/* 舒瑞脑健康 — 官网样式（亮色主题） */
:root {
  --bg: #f4f7fb;
  --bg-subtle: #e8eef6;
  --bg-panel: #ffffff;
  --text: #152232;
  --text-muted: #4a5d73;
  --accent: #0f766e;
  --accent-light: #ccfbf1;
  --accent-hover: #115e59;
  --accent-warm: #c2410c;
  --accent-warm-bg: #fff7ed;
  --border: rgba(21, 34, 50, 0.1);
  --shadow: 0 12px 40px rgba(21, 34, 50, 0.08);
  --shadow-sm: 0 4px 16px rgba(21, 34, 50, 0.06);
  --radius: 14px;
  --radius-sm: 8px;
  --font-display: "Bricolage Grotesque", system-ui, sans-serif;
  --font-body: "Literata", Georgia, serif;
  /* 固定顶栏占位：略大于单行导航，换行时仍不易被遮挡 */
  --header-offset: 6.25rem;
  /* 主内容最大宽度（全站统一，不随超宽屏放大） */
  --max: 1120px;
  --page-pad: clamp(1.25rem, 4vw, 2.75rem);
  --block-gap: 1.25rem;
  --block-gap-lg: 1.5rem;
  --read-max: 44rem;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  margin: 0;
  padding-top: var(--header-offset);
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

/* 锚点跳转时标题不被固定导航遮挡 */
main [id] {
  scroll-margin-top: calc(var(--header-offset) + 0.75rem);
}

h1,
h2,
h3,
.section-head h2,
.logo-text,
.btn,
.nav-cta,
.hero-eyebrow,
.contact-label,
.footer-brand,
.principle-card h3,
.feature-card h3 {
  font-family: var(--font-display);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -100px;
  z-index: 9999;
  padding: 0.5rem 1rem;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: top 0.2s;
}

.skip-link:focus {
  top: calc(var(--header-offset) + 0.35rem);
}

.container {
  width: min(100% - 2 * var(--page-pad), var(--max));
  margin-inline: auto;
  box-sizing: border-box;
}

.container.narrow {
  width: min(100% - 2 * var(--page-pad), 42rem);
  margin-inline: auto;
  box-sizing: border-box;
}

/* Header：固定顶栏，滚动时始终可见 */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: min(100% - 2 * var(--page-pad), var(--max));
  margin-inline: auto;
  min-height: var(--header-offset);
  padding-block: 0.5rem;
  box-sizing: border-box;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--text);
  font-weight: 700;
  font-size: 1.3rem;
}

.logo-mark {
  display: block;
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  object-fit: contain;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(15, 118, 110, 0.22);
}

.logo-mark--sm {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  display: inline-block;
  vertical-align: middle;
  margin-right: 0.35rem;
  box-shadow: 0 1px 6px rgba(15, 118, 110, 0.18);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-panel);
  cursor: pointer;
  position: relative;
}

.nav-toggle-bar,
.nav-toggle-bar::before,
.nav-toggle-bar::after {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text);
  margin: 0 auto;
  border-radius: 1px;
  transition: transform 0.2s, opacity 0.2s;
}

.nav-toggle-bar::before,
.nav-toggle-bar::after {
  content: "";
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.nav-toggle-bar::before {
  top: 14px;
}

.nav-toggle-bar::after {
  bottom: 14px;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar {
  background: transparent;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar::before {
  top: 21px;
  transform: translateX(-50%) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar::after {
  bottom: 21px;
  transform: translateX(-50%) rotate(-45deg);
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 1.25rem;
}

.site-nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 1.2rem;
  font-weight: 700;
  padding: 0.35rem 0;
  transition: color 0.2s;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--accent);
}

.nav-cta {
  padding: 0.3rem 1.85rem !important;
  font-size: 1.2rem;
  font-weight: 700;
  line-height: 1.2;
  border-radius: 999px;
  background: var(--accent-light);
  color: var(--accent-hover) !important;
  border: 1px solid rgba(15, 118, 110, 0.25);
}

@media (max-width: 900px) {
  .nav-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .site-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    flex-direction: column;
    align-items: stretch;
    padding: 1rem 1.5rem 1.25rem;
    background: #fff;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    gap: 0;
    display: none;
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    padding: 0.65rem 0;
    border-bottom: 1px solid var(--border);
  }

  .site-nav a:last-child {
    border-bottom: 0;
    margin-top: 0.5rem;
    text-align: center;
  }

