/*
 * 角色：page-biodegradable-film-machine 页面专属样式
 * 规则：只写此页面特有的组件样式，Token 全部引用 Global.css 的变量
 * 禁止：不得定义 :root{}，不得写死颜色/间距数值
 * 文件：assets/css/page-biodegradable-film-machine.css
 */

/* ============================================================
   REDUCED MOTION
   ============================================================ */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ============================================================
   S1 — HERO
   ============================================================ */

/* ★ 新增：呼吸动画 keyframes（参照 mono-layer heroBreath） */
@keyframes bioHeroBreath {
  0%   { transform: scale(1.00); }
  50%  { transform: scale(1.06); }
  100% { transform: scale(1.00); }
}

.bio-hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.bio-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

/* ★ 改动：img 增加 position: absolute + inset: 0 + 呼吸动画 */
.bio-hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 40%;
  position: absolute;        /* ← 新增 */
  inset: 0;                  /* ← 新增 */
  animation: bioHeroBreath 12s ease-in-out infinite;  /* ← 新增 */
  will-change: transform;    /* ← 新增 */
}

.bio-hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    105deg,
    rgba(11, 13, 16, 0.90) 0%,
    rgba(11, 13, 16, 0.65) 55%,
    rgba(11, 13, 16, 0.30) 100%
  );
}

.bio-hero__overlay::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(0deg, transparent, transparent 59px,
      rgba(255,255,255,0.025) 59px, rgba(255,255,255,0.025) 60px),
    repeating-linear-gradient(90deg, transparent, transparent 59px,
      rgba(255,255,255,0.025) 59px, rgba(255,255,255,0.025) 60px);
  pointer-events: none;
}

.bio-hero__inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  padding-top: var(--sp-8);
  padding-bottom: var(--sp-6);
  max-width: 820px;
}

.bio-hero__badge {
  display: inline-flex;
  align-items: center;
  padding: 0.3em 1em;
  background: rgba(22, 101, 52, 0.15);
  color: rgba(134, 239, 172, 0.90);
  border: 1px solid rgba(34, 197, 94, 0.35);
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-radius: 100px;
  width: fit-content;
}

.bio-hero__title {
  font-size: clamp(30px, 4.5vw, 52px);
  font-weight: 800;
  color: #fff;
  line-height: 1.1;
  margin: 0;
  text-wrap: pretty;
}

.bio-hero__title em {
  font-style: normal;
  color: rgba(134, 239, 172, 0.55);
}

.bio-hero__subtitle {
  font-size: clamp(var(--text-base), 1.6vw, var(--text-md));
  color: rgba(255, 255, 255, 0.72);
  line-height: 1.65;
  max-width: 600px;
  margin: 0;
  text-wrap: pretty;
}

/* Trust bar */
.bio-hero__trust {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--r-md);
  padding: var(--sp-2) var(--sp-3);
  width: fit-content;
}

.bio-hero__trust-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0 var(--sp-3);
  gap: 2px;
}

.bio-hero__trust-num {
  font-family: 'DM Mono', monospace;
  font-size: clamp(20px, 2.4vw, 28px);
  font-weight: 800;
  color: #fff;
  line-height: 1;
}

.bio-hero__trust-unit {
  font-size: var(--text-xs);
  font-weight: 400;
  color: rgba(255, 255, 255, 0.50);
  margin-left: 2px;
}

.bio-hero__trust-label {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.45);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.bio-hero__trust-divider {
  width: 1px;
  height: 36px;
  background: rgba(255, 255, 255, 0.12);
  flex-shrink: 0;
}

/* Regulation warning notice */
.bio-hero__reg-notice {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-1);
  background: rgba(234, 179, 8, 0.08);
  border: 1px solid rgba(234, 179, 8, 0.28);
  border-radius: var(--r-md);
  padding: var(--sp-2) var(--sp-3);
  max-width: 580px;
}

.bio-hero__reg-notice svg {
  flex-shrink: 0;
  margin-top: 2px;
  color: rgba(253, 224, 71, 0.85);
}

.bio-hero__reg-notice span {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.70);
  line-height: 1.6;
}

.bio-hero__reg-notice strong {
  color: rgba(253, 224, 71, 0.90);
}

.bio-hero__reg-notice a {
  color: rgba(253, 224, 71, 0.80);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color 0.2s ease;
}

