.page-home {
  --home-rail-w: 360px;
  --home-block-pad: clamp(52px, 8vw, 104px);
  background: var(--c-deep);
}

/* ---------- 面包屑 ---------- */
.page-home .breadcrumb {
  padding: clamp(14px, 2vw, 22px) var(--gutter) 0;
  max-width: var(--shell);
  margin: 0 auto;
}

.page-home .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: var(--step-mono);
  letter-spacing: .1em;
  color: var(--c-mist);
}

.page-home .breadcrumb li + li::before {
  content: "/";
  margin: 0 8px;
  color: var(--line-soft);
}

.page-home .breadcrumb a {
  color: var(--c-cyan-soft);
  text-decoration: none;
}

.page-home .breadcrumb a:hover {
  color: var(--c-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 通用文字层 ---------- */
.page-home .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--step-mono);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--c-cyan);
}

.page-home .section-title {
  margin: 0;
  font-size: var(--step-h2);
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: -.01em;
  color: var(--c-ice);
}

.page-home .lede {
  margin: 0;
  font-size: var(--step-body);
  line-height: 1.8;
  color: var(--c-ice);
}

.page-home .measure {
  max-width: 34em;
}

.page-home .num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: .08em;
}

/* ---------- 首屏 ---------- */
.home-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(28px, 5vw, 60px) 0 clamp(46px, 7vw, 92px);
}

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

.home-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .3;
  filter: saturate(1.1);
}

.home-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(10, 31, 68, .55) 0%, rgba(7, 23, 51, .88) 58%, var(--c-deep) 100%);
}

.home-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(34px, 5vw, 58px);
}

@media (min-width: 900px) {
  .home-hero__grid {
    grid-template-columns: minmax(272px, var(--home-rail-w)) minmax(0, 1fr);
    align-items: start;
  }
}

/* 左侧检索轨道 */
.home-rail {
  position: relative;
  padding-left: 24px;
}

.home-rail::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: -18px;
  width: 2px;
  background: linear-gradient(180deg, var(--c-cyan) 0%, rgba(0, 229, 255, .22) 62%, rgba(0, 229, 255, 0) 100%);
}

.home-rail h1 {
  margin: 14px 0 18px;
  font-size: var(--step-display);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -.015em;
  color: var(--c-ice);
  transform: rotate(-1.5deg);
  transform-origin: left center;
}

.home-rail__steps {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.home-rail__steps li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  font-size: var(--step-sm);
  line-height: 1.7;
  color: var(--c-mist);
}

.home-rail__idx {
  color: var(--c-orange);
  font-size: var(--step-mono);
}

.home-rail__nav {
  display: grid;
  gap: 0;
  margin-top: 30px;
  border-left: 2px solid var(--line-cyan);
}

.home-rail__node {
  position: relative;
  display: block;
  padding: 9px 0 9px 20px;
  font-size: var(--step-sm);
  color: var(--c-mist);
  text-decoration: none;
  transition: color .16s var(--ease);
}

.home-rail__node::before {
  content: "";
  position: absolute;
  left: -7px;
  top: 50%;
  width: 10px;
  height: 10px;
  margin-top: -5px;
  border: 2px solid var(--c-cyan);
  border-radius: 50%;
  background: var(--c-deep);
  transition: background .16s var(--ease), box-shadow .16s var(--ease);
}

.home-rail__node:hover,
.home-rail__node:focus-visible {
  color: var(--c-cyan);
}

.home-rail__node:hover::before,
.home-rail__node:focus-visible::before {
  background: var(--c-cyan);
  box-shadow: 0 0 12px rgba(0, 229, 255, .7);
}

/* 右侧专题瀑布流 */
.home-hero__right {
  min-width: 0;
}

.home-flow__head {
  display: grid;
  gap: 10px;
  margin-bottom: 22px;
}

.home-flow__heading {
  margin: 0;
  font-size: var(--step-h2);
  font-weight: 900;
  line-height: 1.16;
  color: var(--c-ice);
  transform: rotate(-1deg);
  transform-origin: left center;
}

.home-flow {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  align-items: start;
}

@media (min-width: 640px) {
  .home-flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px 20px;
  }
}

