:root {
  --home-hero-max: 1240px;
  --home-orbit-size: 430px;
  --home-orbit-core: 132px;
  --home-orbit-inner: 250px;
  --home-orbit-duration: 42s;
  --home-orbit-counter-duration: 42s;
  --home-ledger-width: 680px;
  --home-feature-min-height: 390px;
  --home-status-row-height: 58px;
}

.home-hero {
  /* 满屏首屏必须配 flex 垂直居中:普通块级布局下内层 grid 不会随 min-height 拉伸,
     内容贴顶、折叠线之上留出三四百像素死区(2026-08-18 用户圈图病例) */
  min-height: calc(100svh - var(--header-height));
  display: flex;
  align-items: center;
  padding-top: clamp(30px, 5vw, 66px);
  padding-bottom: clamp(30px, 5vw, 58px);
  text-align: left;
}

.home-hero .hero-inner {
  max-width: var(--home-hero-max);
  width: 100%;
}

.home-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(360px, 0.82fr);
  align-items: center;
  gap: clamp(28px, 5vw, 72px);
}

.home-hero-copy {
  min-width: 0;
}

.home-hero h1 {
  max-width: 760px;
  margin-bottom: 18px;
}

.home-hero .hero-actions {
  justify-content: flex-start;
  margin-bottom: 18px;
}

.home-hero .hero-description {
  max-width: 690px;
}

.home-hero .trust-row {
  justify-content: flex-start;
  margin-bottom: 20px;
}

.hero-route-ledger {
  width: 100%;
  max-width: var(--home-ledger-width);
  border-top: 1px solid var(--color-line);
}

.hero-ledger-row {
  display: grid;
  grid-template-columns: 78px minmax(0, 1fr);
  align-items: start;
  gap: 12px;
  padding-top: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-line);
}

.hero-ledger-label {
  padding-top: 3px;
  color: var(--color-ink-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
}

.hero-platform-list,
.hero-flag-list {
  display: flex;
  min-width: 0;
  flex-wrap: wrap;
  align-items: center;
  gap: 9px 14px;
}

.hero-platform-item,
.route-flag-item {
  display: inline-flex;
  min-width: 0;
  align-items: center;
  gap: 6px;
  color: var(--color-ink-muted);
  font-size: 11.5px;
  white-space: nowrap;
}

.hero-platform-item svg {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
}

.route-flag-item svg {
  width: 23px;
  height: auto;
  flex-shrink: 0;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-xs);
}

.platform-fill {
  fill: currentColor;
}

.flag-white {
  fill: var(--color-white);
}

.flag-red {
  fill: var(--color-flag-red);
}

.flag-blue {
  fill: var(--color-flag-blue);
}

.flag-gold {
  fill: var(--color-flag-gold);
}

.flag-dark {
  fill: var(--color-flag-dark);
}

.orbit-visual {
  display: grid;
  min-width: 0;
  place-items: center;
}

.orbit-field {
  position: relative;
  width: min(100%, var(--home-orbit-size));
  aspect-ratio: 1;
  border-radius: var(--radius-pill);
  background: var(--color-panel);
  box-shadow: inset 0 0 0 1px var(--color-line);
}

.orbit-ring,
.orbit-axis,
.orbit-track,
.orbit-core,
.orbit-core-halo,
.orbit-node {
  position: absolute;
}

.orbit-ring {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
}

.orbit-ring-outer {
  inset: 7%;
}

.orbit-ring-inner {
  width: var(--home-orbit-inner);
  height: var(--home-orbit-inner);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border-style: dashed;
}

.orbit-axis {
  top: 50%;
  left: 50%;
  background: var(--color-line);
  transform: translate(-50%, -50%);
}

.orbit-axis-horizontal {
  width: 86%;
  height: 1px;
}

.orbit-axis-vertical {
  width: 1px;
  height: 86%;
}

.orbit-track {
  inset: 7%;
  border-radius: var(--radius-pill);
  animation: orbit-turn var(--home-orbit-duration) linear infinite;
}

.orbit-track-inner {
  inset: 21%;
  animation-direction: reverse;
  animation-duration: var(--home-orbit-counter-duration);
}

.orbit-label {
  position: absolute;
  display: inline-flex;
  min-height: 26px;
  align-items: center;
  padding: 4px 9px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  background: var(--color-canvas);
  color: var(--color-ink-muted);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.06em;
  animation: orbit-counter-turn var(--home-orbit-duration) linear infinite;
}

.orbit-track-inner .orbit-label {
  animation-direction: reverse;
  animation-duration: var(--home-orbit-counter-duration);
}

