/* 鹏翔E传体验官 · 对话式智能体样式
   浅蓝明亮 + 科技感（玻璃拟态 / 光晕 / 网格 / 扫描光）
   纯 CSS，无外部依赖；所有类名与原版保持一致，避免影响前端逻辑 */

:root{
  --bg:#EEF5FF;
  --bg-2:#F7FBFF;
  --surface:rgba(255,255,255,.86);
  --surface-solid:#FFFFFF;
  --surface-2:#F7FAFF;
  --ink:#08152B;
  --ink-2:#22334E;
  --muted:#63748F;
  --line:rgba(28,86,168,.12);
  --line-2:rgba(28,86,168,.22);
  --brand:#0B63FF;
  --brand-2:#2E9BFF;
  --brand-3:#00D3FF;
  --cyan:#00E5FF;
  --mint:#00D9A3;
  --brand-soft:rgba(11,99,255,.075);
  --ok:#0FA968;
  --warn:#E8871A;
  --bad:#E5484D;
  --glow:0 0 0 1px rgba(0,140,255,.10), 0 12px 34px -18px rgba(8,60,150,.45);
  --shadow-sm:0 1px 2px rgba(10,40,90,.05), 0 8px 22px -14px rgba(10,40,90,.28);
  --shadow-md:0 2px 8px rgba(10,40,90,.06), 0 26px 60px -30px rgba(10,50,130,.42);
  --radius:18px;
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:15px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  font-variant-ligatures:none;
}
a{color:var(--brand);text-decoration:none}
::selection{background:rgba(0,211,255,.28);color:#062044}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-thumb{background:linear-gradient(180deg,#BBD6FF,#9EC2FB);border-radius:10px;border:2px solid transparent;background-clip:padding-box}
::-webkit-scrollbar-track{background:transparent}

/* ---------- 背景：极光 + 网格 + 光点 ---------- */
.bgfx{
  position:fixed;inset:0;z-index:-1;overflow:hidden;
  background:
    radial-gradient(1100px 620px at 50% -8%, #E4F0FF 0%, rgba(238,245,255,0) 72%),
    radial-gradient(900px 520px at 88% 8%, rgba(0,229,255,.16) 0%, rgba(238,245,255,0) 68%),
    linear-gradient(180deg,#F8FBFF 0%, #EEF5FF 38%, #F6FAFF 100%);
}
.bgfx .orb{position:absolute;border-radius:50%;filter:blur(64px);opacity:.5}
.orb-a{width:540px;height:540px;left:-140px;top:-170px;
  background:radial-gradient(circle at 40% 40%,#7FB6FF,#D8E9FF 68%,transparent)}
.orb-b{width:680px;height:680px;right:-220px;top:60px;
  background:radial-gradient(circle at 50% 50%,#A9E6FF,#E8F6FF 66%,transparent)}
.orb-c{width:420px;height:420px;left:38%;bottom:-240px;
  background:radial-gradient(circle at 50% 50%,#C8F6E6,#F0FFFB 70%,transparent);opacity:.42}
.bgfx .grid{position:absolute;inset:-10%;
  background-image:
    linear-gradient(rgba(11,99,255,.085) 1px,transparent 1px),
    linear-gradient(90deg,rgba(11,99,255,.085) 1px,transparent 1px);
  background-size:54px 54px;
  transform:perspective(900px) rotateX(56deg) translateY(-8%);
  transform-origin:50% 0;
  mask-image:radial-gradient(1200px 640px at 50% 0%,rgba(0,0,0,.62),transparent 76%);
  -webkit-mask-image:radial-gradient(1200px 640px at 50% 0%,rgba(0,0,0,.62),transparent 76%);
  animation:gridflow 22s linear infinite;
}
@keyframes gridflow{from{background-position:0 0,0 0}to{background-position:0 54px,54px 0}}
.bgfx .spark{position:absolute;inset:0;pointer-events:none;opacity:.55;
  background-image:
    radial-gradient(1.6px 1.6px at 12% 22%,rgba(11,99,255,.55),transparent),
    radial-gradient(1.4px 1.4px at 78% 16%,rgba(0,211,255,.6),transparent),
    radial-gradient(1.8px 1.8px at 62% 68%,rgba(11,99,255,.45),transparent),
    radial-gradient(1.4px 1.4px at 28% 82%,rgba(0,217,163,.5),transparent),
    radial-gradient(1.5px 1.5px at 90% 74%,rgba(46,155,255,.5),transparent),
    radial-gradient(1.2px 1.2px at 44% 40%,rgba(0,211,255,.4),transparent);
  animation:sparkle 6s ease-in-out infinite alternate;
}
@keyframes sparkle{from{opacity:.32;transform:translateY(0)}to{opacity:.75;transform:translateY(-8px)}}

