:root {
  --blue-900: #0b4fd8;
  --blue-700: #1485f8;
  --blue-500: #307bfe;
  --blue-100: #ecf3fe;
  --text: #1f2a44;
  --text-muted: #667085;
  --orange: #ff9333;
  --white: #fff;
  --shadow: 0 18px 48px rgba(20, 48, 120, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: #f8fafd;
}

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

.container {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(48, 123, 254, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 28px;
  font-weight: 700;
  color: var(--blue-500);
}

.brand-icon {
  width: 42px;
  height: 42px;
  object-fit: contain;
}

.nav {
  display: flex;
  align-items: center;
  gap: 36px;
  margin-left: auto;
  font-size: 16px;
  color: #334155;
}

.nav a:hover {
  color: var(--blue-500);
}

.btn-login {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 96px;
  height: 40px;
  padding: 0 22px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--blue-700), var(--blue-500));
  color: var(--white);
  font-size: 15px;
  font-weight: 600;
  box-shadow: 0 10px 24px rgba(48, 123, 254, 0.28);
}

.btn-login:hover {
  filter: brightness(1.05);
}

.hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, #1485f8 0%, #307bfe 100%);
  color: var(--white);
  padding: 72px 0 120px;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto -10% -120px -10%;
  height: 220px;
  background: radial-gradient(circle at center, rgba(255, 255, 255, 0.18), transparent 70%);
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 32px;
}

.hero-copy h1 {
  margin: 0;
  font-size: clamp(48px, 6vw, 72px);
  line-height: 1.05;
}

.hero-subtitle {
  margin: 18px 0 0;
  font-size: clamp(28px, 3vw, 40px);
  font-weight: 700;
}

.hero-desc {
  max-width: 560px;
  margin: 24px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.92);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 36px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 168px;
  height: 48px;
  padding: 0 24px;
  border-radius: 999px;
  font-size: 16px;
  font-weight: 600;
}

.btn-primary {
  background: var(--white);
  color: var(--blue-500);
}

.btn-outline {
  border: 1px solid rgba(255, 255, 255, 0.72);
  color: var(--white);
}

.hero-visual {
  display: flex;
  justify-content: center;
}

.hero-mascot {
  width: min(420px, 100%);
  filter: drop-shadow(0 24px 40px rgba(0, 40, 120, 0.28));
}

.stats {
  position: relative;
  margin-top: -56px;
  z-index: 2;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  padding: 28px 36px;
  border-radius: 20px;
  background: var(--white);
  box-shadow: var(--shadow);
}

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

.stat-item strong {
  display: block;
  font-size: 34px;
  color: var(--blue-500);
}

.stat-item span {
  display: block;
  margin-top: 8px;
  color: var(--text-muted);
  font-size: 15px;
}

.section {
  padding: 88px 0;
}

.section-title {
  margin: 0 0 40px;
  text-align: center;
  font-size: 36px;
}

.advantages {
  background:
    linear-gradient(rgba(248, 250, 253, 0.92), rgba(248, 250, 253, 0.92)),
    radial-gradient(circle at 20% 20%, rgba(48, 123, 254, 0.08), transparent 40%),
    radial-gradient(circle at 80% 30%, rgba(20, 133, 248, 0.08), transparent 35%);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.info-card {
  padding: 32px 28px;
  border-radius: 20px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.card-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: var(--blue-100);
  color: var(--blue-500);
  font-size: 18px;
  font-weight: 700;
}

.info-card h3 {
  margin: 20px 0 12px;
  font-size: 24px;
}

.info-card p {
  margin: 0;
  color: var(--text-muted);
  line-height: 1.8;
  font-size: 15px;
}

.services {
  background: var(--white);
}

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

.service-block {
  padding: 32px;
  border-radius: 20px;
  background: #f8fafd;
}

.service-block h3 {
  margin: 0 0 20px;
  font-size: 24px;
}

.service-block.shipper h3 {
  color: var(--blue-500);
}

.service-block.enterprise h3 {
  color: var(--orange);
}

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

.tag-list span {
  padding: 10px 16px;
  border-radius: 999px;
  background: var(--white);
  color: #475569;
  font-size: 14px;
  box-shadow: 0 6px 18px rgba(15, 23, 42, 0.06);
}

.site-footer {
  background: linear-gradient(180deg, #1485f8 0%, #0b4fd8 100%);
  color: var(--white);
  padding: 56px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 1fr 0.7fr;
  gap: 32px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 16px;
}

.footer-logo img {
  width: 72px;
  height: 72px;
  object-fit: contain;
}

.footer-logo strong {
  display: block;
  font-size: 24px;
}

.footer-logo p,
.footer-contact p {
  margin: 8px 0 0;
  color: rgba(255, 255, 255, 0.86);
  line-height: 1.7;
}

.footer-links,
.footer-contact,
.footer-qr {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links h4,
.footer-contact h4 {
  margin: 0 0 6px;
  font-size: 18px;
}

.footer-links a:hover {
  text-decoration: underline;
}

.footer-mail {
  color: rgba(255, 255, 255, 0.92);
}

.footer-mail:hover {
  text-decoration: underline;
}

.footer-qr {
  align-items: center;
  max-width: 120px;
}

.qr-tip {
  margin: 0;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.86);
  text-align: center;
}

.qr-box {
  width: 88px;
  height: 88px;
  flex: 0 0 88px;
  display: block;
  padding: 4px;
  border-radius: 8px;
  background: #fff;
  box-sizing: border-box;
  overflow: hidden;
}

.footer-qr img,
.qr-box img {
  width: 88px !important;
  height: 88px !important;
  max-width: 88px !important;
  max-height: 88px !important;
  display: block;
  object-fit: contain;
}

.footer-copy {
  width: 100%;
  box-sizing: border-box;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  margin: 36px 0 0;
  padding: 20px 24px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
  font-size: 13px;
  color: rgba(255, 255, 255, 0.86);
  line-height: 1.7;
}

.footer-copy span {
  display: block;
  width: 100%;
  text-align: center;
}

@media (max-width: 960px) {
  .nav {
    display: none;
  }

  .hero-inner,
  .card-grid,
  .service-columns,
  .footer-grid,
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-bottom: 96px;
  }

  .hero-visual {
    order: -1;
  }

  .hero-mascot {
    width: min(280px, 70vw);
  }

  .footer-qr {
    margin: 0 auto;
  }
}