@charset "UTF-8";
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: #343a40;
  background: #f8f9fa;
  line-height: 1.8;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: all 0.3s ease;
}

ul,
ol {
  list-style: none;
}

/* ========== 顶部导航 ========== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(13, 27, 42, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  transition: all 0.3s ease;
}

.navbar.scrolled {
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.16);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.4rem;
  font-weight: 800;
  color: #ffffff;
}

.nav-logo .logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, #1a73e8, #00c9a7);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: white;
  font-weight: 900;
}

.nav-links {
  display: flex;
  gap: 28px;
  align-items: center;
}

.nav-links a {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.9rem;
  font-weight: 500;
  position: relative;
  padding: 4px 0;
}

.nav-links a:hover {
  color: #ffffff;
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: #00c9a7;
  transition: all 0.3s ease;
  border-radius: 2px;
}

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

.nav-cta {
  background: linear-gradient(135deg, #1a73e8, #4a90d9);
  color: #ffffff !important;
  padding: 8px 20px !important;
  border-radius: 24px;
  font-weight: 600 !important;
  font-size: 0.85rem !important;
}

.nav-cta::after {
  display: none !important;
}

.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 15px rgba(26, 115, 232, 0.4);
}

/* 移动端菜单按钮 */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 5px;
  z-index: 1001;
}

.menu-toggle span {
  width: 24px;
  height: 2.5px;
  background: #ffffff;
  border-radius: 2px;
  transition: all 0.3s ease;
}

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

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

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

/* ========== Hero 区域 ========== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #0d1b2a 0%, #1b2d45 40%, #0d1b2a 100%);
  overflow: hidden;
  padding: 80px 20px 60px;
}

.hero::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(26, 115, 232, 0.15) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 8s ease-in-out infinite;
}

.hero::after {
  content: "";
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0, 201, 167, 0.1) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 10s ease-in-out infinite reverse;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0px) rotate(0deg);
  }
  50% {
    transform: translateY(-30px) rotate(5deg);
  }
}
/* 粒子背景 */
.particles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: 0;
}

.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: rgba(26, 115, 232, 0.3);
  border-radius: 50%;
  animation: particleFloat linear infinite;
}

@keyframes particleFloat {
  0% {
    transform: translateY(100vh) rotate(0deg);
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  90% {
    opacity: 1;
  }
  100% {
    transform: translateY(-100px) rotate(720deg);
    opacity: 0;
  }
}
.hero-content {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-text h1 {
  font-size: 2.6rem;
  font-weight: 900;
  color: #ffffff;
  line-height: 1.2;
  margin-bottom: 20px;
}

.hero-text h1 .highlight {
  display: inline-flex;
  font-size: 3rem;
  margin-bottom: 5px;
  background: linear-gradient(135deg, #1a73e8, #00c9a7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-text p {
  font-size: 1.15rem;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 36px;
  max-width: 520px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 42px;
  border-radius: 30px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  border: none;
  font-family: inherit;
}

.btn-primary {
  background: linear-gradient(135deg, #1a73e8, #4a90d9);
  color: #ffffff;
  box-shadow: 0 4px 20px rgba(26, 115, 232, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 30px rgba(26, 115, 232, 0.5);
}

.btn-outline {
  background: transparent;
  color: #ffffff;
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
  border-color: #00c9a7;
  color: #00c9a7;
  transform: translateY(-2px);
}

.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 48px;
}

.stat-item {
  text-align: left;
}

.stat-number {
  font-size: 2rem;
  font-weight: 800;
  color: #ffffff;
}

.stat-label {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
  margin-top: 4px;
}

.hero-image {
  position: relative;
}

.hero-image .main-img {
  border-radius: 20px;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.16);
  width: 100%;
  aspect-ratio: 4/3;
  -o-object-fit: cover;
     object-fit: cover;
}

.hero-image .floating-card {
  position: absolute;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 12px;
  padding: 16px 20px;
  color: #ffffff;
  animation: floatCard 4s ease-in-out infinite;
}

.floating-card.card-1 {
  top: -20px;
  right: -10px;
  animation-delay: 0s;
}

.floating-card.card-2 {
  bottom: 30px;
  left: -20px;
  animation-delay: 2s;
}

@keyframes floatCard {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}
.floating-card .card-icon {
  font-size: 1.5rem;
  margin-bottom: 4px;
}

.floating-card .card-value {
  font-size: 1.2rem;
  font-weight: 700;
}

.floating-card .card-label {
  font-size: 0.75rem;
  opacity: 0.7;
}

/* ========== 通用区块 ========== */
.section {
  padding: 80px 20px;
}

.section-dark {
  background: #0d1b2a;
  color: #ffffff;
}

.section-light {
  background: #ffffff;
}

.section-gray {
  background: #f8f9fa;
}

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

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-tag {
  display: inline-block;
  background: linear-gradient(135deg, rgba(26, 115, 232, 0.1), rgba(0, 201, 167, 0.1));
  color: #1a73e8;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 6px 18px;
  border-radius: 20px;
  margin-bottom: 16px;
  border: 1px solid rgba(26, 115, 232, 0.2);
}

