.page-home {
  --ph-gap: clamp(14px, 2vw, 22px);
  --ph-sec-pad: clamp(58px, 9vw, 128px);
  --ph-radius: var(--r-lg);
  background: var(--ink);
  color: var(--mist);
  font-family: var(--font-body);
  overflow-x: hidden;
}

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

/* ---------- 页面上下文 ---------- */
.page-home .page-home__context {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 22px;
  padding-top: clamp(18px, 4vw, 34px);
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.page-home .page-home__ctx-line,
.page-home .page-home__ctx-note {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--sage);
}

.page-home .page-home__ctx-line .num {
  color: var(--lime);
}

.page-home .page-home__ctx-sep {
  padding: 0 8px;
  color: var(--gold);
}

/* ---------- 首屏 ---------- */
.page-home .hero {
  position: relative;
  isolation: isolate;
  padding: clamp(44px, 8vw, 116px) 0 clamp(40px, 6vw, 88px);
  overflow: hidden;
}

.page-home .hero__bg {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.page-home .hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .26;
  filter: saturate(.45) contrast(1.12) brightness(.85);
}

.page-home .hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    repeating-linear-gradient(90deg, rgba(244, 251, 243, .045) 0 1px, transparent 1px 96px),
    repeating-linear-gradient(0deg, rgba(244, 251, 243, .03) 0 1px, transparent 1px 96px),
    linear-gradient(180deg, rgba(10, 28, 24, .55) 0%, rgba(10, 28, 24, .92) 78%, var(--ink) 100%);
  pointer-events: none;
}

.page-home .hero__inner {
  position: relative;
}

.page-home .hero__eyebrow {
  margin: 0 0 clamp(16px, 3vw, 30px);
  font-family: var(--font-mono);
  font-size: clamp(11px, 1.2vw, 13px);
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-home .hero__title {
  margin: 0 0 clamp(20px, 3vw, 32px);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(44px, 10.5vw, 146px);
  line-height: .96;
  letter-spacing: -.025em;
  color: var(--mist);
  max-width: 16ch;
}

.page-home .hero__title em {
  font-style: normal;
  color: var(--lime);
}

.page-home .hero__lead {
  margin: 0 0 clamp(26px, 4vw, 40px);
  max-width: 64ch;
  font-size: clamp(15.5px, 1.7vw, 18px);
  line-height: 1.8;
  color: rgba(237, 243, 238, .82);
}

.page-home .hero__score {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0 0 clamp(26px, 4vw, 40px);
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
}

.page-home .hero__score-cell {
  background: rgba(17, 20, 19, .92);
  padding: clamp(16px, 2.2vw, 24px);
}

.page-home .hero__score-value {
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: clamp(26px, 4vw, 44px);
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--lime);
}

.page-home .hero__score-unit {
  font-size: clamp(12px, 1.3vw, 14px);
  letter-spacing: .06em;
  color: var(--gold);
}

.page-home .hero__score-label {
  margin: 10px 0 0;
  font-size: clamp(12px, 1.3vw, 13px);
  line-height: 1.6;
  color: var(--sage);
}

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

/* ---------- 章节轨道 ---------- */
.page-home .chapter-rail {
  background: rgba(17, 20, 19, .78);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-home .chapter-rail__inner {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-top: 11px;
  padding-bottom: 13px;
  scrollbar-width: none;
}

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

.page-home .chapter-rail__link {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 15px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .05em;
  color: var(--sage);
  text-decoration: none;
  white-space: nowrap;
  transition: color .25s, background-color .25s, border-color .25s;
}

.page-home .chapter-rail__link .num {
  color: var(--gold);
  font-size: 11.5px;
  transition: color .25s;
}

.page-home .chapter-rail__link:hover,
.page-home .chapter-rail__link:focus-visible,
.page-home .chapter-rail__link.is-active {
  color: var(--ink);
  background: var(--lime);
  border-color: var(--lime);
}

