/* =========================================================
   星图学情测评页 —— 对齐「学习小帮手」品牌（蓝紫渐变）
   ========================================================= */
:root {
  --lp-bg: #F3F6FC;
  --lp-card: #FFFFFF;
  --lp-border: rgba(20, 50, 110, 0.13);
  --lp-text: #1D2129;
  --lp-text-2: #4E5969;
  --lp-text-3: #86909C;
  --lp-primary: #2563EB;
  --lp-purple: #7C3AED;
  --lp-grad: linear-gradient(90deg, #2563EB, #7C3AED);
  --lp-grad-soft: linear-gradient(135deg, rgba(37, 99, 235, 0.10), rgba(124, 58, 237, 0.10));
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body.ev-body {
  font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Segoe UI', -apple-system, sans-serif;
  color: var(--lp-text); background: var(--lp-bg); min-height: 100vh; line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  background-image:
    radial-gradient(900px 520px at 12% 0%, rgba(37, 99, 235, 0.06), transparent 62%),
    radial-gradient(900px 520px at 88% 6%, rgba(124, 58, 237, 0.05), transparent 62%);
}
.ev-top { display: flex; align-items: center; gap: 12px; padding: 16px 22px; border-bottom: 1px solid rgba(20, 50, 110, 0.08); }
.ev-brand { display: inline-flex; align-items: center; gap: 8px; font-weight: 800; letter-spacing: 0.06em; font-size: 16px; }
.ev-mark { width: 30px; height: 30px; border-radius: 9px; display: grid; place-items: center; background: var(--lp-grad); color: #fff; box-shadow: 0 4px 14px rgba(37, 99, 235, 0.28); }
.ev-back { margin-left: auto; font-size: 13px; color: var(--lp-text-2); padding: 6px 12px; border-radius: 999px; border: 1px solid var(--lp-border); transition: .18s; }
.ev-back:hover { color: var(--lp-primary); border-color: var(--lp-primary); }
.ev-root { width: min(720px, calc(100% - 36px)); margin: 0 auto; padding: 34px 0 60px; }
.ev-screen { animation: evIn .28s ease; }
@keyframes evIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

/* ---------- 进入/同步 ---------- */
.ev-sync { display: grid; place-items: center; min-height: 58vh; text-align: center; }
.ev-ring { width: 64px; height: 64px; border-radius: 50%; margin: 0 auto 22px; position: relative; background: var(--lp-grad-soft); }
.ev-spin { position: absolute; inset: 0; border-radius: 50%; border: 3px solid transparent; border-top-color: var(--lp-primary); border-right-color: var(--lp-purple); animation: evSpin .9s linear infinite; }
@keyframes evSpin { to { transform: rotate(360deg); } }
.ev-sync-t { font-size: 22px; font-weight: 800; }
.ev-sync-s { color: var(--lp-text-2); margin-top: 8px; font-size: 14px; }
.ev-bar { width: 180px; height: 5px; border-radius: 999px; background: #E5E6EB; margin: 20px auto 18px; overflow: hidden; }
.ev-bar i { display: block; height: 100%; width: 30%; border-radius: 999px; background: var(--lp-grad); animation: evLoad 2s ease forwards; }
@keyframes evLoad { from { width: 8%; } to { width: 100%; } }
.ev-link { font-size: 14px; font-weight: 700; color: var(--lp-primary); margin-top: 6px; }

/* ---------- 选学段 ---------- */
.ev-head { text-align: center; margin-bottom: 26px; }
.ev-head h1 { font-size: 24px; font-weight: 800; }
.ev-head p { color: var(--lp-text-2); margin-top: 8px; }
.ev-stages { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.ev-stage-card { text-align: left; background: var(--lp-card); border: 1px solid var(--lp-border); border-radius: 16px; padding: 18px; cursor: pointer; transition: .2s; position: relative; }
.ev-stage-card:hover { transform: translateY(-3px); box-shadow: 0 10px 30px rgba(20, 50, 110, 0.12); border-color: var(--sc); }
.ev-sc-tag { font-size: 11px; font-weight: 700; letter-spacing: 0.1em; color: var(--sc); }
.ev-sc-name { font-size: 18px; font-weight: 800; margin-top: 6px; }
.ev-sc-age { font-size: 12px; color: var(--lp-text-3); margin-top: 3px; }
.ev-sc-desc { font-size: 12.5px; color: var(--lp-text-2); margin-top: 10px; line-height: 1.5; }
.ev-sc-go { display: inline-flex; align-items: center; gap: 5px; margin-top: 12px; font-size: 13px; font-weight: 700; color: var(--sc); }
.ev-sc-go i { width: 7px; height: 7px; border-top: 2px solid currentColor; border-right: 2px solid currentColor; transform: rotate(45deg); }

