.page-home {
  --card-cut: 14px;
  scroll-behavior: smooth;
  color: var(--color-charcoal);
  background: var(--color-cream);
  font-family: var(--font-body);
  line-height: 1.75;
}

.page-home a {
  text-decoration: none;
}

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

.page-home .section-block {
  padding: 44px 22px;
}

.page-home .section-eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-orange);
  margin: 0 0 6px;
}

.page-home .section-title {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 28px;
  line-height: 1.3;
  letter-spacing: -0.01em;
  margin: 0 0 12px;
  color: var(--color-navy);
}

.page-home .section-lead {
  margin: 0;
  color: #566180;
  font-size: 15px;
}

.page-home .text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-head);
  font-size: 14px;
  font-weight: 700;
  color: var(--color-navy);
  border-bottom: 2px solid var(--color-gold);
  padding-bottom: 2px;
  margin-top: 10px;
  transition: color 0.25s, border-color 0.25s;
}

.page-home .text-link:hover,
.page-home .text-link:focus-visible {
  color: var(--color-orange);
  border-color: var(--color-orange);
}

.page-home .nav-overline {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(245, 243, 238, 0.55);
  margin: 0 0 12px;
}

.page-home .version-chip,
.page-home .batch-chip {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-cream);
  border: 1px solid rgba(201, 169, 97, 0.6);
  padding: 4px 10px;
  border-radius: 999px;
  display: inline-block;
}

.page-home .batch-chip {
  border-color: rgba(255, 122, 41, 0.55);
  color: #ffd2b3;
}

.page-home .media-note {
  font-family: var(--font-mono);
  font-size: 12px;
  color: #7a8496;
  margin-top: 8px;
  text-align: right;
}

.page-home .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 22px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 14px;
  border-radius: var(--radius);
  transition: background 0.25s, color 0.25s, border-color 0.25s, box-shadow 0.25s;
}

.page-home .btn-gold {
  background: var(--color-gold);
  color: var(--color-navy);
}

.page-home .btn-gold:hover,
.page-home .btn-gold:focus-visible {
  background: #d6b96f;
  color: #061225;
  box-shadow: 0 6px 22px rgba(201, 169, 97, 0.35);
}

.page-home .btn-outline {
  border: 2px solid var(--color-navy);
  color: var(--color-navy);
}

.page-home .btn-outline:hover,
.page-home .btn-outline:focus-visible {
  border-color: var(--color-orange);
  color: var(--color-orange);
  box-shadow: 0 4px 16px rgba(255, 122, 41, 0.18);
}

.page-home .crumb {
  font-family: var(--font-mono);
  font-size: 12px;
  color: #8792a5;
  margin: 0 0 18px;
  letter-spacing: 0.02em;
}

.page-home .crumb-sep {
  color: #b3bcc8;
  margin: 0 4px;
}

.page-home .brand-canal {
  display: flex;
  flex-direction: column;
  background: var(--color-navy);
  color: #eef0f4;
  padding: 28px 22px 24px;
  position: relative;
  overflow: hidden;
  gap: 24px;
}

.page-home .brand-canal::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--color-gold) 0%, var(--color-orange) 50%, transparent 100%);
}

.page-home .canal-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  color: inherit;
}

.page-home .canal-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  font-family: var(--font-head);
  font-size: 22px;
  font-weight: 900;
  color: var(--color-navy);
  background: linear-gradient(135deg, var(--color-gold), #e3c98a);
  clip-path: polygon(10px 0, 100% 0, 100% 42px, calc(100% - 10px) 100%, 0 100%, 0 10px);
  flex: 0 0 auto;
}

.page-home .canal-name {
  display: block;
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.page-home .canal-sub {
  display: block;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 4px;
}

.page-home .canal-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.page-home .canal-link,
.page-home .rail-link {
  color: rgba(245, 243, 238, 0.82);
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 600;
  padding: 7px 6px;
  border-left: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}

.page-home .canal-link:hover,
.page-home .canal-link:focus-visible,
.page-home .rail-link:hover,
.page-home .rail-link:focus-visible {
  color: #ffffff;
  border-left-color: var(--color-orange);
  background: rgba(255, 122, 41, 0.08);
}

