.page-home {
  --hm-pad: clamp(52px, 8vw, 104px);
  --hm-line: 1px solid var(--ink-600);
  --hm-line-paper: 1px solid rgba(6, 10, 20, 0.14);
  overflow-x: clip;
}

/* ============ 通用小件 ============ */
.page-home .hm-crumbs {
  margin: 0 0 4px;
}

.page-home .hm-head {
  display: grid;
  gap: 14px;
  max-width: 66ch;
}

.page-home .hm-head__title {
  max-width: 24ch;
}

.page-home .hm-head__lede {
  margin: 0;
  max-width: 52ch;
  color: var(--slate-300);
  font-size: 1.02rem;
  line-height: 1.8;
}

.page-home .hm-link {
  color: var(--cyan-400);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

.page-home .figure__frame {
  position: relative;
  overflow: hidden;
}

.page-home .figure__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ============ 首屏：坐标总览 ============ */
.page-home .hm-lead {
  position: relative;
  isolation: isolate;
  padding-top: calc(var(--header-h) + clamp(22px, 5vw, 56px));
  padding-bottom: var(--hm-pad);
  overflow: hidden;
  background:
    radial-gradient(110% 80% at 88% 4%, rgba(59, 227, 220, 0.12), transparent 58%),
    radial-gradient(90% 70% at 6% 96%, rgba(255, 138, 61, 0.1), transparent 62%),
    var(--ink-950);
}

.page-home .hm-lead::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(26, 39, 64, 0.9) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(26, 39, 64, 0.9) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, rgba(0, 0, 0, 0.35) 62%, transparent 100%);
  mask-image: linear-gradient(180deg, #000 0%, rgba(0, 0, 0, 0.35) 62%, transparent 100%);
}

.page-home .hm-lead__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(30px, 4.5vw, 54px);
}

.page-home .hm-lead__side {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-home .hm-lead__title {
  margin: 0;
  color: var(--paper-100);
  font-size: clamp(2.05rem, 5.4vw, 3.5rem);
  line-height: 1.06;
  letter-spacing: -0.02em;
}

.page-home .hm-lead__lede {
  margin: 0;
  max-width: 42ch;
  color: var(--slate-300);
  line-height: 1.85;
}

.page-home .hm-lead__figure {
  margin-top: clamp(6px, 1.5vw, 16px);
}

.page-home .hm-lead__figure .figure__frame {
  aspect-ratio: 4 / 5;
}

.page-home .hm-lead__vnote {
  justify-self: start;
  margin: 0;
  writing-mode: vertical-rl;
  font-size: 12px;
  letter-spacing: 0.3em;
  color: var(--cyan-400);
}

.page-home .hm-lead__col {
  display: grid;
  gap: 0;
  align-content: start;
}

.page-home .hm-lead__index {
  display: grid;
  gap: 1px;
  background: var(--ink-600);
  border: var(--hm-line);
}

.page-home .hm-lamp {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 8px 18px;
  padding: clamp(20px, 2.6vw, 30px) clamp(18px, 2.4vw, 28px);
  background: var(--ink-950);
  color: var(--paper-100);
  text-decoration: none;
  transition: background 0.28s var(--ease);
}

.page-home .hm-lamp::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: var(--cyan-400);
  transform: scaleY(0);
  transform-origin: 50% 0;
  transition: transform 0.3s var(--ease);
}

.page-home .hm-lamp:hover,
.page-home .hm-lamp:focus-visible {
  background: var(--ink-800);
}

.page-home .hm-lamp:hover::before,
.page-home .hm-lamp:focus-visible::before {
  transform: scaleY(1);
}

.page-home .hm-lamp--orange::before {
  background: var(--orange-500);
}

.page-home .hm-lamp--lime::before {
  background: var(--lime-400);
}

.page-home .hm-lamp__idx {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 3.2vw, 2.2rem);
  font-weight: 700;
  line-height: 1;
  color: var(--cyan-400);
}

.page-home .hm-lamp--orange .hm-lamp__idx {
  color: var(--orange-500);
}

.page-home .hm-lamp--lime .hm-lamp__idx {
  color: var(--lime-400);
}

.page-home .hm-lamp__body {
  display: grid;
  gap: 6px;
}

.page-home .hm-lamp__title {
  font-size: clamp(1.15rem, 2.2vw, 1.5rem);
  font-weight: 900;
  letter-spacing: -0.01em;
}