.bio-hero__reg-notice a:hover {
  color: #fff;
}

/* CTA group */
.bio-hero__cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  align-items: center;
}

/* ★ 新增：reduced motion 保护 */
@media (prefers-reduced-motion: reduce) {
  .bio-hero__bg img {
    animation: none;
  }
}

/* ============================================================
   S2 — WHAT THIS MACHINE PRODUCES
   ============================================================ */

.bio-produces {
  padding: var(--sp-7) var(--sp-5);
}

.bio-produces__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-3);
  margin-top: var(--sp-5);
}

.bio-produces__card {
  background: #fff;
  border-radius: var(--r-lg);
  border: 1px solid var(--gray-100);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.bio-produces__card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lift);
  border-color: var(--brand);
}

.bio-produces__card-img {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--gray-50);
}

.bio-produces__card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}

.bio-produces__card:hover .bio-produces__card-img img {
  transform: scale(1.04);
}

.bio-produces__card-body {
  padding: var(--sp-3);
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--sp-1);
}

.bio-produces__tag {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: var(--r-sm);
  width: fit-content;
}

.bio-produces__tag--primary {
  background: var(--green-bg);
  color: var(--green-fg);
}

.bio-produces__tag--secondary {
  background: var(--gray-50);
  color: var(--gray-600);
  border: 1px solid var(--gray-100);
}

.bio-produces__card-body h3 {
  font-size: var(--text-md);
  font-weight: 700;
  color: var(--gray-800);
  margin: 0;
  line-height: 1.3;
}

.bio-produces__card-body p {
  font-size: var(--text-sm);
  color: var(--gray-600);
  line-height: 1.65;
  margin: 0;
}

.bio-produces__geo {
  margin-top: var(--sp-5);
  padding: var(--sp-3) var(--sp-4);
  background: var(--gray-50);
  border-radius: var(--r-lg);
  border: 1px solid var(--gray-100);
}

.bio-produces__geo p {
  font-size: var(--text-sm);
  color: var(--gray-600);
  line-height: 1.75;
  margin: 0;
}

/* ============================================================
   S3 — WHY DEDICATED MACHINE (section-dark)
   ============================================================ */

.bio-why {
  padding: var(--sp-7) var(--sp-5);
}

/* Comparison table — dark surface */
.bio-why__compare-wrap {
  margin-bottom: var(--sp-5);
}

.bio-why__compare-scroll {
  overflow-x: auto;
  border-radius: var(--r-lg);
  border: 1px solid rgba(255, 255, 255, 0.08);
  -webkit-overflow-scrolling: touch;
}

.bio-why__compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
  background: rgba(255, 255, 255, 0.02);
}

.bio-why__compare-table thead tr {
  background: rgba(255, 255, 255, 0.07);
  border-bottom: 1px solid rgba(255, 255, 255, 0.10);
}

.bio-why__compare-table th {
  padding: 12px 18px;
  text-align: left;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.42);
  white-space: nowrap;
}

.bio-why__th-pe {
  color: rgba(255, 180, 180, 0.60) !important;
}

.bio-why__th-bio {
  color: rgba(134, 239, 172, 0.70) !important;
}

.bio-why__compare-table td {
  padding: 12px 18px;
  color: rgba(255, 255, 255, 0.65);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  vertical-align: top;
  line-height: 1.55;
}

.bio-why__compare-table tr:last-child td {
  border-bottom: none;
}

.bio-why__compare-table tr:hover td {
  background: rgba(255, 255, 255, 0.03);
}

.bio-why__compare-table td:first-child {
  font-weight: 600;
  color: rgba(255, 255, 255, 0.80);
  white-space: nowrap;
}

/* Bio machine column — green tint */
.bio-why__td-bio {
  color: rgba(134, 239, 172, 0.85) !important;
  font-weight: 500;
}

/* Processing parameter callout cards — dark surface */
.bio-why__callout-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-3);
  margin-bottom: var(--sp-5);
}

.bio-why__callout {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-2);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: var(--r-lg);
  padding: var(--sp-3);
  transition: border-color 0.2s ease, background 0.2s ease;
}

.bio-why__callout:hover {
  border-color: rgba(34, 197, 94, 0.30);
  background: rgba(255, 255, 255, 0.07);
}

