:root {
  --bg: #f4f7fb;
  --panel: rgba(255,255,255,0.94);
  --line: #e5e7eb;
  --text: #111827;
  --sub: #6b7280;
  --primary: #2563eb;
  --primary-2: #1d4ed8;
  --primary-soft: #eff6ff;
  --green: #059669;
  --green-soft: #ecfdf5;
  --orange: #ea580c;
  --orange-soft: #fff7ed;
  --shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(circle at top left, #dbeafe 0, transparent 28%),
    radial-gradient(circle at top right, #e9d5ff 0, transparent 22%),
    var(--bg);
  color: var(--text);
}
.shell {
  max-width: 1320px;
  margin: 0 auto;
  padding: 24px;
}
.topbar, .hero-grid, .main-grid { display: grid; gap: 18px; }
.topbar {
  grid-template-columns: 1fr auto;
  align-items: start;
  margin-bottom: 18px;
}
.eyebrow {
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
}
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 10px; font-size: 34px; line-height: 1.15; }
.lead { max-width: 780px; color: var(--sub); line-height: 1.7; }
.top-actions { display: flex; gap: 10px; }
.panel {
  background: var(--panel);
  border: 1px solid rgba(255,255,255,0.7);
  border-radius: 22px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}
.hero-grid { grid-template-columns: 1.35fr 0.85fr; margin-bottom: 18px; }
.hero-panel, .quick-panel, .progress-panel, .main-panel, .side-panel, .goods-panel { padding: 22px; }
.hero-badge {
  display: inline-block;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--primary-soft);
  color: var(--primary-2);
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 14px;
}
.hero-steps { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 16px; }
.hero-steps span {
  background: white;
  border: 1px solid var(--line);
  padding: 10px 12px;
  border-radius: 12px;
  font-size: 14px;
}
.hero-note, .quick-panel ol, .section-title-row p, .screen-desc { color: var(--sub); line-height: 1.8; }
.quick-panel ol { margin: 0; padding-left: 18px; }
.stepper {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
}
.step {
  padding: 14px 12px;
  border-radius: 14px;
  background: #fff;
  border: 1px solid var(--line);
  color: var(--sub);
  font-size: 14px;
  text-align: center;
}
.step.active {
  background: var(--primary-soft);
  color: var(--primary-2);
  border-color: #bfdbfe;
  font-weight: 700;
}
.step.done {
  background: var(--green-soft);
  color: var(--green);
  border-color: #a7f3d0;
  font-weight: 700;
}
.main-grid { grid-template-columns: 1.4fr 0.8fr; margin: 18px 0; }
.screen-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 18px;
}
.btn-row {
  display: flex;
  gap: 10px;
  margin-top: 20px;
  flex-wrap: wrap;
}
.btn {
  height: 44px;
  padding: 0 16px;
  border-radius: 12px;
  border: none;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
}
.btn-primary { background: linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 100%); color: white; }
.btn-secondary { background: white; color: var(--text); border: 1px solid var(--line); }
.btn-ghost { background: #f8fafc; color: var(--sub); border: 1px solid var(--line); }
.helper-box {
  background: linear-gradient(180deg, #f8fbff 0%, #ffffff 100%);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 18px;
}
.helper-box ul, .tip-list, .reason-list {
  margin: 10px 0 0;
  padding-left: 18px;
  color: var(--sub);
  line-height: 1.9;
}
.info-card {
  border-radius: 16px;
  padding: 16px;
  background: #f8fafc;
  color: var(--text);
  line-height: 1.75;
}
.info-card.muted { color: var(--sub); }
.side-block + .side-block { margin-top: 16px; }
.video-box {
  border: 1px solid var(--line);
  border-radius: 18px;
  overflow: hidden;
  background: #0f172a;
  position: relative;
  min-height: 300px;
}
.video-box video {
  width: 100%;
  height: 100%;
  min-height: 300px;
  object-fit: cover;
  display: block;
  background: #0f172a;
}
.camera-mask {
  position: absolute;
  inset: 0;
  border: 2px dashed rgba(255,255,255,0.7);
  border-radius: 28px;
  margin: 18px;
  pointer-events: none;
}
.camera-tip {
  position: absolute;
  left: 20px;
  bottom: 20px;
  background: rgba(15,23,42,0.72);
  color: white;
  padding: 10px 12px;
  border-radius: 12px;
  font-size: 13px;
}
.record-toolbar {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  margin-top: 14px;
}
.record-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  background: var(--orange-soft);
  color: var(--orange);
  font-weight: 700;
  font-size: 13px;
}
.dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #ef4444;
}
.portrait-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.portrait-box, .recommend-item, .goods-item, .preview-box {
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 16px;
  background: white;
}
.badges { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.badge {
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--primary-soft);
  color: var(--primary-2);
  font-size: 12px;
  font-weight: 700;
}
.badge.warn { background: var(--orange-soft); color: var(--orange); }
.recommend-list, .goods-grid, .preview-grid { display: grid; gap: 14px; }
.recommend-item .top, .goods-item .top { display: flex; justify-content: space-between; gap: 12px; align-items: start; }
.meta { color: var(--sub); font-size: 13px; line-height: 1.7; }
.score { color: var(--green); font-weight: 800; }
.preview-grid { grid-template-columns: 1fr 1fr; }
.preview-image {
  width: 100%;
  min-height: 320px;
  object-fit: cover;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: #f8fafc;
}
.goods-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.analysis-box {
  min-height: 280px;
  display: grid;
  place-items: center;
  text-align: center;
}
.spinner {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: 5px solid #dbeafe;
  border-top-color: var(--primary);
  animation: spin 1s linear infinite;
  margin: 0 auto 16px;
}
@keyframes spin { to { transform: rotate(360deg); } }
@media (max-width: 1024px) {
  .hero-grid, .main-grid { grid-template-columns: 1fr; }
  .goods-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stepper { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .preview-grid, .portrait-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .shell { padding: 14px; }
  .topbar { grid-template-columns: 1fr; }
  .top-actions { width: 100%; }
  .top-actions .btn { flex: 1; }
  .stepper, .goods-grid { grid-template-columns: 1fr; }
  h1 { font-size: 28px; }
}