* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  line-height: 1.6;
  color: #1f2937;
  background: #fff;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* 导航栏 */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: #fff;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.nav-content {
  width: 100%;
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.logo {
  height: 2.5rem;
}

.nav-divider {
  width: 1px;
  height: 2rem;
  background: linear-gradient(to bottom, transparent, rgba(219, 101, 49, 0.3), transparent);
  display: none;
}

.nav-slogan {
  background: linear-gradient(to right, #DB6531, #FF8C5A);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.05em;
  display: none;
}

.nav-dots {
  display: none;
  align-items: center;
  gap: 0.25rem;
}

.dot {
  border-radius: 50%;
  background: #DB6531;
}

.dot-1 {
  width: 6px;
  height: 6px;
  animation: pulse 2s infinite;
}

.dot-2 {
  width: 4px;
  height: 4px;
  background: #FF8C5A;
  animation: pulse 2s infinite 0.3s;
}

.dot-3 {
  width: 2px;
  height: 2px;
  animation: pulse 2s infinite 0.6s;
}

@media (min-width: 768px) {
  .nav-divider,
  .nav-slogan,
  .nav-dots {
    display: flex;
  }
}

.nav-links {
  display: none;
  align-items: center;
  gap: 2rem;
}

@media (min-width: 768px) {
  .nav-links {
    display: flex;
  }
}

.nav-links a {
  font-size: 0.875rem;
  color: #374151;
  text-decoration: none;
  transition: color 0.3s;
  white-space: nowrap;
  cursor: pointer;
}

.nav-links a:hover {
  color: #DB6531;
}

.btn-primary {
  background: #DB6531;
  color: #fff;
  padding: 0.5rem 1.25rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.3s;
  white-space: nowrap;
  cursor: pointer;
  display: inline-block;
}

.btn-primary:hover {
  background: #C55528;
}

/* Hero 区域 */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 5rem;
}

.hero-bg {
  position: absolute;
  inset: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, transparent, rgba(255,255,255,0.6), #fff);
}

.hero-content {
  position: relative;
  z-index: 10;
  width: 100%;
}

.hero-grid {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}

@media (min-width: 768px) {
  .hero-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.hero-left {
  display: none;
}

@media (min-width: 768px) {
  .hero-left {
    display: block;
  }
}

.hero-right {
  margin-left: 0;
}

@media (min-width: 768px) {
  .hero-right {
    margin-left: 5%;
  }
}

.hero-card {
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(40px);
  padding: 3rem;
  border-radius: 1.5rem;
  box-shadow: 0 20px 60px rgba(0,0,0,0.15);
}

.hero-icon-wrapper {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
  animation: fadeInUp 0.8s ease-out;
}

.hero-icon {
  width: 3rem;
  height: 3rem;
  background: linear-gradient(135deg, #DB6531, #FF8C5A);
  border-radius: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(219, 101, 49, 0.3);
}

.hero-icon i {
  color: #fff;
  font-size: 1.5rem;
}

.hero-line {
  height: 4px;
  width: 5rem;
  background: linear-gradient(to right, #DB6531, transparent);
  border-radius: 9999px;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  color: #111827;
  margin-bottom: 1.5rem;
  line-height: 1.2;
  animation: fadeInUp 1s ease-out;
}

@media (min-width: 768px) {
  .hero-title {
    font-size: 4rem;
  }
}

.hero-title-gradient {
  background: linear-gradient(to right, #DB6531, #FF8C5A);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: #374151;
  margin-bottom: 0.5rem;
  font-weight: 400;
  line-height: 1.6;
  animation: fadeInUp 1.2s ease-out;
}

.hero-subtitle:first-of-type {
  font-weight: 500;
  color: #1f2937;
}

.hero-buttons {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2.5rem;
  animation: fadeInUp 1.6s ease-out;
}

@media (min-width: 640px) {
  .hero-buttons {
    flex-direction: row;
    align-items: center;
    gap: 1.5rem;
  }
}

.btn-hero-primary {
  background: linear-gradient(to right, #DB6531, #FF8C5A);
  color: #fff;
  padding: 1rem 2.5rem;
  border-radius: 9999px;
  font-size: 1.125rem;
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.3s;
  white-space: nowrap;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(219, 101, 49, 0.3);
}

.btn-hero-primary:hover {
  box-shadow: 0 8px 24px rgba(219, 101, 49, 0.4);
  transform: translateY(-2px);
}

.btn-hero-secondary {
  background: #fff;
  border: 2px solid #DB6531;
  color: #DB6531;
  padding: 1rem 2.5rem;
  border-radius: 9999px;
  font-size: 1.125rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s;
  white-space: nowrap;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(219, 101, 49, 0.1);
}

