.page-home {
  --home-cut: 14px;
  --home-gap: 18px;
  --home-rail-w: 260px;
}

.page-home .section {
  scroll-margin-top: calc(var(--head-h) + 20px);
}

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

/* ---------- 首屏 ---------- */
.page-home .hero {
  position: relative;
  overflow: hidden;
  padding: 32px 0 44px;
  border-bottom: 1px solid var(--edge);
  background:
    radial-gradient(120% 90% at 100% 0%, rgba(11, 61, 46, .55) 0%, rgba(10, 26, 47, 0) 62%);
}

.page-home .hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.page-home .hero-bg img {
  position: absolute;
  right: -12%;
  bottom: -14%;
  width: 120%;
  height: auto;
  opacity: .22;
  object-fit: cover;
  mask-image: linear-gradient(200deg, rgba(0,0,0,.9), rgba(0,0,0,0) 78%);
  -webkit-mask-image: linear-gradient(200deg, rgba(0,0,0,.9), rgba(0,0,0,0) 78%);
}

.page-home .hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 26px;
}

.page-home .hero-eyebrow {
  margin: 0 0 14px;
  color: var(--text-3);
}

.page-home .hero-title {
  margin: 0 0 16px;
  font-family: var(--font-sans);
  font-size: clamp(34px, 9vw, 66px);
  line-height: 1.06;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--text);
}

.page-home .hero-title::after {
  content: "";
  display: block;
  width: 72px;
  height: 5px;
  margin-top: 18px;
  background: linear-gradient(90deg, var(--c-red) 0 60%, var(--c-yellow) 60% 100%);
  clip-path: polygon(0 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
}

.page-home .hero-lead {
  margin: 0 0 20px;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-2);
}

.page-home .hero-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 24px;
  padding: 0;
  list-style: none;
}

.page-home .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-home .hero-index {
  border: 1px solid var(--edge);
  background: var(--glass);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 20px 18px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--home-cut)), calc(100% - var(--home-cut)) 100%, 0 100%);
}

.page-home .index-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--edge);
}

.page-home .index-title {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--text);
}

.page-home .index-stamp {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--c-yellow);
}

.page-home .index-stats {
  margin: 14px 0 16px;
}

.page-home .index-stats .stat {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px dashed rgba(30, 51, 80, .9);
}

.page-home .index-stats .stat:last-child {
  border-bottom: 0;
}

.page-home .index-stats .stat-value {
  flex: 0 0 auto;
  min-width: 76px;
  color: var(--text);
}

.page-home .index-stats .stat-label {
  font-size: 13px;
  line-height: 1.5;
  color: var(--text-3);
}

.page-home .index-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  padding-top: 14px;
  border-top: 1px solid var(--edge);
}

.page-home .jump-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--text-2);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 2px solid transparent;
  transition: border-color .18s var(--ease), color .18s var(--ease);
}

.page-home .jump-link span {
  color: var(--c-yellow);
}

.page-home .jump-link:hover,
.page-home .jump-link:focus-visible {
  color: var(--text);
  border-bottom-color: var(--c-yellow);
}

/* ---------- 章节公共 ---------- */
.page-home .stage-head {
  max-width: 780px;
}

.page-home .stage-head .section-lead {
  color: var(--text-2);
}

.page-home .panel-num {
  display: inline-block;
  margin-right: 8px;
  padding: 1px 7px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--c-navy);
  background: var(--c-yellow);
  clip-path: polygon(0 0, 100% 0, calc(100% - 6px) 100%, 0 100%);
}

/* ---------- 01 聚合面板 ---------- */
.page-home .panel-stage {
  background: linear-gradient(180deg, rgba(11, 61, 46, .34) 0%, rgba(10, 26, 47, 0) 46%);
}

.page-home .board {
  display: grid;
  gap: var(--home-gap);
  margin-top: 26px;
}

