/* =========================================================
   易丰娱乐会馆 · 会馆品牌页
   作用域：.page-about
   ========================================================= */

.page-about {
  --ab-axis: 6.5rem;
  --ab-gold-line: rgba(201, 162, 39, 0.38);
  --ab-soft-rule: rgba(15, 46, 34, 0.12);
  background: var(--paper);
  color: var(--ink);
}

/* ---------- 篇首 ---------- */
.page-about .about-mast {
  position: relative;
  padding: clamp(1.4rem, 4vw, 2.4rem) 0 clamp(2.2rem, 5vw, 3.6rem);
  border-bottom: 1px solid var(--rule);
  overflow: hidden;
}

.page-about .about-mast::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: clamp(4px, 0.55vw, 7px);
  height: 100%;
  background: linear-gradient(180deg, var(--gold) 0%, var(--coral) 100%);
}

.page-about .about-mast .breadcrumb {
  margin: 0 0 clamp(1.4rem, 3.5vw, 2.4rem);
}

.page-about .mast-grid {
  display: grid;
  gap: clamp(1.1rem, 3vw, 1.8rem);
}

.page-about .mast-lead .coord {
  margin: 0 0 0.85rem;
  font-size: 0.75rem;
  letter-spacing: 0.18em;
}

.page-about .mast-lead h1 {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(1.9rem, 5.2vw, 3.55rem);
  line-height: 1.14;
  letter-spacing: -0.015em;
  color: var(--ink-green);
  text-wrap: balance;
}

.page-about .mast-lede {
  margin: 0;
  max-width: 46ch;
  font-size: clamp(0.97rem, 1.5vw, 1.06rem);
  line-height: 1.88;
  color: var(--ink);
}

@media (min-width: 920px) {
  .page-about .mast-grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
    align-items: end;
    gap: clamp(2rem, 5vw, 4rem);
  }
}

.page-about .mast-stats {
  list-style: none;
  margin: clamp(1.7rem, 4vw, 2.7rem) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}

.page-about .mast-stats li {
  background: var(--paper-white);
  padding: 0.95rem 1rem 1.1rem;
}

.page-about .mast-stats strong {
  display: block;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(1.3rem, 3vw, 1.7rem);
  line-height: 1.1;
  letter-spacing: -0.015em;
  color: var(--ink-green);
}

.page-about .mast-stats span {
  display: block;
  margin-top: 0.42rem;
  font-size: 0.78rem;
  letter-spacing: 0.045em;
  color: var(--grey);
}

@media (min-width: 780px) {
  .page-about .mast-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 章节通用 ---------- */
.page-about .about-section {
  padding: clamp(2.5rem, 6vw, 4.4rem) 0;
}

.page-about .about-section + .about-section {
  border-top: 1px dashed var(--ab-soft-rule);
}

.page-about .about-section .section-head {
  margin-bottom: clamp(1.6rem, 4vw, 2.6rem);
}

/* ---------- 品牌起源 ---------- */
.page-about .origin-grid {
  display: grid;
  gap: clamp(1.6rem, 4vw, 2.6rem);
}

.page-about .origin-text p {
  margin: 0 0 1.05rem;
  line-height: 1.9;
  color: var(--ink);
}

.page-about .origin-text p:last-of-type {
  margin-bottom: 0;
}

.page-about .city-list {
  list-style: none;
  margin: 1.4rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.page-about .city-list li {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  padding: 0.35rem 0.72rem;
  border: 1px solid var(--ab-gold-line);
  background: var(--paper-white);
  color: var(--ink-green);
}

.page-about .origin-figure {
  margin: 0;
}

@media (min-width: 880px) {
  .page-about .origin-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: clamp(2.2rem, 5vw, 4rem);
    align-items: start;
  }
}

