.page-home {
  --home-cut: 20px;
  --home-band-pad: clamp(1rem, 2.6vw, 1.6rem);
  background: var(--ink);
  color: var(--silver);
}

/* ---------- 首屏拼贴 ---------- */
.page-home .hero-collage {
  padding: clamp(2.5rem, 7vw, 5.5rem) 0 clamp(2rem, 5vw, 3.5rem);
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(46, 211, 206, 0.13), transparent 60%),
    radial-gradient(90% 70% at 4% 100%, rgba(255, 106, 43, 0.12), transparent 62%),
    var(--ink);
  border-bottom: 1px solid var(--line);
}

.page-home .hero-collage__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.page-home .hero-block {
  position: relative;
  padding: clamp(1.25rem, 3vw, 2rem);
  background: var(--graphite);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--home-cut)), calc(100% - var(--home-cut)) 100%, 0 100%);
}

.page-home .hero-block--lead {
  background: linear-gradient(155deg, rgba(46, 211, 206, 0.08), transparent 58%), var(--graphite);
  border-left: 3px solid var(--orange);
}

.page-home .hero-title {
  font-size: clamp(2.1rem, 6.4vw, 4rem);
  line-height: 1.08;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--mist);
  margin: 0.6rem 0 1rem;
}

.page-home .hero-lede {
  font-size: clamp(0.95rem, 1.4vw, 1.05rem);
  line-height: 1.85;
  color: var(--silver);
  margin: 0 0 1.4rem;
  max-width: 46ch;
}

.page-home .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.page-home .hero-block--visual {
  padding: 0;
  background: transparent;
  clip-path: none;
}

.page-home .hero-media {
  height: 100%;
  border: 1px solid var(--line);
}

.page-home .hero-block--stat {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  border-top: 1px solid rgba(46, 211, 206, 0.35);
}

.page-home .hero-block--stat-b {
  border-top-color: rgba(255, 106, 43, 0.5);
}

.page-home .hero-stat__label {
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gray);
  margin: 0;
}

.page-home .hero-stat__num {
  font-size: clamp(2.4rem, 7vw, 3.4rem);
  line-height: 1;
  font-weight: 700;
  color: var(--cyan);
  margin: 0;
}

.page-home .hero-block--stat-b .hero-stat__num {
  color: var(--orange);
}

.page-home .hero-stat__note {
  font-size: 0.85rem;
  color: var(--silver);
  margin: 0;
  line-height: 1.7;
}

.page-home .hero-block--quote {
  background: var(--cyan-deep);
  border-left: 3px solid var(--cyan);
}

.page-home .hero-quote__text {
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  line-height: 1.8;
  color: var(--mist);
  margin: 0 0 0.9rem;
}

.page-home .hero-quote__meta {
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
  margin: 0;
}

@media (min-width: 720px) {
  .page-home .hero-collage__grid {
    grid-template-columns: repeat(12, 1fr);
    grid-auto-rows: minmax(0, auto);
    gap: 1.1rem;
  }
  .page-home .hero-block--lead {
    grid-column: 1 / span 7;
    grid-row: 1 / span 2;
  }
  .page-home .hero-block--visual {
    grid-column: 8 / span 5;
    grid-row: 1 / span 3;
  }
  .page-home .hero-block--stat-a {
    grid-column: 1 / span 3;
    grid-row: 3;
  }
  .page-home .hero-block--stat-b {
    grid-column: 4 / span 4;
    grid-row: 3;
  }
  .page-home .hero-block--quote {
    grid-column: 1 / span 7;
    grid-row: 4;
  }
}

@media (min-width: 1080px) {
  .page-home .hero-block--lead {
    grid-column: 1 / span 7;
    grid-row: 1 / span 3;
  }
  .page-home .hero-block--visual {
    grid-column: 8 / span 5;
    grid-row: 1 / span 4;
  }
  .page-home .hero-block--stat-a {
    grid-column: 1 / span 3;
    grid-row: 4;
  }
  .page-home .hero-block--stat-b {
    grid-column: 4 / span 4;
    grid-row: 4;
  }
  .page-home .hero-block--quote {
    grid-column: 1 / span 7;
    grid-row: 5;
  }
}

