/* ============================================================
   资质体系 /certification/ —— 页面专属样式
   全部选择器限定在 .page-certification 作用域内
   ============================================================ */

.page-certification {
  --cert-tick: var(--tick-step);
  --cert-node-gap: var(--space-2);
  background: var(--color-surface);
  color: var(--color-ink);
}

.page-certification p {
  margin: 0;
}

/* ------------------------------------------------------------
   首屏
   ------------------------------------------------------------ */
.page-certification .cert-hero {
  padding-top: var(--space-4);
  padding-bottom: var(--space-6);
  background: var(--color-surface);
}

.page-certification .cert-hero .breadcrumb {
  margin-bottom: var(--space-6);
}

.page-certification .cert-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-4);
  align-items: end;
  padding-bottom: var(--space-6);
}

.page-certification .cert-hero__lead {
  min-width: 0;
}

.page-certification .cert-hero__title {
  margin: var(--space-2) 0 var(--space-3);
  font-family: var(--font-heading);
  font-size: var(--text-display);
  font-weight: var(--weight-heading);
  line-height: 1.06;
  letter-spacing: -0.012em;
  color: var(--color-ink);
  max-width: 15ch;
}

.page-certification .cert-hero__lede {
  font-family: var(--font-serif);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
  max-width: var(--measure);
}

.page-certification .rule-index {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--color-accent);
}

/* 三组大字数字 */
.page-certification .cert-figures {
  list-style: none;
  margin: 0;
  padding: var(--space-3) 0 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-2);
  border-top: var(--border-thick) solid var(--color-primary);
  min-width: 0;
}

.page-certification .cert-figures__item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.page-certification .cert-figures__item .figure-lg {
  font-family: var(--font-mono);
  color: var(--color-accent);
  line-height: 0.94;
  letter-spacing: -0.03em;
}

.page-certification .cert-figures__k {
  font-family: var(--font-heading);
  font-size: var(--text-xs);
  line-height: 1.4;
  color: var(--color-ink-muted);
  letter-spacing: 0.04em;
}

/* 三段式横向时间刻度带 */
.page-certification .phase-scale {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-3);
  align-items: stretch;
  padding-top: var(--space-3);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-certification .phase-scale__vlabel {
  writing-mode: vertical-rl;
  text-orientation: upright;
  align-self: start;
  font-family: var(--font-heading);
  font-size: var(--text-xs);
  letter-spacing: 0.34em;
  color: var(--color-ink-muted);
  padding-top: 2px;
}

.page-certification .phase-scale__track {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
}

.page-certification .phase-seg {
  position: relative;
  padding: var(--space-3) 0;
  border-top: var(--border-thin) solid var(--color-line);
}

.page-certification .phase-seg:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-certification .phase-seg__link {
  display: grid;
  gap: 2px;
  text-decoration: none;
  color: inherit;
}

.page-certification .phase-seg__range {
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  color: var(--color-ink-muted);
}

.page-certification .phase-seg__name {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
  transition: color 180ms ease;
}

.page-certification .phase-seg__bar {
  display: block;
  height: 14px;
  margin-top: var(--space-1);
  border-bottom: var(--border-thin) solid var(--color-primary);
  background-image: repeating-linear-gradient(
    90deg,
    var(--color-line) 0,
    var(--color-line) 1px,
    transparent 1px,
    transparent var(--cert-tick)
  );
  transition: border-color 180ms ease;
}

.page-certification .phase-seg__link:hover .phase-seg__name,
.page-certification .phase-seg__link:focus-visible .phase-seg__name {
  color: var(--color-accent);
}

.page-certification .phase-seg__link:hover .phase-seg__bar,
.page-certification .phase-seg__link:focus-visible .phase-seg__bar {
  border-bottom-color: var(--color-accent);
}

/* 首屏宽幅图 */
.page-certification .cert-hero__media {
  margin: var(--space-6) 0 0;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: var(--color-surface-deep);
}

