.page-home {
  background: var(--sand);
  color: var(--stone);
  font-family: var(--sans);
}

.page-home #home-entry,
.page-home #flow,
.page-home #export {
  scroll-margin-top: calc(var(--head-h) + 24px);
}

/* ---------- 首屏分屏 ---------- */
.page-home .home-hero {
  padding: clamp(18px, 4vw, 40px) 0 clamp(28px, 5vw, 58px);
}

.page-home .hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  background: var(--paper);
  border: 1px solid var(--line-strong);
  box-shadow: 5px 5px 0 rgba(30, 27, 24, .06);
}

.page-home .hero-main {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 4.6vw, 56px);
  color: var(--paper);
  background: linear-gradient(158deg, var(--clay) 0%, var(--clay-deep) 66%, var(--clay-dark) 100%);
}

.page-home .hero-main::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(251, 246, 236, .18) 1px, transparent 1px);
  background-size: 13px 13px;
  opacity: .45;
  pointer-events: none;
}

.page-home .hero-main::after {
  content: "V2.0";
  position: absolute;
  right: -8px;
  bottom: -26px;
  font-family: var(--mono);
  font-weight: 700;
  font-size: clamp(104px, 22vw, 200px);
  line-height: .8;
  letter-spacing: -.05em;
  color: rgba(251, 246, 236, .1);
  pointer-events: none;
}

.page-home .hero-inner {
  position: relative;
  z-index: 1;
}

.page-home .hero-eyebrow {
  margin: 0 0 16px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: .18em;
  color: var(--gold);
}

.page-home .hero-title {
  margin: 0 0 18px;
  font-family: var(--serif);
  font-weight: 800;
  font-size: clamp(29px, 5vw, 54px);
  line-height: 1.16;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-home .hero-title .hl {
  background: linear-gradient(transparent 64%, rgba(201, 162, 39, .55) 64%);
}

.page-home .hero-lede {
  margin: 0 0 26px;
  max-width: 34em;
  font-size: clamp(15px, 1.4vw, 17px);
  line-height: 1.8;
  color: rgba(251, 246, 236, .88);
}

.page-home .hero-main .btn-ghost {
  border-color: rgba(251, 246, 236, .55);
  color: var(--paper);
}

.page-home .hero-main .btn-ghost:hover {
  background: rgba(251, 246, 236, .12);
}

.page-home .hero-specs {
  list-style: none;
  display: grid;
  gap: 12px;
  margin: 28px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid rgba(251, 246, 236, .22);
}

.page-home .hero-specs li {
  font-family: var(--mono);
  font-size: 11.5px;
  line-height: 1.6;
  color: rgba(251, 246, 236, .7);
}

.page-home .hero-specs b {
  display: block;
  margin-bottom: 3px;
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 600;
  color: var(--paper);
}

/* 首屏第二栏 */
.page-home .hero-side {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: clamp(18px, 3vw, 30px);
  background: var(--paper);
}

.page-home .side-card {
  position: relative;
  padding: 16px 18px 18px;
  background: var(--paper);
  border: 1px solid var(--line);
  box-shadow: 3px 3px 0 rgba(30, 27, 24, .07);
}

.page-home .side-card::after {
  content: "";
  position: absolute;
  right: -1px;
  bottom: -1px;
  width: 13px;
  height: 13px;
  background: linear-gradient(135deg, transparent 50%, rgba(30, 27, 24, .16) 50%);
}

.page-home .side-card-head {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.page-home .side-card-title {
  margin: 0;
  font-family: var(--serif);
  font-weight: 700;
  font-size: 19px;
  line-height: 1.3;
  color: var(--ink);
}

.page-home .side-card p {
  margin: 0 0 10px;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--stone);
}

.page-home .side-link {
  display: inline-block;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--clay);
  text-decoration: none;
  border-bottom: 1px solid rgba(158, 59, 42, .4);
  padding-bottom: 2px;
}

.page-home .side-link:hover {
  color: var(--clay-deep);
  border-color: var(--clay-deep);
}

.page-home .contact-card {
  background: var(--bronze);
  border-color: var(--bronze);
  box-shadow: 3px 3px 0 rgba(47, 93, 80, .3);
  color: var(--paper);
}

.page-home .contact-card::after {
  background: linear-gradient(135deg, transparent 50%, rgba(251, 246, 236, .32) 50%);
}

