/* ============================================================
   心镜 MindLens · 站点样式
   深靛夜色 + 极光动效 + 暖金光；所有动效都尊重
   系统"减少动态效果"设置（prefers-reduced-motion）。
   ============================================================ */
:root{
  --bg:#08080f;
  --card:rgba(21,21,33,.72);
  --card-2:#191926;
  --line:rgba(255,255,255,.09);
  --line-2:rgba(255,255,255,.18);
  --txt:#f4f4f8;
  --dim:#9d9db3;
  --dim-2:#6f6f88;
  --brand:#7C5CFF;
  --brand-2:#B58CFF;
  --gold:#FFC857;
  --ok:#4ADE80;
  --r:18px;
  --r-sm:12px;
  --shadow:0 18px 50px rgba(0,0,0,.5);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  min-height:100vh;
  background:var(--bg);
  color:var(--txt);
  font:16px/1.75 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",Roboto,sans-serif;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input,select{font:inherit;color:inherit}
/* 下拉框：Windows 默认用系统白底，会把浅色文字盖成"白字白底"，必须显式指定 */
select{color-scheme:dark;background:var(--card-2);color:var(--txt);border:1px solid var(--line-2);border-radius:11px}
select option{background:#191926;color:#f4f4f8}
select optgroup{background:#191926;color:#f4f4f8}
::selection{background:rgba(124,92,255,.35)}
[hidden]{display:none !important}

/* ---------- 动态背景 ---------- */
/* canvas 是替换元素，单靠 inset 不会撑开，必须显式给宽高 */
#fx{position:fixed;inset:0;width:100%;height:100%;z-index:-2;display:block}
.aurora{
  position:fixed;inset:-20% -10% -10% -10%;z-index:-3;pointer-events:none;
  background:
    radial-gradient(52% 42% at 18% 12%,rgba(124,92,255,.34),transparent 62%),
    radial-gradient(46% 38% at 84% 8%,rgba(255,122,61,.20),transparent 64%),
    radial-gradient(60% 46% at 62% 88%,rgba(45,212,191,.16),transparent 66%),
    radial-gradient(40% 34% at 8% 82%,rgba(255,200,87,.14),transparent 68%);
  filter:blur(26px) saturate(115%);
  animation:drift 44s ease-in-out infinite alternate;
}
@keyframes drift{
  0%{transform:translate3d(-1.5%,-1%,0) scale(1.02)}
  50%{transform:translate3d(1.5%,1.5%,0) scale(1.06)}
  100%{transform:translate3d(-1%,1%,0) scale(1.03)}
}
.grain{
  position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.035;
  background-image:radial-gradient(rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:3px 3px;
}
@media (prefers-reduced-motion:reduce){
  .aurora{animation:none}
  #fx{display:none}
  *{animation-duration:.001s !important;transition-duration:.001s !important}
}

/* ---------- 布局 ---------- */
.wrap{max-width:1120px;margin:0 auto;padding:0 22px}
.nav{
  position:sticky;top:0;z-index:40;
  backdrop-filter:blur(14px);
  background:rgba(8,8,15,.72);
  border-bottom:1px solid var(--line);
}
.nav-in{display:flex;align-items:center;gap:26px;height:62px}
.logo{display:flex;align-items:center;gap:10px;font-weight:650;letter-spacing:.5px}
.logo i{
  width:24px;height:24px;border-radius:50%;
  background:conic-gradient(from 210deg,var(--brand),var(--gold),var(--brand-2),var(--brand));
  box-shadow:0 0 18px rgba(124,92,255,.55);
  animation:spin 14s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}
.nav-links{display:flex;gap:20px;margin-left:auto;font-size:14.5px;color:var(--dim)}
.nav-links a{transition:color .2s}
.nav-links a:hover,.nav-links a.is-active{color:var(--txt)}
.nav-cta{display:flex;align-items:center;gap:10px}

