/* 未登录官网 Landing —— 独立样式，避免被 main 层叠挡住 FAB */

body.is-landing .bg-scene { opacity: 0.18; }
body.is-landing main.wrap {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 0;
  z-index: auto;
}
body.is-landing .site-footer {
  margin-top: 0;
  border-top: 1px solid var(--line);
  padding-bottom: calc(5.5rem + env(safe-area-inset-bottom, 0px));
}

.landing {
  position: relative;
  color: var(--ink);
  overflow: clip;
  --land-mx: 0;
  --land-my: 0;
}

.land-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  z-index: 1600;
  pointer-events: none;
  background: transparent;
}
.land-progress-bar {
  display: block;
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #2dd4bf, #38bdf8 55%, #5eead4);
  box-shadow: 0 0 12px rgba(45, 212, 191, 0.55);
  transform-origin: left center;
  transition: width 0.08s linear;
}

.land-fx {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
.land-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(48px);
  opacity: 0.45;
  will-change: transform;
}
.land-orb--a {
  width: min(52vw, 420px);
  height: min(52vw, 420px);
  top: -8%;
  left: -10%;
  background: radial-gradient(circle, rgba(45, 212, 191, 0.55), transparent 68%);
  animation: land-orb-drift 18s ease-in-out infinite alternate;
}
.land-orb--b {
  width: min(48vw, 380px);
  height: min(48vw, 380px);
  top: 38%;
  right: -12%;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.42), transparent 70%);
  animation: land-orb-drift 22s ease-in-out infinite alternate-reverse;
}
.land-orb--c {
  width: min(40vw, 300px);
  height: min(40vw, 300px);
  bottom: 4%;
  left: 28%;
  background: radial-gradient(circle, rgba(94, 234, 212, 0.28), transparent 72%);
  animation: land-orb-drift 26s ease-in-out infinite alternate;
}
.land-beam {
  position: absolute;
  width: 42vw;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, transparent, rgba(94, 234, 212, 0.35), transparent);
  filter: blur(1px);
  opacity: 0.55;
}
.land-beam--a {
  top: 22%;
  left: -10%;
  animation: land-beam-a 14s ease-in-out infinite;
}
.land-beam--b {
  top: 68%;
  right: -15%;
  opacity: 0.35;
  background: linear-gradient(90deg, transparent, rgba(56, 189, 248, 0.32), transparent);
  animation: land-beam-b 16s ease-in-out infinite;
  animation-delay: -6s;
}
.land-noise {
  position: absolute;
  inset: 0;
  opacity: 0.045;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
}

.land-hero {
  position: relative;
  min-height: min(92vh, 920px);
  display: grid;
  align-items: end;
  overflow: hidden;
  isolation: isolate;
}
.land-hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.land-hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 28%;
  display: block;
  transform: scale(1.08) translate3d(calc(var(--land-mx) * -12px), calc(var(--land-my) * -10px), 0);
  animation: land-hero-ken 28s ease-in-out alternate infinite;
  will-change: transform;
}
.land-hero-dust {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  overflow: hidden;
}
.land-hero-dust span {
  position: absolute;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: rgba(94, 234, 212, 0.55);
  box-shadow: 0 0 12px rgba(94, 234, 212, 0.45);
  animation: land-dust-float 9s ease-in-out infinite;
  opacity: 0.55;
}
.land-hero-dust span:nth-child(1) { left: 18%; top: 28%; animation-delay: 0s; }
.land-hero-dust span:nth-child(2) { left: 72%; top: 22%; width: 3px; height: 3px; animation-delay: -2s; }
.land-hero-dust span:nth-child(3) { left: 42%; top: 58%; width: 4px; height: 4px; animation-delay: -4s; background: rgba(56, 189, 248, 0.55); }
.land-hero-dust span:nth-child(4) { left: 84%; top: 62%; animation-delay: -1.2s; }
.land-hero-dust span:nth-child(5) { left: 28%; top: 74%; width: 3px; height: 3px; animation-delay: -5.5s; }
.land-hero-dust span:nth-child(6) { left: 58%; top: 36%; width: 6px; height: 6px; animation-delay: -3.4s; opacity: 0.35; }
.land-hero-veil {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(180deg, rgba(7, 11, 18, 0.35) 0%, rgba(7, 11, 18, 0.55) 42%, rgba(7, 11, 18, 0.9) 100%),
    linear-gradient(90deg, rgba(7, 11, 18, 0.58) 0%, transparent 55%);
  pointer-events: none;
}
[data-theme="light"] .land-hero-veil {
  background:
    linear-gradient(180deg, rgba(243, 246, 250, 0.2) 0%, rgba(243, 246, 250, 0.45) 40%, rgba(243, 246, 250, 0.92) 100%),
    linear-gradient(90deg, rgba(20, 32, 51, 0.35) 0%, transparent 55%);
}
[data-theme="cartoon"] .land-hero-veil {
  background:
    linear-gradient(180deg, rgba(231, 246, 255, 0.15) 0%, rgba(231, 246, 255, 0.5) 42%, rgba(212, 235, 248, 0.94) 100%),
    linear-gradient(90deg, rgba(26, 58, 74, 0.28) 0%, transparent 58%),
    radial-gradient(ellipse 40% 30% at 85% 20%, rgba(255, 122, 89, 0.28), transparent 70%);
}
.land-hero-grid {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(94, 234, 212, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(94, 234, 212, 0.06) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.55), transparent 78%);
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.55), transparent 78%);
  animation: land-grid-shift 20s linear infinite;
}
.land-hero-copy {
  position: relative;
  z-index: 2;
  width: min(1240px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 5.5rem 0 3.2rem;
  max-width: 38rem;
  justify-self: start;
  margin-left: max(1rem, calc((100% - min(1240px, calc(100% - 2rem))) / 2));
}
.land-brand {
  margin: 0 0 0.85rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.55rem;
  font-family: var(--display);
  font-size: clamp(1.55rem, 3.2vw, 2.15rem);
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.1;
}
.land-brand-logo {
  display: block;
  height: clamp(3.2rem, 7vw, 4.8rem);
  width: auto;
  aspect-ratio: 1877 / 1062;
  max-width: min(14rem, 70vw);
  object-fit: contain;
  filter: drop-shadow(0 8px 22px rgba(0, 0, 0, 0.35));
}
[data-theme="light"] .land-brand-logo {
  filter: invert(1) drop-shadow(0 8px 22px rgba(0, 0, 0, 0.18));
}
[data-theme="cartoon"] .land-brand-logo {
  filter: invert(1) sepia(0.35) saturate(3) hue-rotate(145deg) drop-shadow(0 6px 16px rgba(0, 0, 0, 0.2));
}
.land-brand span {
  background: linear-gradient(110deg, #5eead4 0%, #2dd4bf 35%, #38bdf8 70%, #5eead4 100%);
  background-size: 220% auto;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: land-shine 6s linear infinite;
}
.land-hero h1 {
  margin: 0 0 0.85rem;
  font-family: var(--display);
  font-size: clamp(1.65rem, 4.2vw, 2.75rem);
  font-weight: 650;
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: #f4fbff;
  max-width: 14em;
  text-wrap: balance;
}
[data-theme="light"] .land-hero h1 { color: #0f1c2c; }
[data-theme="cartoon"] .land-hero h1 { color: #1a3a4a; }
[data-theme="cartoon"] .land-brand { color: #ff7a59; }
.land-lead {
  margin: 0 0 1.35rem;
  font-size: clamp(0.95rem, 1.6vw, 1.08rem);
  line-height: 1.65;
  color: rgba(232, 242, 255, 0.82);
  max-width: 32em;
}
[data-theme="light"] .land-lead { color: rgba(20, 32, 51, 0.78); }
[data-theme="cartoon"] .land-lead { color: rgba(26, 58, 74, 0.78); }
.land-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 0.75rem;
  align-items: center;
}
.land-cta .btn {
  min-height: 2.55rem;
  padding: 0.55rem 1.15rem;
  transition: transform 0.28s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.28s ease;
}
.land-cta .btn:hover {
  transform: translateY(-2px);
}
.land-cta-glow {
  box-shadow: 0 0 0 0 rgba(45, 212, 191, 0.45);
  animation: land-cta-pulse 2.8s ease-in-out infinite;
}