.bio-why__callout-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  background: rgba(22, 101, 52, 0.25);
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(134, 239, 172, 0.85);
  margin-top: 2px;
}

.bio-why__callout-title {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.45);
  margin-bottom: 4px;
}

.bio-why__callout-value {
  font-family: 'DM Mono', monospace;
  font-size: var(--text-xl);
  font-weight: 800;
  color: rgba(134, 239, 172, 0.90);
  line-height: 1.1;
  margin-bottom: var(--sp-1);
}

.bio-why__callout-desc {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.52);
  line-height: 1.65;
}

/* Cross-section diagram — 2-layer AB */
.bio-why__cs-wrap {
  margin-bottom: var(--sp-5);
}

.bio-why__cs-heading {
  font-size: var(--text-md);
  font-weight: 700;
  color: rgba(255, 255, 255, 0.90);
  margin: 0 0 var(--sp-2) 0;
}

.bio-why__cs-label {
  font-family: 'DM Mono', monospace;
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.38);
  margin: 0 0 var(--sp-2) 0;
  letter-spacing: 0.04em;
}

.bio-why__cs-bar-wrap {
  display: flex;
  flex-direction: column;
  height: 160px;
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  margin-bottom: var(--sp-2);
}

.bio-why__cs-bar {
  display: flex;
  align-items: center;
  padding: 0 var(--sp-2);
  min-height: 24px;
  transition: filter 0.2s ease;
}

.bio-why__cs-bar:hover {
  filter: brightness(1.15);
}

/* PLA-rich layer — blue-green */
.bio-why__cs-bar--pla {
  background: rgba(22, 101, 52, 0.50);
  border-left: 3px solid rgba(34, 197, 94, 0.75);
}

/* PBAT-rich layer — teal */
.bio-why__cs-bar--pbat {
  background: rgba(15, 118, 110, 0.50);
  border-left: 3px solid rgba(45, 212, 191, 0.75);
}

.bio-why__cs-bar-text {
  font-family: 'DM Mono', monospace;
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.75);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Legend */
.bio-why__cs-legend {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-bottom: var(--sp-2);
}

.bio-why__cs-legend-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.60);
  white-space: nowrap;
}

.bio-why__cs-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 2px;
  flex-shrink: 0;
}

.bio-why__cs-dot--pla {
  background: rgba(22, 101, 52, 0.80);
  border: 1px solid rgba(34, 197, 94, 0.65);
}

.bio-why__cs-dot--pbat {
  background: rgba(15, 118, 110, 0.80);
  border: 1px solid rgba(45, 212, 191, 0.65);
}

.bio-why__cs-note {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.35);
  line-height: 1.65;
  margin: var(--sp-1) 0 0 0;
  font-style: italic;
}

/* GEO paragraph */
.bio-why__geo {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: var(--r-lg);
  padding: var(--sp-3) var(--sp-4);
}

.bio-why__geo p {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.75;
  margin: 0;
}

/* ============================================================
   S4 — TECHNICAL SPECIFICATIONS
   ============================================================ */

.bio-specs {
  padding: var(--sp-7) var(--sp-5);
}

.bio-specs__machine-img {
  width: 100%;
  border-radius: var(--r-lg);
  overflow: hidden;
  margin-bottom: var(--sp-5);
  aspect-ratio: 21 / 9;
  background: var(--gray-50);
}

.bio-specs__machine-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Tab selector */
.bio-specs__tabs {
  display: flex;
  gap: var(--sp-1);
  flex-wrap: wrap;
  margin-bottom: var(--sp-3);
  border-bottom: 2px solid var(--gray-100);
  padding-bottom: 0;
}

.bio-specs__tab {
  padding: var(--sp-2) var(--sp-3);
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--gray-600);
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  cursor: pointer;
  border-radius: var(--r-md) var(--r-md) 0 0;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
  white-space: nowrap;
}

.bio-specs__tab:hover {
  color: var(--brand);
  background: var(--brand-subtle);
}

.bio-specs__tab--active {
  color: var(--brand);
  border-bottom-color: var(--brand);
  background: var(--brand-subtle);
}

