.page-home {
  --home-gap: clamp(18px, 2.4vw, 30px);
  --home-block: clamp(44px, 6vw, 88px);
  display: block;
}

/* ---------- 首屏 ---------- */

.page-home .hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--green-night);
  border-bottom: 1px solid var(--line);
}

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

.page-home .hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 40%;
  opacity: 0.34;
  filter: saturate(0.6) contrast(1.08) brightness(0.82);
}

.page-home .hero__bg::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background-image:
    repeating-linear-gradient(to bottom, rgba(0, 229, 160, 0.1) 0 1px, transparent 1px 64px),
    repeating-linear-gradient(to right, rgba(0, 229, 160, 0.075) 0 1px, transparent 1px 64px);
  pointer-events: none;
}

.page-home .hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  background:
    radial-gradient(110% 82% at 80% 6%, rgba(0, 229, 160, 0.2), transparent 62%),
    linear-gradient(180deg, rgba(6, 35, 26, 0.52) 0%, rgba(6, 35, 26, 0.88) 60%, var(--green-deep) 100%);
  pointer-events: none;
}

.page-home .hero__inner {
  position: relative;
  z-index: 3;
  display: grid;
  gap: var(--home-gap);
  padding-block: clamp(34px, 5.5vw, 72px) clamp(32px, 5vw, 64px);
}

.page-home .hero__lead {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-home .hero__eyebrow {
  color: var(--cyan);
  margin: 0;
}

.page-home .hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(30px, 5.4vw, 60px);
  line-height: 1.06;
  letter-spacing: -0.01em;
  text-transform: uppercase;
  color: var(--text);
  max-width: 26ch;
}

.page-home .hero__lede {
  margin: 0;
  max-width: 52ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.78;
  color: var(--text);
  opacity: 0.86;
}

.page-home .hero__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 4px;
}

.page-home .hero__facts {
  margin: 2px 0 0;
  color: var(--cold);
}

.page-home .hero__stats {
  margin: 0;
  display: grid;
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line);
}

.page-home .hero__stat {
  background: rgba(6, 35, 26, 0.78);
  border-left: 2px solid var(--cyan);
  padding: 13px 16px 15px;
}

.page-home .hero__statk {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cold);
}

.page-home .hero__statv {
  margin: 6px 0 0;
  display: flex;
  align-items: baseline;
  gap: 6px;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: clamp(30px, 4.6vw, 46px);
  line-height: 1;
  letter-spacing: -0.02em;
}

.page-home .hero__statu {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--cold);
}

.page-home .hero__statn {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--text);
  opacity: 0.68;
}

.page-home .hero__paths {
  display: grid;
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line);
}

.page-home .path {
  display: grid;
  gap: 4px;
  padding: 14px 16px;
  background: rgba(10, 59, 44, 0.86);
  text-decoration: none;
  border-top: 2px solid transparent;
  transition: background 0.24s var(--ease), border-color 0.24s var(--ease), transform 0.24s var(--ease);
}

.page-home .path:hover,
.page-home .path:focus-visible {
  background: var(--green-mid);
  border-top-color: var(--cyan);
  transform: translateY(-2px);
}

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

.page-home .path__name {
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-home .path__desc {
  font-size: 13px;
  line-height: 1.6;
  color: var(--cold);
}

/* ---------- 榜单 ---------- */

.page-home .section {
  padding-block: var(--home-block);
}

.page-home .boards__lede,
.page-home .rounds__lede {
  margin: 14px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--text);
  opacity: 0.82;
}

.page-home .boardzone {
  margin-top: clamp(20px, 3vw, 34px);
}

.page-home .filterbar {
  margin-bottom: clamp(18px, 2.4vw, 28px);
}

.page-home .boards {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
  grid-template-columns: minmax(0, 1fr);
}

.page-home .boards__figure {
  margin: 0;
}

.page-home .boards__stack {
  display: grid;
  gap: clamp(20px, 3vw, 30px);
  align-content: start;
}

.page-home .board {
  border: 1px solid var(--line);
  border-top: 2px solid var(--cyan);
  background: linear-gradient(180deg, rgba(14, 74, 56, 0.55) 0%, rgba(6, 35, 26, 0.35) 100%);
  box-shadow: var(--shadow-flat);
}

.page-home .board__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 14px;
  padding: 16px 18px 14px;
  border-bottom: 1px solid var(--line);
}