  .nav-cta {
    padding: 0.42rem 1.75rem !important;
  }
}

/* Hero */
.hero {
  position: relative;
  padding: clamp(3rem, 8vw, 5.5rem) 0 clamp(4rem, 10vw, 6rem);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 90% 70% at 85% 0%, rgba(20, 184, 166, 0.14), transparent 55%),
    radial-gradient(ellipse 55% 45% at 10% 70%, rgba(234, 88, 12, 0.08), transparent 50%),
    linear-gradient(180deg, #ffffff 0%, var(--bg) 100%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
}

.hero-split {
  display: grid;
  gap: var(--block-gap-lg);
  align-items: stretch;
}

@media (min-width: 900px) {
  .hero-split {
    grid-template-columns: minmax(0, 1.05fr) minmax(280px, min(42vw, 460px));
    gap: clamp(1.75rem, 4vw, 3.5rem);
    align-items: center;
  }
}

.hero-visual {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.hero-figure {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 5/6;
  object-fit: cover;
}

.hero-mini-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.5rem;
}

.hero-mini-grid img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

/* 横滑场景带 */
.media-strip {
  padding: 0 0 0.5rem;
  overflow: hidden;
  border-block: 1px solid var(--border);
  background: var(--bg-panel);
}

.media-strip-track {
  display: flex;
  gap: 0.65rem;
  padding: 0.85rem max(1.25rem, calc((100vw - var(--max)) / 2 + 1.25rem));
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
}

.media-strip-track img {
  flex: 0 0 min(72vw, 280px);
  width: min(72vw, 280px);
  height: 180px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  scroll-snap-align: start;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.hero-eyebrow {
  margin: 0 0 1rem;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
}

.hero h1 {
  margin: 0 0 1.25rem;
  font-size: clamp(2.25rem, 5vw, 3.35rem);
  line-height: 1.12;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}

.hero-accent {
  background: linear-gradient(105deg, #0d9488, #2dd4bf);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-lead {
  max-width: min(38rem, 100%);
  margin: 0 0 2rem;
  color: var(--text-muted);
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.35rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.15s, box-shadow 0.2s, background 0.2s;
}

.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.btn-primary {
  background: linear-gradient(135deg, #14b8a6, #0d9488);
  color: #fff;
  box-shadow: 0 8px 24px rgba(15, 118, 110, 0.28);
}

.btn-primary:hover {
  transform: translateY(-2px);
}

.btn-ghost {
  background: var(--bg-panel);
  color: var(--text);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.hero-stats li {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.hero-stats strong {
  font-size: 1.75rem;
  color: var(--accent);
  font-family: var(--font-display);
}

.hero-stats span {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Sections：与 .container 同宽对齐 */
.section {
  padding: clamp(3.5rem, 5vw, 5.5rem) 0;
}

.section > .container {
  display: flex;
  flex-direction: column;
  align-items: stretch;
}

.section-alt {
  background: linear-gradient(180deg, var(--bg-subtle) 0%, var(--bg) 100%);
}

.section-head {
  text-align: center;
  max-width: var(--read-max);
  margin: 0 auto 2.5rem;
  width: 100%;
}

.section-head h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.75rem, 3vw, 2.15rem);
  font-weight: 700;
  color: var(--text);
}

.section-head p {
  margin: 0;
  color: var(--text-muted);
}

.section-note {
  text-align: center;
  max-width: var(--read-max);
  margin: 2rem auto 0;
  color: var(--text-muted);
  font-size: 0.95rem;
  width: 100%;
}

/* 图文：介绍区与横幅 */
.intro-with-media {
  display: grid;
  gap: var(--block-gap-lg);
  align-items: stretch;
  margin-bottom: 2rem;
  width: 100%;
}

@media (min-width: 768px) {
  .intro-with-media {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: stretch;
  }
}

.intro-media {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  min-height: 200px;
}

.intro-media img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 220px;
  object-fit: cover;
}

.intro-with-media .principle-intro {
  margin: 0;
  max-width: none;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 0;
}

.img-banner {
  margin: 0 0 2rem;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.img-banner img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 320px;
  object-fit: cover;
}

figure {
  margin: 0;
}

.card-media {
  margin: 0;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--bg-subtle);
}

.card-media--short {
  aspect-ratio: 16 / 9;
}

.card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.35s ease;
}

.principle-card:hover .card-media img,
.feature-card:hover .card-media img {
  transform: scale(1.04);
}

.card-body {
  padding: 1.5rem 1.6rem 1.6rem;
}

/* Principle blocks（小游戏 / 认知评估等） */
.principle-intro p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.98rem;
}

.principle-grid {
  display: grid;
  gap: var(--block-gap-lg);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
  width: 100%;
  align-items: stretch;
}

.principle-card {
  padding: 0;
  overflow: hidden;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s, border-color 0.2s;
  display: flex;
  flex-direction: column;
  min-height: 100%;
}

