:root {
  /* Brand palette: sky blue + vibrant orange */
  --brand-blue: #1a6fc4;
  --brand-blue-deep: #1253a3;
  --brand-blue-soft: #dbeafe;
  --brand-blue-mist: #eff6ff;
  --brand-orange: #f46b18;
  --brand-orange-deep: #d9560a;
  --brand-orange-soft: #fff1e6;
  --brand-orange-glow: rgba(244, 107, 24, 0.22);
  --site-sticky-offset: 96px;

  --bg: #f3f7fc;
  --bg-wash: #e8f1fb;
  --card: #ffffff;
  --text: #142433;
  --muted: #4d5f6f;
  --accent: var(--brand-blue);
  --accent-hover: var(--brand-blue-deep);
  --accent-highlight: var(--brand-orange);
  --border: #d4e4f4;
  --radius: 14px;
  --shadow: 0 10px 40px rgba(18, 80, 140, 0.09);
  --shadow-orange: 0 14px 36px var(--brand-orange-glow);
  --maxw: 1024px;
  --maxw-wide: clamp(992px, 92vw, 1180px);
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-soft: cubic-bezier(0.33, 1, 0.68, 1);
  --dur-fade: 0.65s;

  /* Frosted glass */
  --glass-radius: 16px;
  --glass-bg: color-mix(in srgb, #ffffff 71%, transparent);
  --glass-bg-strong: color-mix(in srgb, #ffffff 88%, transparent);
  --glass-blur: 20px;
  --glass-blur-strip: 18px;
  --glass-saturate: 172%;
  --glass-border: color-mix(in srgb, #ffffff 58%, var(--border) 42%);
  --glass-shadow:
    0 12px 42px rgba(18, 75, 135, 0.09),
    0 1px 0 rgba(255, 255, 255, 0.78) inset;
  --glass-shadow-strong:
    0 14px 48px rgba(18, 82, 140, 0.1),
    0 1px 0 rgba(255, 255, 255, 0.82) inset;
  --glass-shadow-strip:
    0 1px 0 rgba(255, 255, 255, 0.68) inset,
    0 10px 32px rgba(18, 80, 130, 0.07);

  --font-display: 'DM Sans', 'Noto Sans SC', system-ui, sans-serif;
  --font-body: 'Noto Sans SC', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', system-ui, sans-serif;
  --surface-hero-deep: #0b1220;
  --surface-hero-mid: #132036;
  --text-on-dark: #f2f7ff;
  --text-on-dark-muted: rgba(242, 247, 255, 0.76);
  /* 首页与子页共用：呼应 .hero-bg-layer 的蓝/橙位形，压低透明度衔接首屏余韵 */
  --surface-page-corridor:
    radial-gradient(ellipse 88% 58% at 82% 6%, rgba(244, 107, 24, 0.1), transparent 54%),
    radial-gradient(ellipse 74% 50% at 10% 30%, rgba(26, 111, 196, 0.13), transparent 56%),
    radial-gradient(ellipse 68% 44% at 54% 88%, rgba(60, 120, 200, 0.09), transparent 50%),
    radial-gradient(ellipse 110% 65% at 50% 102%, color-mix(in srgb, var(--surface-hero-mid) 9%, transparent), transparent 52%),
    linear-gradient(
      168deg,
      color-mix(in srgb, var(--brand-blue-mist) 48%, #ffffff) 0%,
      #f7f9fd 34%,
      #f4f8fc 61%,
      color-mix(in srgb, var(--brand-orange-soft) 26%, #f9fafc) 100%
    );
}

:is(body.site-home, body.site-subpage) {
  background: var(--surface-page-corridor);
}

.skip-link {
  position: absolute;
  top: 0;
  left: -9999px;
  z-index: 100;
  padding: 12px 18px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.92rem;
  color: #fff;
  background: linear-gradient(180deg, var(--brand-blue) 0%, var(--brand-blue-deep) 100%);
  box-shadow: var(--shadow);
  text-decoration: none;
}

.skip-link:focus,
.skip-link:focus-visible {
  left: 12px;
  top: 12px;
  outline: 2px solid #fff;
  outline-offset: 2px;
}

#main:focus {
  outline: none;
}

#main:focus-visible {
  outline: 2px solid var(--brand-blue-deep);
  outline-offset: 4px;
  border-radius: 4px;
}

body.site-subpage main.prose#main:focus-visible,

body.site-subpage main.legal-sheet#main:focus-visible {
  border-radius: var(--glass-radius);
}

/* --------- 磨砂玻璃工具类 --------- */
.glass-panel {
  --glass-fill: var(--glass-bg);

  border-radius: var(--glass-radius);
  background: var(--glass-fill);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  -webkit-backdrop-filter: saturate(var(--glass-saturate)) blur(var(--glass-blur));
  backdrop-filter: saturate(var(--glass-saturate)) blur(var(--glass-blur));
}

.glass-panel--strong {
  --glass-fill: var(--glass-bg-strong);

  box-shadow: var(--glass-shadow-strong);
}

.site-top {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--glass-bg);
  border-bottom: 1px solid var(--glass-border);
  -webkit-backdrop-filter: saturate(var(--glass-saturate)) blur(var(--glass-blur-strip));
  backdrop-filter: saturate(var(--glass-saturate)) blur(var(--glass-blur-strip));
  box-shadow: var(--glass-shadow-strip);
  transition:
    background 0.38s var(--ease-soft),
    border-color 0.35s ease,
    box-shadow 0.38s ease;
}

@supports not (backdrop-filter: blur(1px)) {
  .glass-panel,
  .glass-panel--strong {
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
  }

  .glass-panel {
    --glass-fill: color-mix(in srgb, var(--card) 96%, var(--brand-blue-mist));
  }

  .glass-panel--strong {
    --glass-fill: color-mix(in srgb, var(--card) 98%, var(--brand-blue-mist));
  }

  .site-top {
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
    background: color-mix(in srgb, var(--card) 94%, var(--brand-blue-mist));
  }
}

