:root {
  --navy: #062853;
  --blue: #0b4d89;
  --cyan: #4db2d4;
  --gold: #c8ad62;
  --ink: #132238;
  --muted: #68768a;
  --line: #dbe4ee;
  --paper: #f6f8fb;
  --white: #ffffff;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  background: var(--paper);
  letter-spacing: 0;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 76px;
  padding: 12px clamp(18px, 4vw, 64px);
  border-bottom: 1px solid rgba(219, 228, 238, 0.85);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(18px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  font-weight: 700;
  color: var(--navy);
}

.brand img {
  width: 54px;
  height: 44px;
  object-fit: contain;
}

.brand span {
  max-width: min(42vw, 520px);
  line-height: 1.28;
}

.header-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 18px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 26px;
  color: #43536a;
  font-size: 15px;
  white-space: nowrap;
}

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

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  color: inherit;
}

.nav-link[hidden] {
  display: none !important;
}

.nav-link::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 3px;
  border-radius: 999px;
  background: var(--gold);
  content: "";
  opacity: 0;
  transform: scaleX(0.35);
  transition: opacity 180ms ease, transform 180ms ease;
}

.nav-link.is-active {
  color: var(--blue);
  font-weight: 800;
}

.nav-link.is-active::after {
  opacity: 1;
  transform: scaleX(1);
}

.language-switcher {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #f7fafc;
  white-space: nowrap;
}

.language-option {
  min-width: 38px;
  height: 32px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: #43536a;
  font: inherit;
  font-size: 13px;
  font-weight: 800;
  cursor: pointer;
}

.language-option.is-active {
  background: var(--blue);
  color: var(--white);
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(280px, 0.55fr);
  gap: clamp(28px, 5vw, 70px);
  min-height: calc(100vh - 76px);
  padding: clamp(56px, 8vw, 110px) clamp(20px, 6vw, 88px) clamp(38px, 6vw, 72px);
  overflow: hidden;
  color: var(--white);
  background:
    linear-gradient(110deg, rgba(6, 40, 83, 0.98), rgba(8, 76, 135, 0.88)),
    url("https://images.unsplash.com/photo-1578575437130-527eed3abbec?auto=format&fit=crop&w=1800&q=80") center/cover;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.5;
}

.route-line {
  position: absolute;
  height: 2px;
  transform: rotate(-14deg);
  transform-origin: left center;
  background: linear-gradient(90deg, transparent, rgba(77, 178, 212, 0.9), rgba(200, 173, 98, 0.85), transparent);
}

.route-one {
  top: 28%;
  left: 42%;
  width: 46%;
}

.route-two {
  top: 62%;
  left: 18%;
  width: 54%;
}

.port-card {
  position: absolute;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.08);
}

.port-card-a {
  right: 10%;
  top: 18%;
  width: 220px;
  height: 126px;
}

.port-card-b {
  left: 8%;
  bottom: 12%;
  width: 280px;
  height: 150px;
}

.hero-content {
  position: relative;
  z-index: 1;
  align-self: center;
  max-width: 780px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--gold);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero h1,
.section-heading h2,
.tracking-copy h2,
.contact-band h2 {
  margin: 0;
  line-height: 1.12;
}

.hero h1 {
  max-width: 720px;
  font-size: clamp(40px, 6vw, 78px);
  font-weight: 800;
}

.hero-copy {
  max-width: 640px;
  margin: 24px 0 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: 18px;
  line-height: 1.9;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 24px;
  border: 1px solid transparent;
  border-radius: 6px;
  font-weight: 700;
}

.btn.primary {
  background: var(--gold);
  color: #172033;
}

.btn.secondary {
  border-color: rgba(255, 255, 255, 0.36);
  color: var(--white);
}

.hero-panel {
  position: relative;
  z-index: 1;
  align-self: end;
  display: grid;
  gap: 18px;
  padding: 26px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  background: rgba(3, 24, 52, 0.64);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.28);
}

.hero-panel img {
  width: min(220px, 70%);
  height: auto;
}

.hero-panel strong {
  display: block;
  margin-bottom: 8px;
  font-size: 24px;
}

.hero-panel span {
  color: rgba(255, 255, 255, 0.72);
}

.section,
.tracking-section {
  padding: clamp(62px, 8vw, 104px) clamp(20px, 6vw, 88px);
}

.page-hero {
  padding: clamp(60px, 8vw, 110px) clamp(20px, 6vw, 88px);
  color: var(--white);
  background:
    linear-gradient(110deg, rgba(6, 40, 83, 0.98), rgba(8, 76, 135, 0.86)),
    url("https://images.unsplash.com/photo-1578575437130-527eed3abbec?auto=format&fit=crop&w=1800&q=80") center/cover;
}

