/* ==========================================================================
   上岸拆解卡 · 设计系统 v2.0
   墨蓝 × 靛蓝 × 鎏金 —— 精致 · 克制 · 高级
   ========================================================================== */

/* ---------- 设计令牌 ---------- */
:root {
  /* 色板 */
  --ink: #1b2340;            /* 主墨色 */
  --ink-2: #3a4560;
  --ink-deep: #131a30;       /* 深层背景墨 */
  --primary: #4361ee;        /* 靛蓝主色 */
  --primary-d: #3350c9;
  --primary-soft: #eef2ff;
  --primary-line: #d8e0fb;
  --gold: #e8b04b;
  --gold-deep: #c9922e;
  --gold-soft: #fdf6e7;
  --gold-line: #f0dcb4;
  --bg: #f2f4f9;
  --surface: #ffffff;
  --text: #26314b;
  --text-2: #4a5670;
  --muted: #7d89a0;
  --line: #e7ebf3;
  --line-strong: #d9dfec;
  --danger: #d64541;
  --ok: #2fa46a;

  /* 几何 */
  --radius: 16px;
  --radius-sm: 11px;
  --radius-xs: 8px;

  /* 阴影（分层） */
  --shadow-xs: 0 1px 2px rgba(27, 35, 64, .05);
  --shadow-sm: 0 2px 6px rgba(27, 35, 64, .06), 0 1px 2px rgba(27, 35, 64, .04);
  --shadow-md: 0 6px 18px rgba(27, 35, 64, .08), 0 2px 5px rgba(27, 35, 64, .05);
  --shadow-lg: 0 18px 44px rgba(27, 35, 64, .14), 0 4px 12px rgba(27, 35, 64, .06);
  --shadow-primary: 0 6px 16px rgba(67, 97, 238, .32);
  --shadow-gold: 0 6px 16px rgba(232, 176, 75, .38);

  /* 动效 */
  --ease: cubic-bezier(.33, 1, .68, 1);
}

/* ---------- 基础 ---------- */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
body {
  font-family: -apple-system, "PingFang SC", "HarmonyOS Sans SC", "MiSans", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4 { font-weight: 700; color: var(--ink); letter-spacing: .01em; }
.must { color: var(--danger); font-weight: 600; }
.msg { color: var(--danger); font-size: 13px; min-height: 18px; }
.hint { font-size: 12px; color: var(--muted); margin-top: 8px; }
::selection { background: rgba(67, 97, 238, .18); }

/* 键盘可见焦点（WCAG AA） */
:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; border-radius: 6px; }
button:focus:not(:focus-visible), input:focus:not(:focus-visible), select:focus:not(:focus-visible), textarea:focus:not(:focus-visible) { outline: none; }

/* 滚动条 */
::-webkit-scrollbar { width: 9px; height: 9px; }
::-webkit-scrollbar-thumb { background: #c3cbdd; border-radius: 8px; border: 2px solid transparent; background-clip: content-box; }
::-webkit-scrollbar-thumb:hover { background: #a7b2cc; background-clip: content-box; border: 2px solid transparent; }
::-webkit-scrollbar-track { background: transparent; }

/* ---------- 登录 / 落地页 ---------- */
.auth-wrap {
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  padding: 24px 24px;
  background:
    radial-gradient(1100px 520px at 8% -10%, rgba(67, 97, 238, .14), transparent 60%),
    radial-gradient(900px 480px at 100% 0%, rgba(232, 176, 75, .13), transparent 55%),
    radial-gradient(800px 600px at 50% 115%, rgba(67, 97, 238, .08), transparent 60%),
    linear-gradient(165deg, #f7f9ff 0%, #eef1f8 48%, #e9edf7 100%);
  position: relative;
  overflow: hidden;
}
.auth-wrap::before, .auth-wrap::after {
  content: ""; position: absolute; border-radius: 50%; pointer-events: none;
}
.auth-wrap::before {
  width: 420px; height: 420px; top: -160px; right: -120px;
  background: radial-gradient(circle at 30% 30%, rgba(67, 97, 238, .12), transparent 70%);
}
.auth-wrap::after {
  width: 520px; height: 520px; bottom: -220px; left: -160px;
  background: radial-gradient(circle at 60% 40%, rgba(232, 176, 75, .10), transparent 70%);
}

.landing {
  display: flex; gap: 56px; align-items: center;
  max-width: 1020px; margin: 0 auto; position: relative; z-index: 1;
}
.landing-left { flex: 1.25; }
.landing-left .brand {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--primary); font-weight: 800; font-size: 14px;
  letter-spacing: 3px; margin-bottom: 12px;
  padding: 7px 16px; border-radius: 999px;
  background: rgba(255, 255, 255, .72); border: 1px solid var(--primary-line);
  box-shadow: var(--shadow-xs);
  backdrop-filter: blur(6px);
}
.landing-left .brand::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%;
  background: var(--gold); box-shadow: 0 0 0 3px rgba(232, 176, 75, .22);
}
.landing-left h1 {
  font-size: 38px; line-height: 1.22; letter-spacing: .01em;
  margin-bottom: 13px;
  background: linear-gradient(120deg, var(--ink) 30%, var(--primary-d) 85%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: var(--ink);
}
.landing-left .lead { color: var(--text-2); font-size: 15px; margin-bottom: 14px; }
.sell { list-style: none; display: flex; flex-direction: column; gap: 7px; margin-bottom: 11px; max-width: 480px; }
.sell li {
  display: flex; align-items: flex-start; gap: 11px;
  font-size: 13.5px; color: var(--text-2); line-height: 1.62;
  background: rgba(255, 255, 255, .66); border: 1px solid rgba(216, 224, 251, .8);
  border-radius: var(--radius-sm); padding: 8px 13px;
  backdrop-filter: blur(8px);
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s;
}
.sell li:hover { transform: translateX(4px); box-shadow: var(--shadow-sm); border-color: var(--primary-line); }
.sell b { display: block; color: var(--ink); margin-bottom: 1px; font-size: 13.5px; }
.sell-ico {
  flex: none; display: inline-flex; align-items: center; justify-content: center;
  width: 30px; height: 30px; margin-top: 2px; border-radius: 9px;
  background: linear-gradient(135deg, var(--primary-soft), rgba(27, 35, 64, .06));
  color: var(--primary); border: 1px solid rgba(67, 97, 238, .16);
}
.sell-body { flex: 1; }

/* 价值锚点条：单行能力线 */
.value-strip {
  display: flex; flex-wrap: wrap; align-items: center;
  gap: 2px 0; margin-bottom: 12px; max-width: 500px;
  font-size: 11px; color: var(--muted); line-height: 1.9;
}
.value-strip span { display: inline-flex; align-items: baseline; gap: 3px; }
.value-strip span + span::before {
  content: "·"; color: rgba(203, 148, 44, .75); margin: 0 6px; font-weight: 700;
}
.value-strip b { color: var(--text-2); font-weight: 700; }

