:root {
  --bg: #f7f4ee;
  --card: rgba(255, 255, 255, 0.88);
  --text: #23312d;
  --muted: #68736f;
  --line: rgba(35, 49, 45, 0.12);
  --primary: #1f6b5b;
  --primary-2: #2f8874;
  --soft: #e9f2ed;
  --danger: #9b3a2f;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(102, 180, 154, 0.28), transparent 32%),
    radial-gradient(circle at bottom right, rgba(236, 184, 116, 0.22), transparent 34%),
    var(--bg);
  color: var(--text);
}

.landing-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.hero-card, .panel, .stat-card {
  background: var(--card);
  border: 1px solid var(--line);
  box-shadow: 0 20px 60px rgba(35, 49, 45, 0.10);
  backdrop-filter: blur(16px);
}

.hero-card {
  width: min(720px, 100%);
  border-radius: 32px;
  padding: 36px;
}

.brand-row {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.brand-mark {
  width: 54px;
  height: 54px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, #1f6b5b, #88bfa9);
  color: white;
  font-weight: 800;
  letter-spacing: 0.03em;
  flex: 0 0 auto;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--primary);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1, h2 { margin: 0; line-height: 1.18; }
h1 { font-size: clamp(30px, 5vw, 52px); letter-spacing: -0.04em; }
h2 { font-size: 22px; }

.hero-text {
  margin: 28px 0;
  font-size: 18px;
  line-height: 1.8;
  color: var(--muted);
}

.source-box, .mini-program-box {
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 20px;
  background: rgba(255,255,255,0.55);
  margin: 18px 0;
}

.source-box span, .source-box small, .mini-note, .muted, small {
  color: var(--muted);
}

.source-box strong, .mini-name {
  display: block;
  margin-top: 6px;
  font-size: 22px;
}

.mini-title { margin: 0 0 6px; color: var(--muted); }
.mini-name { margin: 0; font-weight: 900; }
.mini-note { margin-bottom: 0; line-height: 1.7; }

.primary-btn, .primary-link, .secondary-link, .secondary-btn, .ghost-btn, .tiny-btn {
  border: 0;
  cursor: pointer;
  font: inherit;
  text-decoration: none;
  border-radius: 999px;
  transition: transform 0.15s ease, opacity 0.15s ease;
}

.primary-btn, .primary-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 22px;
  background: var(--primary);
  color: white;
  font-weight: 800;
  margin-top: 12px;
}

.primary-btn:hover, .primary-link:hover, .secondary-btn:hover, .ghost-btn:hover, .tiny-btn:hover { transform: translateY(-1px); }
.primary-btn:disabled { opacity: 0.68; cursor: not-allowed; }

.secondary-link, .secondary-btn, .ghost-btn, .tiny-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 16px;
  background: var(--soft);
  color: var(--primary);
  font-weight: 700;
  margin: 10px 8px 0 0;
}

.small-tip { color: var(--muted); font-size: 13px; line-height: 1.7; }
.hidden { display: none !important; }

.admin-shell {
  width: min(1180px, 100%);
  margin: 0 auto;
  padding: 28px 18px 64px;
}

.admin-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
}

.admin-header h1 { font-size: clamp(28px, 4vw, 44px); }

.panel {
  border-radius: 26px;
  padding: 24px;
  margin-bottom: 22px;
}

.narrow-panel { max-width: 460px; }
.panel-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 18px;
}
.panel-actions { white-space: nowrap; }

.stats-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 14px;
  margin-bottom: 22px;
}

.stat-card {
  border-radius: 22px;
  padding: 18px;
}
.stat-card span { color: var(--muted); font-size: 13px; }
.stat-card strong { display: block; margin-top: 8px; font-size: 28px; }

.form-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.field span {
  display: block;
  margin-bottom: 7px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.field input, .field select {
  width: 100%;
  height: 44px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.7);
  padding: 0 12px;
  color: var(--text);
  outline: none;
}

.field input:focus, .field select:focus { border-color: var(--primary-2); }
.field.wide { grid-column: span 2; }
.form-msg { min-height: 22px; color: var(--danger); }
.form-msg.ok { color: var(--primary); }