/* ---------- 布局 ---------- */
.app{display:flex;flex-direction:column;min-height:100vh}
.topbar{
  position:sticky;top:0;z-index:30;
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:13px 28px;
  background:rgba(255,255,255,.68);
  backdrop-filter:saturate(190%) blur(18px);
  -webkit-backdrop-filter:saturate(190%) blur(18px);
  border-bottom:1px solid rgba(28,86,168,.10);
  box-shadow:0 1px 0 rgba(255,255,255,.7) inset, 0 10px 30px -26px rgba(10,50,130,.5);
}
.brand{display:flex;align-items:center;gap:11px;min-width:0}
.mark{
  position:relative;width:38px;height:38px;flex:none;border-radius:12px;
  display:grid;place-items:center;color:#fff;font-weight:700;font-size:16px;letter-spacing:.5px;
  background:linear-gradient(140deg,#0B63FF,#2E9BFF 55%,#00D3FF);
  box-shadow:0 8px 22px -10px rgba(11,99,255,.85), 0 0 0 1px rgba(255,255,255,.5) inset;
}
.mark::after{
  content:"";position:absolute;inset:-4px;border-radius:15px;z-index:-1;
  background:conic-gradient(from 0deg,rgba(0,211,255,.55),rgba(11,99,255,.15),rgba(0,229,255,.55),rgba(11,99,255,.15));
  filter:blur(9px);opacity:.75;animation:spin 8s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}
.brand-txt{display:flex;flex-direction:column;line-height:1.2;min-width:0}
.brand-txt b{font-size:15.5px;letter-spacing:.2px;color:#08152B}
.brand-txt i{font-size:11px;color:var(--muted);font-style:normal;letter-spacing:.42px}
.topbar-right{display:flex;align-items:center;gap:14px}
.pill{
  position:relative;font-size:11.5px;color:#0A54C8;background:rgba(234,243,255,.9);
  border:1px solid rgba(11,99,255,.22);border-radius:999px;padding:3px 11px 3px 10px;letter-spacing:.3px;
  display:inline-flex;align-items:center;gap:6px;
}
.pill::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-3);
  box-shadow:0 0 0 3px rgba(0,211,255,.18),0 0 10px rgba(0,211,255,.9);animation:blinkdot 1.8s ease-in-out infinite}
@keyframes blinkdot{0%,100%{opacity:.55}50%{opacity:1}}
.ghost-link{font-size:12.5px;color:var(--muted);transition:.16s}
.ghost-link:hover{color:var(--brand)}