/* ---------- 发展时间线 ---------- */
.page-about .tl {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.page-about .tl::before {
  content: "";
  position: absolute;
  top: 0.5rem;
  bottom: 0.5rem;
  left: 0.7rem;
  width: 2px;
  background: linear-gradient(180deg, var(--gold-soft) 0%, var(--gold) 38%, rgba(201, 162, 39, 0.1) 100%);
}

.page-about .tl-item {
  position: relative;
  padding: 0 0 1.9rem 2.5rem;
}

.page-about .tl-item:last-child {
  padding-bottom: 0;
}

.page-about .tl-item::before {
  content: "";
  position: absolute;
  top: 0.55rem;
  left: 0.7rem;
  width: 13px;
  height: 13px;
  margin-left: -6.5px;
  border-radius: 50%;
  background: var(--paper);
  border: 2px solid var(--gold);
  box-shadow: 0 0 0 4px var(--paper);
  transition: background-color 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease;
  z-index: 1;
}

.page-about .tl-item.is-visible::before {
  background: var(--gold);
  border-color: var(--gold);
  box-shadow: 0 0 0 4px var(--paper), 0 0 0 7px rgba(201, 162, 39, 0.22);
}

.page-about .tl-num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(1.4rem, 4.6vw, 1.95rem);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--grey);
  transition: color 0.4s ease;
}

.page-about .tl-item.is-visible .tl-num {
  color: var(--ink-green);
}

.page-about .tl-title {
  margin: 0 0 0.5rem;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.04rem, 2.4vw, 1.28rem);
  line-height: 1.45;
  color: var(--ink-green);
}

.page-about .tl-body p {
  margin: 0;
  max-width: 58ch;
  line-height: 1.85;
  color: var(--ink);
}

@media (min-width: 900px) {
  .page-about .tl::before {
    left: var(--ab-axis);
  }

  .page-about .tl-item {
    display: grid;
    grid-template-columns: var(--ab-axis) minmax(0, 1fr);
    gap: clamp(1.6rem, 4vw, 3rem);
    padding: 0 0 2.5rem 0;
  }

  .page-about .tl-item:last-child {
    padding-bottom: 0;
  }

  .page-about .tl-item::before {
    top: 0.85rem;
    left: var(--ab-axis);
    margin-left: -6.5px;
  }

  .page-about .tl-year {
    position: sticky;
    top: 6.5rem;
    align-self: start;
  }
}

/* ---------- 五大体验模块 ---------- */
.page-about .exp-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1rem;
}

.page-about .exp {
  display: flex;
  flex-direction: column;
  background: var(--paper-white);
  border: 1px solid var(--rule);
  box-shadow: var(--shadow-plate);
  overflow: hidden;
  transition: box-shadow 0.3s ease, transform 0.3s ease, border-color 0.3s ease;
}

.page-about .exp:hover {
  box-shadow: var(--shadow-lift);
  border-color: var(--ab-gold-line);
  transform: translateY(-3px);
}

.page-about .exp-media {
  margin: 0;
  background: var(--ink-green);
}

.page-about .exp-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 8 / 5;
  object-fit: cover;
}

.page-about .exp-body {
  padding: 1.05rem 1.15rem 1.3rem;
  flex: 1;
}

.page-about .exp-no {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: var(--gold);
  margin-bottom: 0.5rem;
}

.page-about .exp-title {
  margin: 0 0 0.45rem;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.08rem;
  line-height: 1.4;
  color: var(--ink-green);
}

.page-about .exp-desc {
  margin: 0;
  font-size: 0.91rem;
  line-height: 1.82;
  color: var(--ink);
}

@media (min-width: 880px) {
  .page-about .exp-grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 1.25rem;
  }

  .page-about .exp--pkg {
    grid-column: span 3;
  }

  .page-about .exp--show {
    grid-column: span 3;
  }

  .page-about .exp--lounge,
  .page-about .exp--game,
  .page-about .exp--member {
    grid-column: span 2;
  }
}

/* ---------- 会员等级 ---------- */
.page-about .tiers {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem;
}