.page-home .contact-card .side-card-title {
  color: var(--paper);
}

.page-home .contact-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 10px;
  padding: 9px 0;
  border-top: 1px solid rgba(251, 246, 236, .2);
}

.page-home .contact-label {
  width: 100%;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: .14em;
  color: rgba(251, 246, 236, .62);
}

.page-home .contact-value {
  font-family: var(--mono);
  font-size: 13.5px;
  color: var(--paper);
  word-break: break-all;
}

.page-home .contact-card .copy-btn {
  font-family: var(--mono);
  font-size: 11.5px;
  padding: 3px 9px;
  color: var(--paper);
  background: transparent;
  border: 1px solid rgba(251, 246, 236, .5);
  border-radius: var(--radius);
  cursor: pointer;
}

.page-home .contact-card .copy-btn:hover {
  background: rgba(251, 246, 236, .14);
}

.page-home .contact-card .copy-btn[data-copied] {
  border-color: var(--gold);
  color: var(--gold);
}

.page-home .contact-card .contact-time {
  margin: 10px 0 12px;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(251, 246, 236, .8);
}

.page-home .side-link--light {
  color: var(--gold);
  border-color: rgba(201, 162, 39, .5);
}

.page-home .side-link--light:hover {
  color: var(--paper);
  border-color: var(--paper);
}

.page-home .hero-visual {
  margin: 0;
  overflow: hidden;
  aspect-ratio: 5 / 4;
  background: var(--sand);
  border: 1px solid var(--line);
}

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

/* ---------- 三端过渡带 ---------- */
.page-home .home-band {
  padding: clamp(34px, 5.5vw, 72px) 0;
  background: var(--paper);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-home .band-grid {
  display: grid;
  gap: clamp(22px, 4vw, 44px);
  align-items: center;
}

.page-home .band-visual {
  margin: 0;
  background: var(--sand);
  border: 1px solid var(--line-strong);
}

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

.page-home .band-title {
  margin: 10px 0 12px;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(23px, 3.2vw, 32px);
  line-height: 1.32;
  color: var(--ink);
}

.page-home .band-text {
  margin: 0 0 20px;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--stone);
}

.page-home .band-stats {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 0 0 18px;
  padding: 16px 0 0;
  border-top: 1px solid var(--line);
}

.page-home .band-num {
  display: block;
  font-family: var(--mono);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  line-height: 1;
  color: var(--clay);
}

.page-home .band-cap {
  display: block;
  margin-top: 6px;
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--stone);
}

.page-home .band-note {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: rgba(74, 70, 66, .85);
}

.page-home .band-note a {
  color: var(--bronze);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 93, 80, .4);
}

/* ---------- 横向时间轴 ---------- */
.page-home .home-flow {
  padding: clamp(34px, 5.5vw, 72px) 0;
  background: var(--sand);
}

.page-home .flow-head {
  margin-bottom: 22px;
}

.page-home .flow-hint {
  margin: 10px 0 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .02em;
  color: rgba(74, 70, 66, .78);
}

.page-home .flow-track {
  list-style: none;
  display: flex;
  gap: 14px;
  margin: 0;
  padding: 4px 2px 16px;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  scrollbar-width: thin;
}

.page-home .flow-track:focus-visible {
  outline: 2px solid var(--bronze-light);
  outline-offset: 4px;
}

.page-home .flow-node {
  flex: 0 0 min(300px, 84vw);
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  padding: 20px 18px 22px;
  background: var(--paper);
  border: 1px solid var(--line-strong);
  border-top-width: 4px;
  box-shadow: 3px 3px 0 rgba(30, 27, 24, .06);
}

.page-home .flow-node--clay {
  border-top-color: var(--clay);
}

.page-home .flow-node--bronze {
  border-top-color: var(--bronze);
}

.page-home .flow-node--gold {
  border-top-color: var(--gold);
}

.page-home .flow-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  margin-bottom: 12px;
  font-family: var(--mono);
  font-size: 14px;
  color: var(--bronze);
  border: 2px solid var(--bronze);
  border-radius: var(--radius);
  background: rgba(78, 132, 116, .1);
}

.page-home .flow-title {
  margin: 0 0 10px;
  font-family: var(--serif);
  font-weight: 700;
  font-size: 20px;
  line-height: 1.35;
  color: var(--ink);
}

