.page-home {
  --home-pad: clamp(16px, 4vw, 56px);
  --home-gap: clamp(24px, 4vw, 48px);
  --home-max: 1240px;
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-home .home-crumb {
  max-width: var(--home-max);
  margin: 0 auto;
  padding: 18px var(--home-pad) 4px;
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}
.page-home .home-crumb a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}
.page-home .home-crumb a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}
.page-home .home-crumb [aria-current="page"] { color: var(--white); }

/* ===== 首屏巨型标题板 ===== */
.page-home .hero-board {
  padding: var(--home-gap) var(--home-pad) 0;
}
.page-home .hero-board__shell {
  position: relative;
  max-width: var(--home-max);
  margin: 0 auto;
  padding: clamp(28px, 5vw, 64px) clamp(20px, 4vw, 60px) clamp(32px, 5vw, 64px);
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  overflow: hidden;
  isolation: isolate;
}
.page-home .hero-board__shell::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--grad);
  z-index: 2;
}
.page-home .hero-board__shell::after {
  content: "";
  position: absolute;
  inset: auto -14px -14px auto;
  width: 62%;
  height: 62%;
  background: var(--ink);
  border: 1px solid var(--line);
  z-index: -1;
}

.page-home .hero-board__glow {
  position: absolute;
  top: -28%;
  right: -18%;
  width: min(760px, 88%);
  aspect-ratio: 1;
  background:
    radial-gradient(circle at 52% 46%, rgba(122, 60, 255, .58), transparent 62%),
    radial-gradient(circle at 32% 72%, rgba(37, 225, 214, .42), transparent 66%);
  filter: blur(48px);
  pointer-events: none;
  z-index: -1;
}
.page-home .hero-board__scan {
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    to bottom,
    rgba(241, 236, 255, .045) 0 1px,
    transparent 1px 4px
  );
  pointer-events: none;
  z-index: -1;
}

.page-home .hero-board__inner {
  display: grid;
  gap: clamp(28px, 4vw, 48px);
}
.page-home .hero-board__copy { min-width: 0; }

.page-home .hero-board__eyebrow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 clamp(16px, 2.5vw, 28px);
  font-size: 13px;
  letter-spacing: .08em;
}

.page-home .hero-board__title {
  margin: 0 0 clamp(18px, 3vw, 28px);
  font-family: var(--font-title);
  font-weight: 900;
  letter-spacing: -.035em;
  line-height: .9;
  color: var(--white);
  font-size: clamp(46px, 13vw, 112px);
}
.page-home .hero-board__title-top,
.page-home .hero-board__title-mid {
  display: block;
}
.page-home .hero-board__title-top {
  font-size: .52em;
  letter-spacing: .01em;
  color: var(--muted);
  margin-bottom: .08em;
}
.page-home .hero-board__title-mid {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-home .hero-board__lead {
  max-width: 34em;
  margin: 0 0 clamp(20px, 3vw, 32px);
  font-size: 17px;
  line-height: 1.75;
  color: var(--white);
}

/* 三步安装 */
.page-home .hero-steps {
  display: grid;
  gap: 12px;
  margin: 0 0 clamp(24px, 3.5vw, 36px);
  padding: 0;
  list-style: none;
  counter-reset: hero-step;
}
.page-home .hero-step {
  position: relative;
  display: grid;
  grid-template-columns: 44px 1fr;
  grid-template-rows: auto auto;
  column-gap: 14px;
  padding: 14px 16px 14px 12px;
  background: rgba(10, 6, 20, .55);
  border: 1px solid var(--line);
  border-left: 3px solid var(--line);
  transition: border-color 200ms var(--ease), transform 200ms var(--ease), background 200ms var(--ease);
}
.page-home .hero-step:hover,
.page-home .hero-step:focus-visible {
  border-color: var(--cyan);
  border-left-color: var(--cyan);
  background: rgba(22, 12, 43, .95);
  transform: translateX(4px);
  outline: none;
}
.page-home .hero-step .steps__node {
  grid-row: 1 / span 2;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--ink);
  background: var(--neon);
  border: 1px solid var(--line);
}
.page-home .hero-step .steps__title {
  margin: 2px 0 2px;
  font-family: var(--font-title);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--white);
}
.page-home .hero-step .steps__desc {
  grid-column: 2;
  margin: 0;
  font-size: 15px;
  line-height: 1.65;
  color: var(--muted);
}

.page-home .hero-board__cta {
  display: grid;
  gap: 10px;
  max-width: 420px;
}
.page-home .hero-cta {
  font-size: 17px;
  letter-spacing: .04em;
  padding: 16px 24px;
}
.page-home .hero-board__note {
  margin: 0;
  font-size: 12px;
  letter-spacing: .04em;
}