.btn-hero-secondary:hover {
  background: rgba(219, 101, 49, 0.05);
  transform: translateY(-2px);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  padding-top: 2rem;
  border-top: 1px solid #e5e7eb;
  animation: fadeInUp 1.8s ease-out;
}

.hero-stat {
  text-align: center;
}

.hero-stat-number {
  font-size: 1.875rem;
  font-weight: 700;
  background: linear-gradient(to right, #DB6531, #FF8C5A);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.25rem;
}

.hero-stat-label {
  font-size: 0.875rem;
  color: #6b7280;
}

.hero-trust {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-top: 2rem;
  animation: fadeInUp 2s ease-out;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: #6b7280;
}

.trust-item i {
  color: #DB6531;
}

.trust-divider {
  width: 1px;
  height: 1rem;
  background: #d1d5db;
}

.hero-float {
  position: absolute;
  border-radius: 50%;
  background: rgba(219, 101, 49, 0.1);
  filter: blur(40px);
  animation: float 6s ease-in-out infinite;
}

.hero-float-1 {
  top: 25%;
  left: 2.5rem;
  width: 5rem;
  height: 5rem;
}

.hero-float-2 {
  top: 33.33%;
  right: 5rem;
  width: 8rem;
  height: 8rem;
  animation-duration: 8s;
  animation-delay: 2s;
}

.hero-float-3 {
  bottom: 25%;
  left: 25%;
  width: 6rem;
  height: 6rem;
  animation-duration: 7s;
  animation-delay: 1s;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-20px);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

/* 三端架构展示区 */
.architecture-section {
  padding: 6rem 0;
  background: linear-gradient(to bottom, #fff, #f9fafb);
  position: relative;
  overflow: hidden;
}

.architecture-section::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 24rem;
  height: 24rem;
  background: rgba(219, 101, 49, 0.05);
  border-radius: 50%;
  filter: blur(60px);
}

.architecture-section::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 20rem;
  height: 20rem;
  background: rgba(219, 101, 49, 0.05);
  border-radius: 50%;
  filter: blur(60px);
}

.architecture-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4rem;
  align-items: center;
  position: relative;
  z-index: 10;
}

@media (min-width: 768px) {
  .architecture-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.section-badge {
  display: inline-block;
  background: linear-gradient(to right, #DB6531, #FF8C5A);
  color: #fff;
  padding: 0.375rem 1rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
  box-shadow: 0 4px 12px rgba(219, 101, 49, 0.3);
}

.section-title {
  font-size: 3rem;
  font-weight: 700;
  color: #111827;
  margin-bottom: 2rem;
  line-height: 1.2;
}

.title-gradient {
  background: linear-gradient(to right, #DB6531, #FF8C5A);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.architecture-features {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.architecture-feature {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  transition: transform 0.3s;
}

.architecture-feature:hover {
  transform: translateX(8px);
}

.feature-icon {
  width: 3rem;
  height: 3rem;
  background: linear-gradient(135deg, #DB6531, #FF8C5A);
  border-radius: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(219, 101, 49, 0.3);
  transition: transform 0.3s;
}

.architecture-feature:hover .feature-icon {
  transform: scale(1.1);
}

.feature-icon i {
  color: #fff;
  font-size: 1.25rem;
}

.feature-content {
  flex: 1;
}

.feature-title {
  font-weight: 700;
  color: #111827;
  margin-bottom: 0.5rem;
  font-size: 1.125rem;
}

.feature-desc {
  color: #6b7280;
  line-height: 1.6;
}

.btn-more {
  margin-top: 2.5rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: linear-gradient(to right, #DB6531, #FF8C5A);
  color: #fff;
  padding: 0.75rem 2rem;
  border-radius: 9999px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s;
  white-space: nowrap;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(219, 101, 49, 0.3);
}

.btn-more:hover {
  box-shadow: 0 8px 24px rgba(219, 101, 49, 0.4);
  transform: translateY(-2px);
}

.architecture-right {
  position: relative;
}

.architecture-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.arch-card {
  background: #fff;
  border-radius: 1rem;
  padding: 1.5rem;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  border: 2px solid transparent;
  transition: all 0.3s;
  cursor: pointer;
}

.arch-card:hover {
  transform: translateY(-8px);
  border-color: #DB6531;
  box-shadow: 0 8px 24px rgba(0,0,0,0.15);
}

.arch-card-2 {
  margin-top: 3rem;
}

.arch-card-icon {
  width: 3.5rem;
  height: 3.5rem;
  background: linear-gradient(135deg, rgba(219, 101, 49, 0.1), rgba(255, 140, 90, 0.1));
  border-radius: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
}

.arch-card-icon i {
  color: #DB6531;
  font-size: 1.5rem;
}

.arch-card-title {
  font-weight: 700;
  color: #111827;
  margin-bottom: 0.5rem;
}

