/* ============================================
   Bitpie 比特派官网 - 产品总览中心
   右侧导航 + 左侧内容
   ============================================ */

:root {
  /* 主色 */
  --color-primary: #1a365d;
  --color-primary-dark: #0f2744;
  --color-primary-light: #2c5282;
  
  /* 背景 */
  --color-bg: #f8fafc;
  --color-bg-section: #ffffff;
  --color-bg-nav: #0f2744;
  --color-bg-nav-hover: rgba(255, 255, 255, 0.06);
  --color-bg-nav-active: rgba(66, 153, 225, 0.15);
  
  /* 文字 */
  --color-text: #334155;
  --color-text-light: #64748b;
  --color-text-heading: #0f172a;
  --color-text-nav: rgba(255, 255, 255, 0.9);
  --color-text-nav-muted: rgba(255, 255, 255, 0.6);
  
  /* 点缀 */
  --color-accent: #0ea5e9;
  --color-accent-light: #38bdf8;
  --color-accent-muted: #7dd3fc;
  --color-silver: #94a3b8;
  --color-border: #e2e8f0;
  
  /* 尺寸 */
  --nav-width: 260px;
  --nav-width-collapsed: 56px;
  --content-max-width: 900px;
  --section-padding-y: 80px;
  --section-padding-x: 48px;
  
  /* 过渡 */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 重置与基础 */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
}

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

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-accent-light);
}

/* 页面布局 */
.page-wrapper {
  display: flex;
  min-height: 100vh;
}

/* ============================================
   右侧导航
   ============================================ */
.nav-sidebar {
  position: fixed;
  top: 0;
  right: 0;
  width: var(--nav-width);
  height: 100vh;
  background: var(--color-bg-nav);
  color: var(--color-text-nav);
  display: flex;
  flex-direction: column;
  z-index: 100;
  overflow-y: auto;
  transition: transform var(--transition-smooth), width var(--transition-normal);
}

.nav-sidebar.collapsed {
  transform: translateX(100%);
}

.nav-header {
  padding: 28px 24px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.nav-logo-icon {
  height: 36px;
  width: auto;
  max-width: 140px;
  flex-shrink: 0;
  opacity: 0.95;
  object-fit: contain;
}

.nav-brand {
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.nav-menu {
  flex: 1;
  padding: 24px 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-link {
  display: block;
  padding: 10px 16px;
  color: var(--color-text-nav-muted);
  font-size: 0.9rem;
  border-radius: 8px;
  transition: color var(--transition-fast), background var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-text-nav);
  background: var(--color-bg-nav-hover);
}

.nav-link.active {
  color: var(--color-accent-light);
  background: var(--color-bg-nav-active);
  font-weight: 500;
}

.nav-footer {
  padding: 20px 24px 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.nav-tagline {
  font-size: 0.8rem;
  color: var(--color-text-nav-muted);
  margin-bottom: 12px;
  line-height: 1.5;
}

.nav-contact-link {
  font-size: 0.85rem;
  color: var(--color-accent-muted);
}

.nav-contact-link:hover {
  color: var(--color-accent-light);
}

/* 移动端导航切换按钮 */
.nav-toggle {
  display: none;
  position: fixed;
  top: 20px;
  right: 20px;
  width: 44px;
  height: 44px;
  background: var(--color-bg-nav);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  z-index: 101;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-text-nav);
  transition: var(--transition-fast);
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ============================================
   左侧主内容区
   ============================================ */
.content-main {
  flex: 1;
  margin-right: var(--nav-width);
  min-height: 100vh;
}

/* Section 通用 */
.section {
  padding: var(--section-padding-y) var(--section-padding-x);
  background: var(--color-bg-section);
  border-bottom: 1px solid var(--color-border);
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.section.visible {
  opacity: 1;
  transform: translateY(0);
}

.section:nth-child(even) {
  background: var(--color-bg);
}

.section-inner {
  max-width: var(--content-max-width);
  margin: 0 auto;
}

.section-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 32px;
}

.section-icon {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  color: var(--color-accent);
}

.section-title {
  font-size: 1.65rem;
  font-weight: 600;
  color: var(--color-text-heading);
}

/* ============================================
   1. 页面总览
   ============================================ */
.section-overview {
  padding-top: 100px;
  background: linear-gradient(180deg, #ffffff 0%, var(--color-bg) 100%);
}