.page-home .hero-board__visual {
  margin: 0;
  position: relative;
}
.page-home .hero-board__visual img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border: 1px solid var(--line);
}
.page-home .hero-board__visual figcaption {
  margin-top: 10px;
  font-size: 12px;
  letter-spacing: .06em;
}

/* ===== 安装示意条 ===== */
.page-home .install-strip {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  max-width: var(--home-max);
  margin: clamp(28px, 5vw, 56px) auto 0;
  padding: 0 var(--home-pad);
}
.page-home .install-strip__media {
  position: relative;
}
.page-home .install-strip__media::after {
  content: "";
  position: absolute;
  inset: 12px -12px -12px 12px;
  border: 1px solid var(--line);
  z-index: -1;
}
.page-home .install-strip__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border: 1px solid var(--line);
  filter: saturate(.9) contrast(1.05);
}
.page-home .install-strip__copy {
  align-self: center;
}
.page-home .install-strip__kicker {
  margin: 0 0 12px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .14em;
  color: var(--neon);
}
.page-home .install-strip__text {
  margin: 0 0 18px;
  font-size: 17px;
  line-height: 1.75;
  color: var(--white);
  max-width: 32em;
}
.page-home .install-strip__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

/* ===== 当季名单带 ===== */
.page-home .season-band {
  margin-top: clamp(48px, 8vw, 104px);
  padding: clamp(36px, 6vw, 72px) 0 clamp(36px, 6vw, 64px);
  background:
    linear-gradient(180deg, var(--teal) 0%, rgba(6, 24, 28, .35) 100%);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.page-home .season-band__head {
  max-width: var(--home-max);
  margin: 0 auto clamp(24px, 4vw, 40px);
  padding: 0 var(--home-pad);
  display: grid;
  gap: clamp(20px, 3vw, 36px);
}
.page-home .season-band__intro { max-width: 46em; }
.page-home .season-band__intro .section__lead {
  margin-bottom: 0;
  color: var(--white);
}
.page-home .season-band__filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-home .season-band__filters .tag { cursor: pointer; }

.page-home .season-band__rail {
  display: flex;
  gap: 18px;
  padding: 6px var(--home-pad) 28px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--violet) transparent;
}
.page-home .season-band__rail::-webkit-scrollbar { height: 6px; }
.page-home .season-band__rail::-webkit-scrollbar-thumb {
  background: var(--violet);
  border-radius: 3px;
}

.page-home .season-card {
  flex: 0 0 min(78vw, 288px);
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  transition: border-color 200ms var(--ease), transform 200ms var(--ease);
}
.page-home .season-card:hover {
  border-color: var(--cyan);
  transform: translateY(-4px);
}
.page-home .season-card__thumb {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background:
    radial-gradient(circle at 28% 26%, rgba(122, 60, 255, .5), transparent 58%),
    radial-gradient(circle at 76% 74%, rgba(37, 225, 214, .38), transparent 62%),
    var(--ink);
  border-bottom: 1px solid var(--line);
}
.page-home .season-card__thumb img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}
.page-home .season-card__pix {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 22% 30%, rgba(122, 60, 255, .55), transparent 55%),
    radial-gradient(circle at 78% 70%, rgba(242, 255, 77, .28), transparent 58%),
    repeating-linear-gradient(45deg, rgba(241, 236, 255, .05) 0 2px, transparent 2px 8px);
}
.page-home .season-card__corner {
  position: absolute;
  top: 10px;
  left: 10px;
  z-index: 2;
  box-shadow: 0 6px 14px rgba(10, 6, 20, .6);
}
.page-home .season-card__body {
  display: grid;
  gap: 8px;
  padding: 16px 16px 18px;
}
.page-home .season-card__cat {
  margin: 0;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--cyan);
}
.page-home .season-card__name {
  margin: 0;
  font-family: var(--font-title);
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--white);
}
.page-home .season-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 4px 0 0;
  padding: 0;
  list-style: none;
}

.page-home .season-band__more {
  max-width: var(--home-max);
  margin: 0 auto;
  padding: 0 var(--home-pad);
  font-size: 15px;
}

/* ===== 三档配置 技能树 ===== */
.page-home .tier-tree {
  padding: clamp(48px, 8vw, 104px) var(--home-pad) 0;
}
.page-home .tier-tree__inner {
  max-width: var(--home-max);
  margin: 0 auto;
}
.page-home .tier-tree__head {
  max-width: 52em;
  margin-bottom: clamp(28px, 4vw, 48px);
}
.page-home .tier-tree__body {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

.page-home .tier-tree__rail {
  display: none;
}

.page-home .tier-tree__nodes {
  display: grid;
  gap: 16px;
  position: relative;
}
.page-home .tier-tree__nodes::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 12px;
  bottom: 12px;
  width: 2px;
  background: linear-gradient(180deg, var(--violet), var(--cyan));
  opacity: .5;
}