@media (prefers-reduced-transparency: reduce) {
  .glass-panel,
  .glass-panel--strong {
    -webkit-backdrop-filter: none !important;
    backdrop-filter: none !important;
  }

  .glass-panel {
    --glass-fill: linear-gradient(165deg, var(--card) 0%, color-mix(in srgb, var(--brand-blue-mist) 36%, var(--card)) 100%);
  }

  .glass-panel--strong {
    --glass-fill: color-mix(in srgb, var(--card) 97%, var(--brand-blue-mist));
  }

  .site-top {
    -webkit-backdrop-filter: none !important;
    backdrop-filter: none !important;
    background: color-mix(in srgb, var(--card) 96%, var(--brand-blue-mist));
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.55) inset;
  }
}

.site-top .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 20px;
  padding: 14px 20px;
  max-width: var(--maxw-wide);
}

.site-top .brand {
  margin: 0;
  padding: 0;
  border: none;
}

.site-top .brand-name {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  display: block;
}

.brand-with-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: nowrap;
}

.brand-titles {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  min-width: 0;
}

.brand-titles .brand-name {
  margin: 0;
  line-height: 1.25;
  color: var(--text);
}

.brand-titles .brand-tagline {
  line-height: 1.35;
  color: var(--muted);
  font-size: 0.9rem;
}

.site-logo {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  object-fit: cover;
  flex-shrink: 0;
  display: block;
  box-shadow:
    0 0 0 1px color-mix(in srgb, var(--brand-blue) 15%, transparent),
    0 8px 24px rgba(18, 90, 160, 0.12);
  animation: logoIn 0.55s var(--ease-out) 0.06s both;
}

header .brand-with-logo {
  align-items: center;
  flex-wrap: wrap;
}

header .site-logo {
  width: 44px;
  height: 44px;
  border-radius: 11px;
}

body.site-subpage .site-top .site-logo {
  animation: none;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  font-size: 0.92rem;
}

.site-nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 6px 2px;
  color: var(--text);
  transition: color 0.2s var(--ease-soft);
}

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

.site-nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--brand-blue), var(--brand-orange));
  border-radius: 1px;
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.28s var(--ease-out);
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  transform: scaleX(1);
}

.site-nav a:focus-visible {
  outline: 2px solid var(--brand-blue);
  outline-offset: 3px;
}

@media (max-width: 720px) {
  .site-top .wrap {
    flex-direction: column;
    align-items: stretch;
  }

  .site-nav {
    flex-wrap: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    gap: 10px 18px;
    padding: 2px 6px 12px;
    margin-left: -6px;
    margin-right: -6px;
    scrollbar-width: thin;
    overscroll-behavior-x: contain;
  }

  .site-nav a {
    flex: 0 0 auto;
    white-space: nowrap;
  }
}

.section-label {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--text);
  text-transform: uppercase;
  margin-bottom: 10px;
  padding: 5px 12px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--brand-orange-soft) 0%, color-mix(in srgb, var(--brand-blue-soft) 55%, white) 100%);
  border: 1px solid color-mix(in srgb, var(--brand-orange) 22%, transparent);
}

.block-intro {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--glass-radius);
  padding: 28px 26px;
  box-shadow: var(--glass-shadow);
  -webkit-backdrop-filter: saturate(var(--glass-saturate)) blur(var(--glass-blur));
  backdrop-filter: saturate(var(--glass-saturate)) blur(var(--glass-blur));
}

.block-intro p {
  margin: 0 0 14px;
  color: var(--muted);
  line-height: 1.78;
  font-size: 1rem;
}

.block-intro p:last-child {
  margin-bottom: 0;
}

.block-intro .app-id {
  font-weight: 600;
  color: var(--text);
}

.feature-list {
  margin: 0;
  padding-left: 1.15em;
  color: var(--muted);
  line-height: 1.78;
  font-size: 0.98rem;
}

.feature-list li {
  margin-bottom: 8px;
}

.feature-list li:last-child {
  margin-bottom: 0;
}

.section-note {
  font-size: 0.92rem;
  color: var(--muted);
  margin-top: 18px;
  max-width: 52em;
}

.footer-block {
  margin-top: 22px;
  padding-top: 22px;
  border-top: 1px solid var(--border);
  font-size: 0.86rem;
  line-height: 1.75;
  color: #5c6e7e;
}

.footer-block strong {
  color: var(--muted);
  font-weight: 600;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--site-sticky-offset);
}

section[id] {
  scroll-margin-top: var(--site-sticky-offset);
}

body {
  margin: 0;
  font-family: var(--font-body);
  background:
    radial-gradient(ellipse 120% 80% at 50% -20%, rgba(120, 185, 235, 0.35), transparent 52%),
    radial-gradient(ellipse 90% 55% at 100% 0%, rgba(255, 183, 120, 0.12), transparent 45%),
    radial-gradient(ellipse 70% 50% at 0% 35%, rgba(100, 170, 230, 0.14), transparent 50%),
    linear-gradient(180deg, var(--bg-wash) 0%, var(--bg) 38%, #eef3f9 100%);
  color: var(--text);
  line-height: 1.65;
  font-size: 16px;
}

body.site-subpage {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

body.site-subpage main {
  flex: 1;
}

.page-divider {
  display: block;
  height: 1px;
  width: min(var(--maxw) - 44px, calc(100% - 44px));
  margin: 8px auto 0;
  border: none;
  border-radius: 1px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    color-mix(in srgb, var(--brand-blue) 28%, transparent) 42%,
    color-mix(in srgb, var(--brand-orange) 24%, transparent) 58%,
    transparent 100%
  );
}

.footer-meta {
  margin: 0;
  font-size: 0.82rem;
  color: #5a6b7a;
}

.footer-meta--stack {
  margin-top: 12px;
}

a {
  color: var(--accent);
  text-decoration: none;
}

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

a:focus-visible,
.back:focus-visible {
  outline: 2px solid var(--brand-blue);
  outline-offset: 3px;
  border-radius: 4px;
}

