html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

:root {
  --spark-brand-red: #8f000d;
  --spark-brand-red-hover: #7a000b;
}

/* Shared section headings (operation-mode, development-history, index) */
/* Mobile matches founder.html「创始人寄语」: text-2xl font-semibold text-black tracking-tight */
.section-heading {
  font-family: Inter, "Noto Sans SC", "Microsoft YaHei", "PingFang SC", system-ui, sans-serif;
  font-size: 1.5rem;
  line-height: 2rem;
  font-weight: 600;
  color: #2C2C2C;
  letter-spacing: -0.025em;
}

.index-section-heading {
  font-size: 28px;
  line-height: 1.2;
  font-weight: 700;
}

@media (min-width: 768px) {
  .section-heading {
    font-size: 40px;
    line-height: 1.25;
    font-weight: 600;
    color: #2C2C2C;
  }

  .index-section-heading {
    font-size: 40px;
    line-height: 1.25;
    font-weight: 600;
  }
}

.material-symbols-outlined {
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}

html, body {
  overflow-x: hidden;
}

body.mobile-menu-open {
  overflow: hidden;
  touch-action: none;
}

#mobile-menu-panel {
  transform: translate3d(100%, 0, 0);
  transition: transform 0.22s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: transform;
  backface-visibility: hidden;
}

#mobile-menu-panel.is-open {
  transform: translate3d(0, 0, 0);
}

#mobile-menu-backdrop {
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.22s ease;
}

#mobile-menu-backdrop.is-open {
  opacity: 1;
  pointer-events: auto;
}

#mobile-menu {
  pointer-events: none;
}

#mobile-menu.is-open {
  pointer-events: auto;
}

#mobile-menu-btn,
#mobile-menu-close {
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

@media (max-width: 767px) {
  #site-nav,
  nav {
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
  }
}

#site-nav a.font-body-md,
nav a.font-body-md {
  font-size: 15px !important;
}

#mobile-menu-panel a,
#mobile-menu-panel button,
#mobile-menu-panel span {
  color: inherit;
}

/* Hero carousel (index) */
.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1.2s ease-in-out;
}

.hero-slide.active {
  opacity: 1;
}

.hero-dots {
  display: flex;
  gap: 8px;
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 20;
}

.hero-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  cursor: pointer;
  transition: all 0.3s;
}

.hero-dot.active {
  width: 24px;
  border-radius: 4px;
  background: #9ca3af;
}

/* Brand showcase (index) */
.brand-sync-section {
  position: relative;
  overflow: hidden;
}

.brand-left-panel {
  background: var(--spark-brand-red);
}

.brand-text-item {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 700ms ease;
  pointer-events: none;
}

.brand-text-item.active {
  opacity: 1;
  pointer-events: auto;
}

.brand-track {
  position: relative;
  height: 100%;
}

.brand-slide {
  position: absolute;
  inset: 0;
  overflow: hidden;
  opacity: 0;
  transition: opacity 1000ms ease;
  pointer-events: none;
}

.brand-slide.active {
  opacity: 1;
  pointer-events: auto;
  z-index: 1;
}

.brand-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.03);
  opacity: 0.78;
  transition: transform 1200ms ease, opacity 900ms ease;
  filter: saturate(0.92) contrast(1.03);
}

.brand-slide.active img {
  transform: scale(1);
  opacity: 1;
}

/* Transparent nav (index) */
#site-nav {
  background: transparent !important;
  backdrop-filter: none !important;
  border-bottom-color: transparent !important;
  transition: all 0.3s ease;
}

#site-nav.scrolled {
  background: rgba(255, 255, 255, 0.7) !important;
  backdrop-filter: blur(20px) !important;
  border-bottom-color: rgba(142, 112, 109, 0.3) !important;
}

#site-nav a,
#site-nav button,
#site-nav span {
  transition: color 0.3s ease;
}

#site-nav:not(.scrolled) a,
#site-nav:not(.scrolled) button,
#site-nav:not(.scrolled) span {
  color: white !important;
}

#site-nav:not(.scrolled) .text-primary {
  color: white !important;
}

#site-nav:not(.scrolled) #mobile-menu-btn {
  border-color: rgba(255, 255, 255, 0.55) !important;
  color: white !important;
}

@keyframes hero-reveal {
  from {
    clip-path: inset(0 100% 0 0);
    transform: translateX(-8px);
    opacity: 0;
  }
  to {
    clip-path: inset(0 0% 0 0);
    transform: translateX(0);
    opacity: 1;
  }
}

