/* ======================================================
   全局变量 & 基础重置
   ====================================================== */
:root {
    --primary: #4F46E5;
    --primary-light: #818CF8;
    --primary-dark: #3730A3;
    --accent: #F59E0B;
    --accent-light: #FCD34D;
    --text-main: #1E293B;
    --text-secondary: #475569;
    --text-muted: #64748B;
    --bg-white: #FFFFFF;
    --bg-warm: #FFFBEB;
    --bg-light: #F8FAFC;
    --bg-blue: #EEF2FF;
    --bg-green: #F0FDF4;
    --border: #E2E8F0;
    --border-light: #F1F5F9;
    --radius-sm: 0.5rem;
    --radius: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 10px 25px -5px rgba(0, 0, 0, 0.08), 0 4px 10px -6px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 20px 40px -10px rgba(0, 0, 0, 0.1);
    --gap: 1.5rem;
}

* { box-sizing: border-box; }
html { height: 100%; scroll-behavior: smooth; }
body {
    min-height: 100vh;
    margin: 0; padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
    color: var(--text-main);
    line-height: 1.7;
    background: var(--bg-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
#main, .site-main { flex: 1; width: 100%; }
.container { max-width: 1100px; margin: 0 auto; padding: 0 1.5rem; }
.text-center { text-align: center; }
.text-no-space { letter-spacing: 0; word-spacing: 0; }

/* ======================================================
   通用区块
   ====================================================== */
section { padding: 5rem 0; }
section:nth-child(odd) { background: var(--bg-white); }

/* ======================================================
   通用标题
   ====================================================== */
.section-title {
    font-size: 1.85rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}
.section-subtitle {
    font-size: 1.05rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 3rem;
    line-height: 1.6;
}

/* ======================================================
   通用按钮
   ====================================================== */
.bg-btn {
    display: inline-block;
    padding: 0.85rem 2rem;
    border-radius: 3rem;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 0.01em;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
}
.btn-primary {
    background: var(--primary);
    color: #fff;
    border: 2px solid var(--primary);
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.25);
}
.btn-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    box-shadow: 0 6px 20px rgba(79, 70, 229, 0.35);
    transform: translateY(-1px);
}
.btn-outline {
    border: 2px solid var(--primary);
    color: var(--primary);
    background: transparent;
}
.btn-outline:hover {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.2);
}

/* ======================================================
   1. 英雄区块
   ====================================================== */
.home-background {
    background: linear-gradient(160deg, #EEF2FF 0%, #FFFFFF 50%, #FFFBEB 100%);
    padding: 5rem 0 4rem;
    position: relative;
    overflow: hidden;
}
.home-background::before {
    content: '';
    position: absolute;
    top: -30%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(79, 70, 229, 0.06) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}
.home-background::after {
    content: '';
    position: absolute;
    bottom: -20%;
    left: -5%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(245, 158, 11, 0.06) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}
.bg-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 3rem;
    position: relative;
    z-index: 1;
}
.bg-text { flex: 1; }
.bg-title {
    font-size: 2.4rem;
    font-weight: 800;
    line-height: 1.25;
    margin-bottom: 1.25rem;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, #1E293B 0%, #4F46E5 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.bg-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 0.75rem;
    max-width: 540px;
}
.bg-desc {
    font-size: 1rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 0.35rem;
}
.bg-desc::before {
    content: '';
    display: inline-block;
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
}
.bg-btns { display: flex; gap: 1rem; flex-wrap: wrap; }
.bg-media { flex: 0.4; text-align: right; position: relative; }
.bg-video {
    width: 100%;
    max-width: 440px;
    border-radius: 1.25rem;
    box-shadow: 0 25px 60px -15px rgba(79, 70, 229, 0.15), 0 10px 20px -5px rgba(0, 0, 0, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.6);
}

/* ======================================================
   2. 下载信息模块
   ====================================================== */
.download-info-section {
    background: var(--bg-white);
    padding: 2.5rem 0;
    border-bottom: 1px solid var(--border-light);
}
.download-info-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.25rem 3rem;
}
.info-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0.25rem 0;
}
.info-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 0.35rem;
    font-weight: 500;
}
.info-item strong {
    font-size: 1rem;
    color: var(--text-main);
    font-weight: 600;
}

