/* ========================================================================
   eduvis · AI教培视觉智能体 · 移动端 H5 样式
   深色科技风：紫蓝渐变 + 星点背景
   ======================================================================== */
:root {
  --bg-0: #0a0820;
  --bg-1: #141033;
  --bg-2: #1a1640;
  --line: rgba(255,255,255,.08);
  --line-strong: rgba(255,255,255,.16);
  --text: #ffffff;
  --text-2: rgba(255,255,255,.74);
  --text-3: rgba(255,255,255,.5);
  --brand: #7c5cff;
  --brand-2: #2bd1ff;
  --brand-3: #ff6ec4;
  --pink: #ff5fb1;
  --cyan: #4cd9ff;
  --green: #41e0a4;
  --orange: #ffb13b;
  --radius: 14px;
  --radius-lg: 22px;
  --shadow: 0 8px 30px rgba(0,0,0,.4);
  --safe-bottom: env(safe-area-inset-bottom, 0);
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
               "Hiragino Sans GB", "Microsoft Yahei", sans-serif;
  background: radial-gradient(ellipse at top, #1c1654 0%, #0a0820 60%) fixed;
  color: var(--text);
  min-height: 100vh;
  font-size: 14px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ---------- 顶部 ---------- */
.topbar {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 14px;
  background: linear-gradient(180deg, rgba(10,8,32,.92) 0%, rgba(10,8,32,.6) 100%);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 8px; font-weight: 700; }
.brand-dot {
  width: 22px; height: 22px; border-radius: 6px;
  background: conic-gradient(from 0deg, #7c5cff, #2bd1ff, #ff6ec4, #7c5cff);
  box-shadow: 0 0 14px rgba(124,92,255,.6);
}
.brand-name { font-size: 16px; letter-spacing: .5px; }
.brand-tag {
  font-size: 10px; padding: 1px 6px; border-radius: 4px;
  background: linear-gradient(135deg, #7c5cff, #2bd1ff);
  color: #fff; font-weight: 600;
}
.top-actions { display: flex; gap: 8px; }
.icon-btn, .ghost-btn {
  background: transparent; border: 1px solid var(--line);
  color: var(--text); padding: 6px 12px; border-radius: 999px;
  font-size: 13px; cursor: pointer;
  transition: all .15s ease;
}
.icon-btn:hover, .ghost-btn:hover { border-color: var(--brand); color: #fff; }

/* ---------- 页面通用 ---------- */
main { position: relative; padding-bottom: 80px; }
.page {
  display: none;
  padding: 16px 16px 24px;
  animation: fadeIn .3s ease;
}
.page.active { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

.page-title {
  font-size: 22px; font-weight: 800; margin: 8px 0 6px;
  background: linear-gradient(90deg, #fff, #b9b3ff);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.page-sub { color: var(--text-2); margin: 0 0 14px; font-size: 13px; }

/* ---------- 背景星点 ---------- */
.bg-stars {
  position: absolute; inset: 0; pointer-events: none; z-index: 0;
  background-image:
    radial-gradient(1px 1px at 12% 18%, #fff 50%, transparent),
    radial-gradient(1px 1px at 26% 32%, #b9b3ff 50%, transparent),
    radial-gradient(1.4px 1.4px at 42% 8%, #fff 50%, transparent),
    radial-gradient(1px 1px at 58% 24%, #4cd9ff 50%, transparent),
    radial-gradient(1px 1px at 73% 14%, #fff 50%, transparent),
    radial-gradient(1.2px 1.2px at 88% 32%, #ff9edb 50%, transparent),
    radial-gradient(1px 1px at 8% 60%, #fff 50%, transparent),
    radial-gradient(1px 1px at 32% 78%, #b9b3ff 50%, transparent),
    radial-gradient(1.2px 1.2px at 52% 88%, #4cd9ff 50%, transparent),
    radial-gradient(1px 1px at 78% 70%, #fff 50%, transparent),
    radial-gradient(1px 1px at 92% 56%, #ff9edb 50%, transparent);
  opacity: .6;
  animation: starDrift 60s linear infinite;
}
@keyframes starDrift { from { transform: translateY(0); } to { transform: translateY(-200px); } }
.page > *:not(.bg-stars) { position: relative; z-index: 1; }

