/* ============================================================
 * 城心社区 ·《你与阿尔兹海默症有多远》H5
 * 样式层 / 视觉设计层
 * 设计语言：深夜蓝底 + 神经元光晕 + 暖金点缀 + 宋体标题
 * 修改配色、字号、圆角、动效，只需改本文件顶部 tokens
 * ============================================================ */

/* ---------- 设计 tokens ---------- */
:root{
  --bg:        #0A1120;
  --bg-deep:   #070C17;
  --ink:       #F4EFE4;
  --ink-dim:   #C9C3B4;
  --muted:     #97A3B8;
  --line:      rgba(244,239,228,.14);
  --card:      rgba(255,255,255,.055);
  --card-soft: rgba(255,255,255,.09);
  --gold:      #E7C489;
  --gold-deep: #C89B5A;
  --gold-ink:  #221806;
  --teal:      #5FD3C0;
  --teal-soft: rgba(95,211,192,.14);
  --coral:     #F08A7E;
  --amber:     #F2B763;
  --ok:        #7BD88F;
  --bad:       #F08A7E;
  --serif: "Songti SC","STSong","Noto Serif SC","Source Han Serif SC",serif;
  --sans: -apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --r-sm: 12px; --r-md: 16px; --r-lg: 24px; --r-pill: 999px;
  --shadow-card: 0 12px 40px rgba(4,8,18,.45);
  --ease: cubic-bezier(.22,.8,.3,1);
}

/* ---------- 基础 ---------- */
*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html{height:100%}
body{
  min-height:100dvh;background:var(--bg);color:var(--ink);
  font:15px/1.7 var(--sans);overflow-x:hidden;
}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
input{font-family:inherit}
a{color:var(--gold);text-decoration:underline;text-underline-offset:3px}
b,strong{font-weight:600}
:focus-visible{outline:2px solid var(--teal);outline-offset:2px;border-radius:4px}

/* 背景氛围层 */
.ambient{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden;
  background:
    radial-gradient(1100px 700px at 85% -10%, rgba(95,211,192,.13), transparent 60%),
    radial-gradient(900px 600px at -10% 20%, rgba(231,196,137,.10), transparent 55%),
    radial-gradient(800px 800px at 50% 120%, rgba(46,86,138,.18), transparent 60%),
    linear-gradient(180deg,var(--bg-deep),var(--bg) 40%,var(--bg-deep));
}
.orb{position:absolute;border-radius:50%;filter:blur(70px);opacity:.5;animation:float 14s var(--ease) infinite alternate}
.orb-a{width:300px;height:300px;left:-120px;top:8%;background:rgba(95,211,192,.16)}
.orb-b{width:340px;height:340px;right:-140px;top:34%;background:rgba(231,196,137,.13);animation-delay:-5s}
.orb-c{width:260px;height:260px;left:20%;bottom:-100px;background:rgba(66,110,170,.22);animation-delay:-9s}
@keyframes float{from{transform:translateY(0)}to{transform:translateY(-36px)}}

/* 噪点纹理（纯 CSS，无外部资源） */
body::after{
  content:"";position:fixed;inset:0;z-index:1;pointer-events:none;opacity:.035;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='0.6'/%3E%3C/svg%3E");
}

/* ---------- 应用框架 ---------- */
.app{
  position:relative;z-index:2;max-width:480px;margin:0 auto;
  min-height:100dvh;display:flex;flex-direction:column;
}
@media(min-width:760px){
  .app{
    border-left:1px solid var(--line);border-right:1px solid var(--line);
    box-shadow:0 0 90px rgba(3,6,14,.75);
  }
}

/* ---------- 顶部进度 HUD ---------- */
.hud{
  position:sticky;top:0;z-index:30;padding:calc(12px + env(safe-area-inset-top)) 22px 12px;
  background:linear-gradient(180deg,rgba(10,17,32,.96),rgba(10,17,32,.82));
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
}
.hud-brand{font-size:11px;letter-spacing:.22em;color:var(--gold);display:flex;align-items:center;gap:6px}
.hud-brand::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--teal);box-shadow:0 0 8px var(--teal)}
.hud-sep{color:var(--muted)}
.hud-meta{position:absolute;right:22px;top:calc(14px + env(safe-area-inset-top));font-size:12px;color:var(--muted)}
.hud-total{opacity:.6}
.hud-track{margin-top:10px;height:3px;border-radius:3px;background:rgba(255,255,255,.10);overflow:hidden}
.hud-track i{display:block;height:100%;width:0;border-radius:3px;
  background:linear-gradient(90deg,var(--teal),var(--gold));transition:width .5s var(--ease)}

