.page-home {
  --home-rule: rgba(31, 26, 23, 0.14);
  --home-soft: rgba(31, 26, 23, 0.68);
  background: var(--sand);
  color: var(--ink);
  overflow-x: hidden;
}

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

.page-home .hero__shot img,
.page-home .hero__grain img,
.page-home .start__fig img,
.page-home .mcard__fig img,
.page-home .plateau__fig img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-home .bhead {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: clamp(23px, 4.4vw, 34px);
  line-height: 1.28;
  letter-spacing: -0.01em;
  margin: 10px 0 0;
  color: var(--ink);
}

.page-home .bhead--light {
  color: var(--sand);
}

.page-home .eyebrow--light {
  color: var(--gold-light);
}

/* ---------- 首屏 ---------- */
.page-home .hero {
  position: relative;
  padding: clamp(20px, 4vw, 36px) 0 clamp(30px, 5vw, 56px);
  background: linear-gradient(180deg, var(--mist) 0%, var(--sand) 76%);
  border-bottom: 1px solid var(--home-rule);
}

.page-home .hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(31, 26, 23, 0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(31, 26, 23, 0.05) 1px, transparent 1px);
  background-size: 68px 68px;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 70%);
  mask-image: linear-gradient(180deg, #000 0%, transparent 70%);
}

.page-home .hero .wrap {
  position: relative;
}

.page-home .hero__ctx {
  margin: 0 0 clamp(14px, 2.6vw, 24px);
}

.page-home .hero__top {
  display: grid;
  gap: clamp(22px, 4vw, 46px);
  align-items: start;
}

.page-home .hero__title {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(40px, 11vw, 92px);
  line-height: 0.98;
  letter-spacing: -0.015em;
  margin: 0 0 16px;
}

.page-home .hero__title small {
  display: block;
  width: fit-content;
  max-width: 100%;
  margin-top: 16px;
  padding-bottom: 9px;
  border-bottom: 2px solid var(--gold);
  font-family: var(--font-sans);
  font-size: clamp(11px, 2.6vw, 13px);
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--crimson);
}

.page-home .hero__intro {
  margin: 0;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.9;
  color: var(--home-soft);
}

.page-home .hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-home .hero__collage {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.page-home .hero__shot {
  position: relative;
  margin: 0;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 1px solid var(--gold);
  background: var(--crimson-deep);
}

.page-home .hero__badge {
  position: absolute;
  left: 0;
  top: 0;
  padding: 5px 12px;
  background: var(--gold);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
}

.page-home .hero__grain {
  display: none;
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border: 1px solid var(--home-rule);
}

.page-home .hero__grain::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(230, 199, 102, 0.42) 0%, transparent 58%);
}

.page-home .hero__panels {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.page-home .hero__panel {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-areas:
    "k go"
    "t t";
  gap: 4px 8px;
  padding: 13px 13px 15px;
  background: var(--mist);
  border: 1px solid var(--home-rule);
  border-left: 3px solid var(--gold);
  text-decoration: none;
  color: var(--ink);
  transition: transform 0.3s var(--ease-out), border-color 0.3s var(--ease-out);
}

.page-home .hero__panel--crimson {
  background: var(--crimson);
  border-color: var(--crimson);
  border-left-color: var(--gold-light);
}

.page-home .hero__panel-k {
  grid-area: k;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--crimson);
}

.page-home .hero__panel--crimson .hero__panel-k {
  color: var(--gold-light);
}

.page-home .hero__panel-go {
  grid-area: go;
  justify-self: end;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--gold);
}

.page-home .hero__panel-t {
  grid-area: t;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--home-soft);
}

.page-home .hero__panel--crimson .hero__panel-t {
  color: rgba(245, 239, 230, 0.85);
}

.page-home .hero__filterbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
  margin-top: clamp(24px, 4vw, 40px);
  padding-top: 16px;
  border-top: 1px solid var(--home-rule);
}

.page-home .hero__filter-label {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--stone);
}

.page-home .hero__filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-home .hero__filter-btn {
  font: inherit;
  font-size: 13px;
  letter-spacing: 0.04em;
  padding: 7px 15px;
  border-radius: 0;
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--home-rule);
  cursor: pointer;
  transition: background 0.25s var(--ease-out), color 0.25s var(--ease-out), border-color 0.25s var(--ease-out);
}

.page-home .hero__filter-btn:hover {
  border-color: var(--gold);
  color: var(--crimson);
}

.page-home .hero__filter-btn[aria-pressed="true"] {
  background: var(--crimson);
  border-color: var(--crimson);
  color: var(--sand);
}

.page-home .hero__count {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--stone);
}

.page-home .hero__slips {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-top: 16px;
}

