/* ============================================================================
   「AI 对话」多模型对比 · 样式（2026-10-12 · 第五次改版）
   ----------------------------------------------------------------------------
   🔴🔴 本次最重要的一处修复 —— **子页关不掉（老板：「返回时跑到别的功能下面了」）**：
     上版这里写了 `#sub-aichat { display: flex; ... }`。
     ID 选择器 (1,0,0) **压过** `style.css` 的 `.subpanel { display: none }` (0,1,0)
     ⇒ 这个子页**永远显示**，返回切到别的板块后内容还糊在上面（老板截图里
       「AI 混剪 / AI 音乐」页面顶部叠着一层 AI 对话，就是这么来的）。
     ⇒ 现在 `#sub-aichat` **只放 CSS 变量**；显示规则写在 `#sub-aichat.active`。
     🔴 通用教训：**给子页写 `#id { display:… }` 必须带 `.active`**，否则那个子页永远关不掉。
   ----------------------------------------------------------------------------
   🔴 作用域：子页内的一切挂在 `#sub-aichat` 下（铁律：新类名全局唯一，裸类名跨功能吃样式）。
   设计定位：聊天原生 + 酷炫 banner —— 三列同屏、用户蓝气泡靠右、
     每列「得分」胶囊可展开、底部灰输入框 + 圆形发送键 + 联网胶囊（默认点亮）。
   ========================================================================== */

#sub-aichat {
  --aic-c1: #6366f1;     /* 靛蓝 */
  --aic-c2: #4338ca;     /* 深靛 */
  --aic-ink: #1e1b4b;    /* 深靛墨（文字） */
  --aic-line: #e2e5f5;   /* 冷边线 */
  --aic-soft: #f5f6fe;   /* 冷底 */
  --aic-gray: #f2f3f7;   /* 输入框灰底 */
}
/* 🔴 必须带 .active —— 见文件头说明（写死 display 会让子页永远关不掉） */
#sub-aichat.active { display: flex; flex-direction: column; }
#sub-aichat .aic-root { display: flex; flex-direction: column; padding: 0 0 4px; }
#sub-aichat .aic-feed { padding: 2px 0 6px; }
#sub-aichat .aic-empty { color: #a8afc7; font-size: 12.5px; text-align: center; padding: 22px 0; }

/* ============================================================================
   顶栏「返回」的显隐（第六改）
   🔴🔴 必须写 `!important`：`index.html` 里的 `.sub-back { display: inline-flex }`
      与本条**同优先级**（都是 0,1,0），而 `[hidden]` 的 `display:none` 只是浏览器默认样式
      （作者样式永远压过默认样式）⇒ 不写 !important 的话，加了 `hidden` 属性**照样显示**。
      （同一个坑项目里踩过：判「元素可见」不能靠属性猜，要看真实高度。）
   ============================================================================ */
#sub-aichat .sub-back[hidden] { display: none !important; }

/* ---- 一级顶部「继续上次对话」细条（返回一级**不丢对话**）---- */
#sub-aichat .aic-resume {
  width: 100%; display: flex; align-items: center; gap: 8px; margin: 0 0 10px;
  padding: 9px 12px; border-radius: 12px; cursor: pointer;
  font-family: inherit; font-size: 12.5px; text-align: left;
  border: 1px solid #ddd9f5; background: #f7f5ff; color: #4b3fa8;
}
#sub-aichat .aic-resume-a { font-size: 15px; line-height: 1; opacity: .7; }
#sub-aichat .aic-resume-t { font-weight: 700; }
#sub-aichat .aic-resume-n { margin-left: auto; font-size: 11.5px; color: #8b83c4; }
#sub-aichat .aic-resume:active { background: #efeaff; }

