/* Modern WPS Office landing page CSS - Clean, Professional & High-Performance */

:root {
  --primary-color: #ff4a22;
  --primary-gradient: linear-gradient(135deg, #ff7a00 0%, #ff4a22 100%);
  --secondary-gradient: linear-gradient(135deg, #4f46e5 0%, #3b82f6 100%);
  --dark-color: #0f172a;
  --dark-light: #1e293b;
  --light-bg: #f8fafc;
  --border-color: #e2e8f0;
  --text-main: #334155;
  --text-muted: #64748b;
  --white: #ffffff;
  --accent-color: #10b981;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

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

html {
  scroll-behavior: smooth;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Microsoft YaHei", "PingFang SC", sans-serif;
  color: var(--text-main);
  background-color: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
  transition: all 0.2s ease;
}

button {
  font-family: inherit;
  border: none;
  cursor: pointer;
  transition: all 0.25s ease;
  outline: none;
}

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header & Navigation */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
  transition: all 0.3s ease;
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  color: var(--dark-color);
}

.logo-icon {
  width: 36px;
  height: 36px;
}

.nav-menu {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 32px;
}

.nav-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-main);
  padding: 6px 0;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-color);
  transition: width 0.2s ease;
}

.nav-link:hover {
  color: var(--primary-color);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-link.active {
  color: var(--primary-color);
  font-weight: 700;
}

.nav-link.active::after {
  width: 100%;
}

.nav-btn-wrapper {
  display: flex;
  align-items: center;
}

.nav-btn {
  background: var(--primary-gradient);
  color: var(--white);
  padding: 10px 20px;
  border-radius: 9999px;
  font-size: 14px;
  font-weight: 600;
  box-shadow: 0 4px 10px rgba(255, 74, 34, 0.2);
}

.nav-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 15px rgba(255, 74, 34, 0.3);
}

/* Hero Section */
.hero {
  position: relative;
  padding: 100px 0 80px 0;
  background: radial-gradient(circle at 80% 20%, rgba(255, 122, 0, 0.08) 0%, rgba(255, 74, 34, 0.03) 50%, rgba(255, 255, 255, 0) 100%), var(--light-bg);
  overflow: hidden;
}

.hero-content {
  text-align: center;
  max-width: 850px;
  margin: 0 auto;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background-color: rgba(255, 74, 34, 0.08);
  color: var(--primary-color);
  padding: 6px 16px;
  border-radius: 9999px;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 24px;
  border: 1px solid rgba(255, 74, 34, 0.15);
}

.hero-title {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.2;
  color: var(--dark-color);
  margin-bottom: 20px;
  letter-spacing: -1px;
}

.hero-title span {
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto 40px auto;
  line-height: 1.6;
}

.hero-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.btn-primary {
  background: var(--primary-gradient);
  color: var(--white);
  padding: 16px 36px;
  font-size: 16px;
  font-weight: 600;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 8px 24px rgba(255, 74, 34, 0.25);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(255, 74, 34, 0.35);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-outline {
  background: var(--white);
  color: var(--dark-color);
  border: 1px solid var(--border-color);
  padding: 16px 36px;
  font-size: 16px;
  font-weight: 600;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: var(--shadow-sm);
}

.btn-outline:hover {
  background-color: var(--light-bg);
  border-color: var(--text-muted);
  transform: translateY(-2px);
}

.hero-meta {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 24px;
  font-size: 14px;
  color: var(--text-muted);
  flex-wrap: wrap;
}

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

.meta-icon {
  color: var(--accent-color);
  width: 16px;
  height: 16px;
}

/* Characteristics / Highlights Section */
.section {
  padding: 90px 0;
  border-bottom: 1px solid var(--border-color);
}

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

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 60px auto;
}

.section-tag {
  color: var(--primary-color);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 12px;
  display: block;
}

.section-title {
  font-size: 34px;
  font-weight: 800;
  color: var(--dark-color);
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 16px;
  color: var(--text-muted);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.card {
  background-color: var(--white);
  padding: 36px;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: var(--shadow-sm);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(255, 74, 34, 0.2);
}

.card-icon-box {
  width: 56px;
  height: 56px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  background-color: rgba(255, 74, 34, 0.05);
  color: var(--primary-color);
}

.card:nth-child(even) .card-icon-box {
  background-color: rgba(79, 70, 229, 0.05);
  color: #4f46e5;
}

.card-icon {
  width: 32px;
  height: 32px;
}

.card-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--dark-color);
  margin-bottom: 14px;
}