.page-home .hm-lamp__desc {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--slate-300);
}

.page-home .hm-lamp__arrow {
  font-size: 1.1rem;
  color: var(--slate-300);
  transition: transform 0.28s var(--ease), color 0.28s var(--ease);
}

.page-home .hm-lamp:hover .hm-lamp__arrow,
.page-home .hm-lamp:focus-visible .hm-lamp__arrow {
  transform: translateX(4px);
  color: var(--orange-500);
}

.page-home .hm-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  margin-top: clamp(18px, 2.6vw, 26px);
  padding-top: 16px;
  border-top: 1px dashed var(--ink-600);
}

.page-home .hm-jump__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.84rem;
  letter-spacing: 0.02em;
  color: var(--slate-300);
  text-decoration: none;
  transition: color 0.24s var(--ease);
}

.page-home .hm-jump__dot {
  width: 6px;
  height: 6px;
  background: var(--cyan-400);
  box-shadow: 0 0 8px rgba(59, 227, 220, 0.8);
}

.page-home .hm-jump__item:hover,
.page-home .hm-jump__item:focus-visible {
  color: var(--paper-100);
}

/* ============ 活动中心变化 ============ */
.page-home .hm-activity__grid {
  display: grid;
  gap: 1px;
  margin-top: clamp(28px, 4vw, 48px);
  background: var(--ink-600);
  border: var(--hm-line);
}

.page-home .hm-board {
  display: grid;
  gap: 14px;
  align-content: start;
  padding: clamp(22px, 2.8vw, 34px);
  background: var(--ink-950);
  border: 0;
}

.page-home .hm-board__head {
  display: grid;
  gap: 8px;
}

.page-home .hm-board__title {
  margin: 0;
  font-size: clamp(1.2rem, 2.4vw, 1.55rem);
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--paper-100);
}

.page-home .hm-board__meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  color: var(--orange-500);
}

.page-home .hm-board__body {
  display: grid;
  gap: 10px;
}

.page-home .hm-board__body p {
  margin: 0;
  color: var(--slate-300);
  font-size: 0.95rem;
  line-height: 1.8;
}

.page-home .hm-activity__foot {
  margin: clamp(24px, 3.4vw, 38px) 0 0;
}

/* ============ 下载刻度 ============ */
.page-home .hm-dl {
  background: var(--paper-100);
  color: var(--ink-950);
}

.page-home .hm-kicker--paper {
  color: var(--cyan-700);
}

.page-home .hm-dl__inner {
  display: grid;
  gap: clamp(30px, 4vw, 54px);
  align-items: start;
}

.page-home .hm-dl__title {
  margin: 0;
  color: var(--ink-950);
}

.page-home .hm-dl__lede {
  margin: 16px 0 0;
  max-width: 48ch;
  color: var(--slate-600);
  line-height: 1.85;
}

.page-home .hm-scale {
  list-style: none;
  margin: clamp(24px, 3.2vw, 36px) 0 0;
  padding: 0;
  border-top: var(--hm-line-paper);
}

.page-home .hm-scale__row {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 6px 16px;
  padding: 16px 2px;
  border-bottom: var(--hm-line-paper);
}

.page-home .hm-scale__num {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  color: var(--cyan-700);
}

.page-home .hm-scale__name {
  font-size: 1.05rem;
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--ink-950);
}

.page-home .hm-scale__note {
  grid-column: 2;
  font-size: 0.88rem;
  line-height: 1.65;
  color: var(--slate-600);
}

.page-home .hm-dl__stat {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin: clamp(22px, 3vw, 32px) 0 0;
}

.page-home .hm-dl__statNum {
  font-family: var(--font-mono);
  font-size: clamp(2rem, 4.6vw, 3.2rem);
  font-weight: 700;
  line-height: 1;
  color: var(--cyan-700);
}

.page-home .hm-dl__statText {
  max-width: 40ch;
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--slate-600);
}

.page-home .hm-dl__cta {
  margin: clamp(22px, 3vw, 32px) 0 0;
}

.page-home .hm-dl__figure .figure__frame {
  aspect-ratio: 9 / 7;
  border: var(--hm-line-paper);
}