.land-ticker {
  position: relative;
  z-index: 1;
  overflow: hidden;
  border-block: 1px solid var(--line);
  background: rgba(8, 14, 24, 0.72);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
[data-theme="light"] .land-ticker {
  background: rgba(255, 255, 255, 0.78);
}
[data-theme="cartoon"] .land-ticker {
  background: rgba(255, 253, 248, 0.9);
  border: 2px solid rgba(46, 196, 182, 0.28);
  box-shadow: 0 4px 0 rgba(255, 122, 89, 0.14);
}
.land-ticker-track {
  display: flex;
  gap: 1.75rem;
  width: max-content;
  padding: 0.7rem 0;
  animation: land-ticker-move 32s linear infinite;
}
.land-ticker-track span {
  font-family: var(--display);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  white-space: nowrap;
}
.land-ticker-track span::before {
  content: "◈";
  margin-right: 0.65rem;
  color: var(--accent);
  opacity: 0.7;
}

.land-scene {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 0;
  min-height: min(72vh, 640px);
  background: var(--bg0);
}
.land-scene--right { grid-template-columns: 1fr 1.15fr; }
.land-scene--right .land-scene-media { order: 2; }
.land-scene--right .land-scene-copy { order: 1; }
.land-scene-media {
  position: relative;
  min-height: 280px;
  overflow: hidden;
}
.land-scene-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transform: scale(1.06);
  transition: transform 1.1s ease;
  will-change: transform;
}
.land-scene:hover .land-scene-media img { transform: scale(1.1); }
.land-scene-index {
  position: absolute;
  left: 0.9rem;
  bottom: 0.7rem;
  font-family: var(--display);
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.04em;
  color: rgba(255, 255, 255, 0.22);
  text-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
  pointer-events: none;
  transition: color 0.45s ease, transform 0.55s cubic-bezier(0.22, 1, 0.36, 1);
}
.land-scene.is-in .land-scene-index {
  color: rgba(94, 234, 212, 0.42);
  transform: translateY(-4px);
}
.land-scene-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.7rem;
  padding: clamp(1.6rem, 4vw, 3.2rem) clamp(1.2rem, 4vw, 3.4rem);
  background: linear-gradient(160deg, rgba(16, 26, 43, 0.92), rgba(10, 16, 26, 0.96));
  border-block: 1px solid var(--line);
}
[data-theme="light"] .land-scene-copy {
  background: linear-gradient(160deg, #fff, #f3f7fb);
}
[data-theme="cartoon"] .land-scene-copy {
  background: linear-gradient(160deg, #fffdf8, #e7f6ff);
  border: 2px solid rgba(46, 196, 182, 0.22);
  box-shadow: 0 5px 0 rgba(46, 196, 182, 0.12);
}
.land-kicker {
  margin: 0;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
}
.land-scene-copy h2,
.land-close h2 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(1.35rem, 2.8vw, 1.95rem);
  font-weight: 650;
  line-height: 1.25;
  letter-spacing: -0.015em;
}
.land-scene-copy p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
  font-size: 0.98rem;
  max-width: 36em;
}
.land-scene-copy .btn { align-self: flex-start; margin-top: 0.35rem; }