/* ---------- 首页 Hero ---------- */
.hero { text-align: center; padding: 18px 0 22px; }
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 12px; color: var(--text-2);
  padding: 4px 12px; border: 1px solid var(--line);
  border-radius: 999px; backdrop-filter: blur(6px);
}
.hero-eyebrow i { width: 4px; height: 4px; background: var(--brand-2); border-radius: 50%; }
.hero-title {
  font-size: 38px; font-weight: 900; margin: 14px 0 4px;
  letter-spacing: -1px;
  background: linear-gradient(90deg, #fff 0%, #b9b3ff 40%, #4cd9ff 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.badge-s2 {
  display: inline-block; font-size: 14px; padding: 2px 8px; margin-left: 6px;
  border-radius: 6px; vertical-align: middle;
  background: linear-gradient(135deg, #7c5cff, #2bd1ff);
  color: #fff; -webkit-text-fill-color: #fff;
}
.hero-sub { color: var(--text-2); margin: 4px 0; font-size: 14px; }
.hero-tag {
  color: var(--brand-2); margin-top: 8px; font-size: 13px;
  letter-spacing: 1px;
}

/* ---------- 团队卡片 ---------- */
.card-glass {
  background: linear-gradient(180deg, rgba(255,255,255,.04) 0%, rgba(255,255,255,.02) 100%);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 16px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  margin: 16px 0;
}
.team-card { background:
  linear-gradient(180deg, rgba(124,92,255,.08) 0%, rgba(43,209,255,.04) 100%),
  rgba(255,255,255,.02);
  border-color: rgba(124,92,255,.2);
}
.team-head { display: flex; gap: 12px; align-items: center; margin-bottom: 14px; }
.team-head-info { flex: 1; }
.team-head-info .row { display: flex; align-items: center; gap: 8px; }
.team-head-info h3 { font-size: 16px; margin: 0; }
.team-head-info p { color: var(--text-2); margin: 4px 0 0; font-size: 12px; }
.role-chip {
  font-size: 10px; padding: 1px 6px; border-radius: 4px; font-weight: 600;
}
.role-chief { background: linear-gradient(135deg, #7c5cff, #2bd1ff); color: #fff; }

.avatar {
  width: 36px; height: 36px; border-radius: 50%;
  background: linear-gradient(135deg, #2bd1ff, #7c5cff);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; box-shadow: 0 4px 12px rgba(124,92,255,.3);
  flex-shrink: 0;
}
.avatar-lg { width: 50px; height: 50px; font-size: 26px; }

.team-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px 8px;
  text-align: center; margin-top: 8px;
}
.team-member { display: flex; flex-direction: column; align-items: center; gap: 6px; }
.team-member .avatar { width: 44px; height: 44px; font-size: 22px; }
.team-member span { font-size: 11px; color: var(--text-2); }

/* ---------- 按钮 ---------- */
.primary-btn {
  width: 100%; border: 0; cursor: pointer; color: #fff; font-weight: 700;
  padding: 14px 18px; border-radius: 14px; font-size: 15px;
  background: linear-gradient(135deg, #7c5cff 0%, #2bd1ff 100%);
  box-shadow: 0 8px 24px rgba(124,92,255,.4);
  transition: transform .12s ease, box-shadow .12s ease;
}
.primary-btn:active { transform: translateY(1px); box-shadow: 0 4px 12px rgba(124,92,255,.3); }
.primary-btn.big { padding: 16px 20px; font-size: 16px; }
.primary-btn:disabled { opacity: .5; cursor: not-allowed; }