.page-home .board-rail {
  border: 1px solid var(--edge);
  background: var(--surface);
  padding: 16px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--home-cut)), calc(100% - var(--home-cut)) 100%, 0 100%);
}

.page-home .rail-head {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--text-3);
}

.page-home .rail-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 4px;
}

.page-home .rail-item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 12px;
  border-left: 3px solid transparent;
  background: rgba(10, 26, 47, .55);
  transition: border-color .18s var(--ease), background-color .18s var(--ease), transform .18s var(--ease);
}

.page-home .rail-item:hover {
  border-left-color: var(--c-red);
  background: rgba(18, 35, 61, .95);
  transform: translateX(2px);
}

.page-home .rail-item.is-active {
  border-left-color: var(--c-yellow);
  background: rgba(18, 35, 61, 1);
}

.page-home .rail-name {
  font-size: 14px;
  color: var(--text);
}

.page-home .rail-round {
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--text-3);
}

.page-home .rail-foot {
  margin: 12px 0 0;
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--c-ok);
}

.page-home .board-flow {
  border: 1px solid var(--edge);
  background: var(--surface);
  padding: 16px;
  clip-path: polygon(0 0, 100% 0, 100% 100%, var(--home-cut) 100%, 0 calc(100% - var(--home-cut)));
}

.page-home .flow-head {
  display: none;
}

.page-home .flow-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-home .flow-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px 14px;
  align-items: center;
  padding: 12px;
  border: 1px solid rgba(30, 51, 80, .9);
  background: rgba(10, 26, 47, .5);
  transition: border-color .18s var(--ease), background-color .18s var(--ease);
}

.page-home .flow-row:hover {
  border-color: var(--c-red);
  background: rgba(10, 26, 47, .85);
}

.page-home .flow-league {
  font-size: 14px;
  color: var(--text);
}

.page-home .flow-league em {
  display: block;
  margin-top: 2px;
  font-style: normal;
  font-size: 12px;
  color: var(--text-3);
}

.page-home .flow-cards {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 15px;
  color: var(--text);
}

.page-home .flow-goals {
  font-size: 18px;
  color: var(--text);
}

.page-home .flow-state {
  justify-self: end;
}

.page-home .chip {
  display: inline-block;
  width: 11px;
  height: 15px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 4px), calc(100% - 4px) 100%, 0 100%);
}

.page-home .chip-y {
  background: var(--c-yellow);
}

.page-home .chip-r {
  background: var(--c-red);
}

.page-home .flow-note {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--edge);
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-3);
}

.page-home .board-media {
  margin: 26px 0 0;
}

/* ---------- 02 版本对照 ---------- */
.page-home .version-stage .meter-block {
  margin-top: 26px;
  padding: 20px 18px;
  border: 1px solid var(--edge);
  background: var(--surface);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--home-cut)), calc(100% - var(--home-cut)) 100%, 0 100%);
}

.page-home .meter-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 6px 14px;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px dashed rgba(30, 51, 80, .9);
}

.page-home .meter-row:last-child {
  border-bottom: 0;
}

.page-home .meter-label {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0;
  font-size: 13px;
  color: var(--text-2);
}

.page-home .meter-label .mono {
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--text-3);
}

.page-home .meter-row.is-current .meter-label .mono {
  color: var(--c-yellow);
}

.page-home .meter-desc {
  font-size: 12px;
  color: var(--text-3);
}

.page-home .meter-track {
  grid-column: 1 / -1;
  height: 10px;
  background: rgba(10, 26, 47, .9);
  border: 1px solid rgba(30, 51, 80, .9);
}

.page-home .meter-fill {
  display: block;
  height: 100%;
}

.page-home .meter-fill--slow {
  width: 100%;
  background: linear-gradient(90deg, rgba(138, 148, 166, .55), rgba(138, 148, 166, .25));
}

.page-home .meter-fill--fast {
  width: 25%;
  background: linear-gradient(90deg, var(--c-red), var(--c-yellow));
}