/* ======================================================
   3. 软件介绍
   ====================================================== */
.intro-section {
    background: var(--bg-light);
}
.intro-text {
    max-width: 750px;
    margin: 0 auto;
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.85;
}
.intro-text p { margin-bottom: 1.25rem; }
.intro-text strong { color: var(--primary); font-weight: 600; }

/* ======================================================
   4 & 5. 版本模块通用
   ====================================================== */
.standalone-section {
    background: linear-gradient(180deg, #FFFFFF 0%, #F8FAFC 100%);
}
.pro-section {
    background: linear-gradient(180deg, #FFFFFF 0%, #EEF2FF 100%);
}
.version-content {
    max-width: 900px;
    margin: 0 auto;
}
.version-intro {
    text-align: center;
    margin-bottom: 2.5rem;
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.7;
}
.version-intro strong { color: var(--primary); }
.version-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--gap);
}
.version-card {
    background: var(--bg-white);
    padding: 1.75rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: all 0.25s ease;
}
.version-card:hover {
    box-shadow: var(--shadow-md);
    border-color: #C7D2FE;
    transform: translateY(-2px);
}
.version-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.version-card h3::before {
    content: '';
    display: inline-block;
    width: 4px;
    height: 18px;
    background: var(--primary);
    border-radius: 2px;
}
.version-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.version-card ul li {
    padding: 0.4rem 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
    padding-left: 1.35rem;
    position: relative;
}
.version-card ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.75rem;
    width: 6px;
    height: 6px;
    background: var(--accent-light);
    border-radius: 50%;
}
.version-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.75;
    margin: 0;
}

/* Pro版卡片 */
.pro-card {
    border-color: #C7D2FE;
    background: linear-gradient(135deg, #FFFFFF 0%, #F5F3FF 100%);
}
.pro-card h3 { color: var(--primary-dark); }
.pro-card h3::before { background: var(--primary-dark); }

/* ======================================================
   6. 版本对比表格
   ====================================================== */
.comparison-section {
    background: var(--bg-light);
}
.comparison-table-wrapper {
    max-width: 720px;
    margin: 0 auto;
    overflow-x: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}
.comparison-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
}
.comparison-table thead th {
    background: var(--primary);
    color: #fff;
    padding: 1rem 1.25rem;
    text-align: center;
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 0.02em;
}
.comparison-table thead th:first-child {
    text-align: left;
    padding-left: 1.5rem;
}
.comparison-table tbody td {
    padding: 0.85rem 1.25rem;
    border-bottom: 1px solid var(--border-light);
    text-align: center;
    color: var(--text-secondary);
}
.comparison-table tbody td:first-child {
    text-align: left;
    font-weight: 500;
    color: var(--text-main);
    padding-left: 1.5rem;
}
.comparison-table tbody tr:last-child td { border-bottom: none; }
.comparison-table tbody tr:hover { background: #F8FAFC; }
.comparison-table tbody tr:last-child td {
    font-weight: 600;
    background: #FFFBEB;
}

/* ======================================================
   7. 支持平台（新增）
   ====================================================== */
.platforms-section {
    background: var(--bg-white);
}
.platforms-intro {
    text-align: center;
    color: var(--text-muted);
    font-size: 1.05rem;
    margin-bottom: 2.5rem;
}
.platforms-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--gap);
}
.platform-card {
    background: var(--bg-white);
    padding: 1.75rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: all 0.25s ease;
    position: relative;
    overflow: hidden;
}
.platform-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-light), var(--accent-light));
    opacity: 0;
    transition: opacity 0.25s ease;
}
.platform-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
    border-color: #C7D2FE;
}
.platform-card:hover::before { opacity: 1; }
.platform-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 0.75rem;
}
.platform-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.7;
    margin: 0;
}

/* ======================================================
   8. 为什么选择我们
   ====================================================== */
.why-choose-section {
    background: linear-gradient(180deg, #FFFBEB 0%, #FFFFFF 100%);
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--gap);
    max-width: 820px;
    margin: 0 auto 3rem;
}
.stat-card {
    text-align: center;
    padding: 1.75rem 1rem;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: all 0.25s ease;
}
.stat-card:hover {
    box-shadow: var(--shadow);
    border-color: #FCD34D;
    transform: translateY(-2px);
}
.stat-number {
    font-size: 1.75rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary) 0%, #7C3AED 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.35rem;
    letter-spacing: -0.02em;
}
.stat-label {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 500;
}