.hero-reveal {
  animation: hero-reveal 1s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.hero-reveal-delay-1 {
  animation-duration: 1.4s;
  animation-delay: 0.2s;
}

.hero-reveal-delay-2 { animation-delay: 0.55s; }
.hero-reveal-delay-3 { animation-delay: 0.8s; }

.scroll-reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 1s ease-out, transform 1s ease-out;
}

.scroll-reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.scroll-reveal-delay-1 { transition-delay: 0.12s; }
.scroll-reveal-delay-2 { transition-delay: 0.24s; }
.scroll-reveal-delay-3 { transition-delay: 0.36s; }
.scroll-reveal-delay-4 { transition-delay: 0.48s; }
.scroll-reveal-delay-5 { transition-delay: 0.6s; }
.scroll-reveal-delay-6 { transition-delay: 0.72s; }

/* Honor timeline (index) */
.honor-timeline {
  position: relative;
  max-width: 960px;
  margin: 0 auto;
  padding: 0.5rem 0 0;
}

.honor-timeline::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: #d8d8d8;
  transform: translateX(-50%);
  z-index: 0;
}

.honor-timeline__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 32px minmax(0, 1fr);
  gap: clamp(1rem, 3vw, 2.75rem);
  align-items: center;
  padding-bottom: 3.25rem;
  position: relative;
}

.honor-timeline__row:last-child {
  padding-bottom: 0;
}

.honor-timeline__axis {
  grid-column: 2;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1;
}

.honor-timeline__dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #8f000d;
  box-shadow: 0 0 0 4px #ebebeb;
  flex-shrink: 0;
}

.honor-timeline__pill {
  display: inline-block;
  padding: 0.45rem 1.4rem;
  background: #8f000d;
  color: #fff;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  border-radius: 9999px;
  white-space: nowrap;
  box-shadow: 0 0 0 6px rgba(143, 0, 13, 0.16);
  border: 2px solid rgba(255, 200, 194, 0.5);
}

.honor-timeline__title {
  color: #8f000d;
  font-weight: 700;
  font-size: 1.125rem;
  line-height: 1.35;
  margin-bottom: 0.5rem;
}

.honor-timeline__media {
  display: block;
  width: 100%;
  max-width: 22rem;
  height: auto;
  margin-bottom: 0.75rem;
  border-radius: 0.25rem;
  object-fit: cover;
}

@media (min-width: 768px) {
  .honor-timeline__row--content-left .honor-timeline__slot-content .honor-timeline__media {
    margin-left: auto;
  }
}

.honor-timeline__text {
  color: #3d3d3d;
  font-size: 0.9375rem;
  line-height: 1.65;
  max-width: 26rem;
}

.honor-timeline__row--content-left .honor-timeline__slot-content {
  grid-column: 1;
  justify-self: end;
  text-align: right;
}

.honor-timeline__row--content-left .honor-timeline__slot-content .honor-timeline__text {
  margin-left: auto;
}

.honor-timeline__row--content-left .honor-timeline__slot-date {
  grid-column: 3;
  justify-self: start;
}

.honor-timeline__row--content-right .honor-timeline__slot-date {
  grid-column: 1;
  justify-self: end;
}

.honor-timeline__row--content-right .honor-timeline__slot-content {
  grid-column: 3;
  justify-self: start;
  text-align: left;
}

@media (max-width: 767px) {
  .honor-timeline::before {
    left: 7px;
    transform: none;
  }

  .honor-timeline__row {
    grid-template-columns: 22px 1fr;
    gap: 0.65rem 1rem;
    padding-left: 0.25rem;
    padding-bottom: 2.25rem;
    align-items: start;
  }

  .honor-timeline__axis {
    grid-column: 1;
    grid-row: 1 / span 2;
    align-self: start;
    padding-top: 0.4rem;
  }

  .honor-timeline__row--content-left .honor-timeline__slot-date,
  .honor-timeline__row--content-right .honor-timeline__slot-date {
    grid-column: 2;
    grid-row: 1;
    justify-self: start;
  }

  .honor-timeline__row--content-left .honor-timeline__slot-content,
  .honor-timeline__row--content-right .honor-timeline__slot-content {
    grid-column: 2;
    grid-row: 2;
    justify-self: start;
    text-align: left;
  }

