.page-home {
  --home-gap: 20px;
  --home-rule: rgba(36, 54, 90, .62);
  display: block;
  background: var(--arena-900);
  color: var(--ink);
}

.page-home .section {
  padding: 56px 0;
}

.page-home .section-alt {
  background: var(--arena-800);
}

.page-home .section-head {
  max-width: 62ch;
  margin-bottom: 36px;
}

.page-home .section-title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(26px, 4.4vw, 42px);
  line-height: 1.08;
  letter-spacing: -.005em;
  margin: 12px 0 0;
  color: var(--ink);
}

.page-home .section-lede {
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-muted);
  max-width: 60ch;
}

.page-home .eyebrow {
  margin: 0;
  font-family: var(--font-head);
  font-size: 13px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--cyan);
}

/* ---------- 封面 ---------- */
.page-home .hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: 52px 0 56px;
  background:
    radial-gradient(140% 92% at 84% 0%, rgba(43, 227, 242, .16), transparent 56%),
    radial-gradient(110% 84% at 6% 104%, rgba(255, 122, 47, .11), transparent 62%),
    var(--arena-900);
}

.page-home .hero-bg {
  position: absolute;
  top: 0;
  right: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .18;
  filter: saturate(.72) contrast(1.16);
  pointer-events: none;
  z-index: -2;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, .95) 0%, transparent 86%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .95) 0%, transparent 86%);
}

.page-home .hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(36, 54, 90, .65) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(36, 54, 90, .65) 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: .16;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 70%);
  mask-image: linear-gradient(180deg, #000 0%, transparent 70%);
}

.page-home .hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}

.page-home .hero-copy h1 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(36px, 9.4vw, 82px);
  line-height: .96;
  letter-spacing: -.012em;
  margin: 14px 0 0;
  color: var(--ink);
  text-wrap: balance;
}

.page-home .hero-lede {
  margin: 20px 0 0;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-muted);
}

/* 倒计时 */
.page-home .kickoff {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-top: 32px;
}

.page-home .kickoff-ring {
  position: relative;
  width: 104px;
  height: 104px;
  flex: 0 0 auto;
}

.page-home .kickoff-ring svg {
  width: 100%;
  height: 100%;
  display: block;
  transform: rotate(-90deg);
}

.page-home .ring-base {
  fill: none;
  stroke: rgba(36, 54, 90, .95);
  stroke-width: 3;
}

.page-home .ring-prog {
  fill: none;
  stroke: var(--green);
  stroke-width: 3;
  stroke-linecap: round;
  stroke-dasharray: 276.46;
  stroke-dashoffset: 104;
  filter: drop-shadow(0 0 7px rgba(77, 240, 138, .45));
}

.page-home .kickoff-ring::after {
  content: "";
  position: absolute;
  inset: -5px;
  border-radius: 50%;
  border: 1px solid rgba(77, 240, 138, .2);
  animation: page-home-pulse 1.8s ease-out infinite;
  pointer-events: none;
}

@keyframes page-home-pulse {
  0%   { transform: scale(.94); opacity: .9; }
  70%  { transform: scale(1.08); opacity: 0; }
  100% { transform: scale(1.08); opacity: 0; }
}

.page-home .kickoff-clock {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-data);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: .01em;
  font-variant-numeric: tabular-nums;
  color: var(--green);
}

.page-home .kickoff-key {
  margin: 0;
  font-family: var(--font-head);
  font-size: 21px;
  letter-spacing: .03em;
  color: var(--ink);
}

.page-home .kickoff-meta {
  margin: 7px 0 0;
  font-size: 13px;
  line-height: 1.6;
  letter-spacing: .02em;
  color: var(--ink-muted);
}

/* 首屏焦点索引 */
.page-home .hero-index {
  border-top: 1px solid var(--hairline);
  padding-top: 22px;
}

