/* Zainadiao Lightweight SSR Homepage Styles */
.landing {
  box-sizing: border-box;
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: 24px 40px calc(80px + env(safe-area-inset-bottom, 0px));
}

.landing a:focus-visible,
.landing input:focus-visible,
.landing select:focus-visible,
.landing button:focus-visible,
.landing summary:focus-visible {
  outline: 3px solid #38bdf8;
  outline-offset: 2px;
}

/* --- Section 1: Deep Water Hero Section --- */
.landing-intro {
  position: relative;
  overflow: hidden;
  border-radius: 20px;
  padding: 36px 24px 44px;
  background: linear-gradient(180deg, #1e3a5f 0%, #152d47 50%, #0e2033 100%);
  color: #ffffff;
  box-shadow: 0 12px 36px -8px rgba(14, 32, 51, 0.35);
}

.landing-intro-texture {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  overflow: hidden;
  opacity: 0.12;
  z-index: 0;
}

.landing-texture-svg {
  width: 100%;
  height: 100%;
  display: block;
  overflow: hidden;
}

.landing-hero-content {
  position: relative;
  z-index: 1;
}

/* 呼吸地域感知 Bar */
.landing-eyebrow {
  font-size: 13px;
  font-weight: 600;
  color: #4ade80;
  letter-spacing: 0.04em;
  margin: 0 0 10px;
}

#landing-title {
  font-size: clamp(26px, 4.5vw, 40px);
  font-weight: 800;
  color: #ffffff;
  line-height: 1.25;
  margin: 0 0 12px;
  letter-spacing: -0.01em;
  text-wrap: balance;
}

.landing-lead {
  font-size: clamp(15px, 2vw, 17px);
  color: #cbd5e1;
  line-height: 1.6;
  max-width: 680px;
  margin: 0 0 24px;
}

.landing-search-label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: #94a3b8;
  margin: 0 0 8px;
}

.landing-search {
  display: flex;
  align-items: center;
  max-width: 680px;
  background: #ffffff;
  border: 1.5px solid rgba(255, 255, 255, 0.4);
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.18);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  overflow: hidden;
}

.landing-search:focus-within {
  border-color: #38bdf8;
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.35);
}

.landing-search-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  padding-left: 14px;
  color: #64748b;
  pointer-events: none;
}

.landing-search input {
  flex: 1;
  min-width: 0;
  padding: 14px 12px;
  border: 0;
  outline: none;
  font-size: 16px;
  color: #0f172a;
  background: transparent;
}

.landing-search input::placeholder {
  color: #94a3b8;
}

.landing-search button {
  min-height: 48px;
  padding: 0 22px;
  background: #15803d;
  color: #ffffff;
  border: 0;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease;
  white-space: nowrap;
}

.landing-search button:hover {
  background: #166534;
}

/* 热门探索与目标鱼种微药丸 */
.landing-quick-tags {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 14px;
  font-size: 12px;
}

.quick-tags-label {
  color: #94a3b8;
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
  flex-shrink: 0;
}

.quick-tags-sep {
  color: rgba(255, 255, 255, 0.3);
  margin: 0 2px;
}

.quick-pill {
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 99px;
  color: #e2e8f0;
  text-decoration: none;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.quick-pill:hover {
  background: rgba(255, 255, 255, 0.24);
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.4);
  transform: translateY(-1px);
}

/* --- Section Layout --- */
.landing-section {
  margin-top: 52px;
}

#all-cities {
  scroll-margin-top: calc(var(--nav-height) + 16px);
}

.landing .section-header {
  text-align: left;
  margin-bottom: 20px;
}

.landing .section-title {
  font-size: clamp(20px, 3vw, 24px);
  font-weight: 700;
  color: #0f172a;
  margin: 0 0 6px;
  line-height: 1.3;
}

.landing .section-desc {
  font-size: 14px;
  color: #475569;
  margin: 0;
  line-height: 1.5;
}

.section-header-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 6px;
}

.section-header-row .section-title {
  margin: 0;
}

.featured-location-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  font-weight: 500;
  color: #166534;
  background: #dcfce7;
  padding: 2px 8px;
  border-radius: 12px;
  border: 1px solid #bbf7d0;
}

/* --- Featured Waterway Cards --- */
.landing-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr));
  gap: 18px;
}

.landing-card {
  position: relative;
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.03);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.landing-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 24px -4px rgba(30, 58, 95, 0.1), 0 4px 6px -2px rgba(30, 58, 95, 0.04);
  border-color: #93c5fd;
}

