ai{
  --bg:#030813;
  --bg2:#07101d;
  --panel:rgba(10,22,38,.82);
  --panel2:rgba(14,31,51,.88);
  --text:#eef7ff;
  --soft:#a9bfd3;
  --faint:#71879b;
  --cyan:#70e4ff;
  --blue:#2bc8f0;
  --purple:#b99cff;
  --gold:#ffd780;
  --green:#69e7ab;
  --red:#ff7e9b;
  --line:rgba(151,213,255,.15);
  --line2:rgba(112,228,255,.38);
  position:relative;
  display:block;
  box-sizing:border-box;
  width:100%;
  max-width:980px;
  margin:0 auto;
  overflow:hidden;
  color:var(--text);
  border:1px solid var(--line);
  border-radius:18px;
  background:
    radial-gradient(circle at 8% 3%,rgba(43,200,240,.15),transparent 28%),
    radial-gradient(circle at 92% 12%,rgba(185,156,255,.13),transparent 25%),
    radial-gradient(circle at 50% 100%,rgba(105,231,171,.06),transparent 32%),
    linear-gradient(145deg,var(--bg),var(--bg2) 48%,#0b1828);
  box-shadow:
    0 22px 70px rgba(0,0,0,.4),
    inset 0 1px rgba(255,255,255,.04);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:15px;
  line-height:1.78;
  isolation:isolate;
}

ai::before{
  content:"";
  position:absolute;
  z-index:-1;
  inset:0;
  pointer-events:none;
  opacity:.22;
  background-image:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='88' height='88' viewBox='0 0 88 88'%3E%3Cg fill='none' stroke='%2370e4ff' stroke-opacity='.18'%3E%3Cpath d='M44 3 49 39 85 44 49 49 44 85 39 49 3 44 39 39Z'/%3E%3Ccircle cx='44' cy='44' r='27' stroke-dasharray='2 8'/%3E%3C/g%3E%3C/svg%3E");
  background-size:150px 150px;
  mask-image:linear-gradient(to bottom,#000,transparent 58%);
}

ai::after{
  content:"";
  position:absolute;
  z-index:6;
  top:0;
  left:-45%;
  width:35%;
  height:2px;
  pointer-events:none;
  background:linear-gradient(90deg,transparent,var(--cyan),#fff,transparent);
  box-shadow:0 0 14px var(--cyan);
  animation:aiTopScan 7s linear infinite;
}

ai hd{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  min-height:52px;
  padding:9px 15px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
  background:
    linear-gradient(90deg,rgba(112,228,255,.08),transparent 45%),
    rgba(4,12,22,.72);
  box-shadow:0 8px 28px rgba(0,0,0,.16);
}

ai hd::before{
  content:"";
  position:absolute;
  left:0;
  top:11px;
  bottom:11px;
  width:3px;
  border-radius:0 4px 4px 0;
  background:linear-gradient(var(--cyan),var(--purple));
  box-shadow:0 0 14px var(--cyan);
}

ai hd b{
  color:var(--text);
  font-size:15px;
  font-weight:900;
  letter-spacing:.08em;
  text-shadow:0 0 18px rgba(112,228,255,.3);
}

ai hd i{
  color:var(--soft);
  font-size:12px;
  font-style:normal;
  text-align:right;
  letter-spacing:.03em;
}

ai>main{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(245px,310px);
  gap:16px;
  align-items:start;
  padding:16px;
}

ai>main>article{
  position:relative;
  min-width:0;
  padding:4px 3px;
  color:#dceaf5;
}

ai>main>article::before{
  content:"NARRATIVE STREAM";
  display:block;
  margin-bottom:13px;
  color:var(--cyan);
  font-size:10px;
  font-weight:800;
  line-height:1;
  letter-spacing:.2em;
  opacity:.75;
}

ai>main>article p{
  margin:0 0 13px;
  text-align:justify;
  overflow-wrap:anywhere;
}

ai>main>article p:first-of-type::first-letter{
  float:left;
  margin:7px 7px 0 0;
  color:var(--cyan);
  font-size:34px;
  font-weight:900;
  line-height:.8;
  text-shadow:0 0 18px rgba(112,228,255,.4);
}