  .honor-timeline__row--content-left .honor-timeline__slot-content .honor-timeline__text,
  .honor-timeline__text {
    margin-left: 0;
    max-width: none;
  }
}

/* Mission & Vision (index) */
.mission-vision-heading {
  text-align: center;
}

.mission-vision-card {
  position: relative;
  background: #fff8f7;
  border-radius: 16px;
  padding: 2rem 1.75rem;
  border: none;
  box-shadow: 0 4px 20px rgba(38, 24, 22, 0.05);
  overflow: hidden;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1),
              box-shadow 0.4s cubic-bezier(0.4, 0, 0.2, 1),
              background 0.35s ease;
}

@media (min-width: 768px) {
  .mission-vision-card {
    padding: 2.5rem 2.75rem;
  }
}

.mission-vision-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  opacity: 0;
  transition: opacity 0.35s ease;
}

.mission-vision-card--mission::before {
  background: linear-gradient(90deg, #8f000d, #b22222);
}

.mission-vision-card--vision::before {
  background: linear-gradient(90deg, #ffca02, #ffca02);
}

.mission-vision-card__title {
  margin: 0 0 1rem;
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.35;
  color: #261816;
  transition: color 0.3s ease;
}

@media (min-width: 768px) {
  .mission-vision-card__title {
    font-size: 1.75rem;
    margin-bottom: 1.25rem;
  }
}

.mission-vision-card__tag {
  display: inline-block;
  margin-left: 0.5rem;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: #5a403e;
  vertical-align: middle;
  transition: color 0.3s ease;
}

@media (min-width: 768px) {
  .mission-vision-card__tag {
    font-size: 0.75rem;
  }
}

.mission-vision-card__text {
  margin: 0;
  font-size: 1rem;
  line-height: 1.75;
  color: #5a403e;
}

@media (min-width: 768px) {
  .mission-vision-card__text {
    font-size: 1.125rem;
  }
}

@media (hover: hover) {
  .mission-vision-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 40px rgba(38, 24, 22, 0.09);
    background: #ffffff;
  }

  .mission-vision-card:hover::before {
    opacity: 1;
  }

  .mission-vision-card--mission:hover .mission-vision-card__title {
    color: #8f000d;
  }

  .mission-vision-card--mission:hover .mission-vision-card__tag {
    color: #8f000d;
  }

  .mission-vision-card--vision:hover .mission-vision-card__title {
    color: #ffca02;
  }

  .mission-vision-card--vision:hover .mission-vision-card__tag {
    color: #ffca02;
  }
}

/* Achievement stats (index) */
.achievement-card {
  position: relative;
  background: #ffffff;
  border-radius: 16px;
  padding: 1.5rem 1.75rem;
  border: none;
  box-shadow: 0 4px 20px rgba(38, 24, 22, 0.06);
  overflow: hidden;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1),
              box-shadow 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

@media (min-width: 768px) {
  .achievement-card {
    padding: 2.25rem 2.5rem;
  }
}

.achievement-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #8f000d, #ffca02);
  opacity: 0;
  transition: opacity 0.35s ease;
}

.achievement-card__value {
  font-size: 2.25rem;
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: #261816;
  margin-bottom: 0.75rem;
  transition: color 0.3s ease, transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

@media (min-width: 768px) {
  .achievement-card__value {
    font-size: 3rem;
    margin-bottom: 1rem;
  }
}

.achievement-card__suffix {
  color: #ffca02;
  transition: color 0.3s ease;
}

.achievement-card__label {
  margin: 0;
  font-size: 1rem;
  line-height: 1.65;
  color: #5a403e;
}

@media (hover: hover) {
  .achievement-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 40px rgba(38, 24, 22, 0.1);
  }

  .achievement-card:hover::before {
    opacity: 1;
  }

  .achievement-card:hover .achievement-card__value {
    color: #8f000d;
    transform: scale(1.02);
    transform-origin: left center;
  }

  .achievement-card:hover .achievement-card__suffix {
    color: #ffca02;
  }
}

/* Program cards (operation-mode, family-events) */
.program-cards-section {
  background: #ebebeb;
}

.program-cards-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
  justify-content: center;
}

@media (min-width: 768px) {
  .program-cards-grid {
    grid-template-columns: repeat(3, minmax(0, 320px));
    column-gap: 2.5rem;
    row-gap: 2.5rem;
    justify-content: center;
  }
}