.page-home .meter-value {
  margin: 0;
  font-size: 24px;
  color: var(--text);
  text-align: right;
}

.page-home .meter-value .unit {
  margin-left: 3px;
  font-size: 12px;
  color: var(--text-3);
}

.page-home .timeline {
  margin: 28px 0 0;
  padding: 0 0 0 18px;
  list-style: none;
  border-left: 1px solid var(--edge);
}

.page-home .tl-item {
  position: relative;
  padding: 0 0 24px 18px;
}

.page-home .tl-item:last-child {
  padding-bottom: 0;
}

.page-home .tl-item::before {
  content: "";
  position: absolute;
  left: -24px;
  top: 6px;
  width: 11px;
  height: 11px;
  background: var(--c-line);
  transform: rotate(45deg);
}

.page-home .tl-item.is-current::before {
  background: var(--c-red);
}

.page-home .tl-year {
  display: block;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--c-yellow);
}

.page-home .tl-title {
  margin: 4px 0 6px;
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
}

.page-home .tl-body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-2);
}

.page-home .version-stage .media-frame {
  margin: 28px 0 0;
}

.page-home .version-link {
  margin: 20px 0 0;
}

/* ---------- 03 功能主线 ---------- */
.page-home .feature-stage {
  background: linear-gradient(180deg, rgba(11, 61, 46, .32) 0%, rgba(10, 26, 47, 0) 52%);
}

.page-home .panel-stack {
  margin-top: 26px;
  display: grid;
  gap: 14px;
}

.page-home .feature-row {
  display: grid;
  gap: 10px;
  padding: 18px;
  border: 1px solid var(--edge);
  background: var(--surface);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--home-cut)), calc(100% - var(--home-cut)) 100%, 0 100%);
  transition: transform .2s var(--ease), border-color .2s var(--ease);
}

.page-home .feature-row:hover {
  transform: translateY(-2px);
  border-color: var(--c-red);
}

.page-home .feature-num {
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--c-red);
}

.page-home .feature-body .panel-title {
  margin: 0 0 8px;
  font-size: 17px;
  color: var(--text);
}

.page-home .feature-body p {
  margin: 0 0 8px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-2);
}

.page-home .feature-body strong.num {
  color: var(--c-yellow);
  font-size: 16px;
}

.page-home .feature-meta {
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--text-3);
}

.page-home .feature-link {
  align-self: start;
  font-size: 14px;
  color: var(--c-yellow);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  padding-bottom: 2px;
  transition: border-color .18s var(--ease);
}

.page-home .feature-link:hover,
.page-home .feature-link:focus-visible {
  border-bottom-color: var(--c-yellow);
}

.page-home .devices-media {
  margin: 28px 0 0;
}

/* ---------- 04 支持入口 ---------- */
.page-home .support-grid {
  margin-top: 26px;
  display: grid;
  gap: 20px;
}

.page-home .step-list {
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
  counter-reset: none;
  display: grid;
  gap: 14px;
}

.page-home .step-item {
  padding: 16px 18px;
  border-left: 3px solid var(--c-yellow);
  background: rgba(18, 35, 61, .7);
}

.page-home .step-num {
  display: block;
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--c-yellow);
}

.page-home .step-item h3 {
  margin: 6px 0 6px;
  font-size: 16px;
  color: var(--text);
}

.page-home .step-item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-2);
}

.page-home .support-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 0;
}

.page-home .support-facts {
  padding: 20px 18px;
  border: 1px solid var(--edge);
  background: var(--glass);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--home-cut)), calc(100% - var(--home-cut)) 100%, 0 100%);
}

.page-home .support-facts .panel-title {
  margin: 0 0 14px;
  font-size: 15px;
  color: var(--text);
}

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

.page-home .fact-list li {
  display: grid;
  gap: 2px;
  padding-bottom: 10px;
  border-bottom: 1px dashed rgba(30, 51, 80, .9);
}