.principle-card--text .card-body {
  flex: 1;
}

.principle-card:hover {
  border-color: rgba(15, 118, 110, 0.22);
  box-shadow: var(--shadow);
}

.principle-card .card-body h3 {
  margin: 0 0 0.75rem;
  font-size: 1.15rem;
  color: var(--text);
}

.principle-card .card-body p {
  margin: 0 0 0.65rem;
  font-size: 0.92rem;
  color: var(--text-muted);
}

.principle-card .card-body p:last-child {
  margin-bottom: 0;
}

.principle-lead {
  font-family: var(--font-display);
  font-size: 0.75rem !important;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent) !important;
  margin-top: 0.85rem !important;
  margin-bottom: 0.35rem !important;
}

.principle-lead:first-of-type {
  margin-top: 0 !important;
}

.principle-stack {
  display: flex;
  flex-direction: column;
  gap: var(--block-gap-lg);
  width: 100%;
  max-width: none;
  margin: 0;
}

/* 认知评估：头图与图文行 */
.assess-hero {
  display: grid;
  gap: var(--block-gap-lg);
  margin-bottom: 2rem;
  width: 100%;
  align-items: stretch;
}

@media (min-width: 768px) {
  .assess-hero {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
  }
}

.assess-hero-main {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  min-height: 200px;
}

.assess-hero-main img {
  width: 100%;
  height: 100%;
  min-height: 240px;
  object-fit: cover;
  display: block;
}

.assess-hero-side {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.assess-hero-side figure {
  margin: 0;
  flex: 1;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--border);
  min-height: 120px;
}

.assess-hero-side img {
  width: 100%;
  height: 100%;
  min-height: 140px;
  object-fit: cover;
  display: block;
}

.assess-hero-secondary {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  min-height: 180px;
}

.assess-hero-secondary img {
  width: 100%;
  height: 100%;
  min-height: 200px;
  object-fit: cover;
  display: block;
}

.assess-row {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 0 !important;
  overflow: hidden;
}

@media (min-width: 640px) {
  .assess-row {
    flex-direction: row;
    align-items: stretch;
  }

  .assess-row--reverse {
    flex-direction: row-reverse;
  }

  .assess-row-img {
    flex: 0 0 38%;
    max-width: 280px;
  }
}

.assess-row-img {
  margin: 0;
}

.assess-row-img img {
  width: 100%;
  height: 100%;
  min-height: 160px;
  object-fit: cover;
  display: block;
}

.assess-row-copy {
  padding: 1.35rem 1.5rem 1.5rem;
}

.assess-row-copy h3 {
  margin: 0 0 0.6rem;
}

.assess-row-copy p {
  margin: 0;
}

.assess-block-text h3 {
  margin: 0 0 0.6rem;
  font-size: 1.08rem;
  font-family: var(--font-display);
  color: var(--text);
}

.assess-block-text p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.card-soft {
  padding: 1.5rem 1.75rem;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.disclaimer {
  margin: 1.75rem auto 0;
  max-width: var(--read-max);
  width: 100%;
  font-size: 0.9rem;
  color: var(--accent-warm);
  background: var(--accent-warm-bg);
  border: 1px solid rgba(194, 65, 12, 0.2);
  border-radius: var(--radius-sm);
  padding: 1rem 1.15rem;
}

.disclaimer--center {
  text-align: center;
}

/* Training cards */
.card-grid {
  display: grid;
  gap: var(--block-gap-lg);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
  width: 100%;
  align-items: stretch;
}

@media (min-width: 1100px) {
  .card-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.training-hero-duo {
  display: grid;
  gap: 1rem;
  margin-bottom: 2rem;
}

@media (min-width: 700px) {
  .training-hero-duo {
    grid-template-columns: 1fr 1fr;
  }
}

.training-hero-duo figure {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.training-hero-duo img {
  display: block;
  width: 100%;
  height: auto;
  min-height: 200px;
  max-height: 280px;
  object-fit: cover;
}

.training-hero-single {
  margin: 0 0 2rem;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  width: 100%;
}

.training-hero-single img {
  display: block;
  width: 100%;
  height: auto;
  max-height: min(380px, 42vh);
  object-fit: cover;
}

.principle-card--text {
  padding: 0;
}

.feature-card--text {
  padding: 0;
}

.feature-card {
  padding: 0;
  overflow: hidden;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
  display: flex;
  flex-direction: column;
  min-height: 100%;
}

.feature-card-body {
  padding: 1.25rem 1.5rem 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.feature-card:hover {
  border-color: rgba(15, 118, 110, 0.2);
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.feature-icon {
  display: block;
  font-size: 1.5rem;
  color: var(--accent-warm);
  margin-bottom: 0.5rem;
}

.feature-card-body h3 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
}

.feature-card-body p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--text-muted);
}