.orbit-label-one {
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
}

.orbit-label-two {
  top: 48%;
  right: -28px;
}

.orbit-label-three {
  bottom: -13px;
  left: 18%;
}

.orbit-label-four {
  top: 12%;
  left: -16px;
}

.orbit-label-five {
  right: -8px;
  bottom: 16%;
}

.orbit-core {
  top: 50%;
  left: 50%;
  z-index: 3;
  display: grid;
  width: var(--home-orbit-core);
  height: var(--home-orbit-core);
  place-items: center;
  padding: 20px;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-pill);
  background: var(--color-canvas);
  transform: translate(-50%, -50%);
  box-shadow: 0 0 0 12px var(--color-accent-faint), 0 0 0 28px var(--color-accent-soft);
}

.orbit-core-halo {
  inset: -1px;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-pill);
  opacity: 0.35;
  animation: orbit-pulse 3.6s ease-in-out infinite;
}

.orbit-core img {
  position: relative;
  z-index: 2;
  width: 48px;
  height: 48px;
}

.orbit-core strong {
  position: relative;
  z-index: 2;
  color: var(--color-accent);
  font-family: var(--font-display);
  font-size: 17px;
  line-height: 1;
}

.orbit-core small {
  position: relative;
  z-index: 2;
  color: var(--color-ink-muted);
  font-family: var(--font-mono);
  font-size: 7px;
  letter-spacing: 0.12em;
}

.orbit-node {
  z-index: 4;
  width: 10px;
  height: 10px;
  border: 2px solid var(--color-canvas);
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  box-shadow: 0 0 0 4px var(--color-accent-soft);
}

.orbit-node-one {
  top: 11%;
  left: 25%;
}

.orbit-node-two {
  top: 28%;
  right: 9%;
}

.orbit-node-three {
  right: 23%;
  bottom: 9%;
}

.orbit-node-four {
  bottom: 24%;
  left: 10%;
}

.fact-band {
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
  background: var(--color-panel);
}

.fact-band-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.fact-band-grid > div {
  min-width: 0;
  padding: 17px 22px;
  border-right: 1px solid var(--color-line);
}

.fact-band-grid > div:last-child {
  border-right: 0;
}

.fact-band span,
.fact-band strong {
  display: block;
}

.fact-band span {
  margin-bottom: 4px;
  color: var(--color-ink-muted);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.12em;
}

.fact-band strong {
  font-size: 14px;
}

.home-feature-browser .feature-detail-host {
  min-width: 0;
}

.home-feature-browser .feature-detail {
  min-height: var(--home-feature-min-height);
}

.home-feature-browser .feature-detail p:not(.mono-label):not(.feature-fact) {
  color: var(--color-ink-muted);
  font-size: 16px;
  line-height: 1.85;
}

.route-principles {
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
  background: var(--color-panel);
}

.principle-ledger {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--color-line);
  border-left: 1px solid var(--color-line);
}

.principle-entry {
  min-width: 0;
  padding: clamp(24px, 4vw, 38px);
  border-right: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
  background: var(--color-canvas);
}

.principle-entry h3 {
  font-size: 22px;
}

.principle-entry > p:last-child {
  margin-bottom: 0;
  color: var(--color-ink-muted);
}

.route-selection-note,
.traffic-pack-note {
  display: grid;
  grid-template-columns: minmax(190px, 0.58fr) minmax(0, 1.42fr);
  gap: clamp(22px, 4vw, 46px);
  margin-top: 24px;
  padding: clamp(22px, 4vw, 34px);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-panel);
}

.route-selection-note h3,
.traffic-pack-note h3 {
  margin-bottom: 0;
  font-size: 22px;
}

.route-selection-note > p,
.traffic-pack-copy p {
  color: var(--color-ink-muted);
}

.route-selection-note > p,
.traffic-pack-copy p:last-child {
  margin-bottom: 0;
}

.server-status-shell {
  margin-top: 24px;
  padding: 18px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-canvas);
}

.server-status-heading {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  color: var(--color-ink);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
}

.server-status {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.srv-row {
  display: grid;
  min-width: 0;
  min-height: var(--home-status-row-height);
  grid-template-columns: auto auto minmax(74px, 1fr) auto auto auto;
  align-items: center;
  gap: 9px;
  padding: 10px 12px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
}

.srv-dot {
  width: 7px;
  height: 7px;
  flex-shrink: 0;
  border-radius: var(--radius-pill);
  background: var(--color-success);
  box-shadow: 0 0 0 3px var(--color-accent-soft);
  animation: status-breathe 2.8s ease-in-out infinite;
}

.srv-flag {
  display: grid;
  width: 22px;
  height: 16px;
  flex-shrink: 0;
  place-items: center;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-xs);
  background: var(--color-canvas);
  font-size: 10px;
}

.srv-name {
  min-width: 0;
  overflow: hidden;
  color: var(--color-ink);
  font-weight: 700;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.srv-type {
  max-width: 100%;
  overflow: hidden;
  padding: 3px 7px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  color: var(--color-ink-muted);
  font-family: var(--font-mono);
  font-size: 9px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.srv-ms,
.srv-bw {
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 10px;
  white-space: nowrap;
}

