.page-home {
  --home-hairline: rgba(34, 227, 211, .26);
  --home-warmline: rgba(255, 122, 47, .32);
  --home-on-light: #3F4A70;
  --home-on-light-strong: #16204C;

  background: var(--ink);
  color: var(--white);
  overflow-x: clip;
}

/* ---------- 面包屑 ---------- */
.page-home .crumbs {
  padding-top: clamp(14px, 2vw, 22px);
  padding-bottom: clamp(4px, 1vw, 10px);
}

/* ---------- 首屏 ---------- */
.page-home .home-hero {
  position: relative;
  isolation: isolate;
  padding: clamp(20px, 3vw, 34px) 0 clamp(48px, 7vw, 92px);
}

.page-home .home-hero::before {
  content: "";
  position: absolute;
  z-index: -2;
  top: -12%;
  right: -14%;
  left: -14%;
  height: 122%;
  background:
    radial-gradient(58% 68% at 84% 16%, rgba(34, 227, 211, .24), transparent 70%),
    linear-gradient(118deg, rgba(23, 32, 92, .98), rgba(14, 20, 64, .12) 74%);
  clip-path: polygon(0 15%, 100% 0, 100% 83%, 0 100%);
}

.page-home .home-hero__trace {
  position: absolute;
  z-index: -1;
  left: 0;
  right: 0;
  bottom: -8%;
  width: 100%;
  height: clamp(120px, 20vw, 250px);
  opacity: .6;
  pointer-events: none;
}

.page-home .home-hero__grid {
  display: grid;
  gap: clamp(28px, 4.5vw, 52px);
  align-items: center;
}

.page-home .home-hero__title {
  margin: 0 0 .38em;
  font-size: clamp(2.55rem, 8.8vw, 5.6rem);
  line-height: 1.03;
  letter-spacing: -.018em;
}

.page-home .home-hero__hl {
  color: var(--cyan);
}

.page-home .home-hero__lede {
  max-width: 42ch;
  margin: 0 0 clamp(22px, 3vw, 34px);
  font-size: clamp(1.0625rem, 1.6vw, 1.1875rem);
  color: var(--mist);
}

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

.page-home .home-hero__media {
  position: relative;
  margin: 0;
  clip-path: polygon(5% 0, 100% 4%, 95% 100%, 0 96%);
}

.page-home .home-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.page-home .home-hero__stamp {
  position: absolute;
  right: clamp(14px, 3vw, 30px);
  top: clamp(14px, 3vw, 30px);
  font-size: clamp(1.1rem, 2.4vw, 1.6rem);
  font-weight: 500;
  letter-spacing: .06em;
  color: var(--orange);
  text-shadow: 0 0 22px rgba(255, 122, 47, .45);
}

/* ---------- 章节跳转条 ---------- */
.page-home .home-jump {
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  background: rgba(5, 10, 36, .62);
}

.page-home .home-jump__list {
  display: flex;
  flex-wrap: wrap;
  gap: 4px clamp(14px, 2.5vw, 28px);
  max-width: var(--shell);
  margin: 0 auto;
  padding: 12px clamp(18px, 4vw, 32px);
  list-style: none;
}

.page-home .home-jump__link {
  display: inline-block;
  padding: 4px 0;
  font-size: var(--fs-14);
  color: var(--mist);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color .16s ease, border-color .16s ease;
}

.page-home .home-jump__link:hover,
.page-home .home-jump__link:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 频道带 ---------- */
.page-home .home-channels {
  padding: clamp(48px, 7vw, 96px) 0 clamp(44px, 6vw, 84px);
  background: linear-gradient(180deg, rgba(23, 32, 92, .78), rgba(14, 20, 64, .06));
}

.page-home .home-channels__head {
  display: grid;
  gap: clamp(14px, 2vw, 24px);
  margin-bottom: clamp(26px, 3.6vw, 44px);
}

.page-home .home-channels__lede {
  margin: 0;
  max-width: 62ch;
  font-size: var(--fs-17);
  line-height: 1.85;
  color: var(--mist);
}

.page-home .home-channels .filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 clamp(20px, 3vw, 32px);
  padding-bottom: 18px;
  border-bottom: 1px solid var(--home-hairline);
}