/* ---------- 快捷入口 ---------- */
.quick-tip { text-align: center; color: var(--text-3); font-size: 12px; margin-top: 8px; }
.quick-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-top: 16px;
}
.quick-card {
  background: rgba(255,255,255,.04); border: 1px solid var(--line);
  border-radius: 14px; padding: 12px 6px; color: var(--text);
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  cursor: pointer; transition: all .15s;
}
.quick-card:hover { border-color: var(--brand); transform: translateY(-2px); }
.qc-icon { font-size: 22px; }
.qc-text { font-size: 11px; color: var(--text-2); }

/* ---------- 表单 ---------- */
.form-block { margin: 18px 0; }
.form-label {
  display: flex; align-items: center; gap: 8px;
  font-size: 15px; font-weight: 700; margin-bottom: 10px;
}
.form-label .ico { font-size: 18px; }
.chip-grid { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  background: rgba(255,255,255,.04);
  border: 1px solid var(--line);
  color: var(--text);
  padding: 8px 14px; border-radius: 999px;
  font-size: 13px; cursor: pointer;
  transition: all .15s ease;
}
.chip:active { transform: scale(.97); }
.chip.active {
  background: linear-gradient(135deg, rgba(124,92,255,.35), rgba(43,209,255,.25));
  border-color: var(--brand);
  box-shadow: 0 0 0 1px var(--brand), 0 0 14px rgba(124,92,255,.4);
}
.text-input, textarea {
  width: 100%; box-sizing: border-box; margin-top: 10px;
  background: rgba(255,255,255,.04);
  border: 1px solid var(--line);
  color: var(--text);
  padding: 12px 14px; border-radius: 12px; font-size: 14px;
  font-family: inherit;
  transition: border-color .15s;
}
.text-input:focus, textarea:focus { border-color: var(--brand); outline: none; }
textarea { resize: vertical; min-height: 80px; }
.text-input::placeholder, textarea::placeholder { color: var(--text-3); }

.submit-btn { margin-top: 20px; }
.quota-bar {
  display: flex; justify-content: space-between; align-items: center;
  margin-top: 12px; padding: 8px 14px;
  background: rgba(255,255,255,.04); border-radius: 10px;
  font-size: 12px; color: var(--text-2);
}
.quota-bar b { color: var(--brand-2); }
.quota-tip { color: var(--text-3); }

.quick-actions { display: flex; gap: 8px; margin-top: 14px; }
.qa-btn {
  flex: 1; background: rgba(255,255,255,.04);
  border: 1px solid var(--line);
  color: var(--text); padding: 10px;
  border-radius: 999px; cursor: pointer; font-size: 13px;
}
.qa-btn:hover { border-color: var(--brand-2); }

/* ---------- 加载页 ---------- */
.loader-wrap { text-align: center; padding: 40px 16px; }
.loader-ring {
  width: 80px; height: 80px; margin: 0 auto 20px;
  border-radius: 50%;
  background: conic-gradient(from 0deg, transparent 0deg, #7c5cff 90deg, #2bd1ff 180deg, transparent 360deg);
  -webkit-mask: radial-gradient(circle, transparent 50%, #000 51%);
  mask: radial-gradient(circle, transparent 50%, #000 51%);
  animation: spin 1.6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.loader-steps { list-style: none; padding: 0; margin: 16px auto; max-width: 280px; text-align: left; }
.loader-steps li {
  padding: 6px 10px; color: var(--text-3); font-size: 13px;
  border-left: 2px solid var(--line);
  margin: 4px 0;
  transition: all .3s;
}
.loader-steps li.active { color: var(--brand-2); border-color: var(--brand-2); padding-left: 14px; }
.loader-steps li.done { color: var(--text-2); border-color: var(--green); }
.loader-tip { color: var(--text-3); font-size: 12px; margin-top: 10px; }