.page-home .flow-steps {
  margin: 0 0 14px;
  padding-left: 1.1em;
  font-size: 14px;
  line-height: 1.75;
  color: var(--stone);
}

.page-home .flow-steps li {
  margin-bottom: 6px;
}

.page-home .flow-steps li::marker {
  color: var(--gold);
  font-family: var(--mono);
}

.page-home .flow-result {
  margin: auto 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--line-strong);
  font-size: 13px;
  line-height: 1.7;
  color: var(--bronze);
}

.page-home .flow-visual {
  margin: 22px 0 0;
  padding: 10px;
  background: var(--paper);
  border: 1px solid var(--line);
}

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

.page-home .flow-visual figcaption {
  margin-top: 10px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: .04em;
  color: rgba(74, 70, 66, .75);
}

/* ---------- 序号 3 导出 ---------- */
.page-home .home-export {
  padding: 0 0 clamp(34px, 5vw, 64px);
}

.page-home .export-card {
  padding: clamp(22px, 4vw, 44px);
  background: var(--paper);
  border: 1px solid var(--line-strong);
  box-shadow: 5px 5px 0 rgba(30, 27, 24, .06);
}

.page-home .export-grid {
  display: grid;
  gap: 22px;
}

.page-home .stamp3 {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 76px;
  height: 76px;
  font-family: var(--mono);
  font-size: 36px;
  font-weight: 700;
  color: var(--clay);
  border: 2px solid var(--clay);
  border-radius: var(--radius);
  background: rgba(158, 59, 42, .06);
}

.page-home .export-title {
  margin: 10px 0 12px;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.3;
  color: var(--ink);
}

.page-home .export-body p {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--stone);
}

.page-home .export-list {
  list-style: none;
  display: grid;
  gap: 8px;
  margin: 0 0 20px;
  padding: 0;
}

.page-home .export-list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--stone);
}

.page-home .export-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 7px;
  height: 7px;
  background: var(--gold);
}

.page-home .export-list a {
  color: var(--bronze);
}

.page-home .export-visual {
  margin: 0;
  background: var(--sand);
  border: 1px solid var(--line);
}

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

/* ---------- 序号索引 ---------- */
.page-home .home-index {
  padding: 0 0 clamp(30px, 4.5vw, 56px);
}

.page-home .index-head {
  margin-bottom: 16px;
}

.page-home .index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 2px solid var(--ink);
}

.page-home .index-item {
  border-bottom: 1px solid var(--line);
}

.page-home .index-item a {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 14px 4px;
  text-decoration: none;
  color: var(--ink);
  transition: background .2s var(--ease), padding-left .2s var(--ease);
}

.page-home .index-item a:hover {
  background: var(--paper);
  padding-left: 12px;
}

.page-home .index-number {
  flex: none;
  width: 2.2em;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--gold);
}

.page-home .index-label {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 12px;
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 700;
}

.page-home .index-label em {
  font-family: var(--sans);
  font-style: normal;
  font-size: 13px;
  font-weight: 400;
  color: rgba(74, 70, 66, .8);
}

.page-home .index-item--key a {
  color: var(--clay);
}

.page-home .index-item--key .index-number {
  color: var(--clay);
}

/* ---------- 版本信息条 ---------- */
.page-home .version-bar {
  background: var(--clay-deep);
  color: rgba(251, 246, 236, .82);
}

.page-home .version-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 24px;
  padding: 16px 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .04em;
}

.page-home .version-icp {
  margin-left: auto;
  color: rgba(251, 246, 236, .62);
}

/* ---------- 断点 ---------- */
@media (min-width: 520px) {
  .page-home .hero-specs {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }
}

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

@media (min-width: 900px) {
  .page-home .hero-grid {
    grid-template-columns: 7fr 5fr;
  }

  .page-home .export-grid {
    grid-template-columns: 92px minmax(0, 1fr) 320px;
    gap: clamp(22px, 3.4vw, 40px);
    align-items: start;
  }

  .page-home .stamp3 {
    width: 92px;
    height: 92px;
    font-size: 44px;
  }

  .page-home .flow-track {
    gap: 18px;
  }

  .page-home .flow-node {
    flex-basis: 330px;
  }
}

@media (min-width: 1200px) {
  .page-home .flow-node {
    flex-basis: 360px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .index-item a {
    transition: none;
  }
}