.page-home {
  --home-line: rgba(185, 192, 216, .18);
  --home-amber-line: rgba(240, 169, 59, .36);
  --home-paper-shadow: 0 26px 64px rgba(3, 6, 20, .55);
  font-family: var(--font-sans);
  color: var(--body-dark);
}

.page-home .wrap,
.page-home .hero__inner {
  width: min(1240px, 100% - 2rem);
  margin-inline: auto;
}

.page-home .inline-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(63, 224, 208, .45);
  transition: color .3s var(--ease), border-color .3s var(--ease);
}

.page-home .inline-link:hover,
.page-home .inline-link:focus-visible {
  color: var(--amber);
  border-color: rgba(240, 169, 59, .6);
}

.page-home h2 {
  margin: .2rem 0 .85rem;
  font-size: clamp(1.5rem, 4.6vw, 2.5rem);
  font-weight: 900;
  letter-spacing: -.02em;
  line-height: 1.14;
  color: var(--white);
}

.page-home h3 {
  margin: 0 0 .4rem;
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--white);
}

.page-home p {
  margin: 0 0 .85rem;
  line-height: 1.8;
}

/* ---------- 首屏 ---------- */

.page-home .hero {
  position: relative;
  padding-top: calc(var(--header-h, 76px) + 2.5rem);
  padding-bottom: clamp(2rem, 5vw, 3.5rem);
}

.page-home .hero__inner {
  display: grid;
  gap: 2.25rem;
  align-items: center;
}

.page-home .hero__eyebrow {
  margin-bottom: 1rem;
}

.page-home .hero__title {
  margin: 0 0 1.1rem;
  font-size: clamp(2.1rem, 8.4vw, 4.6rem);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -.03em;
  color: var(--white);
}

.page-home .hero__title em {
  display: inline-block;
  font-style: normal;
  background: linear-gradient(100deg, var(--neon) 0%, var(--cyan) 52%, var(--amber) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-home .hero__lede {
  max-width: 34em;
  color: var(--body-dark);
}

.page-home .hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin-top: 1.6rem;
}

.page-home .hero__stamp {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .55rem;
  margin-top: 1.4rem;
  font-size: .875rem;
  color: var(--mist);
}

.page-home .hero__visual {
  position: relative;
  isolation: isolate;
  transition: transform .6s var(--ease);
}

.page-home .hero__visual:hover {
  transform: translate3d(2px, -4px, 0);
}

.page-home .hero__visual::before {
  content: "";
  position: absolute;
  z-index: -1;
  right: -16%;
  bottom: -14%;
  width: 68%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle at 42% 42%, rgba(108, 75, 216, .62), rgba(63, 224, 208, .2) 48%, transparent 72%);
  filter: blur(26px);
  pointer-events: none;
}

.page-home .hero__media {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--home-line);
  border-radius: clamp(76px, 20vw, 190px) clamp(76px, 20vw, 190px) var(--r-lg) var(--r-lg);
  box-shadow: var(--home-paper-shadow);
}

.page-home .hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 6;
  object-fit: cover;
}

.page-home .hero__skyline {
  position: absolute;
  left: -8%;
  bottom: 4%;
  width: 116%;
  height: auto;
  color: var(--ink);
  opacity: .94;
  pointer-events: none;
}

.page-home .hero__skyline-fill {
  fill: currentColor;
}

.page-home .hero__beam {
  animation: homeBeamSweep 9s linear infinite;
}

@keyframes homeBeamSweep {
  0% { transform: translateX(0); }
  100% { transform: translateX(900px); }
}

/* ---------- 章节骨架 ---------- */

.page-home .sec {
  padding-block: clamp(2.75rem, 7vw, 5.25rem);
}

.page-home .sec-head {
  margin-bottom: clamp(1.5rem, 4vw, 2.5rem);
}

.page-home .sec-head .lede {
  max-width: 60ch;
  margin-bottom: 0;
}

.page-home .chapter-mark {
  display: block;
  margin-bottom: .4rem;
  font-size: clamp(56px, 13vw, 132px);
  font-weight: 900;
  line-height: .8;
  letter-spacing: -.05em;
  color: rgba(108, 75, 216, .3);
}

.page-home .media-caption {
  margin-top: .7rem;
  font-size: .8125rem;
  letter-spacing: .04em;
  color: var(--mist);
}