/* ---------- 页面切换 ---------- */
.screen{display:none;flex:1;flex-direction:column;padding:34px 22px calc(30px + env(safe-area-inset-bottom));
  animation:none}
.screen.is-active{display:flex;animation:screenIn .5s var(--ease) both}
@keyframes screenIn{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}

/* ---------- 标题体系 ---------- */
.eyebrow{
  font-size:11px;letter-spacing:.34em;color:var(--gold);display:flex;align-items:center;gap:8px;
}
.badge-mark{width:8px;height:8px;border-radius:50%;background:var(--teal);box-shadow:0 0 10px var(--teal)}
.display{
  font-family:var(--serif);font-weight:600;
  font-size:clamp(38px,11vw,52px);line-height:1.24;letter-spacing:.02em;margin:18px 0 14px;
}
.display em{
  font-style:normal;
  background:linear-gradient(120deg,var(--gold) 10%,#F6E3B8 45%,var(--gold-deep) 80%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.q-title{font-family:var(--serif);font-weight:600;font-size:clamp(23px,6.4vw,28px);line-height:1.35}
.q-title em{font-style:normal;color:var(--gold)}
.q-sub{color:var(--muted);font-size:14px;margin-top:8px}
.head{margin-bottom:26px}

/* ---------- 封面 ---------- */
#screen-cover{position:relative;padding-top:calc(60px + env(safe-area-inset-top))}
.cover-art{position:absolute;top:0;left:0;right:0;height:290px;opacity:.95}
.cover-art .n{animation:pulse 4.5s ease-in-out infinite}
.cover-art .n:nth-child(3n){animation-delay:-1.4s}
.cover-art .n:nth-child(3n+1){animation-delay:-2.7s}
@keyframes pulse{0%,100%{opacity:.55}50%{opacity:1}}
.cover-inner{position:relative;margin-top:120px}
.cover-sub{color:var(--ink-dim);font-size:15px;letter-spacing:.06em;margin-bottom:26px}
.cover-facts{list-style:none;margin-bottom:38px}
.cover-facts li{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:13px;padding:4px 0}
.fact-dot{width:5px;height:5px;border-radius:50%;background:var(--gold);flex:none}
.cover-tip{text-align:center;color:var(--muted);font-size:12px;margin-top:16px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  border-radius:var(--r-pill);font-size:16px;font-weight:600;letter-spacing:.04em;
  padding:15px 30px;transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s,border-color .18s,opacity .18s;
  min-height:50px;user-select:none;
}
.btn:active{transform:scale(.965)}
.btn-lg{width:100%}
.btn-primary{
  background:linear-gradient(135deg,#F0D5A0,var(--gold) 55%,var(--gold-deep));
  color:var(--gold-ink);
  box-shadow:0 10px 30px rgba(231,196,137,.28),inset 0 1px 0 rgba(255,255,255,.45);
}
.btn-primary:hover{box-shadow:0 14px 38px rgba(231,196,137,.4),inset 0 1px 0 rgba(255,255,255,.45)}
.btn-primary:disabled{opacity:.4;box-shadow:none;cursor:not-allowed}
.btn-arrow{font-size:18px;transition:transform .2s var(--ease)}
.btn:hover .btn-arrow{transform:translateX(4px)}
.btn-ghost{border:1px solid var(--line);color:var(--ink);background:rgba(255,255,255,.03)}
.btn-ghost:hover{border-color:var(--gold);color:var(--gold)}
.btn-text{color:var(--muted);font-size:14px;text-decoration:underline;text-underline-offset:4px;min-height:40px;padding:8px}
.btn-text:hover{color:var(--gold)}