.program-card {
  display: flex;
  flex-direction: column;
  background: #ffffff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
  transition: box-shadow 0.4s ease, transform 0.4s ease;
}

a.program-card {
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}

a.program-card:focus-visible {
  outline: 2px solid #8f000d;
  outline-offset: 2px;
}

.program-card__media {
  overflow: hidden;
  border-radius: 10px 10px 0 0;
}

.program-card__media img {
  display: block;
  width: 100%;
  height: 14rem;
  object-fit: cover;
  border-radius: 10px 10px 0 0;
  transition: transform 0.55s cubic-bezier(0.4, 0, 0.2, 1);
}

@media (min-width: 768px) {
  .program-card__media img {
    height: 12rem;
  }
}

.program-card__body {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 1rem 1rem 1.125rem;
  background: #ffffff;
  color: #261816;
  text-align: left;
}

.program-card__title {
  margin: 0 0 0.5rem;
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.35;
  color: #261816;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
}

.program-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin: 0 0 0.25rem;
  font-size: 0.8125rem;
  font-weight: 600;
  line-height: 1.35;
  color: #5a403e;
}

.program-card__desc {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.5;
  min-height: calc(0.875rem * 1.5 * 3);
  color: #5a403e;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  overflow: hidden;
}

.program-card__btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1rem;
  padding: 0.45rem 1.05rem 0.45rem 0.5rem;
  background: #ffffff;
  color: #261816;
  font-size: 0.8125rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 9999px;
  align-self: flex-start;
  transition: background 0.3s ease, color 0.3s ease, padding 0.35s cubic-bezier(0.4, 0, 0.2, 1), gap 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.program-card__btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: inherit;
  font-size: 0.875rem;
  line-height: 1;
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), color 0.3s ease;
}

@media (hover: hover) {
  .program-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 36px rgba(0, 0, 0, 0.1);
  }

  .program-card:hover .program-card__media img {
    transform: scale(1.05);
  }

  .program-card:hover .program-card__btn {
    background: #ffffff;
    color: #8f000d;
    padding-right: 1.375rem;
    gap: 0.625rem;
  }

  .program-card:hover .program-card__btn-icon {
    transform: translateX(2px);
  }

  .program-card__btn:hover .program-card__btn-icon {
    transform: translateX(4px);
  }
}

/* Development history architecture tier headings (SRD / RD / SRM / RM) */
#family-structure .history-arch-tier-heading {
  font-size: 1.25rem;
  line-height: 1.35;
  font-weight: 600;
  color: var(--spark-brand-red);
  text-align: center;
}

@media (min-width: 768px) {
  #family-structure .history-arch-tier-heading {
    font-size: 1.875rem;
    line-height: 2.25rem;
    font-weight: 700;
  }
}

/* Development history architecture person cards */
#family-structure .history-arch-card {
  display: flex;
  flex-direction: column;
  width: 100%;
  height: 470px;
  overflow: hidden;
  background: #fff;
}

@media (min-width: 768px) {
  #family-structure .history-arch-card {
    height: 510px;
  }
}

@media (min-width: 1024px) {
  #family-structure .history-arch-card {
    height: 570px;
  }
}

#family-structure .history-arch-card__photo {
  flex: 1;
  min-height: 0;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  overflow: hidden;
  background: #fff;
}

#family-structure .history-arch-card__photo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: bottom center;
}

#family-structure .history-arch-card__body {
  flex-shrink: 0;
  min-height: 14.25rem;
  padding: 0.25rem 0.625rem 0.75rem;
  text-align: center;
  background: #fff;
}

#family-structure .history-arch-card__name {
  margin: 0;
  font-size: 1rem;
  line-height: 1.6;
  font-weight: 400;
  color: #444;
}

#family-structure .history-arch-card__divider {
  margin: 0.5rem auto 0.625rem;
  width: 92%;
  border: 0;
  border-top: 1px solid #ccc;
}

#family-structure .history-arch-card__intro {
  margin: 0;
  padding: 0;
  list-style: none;
}

#family-structure .history-arch-card__intro li {
  min-height: 2em;
  font-size: 0.875rem;
  line-height: 2;
  color: #444;
}

#family-structure .history-arch-card__intro li::before {
  content: "· ";
}

#family-structure .history-arch-card__intro li.history-arch-card__intro-line--plain::before,
#family-structure .history-arch-card__intro li:empty::before {
  content: "";
}