/* MCP 接入场景：中心 hub + 多端图标散落 */
.land-mcp-stage {
  display: grid;
  place-items: center;
  background: #0a121c;
}
.land-mcp-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.38;
  filter: saturate(0.75) brightness(0.72);
  transform: none !important;
}
.land-scene:hover .land-mcp-bg { transform: scale(1.03) !important; }
.land-mcp-veil {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 55% 50% at 50% 46%, rgba(14, 200, 169, 0.22), transparent 64%),
    linear-gradient(160deg, rgba(8, 14, 24, 0.5), rgba(8, 14, 24, 0.84));
  pointer-events: none;
}
.land-mcp-orbits {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  display: grid;
  place-items: center;
}
.land-mcp-ring {
  position: absolute;
  left: 50%;
  top: 48%;
  border: 1px solid rgba(94, 234, 212, 0.22);
  border-radius: 50%;
  box-shadow: inset 0 0 24px rgba(45, 212, 191, 0.05);
  transform: translate(-50%, -50%);
}
.land-mcp-ring--outer {
  width: min(92%, 420px);
  aspect-ratio: 1;
  animation: land-orbit-spin 48s linear infinite;
  border-style: dashed;
  opacity: 0.55;
}
.land-mcp-ring--mid {
  width: min(72%, 320px);
  aspect-ratio: 1;
  animation: land-orbit-spin 32s linear infinite reverse;
  opacity: 0.7;
}
.land-mcp-ring--inner {
  width: min(48%, 210px);
  aspect-ratio: 1;
  animation: land-orbit-spin 22s linear infinite;
  border-color: rgba(56, 189, 248, 0.28);
}
.land-mcp-board {
  position: relative;
  z-index: 1;
  width: min(96%, 560px);
  aspect-ratio: 5 / 4;
  max-height: 92%;
}
.land-mcp-hub {
  position: absolute;
  left: 50%;
  top: 48%;
  transform: translate(-50%, -50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  animation: land-mcp-hub-breathe 6.5s ease-in-out infinite;
}
.land-mcp-hub img {
  width: 68px;
  height: 68px;
  border-radius: 16px;
  box-shadow:
    0 0 0 6px rgba(255, 255, 255, 0.06),
    0 14px 40px rgba(0, 0, 0, 0.4);
  animation: land-mcp-hub-glow 4.8s ease-in-out infinite;
}
.land-mcp-hub span {
  font-family: var(--display);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  font-weight: 650;
  color: rgba(255, 255, 255, 0.9);
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.45);
}
.land-mcp-scatter {
  list-style: none;
  margin: 0;
  padding: 0;
  position: absolute;
  inset: 0;
}
.land-mcp-chip {
  --dx: 14px;
  --dy: -12px;
  --rot: 0deg;
  --spin: 8deg;
  --s0: 1;
  --s1: 1.1;
  --dur: 11s;
  --delay: 0s;
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.28rem;
  margin: 0;
  will-change: transform;
  transform: translate(-50%, -50%);
  animation: land-mcp-orbit var(--dur) ease-in-out infinite;
  animation-delay: var(--delay);
}
.land-mcp-chip img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: 22%;
  background: rgba(255, 255, 255, 0.94);
  padding: 12%;
  box-sizing: border-box;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.32);
  animation: land-mcp-chip-pulse calc(var(--dur) * 0.85) ease-in-out infinite;
  animation-delay: var(--delay);
}
.land-mcp-chip span {
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: rgba(255, 255, 255, 0.88);
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.55);
  white-space: nowrap;
  opacity: 0.9;
  animation: land-mcp-label-fade calc(var(--dur) * 1.1) ease-in-out infinite;
  animation-delay: var(--delay);
}
.land-mcp-chip.is-sm span { display: none; }
.land-mcp-chip.is-xl { width: 76px; }
.land-mcp-chip.is-lg { width: 60px; }
.land-mcp-chip.is-md { width: 48px; }
.land-mcp-chip.is-sm { width: 34px; opacity: 0.92; }
.land-mcp-chip.is-xl img { padding: 8%; }
.land-mcp-chip.is-sm img { padding: 14%; }

/* 散落坐标 + 各自轨迹/缩放节奏 */
.land-mcp-chip.is-n1  { left: 14%; top: 18%; --rot: -8deg;  --dx: 22px;  --dy: 16px;  --spin: 10deg; --s0: 0.94; --s1: 1.12; --dur: 12.5s; --delay: 0s; }
.land-mcp-chip.is-n2  { left: 84%; top: 16%; --rot: 7deg;   --dx: -20px; --dy: 18px;  --spin: -9deg; --s0: 0.96; --s1: 1.14; --dur: 13.2s; --delay: -2.1s; }
.land-mcp-chip.is-n3  { left: 10%; top: 52%; --rot: -4deg;  --dx: 18px;  --dy: -22px; --spin: 7deg;  --s0: 0.92; --s1: 1.1;  --dur: 10.8s; --delay: -4.4s; }
.land-mcp-chip.is-n4  { left: 88%; top: 48%; --rot: 5deg;   --dx: -24px; --dy: -14px; --spin: -11deg;--s0: 0.95; --s1: 1.13; --dur: 14s;   --delay: -1.2s; }
.land-mcp-chip.is-n5  { left: 22%; top: 82%; --rot: 6deg;   --dx: 16px;  --dy: -20px; --spin: 8deg;  --s0: 0.9;  --s1: 1.08; --dur: 11.6s; --delay: -3.6s; }
.land-mcp-chip.is-n6  { left: 72%; top: 80%; --rot: -6deg;  --dx: -18px; --dy: -16px; --spin: -7deg; --s0: 0.93; --s1: 1.11; --dur: 12s;   --delay: -5.5s; }
.land-mcp-chip.is-n7  { left: 38%; top: 14%; --rot: 3deg;   --dx: 20px;  --dy: 14px;  --spin: 6deg;  --s0: 0.94; --s1: 1.09; --dur: 9.8s;  --delay: -0.8s; }
.land-mcp-chip.is-n8  { left: 62%; top: 88%; --rot: -10deg; --dx: -14px; --dy: -24px; --spin: 12deg; --s0: 0.88; --s1: 1.12; --dur: 13.8s; --delay: -6.2s; }
.land-mcp-chip.is-n9  { left: 6%;  top: 78%; --rot: 9deg;   --dx: 24px;  --dy: -12px; --spin: -8deg; --s0: 0.9;  --s1: 1.15; --dur: 10.2s; --delay: -2.8s; }
.land-mcp-chip.is-n10 { left: 54%; top: 12%; --rot: -3deg;  --dx: -16px; --dy: 20px;  --spin: 5deg;  --s0: 0.95; --s1: 1.1;  --dur: 11.2s; --delay: -4.9s; }
.land-mcp-chip.is-n11 { left: 92%; top: 72%; --rot: 4deg;   --dx: -22px; --dy: 12px;  --spin: -6deg; --s0: 0.9;  --s1: 1.14; --dur: 12.8s; --delay: -1.7s; }
.land-mcp-chip.is-n12 { left: 30%; top: 40%; --rot: -7deg;  --dx: 12px;  --dy: 18px;  --spin: 9deg;  --s0: 0.92; --s1: 1.08; --dur: 9.4s;  --delay: -3.1s; }
.land-mcp-chip.is-n13 { left: 76%; top: 38%; --rot: 8deg;   --dx: -12px; --dy: -18px; --spin: -10deg;--s0: 0.91; --s1: 1.12; --dur: 10.6s; --delay: -5.0s; }