.page-home .tier {
  position: relative;
  display: grid;
  gap: 8px;
  padding: 22px 18px 22px 48px;
  background: var(--panel);
  border: 1px solid var(--line);
  transition: border-color 200ms var(--ease), transform 200ms var(--ease), box-shadow 200ms var(--ease);
}
.page-home .tier:hover {
  border-color: var(--cyan);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.page-home .tier::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 30px;
  width: 16px;
  height: 16px;
  background: var(--ink);
  border: 2px solid var(--cyan);
}
.page-home .tier--light::before { border-color: var(--cyan); }
.page-home .tier--main::before { border-color: var(--neon); }
.page-home .tier--high::before { border-color: var(--rose); }

.page-home .tier__idx {
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--muted);
}
.page-home .tier__name {
  margin: 0;
  font-family: var(--font-title);
  font-size: 26px;
  font-weight: 900;
  letter-spacing: -.02em;
  color: var(--white);
}
.page-home .tier--main .tier__name { color: var(--neon); }
.page-home .tier--high .tier__name { color: var(--rose); }

.page-home .tier__spec {
  margin: 0;
  display: inline-block;
  align-self: start;
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--ink);
  background: var(--neon);
  border: 1px solid var(--line);
  padding: 4px 10px;
}
.page-home .tier--main .tier__spec { background: var(--cyan); }
.page-home .tier--high .tier__spec { background: var(--rose); color: var(--white); }

.page-home .tier__desc {
  margin: 4px 0 4px;
  font-size: 16px;
  line-height: 1.7;
  color: var(--muted);
}
.page-home .tier__list {
  margin: 4px 0 8px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}
.page-home .tier__list li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
  color: var(--white);
}
.page-home .tier__list .mono {
  font-size: 13px;
  color: var(--neon);
}

.page-home .tier-tree__visual {
  margin: 0;
}
.page-home .tier-tree__visual img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 14 / 9;
  object-fit: cover;
  border: 1px solid var(--line);
}
.page-home .tier-tree__visual figcaption {
  margin-top: 10px;
  font-size: 12px;
  letter-spacing: .05em;
}

.page-home .tier-tree__hint {
  margin: clamp(24px, 3vw, 36px) 0 0;
  font-size: 16px;
  color: var(--white);
}

/* ===== 双端一份库 ===== */
.page-home .duo {
  margin-top: clamp(48px, 8vw, 104px);
  padding: clamp(36px, 6vw, 72px) var(--home-pad);
  background:
    linear-gradient(135deg, rgba(122, 60, 255, .18) 0%, rgba(37, 225, 214, .12) 100%);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.page-home .duo__inner {
  max-width: var(--home-max);
  margin: 0 auto;
  display: grid;
  gap: clamp(28px, 4vw, 56px);
}
.page-home .duo__copy { max-width: 40em; }
.page-home .duo__copy .section__lead { color: var(--white); }
.page-home .duo__link { margin-top: 8px; }

.page-home .duo__facts {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-home .duo__fact {
  display: grid;
  grid-template-columns: 70px 1fr;
  column-gap: 16px;
  padding: 16px 16px 16px 0;
  border-top: 1px solid var(--line);
  transition: border-color 200ms var(--ease);
}
.page-home .duo__fact:hover { border-top-color: var(--cyan); }
.page-home .duo__fact-num {
  grid-row: 1 / span 2;
  align-self: start;
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--cyan);
  line-height: 1.1;
}
.page-home .duo__fact-title {
  margin: 0 0 4px;
  font-family: var(--font-title);
  font-size: 18px;
  font-weight: 700;
  color: var(--white);
}
.page-home .duo__fact-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--muted);
}

/* ===== 为什么值得每周回来 ===== */
.page-home .why {
  padding: clamp(48px, 8vw, 104px) var(--home-pad) 0;
}
.page-home .why__inner {
  max-width: var(--home-max);
  margin: 0 auto;
}
.page-home .why__head { margin-bottom: clamp(24px, 4vw, 40px); }

.page-home .why__rows {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}
.page-home .why__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: clamp(20px, 3vw, 32px) 0;
  border-bottom: 1px solid var(--line);
  transition: background 200ms var(--ease), padding-left 200ms var(--ease);
}
.page-home .why__row:hover {
  background: rgba(22, 12, 43, .6);
  padding-left: 12px;
}
.page-home .why__idx {
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--rose);
}
.page-home .why__title {
  margin: 0;
  font-family: var(--font-title);
  font-size: clamp(20px, 3vw, 26px);
  font-weight: 800;
  letter-spacing: -.015em;
  color: var(--white);
}
.page-home .why__text {
  margin: 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--muted);
  max-width: 58em;
}