.page-hero.compact-hero {
  padding-bottom: clamp(38px, 5vw, 64px);
}

.page-hero h1 {
  max-width: 920px;
  margin: 0;
  font-size: clamp(36px, 5vw, 64px);
  line-height: 1.12;
}

.page-hero p:not(.eyebrow) {
  max-width: 760px;
  margin: 22px 0 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: 18px;
  line-height: 1.85;
}

.intro-band {
  background: var(--white);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 34px;
}

.section-heading h2,
.tracking-copy h2,
.contact-band h2 {
  color: var(--navy);
  font-size: clamp(30px, 4vw, 48px);
}

.intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.7fr);
  gap: 34px;
  align-items: stretch;
}

.intro-grid article,
.metrics,
.tracking-widget {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.intro-grid article {
  padding: clamp(26px, 4vw, 42px);
}

.intro-grid h3,
.service-card h3 {
  margin: 0 0 14px;
  color: var(--navy);
  font-size: 22px;
}

.intro-grid p,
.service-card p,
.tracking-copy p,
.contact-band p {
  margin: 0;
  color: var(--muted);
  line-height: 1.9;
}

.intro-grid p + p {
  margin-top: 12px;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  overflow: hidden;
}

.metrics div {
  display: grid;
  align-content: center;
  gap: 10px;
  min-height: 180px;
  padding: 22px;
  border-left: 1px solid var(--line);
}

.metrics div:first-child {
  border-left: 0;
}

.metrics strong {
  color: var(--blue);
  font-size: 30px;
}

.metrics span {
  color: var(--muted);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.service-card {
  min-height: 236px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 40px rgba(20, 48, 85, 0.1);
}

.service-icon {
  display: inline-grid;
  place-items: center;
  width: 54px;
  height: 54px;
  margin-bottom: 24px;
  border-radius: 6px;
  background: #e8f2f8;
  color: var(--blue);
  font-size: 13px;
  font-weight: 900;
}

.tracking-section {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(320px, 1fr);
  gap: 36px;
  align-items: center;
  background:
    linear-gradient(135deg, rgba(246, 248, 251, 0.96), rgba(231, 239, 247, 0.98)),
    url("https://images.unsplash.com/photo-1494412574643-ff11b0a5c1c3?auto=format&fit=crop&w=1600&q=80") center/cover;
}

.tracking-copy p {
  max-width: 520px;
  margin-top: 18px;
}

.tracking-widget {
  padding: clamp(22px, 4vw, 34px);
  box-shadow: 0 24px 60px rgba(20, 48, 85, 0.1);
}

.tracking-form label {
  display: block;
  margin-bottom: 10px;
  color: var(--navy);
  font-weight: 800;
}

.tracking-input-row {
  display: grid;
  grid-template-columns: 1fr 112px;
  gap: 10px;
  align-items: start;
}

.tracking-input-row textarea,
.tracking-input-row button {
  border-radius: 6px;
  font: inherit;
}

.tracking-input-row textarea {
  width: 100%;
  min-height: 138px;
  border: 1px solid var(--line);
  padding: 14px 16px;
  outline: none;
  resize: vertical;
  line-height: 1.65;
}

.tracking-input-row textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 4px rgba(11, 77, 137, 0.12);
}

.tracking-input-row button {
  min-height: 50px;
  border: 0;
  background: var(--blue);
  color: var(--white);
  font-weight: 800;
  cursor: pointer;
}

.tracking-tip {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.tracking-result {
  margin-top: 24px;
  min-height: 244px;
}

.tracking-workspace {
  display: grid;
  grid-template-columns: minmax(280px, 0.38fr) minmax(0, 1fr);
  gap: 22px;
  min-height: 720px;
  padding: clamp(26px, 4vw, 46px) clamp(20px, 6vw, 88px) clamp(62px, 8vw, 104px);
  background: #eef3f8;
}

.tracking-sidebar,
.shipment-detail {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 18px 40px rgba(20, 48, 85, 0.08);
}

.tracking-sidebar {
  display: flex;
  flex-direction: column;
  min-height: 620px;
  padding: 20px;
}

.tracking-sidebar .tracking-form {
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.tracking-sidebar .tracking-form textarea {
  width: 100%;
  min-height: 138px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 14px 16px;
  font: inherit;
  line-height: 1.65;
  resize: vertical;
  outline: none;
}

.tracking-sidebar .tracking-form textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 4px rgba(11, 77, 137, 0.12);
}

.tracking-sidebar .tracking-form button {
  width: 100%;
  min-height: 48px;
  margin-top: 10px;
  border: 0;
  border-radius: 6px;
  background: var(--blue);
  color: var(--white);
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}