/* ---------- 答题 ---------- */
.ev-progress { height: 6px; border-radius: 999px; background: #E5E6EB; overflow: hidden; margin-bottom: 18px; }
.ev-progress i { display: block; height: 100%; border-radius: 999px; background: var(--lp-grad); transition: width .3s; }
.ev-qmeta { font-size: 12.5px; color: var(--lp-text-3); font-weight: 600; margin-bottom: 8px; }
.ev-q { font-size: 19px; font-weight: 700; line-height: 1.5; margin-bottom: 20px; }
.ev-opts { display: flex; flex-direction: column; gap: 12px; }
.ev-opt { display: flex; align-items: center; gap: 12px; width: 100%; text-align: left; background: var(--lp-card); border: 1.5px solid var(--lp-border); border-radius: 14px; padding: 14px 16px; font-size: 15px; transition: .15s; }
.ev-opt:hover { border-color: var(--lp-primary); background: rgba(37, 99, 235, 0.04); }
.ev-opt.on { border-color: var(--lp-primary); background: rgba(37, 99, 235, 0.08); }
.ev-opt.ok { border-color: #16A34A; background: rgba(22, 163, 74, 0.10); }
.ev-opt.no { border-color: #DC2626; background: rgba(220, 38, 38, 0.08); }
.ev-opt-ix { width: 26px; height: 26px; flex: none; border-radius: 8px; background: rgba(20, 50, 110, 0.07); display: grid; place-items: center; font-weight: 700; font-size: 13px; color: var(--lp-text-2); }
.ev-opt.on .ev-opt-ix, .ev-opt.ok .ev-opt-ix, .ev-opt.no .ev-opt-ix { background: var(--lp-grad); color: #fff; }
.ev-qnav { display: flex; justify-content: space-between; align-items: center; margin-top: 24px; gap: 12px; }

/* ---------- 按钮 ---------- */
.ev-btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 26px; border-radius: 999px; font-size: 14px; font-weight: 700; background: var(--lp-grad); color: #fff; box-shadow: 0 6px 18px rgba(37, 99, 235, 0.28); transition: .2s; }
.ev-btn:hover { transform: translateY(-2px); filter: brightness(1.06); }
.ev-btn:disabled { opacity: .45; cursor: not-allowed; transform: none; filter: none; box-shadow: none; }
.ev-btn.ghost { background: #fff; color: var(--lp-text); border: 1px solid var(--lp-border); box-shadow: 0 2px 8px rgba(20, 50, 110, 0.06); }
.ev-btn.ghost:hover { border-color: var(--lp-primary); color: var(--lp-primary); }
.ev-btn.big { width: 100%; padding: 15px; font-size: 15px; }

/* ---------- 报告 ---------- */
.ev-rep-head { display: flex; align-items: center; gap: 16px; background: var(--lp-grad-soft); border: 1px solid var(--lp-border); border-radius: 18px; padding: 18px; }
.ev-rep-badge { width: 64px; height: 64px; flex: none; border-radius: 18px; display: grid; place-items: center; font-size: 20px; font-weight: 800; color: #fff; background: var(--bc); box-shadow: 0 8px 20px rgba(20, 50, 110, 0.18); }
.ev-rep-h { font-size: 18px; font-weight: 800; }
.ev-rep-sub { font-size: 13px; color: var(--lp-text-2); margin-top: 4px; }
.ev-rep-d { background: #fff; border: 1px solid var(--lp-border); border-radius: 14px; padding: 14px 16px; margin-top: 16px; font-size: 14px; color: var(--lp-text); }
.ev-rep-sec { margin-top: 18px; }
.ev-rs-t { font-size: 13px; font-weight: 700; color: var(--lp-text); margin-bottom: 10px; padding-left: 9px; border-left: 3px solid var(--lp-primary); }
.ev-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.ev-tag { font-size: 13px; padding: 6px 12px; border-radius: 999px; font-weight: 600; }
.ev-tag.weak { background: rgba(220, 38, 38, 0.10); color: #DC2626; border: 1px solid rgba(220, 38, 38, 0.25); }
.ev-tag.ok { background: rgba(22, 163, 74, 0.10); color: #16A34A; border: 1px solid rgba(22, 163, 74, 0.25); }
.ev-rec { background: #fff; border: 1px solid var(--lp-border); border-radius: 14px; padding: 14px 16px; font-size: 14px; line-height: 1.7; }
.ev-rep-cta { display: flex; flex-direction: column; gap: 12px; margin-top: 24px; }
.ev-rep-note { font-size: 11.5px; color: var(--lp-text-3); text-align: center; margin-top: 16px; }

@media (max-width: 560px) {
  .ev-stages { grid-template-columns: 1fr; }
  .ev-root { width: calc(100% - 28px); padding-top: 24px; }
}