/* 核心玩法 CTA：成为出题人（浅色香槟金，与整页浅色玻璃同系） */
.setter-cta {
  position: relative; overflow: hidden; max-width: 480px;
  background: linear-gradient(135deg, rgba(232, 176, 75, .16), rgba(255, 255, 255, .72) 52%, rgba(67, 97, 238, .07));
  border: 1px solid rgba(203, 148, 44, .42);
  border-radius: var(--radius); padding: 14px 16px 12px;
  box-shadow: 0 12px 30px rgba(203, 148, 44, .16), inset 0 1px 0 rgba(255, 255, 255, .85);
  backdrop-filter: blur(8px);
  margin-bottom: 0;
}
.setter-glow {
  position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(200px 120px at 90% -12%, rgba(232, 176, 75, .20), transparent 70%),
    radial-gradient(170px 110px at -6% 112%, rgba(67, 97, 238, .12), transparent 70%);
}
.setter-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 6px; position: relative; }
.setter-badge {
  display: inline-flex; align-items: center; gap: 7px;
  color: #9c6a0d; font-weight: 800; font-size: 15px; letter-spacing: .04em;
}
.setter-tag {
  font-size: 11px; font-weight: 700; color: #9c6a0d;
  border: 1px solid rgba(203, 148, 44, .5); border-radius: 999px;
  padding: 2px 10px; letter-spacing: .08em;
  background: rgba(232, 176, 75, .16);
}
.setter-copy { color: var(--text-2); font-size: 13px; line-height: 1.62; margin: 0 0 10px; position: relative; }
.setter-copy b { color: var(--ink); }
.setter-foot { display: flex; flex-direction: column; align-items: stretch; gap: 7px; position: relative; }
.setter-btn {
  display: flex; align-items: center; justify-content: center; gap: 7px;
  width: 100%;
  padding: 10px 18px; border: none; cursor: pointer; font-family: inherit;
  background: linear-gradient(135deg, #f2c268, var(--gold));
  color: #3d2c05; font-size: 14.5px; font-weight: 800; letter-spacing: .03em;
  border-radius: 10px; box-shadow: 0 6px 18px rgba(232, 176, 75, .38);
  transition: transform .18s var(--ease), box-shadow .18s var(--ease), filter .18s;
}
.setter-btn:hover { transform: translateY(-1.5px); filter: brightness(1.05); box-shadow: 0 9px 24px rgba(232, 176, 75, .48); }
.setter-btn:active { transform: translateY(0); }
.setter-arrow { transition: transform .18s var(--ease); }
.setter-btn:hover .setter-arrow { transform: translateX(3px); }
.setter-meta { font-size: 11.5px; color: var(--muted); line-height: 1.5; text-align: center; }

/* 登录卡页脚：流程 + 安全承诺 */
.auth-foot { margin-top: 18px; padding-top: 14px; border-top: 1px solid var(--line); text-align: center; }
.af-steps { font-size: 11.5px; color: var(--text-2); font-weight: 600; letter-spacing: .02em; }
.af-steps i { font-style: normal; color: var(--muted); margin: 0 2px; }
.af-trust { font-size: 11px; color: var(--muted); margin-top: 8px; line-height: 1.65; }


.auth-col { flex: 0 0 372px; display: flex; flex-direction: column; gap: 12px; }
.auth-box {
  background: rgba(255, 255, 255, .88);
  backdrop-filter: blur(14px);
  padding: 30px 30px; border-radius: 20px; width: 100%;
  border: 1px solid rgba(255, 255, 255, .9);
  box-shadow: var(--shadow-lg);
}
.auth-box h1 { font-size: 22px; text-align: center; }
.auth-box .sub { text-align: center; color: var(--muted); font-size: 13px; margin: 6px 0 18px; }
.tabs {
  display: flex; gap: 6px; margin-bottom: 20px;
  background: #eef1f8; padding: 4px; border-radius: 12px;
}
.auth-box .tabs button {
  flex: 1; width: auto; padding: 9px; border: none; background: transparent;
  cursor: pointer; border-radius: 9px; font-size: 14px; font-weight: 600;
  color: var(--muted); box-shadow: none; letter-spacing: 0;
  transition: all .2s var(--ease); font-family: inherit;
}
.auth-box .tabs button:hover { color: var(--primary); filter: none; transform: none; }
.auth-box .tabs button.active {
  background: var(--surface); color: var(--primary);
  box-shadow: var(--shadow-sm); transform: none; filter: none;
}
.auth-box input {
  width: 100%; padding: 13px 14px; margin-bottom: 12px;
  border: 1.5px solid var(--line-strong); border-radius: 10px;
  font-size: 14px; font-family: inherit; background: var(--surface);
  transition: border-color .2s, box-shadow .2s; color: var(--text);
}
.auth-box input::placeholder { color: #a5aec2; }
.auth-box input:focus {
  outline: none; border-color: var(--primary);
  box-shadow: 0 0 0 3.5px rgba(67, 97, 238, .14);
}
.auth-hint { margin: 2px 2px 8px; font-size: 12px; color: #8a93a8; line-height: 1.45; }

/* ---------- 导出 PDF（打印视图） ---------- */
#printArea { display: none; }
@media print {
  @page { margin: 12mm; }
  body { background: #fff; }
  body > *:not(#printArea) { display: none !important; }
  #printArea { display: block !important; color: #111; font-size: 13px; line-height: 1.6; }
  .pdf-head { border-bottom: 2px solid #333; padding-bottom: 8px; margin-bottom: 14px; }
  .pdf-head h1 { font-size: 20px; margin: 0 0 4px; }
  .pdf-meta { color: #555; font-size: 12px; }
  .pdf-card { border: 1px solid #ccc; border-radius: 8px; padding: 12px 14px; margin: 0 0 14px; page-break-inside: avoid; }
  .pdf-card-h { font-weight: 700; margin-bottom: 6px; display: flex; gap: 8px; align-items: baseline; flex-wrap: wrap; }
  .pdf-idx { background: #333; color: #fff; border-radius: 4px; padding: 1px 7px; font-size: 12px; }
  .pdf-mod { color: #2563eb; }
  .pdf-date { color: #888; font-size: 12px; margin-left: auto; }
  .pdf-q { margin: 4px 0; }
  .pdf-imgs { margin: 6px 0; }
  .pdf-imgs img { max-width: 100%; height: auto; border: 1px solid #eee; border-radius: 4px; display: block; margin: 4px 0; }
  .pdf-opt, .pdf-ans, .pdf-f { margin: 3px 0; }
  .pdf-detail { margin-top: 6px; padding-top: 6px; border-top: 1px dashed #ddd; }
}
.auth-box button {
  width: 100%; padding: 12px; border: none; cursor: pointer;
  background: linear-gradient(135deg, #4c6bf5, var(--primary-d));
  color: #fff; border-radius: 10px; cursor: pointer; font-size: 15px; font-weight: 700;
  font-family: inherit; letter-spacing: .06em;
  box-shadow: var(--shadow-primary);
  transition: transform .18s var(--ease), box-shadow .18s, filter .18s;
}
.auth-box button:hover { transform: translateY(-1px); filter: brightness(1.06); box-shadow: 0 9px 22px rgba(67, 97, 238, .4); }
.auth-box button:active { transform: translateY(0); }
.auth-box .hint { text-align: center; }

.auth-facts {
  list-style: none; margin: 0; padding: 14px 16px;
  display: flex; flex-direction: column; gap: 9px;
  background: rgba(255, 255, 255, .55); border: 1px solid rgba(216, 224, 251, .85);
  border-radius: var(--radius); backdrop-filter: blur(6px);
  box-shadow: var(--shadow-xs);
}
.auth-facts li {
  display: flex; align-items: flex-start; gap: 8px;
  font-size: 12px; color: var(--text-2); line-height: 1.55;
}
.af-ck {
  flex: none; display: inline-flex; align-items: center; justify-content: center;
  width: 15px; height: 15px; margin-top: 1.5px; border-radius: 50%;
  background: rgba(203, 148, 44, .16); color: #9c6a0d;
  font-size: 9.5px; font-weight: 800; line-height: 1;
}