.stage{flex:1;display:flex;flex-direction:column;align-items:center;padding:0 20px 20px;width:100%}
.hero{
  position:relative;width:100%;max-width:900px;padding:66px 8px 30px;text-align:center;
  transition:opacity .45s ease, transform .45s ease, max-height .45s ease, padding .45s ease;
  overflow:hidden;
}
.hero.hide{opacity:0;transform:translateY(-14px);max-height:0;padding-top:0;padding-bottom:0;pointer-events:none}
.hero::before{
  content:"";position:absolute;left:50%;top:0;width:760px;height:760px;transform:translate(-50%,-58%);
  background:radial-gradient(circle,rgba(0,211,255,.18),rgba(11,99,255,.10) 42%,transparent 68%);
  pointer-events:none;
}
.hero::after{
  content:"";position:absolute;left:0;right:0;top:0;bottom:0;pointer-events:none;
  background-image:
    linear-gradient(90deg,transparent,rgba(0,211,255,.85),rgba(11,99,255,.6),transparent),
    linear-gradient(rgba(0,150,255,.09) 1px,transparent 1px),
    linear-gradient(90deg,rgba(0,150,255,.09) 1px,transparent 1px);
  background-size:100% 1px,48px 48px,48px 48px;
  background-repeat:no-repeat,repeat,repeat;
  mask-image:radial-gradient(72% 62% at 50% 18%,#000 0%,rgba(0,0,0,.55) 48%,transparent 78%);
  -webkit-mask-image:radial-gradient(72% 62% at 50% 18%,#000 0%,rgba(0,0,0,.55) 48%,transparent 78%);
}
.hero-badge{
  position:relative;display:inline-flex;align-items:center;gap:9px;
  font-size:11px;letter-spacing:1.8px;color:#0A54C8;
  background:linear-gradient(180deg,rgba(255,255,255,.92),rgba(244,250,255,.86));
  border:1px solid rgba(11,99,255,.20);border-radius:999px;
  padding:6px 15px;margin-bottom:20px;
  box-shadow:0 6px 20px -14px rgba(11,99,255,.8), 0 1px 0 rgba(255,255,255,.9) inset;
  font-family:var(--mono);
}
.hero-badge b{font-weight:600;color:#0B63FF}
.hero h1{
  position:relative;margin:0 0 16px;font-size:clamp(27px,3.6vw,44px);line-height:1.3;letter-spacing:-.8px;
  font-weight:750;color:#06102A;
  text-shadow:0 1px 0 rgba(255,255,255,.6);
}
.hero h1 em{
  font-style:normal;
  background:linear-gradient(100deg,#0B63FF 0%,#2E9BFF 45%,#00D3FF 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  position:relative;
}
.hero h1 em::after{
  content:"";position:absolute;left:0;right:0;bottom:.04em;height:.30em;z-index:-1;
  background:linear-gradient(90deg,rgba(0,211,255,.30),rgba(11,99,255,.06));
  filter:blur(2px);border-radius:4px;
}
.hero-sub{max-width:660px;margin:0 auto 24px;color:#5A6E8C;font-size:14px;line-height:1.82}
.chips{display:flex;flex-wrap:wrap;gap:9px;justify-content:center;margin-bottom:22px}
.chip{
  appearance:none;cursor:pointer;font:inherit;font-size:13px;color:var(--ink-2);
  background:rgba(255,255,255,.9);border:1px solid rgba(28,86,168,.18);border-radius:999px;
  padding:8px 15px;transition:.18s ease;box-shadow:var(--shadow-sm);
  position:relative;overflow:hidden;
}
.chip::after{
  content:"";position:absolute;inset:0;border-radius:999px;pointer-events:none;
  background:linear-gradient(120deg,transparent 30%,rgba(255,255,255,.9) 48%,transparent 62%);
  transform:translateX(-120%);transition:transform .55s ease;
}
.chip:hover{border-color:rgba(11,99,255,.42);color:var(--brand);transform:translateY(-1px);
  box-shadow:0 10px 26px -16px rgba(11,99,255,.9)}
.chip:hover::after{transform:translateX(120%)}
.chip-primary{
  color:#fff;border-color:transparent;
  background:linear-gradient(135deg,#0B63FF,#2E9BFF 52%,#00CFFF);
  box-shadow:0 14px 30px -14px rgba(11,99,255,.85), 0 1px 0 rgba(255,255,255,.35) inset;
}
.chip-primary:hover{color:#fff;filter:brightness(1.05);transform:translateY(-2px)}

/* 统计条 */
.hero-meta{
  display:inline-flex;align-items:center;justify-content:center;gap:14px;flex-wrap:wrap;
  padding:8px 18px;border-radius:14px;font-size:12px;color:#7D8FA9;
  background:linear-gradient(180deg,rgba(255,255,255,.86),rgba(246,251,255,.78));
  border:1px solid rgba(28,86,168,.12);box-shadow:0 10px 28px -22px rgba(10,50,130,.55) inset;
}
.hero-meta b{color:var(--brand);font-size:13.5px;font-family:var(--mono)}
.hero-meta i{width:1px;height:11px;background:rgba(28,86,168,.16)}