.page-home .hm-dl__figure .figure__cap {
  color: var(--slate-600);
}

/* ============ 换设备登录 ============ */
.page-home .hm-steps {
  list-style: none;
  display: grid;
  gap: 1px;
  margin: clamp(28px, 4vw, 46px) 0 0;
  padding: 0;
  background: var(--ink-600);
  border: var(--hm-line);
}

.page-home .hm-step {
  display: grid;
  gap: 10px;
  align-content: start;
  padding: clamp(22px, 2.8vw, 34px);
  background: var(--ink-950);
}

.page-home .hm-step__num {
  font-family: var(--font-mono);
  font-size: clamp(2.2rem, 5.4vw, 3.4rem);
  font-weight: 700;
  line-height: 1;
  color: var(--cyan-400);
}

.page-home .hm-step:nth-child(2) .hm-step__num {
  color: var(--orange-500);
}

.page-home .hm-step:nth-child(3) .hm-step__num {
  color: var(--lime-400);
}

.page-home .hm-step__title {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 900;
  color: var(--paper-100);
}

.page-home .hm-step__text {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--slate-300);
}

.page-home .hm-login__foot {
  margin: clamp(20px, 3vw, 30px) 0 0;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--slate-300);
}

/* ============ 使用指南与客服 ============ */
.page-home .hm-help__inner {
  display: grid;
  gap: clamp(30px, 4vw, 56px);
  align-items: start;
}

.page-home .hm-help__guide {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-home .hm-help__title {
  margin: 0;
}

.page-home .hm-help__lede {
  margin: 0;
  max-width: 48ch;
  color: var(--slate-300);
  line-height: 1.85;
}

.page-home .hm-help__list {
  margin: 6px 0 0;
}

.page-home .hm-help__figure {
  margin-top: 8px;
}

.page-home .hm-help__figure .figure__frame {
  aspect-ratio: 4 / 3;
  border: var(--hm-line);
}

.page-home .hm-help__cta {
  margin: 4px 0 0;
}

.page-home .hm-help__contact {
  display: grid;
  gap: 18px;
  align-content: start;
  padding: clamp(22px, 3vw, 32px);
  background: var(--ink-950);
  border: var(--hm-line);
}

.page-home .hm-help__contactTitle {
  margin: 0;
  font-size: 1.08rem;
  font-weight: 900;
  color: var(--paper-100);
}

.page-home .hm-contact {
  display: grid;
  gap: 0;
  margin: 0;
}

.page-home .hm-contact__row {
  display: grid;
  gap: 6px;
  padding: 14px 0;
  border-top: 1px dashed var(--ink-600);
}

.page-home .hm-contact__row:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-home .hm-contact__key {
  font-size: 0.74rem;
  letter-spacing: 0.18em;
  color: var(--slate-300);
}

.page-home .hm-contact__val {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--cyan-400);
  word-break: break-word;
}

.page-home .hm-help__note {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.75;
  color: var(--slate-300);
}

/* ============ 巷标横向条 ============ */
.page-home .hm-lanes__head {
  margin-bottom: clamp(24px, 3.2vw, 36px);
}

.page-home .hm-lanes__title {
  margin: 12px 0 0;
}

.page-home .hm-lanes__rail {
  overflow-x: auto;
  overflow-y: hidden;
  overscroll-behavior-x: contain;
  scroll-snap-type: x proximity;
  scrollbar-width: thin;
  scrollbar-color: var(--ink-600) transparent;
  padding-inline: var(--gutter);
  -webkit-overflow-scrolling: touch;
}

.page-home .hm-lanes__rail:focus-visible {
  outline: 1px solid var(--cyan-400);
  outline-offset: -1px;
}

.page-home .hm-lanes__track {
  display: flex;
  gap: 14px;
  width: max-content;
  padding: 4px 0 18px;
}

.page-home .hm-lane {
  flex: 0 0 auto;
  scroll-snap-align: start;
  width: min(74vw, 286px);
  display: grid;
  gap: 10px;
  align-content: start;
  padding: 20px 18px 22px;
  background: var(--ink-800);
  border: var(--hm-line);
  border-top-width: 3px;
  color: var(--paper-100);
  text-decoration: none;
  transition: transform 0.3s var(--ease), background 0.3s var(--ease);
}