@keyframes land-mcp-hub-breathe {
  0%, 100% { transform: translate(-50%, -50%) scale(1); }
  50% { transform: translate(-50%, -50%) scale(1.06) translateY(-4px); }
}
@keyframes land-mcp-hub-glow {
  0%, 100% {
    box-shadow:
      0 0 0 6px rgba(255, 255, 255, 0.06),
      0 14px 40px rgba(0, 0, 0, 0.4);
  }
  50% {
    box-shadow:
      0 0 0 10px rgba(14, 200, 169, 0.16),
      0 18px 48px rgba(0, 0, 0, 0.45);
  }
}
@keyframes land-mcp-orbit {
  0% {
    transform: translate(-50%, -50%) translate(0, 0) rotate(var(--rot)) scale(var(--s0));
  }
  20% {
    transform: translate(-50%, -50%)
      translate(calc(var(--dx) * 0.85), calc(var(--dy) * -0.35))
      rotate(calc(var(--rot) + var(--spin)))
      scale(var(--s1));
  }
  45% {
    transform: translate(-50%, -50%)
      translate(calc(var(--dx) * -0.25), var(--dy))
      rotate(calc(var(--rot) - var(--spin) * 0.4))
      scale(calc((var(--s0) + var(--s1)) / 2));
  }
  70% {
    transform: translate(-50%, -50%)
      translate(calc(var(--dx) * -0.9), calc(var(--dy) * 0.45))
      rotate(calc(var(--rot) + var(--spin) * 0.55))
      scale(var(--s1));
  }
  100% {
    transform: translate(-50%, -50%) translate(0, 0) rotate(var(--rot)) scale(var(--s0));
  }
}
@keyframes land-mcp-chip-pulse {
  0%, 100% { filter: brightness(1); box-shadow: 0 10px 28px rgba(0, 0, 0, 0.32); }
  50% { filter: brightness(1.06); box-shadow: 0 14px 34px rgba(0, 0, 0, 0.4); }
}
@keyframes land-mcp-label-fade {
  0%, 100% { opacity: 0.75; }
  50% { opacity: 1; }
}

.land-close {
  position: relative;
  z-index: 1;
  text-align: left;
  padding: clamp(2.4rem, 6vw, 4.5rem) max(1rem, calc((100% - min(1240px, calc(100% - 2rem))) / 2));
  background:
    radial-gradient(ellipse 60% 80% at 12% 20%, var(--glow-a), transparent 55%),
    radial-gradient(ellipse 50% 70% at 88% 80%, var(--glow-b), transparent 50%),
    var(--bg1);
  border-top: 1px solid var(--line);
  overflow: hidden;
}
.land-close::before {
  content: "";
  position: absolute;
  inset: -20% -10%;
  background:
    radial-gradient(circle at 20% 40%, rgba(45, 212, 191, 0.12), transparent 35%),
    radial-gradient(circle at 80% 60%, rgba(56, 189, 248, 0.1), transparent 40%);
  animation: land-close-mesh 16s ease-in-out infinite alternate;
  pointer-events: none;
}
.land-close > * { position: relative; z-index: 1; }
.land-close .land-brand { margin-bottom: 0.55rem; }
.land-close p {
  margin: 0.65rem 0 1.25rem;
  color: var(--muted);
  max-width: 34em;
  line-height: 1.7;
}

.land-reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.75s cubic-bezier(0.22, 1, 0.36, 1);
}
.land-reveal.is-in {
  opacity: 1;
  transform: none;
}
.land-stagger-item {
  opacity: 0;
  transform: translateY(14px);
  transition:
    opacity 0.55s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.65s cubic-bezier(0.22, 1, 0.36, 1);
  transition-delay: calc(var(--stagger-i, 0) * 90ms + 60ms);
}
.is-in > .land-stagger-item,
.is-in [data-stagger] > .land-stagger-item,
[data-stagger].is-in > .land-stagger-item {
  opacity: 1;
  transform: none;
}
.land-hero-copy.is-in .land-stagger-item {
  opacity: 1;
  transform: none;
}
.land-scene.land-reveal .land-scene-media {
  opacity: 0;
  transform: translateX(-18px) scale(1.02);
  transition: opacity 0.75s ease 0.05s, transform 0.85s cubic-bezier(0.22, 1, 0.36, 1) 0.05s;
}
.land-scene--right.land-reveal .land-scene-media { transform: translateX(18px) scale(1.02); }
.land-scene.land-reveal.is-in .land-scene-media {
  opacity: 1;
  transform: none;
}

/* FAB / 弹层挂在 body；打开站点菜单时由 app.css 隐藏 FAB */
.land-ai-modal {
  position: fixed;
  inset: 0;
  z-index: 1400;
  display: grid;
  place-items: center;
  padding: max(1rem, env(safe-area-inset-top, 0px)) 1rem max(1rem, env(safe-area-inset-bottom, 0px));
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.22s ease, visibility 0.22s ease;
}
.land-ai-modal.is-open {
  pointer-events: auto;
  opacity: 1;
  visibility: visible;
}
.land-ai-scrim {
  position: absolute;
  inset: 0;
  background: rgba(4, 10, 18, 0.58);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  cursor: pointer;
}
[data-theme="light"] .land-ai-scrim {
  background: rgba(15, 30, 50, 0.42);
}
[data-theme="cartoon"] .land-ai-scrim {
  background: rgba(26, 58, 74, 0.38);
}
.land-ai-panel {
  position: relative;
  z-index: 1;
  width: min(520px, calc(100vw - 2rem));
  height: min(72vh, 640px);
  max-height: calc(100dvh - 2rem);
  display: flex;
  flex-direction: column;
  background: var(--panel-solid);
  border: 1px solid var(--line-strong);
  border-radius: 18px;
  box-shadow: var(--shadow), 0 0 0 1px rgba(45, 212, 191, 0.08);
  transform: translateY(14px) scale(0.97);
  opacity: 0;
  transition:
    transform 0.28s cubic-bezier(0.22, 1, 0.36, 1),
    opacity 0.22s ease;
}
.land-ai-modal.is-open .land-ai-panel {
  transform: translateY(0) scale(1);
  opacity: 1;
}
.land-ai-head {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  align-items: flex-start;
  padding: 1rem 1rem 0.75rem;
  border-bottom: 1px solid var(--line);
  flex: 0 0 auto;
}
.land-ai-head strong {
  font-family: var(--display);
  font-size: 1.08rem;
}
.land-ai-log {
  flex: 1 1 auto;
  overflow: auto;
  padding: 0.85rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  min-height: 0;
}
.land-ai-form {
  padding: 0.75rem 1rem 1rem;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 0.45rem;
  background: var(--surface-soft);
  flex: 0 0 auto;
  border-radius: 0 0 18px 18px;
}
.land-ai-form textarea {
  width: 100%;
  resize: vertical;
  min-height: 4.5rem;
  font: inherit;
  color: var(--ink);
  background: var(--input-bg);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.55rem 0.65rem;
}
.land-ai-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: center;
}
#land-ai-status.is-err { color: var(--danger); }
#land-ai-workspace.is-pulse {
  border-color: var(--accent);
  color: var(--accent);
  animation: land-pulse 1.2s ease-in-out 2;
}