ai q{
  position:relative;
  display:block;
  margin:17px 0 7px;
  padding:13px 14px 13px 17px;
  color:var(--text);
  border-left:2px solid var(--purple);
  border-radius:0 11px 11px 0;
  background:
    linear-gradient(90deg,rgba(185,156,255,.12),rgba(112,228,255,.025));
  box-shadow:inset 12px 0 26px rgba(185,156,255,.035);
  font-style:normal;
}

ai q::before{
  content:"SYSTEM";
  display:block;
  margin-bottom:4px;
  color:var(--purple);
  font-size:9px;
  font-weight:900;
  line-height:1;
  letter-spacing:.2em;
}

ai q::after{
  content:"";
}

ai cp{
  --a:var(--cyan);
  --t:var(--cyan);
  position:relative;
  display:flex;
  box-sizing:border-box;
  flex-direction:column;
  width:100%;
  max-width:310px;
  min-width:0;
  justify-self:center;
  padding:10px;
  overflow:hidden;
  color:#edfaff;
  border:1px solid var(--a);
  border-radius:20px;
  background:
    radial-gradient(circle at 50% 28%,rgba(112,228,255,.16),transparent 31%),
    linear-gradient(150deg,#12263c,#07111f 60%,#030813);
  box-shadow:
    0 24px 55px rgba(0,0,0,.46),
    0 0 30px color-mix(in srgb,var(--a) 19%,transparent),
    inset 0 0 34px rgba(112,228,255,.025);
  transform:perspective(850px) rotateY(-2deg) rotateX(1deg);
  transition:
    transform .35s cubic-bezier(.2,.8,.2,1),
    box-shadow .35s ease,
    border-color .35s ease;
}

ai cp:hover{
  transform:perspective(850px) rotateY(0) rotateX(0) translateY(-5px);
  box-shadow:
    0 31px 65px rgba(0,0,0,.52),
    0 0 44px color-mix(in srgb,var(--a) 29%,transparent),
    inset 0 0 38px color-mix(in srgb,var(--a) 6%,transparent);
}

ai cp::before{
  content:"";
  position:absolute;
  z-index:0;
  inset:6px;
  pointer-events:none;
  border:1px solid color-mix(in srgb,var(--a) 38%,transparent);
  border-radius:15px;
  background:
    linear-gradient(135deg,var(--a),transparent 11%) 0 0/34px 1px no-repeat,
    linear-gradient(135deg,var(--a),transparent 11%) 0 0/1px 34px no-repeat,
    linear-gradient(315deg,var(--a),transparent 11%) 100% 100%/34px 1px no-repeat,
    linear-gradient(315deg,var(--a),transparent 11%) 100% 100%/1px 34px no-repeat;
  opacity:.72;
}

ai cp::after{
  content:"";
  position:absolute;
  z-index:1;
  top:-60%;
  left:-70%;
  width:45%;
  height:220%;
  pointer-events:none;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.13),transparent);
  transform:rotate(21deg);
  animation:aiCardShine 6.5s ease-in-out infinite;
}

ai cp[r="普通"]{--a:#9db2c4}
ai cp[r="精良"]{--a:#69e7ab}
ai cp[r="稀有"]{--a:#70e4ff}
ai cp[r="史诗"]{--a:#b99cff}
ai cp[r="传说"]{--a:#ffd780}
ai cp[r="概念级"]{
  --a:#f5d8ff;
  border-color:#d9bdff;
  background:
    radial-gradient(circle at 18% 14%,rgba(112,228,255,.2),transparent 27%),
    radial-gradient(circle at 83% 32%,rgba(255,126,155,.16),transparent 25%),
    radial-gradient(circle at 48% 78%,rgba(255,215,128,.11),transparent 30%),
    linear-gradient(145deg,#19132e,#071523 55%,#130b20);
  animation:aiConceptAura 4s ease-in-out infinite;
}

ai cp[tp="物资卡"]{--t:#70e4ff}
ai cp[tp="建筑卡"]{--t:#ffd780}
ai cp[tp="召唤卡"]{--t:#b99cff}
ai cp[tp="技能卡"]{--t:#69e7ab}
ai cp[tp="自定义卡"]{--t:#ff8fb3}

ai cp>em,
ai cp>top,
ai cp>pic,
ai cp>h2,
ai cp>tx,
ai cp>rule,
ai cp>fit,
ai cp>ft{
  position:relative;
  z-index:2;
}