/* ---------- 准备页 ---------- */
.intro-list{display:flex;flex-direction:column;gap:14px;margin-bottom:36px}
.intro-item{display:flex;gap:16px;align-items:flex-start;padding:18px;border-radius:var(--r-md);
  background:var(--card);border:1px solid var(--line);backdrop-filter:blur(8px)}
.intro-num{font-family:var(--serif);font-size:22px;color:var(--gold);opacity:.9;line-height:1.3;flex:none}
.intro-item h3{font-size:16px;font-weight:600;margin-bottom:2px}
.intro-item p{color:var(--muted);font-size:13px}
.fine{text-align:center;color:var(--muted);font-size:12px;margin-top:18px;opacity:.75}

/* ---------- 记忆登记 ---------- */
.mem-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:30px}
.mem-card{
  aspect-ratio:4/4.6;border-radius:var(--r-md);background:var(--card);
  border:1px solid var(--line);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  animation:memPop .6s var(--ease) both;
}
.mem-card:nth-child(2){animation-delay:.12s}
.mem-card:nth-child(3){animation-delay:.24s}
@keyframes memPop{from{opacity:0;transform:translateY(14px) scale(.92)}to{opacity:1;transform:none}}
.mem-card svg{width:44px;height:44px}
.mem-card b{font-family:var(--serif);font-size:19px;letter-spacing:.08em}
.mem-timer{display:flex;flex-direction:column;align-items:center;gap:6px;margin-bottom:26px}
.ring-sm{width:64px;height:64px;transform:rotate(-90deg)}
.ring-sm circle{fill:none;stroke-width:4}
.mem-timer span{position:relative;margin-top:-46px;font-family:var(--serif);font-size:18px;color:var(--gold)}

/* ---------- 环形进度（通用） ---------- */
.ring{width:132px;height:132px;transform:rotate(-90deg)}
.ring circle{fill:none;stroke-width:7}
.ring-bg{stroke:rgba(255,255,255,.10)}
.ring-fg{stroke:var(--teal);stroke-linecap:round;transition:stroke-dashoffset .25s linear}
.ring-gold{stroke:var(--gold)}
.ring-score{stroke:url(#none);stroke:var(--gold)}

/* ---------- 选项网格 ---------- */
.option-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.opt{
  padding:19px 12px;border-radius:var(--r-md);background:var(--card);border:1px solid var(--line);
  font-size:16px;text-align:center;color:var(--ink);
  transition:transform .15s var(--ease),border-color .2s,background .2s;
  min-height:56px;display:flex;align-items:center;justify-content:center;
}
.opt:hover{border-color:rgba(95,211,192,.55);background:var(--teal-soft)}
.opt:active{transform:scale(.96)}
.opt.is-picked{border-color:var(--teal);background:var(--teal-soft);box-shadow:0 0 0 1px var(--teal) inset}
.opt.is-correct{border-color:var(--ok);background:rgba(123,216,143,.14)}
.opt.is-wrong{border-color:var(--bad);background:rgba(240,138,126,.12);animation:shake .4s}
@keyframes shake{0%,100%{transform:translateX(0)}20%{transform:translateX(-5px)}40%{transform:translateX(5px)}60%{transform:translateX(-3px)}80%{transform:translateX(3px)}}
.week-grid .opt{font-family:var(--serif);font-size:17px}
.recall-grid .opt{flex-direction:column;gap:8px;padding:22px 10px}
.recall-grid .opt svg{width:40px;height:40px}
.recall-grid .opt b{font-family:var(--serif);font-size:17px;font-weight:600}
.recall-hint{text-align:center;color:var(--muted);font-size:13px;margin-top:20px}