.land-ai-fab {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: fixed;
  left: 50%;
  bottom: max(1.35rem, calc(env(safe-area-inset-bottom, 0px) + 1.05rem));
  transform: translateX(-50%);
  z-index: 1350;
  width: 4.75rem;
  height: 4.75rem;
  min-width: 4.75rem;
  min-height: 4.75rem;
  border-radius: 999px;
  border: 1px solid rgba(4, 16, 22, 0.12);
  background: linear-gradient(145deg, #5eead4, #38bdf8);
  color: #041016;
  box-shadow: 0 12px 28px rgba(8, 20, 36, 0.45);
  cursor: pointer;
  font-family: var(--display);
  line-height: 1.05;
  padding: 0;
  margin: 0;
  -webkit-appearance: none;
  appearance: none;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  user-select: none;
  animation: land-fab-in 0.55s ease both;
}
.land-ai-fab-ring {
  position: absolute;
  inset: -6px;
  border-radius: inherit;
  border: 2px solid rgba(94, 234, 212, 0.55);
  animation: land-fab-ring 2.4s ease-out infinite;
  pointer-events: none;
}
.land-ai-fab-label {
  position: relative;
  font-weight: 750;
  font-size: 1.08rem;
  letter-spacing: 0.04em;
}
.land-ai-fab-sub {
  position: relative;
  font-size: 0.64rem;
  font-weight: 650;
  opacity: 0.85;
}
body.land-ai-open .land-ai-fab {
  opacity: 0;
  pointer-events: none;
  transform: translateX(-50%) scale(0.86);
}
body.land-ai-open { overflow: hidden; }

@keyframes land-hero-ken {
  from { transform: scale(1.08) translate3d(calc(var(--land-mx) * -12px), calc(var(--land-my) * -10px), 0); }
  to { transform: scale(1.14) translate3d(calc(var(--land-mx) * -12px), calc(var(--land-my) * -10px - 1.2%), 0); }
}
@keyframes land-orb-drift {
  from { transform: translate3d(calc(var(--land-mx) * 18px), calc(var(--land-my) * 14px), 0) scale(1); }
  to { transform: translate3d(calc(4% + var(--land-mx) * 18px), calc(6% + var(--land-my) * 14px), 0) scale(1.12); }
}
@keyframes land-beam-a {
  0%, 100% { opacity: 0.12; transform: translateX(-8%) rotate(-18deg); }
  50% { opacity: 0.55; transform: translateX(12%) rotate(-18deg); }
}
@keyframes land-beam-b {
  0%, 100% { opacity: 0.1; transform: translateX(8%) rotate(14deg); }
  50% { opacity: 0.4; transform: translateX(-10%) rotate(14deg); }
}
@keyframes land-dust-float {
  0%, 100% { transform: translate3d(0, 0, 0) scale(1); opacity: 0.25; }
  50% { transform: translate3d(12px, -22px, 0) scale(1.35); opacity: 0.7; }
}
@keyframes land-orbit-spin {
  from { transform: translate(-50%, -50%) rotate(0deg); }
  to { transform: translate(-50%, -50%) rotate(360deg); }
}
@keyframes land-close-mesh {
  from { transform: translate3d(-2%, 0, 0) scale(1); }
  to { transform: translate3d(3%, -2%, 0) scale(1.06); }
}
@keyframes land-grid-shift {
  from { background-position: 0 0; }
  to { background-position: 48px 48px; }
}
@keyframes land-shine {
  to { background-position: 220% center; }
}
@keyframes land-cta-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(45, 212, 191, 0); }
  50% { box-shadow: 0 0 0 10px rgba(45, 212, 191, 0.12); }
}
@keyframes land-ticker-move {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
@keyframes land-pulse {
  0%, 100% { box-shadow: none; }
  50% { box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.28); }
}
@keyframes land-fab-in {
  from { opacity: 0; transform: translateX(-50%) translateY(18px) scale(0.92); }
  to { opacity: 1; transform: translateX(-50%) translateY(0) scale(1); }
}
@keyframes land-fab-ring {
  0% { transform: scale(0.92); opacity: 0.7; }
  100% { transform: scale(1.28); opacity: 0; }
}

@media (max-width: 900px) {
  .land-scene,
  .land-scene--right {
    grid-template-columns: 1fr;
    min-height: 0;
  }
  .land-scene--right .land-scene-media,
  .land-scene--right .land-scene-copy { order: unset; }
  .land-scene-media { min-height: 42vw; max-height: 280px; }
  .land-mcp-stage { max-height: none; min-height: 300px; }
  .land-mcp-board { width: min(96%, 420px); aspect-ratio: 1.05; }
  .land-mcp-hub img { width: 56px; height: 56px; }
  .land-mcp-chip.is-xl { width: 58px; }
  .land-mcp-chip.is-lg { width: 48px; }
  .land-mcp-chip.is-md { width: 38px; }
  .land-mcp-chip.is-sm { width: 28px; }
  .land-mcp-chip span { font-size: 0.55rem; }
  .land-hero { min-height: 88vh; }
  .land-hero-copy { padding: 4.5rem 0 2.4rem; }
  .land-ai-panel {
    width: min(100%, calc(100vw - 1.2rem));
    height: min(78dvh, 620px);
    border-radius: 16px;
  }
}

@media (min-width: 901px) {
  .land-ai-fab {
    left: auto;
    right: max(1.4rem, env(safe-area-inset-right, 0px));
    bottom: max(1.6rem, env(safe-area-inset-bottom, 0px));
    transform: none;
  }
  body.land-ai-open .land-ai-fab { transform: scale(0.86); }
  @keyframes land-fab-in {
    from { opacity: 0; transform: translateY(14px) scale(0.92); }
    to { opacity: 1; transform: none; }
  }
}

@media (prefers-reduced-motion: reduce) {
  .land-hero-media img,
  .land-scene-media img,
  .land-mcp-hub,
  .land-mcp-hub img,
  .land-mcp-chip,
  .land-mcp-chip img,
  .land-mcp-chip span,
  .land-mcp-ring,
  .land-beam,
  .land-hero-dust span,
  .land-close::before,
  .land-ai-panel,
  .land-ai-modal,
  .land-ai-fab,
  .land-orb,
  .land-brand span,
  .land-cta-glow,
  .land-ticker-track,
  .land-hero-grid,
  .land-ai-fab-ring,
  .land-reveal,
  .land-stagger-item,
  .land-scene.land-reveal .land-scene-media {
    animation: none !important;
    transition: none !important;
  }
  .land-reveal,
  .land-stagger-item,
  .land-scene.land-reveal .land-scene-media {
    opacity: 1 !important;
    transform: none !important;
  }
  .land-progress { display: none; }
}

/* ============================================================
   v12 · 产品宣传页扩展：能力矩阵 / AI 中枢 / 二维码
   ============================================================ */