ai cp>em{
  display:block;
  padding:3px 7px 8px;
  color:var(--a);
  font-size:9px;
  font-style:normal;
  font-weight:900;
  line-height:1;
  letter-spacing:.18em;
  text-align:center;
  text-transform:uppercase;
  text-shadow:0 0 11px color-mix(in srgb,var(--a) 55%,transparent);
}

ai cp>top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:8px;
  padding:8px 10px;
  border-top:1px solid color-mix(in srgb,var(--a) 22%,transparent);
  border-bottom:1px solid color-mix(in srgb,var(--a) 22%,transparent);
  background:linear-gradient(90deg,color-mix(in srgb,var(--t) 10%,transparent),transparent);
}

ai cp>top b{
  color:var(--t);
  font-size:11px;
  font-weight:900;
  letter-spacing:.12em;
}

ai cp>top b::before{
  content:"◇";
  margin-right:5px;
  text-shadow:0 0 10px currentColor;
}

ai cp[tp="物资卡"]>top b::before{content:"▣"}
ai cp[tp="建筑卡"]>top b::before{content:"⌂"}
ai cp[tp="召唤卡"]>top b::before{content:"✦"}
ai cp[tp="技能卡"]>top b::before{content:"⚡"}
ai cp[tp="自定义卡"]>top b::before{content:"∞"}

ai cp>top i{
  color:var(--a);
  font-size:10px;
  font-style:normal;
  font-weight:800;
  letter-spacing:.1em;
}

ai pic{
  position:relative;
  display:block;
  aspect-ratio:1.22;
  margin:10px 0 9px;
  overflow:hidden;
  border:1px solid color-mix(in srgb,var(--a) 44%,transparent);
  border-radius:11px;
  background:
    radial-gradient(circle,var(--a) 0 1px,transparent 2px) 0 0/18px 18px,
    radial-gradient(circle at center,color-mix(in srgb,var(--a) 20%,transparent),transparent 62%),
    #071321;
  box-shadow:
    inset 0 0 28px rgba(0,0,0,.45),
    0 0 20px color-mix(in srgb,var(--a) 10%,transparent);
}

ai pic::before{
  content:"";
  position:absolute;
  z-index:2;
  inset:0;
  pointer-events:none;
  border-radius:inherit;
  background:
    linear-gradient(135deg,rgba(255,255,255,.11),transparent 24%),
    linear-gradient(to bottom,transparent 54%,rgba(2,7,14,.86));
}

ai pic::after{
  content:"IMAGE MANIFEST";
  position:absolute;
  z-index:3;
  top:8px;
  right:8px;
  padding:3px 6px;
  color:#dff9ff;
  border:1px solid rgba(255,255,255,.16);
  border-radius:5px;
  background:rgba(2,8,15,.58);
  backdrop-filter:blur(6px);
  font-size:7px;
  font-weight:800;
  line-height:1;
  letter-spacing:.13em;
}

ai pic img{
  display:block;
  width:100%;
  height:100%;
  object-fit:cover;
  object-position:center;
  filter:saturate(1.08) contrast(1.04);
  transition:transform .65s cubic-bezier(.2,.8,.2,1),filter .4s ease;
}

ai cp:hover pic img{
  transform:scale(1.045);
  filter:saturate(1.18) contrast(1.06) brightness(1.04);
}

ai pic u{
  position:absolute;
  z-index:4;
  right:9px;
  bottom:7px;
  left:9px;
  overflow:hidden;
  color:#c4d5e3;
  font-size:9px;
  line-height:1.35;
  text-align:center;
  text-decoration:none;
  text-overflow:ellipsis;
  white-space:nowrap;
  text-shadow:0 1px 5px #000;
}

ai cp>h2{
  margin:4px 7px 7px;
  color:#f4fbff;
  font-size:21px;
  font-weight:900;
  line-height:1.25;
  letter-spacing:.015em;
  text-align:center;
  overflow-wrap:anywhere;
  text-shadow:
    0 0 16px color-mix(in srgb,var(--a) 25%,transparent),
    0 2px 4px rgba(0,0,0,.45);
}