.overview-header {
  margin-bottom: 32px;
}

.page-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-text-heading);
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.overview-summary {
  font-size: 1.05rem;
  color: var(--color-text);
  line-height: 1.8;
  max-width: 680px;
}

.overview-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 48px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  font-size: 0.95rem;
  font-weight: 500;
  border-radius: 8px;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  border: none;
}

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

.btn-secondary {
  background: var(--color-accent);
  color: #fff;
  border: none;
}

.btn-secondary:hover {
  background: var(--color-accent-light);
  color: #fff;
}

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

.btn-outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.overview-visual {
  max-width: 70%;
  margin: 0 auto;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(15, 39, 68, 0.08);
}

.overview-img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  background: var(--color-bg);
}

/* ============================================
   2. 钱包总览
   ============================================ */
.wallet-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.wallet-text p {
  margin-bottom: 18px;
  color: var(--color-text);
  line-height: 1.75;
}

.wallet-text p:last-child {
  margin-bottom: 0;
}

.wallet-visual {
  max-width: 65%;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(15, 39, 68, 0.06);
}

.wallet-img {
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  background: var(--color-bg);
}

/* App 海报轮播 */
.app-carousel-wrap {
  margin-top: 48px;
}

.carousel-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-text-heading);
  margin-bottom: 20px;
}

.app-carousel {
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  padding: 8px 0;
}

.app-carousel-track {
  display: flex;
  gap: 20px;
  padding: 0 4px;
}

.app-carousel-track img {
  flex-shrink: 0;
  width: 160px;
  height: auto;
  aspect-ratio: 9 / 16;
  object-fit: contain;
  border-radius: 12px;
  background: var(--color-bg);
  box-shadow: 0 4px 16px rgba(15, 39, 68, 0.06);
}

/* ============================================
   3. 链系支持
   ============================================ */
.chains-intro {
  margin-bottom: 36px;
}

.chains-intro p {
  color: var(--color-text);
  line-height: 1.75;
}

.chains-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.chains-detail h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-text-heading);
  margin-bottom: 16px;
}

.chains-detail ul {
  list-style: none;
  margin-bottom: 20px;
}

.chains-detail li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 10px;
  color: var(--color-text);
  line-height: 1.6;
}

.chains-detail li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
}

.chains-detail p {
  color: var(--color-text-light);
  font-size: 0.95rem;
  line-height: 1.7;
}

.chains-visual {
  max-width: 60%;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(15, 39, 68, 0.06);
}

.chains-img {
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 4;
  object-fit: contain;
  background: var(--color-bg);
}

/* ============================================
   4. 功能编组
   ============================================ */
.features-intro {
  margin-bottom: 40px;
  color: var(--color-text);
  line-height: 1.75;
}

.features-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  margin-bottom: 56px;
}

.features-group-b {
  direction: rtl;
}

.features-group-b > * {
  direction: ltr;
}

.features-visual {
  max-width: 60%;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(15, 39, 68, 0.06);
}

.feature-img {
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  background: var(--color-bg);
}

.features-list h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-text-heading);
  margin-bottom: 18px;
}

.features-list ul {
  list-style: none;
}

.features-list li {
  display: flex;
  align-items: flex-start;
  margin-bottom: 14px;
  color: var(--color-text);
  line-height: 1.65;
}

.features-list .li-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  margin-right: 12px;
  margin-top: 2px;
}

.features-list .li-icon img {
  width: 100%;
  height: 100%;
  filter: invert(63%) sepia(98%) saturate(718%) hue-rotate(169deg) brightness(101%) contrast(101%);
}

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

.feature-card {
  padding: 24px 20px;
  background: var(--color-bg);
  border-radius: 10px;
  border: 1px solid var(--color-border);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.feature-card:hover {
  border-color: var(--color-accent-muted);
  box-shadow: 0 4px 16px rgba(14, 165, 233, 0.08);
}

.feature-card-icon {
  width: 32px;
  height: 32px;
  margin-bottom: 14px;
  color: var(--color-accent);
}

.feature-card h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text-heading);
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.55;
}

/* ============================================
   5. 市场观察
   ============================================ */
.market-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.market-text p {
  margin-bottom: 18px;
  color: var(--color-text);
  line-height: 1.75;
}