.page-certification .cert-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 7;
  object-fit: cover;
}

/* ------------------------------------------------------------
   阶段通用
   ------------------------------------------------------------ */
.page-certification .cert-phase {
  padding-block: var(--section-y);
}

.page-certification .cert-phase--start {
  background: var(--color-surface);
}

.page-certification .cert-phase--expand {
  background: var(--color-surface-alt);
}

.page-certification .cert-phase__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-2);
  align-items: start;
  margin-bottom: var(--space-6);
}

.page-certification .section-marker {
  writing-mode: vertical-rl;
  text-orientation: upright;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.28em;
  color: var(--color-ink-muted);
  transition: color 200ms ease;
}

.page-certification .section-marker[data-active] {
  color: var(--color-accent);
}

.page-certification .cert-phase__intro {
  min-width: 0;
}

.page-certification .cert-phase__intro h2 {
  margin: var(--space-2) 0 var(--space-3);
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
  max-width: 24ch;
}

.page-certification .cert-phase__lede {
  font-family: var(--font-serif);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
  max-width: var(--measure);
}

.page-certification .cert-phase__step {
  margin-top: var(--space-6);
  padding-top: var(--space-2);
  border-top: var(--border-thin) solid var(--color-line);
  font-family: var(--font-heading);
  font-size: var(--text-sm);
}

.page-certification .cert-phase__step a {
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: var(--border-thin) solid var(--color-line);
  padding-bottom: 2px;
  transition: color 180ms ease, border-color 180ms ease;
}

.page-certification .cert-phase__step a:hover,
.page-certification .cert-phase__step a:focus-visible {
  color: var(--color-focus);
  border-bottom-color: var(--color-focus);
}

/* ------------------------------------------------------------
   节点列表
   ------------------------------------------------------------ */
.page-certification .tl-list {
  list-style: none;
  margin: 0;
  padding: 0;
  min-width: 0;
}

.page-certification .tl-node {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-2);
  padding-block: var(--space-3);
  border-top: var(--border-thin) solid var(--color-line);
  min-width: 0;
}

.page-certification .tl-node:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-certification .tl-node__idx {
  display: block;
  min-width: 2.2em;
  font-size: var(--text-sm);
  line-height: 1.5;
  letter-spacing: 0.1em;
  color: var(--color-ink-muted);
  padding-top: 0.28em;
}

.page-certification .tl-node__body {
  min-width: 0;
}

.page-certification .tl-node__name {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: 1.35;
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-certification .tl-node__name::after {
  content: "";
  display: block;
  width: 34px;
  height: 2px;
  margin-top: 10px;
  background: var(--color-primary);
}

.page-certification .tl-node__rows {
  margin: var(--space-2) 0 0;
  display: grid;
  gap: 6px;
}

.page-certification .tl-node__row {
  display: grid;
  grid-template-columns: 3.4em minmax(0, 1fr);
  gap: var(--space-2);
  min-width: 0;
}

.page-certification .tl-node__row dt {
  font-family: var(--font-heading);
  font-size: var(--text-xs);
  line-height: 1.9;
  letter-spacing: 0.16em;
  color: var(--color-accent);
}

.page-certification .tl-node__row dd {
  margin: 0;
  font-family: var(--font-serif);
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-ink-soft);
  min-width: 0;
}

/* 起步阶段：密集排列 */
.page-certification .tl-list--dense .tl-node {
  padding-block: var(--space-2);
}

.page-certification .tl-list--dense .tl-node__rows {
  margin-top: var(--space-2);
  gap: 2px;
}

/* 扩容 / 联赛化：留白拉开 */
.page-certification .tl-list--roomy .tl-node {
  padding-block: var(--space-4);
  gap: var(--space-3);
}

.page-certification .tl-list--roomy .tl-node__rows {
  margin-top: var(--space-3);
  gap: var(--space-1);
}

/* 起步阶段图文并排 */
.page-certification .cert-phase__body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
}