.bio-specs__tab:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
}

/* Tab panels */
.bio-specs__panel {
  display: block;
}

.bio-specs__panel[hidden] {
  display: none;
}

.bio-specs__table-scroll {
  overflow-x: auto;
  border-radius: var(--r-lg);
  border: 1px solid var(--gray-100);
  box-shadow: var(--shadow-card);
  margin-bottom: var(--sp-2);
  -webkit-overflow-scrolling: touch;
}

.bio-specs__table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
  background: #fff;
}

.bio-specs__table thead tr {
  background: var(--charcoal);
}

.bio-specs__table th {
  padding: 13px 18px;
  text-align: left;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.55);
  white-space: nowrap;
}

.bio-specs__table td {
  padding: 13px 18px;
  border-bottom: 1px solid var(--gray-50);
  color: var(--gray-600);
  vertical-align: middle;
  font-family: 'DM Mono', monospace;
  font-size: var(--text-xs);
}

.bio-specs__table tr:last-child td {
  border-bottom: none;
}

.bio-specs__table tr:hover td {
  background: var(--gray-50);
}

.bio-specs__model {
  font-weight: 700;
  color: var(--gray-800);
  font-family: 'DM Mono', monospace;
  white-space: nowrap;
}

.bio-specs__footnote {
  font-size: var(--text-xs);
  color: var(--gray-400);
  line-height: 1.65;
  margin: 0 0 var(--sp-5) 0;
}

.bio-specs__footnote a {
  color: var(--brand);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* Shared specs grid */
.bio-specs__shared {
  margin-top: var(--sp-5);
}

.bio-specs__shared h3 {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--gray-800);
  margin: 0 0 var(--sp-3) 0;
}

.bio-specs__shared-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--sp-2);
}

.bio-specs__shared-item {
  background: var(--gray-50);
  border: 1px solid var(--gray-100);
  border-radius: var(--r-md);
  padding: var(--sp-2) var(--sp-3);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.bio-specs__shared-label {
  font-size: var(--text-xs);
  color: var(--gray-400);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
}

.bio-specs__shared-value {
  font-family: 'DM Mono', monospace;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--gray-800);
  line-height: 1.4;
}

/* ============================================================
   S5 — WHO THIS IS RIGHT FOR
   ============================================================ */

.bio-who {
  padding: var(--sp-7) var(--sp-5);
}

.bio-who__profiles {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-3);
  margin-top: var(--sp-5);
  margin-bottom: var(--sp-5);
}

.bio-who__card {
  background: #fff;
  border-radius: var(--r-lg);
  border: 1px solid var(--gray-100);
  box-shadow: var(--shadow-card);
  padding: var(--sp-4);
}

.bio-who__card-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--sp-2);
}

.bio-who__card--fit .bio-who__card-icon {
  background: var(--green-bg);
  color: var(--green-fg);
}

.bio-who__card--notfit .bio-who__card-icon {
  background: var(--amber-bg);
  color: var(--amber-fg);
}

.bio-who__card h3 {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--gray-800);
  margin: 0 0 var(--sp-2) 0;
}

.bio-who__card ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--sp-1);
}

.bio-who__card ul li {
  font-size: var(--text-sm);
  color: var(--gray-600);
  line-height: 1.6;
  padding-left: var(--sp-2);
  position: relative;
}

.bio-who__card--fit ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--green-fg);
}

.bio-who__card--notfit ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--amber-fg);
}

.bio-who__card ul li strong {
  color: var(--gray-800);
  font-weight: 600;
  display: block;
  margin-bottom: 2px;
}

.bio-who__card ul li a {
  color: var(--brand);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* Regulation context block */
.bio-who__reg-block {
  background: var(--gray-50);
  border: 1px solid var(--gray-100);
  border-radius: var(--r-lg);
  padding: var(--sp-4);
  margin-top: var(--sp-5);
}

.bio-who__reg-block h3 {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--gray-800);
  margin: 0 0 var(--sp-3) 0;
}

.bio-who__reg-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-3);
  margin-bottom: var(--sp-3);
}

.bio-who__reg-item {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-2);
}

.bio-who__reg-icon {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  background: var(--brand-tint);
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--brand);
  margin-top: 2px;
}

.bio-who__reg-item strong {
  display: block;
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--gray-800);
  margin-bottom: 4px;
}

.bio-who__reg-item p {
  font-size: var(--text-xs);
  color: var(--gray-600);
  line-height: 1.65;
  margin: 0;
}