.landing-card:hover .landing-card-title a {
  color: #1e3a5f;
}

.landing-card:hover .landing-card-btn {
  color: #0284c7;
}

.landing-card-top {
  margin-bottom: 12px;
}

.landing-card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.landing-card-location {
  font-size: 12px;
  font-weight: 500;
  color: #64748b;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.landing-card-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 12px;
  background: #f1f5f9;
  color: #475569;
  line-height: 1.4;
  flex-shrink: 0;
  white-space: nowrap;
}

.waterway-type-icon {
  display: inline-block;
  flex-shrink: 0;
  color: currentColor;
}

.landing-card-title {
  font-size: 18px;
  font-weight: 700;
  margin: 0;
  line-height: 1.4;
}

.landing-card-title a {
  color: #0f172a;
  text-decoration: none;
  transition: color 0.15s ease;
}

.landing-card-title a:hover {
  color: #1e3a5f;
}

.landing-card-title a::after {
  content: "";
  position: absolute;
  inset: 0;
}

.landing-card-body {
  margin-bottom: 16px;
}

.landing-card-metric {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 12px;
  background: #f8fafc;
  border-radius: 8px;
  margin-bottom: 10px;
}

.metric-info-col {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.metric-label {
  font-size: 12px;
  color: #64748b;
}

.metric-val {
  font-size: 13px;
  font-weight: 500;
}

.metric-val.is-active {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #166534;
  background: #dcfce7;
  padding: 3px 8px;
  border-radius: 6px;
}

/* 咬钩档位微型圆环能量表 (Mini Conic Arc Gauge) */
.mini-bite-gauge {
  display: inline-block;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  flex-shrink: 0;
  position: relative;
  overflow: hidden;
  background: conic-gradient(
    from 0deg,
    var(--gauge-color, #166534) var(--bite-pct, 0%),
    rgba(148, 163, 184, 0.28) 0
  );
  -webkit-mask: radial-gradient(farthest-side, transparent calc(100% - 2.5px), #fff calc(100% - 2px));
  mask: radial-gradient(farthest-side, transparent calc(100% - 2.5px), #fff calc(100% - 2px));
}

.mini-bite-gauge::after {
  content: "";
  position: absolute;
  inset: 2.5px;
  border-radius: 50%;
  background: var(--gauge-inner-bg, #dcfce7);
}

@supports (mask: radial-gradient(farthest-side, transparent 1px, #fff 2px)) or (-webkit-mask: radial-gradient(farthest-side, transparent 1px, #fff 2px)) {
  .mini-bite-gauge::after {
    display: none;
  }
}

.landing .metric-val.metric-high { color: #166534; background: #dcfce7; --gauge-color: #16a34a; --gauge-inner-bg: #dcfce7; }
.landing .metric-val.metric-mid { color: #075985; background: #e0f2fe; --gauge-color: #0284c7; --gauge-inner-bg: #e0f2fe; }
.landing .metric-val.metric-low { color: #92400e; background: #fef3c7; --gauge-color: #d97706; --gauge-inner-bg: #fef3c7; }
.landing .metric-val.metric-poor { color: #991b1b; background: #fee2e2; --gauge-color: #dc2626; --gauge-inner-bg: #fee2e2; }

.metric-val.is-muted {
  color: #475569;
}

/* 24h 走势微折线 (Sparkline) */
.metric-sparkline {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 2px;
  flex-shrink: 0;
}

.metric-sparkline svg {
  display: block;
}

.sparkline-label {
  font-size: 10px;
  color: #94a3b8;
  line-height: 1;
}

/* 优势鱼种与时段情报 */
.landing-card-intel {
  padding: 8px 10px;
  background: #f8fafc;
  border-radius: 8px;
  margin-bottom: 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.intel-species {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  color: #475569;
  flex-wrap: wrap;
}

.intel-label {
  color: #64748b;
  font-size: 11px;
}

.intel-tags {
  display: inline-flex;
  gap: 4px;
  flex-wrap: wrap;
}

.intel-tag {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 4px;
  padding: 1px 5px;
  font-size: 11px;
  font-weight: 600;
  color: #1e3a5f;
  line-height: 1.3;
}

.intel-window {
  display: flex;
}

.intel-window-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  color: #15803d;
  background: #dcfce7;
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid #bbf7d0;
  line-height: 1.3;
}

.landing-card-time {
  font-size: 12px;
  color: #64748b;
  margin: 0;
  line-height: 1.4;
}

.landing-card-stale {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  padding: 1px 6px;
  border-radius: 6px;
  background: #fef3c7;
  color: #92400e;
  margin-right: 6px;
}

.landing .landing-card.is-stale .metric-val.is-active {
  color: #475569;
  background: #f1f5f9;
  --gauge-color: #94a3b8;
  --gauge-inner-bg: #f1f5f9;
}

.landing-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
  z-index: 1;
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px solid #f1f5f9;
}