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

.btn-primary:focus-visible {
  outline-color: #fff;
  box-shadow:
    0 0 0 3px var(--brand-blue-deep),
    0 2px 0 rgba(255, 255, 255, 0.2) inset,
    var(--shadow-orange);
}

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 22px;
}

.wrap--wide {
  max-width: var(--maxw-wide);
}

header {
  padding: 18px 0;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
}

header .brand-name {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  margin: 0;
  line-height: 1.25;
  color: var(--text);
}

header .brand-tagline {
  line-height: 1.35;
  color: var(--muted);
  font-size: 0.95rem;
}

a.site-header-home {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  color: inherit;
  text-decoration: none;
  border-radius: 12px;
}

a.site-header-home:hover {
  text-decoration: none;
}

a.site-header-home:focus-visible {
  outline: 2px solid var(--brand-blue);
  outline-offset: 3px;
}

.hero {
  position: relative;
  padding: 56px 0 44px;
  text-align: center;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: -40% -20% auto;
  height: 120%;
  background:
    radial-gradient(ellipse 70% 45% at 50% 90%, rgba(255, 140, 66, 0.14), transparent 62%),
    radial-gradient(ellipse 85% 50% at 50% 100%, color-mix(in srgb, var(--brand-blue-soft) 50%, transparent), transparent 55%);
  pointer-events: none;
  z-index: 0;
}

.hero .wrap {
  position: relative;
  z-index: 1;
}

.hero h1 {
  margin: 0 0 16px;
  font-size: clamp(1.55rem, 4.2vw, 2.15rem);
  font-weight: 800;
  letter-spacing: 0.02em;
  line-height: 1.25;
  color: var(--text);
  background: linear-gradient(105deg, var(--text) 0%, var(--brand-blue-deep) 55%, var(--brand-orange-deep) 100%);
}

@supports ((-webkit-background-clip: text) or (background-clip: text)) {
  .hero h1 {
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }
}

.lead {
  margin: 0 auto 30px;
  max-width: 38em;
  color: var(--muted);
  font-size: 1.06rem;
  line-height: 1.78;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 24px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.96rem;
  border: none;
  cursor: pointer;
  transition:
    background 0.2s ease,
    transform 0.15s ease,
    box-shadow 0.28s var(--ease-out),
    border-color 0.2s ease;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: linear-gradient(180deg, var(--brand-orange) 0%, var(--brand-orange-deep) 100%);
  color: #fff;
  box-shadow:
    0 2px 0 rgba(255, 255, 255, 0.2) inset,
    var(--shadow-orange);
}

.btn-primary:hover {
  background: linear-gradient(180deg, #ff7a28 0%, var(--brand-orange) 100%);
  text-decoration: none;
  color: #fff;
  box-shadow:
    0 2px 0 rgba(255, 255, 255, 0.22) inset,
    0 16px 40px rgba(244, 107, 24, 0.35);
}

.btn-secondary {
  background: color-mix(in srgb, var(--card) 92%, var(--brand-blue-mist));
  color: var(--text);
  border: 1px solid color-mix(in srgb, var(--border) 85%, var(--brand-blue) 12%);
  box-shadow: var(--shadow);
}

.btn-secondary:hover {
  border-color: color-mix(in srgb, var(--brand-blue) 35%, var(--border));
  text-decoration: none;
  color: var(--text);
  box-shadow:
    0 12px 36px rgba(18, 90, 160, 0.1),
    var(--shadow);
}

.btn[disabled],
.btn[aria-disabled='true'] {
  opacity: 0.55;
  cursor: not-allowed;
  pointer-events: none;
}

section {
  padding: 36px 0 48px;
}

section h2 {
  margin: 0 0 18px;
  font-size: clamp(1.22rem, 2.8vw, 1.42rem);
  font-weight: 700;
  font-family: var(--font-display);
  letter-spacing: 0.02em;
  color: var(--text);
}

.grid {
  display: grid;
  gap: 18px;
}

@media (min-width: 640px) {
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

.card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--glass-radius);
  padding: 22px 22px 20px;
  box-shadow: var(--glass-shadow);
  -webkit-backdrop-filter: saturate(var(--glass-saturate)) blur(var(--glass-blur));
  backdrop-filter: saturate(var(--glass-saturate)) blur(var(--glass-blur));
  transition:
    transform 0.35s var(--ease-out),
    box-shadow 0.35s var(--ease-out),
    border-color 0.25s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow:
    var(--glass-shadow-strong),
    0 6px 20px rgba(244, 107, 24, 0.06),
    var(--glass-shadow);
  border-color: color-mix(in srgb, var(--brand-blue) 32%, var(--glass-border));
}

.card h3 {
  margin: 0 0 10px;
  font-size: 1.07rem;
  color: var(--text);
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.96rem;
  line-height: 1.72;
}

.download-note {
  margin-top: 16px;
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.72;
}

.download-note--center {
  max-width: 40rem;
  margin-left: auto;
  margin-right: auto;
}

.hero-panel {
  margin: 22px auto 0;
  max-width: 42rem;
  padding: 22px 24px;
  text-align: center;
}

.hero-panel .lead {
  margin: 0 auto 14px;
  max-width: 38em;
}

.hero-panel .download-note {
  margin-top: 0;
}

.hero-panel .download-note--center {
  max-width: 40rem;
}

.muted-narrow-lead {
  margin: 0 0 16px;
  color: var(--muted);
  max-width: 40rem;
}

.legal-inline-links {
  margin-top: 20px;
  font-size: 0.95rem;
  color: var(--muted);
}

