/* ============================================================
 * ai-module.css —— 首页 AI 模块（一屏讲完）
 * 结构：标题与副标题 → 场景与演示舞台 → 六项能力清单
 * 只动 transform / opacity，动画一次性播放，不轮播
 * ============================================================ */

/* 原有的两团大光晕会在本页形成一条竖向明暗分界，去掉，保持纯净深色 */
#ai.ai-highlight::before,
#ai.ai-highlight::after { content: none; }
#ai.ai-highlight { padding: 4.5rem 2rem 4rem; }

/* ---------- 头部 ---------- */
#ai .ai-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 44px;
}
#ai .ai-head h2 {
  position: relative;
  margin: 0 0 16px;
  letter-spacing: -.02em;
}
/* 打字机：占位层决定高度，实时层绝对定位，文字清空也不影响布局 */
#ai .ai-head .tw-ghost { display: block; visibility: hidden; }
#ai .ai-head .tw-live {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
}
#ai .ai-head .tw-l { min-height: 1.15em; line-height: 1.15; }
#ai .ai-head p {
  margin: 0 auto;
  max-width: 640px;
  font-size: 16px;
  line-height: 1.75;
  color: rgba(255, 255, 255, .62);
}

/* ---------- 主体：左侧三个场景 + 右侧演示窗 ---------- */
#ai .ai-main { min-width: 0; }
#ai .ai-flow {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 24px;
  align-items: stretch;
}

#ai .ai-tabs {
  display: grid;
  grid-auto-rows: 1fr;
  gap: 12px;
}
#ai .ai-tab {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 7px;
  padding: 20px 20px 20px 22px;
  border: 1px solid rgba(255, 255, 255, .07);
  border-radius: 14px;
  background: rgba(255, 255, 255, .02);
  font-family: inherit;
  text-align: left;
  cursor: pointer;
  color: inherit;
  transition: border-color .25s ease, background-color .25s ease;
}
#ai .ai-tab::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 22px;
  bottom: 22px;
  width: 2px;
  border-radius: 2px;
  background: #1e9be8;
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform .3s cubic-bezier(.2, .7, .2, 1);
}
#ai .ai-tab.is-on {
  border-color: rgba(255, 255, 255, .14);
  background: rgba(255, 255, 255, .045);
}
#ai .ai-tab.is-on::before { transform: scaleY(1); }
#ai .ai-tab:focus-visible {
  outline: 2px solid #1e9be8;
  outline-offset: 4px;
}
#ai .ai-tab-name {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.3;
  color: rgba(255, 255, 255, .55);
  transition: color .25s ease;
}
#ai .ai-tab.is-on .ai-tab-name { color: #fff; }
#ai .ai-tab-desc {
  font-size: 13px;
  line-height: 1.65;
  color: rgba(255, 255, 255, .38);
  transition: color .25s ease;
}
#ai .ai-tab.is-on .ai-tab-desc { color: rgba(255, 255, 255, .62); }

/* ---------- 演示窗口 ---------- */
#ai .ai-window {
  display: flex;
  flex-direction: column;
  height: 530px;
  border: 1px solid rgba(255, 255, 255, .09);
  border-radius: 18px;
  background: rgba(255, 255, 255, .035);
  overflow: hidden;
}
#ai .ai-window-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 0 0 auto;
  padding: 13px 18px;
  border-bottom: 1px solid rgba(255, 255, 255, .07);
}
#ai .ai-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .2);
}
#ai .ai-window-label {
  margin-left: auto;
  font-size: 12px;
  letter-spacing: .04em;
  color: rgba(255, 255, 255, .4);
}

#ai .ai-window-body { position: relative; flex: 1; min-height: 0; }
#ai .ai-panel {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 14px;
  padding: 18px 20px 20px;
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  transition: opacity .25s ease, visibility 0s .25s;
}
#ai .ai-panel.is-on {
  opacity: 1;
  visibility: visible;
  transition: opacity .25s ease;
}