/* ---------- 顶栏 ---------- */
header {
  background: linear-gradient(120deg, #171f38 0%, #1f2c55 55%, #2b3c74 100%);
  color: #fff; padding: 12px 22px;
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  box-shadow: 0 2px 14px rgba(19, 26, 48, .28);
  position: sticky; top: 0; z-index: 500;
}
header strong {
  font-size: 16px; letter-spacing: 2px;
  background: linear-gradient(90deg, #fff, #c9d6ff);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
header #who { font-size: 13px; opacity: .85; }
header button {
  background: rgba(255, 255, 255, .12); color: #fff; border: 1px solid rgba(255, 255, 255, .18);
  padding: 7px 14px; border-radius: 9px; cursor: pointer;
  font-size: 13px; font-family: inherit; font-weight: 500;
  transition: all .18s var(--ease); backdrop-filter: blur(4px);
}
header button:hover { background: rgba(255, 255, 255, .22); transform: translateY(-1px); }
header #shareUrl { font-size: 12px; opacity: .75; }

/* ---------- 主布局 ---------- */
.layout { display: flex; align-items: stretch; }
.sidebar {
  width: 192px; flex: 0 0 192px;
  background: linear-gradient(180deg, #171f38 0%, #1c2747 70%, #202d52 100%);
  min-height: calc(100vh - 53px);
  padding: 16px 10px;
  display: flex; flex-direction: column; gap: 4px;
}
.sidebar .nav-item {
  color: #b9c4e0; padding: 11px 14px; border-radius: 10px; cursor: pointer;
  font-size: 14px; user-select: none; position: relative;
  transition: all .18s var(--ease);
  border: 1px solid transparent;
}
.sidebar .nav-item:hover { background: rgba(255, 255, 255, .07); color: #fff; }
.sidebar .nav-item.active {
  background: linear-gradient(120deg, #4c6bf5, #3d5ae0);
  color: #fff; font-weight: 600;
  box-shadow: 0 4px 14px rgba(67, 97, 238, .4);
  border-color: rgba(255, 255, 255, .14);
}
.content { flex: 1; min-width: 0; }
.view { display: none; }
#view-workbench { display: block; }

/* ---------- 面板 ---------- */
.panel {
  background: var(--surface); margin: 12px; padding: 20px;
  border-radius: var(--radius); border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
}
.panel ul { list-style: none; }
.panel li { display: flex; align-items: center; gap: 10px; padding: 8px 0; border-bottom: 1px solid var(--line); }
.panel hr { border: none; border-top: 1px dashed var(--line-strong); margin: 12px 0; }

/* ---------- 按钮 ---------- */
.btn-primary {
  background: linear-gradient(135deg, #4c6bf5, var(--primary-d));
  color: #fff; border: none; padding: 11px 20px; border-radius: 11px;
  font-weight: 700; cursor: pointer; font-size: 14px; white-space: nowrap;
  font-family: inherit; box-shadow: var(--shadow-primary);
  transition: transform .18s var(--ease), box-shadow .18s, filter .18s;
}
.btn-primary:hover { transform: translateY(-1px); filter: brightness(1.06); box-shadow: 0 9px 24px rgba(67, 97, 238, .42); }
.btn-primary:active { transform: translateY(0); }
.btn-back {
  margin: 14px 12px 0;
  background: var(--surface); border: 1px solid var(--line-strong); color: var(--primary);
  padding: 7px 16px; border-radius: 10px; cursor: pointer; font-family: inherit;
  font-size: 13px; font-weight: 600; box-shadow: var(--shadow-xs);
  transition: all .18s var(--ease);
}
.btn-back:hover { border-color: var(--primary-line); background: var(--primary-soft); transform: translateX(-2px); }
.btn-gold {
  background: linear-gradient(135deg, #f0be5c, var(--gold-deep));
  color: #3a2a06; border: none; padding: 9px 18px; border-radius: 11px;
  font-weight: 700; cursor: pointer; font-size: 13px; white-space: nowrap;
  font-family: inherit; box-shadow: var(--shadow-gold);
  transition: transform .18s var(--ease), filter .18s;
}
.btn-gold:hover { transform: translateY(-1px); filter: brightness(1.05); }
.link-btn {
  margin-top: 8px; background: none; border: none; color: var(--primary);
  cursor: pointer; padding: 0; font-size: 13px; font-weight: 600; font-family: inherit;
  transition: color .15s;
}
.link-btn:hover { color: var(--primary-d); text-decoration: underline; text-underline-offset: 3px; }

/* ---------- 学习主页 ---------- */
.hero {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  background:
    radial-gradient(420px 200px at 92% -30%, rgba(232, 176, 75, .25), transparent 60%),
    radial-gradient(560px 260px at 8% 130%, rgba(90, 130, 255, .35), transparent 65%),
    linear-gradient(120deg, #1a2340 0%, #273a70 55%, #3350c9 100%);
  color: #fff; padding: 24px 26px; border-radius: var(--radius);
  margin: 14px 12px 0; box-shadow: var(--shadow-md);
  position: relative; overflow: hidden;
}
.hero::after {
  content: ""; position: absolute; right: 88px; top: -40px;
  width: 150px; height: 150px; border-radius: 50%;
  border: 1.5px solid rgba(255, 255, 255, .12); pointer-events: none;
}
.hero h2 { font-size: 21px; color: #fff; letter-spacing: .02em; }
.hero-sub { color: rgba(255, 255, 255, .78); font-size: 13px; margin-top: 5px; }
.hero .btn-primary {
  background: linear-gradient(135deg, #ffd975, #f0b13e);
  color: #33260a; box-shadow: var(--shadow-gold);
}
.hero .btn-primary:hover { filter: brightness(1.05); box-shadow: 0 9px 24px rgba(232, 176, 75, .45); }

.entry-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; padding: 12px; }
.entry-card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 18px 16px; cursor: pointer;
  box-shadow: var(--shadow-xs);
  transition: transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s;
}
.entry-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-line);
}
.ec-ico {
  width: 44px; height: 44px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; background: linear-gradient(135deg, var(--primary-soft), #e3ebff);
  border: 1px solid var(--primary-line); margin-bottom: 10px;
  transition: transform .22s var(--ease);
}
.entry-card:hover .ec-ico { transform: scale(1.08) rotate(-4deg); }
.ec-t { font-weight: 700; margin: 0 0 4px; color: var(--ink); font-size: 15px; }
.ec-d { font-size: 12px; color: var(--muted); line-height: 1.55; }

.feat-panel { background: linear-gradient(120deg, #fff 55%, #f4f8ff); }
.feat-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.feat-head h3 { margin: 0; font-size: 15px; }
.feat { font-size: 13px; }
.feat-card { border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 14px; background: #fff; box-shadow: var(--shadow-xs); }
.feat-card .meta { margin-bottom: 6px; }
.feat-card .q { color: var(--text); }