.market-text p:last-child {
  margin-bottom: 0;
}

.market-visual {
  max-width: 60%;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(15, 39, 68, 0.06);
}

.market-img {
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  background: var(--color-bg);
}

/* ============================================
   6. 发现入口
   ============================================ */
.discovery-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
  margin-bottom: 40px;
}

.discovery-visual {
  max-width: 60%;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(15, 39, 68, 0.06);
}

.discovery-img {
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  background: var(--color-bg);
}

.discovery-text p {
  margin-bottom: 18px;
  color: var(--color-text);
  line-height: 1.75;
}

.discovery-text p:last-child {
  margin-bottom: 0;
}

.discovery-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.discovery-card {
  padding: 24px 20px;
  background: var(--color-bg);
  border-radius: 10px;
  border: 1px solid var(--color-border);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.discovery-card:hover {
  border-color: var(--color-accent-muted);
  box-shadow: 0 4px 16px rgba(14, 165, 233, 0.08);
}

.discovery-card-icon {
  width: 32px;
  height: 32px;
  margin-bottom: 14px;
  color: var(--color-accent);
}

.discovery-card h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text-heading);
  margin-bottom: 8px;
}

.discovery-card p {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.55;
}

/* ============================================
   7. 安全管理
   ============================================ */
.section-security {
  background: linear-gradient(180deg, var(--color-bg) 0%, #eef4fb 100%);
}

.security-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
  align-items: start;
}

.security-visual {
  max-width: 55%;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(15, 39, 68, 0.08);
}

.security-img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  background: #fff;
}

.security-content p {
  margin-bottom: 24px;
  color: var(--color-text);
  line-height: 1.75;
}

.security-content h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-text-heading);
  margin: 24px 0 14px;
}

.security-content h3:first-of-type {
  margin-top: 0;
}

.security-content ul {
  list-style: none;
}

.security-content li {
  display: flex;
  align-items: flex-start;
  margin-bottom: 10px;
  color: var(--color-text);
  line-height: 1.65;
}

.security-content .inline-icon {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  margin-right: 10px;
  margin-top: 3px;
  filter: invert(63%) sepia(98%) saturate(718%) hue-rotate(169deg) brightness(101%) contrast(101%);
}

/* ============================================
   8. 帮助说明
   ============================================ */
.help-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
  margin-bottom: 40px;
}

.help-terms h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-text-heading);
  margin-bottom: 20px;
}

.help-terms dl {
  margin: 0;
}

.help-terms dt {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-top: 18px;
  margin-bottom: 6px;
}

.help-terms dt:first-child {
  margin-top: 0;
}

.help-terms dd {
  margin: 0 0 0 0;
  padding: 0;
  font-size: 0.95rem;
  color: var(--color-text);
  line-height: 1.7;
}

.help-visual {
  max-width: 60%;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(15, 39, 68, 0.06);
}

.help-img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  background: var(--color-bg);
}

.help-usage {
  padding: 28px 32px;
  background: var(--color-bg);
  border-radius: 10px;
  border-left: 4px solid var(--color-accent);
}

.help-usage h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-text-heading);
  margin-bottom: 12px;
}

.help-usage p {
  color: var(--color-text);
  line-height: 1.75;
}

/* ============================================
   9. 问题解答
   ============================================ */
.qa-list {
  max-width: 720px;
}

.qa-item {
  border-bottom: 1px solid var(--color-border);
}

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

.qa-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  background: none;
  border: none;
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text-heading);
  text-align: left;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.qa-question:hover {
  color: var(--color-accent);
}

.qa-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--color-accent);
  transition: transform var(--transition-fast);
}

.qa-item.active .qa-icon {
  transform: rotate(45deg);
}

.qa-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-smooth);
}

.qa-item.active .qa-answer {
  max-height: 800px;
}

.qa-answer p {
  padding: 0 0 20px 0;
  padding-left: 0;
  color: var(--color-text);
  font-size: 0.95rem;
  line-height: 1.75;
}

/* ============================================
   10. 信息联络
   ============================================ */
.contact-intro {
  margin-bottom: 36px;
}

.contact-intro p {
  color: var(--color-text);
  line-height: 1.75;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  margin-bottom: 40px;
}