.tracking-sidebar .tracking-form button:disabled {
  cursor: wait;
  opacity: 0.68;
}

.tracking-list-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 18px 0 12px;
  color: var(--navy);
}

.tracking-list-head span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.shipment-list {
  display: grid;
  gap: 10px;
  overflow: auto;
  padding-right: 4px;
}

.shipment-list-item {
  display: grid;
  gap: 8px;
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  background: var(--white);
  color: var(--ink);
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.shipment-list-item:hover,
.shipment-list-item.is-active {
  border-color: rgba(11, 77, 137, 0.36);
  background: #eef6fb;
}

.shipment-row-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
}

.shipment-list-item strong {
  color: var(--navy);
}

.shipment-list-item em {
  flex: 0 0 auto;
  border-radius: 999px;
  padding: 4px 9px;
  background: var(--blue);
  color: var(--white);
  font-size: 12px;
  font-style: normal;
  font-weight: 900;
}

.shipment-list-item em.is-missing,
.status-pill.is-missing {
  background: #e9edf2;
  color: #59677a;
}

.shipment-list-item em.is-warehouse,
.status-pill.is-warehouse {
  background: #e8f2f8;
  color: var(--blue);
}

.shipment-list-item em.is-international,
.status-pill.is-international {
  background: var(--blue);
  color: var(--white);
}

.shipment-list-item em.is-customs,
.status-pill.is-customs {
  background: rgba(200, 173, 98, 0.24);
  color: #725b18;
}

.shipment-list-item em.is-delivery,
.status-pill.is-delivery {
  background: #dff3fb;
  color: #06698c;
}

.shipment-list-item em.is-signed,
.status-pill.is-signed {
  background: #def7e8;
  color: #137447;
}

.shipment-list-item em.is-exception,
.status-pill.is-exception {
  background: #fde8e8;
  color: #b42318;
}

.shipment-list-item span,
.shipment-list-item small {
  color: var(--muted);
  line-height: 1.45;
}

.shipment-list-item b {
  width: fit-content;
  border-radius: 6px;
  padding: 6px 9px;
  background: rgba(200, 173, 98, 0.18);
  color: #725b18;
  font-size: 12px;
  line-height: 1;
}

.shipment-detail {
  min-width: 0;
  padding: clamp(24px, 4vw, 36px);
}

.detail-placeholder {
  display: grid;
  place-items: center;
  align-content: center;
  gap: 12px;
  min-height: 560px;
  color: var(--muted);
  text-align: center;
}

.detail-placeholder img {
  width: 86px;
  height: auto;
  opacity: 0.8;
}

.detail-placeholder strong {
  color: var(--navy);
  font-size: 22px;
}

.detail-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
}

.detail-head h2 {
  margin: 0;
  color: var(--navy);
  font-size: clamp(28px, 4vw, 44px);
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 24px;
}

.detail-grid div {
  min-height: 104px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f7fafc;
}

.detail-grid span {
  display: block;
  margin-bottom: 10px;
  color: var(--muted);
  font-size: 13px;
}

.detail-grid strong {
  color: var(--navy);
  line-height: 1.45;
}

.detail-panel {
  margin-top: 24px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.not-found-panel {
  display: grid;
  gap: 10px;
  margin-top: 24px;
  padding: 28px;
  border: 1px dashed #c9d6e4;
  border-radius: 8px;
  background: #f7fafc;
  color: var(--muted);
}

.not-found-panel strong {
  color: var(--navy);
  font-size: 22px;
}

.detail-panel h3 {
  margin: 0 0 18px;
  color: var(--navy);
  font-size: 22px;
}

.detail-timeline {
  margin-top: 0;
}

.compact-empty {
  min-height: 180px;
  padding: 20px;
}

.empty-state {
  display: grid;
  place-items: center;
  gap: 8px;
  min-height: 220px;
  border: 1px dashed #c9d6e4;
  border-radius: 8px;
  color: var(--muted);
  text-align: center;
}

.empty-state strong {
  color: var(--navy);
}

.tracking-summary {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 18px;
  border-radius: 8px;
  background: #eef6fb;
}

.batch-notice {
  margin-bottom: 14px;
  padding: 12px 14px;
  border-left: 4px solid var(--gold);
  border-radius: 6px;
  background: #fff8e3;
  color: #725b18;
  font-weight: 700;
  line-height: 1.6;
}

.tracking-result-list {
  display: grid;
  gap: 16px;
}

.tracking-result-card {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.tracking-summary strong {
  display: block;
  margin-bottom: 6px;
  color: var(--navy);
}

.status-pill {
  align-self: start;
  white-space: nowrap;
  border-radius: 999px;
  padding: 8px 12px;
  background: rgba(200, 173, 98, 0.22);
  color: #725b18;
  font-weight: 800;
}