/* ---------- 对话 ---------- */
#ai .ai-qa {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  gap: 7px;
  min-height: 0;
}
#ai .ai-qa > * {
  max-width: 80%;
  margin: 0;
  font-size: 13px;
  line-height: 1.5;
}
#ai .ai-q {
  align-self: flex-end;
  padding: 7px 12px;
  border-radius: 12px 12px 4px 12px;
  background: #1e9be8;
  color: #fff;
}
#ai .ai-a {
  align-self: flex-start;
  padding: 8px 13px;
  border-radius: 12px 12px 12px 4px;
  background: rgba(255, 255, 255, .07);
  color: rgba(255, 255, 255, .9);
}
/* 只把「行」变成块，行内的小图标仍是 inline */
#ai .ai-a > span { display: block; }
#ai .ai-a > span + span { margin-top: 1px; }
#ai .cmd { color: #7fd0ff; font-weight: 600; }
#ai .ok-tick { color: #4ade80; font-weight: 700; }
#ai .ai-a b { color: #4ade80; margin-right: 4px; }
#ai .ai-a .ai-check,
#ai .ai-a .ai-check + span { color: rgba(255, 255, 255, .82); }

/* ---------- 结果区 ---------- */
#ai .ai-out {
  flex: 0 0 auto;
  min-height: 0;
  padding: 14px 16px;
  border-radius: 12px;
  background: rgba(255, 255, 255, .05);
  opacity: 0;
  transform: translateY(12px);
}
#ai .ai-out-inner { overflow: hidden; }

/* ---------- 播放顺序（由 JS 逐阶段触发） ---------- */
/* 无 JS 时一切正常显示；JS 接管后由 .is-in 控制出场 */
#ai.ready .ai-panel .ai-a {
  opacity: 0;
  transform: translateY(10px);
}
#ai.ready .ai-panel .ai-a.is-in {
  opacity: 1;
  transform: none;
  transition: opacity .42s ease, transform .42s cubic-bezier(.2, .7, .2, 1);
}
#ai.ready .ai-panel .ai-a > span {
  opacity: 0;
  transform: translateY(6px);
}
#ai.ready .ai-panel .ai-a.is-in > span {
  opacity: 1;
  transform: none;
  transition: opacity .35s ease, transform .35s cubic-bezier(.2, .7, .2, 1);
}
#ai.ready .ai-panel .ai-a.is-in > span:nth-child(1) { transition-delay: .10s; }
#ai.ready .ai-panel .ai-a.is-in > span:nth-child(2) { transition-delay: .24s; }
#ai.ready .ai-panel .ai-a.is-in > span:nth-child(3) { transition-delay: .38s; }
#ai.ready .ai-panel .ai-a.is-in > span:nth-child(4) { transition-delay: .52s; }

/* 还没轮到打字的提问：先占位但不显示，避免出现空药丸 */
#ai .ai-q { transition: opacity .18s ease; }
#ai .ai-q:empty { opacity: 0; }

/* 正在打字的气泡末尾有个光标 */
#ai .ai-q.is-typing::after {
  content: "";
  display: inline-block;
  width: 1px;
  height: 1em;
  margin-left: 2px;
  vertical-align: -2px;
  background: currentColor;
  animation: ai-caret .8s steps(1) infinite;
}
@keyframes ai-caret { 50% { opacity: 0; } }