.contact-note-last {
  margin-bottom: 0;
}

.footer-block-lead {
  margin: 0 0 10px;
}

.section-heading-spaced {
  margin-top: 28px;
}

.prose-outro {
  margin-top: 32px;
}

footer {
  padding: 40px 0 52px;
  border-top: 1px solid var(--glass-border);
  color: var(--muted);
  font-size: 0.9rem;
  background:
    radial-gradient(ellipse 900px 200px at 50% 0%, color-mix(in srgb, var(--brand-blue-mist) 55%, transparent), transparent 72%),
    linear-gradient(180deg, transparent 0%, color-mix(in srgb, var(--brand-blue-mist) 35%, var(--bg)) 100%);
}

footer .links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 24px;
  margin-bottom: 18px;
}

footer .links a[aria-current='page'] {
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
}

footer .links a:hover {
  color: var(--brand-orange-deep);
}

footer .icp {
  font-size: 0.85rem;
  color: #5a6b7a;
}

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

.page-title {
  padding: 36px 0 12px;
}

body.site-subpage main.prose .page-title,

body.site-subpage main.legal-sheet .page-title {
  padding-top: 12px;
  position: relative;
}

body.site-subpage main.prose .page-title::before,
body.site-subpage main.legal-sheet .page-title::before {
  content: '';
  display: block;
  width: min(160px, 38vw);
  height: 3px;
  margin: 0 0 14px;
  border-radius: 999px;
  background: linear-gradient(
    90deg,
    color-mix(in srgb, var(--brand-blue) 86%, transparent) 0%,
    color-mix(in srgb, var(--brand-orange) 92%, transparent) 100%
  );
}

.page-title h1 {
  margin: 0 0 10px;
  font-family: var(--font-display), var(--font-body);
  font-size: clamp(1.65rem, 3.55vw, 2.08rem);
  font-weight: 700;
  line-height: 1.22;
  letter-spacing: -0.02em;
}

.page-title p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.prose {
  padding-bottom: 52px;
}

body.site-subpage main.prose,
body.site-subpage main.legal-sheet {
  margin-top: 10px;
  margin-bottom: 36px;
  padding: 22px 24px 48px;
  border-radius: var(--glass-radius);
  background: var(--glass-bg-strong);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow-strong);
  -webkit-backdrop-filter: saturate(var(--glass-saturate)) blur(var(--glass-blur));
  backdrop-filter: saturate(var(--glass-saturate)) blur(var(--glass-blur));
}

.prose h2 {
  margin: 32px 0 12px;
  font-size: 1.12rem;
  color: var(--text);
}

.prose h3 {
  margin: 22px 0 10px;
  font-size: 1.02rem;
  color: var(--text);
}

.prose p,
.prose li {
  color: var(--muted);
}

.prose ul {
  padding-left: 1.2em;
}

.prose p {
  margin: 0 0 12px;
}

.back {
  display: inline-block;
  margin-bottom: 10px;
  font-size: 0.95rem;
  font-weight: 600;
}

.back:hover {
  color: var(--brand-orange-deep);
}

/* --------- 截图 / 海报通用布局 --------- */
.screenshots-section {
  padding: 44px 0 56px;
  background:
    radial-gradient(1200px 420px at 50% -100px, color-mix(in srgb, var(--brand-blue) 12%, transparent), transparent 58%),
    linear-gradient(180deg, color-mix(in srgb, var(--brand-blue-mist) 55%, var(--bg-wash)) 0%, var(--bg) 48%);
}

.screenshots-lead {
  margin: 0 0 32px;
  max-width: 48rem;
  color: var(--muted);
  font-size: 1.04rem;
  line-height: 1.76;
}

.screenshot-grid {
  display: flex;
  flex-direction: column;
  gap: 3.25rem;
}

.screenshot-item {
  display: grid;
  gap: 1.5rem;
  align-items: center;
}

.screenshots-section.promo-section .screenshot-grid {
  gap: 3.5rem;
}

@media (min-width: 920px) {
  .screenshots-section.promo-section .screenshot-item {
    grid-template-columns: minmax(0, 1.07fr) minmax(272px, 576px);
    gap: 2.75rem;
    align-items: center;
  }

  .screenshot-item--alt .screenshot-copy {
    order: 2;
  }

  .screenshot-item--alt .screenshot-frame {
    order: 1;
  }
}

.screenshot-copy h3 {
  margin: 0 0 12px;
  font-size: 1.2rem;
  color: var(--text);
  letter-spacing: 0.02em;
}

.screenshot-copy p {
  margin: 0;
  color: var(--muted);
  line-height: 1.78;
  font-size: 0.98rem;
}

.screenshot-frame {
  margin: 0;
}

.promo-visual {
  margin: 0 auto;
  max-width: min(720px, 100%);
  border-radius: 22px;
  overflow: hidden;
  background: var(--card);
  box-shadow:
    0 0 0 1px color-mix(in srgb, var(--brand-blue) 14%, transparent),
    0 0 0 1px rgba(255, 255, 255, 0.65) inset,
    0 22px 52px rgba(18, 85, 150, 0.14),
    0 12px 28px rgba(244, 107, 24, 0.08),
    0 6px 14px rgba(20, 50, 90, 0.06);
  transform: translateZ(0);
  transition:
    transform 0.42s var(--ease-out),
    box-shadow 0.42s var(--ease-out);
}

.promo-visual img {
  width: 100%;
  height: auto;
  display: block;
  vertical-align: middle;
}

.phone-chrome {
  border-radius: 28px;
  overflow: hidden;
  background: #0f1924;
  box-shadow:
    0 0 0 1px rgba(18, 90, 150, 0.15),
    0 28px 58px rgba(18, 75, 140, 0.2),
    0 10px 22px rgba(244, 107, 24, 0.07);
  transform: translateZ(0);
  transition:
    transform 0.42s var(--ease-out),
    box-shadow 0.42s var(--ease-out);
}

.phone-chrome img {
  width: 100%;
  height: auto;
  display: block;
  vertical-align: middle;
}

.screenshot-frame figcaption {
  margin-top: 14px;
  text-align: center;
  font-size: 0.82rem;
  color: var(--muted);
  letter-spacing: 0.04em;
}

.screenshots-footnote {
  margin: 40px 0 0;
  padding: 20px 22px;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--muted);
  background: var(--glass-bg-strong);
  border: 1px solid var(--glass-border);
  border-radius: var(--glass-radius);
  box-shadow: var(--glass-shadow-strong);
  -webkit-backdrop-filter: saturate(var(--glass-saturate)) blur(var(--glass-blur));
  backdrop-filter: saturate(var(--glass-saturate)) blur(var(--glass-blur));
}