.card-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Feature Details Area (Row layout alternated) */
.feature-row {
  display: flex;
  align-items: center;
  gap: 60px;
  margin-bottom: 80px;
}

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

.feature-row.reverse {
  flex-direction: row-reverse;
}

.feature-info {
  flex: 1;
}

.feature-media {
  flex: 1.1;
  background-color: var(--white);
  border-radius: 16px;
  padding: 30px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.feature-media-bg {
  position: absolute;
  top: -20%;
  right: -20%;
  width: 60%;
  height: 60%;
  background: radial-gradient(circle, rgba(255, 74, 34, 0.05) 0%, rgba(255, 255, 255, 0) 70%);
  z-index: 1;
}

.feature-tag-pill {
  display: inline-block;
  background-color: rgba(255, 74, 34, 0.05);
  color: var(--primary-color);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 9999px;
  margin-bottom: 16px;
}

.feature-row:nth-child(even) .feature-tag-pill {
  background-color: rgba(79, 70, 229, 0.05);
  color: #4f46e5;
}

.feature-title-sub {
  font-size: 28px;
  font-weight: 800;
  color: var(--dark-color);
  margin-bottom: 20px;
  line-height: 1.3;
}

.feature-text {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 24px;
}

.feature-bullets {
  list-style: none;
}

.feature-bullet-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--text-main);
  margin-bottom: 12px;
}

.feature-bullet-item svg {
  color: var(--accent-color);
  width: 18px;
  height: 18px;
  margin-top: 3px;
  flex-shrink: 0;
}

/* User Reviews Section */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.review-card {
  background-color: var(--white);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 30px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 100%;
  transition: all 0.3s ease;
}

.review-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(255, 74, 34, 0.15);
}

.review-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.review-user {
  display: flex;
  align-items: center;
  gap: 12px;
}

.avatar-placeholder {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, #cbd5e1 0%, #94a3b8 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 700;
  font-size: 16px;
}

.user-meta {
  display: flex;
  flex-direction: column;
}

.user-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--dark-color);
}

.user-role {
  font-size: 12px;
  color: var(--text-muted);
}

.review-stars {
  display: flex;
  color: #fbbf24;
  gap: 2px;
}

.review-stars svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

.review-text {
  font-size: 14px;
  color: var(--text-main);
  line-height: 1.6;
  font-style: italic;
}

/* Data Statistics */
.stats-section {
  background: var(--dark-color);
  color: var(--white);
  padding: 70px 0;
  position: relative;
  overflow: hidden;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  text-align: center;
}

.stat-item {
  position: relative;
}

.stat-number {
  font-size: 42px;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 8px;
  background: linear-gradient(135deg, #ffffff 0%, #cbd5e1 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-label {
  font-size: 14px;
  color: #94a3b8;
  font-weight: 500;
  letter-spacing: 0.5px;
}

/* Comparisons Area */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  background-color: var(--white);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 14px;
}

.comparison-table th {
  background-color: var(--light-bg);
  color: var(--dark-color);
  font-weight: 700;
  padding: 18px 24px;
  border-bottom: 2px solid var(--border-color);
}

.comparison-table th.highlight {
  background-color: rgba(255, 74, 34, 0.03);
  color: var(--primary-color);
}

.comparison-table td {
  padding: 16px 24px;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-main);
  vertical-align: middle;
}

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

.comparison-table tr:hover {
  background-color: rgba(248, 250, 252, 0.6);
}

.comp-feature-name {
  font-weight: 600;
  color: var(--dark-color);
}

.comp-badge-wps {
  background-color: rgba(255, 74, 34, 0.08);
  color: var(--primary-color);
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 12px;
  display: inline-block;
}

.comp-icon-yes {
  color: var(--accent-color);
  width: 20px;
  height: 20px;
}

.comp-icon-no {
  color: #ef4444;
  width: 18px;
  height: 18px;
}

/* FAQs Section */
.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.faq-item {
  background-color: var(--white);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 24px;
  transition: all 0.25s ease;
}

.faq-item:hover {
  border-color: rgba(255, 74, 34, 0.2);
  box-shadow: var(--shadow-md);
}

.faq-q {
  font-size: 16px;
  font-weight: 700;
  color: var(--dark-color);
  margin-bottom: 12px;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.faq-q-icon {
  background: var(--primary-gradient);
  color: var(--white);
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  flex-shrink: 0;
  margin-top: 2px;
}

.faq-item:nth-child(even) .faq-q-icon {
  background: var(--secondary-gradient);
}

