.page-about {
  --about-deep-green: #2F4A1C;
  --about-warm-cream: #F8F1E3;
  --about-pale-green: #F2F7E8;
  --about-deep-brown: #211D18;
  overflow-x: clip;
  background: var(--cream-bg);
}

.page-about .breadcrumb {
  width: min(var(--container), calc(100% - 3rem));
  margin-inline: auto;
  padding-top: 1.5rem;
}

/* ========== Hero / 我们为什么做奇异果 ========== */
.page-about .about-hero {
  position: relative;
  padding: clamp(2.5rem, 6vw, 5rem) 0 clamp(3rem, 6vw, 5rem);
  background:
    radial-gradient(ellipse at 82% 18%, rgba(139, 195, 74, 0.16) 0%, rgba(255, 255, 255, 0) 55%),
    linear-gradient(160deg, #FFFDF7 0%, #F7FBE9 60%, var(--cream-bg) 100%);
}

.page-about .about-hero-orb {
  position: absolute;
  right: clamp(-7rem, -4vw, -2rem);
  top: clamp(-5rem, -2vw, -1rem);
  width: clamp(220px, 32vw, 420px);
  aspect-ratio: 1;
  border-radius: 50%;
  background:
    radial-gradient(circle at center, rgba(255, 193, 7, 0.28) 0 26%, transparent 30%),
    repeating-conic-gradient(from 0deg, rgba(139, 195, 74, 0.14) 0deg 9deg, rgba(139, 195, 74, 0.04) 9deg 18deg),
    radial-gradient(circle at center, rgba(139, 195, 74, 0.12), transparent 68%);
  filter: blur(2px);
  pointer-events: none;
  z-index: 0;
}

.page-about .about-hero-inner {
  position: relative;
  z-index: 1;
  width: min(var(--container), calc(100% - 3rem));
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}

.page-about .about-title-wrap {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  margin: 1rem 0 0.5rem;
}

.page-about .about-brand-annotation {
  flex-shrink: 0;
  writing-mode: vertical-rl;
  font-family: var(--annotation-font);
  font-size: var(--caption-size);
  letter-spacing: 0.25em;
  line-height: 1.6;
  color: var(--warm-gold);
}

.page-about .about-hero h1 {
  margin: 0;
  font-size: var(--h1-size);
  line-height: var(--title-line-height);
  letter-spacing: -0.02em;
  color: var(--dark-brown);
  max-width: 12em;
}

.page-about .about-hero .page-intro {
  margin: 1rem 0 0;
  font-size: 1.0625rem;
  line-height: var(--body-line-height);
  color: var(--dark-gray);
  max-width: 42em;
}

.page-about .about-eye-line {
  width: 76px;
  height: 5px;
  margin: 1.5rem 0 1.75rem;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--kiwi-green), var(--kiwi-yellow));
}

.page-about .about-hero h2 {
  margin: 0 0 0.75rem;
  font-size: var(--h2-size);
  line-height: 1.2;
  color: var(--dark-brown);
}

.page-about .about-why-lead {
  margin: 0;
  max-width: 40em;
  line-height: var(--body-line-height);
  color: var(--dark-gray);
}

.page-about .about-mission-grid {
  display: grid;
  gap: 1rem;
  margin-top: 2rem;
}

.page-about .about-mission-item {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  border-top: 4px solid var(--kiwi-green);
  transition: transform var(--duration) var(--ease), box-shadow var(--duration) var(--ease);
}

.page-about .about-mission-item:nth-child(2) {
  border-top-color: var(--kiwi-yellow);
}

.page-about .about-mission-item:nth-child(3) {
  border-top-color: var(--leaf-green);
}

.page-about .about-mission-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.page-about .about-mission-icon {
  display: inline-block;
  font-family: var(--title-font);
  font-weight: 800;
  font-size: 0.875rem;
  color: var(--warm-gold);
  letter-spacing: 0.08em;
}

.page-about .about-mission-item h3 {
  margin: 0.5rem 0 0.25rem;
  font-size: var(--h3-size);
  color: var(--dark-brown);
}

.page-about .about-mission-item p {
  margin: 0;
  font-size: var(--caption-size);
  line-height: 1.65;
  color: var(--dark-gray);
}

.page-about .about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.page-about .about-hero-actions .btn {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.page-about .about-hero-visual {
  position: relative;
}

