font-size: 12px;
            }
            .subscribe-box {
                padding: 40px 24px;
            }
            .subscribe-form {
                flex-direction: column;
            }
            .subscribe-form .btn {
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .fixed-cta {
                flex-direction: column;
                gap: 8px;
                padding: 12px 40px 12px 16px;
                min-height: auto;
            }
            .fixed-cta p {
                font-size: 14px;
                text-align: center;
            }
            .fixed-cta .btn {
                width: 100%;
                text-align: center;
            }
            .fixed-cta-close {
                top: 8px;
                transform: none;
                right: 8px;
            }
            body {
                padding-bottom: 110px;
            }
        }

        @media (max-width: 480px) {
            .container {
                padding: 0 16px;
            }
            .hero-text h1 {
                font-size: 28px;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .stats-bar {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stat strong {
                font-size: 24px;
            }
            .news-sidebar {
                padding: 20px;
            }
            .subscribe-box {
                padding: 32px 16px;
            }
            .subscribe-box h2 {
                font-size: 24px;
            }
            .btn {
                padding: 12px 24px;
                font-size: 14px;
            }
        }