.page-home .chapter-rail__link:hover .num,
.page-home .chapter-rail__link.is-active .num {
  color: rgba(10, 28, 24, .7);
}

/* ---------- 通用章节 ---------- */
.page-home .ph-sec {
  position: relative;
  padding: var(--ph-sec-pad) 0;
}

.page-home .ph-sec--glass {
  background:
    linear-gradient(180deg, rgba(18, 48, 41, .55) 0%, rgba(10, 28, 24, 0) 100%),
    linear-gradient(180deg, var(--ink) 0%, var(--char) 100%);
}

.page-home .ph-sec__head {
  position: relative;
  padding-left: 18px;
  margin-bottom: clamp(30px, 5vw, 60px);
  max-width: 900px;
}

.page-home .ph-sec__head::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--lime) 0%, rgba(198, 242, 78, .05) 100%);
}

.page-home .ph-sec__no {
  display: block;
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--sage);
  transition: color .3s;
}

.page-home .ph-sec.is-active .ph-sec__no,
.page-home .ph-outro:hover .ph-sec__no {
  color: var(--lime);
}

.page-home .ph-sec__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(26px, 4.4vw, 52px);
  line-height: 1.08;
  letter-spacing: -.015em;
  color: var(--mist);
}

.page-home .ph-sec__sub {
  margin: 0;
  max-width: 66ch;
  font-size: clamp(14.5px, 1.6vw, 16.5px);
  line-height: 1.85;
  color: var(--sage);
}

.page-home .ph-sec__foot {
  margin: clamp(28px, 4vw, 44px) 0 0;
}

/* ---------- 01 结构数据 ---------- */
.page-home .entry-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ph-gap);
}

.page-home .entry-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: clamp(20px, 2.6vw, 30px);
  background: var(--char);
  border: 1px solid var(--line);
  border-radius: var(--ph-radius);
  overflow: hidden;
  transition: border-color .3s, background-color .3s, transform .3s;
}

.page-home .entry-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--lime) 0%, rgba(198, 242, 78, 0) 82%);
}

.page-home .entry-card__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .22em;
  color: var(--gold);
}

.page-home .entry-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(19px, 2.3vw, 25px);
  letter-spacing: -.01em;
  color: var(--mist);
}

.page-home .entry-card__value {
  display: flex;
  align-items: baseline;
  gap: 9px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(30px, 3.4vw, 44px);
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--lime);
}

.page-home .entry-card__unit {
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--sage);
}

.page-home .entry-card__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(237, 243, 238, .76);
}

.page-home .field-note {
  margin-top: auto;
  padding-top: 13px;
  border-top: 1px dashed var(--line-strong);
  transition: opacity .3s, max-height .35s, transform .3s;
}

.page-home .field-note__key {
  display: block;
  margin-bottom: 5px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-home .field-note__text {
  display: block;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--sage);
}

.page-home .entry-card:hover,
.page-home .entry-card:focus-visible {
  border-color: rgba(198, 242, 78, .5);
  background: var(--deep);
  transform: translateY(-4px);
  outline: none;
}

/* ---------- 02 点球与定位球 ---------- */
.page-home .spot {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 42px);
  align-items: center;
  padding: clamp(20px, 3vw, 38px);
  border: 1px solid var(--line);
  border-radius: var(--ph-radius);
  background: linear-gradient(135deg, rgba(27, 59, 51, .62) 0%, rgba(17, 20, 19, .9) 68%);
  backdrop-filter: blur(6px);
}

.page-home .spot + .spot {
  margin-top: var(--ph-gap);
}

.page-home .spot__media {
  position: relative;
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--deep);
}

.page-home .spot__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-home .spot__title {
  margin: 10px 0 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(21px, 2.6vw, 31px);
  line-height: 1.2;
  color: var(--mist);
}

.page-home .spot__text {
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(237, 243, 238, .78);
}