ai cp>h2::after{
  content:"";
  display:block;
  width:44px;
  height:1px;
  margin:7px auto 0;
  background:linear-gradient(90deg,transparent,var(--a),transparent);
  box-shadow:0 0 8px var(--a);
}

ai tx{
  display:block;
  min-height:65px;
  padding:4px 8px 10px;
  color:#b9ccdc;
  font-size:12px;
  line-height:1.65;
  text-align:center;
  overflow-wrap:anywhere;
}

ai rule{
  display:grid;
  grid-template-columns:auto minmax(0,1fr);
  gap:2px 8px;
  margin:0 6px;
  padding:8px 9px;
  border-top:1px solid color-mix(in srgb,var(--a) 23%,transparent);
  border-bottom:1px solid color-mix(in srgb,var(--a) 23%,transparent);
  background:rgba(255,255,255,.018);
}

ai rule i{
  color:var(--faint);
  font-size:9px;
  font-style:normal;
  line-height:1.55;
  letter-spacing:.08em;
}

ai rule b{
  min-width:0;
  color:#dce9f2;
  font-size:10px;
  font-weight:600;
  line-height:1.55;
  text-align:right;
  overflow-wrap:anywhere;
}

ai fit{
  display:block;
  margin:8px 6px 0;
  padding:7px 8px;
  color:#849bad;
  border-left:2px solid var(--t);
  border-radius:0 7px 7px 0;
  background:color-mix(in srgb,var(--t) 5%,transparent);
  font-size:9px;
  line-height:1.55;
  overflow-wrap:anywhere;
}

ai fit b{
  display:block;
  margin-bottom:2px;
  color:var(--t);
  font-size:8px;
  letter-spacing:.12em;
}

ai ft{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:7px;
  margin:9px 6px 2px;
  padding-top:7px;
  color:#698094;
  border-top:1px solid rgba(255,255,255,.06);
  font-size:8px;
  line-height:1.2;
  letter-spacing:.08em;
}

ai ft i{
  font-style:normal;
}

ai ft b{
  color:var(--a);
  font-size:8px;
  text-align:right;
  text-shadow:0 0 9px color-mix(in srgb,var(--a) 50%,transparent);
}

ai>details{
  position:relative;
  margin:0 16px 16px;
  overflow:hidden;
  border:1px solid var(--line);
  border-radius:15px;
  background:
    linear-gradient(145deg,rgba(112,228,255,.035),transparent 28%),
    rgba(7,17,30,.78);
  box-shadow:
    0 13px 35px rgba(0,0,0,.23),
    inset 0 1px rgba(255,255,255,.025);
}

ai>details>summary{
  position:relative;
  display:flex;
  align-items:center;
  min-height:47px;
  padding:9px 42px 9px 14px;
  color:var(--text);
  background:
    linear-gradient(90deg,rgba(112,228,255,.1),rgba(185,156,255,.04),transparent);
  font-size:14px;
  font-weight:900;
  letter-spacing:.08em;
  cursor:pointer;
  list-style:none;
  user-select:none;
  transition:background .25s ease,color .25s ease;
}

ai>details>summary::-webkit-details-marker{
  display:none;
}

ai>details>summary::before{
  content:"";
  width:3px;
  height:22px;
  margin-right:10px;
  border-radius:5px;
  background:linear-gradient(var(--cyan),var(--purple));
  box-shadow:0 0 12px var(--cyan);
}

ai>details>summary::after{
  content:"＋";
  position:absolute;
  right:15px;
  top:50%;
  color:var(--cyan);
  font-size:20px;
  font-weight:400;
  transform:translateY(-50%);
  transition:transform .3s ease;
}

ai>details[open]>summary::after{
  transform:translateY(-50%) rotate(45deg);
}

ai>details>summary:hover{
  color:var(--cyan);
  background:
    linear-gradient(90deg,rgba(112,228,255,.15),rgba(185,156,255,.065),transparent);
}

ai section[t]{
  position:relative;
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:5px 12px;
  margin:0 12px;
  padding:31px 2px 11px;
  border-top:1px solid var(--line);
}

ai section[t]:first-of-type{
  border-top:0;
}

ai section[t]::before{
  content:attr(t);
  position:absolute;
  top:9px;
  left:2px;
  color:var(--cyan);
  font-size:10px;
  font-weight:900;
  line-height:1;
  letter-spacing:.16em;
  text-transform:uppercase;
}