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 18px;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 980px;
  background: rgba(255,255,255,0.52);
}

th, td {
  padding: 12px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: middle;
  font-size: 14px;
}

th { color: var(--muted); font-size: 12px; }
tr:last-child td { border-bottom: 0; }
.empty-cell { text-align: center; color: var(--muted); padding: 28px; }
.qr-img { width: 82px; height: 82px; border-radius: 10px; background: white; }
.tiny-btn { padding: 7px 10px; font-size: 12px; margin: 0; }
.danger-btn { background: #f5ded9; color: var(--danger); }
.action-cell { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.status { padding: 5px 9px; border-radius: 99px; font-size: 12px; font-weight: 800; }
.status.active { background: #dff3ea; color: #1f6b5b; }
.status.disabled { background: #f5ded9; color: #9b3a2f; }

@media (max-width: 900px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .form-grid { grid-template-columns: 1fr; }
  .field.wide { grid-column: auto; }
  .panel-head, .admin-header { flex-direction: column; align-items: stretch; }
}

.notice-panel {
  padding: 20px 24px;
}

.rule-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-top: 14px;
}

.rule-grid div {
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.56);
  border-radius: 18px;
  padding: 14px;
}

.rule-grid strong {
  display: block;
  font-size: 18px;
  margin-bottom: 6px;
}

.rule-grid span {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
}

.filter-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 14px;
  margin-bottom: 16px;
}

.path-text {
  display: inline-block;
  max-width: 220px;
  line-height: 1.45;
  margin-top: 4px;
}

@media (max-width: 900px) {
  .rule-grid,
  .filter-grid { grid-template-columns: 1fr; }
}

/* v1.3 leads review */
.lead-status-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(120px, 1fr));
  gap: 12px;
  margin: 18px 0 20px;
}

.mini-stat {
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 14px 16px;
  background: rgba(255,255,255,0.62);
}

.mini-stat span {
  display: block;
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 8px;
}

.mini-stat strong {
  display: block;
  font-size: 24px;
}

.leads-filter-grid {
  grid-template-columns: 1.4fr 1.2fr 1fr 1fr 1fr;
}

.lead-status-select {
  width: 110px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 10px;
  background: white;
  color: var(--text);
  font: inherit;
}

.lead-remark-input {
  width: min(260px, 100%);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 10px 12px;
  resize: vertical;
  font: inherit;
  color: var(--text);
  background: white;
}

.lead-save-msg {
  display: inline-block;
  margin-top: 8px;
  color: var(--primary);
}

@media (max-width: 900px) {
  .lead-status-grid,
  .leads-filter-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 620px) {
  .lead-status-grid,
  .leads-filter-grid {
    grid-template-columns: 1fr;
  }
}

/* v1.4 channel detail */
.detail-hero {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 22px;
  align-items: start;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(255,255,255,0.56);
  margin-bottom: 18px;
}

.detail-main h3 {
  margin: 0 0 8px;
  font-size: 28px;
  letter-spacing: -0.03em;
}

.path-line {
  color: var(--primary);
  font-weight: 700;
  line-height: 1.65;
  margin: 12px 0;
}

.detail-link-row {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  margin-top: 12px;
}

.detail-qr {
  display: grid;
  place-items: center;
}

.qr-img.large {
  width: 130px;
  height: 130px;
}

.detail-metric-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 18px;
}

.detail-metric {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255,255,255,0.64);
  padding: 15px 16px;
}

.detail-metric span {
  display: block;
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 8px;
}

.detail-metric strong {
  display: block;
  font-size: 26px;
  margin-bottom: 4px;
}

.detail-section-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 14px;
  margin-bottom: 14px;
}

.detail-box {
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(255,255,255,0.58);
  padding: 16px;
}

.detail-box h3 {
  margin: 0 0 12px;
  font-size: 18px;
}

.full-box {
  margin-top: 14px;
}

.info-list p {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 10px;
  margin: 8px 0;
  line-height: 1.6;
}

.info-list span {
  color: var(--muted);
}

.info-list strong {
  font-weight: 700;
}

.compact-table table {
  min-width: 760px;
}

@media (max-width: 900px) {
  .detail-hero,
  .detail-section-grid {
    grid-template-columns: 1fr;
  }

  .detail-metric-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 620px) {
  .detail-metric-grid {
    grid-template-columns: 1fr;
  }

  .info-list p {
    grid-template-columns: 1fr;
  }
}