.page-home .fact-list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-home .fact-k {
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--text-3);
}

.page-home .fact-v {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text);
  word-break: break-word;
}

.page-home .fact-note {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--edge);
  font-size: 12px;
  line-height: 1.7;
  color: var(--text-3);
}

.page-home .faq-fold {
  margin-top: 12px;
  border: 1px solid var(--edge);
  background: rgba(18, 35, 61, .6);
}

.page-home .faq-fold summary {
  cursor: pointer;
  padding: 14px 16px;
  font-size: 15px;
  color: var(--text);
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.page-home .faq-fold summary::-webkit-details-marker {
  display: none;
}

.page-home .faq-fold summary::after {
  content: "＋";
  font-family: var(--font-mono);
  color: var(--c-yellow);
}

.page-home .faq-fold[open] summary::after {
  content: "－";
}

.page-home .faq-fold summary:focus-visible {
  outline: 2px solid var(--c-yellow);
  outline-offset: -2px;
}

.page-home .faq-fold p {
  margin: 0;
  padding: 0 16px 16px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-2);
}

/* ---------- 收尾 ---------- */
.page-home .closing {
  border-top: 1px solid var(--edge);
  background:
    linear-gradient(90deg, rgba(226, 58, 46, .16) 0 6px, rgba(245, 197, 24, .16) 6px 12px, transparent 12px),
    linear-gradient(180deg, rgba(11, 61, 46, .5), rgba(10, 26, 47, 0));
  padding: 40px 0 48px;
}

.page-home .closing-inner {
  display: grid;
  gap: 20px;
}

.page-home .closing-title {
  margin: 0 0 10px;
  font-size: clamp(22px, 5vw, 30px);
  line-height: 1.3;
  letter-spacing: -.01em;
  color: var(--text);
}

.page-home .closing-lead {
  margin: 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-2);
}

.page-home .closing-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 0;
}

/* ---------- 平板及桌面 ---------- */
@media (min-width: 760px) {
  .page-home .hero {
    padding: 48px 0 60px;
  }

  .page-home .board {
    grid-template-columns: var(--home-rail-w) minmax(0, 1fr);
    align-items: start;
  }

  .page-home .flow-head {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 110px 90px 90px;
    gap: 14px;
    padding: 0 12px 8px;
    font-size: 11px;
    letter-spacing: .08em;
    color: var(--text-3);
    border-bottom: 1px solid var(--edge);
    margin-bottom: 10px;
  }

  .page-home .flow-row {
    grid-template-columns: minmax(0, 1fr) 110px 90px 90px;
    padding: 12px;
  }

  .page-home .flow-league em {
    display: inline;
    margin: 0 0 0 6px;
  }

  .page-home .flow-goals,
  .page-home .flow-state {
    justify-self: start;
  }

  .page-home .flow-state {
    justify-self: end;
  }

  .page-home .meter-row {
    grid-template-columns: 170px minmax(0, 1fr) 96px;
  }

  .page-home .meter-track {
    grid-column: auto;
  }

  .page-home .support-grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: start;
    gap: 26px;
  }

  .page-home .closing-inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 32px;
  }
}

@media (min-width: 1000px) {
  .page-home .hero-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 44px;
    align-items: end;
  }

  .page-home .hero-bg img {
    right: -6%;
    bottom: -20%;
    width: 88%;
  }

  .page-home .feature-row {
    grid-template-columns: 46px minmax(0, 1fr) 150px;
    gap: 20px;
    align-items: start;
    padding: 22px 24px;
  }

  .page-home .feature-link {
    justify-self: end;
    text-align: right;
  }

  .page-home .board-rail {
    padding: 18px;
  }

  .page-home .board-flow {
    padding: 18px 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .rail-item,
  .page-home .feature-row,
  .page-home .jump-link,
  .page-home .feature-link {
    transition: none;
  }

  .page-home .rail-item:hover,
  .page-home .feature-row:hover {
    transform: none;
  }
}