.page-home .board__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(19px, 2.2vw, 24px);
  letter-spacing: -0.01em;
  text-transform: uppercase;
  color: var(--text);
}

.page-home .board__meta {
  margin: 0;
  color: var(--cold);
}

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

.page-home .board__row {
  position: relative;
  display: grid;
  grid-template-columns: 2.4rem minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  border-bottom: 1px solid var(--line-soft);
  transition: background 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-home .board__row:last-child {
  border-bottom: 0;
}

.page-home .board__row:hover {
  background: rgba(0, 229, 160, 0.07);
  transform: translateY(-2px);
}

.page-home .board__rank {
  font-size: 13px;
  color: var(--cold);
}

.page-home .board__row:first-child .board__rank {
  color: var(--cyan);
}

.page-home .board__name {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 10px;
  font-size: 15px;
  color: var(--text);
}

.page-home .board__name em {
  font-style: normal;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--orange);
  border: 1px solid rgba(255, 107, 53, 0.45);
  padding: 1px 5px;
}

.page-home .board__name small {
  flex-basis: 100%;
  font-size: 12px;
  color: var(--cold);
}

.page-home .board__val {
  display: flex;
  align-items: baseline;
  gap: 3px;
  font-family: var(--font-mono);
  font-size: clamp(20px, 2.6vw, 26px);
  letter-spacing: -0.02em;
  color: var(--text);
}

.page-home .board__unit {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cold);
}

.page-home .board__tip {
  position: absolute;
  right: 16px;
  bottom: calc(100% - 6px);
  z-index: 6;
  width: max-content;
  max-width: min(280px, 82vw);
  padding: 9px 12px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--text);
  background: var(--green-mid);
  border: 1px solid var(--cyan);
  box-shadow: var(--shadow-flat);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.2s var(--ease), visibility 0.2s var(--ease);
}

/* ---------- 轮次时间线 ---------- */

.page-home .rounds__figure {
  margin: clamp(20px, 3vw, 30px) 0 0;
}

.page-home .rounds__track {
  list-style: none;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(46px, 1fr));
  gap: 8px;
  border-top: 1px solid var(--line);
  padding-top: 18px;
}

.page-home .round__link {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 42px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  text-decoration: none;
  border: 1px solid var(--line);
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-home .round--archive .round__link {
  color: var(--cold);
  border-color: rgba(142, 154, 175, 0.32);
  background: rgba(142, 154, 175, 0.06);
}

.page-home .round--live .round__link {
  color: var(--cyan);
  border-color: rgba(0, 229, 160, 0.42);
  background: rgba(0, 229, 160, 0.08);
}

.page-home .round__link:hover,
.page-home .round__link:focus-visible {
  background: var(--green-mid);
  border-color: var(--cyan);
  color: var(--text);
}

.page-home .round__link::after {
  content: attr(aria-label);
  position: absolute;
  left: 50%;
  bottom: calc(100% + 8px);
  transform: translateX(-50%);
  z-index: 7;
  padding: 6px 10px;
  white-space: nowrap;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--text);
  background: var(--green-night);
  border: 1px solid var(--line);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.18s var(--ease), visibility 0.18s var(--ease);
}

.page-home .rounds__legend {
  margin: 16px 0 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 18px;
  color: var(--cold);
}

.page-home .rounds__dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 6px;
  border: 1px solid currentColor;
  vertical-align: middle;
}

.page-home .rounds__dot--live {
  color: var(--cyan);
  background: rgba(0, 229, 160, 0.35);
}

.page-home .rounds__dot--archive {
  color: var(--cold);
}

/* ---------- 口径纸面区 ---------- */

.page-home .method-section {
  background: var(--paper);
  color: var(--ink);
  border-top: 1px solid var(--paper-line);
  border-bottom: 1px solid var(--paper-line);
}

.page-home .method__head {
  max-width: 60ch;
}

.page-home .method-section .section__index {
  color: var(--orange-ink);
}

.page-home .method-section .section__title {
  color: var(--ink);
}

.page-home .method__lede {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(11, 19, 16, 0.78);
}

.page-home .method__grid {
  margin-top: clamp(24px, 3.4vw, 40px);
  display: grid;
  gap: 1px;
  background: var(--paper-line);
  border: 1px solid var(--paper-line);
  grid-template-columns: minmax(0, 1fr);
}

.page-home .method__item {
  background: var(--paper);
  padding: 20px 20px 22px;
  border-left: 2px solid var(--orange);
}