.hero{padding:74px 0 30px;text-align:center;position:relative}
.hero .kicker{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;font-size:12.5px;letter-spacing:1.6px;
  color:#d9ccff;border:1px solid rgba(124,92,255,.42);background:rgba(124,92,255,.12);
}
.hero h1{
  font-family:var(--serif);
  font-size:clamp(30px,5.4vw,52px);line-height:1.24;letter-spacing:2px;
  margin:20px 0 14px;
}
.hero h1 em{
  font-style:normal;
  background:linear-gradient(100deg,var(--brand-2),var(--gold));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero p.lead{max-width:660px;margin:0 auto;color:var(--dim);font-size:16.5px}
.hero-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:28px}
.hero-stats{display:flex;gap:26px;justify-content:center;flex-wrap:wrap;margin-top:30px;color:var(--dim-2);font-size:13.5px}
.hero-stats b{color:var(--txt);font-size:19px;font-weight:650;margin-right:5px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:11px;cursor:pointer;
  border:1px solid var(--line-2);background:rgba(255,255,255,.04);color:var(--txt);
  font-size:15px;letter-spacing:1px;transition:transform .18s,border-color .18s,background .18s,box-shadow .18s;
}
.btn:hover{border-color:var(--brand);transform:translateY(-2px)}
.btn-primary{
  border-color:transparent;font-weight:600;
  background:linear-gradient(100deg,var(--brand),var(--brand-2));
  box-shadow:0 10px 30px rgba(124,92,255,.35);
}
.btn-primary:hover{filter:brightness(1.08);box-shadow:0 14px 38px rgba(124,92,255,.45)}
.btn-gold{
  border-color:transparent;color:#2a1f00;font-weight:650;
  background:linear-gradient(100deg,#FFD479,var(--gold));
  box-shadow:0 10px 28px rgba(255,200,87,.28);
}
.btn-sm{padding:8px 16px;font-size:13.5px;border-radius:9px}
.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none}

/* ---------- 区块 ---------- */
section{padding:52px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px;flex-wrap:wrap}
.sec-head h2{font-family:var(--serif);font-size:26px;letter-spacing:3px;font-weight:600}
.sec-head span{color:var(--dim-2);font-size:13.5px}
.tabs{display:flex;gap:9px;flex-wrap:wrap;margin-bottom:20px}
.tab{
  padding:8px 15px;border-radius:999px;cursor:pointer;font-size:13.5px;
  border:1px solid var(--line);background:rgba(255,255,255,.03);color:var(--dim);transition:.2s;
}
.tab:hover{color:var(--txt);border-color:var(--line-2)}
.tab.is-on{color:#fff;border-color:transparent;background:linear-gradient(100deg,var(--brand),var(--brand-2))}

/* ---------- 测试卡片 ---------- */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(258px,1fr));gap:16px}
.tcard{
  position:relative;overflow:hidden;cursor:pointer;
  padding:22px 20px 20px;border-radius:var(--r);
  border:1px solid var(--line);background:var(--card);
  backdrop-filter:blur(8px);
  transition:transform .25s cubic-bezier(.2,.8,.2,1),border-color .25s,box-shadow .25s;
}
.tcard:hover{transform:translateY(-5px);border-color:rgba(124,92,255,.55);box-shadow:var(--shadow)}
.tcard:before{
  content:'';position:absolute;inset:0;opacity:0;transition:opacity .3s;
  background:radial-gradient(420px 160px at 80% -20%,rgba(124,92,255,.22),transparent 70%);
}
.tcard:hover:before{opacity:1}
.tcard .glyph{
  width:44px;height:44px;border-radius:13px;display:flex;align-items:center;justify-content:center;
  font-size:21px;color:var(--gold);margin-bottom:14px;
  border:1px solid var(--line-2);
  background:linear-gradient(160deg,rgba(255,200,87,.14),rgba(255,255,255,.02));
  transition:box-shadow .25s,border-color .25s;
}
.tcard .glyph svg{width:23px;height:23px}
.tcard:hover .glyph{border-color:rgba(255,200,87,.55);box-shadow:0 0 0 4px rgba(255,200,87,.07)}
.tcard h3{font-size:17.5px;margin-bottom:8px;letter-spacing:.5px}
.tcard p{color:var(--dim-2);font-size:13.5px;line-height:1.7}
.tcard .foot{display:flex;align-items:center;justify-content:space-between;margin-top:16px;font-size:12.5px;color:var(--dim-2)}
.tag{
  padding:3px 10px;border-radius:999px;font-size:11.5px;letter-spacing:.6px;
  border:1px solid var(--line-2);color:var(--dim);
}
.tag.free{color:#0d2a1b;background:linear-gradient(100deg,#7CF0B4,var(--ok));border-color:transparent;font-weight:650}
.tag.paid{color:#2a1f00;background:linear-gradient(100deg,#FFD479,var(--gold));border-color:transparent;font-weight:650}
.tag.unlocked{color:#1b1240;background:linear-gradient(100deg,#C9B4FF,var(--brand-2));border-color:transparent;font-weight:650}