/* ---------- 三块 HUD 卡片 ---------- */
.hud-strip{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;
  width:100%;max-width:760px;margin-top:34px;
}
.hud-item{
  position:relative;padding:16px 18px 15px;border-radius:15px;overflow:hidden;
  background:linear-gradient(180deg,rgba(255,255,255,.92),rgba(243,250,255,.72));
  border:1px solid rgba(11,99,255,.14);
  box-shadow:0 18px 40px -34px rgba(8,52,132,.9), 0 1px 0 rgba(255,255,255,.9) inset;
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
}
.hud-item::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,rgba(11,99,255,.2),rgba(0,211,255,.95),rgba(11,99,255,.2));
  opacity:.85;
}
.hud-item::after{
  content:"";position:absolute;right:-26px;bottom:-30px;width:96px;height:96px;border-radius:50%;
  background:radial-gradient(circle,rgba(0,211,255,.22),transparent 68%);
  pointer-events:none;
}
.hud-k{font-family:var(--mono);font-size:9.5px;letter-spacing:1.6px;color:#93A6C0}
.hud-v{margin-top:6px;font-size:15.5px;font-weight:750;color:#0A2A57;letter-spacing:.2px}
.hud-d{margin-top:5px;font-size:11.5px;line-height:1.5;color:#75879F}
@media (max-width:720px){
  .hud-strip{grid-template-columns:1fr;max-width:420px;margin-top:26px}
}

/* ---------- 对话线程 ---------- */
.thread{width:100%;max-width:900px;display:flex;flex-direction:column;gap:22px;padding-bottom:16px}

.msg{display:flex;gap:12px;animation:rise .34s cubic-bezier(.2,.7,.3,1) both}
@keyframes rise{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.msg.user{justify-content:flex-end}
.avatar{
  position:relative;width:34px;height:34px;flex:none;border-radius:11px;display:grid;place-items:center;
  font-size:13px;font-weight:700;color:#fff;
  background:linear-gradient(140deg,#0B63FF,#2E9BFF 60%,#00CFFF);
  box-shadow:0 8px 18px -10px rgba(11,99,255,.9), 0 0 0 1px rgba(255,255,255,.45) inset
}
.avatar::after{content:"";position:absolute;inset:0;border-radius:11px;
  box-shadow:0 0 0 1px rgba(0,211,255,.35);animation:pulseRing 2.4s ease-out infinite}
@keyframes pulseRing{0%{box-shadow:0 0 0 0 rgba(0,211,255,.42)}70%{box-shadow:0 0 0 9px rgba(0,211,255,0)}100%{box-shadow:0 0 0 0 rgba(0,211,255,0)}}
.avatar.rule{background:linear-gradient(140deg,#2E9BFF,#7FD3FF)}
.bubble{
  position:relative;background:var(--surface);border:1px solid rgba(28,86,168,.14);border-radius:16px;
  padding:14px 17px;box-shadow:var(--shadow-sm);max-width:min(660px,84%);
  font-size:14.5px;color:var(--ink-2);word-break:break-word;
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
}
.bubble::before{
  content:"";position:absolute;left:-1px;top:14px;bottom:14px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,rgba(0,211,255,.0),rgba(0,211,255,.75),rgba(11,99,255,.0));
  opacity:.75;
}
.bubble .who{font-size:11.5px;color:#8FA3BE;margin-bottom:6px;letter-spacing:.3px;font-family:var(--mono)}
.msg.user .bubble{
  background:linear-gradient(135deg,rgba(238,246,255,.95),rgba(222,238,255,.95));
  border-color:rgba(11,99,255,.22);color:#0B2B5B;
  box-shadow:0 14px 34px -22px rgba(11,99,255,.7);
}
.msg.user .bubble::before{display:none}
.bubble p{margin:0 0 9px}.bubble p:last-child{margin-bottom:0}
.bubble strong{color:#08152B}
.bubble .num{margin:0 0 8px;padding-left:2px}
.bubble .num b{display:inline-block;min-width:18px;color:var(--brand)}

.caret{display:inline-block;width:7px;height:15px;border-radius:2px;vertical-align:-2px;margin-left:2px;
  background:linear-gradient(180deg,#00D3FF,#0B63FF);box-shadow:0 0 10px rgba(0,211,255,.9);
  animation:blink 1s steps(1) infinite}
@keyframes blink{0%,50%{opacity:1}50.01%,100%{opacity:0}}