/* ============================================================================
   ① 欢迎态：酷炫 BANNER（老板：「这里缺一个酷酷的 BANNER」）
     手法照 `.hero`（hero.css）：三层背景叠加（顶光 → 右上光斑 → 主渐变）+ 细亮线 + 带色阴影。
     ⚠️ 用自己的 `aic-` 类名，不复用 `.hero` —— 裸类名会跨功能吃样式。
   ========================================================================== */
#sub-aichat .aic-hero {
  position: relative; overflow: hidden; isolation: isolate;
  border-radius: 20px; padding: 24px 18px 20px; margin-bottom: 14px;
  color: #fff; text-align: center;
  border: 1px solid rgba(255, 255, 255, .20);
  background-image:
    radial-gradient(122% 78% at 50% -26%, rgba(255, 255, 255, .34) 0%, rgba(255, 255, 255, 0) 56%),
    radial-gradient(70% 58% at 92% 4%, rgba(196, 200, 255, .52) 0%, rgba(255, 255, 255, 0) 64%),
    linear-gradient(155deg, #7c7ffb 0%, #4b45d6 52%, #221c5e 100%);
  box-shadow: 0 16px 34px -14px rgba(67, 56, 202, .55), 0 2px 6px rgba(30, 27, 75, .06);
}
/* 两颗呼吸光球（"酷"的来源；纯装饰，不吃交互） */
#sub-aichat .aic-hero-orb {
  position: absolute; border-radius: 50%; pointer-events: none;
  background: radial-gradient(circle, rgba(255, 255, 255, .30) 0%, rgba(255, 255, 255, 0) 70%);
  animation: aic-orb 5.5s ease-in-out infinite;
}
#sub-aichat .aic-hero-orb.o1 { width: 168px; height: 168px; right: -52px; top: -62px; }
#sub-aichat .aic-hero-orb.o2 { width: 120px; height: 120px; left: -44px; bottom: -52px; animation-delay: 1.6s; }
@keyframes aic-orb {
  0%, 100% { transform: scale(1); opacity: .85; }
  50% { transform: scale(1.16); opacity: .55; }
}
#sub-aichat .aic-hero-t { position: relative; font-size: 23px; font-weight: 800; letter-spacing: .5px; }
#sub-aichat .aic-hero-s { position: relative; font-size: 12.5px; opacity: .88; margin-top: 7px; line-height: 1.65; }
#sub-aichat .aic-hero-b { position: relative; display: flex; gap: 6px; margin-top: 13px; justify-content: center; flex-wrap: wrap; }
#sub-aichat .aic-hero-b span {
  font-size: 11px; padding: 4px 10px; border-radius: 20px;
  background: rgba(255, 255, 255, .16); border: 1px solid rgba(255, 255, 255, .20);
}

/* ============================================================================
   ② 模型选择网格（🔴 老板：「在这个位置就应该把快速和旗舰选完，不用再打开左下角再选一遍」）
     ⇒ 每个品牌卡**自带两个档位按钮**；底部那行只做展示。
     ⇒ 再点一次已选中的档位 = **取消**（老板：「只能选择模型，不能取消，BUG」）。
   ========================================================================== */
#sub-aichat .aic-pickwrap { margin-bottom: 4px; }
#sub-aichat .aic-pickwrap.inline {
  background: #fff; border: 1px solid var(--aic-line); border-radius: 14px;
  padding: 11px; margin-bottom: 12px;
}
#sub-aichat .aic-ph { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; margin-bottom: 10px; }
#sub-aichat .aic-ph b { font-size: 14px; color: var(--aic-ink); }
#sub-aichat .aic-ph span { font-size: 11px; color: #8b93b0; }

#sub-aichat .aic-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 9px; }
@media (min-width: 620px) { #sub-aichat .aic-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (min-width: 900px) { #sub-aichat .aic-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); } }

