/* ==========================================================================
   区块层（二）：AI 情感 / 树洞 / 隐私 / 关于我们 / 用户声音 / 黎明 CTA / 页脚 / 响应式
   ========================================================================== */

/* ---------- ④ AI 情感：记忆 ---------- */
.ai-memory {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 64px;
  align-items: center;
}
.memory-list { margin-top: 38px; border-top: 1px solid var(--line); }
.memory-list li {
  display: flex;
  align-items: baseline;
  gap: 18px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  font-size: 16px;
}
.memory-list .mono { font-size: 11px; letter-spacing: 0.12em; color: var(--violet-2); }

.mood-panel { padding: 28px 28px 24px; }
.mood-head { display: flex; align-items: flex-end; justify-content: space-between; }
.mood-head span { font-size: 12px; letter-spacing: 0.14em; color: var(--text-3); }
.mood-value {
  font-family: var(--font-mono);
  font-size: 58px;
  font-weight: 300;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  background: var(--aurora);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.mood-chart { width: 100%; height: 220px; margin-top: 12px; overflow: visible; }
.mc-grid { stroke: var(--line); stroke-width: 1; }
.mc-line { fill: none; stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round; }
.mc-dot { fill: var(--night-1); stroke: var(--violet-2); stroke-width: 2; }
.mc-low { stroke: var(--rose); }
.mc-ping { fill: none; stroke: var(--rose); transform-box: fill-box; transform-origin: center; animation: ping 2.4s var(--ease-out) infinite; }
.mc-tip { fill: var(--rose); font-size: 12px; font-family: var(--font-sans); }
@keyframes ping { from { transform: scale(0.6); opacity: 0.9; } to { transform: scale(2.6); opacity: 0; } }

.mood-days {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  margin: 4px 0 22px;
  font-size: 11px;
  text-align: center;
  color: var(--text-3);
}
.reminder {
  display: flex;
  gap: 14px;
  padding: 16px 18px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
}
.reminder .presence-dot { margin-top: 9px; }
.reminder strong { font-size: 14px; font-weight: 500; }
.reminder p { font-size: 14px; line-height: 1.8; color: var(--text-2); }

/* ---------- ④ AI 情感：多模态感知 ---------- */
.sensing { margin-top: clamp(120px, 14vw, 180px); }
.sensing-panel { display: grid; grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr); overflow: hidden; }
.sensing-copy { align-self: center; padding: 52px 48px; }
.sensing-copy h3 { margin-bottom: 16px; font-size: 26px; font-weight: 500; letter-spacing: 0.02em; }
.sensing-copy p { font-size: 15.5px; line-height: 1.95; color: var(--text-2); }
.sensing-viz { display: grid; grid-template-columns: 1fr 1fr; min-height: 440px; border-left: 1px solid var(--line); }
.scan { position: relative; border-right: 1px solid var(--line); }
.scan canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.signals { display: grid; grid-template-rows: repeat(3, 1fr); }
.signal { display: flex; flex-direction: column; gap: 8px; padding: 18px 20px; border-bottom: 1px solid var(--line); }
.signal:last-child { border-bottom: 0; }
.signal span { font-size: 11px; letter-spacing: 0.1em; color: var(--text-3); }
.signal canvas { flex: 1; width: 100%; min-height: 64px; }

/* ---------- ⑤ 树洞 ---------- */
.treehole-panel {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 580px;
  padding: clamp(36px, 6vw, 84px);
  overflow: hidden;
}
.treehole-panel::before {
  content: "";
  position: absolute;
  right: -8%;
  top: 50%;
  width: 62%;
  aspect-ratio: 1;
  transform: translateY(-50%);
  border-radius: 50%;
  background:
    radial-gradient(circle, rgba(139, 124, 255, 0.26), rgba(91, 140, 255, 0.07) 42%, transparent 66%),
    repeating-radial-gradient(circle, transparent 0 46px, rgba(179, 168, 255, 0.1) 47px 48px);
  -webkit-mask-image: radial-gradient(circle, #000 32%, transparent 70%);
  mask-image: radial-gradient(circle, #000 32%, transparent 70%);
  animation: portal 10s ease-in-out infinite;
}
@keyframes portal {
  0%, 100% { transform: translateY(-50%) scale(0.97); opacity: 0.85; }
  50% { transform: translateY(-50%) scale(1.03); opacity: 1; }
}
.treehole-canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.treehole-copy { position: relative; z-index: 1; max-width: 520px; }

