/* Hydro Clean Lab Theme: Light Water Cyan & Ice Flow (浅色水净清爽风格) */
:root {
  --clean-bg: #f3f8fc;
  --clean-surface: #ffffff;
  --clean-surface-subtle: #e8f3fa;
  --clean-surface-card: #ffffff;
  --clean-border: #d4e5f2;
  --clean-border-light: #e6f0f7;

  --water-cyan: #0284c7;
  --water-cyan-glow: rgba(2, 132, 199, 0.15);
  --water-aqua: #0369a1;
  --water-ice: #f0f9ff;
  --water-pill-bg: #e0f2fe;
  --water-deep: #075985;
  --clean-emerald: #059669;
  --clean-amber: #d97706;

  --text-primary: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;
  --white: #ffffff;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;

  --shadow-subtle: 0 1px 3px rgba(15, 23, 42, 0.05);
  --shadow-card: 0 2px 12px rgba(2, 132, 199, 0.06);
  --shadow-hover: 0 8px 24px rgba(2, 132, 199, 0.12);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", sans-serif;
  background-color: var(--clean-bg);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  background-image: radial-gradient(circle at 50% 0%, #e0f2fe 0%, transparent 55%);
}

a {
  color: var(--water-cyan);
  text-decoration: none;
  transition: all 0.2s ease;
}

a:hover {
  color: var(--water-deep);
}

.container {
  max-width: 1260px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.clean-header {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--clean-border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 6px rgba(2, 132, 199, 0.04);
}

.clean-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 74px;
  gap: 20px;
}

.clean-logo-group {
  display: flex;
  align-items: center;
  gap: 14px;
}

.clean-badge-icon {
  background: linear-gradient(135deg, #0284c7, #0ea5e9);
  color: #ffffff;
  font-weight: 900;
  font-size: 20px;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  box-shadow: 0 2px 10px rgba(2, 132, 199, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
}

.clean-title-wrap h1 {
  font-size: 21px;
  font-weight: 800;
  letter-spacing: -0.2px;
  color: #03446a;
  line-height: 1.2;
}

.clean-title-wrap p {
  font-size: 11.5px;
  color: var(--water-cyan);
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: 0.8px;
}

.clean-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.clean-nav-btn {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid transparent;
  padding: 8px 18px;
  border-radius: 99px;
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.18s;
}

.clean-nav-btn:hover, .clean-nav-btn.active {
  background: var(--water-pill-bg);
  color: var(--water-deep);
  border-color: #bae6fd;
}

/* Hero Section */
.clean-hero {
  padding: 48px 0 36px;
  background: #ffffff;
  border-bottom: 1px solid var(--clean-border);
  position: relative;
  overflow: hidden;
}

.clean-hero::after {
  content: "";
  position: absolute;
  top: -80px;
  right: -80px;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(14, 165, 233, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.clean-hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--water-pill-bg);
  border: 1px solid #bae6fd;
  color: var(--water-deep);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 99px;
  margin-bottom: 14px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.clean-hero h2 {
  font-size: 34px;
  font-weight: 800;
  color: #082f49;
  margin-bottom: 12px;
  line-height: 1.25;
}

.clean-hero p {
  font-size: 15.5px;
  color: var(--text-secondary);
  max-width: 880px;
  line-height: 1.65;
}

.clean-stats-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  margin-top: 28px;
  padding-top: 22px;
  border-top: 1px solid var(--clean-border-light);
}

.clean-stat-item {
  display: flex;
  flex-direction: column;
}

.clean-stat-num {
  font-size: 22px;
  font-weight: 900;
  color: var(--water-cyan);
  letter-spacing: -0.3px;
}

.clean-stat-label {
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  font-weight: 600;
}

/* Category Filter Bar */
.clean-filter-bar {
  padding: 16px 0;
  background: #ffffff;
  border-bottom: 1px solid var(--clean-border);
}

.clean-cat-list {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.clean-cat-pill {
  background: var(--clean-surface-subtle);
  border: 1px solid var(--clean-border);
  color: var(--text-secondary);
  padding: 8px 18px;
  border-radius: 99px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s;
}

.clean-cat-pill:hover {
  background: #e0f2fe;
  color: var(--water-deep);
  border-color: #7dd3fc;
}

