/* ============ 页面作用域：home ============ */
.page-home {
  --home-line: rgba(65, 90, 119, .35);
  --home-gold-line: rgba(242, 201, 76, .55);
  --home-card-bg: rgba(27, 38, 59, .72);
  --home-cut: 16px;
  background-color: var(--color-primary-dark);
  background-image:
    linear-gradient(rgba(27, 38, 59, .55) 1px, transparent 1px),
    linear-gradient(90deg, rgba(27, 38, 59, .55) 1px, transparent 1px);
  background-size: 36px 36px;
  color: var(--color-neutral-light);
  overflow-x: hidden;
}

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

/* ---------- 首屏门户声明 ---------- */
.home-intro {
  position: relative;
  padding: clamp(2.75rem, 7vw, 5.5rem) 0 2.5rem;
  border-bottom: 1px solid var(--home-gold-line);
}

.home-intro::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(118deg, transparent 0 66%, rgba(242, 201, 76, .07) 66% 67%, transparent 67%),
    radial-gradient(circle at 84% 18%, rgba(155, 93, 229, .14), transparent 30%);
  pointer-events: none;
}

.home-intro .container {
  position: relative;
}

.home-intro__kicker {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  align-items: center;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--color-neutral-mid);
  margin: 0 0 1.25rem;
}

.home-intro__sep {
  color: var(--color-secondary-gold);
}

.home-intro__lang {
  color: var(--color-highlight-teal);
}

.home-intro h1 {
  font-family: var(--font-headline);
  font-size: clamp(2rem, 6vw, 3.6rem);
  line-height: 1.08;
  letter-spacing: .01em;
  margin: 0 0 1.1rem;
  font-weight: 900;
  color: var(--color-neutral-light);
  text-shadow: 3px 3px 0 rgba(65, 90, 119, .45);
  max-width: 14em;
}

.home-intro__lede {
  max-width: 52rem;
  margin: 0;
  font-size: .96rem;
  line-height: 1.85;
  color: var(--color-neutral-mid);
  border-left: 3px solid var(--color-secondary-gold);
  padding-left: 1rem;
}

.home-intro__toc {
  display: grid;
  grid-template-columns: 1fr;
  gap: .55rem;
  margin-top: 2.25rem;
}

.home-intro__toc-item {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: .75rem;
  background: var(--home-card-bg);
  border: 1px solid var(--home-line);
  border-left: 3px solid var(--color-secondary-gold);
  padding: .85rem 1rem;
  text-decoration: none;
  color: var(--color-neutral-light);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
  transition: transform .25s, border-color .25s, background .25s;
}

.home-intro__toc-item:hover,
.home-intro__toc-item:focus-visible {
  transform: translateY(-2px);
  border-color: var(--color-secondary-gold);
  background: rgba(65, 90, 119, .35);
}

.home-intro__toc-num {
  font-family: var(--font-mono);
  color: var(--color-secondary-gold);
  font-size: .8rem;
}

.home-intro__toc-name {
  font-weight: 700;
  font-size: .92rem;
}

.home-intro__toc-tag {
  font-size: .7rem;
  color: var(--color-neutral-mid);
  text-align: right;
}

/* ---------- 区块头部（页面局部微调） ---------- */
.page-home .section-head {
  display: flex;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: .75rem 1rem;
  margin-bottom: 1.75rem;
}

.page-home .section-head__title-group {
  flex: 1 1 auto;
  min-width: 0;
}

.page-home .section-head h2 {
  font-family: var(--font-headline);
  font-size: clamp(1.5rem, 4vw, 2.3rem);
  line-height: 1.18;
  margin: 0 0 .35rem;
  color: var(--color-neutral-light);
}

.page-home .section-head p {
  margin: 0;
  font-size: .88rem;
  line-height: 1.7;
  color: var(--color-neutral-mid);
  max-width: 48rem;
}

/* ---------- 联赛数据面板 ---------- */
.home-leagues {
  padding: clamp(2.5rem, 6vw, 4.5rem) 0;
  border-bottom: 1px solid var(--home-line);
}

.league-map {
  margin-bottom: 1.75rem;
}

.league-map__img {
  display: block;
  width: 100%;
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 0 100%);
  background: var(--color-background-alt);
}

.league-map__caption {
  display: inline-block;
  margin-top: .45rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--color-neutral-mid);
}