/* 结果区：整块淡入，内部条目依次出现 */
#ai.ready .ai-panel .ai-out {
  opacity: 0;
  transform: translateY(14px);
}
#ai.ready .ai-panel .ai-out.is-in {
  opacity: 1;
  transform: none;
  transition: opacity .5s ease, transform .5s cubic-bezier(.2, .7, .2, 1);
}
#ai.ready .ai-panel .ai-out .activity-item,
#ai.ready .ai-panel .ai-out .welfare-item,
#ai.ready .ai-panel .ai-out .mock-list-item {
  opacity: 0;
  transform: translateY(8px);
}
#ai.ready .ai-panel .ai-out.is-in .activity-item,
#ai.ready .ai-panel .ai-out.is-in .welfare-item,
#ai.ready .ai-panel .ai-out.is-in .mock-list-item {
  opacity: 1;
  transform: none;
  transition: opacity .38s ease, transform .38s cubic-bezier(.2, .7, .2, 1);
}
#ai.ready .ai-panel .ai-out.is-in .activity-item:nth-child(1),
#ai.ready .ai-panel .ai-out.is-in .welfare-item:nth-child(1),
#ai.ready .ai-panel .ai-out.is-in .mock-list-item:nth-child(2) { transition-delay: .10s; }
#ai.ready .ai-panel .ai-out.is-in .activity-item:nth-child(2),
#ai.ready .ai-panel .ai-out.is-in .welfare-item:nth-child(2),
#ai.ready .ai-panel .ai-out.is-in .mock-list-item:nth-child(3) { transition-delay: .22s; }
#ai.ready .ai-panel .ai-out.is-in .activity-item:nth-child(3),
#ai.ready .ai-panel .ai-out.is-in .mock-list-item:nth-child(4) { transition-delay: .34s; }
#ai.ready .ai-panel .ai-out.is-in .activity-item:nth-child(4),
#ai.ready .ai-panel .ai-out.is-in .mock-list-item:nth-child(5) { transition-delay: .46s; }
#ai.ready .ai-panel .ai-out.is-in .mock-list-item:nth-child(6) { transition-delay: .58s; }

/* 刚创建的那一条：蓝色左侧标记 */
#ai .activity-item.is-new .activity-title { color: #7fd0ff; }
#ai .activity-item.is-new .activity-dot { box-shadow: 0 0 0 3px rgba(30, 155, 232, .18); }

/* ---------- 结果区内部：复用原有 mock ---------- */
#ai .ai-out-inner .mock-activity,
#ai .ai-out-inner .mock-welfare,
#ai .ai-out-inner .mock-list {
  font-size: 13px;
  height: auto;
}
#ai .ai-out-inner .mock-activity { gap: 6px; }
#ai .ai-out-inner .mock-welfare { gap: 6px; }
#ai .ai-out-inner .mock-list { gap: 0; }

#ai .ai-out-inner .activity-item { padding: 3px 0; background: none; }
#ai .ai-out-inner .activity-title { font-size: .84rem; line-height: 1.4; }
#ai .ai-out-inner .activity-meta { font-size: .72rem; line-height: 1.5; color: rgba(255, 255, 255, .5); }
#ai .ai-out-inner .activity-progress {
  margin-top: 7px;
  width: 116px;
  height: 3px;
  border-radius: 2px;
  background: rgba(255, 255, 255, .16);
  overflow: hidden;
}
#ai .ai-out-inner .activity-progress-bar {
  width: 100%;
  height: 100%;
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left center;
}
#ai .ai-panel .ai-out.is-in .activity-progress-bar {
  transform: scaleX(var(--w, 1));
  transition: transform .55s cubic-bezier(.2, .7, .2, 1) .75s;
}
#ai .ai-panel .ai-out.is-in .activity-item:nth-child(2) .activity-progress-bar { transition-delay: .85s; }
#ai .ai-panel .ai-out.is-in .activity-item:nth-child(3) .activity-progress-bar { transition-delay: .95s; }
#ai .ai-panel .ai-out.is-in .activity-item:nth-child(4) .activity-progress-bar { transition-delay: 1.05s; }

#ai .ai-out-inner .welfare-item { padding: 6px 12px; }
#ai .ai-out-inner .welfare-title { font-size: .84rem; }
#ai .ai-out-inner .welfare-meta { font-size: .72rem; }
#ai .ai-out-inner .welfare-amount { font-size: .9rem; }

#ai .ai-out-inner .mock-list-header,
#ai .ai-out-inner .mock-list-item { font-size: .76rem; }
/* 表格行去掉浅色药丸底，改用细分隔线，避免“一叠小卡片” */
#ai .ai-out-inner .mock-list-item {
  padding: 4px 4px;
  border-radius: 0;
  background: none;
  border-bottom: 1px solid rgba(255, 255, 255, .05);
}
#ai .ai-out-inner .mock-list-item:last-child { border-bottom: 0; }
#ai .ai-out-inner .mock-list-item:hover { background: none; }
#ai .ai-out-inner .mock-list-header { padding: 0 4px 4px; }
#ai .ai-out-inner .mock-avatar { width: 20px; height: 20px; font-size: .62rem; }