/* ---------- 画钟 ---------- */
.paper{
  position:relative;background:#F5F0E4;border-radius:var(--r-md);height:210px;overflow:hidden;
  box-shadow:var(--shadow-card),inset 0 0 0 1px rgba(0,0,0,.06);
}
.paper::before{content:"";position:absolute;inset:0;opacity:.5;pointer-events:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='p'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='2'/%3E%3C/filter%3E%3Crect width='120' height='120' filter='url(%23p)' opacity='0.05'/%3E%3C/svg%3E")}
#clock-canvas{position:absolute;inset:0;width:100%;height:100%;touch-action:none}
.paper-clear{
  position:absolute;right:10px;bottom:10px;z-index:2;font-size:12px;color:#6B6250;
  background:rgba(255,255,255,.75);border:1px solid rgba(0,0,0,.12);border-radius:var(--r-pill);
  padding:6px 14px;backdrop-filter:blur(4px);
}
.clock-ask{color:var(--muted);font-size:13px;margin:22px 0 12px}
.rating-list{display:flex;flex-direction:column;gap:12px}
.rating{
  display:flex;gap:14px;align-items:center;text-align:left;padding:16px;border-radius:var(--r-md);
  background:var(--card);border:1px solid var(--line);transition:border-color .2s,background .2s,transform .15s;
}
.rating:hover{border-color:rgba(231,196,137,.5)}
.rating:active{transform:scale(.98)}
.rating.is-picked{border-color:var(--gold);background:rgba(231,196,137,.10)}
.rating-key{
  flex:none;width:34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);font-family:var(--serif);font-size:15px;color:var(--gold);
}
.rating b{font-size:15px}
.rating p{color:var(--muted);font-size:12.5px;margin-top:2px}

/* ---------- 心算 ---------- */
.train-track{display:flex;align-items:center;gap:8px;margin-bottom:20px}
.train-stop{flex:1;height:6px;border-radius:6px;background:rgba(255,255,255,.10);overflow:hidden;transition:background .3s}
.train-stop.done{background:linear-gradient(90deg,var(--teal),var(--gold))}
.calc-card{
  border-radius:var(--r-lg);background:var(--card);border:1px solid var(--line);
  padding:30px 22px;text-align:center;backdrop-filter:blur(8px);
}
.calc-q{font-family:var(--serif);font-size:clamp(26px,7vw,32px);margin-bottom:8px;letter-spacing:.04em}
.calc-step{color:var(--muted);font-size:12px;letter-spacing:.2em;margin-bottom:22px}
.calc-opts{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.calc-opts .opt{font-family:var(--serif);font-size:20px}
.calc-card.shake{animation:shake .4s}

/* ---------- 动物流畅 ---------- */
.fluency-panel{position:relative;display:flex;flex-direction:column;align-items:center;padding:30px 0 24px;margin-bottom:6px}
.flu-center{position:absolute;top:30px;left:50%;transform:translateX(-50%);width:132px;height:132px;display:flex;flex-direction:column;align-items:center;justify-content:center}
.flu-center b{display:block;font-family:var(--serif);font-size:40px;line-height:1;color:var(--gold)}
.flu-center span{font-size:11px;color:var(--muted);letter-spacing:.2em}
.flu-count{color:var(--muted);font-size:13px;margin-top:14px}
.flu-count b{color:var(--ink);font-size:18px}
.flu-start{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  background:radial-gradient(closest-side,rgba(10,17,32,.88),rgba(10,17,32,.55))}
.flu-form{display:flex;gap:10px;margin-bottom:14px}
.flu-form input{
  flex:1;background:var(--card);border:1px solid var(--line);border-radius:var(--r-pill);
  padding:13px 20px;color:var(--ink);font-size:16px;min-width:0;
}
.flu-form input::placeholder{color:var(--muted)}
.flu-form input:focus{outline:none;border-color:var(--gold)}
.flu-form input:disabled{opacity:.45}
.flu-add{width:56px;padding:0;font-size:22px;flex:none}
.chip-wrap{display:flex;flex-wrap:wrap;gap:8px;min-height:20px}
.chip{
  font-size:13px;color:var(--ink);background:var(--teal-soft);border:1px solid rgba(95,211,192,.35);
  border-radius:var(--r-pill);padding:6px 14px;animation:memPop .3s var(--ease) both;
}