.clean-cat-pill.active {
  background: linear-gradient(135deg, #0284c7, #0369a1);
  color: #ffffff;
  border-color: #0284c7;
  box-shadow: 0 2px 8px rgba(2, 132, 199, 0.25);
}

/* Matrix Table */
.clean-matrix-card {
  background: var(--clean-surface);
  border: 1px solid var(--clean-border);
  border-radius: var(--radius-md);
  margin: 32px 0;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.clean-matrix-header {
  padding: 18px 22px;
  background: #f8fafc;
  border-bottom: 1px solid var(--clean-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.clean-matrix-header h3 {
  font-size: 16.5px;
  font-weight: 800;
  color: #0f2744;
  display: flex;
  align-items: center;
  gap: 10px;
}

.clean-table-scroll {
  overflow-x: auto;
}

.clean-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
  text-align: left;
}

.clean-table th {
  background: #f1f7fb;
  color: #334e68;
  padding: 13px 18px;
  border-bottom: 1px solid var(--clean-border);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.clean-table td {
  padding: 15px 18px;
  border-bottom: 1px solid var(--clean-border-light);
  vertical-align: middle;
}

.clean-table tr:hover td {
  background: #f0f8fd;
}

.clean-rank-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: var(--radius-sm);
  background: #e2e8f0;
  font-weight: 800;
  font-size: 13.5px;
  color: #1e293b;
}

.clean-rank-badge.top-1 {
  background: linear-gradient(135deg, #0284c7, #38bdf8);
  color: #ffffff;
  box-shadow: 0 2px 6px rgba(2, 132, 199, 0.3);
}

.clean-score-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-weight: 900;
  color: var(--water-deep);
  font-size: 14.5px;
}

.clean-btn-amazon {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #ffffff;
  color: var(--water-deep) !important;
  border: 1px solid var(--water-cyan);
  padding: 7px 15px;
  border-radius: 99px;
  font-weight: 700;
  font-size: 12px;
  white-space: nowrap;
  transition: all 0.2s;
}

.clean-btn-amazon:hover {
  background: var(--water-cyan);
  color: #ffffff !important;
}

/* Review Cards */
.clean-reviews-container {
  display: flex;
  flex-direction: column;
  gap: 28px;
  margin-bottom: 48px;
}

.clean-card {
  background: var(--clean-surface);
  border: 1px solid var(--clean-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: all 0.25s ease;
}

.clean-card:hover {
  border-color: #7dd3fc;
  box-shadow: var(--shadow-hover);
}

.clean-card.featured-pick {
  border: 2px solid var(--water-cyan);
  box-shadow: 0 4px 20px rgba(2, 132, 199, 0.12);
}

.clean-card-header {
  padding: 16px 24px;
  background: #f8fafc;
  border-bottom: 1px solid var(--clean-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.clean-card.featured-pick .clean-card-header {
  background: #f0f9ff;
  border-bottom-color: #bae6fd;
}

.clean-card-title-line {
  display: flex;
  align-items: center;
  gap: 12px;
}

.clean-model-title {
  font-size: 20px;
  font-weight: 800;
  color: #0c4a6e;
}

.clean-award-badge {
  background: #e0f2fe;
  border: 1px solid #7dd3fc;
  color: #0369a1;
  font-size: 11.5px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 99px;
  text-transform: uppercase;
}

.clean-card-price-score {
  display: flex;
  align-items: center;
  gap: 16px;
}

.clean-card-score {
  font-size: 18px;
  font-weight: 900;
  color: var(--water-deep);
}

.clean-card-price {
  font-size: 15px;
  font-weight: 800;
  color: #0f172a;
}

.clean-card-body {
  padding: 24px;
}

.clean-layout-grid {
  display: grid;
  grid-template-columns: 240px 1fr 220px;
  gap: 24px;
  align-items: start;
}

.clean-visual-container {
  background: #f8fafc;
  border: 1px solid var(--clean-border);
  border-radius: var(--radius-sm);
  padding: 22px 16px;
  text-align: center;
}

.clean-svg-bench {
  width: 82px;
  height: 82px;
  margin-bottom: 12px;
}

.clean-spec-label {
  font-size: 11.5px;
  color: var(--water-deep);
  font-weight: 700;
  text-transform: uppercase;
}