/* Leader card: desktop left photo / right text; mobile same as other cards */
#family-structure .history-arch-leader-wrap {
  width: 100%;
}

@media (min-width: 768px) {
  #family-structure .history-arch-leader-wrap {
    max-width: 56rem;
    margin-inline: auto;
  }

  #family-structure .history-arch-card--leader {
    flex-direction: row;
    align-items: stretch;
    height: auto !important;
    min-height: 34rem;
  }

  #family-structure .history-arch-card--leader .history-arch-card__photo {
    flex: 1 1 50%;
    min-width: 0;
    align-items: center;
  }

  #family-structure .history-arch-card--leader .history-arch-card__photo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center center;
  }

  #family-structure .history-arch-card--leader .history-arch-card__body {
    flex: 1 1 50%;
    min-width: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 0;
    padding: 2rem 1.75rem 2rem 1.25rem;
    text-align: left;
  }

  #family-structure .history-arch-card--leader .history-arch-card__divider {
    margin-left: 0;
    margin-right: auto;
    width: 65%;
  }

  #family-structure .history-arch-card--leader .history-arch-card__name {
    font-size: 1.875rem;
    font-weight: 700;
    color: #2c2c2c;
  }

  #family-structure .history-arch-card--leader .history-arch-card__intro li {
    font-size: 1.0625rem;
    line-height: 2.1;
    min-height: 0;
  }
}

@media (max-width: 767px) {
  #family-structure .history-arch-card {
    height: auto;
    max-width: min(21.9375rem, 100%);
    margin-inline: auto;
  }

  #family-structure .history-arch-card__photo {
    flex: none;
  }

  #family-structure .history-arch-card__photo img {
    width: min(21.9375rem, 100%);
    max-width: min(21.9375rem, 100%);
    height: auto;
  }
}

/* Page hero layout (development-history, operation-mode, monthly-star, family-events) */
.history-hero__media {
  width: 100%;
  flex-shrink: 0;
}

.history-hero__content {
  width: 100%;
}

.history-hero__content h1 {
  color: #2C2C2C;
}

@media (min-width: 768px) {
  .history-hero__media {
    width: 60%;
  }

  .history-hero__content {
    width: 40%;
  }
}

/* Page hero description (development-history, operation-mode, monthly-star, family-events) */
.history-hero__desc {
  font-size: 1rem;
  line-height: 1.45;
  color: #2C2C2C;
  max-width: 36rem;
}

@media (min-width: 640px) {
  .history-hero__desc {
    font-size: 1.125rem;
    line-height: 1.5;
  }
}

@media (min-width: 768px) {
  .history-hero__desc {
    font-size: 1.25rem;
    line-height: 1.5;
  }
}

/* Operation-mode section body copy — mobile matches founder「创始人寄语」 */
.operation-section-desc {
  color: #000;
  font-size: 15px;
  line-height: 1.625;
}

@media (min-width: 768px) {
  .operation-section-desc {
    color: #374151;
    font-size: 1.125rem;
  }
}

/* Development history section nav */
.history-section-nav {
  background: #ffffff;
  border-bottom: 1px solid #e7e1d7;
}

.history-section-nav__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-start;
  gap: 1rem 1.5rem;
  padding: 1.5rem 1rem;
}

@media (min-width: 768px) {
  .history-section-nav__inner {
    justify-content: flex-end;
    padding: 2rem 4rem;
    gap: 2rem;
  }
}

.history-section-nav__btn {
  display: inline-flex;
  align-items: center;
  gap: 0.125rem;
  padding: 0.625rem 1.25rem;
  border: none;
  border-radius: 9999px;
  background: var(--spark-brand-red);
  color: #ffffff;
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.2s ease, transform 0.2s ease;
}

.history-section-nav__btn:hover {
  background: var(--spark-brand-red-hover);
  color: #ffffff;
}

/* Activity list (family-events) */
.activity-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  margin-top: 2.5rem;
  flex-wrap: wrap;
}

.activity-pagination__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.25rem;
  height: 2.25rem;
  padding: 0 0.5rem;
  border: 1px solid rgba(38, 24, 22, 0.15);
  border-radius: 6px;
  background: #ffffff;
  color: #5a403e;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.activity-pagination__btn:hover:not(:disabled):not(.is-active) {
  border-color: #8f000d;
  color: #8f000d;
}

