/**
 * 青岛蓝侬伊尔官网 - 组件样式
 * Hero、数据卡、参数表、案例卡片、资质墙、CTA 条
 * @author 冀忠祥
 */

/* ========== 导航 ========== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(11, 18, 32, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: background var(--transition-normal);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.site-logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.02em;
}

.site-logo span {
  color: var(--color-accent);
}

.nav-main {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-shrink: 0;
}

.nav-main a {
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.8125rem;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-md);
  white-space: nowrap;
  transition: color var(--transition-fast), background var(--transition-fast);
}

.nav-main a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.nav-main a.active {
  color: var(--color-accent);
  background: rgba(25, 195, 125, 0.12);
}

/* 右上角国际化切换（紧凑） */
.i18n-switcher {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-right: var(--space-sm);
  flex-shrink: 0;
}

.i18n-btn {
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.75rem;
  font-weight: 500;
  padding: 2px 6px;
  min-width: 1.5em;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
}

.i18n-btn:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.i18n-btn.is-active {
  color: var(--color-accent);
  font-weight: 600;
}

.i18n-divider {
  color: rgba(255, 255, 255, 0.3);
  font-size: 0.7rem;
  user-select: none;
  line-height: 1;
}

@media (max-width: 768px) {
  .i18n-switcher {
    margin-right: var(--space-xs);
  }
}

/* 移动端导航触发（后续可扩展） */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: #fff;
  padding: var(--space-sm);
  cursor: pointer;
}

@media (max-width: 768px) {
  .nav-toggle { display: block; }
  .nav-main { display: none; }
  .nav-main.is-open {
    display: flex;
    position: absolute;
    top: 64px;
    right: 1rem;
    left: 1rem;
    flex-direction: column;
    align-items: flex-start;
    background: rgba(11, 18, 32, 0.98);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    z-index: 1001;
  }
}

/* ========== Hero ========== */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-bg-dark) 0%, #0d1b2a 50%, #0a1628 100%);
  color: var(--color-text-on-dark);
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  opacity: 0.35;
}

.hero__bg-placeholder {
  background: linear-gradient(135deg, var(--color-bg-dark) 0%, var(--color-primary) 40%, #0d1b2a 100%);
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(11, 18, 32, 0.6) 0%, rgba(11, 18, 32, 0.88) 100%);
}

.hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 1100px;
  margin: 0 auto;
}

.hero__title {
  font-size: var(--text-h1-size);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--space-lg);
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.hero__subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  line-height: 1.6;
  margin-bottom: var(--space-2xl);
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
  color: #fff;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5), 0 2px 8px rgba(0, 0, 0, 0.4), 0 0 24px rgba(0, 0, 0, 0.3);
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  justify-content: center;
}

/* ========== 交替浅色背景区块 ========== */
.section--alt {
  background: var(--color-bg-light, #f8fafb);
}

/* ========== 按钮 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.75rem 1.5rem;
  font-size: 0.9375rem;
  font-weight: 500;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: background var(--transition-normal), transform var(--transition-fast), box-shadow var(--transition-normal);
}

.btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.btn--primary {
  background: var(--color-primary);
  color: #fff;
}

.btn--primary:hover {
  background: var(--color-primary-hover);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(15, 107, 60, 0.35);
}

.btn--accent {
  background: var(--color-accent);
  color: #fff;
}

.btn--accent:hover {
  background: var(--color-accent-hover);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(25, 195, 125, 0.35);
}

.btn--outline-light {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.6);
}

.btn--outline-light:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border-color: #fff;
}

.btn--outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn--outline:hover {
  background: rgba(15, 107, 60, 0.08);
}

/* ========== 区块标题 ========== */
.section-title {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.section-title h2 {
  margin-bottom: var(--space-sm);
}

.section-title .subtitle {
  font-size: var(--text-caption-size);
  color: var(--color-text-muted);
  max-width: 560px;
  margin: 0 auto;
}

.section--dark .section-title .subtitle {
  color: #f1f5f9;
}

/* ========== 产品卡片 ========== */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
}

.product-card {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.product-card:hover {
  transform: var(--hover-lift);
  box-shadow: var(--shadow-lg);
}

.product-card__image {
  aspect-ratio: 16 / 10;
  background: var(--color-border-light);
  background-size: cover;
  background-position: center;
}