/* 切换器 */
.league-switcher {
  position: relative;
}

.league-switcher__input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.league-switcher__bar {
  display: flex;
  gap: .3rem;
  border-bottom: 1px solid var(--home-line);
  padding-bottom: .75rem;
  margin-bottom: 1.25rem;
}

.league-switcher__label {
  font-family: var(--font-mono);
  font-size: .82rem;
  letter-spacing: .06em;
  color: var(--color-neutral-mid);
  padding: .5rem .9rem;
  cursor: pointer;
  border: 1px solid transparent;
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 0 100%);
  transition: background .2s, border-color .2s, color .2s;
}

.league-switcher__label:hover {
  color: var(--color-neutral-light);
  border-color: var(--home-line);
}

#home-tab-featured:checked ~ .league-switcher__bar .league-switcher__label--featured,
#home-tab-all:checked ~ .league-switcher__bar .league-switcher__label--all {
  background: var(--color-secondary-gold);
  color: var(--color-primary-dark);
  border-color: var(--color-secondary-gold);
}

#home-tab-featured:focus-visible ~ .league-switcher__bar .league-switcher__label--featured,
#home-tab-all:focus-visible ~ .league-switcher__bar .league-switcher__label--all {
  outline: 2px solid var(--color-secondary-gold);
  outline-offset: 2px;
}

.league-switcher__pane {
  display: none;
}

#home-tab-featured:checked ~ .league-switcher__pane--featured {
  display: block;
}

#home-tab-all:checked ~ .league-switcher__pane--all {
  display: block;
}

/* 重点联赛网格 */
.league-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: .85rem;
}

.league-card {
  background: linear-gradient(135deg, rgba(65, 90, 119, .3), rgba(27, 38, 59, .75));
  border: 1px solid var(--home-line);
  clip-path: polygon(0 0, calc(100% - var(--home-cut, 16px)) 0, 100% var(--home-cut, 16px), 100% 100%, 0 100%);
  transition: transform .2s, border-color .2s;
}

.league-card:hover {
  transform: translateY(-3px);
  border-color: var(--color-secondary-gold);
}

.league-card__head {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: .15rem .6rem;
  padding: .9rem 1.1rem;
  cursor: pointer;
  list-style: none;
}

.league-card__head::-webkit-details-marker {
  display: none;
}

.league-card__name {
  font-family: var(--font-headline);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--color-neutral-light);
}

.league-card__code {
  grid-column: 2;
  grid-row: 1 / span 2;
  font-family: var(--font-mono);
  font-size: .68rem;
  color: var(--color-neutral-mid);
  letter-spacing: .14em;
}

.league-card__hint {
  grid-column: 1;
  font-size: .7rem;
  color: var(--color-highlight-teal);
}

.league-card__hint::before {
  content: "+ ";
  color: var(--color-secondary-gold);
}

.league-card[open] .league-card__hint::before {
  content: "– ";
}

.league-card__body {
  padding: 0 1.1rem 1.1rem;
}

.league-card__chart {
  display: block;
  width: 100%;
  height: auto;
  margin: 0 0 .75rem;
  background: rgba(13, 27, 42, .5);
  padding: .45rem;
}

.league-card__feats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: .35rem;
}

.league-card__feats li {
  font-size: .72rem;
  color: var(--color-neutral-mid);
  border: 1px solid var(--home-line);
  padding: .2rem .5rem;
  clip-path: polygon(0 0, calc(100% - 6px) 0, 100% 6px, 100% 100%, 0 100%);
}

/* 三十个联赛完整索引 */
.league-index {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.league-index__group h4 {
  font-family: var(--font-mono);
  font-size: .8rem;
  color: var(--color-secondary-gold);
  border-bottom: 1px solid var(--home-gold-line);
  padding-bottom: .4rem;
  margin: 0 0 .8rem;
  letter-spacing: .08em;
}

.league-index__mark {
  color: var(--color-accent-red);
  margin-right: .35rem;
}

.league-index__group ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  margin: 0;
  padding: 0;
}

.league-index__group li {
  font-size: .82rem;
  padding: .35rem .65rem;
  background: rgba(27, 38, 59, .6);
  border: 1px solid var(--home-line);
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 0 100%);
}

.league-index__note {
  margin: 1.25rem 0 0;
  font-size: .84rem;
  line-height: 1.7;
  color: var(--color-neutral-mid);
  border-left: 3px solid var(--color-highlight-teal);
  padding-left: .85rem;
}

