@keyframes ph-flip {
  from {
    transform: rotateX(-86deg) translateY(-16%);
    opacity: 0;
  }
  to {
    transform: rotateX(0) translateY(0);
    opacity: 1;
  }
}

.page-home {
  --ph-pad: clamp(20px, 5vw, 56px);
  display: block;
  background: var(--tt-cream);
  color: var(--tt-stone);
}

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

/* ---------- 位置提示 ---------- */

.page-home .ph-crumbs {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 clamp(22px, 4vw, 40px);
}

.page-home .ph-crumbs__now {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--tt-cream);
}

/* ---------- 首屏 ---------- */

.page-home .ph-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 4vw, 48px) 0 clamp(48px, 7vw, 88px);
  background:
    radial-gradient(110% 70% at 88% 4%, rgba(37, 224, 208, .2), transparent 58%),
    radial-gradient(90% 68% at 6% -4%, rgba(242, 180, 65, .16), transparent 60%),
    linear-gradient(168deg, #4B2E83 0%, #1B1330 60%, #120C22 100%);
  color: var(--tt-cream);
}

.page-home .ph-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: .85;
  background-image:
    radial-gradient(1.6px 1.6px at 12% 18%, rgba(246, 241, 231, .9), transparent 100%),
    radial-gradient(1.6px 1.6px at 34% 8%, rgba(37, 224, 208, .85), transparent 100%),
    radial-gradient(1.4px 1.4px at 58% 26%, rgba(246, 241, 231, .7), transparent 100%),
    radial-gradient(1.4px 1.4px at 78% 12%, rgba(242, 180, 65, .8), transparent 100%),
    radial-gradient(1.2px 1.2px at 92% 34%, rgba(246, 241, 231, .6), transparent 100%),
    radial-gradient(1.2px 1.2px at 22% 46%, rgba(37, 224, 208, .55), transparent 100%);
}

.page-home .ph-hero > .tt-shell {
  position: relative;
  z-index: 1;
}

.page-home .ph-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 5vw, 52px);
  align-items: center;
}

.page-home .ph-hero__title {
  margin: 0;
  font-family: var(--tt-font-display);
  font-weight: 900;
  font-size: clamp(34px, 7.4vw, 74px);
  line-height: 1.08;
  color: var(--tt-cream);
  text-shadow: 0 0 20px rgba(37, 224, 208, .4), 0 0 2px rgba(246, 241, 231, .7);
}

.page-home .ph-hero__lead {
  margin: 18px 0 0;
  max-width: 40ch;
  font-size: clamp(16px, 1.4vw, 18px);
  line-height: 1.85;
  color: var(--tt-silver);
}

.page-home .ph-cycle {
  margin-top: clamp(24px, 3vw, 34px);
  padding: 20px 24px 22px;
  border: 1px solid transparent;
  border-radius: 18px 18px 18px 4px;
  background:
    linear-gradient(rgba(20, 13, 38, .72), rgba(20, 13, 38, .72)) padding-box,
    linear-gradient(120deg, rgba(37, 224, 208, .8), rgba(242, 180, 65, .55)) border-box;
}

.page-home .ph-cycle__label {
  margin: 0;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--tt-neon);
}

.page-home .ph-cycle__num {
  margin: 6px 0 0;
  font-family: var(--tt-font-display);
  font-weight: 900;
  font-size: clamp(46px, 8.6vw, 86px);
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: var(--tt-gold);
  text-shadow: 0 0 26px rgba(242, 180, 65, .5);
  transform-origin: 50% 0;
  animation: ph-flip .9s var(--tt-ease) both;
}

.page-home .ph-cycle__note {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--tt-silver);
}

.page-home .ph-hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(24px, 3vw, 32px);
}

.page-home .ph-hero__frame {
  border-radius: 22px 6px 22px 6px;
  overflow: hidden;
}

/* ---------- 栏目索引带 ---------- */

.page-home .ph-railband {
  padding: clamp(44px, 6vw, 78px) 0 clamp(28px, 4vw, 48px);
  background: var(--tt-cream);
  color: var(--tt-stone);
}

.page-home .ph-railband__head {
  display: grid;
  gap: 10px;
  max-width: 660px;
}

.page-home .ph-railband__head h2 {
  margin: 0;
  font-family: var(--tt-font-display);
  font-size: clamp(26px, 4.2vw, 42px);
  line-height: 1.2;
  color: var(--tt-purple);
}

