.page-home {
  --home-hair: 1px solid var(--c-grid);
  --home-section-pad: clamp(48px, 7vw, 92px);
  background: var(--c-night);
  color: var(--c-white);
}

.page-home .container {
  max-width: var(--wrap);
  margin: 0 auto;
  padding-left: var(--pad-x);
  padding-right: var(--pad-x);
}

/* ---------- 首屏 ---------- */

.page-home .home-hero {
  padding: clamp(24px, 4vw, 48px) 0 clamp(42px, 6vw, 76px);
  border-bottom: var(--home-hair);
  background-image: linear-gradient(180deg, rgba(47, 191, 113, 0.06), rgba(10, 26, 47, 0) 62%);
}

.page-home .home-hero .breadcrumb {
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-home .home-hero__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 52px);
  align-items: start;
}

.page-home .home-hero__intro {
  min-width: 0;
}

.page-home .home-hero h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 5.2vw, 58px);
  line-height: 1.08;
  letter-spacing: -0.01em;
  margin: 10px 0 18px;
  max-width: 18em;
}

.page-home .home-hero .lead {
  font-size: clamp(15px, 1.15vw, 17px);
  line-height: 1.78;
  color: var(--c-mist);
  max-width: 40em;
  margin: 0 0 clamp(24px, 3.4vw, 38px);
}

.page-home .home-index {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--home-hair);
}

.page-home .home-index__item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 4px 14px;
  align-items: baseline;
  padding: 12px 6px;
  border-bottom: var(--home-hair);
  border-left: 2px solid transparent;
  transition: background 0.28s var(--ease), border-color 0.28s var(--ease),
    opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

.page-home .home-index__item:hover {
  background: var(--c-stand);
  border-left-color: var(--c-orange);
}

.page-home .home-index__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-green);
}

.page-home .home-index__link {
  color: var(--c-white);
  font-size: 15.5px;
  font-weight: 500;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s var(--ease), color 0.25s var(--ease);
}

.page-home .home-index__link:hover,
.page-home .home-index__link:focus-visible {
  color: var(--c-green-hi);
  border-bottom-color: var(--c-green-hi);
}

.page-home .home-index__note {
  grid-column: 2;
  font-size: 12.5px;
  color: var(--c-mist);
  letter-spacing: 0.02em;
}

.page-home .home-hero__media {
  margin: 0;
  border: var(--home-hair);
  background: var(--c-stand);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.page-home .home-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 4 / 5;
  filter: saturate(0.86) contrast(1.06);
}

.page-home .media__caption {
  display: block;
  padding: 10px 14px 14px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--c-mist);
  border-top: var(--home-hair);
}

/* ---------- 通用章节 ---------- */

.page-home .home-section {
  padding: var(--home-section-pad) 0;
  border-bottom: var(--home-hair);
  position: relative;
}

.page-home .home-section::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(rgba(30, 59, 92, 0.34) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30, 59, 92, 0.34) 1px, transparent 1px);
  background-size: 84px 84px;
  opacity: 0.22;
}

.page-home .home-section > .container {
  position: relative;
  z-index: 1;
}

.page-home .section-head {
  margin-bottom: clamp(26px, 3.6vw, 44px);
}

.page-home .home-section h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(25px, 3.4vw, 40px);
  line-height: 1.16;
  letter-spacing: -0.005em;
  margin: 8px 0 0;
  max-width: 22em;
}

.page-home .home-section__lead {
  margin: 14px 0 0;
  color: var(--c-mist);
  font-size: 15.5px;
  line-height: 1.75;
  max-width: 40em;
}

/* ---------- 01 快照 ---------- */

.page-home .home-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--gap);
}

.page-home .home-stat {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 20px 18px 18px;
  background: var(--c-stand);
  border: var(--home-hair);
  box-shadow: var(--shadow);
}

.page-home .home-stat::after {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 26px;
  height: 3px;
  background: var(--c-green);
}

.page-home .home-stat:nth-child(3)::after {
  background: var(--c-orange);
}

.page-home .home-stat__num {
  font-family: var(--font-mono);
  font-size: clamp(30px, 3.6vw, 44px);
  font-weight: 700;
  line-height: 1;
  color: var(--c-white);
  font-variant-numeric: tabular-nums;
}