.page-home .method__key {
  margin: 0;
  color: rgba(11, 19, 16, 0.6);
}

.page-home .method__val {
  margin: 10px 0 0;
  font-size: clamp(20px, 2.6vw, 28px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-home .method__val.num {
  font-family: var(--font-mono);
}

.page-home .method__note {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.76;
  color: rgba(11, 19, 16, 0.76);
}

.page-home .method__close {
  margin: clamp(22px, 3vw, 32px) 0 0;
  font-size: 14px;
  line-height: 1.78;
  color: rgba(11, 19, 16, 0.72);
  max-width: 76ch;
}

.page-home .method__close a {
  color: var(--orange-ink);
  text-underline-offset: 3px;
}

/* ---------- 栏路面板 ---------- */

.page-home .routes {
  margin-top: clamp(20px, 3vw, 32px);
  display: grid;
  gap: clamp(20px, 3vw, 30px);
}

.page-home .routes__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border: 1px solid var(--line);
  border-top: 2px solid var(--cyan);
  background: linear-gradient(180deg, rgba(14, 74, 56, 0.4) 0%, rgba(6, 35, 26, 0.28) 100%);
}

.page-home .routes__row {
  display: grid;
  gap: 6px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line-soft);
  transition: background 0.2s var(--ease);
}

.page-home .routes__row:last-child {
  border-bottom: 0;
}

.page-home .routes__row:hover {
  background: rgba(0, 229, 160, 0.06);
}

.page-home .routes__no {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cold);
}

.page-home .routes__name {
  font-family: var(--font-display);
  font-size: 19px;
  letter-spacing: -0.01em;
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  justify-self: start;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

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

.page-home .routes__shape {
  font-size: 13px;
  line-height: 1.7;
  color: var(--cold);
}

.page-home .routes__freq {
  justify-self: start;
}

.page-home .routes__media {
  margin: 0;
}

/* ---------- 响应式与动效 ---------- */

@media (min-width: 620px) {
  .page-home .hero__stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .page-home .routes__row {
    grid-template-columns: 3rem minmax(0, 1fr) auto;
    align-items: center;
    gap: 6px 16px;
  }

  .page-home .routes__no {
    grid-row: 1 / span 2;
    align-self: start;
    padding-top: 4px;
  }

  .page-home .routes__name {
    grid-column: 2;
  }

  .page-home .routes__shape {
    grid-column: 2;
    grid-row: 2;
  }

  .page-home .routes__freq {
    grid-column: 3;
    grid-row: 1 / span 2;
    align-self: center;
  }
}

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

@media (min-width: 900px) {
  .page-home .hero__inner {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
    grid-template-areas:
      "crumbs crumbs"
      "lead lead"
      "stats stats"
      "paths paths";
    align-items: start;
  }

  .page-home .hero__inner .crumbs {
    grid-area: crumbs;
  }

  .page-home .hero__lead {
    grid-area: lead;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    column-gap: clamp(20px, 3vw, 40px);
    align-items: start;
  }

  .page-home .hero__eyebrow {
    grid-column: 1 / -1;
  }

  .page-home .hero__title {
    grid-column: 1;
    grid-row: 2 / span 3;
  }

  .page-home .hero__lede {
    grid-column: 2;
  }

  .page-home .hero__acts {
    grid-column: 2;
  }

  .page-home .hero__facts {
    grid-column: 2;
  }

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

  .page-home .hero__paths {
    grid-area: paths;
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-home .boards {
    grid-template-columns: minmax(0, 268px) minmax(0, 1fr);
    align-items: start;
  }

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

@media (min-width: 1080px) {
  .page-home .method__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-home .boards {
    grid-template-columns: minmax(0, 308px) minmax(0, 1fr);
  }
}

@media (hover: hover) {
  .page-home .board__row:hover .board__tip,
  .page-home .board__row:focus-within .board__tip {
    opacity: 1;
    visibility: visible;
  }

  .page-home .round__link:hover::after,
  .page-home .round__link:focus-visible::after {
    opacity: 1;
    visibility: visible;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .path,
  .page-home .board__row,
  .page-home .routes__row,
  .page-home .round__link,
  .page-home .board__tip,
  .page-home .round__link::after {
    transition: none;
  }

  .page-home .path:hover,
  .page-home .path:focus-visible,
  .page-home .board__row:hover {
    transform: none;
  }
}