.page-home .index-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 10px;
}

.page-home .index-eyebrow {
  margin: 0;
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-home .index-count {
  font-family: var(--font-data);
  font-size: 21px;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  color: var(--green);
}

.page-home .index-count em {
  font-family: var(--font-body);
  font-style: normal;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--ink-muted);
}

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

.page-home .index-item + .index-item {
  border-top: 1px solid var(--home-rule);
}

.page-home .index-item a {
  display: block;
  padding: 12px 10px 12px 14px;
  margin-left: -14px;
  border-left: 2px solid transparent;
  text-decoration: none;
  color: inherit;
  transition: border-color var(--dur-fast) var(--ease), background-color var(--dur-fast) var(--ease);
}

.page-home .index-item a:hover,
.page-home .index-item a:focus-visible {
  border-left-color: var(--cyan);
  background: rgba(43, 227, 242, .055);
}

.page-home .index-time {
  display: block;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--cyan);
}

.page-home .index-name {
  display: block;
  margin-top: 5px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.35;
  color: var(--ink);
}

.page-home .index-line {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-muted);
}

.page-home .index-foot {
  margin: 16px 0 0;
  font-size: 12px;
  letter-spacing: .05em;
  line-height: 1.6;
  color: var(--steel);
}

/* ---------- 焦点卡片流 ---------- */
.page-home .focus-rail {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  margin: 0 calc(-1 * var(--gutter));
  padding: 6px var(--gutter) 26px;
  scrollbar-width: thin;
  scrollbar-color: rgba(36, 54, 90, .95) transparent;
  -webkit-overflow-scrolling: touch;
}

.page-home .focus-rail:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 4px;
}

.page-home .focus-card {
  flex: 0 0 272px;
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  background: var(--panel-700);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-hair);
  transition: transform var(--dur-base) var(--ease);
}

.page-home .focus-card:hover {
  transform: translateY(-4px);
}

.page-home .focus-card .media-frame {
  display: block;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--arena-800);
}

.page-home .focus-card .media-frame img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-home .focus-card-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 18px 20px 22px;
}

.page-home .focus-card-body h3 {
  margin: 0;
  font-family: var(--font-head);
  font-size: 23px;
  font-weight: 600;
  line-height: 1.14;
  letter-spacing: .01em;
  color: var(--ink);
}

.page-home .focus-facts {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 20px;
  font-size: 13px;
}

.page-home .focus-facts > div {
  display: flex;
  align-items: baseline;
  gap: 7px;
}

.page-home .focus-facts dt {
  color: var(--steel);
  letter-spacing: .04em;
}

.page-home .focus-facts dd {
  margin: 0;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.page-home .focus-link {
  margin-top: auto;
  align-self: flex-start;
  padding-top: 8px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 227, 242, .32);
  transition: border-color var(--dur-fast) var(--ease);
}

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

/* ---------- 三步进赛程 ---------- */
.page-home .steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--hairline);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-home .steps li {
  position: relative;
  background: var(--arena-900);
  padding: 28px 24px 32px;
}

.page-home .steps li::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 2px;
  background: linear-gradient(180deg, var(--cyan), transparent 82%);
  opacity: .55;
}

.page-home .step-num {
  display: block;
  font-family: var(--font-data);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .12em;
  color: var(--orange);
}

.page-home .steps h3 {
  margin: 14px 0 0;
  font-family: var(--font-head);
  font-size: 27px;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--ink);
}

.page-home .steps p {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ink-muted);
}

.page-home .steps-foot {
  margin: 28px 0 0;
}

/* ---------- 数据面板 ---------- */
.page-home .data-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.page-home .data-copy p {
  margin: 16px 0 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-muted);
}

.page-home .data-copy .btn {
  margin-top: 26px;
}

.page-home .data-figure {
  position: relative;
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--panel-700);
}

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

.page-home .data-figure::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(155deg, rgba(43, 227, 242, .16), transparent 54%),
    linear-gradient(0deg, rgba(6, 11, 24, .55), transparent 46%);
}

