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

html {
  scroll-behavior: smooth;
}

body {
  font-family:
    'PingFang SC',
    'Hiragino Sans GB',
    'Microsoft YaHei',
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    'Segoe UI',
    Roboto,
    'Helvetica Neue',
    Arial,
    sans-serif;
  color: #333;
  background: #ffffff;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a {
  text-decoration: none;
  color: inherit;
}

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

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

/* === Header === */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: #ffffff;
  border-bottom: 1px solid #e5e7eb;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-img {
  width: 40px;
  height: 40px;
  object-fit: contain;
  flex-shrink: 0;
}

.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: #333;
}

.logo-sub {
  font-size: 12px;
  color: #999;
  margin-top: -2px;
}

.nav {
  display: none;
  align-items: center;
  gap: 32px;
}

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

.nav a {
  color: #666;
  font-weight: 500;
  font-size: 15px;
  transition: color 0.2s;
}

.nav a:hover {
  color: #dc2626;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.phone-number {
  color: #dc2626;
  font-weight: 700;
  display: none;
}

@media (min-width: 640px) {
  .phone-number {
    display: block;
  }
}

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  padding: 8px 20px;
  border-radius: 8px;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
  font-size: 14px;
  line-height: 1.5;
}

.btn-primary {
  background: #dc2626;
  color: #ffffff;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.btn-primary:hover {
  background: #b91c1c;
}

.btn-outline {
  background: transparent;
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.5);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
}

.btn-dark {
  background: #333;
  color: #ffffff;
}

.btn-dark:hover {
  background: #1a1a1a;
}

.btn-lg {
  padding: 12px 32px;
  font-size: 16px;
}

.btn-full {
  width: 100%;
  justify-content: center;
  padding: 12px 20px;
}

/* === Hero === */
.hero {
  padding-top: 64px;
  background: url('bg-hero.jpg') center right / cover no-repeat;
  color: #ffffff;
  position: relative;
  overflow: hidden;
}

.hero-content {
  padding: 72px 24px 76px;
  position: relative;
  z-index: 1;
}

@media (min-width: 1024px) {
  .hero-content {
    padding: 88px 24px 92px;
  }
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 18% 22%, rgba(255, 255, 255, 0.08), transparent 30%), linear-gradient(90deg, rgba(0, 0, 0, 0.42) 0%, rgba(0, 0, 0, 0.1) 46%, rgba(0, 0, 0, 0.26) 100%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.08) 0%, rgba(0, 0, 0, 0.34) 100%);
  pointer-events: none;
}

.hero-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(4px);
  padding: 8px 20px;
  border-radius: 9999px;
  margin-bottom: 32px;
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
}

.hero-badge-tag {
  background: #dc2626;
  color: #ffffff;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 9999px;
}

.hero-badge-text {
  font-size: 14px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.85);
}

.hero-title-wrapper {
  text-align: center;
  margin-bottom: 24px;
}

.hero-title {
  font-size: 30px;
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 16px;
}

@media (min-width: 1024px) {
  .hero-title {
    font-size: 48px;
  }
}

.hero-desc {
  font-size: 18px;
  color: rgba(255, 255, 255, 0.75);
  max-width: 768px;
  margin: 0 auto;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  max-width: 896px;
  margin: 0 auto;
}

.stat-card {
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(14px);
  border-radius: 12px;
  padding: 20px;
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow: 0 18px 36px rgba(0, 0, 0, 0.24);
}

.stat-number {
  font-size: 30px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 4px;
}

@media (min-width: 1024px) {
  .stat-number {
    font-size: 36px;
  }
}

.stat-label {
  font-size: 18px;
  color: rgba(255, 255, 255, 0.75);
}

@media (max-width: 768px) {
  .hero-title-wrapper {
    text-align: center;
  }

  .hero-title {
    font-size: 28px;
  }

  .hero-desc {
    font-size: 16px;
  }

  .hero-stats {
    grid-template-columns: 1fr;
  }
}

/* === Badge Bar === */
.badge-bar {
  background: #f9fafb;
  border-top: 1px solid #e5e7eb;
  border-bottom: 1px solid #e5e7eb;
  padding: 16px 0;
}

.badge-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
}

@media (min-width: 1024px) {
  .badge-list {
    gap: 40px;
  }
}

.badge-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.badge-dot {
  width: 48px;
  height: 48px;
  background: #fef2f2;
  color: #dc2626;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.badge-item > span:last-child {
  color: #333;
  font-weight: 500;
  font-size: 14px;
}