/* --------- 产品亮点（与全域廊道一致，避免与 --surface-page-corridor 双色圈重复叠加） --------- */
.screenshots-section.promo-section {
  padding: 52px 0 60px;
  background: var(--surface-page-corridor);
}

.promo-section .section-label {
  border-color: color-mix(in srgb, var(--brand-orange) 28%, transparent);
}

.screenshots-section.promo-section .screenshots-lead {
  margin-bottom: 36px;
}

.screenshots-section.promo-section .screenshot-frame figcaption {
  color: var(--muted);
}

.screenshots-section.promo-section .screenshots-footnote {
  background: color-mix(in srgb, var(--glass-bg-strong) 88%, var(--brand-orange-soft));
  border-color: color-mix(in srgb, var(--brand-blue) 20%, var(--glass-border));
  box-shadow:
    0 12px 40px rgba(18, 90, 150, 0.08),
    var(--glass-shadow-strong);
}

.screenshots-footnote strong {
  color: #3d4f5c;
  font-weight: 600;
}

@supports not (backdrop-filter: blur(1px)) {
  body.site-subpage main.prose,
  body.site-subpage main.legal-sheet {
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
    background: color-mix(in srgb, var(--card) 97%, var(--brand-blue-mist));
  }

  .card {
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
    background: linear-gradient(160deg, var(--card) 0%, color-mix(in srgb, var(--card) 90%, var(--brand-blue-mist)) 100%);
  }

  .block-intro {
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
    background: linear-gradient(165deg, var(--card) 0%, color-mix(in srgb, var(--brand-blue-mist) 38%, var(--card)) 100%);
  }

  body.site-home #download .cta-row {
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
    background: linear-gradient(160deg, var(--card) 0%, color-mix(in srgb, var(--card) 90%, var(--brand-blue-mist)) 100%);
  }

  .screenshots-footnote {
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
    background: color-mix(in srgb, var(--card) 92%, var(--brand-blue-mist));
  }

  .screenshots-section.promo-section .screenshots-footnote {
    background: color-mix(in srgb, var(--card) 90%, var(--brand-orange-soft));
  }
}

@media (prefers-reduced-transparency: reduce) {
  body.site-subpage main.prose,
  body.site-subpage main.legal-sheet {
    -webkit-backdrop-filter: none !important;
    backdrop-filter: none !important;
    background: color-mix(in srgb, var(--card) 98%, var(--brand-blue-mist));
  }

  .card {
    -webkit-backdrop-filter: none !important;
    backdrop-filter: none !important;
    background: linear-gradient(160deg, var(--card) 0%, color-mix(in srgb, var(--card) 88%, var(--brand-blue-mist)) 100%);
  }

  .block-intro {
    -webkit-backdrop-filter: none !important;
    backdrop-filter: none !important;
    background: linear-gradient(165deg, var(--card) 0%, color-mix(in srgb, var(--brand-blue-mist) 35%, var(--card)) 100%);
  }

  body.site-home #download .cta-row {
    -webkit-backdrop-filter: none !important;
    backdrop-filter: none !important;
    background: linear-gradient(160deg, var(--card) 0%, color-mix(in srgb, var(--card) 88%, var(--brand-blue-mist)) 100%);
  }

  .screenshots-footnote {
    -webkit-backdrop-filter: none !important;
    backdrop-filter: none !important;
    background: color-mix(in srgb, var(--card) 92%, var(--brand-blue-mist));
  }

  .screenshots-section.promo-section .screenshots-footnote {
    background: color-mix(in srgb, var(--card) 88%, var(--brand-orange-soft));
  }
}

/* --------- 动效（含减弱动效） --------- */
.site-top--enter {
  animation: siteTopIn 0.55s var(--ease-out) both;
}

@keyframes siteTopIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes logoIn {
  from {
    opacity: 0;
    transform: scale(0.92);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.reveal {
  opacity: 0;
  transform: translate3d(0, 28px, 0);
  transition:
    opacity var(--dur-fade) var(--ease-out),
    transform var(--dur-fade) var(--ease-out);
  will-change: opacity, transform;
}

.reveal.is-visible {
  opacity: 1;
  transform: translate3d(0, 0, 0);
  will-change: auto;
}

.js-anim-ready .grid.grid-2 .card.reveal:nth-child(1) {
  transition-delay: 0ms;
}
.js-anim-ready .grid.grid-2 .card.reveal:nth-child(2) {
  transition-delay: 0.06s;
}
.js-anim-ready .grid.grid-2 .card.reveal:nth-child(3) {
  transition-delay: 0.12s;
}
.js-anim-ready .grid.grid-2 .card.reveal:nth-child(4) {
  transition-delay: 0.18s;
}

.screenshot-item.is-visible:hover .phone-chrome,
.screenshot-item.is-visible:focus-within .phone-chrome,
.screenshot-item.is-visible:hover .promo-visual,
.screenshot-item.is-visible:focus-within .promo-visual {
  transform: translateY(-8px);
  box-shadow:
    0 0 0 1px color-mix(in srgb, var(--brand-blue) 18%, transparent),
    0 0 0 1px rgba(255, 255, 255, 0.5) inset,
    0 34px 64px rgba(18, 85, 150, 0.2),
    0 18px 36px rgba(244, 107, 24, 0.12);
}

.screenshot-item.is-visible:hover .phone-chrome,
.screenshot-item.is-visible:focus-within .phone-chrome {
  box-shadow:
    0 0 0 1px rgba(18, 90, 150, 0.12),
    0 38px 68px rgba(18, 75, 140, 0.24),
    0 16px 32px rgba(244, 107, 24, 0.1);
}

@media (prefers-reduced-motion: reduce) {
  :root {
    --dur-fade: 0.01s;
  }

  .site-top--enter,
  .site-logo {
    animation: none !important;
  }

  .site-nav a::after {
    display: none;
  }

  .reveal {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
    will-change: auto;
  }

