.page-home {
  --home-rail: 280px;
  --home-cut: 18px;
  display: block;
  background: var(--ink-950);
  color: var(--text);
}

/* ============ 首屏封面 ============ */

.page-home .home-cover {
  position: relative;
  overflow: hidden;
  padding: clamp(36px, 6vw, 78px) 0 clamp(44px, 7vw, 96px);
  background:
    radial-gradient(90% 72% at 88% 2%, rgba(56, 232, 212, 0.13), transparent 62%),
    radial-gradient(70% 60% at 4% 96%, rgba(255, 90, 43, 0.10), transparent 68%),
    linear-gradient(180deg, var(--ink-900) 0%, var(--ink-950) 82%);
  border-bottom: 1px solid var(--line);
}

.page-home .home-cover::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(43, 58, 85, 0.30) 1px, transparent 1px),
    linear-gradient(90deg, rgba(43, 58, 85, 0.30) 1px, transparent 1px);
  background-size: 96px 96px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent 94%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent 94%);
  pointer-events: none;
}

.page-home .home-cover__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 5vw, 52px);
  align-items: center;
}

.page-home .home-cover__copy {
  min-width: 0;
}

.page-home .home-cover__title {
  margin: 14px 0 18px;
  font-size: clamp(30px, 5.4vw, 54px);
  line-height: 1.14;
  font-weight: 900;
  letter-spacing: 0.03em;
  color: var(--text);
}

.page-home .home-cover__title em {
  font-style: normal;
  color: var(--cyan);
  background-image: linear-gradient(180deg, transparent 76%, rgba(56, 232, 212, 0.28) 76%);
  background-repeat: no-repeat;
}

.page-home .home-cover__lede {
  margin: 0;
  max-width: 40em;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: var(--muted);
}

.page-home .home-cover__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-home .home-cover__visual {
  position: relative;
  padding: 8px;
  background: linear-gradient(140deg, rgba(56, 232, 212, 0.42), rgba(255, 90, 43, 0.24) 52%, rgba(43, 58, 85, 0.5));
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

.page-home .home-cover__visual img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  background: var(--ink-800);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%);
}

@media (min-width: 960px) {
  .page-home .home-cover__inner {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
    gap: clamp(36px, 4.5vw, 64px);
  }
}

/* ============ 主体：常驻索引 + 内容流 ============ */

.page-home .home-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 44px);
  max-width: var(--shell);
  margin: 0 auto;
  padding: clamp(40px, 6vw, 88px) var(--gutter) clamp(56px, 8vw, 120px);
}

.page-home .home-flow {
  min-width: 0;
}

@media (min-width: 1040px) {
  .page-home .home-body {
    grid-template-columns: var(--home-rail) minmax(0, 1fr);
    gap: clamp(48px, 5.5vw, 84px);
  }
}

/* ---- 左侧章节索引 ---- */

.page-home .home-rail {
  min-width: 0;
}

.page-home .home-rail__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--muted);
}

.page-home .home-rail__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-home .home-rail__list::-webkit-scrollbar {
  display: none;
}

.page-home .home-rail__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  white-space: nowrap;
  font-size: 13px;
  line-height: 1.2;
  color: var(--muted);
  text-decoration: none;
  background: var(--ink-900);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-home .home-rail__no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-home .home-rail__link:hover {
  color: var(--text);
  border-color: var(--cyan-deep);
}

.page-home .home-rail__link.is-active {
  color: var(--ink-950);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-home .home-rail__link.is-active .home-rail__no {
  color: var(--ink-950);
}

@media (min-width: 1040px) {
  .page-home .home-rail {
    position: sticky;
    top: calc(var(--head-h) + 28px);
    align-self: start;
  }

  .page-home .home-rail__list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding: 0;
    border-left: 1px solid var(--line);
  }

  .page-home .home-rail__link {
    width: 100%;
    margin-left: -1px;
    padding: 10px 12px;
    border: 0;
    border-left: 2px solid transparent;
    background: transparent;
    clip-path: none;
    font-size: 13.5px;
  }

  .page-home .home-rail__link:hover {
    border-left-color: var(--cyan-deep);
    background: rgba(17, 31, 58, 0.6);
  }

