/* ============================================
   研发与制造专属样式 (rd.css)
============================================ */

/* 专属变量拓展 */
:root {
  --primary-bg: #EEF5FF;
  --accent-green-light: #e6f9f0;
}

/* 覆盖 page-common.css 中的 banner 样式 */
.page-banner {
  height: 650px;
  overflow: hidden;
}
.banner-grid { position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px); background-size: 60px 60px; }
.banner-badges { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-top: 20px; }
.banner-badge { display: inline-flex; align-items: center; gap: 6px; background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.28); color: #fff; font-size: 0.8rem; padding: 5px 14px; border-radius: 20px; backdrop-filter: blur(4px); }

/* 通用组件拓展 (暗黑版背景、动效) */
.bg-dark-section { background-color: #0e1c2f; position: relative; overflow: hidden; }
.bg-dark-section::before { content: ''; position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px); background-size: 48px 48px; }
.section-eyebrow-light { color: rgba(255,255,255,0.5); }
.section-title.green-bar::after { background: #00c070; }
.section-title.align-left::after { margin-left: 0; }
.section-title-light { color: #fff; }
.section-subtitle-light { color: rgba(255,255,255,0.6); }

/* Scroll reveal 动效 */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.65s ease, transform 0.65s ease; }
.reveal.visible { opacity: 1; transform: none; }
.d1 { transition-delay: 0.1s; } .d2 { transition-delay: 0.2s; }
.d3 { transition-delay: 0.3s; } .d4 { transition-delay: 0.4s; }
.d5 { transition-delay: 0.5s; }

/* ============================================
   Section 1 — 软硬件研发实力
============================================ */
.kpi-bar { display: flex; gap: 0; background: var(--primary); border-radius: var(--radius); overflow: hidden; margin-bottom: 48px; }
.kpi-item { flex: 1; text-align: center; padding: 32px 16px; border-right: 1px solid rgba(255,255,255,0.15); position: relative; }
.kpi-item:last-child { border-right: none; }
.kpi-item::before { content: ''; position: absolute; top: 50%; right: 0; width: 1px; height: 40%; background: rgba(255,255,255,0.15); transform: translateY(-50%); }
.kpi-item:last-child::before { display: none; }
.kpi-num { font-size: 2.2rem; font-family: var(--font-display); font-weight: 800; color: #fff; line-height: 1; margin-bottom: 8px; }
.kpi-label { font-size: 0.85rem; color: rgba(255,255,255,0.8); }

.rd-subsection-title { display: flex; align-items: center; gap: 12px; font-size: 1.15rem; font-weight: 700; color: var(--text-dark); margin-bottom: 32px; }
.rd-subsection-title i { color: var(--primary); font-size: 1.1rem; }
.rd-subsection-title .divider { flex: 1; height: 1px; background: var(--border-light); }

.patent-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; margin-bottom: 64px; }
.patent-card { background: #fff; border: 1px solid #e0e8f8; border-radius: var(--radius); padding: 36px 32px; position: relative; overflow: hidden; transition: var(--transition); box-shadow: 0 4px 16px rgba(0,0,0,0.02); }
.patent-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: linear-gradient(90deg, var(--primary), #0077cc); }
.patent-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); border-color: #c0d4f0; }
.patent-tag { display: inline-block; font-size: 0.75rem; font-weight: 700; background: var(--primary-bg); color: var(--primary); padding: 4px 12px; border-radius: 4px; margin-bottom: 20px; }
.patent-icon { width: 56px; height: 56px; background: var(--primary-bg); border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 1.6rem; color: var(--primary); margin-bottom: 20px; }
.patent-card h5 { font-size: 1.05rem; font-weight: 700; color: var(--text-dark); margin-bottom: 12px; }
.patent-card p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.75; margin: 0; }