.treehole-form {
  display: flex;
  gap: 8px;
  max-width: 470px;
  margin-top: 38px;
  padding: 6px;
  border-radius: 999px;
  border: 1px solid var(--line-2);
  background: rgba(5, 5, 15, 0.55);
  transition: border-color 0.3s, box-shadow 0.3s;
}
.treehole-form:focus-within,
.treehole-form.is-typing { border-color: rgba(179, 168, 255, 0.55); box-shadow: 0 0 0 4px rgba(139, 124, 255, 0.14); }
/* 自动演示时模拟“按下”按钮 */
.treehole-form .btn.is-pressed { transform: scale(0.95); }
.treehole-form .btn.is-pressed::before { opacity: 1; filter: blur(22px); }
.treehole-form input {
  flex: 1;
  min-width: 0;
  padding: 0 18px;
  border: 0;
  outline: none;
  background: transparent;
  font-size: 16px;
}
.treehole-form input::placeholder { color: var(--text-3); }
.treehole-form.is-demo input::placeholder { color: transparent; } /* 自动演示时不露出占位文字，免得和碎成光粒的句子叠在一起 */
.treehole-hint { margin-top: 14px; padding-left: 22px; font-size: 11px; letter-spacing: 0.12em; color: var(--text-3); }

/* ---------- ⑥ 隐私 ---------- */
.privacy-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--line); }
.principle { padding: 38px 28px 8px 0; }
.principle + .principle { padding-left: 28px; border-left: 1px solid var(--line); }
.principle-icon {
  width: 34px;
  height: 34px;
  margin-bottom: 30px;
  fill: none;
  stroke: var(--violet-2);
  stroke-width: 1.4;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.principle h3 { margin-bottom: 12px; font-size: 20px; font-weight: 500; letter-spacing: 0.04em; }
.principle p { font-size: 14.5px; line-height: 1.85; color: var(--text-2); }

/* ---------- ⑦ 关于我们 ---------- */
.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: 64px;
  align-items: start;
}
.about-lead { padding-top: 46px; font-size: clamp(17px, 1.45vw, 19px); line-height: 2.05; color: var(--text-2); }
.about-lead strong { font-weight: 500; color: var(--text); }
.about-lead mark {
  padding: 0 0.12em;
  border-radius: 3px;
  background: none;
  color: var(--text);
  box-shadow: inset 0 -0.42em 0 rgba(139, 124, 255, 0.28);
}

.beliefs { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 96px; }
.belief {
  padding: 40px 40px 44px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: linear-gradient(160deg, rgba(139, 124, 255, 0.09), rgba(255, 255, 255, 0.01) 62%);
}
.belief figcaption { margin-bottom: 26px; font-size: 11px; letter-spacing: 0.16em; color: var(--text-3); }
.statement { font-size: clamp(24px, 2.4vw, 32px); line-height: 1.55; }

.vision {
  position: relative;
  isolation: isolate;
  margin-top: clamp(130px, 15vw, 200px);
  padding-top: 170px;
  text-align: center;
}
.vision > :not(.vision-beam) { position: relative; z-index: 1; }
.vision .eyebrow { justify-content: center; }
.vision .display-2 { text-shadow: 0 0 42px rgba(255, 214, 170, 0.35); }