.page-home .spot__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0 0 20px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
}

.page-home .spot__stat {
  background: rgba(10, 28, 24, .78);
  padding: 14px 16px;
}

.page-home .spot__stat-num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(22px, 2.6vw, 30px);
  line-height: 1;
  color: var(--lime);
}

.page-home .spot__stat-cap {
  margin: 7px 0 0;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--sage);
}

.page-home .metric-row {
  margin-bottom: 16px;
}

.page-home .spot__note {
  margin: 0;
  padding-left: 14px;
  border-left: 2px solid var(--gold);
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--sage);
}

/* ---------- 03 教练时间线 ---------- */
.page-home .coach-banner {
  position: relative;
  margin: 0 0 clamp(30px, 4.5vw, 56px);
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--deep);
}

.page-home .coach-banner img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-home .coach-banner__cap {
  margin: 0;
  padding: 12px 18px;
  background: rgba(10, 28, 24, .88);
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--sage);
}

.page-home .timeline {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(20px, 3vw, 30px);
}

.page-home .timeline__item {
  position: relative;
  padding-left: 32px;
}

.page-home .timeline__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--lime);
  box-shadow: 0 0 0 4px rgba(198, 242, 78, .08);
}

.page-home .timeline__item:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 24px;
  bottom: calc(-1 * clamp(20px, 3vw, 30px));
  width: 2px;
  background: linear-gradient(180deg, rgba(198, 242, 78, .7) 0%, rgba(227, 176, 75, .18) 70%, rgba(227, 176, 75, 0) 100%);
}

.page-home .timeline__range {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--gold);
}

.page-home .timeline__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(17px, 2vw, 22px);
  line-height: 1.3;
  color: var(--mist);
}

.page-home .timeline__text {
  margin: 0;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--sage);
}

/* ---------- 04 简史与规则 ---------- */
.page-home .library-stack {
  display: grid;
  gap: 12px;
}

.page-home .library-stack .collapse {
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: rgba(27, 59, 51, .42);
  overflow: hidden;
}

.page-home .library-stack .collapse__head {
  width: 100%;
  text-align: left;
  padding: clamp(16px, 2.2vw, 22px) clamp(16px, 2.4vw, 26px);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(15.5px, 1.8vw, 19px);
  letter-spacing: -.005em;
  color: var(--mist);
  background: transparent;
  border: 0;
  cursor: pointer;
  transition: color .25s, background-color .25s;
}

.page-home .library-stack .collapse__head:hover {
  color: var(--lime);
  background: rgba(198, 242, 78, .05);
}

.page-home .library-stack .collapse__body {
  padding: 0 clamp(16px, 2.4vw, 26px) clamp(16px, 2.2vw, 24px);
}

.page-home .library-stack .prose {
  margin: 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line-strong);
}

.page-home .library-stack .prose p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(237, 243, 238, .78);
}

/* ---------- 05 覆盖范围 ---------- */
.page-home .coverage-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--ph-gap);
}

.page-home .coverage-cell {
  position: relative;
  padding: clamp(18px, 2.4vw, 26px);
  background: var(--char);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
}

.page-home .coverage-cell::after {
  content: "";
  position: absolute;
  left: clamp(18px, 2.4vw, 26px);
  right: clamp(18px, 2.4vw, 26px);
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--gold), rgba(227, 176, 75, 0));
}

.page-home .coverage-cell__num {
  display: flex;
  align-items: baseline;
  gap: 7px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(26px, 3.6vw, 44px);
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--lime);
}

.page-home .coverage-cell__unit {
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--gold);
}

.page-home .coverage-cell__cap {
  margin: 11px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--sage);
}

.page-home .audience {
  margin-top: clamp(34px, 5vw, 62px);
  padding-top: clamp(26px, 3.5vw, 40px);
  border-top: 1px solid var(--line);
}

.page-home .audience__title {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(19px, 2.3vw, 26px);
  color: var(--mist);
}