/* ---------- 滚动出现 ---------- */
.reveal{opacity:0;transform:translateY(18px)}
.reveal.in{opacity:1;transform:none;transition:opacity .7s ease,transform .7s cubic-bezier(.2,.8,.2,1)}

/* ---------- 测试页 ---------- */
.quiz-wrap{max-width:760px;margin:0 auto}
.qcard{
  padding:30px 28px;border-radius:var(--r);
  border:1px solid var(--line);background:var(--card);backdrop-filter:blur(8px);
  box-shadow:var(--shadow);
}
.qbar{height:5px;border-radius:999px;background:rgba(255,255,255,.07);overflow:hidden;margin-bottom:20px}
.qbar i{
  display:block;height:100%;width:0;border-radius:999px;
  background:linear-gradient(100deg,var(--brand),var(--gold));
  transition:width .45s cubic-bezier(.2,.8,.2,1);
  background-size:200% 100%;
  animation:shimmer 3.4s linear infinite;
}
@keyframes shimmer{to{background-position:200% 0}}
.qstep{font-size:12.5px;letter-spacing:2.6px;text-transform:uppercase;color:var(--dim-2);margin-bottom:10px}
.qq{font-family:var(--serif);font-size:22px;line-height:1.6;letter-spacing:1px;margin-bottom:22px}
.qopts{display:flex;flex-direction:column;gap:11px}
.qopt{
  display:flex;align-items:flex-start;gap:13px;width:100%;text-align:left;cursor:pointer;
  padding:16px 18px;border-radius:var(--r-sm);
  border:1px solid var(--line-2);background:rgba(255,255,255,.03);
  font-size:15.5px;line-height:1.65;transition:.18s;
}
.qopt:hover{border-color:var(--brand);background:rgba(124,92,255,.10);transform:translateX(3px)}
.qopt i{
  flex:0 0 23px;height:23px;border-radius:50%;font-style:normal;
  display:flex;align-items:center;justify-content:center;font-size:12px;
  color:var(--dim);border:1px solid var(--line-2);transition:.18s;
}
.qopt:hover i{color:#fff;background:var(--brand);border-color:var(--brand)}
.qnav{display:flex;justify-content:space-between;align-items:center;margin-top:18px}
.qback{background:none;border:0;color:var(--dim-2);cursor:pointer;font-size:13.5px;padding:6px 0}
.qback:hover{color:var(--txt)}

/* ---------- 结果 ---------- */
.result{text-align:center;animation:pop .55s cubic-bezier(.2,.9,.25,1) both}
@keyframes pop{from{opacity:0;transform:translateY(16px) scale(.985)}to{opacity:1;transform:none}}
.rbadge{
  width:96px;height:96px;margin:0 auto 18px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;font-size:42px;font-family:var(--serif);
  color:var(--gold);border:1px solid var(--line-2);
  background:radial-gradient(circle at 50% 32%,rgba(255,200,87,.22),transparent 72%),var(--card-2);
  box-shadow:0 0 0 10px rgba(124,92,255,.07);
  animation:halo 6s ease-in-out infinite;
}
@keyframes halo{
  0%,100%{box-shadow:0 0 0 10px rgba(124,92,255,.07)}
  50%{box-shadow:0 0 0 16px rgba(124,92,255,.12)}
}
.rname{font-family:var(--serif);font-size:29px;letter-spacing:5px;margin-bottom:8px}
.rtag{color:var(--dim);font-size:14.5px;letter-spacing:1.6px}
.rdesc{max-width:640px;margin:20px auto;text-align:left;color:#dcdce6;font-size:15.5px;line-height:2}
.rlist{list-style:none;max-width:640px;margin:0 auto;text-align:left;display:flex;flex-direction:column;gap:9px}
.rlist li{position:relative;padding-left:17px;color:var(--dim);font-size:14.5px}
.rlist li:before{content:'';position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--brand)}
.rline{font-family:var(--serif);color:var(--gold);font-size:17px;letter-spacing:1px;margin:22px 0 0}