ai section[t]::after{
  content:"";
  position:absolute;
  top:13px;
  right:2px;
  left:72px;
  height:1px;
  background:linear-gradient(90deg,rgba(112,228,255,.3),transparent);
}

ai section[t="持有者"]::before{color:var(--gold)}
ai section[t="核心能力"]::before{color:var(--purple)}
ai section[t="当前制卡"]::before{color:var(--cyan)}
ai section[t="卡库"]::before{color:#86d7ff}
ai section[t="资源"]::before{color:var(--green)}
ai section[t="世界"]::before{color:#9eb4ff}
ai section[t="关系"]::before{color:#ff9fc2}
ai section[t="任务"]::before{color:var(--gold)}
ai section[t="记录"]::before{color:#a8bdd0}
ai section[t="行动"]::before{color:var(--cyan)}

ai f{
  display:inline-block;
  grid-column:1/-1;
  width:max-content;
  max-width:100%;
  margin-bottom:3px;
  color:var(--text);
  font-size:19px;
  font-weight:900;
  line-height:1.3;
  letter-spacing:.04em;
  overflow-wrap:anywhere;
  text-shadow:0 0 17px rgba(112,228,255,.25);
}

ai f::before{
  content:"✦";
  margin-right:7px;
  color:var(--gold);
  font-size:13px;
  text-shadow:0 0 10px var(--gold);
}

ai d{
  position:relative;
  display:block;
  min-width:0;
  padding:5px 7px 5px 15px;
  color:var(--soft);
  border-radius:6px;
  font-size:12px;
  line-height:1.55;
  overflow-wrap:anywhere;
  transition:
    color .2s ease,
    background .2s ease,
    transform .2s ease;
}

ai d::before{
  content:"";
  position:absolute;
  left:5px;
  top:12px;
  width:3px;
  height:3px;
  border-radius:50%;
  background:var(--cyan);
  box-shadow:0 0 6px var(--cyan);
  opacity:.68;
}

ai d:hover{
  color:#e4f4ff;
  background:rgba(112,228,255,.055);
  transform:translateX(2px);
}

ai section[t="行动"] d{
  padding:8px 9px 8px 28px;
  color:#c7dae8;
  border:1px solid rgba(112,228,255,.09);
  border-radius:8px;
  background:linear-gradient(90deg,rgba(112,228,255,.045),transparent);
  cursor:pointer;
}

ai section[t="行动"] d::before{
  content:"›";
  left:10px;
  top:50%;
  width:auto;
  height:auto;
  color:var(--cyan);
  background:none;
  box-shadow:none;
  font-size:19px;
  font-weight:700;
  transform:translateY(-52%);
  opacity:1;
}

ai section[t="行动"] d:hover{
  color:#fff;
  border-color:var(--line2);
  background:linear-gradient(90deg,rgba(112,228,255,.12),rgba(185,156,255,.035));
  box-shadow:inset 3px 0 var(--cyan),0 0 16px rgba(112,228,255,.05);
  transform:translateX(3px);
}

ai section[t="当前制卡"] d:nth-of-type(2){
  color:var(--gold);
}

ai section[t="任务"] d:first-of-type{
  color:#f0dba7;
}

ai section[t="记录"] d{
  color:#91a6b8;
  font-style:italic;
}

@keyframes aiTopScan{
  0%{left:-45%;opacity:0}
  8%{opacity:1}
  55%{opacity:.85}
  70%,100%{left:115%;opacity:0}
}

@keyframes aiCardShine{
  0%,54%{left:-70%;opacity:0}
  60%{opacity:.6}
  78%{left:135%;opacity:0}
  100%{left:135%;opacity:0}
}

@keyframes aiConceptAura{
  0%,100%{
    box-shadow:
      0 24px 55px rgba(0,0,0,.46),
      0 0 24px rgba(112,228,255,.2),
      0 0 42px rgba(185,156,255,.09)
  }
  50%{
    box-shadow:
      0 27px 60px rgba(0,0,0,.5),
      0 0 35px rgba(185,156,255,.28),
      0 0 58px rgba(255,215,128,.12)
  }
}