.page-certification .cert-phase__figure {
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius-md);
  background: var(--color-surface-deep);
}

.page-certification .cert-phase__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

/* ------------------------------------------------------------
   联赛化阶段：深色区块
   ------------------------------------------------------------ */
.page-certification .cert-phase--league {
  padding-block: var(--section-y-lg);
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.page-certification .cert-phase--league .rule-index {
  color: var(--color-contrast-accent);
}

.page-certification .cert-phase--league .section-marker {
  color: var(--color-contrast-line);
}

.page-certification .cert-phase--league .section-marker[data-active] {
  color: var(--color-contrast-accent);
}

.page-certification .cert-phase--league .cert-phase__intro h2 {
  color: var(--color-contrast-ink);
}

.page-certification .cert-phase--league .cert-phase__lede {
  color: var(--color-contrast-ink);
  opacity: 0.82;
}

.page-certification .cert-league__media {
  margin: 0 0 var(--space-6);
  overflow: hidden;
  border-radius: var(--radius-md);
  border: var(--border-thin) solid var(--color-contrast-line);
}

.page-certification .cert-league__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 1;
  object-fit: cover;
}

.page-certification .tl-list--deep .tl-node {
  border-top-color: var(--color-contrast-line);
}

.page-certification .tl-list--deep .tl-node__idx {
  color: var(--color-contrast-accent);
}

.page-certification .tl-list--deep .tl-node__name {
  color: var(--color-contrast-ink);
}

.page-certification .tl-list--deep .tl-node__name::after {
  background: var(--color-contrast-accent);
}

.page-certification .tl-list--deep .tl-node__row dt {
  color: var(--color-contrast-accent);
}

.page-certification .tl-list--deep .tl-node__row dd {
  color: var(--color-contrast-ink);
  opacity: 0.86;
}

/* ------------------------------------------------------------
   教练履历登记
   ------------------------------------------------------------ */
.page-certification .cert-coach {
  padding-block: var(--section-y);
  background: var(--color-primary-soft);
}

.page-certification .cert-coach__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-2);
  align-items: start;
  margin-bottom: var(--space-6);
}

.page-certification .cert-coach__intro {
  min-width: 0;
}

.page-certification .cert-coach__intro h2 {
  margin: var(--space-2) 0 var(--space-3);
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
  max-width: 22ch;
}

.page-certification .cert-coach__lede {
  font-family: var(--font-serif);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
  max-width: var(--measure);
}

.page-certification .cert-coach__body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
}

.page-certification .cert-coach__prose {
  display: grid;
  gap: var(--space-3);
  max-width: var(--measure);
}

.page-certification .cert-coach__prose p {
  font-family: var(--font-serif);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-certification .cert-coach__prose a {
  color: var(--color-focus);
  text-decoration: none;
  border-bottom: var(--border-thin) solid var(--color-accent);
  padding-bottom: 1px;
}

.page-certification .cert-coach__prose a:hover,
.page-certification .cert-coach__prose a:focus-visible {
  color: var(--color-accent);
  border-bottom-color: var(--color-focus);
}

.page-certification .cert-coach__sheet {
  margin: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-certification .cert-coach__cell {
  padding: var(--space-3);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-certification .cert-coach__cell:first-child {
  border-top: 0;
}

.page-certification .cert-coach__cell dt {
  font-family: var(--font-heading);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  color: var(--color-ink-muted);
}

.page-certification .cert-coach__cell dd {
  margin: var(--space-1) 0 0;
  display: flex;
  align-items: baseline;
  gap: 4px;
  color: var(--color-ink);
}

.page-certification .cert-coach__n {
  font-size: var(--text-2xl);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--color-accent);
}

.page-certification .cert-coach__u {
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.page-certification .cert-coach__text {
  font-family: var(--font-serif);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-ink-soft);
  display: block;
}

/* ------------------------------------------------------------
   行动出口
   ------------------------------------------------------------ */
.page-certification .cert-next {
  padding-block: var(--section-y);
  background: var(--color-surface);
}

