:root{
  --bg:#f4f6fb;
  --card:#ffffff;
  --ink:#1a1f36;
  --ink-2:#5a6480;
  --ink-3:#8e97ad;
  --line:#e8ecf6;
  --brand:#4f6ef7;
  --brand-2:#7a5cf0;
  --brand-soft:#eef2ff;
  --good:#12b886;
  --warn:#f59f00;
  --radius:18px;
  --shadow:0 6px 24px rgba(28,40,80,.07);
}

*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background:var(--bg);color:var(--ink);line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
.app{max-width:560px;margin:0 auto;padding:0 16px 40px;min-height:100vh}

.view{display:none;animation:fade .28s ease}
.view.active{display:block}
@keyframes fade{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

/* ---------- 首页 ---------- */
.hero{padding:48px 4px 24px;text-align:center}
.hero-badge{
  display:inline-block;font-size:12px;letter-spacing:.06em;
  color:var(--brand);background:var(--brand-soft);
  padding:5px 12px;border-radius:999px;margin-bottom:14px;font-weight:600;
}
.hero h1{
  font-size:30px;margin:0 0 8px;letter-spacing:-.02em;
  background:linear-gradient(120deg,var(--brand),var(--brand-2));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{margin:0;color:var(--ink-2);font-size:14.5px}

.card{
  background:var(--card);border-radius:var(--radius);
  padding:20px;box-shadow:var(--shadow);margin-bottom:14px;
}
.intro-card{padding:6px 20px}
.intro-item{display:flex;gap:14px;align-items:flex-start;padding:14px 0;border-bottom:1px solid var(--line)}
.intro-item:last-child{border-bottom:none}
.intro-icon{font-size:20px;line-height:1.4}
.intro-item strong{display:block;font-size:15px;margin-bottom:2px}
.intro-item p{margin:0;font-size:13px;color:var(--ink-3)}

.dims{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin:18px 0 24px}
.dim-chip{
  font-size:12.5px;color:var(--ink-2);background:#fff;border:1px solid var(--line);
  padding:6px 12px;border-radius:999px;
}
.dim-chip b{color:var(--brand);font-weight:700}
.dim-chip span{color:var(--ink-3);margin:0 2px}

.btn{
  border:none;border-radius:14px;font-size:16px;font-weight:600;
  padding:15px 22px;cursor:pointer;font-family:inherit;
  transition:transform .12s ease,box-shadow .2s ease,background .2s ease;
}
.btn:active{transform:scale(.985)}
.btn-primary{
  color:#fff;background:linear-gradient(120deg,var(--brand),var(--brand-2));
  box-shadow:0 8px 20px rgba(79,110,247,.28);
}
.btn-ghost{background:#fff;color:var(--ink-2);border:1px solid var(--line)}
.btn-block{display:block;width:100%}
.tiny-note{font-size:12px;color:var(--ink-3);line-height:1.6;margin:14px 2px 0}
.tiny-note.center{text-align:center}

/* ---------- 答题 ---------- */
.quiz-head{display:flex;align-items:center;gap:12px;padding:18px 0 8px}
.icon-btn{
  width:38px;height:38px;flex:0 0 38px;border-radius:12px;border:1px solid var(--line);
  background:#fff;font-size:17px;color:var(--ink-2);cursor:pointer;
}
.progress-wrap{flex:1}
.progress-bar{height:8px;background:#e5e9f5;border-radius:999px;overflow:hidden}
.progress-bar i{
  display:block;height:100%;width:0;border-radius:999px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2));
  transition:width .28s ease;
}
.progress-text{font-size:12px;color:var(--ink-3);margin-top:6px;text-align:right;font-variant-numeric:tabular-nums}

.quiz-body{padding:28px 2px 12px}
.q-index{font-size:12.5px;color:var(--brand);font-weight:600;letter-spacing:.04em;margin:0 0 10px}
.q-text{
  font-size:21px;line-height:1.55;margin:0 0 28px;font-weight:650;letter-spacing:-.01em;
  min-height:66px;
}