@media(max-width:760px){
  ai{
    border-radius:15px;
    font-size:14px;
  }
  ai>main{
    grid-template-columns:1fr;
    padding:13px;
  }
  ai cp{
    width:min(100%,330px);
    max-width:330px;
    margin-top:4px;
    transform:none;
  }
  ai cp:hover{
    transform:translateY(-3px);
  }
  ai>details{
    margin:0 13px 13px;
  }
  ai section[t]{
    grid-template-columns:1fr;
  }
  ai f{
    grid-column:auto;
  }
}

@media(max-width:480px){
  ai{
    border-radius:12px;
  }
  ai hd{
    align-items:flex-start;
    flex-direction:column;
    gap:2px;
    padding:10px 12px;
  }
  ai hd i{
    text-align:left;
  }
  ai>main{
    gap:10px;
    padding:11px;
  }
  ai>main>article p{
    text-align:left;
  }
  ai cp{
    padding:8px;
    border-radius:17px;
  }
  ai pic{
    aspect-ratio:1.3;
  }
  ai cp>h2{
    font-size:19px;
  }
  ai tx{
    min-height:0;
  }
  ai>details{
    margin:0 10px 10px;
    border-radius:12px;
  }
  ai>details>summary{
    min-height:44px;
    padding-left:11px;
  }
  ai section[t]{
    margin:0 9px;
    padding-top:30px;
  }
  ai d{
    font-size:11.5px;
  }
}

@media(prefers-reduced-motion:reduce){
  ai::after,
  ai cp,
  ai cp::after{
    animation:none;
  }
  ai cp,
  ai pic img,
  ai d,
  ai>details>summary::after{
    transition:none;
  }
}

==================
   低动效偏好：保留 SMIL 动效，但降低视觉幅度
   ========================================================= */

@media (prefers-reduced-motion: reduce) {
    .bg-gray-100\/90.relative.inline-block::before {
        opacity: 0.13 !important;
        background-size: 460px 230px !important;
    }

    .bg-gray-100\/90.relative.inline-block::after {
        opacity: 0.08 !important;
    }

    .bg-gray-100\/90.relative.inline-block,
    .MuiButtonBase-root.MuiButton-root,
    textarea,
    .MuiInputBase-root,
    .MuiOutlinedInput-root,
    [contenteditable="true"][role="textbox"] {
        transition-duration: 0.45s !important;
    }

    .MuiButtonBase-root.MuiButton-root:hover {
        transform: none !important;
    }
}

/* =========================================================
   统一聊天框：深海科幻面板
   ========================================================= */

/* 变量定义：继承深空、霓虹冰晶与概念卡色调 */
:root {
  --winter-pure-white: #eef7ff;
  --winter-light-gray: #dceaf5;
  --winter-subtle-gray: #a9bfd3;
  --winter-accent-gray: #71879b;
  --winter-deep-bg: #030813;
  --winter-deep-bg-2: #07101d;
  --winter-panel: rgba(10, 22, 38, 0.86);
  --winter-panel-hover: rgba(14, 31, 51, 0.92);
  --winter-cyan: #70e4ff;
  --winter-blue: #2bc8f0;
  --winter-purple: #b99cff;
  --winter-gold: #ffd780;
  --winter-green: #69e7ab;
  --winter-red: #ff7e9b;
  --winter-line: rgba(151, 213, 255, 0.15);
  --winter-line-bright: rgba(112, 228, 255, 0.38);
  --text-color: #eef7ff;
  --placeholder-color: rgba(169, 191, 211, 0.48);
}

/* 按钮与输入框共有基础样式 */
.btn, button, input, textarea, .input-field {
  box-sizing: border-box;
  border-radius: 12px;
  padding: 12px 20px;
  color: var(--text-color);
  border: 1px solid var(--winter-line);
  background:
    radial-gradient(circle at 8% 0%, rgba(43, 200, 240, 0.14), transparent 38%),
    radial-gradient(circle at 92% 100%, rgba(185, 156, 255, 0.11), transparent 40%),
    linear-gradient(145deg, var(--winter-panel), rgba(7, 16, 29, 0.94));
  box-shadow:
    0 8px 24px rgba(0, 0, 0, 0.28),
    inset 0 1px rgba(255, 255, 255, 0.045),
    inset 0 0 24px rgba(112, 228, 255, 0.025);
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-weight: 600;
  line-height: 1.55;
  outline: none;
  position: relative;
  overflow: hidden;
  isolation: isolate;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition:
    color 0.3s ease,
    border-color 0.3s ease,
    background 0.3s ease,
    box-shadow 0.35s ease,
    transform 0.35s cubic-bezier(0.2, 0.8, 0.2, 1);
}