/* ---------- 响应式 ---------- */
@media (max-width: 1023px) {
  #ai .ai-flow {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
    max-width: 680px;
  }
  /* 平板：三个场景横向铺开，简介保留 */
  #ai .ai-tabs {
    grid-auto-rows: auto;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
  }
  #ai .ai-tab { padding: 16px 16px 16px 18px; }
  #ai .ai-tab-name { font-size: 16px; }
  #ai .ai-tab::before { top: 18px; bottom: 18px; }
}

@media (max-width: 767px) {
  #ai.ai-highlight { padding: 3.5rem 1.25rem 3.25rem; }
  #ai .ai-head { margin-bottom: 32px; }
  #ai .ai-head h2 { font-size: 1.5rem; line-height: 1.35; }
  #ai .ai-head p { font-size: .95rem; }
  /* 手机：三个场景横向可滑，只留名称 */
  #ai .ai-tabs {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 2px;
    scrollbar-width: none;
  }
  #ai .ai-tabs::-webkit-scrollbar { display: none; }
  #ai .ai-tab {
    flex: 0 0 auto;
    padding: 10px 16px;
    border-radius: 999px;
  }
  #ai .ai-tab-desc { display: none; }
  #ai .ai-tab-name { font-size: 15px; }
  #ai .ai-tab::before { display: none; }
  #ai .ai-tab.is-on { border-color: rgba(30, 155, 232, .55); }
  #ai .ai-window { height: 540px; }
  #ai .ai-panel { gap: 12px; padding: 14px; }
  #ai .ai-qa { gap: 7px; }
  #ai .ai-qa > * { max-width: 100%; font-size: 12.5px; }
  #ai .ai-out { padding: 11px 12px; }
  #ai .ai-out-inner .mock-list-item:nth-child(n+6) { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  #ai .ai-panel .ai-a,
  #ai .ai-panel .ai-a > span,
  #ai .ai-panel .ai-out,
  #ai .ai-panel .ai-out .activity-item,
  #ai .ai-panel .ai-out .welfare-item,
  #ai .ai-panel .ai-out .mock-list-item,
  #ai .ai-panel .ai-out.is-in .activity-progress-bar {
    transition: none !important;
    transform: none !important;
  }
  #ai .ai-q.is-typing::after { display: none; }
  #ai .ai-tab,
  #ai .ai-tab::before { transition: none; }
}
/* AI 模块布局 */
#ai.ai-highlight{padding:96px 2rem}
#ai > .container{max-width:1200px}
#ai .ai-head{margin-bottom:48px}
#ai .ai-flow{grid-template-columns:minmax(0,1fr) minmax(0,2fr);gap:24px}
#ai .ai-tabs{gap:16px}
#ai .ai-tab{flex-direction:row;align-items:center;justify-content:flex-start;padding:22px;border-radius:16px;gap:16px;border-color:rgba(255,255,255,.1)}
#ai .ai-tab-copy{display:block;min-width:0}
#ai .ai-tab-name,#ai .ai-tab-desc{display:block}
#ai .ai-tab-name{font-size:22px;color:rgba(255,255,255,.82)}
#ai .ai-tab-desc{font-size:15px;line-height:1.7;color:rgba(255,255,255,.65)}
#ai .ai-tab.is-on{border-color:#1677ff;background:rgba(22,119,255,.08)}
#ai .ai-tab.is-on .ai-tab-desc{color:rgba(255,255,255,.8)}
#ai .ai-window{height:560px;border-radius:20px}
#ai .ai-icon{display:grid;place-items:center;flex:none;width:64px;height:64px;border-radius:16px;background:linear-gradient(135deg,#f4f8ff,#e3eeff);border:1px solid rgba(255,255,255,.5)}
#ai .ai-icon img{width:48px;height:48px;object-fit:contain}
#ai .ai-tab:not(.is-on) .ai-icon{opacity:.7}
@media (max-width: 1023px) {
  #ai .ai-tab { flex-direction: column; align-items: flex-start; }
  #ai .ai-tab-name { font-size: 16px; }
}
@media (max-width: 767px) {
  #ai.ai-highlight { padding: 3.5rem 1.25rem; }
  #ai .ai-tab { flex-direction: row; align-items: center; }
}
/* AI 模块视觉细节 */
#ai .ai-flow{position:relative;isolation:isolate}
#ai .ai-flow::before{content:"";position:absolute;z-index:-1;pointer-events:none;width:min(900px,100%);aspect-ratio:1;right:-10%;top:50%;transform:translateY(-50%);background:radial-gradient(circle,rgba(22,119,255,.14),transparent 70%)}
#ai .ai-window{position:relative}
#ai .ai-window::before{content:"";position:absolute;top:0;left:10%;width:80%;height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.45),transparent);pointer-events:none}
#ai .ai-a{position:relative;margin-left:32px}
#ai .ai-a::before{content:"";position:absolute;left:-32px;top:0;width:24px;height:24px;background:url("ai-icons/growth.webp") center/contain no-repeat}
#ai .ai-mcp{color:#4da3ff;font-weight:600}