#sub-aichat .aic-bc {
  position: relative; box-sizing: border-box; cursor: pointer; text-align: center;
  border: 1.5px solid var(--aic-line); border-radius: 14px; background: #fff; padding: 11px 9px 9px;
  transition: border-color .15s ease, box-shadow .15s ease, transform .12s ease;
}
#sub-aichat .aic-bc:active { transform: scale(.98); }
#sub-aichat .aic-bc.on { border-color: var(--aic-c1); box-shadow: 0 0 0 2px rgba(99, 102, 241, .16); background: #fbfbff; }
#sub-aichat .aic-bc-idx {
  position: absolute; left: 6px; top: 6px; min-width: 17px; height: 17px; border-radius: 9px;
  background: var(--aic-c1); color: #fff; font-size: 10.5px; line-height: 17px; text-align: center;
  padding: 0 4px; font-weight: 700;
}
#sub-aichat .aic-bc-ico { width: 38px; height: 38px; border-radius: 11px; display: block; margin: 0 auto 6px; }
#sub-aichat .aic-bc-nm {
  font-size: 12.5px; font-weight: 700; color: var(--aic-ink); line-height: 1.2;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
/* 档位按钮：高度 ~32px（接近 44px 触控底线的可点区域，视觉又不塌） */
#sub-aichat .aic-bc-tiers { display: flex; gap: 4px; margin-top: 8px; }
#sub-aichat .aic-bt {
  flex: 1 1 0; font-family: inherit; font-size: 11.5px; padding: 8px 0; border-radius: 8px;
  border: 1px solid var(--aic-line); background: #f8f9fe; color: #4b5270; cursor: pointer; line-height: 1.2;
}
#sub-aichat .aic-bt.on {
  background: linear-gradient(135deg, var(--aic-c1), var(--aic-c2));
  border-color: transparent; color: #fff; font-weight: 700;
}

/* 示例问题 */
#sub-aichat .aic-egs { margin-top: 16px; }
#sub-aichat .aic-egt { font-size: 11px; color: #9aa2bd; margin-bottom: 7px; padding-left: 2px; }
#sub-aichat .aic-egb {
  display: block; width: 100%; text-align: left; box-sizing: border-box;
  font-family: inherit; font-size: 12.5px; color: #3d4360; line-height: 1.5;
  background: #fff; border: 1px solid var(--aic-line); border-radius: 12px;
  padding: 10px 12px; margin-bottom: 7px; cursor: pointer;
}
#sub-aichat .aic-egb:active { background: var(--aic-soft); }

/* ============================================================================
   ③ 有对话时的「当前模型」条（换模型的唯一入口）
   ========================================================================== */
#sub-aichat .aic-modelbar {
  display: flex; align-items: center; gap: 8px; margin-bottom: 12px;
  background: #fff; border: 1px solid var(--aic-line); border-radius: 14px; padding: 9px 11px;
}
#sub-aichat .aic-mb-face { display: inline-flex; flex: 0 0 auto; }
#sub-aichat .aic-mb-face img {
  width: 18px; height: 18px; border-radius: 50%; border: 1.5px solid #fff;
  margin-right: -6px; background: #fff; display: block;
}
#sub-aichat .aic-mb-face img:last-child { margin-right: 0; }
#sub-aichat .aic-mb-t {
  flex: 1 1 auto; min-width: 0; font-size: 12px; color: #3d4360;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
#sub-aichat .aic-mb-btn {
  flex: 0 0 auto; font-family: inherit; font-size: 11.5px; padding: 5px 11px; border-radius: 20px;
  border: 1px solid var(--aic-line); background: #fff; color: var(--aic-c2); cursor: pointer;
}

/* ============================================================================
   ④ 一轮对话
   ========================================================================== */
#sub-aichat .aic-turn { margin-bottom: 20px; }
#sub-aichat .aic-qrow { display: flex; justify-content: flex-end; }
#sub-aichat .aic-qb {
  max-width: 84%; background: linear-gradient(135deg, var(--aic-c1), var(--aic-c2));
  color: #fff; font-size: 13px; line-height: 1.62; padding: 9px 13px;
  border-radius: 15px 15px 4px 15px; white-space: pre-wrap; word-break: break-word;
  box-shadow: 0 4px 12px rgba(67, 56, 202, .18);
}