/* ---------- 主题筛选 ---------- */
.page-home .topic-filter {
  background: var(--graphite);
  border-bottom: 1px solid var(--line);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 5;
}

.page-home .topic-filter__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem 1rem;
}

.page-home .topic-filter__label {
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gray);
}

.page-home .topic-filter__btns {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.page-home .filter-btn {
  font: inherit;
  font-size: 0.82rem;
  padding: 0.42rem 0.85rem;
  background: transparent;
  color: var(--silver);
  border: 1px solid var(--line);
  cursor: pointer;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease), background-color 0.2s var(--ease);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%);
}

.page-home .filter-btn:hover,
.page-home .filter-btn:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
}

.page-home .filter-btn.is-active {
  background: var(--cyan-deep);
  border-color: var(--cyan);
  color: var(--cyan);
}

.page-home .topic-filter__hint {
  font-size: 0.78rem;
  flex: 1 1 100%;
  margin: 0;
}

@media (min-width: 900px) {
  .page-home .topic-filter__hint {
    flex: 0 1 auto;
    margin-left: auto;
  }
}

/* ---------- 章节通用 ---------- */
.page-home .section-head {
  max-width: 62ch;
  margin-bottom: clamp(1.6rem, 4vw, 2.6rem);
}

.page-home .section-head h2 {
  font-size: clamp(1.5rem, 3.4vw, 2.15rem);
  line-height: 1.3;
  color: var(--mist);
  margin: 0.5rem 0 0.9rem;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-home .section--mist .section-head h2,
.page-home .section--mist h2,
.page-home .section--mist h3 {
  color: var(--ink);
}

.page-home .section--mist {
  background: var(--mist);
  color: #2b3238;
}

.page-home .section--mist .lede {
  color: #47515a;
}

.page-home .section--mist .eyebrow {
  color: #5a646d;
}

.page-home .section h3 {
  color: var(--mist);
  font-size: 1.05rem;
  margin: 0 0 0.5rem;
}

/* ---------- 交付周期 ---------- */
.page-home .journey {
  background: var(--ink);
  border-bottom: 1px solid var(--line);
}

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

.page-home .journey__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px solid var(--line);
}

.page-home .journey-step {
  border-bottom: 1px solid var(--line);
  border-left: 2px solid var(--line);
  transition: border-left-color 0.25s var(--ease), background-color 0.25s var(--ease);
}

.page-home .journey-step.is-open {
  border-left-color: var(--orange);
  background: rgba(255, 106, 43, 0.05);
}

.page-home .journey-step__head {
  width: 100%;
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1rem 1rem 1.1rem;
  background: transparent;
  border: 0;
  font: inherit;
  color: var(--silver);
  text-align: left;
  cursor: pointer;
}

.page-home .journey-step__head:hover .journey-step__title,
.page-home .journey-step__head:focus-visible .journey-step__title {
  color: var(--orange);
}

.page-home .journey-step__idx {
  font-size: 0.85rem;
  color: var(--orange);
  letter-spacing: 0.08em;
}

.page-home .journey-step__title {
  font-size: clamp(1rem, 2.2vw, 1.2rem);
  font-weight: 700;
  color: var(--mist);
  transition: color 0.2s var(--ease);
}

.page-home .journey-step__day {
  font-size: 0.8rem;
  color: var(--gray);
  white-space: nowrap;
}

.page-home .journey-step__chev {
  width: 9px;
  height: 9px;
  border-right: 1.5px solid var(--cyan);
  border-bottom: 1.5px solid var(--cyan);
  transform: rotate(45deg);
  transition: transform 0.25s var(--ease);
}

.page-home .journey-step.is-open .journey-step__chev {
  transform: rotate(-135deg);
}

.page-home .journey-step__body {
  padding: 0 1.1rem 1.2rem;
  max-width: 62ch;
}