.page-about .about-hero-visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 640 / 420;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.page-about .about-fact-card {
  position: absolute;
  right: 0.5rem;
  bottom: 0.75rem;
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(10px);
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.page-about .about-fact-label {
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--leaf-green);
  letter-spacing: 0.08em;
}

.page-about .about-fact-row {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
}

.page-about .about-fact-num {
  font-family: var(--title-font);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--dark-brown);
  line-height: 1;
}

.page-about .about-fact-text {
  font-size: var(--caption-size);
  color: var(--dark-gray);
}

/* ========== 发展历程 ========== */
.page-about .about-journey-section {
  padding: var(--space-xl) 0;
  background: var(--about-warm-cream);
  position: relative;
}

.page-about .about-section-head {
  text-align: center;
  max-width: 620px;
  margin: 0 auto 1rem;
}

.page-about .about-section-head h2 {
  margin: 0.5rem 0 0.75rem;
  font-size: var(--h2-size);
  line-height: 1.2;
  color: var(--dark-brown);
}

.page-about .about-section-head p {
  margin: 0;
  line-height: var(--body-line-height);
  color: var(--dark-gray);
}

.page-about .about-timeline-curve {
  width: 100%;
  height: 60px;
  overflow: hidden;
  margin: 1rem 0 0.5rem;
}

.page-about .about-timeline-curve svg {
  display: block;
  width: 100%;
  height: 100%;
}

.page-about .about-timeline {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .about-timeline-item {
  position: relative;
  padding: 2rem 0 1rem 2.75rem;
  border-bottom: 1px dashed rgba(139, 195, 74, 0.35);
}

.page-about .about-timeline-item:last-child {
  border-bottom: 0;
}

.page-about .about-timeline summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  transition: transform var(--duration) var(--ease);
}

.page-about .about-timeline summary::-webkit-details-marker {
  display: none;
}

.page-about .about-timeline summary:hover .about-timeline-phase {
  color: var(--leaf-green);
}

.page-about .about-timeline-dot {
  position: absolute;
  left: 0;
  top: 2.25rem;
  width: 1.3rem;
  height: 1.3rem;
  border-radius: 50%;
  background: var(--kiwi-green);
  border: 5px solid var(--about-warm-cream);
  box-shadow: 0 0 0 2px var(--kiwi-green);
}

.page-about .about-timeline-item:nth-child(even) .about-timeline-dot {
  background: var(--kiwi-yellow);
  box-shadow: 0 0 0 2px var(--kiwi-yellow);
}

.page-about .about-timeline-meta {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.page-about .about-timeline-phase {
  font-family: var(--title-font);
  font-weight: 800;
  font-size: 1.125rem;
  color: var(--dark-brown);
  transition: color var(--duration) var(--ease);
}

.page-about .about-timeline-note {
  font-size: var(--caption-size);
  color: var(--warm-gold);
}

.page-about .about-timeline-body {
  margin-top: 0.75rem;
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--dark-gray);
  max-width: 40em;
}

.page-about .about-timeline-body p {
  margin: 0;
}

/* ========== 内容如何保持更新 ========== */
.page-about .about-update-section {
  padding: var(--space-xl) 0;
  background:
    radial-gradient(ellipse at 18% 20%, rgba(139, 195, 74, 0.1) 0%, rgba(255, 255, 255, 0) 55%),
    var(--about-deep-green);
}

.page-about .about-update-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}

.page-about .about-update-visual {
  position: relative;
}

.page-about .about-update-visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 520 / 340;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.page-about .about-update-tag {
  position: absolute;
  left: 1rem;
  bottom: 1rem;
  padding: 0.625rem 1.125rem;
  border-radius: var(--radius-pill);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(8px);
  font-weight: 800;
  font-size: var(--caption-size);
  color: var(--dark-brown);
}

.page-about .about-update-copy {
  color: var(--white);
}

.page-about .about-update-copy .section-kicker {
  color: var(--kiwi-yellow);
}

.page-about .about-update-copy h2 {
  margin: 0.5rem 0 0.75rem;
  font-size: var(--h2-size);
  line-height: 1.2;
  color: var(--white);
}

.page-about .about-update-lead {
  margin: 0 0 1.5rem;
  max-width: 36em;
  line-height: var(--body-line-height);
  color: rgba(255, 255, 255, 0.86);
}

.page-about .about-mechanism-list {
  list-style: none;
  margin: 0 0 1.75rem;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.page-about .about-mechanism-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1.125rem;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.12);
  border-left: 4px solid var(--kiwi-green);
  backdrop-filter: blur(6px);
}