/* 联网状态行 */
#sub-aichat .aic-netline { margin: 8px 0 6px; font-size: 11px; color: #7b83a3; }
#sub-aichat .aic-netdot {
  display: inline-block; width: 6px; height: 6px; border-radius: 50%;
  background: #34b37a; margin-right: 6px; vertical-align: 1px;
  animation: aic-pulse 1.1s ease-in-out infinite;
}
@keyframes aic-pulse { 50% { opacity: .25; } }
#sub-aichat .aic-srcbtn {
  font-family: inherit; font-size: 11px; color: #2f7d5c; background: #eefaf3;
  border: 1px solid #cdebdd; border-radius: 20px; padding: 4px 10px; cursor: pointer;
}
#sub-aichat .aic-srclist { display: flex; flex-direction: column; gap: 5px; margin-top: 7px; }
#sub-aichat .aic-srci {
  display: flex; flex-direction: column; gap: 1px; text-decoration: none;
  background: #fff; border: 1px solid var(--aic-line); border-radius: 10px; padding: 7px 10px;
}
#sub-aichat .aic-srci b { font-size: 11px; color: #2f7d5c; }
#sub-aichat .aic-srci span { font-size: 11px; color: #6b7392; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ---- 三列并排（🔴 手机也是三列同屏）----
   align-items: start（**各自高度**，与同行一致）：某列流式变长时**不会**把另外两列一起撑高，
   视觉跳动明显更小（stretch 会让三列同时长高 ⇒ 页面"乱跑"）。 */
#sub-aichat .aic-cols { display: grid; gap: 6px; margin-top: 9px; align-items: start; }
#sub-aichat .aic-cols.n2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
#sub-aichat .aic-cols.n3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }

#sub-aichat .aic-col {
  background: #fff; border: 1px solid var(--aic-line); border-radius: 13px;
  overflow: hidden; display: flex; flex-direction: column; min-width: 0;
}
#sub-aichat .aic-ch {
  display: flex; align-items: center; gap: 4px; padding: 7px 6px 6px;
  border-bottom: 1px solid #f0f1f8; background: #fbfbff; min-width: 0;
}
#sub-aichat .aic-ch img { width: 15px; height: 15px; border-radius: 4px; flex: 0 0 auto; }
/* 手机三列时每列只有 ~99px，品牌名压到 10px 才放得下 "DeepSeek" */
#sub-aichat .aic-ch b {
  font-size: 10px; color: var(--aic-ink); font-weight: 700;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap; min-width: 0;
}
#sub-aichat .aic-ch i { font-style: normal; font-size: 9.5px; color: #9aa2bd; flex: 0 0 auto; }
#sub-aichat .aic-ch-e { font-style: normal; font-size: 9.5px; color: #d9534f; flex: 0 0 auto; }
#sub-aichat .aic-zoom {
  margin-left: auto; flex: 0 0 auto; width: 16px; height: 16px;
  display: inline-flex; align-items: center; justify-content: center;
  border: 0; background: transparent; padding: 0;
  color: #8b93b0; cursor: pointer; font-family: inherit;
}
#sub-aichat .aic-cb {
  padding: 9px 8px; font-size: 11.5px; line-height: 1.68; color: #2b2f45;
  white-space: pre-wrap; word-break: break-word; flex: 1 1 auto;
}
#sub-aichat .aic-cb b { font-weight: 700; color: var(--aic-ink); }
#sub-aichat .aic-cb a { color: var(--aic-c2); text-decoration: underline; word-break: break-all; }
#sub-aichat .aic-cursor::after { content: '▍'; color: var(--aic-c1); animation: aic-blink 1s steps(2) infinite; }
@keyframes aic-blink { 50% { opacity: 0; } }