.product-card__image--placeholder {
  background: linear-gradient(135deg, #e8f5e9 0%, #c8e6c9 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  font-size: var(--text-caption-size);
}

.product-card__body {
  padding: var(--space-lg);
}

.product-card__title {
  font-size: 1.125rem;
  margin-bottom: var(--space-sm);
}

.product-card__desc {
  font-size: var(--text-caption-size);
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
  line-height: 1.5;
}

.product-card__link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
}

.product-card__link:hover {
  color: var(--color-primary-hover);
}

/* ========== 价值观卡片 ========== */
.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-xl);
}

.value-card {
  text-align: center;
  padding: var(--space-xl);
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.value-card:hover {
  transform: var(--hover-lift);
  box-shadow: var(--shadow-md);
}

.value-card__icon {
  min-width: 64px;
  width: max-content;
  height: 64px;
  margin: 0 auto var(--space-md);
  padding: 0 0.5rem;
  box-sizing: border-box;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  color: #fff;
  white-space: nowrap;
}
/* 英文下单字翻译词较长，缩小字号并保证不溢出绿框 */
html[lang="en"] .value-card__icon {
  font-size: 1.125rem;
}

.value-card__icon img {
  width: 40px;
  height: 40px;
  object-fit: contain;
}

.value-card__title {
  font-size: 1.125rem;
  margin-bottom: var(--space-sm);
}

.value-card__desc {
  font-size: var(--text-caption-size);
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* 价值观卡片为白底，小字需更深以提升与白底对比度 */
.value-card .value-card__desc {
  color: #374151;
}

/* 深色区块内价值观卡片：白底卡片上的标题与描述使用深色文字，与背景明确区分 */
.section--dark .value-card__title {
  color: var(--color-text);
  font-weight: 600;
}

.section--dark .value-card__desc {
  color: var(--color-text-muted);
}

/* ========== 数据条 / Stats ========== */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--space-xl);
  text-align: center;
  padding: var(--space-2xl) 0;
}

.stats-bar__item {
  padding: var(--space-md);
}

.stats-bar__value {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 700;
  color: var(--color-accent);
  font-variant-numeric: tabular-nums;
  margin-bottom: var(--space-xs);
}

.stats-bar__label {
  font-size: var(--text-caption-size);
  color: var(--color-text-muted);
}

.section--dark .stats-bar__label {
  color: rgba(241, 245, 249, 0.7);
}

.section--dark .stats-bar__value {
  color: var(--color-accent);
}

/* ========== 技术六宫格 ========== */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-lg);
}

.tech-item {
  padding: var(--space-lg);
  background: var(--color-bg-card);
  border-radius: var(--radius-md);
  text-align: center;
  border: 1px solid var(--color-border-light);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.tech-item:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.tech-item__icon {
  min-width: 48px;
  width: max-content;
  height: 48px;
  margin: 0 auto var(--space-md);
  padding: 0 0.375rem;
  box-sizing: border-box;
  border-radius: var(--radius-md);
  background: rgba(15, 107, 60, 0.1);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: 1.5rem;
  white-space: nowrap;
}
/* 英文下 Heat/Humid 等词较长，缩小字号并保证不溢出绿框 */
html[lang="en"] .tech-item__icon {
  font-size: 1rem;
}

.tech-item__title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.tech-item__desc {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.4;
}

/* ========== 案例卡片 ========== */
.case-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-xl);
}

.case-card {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.case-card:hover {
  transform: var(--hover-lift);
  box-shadow: var(--shadow-lg);
}

.case-card__image {
  aspect-ratio: 16 / 10;
  background: var(--color-border-light);
  background-size: cover;
  background-position: center;
}

.case-card__image--placeholder {
  background: linear-gradient(135deg, #e0f2fe 0%, #bae6fd 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  font-size: var(--text-caption-size);
}

.case-card__body {
  padding: var(--space-lg);
}

.case-card__tag {
  font-size: 0.75rem;
  color: var(--color-primary);
  font-weight: 500;
  margin-bottom: var(--space-sm);
}

.case-card__title {
  font-size: 1.125rem;
  margin-bottom: var(--space-sm);
}

.case-card__meta {
  font-size: var(--text-caption-size);
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
}

/* ========== 资质墙 ========== */
.credentials-section-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text);
  margin: 2rem 0 1rem;
}
.credentials-section-title:first-of-type {
  margin-top: 0;
}