.page-home .filter-count {
  margin-left: auto;
  font-size: var(--fs-12);
  letter-spacing: .08em;
  color: var(--mist);
}

.page-home .channel-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 232px), 1fr));
  gap: clamp(12px, 1.6vw, 20px);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .channel-card {
  position: relative;
  padding: 22px 20px 20px 24px;
  border: 1px solid var(--home-hairline);
  border-radius: var(--radius-sm);
  background: rgba(23, 32, 92, .5);
  transition: transform .18s ease, border-color .18s ease, background .18s ease;
}

.page-home .channel-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  bottom: 14px;
  width: 3px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--cyan), rgba(34, 227, 211, 0));
}

.page-home .channel-card:hover,
.page-home .channel-card:focus-within {
  border-color: var(--cyan);
  background: rgba(23, 32, 92, .92);
  transform: translateY(-3px);
}

.page-home .channel-card__num {
  display: block;
  margin-bottom: 12px;
  font-size: var(--fs-12);
  letter-spacing: .16em;
  color: var(--orange);
}

.page-home .channel-card__title {
  margin: 0 0 8px;
  font-size: var(--fs-22);
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--white);
}

.page-home .channel-card__text {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--mist);
}

.page-home .home-channels__map {
  margin: clamp(30px, 4.4vw, 54px) 0 0;
  clip-path: polygon(0 4%, 97% 0, 100% 96%, 3% 100%);
}

.page-home .home-channels__map img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-home .home-factrail {
  display: flex;
  flex-wrap: wrap;
  gap: 8px clamp(16px, 2.6vw, 30px);
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line-soft);
  font-family: var(--mono);
  font-size: var(--fs-12);
  letter-spacing: .05em;
  color: var(--mist);
}

/* ---------- 编号章节通用 ---------- */
.page-home .home-chapter {
  position: relative;
  padding: clamp(56px, 8vw, 112px) 0;
}

.page-home .home-chapter__head {
  display: grid;
  gap: clamp(10px, 1.6vw, 20px);
  align-items: start;
  margin-bottom: clamp(28px, 4vw, 52px);
}

.page-home .home-chapter__lede {
  margin: 14px 0 0;
  max-width: 60ch;
  font-size: var(--fs-17);
  line-height: 1.85;
  color: var(--mist);
}

.page-home .chapter-mark {
  font-family: var(--mono);
  font-size: clamp(56px, 10vw, 118px);
  font-weight: 700;
  line-height: .78;
  letter-spacing: -.05em;
  color: transparent;
  -webkit-text-stroke: 2px rgba(34, 227, 211, .5);
}

/* ---------- 01 复盘跑道 ---------- */
.page-home .review-layout {
  display: grid;
  gap: clamp(24px, 3.4vw, 44px);
  align-items: start;
}

.page-home .track {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--home-hairline);
}

.page-home .track__item {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-home .track__idx {
  flex: none;
  font-size: var(--fs-12);
  letter-spacing: .14em;
  color: var(--orange);
}

.page-home .track__body {
  flex: 1 1 240px;
  min-width: 0;
}

.page-home .track__name {
  margin: 0 0 4px;
  font-size: var(--fs-17);
  font-weight: 700;
  color: var(--white);
}

.page-home .track__meta {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--mist);
}

.page-home .review-layout__media {
  margin: 0;
  clip-path: polygon(0 3%, 100% 0, 97% 100%, 2% 97%);
}

.page-home .review-layout__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 25 / 18;
  object-fit: cover;
}

/* ---------- 02 版本状态 ---------- */
.page-home .home-chapter--version {
  background:
    radial-gradient(70% 90% at 88% 12%, rgba(255, 122, 47, .12), transparent 70%),
    linear-gradient(180deg, rgba(14, 20, 64, 0), rgba(23, 32, 92, .5) 55%, rgba(14, 20, 64, 0));
}

.page-home .version-panel {
  position: relative;
  display: grid;
  gap: clamp(20px, 3vw, 36px);
  padding: clamp(24px, 3.6vw, 46px);
  border: 1px solid var(--home-hairline);
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(23, 32, 92, .96), rgba(14, 20, 64, .58));
  overflow: hidden;
}

.page-home .version-panel::after {
  content: "";
  position: absolute;
  right: -70px;
  top: -70px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 122, 47, .24), transparent 68%);
  pointer-events: none;
}