.home-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; padding: 0 12px; }
.home-stats .stat-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.mini-stat {
  background: linear-gradient(160deg, #f8faff, #f1f4fc);
  border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 14px 10px; text-align: center;
  transition: transform .2s var(--ease), box-shadow .2s;
}
.mini-stat:hover { transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.mini-stat b { display: block; font-size: 26px; font-weight: 800; line-height: 1.15; color: var(--primary); font-variant-numeric: tabular-nums; }
.mini-stat span { font-size: 12px; color: var(--muted); }
.flame b {
  color: #e0662a !important;
  background: linear-gradient(120deg, #f0762a, #e0a93b);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.home-sub {
  font-size: 12px; color: var(--muted); margin-top: 14px;
  padding-top: 12px; border-top: 1px dashed var(--line-strong);
}
.module-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.mc {
  display: flex; align-items: center; justify-content: space-between; gap: 6px;
  background: #f8faff; border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 11px 13px; cursor: pointer;
  transition: all .18s var(--ease);
}
.mc:hover { background: var(--primary-soft); border-color: var(--primary-line); transform: translateY(-1px); }
.mc-top { display: flex; align-items: center; justify-content: space-between; }
.mc-name { font-size: 13px; color: var(--text); font-weight: 600; }
.mc-sub { font-size: 11px; color: var(--muted); margin-top: 3px; line-height: 1.45; }
.mc-num {
  font-size: 13px; font-weight: 700; color: var(--primary);
  background: var(--primary-soft); border-radius: 999px; padding: 1px 9px;
  font-variant-numeric: tabular-nums; flex-shrink: 0;
}
.recent { display: flex; flex-direction: column; gap: 8px; }
.rc {
  background: #f8faff; border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 11px 14px; cursor: pointer;
  transition: all .18s var(--ease);
}
.rc:hover { background: var(--primary-soft); border-color: var(--primary-line); transform: translateX(3px); }
.rc-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 3px; gap: 8px; }
.rc-u { font-size: 12px; color: var(--muted); flex-shrink: 0; }
.rc-q { font-size: 13px; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* ---------- 表单 ---------- */
form label {
  display: block; font-size: 13px; margin: 14px 0 6px;
  color: var(--ink-2); font-weight: 600;
}
form input, form select, form textarea {
  width: 100%; padding: 10px 12px;
  border: 1.5px solid var(--line-strong); border-radius: 10px;
  font-size: 14px; font-family: inherit; background: var(--surface);
  color: var(--text); transition: border-color .2s, box-shadow .2s;
}
form input:focus, form select:focus, form textarea:focus {
  outline: none; border-color: var(--primary);
  box-shadow: 0 0 0 3.5px rgba(67, 97, 238, .13);
}
form textarea { min-height: 60px; resize: vertical; line-height: 1.7; }
#fQuestion { resize: none; overflow: hidden; min-height: 96px; }
form button[type=submit] {
  margin-top: 16px; width: 100%; padding: 13px; cursor: pointer;
  background: linear-gradient(135deg, #4c6bf5, var(--primary-d));
  color: #fff; border: none; border-radius: 11px;
  font-size: 15px; font-weight: 700; font-family: inherit; letter-spacing: .05em;
  box-shadow: var(--shadow-primary);
  transition: transform .18s var(--ease), filter .18s;
}
form button[type=submit]:hover { transform: translateY(-1px); filter: brightness(1.06); }
#fSyllabusTag {
  width: 100%; padding: 10px 12px; border: 1.5px solid var(--line-strong);
  border-radius: 10px; font-size: 14px; background: #fff; margin-bottom: 8px;
  font-family: inherit; color: var(--text); transition: border-color .2s, box-shadow .2s;
}
#fSyllabusTag:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3.5px rgba(67, 97, 238, .13); }
#fSyllabusView { min-height: 60px; }

/* ---------- 三栏旧布局 ---------- */
main { display: grid; grid-template-columns: 220px 1fr 300px; gap: 12px; padding: 12px; align-items: start; }
.col { background: var(--surface); border-radius: var(--radius); padding: 18px; border: 1px solid var(--line); box-shadow: var(--shadow-sm); }
.col h3 { margin-bottom: 12px; font-size: 15px; }
.left ul { list-style: none; }
.left li { padding: 5px 0; cursor: pointer; font-size: 14px; border-radius: 7px; transition: color .15s, padding-left .2s var(--ease); }
.left li.module { font-weight: 600; color: var(--ink); }
.left li.sub { padding-left: 18px; color: var(--text-2); font-size: 13px; }
.left li:hover { color: var(--primary); padding-left: 4px; }
.left li.module:hover, .left li.sub:hover { padding-left: 4px; }
.left button {
  margin-top: 12px; width: 100%; padding: 8px;
  border: 1px solid var(--line-strong); background: #fafbfe;
  border-radius: 9px; cursor: pointer; font-family: inherit; font-size: 13px; color: var(--text-2);
  transition: all .18s;
}
.left button:hover { border-color: var(--primary-line); color: var(--primary); background: var(--primary-soft); }

/* ---------- 题库浏览 ---------- */
.browse-cols { display: grid; grid-template-columns: 220px 1fr; gap: 12px; padding: 0 12px 14px; }
.browse-cols .col.left, .browse-cols .bottom {
  background: var(--surface); border-radius: var(--radius);
  padding: 18px; border: 1px solid var(--line); box-shadow: var(--shadow-sm);
}
.bottom { margin: 0 12px 20px; border-radius: var(--radius); padding: 18px; border: 1px solid var(--line); box-shadow: var(--shadow-sm); background: var(--surface); }
.bottom h3 { font-size: 15px; margin-bottom: 12px; }
#filterHint { font-size: 12px; color: var(--muted); font-weight: 400; }
.tagbar { display: flex; flex-wrap: wrap; gap: 7px; margin: 8px 0 14px; }
.tagchip {
  display: inline-block; padding: 3px 13px; border-radius: 999px;
  background: var(--primary-soft); color: var(--primary);
  font-size: 12px; font-weight: 600; cursor: pointer; user-select: none;
  border: 1px solid transparent;
  transition: all .16s var(--ease);
}
.tagchip:hover { background: #e2e9ff; border-color: var(--primary-line); }
.tagchip.active { background: var(--primary); color: #fff; box-shadow: 0 3px 9px rgba(67, 97, 238, .32); }
.tagchip.clear { background: #fdeeec; color: var(--danger); }
.tagchip.clear:hover { background: #f9dedb; border-color: #f3c4bf; }

#moduleSyllabus { margin: 12px 0; }
.syllabus-card {
  background: linear-gradient(120deg, #f4f8ff, #eef3ff);
  border: 1px solid #d9e4ff; border-left: 4px solid var(--primary);
  border-radius: var(--radius-sm); padding: 15px 18px; box-shadow: var(--shadow-xs);
}
.syllabus-card .sc-head { font-weight: 700; color: var(--ink); font-size: 14px; margin-bottom: 7px; }
.syllabus-card .sc-ability {
  display: inline-block; background: var(--primary); color: #fff;
  font-size: 12px; font-weight: 600; padding: 2.5px 12px; border-radius: 999px; margin-bottom: 9px;
}
.syllabus-card .sc-detail { font-size: 13px; color: var(--text); line-height: 1.75; }
.syllabus-card .sc-org { font-size: 12px; color: var(--muted); margin-top: 9px; }
.syllabus-line {
  background: #f4f8ff; border: 1px dashed #c8d7ff; border-radius: var(--radius-xs);
  padding: 9px 12px; font-size: 13px; color: #283a6b; margin-top: 9px;
}
.syllabus-line b { color: var(--primary); }
.map-card { background: #f8faff; border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 14px; margin-top: 12px; }
.map-card h4 { font-size: 14px; margin: 0 0 8px; color: var(--ink); }
.map-row {
  display: grid; grid-template-columns: 84px 1fr; gap: 6px 10px;
  padding: 7px 0; border-top: 1px dashed var(--line);
  font-size: 12px; align-items: baseline;
}
.map-row:first-of-type { border-top: none; }
.map-mod { font-weight: 700; color: var(--primary); }
.map-ability { color: var(--text); }
.map-org { grid-column: 1 / -1; color: var(--muted); }