.credentials-grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-lg);
  justify-content: center;
  align-items: center;
}

.credentials-grid__item {
  width: 280px;
  height: 200px;
  background: var(--color-bg-card);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast);
  cursor: pointer;
}

.credentials-grid__item:hover {
  transform: scale(1.02);
}

.credentials-grid__item img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.credentials-grid__item--placeholder,
.credentials-grid__item.placeholder {
  border: 2px dashed var(--color-border);
  color: var(--color-text-muted);
  font-size: 0.75rem;
  text-align: center;
}

.credentials-grid__item--img span {
  display: none;
}

.credentials-grid__item--img.placeholder span {
  display: block;
  padding: var(--space-sm);
}

/* ========== 图片放大预览（灯箱） ========== */
.img-previewable {
  cursor: zoom-in;
}
.lightbox-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(0, 0, 0, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  box-sizing: border-box;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
}
.lightbox-overlay.is-open {
  opacity: 1;
  visibility: visible;
}
.lightbox-overlay__inner {
  max-width: 95vw;
  max-height: 95vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.lightbox-overlay__inner img {
  max-width: 100%;
  max-height: 90vh;
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: var(--radius-md, 4px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}
.lightbox-overlay__close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 2.5rem;
  height: 2.5rem;
  border: none;
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  font-size: 1.5rem;
  line-height: 1;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease;
}
.lightbox-overlay__close:hover {
  background: rgba(255, 255, 255, 0.25);
}
.lightbox-overlay__caption {
  position: absolute;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.875rem;
  text-align: center;
  max-width: 80%;
}

/* ========== CTA 条 ========== */
.cta-bar {
  background: linear-gradient(135deg, var(--color-primary) 0%, #0d5a32 100%);
  color: #fff;
  padding: var(--space-2xl) var(--section-padding-x);
  text-align: center;
  border-radius: var(--radius-lg);
}

.cta-bar__title {
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
  color: #fff;
}

.cta-bar__desc {
  margin-bottom: var(--space-lg);
  opacity: 0.92;
  font-size: 0.9375rem;
}

.cta-bar__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  justify-content: center;
}

.cta-bar .btn--outline-light {
  border-color: rgba(255, 255, 255, 0.8);
  color: #fff;
}

.cta-bar .btn--outline-light:hover {
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
  border-color: #fff;
}

/* ========== 页脚 ========== */
.site-footer {
  background: var(--color-bg-dark);
  color: var(--color-text-on-dark);
  padding: var(--space-2xl) var(--section-padding-x);
}

.site-footer .container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.site-footer h4 {
  font-size: 0.9375rem;
  margin-bottom: var(--space-md);
  color: #fff;
}

.site-footer a {
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.875rem;
  display: block;
  margin-bottom: var(--space-sm);
}

.site-footer a:hover {
  color: var(--color-accent);
}

.site-footer__bottom {
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  font-size: var(--text-caption-size);
  color: rgba(255, 255, 255, 0.6);
}

/* ========== 参数表 ========== */
.spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
}

.spec-table th,
.spec-table td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border-light);
}

.spec-table th {
  font-weight: 600;
  color: var(--color-text-muted);
  width: 35%;
}

/* 序号列收窄，仅占最小必要宽度 */
.spec-table th:first-child,
.spec-table td:first-child {
  width: 1%;
  white-space: nowrap;
}

.spec-table tr:hover td {
  background: var(--color-bg-card-hover);
}

/* ========== 表单 ========== */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: var(--space-sm);
  color: var(--color-text);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  font-family: inherit;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-card);
  transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(15, 107, 60, 0.15);
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

.form-actions {
  margin-top: var(--space-xl);
}

.form-actions .btn {
  min-width: 140px;
}

/* 双列网格（产品详情、关于、联系等） */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
}

@media (max-width: 768px) {
  .grid-2 {
    grid-template-columns: 1fr;
  }
}

/* ========== 结构化证据模块 ========== */
.image-panel {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-border-light);
  border: 1px solid var(--color-border-light);
}