/* 一束光从上方照下来：光源 → 向下张开的光锥 → 几道光柱 → 光里飘着的微尘 */
.vision-beam {
  position: absolute;
  left: 50%;
  top: -110px;
  z-index: 0;
  width: min(1100px, 140vw);
  height: calc(100% + 150px);
  transform: translateX(-50%);
  pointer-events: none;
}
.beam-source {
  position: absolute;
  left: 50%;
  top: 0;
  width: 260px;
  height: 70px;
  transform: translate(-50%, -45%);
  border-radius: 50%;
  background: radial-gradient(50% 50% at 50% 50%, rgba(255, 240, 215, 0.95), rgba(255, 205, 150, 0.4) 45%, transparent 75%);
  filter: blur(8px);
}
/* CSS 先模糊再裁切：模糊放在外层、裁切放在内层，光锥边缘才是柔的 */
.beam-cone {
  position: absolute;
  inset: 0;
  filter: blur(24px);
}
.beam-cone::before {
  content: "";
  position: absolute;
  inset: 0;
  clip-path: polygon(45% 0, 55% 0, 90% 100%, 10% 100%);
  background: linear-gradient(180deg, rgba(255, 226, 190, 0.34) 0%, rgba(255, 205, 150, 0.15) 40%, rgba(255, 180, 150, 0.05) 78%, transparent 100%);
}
.beam-rays {
  position: absolute;
  inset: 0;
  transform-origin: 50% 0;
  background: conic-gradient(from 148deg at 50% 0%,
    transparent 0deg, rgba(255, 222, 185, 0.14) 5deg, transparent 9deg,
    transparent 13deg, rgba(255, 222, 185, 0.26) 17deg, transparent 22deg,
    rgba(255, 222, 185, 0.1) 25deg, transparent 29deg,
    transparent 32deg, rgba(255, 222, 185, 0.3) 35deg, transparent 40deg,
    rgba(255, 222, 185, 0.12) 43deg, transparent 47deg,
    transparent 51deg, rgba(255, 222, 185, 0.18) 55deg, transparent 60deg,
    transparent 64deg);
  -webkit-mask-image: linear-gradient(180deg, #000 0%, rgba(0, 0, 0, 0.75) 40%, transparent 92%);
  mask-image: linear-gradient(180deg, #000 0%, rgba(0, 0, 0, 0.75) 40%, transparent 92%);
  filter: blur(6px);
  animation: beam-shimmer 10s ease-in-out infinite alternate;
}
.beam-motes i {
  position: absolute;
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: rgba(255, 240, 220, 0.95);
  box-shadow: 0 0 6px rgba(255, 214, 170, 0.9);
  opacity: 0;
  animation: beam-mote 11s linear infinite;
}
.beam-motes i:nth-child(1) { left: 47%; top: 14%; animation-delay: 0s; }
.beam-motes i:nth-child(2) { left: 53%; top: 22%; animation-delay: -2.2s; animation-duration: 13s; }
.beam-motes i:nth-child(3) { left: 41%; top: 36%; animation-delay: -4.1s; }
.beam-motes i:nth-child(4) { left: 58%; top: 40%; animation-delay: -6.3s; animation-duration: 14s; }
.beam-motes i:nth-child(5) { left: 50%; top: 30%; animation-delay: -8s; width: 2px; height: 2px; }
.beam-motes i:nth-child(6) { left: 36%; top: 52%; animation-delay: -1.4s; animation-duration: 12s; }
.beam-motes i:nth-child(7) { left: 63%; top: 56%; animation-delay: -5.2s; width: 2px; height: 2px; }
.beam-motes i:nth-child(8) { left: 45%; top: 62%; animation-delay: -9.5s; animation-duration: 15s; }
.beam-motes i:nth-child(9) { left: 56%; top: 12%; animation-delay: -3.3s; width: 2px; height: 2px; }
.beam-motes i:nth-child(10) { left: 39%; top: 24%; animation-delay: -7.4s; animation-duration: 13s; }
@keyframes beam-shimmer {
  from { opacity: 0.75; transform: rotate(-1.4deg); }
  to { opacity: 1; transform: rotate(1.4deg); }
}
@keyframes beam-mote {
  0% { opacity: 0; transform: translate(0, 0); }
  20% { opacity: 0.9; }
  75% { opacity: 0.55; }
  100% { opacity: 0; transform: translate(12px, 70px); }
}
.vision-items {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  max-width: 900px;
  margin: 56px auto 0;
  text-align: left;
}
.vision-items > div {
  padding: 28px 30px;
  border-radius: 22px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
}
.vision-items dt { margin-bottom: 12px; font-size: 11px; letter-spacing: 0.16em; color: var(--dawn); }
.vision-items dd { font-size: 17px; line-height: 1.8; }