#sub-aichat .aic-cf { padding: 0 8px 8px; }
#sub-aichat .aic-dc { font-size: 9px; color: #b3b9cd; margin-top: 5px; line-height: 1.4; }

#sub-aichat .aic-backrow { margin: 8px 0 6px; }
#sub-aichat .aic-backbtn {
  font-family: inherit; font-size: 11.5px; padding: 5px 12px; border-radius: 20px;
  border: 1px solid var(--aic-line); background: #fff; color: var(--aic-c2); cursor: pointer;
}

/* 得分胶囊 */
#sub-aichat .aic-sc { margin-top: 8px; }
#sub-aichat .aic-sc-pill {
  display: inline-flex; align-items: center; gap: 3px;
  font-size: 10.5px; font-family: inherit; padding: 3px 8px; border-radius: 20px;
  background: var(--aic-soft); color: var(--aic-c2);
  border: 1px solid rgba(99, 102, 241, .22); cursor: pointer; line-height: 1.3;
}
#sub-aichat .aic-sc-pill:active { transform: scale(.97); }
#sub-aichat .aic-sc-pill b { font-size: 12.5px; font-weight: 800; }
#sub-aichat .aic-sc-ar { font-size: 9px; opacity: .65; }
#sub-aichat .aic-sc-why {
  margin-top: 5px; font-size: 10.5px; line-height: 1.6; color: #6b7392;
  background: #f7f8ff; border: 1px solid var(--aic-line); border-radius: 9px; padding: 7px 8px;
}
#sub-aichat .aic-sc-wait { font-size: 10px; color: #a8afc7; }

/* 反馈行 */
#sub-aichat .aic-fb { display: flex; align-items: center; gap: 4px; margin-top: 7px; flex-wrap: wrap; }
#sub-aichat .aic-fbb {
  font-family: inherit; font-size: 10.5px; line-height: 1; padding: 5px 7px;
  border-radius: 8px; border: 1px solid var(--aic-line); background: #fff;
  color: #6b7392; cursor: pointer;
}
#sub-aichat .aic-fbb.vote { padding: 4px 6px; font-size: 11.5px; }
#sub-aichat .aic-fbb.on { border-color: var(--aic-c1); color: var(--aic-c2); background: var(--aic-soft); font-weight: 700; }

/* ============================================================================
   ⑤ 底部输入区（sticky 钉底）
   ========================================================================== */
#sub-aichat .aic-dock {
  position: sticky; bottom: 0; z-index: 6;
  margin: 0 -16px; padding: 8px 16px 12px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0) 0%, #fff 26%);
}
#sub-aichat .aic-qk-row { display: flex; align-items: center; gap: 7px; margin-bottom: 7px; }
#sub-aichat .aic-qk {
  display: inline-flex; align-items: center; gap: 4px; flex: 0 0 auto;
  font-family: inherit; font-size: 12px; line-height: 1; padding: 7px 12px;
  border-radius: 20px; border: 1px solid var(--aic-line); background: #fff;
  color: #6b7392; cursor: pointer; transition: all .15s ease;
}
#sub-aichat .aic-qk-ico { font-size: 12px; }
#sub-aichat .aic-qk.on {
  background: linear-gradient(135deg, #eefaf3, #e3f6ec); border-color: #b9e6d1;
  color: #1f7a55; font-weight: 700;
}
#sub-aichat .aic-qk-tip {
  font-size: 10.5px; color: #a8afc7; flex: 1 1 auto; min-width: 0;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
#sub-aichat .aic-qk-tip.on { color: var(--aic-c2); }