/* ---------- 拆解卡 ---------- */
.card {
  border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 14px 16px; margin-bottom: 12px; background: var(--surface);
  box-shadow: var(--shadow-xs);
  transition: box-shadow .2s var(--ease), border-color .2s, transform .2s var(--ease);
}
.card:hover { box-shadow: var(--shadow-md); border-color: var(--line-strong); transform: translateY(-1px); }
.card .meta {
  font-size: 12px; color: var(--muted); margin-bottom: 8px;
  display: flex; gap: 10px; align-items: center; flex-wrap: wrap;
}
.card .meta .m-u, .card .meta .m-d { color: var(--muted); font-size: 12px; }
.card .meta .badge {
  background: var(--primary-soft); color: var(--primary);
  padding: 2px 10px; border-radius: 999px; font-weight: 600;
}
.card .meta .badge.discuss { background: #fff4e3; color: #c96a10; }
.card .field { font-size: 13px; margin: 4px 0; line-height: 1.7; }
.card .field b { color: var(--ink); }
.card .tags { margin-top: 8px; }
.card .del { margin-left: 0; background: none; border: none; color: var(--danger); cursor: pointer; font-size: 12px; padding: 2px 6px; border-radius: 6px; font-family: inherit; transition: background .15s; }
.card .del:hover { background: #fdeeec; }
.card .del + .del { margin-left: 0; }

/* 知识卡（先猜后揭） */
.kcard { transition: box-shadow .2s var(--ease), transform .2s var(--ease); }
.kcard:hover { box-shadow: var(--shadow-md); }
.reveal-btn {
  margin: 10px 0 2px; background: var(--primary-soft); color: var(--primary);
  border: 1px solid var(--primary-line); padding: 7px 16px;
  border-radius: 999px; cursor: pointer; font-size: 13px; font-weight: 600; font-family: inherit;
  transition: all .16s var(--ease);
}
.reveal-btn:hover { background: #e2e9ff; transform: translateY(-1px); }
.reveal { margin-top: 10px; border-top: 1px dashed var(--line-strong); padding-top: 10px; animation: slideDown .22s var(--ease); }
@keyframes slideDown { from { opacity: .3; transform: translateY(-5px); } to { opacity: 1; transform: none; } }
.fav { margin-left: auto; background: none; border: none; font-size: 17px; cursor: pointer; color: #ccd4e4; line-height: 1; padding: 2px 5px; border-radius: 6px; transition: transform .15s var(--ease), color .15s; }
.fav:hover { transform: scale(1.18); }
.fav.on { color: #e0532f; }

/* ---------- 图片上传 ---------- */
.upload-row { display: flex; align-items: center; gap: 8px; margin: 8px 0; }
.upload-row input[type=file] { flex: 1; font-size: 12px; color: var(--muted); }
.upload-row button {
  padding: 8px 14px; border: none; cursor: pointer; white-space: nowrap;
  background: linear-gradient(135deg, #4c6bf5, var(--primary-d)); color: #fff;
  border-radius: 9px; font-size: 13px; font-weight: 600; font-family: inherit;
  box-shadow: var(--shadow-xs); transition: filter .15s, transform .15s var(--ease);
}
.upload-row button:hover { filter: brightness(1.07); transform: translateY(-1px); }
.preview { display: flex; flex-wrap: wrap; gap: 9px; margin-bottom: 8px; }
.thumb { position: relative; }
.thumb img { width: 80px; height: 80px; object-fit: cover; border-radius: 9px; border: 1px solid var(--line-strong); box-shadow: var(--shadow-xs); }
.thumb button {
  position: absolute; top: -6px; right: -6px; background: var(--danger); color: #fff;
  border: none; border-radius: 50%; width: 19px; height: 19px; cursor: pointer;
  line-height: 1; padding: 0; font-size: 11px; box-shadow: var(--shadow-sm);
}
.imgs { display: flex; flex-wrap: wrap; gap: 8px; margin: 5px 0; }
.imgs img { width: 122px; border: 1px solid var(--line-strong); border-radius: 9px; cursor: zoom-in; box-shadow: var(--shadow-xs); transition: transform .18s var(--ease), box-shadow .18s; }
.imgs img:hover { transform: scale(1.03); box-shadow: var(--shadow-md); }
.imgs a.img-broken { display: inline-flex; align-items: center; padding: 6px 10px; border: 1px dashed var(--danger); border-radius: 8px; color: var(--danger); font-size: 12px; }
.imgs a.img-broken img { display: none; }
.imgs a.img-broken::after { content: '图片丢失，请重新上传'; }
.opts { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.opts > div { display: flex; align-items: center; gap: 6px; }
.opts > div > span { width: 16px; font-weight: 700; color: var(--primary); }
.opts input { flex: 1; }
.ans-row { display: flex; align-items: center; gap: 6px; margin: 4px 0 8px; font-size: 13px; color: var(--ink-2); }

/* ---------- 总览看板 ---------- */
.kpi-row { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; padding: 14px 12px; }
.stat-card {
  background: var(--surface); border-radius: var(--radius-sm); padding: 16px;
  border: 1px solid var(--line); border-top: 3px solid var(--primary);
  box-shadow: var(--shadow-sm);
  transition: transform .2s var(--ease), box-shadow .2s;
}
.stat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.stat-card .stat-val { font-size: 28px; font-weight: 800; line-height: 1.15; font-variant-numeric: tabular-nums; }
.stat-card .stat-label { font-size: 12px; color: var(--muted); margin-top: 4px; }
.stat-card.k-blue { border-top-color: var(--primary); } .stat-card.k-blue .stat-val { color: var(--primary); }
.stat-card.k-green { border-top-color: var(--ok); } .stat-card.k-green .stat-val { color: var(--ok); }
.stat-card.k-orange { border-top-color: #ef8b1f; } .stat-card.k-orange .stat-val { color: #ef8b1f; }
.stat-card.k-purple { border-top-color: #8e5cd9; } .stat-card.k-purple .stat-val { color: #8e5cd9; }
.stat-card.k-red { border-top-color: var(--danger); } .stat-card.k-red .stat-val { color: var(--danger); }

.dash-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; padding: 0 12px 16px; }
.dash-grid .panel { margin: 0; }
.group-cards { display: flex; flex-direction: column; gap: 10px; }
.group-card { background: linear-gradient(160deg, #f8faff, #f3f6fd); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 12px 14px; }
.gc-top { display: flex; justify-content: space-between; font-size: 14px; margin-bottom: 7px; }
.gc-name { font-weight: 700; color: var(--ink); } .gc-count { color: var(--muted); font-variant-numeric: tabular-nums; }
.progress { height: 8px; background: #e8edf7; border-radius: 999px; overflow: hidden; }
.progress-bar { height: 100%; background: linear-gradient(90deg, #6a8aff, var(--primary)); border-radius: 999px; transition: width .5s var(--ease); }
.member-stat { display: flex; flex-direction: column; gap: 9px; }
.ms-item { display: flex; align-items: center; gap: 9px; font-size: 14px; padding: 6px 8px; border-radius: 9px; transition: background .15s; }
.ms-item:hover { background: #f6f8fd; }
.ms-item b { font-size: 15px; font-variant-numeric: tabular-nums; }
.bar-list { display: flex; flex-direction: column; gap: 9px; }
.bar-row { display: flex; align-items: center; gap: 9px; font-size: 13px; }
.bar-label { width: 92px; flex: 0 0 92px; color: var(--text-2); }
.bar { flex: 1; height: 10px; background: #edf1f8; border-radius: 999px; overflow: hidden; }
.bar-fill { height: 100%; background: linear-gradient(90deg, #6a8aff, var(--primary)); border-radius: 999px; transition: width .5s var(--ease); }
.bar-fill.k-purple { background: linear-gradient(90deg, #b07de8, #8e5cd9); }
.bar-num { width: 32px; text-align: right; font-weight: 700; color: var(--text-2); font-variant-numeric: tabular-nums; }