.section-link-row {
  margin-top: 24px;
  margin-bottom: 0;
  text-align: right;
}

.pricing-preview {
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
  background: var(--color-panel);
}

.pricing-preview .plan-card {
  background: var(--color-canvas);
}

.traffic-pack-note {
  margin-top: 20px;
  background: var(--color-canvas);
}

.traffic-pack-copy {
  min-width: 0;
}

.faq-home-layout {
  max-width: var(--reading-width);
}

.faq-home-layout .section-head {
  max-width: 700px;
}

.home-end-promo {
  margin-top: 0;
}

.home-end-promo .mono-label {
  color: var(--promo-muted);
}

@keyframes orbit-turn {
  to {
    transform: rotate(360deg);
  }
}

@keyframes orbit-counter-turn {
  to {
    rotate: -360deg;
  }
}

@keyframes orbit-pulse {
  0%,
  100% {
    opacity: 0.25;
    transform: scale(0.98);
  }

  50% {
    opacity: 0.58;
    transform: scale(1.05);
  }
}

@keyframes status-breathe {
  0%,
  100% {
    opacity: 0.58;
  }

  50% {
    opacity: 1;
  }
}

@media (max-width: 1080px) {
  .home-hero-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
    gap: 28px;
  }

  .orbit-field {
    width: min(100%, 370px);
  }

  .server-status {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 960px) {
  .home-hero {
    min-height: auto;
  }

  .home-hero-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .orbit-visual {
    margin-top: 8px;
  }

  .orbit-field {
    width: min(82vw, 390px);
  }

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

  .fact-band-grid > div:nth-child(2) {
    border-right: 0;
  }

  .fact-band-grid > div:nth-child(-n + 2) {
    border-bottom: 1px solid var(--color-line);
  }

  .principle-ledger {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 768px) {
  .home-hero {
    padding-top: 28px;
  }

  .home-hero-copy {
    text-align: center;
  }

  .home-hero .hero-actions,
  .home-hero .trust-row {
    justify-content: center;
  }

  .home-hero .hero-description {
    margin-inline: auto;
  }

  .hero-route-ledger {
    margin-inline: auto;
    text-align: left;
  }

  .orbit-field {
    width: min(88vw, 340px);
  }

  .orbit-label {
    font-size: 8px;
  }

  .feature-detail-host {
    display: none;
  }

  .home-feature-browser .feature-index {
    gap: 10px;
  }

  .home-feature-browser .feature-index > .feature-detail {
    min-height: 0;
    margin-top: -5px;
    padding: 22px;
  }

  .route-selection-note,
  .traffic-pack-note {
    grid-template-columns: minmax(0, 1fr);
  }

  .srv-row {
    grid-template-columns: auto auto minmax(70px, 1fr) auto auto;
  }

  .srv-bw {
    grid-column: 3 / -1;
    justify-self: end;
  }
}

@media (max-width: 640px) {
  :root {
    --home-orbit-core: 106px;
    --home-orbit-inner: 190px;
  }

  .home-hero {
    padding-right: var(--gutter);
    padding-left: var(--gutter);
  }

  .home-hero .hero-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .home-hero .hero-actions .btn {
    min-width: 0;
    padding-inline: 14px;
  }

  .hero-ledger-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 7px;
  }

  .hero-ledger-label {
    padding-top: 0;
  }

  .hero-platform-list,
  .hero-flag-list {
    justify-content: center;
  }

  .orbit-field {
    width: min(88vw, 290px);
  }

  .orbit-label-two {
    right: -12px;
  }

  .orbit-label-four {
    left: -8px;
  }

  .orbit-core {
    padding: 15px;
    box-shadow: 0 0 0 9px var(--color-accent-faint), 0 0 0 20px var(--color-accent-soft);
  }

  .orbit-core img {
    width: 38px;
    height: 38px;
  }

  .fact-band-grid > div {
    padding: 14px 12px;
  }

  .fact-band strong {
    font-size: 12px;
  }

  .principle-entry {
    padding: 22px;
  }

  .server-status-shell {
    padding: 13px;
  }

  .srv-row {
    grid-template-columns: auto auto minmax(58px, 1fr) auto;
    gap: 7px;
  }

  .srv-type {
    grid-column: 3 / -1;
    justify-self: start;
  }

  .srv-ms {
    grid-column: 3;
  }

  .srv-bw {
    grid-column: 4;
  }

  .section-link-row {
    text-align: left;
  }
}

@media (max-width: 380px) {
  .hero-platform-list,
  .hero-flag-list {
    gap: 8px 10px;
  }

  .hero-platform-item,
  .route-flag-item {
    font-size: 10.5px;
  }

  .orbit-field {
    width: 260px;
  }

  .orbit-label-three {
    left: 10%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .orbit-track,
  .orbit-label,
  .orbit-core-halo,
  .srv-dot {
    animation: none;
  }
}