.arch-card-desc {
  font-size: 0.875rem;
  color: #6b7280;
  margin-bottom: 0.75rem;
}

.arch-card-tag {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  color: #DB6531;
}

.arch-card-tag i {
  font-size: 1rem;
}

.arch-card-3 {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, #fff, rgba(219, 101, 49, 0.05));
  padding: 2rem;
}

.arch-card-3:hover {
  transform: translateY(-8px);
}

.arch-card-3 .arch-card-content {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.arch-card-icon-large {
  width: 4rem;
  height: 4rem;
  background: linear-gradient(135deg, #DB6531, #FF8C5A);
  border-radius: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(219, 101, 49, 0.3);
}

.arch-card-icon-large i {
  color: #fff;
  font-size: 1.875rem;
}

.arch-card-title-large {
  font-weight: 700;
  color: #111827;
  margin-bottom: 0.5rem;
  font-size: 1.125rem;
}

.arch-card-tags {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  margin-top: 1rem;
}

.arch-tag {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  color: #374151;
}

.arch-tag i {
  color: #DB6531;
}

.data-flow {
  position: absolute;
  right: -1rem;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.flow-dot {
  width: 0.75rem;
  height: 0.75rem;
  background: #DB6531;
  border-radius: 50%;
  animation: pulse 2s infinite;
}

.flow-dot-2 {
  animation-delay: 0.5s;
}

.flow-dot-3 {
  animation-delay: 1s;
}

.flow-line {
  width: 2px;
  height: 3rem;
  background: linear-gradient(to bottom, #DB6531, transparent);
}

/* 十大核心功能 */
.features-section {
  padding: 6rem 0;
  background: #fff;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-title-center {
  font-size: 3rem;
  font-weight: 700;
  color: #111827;
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.25rem;
  color: #6b7280;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .features-grid {
    grid-template-columns: repeat(5, 1fr);
  }
}

.feature-card {
  background: #fff;
  border-radius: 1rem;
  padding: 1.5rem;
  border: 2px solid #f3f4f6;
  transition: all 0.3s;
  cursor: pointer;
}

.feature-card:hover {
  border-color: #DB6531;
  transform: translateY(-8px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.1);
}

.feature-card-icon {
  width: 4rem;
  height: 4rem;
  background: rgba(219, 101, 49, 0.1);
  border-radius: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  transition: background 0.3s;
}

.feature-card:hover .feature-card-icon {
  background: #DB6531;
}

.feature-card-icon i {
  font-size: 1.875rem;
  color: #DB6531;
  transition: color 0.3s;
}

.feature-card:hover .feature-card-icon i {
  color: #fff;
}

.feature-card-title {
  font-weight: 600;
  color: #111827;
  margin-bottom: 0.5rem;
  font-size: 1.125rem;
}

.feature-card-desc {
  font-size: 0.875rem;
  color: #6b7280;
  line-height: 1.6;
}

/* 痛点解决方案 */
.solutions-section {
  padding: 6rem 0;
  background: #f9fafb;
}

.solutions-list {
  display: flex;
  flex-direction: column;
  gap: 8rem;
}

.solution-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}

@media (min-width: 768px) {
  .solution-item {
    grid-template-columns: 1fr 1fr;
  }
}

.solution-item-reverse .solution-content {
  order: 2;
}

.solution-item-reverse .solution-image {
  order: 1;
}

@media (max-width: 767px) {
  .solution-item-reverse .solution-content {
    order: 1;
  }
  
  .solution-item-reverse .solution-image {
    order: 2;
  }
}

.solution-tag {
  display: inline-block;
  background: #DB6531;
  color: #fff;
  padding: 0.375rem 1rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.solution-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: #111827;
  margin-bottom: 1rem;
}

.solution-problem {
  color: #6b7280;
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.solution-points {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.solution-point {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.solution-point i {
  color: #DB6531;
  font-size: 1.25rem;
  flex-shrink: 0;
  margin-top: 0.125rem;
}

.solution-point span {
  color: #374151;
}

.solution-link {
  color: #DB6531;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  cursor: pointer;
  transition: gap 0.3s;
}

.solution-link:hover {
  gap: 0.75rem;
  text-decoration: underline;
}

.solution-image {
  position: relative;
  border-radius: 1.5rem;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.15);
  cursor: pointer;
}

.solution-image img {
  width: 100%;
  height: 24rem;
  object-fit: cover;
  transition: transform 0.5s;
}

.solution-image:hover img {
  transform: scale(1.05);
}

.solution-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(219, 101, 49, 0.2), transparent);
}