@media (min-width: 900px) {
  .home-flow {
    margin-top: -10px;
  }
}

.home-flow__card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 18px;
  background: var(--glass);
  border: 2px solid var(--line-cyan);
  box-shadow: var(--shadow-hard);
  transition: transform .16s var(--ease), border-color .16s var(--ease);
}

.home-flow__card:hover {
  transform: translate(-2px, -4px);
  border-color: var(--c-cyan);
}

.home-flow__card:nth-child(2) { min-height: 188px; }
.home-flow__card:nth-child(3) { min-height: 226px; }
.home-flow__card:nth-child(4) { min-height: 168px; }
.home-flow__card:nth-child(5) { min-height: 208px; }
.home-flow__card:nth-child(6) { min-height: 182px; }

.home-flow__img {
  display: block;
  width: calc(100% + 36px);
  margin: -18px -18px 16px;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-bottom: 2px solid var(--line-cyan);
}

.home-flow__body {
  display: flex;
  flex-direction: column;
  flex: 1;
}

.home-flow__title {
  margin: 12px 0 8px;
  font-size: var(--step-h3);
  font-weight: 800;
  line-height: 1.28;
  color: var(--c-ice);
}

.home-flow__desc {
  margin: 0 0 16px;
  font-size: var(--step-sm);
  line-height: 1.72;
  color: var(--c-mist);
}

.home-flow__meta {
  list-style: none;
  display: flex;
  gap: 14px;
  margin: auto 0 0;
  padding: 12px 0 0;
  border-top: 2px dotted var(--line-soft);
  font-family: var(--font-mono);
  font-size: var(--step-mono);
  letter-spacing: .08em;
  color: var(--c-mist);
}

.home-flow__meta li:last-child {
  margin-left: auto;
  color: var(--c-orange-soft);
}

.home-flow__card--lead .home-flow__body {
  display: flex;
}

/* ---------- 章节容器 ---------- */
.home-block {
  position: relative;
  padding: var(--home-block-pad) 0;
}

.home-block--steel {
  background: var(--c-steel);
}

.home-block--night {
  background: var(--c-night);
}

.home-block--edge {
  background: linear-gradient(135deg, var(--c-steel) 0%, var(--c-deep) 72%);
  border-top: 2px solid var(--c-cyan);
  border-bottom: 2px solid var(--c-cyan);
}

.home-block__head {
  display: grid;
  gap: 14px;
  max-width: 720px;
  margin-bottom: clamp(28px, 4vw, 50px);
}

/* ---------- 拼音索引 ---------- */
.home-pinyin__grid {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
}

@media (min-width: 880px) {
  .home-pinyin__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: center;
  }
}

.home-pinyin__intro {
  display: grid;
  gap: 16px;
  justify-items: start;
}

.home-pinyin__list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 6px;
  margin: 0;
  padding: 0;
}

@media (min-width: 560px) {
  .home-pinyin__list {
    grid-template-columns: repeat(9, minmax(0, 1fr));
  }
}

@media (min-width: 1040px) {
  .home-pinyin__list {
    grid-template-columns: repeat(7, minmax(0, 1fr));
  }
}

.home-pinyin__list li {
  display: grid;
  place-items: center;
  aspect-ratio: 1 / 1;
  border: 2px solid var(--line-soft);
  background: rgba(10, 31, 68, .5);
  font-family: var(--font-mono);
  font-size: var(--step-sm);
  letter-spacing: .12em;
  color: var(--c-cyan-soft);
  transition: background .16s var(--ease), border-color .16s var(--ease), color .16s var(--ease);
}

.home-pinyin__list li:hover {
  background: rgba(124, 243, 255, .18);
  border-color: var(--c-cyan);
  color: var(--c-ice);
}

/* ---------- 数据面板 ---------- */
.home-panel__band {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 8 / 3;
  object-fit: cover;
  border: 2px solid var(--line-cyan);
  box-shadow: var(--shadow-hard);
  margin-bottom: clamp(26px, 4vw, 46px);
}

.home-panel__stack {
  display: grid;
  gap: 20px;
  align-items: start;
}

@media (min-width: 900px) {
  .home-panel__stack {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
  }