.bio-who__reg-note {
  font-size: var(--text-xs);
  color: var(--gray-400);
  line-height: 1.65;
  margin: 0;
  font-style: italic;
  border-top: 1px solid var(--gray-100);
  padding-top: var(--sp-2);
}

/* ============================================================
   S6 — RUNNING THIS LINE
   ============================================================ */

.bio-running {
  padding: var(--sp-7) var(--sp-5);
}

.bio-running__hero-img {
  width: 100%;
  border-radius: var(--r-lg);
  overflow: hidden;
  margin-bottom: var(--sp-5);
  aspect-ratio: 21 / 9;
  background: var(--gray-50);
}

.bio-running__hero-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.bio-running__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-3);
  margin-top: var(--sp-5);
}

.bio-running__block {
  background: #fff;
  border-radius: var(--r-lg);
  border: 1px solid var(--gray-100);
  box-shadow: var(--shadow-card);
  padding: var(--sp-4);
}

.bio-running__block-icon {
  width: 40px;
  height: 40px;
  background: var(--green-bg);
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--green-fg);
  margin-bottom: var(--sp-2);
}

.bio-running__block h3 {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--gray-800);
  margin: 0 0 var(--sp-2) 0;
}

.bio-running__block ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.bio-running__block ul li {
  font-size: var(--text-sm);
  color: var(--gray-600);
  line-height: 1.6;
  padding-left: var(--sp-2);
  position: relative;
}

.bio-running__block ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--green-fg);
}

/* ============================================================
   S7 — BUILD STANDARD (section-dark)
   ============================================================ */

.bio-build {
  padding: var(--sp-7) var(--sp-5);
}

/* Hardware cards — dark surface */
.bio-build__cards {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--sp-3);
  margin-bottom: var(--sp-6);
}

.bio-build__card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: var(--r-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease, border-color 0.25s ease, background 0.25s ease;
}

.bio-build__card:hover {
  transform: translateY(-3px);
  border-color: rgba(34, 197, 94, 0.35);
  background: rgba(255, 255, 255, 0.09);
}

.bio-build__part-img {
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.04);
}

.bio-build__part-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}

.bio-build__card:hover .bio-build__part-img img {
  transform: scale(1.05);
}

.bio-build__card-icon {
  width: 36px;
  height: 36px;
  background: rgba(22, 101, 52, 0.25);
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(134, 239, 172, 0.85);
  margin: var(--sp-2) var(--sp-2) 0 var(--sp-2);
}

.bio-build__card-label {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.40);
  padding: var(--sp-1) var(--sp-2) 0 var(--sp-2);
}

.bio-build__card-value {
  font-family: 'DM Mono', monospace;
  font-size: var(--text-base);
  font-weight: 700;
  color: #fff;
  padding: 4px var(--sp-2) 0 var(--sp-2);
  line-height: 1.3;
}

.bio-build__card-desc {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.65;
  padding: var(--sp-1) var(--sp-2) var(--sp-2) var(--sp-2);
  margin: 0;
  flex: 1;
}

/* FAT block */
.bio-build__fat {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: var(--sp-5);
  align-items: start;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--r-lg);
  overflow: hidden;
}

.bio-build__fat-img {
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.04);
}

.bio-build__fat-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.bio-build__fat-content {
  padding: var(--sp-4) var(--sp-4) var(--sp-4) 0;
}

.bio-build__fat-content h3 {
  font-size: var(--text-xl);
  font-weight: 700;
  color: #fff;
  margin: 0 0 var(--sp-2) 0;
}

.bio-build__fat-content p {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.62);
  line-height: 1.75;
  margin: 0 0 var(--sp-2) 0;
}

/* Credentials — dark surface (NOT .cred-item) */
.bio-build__fat-creds {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  margin-top: var(--sp-3);
}

.bio-build__cred {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-2);
}

.bio-build__cred-icon {
  width: 36px;
  height: 36px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(134, 239, 172, 0.80);
  flex-shrink: 0;
}

.bio-build__cred-title {
  font-size: var(--text-sm);
  font-weight: 700;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.3;
}

.bio-build__cred-desc {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.42);
  line-height: 1.5;
  margin-top: 2px;
}

/* ============================================================
   S8 — AFTER-SALES
   ============================================================ */

