.page-about {
  --about-rule: rgba(11, 27, 58, 0.14);
  --about-rule-soft: rgba(11, 27, 58, 0.08);
  --about-night: linear-gradient(158deg, #0B1B3A 0%, #132A55 52%, #075E43 132%);
  --about-paper-shadow: 0 1px 0 rgba(11, 27, 58, 0.06), 0 18px 36px -26px rgba(11, 27, 58, 0.5);
  background-color: var(--c-paper);
  color: var(--c-night);
}

.page-about .eyebrow {
  color: var(--c-green-deep);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  margin: 0 0 10px;
}

.page-about .section-title {
  font-size: clamp(25px, 3.4vw, 42px);
  line-height: 1.16;
  font-weight: 900;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--c-night);
}

.page-about .lede {
  color: var(--c-slate);
  font-size: clamp(16px, 1vw + 14px, 18px);
  line-height: 1.72;
  margin: 16px 0 0;
}

.page-about .prose {
  color: var(--c-slate);
  font-size: 16px;
  line-height: 1.75;
  margin: 16px 0 0;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  background: var(--about-night);
  color: var(--c-paper);
  border-bottom: 3px solid var(--c-orange);
  padding: clamp(22px, 4.5vw, 46px) 0 clamp(30px, 5vw, 60px);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(110% 82% at 6% 0%, rgba(14, 143, 90, 0.42), transparent 60%),
    radial-gradient(78% 70% at 100% 104%, rgba(240, 90, 40, 0.24), transparent 58%),
    repeating-linear-gradient(90deg, rgba(247, 244, 236, 0.055) 0 1px, transparent 1px 92px);
}

.page-about .about-hero .wrap {
  position: relative;
  z-index: 1;
}

.page-about .about-hero .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0 0 clamp(16px, 3vw, 28px);
  padding: 0;
  font-size: 13px;
  color: rgba(247, 244, 236, 0.66);
}

.page-about .about-hero .breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  opacity: 0.5;
}

.page-about .about-hero .breadcrumb a {
  color: rgba(247, 244, 236, 0.94);
  text-decoration: none;
  border-bottom: 1px solid rgba(247, 244, 236, 0.35);
  padding-bottom: 1px;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-about .about-hero .breadcrumb a:hover,
.page-about .about-hero .breadcrumb a:focus-visible {
  color: var(--c-orange-soft);
  border-color: var(--c-orange-soft);
}

.page-about .about-hero-inner {
  display: grid;
  gap: clamp(20px, 4vw, 42px);
}

.page-about .about-hero .eyebrow {
  color: var(--c-orange-soft);
  margin-bottom: 14px;
}

.page-about .about-hero h1 {
  margin: 0;
  color: #fff;
  font-size: clamp(30px, 6.6vw, 66px);
  line-height: 1.08;
  font-weight: 900;
  letter-spacing: -0.02em;
}

.page-about .about-hero .lede {
  color: rgba(247, 244, 236, 0.84);
  margin-top: 0;
}

.page-about .about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(18px, 3vw, 26px);
}

.page-about .about-hero .btn--ghost {
  color: var(--c-paper);
  border-color: rgba(247, 244, 236, 0.45);
  background: rgba(247, 244, 236, 0.06);
}

.page-about .about-hero .btn--ghost:hover,
.page-about .about-hero .btn--ghost:focus-visible {
  border-color: var(--c-orange-soft);
  color: #fff;
}

.page-about .about-ruler {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  height: 24px;
  margin-top: clamp(26px, 5vw, 48px);
}

.page-about .about-ruler .ruler-tick {
  flex: 1 1 0;
  height: 7px;
  border-radius: 2px;
  background: rgba(247, 244, 236, 0.2);
}

.page-about .about-ruler .ruler-tick--hot {
  height: 20px;
  background: var(--c-orange);
}

/* ---------- 分屏：年表 + 档案 ---------- */
.page-about .about-split {
  display: grid;
  gap: clamp(28px, 5vw, 52px);
}

.page-about .season-line {
  list-style: none;
  margin: clamp(22px, 4vw, 34px) 0 0;
  padding: 0 0 0 26px;
  border-left: 2px solid var(--about-rule);
  display: grid;
  gap: clamp(18px, 3vw, 28px);
}

.page-about .season-node {
  position: relative;
}

.page-about .season-node::before {
  content: "";
  position: absolute;
  top: 4px;
  left: -35px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--c-paper);
  border: 3px solid var(--c-green);
  box-sizing: content-box;
}

.page-about .season-node--now::before {
  border-color: var(--c-orange);
  box-shadow: 0 0 0 4px rgba(240, 90, 40, 0.16);
}