.page-certification .cert-next__title {
  margin: var(--space-2) 0 var(--space-3);
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-certification .cert-next__lede {
  font-family: var(--font-serif);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
  max-width: var(--measure);
  margin-bottom: var(--space-6);
}

.page-certification .cert-next__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-2);
}

.page-certification .cert-next__item {
  min-width: 0;
}

.page-certification .cert-next__link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-areas:
    "idx title"
    "idx desc";
  gap: 4px var(--space-2);
  padding: var(--space-3);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-surface-alt);
  text-decoration: none;
  color: inherit;
  height: 100%;
  transition: border-color 180ms ease, background-color 180ms ease;
}

.page-certification .cert-next__link:hover,
.page-certification .cert-next__link:focus-visible {
  border-color: var(--color-accent);
  background: var(--color-highlight);
}

.page-certification .cert-next__idx {
  grid-area: idx;
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  color: var(--color-accent);
  padding-top: 0.35em;
}

.page-certification .cert-next__title-text {
  grid-area: title;
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
  letter-spacing: var(--tracking-heading);
}

.page-certification .cert-next__desc {
  grid-area: desc;
  font-family: var(--font-serif);
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink-soft);
}

.page-certification .cert-next__note {
  margin-top: var(--space-6);
  padding-top: var(--space-2);
  border-top: var(--border-thin) solid var(--color-line);
  font-family: var(--font-serif);
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink-muted);
  max-width: var(--measure);
}

/* ------------------------------------------------------------
   响应式：先窄屏，再逐级放开
   ------------------------------------------------------------ */
@media (min-width: 640px) {
  .page-certification .phase-scale__track {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-certification .phase-seg {
    padding: 0 var(--space-3);
    border-top: 0;
  }

  .page-certification .phase-seg:first-child {
    padding-left: 0;
  }

  .page-certification .phase-seg:last-child {
    padding-right: 0;
  }

  .page-certification .phase-seg + .phase-seg::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--color-primary);
  }

  .page-certification .cert-coach__sheet {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-certification .cert-coach__cell:nth-child(2) {
    border-top: 0;
  }

  .page-certification .cert-coach__cell:nth-child(2n) {
    border-left: var(--border-thin) solid var(--color-line);
  }

  .page-certification .cert-next__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-certification .cert-hero {
    padding-top: var(--space-6);
    padding-bottom: var(--space-8);
  }

  .page-certification .cert-hero__grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    gap: var(--space-8);
  }

  .page-certification .cert-hero__title {
    margin-bottom: var(--space-4);
  }

  .page-certification .cert-hero__lede {
    font-size: var(--text-lg);
    line-height: 1.7;
  }

  .page-certification .cert-figures {
    padding-top: var(--space-4);
  }

  .page-certification .phase-scale {
    gap: var(--space-4);
  }

  .page-certification .cert-phase__body {
    grid-template-columns: minmax(0, 1fr) minmax(0, 300px);
    gap: var(--space-8);
    align-items: start;
  }

  .page-certification .cert-phase__figure {
    position: sticky;
    top: var(--space-6);
  }

  .page-certification .cert-coach__body {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    gap: var(--space-8);
    align-items: start;
  }

  .page-certification .cert-coach__sheet {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-certification .cert-coach__cell:nth-child(2),
  .page-certification .cert-coach__cell:nth-child(3),
  .page-certification .cert-coach__cell:nth-child(4) {
    border-top: var(--border-thin) solid var(--color-line);
  }

  .page-certification .cert-coach__cell:nth-child(2n) {
    border-left: 0;
  }

  .page-certification .cert-next__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1100px) {
  .page-certification .cert-phase--expand .cert-phase__intro h2,
  .page-certification .cert-phase--league .cert-phase__intro h2 {
    max-width: 30ch;
  }

  .page-certification .tl-list--roomy .tl-node {
    padding-block: var(--space-6);
  }
}
<<<END>>>