/* 体检进度 */
.steps{
  position:relative;background:rgba(255,255,255,.9);border:1px solid rgba(11,99,255,.16);border-radius:16px;
  padding:13px 16px;box-shadow:var(--shadow-md);min-width:270px;max-width:min(660px,84%);overflow:hidden;
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
}
.steps::after{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,transparent,#00D3FF,#0B63FF,transparent);
  background-size:60% 100%;background-repeat:no-repeat;
  animation:scanline 1.6s linear infinite;opacity:.85;
}
@keyframes scanline{from{background-position:-60% 0}to{background-position:160% 0}}
.steps .st-title{font-size:12px;color:#8FA3BE;letter-spacing:.4px;margin-bottom:9px;display:flex;justify-content:space-between;font-family:var(--mono)}
.step{display:flex;align-items:center;gap:9px;font-size:13px;color:var(--ink-2);padding:3px 0}
.step .dot{width:15px;height:15px;flex:none;border-radius:50%;border:1.5px solid var(--line-2);position:relative}
.step.running .dot{border-color:var(--brand);background:rgba(11,99,255,.10)}
.step.running .dot::after{content:"";position:absolute;inset:2px;border-radius:50%;
  background:linear-gradient(135deg,#0B63FF,#00D3FF);animation:pulse 1s ease-in-out infinite}
@keyframes pulse{0%,100%{transform:scale(.55);opacity:.4}50%{transform:scale(1);opacity:1}}
.step.done .dot{border-color:transparent;background:linear-gradient(135deg,#00D9A3,#0FA968);
  box-shadow:0 0 10px rgba(0,217,163,.55)}
.step.done .dot::after{content:"";position:absolute;left:4px;top:1.5px;width:5px;height:9px;border:1.5px solid #fff;border-top:0;border-left:0;transform:rotate(40deg)}
.step.fail .dot{border-color:transparent;background:var(--bad)}
.step.skip .dot{border-color:transparent;background:#C9D6E8}
.step .name{font-weight:500;color:#16304F}
.step .detail{color:#90A2BA;font-size:12px;margin-left:auto;max-width:52%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.step.running .name{color:var(--brand)}