.page-about .about-mechanism-item:nth-child(2) {
  border-left-color: var(--kiwi-yellow);
}

.page-about .about-mechanism-item:nth-child(2) .about-mechanism-num {
  background: var(--warm-gold);
}

.page-about .about-mechanism-item:nth-child(3) {
  border-left-color: var(--leaf-green);
}

.page-about .about-mechanism-num {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: var(--leaf-green);
  color: var(--white);
  font-family: var(--title-font);
  font-weight: 800;
  font-size: 0.8125rem;
}

.page-about .about-mechanism-text h3 {
  margin: 0 0 0.25rem;
  font-size: var(--h3-size);
  color: var(--white);
}

.page-about .about-mechanism-text p {
  margin: 0;
  font-size: var(--caption-size);
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.86);
}

.page-about .about-update-copy .btn-secondary {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.65);
}

.page-about .about-update-copy .btn-secondary:hover {
  background: var(--white);
  color: var(--about-deep-green);
}

/* ========== 团队与组织形态 ========== */
.page-about .about-team-section {
  padding: var(--space-xl) 0;
  background:
    radial-gradient(circle at 90% 14%, rgba(255, 193, 7, 0.12) 0%, rgba(255, 255, 255, 0) 32%),
    var(--cream-bg);
}

.page-about .about-team-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  margin-top: 2.5rem;
  align-items: center;
}

.page-about .about-team-bars {
  display: grid;
  gap: 1.5rem;
}

.page-about .about-bar-item {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.25rem 1rem;
  box-shadow: var(--shadow-sm);
}

.page-about .about-bar-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 0.5rem;
}

.page-about .about-bar-label {
  font-weight: 800;
  font-size: 1.0625rem;
  color: var(--dark-brown);
}

.page-about .about-bar-value {
  font-family: var(--title-font);
  font-weight: 800;
  font-size: 0.8125rem;
  color: var(--leaf-green);
  background: rgba(139, 195, 74, 0.16);
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-pill);
  white-space: nowrap;
}

.page-about .about-bar-track {
  position: relative;
  height: 0.75rem;
  border-radius: var(--radius-pill);
  background: #EAE3D3;
  overflow: hidden;
  margin-bottom: 0.625rem;
}

.page-about .about-bar-fill {
  display: block;
  height: 100%;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--kiwi-green), var(--kiwi-yellow));
}

.page-about .about-bar-fill-42 { width: 42%; }
.page-about .about-bar-fill-25 { width: 25%; }
.page-about .about-bar-fill-17 { width: 17%; }

.page-about .about-bar-desc {
  margin: 0;
  font-size: var(--caption-size);
  line-height: 1.6;
  color: var(--dark-gray);
}

.page-about .about-team-visual {
  position: relative;
}

.page-about .about-team-visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 480 / 320;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.page-about .about-team-note {
  position: absolute;
  left: 1rem;
  right: 1rem;
  bottom: 1rem;
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(8px);
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.page-about .about-team-note-label {
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--warm-gold);
  letter-spacing: 0.08em;
}

.page-about .about-team-note-value {
  font-family: var(--title-font);
  font-size: 1.25rem;
  color: var(--dark-brown);
}

.page-about .about-team-note-desc {
  font-size: var(--caption-size);
  color: var(--dark-gray);
}

/* ========== 资质与承诺 ========== */
.page-about .about-cert-section {
  position: relative;
  padding: var(--space-xl) 0;
  background: linear-gradient(160deg, var(--about-deep-brown) 0%, #17140F 100%);
  overflow: hidden;
}

.page-about .about-cert-section::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at center, rgba(255, 255, 255, 0.05) 0 2px, transparent 3px);
  background-size: 28px 28px;
  pointer-events: none;
}

.page-about .about-cert-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 6px;
  background: linear-gradient(90deg, var(--kiwi-green), var(--kiwi-yellow), var(--tomato));
  z-index: 1;
}

.page-about .about-cert-orb {
  position: absolute;
  right: -6rem;
  bottom: -6rem;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  background:
    radial-gradient(circle, rgba(255, 193, 7, 0.14) 0 22%, transparent 26%),
    repeating-conic-gradient(from 0deg, rgba(139, 195, 74, 0.16) 0deg 10deg, rgba(255, 255, 255, 0.03) 10deg 20deg);
  filter: blur(1px);
  pointer-events: none;
}