.page-home .journey-step__body p {
  margin: 0 0 0.6rem;
  line-height: 1.8;
  color: var(--silver);
}

.page-home .journey-step__body p:last-child {
  margin-bottom: 0;
}

.page-home .journey__foot {
  margin-top: clamp(1.5rem, 4vw, 2.2rem);
  padding-top: 1.4rem;
  border-top: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: flex-start;
}

.page-home .journey__foot p {
  margin: 0;
  max-width: 62ch;
  line-height: 1.85;
  color: var(--silver);
}

@media (min-width: 800px) {
  .page-home .journey__foot {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

/* ---------- 系列色带 ---------- */
.page-home .series {
  border-bottom: 1px solid var(--line);
}

.page-home .series__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 4vw, 2.5rem);
}

.page-home .series__bands {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.page-home .band {
  position: relative;
  display: block;
  text-decoration: none;
  padding: var(--home-band-pad) calc(var(--home-band-pad) + 0.4rem);
  border: 1px solid var(--line);
  background: var(--graphite);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease);
  overflow: hidden;
}

.page-home .band::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 5px;
  background: var(--cyan);
  transition: width 0.25s var(--ease);
}

.page-home .band--pro::before { background: var(--orange); }
.page-home .band--long::before { background: var(--cyan); }
.page-home .band--lite::before { background: var(--silver); }
.page-home .band--std::before { background: var(--gray); }

.page-home .band:hover,
.page-home .band:focus-visible {
  border-color: var(--cyan);
  transform: translateX(3px);
}

.page-home .band:hover::before,
.page-home .band:focus-visible::before {
  width: 9px;
}

.page-home .band__name {
  display: block;
  font-size: clamp(1.05rem, 2.4vw, 1.25rem);
  font-weight: 700;
  color: var(--mist);
  margin-bottom: 0.35rem;
}

.page-home .band__desc {
  display: block;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--silver);
  max-width: 52ch;
}

.page-home .band__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.75rem;
  opacity: 1;
  transition: opacity 0.25s var(--ease);
}

.page-home .band__tags .tag {
  font-size: 0.72rem;
  color: var(--cyan);
  border-color: rgba(46, 211, 206, 0.4);
}

.page-home .series__visual {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.page-home .series__note {
  font-size: 0.88rem;
  line-height: 1.8;
  color: var(--silver);
  margin: 0;
}

.page-home .series__visual .btn {
  align-self: flex-start;
}

@media (min-width: 960px) {
  .page-home .series__layout {
    grid-template-columns: 7fr 5fr;
    align-items: start;
  }
}

/* ---------- 退换规则 ---------- */
.page-home .rules__grid {
  align-items: start;
}

.page-home .rules__intro h2 {
  font-size: clamp(1.5rem, 3.4vw, 2.1rem);
  line-height: 1.3;
  margin: 0.5rem 0 0.9rem;
  font-weight: 800;
}

.page-home .rules__year {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  margin: 1.5rem 0 0;
  padding-top: 1.1rem;
  border-top: 1px solid rgba(10, 12, 15, 0.14);
}

.page-home .rules__year-num {
  font-size: clamp(2.2rem, 6vw, 3.2rem);
  font-weight: 700;
  color: var(--orange);
  line-height: 1;
}

.page-home .rules__year-cap {
  font-size: 0.85rem;
  color: #5a646d;
}

.page-home .rules__cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.9rem;
}

.page-home .rule-card {
  background: #ffffff;
  padding: clamp(1.1rem, 2.6vw, 1.5rem);
  border-left: 3px solid #0f3b3e;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
}

.page-home .rule-card--wide {
  border-left-color: var(--orange);
}

.page-home .rule-card__idx {
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: #7b858e;
  margin: 0 0 0.4rem;
}

.page-home .rule-card__title {
  font-size: 1.05rem;
  margin: 0 0 0.55rem;
  color: var(--ink);
}

.page-home .rule-card p {
  margin: 0;
  line-height: 1.85;
  color: #3a434b;
  font-size: 0.92rem;
}