.page-home .canal-link.is-current {
  color: var(--color-gold);
  border-left-color: var(--color-gold);
  font-weight: 800;
}

.page-home .canal-rail {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.page-home .rail-link {
  font-family: var(--font-mono);
  font-size: 13px;
  padding: 5px 6px;
  color: rgba(245, 243, 238, 0.62);
}

.page-home .canal-actions {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
}

.page-home .canal-note {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.55);
  margin: 2px 0 0;
}

.page-home .canal-foot {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}

.page-home .window-halo {
  position: relative;
  background: #ffffff;
  border: 1px solid var(--color-line);
  box-shadow: var(--shadow);
  padding: 28px 22px 34px;
}

.page-home .window-halo::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 26px;
  right: 26px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-gold) 0 40px, transparent 40px 52px, var(--color-navy) 52px calc(100% - 52px), transparent calc(100% - 52px) calc(100% - 40px), var(--color-orange) calc(100% - 40px) 100%);
}

.page-home .window-halo::after {
  content: "窗口 01 / BV-WINDOW";
  position: absolute;
  top: 14px;
  right: 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--color-line);
}

.page-home .window-ruler {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  display: flex;
  justify-content: space-between;
  padding: 0 18px;
  pointer-events: none;
}

.page-home .window-ruler i {
  width: 1px;
  height: 12px;
  background: var(--color-line);
  display: block;
}

.page-home .portal-title {
  font-family: var(--font-head);
  font-size: 40px;
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.12;
  margin: 0 0 6px;
  color: var(--color-navy);
}

.page-home .portal-sub {
  font-family: var(--font-head);
  font-size: 22px;
  font-weight: 700;
  color: var(--color-gold);
  margin: 0 0 16px;
  letter-spacing: -0.01em;
}

.page-home .portal-desc {
  font-size: 16px;
  color: #566180;
  margin: 0 0 24px;
  max-width: 52ch;
}

.page-home .window-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}

.page-home .portal-img {
  width: 100%;
  max-width: 640px;
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 16px 100%, 0 calc(100% - 16px));
}

.page-home .portal-card-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: 26px;
}

.page-home .pass-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 18px 18px 16px 22px;
  background: var(--color-cream);
  border: 1px solid var(--color-line);
  color: var(--color-charcoal);
  clip-path: polygon(12px 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%, 0 12px);
  transition: background 0.25s, transform 0.25s;
}

.page-home .pass-card:hover,
.page-home .pass-card:focus-visible {
  background: var(--color-pale-gold);
  transform: translateY(-3px);
}

.page-home .pass-num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-orange);
  margin-bottom: 2px;
}

.page-home .pass-title {
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 800;
  color: var(--color-navy);
}

.page-home .pass-desc {
  font-size: 13px;
  color: #68748b;
}

.page-home .opt-log {
  background: #fdfcfa;
}

.page-home .opt-head {
  margin-bottom: 28px;
  padding-bottom: 16px;
  border-bottom: 1px dashed var(--color-line);
}

.page-home .opt-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-home .opt-main {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-home .optimization-card {
  position: relative;
  background: #ffffff;
  border: 1px solid var(--color-line);
  border-left: 4px solid var(--color-navy);
  padding: 20px 18px 18px 22px;
  transition: border-left-color 0.25s, box-shadow 0.25s;
}

.page-home .optimization-card:hover,
.page-home .optimization-card:focus-within {
  border-left-color: var(--color-orange);
  box-shadow: 0 8px 24px rgba(10, 31, 68, 0.07);
}

.page-home .opt-index {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-gold);
  display: block;
  margin-bottom: 6px;
  letter-spacing: 0.1em;
}

.page-home .opt-card-title {
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 800;
  margin: 0 0 6px;
  color: var(--color-navy);
}

.page-home .opt-copy {
  margin: 0;
  font-size: 15px;
  color: #4e5a70;
}

.page-home .opt-aside {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.page-home .opt-tabs {
  background: #ffffff;
  border: 1px solid var(--color-line);
  padding: 18px;
}

.page-home .tab-input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.page-home .tab-bar {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--color-line);
  margin-bottom: 16px;
}