.page-home .slip {
  position: relative;
  display: grid;
  gap: 6px;
  padding: 16px 16px 16px 18px;
  background: var(--mist);
  border: 1px solid var(--home-rule);
  text-decoration: none;
  color: var(--ink);
  transition: transform 0.3s var(--ease-out), border-color 0.3s var(--ease-out);
}

.page-home .slip::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 2px;
  height: 36px;
  background: var(--gold);
}

.page-home .slip:hover {
  transform: translateY(-2px);
  border-color: var(--gold);
}

.page-home .slip__k {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--blue);
}

.page-home .slip__t {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.55;
}

.page-home .slip__d {
  font-size: 13px;
  line-height: 1.7;
  color: var(--home-soft);
}

/* ---------- 第一次到访 ---------- */
.page-home .start {
  padding: clamp(36px, 6vw, 72px) 0;
  background: var(--mist);
  border-bottom: 1px solid var(--home-rule);
}

.page-home .start__head {
  max-width: 46em;
}

.page-home .start__intro {
  margin: 16px 0 0;
  max-width: 36em;
  font-size: 15px;
  line-height: 1.9;
  color: var(--home-soft);
}

.page-home .start__grid {
  display: grid;
  gap: 26px;
  margin-top: clamp(22px, 4vw, 38px);
}

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

.page-home .step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  padding: 18px 0;
  border-top: 1px solid var(--home-rule);
}

.page-home .step:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-home .step__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--gold);
  padding-top: 5px;
}

.page-home .step__t {
  margin: 0 0 6px;
  font-family: var(--font-sans);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
}

.page-home .step__d {
  margin: 0;
  max-width: 34em;
  font-size: 14px;
  line-height: 1.9;
  color: var(--home-soft);
}

.page-home .start__fig {
  margin: 0;
  border: 1px solid var(--home-rule);
  background: var(--sand);
}

.page-home .start__fig img {
  aspect-ratio: 12 / 7;
}

.page-home .start__fig figcaption {
  padding: 12px 14px;
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--stone);
  border-top: 1px solid var(--home-rule);
}

/* ---------- 动态 ---------- */
.page-home .news {
  padding: clamp(36px, 6vw, 72px) 0;
  background: var(--sand);
  border-bottom: 1px solid var(--home-rule);
}

.page-home .news__grid {
  display: grid;
  gap: 30px;
}

.page-home .news__intro {
  margin: 16px 0 0;
  max-width: 30em;
  font-size: 15px;
  line-height: 1.9;
  color: var(--home-soft);
}

.page-home .subscribe {
  margin-top: 22px;
  padding: 20px 18px 22px;
  background: var(--crimson);
  color: var(--sand);
  border-left: 3px solid var(--gold);
}

.page-home .subscribe__k {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--gold-light);
}

.page-home .subscribe__list {
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 9px;
  font-size: 13.5px;
  line-height: 1.7;
  color: rgba(245, 239, 230, 0.88);
}

.page-home .subscribe__list li {
  position: relative;
  padding-left: 16px;
}

.page-home .subscribe__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background: var(--gold-light);
  transform: rotate(45deg);
}

.page-home .timeline {
  list-style: none;
  margin: 0;
  padding: 0 0 0 22px;
  position: relative;
  border-left: 1px solid var(--rule-gold);
}

.page-home .timeline__item {
  position: relative;
  padding-bottom: 24px;
}

.page-home .timeline__item:last-child {
  padding-bottom: 0;
}

.page-home .timeline__item::before {
  content: "";
  position: absolute;
  left: -28px;
  top: 7px;
  width: 9px;
  height: 9px;
  background: var(--sand);
  border: 2px solid var(--gold);
  transform: rotate(45deg);
}

.page-home .timeline__meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 7px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--stone);
}

.page-home .timeline__t {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.6;
}

.page-home .timeline__t a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s var(--ease-out), color 0.25s var(--ease-out);
}

.page-home .timeline__t a:hover {
  color: var(--crimson);
  border-bottom-color: var(--gold);
}

.page-home .timeline__d {
  margin: 0;
  max-width: 34em;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--home-soft);
}

/* ---------- 会员中心 ---------- */
.page-home .member {
  padding: clamp(36px, 6vw, 72px) 0;
  background: var(--mist);
  border-bottom: 1px solid var(--home-rule);
}

.page-home .stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(20px, 3vw, 30px) 0 clamp(24px, 4vw, 36px);
  background: var(--home-rule);
  border: 1px solid var(--home-rule);
}

.page-home .stat {
  background: var(--mist);
  padding: 16px 14px;
}

.page-home .stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(21px, 3.6vw, 28px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-home .stat__num::after {
  content: "";
  display: block;
  width: 32px;
  height: 2px;
  margin-top: 8px;
  background: var(--gold);
}

.page-home .stat__label {
  display: block;
  margin-top: 8px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--stone);
}