.page-home .home-stat__unit {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--c-green);
}

.page-home .home-stat__label {
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--c-mist);
}

.page-home .home-snapshot-note {
  margin-top: clamp(20px, 3vw, 30px);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 22px;
  padding: 18px 20px;
  background: var(--c-stand);
  border: var(--home-hair);
  border-left: 3px solid var(--c-orange);
}

.page-home .home-snapshot-note__text {
  margin: 0;
  flex: 1 1 320px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--c-white);
}

/* ---------- 02 级别入口 ---------- */

.page-home .home-levels {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--home-hair);
}

.page-home .home-levels__row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 16px;
  padding: 14px 12px;
  border-bottom: var(--home-hair);
  border-left: 2px solid transparent;
  transition: background 0.26s var(--ease), border-color 0.26s var(--ease),
    opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

.page-home .home-levels__row:hover,
.page-home .home-levels__row:focus-within {
  background: var(--c-stand);
  border-left-color: var(--c-orange);
}

.page-home .home-levels__code {
  flex: 0 0 52px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--c-green);
}

.page-home .home-levels__name {
  flex: 0 0 auto;
  font-size: 16px;
  font-weight: 500;
  color: var(--c-white);
}

.page-home .home-levels__meta {
  flex: 1 1 200px;
  font-size: 13px;
  color: var(--c-mist);
}

.page-home .home-levels__go {
  flex: 0 0 auto;
  margin-left: auto;
  font-size: 13px;
  color: var(--c-green-hi);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.24s var(--ease);
}

.page-home .home-levels__go:hover,
.page-home .home-levels__go:focus-visible {
  border-bottom-color: var(--c-green-hi);
}

/* ---------- 03 赛季纵深 ---------- */

.page-home .home-seasons__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3.4vw, 42px);
  align-items: start;
}

.page-home .home-seasons__media {
  margin: 0;
  border: var(--home-hair);
  background: var(--c-stand);
  overflow: hidden;
}

.page-home .home-seasons__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(0.9);
}

.page-home .home-seasons__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: season;
}

.page-home .home-seasons__step {
  position: relative;
  padding: 0 0 22px 26px;
  border-left: 1px solid var(--c-grid);
}

.page-home .home-seasons__step:last-child {
  padding-bottom: 0;
}

.page-home .home-seasons__step::before {
  content: "";
  position: absolute;
  left: -4.5px;
  top: 6px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-night);
  border: 1px solid var(--c-green);
}

.page-home .home-seasons__step:nth-child(3)::before {
  background: var(--c-orange);
  border-color: var(--c-orange);
}

.page-home .home-seasons__year {
  display: block;
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--c-green-hi);
  margin-bottom: 6px;
}

.page-home .home-seasons__step:nth-child(3) .home-seasons__year {
  color: var(--c-orange);
}

.page-home .home-seasons__step p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--c-white);
  max-width: 38em;
}

.page-home .home-axis {
  margin-top: clamp(26px, 3.6vw, 46px);
  padding: 20px 18px 8px;
  background: var(--c-stand);
  border: var(--home-hair);
  overflow-x: auto;
}

.page-home .home-axis__svg {
  display: block;
  width: 100%;
  min-width: 520px;
  height: auto;
}

.page-home .home-axis__line {
  stroke: var(--c-grid);
  stroke-width: 1;
}

.page-home .home-axis__tick line {
  stroke: var(--c-grid);
  stroke-width: 1;
}

.page-home .home-axis__tick text {
  fill: var(--c-mist);
  font-family: var(--font-mono);
  font-size: 12px;
  text-anchor: middle;
  letter-spacing: 0.06em;
}

.page-home .home-axis__tick.is-current line {
  stroke: var(--c-orange);
  stroke-width: 2;
}

.page-home .home-axis__tick.is-current circle {
  fill: var(--c-orange);
}

.page-home .home-axis__tick.is-current text {
  fill: var(--c-orange);
}

/* ---------- 04 四条主线 ---------- */

.page-home .home-tracks__media {
  margin: 0 0 clamp(20px, 3vw, 32px);
  border: var(--home-hair);
  background: var(--c-stand);
  overflow: hidden;
}

.page-home .home-tracks__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(0.88);
}