.user-cases {
    max-width: 900px;
    margin: 0 auto;
}
.user-cases h3 {
    font-size: 1.3rem;
    color: var(--text-main);
}
.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--gap);
}
.case-card {
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    box-shadow: var(--shadow-sm);
    transition: all 0.25s ease;
}
.case-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}
.case-header {
    font-weight: 700;
    font-size: 1rem;
    color: var(--text-main);
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid #FEF3C7;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.case-header::before {
    content: '';
    display: inline-block;
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
}
.case-body p {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
}
.case-body ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.case-body ul li {
    padding: 0.3rem 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
    padding-left: 1rem;
    position: relative;
}
.case-body ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.65rem;
    width: 5px;
    height: 5px;
    background: var(--accent-light);
    border-radius: 50%;
}

/* ======================================================
   9. 核心功能详解
   ====================================================== */
.features-section {
    background: var(--bg-light);
}
.features-detailed {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    max-width: 800px;
    margin: 0 auto;
}
.feature-detailed-card {
    background: var(--bg-white);
    padding: 2rem 2.25rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    border-left: 4px solid transparent;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}
.feature-detailed-card:nth-child(1) { border-left-color: #818CF8; }
.feature-detailed-card:nth-child(2) { border-left-color: #34D399; }
.feature-detailed-card:nth-child(3) { border-left-color: #FBBF24; }
.feature-detailed-card:nth-child(4) { border-left-color: #F472B6; }
.feature-detailed-card:nth-child(5) { border-left-color: #60A5FA; }
.feature-detailed-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateX(2px);
}
.feature-detailed-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 0.6rem;
}
.feature-detailed-card p {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.8;
    margin: 0;
}
.feature-detailed-card p strong { color: var(--primary); font-weight: 600; }

/* ======================================================
   10. 应用场景
   ====================================================== */
.scenarios-section-modern {
    background: var(--bg-white);
    padding: 5rem 0;
}
.scenarios-header { text-align: center; margin-bottom: 3.5rem; }
.scenarios-tagline {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: 0.15em;
    background: #EEF2FF;
    padding: 0.35rem 1rem;
    border-radius: 3rem;
    margin-bottom: 1rem;
    text-transform: uppercase;
}
.scenarios-main-title {
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-main);
    margin: 0;
    letter-spacing: -0.02em;
}
.scenarios-title-line {
    width: 48px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-light), var(--accent-light));
    margin: 1.25rem auto 0;
    border-radius: 2px;
}

.scenarios-rows { margin-bottom: 3rem; }
.scenario-row {
    display: flex;
    align-items: center;
    gap: 3.5rem;
    margin-bottom: 4rem;
}
.scenario-row.row-reverse { flex-direction: row-reverse; }
.scenario-meta { flex: 1; }
.scenario-visual { flex: 1; }

.scenario-row-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-main);
    margin: 0 0 1rem;
    letter-spacing: -0.02em;
}
.scenario-row-desc {
    font-size: 1rem;
    color: var(--text-muted);
    line-height: 1.75;
    margin: 0 0 1.5rem;
}

.sc-badge {
    display: inline-block;
    background: var(--bg-blue);
    color: var(--primary);
    padding: 0.35rem 0.9rem;
    border-radius: 3rem;
    font-size: 0.85rem;
    font-weight: 500;
    margin-right: 0.5rem;
    margin-bottom: 0.5rem;
    border: 1px solid #C7D2FE;
}

.window-mockup {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 1rem;
    padding: 0.35rem;
    box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}
.window-mockup:hover {
    transform: translateY(-3px);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.12);
}
.window-header { padding: 0.6rem 0.85rem 0.75rem; }
.dot-win {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    margin-right: 6px;
}
.dot-win:nth-child(1) { background: #FCA5A5; }
.dot-win:nth-child(2) { background: #FCD34D; }
.dot-win:nth-child(3) { background: #6EE7B7; }
.video-container {
    width: 100%;
    line-height: 0;
    overflow: hidden;
    border-radius: 0 0 0.6rem 0.6rem;
}
.window-video, .window-img {
    display: block;
    width: 100%;
    height: auto;
}
.window-video { animation: fadeInVideo 1s ease-in; }
@keyframes fadeInVideo { from { opacity: 0; } to { opacity: 1; } }