/* 场景图标保持完整亮度 */
#ai .ai-tab:not(.is-on) .ai-icon{opacity:1}
#ai .ai-tab:not(.is-on) .ai-tab-name{color:rgba(255,255,255,.85)}
@media (min-width:1024px){
#ai.ai-highlight{padding:56px 2rem 48px}
#ai .ai-head{margin-bottom:28px}#ai .ai-head h2{font-size:40px;line-height:1.2;margin-bottom:12px}#ai .ai-head .tw-l{line-height:1.2}#ai .ai-head p{font-size:16px;max-width:640px;line-height:1.5}
#ai .ai-flow{height:clamp(380px,46vh,440px)}#ai .ai-window{height:100%}#ai .ai-tabs{gap:12px;min-height:0}#ai .ai-tab{padding:18px;min-height:0}#ai .ai-tab-name{font-size:20px}#ai .ai-tab-desc{font-size:14px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}#ai .ai-tab .ai-icon{width:56px;height:56px}#ai .ai-tab .ai-icon img{width:40px;height:40px}
#ai .ai-panel{padding:12px 16px;gap:8px;overflow-y:auto;justify-content:safe center}#ai .ai-out{padding:8px 12px}#ai .ai-out-inner .activity-item{padding:1px 0}#ai .ai-out-inner .activity-progress{margin-top:3px}#ai .ai-out-inner .mock-activity{gap:2px}#ai .ai-panel .activity-item:nth-child(n+4),#ai .ai-panel .welfare-item:nth-child(n+4),#ai .ai-panel .mock-list-item:nth-child(n+6){display:none}
}
/* 福利发放演示：压缩气泡和记录的间距，完整显示而不出现滚动条 */
@media (min-width:1024px){
 #ai #ai-panel-1{overflow:hidden;justify-content:center;gap:6px;padding:8px 16px}
 #ai #ai-panel-1 .ai-qa{gap:4px}
 #ai #ai-panel-1 .ai-qa > *{font-size:12px;line-height:1.32}
 #ai #ai-panel-1 .ai-q{padding:5px 10px}
 #ai #ai-panel-1 .ai-a{padding:5px 10px}
 #ai #ai-panel-1 .ai-out{padding:6px 8px}
 #ai #ai-panel-1 .mock-welfare{gap:4px}
 #ai #ai-panel-1 .welfare-item{padding:4px 8px}
}

/* 活动安排列表间距优化 */
@media (min-width: 1024px) {
  #ai #ai-panel-0 .mock-activity { gap: 8px; }
  #ai #ai-panel-0 .activity-item { padding: 2px 0; }
  #ai #ai-panel-0 .activity-title { margin-bottom: 4px; }
  #ai #ai-panel-0 .activity-meta { margin-bottom: 0; }
  #ai #ai-panel-0 .activity-progress { margin-top: 5px; }
}