.page-home .mcards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-home .mcard {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px;
  background: var(--sand);
  border: 1px solid var(--home-rule);
  border-top: 3px solid var(--gold);
}

.page-home .mcard__fig {
  margin: 0 0 4px;
  overflow: hidden;
  border: 1px solid var(--home-rule);
}

.page-home .mcard__fig img {
  aspect-ratio: 16 / 9;
}

.page-home .mcard__k {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--blue);
}

.page-home .mcard__t {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.55;
}

.page-home .mcard__d {
  margin: 0;
  flex: 1;
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--home-soft);
}

.page-home .mcard__go {
  align-self: flex-start;
  margin-top: 4px;
  font-size: 13px;
  font-weight: 600;
  color: var(--crimson);
  text-decoration: none;
  border-bottom: 1px solid var(--gold);
  padding-bottom: 2px;
}

.page-home .mcard__go:hover {
  color: var(--ink);
}

/* ---------- 换设备 ---------- */
.page-home .device {
  padding: clamp(36px, 6vw, 70px) 0;
  background: var(--crimson-deep);
  color: var(--sand);
}

.page-home .device__grid {
  display: grid;
  gap: 26px;
}

.page-home .device__intro {
  margin: 16px 0 22px;
  max-width: 32em;
  font-size: 14.5px;
  line-height: 1.9;
  color: rgba(245, 239, 230, 0.82);
}

.page-home .qa {
  border-top: 1px solid rgba(245, 239, 230, 0.22);
}

.page-home .qa:last-child {
  border-bottom: 1px solid rgba(245, 239, 230, 0.22);
}

.page-home .qa summary {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 15px 0;
  cursor: pointer;
  list-style: none;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--sand);
}

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

.page-home .qa summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  color: var(--gold-light);
}

.page-home .qa[open] summary::after {
  content: "–";
}

.page-home .qa__body {
  padding: 0 0 18px;
}

.page-home .qa__body p {
  margin: 0;
  max-width: 40em;
  font-size: 13.5px;
  line-height: 1.95;
  color: rgba(245, 239, 230, 0.82);
}

/* ---------- 高原 ---------- */
.page-home .plateau {
  padding: clamp(36px, 6vw, 74px) 0;
  background: var(--sand);
}

.page-home .plateau__grid {
  display: grid;
  gap: 24px;
}

.page-home .plateau__fig {
  margin: 0;
  position: relative;
  overflow: hidden;
  border-left: 3px solid var(--gold);
}

.page-home .plateau__fig img {
  aspect-ratio: 12 / 7;
}

.page-home .plateau__p {
  margin: 16px 0 0;
  max-width: 34em;
  font-size: 14.5px;
  line-height: 1.95;
  color: var(--home-soft);
}

.page-home .plateau__facts {
  display: grid;
  gap: 12px;
  margin: 24px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--home-rule);
}

.page-home .plateau__facts > div {
  display: grid;
  gap: 3px;
}

.page-home .plateau__facts dt {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--crimson);
}

.page-home .plateau__facts dd {
  margin: 0;
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--stone);
}

.page-home .plateau__link {
  margin: 22px 0 0;
  font-size: 14px;
}

.page-home .plateau__link a {
  color: var(--crimson);
  text-decoration: none;
  border-bottom: 1px solid var(--gold);
  padding-bottom: 2px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-home .hero__collage {
    grid-template-columns: 1fr 1fr;
  }

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

  .page-home .hero__grain {
    display: block;
    grid-column: 1;
  }

  .page-home .hero__panels {
    grid-column: 2;
    grid-template-columns: 1fr;
    align-content: start;
  }

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

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

@media (min-width: 760px) {
  .page-home .stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-home .mcards {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .page-home .mcards > :nth-child(1) {
    grid-column: span 4;
  }

  .page-home .mcards > :nth-child(2) {
    grid-column: span 2;
  }

  .page-home .mcards > :nth-child(3) {
    grid-column: span 2;
  }

  .page-home .mcards > :nth-child(4) {
    grid-column: span 4;
  }
}

@media (min-width: 900px) {
  .page-home .start__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    gap: clamp(26px, 4vw, 52px);
    align-items: start;
  }

  .page-home .news__grid {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
    gap: clamp(28px, 4vw, 56px);
  }

  .page-home .device__grid {
    grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.22fr);
    gap: clamp(28px, 4vw, 56px);
    align-items: start;
  }

  .page-home .plateau__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: clamp(26px, 4vw, 52px);
    align-items: center;
  }
}

@media (min-width: 1000px) {
  .page-home .hero__top {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
    gap: clamp(28px, 4vw, 54px);
  }

  .page-home .hero__slips {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .slip,
  .page-home .hero__panel,
  .page-home .hero__filter-btn,
  .page-home .timeline__t a {
    transition: none;
  }

  .page-home .slip:hover {
    transform: none;
  }
}