.image-panel--16-10 {
  aspect-ratio: 16 / 10;
}

.image-panel--4-3 {
  aspect-ratio: 4 / 3;
}

.image-panel--3-1 {
  aspect-ratio: 3 / 1;
}

.image-panel--16-9 {
  aspect-ratio: 16 / 9;
}

.image-panel--square {
  aspect-ratio: 1 / 1;
}

.image-panel__media {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.image-panel__placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-md);
  color: var(--color-text-muted);
  background: linear-gradient(135deg, #eff6ff 0%, #dcfce7 100%);
  font-size: var(--text-caption-size);
}

/* ========== 缩略图画廊（带框卡片 + 点击放大） ========== */
.thumb-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: var(--space-lg);
}

.image-panel--thumb {
  aspect-ratio: 16 / 10;
  cursor: zoom-in;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
}

.image-panel--thumb:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
}

.image-panel--thumb .image-panel__media {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.evidence-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
}

.evidence-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.evidence-card__body {
  padding: var(--space-lg);
}

.evidence-card__title {
  font-size: 1.0625rem;
  margin-bottom: var(--space-sm);
}

.evidence-card__desc {
  font-size: var(--text-caption-size);
  color: var(--color-text-muted);
}

.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.chip {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.625rem;
  border-radius: 999px;
  font-size: 0.75rem;
  color: var(--color-primary);
  background: rgba(15, 107, 60, 0.12);
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-md);
}

.kpi-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
}

.kpi-card__label {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.kpi-card__value {
  margin-top: var(--space-xs);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-primary);
}

.compare-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

.compare-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.compare-card__content {
  padding: var(--space-lg);
}

.compare-card__headline {
  margin-bottom: var(--space-sm);
}

/* 结构型号对比：统一表 + 突出差异 */
.section-lead {
  margin: -0.25rem 0 1.25rem;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.compare-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 2px solid var(--color-border);
  background: var(--color-bg-card);
  margin-bottom: var(--space-md);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

.compare-table {
  width: 100%;
  min-width: 420px;
  border-collapse: collapse;
  font-size: 0.9375rem;
}

.compare-table th,
.compare-table td {
  padding: 0.875rem 1.25rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  border-right: 1px solid var(--color-border);
  vertical-align: middle;
}

.compare-table th:last-child,
.compare-table td:last-child {
  border-right: none;
}

/* 相同参数：跨两列时内容居中，视觉上不偏左 */
.compare-table td[colspan="2"] {
  text-align: center;
  font-weight: 500;
}

.compare-table thead th {
  font-weight: 600;
  color: var(--color-text);
  background: rgba(15, 107, 60, 0.1);
  border-bottom: 2px solid var(--color-border);
}

.compare-table__th--item {
  width: 28%;
  min-width: 10rem;
}

.compare-table__th--type {
  width: 36%;
}

/* 三列等宽（如芽苗菜收益表：黑豆苗/萝卜苗/香椿苗） */
.compare-table--3col .compare-table__th--type,
.compare-table--3col td:nth-child(2),
.compare-table--3col td:nth-child(3),
.compare-table--3col td:nth-child(4) {
  width: 24%;
  box-sizing: border-box;
}

.compare-table--3col td[colspan="3"] {
  text-align: center;
}

.compare-table thead th.compare-table__th--type {
  text-align: center;
}

/* 层架型/网格型两列数据居中 */
.compare-table td:nth-child(2),
.compare-table td:nth-child(3) {
  text-align: center;
}

.compare-table--3col td:nth-child(4) {
  text-align: center;
}

.compare-table tbody tr:hover td {
  background: var(--color-bg-card-hover);
}

/* 差异行：背景与边框强调 */
.compare-table__row--diff td {
  background: rgba(25, 195, 125, 0.08);
  font-weight: 500;
  color: var(--color-primary);
  border-bottom: 1px solid rgba(15, 107, 60, 0.2);
}

.compare-table__row--diff:hover td {
  background: rgba(25, 195, 125, 0.12);
}

.compare-table__row--diff td:first-child {
  color: var(--color-text);
  font-weight: 600;
}

/* 最后一行无底边，避免与容器线重叠 */
.compare-table tbody tr:last-child td {
  border-bottom: none;
}

.compare-table-note {
  margin: 0;
  padding: 0.5rem 0 0;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ========== 单舱收益结构区块（层次与留白重设计） ========== */
.roi-section {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border-light);
}

.roi-section__title {
  margin: 0 0 1.75rem;
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: 0.02em;
}