  .page-home .home-rail__link.is-active {
    color: var(--text);
    background: linear-gradient(90deg, rgba(56, 232, 212, 0.14), transparent 82%);
    border-left-color: var(--cyan);
  }

  .page-home .home-rail__link.is-active .home-rail__no {
    color: var(--cyan);
  }
}

/* ============ 章节骨架 ============ */

.page-home [data-section] {
  scroll-margin-top: calc(var(--head-h) + 24px);
}

.page-home .home-chapter {
  padding-top: clamp(52px, 7vw, 96px);
  border-top: 1px solid rgba(43, 58, 85, 0.6);
}

.page-home .home-chapter:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-home .home-chapter__head {
  position: relative;
  padding-left: 16px;
  margin-bottom: clamp(22px, 3.2vw, 36px);
}

.page-home .home-chapter__head::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: linear-gradient(180deg, var(--cyan), var(--orange) 72%, transparent);
}

.page-home .home-chapter__title {
  margin: 6px 0 10px;
  font-size: clamp(22px, 3vw, 32px);
  line-height: 1.28;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--text);
}

.page-home .home-chapter__lede {
  margin: 0;
  max-width: 52em;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--muted);
}

.page-home .home-chapter__foot {
  margin: clamp(18px, 2.6vw, 28px) 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-home .home-chapter__foot .link-accent {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(56, 232, 212, 0.4);
}

.page-home .home-chapter__foot .link-accent:hover {
  border-bottom-color: var(--cyan);
}

/* ============ 01 战队卡片带 ============ */

.page-home .team-scroller {
  margin: 0 calc(-1 * var(--gutter));
  padding: 6px var(--gutter) 16px;
  overflow-x: auto;
  overflow-y: hidden;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--line) transparent;
}

.page-home .team-scroller:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-home .team-track {
  display: flex;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
  min-width: max-content;
}

.page-home .team-card {
  flex: 0 0 auto;
  scroll-snap-align: start;
  width: min(74vw, 252px);
  display: flex;
  flex-direction: column;
  background: var(--ink-900);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-home .team-card:hover {
  border-color: var(--cyan-deep);
  transform: translateY(-3px);
}

.page-home .team-card__crest {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  height: 84px;
  padding: 0 14px;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(62% 96% at 26% 16%, rgba(56, 232, 212, 0.30), transparent 72%),
    linear-gradient(135deg, var(--ink-800), var(--ink-900));
}

.page-home .team-card__region {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-home .team-card__body {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 14px;
}

.page-home .team-card__name {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--text);
}

.page-home .team-card__kills {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  margin: 0;
}

.page-home .team-card__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
}

.page-home .team-card__unit {
  font-size: 12px;
  color: var(--muted);
}

.page-home .team-card__note {
  margin: 0;
  padding-top: 8px;
  border-top: 1px dashed rgba(43, 58, 85, 0.9);
  font-size: 12.5px;
  color: var(--muted);
}

/* ============ 02 更新节奏 ============ */

.page-home .cadence-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3.4vw, 40px);
  align-items: start;
}

.page-home .cadence-figures {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 14px;
}

.page-home .cadence-figures .stat {
  padding: 16px 16px 14px;
  background: var(--ink-900);
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan-deep);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%);
}

.page-home .cadence-figures .stat:nth-child(even) {
  border-left-color: var(--orange);
}

.page-home .cadence-figure {
  margin: 0;
}

.page-home .cadence-figure img,
.page-home .route-figure img,
.page-home .topic-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line);
  background: var(--ink-800);
}

.page-home .cadence-figure .media__caption,
.page-home .route-figure .media__caption,
.page-home .topic-figure .media__caption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

@media (min-width: 900px) {
  .page-home .cadence-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  }
}

.page-home .fold-group {
  display: grid;
  gap: 10px;
  margin-top: clamp(22px, 3.2vw, 36px);
}

.page-home .fold {
  border: 1px solid var(--line);
  background: var(--ink-900);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%);
}

.page-home .fold[open] {
  background: var(--ink-800);
}

.page-home .fold .fold__head {
  padding: 14px 16px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  list-style: none;
}

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

.page-home .fold .fold__head::marker {
  content: "";
}

.page-home .fold .fold__head::after {
  content: "+";
  float: right;
  font-family: var(--font-mono);
  color: var(--cyan);
}