/* ---------- 结果页 ---------- */
.result-list { display: flex; flex-direction: column; gap: 14px; margin-top: 12px; }
.result-card {
  background: rgba(255,255,255,.03);
  border: 1px solid var(--line);
  border-radius: var(--radius); overflow: hidden;
}
.result-img {
  width: 100%; display: block; cursor: pointer;
  background: linear-gradient(135deg, #1a1640, #141033);
  min-height: 200px;
}
.result-meta { padding: 10px 12px; }
.result-meta .row { display: flex; justify-content: space-between; align-items: center; }
.result-meta .tags { display: flex; flex-wrap: wrap; gap: 4px; }
.result-meta .tag {
  font-size: 10px; padding: 1px 6px; border-radius: 4px;
  background: rgba(124,92,255,.18); color: #cdbfff;
}
.result-actions { display: flex; gap: 8px; margin-top: 18px; }
.result-actions button { flex: 1; }

/* ---------- 历史 ---------- */
.history-list { display: flex; flex-direction: column; gap: 12px; }
.history-item {
  display: flex; gap: 10px; padding: 10px;
  background: rgba(255,255,255,.03);
  border: 1px solid var(--line);
  border-radius: 12px; align-items: center;
}
.history-item img { width: 64px; height: 64px; object-fit: cover; border-radius: 8px; background: #141033; }
.history-item .info { flex: 1; min-width: 0; }
.history-item .info .t { font-size: 13px; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.history-item .info .m { font-size: 11px; color: var(--text-3); margin-top: 2px; }
.history-item .info .d { font-size: 10px; color: var(--text-3); margin-top: 4px; }

/* ---------- Modal ---------- */
.modal-mask {
  position: fixed; inset: 0; z-index: 100;
  background: rgba(0,0,0,.6); backdrop-filter: blur(6px);
  display: flex; align-items: center; justify-content: center;
  padding: 16px;
  animation: fadeIn .2s;
}
.modal-box {
  width: 100%; max-width: 360px;
  background: linear-gradient(180deg, #1a1640, #141033);
  border: 1px solid var(--line-strong);
  border-radius: 18px; padding: 20px;
  box-shadow: var(--shadow);
}
.modal-box h3 { margin: 0 0 10px; font-size: 17px; }
.modal-box .text-input { margin-top: 8px; }
.modal-actions { display: flex; gap: 8px; margin-top: 14px; flex-wrap: wrap; }
.modal-actions button { flex: 1; min-width: 0; }
.modal-tip { color: var(--text-2); font-size: 12px; text-align: center; margin: 8px 0 0; }
.qr-wrap { text-align: center; margin: 14px 0; }
.qr-wrap img { max-width: 180px; border-radius: 8px; }
.qr-placeholder {
  width: 180px; height: 180px; margin: 0 auto;
  background: repeating-linear-gradient(45deg, #2a2555, #2a2555 6px, #141033 6px, #141033 12px);
  border-radius: 8px; display: flex; align-items: center; justify-content: center;
  color: var(--text-3); font-size: 12px;
}

/* ---------- Toast ---------- */
.toast {
  position: fixed; left: 50%; top: 80px; transform: translateX(-50%);
  z-index: 200; padding: 10px 18px; border-radius: 999px;
  background: rgba(20,16,51,.95); color: #fff;
  font-size: 13px; box-shadow: var(--shadow);
  border: 1px solid var(--line-strong);
  display: none;
}
.toast.show { display: block; animation: toastIn .25s ease; }
@keyframes toastIn { from { opacity: 0; transform: translate(-50%, -8px); } to { opacity: 1; transform: translate(-50%, 0); } }

/* ---------- 悬浮操作按钮 ---------- */
.floating-actions {
  position: fixed; left: 12px; bottom: calc(20px + var(--safe-bottom)); z-index: 30;
  display: flex; flex-direction: column; gap: 8px;
}
.fa-btn {
  background: rgba(20,16,51,.85); backdrop-filter: blur(8px);
  border: 1px solid var(--line-strong);
  color: var(--text); padding: 8px 12px;
  border-radius: 999px; font-size: 12px; cursor: pointer;
  box-shadow: var(--shadow);
}
.fa-btn:hover { border-color: var(--brand-2); }

@media (max-width: 360px) {
  .hero-title { font-size: 30px; }
  .team-grid { grid-template-columns: repeat(4, 1fr); gap: 10px 4px; }
  .team-member .avatar { width: 38px; height: 38px; font-size: 18px; }
}