.timeline {
  display: grid;
  gap: 0;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.timeline li {
  position: relative;
  display: grid;
  grid-template-columns: 18px 1fr;
  gap: 12px;
  padding-bottom: 22px;
}

.timeline li::before {
  position: absolute;
  top: 20px;
  bottom: -2px;
  left: 5px;
  width: 2px;
  border-radius: 999px;
  background: #c9d6e4;
  content: "";
}

.timeline li:last-child {
  padding-bottom: 0;
}

.timeline li:last-child::before {
  display: none;
}

.timeline-dot {
  position: relative;
  z-index: 1;
  width: 12px;
  height: 12px;
  margin-top: 6px;
  border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 0 5px rgba(11, 77, 137, 0.12);
}

.timeline strong {
  display: block;
  color: var(--navy);
}

.timeline time {
  display: block;
  margin-bottom: 5px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 900;
}

.timeline span {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  line-height: 1.55;
}

.contact-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.8fr);
  gap: 30px;
  align-items: center;
  background: var(--white);
}

.contact-band p {
  margin-top: 16px;
}

.contact-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 104px;
  align-items: center;
  gap: 20px;
  padding: 24px;
  border-left: 4px solid var(--gold);
  background: #f7fafc;
  color: #43536a;
}

.contact-lines {
  display: grid;
  gap: 12px;
  min-width: 0;
}

.contact-line {
  display: block;
  line-height: 1.65;
  overflow-wrap: anywhere;
}

.contact-panel {
  min-width: 0;
}

.wechat-card {
  display: grid;
  place-items: center;
  gap: 6px;
  min-width: 0;
  padding-left: 20px;
  border-left: 1px solid var(--line);
  color: var(--muted);
  overflow: visible;
  position: relative;
  text-align: center;
}

.wechat-card img {
  width: 64px;
  height: 64px;
  max-width: 64px;
  max-height: 64px;
  background: var(--white);
  box-sizing: content-box;
  cursor: zoom-in;
  flex: 0 0 auto;
  object-fit: contain;
  padding: 5px;
  border: 1px solid rgba(17, 35, 64, 0.1);
  border-radius: 8px;
  box-shadow: 0 8px 20px rgba(20, 48, 85, 0.08);
  transform-origin: center right;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
  position: relative;
  z-index: 1;
}

.wechat-card img:hover,
.wechat-card img.is-zoomed {
  box-shadow: 0 18px 44px rgba(20, 48, 85, 0.18);
  transform: scale(2.25);
  z-index: 10;
}

.wechat-card img.is-zoomed {
  cursor: zoom-out;
}

.wechat-card strong {
  display: block;
  margin-bottom: 4px;
  color: var(--navy);
}

.wechat-card span {
  display: block;
  color: var(--muted);
  font-size: 13px;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 118px;
  padding: 24px;
  background: #071d3c;
  color: rgba(255, 255, 255, 0.78);
}

.site-footer img {
  width: 44px;
  height: 36px;
  object-fit: contain;
}

@media (max-width: 980px) {
  .site-header,
  .main-nav,
  .header-actions {
    align-items: flex-start;
  }

  .site-header {
    gap: 12px;
    flex-direction: column;
  }

  .brand span {
    max-width: none;
  }

  .header-actions {
    width: 100%;
    flex-direction: column;
    gap: 10px;
  }

  .main-nav {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .hero,
  .intro-grid,
  .tracking-section,
  .contact-band,
  .tracking-workspace {
    grid-template-columns: 1fr;
  }

  .tracking-sidebar {
    min-height: auto;
  }

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

  .detail-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero {
    min-height: auto;
  }

  .hero-panel {
    align-self: stretch;
  }

  .service-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .brand span {
    font-size: 15px;
  }

  .main-nav {
    gap: 18px;
  }

  .hero h1 {
    font-size: 38px;
  }

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

  .metrics,
  .service-grid {
    grid-template-columns: 1fr;
  }

  .metrics div {
    min-height: 126px;
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .metrics div:first-child {
    border-top: 0;
  }

  .tracking-input-row {
    grid-template-columns: 1fr;
  }

  .tracking-input-row textarea {
    min-height: 156px;
  }

  .tracking-summary {
    flex-direction: column;
  }

  .contact-list {
    grid-template-columns: 1fr;
    padding: 22px;
  }

  .contact-line:first-child {
    white-space: nowrap;
    font-size: 14px;
  }

  .wechat-card {
    grid-template-columns: auto 1fr;
    justify-content: start;
    text-align: left;
    padding-top: 14px;
    padding-left: 0;
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .wechat-card img {
    transform-origin: center left;
  }

  .detail-head {
    flex-direction: column;
  }

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