/* ---------- ⑧ 用户声音 ---------- */
.voice-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; align-items: start; }
.voice {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 260px;
  padding: 36px 32px 28px;
}
.voice:nth-child(2) { margin-top: 48px; }
.voice blockquote {
  font-family: var(--font-sans);
  font-size: clamp(21px, 2vw, 26px);
  font-weight: 300;
  line-height: 1.6;
}
.voice figcaption { display: flex; align-items: center; gap: 10px; margin-top: 34px; font-size: 14px; }
.voice figcaption .mono { font-size: 12px; color: var(--text-3); }
.voice-avatar {
  flex: none;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.1), 0 6px 18px -6px rgba(0, 0, 0, 0.6);
}

/* ---------- ⑨ 黎明 CTA ---------- */
.cta {
  position: relative;
  padding: clamp(140px, 16vw, 220px) 0 clamp(150px, 15vw, 210px);
  overflow: hidden;
  text-align: center;
}
.horizon { position: absolute; inset: 0; pointer-events: none; }
.sun {
  position: absolute;
  left: 50%;
  bottom: 0;
  width: min(1500px, 130vw);
  aspect-ratio: 2.2;
  transform: translate(-50%, 42%);
  border-radius: 50%;
  background: radial-gradient(50% 50% at 50% 50%,
      rgba(255, 226, 190, 0.9) 0%,
      rgba(255, 190, 150, 0.55) 24%,
      rgba(255, 143, 177, 0.26) 46%,
      rgba(139, 124, 255, 0.1) 64%,
      transparent 72%);
  animation: sunrise 14s ease-in-out infinite alternate;
}
.horizon-line {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 226, 190, 0.7), transparent);
}
@keyframes sunrise {
  from { transform: translate(-50%, 48%) scale(0.96); opacity: 0.85; }
  to { transform: translate(-50%, 38%) scale(1.02); opacity: 1; }
}
.cta-inner { position: relative; z-index: 1; }
.cta .eyebrow { justify-content: center; }
.cta .display { margin-bottom: 26px; font-size: clamp(40px, 5.6vw, 80px); }

.download {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-top: 50px;
}
.store-links { display: flex; gap: 10px; }
.store {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 50px;
  padding: 0 20px;
  border-radius: 999px;
  border: 1px solid var(--line-2);
  background: rgba(10, 10, 30, 0.35);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  font-size: 14px;
  transition: background 0.3s, border-color 0.3s;
}
.store:hover { background: rgba(255, 255, 255, 0.09); border-color: rgba(255, 255, 255, 0.3); }
.store svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.5; stroke-linecap: round; }
.qr {
  display: grid;
  place-items: center;
  width: 92px;
  height: 92px;
  border-radius: 16px;
  border: 1px dashed rgba(255, 255, 255, 0.32);
  background: rgba(10, 10, 30, 0.3);
  font-size: 10px;
  color: var(--text-3);
}
.toast {
  position: fixed;
  left: 50%;
  bottom: 40px;
  z-index: 1000;
  padding: 12px 22px;
  border-radius: 999px;
  border: 1px solid var(--line-2);
  background: rgba(10, 10, 30, 0.72);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  color: var(--text-1);
  font-size: 14px;
  letter-spacing: 0.02em;
  pointer-events: none;
  opacity: 0;
  transform: translate(-50%, 12px);
  transition: opacity 0.28s ease, transform 0.28s ease;
}
.toast.is-show {
  opacity: 1;
  transform: translate(-50%, 0);
}