/* 表格块：标题 + 表 + 底注 为一组，与下方指标区隔开 */
.roi-table-block {
  margin-bottom: 2.5rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--color-border-light);
}

.roi-table-caption {
  margin: 0 0 1.25rem;
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: 0.01em;
}


.roi-table-note {
  margin: 1.25rem 0 0;
  padding: 1rem 1.25rem;
  background: var(--color-bg-light);
  border-radius: var(--radius-md);
  border-left: 4px solid var(--color-primary);
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* 指标卡区域：与表格块拉开距离，网格更疏 */
.roi-kpi-block {
  margin-top: 0.5rem;
}

.kpi-grid--roi {
  gap: 1.25rem;
}

.roi-section .kpi-grid--roi .kpi-card {
  padding: 1.25rem 1.5rem;
}

/* 免责说明：独立成块，弱化视觉权重 */
.roi-disclaimer {
  margin: 2.5rem 0 0;
  padding: 1.25rem 1.5rem;
  background: rgba(0, 0, 0, 0.02);
  border-radius: var(--radius-md);
  border-left: 4px solid var(--color-border);
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

.section-cta {
  margin-top: 2.5rem;
}

.list-plain {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-sm);
}

.list-plain li {
  padding-left: 1rem;
  position: relative;
  color: var(--color-text-muted);
  font-size: var(--text-caption-size);
}

.list-plain li::before {
  content: "";
  width: 0.35rem;
  height: 0.35rem;
  border-radius: 999px;
  background: var(--color-accent);
  position: absolute;
  left: 0;
  top: 0.55rem;
}

.step-flow {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-md);
}

.step-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
}

.step-card__num {
  display: inline-flex;
  width: 1.5rem;
  height: 1.5rem;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: rgba(25, 195, 125, 0.18);
  color: var(--color-primary);
  font-size: 0.75rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.step-card__title {
  margin-bottom: var(--space-xs);
  font-size: 0.95rem;
}

.step-card__desc {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.timeline {
  display: grid;
  gap: var(--space-md);
}

.timeline__item {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: var(--space-md);
  align-items: start;
}

.timeline__time {
  background: rgba(15, 107, 60, 0.08);
  color: var(--color-primary);
  border-radius: var(--radius-md);
  text-align: center;
  padding: 0.5rem;
  font-size: 0.8125rem;
  font-weight: 600;
}

.timeline__content {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
}

.timeline__title {
  font-size: 0.95rem;
  margin-bottom: 0.25rem;
}

.timeline__desc {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

/* 合作方 logo 墙：每行 4 个，8 个校徽两行、企业 logo 两行多一个 */
.logo-wall {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

/* 合作方 logo 默认保持原色，尊重品牌视觉；悬停时高亮边框与轻微上浮 */
.logo-wall img.logo-item {
  width: 100%;
  height: auto;
  aspect-ratio: 320 / 180;
  object-fit: contain;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0.5rem;
  transition: border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.logo-item {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #9ca3af;
  font-size: 0.75rem;
  text-align: center;
  padding: 0.5rem;
  transition: border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.logo-item:hover,
.logo-wall img.logo-item:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.split-highlight {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
}

.split-highlight__title {
  font-size: 1.125rem;
  margin-bottom: var(--space-sm);
}

.split-highlight__desc {
  color: var(--color-text-muted);
  font-size: var(--text-caption-size);
}

/* ========== 合作试点说明区块（含概述与甲乙方分工） ========== */
.coop-pilot {
  position: relative;
  margin-top: var(--space-3xl);
  margin-bottom: var(--space-2xl);
  padding: var(--space-2xl) var(--space-xl);
  background: linear-gradient(160deg, rgba(15, 107, 60, 0.05) 0%, rgba(25, 195, 125, 0.03) 40%, #fff 70%);
  border: 1px solid rgba(15, 107, 60, 0.15);
  border-radius: var(--radius-xl);
  box-shadow: 0 4px 20px rgba(15, 107, 60, 0.05);
}

.coop-pilot__badge {
  position: absolute;
  top: -0.75rem;
  left: 50%;
  transform: translateX(-50%);
  padding: 0.35rem 1rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-primary);
  background: #fff;
  border: 1px solid rgba(15, 107, 60, 0.35);
  border-radius: 999px;
  box-shadow: var(--shadow-sm);
  white-space: nowrap;
}

