/* ===== 首页 · 四季档案入口 ===== */
.page-home {
  background: var(--paper);
  color: var(--ink);
  overflow-x: clip;
}

.page-home .hero {
  position: relative;
  padding: clamp(108px, 15vw, 168px) 0 clamp(36px, 5vw, 64px);
  background:
    radial-gradient(120% 90% at 100% 0%, rgba(143, 191, 122, 0.18), transparent 62%),
    radial-gradient(90% 80% at 0% 100%, rgba(242, 106, 75, 0.1), transparent 60%),
    var(--paper);
}

.page-home .hero__grid {
  display: grid;
  gap: clamp(34px, 6vw, 60px);
  align-items: center;
}

.page-home .hero__breadcrumb {
  margin: 0 0 18px;
  color: var(--ink-55);
}

.page-home .hero__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(36px, 6.2vw, 82px);
  line-height: 1.06;
  letter-spacing: 0.02em;
  margin: 0 0 20px;
  color: var(--ink);
  overflow-wrap: break-word;
}

.page-home .hero__lede {
  margin: 0;
  max-width: 34em;
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.85;
  color: var(--ink-70);
}

.page-home .hero__jumps {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-home .hero__jumps li {
  border-bottom: 1px solid var(--line-soft);
}

.page-home .hero__jump {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 13px 6px;
  text-decoration: none;
  color: var(--ink);
  transition: background-color var(--t), padding-left var(--t);
}

.page-home .hero__jump:hover,
.page-home .hero__jump:focus-visible {
  background: var(--sand);
  padding-left: 14px;
}

.page-home .hero__jump:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

.page-home .hero__jump-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--spring-deep);
  flex: 0 0 auto;
}

.page-home .hero__jump-num--summer { color: var(--summer-deep); }
.page-home .hero__jump-num--autumn { color: var(--autumn-deep); }
.page-home .hero__jump-num--winter { color: var(--winter-deep); }

.page-home .hero__jump-body {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 12px;
  align-items: baseline;
}

.page-home .hero__jump-body strong {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
}

.page-home .hero__jump-body span {
  font-size: 13px;
  color: var(--ink-55);
}

.page-home .hero__right {
  position: relative;
}

.page-home .hero__media {
  border: 1px solid var(--line);
  background: var(--sand);
  box-shadow: 18px 18px 0 -1px rgba(28, 27, 23, 0.06);
}

.page-home .hero__media .media__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-home .dial {
  width: min(186px, 56%);
  margin: -58px auto 0;
  position: relative;
  filter: drop-shadow(0 10px 24px rgba(28, 27, 23, 0.16));
}

.page-home .dial__svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-home .dial__wedge--spring path { fill: var(--spring); }
.page-home .dial__wedge--summer path { fill: var(--summer); }
.page-home .dial__wedge--autumn path { fill: var(--autumn); }
.page-home .dial__wedge--winter path { fill: var(--winter); }

.page-home .dial__hub {
  fill: var(--paper);
  stroke: var(--line);
  stroke-width: 1;
}

.page-home .dial__label {
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 700;
  fill: var(--ink);
}

.page-home .dial__sub {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  fill: var(--ink-55);
}

.page-home .dial__tick {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  fill: var(--paper);
}

/* 服务概况 */
.page-home .stats {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}

.page-home .stats__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px 20px;
  padding-top: 22px;
  padding-bottom: 22px;
}

.page-home .stats__item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-home .stats__num {
  font-family: var(--font-display);
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 800;
  line-height: 1.1;
  color: var(--ink);
}

.page-home .stats__label {
  font-size: 12px;
  line-height: 1.5;
  color: var(--ink-55);
  letter-spacing: 0.02em;
}

/* 季节入口 */
.page-home .seasons__head {
  max-width: 760px;
}

.page-home .seasons__intro {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-70);
}

.page-home .seasons__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-top: clamp(28px, 4vw, 44px);
}

.page-home .season-card {
  --sc: var(--spring);
  --sc-deep: var(--spring-deep);
  position: relative;
  padding: 24px 22px 22px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-top: 4px solid var(--sc);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: transform var(--t), border-color var(--t), background-color var(--t);
}

.page-home .season-card--spring { --sc: var(--spring); --sc-deep: var(--spring-deep); }
.page-home .season-card--summer { --sc: var(--summer); --sc-deep: var(--summer-deep); }
.page-home .season-card--autumn { --sc: var(--autumn); --sc-deep: var(--autumn-deep); }
.page-home .season-card--winter { --sc: var(--winter); --sc-deep: var(--winter-deep); }

.page-home .season-card:hover,
.page-home .season-card:focus-within {
  transform: translateY(-3px);
  background: #fffdf7;
}

.page-home .season-card__num {
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--sc-deep);
}

.page-home .season-card__num span {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--ink-55);
}

.page-home .season-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  line-height: 1.45;
}

.page-home .season-card__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-70);
  flex: 1;
}

.page-home .season-card__link {
  align-self: flex-start;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--sc-deep);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 2px;
}

.page-home .season-card__link:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

/* 案例条带 */
.page-home .cases__head {
  max-width: 720px;
}

.page-home .cases__intro {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-70);
}

.page-home .cases__media {
  margin-top: clamp(26px, 4vw, 40px);
  border: 1px solid var(--line);
  background: var(--sand);
}

.page-home .cases__media .media__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-home .case-strip {
  display: flex;
  gap: 16px;
  margin-top: clamp(26px, 4vw, 40px);
  padding: 4px var(--gutter) 26px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.page-home .case-strip:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: -3px;
}

