.page-home {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  overflow-x: hidden;
}

/* 首屏 */
.page-home .hero {
  position: relative;
  overflow: hidden;
  color: var(--paper);
  background:
    radial-gradient(900px 520px at 82% 10%, rgba(224, 138, 60, .22), transparent 62%),
    radial-gradient(760px 620px at 6% 92%, rgba(30, 111, 107, .45), transparent 66%),
    var(--ink-night);
  padding: calc(var(--topbar-h) + 18px) 0 clamp(40px, 8vw, 76px);
}

.page-home .hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
}

.page-home .hero-crumb {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .12em;
  color: var(--turq-mist);
}

.page-home .hero-crumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .hero-crumb li + li::before {
  content: "/";
  margin-right: 10px;
  opacity: .55;
}

.page-home .hero-crumb a {
  color: inherit;
  text-decoration: none;
}

.page-home .hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .16em;
  color: var(--turq-mist);
}

.page-home .hero-eyebrow::before {
  content: "";
  width: 26px;
  height: 2px;
  background: var(--amber);
}

.page-home .hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 7.2vw, 4.2rem);
  line-height: 1.08;
  letter-spacing: -.01em;
}

.page-home .hero h1 span {
  display: block;
  margin-top: .3em;
  font-size: .6em;
  letter-spacing: .02em;
  color: var(--amber);
}

.page-home .hero-lead {
  margin: 18px 0 0;
  max-width: 28em;
  font-size: 1rem;
  line-height: 1.85;
  color: rgba(244, 238, 227, .86);
}

.page-home .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-home .hero-visual {
  position: relative;
  margin: 0;
  aspect-ratio: 4 / 5;
  border-radius: var(--radius-a);
  overflow: hidden;
}

.page-home .hero-visual img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(.96) saturate(1.06);
}

.page-home .hero-visual figcaption,
.page-home .case-visual figcaption,
.page-home .space-visual figcaption {
  position: absolute;
  left: 14px;
  bottom: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(19, 26, 51, .68);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: .66rem;
  letter-spacing: .14em;
}

.page-home .hero-ribbon {
  position: absolute;
  left: -14px;
  bottom: 14px;
  display: flex;
  transform: rotate(-12deg);
  transform-origin: left center;
  z-index: 2;
}

.page-home .hero-ribbon span {
  display: block;
  width: 48px;
  height: 4px;
}

.page-home .hero-ribbon span:nth-child(1) { background: #2C6BA8; }
.page-home .hero-ribbon span:nth-child(2) { background: #F4EEE3; }
.page-home .hero-ribbon span:nth-child(3) { background: var(--flag-red); }
.page-home .hero-ribbon span:nth-child(4) { background: var(--turq); }
.page-home .hero-ribbon span:nth-child(5) { background: var(--flag-yellow); }

/* 章节通用 */
.page-home .band {
  padding: clamp(44px, 7vw, 84px) 0;
}

.page-home .band--lead { background: var(--paper); }

.page-home .band--steps {
  background: var(--ink-dusk);
  color: var(--paper);
}

.page-home .band--cases {
  background: linear-gradient(180deg, var(--paper) 0%, #EDE4D3 100%);
}

.page-home .band--space {
  background: var(--ink-night);
  color: var(--paper);
}

.page-home .band--visit { background: var(--paper); }

.page-home .section-head {
  display: grid;
  gap: 12px;
  margin-bottom: clamp(24px, 4vw, 40px);
}

.page-home .section-head .section-index {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  letter-spacing: .12em;
  color: var(--gold);
}

.page-home .section-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4.4vw, 2.3rem);
  line-height: 1.24;
  letter-spacing: -.005em;
}

.page-home .section-head p {
  margin: 10px 0 0;
  max-width: 40em;
  font-size: .95rem;
  line-height: 1.82;
  color: var(--stone);
}

.page-home .section-head--onDark p {
  color: rgba(244, 238, 227, .78);
}

.page-home .section-head--onDark a {
  color: var(--amber);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* 01 三栏导读 */
.page-home .lead-grid {
  display: grid;
  gap: 16px;
}

.page-home .lead-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 208px;
  padding: 24px 22px;
  border-radius: var(--radius-a);
  text-decoration: none;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-home .lead-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.32rem;
  line-height: 1.3;
}

.page-home .lead-card p {
  margin: 0;
  font-size: .92rem;
  line-height: 1.75;
}