/* ---------- 页脚 ---------- */
.footer {
  position: relative;
  padding: 64px 0 40px;
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(5, 5, 15, 0.55), rgba(5, 5, 15, 0.92));
}
.footer-inner { display: grid; grid-template-columns: 1.4fr 1fr; gap: 40px 64px; }
.footer-brand p { max-width: 28em; margin-top: 16px; font-size: 14px; color: var(--text-3); }
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  align-content: flex-start;
  justify-content: flex-end;
  gap: 8px 28px;
  font-size: 14px;
  color: var(--text-2);
}
.footer-nav a:hover { color: var(--text); }
.footer-legal {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 28px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  color: var(--text-3);
}
.footer-legal a:hover { color: var(--text-2); }

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .hero { min-height: auto; padding-top: calc(var(--header-h) + 72px); }
  .hero-grid { grid-template-columns: 1fr; gap: 12px; }
  .hero-stage { min-height: 640px; }
  .orb-wrap { width: min(600px, 100%); top: 40%; }
  .demo-card { right: 50%; transform: translateX(50%); }
  .moment-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ai-memory, .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .about-lead { padding-top: 0; }
  .sensing-panel { grid-template-columns: 1fr; }
  .sensing-viz { border-left: 0; border-top: 1px solid var(--line); }
  .privacy-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .principle:nth-child(3) { padding-left: 0; border-left: 0; }
}

@media (max-width: 760px) {
  .hero { padding-top: calc(var(--header-h) + 48px); padding-bottom: 72px; }
  .hero-actions .btn { flex: 1; }
  .hero-stage { min-height: 0; margin-top: 8px; }
  .orb-wrap { position: relative; left: auto; top: auto; width: min(420px, 108%); margin: -20px auto -150px; transform: none; }
  .demo-card { position: relative; right: auto; bottom: auto; width: 100%; transform: none; }
  .scroll-cue { display: none; }

  .moment-grid, .voice-grid, .beliefs, .vision-items, .privacy-grid { grid-template-columns: 1fr; }
  .bento { grid-template-columns: 1fr; }
  .panel-voice { flex-direction: column; height: auto; }
  .panel-body, .panel-voice .panel-body { padding: 26px 24px 30px; }
  .panel-visual { height: 240px; }
  .rooms-modes { bottom: 10px; }
  .rooms-modes button { height: 26px; padding: 0 9px; font-size: 11.5px; }
  .phone { width: 100%; height: auto; padding: 10px 0 44px; }
  .device { --device-w: 220px; }

  .sensing-copy { padding: 34px 26px; }
  .sensing-viz { grid-template-columns: 1fr; }
  .scan { height: 280px; border-right: 0; border-bottom: 1px solid var(--line); }

  .treehole-panel { min-height: 520px; padding: 36px 24px; align-items: flex-end; }
  .treehole-panel::before { right: -40%; top: 14%; width: 110%; }
  .treehole-form { flex-direction: column; padding: 0; border: 0; border-radius: 0; background: none; box-shadow: none !important; }
  .treehole-form input { flex: none; height: 52px; border-radius: 999px; border: 1px solid var(--line-2); background: rgba(5, 5, 15, 0.6); }
  .treehole-form.is-typing input { border-color: rgba(179, 168, 255, 0.55); }
  .treehole-hint { padding-left: 0; text-align: center; }

  .principle, .principle + .principle, .principle:nth-child(3) { padding: 30px 0; border-left: 0; border-bottom: 1px solid var(--line); }
  .belief { padding: 30px 26px 34px; }
  .voice:nth-child(2) { margin-top: 0; }
  .voice { min-height: 0; }

  .download { flex-direction: column; }
  .store-links { width: 100%; justify-content: center; }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-nav { justify-content: flex-start; }
}