.page-home .version-panel__badge {
  position: relative;
  z-index: 1;
  padding-right: 12px;
}

.page-home .version-panel__label {
  display: block;
  margin-bottom: 10px;
  font-size: var(--fs-12);
  letter-spacing: .18em;
  color: var(--mist);
}

.page-home .version-panel__value {
  display: block;
  font-family: var(--mono);
  font-size: clamp(2.3rem, 6.4vw, 3.6rem);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -.01em;
  color: var(--orange);
}

.page-home .version-panel__list {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .version-panel__list li {
  position: relative;
  padding-left: 22px;
  font-size: var(--fs-17);
  line-height: 1.8;
  color: var(--white);
}

.page-home .version-panel__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 11px;
  height: 2px;
  background: var(--cyan);
}

.page-home .version-panel__foot {
  position: relative;
  z-index: 1;
}

/* ---------- 03 阅读字号（浅色分区） ---------- */
.page-home .home-chapter--light {
  background: var(--white);
  color: var(--ink);
  clip-path: polygon(0 3.4%, 100% 0, 100% 100%, 0 96.6%);
  padding-top: clamp(72px, 10vw, 148px);
  padding-bottom: clamp(72px, 10vw, 148px);
}

.page-home .home-chapter--light .eyebrow {
  color: var(--teal);
}

.page-home .home-chapter--light .section-title {
  color: var(--home-on-light-strong);
}

.page-home .home-chapter--light .chapter-mark {
  -webkit-text-stroke-color: rgba(11, 127, 122, .55);
}

.page-home .home-chapter--light .home-chapter__lede {
  color: var(--home-on-light);
}

.page-home .reading-layout {
  display: grid;
  gap: clamp(24px, 3.4vw, 46px);
  align-items: start;
}

.page-home .type-scale {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid rgba(14, 20, 64, .16);
}

.page-home .type-scale__item {
  padding: 16px 0;
  border-bottom: 1px solid rgba(14, 20, 64, .16);
}

.page-home .type-scale__tag {
  display: block;
  margin-bottom: 8px;
  font-size: var(--fs-12);
  letter-spacing: .16em;
  color: var(--teal);
}

.page-home .type-scale__text {
  margin: 0;
  line-height: 1.85;
  color: var(--home-on-light);
}

.page-home .type-scale__item[data-size="sm"] .type-scale__text { font-size: 12px; }
.page-home .type-scale__item[data-size="md"] .type-scale__text { font-size: 16px; }
.page-home .type-scale__item[data-size="lg"] .type-scale__text { font-size: 20px; }
.page-home .type-scale__item[data-size="xl"] .type-scale__text { font-size: 24px; }

.page-home .reading-layout__media {
  margin: 0;
  clip-path: polygon(3% 0, 100% 4%, 97% 100%, 0 96%);
}

.page-home .reading-layout__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-home .reading-note {
  margin: clamp(26px, 3.6vw, 44px) 0 0;
  padding: clamp(18px, 2.4vw, 26px) clamp(18px, 2.6vw, 30px);
  border-left: 4px solid var(--teal);
  background: var(--mint);
  color: var(--home-on-light-strong);
  font-size: var(--fs-17);
  line-height: 1.85;
}

/* ---------- 04 新手导览 ---------- */
.page-home .steps {
  display: grid;
  gap: clamp(16px, 2.2vw, 26px);
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: none;
}

.page-home .steps__item {
  position: relative;
  padding: clamp(22px, 2.8vw, 32px) clamp(20px, 2.6vw, 30px);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(23, 32, 92, .7), rgba(14, 20, 64, .3));
}

.page-home .steps__num {
  display: block;
  margin-bottom: 14px;
  font-size: clamp(2rem, 5vw, 2.75rem);
  line-height: 1;
  color: var(--cyan);
  opacity: .85;
}

.page-home .steps__title {
  margin: 0 0 10px;
  font-size: var(--fs-22);
  font-weight: 800;
  color: var(--white);
}

.page-home .steps__text {
  margin: 0;
  font-size: var(--fs-17);
  line-height: 1.85;
  color: var(--mist);
}