/* ---------- 数字连线 ---------- */
.trail-wrap{margin-bottom:20px}
.trail-info{display:flex;justify-content:space-between;color:var(--muted);font-size:13px;margin-bottom:10px}
.trail-info b{color:var(--gold);font-size:15px}
.trail-board{
  position:relative;height:300px;border-radius:var(--r-lg);overflow:hidden;
  background:linear-gradient(160deg,rgba(255,255,255,.05),rgba(255,255,255,.02));
  border:1px solid var(--line);
}
#trail-lines{position:absolute;inset:0;width:100%;height:100%}
#trail-lines line{stroke:var(--teal);stroke-width:3;vector-effect:non-scaling-stroke;opacity:.85;
  stroke-linecap:round}
.trail-dot{
  position:absolute;width:56px;height:56px;border-radius:50%;transform:translate(-50%,-50%);
  background:rgba(10,17,32,.9);border:1.5px solid var(--line);
  font-family:var(--serif);font-size:21px;color:var(--ink);
  display:flex;align-items:center;justify-content:center;
  transition:transform .15s var(--ease),border-color .2s,background .2s;
}
.trail-dot:active{transform:translate(-50%,-50%) scale(.9)}
.trail-dot.hit{background:var(--teal-soft);border-color:var(--teal);color:var(--teal);box-shadow:0 0 16px rgba(95,211,192,.35)}
.trail-dot.wrong{animation:shake .4s;border-color:var(--bad)}

/* ---------- 日常生活 ---------- */
.daily-list{display:flex;flex-direction:column;gap:12px;margin-bottom:28px}
.daily-item{border-radius:var(--r-md);background:var(--card);border:1px solid var(--line);padding:16px}
.daily-item p{font-size:14.5px;margin-bottom:12px}
.seg{display:flex;gap:8px}
.seg button{
  flex:1;padding:9px 0;border-radius:var(--r-sm);border:1px solid var(--line);
  font-size:13.5px;color:var(--muted);transition:all .18s;
}
.seg button:hover{color:var(--ink)}
.seg button.picked{background:linear-gradient(135deg,rgba(231,196,137,.22),rgba(200,155,90,.18));
  border-color:var(--gold);color:var(--gold)}

/* ---------- 结果页 ---------- */
.result-top{display:flex;flex-direction:column;align-items:center;margin:6px 0 20px}
.score-ring{width:190px;height:190px;transform:rotate(-90deg)}
.score-ring circle{fill:none;stroke-width:10}
.score-ring .ring-fg{transition:stroke-dashoffset 1.2s var(--ease)}
.score-center{position:relative;margin-top:-138px;text-align:center;pointer-events:none}
.score-center b{display:block;font-family:var(--serif);font-size:52px;line-height:1.1}
.score-center span{font-size:12px;color:var(--muted);letter-spacing:.3em}
.result-title{font-family:var(--serif);text-align:center;font-size:clamp(24px,7vw,30px)}
.result-tag{text-align:center;color:var(--gold);font-size:14px;letter-spacing:.14em;margin:6px 0 22px}
.dims{display:flex;flex-direction:column;gap:12px;margin-bottom:22px}
.dim{display:grid;grid-template-columns:34px 1fr 34px;align-items:center;gap:10px;font-size:13px}
.dim-name{color:var(--ink-dim)}
.dim-val{text-align:right;color:var(--gold);font-family:var(--serif)}
.dim-track{height:6px;border-radius:6px;background:rgba(255,255,255,.09);overflow:hidden}
.dim-fill{height:100%;width:0;border-radius:6px;transition:width 1s var(--ease);
  background:linear-gradient(90deg,var(--teal),var(--gold))}
.dim-fill.low{background:linear-gradient(90deg,var(--coral),var(--amber))}
.card{border-radius:var(--r-md);background:var(--card);border:1px solid var(--line);padding:20px}
.result-copy{font-size:14.5px;color:var(--ink-dim);margin-bottom:16px}
.result-copy p+p{margin-top:10px}
.result-copy b{color:var(--gold)}
.notice{
  border-radius:var(--r-md);border:1px solid rgba(242,183,99,.35);background:rgba(242,183,99,.07);
  padding:14px 16px;margin-bottom:24px;font-size:12.5px;color:var(--ink-dim);
}
.notice h4{font-size:13px;color:var(--amber);margin-bottom:4px;letter-spacing:.1em}
.notice p{line-height:1.75}
#btn-retry{margin:14px auto 0}