.page-home .lead-tag {
  align-self: flex-start;
  padding: 4px 10px;
  border: 1px solid currentColor;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: .66rem;
  letter-spacing: .14em;
}

.page-home .lead-card--night {
  background: var(--ink-night);
  color: var(--paper);
}

.page-home .lead-card--night p { color: rgba(244, 238, 227, .8); }

.page-home .lead-card--turq {
  background: var(--turq);
  color: var(--paper);
}

.page-home .lead-card--turq p { color: rgba(244, 238, 227, .9); }

.page-home .lead-card--paper {
  background: #FFFDF8;
  color: var(--ink);
  border: 1px solid rgba(30, 111, 107, .28);
}

.page-home .lead-card--paper p { color: var(--stone); }

.page-home .lead-go {
  margin-top: auto;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .1em;
}

.page-home .lead-card--paper .lead-go { color: var(--turq); }

/* 02 三步入口 */
.page-home .step-layout {
  display: grid;
  gap: 22px;
  align-items: start;
}

.page-home .step-visual {
  margin: 0;
  border-radius: var(--radius-a);
  overflow: hidden;
}

.page-home .step-visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-home .step-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.page-home .step-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 18px 18px 16px;
  border-radius: var(--radius-b);
  background: rgba(244, 238, 227, .07);
  border: 1px solid rgba(168, 207, 201, .3);
}

.page-home .step-num {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--amber);
  color: var(--on-amber);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: .95rem;
}

.page-home .step-card h3 {
  margin: 4px 0 6px;
  font-family: var(--font-display);
  font-size: 1.06rem;
}

.page-home .step-card p {
  margin: 0;
  font-size: .9rem;
  line-height: 1.72;
  color: rgba(244, 238, 227, .82);
}

.page-home .step-card details { margin-top: 10px; }

.page-home .step-card summary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .1em;
  color: var(--turq-mist);
}

.page-home .step-card summary::-webkit-details-marker { display: none; }

.page-home .step-card summary::after {
  content: "+";
  font-size: .95rem;
  line-height: 1;
}

.page-home .step-card details[open] summary::after { content: "−"; }

.page-home .step-card details p {
  margin: 8px 0 0;
  font-size: .86rem;
  color: rgba(244, 238, 227, .7);
}

/* 03 案例轨道 */
.page-home .case-layout {
  display: grid;
  gap: 22px;
  align-items: start;
}

.page-home .case-visual {
  position: relative;
  margin: 0;
  border-radius: var(--radius-a);
  overflow: hidden;
}

.page-home .case-visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.page-home .case-rail { min-width: 0; }

.page-home .case-track {
  display: flex;
  gap: 14px;
  margin: 0;
  padding: 2px 2px 16px;
  list-style: none;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.page-home .case-track li {
  flex: 0 0 auto;
  scroll-snap-align: start;
}

.page-home .case-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: clamp(180px, 56vw, 232px);
  aspect-ratio: 1 / 1;
  padding: 16px;
  border-radius: var(--radius-b);
  text-decoration: none;
  color: var(--paper);
  background: linear-gradient(155deg, #24325E 0%, #131A33 74%);
  border: 1px solid rgba(201, 162, 39, .38);
  box-shadow: inset 0 0 0 1px rgba(244, 238, 227, .05);
  transition: transform var(--dur) var(--ease), filter var(--dur) var(--ease);
}

.page-home .case-top {
  display: flex;
  align-items: center;
  gap: 8px;
}

.page-home .case-num {
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .14em;
  color: var(--gold);
}

.page-home .case-badge {
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--flag-red);
  color: #FFF6E9;
  font-family: var(--font-mono);
  font-size: .6rem;
  letter-spacing: .1em;
}

.page-home .case-title {
  font-family: var(--font-display);
  font-size: 1rem;
  line-height: 1.38;
}

.page-home .case-more {
  display: inline-block;
  margin-top: 4px;
  padding-bottom: 3px;
  border-bottom: 1px solid currentColor;
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .08em;
  color: var(--turq);
  text-decoration: none;
}

/* 04 空间速览 */
.page-home .space-grid {
  display: grid;
  gap: 26px;
  align-items: start;
}

.page-home .stat {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 16px 0;
  border-top: 1px solid rgba(168, 207, 201, .26);
}