.page-home .fold[open] .fold__head::after {
  content: "−";
  color: var(--orange);
}

.page-home .fold .fold__body {
  padding: 0 16px 16px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--muted);
  border-top: 1px solid rgba(43, 58, 85, 0.7);
  padding-top: 14px;
}

/* ============ 03 战队库检索 ============ */

.page-home .library-dims {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin: 0 0 clamp(24px, 3.4vw, 40px);
  padding: 0;
  list-style: none;
}

.page-home .library-dim {
  padding: 18px 18px 20px;
  background: linear-gradient(180deg, rgba(17, 31, 58, 0.9), rgba(11, 20, 40, 0.9));
  border-top: 2px solid var(--cyan-deep);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
}

.page-home .library-dim__no {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-home .library-dim__title {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--text);
}

.page-home .library-dim__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

@media (min-width: 760px) {
  .page-home .library-dims {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-home .home-fields__caption {
  padding: 0 0 12px;
  text-align: left;
  font-size: 13.5px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-home .home-fields th[scope="row"] {
  color: var(--text);
  font-weight: 600;
}

.page-home .home-fields td {
  color: var(--muted);
}

.page-home .home-fields tbody tr:hover th[scope="row"] {
  color: var(--cyan);
}

/* ============ 04 客户端与订阅 ============ */

.page-home .route-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3.4vw, 40px);
  align-items: start;
}

.page-home .route-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0;
}

.page-home .route-step {
  position: relative;
  padding: 0 0 22px 22px;
  border-left: 1px solid var(--line);
}

.page-home .route-step:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-home .route-step::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 6px;
  width: 9px;
  height: 9px;
  background: var(--cyan);
  transform: rotate(45deg);
}

.page-home .route-step:last-child::before {
  background: var(--orange);
}

.page-home .route-step__no {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-home .route-step__title {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--text);
}

.page-home .route-step__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--muted);
}

.page-home .route-figure {
  margin: 0;
}

.page-home .route-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(20px, 3vw, 32px);
}

@media (min-width: 940px) {
  .page-home .route-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  }
}

/* ============ 05 专题中心 ============ */

.page-home .topic-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  margin: 0 0 clamp(22px, 3.2vw, 36px);
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-home .topic-item {
  padding: 16px 0 16px 0;
  border-bottom: 1px solid var(--line);
  transition: background var(--dur) var(--ease);
}

.page-home .topic-item:hover {
  background: linear-gradient(90deg, rgba(56, 232, 212, 0.08), transparent 70%);
}

.page-home .topic-item__title {
  margin: 0 0 6px;
  font-size: 16.5px;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--text);
}

.page-home .topic-item:hover .topic-item__title {
  color: var(--cyan);
}

.page-home .topic-item__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-home .topic-figure {
  margin: 0;
}

@media (min-width: 720px) {
  .page-home .topic-item {
    display: grid;
    grid-template-columns: minmax(0, 200px) minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
  }
}

/* ============ 06 咨询通道 ============ */

.page-home .support-channels {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .support-channel {
  padding: 18px;
  background: var(--ink-900);
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan-deep);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
}

.page-home .support-channel:nth-child(2) {
  border-left-color: var(--orange);
}

.page-home .support-channel:nth-child(3) {
  border-left-color: var(--amber);
}

.page-home .support-channel:nth-child(4) {
  border-left-color: var(--muted);
}

.page-home .support-channel__title {
  margin: 0 0 8px;
  font-size: 16.5px;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--text);
}

.page-home .support-channel__text {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.page-home .support-channel__meta {
  margin: 0;
  padding-top: 10px;
  border-top: 1px dashed rgba(43, 58, 85, 0.9);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.03em;
  color: var(--muted);
  overflow-wrap: anywhere;
}

@media (min-width: 760px) {
  .page-home .support-channels {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1200px) {
  .page-home .support-channels {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ============ 动效退化 ============ */

@media (prefers-reduced-motion: reduce) {
  .page-home .team-card,
  .page-home .home-rail__link,
  .page-home .topic-item {
    transition: none;
  }

  .page-home .team-card:hover {
    transform: none;
  }
}