/* 悬停/聚焦状态：霓虹冰光外溢 */
.btn:hover, button:hover, input:hover, textarea:hover, .input-field:hover,
.btn:focus-visible, button:focus-visible, input:focus, textarea:focus, .input-field:focus {
  color: #ffffff;
  border-color: var(--winter-line-bright);
  background:
    radial-gradient(circle at 12% 0%, rgba(112, 228, 255, 0.19), transparent 42%),
    radial-gradient(circle at 88% 100%, rgba(185, 156, 255, 0.15), transparent 42%),
    linear-gradient(145deg, var(--winter-panel-hover), rgba(7, 17, 31, 0.97));
  box-shadow:
    0 13px 34px rgba(0, 0, 0, 0.38),
    0 0 24px rgba(112, 228, 255, 0.14),
    0 0 42px rgba(185, 156, 255, 0.06),
    inset 0 1px rgba(255, 255, 255, 0.07),
    inset 3px 0 var(--winter-cyan);
  transform: translateY(-2px);
}

/* 扫光特效定义 */
.btn::before, button::before, input::before, textarea::before, .input-field::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: -40%;
  left: -130%;
  width: 58%;
  height: 180%;
  pointer-events: none;
  opacity: 0;
  background:
    linear-gradient(
      90deg,
      transparent,
      rgba(112, 228, 255, 0.04),
      rgba(255, 255, 255, 0.2),
      rgba(185, 156, 255, 0.06),
      transparent
    );
  filter: blur(1px);
  transform: rotate(18deg);
  transition:
    left 0.75s cubic-bezier(0.2, 0.8, 0.2, 1),
    opacity 0.25s ease;
}

/* 触发扫光效果 */
.btn:hover::before, button:hover::before,
.btn:focus-visible::before, button:focus-visible::before,
input:focus::before, textarea:focus::before, .input-field:focus::before {
  left: 145%;
  opacity: 1;
}

/* 点击特效：冰晶能量收束 */
.btn:active, button:active, input:active, textarea:active, .input-field:active {
  border-color: rgba(185, 156, 255, 0.48);
  background:
    radial-gradient(circle at center, rgba(185, 156, 255, 0.13), transparent 62%),
    linear-gradient(145deg, #101d31, #050b15);
  box-shadow:
    inset 0 4px 12px rgba(0, 0, 0, 0.48),
    inset 0 0 24px rgba(112, 228, 255, 0.055),
    0 0 16px rgba(185, 156, 255, 0.13);
  transform: translateY(1px) scale(0.99);
}

/* 输入框特有优化 */
input, textarea, .input-field {
  cursor: text;
  caret-color: var(--winter-cyan);
  color-scheme: dark;
}

/* 占位符颜色调整 */
::placeholder {
  color: var(--placeholder-color);
  opacity: 1;
}

/* --- 差异化处理：按钮 --- */
.btn, button {
  overflow: hidden;
  cursor: pointer;
  color: var(--winter-pure-white);
  border-color: rgba(112, 228, 255, 0.25);
  background:
    linear-gradient(90deg, rgba(112, 228, 255, 0.09), rgba(185, 156, 255, 0.035)),
    linear-gradient(145deg, rgba(14, 31, 51, 0.94), rgba(4, 12, 22, 0.98));
  text-shadow: 0 0 14px rgba(112, 228, 255, 0.22);
  letter-spacing: 0.04em;
}

.btn:hover, button:hover,
.btn:focus-visible, button:focus-visible {
  border-color: var(--winter-cyan);
  background:
    linear-gradient(90deg, rgba(112, 228, 255, 0.15), rgba(185, 156, 255, 0.07)),
    linear-gradient(145deg, rgba(18, 38, 60, 0.98), rgba(5, 13, 24, 0.98));
  box-shadow:
    0 15px 36px rgba(0, 0, 0, 0.42),
    0 0 28px rgba(112, 228, 255, 0.2),
    0 0 48px rgba(185, 156, 255, 0.08),
    inset 0 1px rgba(255, 255, 255, 0.08);
  text-shadow:
    0 0 12px rgba(112, 228, 255, 0.55),
    0 0 24px rgba(185, 156, 255, 0.18);
}