.page-about .tier {
  position: relative;
  padding: 1.15rem 1.05rem 1.3rem;
  background: var(--paper-white);
  border: 1px solid var(--rule);
  border-top: 3px solid var(--gold);
  box-shadow: var(--shadow-plate);
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.page-about .tier:hover {
  box-shadow: var(--shadow-lift);
  transform: translateY(-3px);
}

.page-about .tier:focus-visible {
  outline: 3px solid var(--coral);
  outline-offset: 3px;
  box-shadow: var(--shadow-lift);
}

.page-about .tier--a {
  border-top-color: var(--gold-soft);
}

.page-about .tier--b {
  border-top-color: var(--gold);
}

.page-about .tier--c {
  border-top-color: var(--ink-green-2);
}

.page-about .tier--d {
  border-top-color: var(--coral);
}

.page-about .tier-seal {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  margin-bottom: 0.8rem;
  border: 2px solid var(--gold);
  border-radius: 4px;
  background: rgba(232, 212, 139, 0.24);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--ink-green);
}

.page-about .tier--d .tier-seal {
  border-color: var(--coral);
  background: rgba(232, 115, 74, 0.14);
}

.page-about .tier-name {
  margin: 0 0 0.3rem;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 1.24rem;
  letter-spacing: 0.06em;
  color: var(--ink-green);
}

.page-about .tier-line {
  margin: 0;
  font-size: 0.79rem;
  letter-spacing: 0.03em;
  color: var(--grey);
}

.page-about .tier-pop {
  position: absolute;
  left: 0;
  right: 0;
  bottom: calc(100% + 0.6rem);
  z-index: 6;
  padding: 0.85rem 0.9rem 0.95rem;
  background: var(--ink-green);
  color: var(--paper-white);
  box-shadow: 0 22px 42px -22px rgba(15, 46, 34, 0.72);
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
}

.page-about .tier-pop::after {
  content: "";
  position: absolute;
  left: 1.5rem;
  bottom: -6px;
  width: 12px;
  height: 12px;
  background: var(--ink-green);
  transform: rotate(45deg);
}

.page-about .tier:hover .tier-pop,
.page-about .tier:focus-visible .tier-pop {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.page-about .tier-pop-title {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 0.86rem;
  letter-spacing: 0.08em;
  color: var(--gold-soft);
}

.page-about .tier-pop ul {
  list-style: none;
  margin: 0.45rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.26rem;
  font-size: 0.79rem;
  line-height: 1.62;
}

.page-about .tier-pop li {
  position: relative;
  padding-left: 0.85rem;
}

.page-about .tier-pop li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 5px;
  height: 5px;
  background: var(--gold);
}

.page-about .tiers-note {
  margin: clamp(1.5rem, 3.5vw, 2.2rem) 0 0;
  padding-left: 1rem;
  border-left: 3px solid var(--gold);
  font-size: 0.9rem;
  line-height: 1.85;
  color: var(--grey);
}

.page-about .tiers-note a {
  color: var(--ink-green);
  text-decoration: underline;
  text-decoration-color: var(--ab-gold-line);
  text-underline-offset: 0.22em;
}

.page-about .tiers-note a:hover {
  color: var(--coral);
}

@media (min-width: 800px) {
  .page-about .tiers {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1.15rem;
  }
}

/* ---------- 团队与服务 ---------- */
.page-about .team-grid {
  display: grid;
  gap: clamp(1.6rem, 4vw, 2.6rem);
}

.page-about .team-figure {
  margin: 0;
}

.page-about .team-copy p {
  margin: 0 0 1.05rem;
  line-height: 1.9;
  color: var(--ink);
}

.page-about .team-facts {
  list-style: none;
  margin: 1.4rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}

.page-about .team-facts li {
  background: var(--paper-white);
  padding: 0.9rem 1rem 1rem;
}

.page-about .team-facts strong {
  display: block;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 1.02rem;
  line-height: 1.2;
  color: var(--ink-green);
  letter-spacing: -0.01em;
}