/* 互动舞台与只读能力清单 */
#ai .ai-body {
  display: grid;
  gap: 48px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0;
}

#ai .ai-flow {
  position: relative;
  isolation: isolate;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 2fr);
  grid-template-rows: minmax(0, 1fr);
  gap: 16px;
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(255, 255, 255, .05), rgba(255, 255, 255, .02));
}
#ai .ai-flow::before {
  right: 0;
  top: 44%;
}
#ai .ai-flow::after {
  content: "";
  position: absolute;
  top: 0;
  inset-inline: 12%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .2), transparent);
  pointer-events: none;
}
#ai .ai-flow > * { min-width: 0; min-height: 0; }
#ai .ai-tabs {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
#ai .ai-tab {
  flex: 1 1 0;
  min-height: 0;
  padding: 10px 12px;
  align-items: center;
  gap: 12px;
  border-color: rgba(255, 255, 255, .1);
  background: rgba(255, 255, 255, .04);
  transition: none;
}
#ai .ai-tab-name,
#ai .ai-tab-desc { transition: none; }
#ai .ai-tab:not(.is-on) .ai-tab-name { color: rgba(255, 255, 255, .88); }
#ai .ai-tab .ai-tab-desc { color: rgba(255, 255, 255, .65); }
#ai .ai-tab.is-on {
  border-color: #1677ff;
  background: rgba(22, 119, 255, .16);
}
#ai .ai-tab.is-on .ai-tab-desc { color: rgba(255, 255, 255, .85); }
#ai .ai-tab::before { background: #1677ff; }
#ai .ai-tab:focus-visible { outline-color: #1677ff; }
#ai .ai-tab::after {
  content: "";
  box-sizing: border-box;
  flex: 0 0 14px;
  width: 14px;
  height: 14px;
  margin-inline-start: auto;
  border: 1.5px solid rgba(255, 255, 255, .35);
  border-radius: 50%;
  pointer-events: none;
}
#ai .ai-tab.is-on::after {
  border-color: #1677ff;
  background: radial-gradient(circle, #fff 2px, #1677ff 2.5px);
}
#ai .ai-tab-copy::after {
  content: "";
  position: absolute;
  z-index: 1;
  top: 50%;
  right: 0;
  width: 10px;
  height: 10px;
  border: solid #1677ff;
  border-width: 1px 1px 0 0;
  background: linear-gradient(rgba(22, 119, 255, .16), rgba(22, 119, 255, .16)), #15181d;
  opacity: 0;
  transform: translate(-1px, -50%) rotate(45deg);
  transition: opacity .25s ease, transform .25s ease;
  pointer-events: none;
}
#ai .ai-tab.is-on .ai-tab-copy::after {
  opacity: 1;
  transform: translate(50%, -50%) rotate(45deg);
}
#ai .ai-window {
  border-color: rgba(255, 255, 255, .06);
  background: rgba(0, 0, 0, .28);
}

#ai .ai-capabilities {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 0;
  padding: 0;
  list-style: none;
}
#ai .ai-cap {
  position: relative;
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 12px;
  min-width: 0;
  padding: 16px 14px;
  border-top: 1px solid rgba(255, 255, 255, .08);
}
#ai .ai-cap::before {
  content: "";
  position: absolute;
  inset-block: 12px;
  inset-inline-start: 0;
  width: 1px;
  background: rgba(255, 255, 255, .08);
  pointer-events: none;
}
#ai .ai-cap > div { min-width: 0; }
#ai .ai-cap .ai-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
}
#ai .ai-cap .ai-icon img { width: 30px; height: 30px; }
#ai .ai-cap h3 {
  margin: 0 0 4px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.4;
  color: #fff;
}
#ai .ai-cap p {
  display: -webkit-box;
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: rgba(255, 255, 255, .6);
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
}

