/* ============================================
   Google Chrome Download Landing Page Styles
   ============================================ */

/* ----- Reset & Base ----- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --brand-primary: #4285f4;
  --brand-primary-dark: #3367d6;
  --brand-secondary: #34a853;
  --brand-accent: #ea4335;
  --brand-yellow: #fbbc05;
  --text-primary: #202124;
  --text-secondary: #5f6368;
  --text-light: #80868b;
  --bg-white: #ffffff;
  --bg-light: #f8f9fa;
  --bg-card: #ffffff;
  --border-light: #dadce0;
  --border-medium: #bdc1c6;
  --shadow-sm: 0 1px 2px rgba(60,64,67,0.08), 0 1px 3px rgba(60,64,67,0.06);
  --shadow-md: 0 4px 12px rgba(60,64,67,0.12), 0 1px 4px rgba(60,64,67,0.08);
  --shadow-lg: 0 8px 24px rgba(60,64,67,0.16), 0 2px 8px rgba(60,64,67,0.12);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --max-width: 1200px;
  --header-height: 72px;
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text-primary);
  background: var(--bg-white);
  line-height: 1.6;
  font-size: 16px;
  overflow-x: hidden;
}

a {
  color: var(--brand-primary);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--brand-primary-dark);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  outline: none;
  transition: var(--transition);
}

ul, ol {
  list-style: none;
}

/* ----- Layout Utilities ----- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 80px 0;
}

.section-alt {
  background: var(--bg-light);
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 16px;
  color: var(--text-primary);
  letter-spacing: -0.5px;
}

.section-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  text-align: center;
  max-width: 700px;
  margin: 0 auto 56px;
  line-height: 1.7;
}

/* ----- Spin Animation ----- */
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* ----- Header & Navigation ----- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(218, 220, 224, 0.6);
  z-index: 1000;
  transition: var(--transition);
}

.site-header.scrolled {
  box-shadow: var(--shadow-sm);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
}

.logo svg {
  width: 32px;
  height: 32px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 10px 20px;
  border-radius: var(--radius-xl);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
}

.nav-link:hover {
  background: rgba(66, 133, 244, 0.08);
  color: var(--brand-primary);
}

.nav-link.active {
  background: rgba(66, 133, 244, 0.12);
  color: var(--brand-primary);
  font-weight: 600;
}

/* ----- Buttons ----- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-xl);
  font-size: 1rem;
  font-weight: 600;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--brand-primary);
  color: #fff;
  box-shadow: 0 2px 8px rgba(66, 133, 244, 0.35);
}

.btn-primary:hover {
  background: var(--brand-primary-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(66, 133, 244, 0.45);
}

.btn-secondary {
  background: var(--bg-light);
  color: var(--text-primary);
  border: 1px solid var(--border-light);
}

.btn-secondary:hover {
  background: #eef0f2;
  border-color: var(--border-medium);
  color: var(--text-primary);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--brand-primary);
  border: 2px solid var(--brand-primary);
}

.btn-outline:hover {
  background: var(--brand-primary);
  color: #fff;
}

.btn-lg {
  padding: 16px 40px;
  font-size: 1.1rem;
  border-radius: 32px;
}

.btn-sm {
  padding: 10px 20px;
  font-size: 0.9rem;
}

/* ----- Hero Section ----- */
.hero {
  padding: calc(var(--header-height) + 80px) 0 100px;
  background: linear-gradient(180deg, #f0f4ff 0%, #ffffff 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -100px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(66,133,244,0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-content {
  max-width: 560px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(66, 133, 244, 0.1);
  color: var(--brand-primary);
  padding: 8px 18px;
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.hero-title {
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 20px;
  color: var(--text-primary);
  letter-spacing: -1px;
}

.hero-title span {
  color: var(--brand-primary);
}

.hero-desc {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-meta {
  display: flex;
  gap: 24px;
  margin-top: 28px;
  font-size: 0.85rem;
  color: var(--text-light);
}

.hero-meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-browser-mockup {
  width: 100%;
  max-width: 520px;
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  border: 1px solid var(--border-light);
}

.mockup-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 18px;
  background: #f1f3f4;
  border-bottom: 1px solid var(--border-light);
}

.mockup-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.mockup-dot.red { background: #ea4335; }
.mockup-dot.yellow { background: #fbbc05; }
.mockup-dot.green { background: #34a853; }