.page-home .ph-railband__sub {
  margin: 0;
  line-height: 1.8;
  color: var(--tt-stone);
}

.page-home .ph-rail {
  display: flex;
  gap: 16px;
  margin: clamp(24px, 3vw, 34px) 0 0;
  padding: 8px var(--ph-pad) 24px;
  list-style: none;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}

.page-home .ph-rail:focus-visible {
  outline: 2px solid var(--tt-neon);
  outline-offset: -2px;
}

.page-home .ph-rail__card {
  flex: 0 0 min(268px, 76vw);
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 22px 20px 22px;
  background: #fff;
  border: 1px solid var(--tt-rule);
  border-radius: 4px 4px 20px 4px;
  box-shadow: 0 18px 34px -28px rgba(27, 19, 48, .7);
  transition: transform .3s var(--tt-ease), box-shadow .3s var(--tt-ease), border-color .3s var(--tt-ease);
}

.page-home .ph-rail__card:hover,
.page-home .ph-rail__card:focus-within {
  transform: translateY(-6px) rotate(-1.4deg);
  border-color: rgba(37, 224, 208, .75);
  box-shadow: 0 0 0 1px rgba(37, 224, 208, .35), 0 24px 42px -28px rgba(27, 19, 48, .8);
}

.page-home .ph-rail__no {
  font-family: var(--tt-font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--tt-clay);
}

.page-home .ph-rail__cat {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .14em;
  color: var(--tt-purple);
}

.page-home .ph-rail__title {
  margin: 2px 0 0;
  font-family: var(--tt-font-display);
  font-size: 20px;
  line-height: 1.4;
  color: var(--tt-stone);
}

.page-home .ph-rail__text {
  margin: 0 0 8px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--tt-stone);
}

.page-home .ph-rail__go {
  margin-top: auto;
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding-bottom: 2px;
  font-size: 14px;
  font-weight: 700;
  color: var(--tt-purple);
  text-decoration: none;
  border-bottom: 2px solid rgba(37, 224, 208, .55);
}

.page-home .ph-rail__go:hover {
  color: var(--tt-clay);
  border-bottom-color: var(--tt-clay);
}

.page-home .ph-rail__go:focus-visible {
  outline: 2px solid var(--tt-neon);
  outline-offset: 3px;
}

/* ---------- 三步上手 ---------- */

.page-home .ph-steps {
  padding: clamp(48px, 7vw, 96px) 0;
  background: linear-gradient(180deg, #1B1330 0%, #2A1B4E 48%, #1B1330 100%);
  color: var(--tt-cream);
}

.page-home .ph-steps__title {
  margin: 10px 0 0;
  font-family: var(--tt-font-display);
  font-size: clamp(28px, 4.4vw, 46px);
  line-height: 1.18;
  color: var(--tt-cream);
  text-shadow: 0 0 18px rgba(37, 224, 208, .32);
}

.page-home .ph-steps__sub {
  margin: 14px 0 0;
  max-width: 48ch;
  line-height: 1.85;
  color: var(--tt-silver);
}

.page-home .ph-steps__list {
  list-style: none;
  margin: clamp(30px, 4vw, 46px) 0 0;
  padding: 0;
  max-width: 840px;
}

.page-home .ph-step {
  position: relative;
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 18px;
  padding-bottom: clamp(28px, 4vw, 46px);
}

.page-home .ph-step::before {
  content: "";
  position: absolute;
  left: 22px;
  top: 50px;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, rgba(37, 224, 208, .6), rgba(242, 180, 65, .12));
}

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

.page-home .ph-step:last-child::before {
  display: none;
}

.page-home .ph-step__mark {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: var(--tt-font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--tt-neon);
  background: rgba(37, 224, 208, .1);
  border: 1px solid rgba(37, 224, 208, .55);
  box-shadow: 0 0 20px -8px rgba(37, 224, 208, .9);
}

.page-home .ph-step__where {
  margin: 5px 0 0;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--tt-gold);
}

.page-home .ph-step__title {
  margin: 8px 0 0;
  font-family: var(--tt-font-display);
  font-size: clamp(20px, 2.6vw, 27px);
  line-height: 1.35;
  color: var(--tt-cream);
}

.page-home .ph-step__text {
  margin: 10px 0 0;
  max-width: 62ch;
  line-height: 1.9;
  color: var(--tt-silver);
}