.activity-pagination__btn.is-active {
  background: #8f000d;
  border-color: #8f000d;
  color: #ffffff;
  font-weight: 600;
  cursor: default;
}

.activity-pagination__btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.activity-pagination__ellipsis {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.25rem;
  height: 2.25rem;
  color: #5a403e;
  font-size: 0.875rem;
  user-select: none;
}

.activity-filter {
  background: #ebebeb;
  border-top: 1px solid #e7e1d7;
}

.activity-filter__list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.625rem;
}

.activity-filter__btn {
  padding: 0.5rem 1.125rem;
  border: 1px solid rgba(38, 24, 22, 0.15);
  border-radius: 9999px;
  background: #ffffff;
  color: #5a403e;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.activity-filter__btn:hover:not(.is-active) {
  border-color: #8f000d;
  color: #8f000d;
}

.activity-filter__btn.is-active {
  background: #8f000d;
  border-color: #8f000d;
  color: #ffffff;
  font-weight: 600;
}

@media (max-width: 767px) {
  .activity-filter__list {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0.5rem;
  }

  .activity-filter__btn {
    width: 100%;
    padding: 0.5rem 0.375rem;
    font-size: 0.8125rem;
    white-space: nowrap;
  }
}

/* Monthly star rankings */
.manager-rank-section {
  background: #ebebeb;
  border-top: 1px solid #E7E1D7;
}

.manager-rank-section h2 {
  font-family: Inter, "Noto Sans SC", "Microsoft YaHei", "PingFang SC", system-ui, sans-serif;
  font-size: 1.5rem;
  line-height: 2rem;
  font-weight: 600;
  color: #2C2C2C;
  letter-spacing: -0.025em;
}

@media (min-width: 768px) {
  .manager-rank-section h2 {
    font-size: 36px;
    line-height: 1.25;
    color: #2C2C2C;
  }
}

.manager-card {
  background: #ebebeb;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: none;
}

.manager-avatar {
  width: 92px;
  height: 92px;
  flex-shrink: 0;
  overflow: hidden;
  border-radius: 50%;
}

.manager-avatar img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
}

.manager-card .flex > div:last-child {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.manager-card .flex > div:last-child p {
  font-size: 18px;
  line-height: 1.5;
}

.manager-card .flex > div:last-child p.mt-1 {
  margin-top: 0;
}

@media (min-width: 768px) {
  .manager-avatar {
    width: 124px;
    height: 124px;
  }
}

@media (max-width: 767px) {
  .manager-card > .flex {
    width: 14.5rem;
    max-width: 100%;
    margin-inline: auto;
    justify-content: flex-start;
    align-items: center;
  }

  .manager-avatar {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .manager-rank-section h2 {
    text-align: center;
  }
}

/* Footer address hanging indent: wrap aligns under address text, not "地址：" */
footer .footer-address {
  display: block;
  padding-left: 3em;
  text-indent: -3em;
}

/* Footer desktop layout */
@media (min-width: 768px) {
  footer nav[aria-label="网站菜单"] {
    margin-left: 2rem;
  }
}

/* Footer mobile layout */
@media (max-width: 767px) {
  footer nav[aria-label="网站菜单"] {
    justify-content: center;
  }

  footer nav[aria-label="网站菜单"] > div {
    align-items: center;
  }

  footer .grid > .col-span-1.flex.flex-row.items-start {
    justify-content: center;
    margin-left: 0;
  }

  footer .grid > .col-span-1.flex.flex-row.items-start .flex.flex-col {
    align-items: center;
  }

  footer .grid > .col-span-1.flex.flex-row.items-start p {
    text-align: center;
  }
}

/* Spark training system (operation-mode) */
.training-system {
  --ts-bg: #ffffff;
  --ts-accent: #8f000d;
  --ts-accent-soft: rgba(143, 0, 13, 0.12);
  --ts-text: #1a1a1a;
  --ts-muted: #5a5a5a;
  position: relative;
  margin-top: 2.5rem;
  padding: 2.25rem 1.25rem 2.5rem;
  border-radius: 18px;
  background: #ffffff;
  overflow: visible;
}

@media (min-width: 768px) {
  .training-system {
    margin-top: 3rem;
    padding: 2.75rem 1.5rem 3rem;
  }
}

.training-system__defs {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
  pointer-events: none;
}

.training-system__header {
  text-align: center;
  margin-bottom: 1.75rem;
}

@media (min-width: 768px) {
  .training-system__header {
    margin-bottom: 2.25rem;
  }
}