.page-home .case-card {
  --sc: var(--spring);
  --sc-deep: var(--spring-deep);
  scroll-snap-align: start;
  flex: 0 0 min(280px, 76vw);
  padding: 20px 20px 24px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-left: 3px solid var(--sc);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: transform var(--t), background-color var(--t);
}

.page-home .case-card--spring { --sc: var(--spring); --sc-deep: var(--spring-deep); }
.page-home .case-card--summer { --sc: var(--summer); --sc-deep: var(--summer-deep); }
.page-home .case-card--autumn { --sc: var(--autumn); --sc-deep: var(--autumn-deep); }
.page-home .case-card--winter { --sc: var(--winter); --sc-deep: var(--winter-deep); }

.page-home .case-card:hover {
  transform: translateY(-3px);
  background: #fffdf7;
}

.page-home .case-card__meta {
  margin: 0;
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-home .case-card__num {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--sc-deep);
}

.page-home .case-card__scene {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-55);
}

.page-home .case-card__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink);
}

.page-home .cases__foot {
  margin-top: 6px;
}

/* 帮助与指南 */
.page-home .help__media {
  margin-top: clamp(24px, 3.5vw, 36px);
  border: 1px solid var(--line);
  background: var(--sand);
}

.page-home .help__media .media__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-home .help__cols {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-top: clamp(28px, 4vw, 44px);
}

.page-home .help__col {
  padding: 26px 22px;
  background: var(--paper);
  border: 1px solid var(--line-soft);
  border-top: 2px solid var(--spring);
}

.page-home .help__col--guide {
  border-top-color: var(--summer);
}

.page-home .help__title {
  margin: 10px 0 12px;
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 28px);
  font-weight: 700;
  line-height: 1.3;
}

.page-home .help__lead {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-70);
}

.page-home .help__list {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  border-top: 1px solid var(--line-soft);
}

.page-home .help__list li {
  position: relative;
  padding: 10px 0 10px 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-70);
  border-bottom: 1px solid var(--line-soft);
}

.page-home .help__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  width: 7px;
  height: 1px;
  background: var(--spring-deep);
}

.page-home .help__steps {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-home .help__steps li {
  display: flex;
  gap: 12px;
  align-items: baseline;
  padding: 9px 12px;
  background: var(--sand);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%);
}

.page-home .help__step-num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--summer-deep);
  flex: 0 0 auto;
}

.page-home .help__step-body {
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink-70);
}

.page-home .help__step-body strong {
  color: var(--ink);
  margin-right: 6px;
}

.page-home .help__link {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--ink);
  padding-bottom: 2px;
}

.page-home .help__link:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

.page-home .help__note {
  margin-top: clamp(24px, 3.5vw, 36px);
  max-width: 720px;
  color: var(--ink-70);
}

/* 资料库 */
.page-home .archive__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 48px);
  align-items: center;
}

.page-home .archive__media {
  border: 1px solid var(--line);
  background: var(--paper);
}

.page-home .archive__media .media__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-home .archive__text {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-70);
}

.page-home .archive__facts {
  margin: 22px 0 0;
  display: grid;
  gap: 2px;
  border-top: 1px solid var(--line);
}

.page-home .archive__fact {
  padding: 14px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-home .archive__fact dt {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  color: var(--winter-deep);
  margin-bottom: 6px;
}

.page-home .archive__fact dd {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--ink-70);
}

.page-home .archive__actions {
  margin-top: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* 行动块 */
.page-home .actions__head {
  max-width: 640px;
}

.page-home .actions__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-top: clamp(26px, 4vw, 40px);
}

.page-home .action-card {
  --ac: var(--summer);
  --ac-deep: var(--summer-deep);
  padding: 28px 24px 26px;
  background: var(--paper);
  border: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: transform var(--t);
}

.page-home .action-card--winter {
  --ac: var(--winter);
  --ac-deep: var(--winter-deep);
}

.page-home .action-card:hover {
  transform: translateY(-3px);
}

.page-home .action-card__tag {
  margin: 0;
  align-self: flex-start;
  padding: 4px 10px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ink);
  background: color-mix(in srgb, var(--ac) 34%, var(--paper));
}

.page-home .action-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(21px, 3vw, 27px);
  font-weight: 700;
  line-height: 1.35;
}

.page-home .action-card__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ink-70);
}

.page-home .action-card__prepare {
  list-style: none;
  margin: 4px 0 6px;
  padding: 14px 16px;
  background: var(--sand);
  display: grid;
  gap: 7px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
}

.page-home .action-card__prepare li {
  position: relative;
  padding-left: 16px;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--ink-70);
}

.page-home .action-card__prepare li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--ac-deep);
}

.page-home .action-card .btn {
  align-self: flex-start;
  margin-top: 4px;
}

/* 响应式 */
@media (min-width: 620px) {
  .page-home .stats__row {
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
  }

  .page-home .seasons__grid {
    grid-template-columns: 1fr 1fr;
  }

  .page-home .case-card {
    flex-basis: min(300px, 60vw);
  }
}

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

  .page-home .dial {
    position: absolute;
    right: -12px;
    bottom: -26px;
    width: 52%;
    margin: 0;
  }

  .page-home .seasons__grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-home .help__cols {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }

  .page-home .archive__grid {
    grid-template-columns: 5fr 7fr;
  }

  .page-home .actions__grid {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }
}

@media (min-width: 1180px) {
  .page-home .hero {
    padding-bottom: clamp(56px, 6vw, 88px);
  }

  .page-home .season-card {
    padding: 28px 24px 24px;
  }
}

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

  .page-home .season-card:hover,
  .page-home .case-card:hover,
  .page-home .action-card:hover {
    transform: none;
  }
}