.page-home .rule-card .btn {
  margin-top: 0.9rem;
}

@media (min-width: 900px) {
  .page-home .rules__cards {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-home .rule-card--wide {
    grid-column: 1 / -1;
  }
}

/* ---------- 服务网点 ---------- */
.page-home .network {
  background: var(--ink);
  border-bottom: 1px solid var(--line);
}

.page-home .network__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 4vw, 2.5rem);
}

.page-home .network__data {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}

.page-home .net-stat {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: baseline;
  gap: 0.9rem;
  padding-bottom: 0.9rem;
  border-bottom: 1px solid var(--line);
}

.page-home .net-stat__num {
  font-size: clamp(2rem, 5.5vw, 2.8rem);
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
  margin: 0;
}

.page-home .net-stat__cap {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--silver);
}

.page-home .henan {
  margin-top: 0.4rem;
  padding: 1rem 1.1rem;
  background: var(--graphite);
  border-left: 3px solid var(--orange);
}

.page-home .henan__label {
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--orange);
  margin: 0 0 0.7rem;
}

.page-home .henan__list {
  list-style: none;
  margin: 0 0 0.8rem;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.45rem 1rem;
  font-size: 0.9rem;
  color: var(--mist);
}

.page-home .henan__list li::before {
  content: "／";
  color: var(--cyan);
  margin-right: 0.4rem;
  font-family: var(--mono);
}

.page-home .henan__note {
  font-size: 0.82rem;
  margin: 0;
}

.page-home .network__data .btn {
  align-self: flex-start;
}

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

/* ---------- 使用指南 ---------- */
.page-home .guide {
  border-bottom: 1px solid var(--line);
}

.page-home .guide__grid {
  align-items: start;
  gap: clamp(1.5rem, 4vw, 2.5rem);
}

.page-home .guide__text p {
  line-height: 1.85;
  color: var(--silver);
}

.page-home .guide__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.4rem;
}

.page-home .guide__chapters {
  list-style: none;
  margin: 0 0 1.2rem;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-home .guide__chapters li {
  display: flex;
  gap: 0.85rem;
  align-items: baseline;
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.92rem;
  color: var(--mist);
}

.page-home .guide__chapters .mono {
  color: var(--cyan);
  font-size: 0.78rem;
}

.page-home .guide__mail {
  font-size: 0.82rem;
  line-height: 1.9;
  margin: 0;
  word-break: break-all;
}

.page-home .guide__mail .mono {
  color: var(--cyan);
}

/* ---------- 收尾 ---------- */
.page-home .closing {
  background: linear-gradient(120deg, rgba(255, 106, 43, 0.08), transparent 55%), var(--ink);
  padding-bottom: clamp(2.5rem, 6vw, 4.5rem);
}

.page-home .closing__inner {
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
  border-top: 1px solid var(--line);
  padding-top: clamp(1.6rem, 4vw, 2.4rem);
}

.page-home .closing__text h2 {
  font-size: clamp(1.4rem, 3.2vw, 2rem);
  color: var(--mist);
  margin: 0.4rem 0 0.7rem;
  font-weight: 800;
}

.page-home .closing__text p {
  margin: 0;
  line-height: 1.85;
  color: var(--silver);
  max-width: 58ch;
}

.page-home .closing__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.page-home .closing__contact {
  margin: 0;
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  color: var(--gray);
  word-break: break-all;
}

@media (min-width: 900px) {
  .page-home .closing__inner {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
  }
  .page-home .closing__contact {
    flex: 1 1 100%;
    padding-top: 1rem;
    border-top: 1px solid var(--line);
  }
}

/* 筛选态：隐藏未选模块 */
.page-home [data-topic].is-filtered-out {
  display: none;
}

@media (prefers-reduced-motion: reduce) {
  .page-home .band,
  .page-home .filter-btn,
  .page-home .journey-step__chev {
    transition: none;
  }
  .page-home .band:hover,
  .page-home .band:focus-visible {
    transform: none;
  }
}