.page-home .ph-step__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-home .ph-step__meta li {
  padding: 5px 12px;
  font-size: 12px;
  letter-spacing: .1em;
  border-radius: 999px;
  border: 1px dashed rgba(201, 203, 218, .45);
  color: var(--tt-silver);
}

.page-home .ph-step__figure {
  margin: 18px 0 0;
}

/* ---------- 最近更新 ---------- */

.page-home .ph-news {
  padding: clamp(48px, 7vw, 92px) 0;
  background: var(--tt-cream);
  color: var(--tt-stone);
}

.page-home .ph-news__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 48px);
}

.page-home .ph-news__aside h2 {
  margin: 10px 0 0;
  font-family: var(--tt-font-display);
  font-size: clamp(26px, 4.2vw, 42px);
  line-height: 1.2;
  color: var(--tt-purple);
}

.page-home .ph-news__text {
  margin: 14px 0 0;
  max-width: 46ch;
  line-height: 1.85;
}

.page-home .ph-news__figure {
  margin: 20px 0 0;
}

.page-home .ph-news__aside .tt-btn {
  margin-top: 20px;
}

.page-home .ph-news__stream {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  align-content: start;
}

.page-home .ph-note {
  padding: 20px 20px 22px;
  border-radius: 16px 16px 16px 4px;
  background: #fff;
  border: 1px solid var(--tt-rule);
  box-shadow: 0 16px 32px -28px rgba(27, 19, 48, .8);
  transition: transform .3s var(--tt-ease), border-color .3s var(--tt-ease);
}

.page-home .ph-note:hover {
  transform: translateY(-4px) rotate(-1deg);
  border-color: rgba(37, 224, 208, .6);
}

.page-home .ph-note h3 {
  margin: 12px 0 0;
  font-family: var(--tt-font-display);
  font-size: 19px;
  line-height: 1.4;
  color: var(--tt-stone);
}

.page-home .ph-note p {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--tt-stone);
}

/* ---------- 服务与备案 ---------- */

.page-home .ph-trust {
  padding: clamp(48px, 7vw, 92px) 0;
  background:
    radial-gradient(70% 60% at 88% 0%, rgba(37, 224, 208, .16), transparent 62%),
    linear-gradient(160deg, #2A1B4E 0%, #1B1330 68%);
  color: var(--tt-cream);
}

.page-home .ph-trust__title {
  margin: 10px 0 0;
  font-family: var(--tt-font-display);
  font-size: clamp(28px, 4.4vw, 44px);
  line-height: 1.2;
  color: var(--tt-cream);
}

.page-home .ph-trust__sub {
  margin: 14px 0 0;
  max-width: 54ch;
  line-height: 1.85;
  color: var(--tt-silver);
}

.page-home .ph-trust__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin-top: clamp(28px, 4vw, 44px);
}

.page-home .ph-trust__card {
  padding: 22px 22px 24px;
  border-radius: 18px;
  background: rgba(246, 241, 231, .06);
  border: 1px solid var(--tt-rule-dark);
}

.page-home .ph-trust__card h3 {
  margin: 0;
  font-family: var(--tt-font-display);
  font-size: 19px;
  color: var(--tt-cream);
}

.page-home .ph-trust__card p {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--tt-silver);
}

.page-home .ph-trust__dl {
  margin: 14px 0 16px;
}

.page-home .ph-trust__dl dt {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--tt-gold);
}

.page-home .ph-trust__dl dd {
  margin: 4px 0 12px;
  font-family: var(--tt-font-mono);
  font-size: 15px;
  color: var(--tt-cream);
  word-break: break-all;
}

.page-home .ph-trust__icp {
  font-family: var(--tt-font-mono);
  font-size: 16px;
  letter-spacing: .06em;
  color: var(--tt-neon);
}

.page-home .ph-trust__foot {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-home .ph-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  }

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

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

@media (min-width: 980px) {
  .page-home .ph-news__grid {
    grid-template-columns: minmax(0, .84fr) minmax(0, 1.16fr);
  }

  .page-home .ph-trust__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }

  .page-home .ph-trust__card--a {
    grid-column: span 5;
  }

  .page-home .ph-trust__card--b {
    grid-column: span 4;
  }

  .page-home .ph-trust__card--c {
    grid-column: span 3;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .ph-cycle__num {
    animation: none;
  }

  .page-home .ph-rail__card,
  .page-home .ph-note,
  .page-home .ph-rail__card:hover,
  .page-home .ph-rail__card:focus-within,
  .page-home .ph-note:hover {
    transform: none;
    transition: none;
  }
}