/* ---------- 版本速览 ---------- */

.page-home .version__body {
  display: grid;
  gap: 2rem;
}

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

.page-home .vitem {
  position: relative;
  border-top: 1px solid var(--home-amber-line);
  padding: 1rem 2.2rem 1rem 0;
}

.page-home .vitem:last-child {
  border-bottom: 1px solid var(--home-amber-line);
}

.page-home .vitem > summary {
  position: relative;
  display: grid;
  gap: .3rem;
  cursor: pointer;
  list-style: none;
}

.page-home .vitem > summary::-webkit-details-marker {
  display: none;
}

.page-home .vitem > summary::after {
  content: "＋";
  position: absolute;
  top: .1rem;
  right: -2.2rem;
  font-size: .95rem;
  color: var(--cyan);
  transition: color .3s var(--ease);
}

.page-home .vitem[open] > summary::after {
  content: "－";
  color: var(--amber);
}

.page-home .vitem__k {
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .2em;
  color: var(--amber);
}

.page-home .vitem__v {
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--white);
}

.page-home .vitem > p {
  margin: .75rem 0 0;
  font-size: .9375rem;
  color: var(--mist);
}

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

.page-home .version__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: var(--r-lg);
}

/* ---------- 栏目与活动 ---------- */

.page-home .switching__grid {
  display: grid;
  gap: 2.5rem;
}

.page-home .switching__copy > p {
  max-width: 44ch;
}

.page-home .steps {
  list-style: none;
  margin: 1.5rem 0 1.75rem;
  padding: 0;
  display: grid;
  gap: 1.1rem;
}

.page-home .steps li {
  display: grid;
  grid-template-columns: 2.1rem minmax(0, 1fr);
  gap: .9rem;
  align-items: start;
}

.page-home .steps__no {
  display: grid;
  place-items: center;
  width: 2.1rem;
  height: 2.1rem;
  border-radius: 50%;
  border: 1px solid rgba(108, 75, 216, .7);
  background: rgba(108, 75, 216, .16);
  color: var(--cyan);
  font-size: .875rem;
  font-weight: 700;
}

.page-home .steps p {
  margin: 0;
  font-size: .9375rem;
  color: var(--mist);
}

.page-home .switch-board {
  align-self: start;
  padding: 1.35rem 1.25rem 1.5rem;
  border: 1px solid var(--home-line);
  border-radius: var(--r-lg);
  background: linear-gradient(155deg, rgba(16, 27, 68, .92), rgba(43, 27, 77, .55));
}

.page-home .switch-board__label {
  margin: 0 0 .6rem;
  font-size: .75rem;
  letter-spacing: .2em;
  color: var(--amber);
}

.page-home .switch-board__list {
  display: flex;
  gap: .5rem;
  margin: 0;
  padding: .25rem 0 .85rem;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-home .switch-board__list li {
  flex: 0 0 auto;
  padding: .5rem .9rem;
  border: 1px solid var(--home-line);
  border-radius: var(--r-pill);
  background: rgba(7, 11, 31, .6);
  color: var(--mist);
  font-size: .875rem;
  white-space: nowrap;
}

.page-home .switch-board__list li.is-on {
  color: var(--white);
  border-color: rgba(108, 75, 216, .85);
  background: linear-gradient(120deg, rgba(108, 75, 216, .5), rgba(63, 224, 208, .22));
}

.page-home .switch-board__list li.switch-board__entry {
  color: var(--ember);
  border-color: rgba(226, 84, 44, .6);
}

.page-home .switch-board__hint {
  margin: 0;
  font-size: .8125rem;
  color: var(--mist);
}

/* ---------- 过渡带 ---------- */

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

.page-home .band img {
  display: block;
  width: 100%;
  height: clamp(110px, 17vw, 210px);
  object-fit: cover;
  border-radius: var(--r-lg);
  opacity: .85;
}

/* ---------- 城市灵感精选 ---------- */

.page-home .stories__feature {
  margin: 0 0 1.75rem;
  overflow: hidden;
  border-radius: var(--r-lg);
  border: 1px solid var(--home-line);
}

.page-home .stories__feature img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
  transition: transform .8s var(--ease);
}

.page-home .stories__feature:hover img {
  transform: scale(1.04);
}

.page-home .stories__feature .media-caption {
  padding: 0 1rem .9rem;
  margin-top: .8rem;
}

.page-home .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin: 0 0 1.5rem;
}