.page-about .season-year {
  font-family: var(--font-mono);
  font-size: clamp(19px, 2.2vw, 26px);
  font-weight: 700;
  line-height: 1;
  color: var(--c-green-deep);
  margin: 0 0 6px;
}

.page-about .season-node--now .season-year {
  color: var(--c-orange);
}

.page-about .season-head {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 800;
  color: var(--c-night);
}

.page-about .season-desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.68;
  color: var(--c-slate);
}

.page-about .about-col--files {
  display: grid;
  gap: clamp(20px, 3vw, 30px);
  align-content: start;
}

.page-about .file-card {
  background: #fff;
  border: 1px solid var(--about-rule-soft);
  border-top: 4px solid var(--c-green);
  border-radius: var(--radius);
  padding: clamp(22px, 3vw, 30px);
  box-shadow:
    5px 5px 0 rgba(201, 209, 217, 0.5),
    10px 10px 0 rgba(201, 209, 217, 0.22),
    var(--about-paper-shadow);
}

.page-about .file-card .card-meta {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-slate);
  margin: 0;
}

.page-about .file-card .card-title {
  margin: 10px 0 0;
  font-size: clamp(19px, 2vw, 23px);
  font-weight: 900;
  color: var(--c-night);
}

.page-about .file-stats {
  display: grid;
  gap: 16px;
  margin-top: 20px;
}

.page-about .file-stat {
  border-left: 3px solid var(--c-orange);
  padding-left: 12px;
}

.page-about .file-stat .stat-value {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(22px, 2.6vw, 30px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--c-night);
}

.page-about .file-stat .stat-label {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  color: var(--c-slate);
}

/* ---------- 图片容器 ---------- */
.page-about .about-figure {
  margin: 0;
}

.page-about .about-figure img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

.page-about .about-figure .media-caption {
  font-size: 13px;
  line-height: 1.6;
  color: var(--c-slate);
}

/* ---------- 编辑流程 ---------- */
.page-about .section--band .section-title {
  color: #fff;
}

.page-about .section--band .eyebrow {
  color: var(--c-orange-soft);
}

.page-about .section--band .lede,
.page-about .section--band .prose {
  color: rgba(247, 244, 236, 0.82);
}

.page-about .about-flow {
  list-style: none;
  display: grid;
  gap: clamp(14px, 2.6vw, 22px);
  margin: clamp(24px, 4vw, 38px) 0 0;
  padding: 0;
}

.page-about .flow-step {
  padding: clamp(18px, 2.6vw, 24px);
  border: 1px solid rgba(247, 244, 236, 0.16);
  border-radius: var(--radius-sm);
  background: rgba(247, 244, 236, 0.05);
}

.page-about .flow-num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--c-orange-soft);
}

.page-about .flow-title {
  margin: 8px 0 8px;
  font-size: 18px;
  font-weight: 800;
  color: #fff;
}

.page-about .flow-step p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: rgba(247, 244, 236, 0.76);
}

/* ---------- 教练履历 ---------- */
.page-about .coach-grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  align-items: center;
}

.page-about .coach-list {
  list-style: none;
  display: grid;
  gap: 14px;
  margin: clamp(18px, 3vw, 26px) 0 0;
  padding: 0;
}

.page-about .coach-list li {
  display: grid;
  gap: 5px;
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid var(--about-rule-soft);
  border-left: 3px solid var(--c-green);
  border-radius: var(--radius-sm);
}

.page-about .coach-list strong {
  font-size: 15px;
  font-weight: 800;
  color: var(--c-green-deep);
}

.page-about .coach-list span {
  font-size: 14.5px;
  line-height: 1.68;
  color: var(--c-slate);
}

/* ---------- 季票服务 ---------- */
.page-about .ticket-grid {
  list-style: none;
  display: grid;
  gap: clamp(14px, 2.4vw, 20px);
  margin: clamp(22px, 4vw, 34px) 0 0;
  padding: 0;
}

.page-about .ticket-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: #fff;
  border: 1px solid var(--about-rule-soft);
  border-radius: var(--radius);
  padding: clamp(18px, 2.6vw, 24px);
  box-shadow: var(--about-paper-shadow);
}

.page-about .ticket-card .tag {
  align-self: flex-start;
}

.page-about .ticket-card .card-title {
  margin: 0;
  font-size: 17px;
  font-weight: 800;
  color: var(--c-night);
}

.page-about .ticket-card p {
  margin: 0;
  flex: 1 1 auto;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--c-slate);
}