.badge-stale {
  display: inline-block;
  font-size: 11px;
  font-weight: 500;
  color: #92400e;
  background: #fef3c7;
  padding: 2px 7px;
  border-radius: 4px;
}

.badge-source {
  display: inline-block;
  font-size: 11px;
  font-weight: 500;
  color: #64748b;
  background: #f1f5f9;
  padding: 2px 7px;
  border-radius: 4px;
}

.landing-card-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 40px;
  padding: 6px 0;
  color: #1e3a5f;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: color 0.15s ease;
  box-sizing: border-box;
}

.landing-card-btn:hover {
  color: #0284c7;
  text-decoration: underline;
}

.landing-more-wrap {
  margin-top: 20px;
  text-align: center;
}

.landing-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 40px;
  padding: 8px 20px;
  background: #ffffff;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  color: #334155;
  text-decoration: none;
  transition: all 0.15s ease;
}

.landing-more:hover {
  background: #f8fafc;
  border-color: #94a3b8;
  color: #0f172a;
}

.landing-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 36px 24px;
  background: #ffffff;
  border: 1.5px dashed #cbd5e1;
  border-radius: 12px;
  color: #475569;
  font-size: 14px;
  grid-column: 1 / -1;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.02);
}

.landing-empty-graphic {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 76px;
  height: 76px;
  border-radius: 50%;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  color: #1e3a5f;
  margin-bottom: 14px;
  box-shadow: 0 2px 6px rgba(15, 23, 42, 0.04);
}

.landing-empty-svg {
  display: block;
}

.landing-empty-text {
  margin: 0;
  max-width: 480px;
  line-height: 1.6;
}

.landing-empty-link {
  color: #1e3a5f;
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.landing-empty-link:hover {
  color: #0284c7;
}

/* --- Basin Grid --- */
.landing-basin-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
}

.basin-chip {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  padding: 12px 16px;
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 10px;
  text-decoration: none;
  min-width: 0;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.02);
  transition: all 0.15s ease;
}

.basin-chip:hover {
  border-color: #38bdf8;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(14, 165, 233, 0.1);
}

.basin-name {
  font-size: 14px;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 4px;
}

.basin-sub {
  font-size: 11px;
  color: #64748b;
}

/* --- Cities Directory Grid --- */
.landing-cities {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr));
  gap: 12px;
  align-items: start;
}

.city-group {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 10px;
  overflow: hidden;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.city-group[open] {
  border-color: #cbd5e1;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
}

.city-summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  min-height: 48px;
  font-size: 14px;
  font-weight: 600;
  color: #1e293b;
  cursor: pointer;
  user-select: none;
  list-style: none;
  transition: background 0.15s ease;
}

.city-summary::-webkit-details-marker {
  display: none;
}

.city-summary:hover {
  background: #f8fafc;
}

.city-group-direct {
  display: flex;
}

.city-summary-direct {
  display: flex;
  align-items: center;
  text-decoration: none;
  width: 100%;
  color: #1e293b;
  box-sizing: border-box;
}

.city-summary-direct:hover {
  background: #f8fafc;
}

.city-summary::after {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  border: none;
  border-right: 2px solid #64748b;
  border-bottom: 2px solid #64748b;
  transform: rotate(-45deg);
  transition: transform 0.2s ease;
  margin-left: 10px;
  flex-shrink: 0;
}

.city-group[open] .city-summary::after {
  transform: rotate(45deg);
}

.city-group[open] .city-summary {
  background: #f8fafc;
  border-bottom: 1px solid #f1f5f9;
}

.city-summary.city-summary-direct::after {
  content: "";
  display: inline-block;
  width: 7px;
  height: 7px;
  border: none;
  border-top: 2px solid #64748b;
  border-right: 2px solid #64748b;
  transform: rotate(45deg);
  margin-left: 10px;
  flex-shrink: 0;
  transition: transform 0.15s ease, border-color 0.15s ease;
}

.city-summary.city-summary-direct:hover::after {
  border-color: #166534;
  transform: translateX(2px) rotate(45deg);
}

.city-summary-meta {
  display: inline-flex;
  align-items: center;
  margin-left: auto;
  flex-shrink: 0;
  white-space: nowrap;
}

.summary-count {
  font-size: 12px;
  font-weight: 400;
  color: #475569;
}

.city-list {
  display: flex;
  flex-wrap: wrap;
  list-style: none;
  margin: 0;
  padding: 12px 14px;
  gap: 6px;
  background: #ffffff;
}

.city-item {
  margin: 0;
}

.city-link {
  display: inline-flex;
  align-items: center;
  padding: 7px 12px;
  background: #f1f5f9;
  border-radius: 6px;
  font-size: 13px;
  color: #334155;
  text-decoration: none;
  min-height: 38px;
  box-sizing: border-box;
  transition: all 0.12s ease;
  white-space: nowrap;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
}