.page-home .home-switch {
  margin-top: 44px;
}

.page-home .home-switch .seg-button {
  white-space: nowrap;
}

.page-home .home-switch .seg-panel {
  padding-top: 26px;
}

.page-home .field-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.page-home .field-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 18px 0;
  border-top: 1px solid var(--home-rule);
}

.page-home .field-row:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-home .field-key {
  font-family: var(--font-head);
  font-size: 19px;
  font-weight: 600;
  letter-spacing: .05em;
  color: var(--cyan);
}

.page-home .field-val {
  font-size: 15px;
  line-height: 1.78;
  color: var(--ink-muted);
}

.page-home .trust-line {
  margin: 40px 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--hairline);
  max-width: 74ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-muted);
}

/* ---------- 资源与公告 ---------- */
.page-home .res-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.page-home .res-figure {
  position: relative;
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--panel-700);
}

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

.page-home .res-figure::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(200deg, rgba(255, 122, 47, .14), transparent 56%);
}

.page-home .res-copy p {
  margin: 16px 0 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-muted);
}

.page-home .res-copy .btn {
  margin-top: 26px;
}

/* ---------- 找我们 ---------- */
.page-home .contact-strip {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.page-home .contact-copy p {
  margin: 16px 0 0;
  max-width: 54ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-muted);
}

.page-home .contact-copy .btn {
  margin-top: 26px;
}

.page-home .contact-facts {
  margin: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--hairline);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-home .contact-facts > div {
  background: var(--arena-800);
  padding: 18px 20px;
}

.page-home .contact-facts dt {
  font-family: var(--font-head);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--steel);
}

.page-home .contact-facts dd {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink);
  word-break: break-word;
}

.page-home .contact-facts .mono {
  font-family: var(--font-data);
  font-size: 14px;
  font-variant-numeric: tabular-nums;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-home .section {
    padding: 72px 0;
  }

  .page-home .focus-rail {
    gap: 20px;
  }

  .page-home .focus-card {
    flex-basis: 304px;
  }

  .page-home .field-row {
    grid-template-columns: 132px 1fr;
    gap: 8px 24px;
    align-items: baseline;
  }

  .page-home .contact-facts {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-home .contact-facts > div:last-child {
    grid-column: 1 / -1;
  }
}

@media (min-width: 900px) {
  .page-home .section {
    padding: 88px 0;
  }

  .page-home .hero {
    padding: 76px 0 84px;
  }

  .page-home .hero-bg {
    width: 66%;
    opacity: .3;
    -webkit-mask-image: linear-gradient(90deg, transparent 0%, rgba(0, 0, 0, .92) 42%, #000 100%);
    mask-image: linear-gradient(90deg, transparent 0%, rgba(0, 0, 0, .92) 42%, #000 100%);
  }

  .page-home .hero-grid {
    grid-template-columns: 7fr 5fr;
    gap: 56px;
    align-items: center;
  }

  .page-home .hero-index {
    border-top: 0;
    border-left: 1px solid var(--hairline);
    padding: 6px 0 6px 34px;
    align-self: stretch;
  }

  .page-home .section-head {
    margin-bottom: 44px;
  }

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

  .page-home .data-grid {
    grid-template-columns: 7fr 5fr;
    gap: 56px;
    align-items: center;
  }

  .page-home .res-grid {
    grid-template-columns: 5fr 7fr;
    gap: 56px;
    align-items: center;
  }

  .page-home .contact-strip {
    grid-template-columns: 7fr 5fr;
    gap: 56px;
    align-items: start;
  }

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

  .page-home .contact-facts > div:last-child {
    grid-column: auto;
  }
}

@media (min-width: 1180px) {
  .page-home .focus-card {
    flex-basis: 344px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .kickoff-ring::after,
  .page-home .pulse-dot {
    animation: none;
  }

  .page-home .focus-card {
    transition: none;
  }
}