.section-dark .section-tag {
  background: rgba(26, 115, 232, 0.15);
  border-color: rgba(26, 115, 232, 0.3);
  color: #00c9a7;
}

.section-header h2 {
  font-size: 2.4rem;
  font-weight: 800;
  margin-bottom: 16px;
  line-height: 1.3;
}

.section-header p {
  font-size: 1.1rem;
  color: #6c757d;
  max-width: 640px;
  margin: 0 auto;
}

.section-dark .section-header p {
  color: rgba(255, 255, 255, 0.6);
}

/* ========== 特色优势 ========== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.feature-card {
  background: #ffffff;
  border-radius: 12px;
  padding: 36px 28px;
  text-align: center;
  transition: all 0.3s ease;
  border: 1px solid #e9ecef;
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #1a73e8, #00c9a7);
  transform: scaleX(0);
  transition: all 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.16);
  border-color: transparent;
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-icon {
  width: 68px;
  height: 68px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 1.8rem;
}

.feature-icon.blue {
  background: rgba(26, 115, 232, 0.1);
}

.feature-icon.green {
  background: rgba(0, 201, 167, 0.1);
}

.feature-icon.orange {
  background: rgba(245, 166, 35, 0.1);
}

.feature-icon.purple {
  background: rgba(155, 89, 182, 0.1);
}

.feature-icon.red {
  background: rgba(231, 76, 60, 0.1);
}

.feature-icon.teal {
  background: rgba(0, 188, 212, 0.1);
}

.feature-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: #343a40;
}

.feature-card p {
  font-size: 0.92rem;
  color: #6c757d;
  line-height: 1.7;
}

/* ========== 教程步骤 ========== */
.steps-wrapper {
  position: relative;
}

.steps-line {
  position: absolute;
  left: 40px;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, #1a73e8, #00c9a7);
  border-radius: 3px;
}

.step-item {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 30px;
  margin-bottom: 50px;
  position: relative;
}

.step-number {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, #1a73e8, #00c9a7);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  font-weight: 800;
  color: #ffffff;
  box-shadow: 0 4px 20px rgba(26, 115, 232, 0.3);
  position: relative;
  z-index: 2;
}

.step-content {
  background: #ffffff;
  border-radius: 12px;
  padding: 30px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  border: 1px solid #e9ecef;
  transition: all 0.3s ease;
}

.step-content:hover {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
  transform: translateX(5px);
}

.step-content h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: #343a40;
}

.step-content p {
  color: #6c757d;
  font-size: 0.95rem;
  margin-bottom: 16px;
}

.step-content .step-img {
  border-radius: 8px;
  width: 100%;
  max-height: 280px;
  -o-object-fit: cover;
     object-fit: cover;
  margin-top: 12px;
}

.step-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.step-tag {
  background: #f8f9fa;
  color: #6c757d;
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 0.8rem;
  font-weight: 500;
}

/* ========== 交易类型展示 ========== */
.trade-types {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.trade-card {
  background: #1b2d45;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: all 0.3s ease;
}

.trade-card:hover {
  transform: translateY(-4px);
  border-color: rgba(26, 115, 232, 0.3);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

.trade-card-img {
  width: 100%;
  height: 220px;
  -o-object-fit: cover;
     object-fit: cover;
}

.trade-card-body {
  padding: 28px;
}

.trade-card-body h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: #ffffff;
}

.trade-card-body p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.92rem;
  margin-bottom: 16px;
}

.trade-features {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.trade-feature {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.05);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.7);
}

.trade-feature .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #00c9a7;
}

/* ========== 市场数据展示 ========== */
.market-section {
  background: linear-gradient(135deg, #0d1b2a, #1b2d45);
  padding: 80px 20px;
}

.market-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 50px;
}

.market-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 24px;
  text-align: center;
  transition: all 0.3s ease;
}

.market-card:hover {
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-3px);
}

.market-coin {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 12px;
}

.coin-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.85rem;
  color: white;
}

.coin-btc {
  background: #f7931a;
}

.coin-eth {
  background: #627eea;
}

.coin-sol {
  background: linear-gradient(135deg, #9945ff, #14f195);
}

.coin-bnb {
  background: #f3ba2f;
}

.market-card .price {
  font-size: 1.4rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 6px;
}

.market-card .change {
  font-size: 0.85rem;
  font-weight: 600;
}

.change.up {
  color: #27ae60;
}

.change.down {
  color: #e74c3c;
}

.market-chart-img {
  width: 100%;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

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

.faq-item {
  background: #ffffff;
  border-radius: 12px;
  margin-bottom: 16px;
  border: 1px solid #e9ecef;
  overflow: hidden;
  transition: all 0.3s ease;
}