/* 报告卡片 */
.rcard{
  position:relative;background:rgba(255,255,255,.92);border:1px solid rgba(11,99,255,.16);border-radius:20px;
  box-shadow:var(--shadow-md);overflow:hidden;max-width:min(680px,90%);animation:rise .4s .05s both;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.rcard::before{
  content:"";position:absolute;inset:0;border-radius:20px;padding:1px;pointer-events:none;
  background:linear-gradient(140deg,rgba(0,211,255,.65),rgba(11,99,255,.18) 40%,rgba(0,217,163,.5));
  -webkit-mask:linear-gradient(#000,#000) content-box,linear-gradient(#000,#000);
  -webkit-mask-composite:xor;mask-composite:exclude;
}
.rcard-head{display:flex;gap:16px;align-items:center;padding:18px 20px 14px;
  background:linear-gradient(120deg,rgba(247,251,255,.96),rgba(236,245,255,.9));
  border-bottom:1px solid rgba(28,86,168,.10)}
.ring{position:relative;width:90px;height:90px;flex:none}
.ring svg{display:block;filter:drop-shadow(0 6px 16px rgba(11,99,255,.22))}
.ring .val{position:absolute;inset:0;display:grid;place-items:center;line-height:1}
.ring .val b{font-size:27px;letter-spacing:-.8px;font-variant-numeric:tabular-nums;color:#0A1730}
.ring .val span{font-size:11px;color:var(--muted);display:block;margin-top:2px}
.rcard-title{min-width:0}
.rcard-title h3{margin:0 0 4px;font-size:15.5px;font-weight:650;letter-spacing:-.2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rcard-title .host{font-size:12px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-family:var(--mono)}
.tag{display:inline-block;font-size:11px;padding:2px 8px;border-radius:6px;margin-left:6px;vertical-align:1px}
.tag.A{background:#E4F9F0;color:#077A4B}.tag.B{background:#E8F1FF;color:#0A54C8}
.tag.C{background:#FFF5E5;color:#A9650C}.tag.D{background:#FFEBEA;color:#B33236}
.tag.E{background:#FFE3E2;color:#A1252A}
.dimbars{padding:8px 20px 16px;display:grid;gap:9px}
.dimbar{display:grid;grid-template-columns:88px 1fr 40px;gap:10px;align-items:center;font-size:12.5px}
.dimbar .n{color:var(--ink-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.dimbar .t{height:7px;border-radius:7px;background:linear-gradient(180deg,#EDF3FD,#E6EEFC);overflow:hidden;position:relative;
  box-shadow:0 1px 2px rgba(10,40,90,.06) inset}
.dimbar .t i{position:absolute;left:0;top:0;bottom:0;border-radius:7px;width:0;
  background:linear-gradient(90deg,#2E9BFF,#0B63FF 60%,#00D3FF);
  box-shadow:0 0 12px rgba(0,211,255,.45);
  transition:width .85s cubic-bezier(.2,.7,.3,1)}
.dimbar.low .t i{background:linear-gradient(90deg,#FFB199,#E5484D);box-shadow:0 0 10px rgba(229,72,77,.3)}
.dimbar.mid .t i{background:linear-gradient(90deg,#FFD28A,#E8871A);box-shadow:0 0 10px rgba(232,135,26,.3)}
.dimbar .v{text-align:right;font-weight:600;color:#16304F;font-variant-numeric:tabular-nums;font-family:var(--mono)}
.rcard-top{border-top:1px dashed rgba(28,86,168,.20);padding:13px 20px}
.rcard-top .lbl{font-size:11.5px;letter-spacing:.4px;color:#93A5BD;margin-bottom:8px}
.pitem{display:flex;gap:8px;font-size:13px;padding:5px 0;align-items:flex-start;color:var(--ink-2)}
.pitem .lv{flex:none;font-size:10.5px;font-weight:700;padding:1px 5px;border-radius:4px;margin-top:2px;font-family:var(--mono)}
.lv.P0{background:#FFE3E2;color:#A1252A}.lv.P1{background:#FFF0DC;color:#9A5F0B}.lv.P2{background:#EDF2FA;color:#5B6B85}
.pitem span{margin-left:0}
.rcard-foot{display:flex;gap:10px;padding:0 20px 18px;flex-wrap:wrap}
.btn{
  appearance:none;cursor:pointer;font:inherit;font-size:13.5px;font-weight:600;
  border-radius:11px;padding:10px 16px;border:1px solid transparent;transition:.18s ease;
  display:inline-flex;align-items:center;gap:7px;position:relative;overflow:hidden;
}
.btn-primary{
  background:linear-gradient(135deg,#0B63FF,#2E9BFF 55%,#00CFFF);color:#fff;
  box-shadow:0 14px 30px -16px rgba(11,99,255,.95), 0 1px 0 rgba(255,255,255,.3) inset;
}
.btn-primary:hover{filter:brightness(1.05);transform:translateY(-1px)}
.btn-line{background:rgba(255,255,255,.95);border-color:rgba(11,99,255,.24);color:#123A6B}
.btn-line:hover{border-color:rgba(11,99,255,.5);color:var(--brand);box-shadow:0 10px 24px -18px rgba(11,99,255,.9)}
.btn-ghost{background:transparent;color:var(--muted);font-weight:500;padding-left:6px;padding-right:6px}
.btn-ghost:hover{color:var(--brand)}
.btn small{font-weight:400;color:rgba(255,255,255,.82);font-size:11.5px}