.contact-block {
  padding: 24px;
  background: var(--color-bg);
  border-radius: 10px;
  border: 1px solid var(--color-border);
}

.contact-block h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-text-heading);
  margin-bottom: 12px;
}

.contact-block p,
.contact-block li {
  font-size: 0.95rem;
  color: var(--color-text);
  line-height: 1.7;
}

.contact-block.contact-info {
  grid-column: 1 / -1;
}

.contact-info ul {
  list-style: none;
}

.contact-info li {
  margin-bottom: 8px;
}

.contact-info li:last-child {
  margin-bottom: 0;
}

.contact-visual {
  max-width: 70%;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(15, 39, 68, 0.06);
}

.contact-img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  background: var(--color-bg);
}

.contact-block-icon {
  width: 28px;
  height: 28px;
  margin-bottom: 12px;
  color: var(--color-accent);
}

/* ============================================
   页脚
   ============================================ */
.page-footer {
  background: var(--color-primary-dark);
  color: var(--color-text-nav);
  padding: 56px var(--section-padding-x) 32px;
  margin-top: 0;
  margin-right: var(--nav-width);
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.footer-main {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-logo {
  height: 40px;
  width: auto;
  max-width: 160px;
  object-fit: contain;
}

.footer-brand-text {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.footer-brand-text strong {
  font-size: 1.15rem;
}

.footer-brand-text span {
  font-size: 0.85rem;
  color: var(--color-text-nav-muted);
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.footer-col h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--color-text-nav);
}

.footer-col ul {
  list-style: none;
}

.footer-col li {
  margin-bottom: 10px;
  font-size: 0.9rem;
}

.footer-col a {
  color: var(--color-text-nav-muted);
  transition: color var(--transition-fast);
}

.footer-col a:hover {
  color: var(--color-accent-light);
}

.footer-bottom {
  padding-top: 28px;
  text-align: center;
}

.footer-copyright {
  font-size: 0.9rem;
  color: var(--color-text-nav-muted);
  margin-bottom: 12px;
}

.footer-notice {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
  line-height: 1.6;
  max-width: 700px;
  margin: 0 auto;
}

.footer-notice a {
  color: var(--color-accent-muted);
}

.footer-notice a:hover {
  color: var(--color-accent-light);
}

/* ============================================
   响应式
   ============================================ */
@media (max-width: 1200px) {
  .features-cards {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 992px) {
  .footer-main {
    grid-template-columns: 1fr;
  }

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

  .nav-sidebar {
    width: 280px;
    transform: translateX(100%);
  }

  .nav-sidebar.open {
    transform: translateX(0);
  }

  .content-main,
  .page-footer {
    margin-right: 0;
  }

  .nav-toggle {
    display: flex;
  }

  .wallet-content,
  .chains-layout,
  .market-content,
  .discovery-content,
  .security-layout,
  .help-content {
    grid-template-columns: 1fr;
  }

  .features-group,
  .features-group-b {
    grid-template-columns: 1fr;
    direction: ltr;
  }

  .features-group-b .features-visual {
    order: -1;
  }

  .features-cards {
    grid-template-columns: 1fr;
  }

  .discovery-cards {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .contact-block.contact-info {
    grid-column: 1;
  }
}

@media (max-width: 768px) {
  .footer-main {
    gap: 32px;
    padding-bottom: 32px;
  }

  .footer-links {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .page-footer {
    padding: 40px 24px 24px;
  }

  :root {
    --section-padding-y: 56px;
    --section-padding-x: 24px;
  }

  .nav-logo-icon {
    width: 28px;
    height: 28px;
  }

  .section-overview {
    padding-top: 80px;
  }

  .page-title {
    font-size: 1.6rem;
  }

  .overview-actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

  .section-title {
    font-size: 1.4rem;
  }

  .overview-visual,
  .wallet-visual,
  .chains-visual,
  .market-visual,
  .discovery-visual,
  .features-visual,
  .security-visual,
  .help-visual,
  .contact-visual {
    max-width: 100%;
  }

  .app-carousel-track img {
    width: 120px;
  }
}

@media (max-width: 480px) {
  .nav-sidebar {
    width: 100%;
  }

  .overview-summary {
    font-size: 1rem;
  }
}