/* === Section Common === */
.section {
  padding: 64px 0;
}

.section-white {
  background: #ffffff;
}

.section-gray {
  background: #f9fafb;
}

.section-red {
  background: #dc2626;
  color: #ffffff;
}

.section-header {
  text-align: center;
  margin-bottom: 40px;
}

.section-label {
  color: #dc2626;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-size: 14px;
}

.section-label-light {
  color: rgba(255, 255, 255, 0.7);
}

.section-title {
  font-size: 24px;
  font-weight: 700;
  color: #333;
  margin-top: 8px;
}

@media (min-width: 1024px) {
  .section-title {
    font-size: 30px;
  }
}

.section-title-white {
  color: #ffffff;
}

.section-desc {
  color: #555;
  margin-top: 12px;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

.section-desc-light {
  color: rgba(255, 255, 255, 0.75);
}

/* === About === */
.about-layout {
  display: flex;
  gap: 48px;
  align-items: center;
  margin-bottom: 32px;
}

.about-content {
  flex: 1;
  min-width: 0;
}

.about-image {
  width: 320px;
  flex-shrink: 0;
}

.about-image img {
  width: 100%;
  height: auto;
  border-radius: 12px;
}

@media (max-width: 768px) {
  .about-layout {
    flex-direction: column;
    gap: 24px;
  }

  .about-image {
    width: 100%;
    max-width: 320px;
  }

  .brand-bar {
    justify-content: center;
    text-align: center;
  }
}

.brand-bar {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid #e5e7eb;
}

.brand-icon {
  width: 56px;
  height: 56px;
  background: #dc2626;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  flex-shrink: 0;
}

.brand-icon span {
  color: #ffffff;
  font-weight: 700;
  font-size: 24px;
}

.brand-name {
  font-size: 24px;
  font-weight: 700;
  color: #333;
}

.brand-en {
  color: #999;
  font-size: 14px;
}

.about-text {
  color: #666;
  line-height: 1.75;
  margin-bottom: 16px;
  text-align: left;
}

.about-text:last-of-type {
  margin-bottom: 0;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 32px;
}

@media (min-width: 1024px) {
  .about-stats {
    grid-template-columns: repeat(4, 1fr);
  }
}

.about-stat-card {
  background: #ffffff;
  border-radius: 12px;
  padding: 20px;
  text-align: center;
  border: 1px solid #eee;
}

.about-stat-number {
  font-size: 30px;
  font-weight: 700;
  color: #dc2626;
}

.about-stat-label {
  color: #222;
  font-size: 14px;
  margin-top: 4px;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.tag {
  background: #f5f5f5;
  color: #333;
  padding: 8px 20px;
  border-radius: 9999px;
  font-size: 14px;
  font-weight: 600;
  border: 1px solid #e5e7eb;
}

#qitong {
  background:
    linear-gradient(135deg, rgba(0,0,0,0.94) 0%, rgba(8,8,10,0.90) 52%, rgba(18,18,18,0.88) 100%),
    url('qitong-bg.jpg') center center / cover no-repeat;
  color: #ffffff;
  position: relative;
  overflow: hidden;
}

#qitong::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 24% 22%, rgba(255,255,255,0.06), transparent 32%),
    linear-gradient(90deg, rgba(0,0,0,0.46) 0%, rgba(0,0,0,0.10) 48%, rgba(0,0,0,0.22) 100%);
  pointer-events: none;
}

#qitong::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.02) 0%, rgba(0,0,0,0.28) 100%);
  pointer-events: none;
}

#qitong .container {
  position: relative;
  z-index: 1;
}

.section-red#qitong {
  background: linear-gradient(rgba(0,0,0,0.10), rgba(0,0,0,0.10)), url('qitong-bg.jpg') center center / cover no-repeat;
}

/* === 汽通全球 === */
.feature-card {
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(14px);
  border-radius: 20px;
  padding: 28px;
  margin-bottom: 32px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: 0 18px 40px rgba(0,0,0,0.24);
}

.feature-card-header {
  margin-bottom: 16px;
}

.feature-card-title {
  font-size: 28px;
  font-weight: 700;
  color: #ffffff;
  line-height: 1.2;
  margin-bottom: 8px;
}

.feature-card-sub {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 12px;
  border-radius: 9999px;
  background: rgba(255,255,255,0.15);
  color: rgba(255,255,255,0.85);
  font-size: 16px;
  font-weight: 500;
  margin-bottom: 18px;
}

.feature-card-desc {
  color: rgba(255, 255, 255, 0.82);
  font-size: 15px;
  line-height: 1.85;
}

.advantage-card,
.user-card-factory {
  backdrop-filter: blur(12px);
}

.advantage-card {
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow: 0 12px 28px rgba(0,0,0,0.12);
}