.coop-pilot__title {
  text-align: center;
  font-size: var(--text-h3-size);
  margin: 0 0 var(--space-lg);
  color: var(--color-text);
}

/* 概述区：依托甲方平台、专属优惠、试点与共赢，与下方分工视觉连贯 */
.coop-pilot__overview {
  max-width: 560px;
  margin: 0 auto var(--space-xl);
  padding: 0 var(--space-md);
}

.coop-pilot__overview-p {
  margin: 0 0 var(--space-sm);
  font-size: 0.9375rem;
  color: var(--color-text);
  line-height: 1.7;
}

.coop-pilot__overview-p:last-of-type {
  margin-bottom: 0;
}

.coop-pilot__overview-discount {
  margin: 0 0 var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-primary);
  background: rgba(15, 107, 60, 0.07);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--color-primary);
  line-height: 1.5;
}

.coop-pilot__intro {
  text-align: center;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin: 0 0 var(--space-lg);
  padding-top: var(--space-lg);
  font-weight: 500;
  letter-spacing: 0.02em;
  border-top: 1px solid rgba(15, 107, 60, 0.12);
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

.coop-pilot__split {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 0;
  align-items: stretch;
  max-width: 720px;
  margin: 0 auto var(--space-xl);
}

.coop-pilot__side {
  padding: var(--space-lg) var(--space-xl);
  border-radius: var(--radius-lg);
  background: #fff;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.coop-pilot__side--partner {
  border-right: none;
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
  border-color: rgba(15, 107, 60, 0.2);
}

.coop-pilot__side--us {
  border-left: none;
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
  border-color: rgba(15, 107, 60, 0.2);
}

.coop-pilot__side-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid rgba(15, 107, 60, 0.2);
}

.coop-pilot__list {
  margin: 0 0 var(--space-md);
  padding-left: 0;
  list-style: none;
  font-size: 0.9375rem;
  color: var(--color-text);
  line-height: 1.7;
}

.coop-pilot__list li {
  position: relative;
  margin-bottom: var(--space-xs);
  padding-left: 1.25rem;
}

.coop-pilot__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  opacity: 0.85;
}

.coop-pilot__side--partner .coop-pilot__list li::before {
  background: var(--color-primary);
}

.coop-pilot__list li:last-child {
  margin-bottom: 0;
}

.coop-pilot__note {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  padding: var(--space-sm) 0 0;
  border-top: 1px dashed var(--color-border-light);
}

.coop-pilot__center {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 2rem;
  background: linear-gradient(180deg, rgba(15, 107, 60, 0.08) 0%, rgba(25, 195, 125, 0.06) 100%);
}

.coop-pilot__connector {
  display: block;
  width: 3px;
  height: 60%;
  min-height: 4rem;
  background: linear-gradient(180deg, var(--color-primary), var(--color-accent));
  border-radius: 2px;
  opacity: 0.7;
}

.coop-pilot__footer {
  text-align: center;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin: 0;
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border-light);
}

@media (max-width: 640px) {
  .coop-pilot {
    padding: var(--space-xl) var(--space-md);
  }

  .coop-pilot__split {
    grid-template-columns: 1fr;
    gap: 0;
    max-width: 100%;
  }

  .coop-pilot__side--partner,
  .coop-pilot__side--us {
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
  }

  .coop-pilot__side--partner {
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
  }

  .coop-pilot__side--us {
    border-top: none;
    border-top-left-radius: 0;
    border-top-right-radius: 0;
  }

  .coop-pilot__center {
    min-width: 100%;
    min-height: 0.5rem;
    background: linear-gradient(90deg, rgba(15, 107, 60, 0.08), rgba(25, 195, 125, 0.06));
  }

  .coop-pilot__connector {
    width: 60%;
    height: 3px;
    min-height: 0;
  }
}

.disclaimer {
  margin-top: var(--space-md);
  padding: 0.75rem 1rem;
  border-left: 4px solid var(--color-warning);
  background: #fffbeb;
  color: #92400e;
  font-size: 0.8125rem;
}

.video-slot {
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  background: #fff;
  text-align: center;
}

.video-slot__title {
  font-size: 1rem;
  margin-bottom: var(--space-sm);
}

.video-slot__desc {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

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

  .timeline__item {
    grid-template-columns: 1fr;
  }
}