  .home-panel__card--a {
    grid-column: 1 / 2;
    z-index: 3;
  }

  .home-panel__card--b {
    grid-column: 2 / 3;
    margin-top: 54px;
    margin-left: -20px;
    z-index: 2;
  }

  .home-panel__card--c {
    grid-column: 3 / 4;
    margin-top: 108px;
    margin-left: -20px;
    z-index: 1;
  }
}

.home-panel__card {
  padding: 22px 22px 24px;
  border: 2px solid var(--c-cyan);
  box-shadow: var(--shadow-hard);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.home-panel__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: var(--step-mono);
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--c-orange);
}

.home-panel__title {
  margin: 0 0 18px;
  font-size: var(--step-h3);
  font-weight: 800;
  line-height: 1.3;
  color: var(--c-ice);
}

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

.home-panel__rows li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 0;
  border-bottom: 2px dotted var(--line-soft);
  font-size: var(--step-sm);
  color: var(--c-mist);
}

.home-panel__rows li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.home-panel__rows .num {
  color: var(--c-cyan-soft);
  font-size: var(--step-mono);
  white-space: nowrap;
}

/* ---------- 专家专栏 ---------- */
.home-columns__wrap {
  display: grid;
  gap: 0 clamp(28px, 4vw, 56px);
}

@media (min-width: 880px) {
  .home-columns__wrap {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.home-columns__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.home-columns__item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 2px dotted var(--line-soft);
}

.home-columns__tag {
  display: block;
  margin-bottom: 5px;
  font-family: var(--font-mono);
  font-size: var(--step-mono);
  letter-spacing: .12em;
  color: var(--c-cyan);
}

.home-columns__title {
  display: block;
  font-size: var(--step-body);
  line-height: 1.6;
  color: var(--c-ice);
}

.home-columns__date {
  font-size: var(--step-mono);
  color: var(--c-orange-soft);
  white-space: nowrap;
}

.home-columns__action {
  margin-top: clamp(24px, 3.5vw, 40px);
}

/* ---------- 回访体验 ---------- */
.home-speed__grid {
  display: grid;
  gap: clamp(30px, 4.5vw, 58px);
}

@media (min-width: 900px) {
  .home-speed__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    align-items: center;
  }
}

.home-speed__intro {
  display: grid;
  gap: 16px;
}

.home-speed__stats {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 22px;
  margin: 12px 0 0;
  padding: 22px 0 0;
  border-top: 2px solid var(--line-cyan);
}

.home-speed__stats li {
  display: grid;
  gap: 8px;
}

.home-speed__figure {
  font-size: var(--step-h2);
  font-weight: 900;
  line-height: 1;
  color: var(--c-cyan);
}

.home-speed__unit {
  margin-left: 4px;
  font-size: var(--step-sm);
  font-weight: 500;
  color: var(--c-cyan-soft);
}

.home-speed__caption {
  font-size: var(--step-xs);
  line-height: 1.7;
  color: var(--c-mist);
}

.home-speed__media {
  margin: 0;
  border: 2px solid var(--line-cyan);
  box-shadow: var(--shadow-hard);
  background: var(--c-deep);
}

.home-speed__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
}

.home-speed__media figcaption {
  padding: 14px 18px 16px;
  border-top: 2px solid var(--line-cyan);
  font-size: var(--step-xs);
  line-height: 1.7;
  color: var(--c-mist);
}

/* ---------- 结尾行动区 ---------- */
.home-paths__inner {
  display: grid;
  gap: 18px;
  max-width: 880px;
}

.home-paths__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 10px;
}

/* ---------- 滚动显现 ---------- */
.page-home [data-reveal] {
  opacity: 1;
}

.page-home.js-reveal .page-home [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .2s var(--ease), transform .2s var(--ease);
}

.page-home.js-reveal .page-home [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .page-home.js-reveal .page-home [data-reveal],
  .page-home.js-reveal .page-home [data-reveal].is-visible {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .page-home .home-flow__card,
  .page-home .home-rail__node,
  .page-home .home-pinyin__list li {
    transition: none;
  }

  .page-home .home-flow__card:hover {
    transform: none;
  }
}