.mockup-url {
  flex: 1;
  background: #fff;
  border-radius: 100px;
  padding: 6px 16px;
  font-size: 0.8rem;
  color: var(--text-light);
  margin-left: 8px;
  border: 1px solid var(--border-light);
}

.mockup-body {
  padding: 32px;
  min-height: 240px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.mockup-line {
  height: 12px;
  background: #e8eaed;
  border-radius: 6px;
}

.mockup-line.short { width: 60%; }

.mockup-line.medium { width: 80%; }

.mockup-line.long { width: 100%; }

/* ----- Feature Cards ----- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 32px;
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(66, 133, 244, 0.2);
}

.feature-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
}

.feature-icon.blue { background: rgba(66, 133, 244, 0.1); color: var(--brand-primary); }
.feature-icon.green { background: rgba(52, 168, 83, 0.1); color: var(--brand-secondary); }
.feature-icon.red { background: rgba(234, 67, 53, 0.1); color: var(--brand-accent); }
.feature-icon.yellow { background: rgba(251, 188, 5, 0.1); color: #d49a00; }
.feature-icon.purple { background: rgba(171, 71, 188, 0.1); color: #ab47bc; }
.feature-icon.teal { background: rgba(0, 150, 136, 0.1); color: #009688; }

.feature-icon svg {
  width: 28px;
  height: 28px;
}

.feature-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.feature-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ----- Platform Download ----- */
.platforms-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.platform-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  text-align: center;
  transition: var(--transition);
}

.platform-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(66, 133, 244, 0.2);
}

.platform-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-light);
  border-radius: 16px;
}

.platform-icon svg {
  width: 32px;
  height: 32px;
}

.platform-name {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.platform-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.5;
}

/* ----- Detail Sections ----- */
.detail-section {
  padding: 60px 0;
}

.detail-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  margin-bottom: 80px;
}

.detail-row:last-child {
  margin-bottom: 0;
}

.detail-row.reverse {
  direction: rtl;
}

.detail-row.reverse > * {
  direction: ltr;
}

.detail-image {
  background: var(--bg-light);
  border-radius: var(--radius-md);
  padding: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 320px;
  border: 1px solid var(--border-light);
}

.detail-image svg {
  width: 100%;
  max-width: 320px;
  height: auto;
}

.detail-tag {
  display: inline-block;
  background: rgba(66, 133, 244, 0.1);
  color: var(--brand-primary);
  padding: 6px 14px;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.detail-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 16px;
  line-height: 1.3;
}

.detail-text {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 16px;
}

.detail-list {
  margin-top: 20px;
}

.detail-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 12px;
  font-size: 1rem;
  color: var(--text-secondary);
}

.detail-list li svg {
  width: 20px;
  height: 20px;
  color: var(--brand-secondary);
  flex-shrink: 0;
  margin-top: 2px;
}

/* ----- Reviews ----- */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.review-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: var(--transition);
}

.review-card:hover {
  box-shadow: var(--shadow-md);
}

.review-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.review-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.review-meta {
  flex: 1;
}

.review-name {
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 2px;
}

.review-stars {
  display: flex;
  gap: 2px;
}

.review-stars svg {
  width: 16px;
  height: 16px;
  color: var(--brand-yellow);
  fill: currentColor;
}

.review-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ----- Stats ----- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}

.stat-item {
  padding: 24px;
}

.stat-number {
  font-size: 3rem;
  font-weight: 800;
  color: var(--brand-primary);
  line-height: 1;
  margin-bottom: 8px;
  letter-spacing: -1px;
}

.stat-label {
  font-size: 1rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* ----- Comparison Table ----- */
.comparison-table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-card);
}

.comparison-table th,
.comparison-table td {
  padding: 16px 24px;
  text-align: left;
  border-bottom: 1px solid var(--border-light);
}

.comparison-table th {
  background: var(--bg-light);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text-primary);
}

.comparison-table td {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.comparison-table tr:last-child td {
  border-bottom: none;
}

.comparison-table .check svg {
  width: 22px;
  height: 22px;
  color: var(--brand-secondary);
}

.comparison-table .cross svg {
  width: 22px;
  height: 22px;
  color: var(--brand-accent);
}