/* --- 差异化处理：输入 / 输出 / 编辑框 --- */
input, textarea, .input-field, .output-field, .output-box {
  box-sizing: border-box;
  color: var(--winter-light-gray);
  border: 1px solid var(--winter-line);
  border-radius: 12px;
  background:
    radial-gradient(circle at 10% 0%, rgba(112, 228, 255, 0.07), transparent 38%),
    linear-gradient(145deg, rgba(10, 22, 38, 0.9), rgba(3, 8, 19, 0.96));
  box-shadow:
    inset 0 0 24px rgba(0, 0, 0, 0.24),
    inset 0 1px rgba(255, 255, 255, 0.035),
    0 8px 22px rgba(0, 0, 0, 0.22);
  overflow-y: auto;
  overflow-x: hidden;
  cursor: text;
}

input:focus, textarea:focus, .input-field:focus,
.output-field:focus, .output-box:focus {
  border-color: var(--winter-cyan);
  background:
    radial-gradient(circle at 12% 0%, rgba(112, 228, 255, 0.12), transparent 42%),
    radial-gradient(circle at 90% 100%, rgba(185, 156, 255, 0.08), transparent 38%),
    linear-gradient(145deg, rgba(14, 31, 51, 0.95), rgba(4, 11, 21, 0.98));
  box-shadow:
    0 0 0 1px rgba(112, 228, 255, 0.08),
    0 0 22px rgba(112, 228, 255, 0.15),
    inset 3px 0 var(--winter-cyan),
    inset 0 0 28px rgba(112, 228, 255, 0.035);
  transform: none;
}

/* 只读输出框 */
.output-field, .output-box {
  padding: 12px 20px;
  color: var(--winter-subtle-gray);
  border-color: rgba(185, 156, 255, 0.16);
  background:
    radial-gradient(circle at 90% 0%, rgba(185, 156, 255, 0.08), transparent 38%),
    linear-gradient(145deg, rgba(10, 22, 38, 0.84), rgba(3, 8, 19, 0.94));
}

/* 禁用状态 */
.btn:disabled, button:disabled,
input:disabled, textarea:disabled, .input-field:disabled {
  color: rgba(169, 191, 211, 0.45);
  border-color: rgba(151, 213, 255, 0.07);
  background: linear-gradient(145deg, rgba(10, 22, 38, 0.52), rgba(3, 8, 19, 0.7));
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.02);
  text-shadow: none;
  cursor: not-allowed;
  opacity: 0.68;
  transform: none;
}

/* 滚动条样式（适配深空霓虹色系） */
textarea::-webkit-scrollbar,
.input-field::-webkit-scrollbar,
.output-field::-webkit-scrollbar,
.output-box::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

textarea::-webkit-scrollbar-track,
.input-field::-webkit-scrollbar-track,
.output-field::-webkit-scrollbar-track,
.output-box::-webkit-scrollbar-track {
  background: rgba(3, 8, 19, 0.55);
  border-radius: 6px;
}

textarea::-webkit-scrollbar-thumb,
.input-field::-webkit-scrollbar-thumb,
.output-field::-webkit-scrollbar-thumb,
.output-box::-webkit-scrollbar-thumb {
  border-radius: 6px;
  background:
    linear-gradient(
      to bottom,
      rgba(112, 228, 255, 0.68),
      rgba(185, 156, 255, 0.5)
    );
  box-shadow: 0 0 8px rgba(112, 228, 255, 0.24);
}

textarea::-webkit-scrollbar-thumb:hover,
.input-field::-webkit-scrollbar-thumb:hover,
.output-field::-webkit-scrollbar-thumb:hover,
.output-box::-webkit-scrollbar-thumb:hover {
  background:
    linear-gradient(
      to bottom,
      var(--winter-cyan),
      var(--winter-purple)
    );
}

/* 减少动态效果 */
@media (prefers-reduced-motion: reduce) {
  .btn, button, input, textarea, .input-field,
  .btn::before, button::before, input::before, textarea::before, .input-field::before {
    transition: none;
  }
}