.training-system__subtitle {
  margin: 0.65rem auto 0;
  max-width: 28rem;
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--ts-muted);
}

.training-system__track {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
}

@media (min-width: 900px) {
  .training-system__track {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    align-items: start;
    justify-items: center;
    gap: 0 0.5rem;
    overflow: visible;
  }
}

.training-gear-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: min(16.5rem, 100%);
  cursor: default;
}

@media (min-width: 900px) {
  .training-gear-card {
    width: 100%;
    max-width: none;
    position: relative;
  }

  .training-gear-card:nth-child(1) { z-index: 1; }
  .training-gear-card:nth-child(2) { z-index: 2; }
  .training-gear-card:nth-child(3) { z-index: 3; }
  .training-gear-card:nth-child(4) { z-index: 4; }
}

.training-gear-card__visual {
  position: relative;
  width: min(12.5rem, 72vw);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
}

@media (min-width: 900px) {
  .training-gear-card__visual {
    width: 118%;
    max-width: none;
  }
}

.training-gear-card__spin {
  width: 100%;
  height: 100%;
  will-change: transform;
  transition: filter 0.35s ease;
}

.training-gear-card__spin--cw {
  animation: training-gear-cw 26s linear infinite;
}

.training-gear-card__spin--ccw {
  animation: training-gear-ccw 26s linear infinite;
}

.training-gear-card__svg {
  display: block;
  width: 100%;
  height: 100%;
  overflow: visible;
}

.training-gear-card__label {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  z-index: 2;
  text-align: center;
  padding: 0.5rem;
}

.training-gear-card__stage {
  font-family: "Noto Serif SC", "Songti SC", "SimSun", serif;
  font-size: clamp(0.95rem, 2.4vw, 1.125rem);
  font-weight: 700;
  line-height: 1.25;
  color: #8f000d;
  text-shadow: none;
}

.training-gear-card__en {
  margin-top: 0.2rem;
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: #8f000d;
}

.training-gear-card__courses {
  list-style: none;
  margin: 1.15rem 0 0;
  padding: 0;
  width: 100%;
  max-width: 14rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  text-align: center;
  transition: transform 0.4s ease;
}

.training-course {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  width: 100%;
}

.training-course__tag {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  line-height: 1.4;
  color: #8f000d;
  background: var(--ts-accent-soft);
  border: 1px solid rgba(143, 0, 13, 0.28);
}

.training-course__desc {
  font-size: 0.8125rem;
  line-height: 1.55;
  color: #374151;
}

@media (hover: hover) {
  .training-gear-card__courses {
    transform: translateY(0.65rem);
  }

  .training-gear-card:hover .training-gear-card__courses {
    transform: translateY(0);
  }

  .training-gear-card:hover .training-gear-card__spin {
    filter: brightness(1.12) drop-shadow(0 0 10px rgba(232, 90, 42, 0.35));
  }

  .training-gear-card:hover .training-gear-card__spin--cw {
    animation-duration: 5s;
  }

  .training-gear-card:hover .training-gear-card__spin--ccw {
    animation-duration: 5s;
  }
}

@keyframes training-gear-cw {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes training-gear-ccw {
  from { transform: rotate(0deg); }
  to { transform: rotate(-360deg); }
}

@media (prefers-reduced-motion: reduce) {
  .training-gear-card__spin--cw,
  .training-gear-card__spin--ccw,
  .training-gear-card:hover .training-gear-card__spin--cw,
  .training-gear-card:hover .training-gear-card__spin--ccw {
    animation: none;
  }

  .training-gear-card__courses,
  .training-gear-card:hover .training-gear-card__courses {
    transform: none;
  }
}

/* Digital platform logos (operation-mode) */
.digital-platform-item {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: 9rem;
  margin: 0;
  padding: 0;
}

.digital-platform-item__img {
  display: block;
  width: 100%;
  max-width: 7.5rem;
  height: auto;
  object-fit: contain;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1),
              filter 0.35s ease;
}

@media (min-width: 768px) {
  .digital-platform-item {
    max-width: 10.5rem;
  }

  .digital-platform-item__img {
    max-width: 9rem;
  }
}

@media (hover: hover) {
  .digital-platform-item:hover .digital-platform-item__img {
    transform: scale(1.06);
    filter: brightness(1.04);
  }
}