.page-about .support-strip {
  display: grid;
  gap: 18px;
  margin-top: clamp(22px, 4vw, 34px);
  padding: clamp(20px, 3vw, 28px);
  border: 1px solid var(--about-rule-soft);
  border-radius: var(--radius);
  background: linear-gradient(120deg, rgba(14, 143, 90, 0.09), rgba(43, 179, 192, 0.07) 58%, rgba(240, 90, 40, 0.09));
}

.page-about .support-item {
  display: grid;
  gap: 6px;
  align-content: start;
}

.page-about .support-item .contact-key {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--c-green-deep);
}

.page-about .support-item .contact-value {
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--c-night);
  word-break: break-word;
}

.page-about .contact-value--mono {
  font-family: var(--font-mono);
}

.page-about .support-note {
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--c-slate);
}

/* ---------- 团队与节奏 ---------- */
.page-about .team-grid {
  display: grid;
  gap: clamp(26px, 4vw, 46px);
  align-items: center;
}

.page-about .role-grid {
  list-style: none;
  display: grid;
  gap: 16px;
  margin: clamp(18px, 3vw, 26px) 0 0;
  padding: 0;
}

.page-about .role-item {
  border-top: 3px solid var(--c-green);
  padding-top: 12px;
}

.page-about .role-item:nth-child(2) {
  border-top-color: var(--c-orange);
}

.page-about .role-item:nth-child(3) {
  border-top-color: var(--c-cyan);
}

.page-about .role-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(24px, 3vw, 30px);
  font-weight: 700;
  line-height: 1;
  color: var(--c-night);
}

.page-about .role-name {
  display: block;
  margin-top: 6px;
  font-size: 14px;
  color: var(--c-slate);
}

.page-about .team-note {
  margin: clamp(16px, 3vw, 24px) 0 0;
  padding: 14px 16px;
  border-left: 3px solid var(--c-cyan);
  background: rgba(43, 179, 192, 0.07);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--c-slate);
}

/* ---------- 合作生态 ---------- */
.page-about .partner-grid {
  list-style: none;
  display: grid;
  gap: clamp(16px, 2.8vw, 24px);
  margin: clamp(24px, 4vw, 36px) 0 0;
  padding: 0;
}

.page-about .partner-card {
  padding: clamp(20px, 3vw, 28px);
  background: var(--c-paper);
  border: 1px solid var(--about-rule);
  border-radius: var(--radius);
}

.page-about .partner-card .tag {
  display: inline-block;
}

.page-about .partner-num {
  margin: 14px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 700;
  line-height: 1;
  color: var(--c-green-deep);
}

.page-about .partner-desc {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--c-slate);
}

.page-about .partner-note {
  margin-top: clamp(24px, 4vw, 36px);
  padding-top: clamp(20px, 3vw, 28px);
  border-top: 1px solid var(--about-rule);
  display: grid;
  gap: 18px;
  justify-items: start;
}

.page-about .partner-note .prose {
  margin-top: 0;
}

/* ---------- 收尾 ---------- */
.page-about .about-close-inner {
  display: grid;
  gap: clamp(22px, 4vw, 36px);
  align-items: center;
}

.page-about .about-close .section-title {
  color: #fff;
}

.page-about .about-close .lede {
  color: rgba(247, 244, 236, 0.82);
}

.page-about .about-close .btn--ghost {
  color: var(--c-paper);
  border-color: rgba(247, 244, 236, 0.45);
  background: rgba(247, 244, 236, 0.06);
}

.page-about .about-close .btn--ghost:hover,
.page-about .about-close .btn--ghost:focus-visible {
  border-color: var(--c-orange-soft);
  color: #fff;
}

.page-about .about-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 断点 ---------- */
@media (min-width: 520px) {
  .page-about .file-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
  }

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

@media (min-width: 700px) {
  .page-about .ticket-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 760px) {
  .page-about .about-flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .support-strip {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-about .about-hero-inner {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: end;
  }

  .page-about .about-close-inner {
    grid-template-columns: minmax(0, 1fr) auto;
  }
}

@media (min-width: 940px) {
  .page-about .coach-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 440px);
  }

  .page-about .team-grid {
    grid-template-columns: minmax(0, 460px) minmax(0, 1fr);
  }
}

@media (min-width: 1000px) {
  .page-about .about-split {
    grid-template-columns: minmax(0, 1.05fr) minmax(300px, 0.95fr);
    align-items: start;
  }
}

@media (min-width: 1080px) {
  .page-about .about-flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-about .about-hero .breadcrumb a,
  .page-about .about-hero .btn,
  .page-about .about-close .btn {
    transition: none;
  }
}