.page-home .home-tracks {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-home .home-track {
  border: var(--home-hair);
  background: var(--c-stand);
  transition: border-color 0.28s var(--ease), opacity 0.6s var(--ease),
    transform 0.6s var(--ease);
}

.page-home .home-track[open] {
  border-color: var(--c-green);
}

.page-home .home-track--marker[open] {
  border-color: var(--c-orange);
}

.page-home .home-track__summary {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 4px 12px;
  align-items: baseline;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
}

.page-home .home-track__summary::-webkit-details-marker {
  display: none;
}

.page-home .home-track__summary::after {
  content: "＋";
  position: absolute;
  right: 18px;
  color: var(--c-green);
  font-size: 15px;
  transition: transform 0.28s var(--ease);
}

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

.page-home .home-track[open] .home-track__summary::after {
  content: "－";
  color: var(--c-orange);
}

.page-home .home-track__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-mist);
}

.page-home .home-track__title {
  font-size: 17px;
  font-weight: 700;
  color: var(--c-white);
  font-family: var(--font-display);
  letter-spacing: 0.01em;
}

.page-home .home-track__meta {
  grid-column: 2;
  font-size: 12.5px;
  color: var(--c-mist);
  padding-right: 26px;
}

.page-home .home-track__body {
  padding: 4px 18px 20px 68px;
  border-top: 1px solid rgba(30, 59, 92, 0.7);
}

.page-home .home-track__body p {
  margin: 12px 0 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--c-white);
  max-width: 44em;
}

.page-home .home-track__case {
  color: var(--c-mist);
  padding-left: 12px;
  border-left: 2px solid var(--c-grid);
}

.page-home .home-track__link {
  display: inline-block;
  margin-top: 14px;
  font-size: 13.5px;
  color: var(--c-green-hi);
  text-decoration: none;
  border-bottom: 1px solid var(--c-grid);
  transition: border-color 0.24s var(--ease);
}

.page-home .home-track__link:hover,
.page-home .home-track__link:focus-visible {
  border-bottom-color: var(--c-green-hi);
}

/* ---------- 05 交叉查阅 ---------- */

.page-home .home-cross__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 36px);
  align-items: start;
}

.page-home .home-cross__combos {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-home .home-combo {
  padding: 18px;
  background: var(--c-stand);
  border: var(--home-hair);
  border-top: 2px solid var(--c-grid);
  transition: border-color 0.28s var(--ease), opacity 0.6s var(--ease),
    transform 0.6s var(--ease);
}

.page-home .home-combo:hover {
  border-top-color: var(--c-orange);
}

.page-home .home-combo h3 {
  margin: 12px 0 8px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 17px;
  line-height: 1.35;
  color: var(--c-white);
  letter-spacing: 0.005em;
}

.page-home .home-combo p {
  margin: 0;
  font-size: 14px;
  line-height: 1.76;
  color: var(--c-mist);
}

.page-home .home-cross__media {
  margin: 0;
  border: var(--home-hair);
  background: var(--c-stand);
  overflow: hidden;
}

.page-home .home-cross__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 5 / 2;
  object-fit: cover;
  filter: saturate(0.82) contrast(1.05);
}

.page-home .home-cross__note {
  margin: clamp(18px, 2.6vw, 28px) 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--c-mist);
  padding-left: 14px;
  border-left: 2px solid var(--c-green);
  max-width: 46em;
}

/* ---------- 06 更新节奏与联系 ---------- */

.page-home .home-desk__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.6vw, 44px);
  align-items: start;
}

.page-home .home-desk__steps {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
}

.page-home .home-desk__step {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 16px 18px;
  margin-bottom: 10px;
  background: var(--c-stand);
  border: var(--home-hair);
  border-left: 3px solid var(--c-green);
}

.page-home .home-desk__step:nth-child(2) {
  border-left-color: var(--c-orange);
}

.page-home .home-desk__step:nth-child(3) {
  border-left-color: var(--c-grid);
}

.page-home .home-desk__when {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--c-green-hi);
}

.page-home .home-desk__step:nth-child(2) .home-desk__when {
  color: var(--c-orange);
}

.page-home .home-desk__step:nth-child(3) .home-desk__when {
  color: var(--c-mist);
}

.page-home .home-desk__step p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--c-white);
}

.page-home .home-desk__team {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-mist);
  max-width: 42em;
}