/* ===== 收束 ===== */
.page-home .closing {
  padding: clamp(48px, 8vw, 96px) var(--home-pad) 0;
}
.page-home .closing__inner {
  position: relative;
  max-width: var(--home-max);
  margin: 0 auto;
  padding: clamp(32px, 5vw, 60px) clamp(20px, 4vw, 52px);
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.page-home .closing__inner::before {
  content: "";
  position: absolute;
  inset: auto -20% -60% auto;
  width: 62%;
  aspect-ratio: 1;
  background: radial-gradient(circle at 40% 40%, rgba(122, 60, 255, .45), transparent 65%);
  filter: blur(38px);
  pointer-events: none;
}
.page-home .closing__title {
  position: relative;
  margin: 0 0 14px;
  font-family: var(--font-title);
  font-weight: 900;
  letter-spacing: -.03em;
  line-height: .95;
  color: var(--white);
  font-size: clamp(36px, 8vw, 68px);
}
.page-home .closing__lead {
  position: relative;
  max-width: 40em;
  margin: 0 0 clamp(20px, 3vw, 30px);
  font-size: 17px;
  line-height: 1.75;
  color: var(--white);
}
.page-home .closing__actions {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: clamp(24px, 3.5vw, 36px);
}
.page-home .closing__meta {
  position: relative;
  display: grid;
  gap: 6px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}
.page-home .closing__meta p {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  word-break: break-word;
}

/* ===== 响应式 ===== */
@media (min-width: 720px) {
  .page-home .install-strip {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: center;
  }
  .page-home .why__row {
    grid-template-columns: 88px minmax(0, 1fr) minmax(0, 1.6fr);
    align-items: baseline;
    column-gap: 20px;
  }
  .page-home .why__idx { grid-row: 1; }
  .page-home .why__title { grid-row: 1; }
  .page-home .why__text { grid-row: 1; }
  .page-home .duo__facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 28px;
  }
}

@media (min-width: 960px) {
  .page-home .hero-board__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
    gap: clamp(32px, 4vw, 64px);
  }
  .page-home .hero-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
    border-top: 1px solid var(--line);
    padding-top: 18px;
  }
  .page-home .hero-step {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto;
    row-gap: 6px;
    padding: 0 18px 0 0;
    background: transparent;
    border: 0;
    border-right: 1px solid var(--line);
  }
  .page-home .hero-step:last-child { border-right: 0; padding-right: 0; }
  .page-home .hero-step .steps__node {
    grid-row: auto;
    margin-bottom: 6px;
  }
  .page-home .hero-step .steps__desc { grid-column: auto; }
  .page-home .hero-step:hover,
  .page-home .hero-step:focus-visible {
    background: transparent;
    transform: translateY(-3px);
    border-left-color: transparent;
    border-color: transparent;
  }
  .page-home .hero-step:hover .steps__title { color: var(--cyan); }

  .page-home .season-band__head {
    grid-template-columns: minmax(0, 1fr) minmax(0, auto);
    align-items: end;
    gap: 40px;
  }
  .page-home .season-band__filters {
    justify-content: flex-end;
    max-width: 340px;
  }
  .page-home .season-band__rail {
    padding-left: max(var(--home-pad), calc((100vw - var(--home-max)) / 2 + var(--home-pad)));
    padding-right: max(var(--home-pad), calc((100vw - var(--home-max)) / 2 + var(--home-pad)));
  }
  .page-home .season-card:nth-child(even) { transform: translateY(22px); }
  .page-home .season-card:nth-child(even):hover { transform: translateY(18px); }

  .page-home .tier-tree__body {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.62fr);
    align-items: start;
    gap: clamp(32px, 4vw, 56px);
  }
  .page-home .tier-tree__nodes {
    grid-template-columns: 1fr;
    gap: 18px;
  }
  .page-home .tier-tree__visual { position: sticky; top: 32px; }
  .page-home .tier { padding: 26px 26px 26px 68px; }
  .page-home .tier::before { left: 24px; top: 34px; }
  .page-home .tier-tree__nodes::before { left: 31px; }

  .page-home .duo__inner {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
    gap: clamp(32px, 4vw, 64px);
  }

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

@media (min-width: 1200px) {
  .page-home .hero-board__title {
    font-size: clamp(80px, 7.6vw, 128px);
  }
  .page-home .hero-board__title-top {
    font-size: .46em;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .season-card,
  .page-home .tier,
  .page-home .hero-step,
  .page-home .why__row {
    transition: none;
  }
  .page-home .season-card:hover,
  .page-home .tier:hover,
  .page-home .hero-step:hover {
    transform: none;
  }
}
</main>