/* 留资 / 兑换码卡片 */
.formcard{
  position:relative;background:rgba(255,255,255,.94);border:1px solid rgba(11,99,255,.16);border-radius:18px;
  box-shadow:var(--shadow-md);max-width:min(560px,90%);overflow:hidden;
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
}
.formcard::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,transparent,#00D3FF,#0B63FF,transparent)
}
.formcard .fc-head{padding:16px 18px 6px}
.formcard .fc-head b{font-size:14.5px}
.formcard .fc-head p{margin:6px 0 0;font-size:12.5px;color:var(--muted);line-height:1.7}
.fc-body{padding:8px 18px 18px;display:grid;gap:9px}
.field{display:grid;gap:5px}
.field label{font-size:11.5px;color:#8FA3BE;letter-spacing:.3px}
.field input,.field select,.field textarea{
  font:inherit;font-size:13.5px;color:var(--ink);
  border:1px solid rgba(28,86,168,.2);background:var(--surface-2);border-radius:10px;padding:9px 11px;outline:none;transition:.16s;
}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:rgba(11,99,255,.55);background:#fff;
  box-shadow:0 0 0 3px rgba(11,99,255,.10), 0 0 18px -6px rgba(0,211,255,.5)}
.field-2{display:grid;grid-template-columns:1fr 1fr;gap:9px}
.fc-foot{padding:0 18px 18px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.fc-note{font-size:11.5px;color:#93A5BD}
.fc-code{padding:0 18px 18px;display:none;gap:8px;align-items:center}
.fc-code.show{display:flex}
.fc-code input{flex:1;font:inherit;font-size:13px;border:1px solid rgba(28,86,168,.2);border-radius:9px;padding:8px 11px;
  background:var(--surface-2);letter-spacing:2px;text-transform:uppercase;font-family:var(--mono)}

.hintline{font-size:11.5px;color:#93A5BD;padding-left:46px}

/* 快捷建议 */
.suggests{display:flex;gap:8px;flex-wrap:wrap;padding-left:46px}
.suggests .chip{font-size:12.5px;padding:6px 13px}

/* ---------- 输入区 ---------- */
.composer{position:sticky;bottom:0;z-index:25;padding:10px 20px 18px;
  background:linear-gradient(180deg,rgba(238,245,255,0),rgba(238,245,255,.9) 40%,#EEF5FF 100%)}
.composer-inner{max-width:900px;margin:0 auto}
.box{
  display:flex;align-items:flex-end;gap:10px;
  background:rgba(255,255,255,.94);border:1px solid rgba(11,99,255,.22);border-radius:16px;
  padding:10px 10px 10px 16px;box-shadow:var(--shadow-md);transition:.22s;
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
}
.box.focus{border-color:rgba(0,211,255,.75);
  box-shadow:0 0 0 4px rgba(0,211,255,.12), 0 0 30px -10px rgba(0,211,255,.55), var(--shadow-md)}
.box textarea{
  flex:1;border:0;outline:none;resize:none;font:inherit;font-size:14.5px;line-height:1.6;
  max-height:132px;padding:5px 0;background:transparent;color:var(--ink);
}
.box textarea::placeholder{color:#9FB0C6}
.send{
  flex:none;width:40px;height:40px;border-radius:13px;border:0;cursor:pointer;color:#fff;
  background:linear-gradient(135deg,#0B63FF,#2E9BFF 55%,#00CFFF);display:grid;place-items:center;
  box-shadow:0 12px 26px -12px rgba(11,99,255,.95), 0 1px 0 rgba(255,255,255,.35) inset;transition:.18s;
}
.send:hover{filter:brightness(1.06);transform:translateY(-1px)}
.send:disabled{background:#C9D6E8;box-shadow:none;cursor:default;transform:none}
.composer-hint{text-align:center;font-size:11px;color:#96A7BD;margin-top:9px;line-height:1.6}
.composer-hint b{color:#6E839F;font-weight:600}

/* ---------- 移动端 ---------- */
@media (max-width:720px){
  .topbar{padding:11px 14px}
  .topbar-right .ghost-link:first-of-type{display:none}
  .brand-txt i{display:none}
  .hero{padding:36px 4px 22px}
  .hero h1{font-size:25px;letter-spacing:-.4px}
  .hero-sub{font-size:13px}
  .stage{padding:0 12px 12px}
  .composer{padding:8px 12px 12px}
  .bubble{max-width:88%;font-size:14px}
  .rcard,.steps,.formcard{max-width:100%}
  .hintline,.suggests{padding-left:0}
  .dimbar{grid-template-columns:76px 1fr 36px}
  .field-2{grid-template-columns:1fr}
  .thread{gap:16px}
  .bgfx .grid{opacity:.7}
}