/* 脑健康科普：少量配图 + 列表 */
.science-visuals {
  display: grid;
  gap: var(--block-gap-lg);
  margin-bottom: 2rem;
  width: 100%;
  align-items: stretch;
}

@media (min-width: 720px) {
  .science-visuals {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  }
}

.science-visual {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.science-visual img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 200px;
  max-height: 280px;
  object-fit: cover;
}

.science-visual--secondary img {
  max-height: 260px;
}

.science-list {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: sci;
  display: grid;
  gap: var(--block-gap);
  grid-template-columns: 1fr;
}

@media (min-width: 1100px) {
  .science-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--block-gap-lg);
  }
}

.science-list li {
  counter-increment: sci;
  position: relative;
  padding: 1.25rem 1.25rem 1.25rem 3.5rem;
  margin: 0;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  min-height: 100%;
  box-sizing: border-box;
}

.science-list li::before {
  content: counter(sci);
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 50%;
  background: var(--accent-light);
  color: var(--accent);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.science-list strong {
  display: block;
  margin-bottom: 0.25rem;
  font-family: var(--font-display);
  color: var(--text);
}

.science-list span {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.about-split {
  display: grid;
  gap: var(--block-gap-lg);
  align-items: stretch;
  width: 100%;
  max-width: none;
  margin: 0;
}

@media (min-width: 860px) {
  .about-split {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 1fr);
  }
}

.about-gallery {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.about-gallery-main {
  width: 100%;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  object-fit: cover;
  max-height: min(400px, 50vh);
  display: block;
}

.about-gallery-sub {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.65rem;
}

.about-gallery-sub img {
  width: 100%;
  height: 140px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.about-split .about-card.about-copy {
  min-height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.about-copy p {
  margin: 0 0 1rem;
  color: var(--text-muted);
}

.about-bullets {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.about-bullets li {
  margin-bottom: 0.35rem;
}

/* Contact */
.section-contact {
  padding-bottom: 4rem;
}

.contact-split {
  display: grid;
  gap: var(--block-gap-lg);
  align-items: stretch;
  width: 100%;
  max-width: none;
  margin: 0;
}

@media (min-width: 800px) {
  .contact-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }
}

.contact-visual {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  min-height: 280px;
}

.contact-visual img {
  width: 100%;
  height: 100%;
  min-height: 320px;
  object-fit: cover;
  display: block;
}

.contact-card {
  max-width: none;
  margin-inline: 0;
}

.contact-split .contact-card {
  min-height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.contact-thumbs {
  display: flex;
  gap: 0.5rem;
  margin-top: 1.25rem;
  flex-wrap: wrap;
}

.contact-thumbs img {
  width: 72px;
  height: 72px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.contact-list li {
  margin-bottom: 0.85rem;
  font-style: normal;
}

.contact-list a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}

.contact-list a:hover {
  text-decoration: underline;
}

.contact-label {
  display: inline-block;
  min-width: 3rem;
  color: var(--text-muted);
  font-size: 0.8rem;
  margin-right: 0.5rem;
}

/* Footer */
.site-footer {
  padding: 2rem 0 2.5rem;
  border-top: 1px solid var(--border);
  background: var(--bg-subtle);
}

.footer-inner {
  text-align: center;
}

.footer-links {
  margin: 0 0 0.5rem;
  font-size: 0.9rem;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--accent);
  text-decoration: underline;
}

/* 独立页：关于我们 */
.page-intro {
  padding-bottom: 2rem;
}

.page-title {
  margin: 0 0 0.75rem;
  font-size: clamp(1.75rem, 3.5vw, 2.25rem);
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--text);
}

.page-lead {
  margin: 0 0 1rem;
  color: var(--text-muted);
  font-size: 1.05rem;
}

.page-intro-links {
  margin: 0;
  font-size: 0.95rem;
}

.text-link {
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
}

.text-link:hover {
  text-decoration: underline;
}

.page-intro-sep {
  margin: 0 0.35rem;
  color: var(--text-muted);
}

/* 首页底部引导至 about 页 */
.section-cta-page {
  text-align: center;
  background: linear-gradient(180deg, var(--bg-subtle) 0%, var(--bg) 100%);
  border-top: 1px solid var(--border);
}

.cta-page-title {
  margin: 0 0 0.65rem;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.5vw, 1.65rem);
  font-weight: 700;
}

.cta-page-text {
  margin: 0 0 1.25rem;
  color: var(--text-muted);
}

.footer-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  font-weight: 600;
  color: var(--text);
}

.footer-copy,
.footer-icp {
  margin: 0.35rem 0;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-icp a {
  color: var(--text-muted);
  text-decoration: none;
}

.footer-icp a:hover {
  color: var(--accent);
}