.land-hero-media img { object-position: center 42%; }
/* 场景配图统一铺满容器，避免竖图把整行撑高。
   注意：只作用于直接子级大图，勿波及 MCP 圆环里的 logo（.land-mcp-chip img）。 */
.land-scene-media > img { position: absolute; inset: 0; }

.land-eyebrow {
  margin: 0 0 0.65rem;
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--accent);
}

.land-hero-stats {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 1.5rem;
}
.land-hero-stats li {
  display: flex;
  flex-direction: column;
  gap: 0.08rem;
  padding-right: 1.5rem;
  border-right: 1px solid rgba(255, 255, 255, 0.14);
}
.land-hero-stats li:last-child { border-right: 0; padding-right: 0; }
.land-hero-stats strong {
  font-family: var(--display);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  background: linear-gradient(110deg, #5eead4, #38bdf8);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.land-hero-stats span { font-size: 0.72rem; color: rgba(232, 242, 255, 0.68); }
[data-theme="light"] .land-hero-stats li { border-color: rgba(20, 48, 72, 0.14); }
[data-theme="light"] .land-hero-stats strong {
  background: linear-gradient(110deg, #0f9d8a, #0284c7);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
[data-theme="light"] .land-hero-stats span { color: rgba(20, 32, 51, 0.66); }
[data-theme="cartoon"] .land-hero-stats li { border-color: rgba(26, 58, 74, 0.16); }
[data-theme="cartoon"] .land-hero-stats strong {
  background: linear-gradient(110deg, #2ec4b6, #ff7a59);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
[data-theme="cartoon"] .land-hero-stats span { color: rgba(26, 58, 74, 0.68); }

.land-cap h2,
.land-aihub h2,
.land-qr h2 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(1.45rem, 3.2vw, 2.1rem);
  font-weight: 650;
  line-height: 1.22;
  letter-spacing: -0.018em;
}

/* -------- 能力矩阵 -------- */
.land-cap {
  position: relative;
  z-index: 1;
  padding: clamp(3rem, 7vw, 5.5rem) max(1rem, calc((100% - min(1240px, calc(100% - 2rem))) / 2));
  background: linear-gradient(180deg, var(--bg0), var(--bg1));
  border-top: 1px solid var(--line);
}
.land-cap-head { max-width: 46rem; margin-bottom: clamp(1.6rem, 4vw, 2.6rem); }
.land-cap-sub {
  margin: 0.7rem 0 0;
  color: var(--muted);
  line-height: 1.72;
  max-width: 46em;
}
.land-cap-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 0.9rem;
}
.land-cap-card {
  position: relative;
  overflow: hidden;
  padding: 1.15rem 1.2rem 1.25rem;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: linear-gradient(165deg, rgba(16, 26, 43, 0.92), rgba(9, 15, 25, 0.96));
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1), border-color 0.35s ease, box-shadow 0.35s ease;
}
.land-cap-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 100% 0, var(--glow-a), transparent 55%);
  opacity: 0;
  transition: opacity 0.35s ease;
  pointer-events: none;
}
.land-cap-card:hover {
  transform: translateY(-4px);
  border-color: var(--line-strong);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
}
.land-cap-card:hover::after { opacity: 1; }
.land-cap-ico {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  margin-bottom: 0.75rem;
  color: var(--accent);
  background: rgba(45, 212, 191, 0.12);
  border: 1px solid rgba(94, 234, 212, 0.22);
}
.land-cap-ico svg {
  width: 21px;
  height: 21px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.land-cap-card h3 {
  position: relative;
  z-index: 1;
  margin: 0 0 0.35rem;
  font-family: var(--display);
  font-size: 1rem;
  font-weight: 650;
  letter-spacing: -0.01em;
}
.land-cap-card p {
  position: relative;
  z-index: 1;
  margin: 0;
  color: var(--muted);
  font-size: 0.85rem;
  line-height: 1.62;
}
[data-theme="light"] .land-cap-card { background: linear-gradient(165deg, #ffffff, #f2f6fb); }
[data-theme="cartoon"] .land-cap-card {
  background: linear-gradient(165deg, #fffdf8, #e7f6ff);
  border: 2px solid rgba(46, 196, 182, 0.22);
  box-shadow: 0 4px 0 rgba(46, 196, 182, 0.1);
}

/* -------- AI 中枢 -------- */
.land-aihub {
  position: relative;
  z-index: 1;
  padding: clamp(3rem, 7vw, 5.5rem) max(1rem, calc((100% - min(1240px, calc(100% - 2rem))) / 2));
  background:
    radial-gradient(ellipse 60% 60% at 12% 0, var(--glow-a), transparent 55%),
    radial-gradient(ellipse 55% 60% at 88% 100%, var(--glow-b), transparent 55%),
    var(--bg0);
  border-top: 1px solid var(--line);
}
.land-aihub-head { max-width: 46rem; }
.land-aihub-sub {
  margin: 0.7rem 0 clamp(1.6rem, 4vw, 2.4rem);
  color: var(--muted);
  line-height: 1.72;
  max-width: 46em;
}
.land-aihub-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
}
.land-aihub-card {
  border: 1px solid var(--line);
  border-radius: 18px;
  overflow: hidden;
  background: linear-gradient(165deg, rgba(16, 26, 43, 0.95), rgba(9, 15, 25, 0.98));
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1), border-color 0.35s ease, box-shadow 0.35s ease;
}
.land-aihub-card:hover {
  transform: translateY(-4px);
  border-color: var(--line-strong);
  box-shadow: 0 22px 48px rgba(0, 0, 0, 0.4);
}
.land-aihub-media { position: relative; aspect-ratio: 16 / 9; overflow: hidden; }
.land-aihub-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transform: scale(1.02);
  filter: saturate(0.92) brightness(0.86);
  transition: transform 0.8s ease;
}
.land-aihub-card:hover .land-aihub-media img { transform: scale(1.08); }
.land-aihub-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 11, 18, 0.08), rgba(7, 11, 18, 0.92));
}
.land-aihub-body { position: relative; z-index: 1; margin-top: -1.8rem; padding: 0 1.15rem 1.3rem; }
.land-aihub-tag {
  display: inline-block;
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 650;
  color: var(--accent);
  padding: 0.22rem 0.55rem;
  border-radius: 999px;
  background: rgba(45, 212, 191, 0.14);
  border: 1px solid rgba(94, 234, 212, 0.26);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.land-aihub-body h3 { margin: 0.6rem 0 0.4rem; font-family: var(--display); font-size: 1.1rem; font-weight: 650; }
.land-aihub-body p { margin: 0; color: var(--muted); font-size: 0.88rem; line-height: 1.65; }
[data-theme="light"] .land-aihub-card { background: linear-gradient(165deg, #ffffff, #f2f6fb); }
[data-theme="cartoon"] .land-aihub-card {
  background: linear-gradient(165deg, #fffdf8, #e7f6ff);
  border: 2px solid rgba(46, 196, 182, 0.22);
  box-shadow: 0 4px 0 rgba(46, 196, 182, 0.1);
}