.comparison-table .highlight-col {
  background: rgba(66, 133, 244, 0.04);
  border-left: 2px solid var(--brand-primary);
  border-right: 2px solid var(--brand-primary);
  font-weight: 600;
}

.comparison-table th.highlight-col {
  background: rgba(66, 133, 244, 0.08);
}

/* ----- FAQ ----- */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--border-light);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  background: none;
  text-align: left;
  cursor: pointer;
}

.faq-question svg {
  width: 24px;
  height: 24px;
  color: var(--text-light);
  transition: var(--transition);
  flex-shrink: 0;
  margin-left: 16px;
}

.faq-item.open .faq-question svg {
  transform: rotate(180deg);
  color: var(--brand-primary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-item.open .faq-answer {
  max-height: 500px;
}

.faq-answer-inner {
  padding: 0 0 24px;
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

.faq-answer-inner p {
  margin-bottom: 12px;
}

/* ----- Download Page Specific ----- */
.download-hero {
  padding: calc(var(--header-height) + 60px) 0 60px;
  background: linear-gradient(135deg, #f0f4ff 0%, #e8f5e9 100%);
  text-align: center;
}

.download-hero-title {
  font-size: 2.8rem;
  font-weight: 800;
  margin-bottom: 16px;
}

.download-hero-desc {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 32px;
}

.download-main-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 48px;
  max-width: 640px;
  margin: 0 auto;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-light);
}

.download-main-card .platform-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 20px;
}

.download-main-card .platform-icon svg {
  width: 40px;
  height: 40px;
}

.download-meta {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-top: 20px;
  font-size: 0.88rem;
  color: var(--text-light);
}

.download-meta span {
  display: flex;
  align-items: center;
  gap: 6px;
}

.download-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.download-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 32px;
  text-align: center;
  transition: var(--transition);
}

.download-card:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(66, 133, 244, 0.2);
}

.download-card .platform-icon {
  margin: 0 auto 16px;
}

.download-card .platform-name {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.download-card .version-info {
  font-size: 0.85rem;
  color: var(--text-light);
  margin-bottom: 8px;
}

.download-card .system-req {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.5;
}

.download-card .install-steps {
  text-align: left;
  margin: 16px 0;
  padding: 16px;
  background: var(--bg-light);
  border-radius: var(--radius-sm);
}

.download-card .install-steps li {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
  padding-left: 20px;
  position: relative;
}

.download-card .install-steps li:last-child {
  margin-bottom: 0;
}

.download-card .install-steps li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  background: var(--brand-primary);
  border-radius: 50%;
}

/* ----- Guide Steps ----- */
.guide-steps {
  max-width: 800px;
  margin: 0 auto;
}

.guide-step {
  display: flex;
  gap: 24px;
  margin-bottom: 40px;
  align-items: flex-start;
}

.guide-step:last-child {
  margin-bottom: 0;
}

.step-number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--brand-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  font-weight: 800;
  flex-shrink: 0;
}

.step-content {
  flex: 1;
  padding-top: 4px;
}

.step-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.step-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ----- System Requirements ----- */
.sysreq-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.sysreq-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 28px;
}

.sysreq-card h4 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.sysreq-card h4 svg {
  width: 22px;
  height: 22px;
  color: var(--brand-primary);
}

.sysreq-card ul li {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
  line-height: 1.5;
}

/* ----- Changelog ----- */
.changelog-list {
  max-width: 800px;
  margin: 0 auto;
}

.changelog-item {
  display: flex;
  gap: 24px;
  padding: 28px 0;
  border-bottom: 1px solid var(--border-light);
}

.changelog-item:last-child {
  border-bottom: none;
}

.changelog-badge {
  flex-shrink: 0;
  width: 80px;
  text-align: center;
}

.changelog-version {
  display: inline-block;
  background: var(--brand-primary);
  color: #fff;
  padding: 6px 14px;
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.changelog-date {
  font-size: 0.8rem;
  color: var(--text-light);
}

.changelog-content h4 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.changelog-content ul li {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 6px;
  line-height: 1.6;
}

/* ----- SEO Page Specific ----- */
.seo-content {
  max-width: 800px;
  margin: 0 auto;
}

.seo-content h2 {
  font-size: 2rem;
  font-weight: 700;
  margin: 48px 0 20px;
  padding-top: 24px;
  border-top: 1px solid var(--border-light);
}