.faq-item:hover {
  border-color: #1a73e8;
}

.faq-question {
  padding: 22px 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-weight: 600;
  font-size: 1.05rem;
  color: #343a40;
  transition: all 0.3s ease;
}

.faq-question:hover {
  color: #1a73e8;
}

.faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #f8f9fa;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  flex-shrink: 0;
  font-size: 1.2rem;
  color: #6c757d;
}

.faq-item.active .faq-icon {
  background: #1a73e8;
  color: #ffffff;
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 0 28px 22px;
}

.faq-answer p {
  color: #6c757d;
  font-size: 0.95rem;
  line-height: 1.8;
}

/* ========== CTA 区域 ========== */
.cta-section {
  background: linear-gradient(135deg, #1a73e8, #4a90d9, #00c9a7);
  padding: 80px 20px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 30% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
}

.cta-content {
  position: relative;
  z-index: 1;
}

.cta-section h2 {
  font-size: 2.6rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 16px;
}

.cta-section p {
  font-size: 1.15rem;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 36px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.btn-white {
  background: #ffffff;
  color: #1a73e8;
  padding: 16px 40px;
  font-size: 1.05rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
}

/* ========== 页脚 ========== */
.footer {
  background: #0d1b2a;
  color: rgba(255, 255, 255, 0.6);
  padding: 60px 20px 30px;
}

.footer-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand h3 {
  font-size: 1.4rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.8;
  margin-bottom: 20px;
}

.footer-social {
  display: flex;
  gap: 12px;
}

.social-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: all 0.3s ease;
  cursor: pointer;
}

.social-icon:hover {
  background: #1a73e8;
  border-color: #1a73e8;
  color: #ffffff;
}

.footer-col h4 {
  color: #ffffff;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.footer-col ul li {
  margin-bottom: 12px;
}

.footer-col ul li a {
  font-size: 0.9rem;
  transition: all 0.3s ease;
}

.footer-col ul li a:hover {
  color: #00c9a7;
  padding-left: 4px;
}

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.85rem;
}

/* ========== 回到顶部 ========== */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: #1a73e8;
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
  transition: all 0.3s ease;
  opacity: 0;
  visibility: hidden;
  z-index: 999;
  border: none;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.16);
}

/* ========== 响应式 (包含页脚一行三列修改) ========== */
@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }
  .hero-text p {
    margin: 0 auto 36px;
  }
  .hero-buttons {
    justify-content: center;
  }
  .hero-stats {
    justify-content: center;
  }
  .hero-text h1 {
    font-size: 2.6rem;
  }
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .market-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: #0d1b2a;
    flex-direction: column;
    padding: 80px 30px 30px;
    gap: 20px;
    transition: all 0.3s ease;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.16);
  }
  .nav-links.active {
    right: 0;
  }
  .menu-toggle {
    display: flex;
  }
  .hero {
    min-height: auto;
    padding: 100px 20px 60px;
  }
  .hero-text h1 {
    font-size: 2rem;
  }
  .hero-text p {
    font-size: 1rem;
  }
  .hero-stats {
    gap: 24px;
  }
  .stat-number {
    font-size: 1.5rem;
  }
  .hero-image .floating-card {
    display: none;
  }
  .section {
    padding: 60px 16px;
  }
  .section-header h2 {
    font-size: 1.8rem;
  }
  .features-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .steps-line {
    display: none;
  }
  .step-item {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .step-number {
    width: 56px;
    height: 56px;
    font-size: 1.2rem;
  }
  .trade-types {
    grid-template-columns: 1fr;
  }
  .market-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .cta-section h2 {
    font-size: 1.8rem;
  }
  /* ========== 页脚：品牌栏保留，下方三列导航 ========== */
  .footer-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
  .footer-brand {
    grid-column: 1/-1;
    margin-bottom: 30px;
    text-align: left;
  }
  .footer-social {
    justify-content: flex-start;
  }
  .footer-col {
    text-align: left;
  }
  .footer-col h4 {
    font-size: 1rem;
    margin-bottom: 18px;
  }
  .footer-col ul li {
    margin-bottom: 10px;
  }
  .footer-col ul li a {
    font-size: 0.88rem;
  }
  /* ========== 页脚修改结束 ========== */
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}
@media (max-width: 480px) {
  .hero-text h1 {
    font-size: 1.7rem;
  }
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  .btn {
    width: 100%;
    justify-content: center;
  }
  .hero-stats {
    flex-direction: column;
    align-items: center;
    gap: 16px;
  }
  .stat-item {
    text-align: center;
  }
  .market-grid {
    grid-template-columns: 1fr;
  }
  .section-header h2 {
    font-size: 1.5rem;
  }
}
/* ========== 动画 ========== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}/*# sourceMappingURL=styles.css.map */