.scenarios-extra-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--gap);
}
.scenario-item {
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    transition: all 0.25s ease;
}
.scenario-item:hover {
    box-shadow: var(--shadow);
    border-color: #C7D2FE;
    transform: translateY(-2px);
}
.scenario-item h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 0.6rem;
}
.scenario-item p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.65;
    margin: 0;
}

/* ======================================================
   11. 系统支持
   ====================================================== */
.system-section {
    background: linear-gradient(180deg, #F8FAFC 0%, #FFFFFF 100%);
    text-align: center;
}
.system-icons {
    display: flex;
    justify-content: center;
    gap: 3.5rem;
    flex-wrap: wrap;
    margin-top: 2rem;
}
.system-icon {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    font-weight: 600;
    color: var(--text-main);
    font-size: 0.95rem;
    padding: 1.5rem;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: all 0.25s ease;
    min-width: 100px;
}
.system-icon:hover {
    box-shadow: var(--shadow);
    transform: translateY(-2px);
    border-color: #C7D2FE;
}

/* ======================================================
   12. FAQ
   ====================================================== */
.faq-section {
    background: var(--bg-light);
}
.faq-grid {
    max-width: 750px;
    margin: 0 auto;
}
.faq-item {
    background: var(--bg-white);
    padding: 1.5rem 1.75rem;
    border-radius: var(--radius);
    margin-bottom: 0.75rem;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: all 0.2s ease;
    cursor: default;
}
.faq-item:hover {
    box-shadow: var(--shadow);
    border-color: #C7D2FE;
}
.faq-question {
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-main);
    font-size: 0.95rem;
}
.faq-answer {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.65;
}

/* ======================================================
   13. CTA 下载引导
   ====================================================== */
.cta-section {
    background: linear-gradient(160deg, #EEF2FF 0%, #FFFFFF 50%, #FFFBEB 100%);
    padding: 5rem 0;
}
.download-options {
    display: flex;
    gap: var(--gap);
    justify-content: center;
    margin-top: 2.5rem;
    flex-wrap: wrap;
}
.download-card {
    background: var(--bg-white);
    padding: 2.5rem 2rem;
    border-radius: var(--radius-xl);
    border: 1px solid var(--border);
    text-align: center;
    flex: 1;
    min-width: 260px;
    max-width: 360px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}
.download-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
}
.download-card:first-child::before {
    background: linear-gradient(90deg, var(--primary-light), #34D399);
}
.download-card:last-child::before {
    background: linear-gradient(90deg, #818CF8, var(--accent-light));
}
.download-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}
.download-card h3 {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 0.5rem;
}
.download-desc {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

/* ======================================================
   响应式设计
   ====================================================== */
@media (max-width: 1024px) {
    .platforms-grid { grid-template-columns: repeat(2, 1fr); }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .cases-grid { grid-template-columns: repeat(2, 1fr); }
    .scenarios-extra-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 992px) {
    section { padding: 3.5rem 0; }
    .bg-container { flex-direction: column; text-align: center; }
    .bg-media { text-align: center; margin-top: 2rem; }
    .bg-title { font-size: 1.9rem; }
    .bg-subtitle { max-width: 100%; margin: 0 auto 1rem; }
    .bg-btns { justify-content: center; }
    
    .version-grid { grid-template-columns: 1fr; }
    .scenarios-main-title { font-size: 1.6rem; }
    
    .scenario-row,
    .scenario-row.row-reverse {
        flex-direction: column;
        gap: 1.5rem;
        margin-bottom: 2.5rem;
    }
    .scenario-row-title { font-size: 1.3rem; }
    
    .platforms-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
    section { padding: 2.5rem 0; }
    .bg-title { font-size: 1.6rem; }
    .section-title { font-size: 1.4rem; }
    
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 0.75rem; }
    .cases-grid { grid-template-columns: 1fr; }
    .platforms-grid { grid-template-columns: 1fr; }
    .scenarios-extra-grid { grid-template-columns: 1fr; }
    
    .system-icons { gap: 1.5rem; }
    .download-options { gap: 1rem; }
    .download-card { max-width: 100%; }
    
    .comparison-table { font-size: 0.85rem; }
    .comparison-table thead th,
    .comparison-table tbody td { padding: 0.6rem 0.5rem; }
    
    .feature-detailed-card { padding: 1.25rem 1.5rem; }
}