.options{display:flex;flex-direction:column;gap:10px}
.opt{
  display:flex;align-items:center;gap:12px;
  background:#fff;border:1.5px solid var(--line);border-radius:14px;
  padding:15px 16px;font-size:15px;color:var(--ink);font-family:inherit;
  cursor:pointer;text-align:left;transition:all .16s ease;
}
.opt:active{transform:scale(.99)}
.opt-dot{
  width:18px;height:18px;border-radius:50%;border:2px solid #cfd6e8;flex:0 0 18px;
  transition:all .16s ease;
}
.opt.selected{
  border-color:var(--brand);background:var(--brand-soft);color:var(--brand);
  font-weight:600;
}
.opt.selected .opt-dot{border-color:var(--brand);background:var(--brand);box-shadow:inset 0 0 0 3px #fff}

.quiz-foot{display:flex;align-items:center;justify-content:space-between;padding:18px 0 0;gap:12px}
.quiz-foot .btn{padding:12px 18px;font-size:14.5px}
.foot-hint{font-size:12px;color:var(--ink-3)}

/* ---------- 结果 ---------- */
.result-hero{text-align:center;padding:36px 0 22px}
.result-badge{
  display:inline-block;font-size:34px;font-weight:800;letter-spacing:.12em;
  color:#fff;padding:12px 26px;border-radius:18px;
  background:linear-gradient(120deg,var(--brand),var(--brand-2));
  box-shadow:0 10px 26px rgba(79,110,247,.3);
  font-variant-numeric:tabular-nums;
}
.result-hero h2{margin:16px 0 6px;font-size:23px;letter-spacing:-.01em}
.result-tagline{margin:0;color:var(--ink-2);font-size:14px}

.card-title{font-size:15.5px;margin:0 0 14px;font-weight:700;letter-spacing:-.01em}
.card-accent{background:linear-gradient(180deg,#f7f9ff,#fff);border:1px solid #e6ecff}
.result-text{margin:0;font-size:14.5px;color:var(--ink-2);line-height:1.8}

.dims-chart{display:flex;flex-direction:column;gap:16px}
.dim-row{display:flex;flex-direction:column;gap:7px}
.dim-labels{display:flex;justify-content:space-between;font-size:12.5px;color:var(--ink-3);font-weight:600}
.dim-labels b{color:var(--ink);font-weight:700}
.dim-bar{
  position:relative;height:10px;border-radius:999px;background:#eef1f9;overflow:hidden;
}
.dim-bar i{
  position:absolute;top:0;bottom:0;border-radius:999px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2));
  transition:width .5s cubic-bezier(.22,1,.36,1), left .5s cubic-bezier(.22,1,.36,1);
}
.dim-bar::after{
  content:"";position:absolute;left:50%;top:-3px;bottom:-3px;width:1px;background:#d8deee;
}
.chart-note{font-size:11.5px;color:var(--ink-3);margin:14px 0 0}

.majors{display:flex;flex-direction:column;gap:10px}
.major-item{
  display:flex;gap:10px;align-items:flex-start;
  background:#fff;border:1px solid #e6ecff;border-radius:12px;padding:12px 14px;
}
.major-tag{
  flex:0 0 auto;font-size:11.5px;font-weight:700;color:var(--brand);
  background:var(--brand-soft);padding:3px 9px;border-radius:999px;margin-top:2px;
}
.major-text{font-size:14px;color:var(--ink-2);line-height:1.7}

.two-col{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.mini-title{font-size:13px;margin:0 0 8px;font-weight:700}
.mini-title.good{color:var(--good)}
.mini-title.warn{color:var(--warn)}
.bullet{margin:0;padding-left:16px;font-size:13px;color:var(--ink-2);line-height:1.85}
.bullet li{margin-bottom:3px}

.result-actions{display:flex;flex-direction:column;gap:10px;margin-top:20px}

/* ---------- Toast ---------- */
.toast{
  position:fixed;left:50%;bottom:40px;transform:translate(-50%,20px);
  background:rgba(26,31,54,.92);color:#fff;font-size:13.5px;
  padding:11px 18px;border-radius:12px;opacity:0;pointer-events:none;
  transition:all .25s ease;z-index:99;max-width:80vw;text-align:center;
}
.toast.show{opacity:1;transform:translate(-50%,0)}

@media (max-width:360px){
  .hero h1{font-size:26px}
  .q-text{font-size:19px}
  .result-badge{font-size:28px;padding:10px 20px}
  .two-col{grid-template-columns:1fr}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
}