.page-home .stat:last-of-type {
  border-bottom: 1px solid rgba(168, 207, 201, .26);
}

.page-home .stat-num {
  font-family: var(--font-mono);
  font-size: clamp(1.9rem, 6vw, 2.7rem);
  line-height: 1;
  color: var(--gold);
}

.page-home .stat-label {
  font-size: .9rem;
  line-height: 1.6;
  color: rgba(244, 238, 227, .82);
}

.page-home .space-note {
  margin: 20px 0 0;
  max-width: 34em;
  font-size: .92rem;
  line-height: 1.86;
  color: rgba(244, 238, 227, .78);
}

.page-home .space-visual {
  position: relative;
  margin: 0;
  border-radius: var(--radius-a);
  overflow: hidden;
}

.page-home .space-visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-home .text-link {
  display: inline-block;
  margin-top: 16px;
  padding-bottom: 3px;
  border-bottom: 1px solid rgba(224, 138, 60, .55);
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .08em;
  color: var(--amber);
  text-decoration: none;
}

/* 05 到访与联络 */
.page-home .visit-grid {
  display: grid;
  gap: 24px;
  align-items: start;
}

.page-home .visit-list {
  margin: 0;
  display: grid;
}

.page-home .visit-list > div {
  display: grid;
  grid-template-columns: 5.2em minmax(0, 1fr);
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(30, 111, 107, .22);
}

.page-home .visit-list dt {
  padding-top: .25em;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .12em;
  color: var(--stone);
}

.page-home .visit-list dd {
  margin: 0;
  font-size: .95rem;
  line-height: 1.72;
  color: var(--ink);
  word-break: break-word;
}

.page-home .visit-cta {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 14px;
  padding: 26px 22px;
  border-radius: var(--radius-a);
  background: var(--ink-night);
  color: var(--paper);
}

.page-home .visit-cta p {
  margin: 0;
  font-size: .92rem;
  line-height: 1.82;
  color: rgba(244, 238, 227, .84);
}

.page-home .visit-cta .text-link { margin-top: 0; }

/* 悬停与动效 */
@media (hover: hover) {
  .page-home .lead-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 18px 36px -22px rgba(19, 26, 51, .55);
  }

  .page-home .case-card:hover {
    transform: translateY(-4px);
    filter: brightness(1.14);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .lead-card,
  .page-home .case-card {
    transition: none;
  }

  .page-home .lead-card:hover,
  .page-home .case-card:hover {
    transform: none;
    filter: none;
  }
}

/* 平板 */
@media (min-width: 768px) {
  .page-home .section-head {
    grid-template-columns: 74px minmax(0, 1fr);
    gap: 20px;
    align-items: start;
  }

  .page-home .section-head .section-index {
    font-size: 1.55rem;
    padding-top: .18em;
  }

  .page-home .lead-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
  }

  .page-home .lead-card:nth-child(2) { margin-top: 32px; }
  .page-home .lead-card:nth-child(3) { margin-top: 64px; }

  .page-home .visit-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    gap: 30px;
  }
}

/* 桌面 */
@media (min-width: 960px) {
  .page-home .hero {
    padding-bottom: clamp(56px, 6vw, 88px);
  }

  .page-home .hero-inner {
    grid-template-columns: minmax(0, 1fr) minmax(300px, 400px);
    align-items: end;
    column-gap: clamp(24px, 4vw, 56px);
    row-gap: 20px;
  }

  .page-home .hero-crumb {
    grid-column: 1 / -1;
  }

  .page-home .hero-copy {
    padding-bottom: 12px;
  }

  .page-home .hero h1 {
    font-size: clamp(2.6rem, 4.4vw, 4rem);
  }

  .page-home .hero-visual {
    aspect-ratio: 3 / 4;
    clip-path: polygon(13% 0, 100% 0, 100% 100%, 0 100%);
  }

  .page-home .hero-ribbon {
    left: auto;
    right: 20px;
    bottom: -6px;
  }

  .page-home .step-layout {
    grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
    gap: 32px;
  }

  .page-home .case-layout {
    grid-template-columns: minmax(0, 300px) minmax(0, 1fr);
    gap: 30px;
  }

  .page-home .space-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, .92fr);
    gap: 40px;
    align-items: center;
  }

  .page-home .visit-grid {
    gap: 40px;
  }

  .page-home .visit-list > div {
    padding: 16px 0;
  }
}