.faq-a {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  padding-left: 30px;
}

/* Download Main Page Custom Styles */
.download-hero {
  padding: 80px 0 60px 0;
  background: radial-gradient(circle at 10% 20%, rgba(59, 130, 246, 0.05) 0%, rgba(255, 255, 255, 0) 60%), var(--light-bg);
  text-align: center;
}

.dl-main-card {
  max-width: 720px;
  margin: 40px auto 0 auto;
  background-color: var(--white);
  border-radius: 16px;
  padding: 44px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-xl);
  position: relative;
}

.dl-main-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background-color: #ef4444;
  color: var(--white);
  padding: 4px 16px;
  border-radius: 9999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
  box-shadow: 0 4px 10px rgba(239, 68, 68, 0.2);
}

.dl-main-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 24px;
}

.dl-main-title {
  font-size: 28px;
  font-weight: 800;
  color: var(--dark-color);
}

.dl-main-meta {
  display: flex;
  justify-content: center;
  gap: 24px;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 32px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 16px;
}

.dl-main-btn {
  background: var(--primary-gradient);
  color: var(--white);
  width: 100%;
  max-width: 440px;
  padding: 18px 0;
  font-size: 18px;
  font-weight: 700;
  border-radius: 10px;
  box-shadow: 0 10px 25px rgba(255, 74, 34, 0.3);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 20px;
}

.dl-main-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(255, 74, 34, 0.4);
}

.dl-main-requirements {
  font-size: 12px;
  color: var(--text-muted);
}

/* Multi-Platform Download Dedicated Cards */
.platform-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.platform-card {
  background-color: var(--white);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 30px;
  box-shadow: var(--shadow-sm);
  transition: all 0.25s ease;
  display: flex;
  flex-direction: column;
}

.platform-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-color);
}

.plat-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.plat-icon-box {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background-color: var(--light-bg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.plat-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--dark-color);
}

.plat-info {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.plat-btn {
  background: var(--dark-color);
  color: var(--white);
  padding: 12px 0;
  font-size: 14px;
  font-weight: 600;
  border-radius: 6px;
  width: 100%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
}

.plat-btn:hover {
  background-color: var(--dark-light);
  transform: translateY(-1px);
}

.plat-steps {
  font-size: 12px;
  color: var(--text-muted);
  border-top: 1px solid var(--border-color);
  padding-top: 14px;
}

.plat-steps-title {
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 6px;
}

.plat-step-list {
  list-style: decimal;
  padding-left: 16px;
}

.plat-step-list li {
  margin-bottom: 4px;
}

/* Installation Guides (Steps UI) */
.guide-tabs {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 40px;
}

.guide-step-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.step-card {
  position: relative;
  background-color: var(--white);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 30px;
  box-shadow: var(--shadow-sm);
  height: 100%;
}

.step-num {
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: 44px;
  font-weight: 900;
  color: rgba(255, 74, 34, 0.08);
  line-height: 1;
}

.step-card:nth-child(even) .step-num {
  color: rgba(79, 70, 229, 0.08);
}

.step-icon-box {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background-color: rgba(255, 74, 34, 0.05);
  color: var(--primary-color);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.step-card:nth-child(even) .step-icon-box {
  background-color: rgba(79, 70, 229, 0.05);
  color: #4f46e5;
}

.step-card-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--dark-color);
  margin-bottom: 10px;
}

.step-card-text {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* System Requirements Specs */
.specs-table {
  width: 100%;
  border-collapse: collapse;
}

.specs-table td {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
  font-size: 14px;
}

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

.specs-label {
  font-weight: 700;
  color: var(--dark-color);
  width: 25%;
}

.specs-val {
  color: var(--text-main);
}

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

.log-item {
  position: relative;
  padding-left: 40px;
  padding-bottom: 30px;
}

.log-item:last-child {
  padding-bottom: 0;
}

.log-item::before {
  content: '';
  position: absolute;
  left: 6px;
  top: 0;
  bottom: 0;
  width: 2px;
  background-color: var(--border-color);
}

.log-item:last-child::before {
  display: none;
}

.log-dot {
  position: absolute;
  left: 0;
  top: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background-color: var(--primary-color);
  border: 3px solid var(--white);
  box-shadow: 0 0 0 3px rgba(255, 74, 34, 0.15);
}

.log-item:nth-child(even) .log-dot {
  background-color: #4f46e5;
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
}

.log-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.log-ver {
  font-size: 18px;
  font-weight: 700;
  color: var(--dark-color);
}