/* ---------- V4 桌面端更新 ---------- */
.home-update {
  padding: clamp(2.5rem, 6vw, 4.5rem) 0;
  background: linear-gradient(180deg, rgba(27, 38, 59, .5), rgba(13, 27, 42, .92));
  border-bottom: 1px solid var(--home-line);
}

.home-update__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  align-items: center;
}

.update-log {
  background: rgba(13, 27, 42, .88);
  border: 1px solid var(--home-line);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%);
}

.page-home .update-log.cut-panel {
  padding: 0;
}

.update-log__bar {
  display: flex;
  align-items: center;
  gap: .45rem;
  padding: .6rem .9rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--color-neutral-mid);
  background: rgba(65, 90, 119, .25);
  border-bottom: 1px solid var(--home-line);
}

.update-log__dot {
  width: .5rem;
  height: .5rem;
  border-radius: 50%;
  background: var(--color-highlight-teal);
}

.update-log__dot:nth-child(2) {
  background: var(--color-secondary-gold);
}

.update-log__dot:nth-child(3) {
  background: var(--color-accent-red);
}

.update-log__file {
  margin-left: .25rem;
  letter-spacing: .04em;
}

.update-log__list {
  margin: 0;
  padding: .9rem 1.1rem 1.1rem;
}

.update-log__list div {
  display: grid;
  grid-template-columns: 4.5rem 1fr;
  gap: .75rem;
  padding: .55rem 0;
  border-bottom: 1px dashed rgba(65, 90, 119, .3);
}

.update-log__list div:last-child {
  border-bottom: 0;
}

.update-log__list dt {
  font-family: var(--font-mono);
  font-size: .74rem;
  color: var(--color-secondary-gold);
}

.update-log__list dd {
  margin: 0;
  font-size: .86rem;
  line-height: 1.65;
  color: var(--color-neutral-light);
}

.page-home .update-log .btn {
  margin: 0 1.1rem 1.15rem;
}

.update-figure {
  margin: 0;
}

.update-figure img {
  width: 100%;
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%);
  background: var(--color-background-alt);
}

.update-figure figcaption {
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--color-neutral-mid);
  margin-top: .45rem;
}

/* ---------- 首次访问指南 ---------- */
.home-guide {
  padding: clamp(2.5rem, 6vw, 4.5rem) 0;
  border-bottom: 1px solid var(--home-line);
}

.home-guide__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  align-items: start;
}

.guide-steps {
  list-style: none;
  margin: 0;
  padding: 0;
}

.guide-steps li {
  position: relative;
  padding: 1rem 1rem 1rem 3.5rem;
  margin-bottom: .75rem;
  background: rgba(27, 38, 59, .6);
  border: 1px solid var(--home-line);
  border-right: 3px solid var(--color-secondary-gold);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
}

.guide-steps__num {
  position: absolute;
  left: .9rem;
  top: .95rem;
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-secondary-gold);
  background: rgba(13, 27, 42, .8);
  width: 2rem;
  height: 2rem;
  display: grid;
  place-items: center;
  border: 1px solid var(--home-gold-line);
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 0 100%);
}

.guide-steps h3 {
  margin: 0 0 .3rem;
  font-size: 1.02rem;
  color: var(--color-neutral-light);
}

.guide-steps p {
  margin: 0;
  font-size: .85rem;
  line-height: 1.7;
  color: var(--color-neutral-mid);
}

.guide-figure {
  margin: 0;
}

.guide-figure img {
  width: 100%;
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%);
  background: var(--color-background-alt);
}

.guide-figure figcaption {
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--color-neutral-mid);
  margin-top: .4rem;
}

.page-home .guide-card.cut-panel {
  grid-column: 1;
  background: rgba(65, 90, 119, .18);
  border: 1px solid var(--home-line);
  padding: 1.1rem 1.25rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .75rem 1rem;
}

.guide-card p {
  margin: 0;
  flex: 1 1 14rem;
  font-size: .88rem;
  line-height: 1.7;
  color: var(--color-neutral-light);
}

/* ---------- 球迷入口变更提醒 ---------- */
.home-reminder {
  padding: clamp(2.5rem, 6vw, 4.5rem) 0;
  position: relative;
  background: linear-gradient(105deg, rgba(27, 38, 59, .85) 0 62%, rgba(13, 27, 42, .94) 62% 100%);
  border-bottom: 1px solid var(--home-line);
}