@media (hover: hover) {
  #ai .ai-tab:not(.is-on):hover {
    border-color: rgba(22, 119, 255, .55);
    background: rgba(22, 119, 255, .08);
  }
}

@media (min-width: 1024px) {
  #ai.ai-highlight { padding-block: 28px 24px; }
  #ai .ai-flow { height: clamp(380px, 46vh, 440px); }
  #ai .ai-window-bar { padding-block: 9px; }
  #ai #ai-panel-1 { padding-block: 6px; }
  #ai .ai-tab .ai-tab-desc { font-size: 13px; }
}

@media (min-width: 1024px) and (max-height: 860px) {
  #ai #ai-panel-0 { padding-block: 7px; gap: 6px; }
  #ai #ai-panel-0 .ai-out { padding-block: 6px; }
  #ai #ai-panel-1 { padding-block: 3px; gap: 4px; justify-content: safe center; }
  #ai #ai-panel-1 .ai-qa { gap: 3px; }
  #ai #ai-panel-1 .ai-out { padding-block: 2px; }
  #ai #ai-panel-1 .welfare-item { padding-block: 3px; }
  #ai #ai-panel-1 .welfare-icon { width: 28px; height: 28px; }
  #ai #ai-panel-1 .ai-q, #ai #ai-panel-1 .ai-a { padding-block: 4px; }
}

@media (min-width: 768px) and (max-width: 1023px) {
  #ai .ai-flow {
    width: 100%;
    max-width: 680px;
    margin-inline: auto;
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: auto auto;
  }
  #ai .ai-tabs {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
  }
  #ai .ai-tab { align-items: flex-start; padding: 12px 10px; }
  #ai .ai-tab .ai-icon { width: 40px; height: 40px; border-radius: 12px; }
  #ai .ai-tab .ai-icon img { width: 30px; height: 30px; }
  #ai .ai-tab .ai-tab-desc { font-size: 13px; line-height: 1.5; }
  #ai .ai-tab::after {
    position: absolute;
    top: 16px;
    right: 12px;
  }
  #ai .ai-tab-copy::after {
    top: auto;
    bottom: 0;
    right: auto;
    left: 50%;
    transform: translate(-50%, -1px) rotate(135deg);
  }
  #ai .ai-tab.is-on .ai-tab-copy::after { transform: translate(-50%, 50%) rotate(135deg); }
  #ai .ai-capabilities { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 767px) {
  #ai .ai-flow {
    width: 100%;
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: auto auto;
    gap: 12px;
    padding: 12px;
  }
  #ai .ai-tabs {
    display: flex;
    flex-direction: row;
    gap: 8px;
    overflow-x: auto;
    padding: 4px;
  }
  #ai .ai-tab {
    flex: 0 0 auto;
    min-height: 44px;
    gap: 8px;
    padding: 6px 10px;
    white-space: nowrap;
  }
  #ai .ai-tab .ai-icon { width: 32px; height: 32px; border-radius: 10px; }
  #ai .ai-tab .ai-icon img { width: 24px; height: 24px; }
  #ai .ai-tab-desc, #ai .ai-tab-copy::after { display: none; }
  #ai .ai-window { height: 540px; }
  #ai #ai-panel-1 { padding: 10px 12px; gap: 8px; }
  #ai #ai-panel-1 .ai-qa { gap: 5px; }
  #ai #ai-panel-1 .ai-qa > * { line-height: 1.4; }
  #ai #ai-panel-1 .ai-q, #ai #ai-panel-1 .ai-a { padding-block: 6px; }
  #ai #ai-panel-1 .welfare-icon { width: 28px; height: 28px; }
  #ai #ai-panel-1 .welfare-item { padding: 5px 6px; gap: 6px; }
  #ai #ai-panel-1 .welfare-info { min-width: 0; }
  #ai .ai-capabilities { grid-template-columns: minmax(0, 1fr); }
}

@media (prefers-reduced-motion: reduce) {
  #ai .ai-tab-copy::after { transition: none; }
}