.bio-aftersales {
  padding: var(--sp-7) var(--sp-5);
}

.bio-aftersales__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-3);
  margin-top: var(--sp-5);
}

.bio-aftersales__item {
  background: #fff;
  border-radius: var(--r-lg);
  border: 1px solid var(--gray-100);
  box-shadow: var(--shadow-card);
  padding: var(--sp-4);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.bio-aftersales__item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lift);
  border-color: var(--brand);
}

.bio-aftersales__item-icon {
  width: 40px;
  height: 40px;
  background: var(--green-bg);
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--green-fg);
  margin-bottom: var(--sp-2);
}

.bio-aftersales__item h3 {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--gray-800);
  margin: 0 0 var(--sp-1) 0;
}

.bio-aftersales__item p {
  font-size: var(--text-sm);
  color: var(--gray-600);
  line-height: 1.70;
  margin: 0;
}

.bio-aftersales__cta {
  margin-top: var(--sp-5);
  text-align: center;
}

/* ============================================================
   S9 — RELATED CONFIGURATIONS
   ============================================================ */

.bio-related {
  padding: var(--sp-7) var(--sp-5);
}

.bio-related__cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-3);
  margin-top: var(--sp-5);
}

.bio-related__card {
  background: #fff;
  border-radius: var(--r-lg);
  border: 1px solid var(--gray-100);
  box-shadow: var(--shadow-card);
  padding: var(--sp-4);
  display: flex;
  flex-direction: column;
  gap: var(--sp-1);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.bio-related__card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lift);
  border-color: var(--brand);
}

.bio-related__card-img {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--gray-50);
  margin-bottom: var(--sp-1);
}

.bio-related__card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}

.bio-related__card:hover .bio-related__card-img img {
  transform: scale(1.04);
}

.bio-related__badge {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: var(--r-sm);
  background: var(--gray-50);
  color: var(--gray-600);
  border: 1px solid var(--gray-100);
  width: fit-content;
}

.bio-related__card h3 {
  font-size: var(--text-md);
  font-weight: 700;
  color: var(--gray-800);
  margin: 0;
}

.bio-related__card p {
  font-size: var(--text-sm);
  color: var(--gray-600);
  line-height: 1.65;
  margin: 0;
  flex: 1;
}

/* ============================================================
   S10 — FAQ
   ============================================================ */

.bio-faq {
  padding: var(--sp-7) var(--sp-5);
}

.bio-faq__list {
  margin-top: var(--sp-5);
  display: flex;
  flex-direction: column;
  gap: var(--sp-1);
  max-width: 860px;
}

.bio-faq__item {
  background: #fff;
  border: 1px solid var(--gray-100);
  border-radius: var(--r-lg);
  overflow: hidden;
  transition: border-color 0.2s ease;
}

.bio-faq__item[open] {
  border-color: rgba(34, 197, 94, 0.30);
}

/* Remove native marker */
summary { list-style: none; }
summary::-webkit-details-marker { display: none; }

.bio-faq__q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-2);
  padding: var(--sp-3) var(--sp-4);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--gray-800);
  cursor: pointer;
  user-select: none;
  line-height: 1.5;
  transition: background 0.2s ease, color 0.2s ease;
}

.bio-faq__q:hover {
  background: var(--green-bg);
  color: var(--green-fg);
}

.bio-faq__item[open] .bio-faq__q {
  color: var(--green-fg);
  background: var(--green-bg);
  border-bottom: 1px solid rgba(34, 197, 94, 0.15);
}

.bio-faq__q:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
}

.bio-faq__chevron {
  flex-shrink: 0;
  color: var(--gray-400);
  transition: transform 0.25s ease;
}

.bio-faq__item[open] .bio-faq__chevron {
  transform: rotate(180deg);
  color: var(--green-fg);
}

.bio-faq__a {
  padding: var(--sp-3) var(--sp-4);
  border-top: 1px solid var(--gray-50);
}

.bio-faq__a p {
  font-size: var(--text-sm);
  color: var(--gray-600);
  line-height: 1.75;
  margin: 0 0 var(--sp-2) 0;
}

.bio-faq__a p:last-child {
  margin-bottom: 0;
}

.bio-faq__a strong {
  color: var(--gray-800);
  font-weight: 600;
}

/* ============================================================
   S11 — FINAL CTA (section-dark)
   ============================================================ */