.home-reminder__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
  align-items: center;
}

.reminder-path__svg {
  display: block;
  width: 100%;
  height: auto;
  background: rgba(13, 27, 42, .55);
  border: 1px solid var(--home-line);
  padding: .5rem;
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 0 100%);
}

.reminder-path__dash {
  stroke-dasharray: 5 8;
  animation: reminder-dash .9s linear infinite;
}

@keyframes reminder-dash {
  to {
    stroke-dashoffset: -13;
  }
}

.reminder-content h3 {
  font-size: 1.3rem;
  margin: 0 0 .75rem;
  color: var(--color-neutral-light);
}

.reminder-content p {
  font-size: .9rem;
  line-height: 1.75;
  color: var(--color-neutral-mid);
  margin: 0 0 1rem;
}

.reminder-content ul {
  list-style: none;
  margin: 0 0 1.15rem;
  padding: 0;
}

.reminder-content li {
  position: relative;
  padding: .45rem 0 .45rem 1.5rem;
  border-bottom: 1px dashed rgba(65, 90, 119, .3);
  font-size: .88rem;
  color: var(--color-neutral-light);
}

.reminder-content li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--color-secondary-gold);
  font-family: var(--font-mono);
}

.reminder-figure {
  margin: 0;
}

.reminder-figure img {
  width: 100%;
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%);
  background: var(--color-background-alt);
}

.reminder-figure figcaption {
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--color-neutral-mid);
  margin-top: .45rem;
}

/* ---------- 赛后保障与支持入口 ---------- */
.home-support {
  padding: clamp(2.5rem, 6vw, 4rem) 0;
  border-bottom: 1px solid var(--home-gold-line);
}

.home-support__inner {
  text-align: center;
  background:
    linear-gradient(135deg, rgba(65, 90, 119, .22), transparent 50%),
    linear-gradient(315deg, rgba(242, 201, 76, .08), transparent 55%);
  border: 1px solid var(--home-line);
  clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 24px, 100% 100%, 0 100%);
  padding: 2rem 1.25rem;
}

.home-support__title {
  font-size: clamp(1.25rem, 3vw, 1.9rem);
  margin: 0 0 1.25rem;
  color: var(--color-neutral-light);
}

.home-support__stats {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem 2.25rem;
  margin-bottom: 1.25rem;
}

.support-stat {
  display: grid;
  gap: .25rem;
}

.support-stat__value {
  font-family: var(--font-mono);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--color-secondary-gold);
  line-height: 1;
}

.support-stat__label {
  font-size: .75rem;
  color: var(--color-neutral-mid);
  letter-spacing: .1em;
}

.home-support__note {
  max-width: 40rem;
  margin: 0 auto 1.25rem;
  font-size: .88rem;
  line-height: 1.75;
  color: var(--color-neutral-mid);
}

.home-support__links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: .6rem;
}

/* ---------- 媒体查询：平板 ---------- */
@media (min-width: 640px) {
  .home-intro__toc {
    grid-template-columns: 1fr 1fr;
  }

  .league-grid {
    grid-template-columns: 1fr 1fr;
  }

  .league-index {
    grid-template-columns: 1fr 1fr;
  }

  .home-support__stats {
    gap: 1rem 3.5rem;
  }

  .update-log__list {
    padding: 1rem 1.1rem 1.2rem;
  }
}

/* ---------- 媒体查询：桌面 ---------- */
@media (min-width: 900px) {
  .home-update__grid {
    grid-template-columns: 1.2fr .8fr;
  }

  .home-guide__grid {
    grid-template-columns: 1.1fr .9fr;
  }

  .page-home .guide-card.cut-panel {
    grid-column: 1 / -1;
  }

  .home-reminder__grid {
    grid-template-columns: .85fr 1.15fr 1fr;
  }
}

/* ---------- 媒体查询：宽桌面 ---------- */
@media (min-width: 1024px) {
  .league-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .league-index {
    grid-template-columns: repeat(3, 1fr);
  }

  .home-intro__toc {
    grid-template-columns: repeat(4, 1fr);
  }

  .league-map__img {
    margin-left: auto;
    margin-right: auto;
  }
}

/* ---------- 动画降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .reminder-path__dash {
    animation: none;
  }

  .home-intro__toc-item,
  .league-card {
    transition: none;
  }
}