#sub-aichat .aic-inbox {
  background: var(--aic-gray); border: 1px solid #e6e8f0; border-radius: 18px;
  padding: 9px 10px 8px; box-shadow: 0 2px 10px rgba(30, 27, 75, .05);
}
#sub-aichat .aic-inp {
  width: 100%; box-sizing: border-box; border: 0; background: transparent;
  padding: 2px 2px 4px; font-family: inherit; font-size: 13.5px; line-height: 1.6;
  color: #2b2f45; resize: none; min-height: 26px; max-height: 116px; outline: none;
}
#sub-aichat .aic-inp::placeholder { color: #a8afc7; }
#sub-aichat .aic-inbar { display: flex; align-items: center; gap: 8px; }
/* 🔴 纯展示条（不可点）—— 老板：「这个地方只显示选择了哪几个模型就行」 */
#sub-aichat .aic-show { display: flex; align-items: center; gap: 7px; flex: 1 1 auto; min-width: 0; }
#sub-aichat .aic-show-face { display: inline-flex; flex: 0 0 auto; }
#sub-aichat .aic-show-face img {
  width: 17px; height: 17px; border-radius: 50%; border: 1.5px solid #fff;
  margin-right: -6px; background: #fff; display: block;
}
#sub-aichat .aic-show-face img:last-child { margin-right: 0; }
#sub-aichat .aic-show-t {
  font-size: 12px; color: #3d4360; min-width: 0;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
#sub-aichat .aic-show-t.mute { color: #a8afc7; }
#sub-aichat .aic-sendbtn {
  margin-left: auto; flex: 0 0 auto; width: 36px; height: 36px; border-radius: 50%;
  border: 0; cursor: pointer; color: #fff; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--aic-c1), var(--aic-c2));
  box-shadow: 0 5px 14px rgba(67, 56, 202, .26);
}
#sub-aichat .aic-sendbtn.busy { background: #c9cde0; box-shadow: none; }

/* ============================================================================
   ⑥ 首页大卡（#view-aichat 永不激活，仅为价目表注册保留 —— 样式留着别删）
   ========================================================================== */
.hero-aichat {
  background: linear-gradient(135deg, #7c7ffb 0%, #4b45d6 52%, #221c5e 100%);
  box-shadow: 0 10px 26px rgba(43, 36, 112, 0.28);
}
.combo-card.boss-entry.boss-entry-aic { background: linear-gradient(135deg, #fbfbff 0%, #eef0fe 100%); }
@media (hover: hover) { .combo-card.boss-entry.boss-entry-aic:hover { box-shadow: 0 10px 26px rgba(67, 56, 202, 0.18); } }
.combo-card.boss-entry.boss-entry-aic .boss-entry-glow {
  background: radial-gradient(circle, rgba(99, 102, 241, .20) 0%, rgba(99, 102, 241, 0) 70%);
}
.combo-card.boss-entry.boss-entry-aic .boss-entry-ico {
  background: linear-gradient(135deg, #ffffff 0%, #dcdffb 100%);
  border: 1px solid #c9cdf7; box-shadow: 0 6px 14px rgba(67, 56, 202, 0.14);
}
.combo-card.boss-entry.boss-entry-aic .boss-entry-ico img { width: 40px; height: 40px; display: block; }
.combo-card.boss-entry.boss-entry-aic .boss-entry-tag { color: #3b3fa8; background: #eff0ff; }
.combo-card.boss-entry.boss-entry-aic .boss-entry-flow { color: #3b3fa8; }
.combo-card.boss-entry.boss-entry-aic .boss-entry-flow span { background: #f6f7ff; border-color: #dcdffb; }
.combo-card.boss-entry.boss-entry-aic .boss-entry-flow i { color: #b6bcec; }
.combo-card.boss-entry.boss-entry-aic .aic-card-logos { display: flex; gap: 5px; margin-top: 9px; flex-wrap: wrap; }
.combo-card.boss-entry.boss-entry-aic .aic-card-logos img {
  width: 22px; height: 22px; border-radius: 7px; box-shadow: 0 2px 5px rgba(43, 36, 112, .14);
}