.city-link:hover {
  background: #dcfce7;
  color: #15803d;
}

/* --- Mobile Navigation & Responsive Optimizations --- */
@media (max-width: 768px) {
  .landing {
    padding: 16px 16px calc(72px + env(safe-area-inset-bottom, 0px));
  }

  .landing-eyebrow {
    display: none;
  }

  .landing-intro {
    padding: 20px 16px 28px;
    border-radius: 16px;
  }

  .landing-lead {
    margin-bottom: 16px;
  }

  .landing-basin-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
  }

  .landing-cards > .landing-card:nth-child(n + 4) {
    display: none;
  }

  .landing-cities {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
  }

  .city-summary {
    flex-wrap: nowrap;
    padding: 10px 10px;
    gap: 4px;
  }

  .summary-text {
    min-width: 0;
    overflow-wrap: anywhere;
  }

  .city-summary-meta {
    margin-left: auto;
    flex-shrink: 0;
  }

  .summary-count {
    font-size: 11px;
    white-space: nowrap;
  }

  .city-link {
    padding: 6px 10px;
  }
}

/* --- Desktop hero balance --- */
@media (min-width: 1024px) {
  /* 最多 6 张卡片: 固定每行 3 张, 宽屏也不会留下空格 */
  .landing-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 769px) {
  .landing-intro {
    padding: 48px 36px 52px;
  }

  .landing-hero-content {
    max-width: 820px;
    margin: 0 auto;
    text-align: center;
  }

  .landing-lead {
    max-width: none;
  }

  .landing-search-form {
    max-width: 760px;
    margin: 0 auto;
  }

  .landing-search {
    max-width: none;
  }

  .landing-quick-tags {
    justify-content: center;
  }

}

.location-picker {
  text-align: left;
  min-width: 0;
}

.location-switch-link {
  color: #0369a1;
  text-decoration: underline;
  text-underline-offset: 2px;
  font-size: 14px;
  font-weight: 600;
  padding: 6px 0;
}

.location-switch-link:hover {
  color: #075985;
}

.location-picker[open] {
  flex-basis: 100%;
}

.location-switch-link {
  cursor: pointer;
}

#home-region-form:not([hidden]) {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 8px;
  align-items: center;
  padding: 12px 0;
}

#home-region-form select,
#home-region-form button {
  min-width: 0;
  width: 100%;
  min-height: 40px;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  padding: 6px 10px;
  background: #fff;
  color: #0f172a;
  font: inherit;
}

#home-region-form button {
  grid-column: 1 / -1;
  cursor: pointer;
}

.landing-rules-reminder {
  margin: 0 0 16px;
  padding: 10px 14px;
  border: 1px solid #bbf7d0;
  border-radius: 10px;
  background: #f0fdf4;
  color: #14532d;
  font-size: 13px;
  line-height: 1.6;
}

.landing-rules-reminder a {
  display: inline-block;
  color: #15803d;
  font-weight: 700;
  text-decoration: underline;
}

.landing-shortcuts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.landing-shortcuts a {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  min-height: 64px;
  box-sizing: border-box;
  padding: 10px 12px;
  border: 1px solid #e2e8f0;
  border-radius: 10px;
  background: #fff;
  color: #0f172a;
  text-decoration: none;
}

.landing-shortcuts a:hover {
  border-color: #7dd3fc;
  background: #f0f9ff;
}

.landing-shortcuts svg {
  flex-shrink: 0;
  color: #0369a1;
}

.landing-shortcut-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.landing-shortcut-text strong {
  font-size: 15px;
  font-weight: 600;
}

.landing-shortcut-text span {
  color: #64748b;
  font-size: 12px;
  line-height: 1.35;
}

#scoring-guide > summary {
  cursor: pointer;
}

.scoring-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
  gap: 14px;
}

.scoring-card {
  background: var(--fb-surface, #fff);
  border: 1px solid var(--fb-gray-200, #e2e8f0);
  border-radius: 12px;
  padding: 16px 18px;
}

.scoring-title {
  font-weight: 800;
  font-size: 15px;
  color: var(--fb-ink-strong, #0f172a);
  margin-bottom: 4px;
}

.scoring-text {
  margin: 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--fb-gray-text, #64748b);
}

@media (max-width: 768px) {
  .landing-shortcuts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

#scoring-guide > summary::after {
  content: "展开";
  margin-left: 8px;
  color: #0284c7;
  font-size: 13px;
  font-weight: 600;
}

#scoring-guide[open] > summary::after {
  content: "收起";
}