  .js-anim-ready .grid.grid-2 .card.reveal:nth-child(n) {
    transition-delay: 0ms !important;
  }

  .card:hover {
    transform: none;
  }

  .screenshot-item.is-visible:hover .phone-chrome,
  .screenshot-item.is-visible:focus-within .phone-chrome,
  .screenshot-item.is-visible:hover .promo-visual,
  .screenshot-item.is-visible:focus-within .promo-visual {
    transform: none;
  }
}

/* =============================================================================
   站点大改版 · 深靛首屏（site-home）+ 内容廊道 + 品牌化页脚
   ========================================================================== */

body.site-home:not(.site-header-solid) .site-top {
  background: transparent;
  border-bottom-color: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  box-shadow: none;
}

body.site-home:not(.site-header-solid) .site-top .brand-titles .brand-name,
body.site-home:not(.site-header-solid) .site-top .brand-titles .brand-tagline {
  color: var(--text-on-dark);
}

body.site-home:not(.site-header-solid) .site-top .brand-tagline {
  opacity: 0.85;
}

body.site-home:not(.site-header-solid) .site-top .site-nav a {
  color: var(--text-on-dark-muted);
}

body.site-home:not(.site-header-solid) .site-top .site-nav a:hover {
  color: #fff;
}

body.site-home:not(.site-header-solid) .site-top .site-logo {
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.22),
    0 14px 32px rgba(0, 0, 0, 0.25);
}

body.site-home:not(.site-header-solid) .site-top .site-nav a::after {
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.92), rgba(255, 196, 120, 0.95));
}

body.site-home:not(.site-header-solid) .site-top .site-nav a:focus-visible {
  outline-color: rgba(255, 255, 255, 0.95);
  outline-offset: 4px;
}

.hero-top-sentinel {
  position: absolute;
  top: max(0px, calc(var(--site-sticky-offset) - 72px));
  left: 0;
  right: 0;
  height: 2px;
  pointer-events: none;
  visibility: hidden;
}

body.site-home #intro.hero {
  position: relative;
  margin-top: calc(-1 * var(--site-sticky-offset));
  min-height: min(92vh, 900px);
  max-height: none;
  padding: calc(var(--site-sticky-offset) + 40px) 0 76px;
  text-align: left;
  overflow: clip;
}

body.site-home #intro.hero::before {
  display: none;
}

.hero-bg-layer {
  position: absolute;
  inset: -2px;
  z-index: 0;
  background:
    radial-gradient(ellipse 90% 70% at 88% 12%, rgba(244, 107, 24, 0.18), transparent 52%),
    radial-gradient(ellipse 70% 55% at 10% 30%, rgba(26, 111, 196, 0.35), transparent 55%),
    radial-gradient(ellipse 65% 50% at 55% 100%, rgba(60, 120, 200, 0.2), transparent 45%),
    linear-gradient(
      155deg,
      var(--surface-hero-deep) 0%,
      var(--surface-hero-mid) 48%,
      #0f1c32 100%
    );
}

.js-anim-ready body.site-home .hero-bg-layer {
  animation: heroMeshPulse 26s ease-in-out infinite alternate;
}

.hero-grid-wrap {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 2.75rem;
  align-items: center;
}

.hero-copy {
  max-width: 38rem;
}

@media (min-width: 960px) {
  body.site-home #intro.hero {
    min-height: min(100vh, 960px);
  }

  .hero-grid-wrap {
    grid-template-columns: minmax(0, 1.06fr) minmax(260px, 0.94fr);
    gap: 2rem 3rem;
    align-items: center;
  }
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 14px;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-on-dark-muted);
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.06);
  font-family: var(--font-display);
}

.hero-badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: linear-gradient(145deg, var(--brand-orange) 30%, rgba(255, 255, 255, 0.85));
  flex-shrink: 0;
}

body.site-home #intro.hero h1 {
  margin: 0 0 14px;
  font-size: clamp(2rem, 5.8vw, 3.05rem);
  font-weight: 700;
  font-family: var(--font-display), var(--font-body);
  line-height: 1.12;
  letter-spacing: -0.025em;
  color: var(--text-on-dark);
  background:
    linear-gradient(
      118deg,
      #fff 0%,
      #e3edff 40%,
      color-mix(in srgb, var(--brand-orange) 92%, white) 100%
    )
    fixed;
}

@supports ((-webkit-background-clip: text) or (background-clip: text)) {
  body.site-home #intro.hero h1 {
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
  }
}

body.site-home #intro.hero .hero-sub {
  margin: 0 0 18px;
  font-family: var(--font-display), var(--font-body);
  font-size: clamp(1.06rem, 2.15vw, 1.35rem);
  font-weight: 600;
  line-height: 1.42;
  color: var(--text-on-dark);
}

.hero-lead-soft {
  margin: 0 0 26px;
  max-width: 36em;
  font-size: 1.03rem;
  line-height: 1.76;
  color: var(--text-on-dark-muted);
}

.hero-strip {
  margin-top: 0;
  padding: 18px 20px;
  border-radius: var(--glass-radius);
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(10, 20, 38, 0.35);
  -webkit-backdrop-filter: saturate(150%) blur(14px);
  backdrop-filter: saturate(150%) blur(14px);
}

.hero-strip p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.68;
  color: var(--text-on-dark-muted);
}

.hero-strip p + p {
  margin-top: 10px;
}

.hero-strip .hero-micro-legal {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.hero-micro-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 20px;
  font-size: 0.82rem;
  font-weight: 600;
}

.hero-micro-legal a {
  color: rgba(255, 255, 255, 0.92);
}

.hero-micro-legal a:focus-visible {
  outline: 2px solid rgba(255, 255, 255, 0.95);
  outline-offset: 3px;
}


.hero-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  margin: 0 0 22px;
}

.btn-ghost-light {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.94rem;
  border: 1px solid rgba(255, 255, 255, 0.32);
  color: rgba(255, 255, 255, 0.95);
  cursor: pointer;
  background: transparent;
  transition:
    border-color 0.2s ease,
    background 0.2s ease;
}