.user-card-factory {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
}

/* === 悦出海 Layout === */
#yue {
  background: linear-gradient(180deg, #ffffff 0%, #fffaf9 100%);
}

.yue-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: 18px;
  align-items: stretch;
  margin-bottom: 32px;
}

.yue-intro {
  background: linear-gradient(180deg, #ffffff 0%, #fff7f7 100%);
  border: 1px solid #f3dddd;
  border-radius: 24px;
  padding: 24px;
  box-shadow: 0 12px 30px rgba(220, 38, 38, 0.06);
  min-width: 0;
}

.yue-intro-icon {
  width: 48px;
  height: 48px;
  background: #dc2626;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: #ffffff;
}

.yue-intro-title {
  font-size: 28px;
  font-weight: 700;
  color: #111827;
  line-height: 1.2;
  margin-bottom: 8px;
}

.yue-intro-sub {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 12px;
  border-radius: 9999px;
  background: #fef2f2;
  color: #dc2626;
  font-size: 16px;
  font-weight: 500;
  margin-bottom: 18px;
}

.yue-intro-desc {
  color: #555;
  font-size: 15px;
  line-height: 1.85;
}

.yue-benefits {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  align-content: start;
}

.yue-benefit-item {
  background-color: #ffffff;
  background-position:
    left top,
    right center;
  background-repeat: no-repeat, no-repeat;
  background-size: cover;
  border: 1px solid #eee;
  border-radius: 20px;
  padding: 30px 18px 30px 18px;
  box-shadow: 0 8px 20px rgba(17, 24, 39, 0.04);
  display: flex;
  align-items: center;
  text-align: left;
  min-height: 0;
  position: relative;
  overflow: hidden;
}

.yue-benefit-item > * {
  position: relative;
  z-index: 1;
}

.benefit-copy {
  min-width: 0;
  width: 100%;
  padding-right: 12px;
}

.benefit-title {
  font-size: 20px;
  font-weight: 700;
  color: #222;
  margin-bottom: 6px;
}

.benefit-desc {
  color: #444;
  font-size: 14px;
  line-height: 1.6;
}

@media (max-width: 768px) {
  .yue-layout {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .yue-benefits {
    width: 100%;
    grid-template-columns: 1fr 1fr;
  }

  .yue-intro {
    padding: 22px;
    text-align: center;
  }

  .yue-intro-icon {
    margin-left: auto;
    margin-right: auto;
  }

  .yue-intro-title {
    font-size: 24px;
  }

  .yue-benefit-item {
    min-height: 170px;
  }

  .benefit-copy {
    width: 52%;
  }
}

@media (max-width: 480px) {
  .yue-benefits {
    grid-template-columns: 1fr;
  }

  .yue-benefit-item {
    min-height: 148px;
  }

  .benefit-copy {
    width: 56%;
  }
}

/* Advantage Grid */
.advantage-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
  margin-bottom: 32px;
}

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

@media (max-width: 480px) {
  .advantage-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.advantage-card {
  background: #ffffff;
  border-radius: 12px;
  padding: 16px;
  text-align: center;
  border: 1px solid #eee;
}

.advantage-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 8px;
}

.advantage-icon-red {
  background: #fef2f2;
  color: #dc2626;
}
.advantage-icon-dark {
  background: #eee;
  color: #333;
}

.advantage-title {
  font-weight: 700;
  color: #333;
  font-size: 18px;
  margin-bottom: 4px;
}

.advantage-desc {
  color: #333;
  font-size: 16px;
}

/* User Cards */
.user-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 768px) {
  .user-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.user-card {
  border-radius: 12px;
  padding: 24px;
}

.user-card-seller {
  background: rgba(220,38,38,0.15);
  backdrop-filter: blur(4px);
  border: 1px solid rgba(220,38,38,0.3);
}

.user-card-factory {
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(4px);
  border: 1px solid rgba(255,255,255,0.3);
}

.user-card-title {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: #ffffff;
}

.user-card-badge {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  flex-shrink: 0;
}

.user-card-badge-red {
  background: #dc2626;
  color: #ffffff;
}

.user-card-badge-dark {
  background: #333;
  color: #ffffff;
}

.user-card-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 20px;
}

.user-feature {
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.8);
  font-size: 14px;
}

.user-feature-check {
  width: 20px;
  height: 20px;
  background: #dc2626;
  color: #ffffff;
  border-radius: 50%;
  display: block;
  flex-shrink: 0;
  padding: 3px;
}

.user-feature-check-dark {
  background: #333;
  color: #ffffff;
}

/* Service Grid */
.service-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-bottom: 36px;
}