/* ---------- 分组成员管理 ---------- */
.gen-row { display: flex; align-items: center; gap: 9px; flex-wrap: wrap; margin: 6px 0; }
.gen-row label { margin: 0; font-size: 13px; color: var(--ink-2); }
.gen-row select, .gen-row input {
  padding: 7px 10px; border: 1.5px solid var(--line-strong); border-radius: 9px;
  font-size: 13px; font-family: inherit; background: #fff; color: var(--text);
}
.gen-result {
  font-family: ui-monospace, "Cascadia Code", Menlo, Consolas, monospace;
  background: #f7f9fd; border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 10px 12px; margin: 8px 0; font-size: 13px; color: var(--text-2);
  white-space: normal; overflow-x: auto;
}
.gline { padding: 5px 9px; font-size: 14px; cursor: pointer; border-radius: 8px; transition: background .15s; }
.gline:hover { background: var(--primary-soft); }
.gline.active { background: #e4ebff; color: var(--primary-d); font-weight: 600; }

/* 账号表：真栅格，六列对齐 */
.gen-result .arow {
  display: grid;
  grid-template-columns: 118px minmax(96px, 1fr) 72px 126px 146px 236px;
  align-items: center; gap: 9px;
  padding: 7px 4px; font-size: 13px; border-radius: 8px;
  min-width: 720px;
}
.gen-result .arow:not(.arow-head):hover { background: #eef2fa; }
.gen-result .arow .uname {
  min-width: 0; font-family: ui-monospace, "Cascadia Code", Menlo, Consolas, monospace;
  color: var(--ink); font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.gen-result .arow .upass {
  min-width: 0; font-family: ui-monospace, "Cascadia Code", Menlo, Consolas, monospace;
  color: var(--text-2); word-break: break-all; font-size: 13px;
}
.gen-result .arow button { font-size: 12px !important; padding: 3px 9px !important; border-radius: 7px; }
.gen-result .arow .ustat { justify-self: start; }
.gen-result .arow .uexp { font-size: 12px; color: var(--text-2); }
.gen-result .arow .uactions { display: flex; gap: 6px; flex-wrap: nowrap; justify-content: flex-start; }

.gen-result .arow-head {
  font-weight: 600; color: var(--muted); border-bottom: 1px solid var(--line-strong);
  padding-bottom: 8px; margin-bottom: 2px; border-radius: 0;
  font-family: inherit; font-size: 12px; letter-spacing: .02em;
}
.gen-result .arow-head span { font-family: inherit; color: var(--muted); font-weight: 600; }
input.unote {
  width: 100%; font-size: 12px; padding: 4px 7px; border: 1px dashed #c8d2e8;
  border-radius: 7px; font-family: inherit; background: #fff; color: var(--text);
  transition: border-color .15s, background .15s;
}
input.unote:focus { outline: none; border-color: var(--primary); border-style: solid; background: #fff; }
.arow { display: flex; align-items: center; gap: 10px; padding: 4px 0; font-size: 13px; flex-wrap: wrap; }
.arow .uname { flex: 0 0 118px; min-width: 110px; font-family: ui-monospace, "Cascadia Code", Menlo, Consolas, monospace; color: var(--ink); }
.arow .upass { flex: 1; font-family: ui-monospace, "Cascadia Code", Menlo, Consolas, monospace; color: var(--text-2); word-break: break-all; }
.arow-head { font-weight: 600; color: var(--muted); border-bottom: 1px solid var(--line-strong); padding-bottom: 6px; margin-bottom: 4px; }
.arow-head .uname, .arow-head .upass, .arow-head .unote { font-family: inherit; color: var(--muted); }
.arow-head .unote { flex: 0 0 118px; width: 118px; }
.uactions { display: inline-flex; gap: 6px; }
.uexp { flex: 0 0 130px; font-size: 12px; color: var(--text-2); }
.arow-head .uexp { flex: 0 0 130px; width: 130px; color: var(--muted); }
.content button {
  font-family: inherit;
}
.content > * button, .panel > button, .panel button:not(.link-btn):not(.reveal-btn):not(.fav):not(.modal-close):not(.del):not(.btn-gold):not(.btn-primary):not(.arow-btn) {
  background: var(--surface); border: 1px solid var(--line-strong); color: var(--text-2);
  padding: 7px 14px; border-radius: 9px; cursor: pointer; font-size: 13px; font-weight: 500;
  transition: all .16s var(--ease);
}
.panel > button:hover, .panel button:not(.link-btn):not(.reveal-btn):not(.fav):not(.modal-close):not(.del):not(.btn-gold):not(.btn-primary):not(.arow-btn):hover {
  border-color: var(--primary-line); color: var(--primary); background: var(--primary-soft);
}
.arow button, .arow .arow-btn {
  font-size: 12px !important; padding: 3px 10px !important; border-radius: 7px;
}
.expire-banner { margin: 4px 0 12px; padding: 11px 16px; border-radius: var(--radius-sm); font-size: 14px; box-shadow: var(--shadow-xs); }
.exp-red { background: #fdf0ee; color: #a63a30; border: 1px solid #f5c8c0; }
.exp-yellow { background: #fdf7e3; color: #8a6d1f; border: 1px solid #efdf9e; }
.exp-green { background: #ecf9f1; color: #1e8449; border: 1px solid #b9e6cc; }
.ustat { font-size: 12px; padding: 2px 9px; border-radius: 999px; white-space: nowrap; font-weight: 600; }
.st-on { background: #e6f7ec; color: #1a8a4f; }
.st-off { background: #eff1f6; color: #8a93a3; }
.st-disabled { background: #fdeeec; color: #c0392b; }
.st-pending { background: #fff4e0; color: #b9770e; }
#adminGroupWrap { font-size: 13px; }
#adminGroupWrap select {
  padding: 5px 10px; border: 1px solid rgba(255,255,255,.25); border-radius: 8px;
  background: rgba(255,255,255,.12); color: #fff; font-family: inherit; font-size: 13px;
}
#adminGroupWrap select option { color: var(--ink); background: #fff; }

/* ---------- 命题陷阱库 ---------- */
.tgroup {
  border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 12px 16px; margin-bottom: 12px; background: var(--surface);
  box-shadow: var(--shadow-xs);
}
.tgroup-title { margin: 0 0 8px; font-size: 15px; color: var(--primary-d); font-weight: 700; }
.tgroup-count {
  font-size: 12px; color: #fff; background: linear-gradient(120deg, #6a8aff, var(--primary));
  border-radius: 999px; padding: 1px 10px; margin-left: 6px; font-weight: 600;
}
.tgroup .mgroup { background: #f8faff; margin: 8px 0; }
.trap-card { border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 16px; background: var(--surface); box-shadow: var(--shadow-xs); }
.trap-card .tc-meta { margin-bottom: 9px; }
.trap-card .tc-q { font-size: 14px; color: var(--text); white-space: pre-wrap; margin-bottom: 11px; line-height: 1.7; }
.trap-card .tc-trap {
  font-size: 14px; color: #a83d1e; background: linear-gradient(120deg, #fdf3ee, #fbeee6);
  border: 1px solid #f3d5c4; border-radius: var(--radius-sm); padding: 12px 14px; line-height: 1.7;
}