.page-home .tab-btn {
  font-family: var(--font-head);
  font-size: 14px;
  font-weight: 700;
  padding: 10px 16px;
  cursor: pointer;
  color: #7a8496;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  user-select: none;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.page-home .tab-btn:hover {
  color: var(--color-navy);
}

.page-home #tab-note:checked ~ .tab-bar label[for="tab-note"],
.page-home #tab-preview:checked ~ .tab-bar label[for="tab-preview"] {
  color: var(--color-navy);
  border-bottom-color: var(--color-orange);
}

.page-home #tab-note:checked ~ .panel-note,
.page-home #tab-preview:checked ~ .panel-preview {
  display: block;
}

.page-home #tab-note:checked ~ .panel-preview,
.page-home #tab-preview:checked ~ .panel-note {
  display: none;
}

.page-home .note-list {
  margin: 0;
  padding-left: 18px;
  font-size: 14px;
  color: #4e5a70;
  display: grid;
  gap: 8px;
}

.page-home .preview-label {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 15px;
  color: var(--color-navy);
  margin: 0 0 6px;
}

.page-home .preview-text {
  margin: 0;
  font-size: 14px;
  color: #4e5a70;
}

.page-home .opt-img {
  width: 100%;
  max-width: 480px;
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
}

.page-home .coverage {
  background: var(--color-navy);
  color: #eef0f4;
}

.page-home .coverage .section-eyebrow {
  color: var(--color-orange);
}

.page-home .coverage .section-title {
  color: #ffffff;
}

.page-home .coverage-head {
  margin-bottom: 26px;
}

.page-home .coverage-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.page-home .coverage-copy p {
  font-size: 15px;
  color: rgba(245, 243, 238, 0.8);
  margin: 0 0 14px;
  max-width: 48ch;
}

.page-home .stamp-label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-gold);
  border: 1px solid rgba(201, 169, 97, 0.7);
  padding: 6px 14px;
  letter-spacing: 0.06em;
  transform: rotate(-1deg);
  border-radius: 2px;
  margin-top: 6px;
}

.page-home .coverage-map {
  position: relative;
  min-height: 260px;
  background: #0d254f;
  border: 1px solid rgba(204, 214, 224, 0.16);
  border-radius: var(--radius);
  padding: 8px;
}

.page-home .coverage-svg {
  width: 100%;
  height: 220px;
  display: block;
}

.page-home .city-conn {
  fill: none;
  stroke: var(--color-gold);
  stroke-width: 2;
  stroke-dasharray: 6 4;
}

.page-home .conn-dot {
  fill: var(--color-orange);
  stroke: var(--color-gold);
  stroke-width: 2;
}

.page-home .city-dot {
  position: absolute;
  font-family: var(--font-head);
  font-weight: 800;
  color: #ffffff;
  cursor: default;
}

.page-home .city-dot::before {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: radial-gradient(circle, #fff 0%, var(--color-orange) 55%, var(--color-orange) 100%);
  border: 2px solid var(--color-gold);
  left: -28px;
  top: 50%;
  transform: translateY(-50%);
}

.page-home .hz {
  left: 34px;
  top: 125px;
}

.page-home .nb {
  left: 172px;
  top: 60px;
}

.page-home .wz {
  left: 276px;
  top: 114px;
}

.page-home .city-label {
  display: block;
  font-size: 16px;
  color: #ffffff;
}

.page-home .city-meta {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-gold);
  margin-top: 2px;
  opacity: 0;
  transition: opacity 0.2s;
  white-space: nowrap;
}

.page-home .city-dot:hover .city-meta,
.page-home .city-dot:focus-visible .city-meta,
.page-home .city-dot:focus .city-meta {
  opacity: 1;
}

.page-home .map-legend {
  position: absolute;
  left: 14px;
  bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: rgba(255, 255, 255, 0.6);
}

.page-home .legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-orange);
  border: 2px solid var(--color-gold);
}

.page-home .legend-line {
  width: 24px;
  height: 2px;
  background: repeating-linear-gradient(90deg, var(--color-gold) 0 4px, transparent 4px 8px);
}

.page-home .coverage-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 28px;
}

.page-home .stat-item {
  text-align: center;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(204, 214, 224, 0.16);
  padding: 18px 8px;
  clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
}