.page-home .audience__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-home .audience__item {
  display: grid;
  gap: 6px;
  padding: 16px 18px;
  border-left: 2px solid rgba(198, 242, 78, .5);
  background: rgba(17, 20, 19, .6);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
}

.page-home .audience__key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--lime);
}

.page-home .audience__text {
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(237, 243, 238, .78);
}

.page-home .build-note {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: clamp(30px, 4vw, 50px);
  padding: clamp(18px, 2.4vw, 26px);
  border: 1px solid var(--line);
  border-left: 3px solid var(--gold);
  border-radius: var(--r-md);
  background: rgba(27, 59, 51, .38);
}

.page-home .build-note__text {
  margin: 0;
  flex: 1 1 340px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 06 收束带 ---------- */
.page-home .ph-outro {
  position: relative;
  padding: clamp(56px, 8vw, 112px) 0 clamp(46px, 6vw, 78px);
  background: linear-gradient(180deg, var(--char) 0%, var(--ink) 100%);
}

.page-home .ph-outro::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  background: linear-gradient(90deg, var(--brick) 0%, var(--gold) 46%, var(--lime) 100%);
}

.page-home .outro-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 56px);
  align-items: start;
}

.page-home .outro-copy__title {
  margin: 12px 0 16px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(26px, 4vw, 46px);
  line-height: 1.1;
  letter-spacing: -.015em;
  color: var(--mist);
}

.page-home .outro-copy__text {
  margin: 0 0 26px;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(237, 243, 238, .78);
}

.page-home .contact-card {
  padding: clamp(20px, 2.6vw, 30px);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: rgba(27, 59, 51, .45);
  backdrop-filter: blur(6px);
}

.page-home .contact-card__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-home .contact-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 10px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
}

.page-home .contact-row__key {
  flex: 0 0 auto;
  min-width: 68px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--sage);
}

.page-home .contact-row__val {
  flex: 1 1 180px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist);
  word-break: break-word;
}

.page-home .contact-card__note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--sage);
}

.page-home .contact-card__icp {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--sage);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-home .entry-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-home .audience__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 901px) {
  .page-home .hero__score {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-home .entry-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
  }

  .page-home .entry-card:nth-child(2) {
    transform: translateY(28px);
  }

  .page-home .entry-card:nth-child(2):hover,
  .page-home .entry-card:nth-child(2):focus-visible {
    transform: translateY(24px);
  }

  .page-home .entry-card .field-note {
    opacity: 0;
    max-height: 0;
    transform: translateY(-6px);
    padding-top: 0;
    border-top-color: transparent;
    overflow: hidden;
  }

  .page-home .entry-card:hover .field-note,
  .page-home .entry-card:focus-visible .field-note,
  .page-home .entry-card:focus-within .field-note {
    opacity: 1;
    max-height: 140px;
    transform: translateY(0);
    padding-top: 13px;
    border-top-color: var(--line-strong);
  }

  .page-home .spot {
    grid-template-columns: 1.06fr 1fr;
  }

  .page-home .spot--b {
    grid-template-columns: 1fr 1.06fr;
  }

  .page-home .spot--b .spot__media {
    order: 2;
  }

  .page-home .coverage-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-home .outro-grid {
    grid-template-columns: 1.08fr .95fr;
  }
}

@media (min-width: 1100px) {
  .page-home .timeline {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 26px 40px;
  }

  .page-home .timeline__item:not(:last-child)::after {
    display: none;
  }
}

@media (max-width: 480px) {
  .page-home .hero__score {
    grid-template-columns: 1fr;
  }

  .page-home .coverage-grid {
    grid-template-columns: 1fr;
  }

  .page-home .spot__stats {
    grid-template-columns: 1fr;
  }

  .page-home .hero__actions .btn {
    width: 100%;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .entry-card,
  .page-home .field-note,
  .page-home .chapter-rail__link {
    transition: none;
  }
}