/* ---------- 留资 ---------- */
.lead-form{display:flex;flex-direction:column;gap:20px;padding:26px 20px;margin-bottom:8px}
.field{display:flex;flex-direction:column;gap:8px}
.field span{font-size:13px;color:var(--muted)}
.field input{
  background:transparent;border:none;border-bottom:1px solid var(--line);
  padding:10px 2px;color:var(--ink);font-size:17px;
}
.field input::placeholder{color:rgba(151,163,184,.55)}
.field input:focus{outline:none;border-bottom-color:var(--gold)}
.field.err input{border-bottom-color:var(--bad)}
.consent{display:flex;gap:10px;align-items:flex-start;cursor:pointer;font-size:12.5px;color:var(--muted);line-height:1.7}
.consent input{position:absolute;opacity:0;width:1px;height:1px}
.consent-box{
  flex:none;width:18px;height:18px;border-radius:5px;border:1.5px solid var(--line);margin-top:2px;
  display:flex;align-items:center;justify-content:center;transition:all .18s;
}
.consent-box::after{content:"";width:9px;height:5px;border-left:2px solid var(--gold-ink);border-bottom:2px solid var(--gold-ink);
  transform:rotate(-45deg) translateY(-1px);opacity:0}
.consent input:checked + .consent-box{background:var(--gold);border-color:var(--gold)}
.consent input:checked + .consent-box::after{opacity:1}
.consent input:focus-visible + .consent-box{outline:2px solid var(--teal);outline-offset:2px}
.field-err{color:var(--bad);font-size:13px;min-height:0;margin-top:-10px}
.field-err:empty{display:none}

/* ---------- 成功页 ---------- */
.thanks-icon{
  width:76px;height:76px;margin:24px auto 20px;border-radius:50%;color:var(--gold);
  background:var(--teal-soft);border:1px solid rgba(95,211,192,.4);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 0 40px rgba(95,211,192,.25);
}
.thanks-icon svg{width:40px;height:40px}
#screen-thanks .q-title{text-align:center}
.thanks-sub{text-align:center}
.service-grid{display:flex;flex-direction:column;gap:12px;margin:26px 0 8px}
.service-card{display:flex;gap:14px;align-items:flex-start;padding:16px;border-radius:var(--r-md);
  background:var(--card);border:1px solid var(--line)}
.svc-num{font-family:var(--serif);color:var(--gold);font-size:16px;line-height:1.6;flex:none}
.service-card h3{font-size:15px;font-weight:600}
.service-card p{color:var(--muted);font-size:12.5px;margin-top:2px}
#btn-restart{margin:10px auto 0}

/* ---------- 弹窗 ---------- */
.modal{position:fixed;inset:0;z-index:60;display:flex;align-items:flex-end;justify-content:center}
.modal[hidden]{display:none}
.modal-mask{position:absolute;inset:0;background:rgba(4,7,14,.72);backdrop-filter:blur(6px)}
.modal-card{
  position:relative;width:min(480px,100%);border-radius:var(--r-lg) var(--r-lg) 0 0;
  background:linear-gradient(180deg,#122034,#0C1626);border:1px solid var(--line);border-bottom:none;
  padding:28px 24px calc(26px + env(safe-area-inset-bottom));animation:sheetUp .35s var(--ease);
}
@keyframes sheetUp{from{transform:translateY(60px);opacity:0}to{transform:none;opacity:1}}
.modal-card h3{font-family:var(--serif);font-size:20px;margin-bottom:14px}
.modal-body{font-size:13.5px;color:var(--ink-dim);line-height:1.8}
.modal-body ul{margin:10px 0 10px 18px}
.modal-card .btn{margin-top:22px}
@media(min-width:760px){
  .modal{align-items:center;padding:20px}
  .modal-card{border-radius:var(--r-lg);border-bottom:1px solid var(--line)}
}

/* ---------- Toast ---------- */
.toast{
  position:fixed;left:50%;bottom:calc(40px + env(safe-area-inset-bottom));z-index:70;
  transform:translateX(-50%) translateY(20px);opacity:0;pointer-events:none;
  background:rgba(20,30,48,.95);border:1px solid var(--line);color:var(--ink);
  padding:11px 22px;border-radius:var(--r-pill);font-size:14px;white-space:nowrap;
  transition:all .3s var(--ease);backdrop-filter:blur(8px);
}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* ---------- 小屏适配 ---------- */
@media(max-width:360px){
  .screen{padding-left:16px;padding-right:16px}
  .opt{font-size:14.5px;padding:16px 10px}
  .mem-grid{gap:8px}
  .trail-board{height:270px}
}

/* ---------- 动效降级 ---------- */
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .screen.is-active{animation:none}
}