.seo-content h2:first-child {
  border-top: none;
  margin-top: 0;
  padding-top: 0;
}

.seo-content h3 {
  font-size: 1.35rem;
  font-weight: 700;
  margin: 32px 0 14px;
}

.seo-content p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 16px;
}

.seo-content ul, .seo-content ol {
  margin: 16px 0;
  padding-left: 24px;
}

.seo-content ul li, .seo-content ol li {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 10px;
}

.seo-content ul li {
  list-style: disc;
}

.seo-content ol li {
  list-style: decimal;
}

.seo-highlight {
  background: linear-gradient(135deg, #f0f4ff 0%, #e8f5e9 100%);
  border-radius: var(--radius-md);
  padding: 32px;
  margin: 32px 0;
  border: 1px solid var(--border-light);
}

.seo-highlight p {
  color: var(--text-primary);
  font-weight: 500;
}

.seo-cta-box {
  background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-primary-dark) 100%);
  border-radius: var(--radius-lg);
  padding: 48px;
  text-align: center;
  color: #fff;
  margin: 48px 0;
}

.seo-cta-box h3 {
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 12px;
  color: #fff;
}

.seo-cta-box p {
  font-size: 1.1rem;
  margin-bottom: 24px;
  opacity: 0.9;
  color: #fff;
}

.seo-cta-box .btn-secondary {
  background: #fff;
  color: var(--brand-primary);
  border: none;
  font-weight: 700;
}

.seo-cta-box .btn-secondary:hover {
  background: #f0f4ff;
  color: var(--brand-primary-dark);
}

/* ----- Security Badge ----- */
.security-badge {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--bg-light);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 24px 28px;
  max-width: 700px;
  margin: 0 auto;
}

.security-badge svg {
  width: 40px;
  height: 40px;
  color: var(--brand-secondary);
  flex-shrink: 0;
}

.security-badge h4 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.security-badge p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ----- Footer ----- */
.site-footer {
  background: var(--text-primary);
  color: #9aa0a6;
  padding: 48px 0 32px;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  text-align: center;
}

.footer-safety {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(52, 168, 83, 0.15);
  color: var(--brand-secondary);
  padding: 10px 20px;
  border-radius: 100px;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 20px;
}

.footer-safety svg {
  width: 18px;
  height: 18px;
}

.footer-text {
  font-size: 0.88rem;
  line-height: 1.7;
  max-width: 600px;
  margin: 0 auto;
}

.footer-text a {
  color: #bdc1c6;
  text-decoration: underline;
}

.footer-text a:hover {
  color: #fff;
}

/* ----- Scroll Animations ----- */
.animate-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ----- Responsive ----- */
@media (max-width: 1024px) {
  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-content {
    max-width: 100%;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-meta {
    justify-content: center;
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .platforms-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .detail-row {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .detail-row.reverse {
    direction: ltr;
  }

  .reviews-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .download-cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .sysreq-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  :root {
    --header-height: 64px;
  }

  .section-title {
    font-size: 1.8rem;
  }

  .hero-title {
    font-size: 2.2rem;
  }

  .features-grid,
  .platforms-grid,
  .stats-grid,
  .reviews-grid,
  .download-cards-grid,
  .sysreq-grid {
    grid-template-columns: 1fr;
  }

  .header-inner {
    flex-wrap: wrap;
    gap: 8px;
  }

  .main-nav {
    gap: 4px;
  }

  .nav-link {
    padding: 8px 14px;
    font-size: 0.88rem;
  }

  .btn-lg {
    padding: 14px 28px;
    font-size: 1rem;
  }

  .download-main-card {
    padding: 32px 24px;
  }

  .download-hero-title {
    font-size: 2rem;
  }

  .comparison-table th,
  .comparison-table td {
    padding: 12px 16px;
    font-size: 0.85rem;
  }

  .guide-step {
    flex-direction: column;
    gap: 12px;
  }

  .seo-cta-box {
    padding: 32px 24px;
  }

  .seo-cta-box h3 {
    font-size: 1.4rem;
  }
}

/* ----- Print Styles ----- */
@media print {
  .site-header,
  .hero-actions,
  .site-footer {
    display: none;
  }

  .section {
    padding: 20px 0;
  }
}