.btn-ghost-light:hover {
  border-color: rgba(255, 255, 255, 0.55);
  background: rgba(255, 255, 255, 0.06);
  text-decoration: none;
  color: #fff;
}

.btn-ghost-light:focus-visible {
  outline: 2px solid rgba(255, 255, 255, 0.92);
  outline-offset: 3px;
}

.hero-visual-slot {
  position: relative;
  min-height: 220px;
  border-radius: 22px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.07) 0%, rgba(20, 40, 76, 0.25) 100%);
}

.hero-visual-glow {
  position: absolute;
  inset: 15% -10%;
  border-radius: 50%;
  background: radial-gradient(
    ellipse at center,
    color-mix(in srgb, var(--brand-orange) 45%, transparent) 0%,
    transparent 68%
  );
  filter: blur(28px);
  opacity: 0.55;
  pointer-events: none;
}

.hero-visual-label {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 10px;
  padding: 24px;
  text-align: center;
  pointer-events: none;
}

.hero-visual-label strong {
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2.8vw, 1.42rem);
  color: rgba(255, 255, 255, 0.95);
}

.hero-visual-label span {
  font-size: 0.88rem;
  color: var(--text-on-dark-muted);
  max-width: 16rem;
}

body.site-home .hero-seq {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}

@media (prefers-reduced-motion: no-preference) {
  body.site-home .hero-seq {
    opacity: 1;
    transform: translate3d(0, 18px, 0);
    animation: heroSeqLift 0.58s var(--ease-out) forwards;
  }

  body.site-home .hero-seq:nth-child(1) {
    animation-delay: 0ms;
  }

  body.site-home .hero-seq:nth-child(2) {
    animation-delay: 70ms;
  }

  body.site-home .hero-seq:nth-child(3) {
    animation-delay: 0.12s;
  }

  body.site-home .hero-seq:nth-child(4) {
    animation-delay: 0.18s;
  }

  body.site-home .hero-seq:nth-child(5) {
    animation-delay: 0.24s;
  }

  body.site-home .hero-seq:nth-child(6) {
    animation-delay: 0.3s;
  }
}

@keyframes heroSeqLift {
  from {
    transform: translate3d(0, 22px, 0);
  }
  to {
    transform: translate3d(0, 0, 0);
  }
}

@keyframes heroMeshPulse {
  0% {
    filter: saturate(115%) hue-rotate(0deg);
  }
  100% {
    filter: saturate(125%) hue-rotate(8deg);
  }
}

.section-air {
  scroll-margin-top: var(--site-sticky-offset);
}

/* --------- 首页：锚点区块与廊道/顶栏节奏对齐 --------- */
body.site-home .section-air {
  padding: 42px 0 52px;
}

body.site-home main section:not(.hero) > .wrap {
  padding-left: 20px;
  padding-right: 20px;
}

body.site-home .section-air > .wrap {
  max-width: var(--maxw-wide);
}

body.site-home main section:not(.hero) h2 {
  font-size: clamp(1.42rem, 3.05vw, 1.92rem);
  font-weight: 700;
  font-family: var(--font-display), var(--font-body);
  letter-spacing: -0.018em;
  line-height: 1.22;
}

/* 与 .section-label 胶囊二选一可视层次：第二轮去掉 h2 顶条避免重复装饰 */

body.site-home main > section#features,
body.site-home main > section#screenshots,
body.site-home main > section#download,
body.site-home main > section#about,
body.site-home main > section#contact {
  border-top: 1px solid color-mix(in srgb, var(--border) 62%, transparent);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.62);
}

body.site-home .section-air .muted-narrow-lead,
body.site-home .section-air .download-note,
body.site-home .section-air .legal-inline-links {
  max-width: min(52rem, 100%);
}

body.site-home #features .section-note,
body.site-home #features .feature-list {
  max-width: min(52rem, 100%);
}

body.site-home .screenshots-section.promo-section .screenshots-lead {
  max-width: min(52rem, 100%);
  margin-bottom: 40px;
  line-height: 1.84;
}

body.site-home #screenshots .screenshot-copy h3 {
  font-family: var(--font-display), var(--font-body);
  letter-spacing: -0.015em;
  margin-bottom: 14px;
}

body.site-home .page-divider {
  margin-top: 0;
  opacity: 0.88;
  width: min(calc(var(--maxw-wide) - 44px), calc(100% - 40px));
}

body.site-home #download .cta-row {
  justify-content: flex-start;
  margin-top: 10px;
  padding: 18px 20px;
  border-radius: var(--glass-radius);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  -webkit-backdrop-filter: saturate(var(--glass-saturate)) blur(var(--glass-blur));
  backdrop-filter: saturate(var(--glass-saturate)) blur(var(--glass-blur));
}

body.site-home #features .grid-features-strong {
  gap: 22px;
}

body.site-home #features h2.section-heading-spaced {
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid color-mix(in srgb, var(--border) 76%, transparent);
  font-size: clamp(1.08rem, 2.55vw, 1.34rem);
  font-weight: 700;
  color: color-mix(in srgb, var(--muted) 78%, var(--text) 22%);
}

body.site-home #features .grid-features-strong .card:first-child {
  border-left: none;
  padding-left: 22px;
  box-shadow: var(--glass-shadow);
  position: relative;
}

body.site-home #features .grid-features-strong .card:first-child::before {
  content: '';
  position: absolute;
  left: 1px;
  top: 18px;
  bottom: 18px;
  width: 3px;
  border-radius: 3px;
  background: linear-gradient(180deg, var(--brand-blue-deep) 0%, var(--brand-orange) 100%);
}

body.site-home #screenshots .screenshot-copy p {
  line-height: 1.82;
}

@media (max-width: 639px) {
  body.site-home #features .grid-features-strong .card:first-child::before {
    display: none;
  }

  body.site-home #features .grid-features-strong .card:first-child {
    padding-left: 22px;
    padding-top: 22px;
    border-top: 2px solid color-mix(in srgb, var(--brand-orange) 48%, var(--brand-blue) 52%);
    box-shadow: var(--glass-shadow);
  }
}