/* ---------- 弹窗 ---------- */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(19, 26, 48, .5);
  backdrop-filter: blur(5px);
  display: flex; align-items: center; justify-content: center; z-index: 1000;
  animation: fadeIn .2s ease;
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.modal-box {
  background: var(--surface); width: min(720px, 92vw); max-height: 86vh; overflow: auto;
  border-radius: 18px; padding: 22px 24px; box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255, 255, 255, .6);
  animation: popIn .24s var(--ease);
}
@keyframes popIn { from { opacity: 0; transform: translateY(14px) scale(.985); } to { opacity: 1; transform: none; } }
.modal-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.modal-head strong { font-size: 16px; color: var(--ink); }
.modal-close {
  border: 1px solid var(--line-strong); background: var(--surface); color: var(--text-2);
  border-radius: 9px; padding: 6px 14px; cursor: pointer; font-family: inherit; font-size: 13px; font-weight: 500;
  transition: all .16s;
}
.modal-close:hover { border-color: #f3c4bf; color: var(--danger); background: #fdeeec; }

/* ---------- 互测 ---------- */
.mutual-header { cursor: pointer; display: flex; align-items: center; gap: 7px; color: var(--ink); }
.mutual-header:hover { color: var(--primary); }
.count-badge {
  display: inline-block; min-width: 19px; padding: 0 7px; height: 19px; line-height: 19px;
  text-align: center; border-radius: 999px;
  background: linear-gradient(120deg, #f06a4a, #d64541); color: #fff;
  font-size: 12px; font-weight: 700;
}
.mutual-hint { color: var(--muted); font-size: 12px; margin: 4px 0 0; }
.mutual-filter { display: flex; flex-direction: column; gap: 9px; margin-bottom: 14px; }
.mf-row { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.mf-select {
  padding: 6px 12px; border: 1px solid var(--line-strong); border-radius: 999px;
  font-size: 13px; background: var(--surface); color: var(--text-2);
  font-family: inherit; cursor: pointer; transition: border-color .15s;
}
.mf-select:hover { border-color: var(--primary-line); }
.mfilter {
  border: 1px solid var(--line-strong); background: var(--surface); color: var(--text-2);
  border-radius: 999px; padding: 5px 15px; cursor: pointer; font-size: 13px;
  font-family: inherit; transition: all .16s var(--ease);
}
.mfilter:hover { border-color: var(--primary-line); color: var(--primary); }
.mfilter.active {
  background: var(--primary); color: #fff; border-color: var(--primary);
  box-shadow: 0 3px 9px rgba(67, 97, 238, .3);
}
.mutual-group { margin-bottom: 18px; }
.mgroup { margin-bottom: 14px; }
.mgroup-title {
  font-size: 14px; margin: 0 0 9px; color: var(--ink);
  border-left: 3px solid var(--primary); padding-left: 10px; font-weight: 700;
}
.mgroup-count { background: var(--primary-soft); color: var(--primary); border-radius: 999px; padding: 1px 9px; font-size: 12px; font-weight: 600; }
.sum-h { cursor: pointer; display: flex; align-items: center; gap: 6px; }
.sum-h:hover { color: var(--primary); }
.dline { font-size: 13px; margin: 4px 0; color: var(--text-2); white-space: pre-wrap; }
.qempty { color: var(--muted); }
.done-tag {
  background: #e6f7ec; color: var(--ok); border-radius: 999px;
  padding: 1px 8px; font-size: 11px; margin-left: 5px; font-weight: 600;
}
.qdetail { margin-top: 9px; border-top: 1px dashed var(--line-strong); padding-top: 10px; }
.dtitle { font-weight: 700; color: var(--ink); margin-bottom: 10px; }
.bsteps { margin-top: 2px; }
.bstep {
  display: none; border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 16px 18px; margin-bottom: 12px;
  background: linear-gradient(160deg, #fbfcff, #f6f8fe);
  animation: stepIn .4s var(--ease); box-shadow: var(--shadow-xs);
}
.bstep.on { display: block; }
@keyframes stepIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
.bstep .bph { display: flex; align-items: center; gap: 10px; margin-bottom: 13px; font-size: 13px; color: var(--muted); letter-spacing: .04em; }
.bstep .bph::after { content: ""; flex: 1; height: 1px; background: var(--line); }
.bstep .bnum {
  font-family: ui-monospace, "Cascadia Code", Menlo, monospace; font-size: 12px;
  color: var(--primary-d); background: var(--primary-soft);
  border: 1px solid var(--primary-line); padding: 1.5px 9px; border-radius: 7px;
  letter-spacing: .04em; font-weight: 700;
}
.bstep .bph-t { font-size: 14px; color: var(--ink); font-weight: 700; letter-spacing: 0; }
.bstep .bstep-body .dfield { margin: 0 0 9px; }
.bstep .bstep-body .dfield:last-child { margin-bottom: 0; }
.recap { border: 1px dashed var(--line-strong); border-radius: var(--radius-sm); padding: 12px 14px; margin-bottom: 12px; background: #fafbff; }
.recap .dfield { margin: 0 0 6px; }
.recap .dfield:last-child { margin-bottom: 0; }
.bstep-nav { margin-top: 2px; }
.bstep-next {
  display: inline-flex; align-items: center; gap: 7px; padding: 9px 18px;
  border-radius: 10px; border: 1px solid var(--line-strong);
  background: var(--surface); color: var(--text-2); font-size: 13px;
  cursor: pointer; font-family: inherit; font-weight: 600;
  transition: all .16s var(--ease);
}
.bstep-next:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-soft); transform: translateY(-1px); }
.dfield { font-size: 13px; margin: 4px 0; white-space: pre-wrap; color: var(--text-2); }
.summary-box h4 { margin: 12px 0 6px; font-size: 13px; color: var(--primary-d); }
.summary-box ul { list-style: none; font-size: 13px; }
.summary-box li { padding: 4px 0; border-bottom: 1px dashed var(--line); }
.summary-box .empty { color: var(--muted); font-size: 13px; }

/* 答题卡 */
.quiz {
  border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 13px 15px; margin-bottom: 11px;
  background: var(--surface); box-shadow: var(--shadow-xs);
  transition: border-color .2s, box-shadow .2s;
}
.quiz:hover { border-color: var(--primary-line); box-shadow: var(--shadow-sm); }
.quiz .qmeta { font-size: 12px; color: var(--muted); margin-bottom: 5px; }
.quiz .qtext { font-size: 13px; margin-bottom: 7px; white-space: pre-wrap; line-height: 1.7; color: var(--text); }
.quiz .qbtns { display: flex; gap: 6px; }
.quiz .qbtns button {
  width: 36px; height: 31px; border: 1.5px solid var(--primary-line); background: var(--surface);
  color: var(--primary); border-radius: 8px; cursor: pointer; font-weight: 700; font-family: inherit;
  transition: all .15s var(--ease);
}
.quiz .qbtns button:hover { background: var(--primary); border-color: var(--primary); color: #fff; transform: translateY(-1px); box-shadow: 0 3px 8px rgba(67, 97, 238, .3); }
.quiz .qres { margin-top: 7px; font-size: 13px; }
.quiz .qres .ok { color: var(--ok); font-weight: 700; }
.quiz .qres .bad { color: var(--danger); font-weight: 700; }