.bio-cta {
  padding: var(--sp-8) var(--sp-5);
}

.bio-cta__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-7);
  align-items: center;
}

.bio-cta__content .section-title {
  display: block;
  margin-bottom: var(--sp-2);
}

.bio-cta__content h2 {
  font-size: clamp(26px, 3.5vw, 42px);
  font-weight: 800;
  color: #fff;
  line-height: 1.15;
  margin: 0 0 var(--sp-3) 0;
}

.bio-cta__content h2 em {
  font-style: normal;
  color: rgba(134, 239, 172, 0.55);
}

.bio-cta__content p {
  font-size: var(--text-base);
  color: rgba(255, 255, 255, 0.62);
  line-height: 1.75;
  margin: 0 0 var(--sp-2) 0;
}

.bio-cta__tagline {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.35);
  font-style: italic;
}

.bio-cta__actions {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  align-items: flex-start;
}

.bio-cta__contact {
  display: flex;
  align-items: center;
  gap: var(--sp-1);
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.40);
  margin-top: var(--sp-1);
}

.bio-cta__contact a {
  color: rgba(134, 239, 172, 0.80);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color 0.2s ease;
}

.bio-cta__contact a:hover {
  color: #fff;
}

/* ============================================================
   TAB SWITCHING — JavaScript
   ============================================================ */

/* 
  Tab switching is handled by inline JS or a global script.
  Add this to the page template or functions.php enqueue:

  document.querySelectorAll('.bio-specs__tab').forEach(btn => {
    btn.addEventListener('click', () => {
      document.querySelectorAll('.bio-specs__tab').forEach(b => {
        b.classList.remove('bio-specs__tab--active');
        b.setAttribute('aria-selected', 'false');
      });
      document.querySelectorAll('.bio-specs__panel').forEach(p => {
        p.hidden = true;
      });
      btn.classList.add('bio-specs__tab--active');
      btn.setAttribute('aria-selected', 'true');
      document.getElementById(btn.getAttribute('aria-controls')).hidden = false;
    });
  });
*/

/* ============================================================
   RESPONSIVE — 960px
   ============================================================ */

@media (max-width: 960px) {

  .bio-hero__trust {
    width: 100%;
    justify-content: space-around;
  }

  .bio-hero__reg-notice {
    max-width: 100%;
  }

  .bio-produces__grid {
    grid-template-columns: 1fr;
  }

  .bio-why__compare-scroll {
    overflow-x: auto;
  }

  .bio-why__callout-grid {
    grid-template-columns: 1fr;
  }

  .bio-specs__shared-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .bio-specs__tabs {
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: var(--sp-1);
  }

  .bio-who__profiles {
    grid-template-columns: 1fr;
  }

  .bio-who__reg-grid {
    grid-template-columns: 1fr;
  }

  .bio-running__grid {
    grid-template-columns: 1fr;
  }

  .bio-build__cards {
    grid-template-columns: repeat(2, 1fr);
  }

  .bio-build__fat {
    grid-template-columns: 1fr;
  }

  .bio-build__fat-content {
    padding: var(--sp-4);
  }

  .bio-aftersales__grid {
    grid-template-columns: 1fr;
  }

  .bio-related__cards {
    grid-template-columns: 1fr;
  }

  .bio-cta__inner {
    grid-template-columns: 1fr;
    gap: var(--sp-5);
  }

  .bio-faq__list {
    max-width: 100%;
  }
}

/* ============================================================
   RESPONSIVE — 600px
   ============================================================ */

@media (max-width: 600px) {

  .bio-hero__trust {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--sp-2);
    padding: var(--sp-3);
  }

  .bio-hero__trust-divider {
    display: none;
  }

  .bio-hero__trust-item {
    flex-direction: row;
    align-items: baseline;
    gap: var(--sp-1);
    padding: 0;
  }

  .bio-hero__cta-group {
    flex-direction: column;
    width: 100%;
  }

  .bio-hero__cta-group .btn {
    width: 100%;
    justify-content: center;
  }

  .bio-specs__shared-grid {
    grid-template-columns: 1fr;
  }

  .bio-build__cards {
    grid-template-columns: 1fr;
  }

  .bio-cta__actions .btn {
    width: 100%;
    justify-content: center;
  }
}