/* 第二行前五个字保留白色，高光固定在「智能对话」的字位。 */
@supports (background-clip: text) {
  #ai .tw-live .tw-l[data-text="而是真正的智能对话"] {
    background:
      linear-gradient(#fff, #fff) left / 4.9em 100% no-repeat,
      linear-gradient(135deg, #fff, #4da3ff) 4.9em 0 / 4em 100% no-repeat,
      #fff;
    background-clip: text;
    color: transparent;
  }
}

/* Open capability grid: independent of the interactive stage. */
#ai .ai-capabilities {
  position: relative;
  grid-template-columns: repeat(6, minmax(0, 1fr));
}
#ai .ai-capabilities::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.16) 15%, rgba(255,255,255,.16) 85%, transparent);
}
#ai .ai-cap {
  flex-direction: column;
  align-items: flex-start;
  gap: 14px;
  padding: 22px 20px;
  border: 0;
}
#ai .ai-cap::before { inset-block: 8px; }
#ai .ai-cap .ai-icon {
  position: relative;
  isolation: isolate;
  width: var(--cap-icon-size, 48px);
  height: var(--cap-icon-size, 48px);
  border: 0;
  border-radius: 0;
  background: none;
}
#ai .ai-cap .ai-icon::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 50% auto auto 50%;
  width: 96px;
  height: 96px;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle closest-side, rgba(22,119,255,.22), transparent);
  pointer-events: none;
}
#ai .ai-cap .ai-icon img { width: 100%; height: 100%; }
#ai .ai-cap h3 { margin-bottom: 6px; }
#ai .ai-cap p {
  display: block;
  line-height: 1.65;
  color: rgba(255,255,255,.58);
  overflow: visible;
}
@media (min-width: 1200px) {
  #ai .ai-cap:nth-child(6n + 1)::before { content: none; }
}
@media (max-width: 1199px) {
  #ai .ai-capabilities { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  #ai .ai-cap:nth-child(3n + 1)::before { content: none; }
  #ai .ai-cap:nth-child(n + 4) { border-top: 1px solid rgba(255,255,255,.08); }
  #ai .ai-cap {
    --cap-icon-size: 28px;
    gap: 4px;
    padding: 5px 14px;
  }
  #ai .ai-cap h3 { margin-bottom: 3px; }
}
@media (max-width: 767px) {
  #ai .ai-capabilities { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  #ai .ai-cap {
    --cap-icon-size: 40px;
    gap: 10px;
    padding: 16px 14px;
  }
  #ai .ai-cap:nth-child(n + 3) { border-top: 1px solid rgba(255,255,255,.08); }
  #ai .ai-cap:nth-child(odd)::before { content: none; }
  #ai .ai-cap:nth-child(even)::before { content: ""; }
  #ai .ai-cap h3 { margin-bottom: 6px; }
}

@media (prefers-reduced-motion: no-preference) {
  #ai .ai-capabilities[data-rv] {
    opacity: 1;
    transform: none;
    transition: none;
  }
  #ai .ai-capabilities[data-rv] .ai-cap {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity .7s cubic-bezier(.2,.7,.2,1), transform .7s cubic-bezier(.2,.7,.2,1);
    transition-delay: calc(var(--cap-order, 0) * 60ms);
  }
  #ai .ai-capabilities.rv-in .ai-cap { opacity: 1; transform: none; }
  #ai .ai-cap:nth-child(2) { --cap-order: 1; }
  #ai .ai-cap:nth-child(3) { --cap-order: 2; }
  #ai .ai-cap:nth-child(4) { --cap-order: 3; }
  #ai .ai-cap:nth-child(5) { --cap-order: 4; }
  #ai .ai-cap:nth-child(6) { --cap-order: 5; }
}
@media (hover: hover) and (prefers-reduced-motion: no-preference) {
  #ai .ai-cap .ai-icon img { transition: transform .3s cubic-bezier(.2,.7,.2,1); }
  #ai .ai-cap:hover .ai-icon img { transform: translateY(-4px); }
}


@media (min-width: 1024px) and (max-width: 1199px) {
  #ai .ai-cap { --cap-icon-size: 24px; padding-block: 2px; }
}