/* -------- 二维码 -------- */
.land-qr {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  background: var(--bg1);
  border-top: 1px solid var(--line);
}
.land-qr-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.7rem;
  padding: clamp(1.8rem, 5vw, 3.6rem) clamp(1.2rem, 4vw, 3.4rem);
  padding-left: max(1rem, calc((100% - min(1240px, calc(100% - 2rem))) / 2 + 0.4rem));
}
.land-qr-sub {
  margin: 0;
  color: var(--muted);
  line-height: 1.72;
  font-size: 0.98rem;
  max-width: 36em;
}
.land-qr-list {
  list-style: none;
  margin: 0.5rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.5rem;
}
.land-qr-list li {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  padding: 0.7rem 0.9rem;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
}
.land-qr-list strong { font-size: 0.9rem; font-weight: 650; letter-spacing: 0.01em; }
.land-qr-list strong em {
  font-style: normal;
  font-family: var(--display);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-left: 0.35rem;
}
.land-qr-list span { color: var(--muted); font-size: 0.82rem; line-height: 1.55; }
[data-theme="light"] .land-qr-list li { background: rgba(20, 48, 72, 0.03); }

.land-qr-visual {
  position: relative;
  display: grid;
  place-items: center;
  gap: 1.2rem;
  padding: clamp(1.8rem, 5vw, 3.6rem) clamp(1.2rem, 4vw, 3rem);
  background:
    radial-gradient(circle at 50% 42%, var(--glow-a), transparent 60%),
    var(--bg0);
  border-left: 1px solid var(--line);
  overflow: hidden;
}
.land-qr-stage {
  position: relative;
  width: min(260px, 64vw);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
}
.land-qr-frame {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  color: var(--accent);
  opacity: 0.75;
}
.land-qr-code {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 5px;
  width: 62%;
  aspect-ratio: 1;
}
.land-qr-code span {
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.06);
  transition: background 0.3s ease;
}
.land-qr-code span:nth-child(1),
.land-qr-code span:nth-child(2),
.land-qr-code span:nth-child(4),
.land-qr-code span:nth-child(7),
.land-qr-code span:nth-child(9),
.land-qr-code span:nth-child(12),
.land-qr-code span:nth-child(13),
.land-qr-code span:nth-child(16),
.land-qr-code span:nth-child(17),
.land-qr-code span:nth-child(20),
.land-qr-code span:nth-child(23),
.land-qr-code span:nth-child(24),
.land-qr-code span:nth-child(26),
.land-qr-code span:nth-child(29),
.land-qr-code span:nth-child(31),
.land-qr-code span:nth-child(33),
.land-qr-code span:nth-child(34),
.land-qr-code span:nth-child(36) {
  background: var(--accent);
  box-shadow: 0 0 10px rgba(45, 212, 191, 0.5);
}
.land-qr-scan {
  position: absolute;
  left: 9%;
  right: 9%;
  top: 16%;
  height: 3px;
  border-radius: 999px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  box-shadow: 0 0 18px rgba(45, 212, 191, 0.75);
  animation: land-qr-scan 3.2s ease-in-out infinite;
}
.land-qr-chips { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.5rem; }
.land-qr-chip {
  font-family: var(--display);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  padding: 0.35rem 0.65rem;
  border-radius: 999px;
  color: var(--muted);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
}
.land-qr-chip.is-on {
  color: #06121a;
  background: linear-gradient(120deg, #5eead4, #38bdf8);
  border-color: transparent;
  box-shadow: 0 8px 22px rgba(45, 212, 191, 0.32);
}
[data-theme="light"] .land-qr-chip { background: rgba(20, 48, 72, 0.04); }

@keyframes land-qr-scan {
  0%, 100% { top: 16%; opacity: 0.4; }
  50% { top: 82%; opacity: 1; }
}

@media (max-width: 900px) {
  .land-qr { grid-template-columns: 1fr; }
  .land-qr-copy { padding-left: clamp(1.2rem, 4vw, 3.4rem); }
  .land-qr-visual { border-left: 0; border-top: 1px solid var(--line); }
}

@media (prefers-reduced-motion: reduce) {
  .land-qr-scan,
  .land-aihub-media img,
  .land-cap-card,
  .land-aihub-card {
    animation: none !important;
    transition: none !important;
  }
}

/* ============================================================
   v13 · 省钱双引擎 / 解决方案 / 合作机构
   ============================================================ */

.land-save h2,
.land-sol h2,
.land-orgs h2 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(1.45rem, 3.2vw, 2.1rem);
  font-weight: 650;
  line-height: 1.22;
  letter-spacing: -0.018em;
}

/* -------- 官方货架 + 二手共享 -------- */
.land-save {
  position: relative;
  z-index: 1;
  padding: clamp(2.6rem, 6vw, 4.6rem) max(1rem, calc((100% - min(1240px, calc(100% - 2rem))) / 2));
  background: var(--bg0);
  border-top: 1px solid var(--line);
}
.land-save-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.land-save-panel {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  padding: clamp(1.4rem, 3.4vw, 2.2rem);
  border-radius: 20px;
  border: 1px solid var(--line);
  background:
    radial-gradient(ellipse 70% 60% at 100% 0, var(--glow-a), transparent 60%),
    linear-gradient(165deg, rgba(16, 26, 43, 0.94), rgba(9, 15, 25, 0.98));
}
.land-save-panel--share {
  background:
    radial-gradient(ellipse 70% 60% at 0 0, var(--glow-b), transparent 60%),
    linear-gradient(165deg, rgba(16, 26, 43, 0.94), rgba(9, 15, 25, 0.98));
}
.land-save-panel::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: linear-gradient(180deg, var(--accent), transparent 70%);
}
.land-save-panel--share::before {
  background: linear-gradient(180deg, var(--accent-2, var(--accent)), transparent 70%);
}
.land-save-sub {
  margin: 0;
  color: var(--muted);
  line-height: 1.72;
  font-size: 0.95rem;
}
.land-save-list {
  list-style: none;
  margin: 0.35rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}
.land-save-list li {
  position: relative;
  padding-left: 1.5rem;
  line-height: 1.6;
}
.land-save-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.52em;
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background: var(--accent);
  box-shadow: 0 0 10px rgba(45, 212, 191, 0.5);
  transform: rotate(45deg);
}
.land-save-panel--share .land-save-list li::before {
  background: var(--accent-2, var(--accent));
  box-shadow: 0 0 10px rgba(56, 189, 248, 0.5);
}
.land-save-list strong {
  display: block;
  font-size: 0.92rem;
  font-weight: 650;
  letter-spacing: 0.005em;
}
.land-save-list span {
  display: block;
  margin-top: 0.1rem;
  color: var(--muted);
  font-size: 0.85rem;
}
.land-save-panel .btn { align-self: flex-start; margin-top: 0.5rem; }
[data-theme="light"] .land-save-panel { background: linear-gradient(165deg, #ffffff, #f2f6fb); }
[data-theme="light"] .land-save-panel--share { background: linear-gradient(165deg, #ffffff, #eef5fc); }
[data-theme="cartoon"] .land-save-panel {
  background: linear-gradient(165deg, #fffdf8, #e7f6ff);
  border: 2px solid rgba(46, 196, 182, 0.22);
  box-shadow: 0 4px 0 rgba(46, 196, 182, 0.1);
}