/* ---------- 付费墙 ---------- */
.paywall{
  margin-top:26px;padding:24px;border-radius:var(--r);text-align:center;
  border:1px dashed rgba(255,200,87,.5);
  background:linear-gradient(180deg,rgba(255,200,87,.10),rgba(124,92,255,.06));
}
.paywall h4{font-size:17px;margin-bottom:8px;letter-spacing:1px}
.paywall p{color:var(--dim);font-size:14px;margin-bottom:16px}
.lock{filter:blur(6px);opacity:.55;user-select:none;pointer-events:none}
.price-row{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin:18px 0 6px}
.price{
  min-width:190px;padding:20px;border-radius:var(--r);text-align:left;
  border:1px solid var(--line);background:var(--card);
}
.price.hot{border-color:rgba(255,200,87,.55);box-shadow:0 14px 40px rgba(255,200,87,.14)}
.price b{display:block;font-size:15px;margin-bottom:4px}
.price .amt{font-family:var(--serif);font-size:30px;color:var(--gold);letter-spacing:1px}
.price .amt s{font-size:14px;color:var(--dim-2);margin-left:6px;text-decoration-thickness:1px}
.price p{color:var(--dim-2);font-size:13px;margin-top:6px}

/* ---------- 通用卡片/文字 ---------- */
.panel{padding:26px 24px;border-radius:var(--r);border:1px solid var(--line);background:var(--card)}
.prose h2{font-family:var(--serif);font-size:22px;margin:26px 0 10px;letter-spacing:1.5px}
.prose h2:first-child{margin-top:0}
.prose p,.prose li{color:#cfcfdc;font-size:15px;line-height:2}
.prose ul{padding-left:20px;margin:10px 0}
.prose .muted{color:var(--dim-2);font-size:13.5px}
.alert{
  padding:14px 16px;border-radius:var(--r-sm);font-size:13.5px;line-height:1.8;
  border:1px solid rgba(255,200,87,.4);background:rgba(255,200,87,.08);color:#ffe9b8;
}
.toast{
  position:fixed;left:50%;bottom:28px;transform:translate(-50%,20px);
  padding:12px 20px;border-radius:999px;font-size:14px;z-index:60;
  background:rgba(20,20,32,.95);border:1px solid var(--line-2);box-shadow:var(--shadow);
  opacity:0;pointer-events:none;transition:.28s;
}
.toast.on{opacity:1;transform:translate(-50%,0)}

/* ---------- 音乐控件 ---------- */
.sound{
  position:fixed;right:18px;bottom:18px;z-index:50;
  display:flex;align-items:center;gap:9px;
  padding:10px 16px;border-radius:999px;cursor:pointer;
  border:1px solid var(--line-2);background:rgba(10,10,18,.82);backdrop-filter:blur(10px);
  color:var(--dim);font-size:13px;transition:.22s;
}
.sound:hover{color:var(--txt);border-color:var(--brand);transform:translateY(-2px)}
.sound.on{color:#d9ccff;border-color:rgba(124,92,255,.6)}
.bars{display:flex;align-items:flex-end;gap:2.5px;height:14px}
.bars i{display:block;width:3px;height:5px;border-radius:2px;background:currentColor;opacity:.75}
.sound.on .bars i{animation:eq 1.1s ease-in-out infinite}
.sound.on .bars i:nth-child(2){animation-delay:.18s}
.sound.on .bars i:nth-child(3){animation-delay:.36s}
.sound.on .bars i:nth-child(4){animation-delay:.54s}
@keyframes eq{0%,100%{height:5px}50%{height:14px}}

/* ---------- 页脚 ---------- */
footer{border-top:1px solid var(--line);margin-top:40px;padding:34px 0 46px;color:var(--dim-2);font-size:13.5px}
.foot-in{display:flex;justify-content:space-between;gap:22px;flex-wrap:wrap}
.foot-links{display:flex;gap:16px;flex-wrap:wrap}
.foot-links a:hover{color:var(--txt)}
.disc{max-width:1120px;margin:16px auto 0;padding:0 22px;color:var(--dim-2);font-size:12.5px;line-height:1.9}

@media (max-width:700px){
  .nav-links{display:none}
  .qcard{padding:22px 18px}
  .qq{font-size:19px}
  .rname{font-size:23px;letter-spacing:3px}
  .sound{right:12px;bottom:12px;padding:9px 13px}
}