/* 用户角色应用场景 */
.scenarios-section {
  padding: 6rem 0;
  background: #fff;
}

.scenarios-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 768px) {
  .scenarios-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.scenario-card {
  background: linear-gradient(135deg, #fff, rgba(219, 101, 49, 0.05));
  border-radius: 1.5rem;
  padding: 2rem;
  border: 2px solid #f3f4f6;
  transition: all 0.3s;
  cursor: pointer;
}

.scenario-card:hover {
  border-color: #DB6531;
  transform: translateY(-8px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.15);
}

.scenario-icon {
  width: 5rem;
  height: 5rem;
  background: rgba(219, 101, 49, 0.1);
  border-radius: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  transition: background 0.3s;
}

.scenario-card:hover .scenario-icon {
  background: #DB6531;
}

.scenario-icon i {
  font-size: 2.5rem;
  color: #DB6531;
  transition: color 0.3s;
}

.scenario-card:hover .scenario-icon i {
  color: #fff;
}

.scenario-role {
  font-size: 1.5rem;
  font-weight: 700;
  color: #111827;
  margin-bottom: 0.5rem;
}

.scenario-subtitle {
  color: #6b7280;
  margin-bottom: 1.5rem;
}

.scenario-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.scenario-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.scenario-item i {
  color: #DB6531;
  font-size: 1.125rem;
  flex-shrink: 0;
  margin-top: 0.125rem;
}

.scenario-item span {
  font-size: 0.875rem;
  color: #374151;
}

/* CTA区域 */
.cta-section {
  padding: 6rem 0;
  background: #f9fafb;
}

.cta-wrapper {
  background: #fff;
  border-radius: 1.5rem;
  box-shadow: 0 20px 60px rgba(0,0,0,0.15);
  overflow: hidden;
}

.cta-grid {
  display: grid;
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .cta-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.cta-image {
  position: relative;
  min-height: 600px;
}

.cta-image img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cta-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.6), transparent);
}

.cta-image-content {
  position: absolute;
  bottom: 3rem;
  left: 3rem;
  right: 3rem;
}

.cta-image-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 1rem;
}

.cta-image-subtitle {
  color: rgba(255,255,255,0.9);
  font-size: 1.125rem;
}

.cta-form-wrapper {
  padding: 3rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.cta-form-title {
  font-size: 1.875rem;
  font-weight: 700;
  color: #111827;
  margin-bottom: 0.5rem;
}

.cta-form-subtitle {
  color: #6b7280;
  margin-bottom: 2rem;
}

.cta-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-input {
  width: 100%;
  padding: 1rem 1.25rem;
  border: 2px solid #e5e7eb;
  border-radius: 0.75rem;
  font-size: 1rem;
  transition: border-color 0.3s;
}

.form-input:focus {
  outline: none;
  border-color: #DB6531;
}

.form-submit {
  width: 100%;
  background: #DB6531;
  color: #fff;
  padding: 1rem;
  border-radius: 0.75rem;
  font-size: 1.125rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: background 0.3s;
  white-space: nowrap;
}

.form-submit:hover {
  background: #C55528;
}

.form-privacy {
  font-size: 0.875rem;
  color: #9ca3af;
  text-align: center;
}

/* 页脚 */
.footer {
  background: #DB6531;
  color: #fff;
  padding: 4rem 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.footer-logo {
  width: 2.5rem;
  height: 2.5rem;
  background: rgba(255,255,255,0.2);
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.footer-logo i {
  color: #fff;
  font-size: 1.25rem;
}

.footer-brand-name {
  font-weight: 700;
  font-size: 1.25rem;
}

.footer-desc {
  color: rgba(255,255,255,0.8);
  font-size: 0.875rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.footer-social {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.social-link {
  width: 2.5rem;
  height: 2.5rem;
  border: 2px solid rgba(255,255,255,0.3);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  text-decoration: none;
  transition: all 0.3s;
  cursor: pointer;
}

.social-link:hover {
  background: rgba(255,255,255,0.1);
}

.footer-title {
  font-weight: 600;
  margin-bottom: 1rem;
  font-size: 1.125rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.footer-links a {
  color: rgba(255,255,255,0.8);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color 0.3s;
  cursor: pointer;
}

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

.footer-contact {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.875rem;
}

.footer-contact i {
  flex-shrink: 0;
  margin-top: 0.125rem;
}

.footer-contact span {
  color: rgba(255,255,255,0.8);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.2);
  padding-top: 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

.footer-copyright {
  color: rgba(255,255,255,0.7);
  font-size: 0.875rem;
}

.footer-bottom-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-size: 0.875rem;
}

.footer-bottom-links a {
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  transition: color 0.3s;
  cursor: pointer;
}

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

.footer-bottom-links span {
  color: rgba(255,255,255,0.7);
}