.log-date {
  font-size: 13px;
  color: var(--text-muted);
}

.log-bullets {
  list-style: none;
}

.log-bullet-li {
  font-size: 14px;
  color: var(--text-main);
  margin-bottom: 6px;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.log-bullet-li::before {
  content: '•';
  color: var(--primary-color);
  font-weight: bold;
}

/* Safety Guarantee Banner */
.safety-box {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.05) 0%, rgba(5, 150, 105, 0.02) 100%);
  border: 1px solid rgba(16, 185, 129, 0.15);
  border-radius: 12px;
  padding: 30px;
  display: flex;
  align-items: center;
  gap: 24px;
}

.safety-icon-container {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background-color: rgba(16, 185, 129, 0.1);
  color: var(--accent-color);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.safety-text-box h4 {
  font-size: 18px;
  font-weight: 700;
  color: var(--dark-color);
  margin-bottom: 6px;
}

.safety-text-box p {
  font-size: 14px;
  color: var(--text-muted);
}

/* Footer Styles */
.footer {
  background-color: var(--dark-color);
  color: #94a3b8;
  padding: 50px 0;
  font-size: 14px;
  border-top: 1px solid var(--dark-light);
}

.footer-content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.footer-safety {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent-color);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.footer-copyright {
  font-size: 12px;
  line-height: 1.8;
  color: #64748b;
  margin-top: 16px;
  border-top: 1px solid var(--dark-light);
  padding-top: 16px;
}

/* SEO Page Custom Content & Layouts */
.seo-header-area {
  padding: 80px 0 50px 0;
  background: radial-gradient(circle at 90% 80%, rgba(255, 122, 0, 0.04) 0%, rgba(255, 255, 255, 0) 60%), var(--white);
  border-bottom: 1px solid var(--border-color);
}

.seo-rich-layout {
  display: grid;
  grid-template-columns: 2.5fr 1fr;
  gap: 40px;
}

.seo-article {
  background-color: var(--white);
}

.seo-aside {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.seo-sidebar-card {
  background-color: var(--light-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 24px;
}

.seo-sidebar-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--dark-color);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--primary-color);
  display: inline-block;
}

.seo-h2 {
  font-size: 24px;
  font-weight: 800;
  color: var(--dark-color);
  margin: 36px 0 16px 0;
}

.seo-h2:first-child {
  margin-top: 0;
}

.seo-p {
  font-size: 15px;
  color: var(--text-main);
  line-height: 1.8;
  margin-bottom: 20px;
  text-align: justify;
}

.seo-p strong {
  color: var(--dark-color);
}

.seo-cta-banner {
  background: var(--primary-gradient);
  color: var(--white);
  border-radius: 12px;
  padding: 40px;
  text-align: center;
  margin-top: 40px;
  box-shadow: 0 10px 25px rgba(255, 74, 34, 0.2);
}

.seo-cta-title {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 12px;
}

.seo-cta-desc {
  font-size: 15px;
  opacity: 0.9;
  margin-bottom: 24px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.seo-cta-btn {
  background-color: var(--white);
  color: var(--primary-color);
  padding: 14px 32px;
  font-size: 15px;
  font-weight: 700;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: var(--shadow-md);
}

.seo-cta-btn:hover {
  background-color: var(--light-bg);
  transform: translateY(-2px);
}

.seo-list-vertical {
  list-style: none;
  margin-bottom: 24px;
}

.seo-list-vertical li {
  font-size: 14px;
  color: var(--text-main);
  padding: 10px 0;
  border-bottom: 1px dashed var(--border-color);
  display: flex;
  align-items: center;
  gap: 8px;
}

.seo-list-vertical li::before {
  content: '✓';
  color: var(--accent-color);
  font-weight: bold;
}

/* Keyframes for loading rotation */
@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
  .grid-3, .reviews-grid, .platform-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-4, .guide-step-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .feature-row {
    flex-direction: column !important;
    gap: 40px;
  }
  .seo-rich-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 34px;
  }
  .hero-desc {
    font-size: 16px;
  }
  .section-title {
    font-size: 28px;
  }
  .grid-3, .grid-4, .grid-2, .reviews-grid, .platform-grid, .guide-step-grid, .faq-grid {
    grid-template-columns: 1fr;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  .nav-menu {
    gap: 16px;
  }
  .header-container {
    padding: 0 16px;
  }
  .logo-link {
    font-size: 18px;
  }
  .nav-btn {
    padding: 8px 14px;
    font-size: 13px;
  }
  .specs-label {
    width: 35%;
  }
}