.page-home .stories__grid {
  display: grid;
  gap: 1rem;
}

.page-home .story-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: .55rem;
  padding: 1.35rem 1.25rem 1.75rem;
  border: 1px solid var(--home-line);
  border-radius: var(--r-lg);
  background: linear-gradient(158deg, rgba(16, 27, 68, .94), rgba(43, 27, 77, .58));
  transition: transform .4s var(--ease), border-color .4s var(--ease);
}

.page-home .story-card::after {
  content: "";
  position: absolute;
  left: 1.25rem;
  right: 1.25rem;
  bottom: .75rem;
  height: 3px;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--neon), var(--amber));
  opacity: .5;
}

.page-home .story-card:hover {
  transform: translateY(-4px);
  border-color: rgba(108, 75, 216, .65);
}

.page-home .story-card h3 {
  margin: 0;
  font-size: 1.0625rem;
}

.page-home .story-card p {
  margin: 0;
  font-size: .9375rem;
  color: var(--mist);
}

.page-home .story-card .tag {
  align-self: flex-start;
}

.page-home .filter-empty {
  margin: 1.25rem 0 0;
  font-size: .9375rem;
  color: var(--mist);
}

.page-home .filter-empty[hidden] {
  display: none;
}

.page-home .stories__more {
  margin: 1.75rem 0 0;
}

/* ---------- 快速上手 ---------- */

.page-home .start__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.page-home .start__item {
  padding: 1.6rem 1.25rem 1.4rem;
  border-top: 1px solid var(--home-amber-line);
}

.page-home .start__no {
  display: block;
  margin-bottom: .6rem;
  font-size: 2.75rem;
  font-weight: 900;
  line-height: 1;
  letter-spacing: -.04em;
  color: var(--neon);
}

.page-home .start__item p {
  margin: 0;
  font-size: .9375rem;
  color: var(--mist);
}

/* ---------- 封底 ---------- */

.page-home .closing__paper {
  position: relative;
  overflow: hidden;
  padding: 2.5rem 1.35rem 2.25rem;
  border-radius: var(--r-lg);
  background: var(--paper);
  color: var(--body-paper);
  box-shadow: var(--home-paper-shadow);
}

.page-home .closing__paper::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 5px;
  background: linear-gradient(90deg, var(--neon), var(--cyan), var(--amber));
}

.page-home .closing__stamp {
  position: absolute;
  top: 1.35rem;
  right: 1.35rem;
  transform: rotate(6deg);
}

.page-home .closing__paper h2 {
  max-width: 22ch;
  margin: 0 0 .8rem;
  color: var(--body-paper);
  font-size: clamp(1.4rem, 4.4vw, 2.2rem);
}

.page-home .closing__text {
  max-width: 52ch;
  margin: 0 0 1.6rem;
  font-size: .9375rem;
  color: rgba(42, 31, 26, .78);
}

.page-home .closing__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
}

.page-home .closing__actions .btn--paper {
  border: 1px solid rgba(42, 31, 26, .34);
  background: transparent;
  color: var(--body-paper);
}

/* ---------- 窄屏适配 ---------- */

@media (max-width: 420px) {
  .page-home .closing__stamp {
    position: static;
    display: inline-block;
    transform: rotate(-3deg);
    margin-bottom: .9rem;
  }
}

@media (min-width: 700px) {
  .page-home .wrap,
  .page-home .hero__inner {
    width: min(1240px, 100% - 3.4rem);
  }

  .page-home .stories__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.15rem;
  }

  .page-home .start__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.5rem;
  }

  .page-home .closing__paper {
    padding: 3rem 2.5rem 2.75rem;
  }
}

@media (min-width: 900px) {
  .page-home .hero__inner {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
    gap: 3.5rem;
  }

  .page-home .hero__media img {
    aspect-ratio: 4 / 5;
  }

  .page-home .version__body {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, .6fr);
    gap: 3rem;
    align-items: start;
  }

  .page-home .switching__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, .82fr);
    gap: 3.5rem;
    align-items: start;
  }
}

@media (min-width: 1000px) {
  .page-home .stories__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.35rem;
  }

  .page-home .stories__grid > :nth-child(3n + 2) {
    margin-top: 1.5rem;
  }
}

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

  .page-home .hero__visual,
  .page-home .story-card,
  .page-home .stories__feature img {
    transition: none;
  }

  .page-home .hero__visual:hover,
  .page-home .story-card:hover {
    transform: none;
  }

  .page-home .stories__feature:hover img {
    transform: none;
  }
}