.page-home .stat-num {
  display: block;
  font-family: var(--font-head);
  font-size: 26px;
  font-weight: 900;
  color: var(--color-gold);
  letter-spacing: -0.02em;
}

.page-home .stat-unit {
  display: block;
  font-size: 13px;
  color: rgba(245, 243, 238, 0.66);
  margin-top: 2px;
}

.page-home .section-hub {
  background: var(--color-cream);
}

.page-home .hub-head {
  margin-bottom: 24px;
}

.page-home .hub-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-home .hub-card {
  display: flex;
  flex-direction: column;
  background: #ffffff;
  border: 1px solid var(--color-line);
  padding: 20px;
  color: var(--color-charcoal);
  clip-path: polygon(14px 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%, 0 14px);
  transition: border-color 0.25s, background 0.25s, transform 0.25s;
}

.page-home .hub-card:hover,
.page-home .hub-card:focus-visible {
  border-color: var(--color-orange);
  background: var(--color-pale-gold);
  transform: translateY(-3px);
}

.page-home .hub-card-code {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--color-orange);
  margin-bottom: 8px;
}

.page-home .hub-card-title {
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 800;
  color: var(--color-navy);
  margin-bottom: 4px;
}

.page-home .hub-card-desc {
  font-size: 14px;
  color: #68748b;
}

.page-home .hub-extra {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-top: 26px;
  background: #ffffff;
  border: 1px solid var(--color-line);
  padding: 18px;
}

.page-home .hub-img {
  width: 100%;
  max-width: 520px;
}

.page-home .hub-extra-copy p {
  margin: 0 0 14px;
  font-size: 15px;
  color: #4e5a70;
}

.page-home .hub-extra-title {
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 800;
  color: var(--color-navy);
  margin: 0 0 8px;
}

.page-home .trust-zone {
  background: linear-gradient(160deg, #fdfcfa 0%, #f5f3ee 100%);
}

.page-home .trust-panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  background: rgba(255, 255, 255, 0.75);
  border: 1px solid var(--color-line);
  padding: 24px;
}

.page-home .trust-list {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-home .trust-list li {
  position: relative;
  padding-left: 28px;
  font-size: 15px;
  color: #3b465b;
}

.page-home .trust-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 12px;
  height: 12px;
  border-left: 3px solid var(--color-gold);
  border-bottom: 3px solid var(--color-gold);
  transform: rotate(-45deg);
}

.page-home .trust-visual {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.page-home .trust-img {
  width: 100%;
  max-width: 800px;
  height: auto;
}

@media (min-width: 640px) {
  .page-home .section-block {
    padding: 56px 32px;
  }

  .page-home .portal-title {
    font-size: 48px;
  }

  .page-home .window-grid {
    grid-template-columns: 1fr 0.85fr;
    align-items: center;
  }

  .page-home .portal-card-row {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-home .opt-main,
  .page-home .hub-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-home .coverage-grid {
    grid-template-columns: 0.9fr 1.1fr;
  }

  .page-home .hub-extra {
    grid-template-columns: 0.9fr 1.1fr;
    align-items: center;
  }
}

@media (min-width: 1040px) {
  .page-home .brand-canal {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    width: var(--header-width);
    padding: 36px 30px 30px;
    gap: 26px;
    z-index: 50;
  }

  .page-home .page-scroll {
    margin-left: var(--header-width);
  }

  .page-home .section-block {
    padding: 72px 48px;
  }

  .page-home .portal-title {
    font-size: 56px;
  }

  .page-home .window-halo {
    padding: 44px 44px 46px;
  }

  .page-home .opt-grid {
    grid-template-columns: 1fr 0.62fr;
    gap: 40px;
  }

  .page-home .opt-main {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .page-home .coverage-stats .stat-item {
    padding: 26px 8px;
  }

  .page-home .stat-num {
    font-size: 34px;
  }

  .page-home .hub-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-home .hub-extra {
    padding: 28px;
  }

  .page-home .trust-panel {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    padding: 36px;
  }

  .page-home .coverage-map {
    min-height: 300px;
  }

  .page-home .coverage-svg {
    height: 260px;
  }
}