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

.service-card {
  background: #ffffff;
  border-radius: 20px;
  padding: 24px;
  border: 1px solid #eee;
  text-align: left;
  box-shadow: 0 10px 24px rgba(17, 24, 39, 0.04);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  height: 100%;
}

.service-icon {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 0 14px;
}

.service-icon-red {
  background: #fef2f2;
  color: #dc2626;
}
.service-icon-dark {
  background: #eee;
  color: #333;
}

.service-title {
  font-weight: 700;
  color: #111827;
  margin-bottom: 8px;
  font-size: 20px;
}

.service-desc {
  color: #6b7280;
  font-size: 14px;
  line-height: 1.7;
}

.cta-center {
  text-align: center;
}

@media (max-width: 480px) {
  .yue-benefits {
    grid-template-columns: 1fr;
  }

  .yue-benefit-item {
    min-height: 0;
  }
}

/* === Bottom CTA === */
.cta-section {
  padding: 48px 0;
  background:
    linear-gradient(rgba(0, 0, 0, 0.75), rgba(0, 0, 0, 0.88)),
    url('bg-1.jpg') center / cover no-repeat;
  color: #ffffff;
  position: relative;
}

.cta-inner {
  text-align: center;
  position: relative;
  z-index: 1;
}

.cta-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
}

@media (min-width: 1024px) {
  .cta-title {
    font-size: 24px;
  }
}

.cta-desc {
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 20px;
}

.cta-actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
}

@media (min-width: 640px) {
  .cta-actions {
    flex-direction: row;
  }
}

.cta-phone {
  font-size: 20px;
  font-weight: 700;
}

/* === Contact === */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 40px;
}

@media (min-width: 1024px) {
  .contact-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.contact-card {
  background: #ffffff;
  border-radius: 12px;
  padding: 20px;
  text-align: center;
  border: 1px solid #eee;
}

.contact-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 12px;
}

.contact-icon-red {
  background: #fef2f2;
  color: #dc2626;
}
.contact-icon-dark {
  background: #eee;
  color: #333;
}

.contact-card-title {
  font-weight: 700;
  color: #333;
  font-size: 20px;
  margin-bottom: 7px;
}

.contact-value {
  color: #dc2626;
  font-weight: 700;
  font-size: 13px;
}

.contact-value-gray {
  color: #666;
  font-size: 14px;
}

.contact-value-xs {
  color: #666;
  font-size: 13px;
}

/* === Form === */
.form-wrapper {
  max-width: 448px;
  margin: 0 auto;
  background: #ffffff;
  border-radius: 12px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
  border: 1px solid #eee;
  padding: 32px;
}

.form-title {
  font-size: 18px;
  font-weight: 700;
  color: #333;
  margin-bottom: 20px;
  text-align: center;
}

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

.form-input {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid #d1d5db;
  border-radius: 8px;
  font-size: 14px;
  outline: none;
  transition:
    box-shadow 0.2s,
    border-color 0.2s;
  font-family: inherit;
}

.form-input:focus {
  box-shadow: 0 0 0 2px rgba(220, 38, 38, 0.5);
  border-color: transparent;
}

.form-textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid #d1d5db;
  border-radius: 8px;
  font-size: 14px;
  outline: none;
  resize: none;
  font-family: inherit;
  transition:
    box-shadow 0.2s,
    border-color 0.2s;
}

.form-textarea:focus {
  box-shadow: 0 0 0 2px rgba(220, 38, 38, 0.5);
  border-color: transparent;
}

.form-success {
  text-align: center;
  padding: 20px 0;
}

.success-icon {
  width: 64px;
  height: 64px;
  background: #fef2f2;
  border-radius: 50%;
  display: block;
  margin: 0 auto 16px;
  padding: 16px;
  color: #dc2626;
}

.form-success h3 {
  font-size: 20px;
  font-weight: 700;
  color: #333;
  margin-bottom: 8px;
}

.form-success p {
  color: #999;
  margin-bottom: 20px;
}

/* === Footer === */
.footer {
  background: #333;
  color: #ffffff;
  padding: 40px 0;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

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

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-logo-text {
  font-size: 18px;
  font-weight: 700;
}

.footer-logo-sub {
  font-size: 12px;
  color: #999;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 24px;
}

.footer-nav a {
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
  transition: color 0.2s;
}

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

.footer-link a {
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
  transition: color 0.2s;
}

.footer-link a:hover {
  color: #ffffff;
}

.footer-divider {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin: 24px 0;
}

.footer-copyright {
  text-align: center;
  color: rgba(255, 255, 255, 0.5);
  font-size: 14px;
}

#about,
#qitong,
#yue,
#contact {
  scroll-margin-top: 80px;
}