.page-home .home-desk__contact {
  padding: clamp(20px, 3vw, 30px);
  background: var(--c-stand);
  border: var(--home-hair);
  box-shadow: var(--shadow);
}

.page-home .home-desk__contact-title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(19px, 2.2vw, 24px);
  line-height: 1.3;
  color: var(--c-white);
}

.page-home .home-desk__contact-lead {
  margin: 0 0 18px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--c-mist);
}

.page-home .home-desk__contact .contact-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: var(--home-hair);
}

.page-home .home-desk__contact .contact-list__item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 4px 12px;
  align-items: center;
  padding: 12px 0;
  border-bottom: var(--home-hair);
}

.page-home .home-desk__contact .contact-list__label {
  grid-column: 1;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-mist);
}

.page-home .home-desk__contact .contact-list__value {
  grid-column: 1;
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--c-white);
  word-break: break-word;
}

.page-home .home-desk__contact .copy-btn {
  grid-column: 2;
  grid-row: 1 / span 2;
  align-self: center;
  padding: 6px 12px;
  font-size: 12px;
  font-family: var(--font-body);
  color: var(--c-green-hi);
  background: transparent;
  border: 1px solid var(--c-grid);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color 0.24s var(--ease), color 0.24s var(--ease),
    background 0.24s var(--ease);
}

.page-home .home-desk__contact .copy-btn:hover,
.page-home .home-desk__contact .copy-btn:focus-visible {
  border-color: var(--c-green-hi);
  color: var(--c-night);
  background: var(--c-green-hi);
}

.page-home .home-desk__contact .copy-btn.is-done {
  border-color: var(--c-green);
  color: var(--c-night);
  background: var(--c-green);
}

.page-home .home-desk__contact .copy-status {
  grid-column: 2;
  grid-row: 3;
  font-size: 11.5px;
  color: var(--c-green-hi);
  min-height: 1em;
}

.page-home .home-desk__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.page-home .home-desk__contact .contact-list__note {
  margin: 16px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--c-mist);
}

/* ---------- 焦点样式 ---------- */

.page-home a:focus-visible,
.page-home button:focus-visible,
.page-home summary:focus-visible {
  outline: 2px solid var(--c-green-hi);
  outline-offset: 3px;
}

/* ---------- 显现动效（渐进增强） ---------- */

.js .page-home [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
}

.page-home [data-reveal] {
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

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

.page-home [data-stagger] > [data-reveal]:nth-child(1) { transition-delay: 0ms; }
.page-home [data-stagger] > [data-reveal]:nth-child(2) { transition-delay: 70ms; }
.page-home [data-stagger] > [data-reveal]:nth-child(3) { transition-delay: 140ms; }
.page-home [data-stagger] > [data-reveal]:nth-child(4) { transition-delay: 210ms; }
.page-home [data-stagger] > [data-reveal]:nth-child(5) { transition-delay: 280ms; }
.page-home [data-stagger] > [data-reveal]:nth-child(6) { transition-delay: 350ms; }
.page-home [data-stagger] > [data-reveal]:nth-child(7) { transition-delay: 420ms; }
.page-home [data-stagger] > [data-reveal]:nth-child(8) { transition-delay: 490ms; }

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-home .home-seasons__layout {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }

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

  .page-home .home-desk__step {
    grid-template-columns: 110px minmax(0, 1fr);
    align-items: baseline;
    gap: 4px 18px;
  }

  .page-home .home-track__body {
    padding-left: 68px;
  }
}

@media (min-width: 960px) {
  .page-home .home-hero__layout {
    grid-template-columns: minmax(0, 7fr) minmax(0, 3fr);
  }

  .page-home .home-cross__layout {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-home .home-desk__layout {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-home .home-tracks {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }
}

@media (max-width: 719px) {
  .page-home .home-levels__go {
    margin-left: 0;
    flex-basis: 100%;
  }

  .page-home .home-track__body {
    padding-left: 18px;
  }

  .page-home .home-cross__media img {
    aspect-ratio: 16 / 9;
  }
}

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

  .page-home [data-stagger] > [data-reveal] {
    transition-delay: 0ms;
  }

  .page-home .home-index__item,
  .page-home .home-levels__row,
  .page-home .home-track,
  .page-home .home-combo {
    transition: none;
  }
}
</main>