.page-home .hm-lane--cyan {
  border-top-color: var(--cyan-400);
}

.page-home .hm-lane--orange {
  border-top-color: var(--orange-500);
}

.page-home .hm-lane--red {
  border-top-color: var(--red-500);
}

.page-home .hm-lane--lime {
  border-top-color: var(--lime-400);
}

.page-home .hm-lane:hover,
.page-home .hm-lane:focus-visible {
  transform: translateY(-4px);
  background: var(--ink-950);
}

.page-home .hm-lane__tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: var(--slate-300);
}

.page-home .hm-lane__title {
  font-size: 1.16rem;
  font-weight: 900;
  letter-spacing: -0.01em;
}

.page-home .hm-lane__text {
  font-size: 0.86rem;
  line-height: 1.72;
  color: var(--slate-300);
}

.page-home .hm-lanes__ruler {
  height: 9px;
  margin: 0 var(--gutter);
  border-top: 1px solid var(--ink-600);
  background-image: repeating-linear-gradient(to right, var(--ink-600) 0 1px, transparent 1px 16px);
}

.page-home .hm-lanes__foot {
  display: grid;
  gap: 18px;
  margin-top: clamp(28px, 4vw, 46px);
}

.page-home .hm-lanes__figure .figure__frame {
  aspect-ratio: 16 / 9;
  border: var(--hm-line);
}

.page-home .hm-back {
  justify-self: start;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 0;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  color: var(--cyan-400);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-400);
}

/* ============ 滚动显现 ============ */
.js .page-home [data-reveal],
.js .page-home [data-reveal-group] > * {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.42s var(--ease), transform 0.42s var(--ease);
}

.js .page-home [data-reveal].is-inview,
.js .page-home [data-reveal-group].is-inview > * {
  opacity: 1;
  transform: none;
}

.js .page-home [data-reveal-group].is-inview > *:nth-child(1) {
  transition-delay: 0ms;
}

.js .page-home [data-reveal-group].is-inview > *:nth-child(2) {
  transition-delay: 60ms;
}

.js .page-home [data-reveal-group].is-inview > *:nth-child(3) {
  transition-delay: 120ms;
}

.js .page-home [data-reveal-group].is-inview > *:nth-child(4) {
  transition-delay: 180ms;
}

.js .page-home [data-reveal-group].is-inview > *:nth-child(5) {
  transition-delay: 240ms;
}

.js .page-home [data-reveal-group].is-inview > *:nth-child(6) {
  transition-delay: 300ms;
}

/* ============ 断点 ============ */
@media (max-width: 1080px) {
  .page-home .hm-lead {
    padding-top: calc(var(--header-h-sm) + clamp(20px, 6vw, 44px));
  }
}

@media (max-width: 520px) {
  .page-home .hm-lamp {
    grid-template-columns: auto 1fr;
  }

  .page-home .hm-lamp__arrow {
    display: none;
  }
}

@media (min-width: 560px) {
  .page-home .hm-scale__row {
    grid-template-columns: auto auto 1fr;
    align-items: baseline;
  }

  .page-home .hm-scale__note {
    grid-column: auto;
  }
}

@media (min-width: 820px) {
  .page-home .hm-activity__grid {
    grid-template-columns: 1fr 1fr;
  }

  .page-home .hm-board--offset {
    margin-top: 30px;
  }
}

@media (min-width: 860px) {
  .page-home .hm-steps {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 900px) {
  .page-home .hm-dl__inner {
    grid-template-columns: 62fr 38fr;
  }

  .page-home .hm-dl__figure {
    margin-top: clamp(14px, 3vw, 40px);
  }
}

@media (min-width: 940px) {
  .page-home .hm-help__inner {
    grid-template-columns: 58fr 42fr;
  }
}

@media (min-width: 980px) {
  .page-home .hm-lead__inner {
    grid-template-columns: 38fr 62fr;
    gap: clamp(32px, 3.5vw, 56px);
  }

  .page-home .hm-lead__side {
    border-left: var(--hm-line);
    padding-left: clamp(18px, 2vw, 30px);
  }
}

/* ============ 减少动态 ============ */
@media (prefers-reduced-motion: reduce) {
  .js .page-home [data-reveal],
  .js .page-home [data-reveal-group] > * {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .page-home .hm-lane:hover,
  .page-home .hm-lane:focus-visible {
    transform: none;
  }

  .page-home .hm-lamp:hover .hm-lamp__arrow,
  .page-home .hm-lamp:focus-visible .hm-lamp__arrow {
    transform: none;
  }
}
<<<END>>>