/* -------- 解决方案（物联网 / 软件定制） -------- */
.land-sol {
  position: relative;
  z-index: 1;
  padding: clamp(2.6rem, 6vw, 4.6rem) max(1rem, calc((100% - min(1240px, calc(100% - 2rem))) / 2));
  background:
    radial-gradient(ellipse 60% 55% at 88% 0, var(--glow-a), transparent 58%),
    var(--bg1);
  border-top: 1px solid var(--line);
}
.land-sol--soft {
  background:
    radial-gradient(ellipse 60% 55% at 12% 0, var(--glow-b), transparent 58%),
    var(--bg0);
}
.land-sol-head { max-width: 48rem; margin-bottom: clamp(1.4rem, 3.5vw, 2.2rem); }
.land-sol-sub {
  margin: 0.7rem 0 0;
  color: var(--muted);
  line-height: 1.72;
  max-width: 48em;
}
.land-sol-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
}
.land-sol-card {
  position: relative;
  overflow: hidden;
  padding: 1.3rem 1.3rem 1.4rem;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: linear-gradient(165deg, rgba(16, 26, 43, 0.94), rgba(9, 15, 25, 0.97));
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1), border-color 0.35s ease, box-shadow 0.35s ease;
}
.land-sol-card:hover {
  transform: translateY(-4px);
  border-color: var(--line-strong);
  box-shadow: 0 20px 44px rgba(0, 0, 0, 0.36);
}
.land-sol-ico {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 13px;
  margin-bottom: 0.85rem;
  color: var(--accent);
  background: rgba(45, 212, 191, 0.12);
  border: 1px solid rgba(94, 234, 212, 0.24);
}
.land-sol--soft .land-sol-ico {
  color: var(--accent-2, var(--accent));
  background: rgba(56, 189, 248, 0.12);
  border-color: rgba(56, 189, 248, 0.26);
}
.land-sol-ico svg {
  width: 23px;
  height: 23px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.land-sol-card h3 {
  margin: 0 0 0.4rem;
  font-family: var(--display);
  font-size: 1.08rem;
  font-weight: 650;
  letter-spacing: -0.01em;
  padding-right: 3.6rem;
}
.land-sol-card p { margin: 0; color: var(--muted); font-size: 0.88rem; line-height: 1.68; }
.land-sol-tag {
  position: absolute;
  top: 1.2rem;
  right: 1.2rem;
  font-family: var(--display);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 650;
  color: var(--muted);
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  opacity: 0.85;
}
[data-theme="light"] .land-sol-card { background: linear-gradient(165deg, #ffffff, #f2f6fb); }
[data-theme="cartoon"] .land-sol-card {
  background: linear-gradient(165deg, #fffdf8, #e7f6ff);
  border: 2px solid rgba(46, 196, 182, 0.22);
  box-shadow: 0 4px 0 rgba(46, 196, 182, 0.1);
}

/* -------- 合作机构轮播 -------- */
.land-orgs {
  position: relative;
  z-index: 1;
  padding: clamp(2.6rem, 6vw, 4.4rem) 0;
  background: var(--bg1);
  border-top: 1px solid var(--line);
}
.land-orgs-head {
  max-width: 48rem;
  margin: 0 auto clamp(1.4rem, 3.5vw, 2rem);
  padding: 0 max(1rem, calc((100% - min(1240px, calc(100% - 2rem))) / 2));
}
.land-orgs-sub {
  margin: 0.7rem 0 0;
  color: var(--muted);
  line-height: 1.72;
  max-width: 48em;
}
.land-orgs-marquee {
  position: relative;
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
}
.land-orgs-track {
  display: flex;
  width: max-content;
  animation: land-orgs-move 46s linear infinite;
}
.land-orgs-marquee:hover .land-orgs-track { animation-play-state: paused; }
.land-orgs-row {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: stretch;
}
.land-orgs-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  /* 用 margin 而非 gap：两行等宽，-50% 平移才能无缝衔接 */
  margin-right: 0.7rem;
  padding: 0.7rem 1.05rem;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.025);
  white-space: nowrap;
  transition: border-color 0.3s ease, background 0.3s ease;
}
.land-orgs-item:hover { border-color: var(--line-strong); background: rgba(255, 255, 255, 0.05); }
.land-orgs-mark {
  flex: 0 0 auto;
  width: 30px;
  height: 30px;
  background: var(--muted);
  opacity: 0.72;
  transition: background 0.3s ease, opacity 0.3s ease;
  -webkit-mask-image: var(--m);
  mask-image: var(--m);
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
  -webkit-mask-position: center;
  mask-position: center;
  -webkit-mask-size: contain;
  mask-size: contain;
}
.land-orgs-item:hover .land-orgs-mark { background: var(--accent); opacity: 1; }
.land-orgs-name {
  font-size: 0.82rem;
  color: var(--muted);
  letter-spacing: 0.01em;
}
.land-orgs-item:hover .land-orgs-name { color: var(--ink); }
[data-theme="light"] .land-orgs-item { background: rgba(20, 48, 72, 0.03); }

@keyframes land-orgs-move {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

@media (max-width: 900px) {
  .land-save-grid { grid-template-columns: 1fr; }
  .land-orgs-track { animation-duration: 32s; }
}

@media (prefers-reduced-motion: reduce) {
  .land-orgs-track { animation: none !important; }
  .land-sol-card,
  .land-orgs-item { transition: none !important; }
}