/* ---------- Toast ---------- */
#toastWrap {
  position: fixed; top: 18px; left: 50%; transform: translateX(-50%);
  z-index: 2000; display: flex; flex-direction: column; gap: 8px;
  align-items: center; pointer-events: none;
}
.toast {
  background: rgba(27, 35, 64, .95); color: #fff; padding: 11px 20px;
  border-radius: 999px; font-size: 14px; box-shadow: var(--shadow-lg);
  opacity: 0; transform: translateY(-12px); transition: .28s var(--ease);
  max-width: 86vw; backdrop-filter: blur(8px);
}
.toast.show { opacity: 1; transform: none; }
.toast.ok { background: linear-gradient(120deg, #2fa46a, #278a59); }
.toast.err { background: linear-gradient(120deg, #e0553f, #cf3f2e); }
.toast.warn { background: linear-gradient(120deg, #f0be5c, #dd9d2c); color: #3a2a06; }

/* ---------- 欢迎引导 ---------- */
.modal-box.welcome { width: min(470px, 92vw); text-align: center; padding: 30px 28px; }
.welcome-emoji { font-size: 50px; animation: bounceIn .55s var(--ease); }
@keyframes bounceIn { 0% { transform: scale(.4); opacity: 0; } 60% { transform: scale(1.12); } 100% { transform: scale(1); opacity: 1; } }
.welcome h2 { margin: 8px 0; font-size: 23px; color: var(--ink); }
.welcome-sub { color: var(--muted); font-size: 14px; margin-bottom: 18px; }
.welcome-tip {
  background: var(--primary-soft); border: 1px solid var(--primary-line); color: var(--primary-d);
  border-radius: var(--radius-sm); padding: 11px 14px; font-size: 13px;
  margin: 16px 0; text-align: left; line-height: 1.7;
}
.welcome-tip b { color: var(--ink); }
.steps { display: flex; flex-direction: column; gap: 10px; text-align: left; margin-bottom: 18px; }
.step {
  display: flex; gap: 13px; align-items: center;
  background: #f8faff; border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 11px 14px; transition: all .18s var(--ease);
}
.step:hover { border-color: var(--primary-line); background: var(--primary-soft); transform: translateX(3px); }
.step-n {
  flex: 0 0 30px; height: 30px; border-radius: 50%;
  background: linear-gradient(135deg, #4c6bf5, var(--primary-d)); color: #fff;
  display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 14px;
  box-shadow: 0 3px 8px rgba(67, 97, 238, .35);
}
.step b { color: var(--ink); }
.step span { font-size: 12px; color: var(--muted); }
.welcome-eg {
  background: var(--gold-soft); border: 1px solid var(--gold-line);
  border-radius: var(--radius-sm); padding: 13px 14px; text-align: left; margin-bottom: 18px;
}
.we-title { font-weight: 700; color: #8a5a12; margin-bottom: 9px; }
.we-row { font-size: 13px; color: var(--text); margin: 5px 0; line-height: 1.6; }
.we-k { display: inline-block; min-width: 40px; color: #8a5a12; font-weight: 700; }
.w-full { width: 100%; }
.btn-primary.w-full { padding: 13px; font-size: 15px; letter-spacing: .04em; }

/* ---------- 我的 ---------- */
.mine-top { display: flex; align-items: center; gap: 13px; margin-bottom: 16px; }
.mine-avatar {
  flex: 0 0 48px; height: 48px; border-radius: 50%;
  background: linear-gradient(135deg, #4c6bf5, #7a97f5);
  color: #fff; display: flex; align-items: center; justify-content: center;
  font-size: 21px; font-weight: 700; box-shadow: var(--shadow-primary);
}
.mine-name { font-size: 16px; font-weight: 700; color: var(--ink); }
.mine-role { font-size: 12px; color: var(--muted); margin-top: 2px; }
.mine-sec h4 { font-size: 14px; margin: 8px 0 9px; color: var(--ink); }
.mini-fav {
  background: #f8faff; border: 1px solid var(--line); border-radius: var(--radius-xs);
  padding: 9px 12px; font-size: 12px; color: var(--text); cursor: pointer;
  margin-bottom: 7px; transition: all .16s var(--ease);
}
.mini-fav:hover { background: var(--primary-soft); border-color: var(--primary-line); transform: translateX(3px); }

/* ---------- 移动端底部 Tab ---------- */
.mobile-tabs { display: none; }
@media (max-width: 900px) {
  .mobile-tabs {
    display: flex; position: fixed; bottom: 0; left: 0; right: 0;
    background: rgba(255, 255, 255, .92); backdrop-filter: blur(12px);
    border-top: 1px solid var(--line); box-shadow: 0 -4px 18px rgba(27, 35, 64, .08);
    z-index: 900; padding: 4px 0 calc(4px + env(safe-area-inset-bottom));
  }
  .mtab {
    flex: 1; display: flex; flex-direction: column; align-items: center; gap: 2px;
    padding: 6px 0; cursor: pointer; color: var(--muted); font-size: 11px;
    transition: color .15s;
  }
  .mtab .mi { font-size: 20px; transition: transform .18s var(--ease); }
  .mtab:active .mi { transform: scale(.88); }
  .mtab.active { color: var(--primary); font-weight: 600; }
  .content { padding-bottom: 66px; }
  .hero { margin-bottom: 0; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 1100px) { .kpi-row { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 900px) {
  .dash-grid { grid-template-columns: 1fr; }
  .layout { flex-direction: column; }
  .sidebar {
    width: 100%; flex: none; min-height: 0;
    display: flex; flex-direction: row; align-items: center; gap: 6px;
    overflow-x: auto; overflow-y: hidden; padding: 10px 12px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .sidebar::-webkit-scrollbar { display: none; }
  .sidebar .nav-item { margin-bottom: 0; white-space: nowrap; padding: 9px 15px; font-size: 13px; }
  main { grid-template-columns: 1fr; }

  .landing { flex-direction: column; padding: 16px; gap: 26px; text-align: center; }
  .landing-left { width: 100%; max-width: 480px; }
  .sell, .value-strip, .setter-cta { max-width: none; margin-left: auto; margin-right: auto; }
  .sell { text-align: left; }
  .value-strip { text-align: left; grid-template-columns: 1fr 1fr; }
  .setter-cta { text-align: left; }
  .auth-col { flex: none; width: 100%; max-width: 380px; margin: 0 auto; }
  .value-strip { display: grid; grid-template-columns: 1fr 1fr; gap: 2px 12px; justify-items: center; }
  .value-strip span + span::before { content: none; }
  .landing-left h1 { font-size: 27px; }
  .landing-left .brand { font-size: 12px; }
  .entry-grid { grid-template-columns: repeat(2, 1fr); }
  .home-cols { grid-template-columns: 1fr; }
  .module-cards { grid-template-columns: repeat(2, 1fr); }
  .home-stats .stat-row { grid-template-columns: repeat(2, 1fr); }
  .browse-cols { grid-template-columns: 1fr; }
  .upload-row { flex-wrap: wrap; }
  .upload-row button { padding: 10px 16px; font-size: 15px; }
  .hero { flex-direction: column; align-items: flex-start; gap: 12px; }
}

/* ---------- 动效关怀 ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}