/* Benchmark Bar Stack */
.clean-bench-stack {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.clean-bench-row {
  display: grid;
  grid-template-columns: 150px 1fr 50px;
  align-items: center;
  gap: 12px;
  font-size: 12.5px;
}

.clean-bench-name {
  color: #334155;
  font-weight: 600;
}

.clean-bar-track {
  height: 9px;
  background: #e2e8f0;
  border-radius: 99px;
  overflow: hidden;
}

.clean-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, #38bdf8, #0284c7);
  border-radius: 99px;
}

.clean-card.featured-pick .clean-bar-fill {
  background: linear-gradient(90deg, #0ea5e9, #0369a1);
}

.clean-bench-val {
  color: #0c4a6e;
  font-weight: 800;
  text-align: right;
  font-feature-settings: "tnum";
}

/* CTA Column */
.clean-card-cta-box {
  background: #f8fafc;
  border: 1px solid var(--clean-border);
  border-radius: var(--radius-sm);
  padding: 18px;
  text-align: center;
}

.clean-big-score {
  font-size: 38px;
  font-weight: 900;
  color: #0369a1;
  line-height: 1;
}

.clean-score-label {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  font-weight: 700;
  margin-bottom: 14px;
}

.clean-btn-primary {
  display: block;
  background: linear-gradient(135deg, #0284c7, #0369a1);
  color: #ffffff !important;
  font-weight: 800;
  font-size: 14px;
  padding: 11px 14px;
  border-radius: 99px;
  margin-bottom: 9px;
  transition: all 0.2s;
  box-shadow: 0 2px 8px rgba(2, 132, 199, 0.25);
}

.clean-btn-primary:hover {
  background: #0284c7;
}

.clean-btn-outline {
  display: block;
  background: #ffffff;
  color: var(--text-secondary);
  border: 1px solid var(--clean-border);
  font-size: 12px;
  font-weight: 700;
  padding: 8px 10px;
  border-radius: 99px;
  cursor: pointer;
  transition: all 0.2s;
}

.clean-btn-outline:hover {
  background: var(--water-pill-bg);
  color: var(--water-deep);
  border-color: #7dd3fc;
}

.clean-test-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--clean-border-light);
}

.clean-pill-item {
  background: #f8fafc;
  border: 1px solid var(--clean-border);
  padding: 5px 12px;
  border-radius: 99px;
  font-size: 12px;
  color: #334155;
}

.clean-pill-item strong {
  color: #0369a1;
}

.clean-verdict-box {
  margin-top: 18px;
  background: #f0f9ff;
  border-left: 3px solid var(--water-cyan);
  padding: 14px 18px;
  font-size: 13.5px;
  color: #1e293b;
  line-height: 1.6;
  border-radius: 0 4px 4px 0;
}

.clean-verdict-box strong {
  color: #0c4a6e;
}

/* Modal */
.clean-modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(8px);
  z-index: 999;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.clean-modal.open {
  display: flex;
}

.clean-modal-box {
  background: #ffffff;
  border: 1px solid var(--clean-border);
  border-radius: var(--radius-md);
  max-width: 820px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.15);
}

.clean-modal-header {
  padding: 16px 22px;
  background: #f8fafc;
  border-bottom: 1px solid var(--clean-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.clean-modal-header h4 {
  font-size: 17px;
  color: #0f172a;
}

.clean-modal-close {
  background: #ffffff;
  border: 1px solid var(--clean-border);
  color: var(--text-secondary);
  width: 30px;
  height: 30px;
  border-radius: 50%;
  cursor: pointer;
}

.clean-modal-content {
  padding: 24px;
}

/* Footer */
.clean-footer {
  background: #ffffff;
  border-top: 1px solid var(--clean-border);
  padding: 42px 0 26px;
  color: var(--text-muted);
  font-size: 12.5px;
}

.clean-footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 28px;
}

.clean-footer-col h5 {
  color: #0c4a6e;
  font-size: 13.5px;
  margin-bottom: 12px;
  text-transform: uppercase;
  font-weight: 700;
}

.clean-footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.clean-footer-col a {
  color: var(--text-secondary);
}

.clean-footer-col a:hover {
  color: var(--water-cyan);
}

@media (max-width: 960px) {
  .clean-layout-grid {
    grid-template-columns: 1fr;
  }
}