.page-about .team-facts span {
  display: block;
  margin-top: 0.38rem;
  font-size: 0.78rem;
  color: var(--grey);
}

@media (min-width: 880px) {
  .page-about .team-grid {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    gap: clamp(2.2rem, 5vw, 3.8rem);
    align-items: start;
  }
}

/* ---------- 合作与荣誉 ---------- */
.page-about .partner-grid {
  display: grid;
  gap: 1.2rem;
}

.page-about .partner-block {
  padding: clamp(1.3rem, 3vw, 1.9rem);
  background: var(--paper-white);
  border: 1px solid var(--rule);
  box-shadow: var(--shadow-plate);
}

.page-about .partner-block--dark {
  background: linear-gradient(160deg, var(--ink-green-2) 0%, var(--ink-green) 100%);
  border-color: transparent;
  color: var(--paper-white);
}

.page-about .partner-title {
  margin: 0 0 0.85rem;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.14rem;
  letter-spacing: 0.04em;
  color: var(--ink-green);
}

.page-about .partner-block--dark .partner-title {
  color: var(--gold-soft);
}

.page-about .partner-text {
  margin: 0 0 0.9rem;
  font-size: 0.92rem;
  line-height: 1.85;
}

.page-about .partner-block--dark .partner-text {
  color: rgba(251, 248, 241, 0.82);
}

.page-about .partner-text:last-child {
  margin-bottom: 0;
}

.page-about .partner-text a {
  color: var(--gold-soft);
  text-decoration: underline;
  text-underline-offset: 0.22em;
}

.page-about .partner-text a:hover {
  color: var(--coral);
}

.page-about .partner-tags {
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.page-about .partner-tags li {
  font-family: var(--font-mono);
  font-size: 0.73rem;
  letter-spacing: 0.1em;
  padding: 0.28rem 0.62rem;
  border: 1px solid rgba(232, 212, 139, 0.45);
  color: var(--gold-soft);
}

.page-about .honor-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.05rem;
}

.page-about .honor-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.9rem;
  padding-top: 1.05rem;
  border-top: 1px dashed var(--ab-soft-rule);
}

.page-about .honor-list li:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-about .honor-year {
  font-family: var(--font-mono);
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--coral);
  letter-spacing: -0.01em;
}

.page-about .honor-list strong {
  display: block;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 0.96rem;
  line-height: 1.55;
  color: var(--ink-green);
}

.page-about .honor-list p {
  margin: 0.35rem 0 0;
  font-size: 0.86rem;
  line-height: 1.75;
  color: var(--grey);
}

@media (min-width: 820px) {
  .page-about .partner-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 1.4rem;
  }
}

/* ---------- 收束引导 ---------- */
.page-about .about-cta {
  background: var(--ink-green);
  padding: clamp(2.3rem, 6vw, 3.8rem) 0;
  color: var(--paper-white);
}

.page-about .cta-inner {
  display: grid;
  gap: clamp(1.4rem, 3.5vw, 2.4rem);
}

.page-about .cta-title {
  margin: 0 0 0.7rem;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(1.3rem, 3.4vw, 1.85rem);
  line-height: 1.35;
  color: var(--gold-soft);
}

.page-about .cta-text {
  margin: 0;
  max-width: 52ch;
  font-size: 0.94rem;
  line-height: 1.85;
  color: rgba(251, 248, 241, 0.8);
}

.page-about .cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

@media (min-width: 860px) {
  .page-about .cta-inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: clamp(2rem, 5vw, 3.5rem);
  }

  .page-about .cta-actions {
    justify-content: flex-end;
  }
}

/* ---------- 交互降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-about .exp,
  .page-about .tier,
  .page-about .tl-item::before,
  .page-about .tl-num,
  .page-about .tier-pop {
    transition: none;
  }

  .page-about .exp:hover,
  .page-about .tier:hover {
    transform: none;
  }
}