.page-about .about-cert-section .container {
  position: relative;
  z-index: 2;
}

.page-about .about-section-head-light h2 {
  color: var(--white);
}

.page-about .about-section-head-light p {
  color: rgba(255, 255, 255, 0.72);
}

.page-about .about-section-head-light .section-kicker {
  color: var(--kiwi-yellow);
}

.page-about .about-cert-card {
  margin-top: 2.5rem;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(10px);
  padding: clamp(1.5rem, 4vw, 3rem);
  color: var(--dark-brown);
}

.page-about .about-cert-top {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  align-items: flex-start;
  margin-bottom: 1.5rem;
}

.page-about .about-cert-shield {
  width: 60px;
  height: 64px;
}

.page-about .about-cert-shield svg {
  width: 100%;
  height: 100%;
  color: var(--leaf-green);
}

.page-about .about-cert-intro {
  margin: 0;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--dark-gray);
  max-width: 48em;
}

.page-about .tabs-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  border-bottom: 2px solid rgba(139, 195, 74, 0.2);
  padding-bottom: 0.75rem;
  margin-bottom: 1.5rem;
}

.page-about .tabs-trigger {
  border: 1px solid transparent;
  background: transparent;
  border-radius: var(--radius-pill);
  padding: 0.625rem 1.25rem;
  font-family: var(--title-font);
  font-weight: 800;
  font-size: 0.9375rem;
  cursor: pointer;
  color: var(--leaf-green);
  transition: background var(--duration) var(--ease), color var(--duration) var(--ease), box-shadow var(--duration) var(--ease);
  min-height: 44px;
}

.page-about .tabs-trigger:hover {
  background: rgba(139, 195, 74, 0.14);
}

.page-about .tabs-trigger[aria-selected="true"] {
  background: var(--leaf-green);
  color: var(--white);
  box-shadow: 0 4px 14px rgba(91, 140, 42, 0.3);
}

.page-about .tabs-panel {
  animation: about-fade-in 0.25s var(--ease);
}

.page-about .about-cert-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.page-about .about-cert-list li {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
  border-top: 3px solid var(--kiwi-green);
  transition: transform var(--duration) var(--ease), box-shadow var(--duration) var(--ease);
}

.page-about .about-cert-list li:nth-child(2) {
  border-top-color: var(--kiwi-yellow);
}

.page-about .about-cert-list li:nth-child(3) {
  border-top-color: var(--leaf-green);
}

.page-about .about-cert-list li:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.page-about .about-cert-list svg {
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  color: var(--leaf-green);
}

.page-about .about-cert-item-body h3 {
  margin: 0 0 0.375rem;
  font-size: 1rem;
  color: var(--dark-brown);
}

.page-about .about-cert-item-body p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--dark-gray);
}

.page-about .about-cert-link {
  display: inline-block;
  margin-top: 0.625rem;
  font-weight: 800;
  font-size: 0.875rem;
  color: var(--leaf-green);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-about .about-cert-link:hover {
  color: var(--kiwi-green);
}

/* ========== 动效 ========== */
@keyframes about-fade-in {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .page-about .about-hero-orb,
  .page-about .about-cert-orb {
    display: none;
  }
}

/* ========== 平板与桌面 ========== */
@media (min-width: 640px) {
  .page-about .about-mission-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-about .about-cert-list {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-about .about-cert-top {
    grid-template-columns: 72px 1fr;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero-inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 4rem;
  }

  .page-about .about-timeline {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 2rem;
    margin-top: 2rem;
  }

  .page-about .about-timeline::before {
    content: "";
    position: absolute;
    top: 1.2rem;
    left: 0;
    right: 0;
    height: 3px;
    border-radius: var(--radius-pill);
    background: linear-gradient(90deg, var(--kiwi-green) 0%, var(--kiwi-yellow) 42%, var(--kiwi-yellow) 62%, var(--leaf-green) 100%);
    opacity: 0.4;
  }

  .page-about .about-timeline-item {
    padding: 2.75rem 0 0;
    border-bottom: 0;
  }

  .page-about .about-timeline-item:nth-child(even) {
    margin-top: 1.5rem;
  }

  .page-about .about-timeline-dot {
    left: 0;
    top: 0.55rem;
  }

  .page-about .about-timeline-body {
    max-width: none;
  }

  .page-about .about-update-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
    gap: 4rem;
  }

  .page-about .about-team-layout {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    gap: 4rem;
  }
}