/* ---------- 打印（报告页复用） ---------- */
@media print{
  .bgfx,.topbar,.composer,.no-print{display:none !important}
  body{background:#fff}
}

@media (prefers-reduced-motion:reduce){
  .bgfx .grid,.bgfx .spark,.mark::after,.avatar::after,.steps::after{animation:none !important}
}

/* ---------- 可读性兜底：对话气泡/报告卡不依赖透明度动画 ---------- */
/* 某些环境（后台标签页、动画被暂停、老旧浏览器）会让 opacity:0 的入场动画停在第一帧，
   导致内容已渲染却完全看不见。这里改用纯位移入场，内容始终可见。 */
@keyframes riseSafe{from{transform:translateY(8px)}to{transform:none}}
.msg{opacity:1 !important;animation:riseSafe .34s cubic-bezier(.2,.7,.3,1)}
.rcard{opacity:1 !important;animation:riseSafe .4s cubic-bezier(.2,.7,.3,1)}
@media (prefers-reduced-motion:reduce){
  .msg,.rcard{animation:none !important}
}

/* ---------- 移动端适配（手机竖屏为主：九成家长在手机上打开） ---------- */
@media (max-width:640px){
  .topbar{padding:10px 14px;gap:8px}
  .brand-txt b{font-size:14px}
  .brand-txt i{display:none}
  .topbar-right{gap:9px}
  .topbar-right .ghost-link{font-size:11.5px}
  .pill{font-size:10.5px;padding:3px 8px}
  .stage{padding:0 12px 12px}
  .hero{padding:20px 14px 14px}
  .hero-badge{font-size:10.5px;padding:5px 10px}
  .hero h1{font-size:22px;line-height:1.52;letter-spacing:-.1px}
  .hero h1 em{background:none;-webkit-background-clip:border-box;color:#0B63FF;-webkit-text-fill-color:#0B63FF}
  .hero h1 em::after{display:none}
  .hero-sub{font-size:13px;line-height:1.75;margin-bottom:18px}
  .chips{gap:7px;margin-bottom:16px}
  .chip{font-size:12.5px;padding:7px 12px}
  .hero-meta{font-size:11px;gap:6px;flex-wrap:wrap}
  .hud-strip{grid-template-columns:1fr;gap:8px}
  .hud-item{padding:10px 12px}
  .hud-k{font-size:9.5px}
  .hud-v{font-size:13px}
  .hud-d{font-size:11px}
  .thread{max-width:100%;gap:16px;padding-bottom:8px}
  .msg{gap:8px}
  .avatar{width:30px;height:30px;font-size:12px;border-radius:9px}
  .bubble{font-size:13.5px;padding:11px 12px;border-radius:13px;max-width:100%}
  .rcard{max-width:100%;border-radius:15px}
  .composer{padding:8px 12px calc(12px + env(safe-area-inset-bottom))}
  .composer-hint{font-size:10px;margin-top:6px}
  #input,textarea{font-size:16px !important}   /* iOS 小于 16px 会自动放大页面 */
  .send{width:36px;height:36px}
}

/* ---------- 策划方案卡片（v2.1） ---------- */
.pcard{
  max-width:620px;background:linear-gradient(165deg,#FFFFFF 0%,#F6FAFF 100%);
  border:1px solid #DCE9FB;border-radius:16px;padding:14px 15px;
  box-shadow:0 12px 30px rgba(22,104,255,.08);
  opacity:1 !important;animation:riseSafe .4s cubic-bezier(.2,.7,.3,1);
}
.pcard-head{display:flex;gap:11px;align-items:center}
.pcard-ico{
  flex:none;width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(150deg,#3FA6FF,#1668FF);color:#fff;font-weight:800;font-size:15px;
  box-shadow:0 8px 18px rgba(22,104,255,.26);
}
.pcard-t h3{margin:0;font-size:15px;line-height:1.4;color:#0D1B33;font-weight:800}
.pcard-sub{font-size:11.5px;color:#63748F;margin-top:3px}
.pcard-foot{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
@media (max-width:640px){
  .pcard{max-width:100%;border-radius:14px;padding:12px 13px}
  .pcard-t h3{font-size:14px}
  .pcard-foot .btn{flex:1 1 100%}
}