.bento-board {
  display: grid;
  gap: 16px;
  margin-top: 22px;
}

@media (min-width: 760px) {
  .bento-board {
    grid-template-columns: 1fr 1fr;
    gap: 18px;
  }

  .bento-span-2 {
    grid-column: 1 / -1;
  }
}

.bento-tile {
  padding: 22px 24px;
  border-radius: var(--glass-radius);
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  box-shadow: var(--glass-shadow);
  -webkit-backdrop-filter: saturate(var(--glass-saturate)) blur(var(--glass-blur));
  backdrop-filter: saturate(var(--glass-saturate)) blur(var(--glass-blur));
}

.bento-kicker {
  margin: 0 0 8px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  font-family: var(--font-display);
  color: var(--brand-orange-deep);
}

.bento-board h3 {
  margin: 0 0 10px;
  font-size: 1.06rem;
  font-family: var(--font-display);
  color: var(--text);
}

.bento-board p {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
  font-size: 0.97rem;
  max-width: 44em;
}

.bento-points {
  margin: 14px 0 0;
  padding-left: 1.05em;
  color: var(--muted);
  line-height: 1.76;
}

.bento-points li + li {
  margin-top: 6px;
}

.grid-features-strong .card:first-child {
  grid-column: 1 / -1;
  border-left: 4px solid var(--brand-orange);
  padding-left: 20px;
}

@media (max-width: 639px) {
  .grid-features-strong .card:first-child {
    grid-column: auto;
    border-left: none;
    padding-left: 22px;
    border-top: 4px solid var(--brand-orange);
    padding-top: 20px;
  }
}

.feature-card-index {
  display: block;
  margin-bottom: 10px;
  font-size: 0.72rem;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.2em;
  color: color-mix(in srgb, var(--brand-blue) 55%, var(--muted));
}

.card h3 {
  font-family: var(--font-display);
}

.promo-visual--podium {
  position: relative;
}

.promo-visual--podium::after {
  content: '';
  display: block;
  height: 12px;
  margin: -2px auto 0;
  width: min(420px, 78%);
  border-radius: 0 0 24px 24px;
  background: linear-gradient(180deg, rgba(15, 25, 40, 0.16) 0%, transparent 95%);
}

.site-footer-premium {
  margin-top: 20px;
  padding: 48px 0 52px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  color: rgba(230, 238, 250, 0.78);
  font-size: 0.92rem;
  background:
    linear-gradient(180deg, rgba(10, 16, 28, 0.98) 0%, rgba(16, 24, 40, 0.99) 100%);
}

.site-footer-inner {
  display: grid;
  gap: 28px 36px;
}

@media (min-width: 760px) {
  .site-footer-inner {
    grid-template-columns: 1.05fr repeat(3, minmax(0, 1fr));
    align-items: start;
    gap: 32px;
  }
}

.site-footer-brand {
  max-width: 22rem;
}

.site-footer-logo {
  margin: 0 0 8px;
}

.site-footer-name {
  margin: 0 0 4px;
  font-size: 1.15rem;
  font-weight: 700;
  font-family: var(--font-display);
  color: #fff;
}

.site-footer-tagline {
  margin: 0;
  font-size: 0.88rem;
  color: rgba(230, 238, 250, 0.65);
}

.site-footer-links h4,
.site-footer-col-title {
  margin: 0 0 14px;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  font-family: var(--font-display);
  color: rgba(255, 255, 255, 0.92);
}

.site-footer-links ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.site-footer-links a {
  color: rgba(226, 234, 250, 0.85);
}

.site-footer-links a:hover {
  color: color-mix(in srgb, var(--brand-orange) 88%, white);
}

.site-footer-icp {
  margin-top: 8px;
  font-size: 0.82rem;
  color: rgba(200, 215, 230, 0.55);
}

/* 工信部备案：首页底部居中展示，链接至 beian.miit.gov.cn */
.site-footer-beian-bar {
  margin: 0;
  padding: 18px 20px 22px;
  text-align: center;
  font-size: 0.88rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(0, 0, 0, 0.12);
}

.site-footer-beian-bar a {
  color: rgba(226, 234, 250, 0.88);
  text-decoration: none;
}

.site-footer-beian-bar a:hover {
  color: #fff;
  text-decoration: underline;
}

.site-footer-meta {
  margin: 28px 0 0;
  padding-top: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  grid-column: 1 / -1;
}

.site-footer-meta p {
  margin: 0 0 12px;
  color: rgba(200, 215, 230, 0.68);
}

.site-footer-meta p:last-child {
  margin-bottom: 0;
  font-size: 0.8rem;
}

.screenshot-copy h3 {
  font-family: var(--font-display);
}

@media (prefers-reduced-motion: reduce) {
  body.site-home .hero-seq {
    opacity: 1 !important;
    transform: none !important;
    animation: none !important;
  }

  body.site-home .hero-bg-layer {
    animation: none !important;
  }
}

@media (prefers-reduced-transparency: reduce) {
  .hero-strip {
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
    background: color-mix(in srgb, var(--surface-hero-mid) 85%, transparent);
  }
}

body.site-subpage main.wrap.prose,
body.site-subpage main.wrap.legal-sheet {
  max-width: min(792px, 100%);
}

.site-footer-premium nav a[aria-current='page'] {
  font-weight: 700;
  color: #fff;
}

.site-footer-brand .site-footer-name a {
  color: inherit;
  text-decoration: none;
}

.site-footer-brand .site-footer-name a:hover {
  color: rgba(255, 255, 255, 0.9);
}

footer.site-footer-premium .icp {
  margin-top: 6px;
  font-size: 0.85rem;
  color: rgba(200, 215, 230, 0.55);
}

footer.site-footer-premium .icp a {
  color: rgba(226, 234, 250, 0.78);
}

footer.site-footer-premium .icp a:hover {
  color: #fff;
}