.page-home .start-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: clamp(16px, 2.4vw, 32px);
  margin-top: clamp(28px, 4vw, 46px);
  padding-top: clamp(20px, 2.8vw, 30px);
  border-top: 1px solid var(--home-hairline);
}

.page-home .start-foot__text {
  flex: 1 1 320px;
  margin: 0;
  font-size: var(--fs-17);
  line-height: 1.85;
  color: var(--mist);
}

/* ---------- 05 专栏与反馈 ---------- */
.page-home .home-chapter--notes {
  background: linear-gradient(180deg, rgba(23, 32, 92, .55), rgba(5, 10, 36, .6));
}

.page-home .notes-layout {
  display: grid;
  gap: clamp(24px, 3.4vw, 44px);
  align-items: start;
}

.page-home .notes-layout .chip-row {
  margin-bottom: clamp(18px, 2.4vw, 26px);
}

.page-home .note-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--home-hairline);
}

.page-home .note-list__item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-home .note-list__tag {
  flex: none;
  min-width: 76px;
  font-size: var(--fs-12);
  letter-spacing: .1em;
  color: var(--cyan);
}

.page-home .note-list__title {
  flex: 1 1 260px;
  margin: 0;
  font-size: var(--fs-17);
  font-weight: 600;
  line-height: 1.7;
  color: var(--white);
}

.page-home .notes-layout__more {
  margin: clamp(20px, 2.6vw, 30px) 0 0;
}

.page-home .feedback-card {
  padding: clamp(24px, 3vw, 36px);
  border: 1px solid var(--home-warmline);
  border-radius: var(--radius);
  background: linear-gradient(150deg, rgba(255, 122, 47, .14), rgba(23, 32, 92, .85));
}

.page-home .feedback-card__title {
  margin: 0 0 12px;
  font-size: var(--fs-22);
  font-weight: 800;
  color: var(--white);
}

.page-home .feedback-card__text {
  margin: 0 0 clamp(18px, 2.4vw, 26px);
  font-size: var(--fs-17);
  line-height: 1.85;
  color: var(--white);
}

.page-home .feedback-card__mail {
  margin: clamp(16px, 2.2vw, 22px) 0 0;
  font-size: var(--fs-14);
  letter-spacing: .04em;
  color: var(--mist);
  word-break: break-all;
}

/* ---------- 图片通用约束 ---------- */
.page-home .media img {
  display: block;
  max-width: 100%;
  height: auto;
}

/* ---------- 窄屏 ---------- */
@media (max-width: 640px) {
  .page-home .home-hero::before {
    clip-path: polygon(0 8%, 100% 0, 100% 92%, 0 100%);
  }

  .page-home .home-hero__media,
  .page-home .home-channels__map,
  .page-home .review-layout__media,
  .page-home .reading-layout__media {
    clip-path: none;
  }

  .page-home .home-hero__stamp {
    position: static;
    display: block;
    margin-top: 10px;
    text-shadow: none;
  }

  .page-home .filter-count {
    margin-left: 0;
  }

  .page-home .track__idx {
    display: none;
  }

  .page-home .home-chapter--light {
    clip-path: polygon(0 1.6%, 100% 0, 100% 100%, 0 98.4%);
  }
}

/* ---------- 中屏与桌面 ---------- */
@media (min-width: 720px) {
  .page-home .home-channels__head {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: end;
    gap: clamp(20px, 4vw, 56px);
  }

  .page-home .home-chapter__head {
    grid-template-columns: minmax(96px, 168px) minmax(0, 1fr);
    gap: clamp(20px, 3.6vw, 52px);
  }

  .page-home .steps {
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  }
}

@media (min-width: 960px) {
  .page-home .home-hero__grid {
    grid-template-columns: 1.08fr .92fr;
    gap: clamp(32px, 5vw, 76px);
  }

  .page-home .review-layout {
    grid-template-columns: 1.12fr .88fr;
  }

  .page-home .version-panel {
    grid-template-columns: minmax(200px, 250px) minmax(0, 1fr);
    align-items: center;
    gap: clamp(28px, 4vw, 56px);
  }

  .page-home .version-panel__foot {
    grid-column: 2;
  }

  .page-home .reading-layout {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: clamp(32px, 4.4vw, 64px);
  }

  .page-home .notes-layout {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr);
    gap: clamp(32px, 4.4vw, 60px);
  }
}