.sw-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 30px; }
.sw-card { display: flex; align-items: flex-start; gap: 24px; background: #fff; border: 1px solid var(--border-light); border-radius: var(--radius); padding: 40px 36px; transition: var(--transition); box-shadow: var(--shadow-sm); }
.sw-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); border-color: #c0d4f0; }
.sw-icon-wrap { width: 68px; height: 68px; flex-shrink: 0; background: linear-gradient(135deg, var(--primary-bg) 0%, #dbeafe 100%); color: var(--primary); border-radius: 16px; display: flex; align-items: center; justify-content: center; font-size: 1.75rem; }
.sw-content { flex: 1; }
.sw-content h5 { font-size: 1.15rem; font-weight: 700; color: var(--text-dark); margin-bottom: 12px; line-height: 1.4; }
.sw-content p { font-size: 0.92rem; color: var(--text-muted); line-height: 1.8; margin: 0; }

/* ============================================
   Section 2 — 智造与品控体系
============================================ */
.org-wrap { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow-sm); padding: 40px 32px; border: 1px solid var(--border-light); }
.org-top-node { display: inline-block; background: var(--primary); color: #fff; padding: 11px 30px; border-radius: 8px; font-weight: 700; font-size: 0.95rem; }
.org-line-v { width: 2px; height: 28px; background: #c8d8ee; margin: 0 auto; }
.org-h-line { border-top: 2px solid #c8d8ee; margin: 0 40px; }
.org-branches { display: flex; justify-content: space-around; }
.org-branch { flex: 1; text-align: center; }
.org-branch-v { width: 2px; height: 24px; background: #c8d8ee; margin: 0 auto; }
.org-branch-box { display: inline-flex; align-items: center; gap: 6px; background: var(--primary-bg); color: var(--primary); border: 1px solid #c3d4ee; padding: 8px 18px; border-radius: 8px; font-weight: 600; font-size: 0.88rem; }
.org-branch-subs { margin-top: 12px; }
.org-branch-subs div { font-size: 0.76rem; color: var(--text-muted); line-height: 2; }

.qc-list { display: flex; flex-direction: column; gap: 14px; }
.qc-item { display: flex; align-items: flex-start; gap: 18px; background: #fff; border: 1px solid var(--border-light); border-radius: var(--radius); padding: 20px 24px; transition: var(--transition); }
.qc-item:hover { box-shadow: var(--shadow-sm); border-color: #b8d0f0; }
.qc-num { width: 42px; height: 42px; border-radius: 50%; background: var(--primary); color: #fff; display: flex; align-items: center; justify-content: center; font-family: var(--font-display); font-size: 1rem; font-weight: 700; flex-shrink: 0; }
.qc-item h6 { font-weight: 700; color: var(--text-dark); margin-bottom: 4px; font-size: 0.92rem; }
.qc-item p { font-size: 0.83rem; color: var(--text-muted); margin: 0; line-height: 1.65; }

.workshop-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; grid-template-rows: 230px 230px; gap: 14px; margin-top: 20px; }
.wg-item { border-radius: var(--radius); overflow: hidden; position: relative; }
.wg-item.span-rows { grid-row: span 2; }
.wg-item img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.55s ease; }
.wg-item:hover img { transform: scale(1.06); }
.wg-cap { position: absolute; bottom: 0; left: 0; right: 0; background: linear-gradient(transparent, rgba(0,15,45,0.72)); color: #fff; padding: 20px 16px 13px; font-size: 0.88rem; font-weight: 600; }
.wg-cap small { display: block; font-size: 0.73rem; opacity: 0.8; font-weight: 400; margin-top: 2px; }

/* ============================================
   Section 3 — 极限可靠性实验室
============================================ */
.lab-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; margin-top: 40px; }
.lab-card { background: rgba(255,255,255,0.07); border: 1px solid rgba(255,255,255,0.1); border-radius: 16px; padding: 40px 32px; position: relative; overflow: hidden; transition: var(--transition); }
.lab-card::after { content: attr(data-bg); position: absolute; top: 20px; right: 20px; font-family: var(--font-display); font-size: 4.5rem; font-weight: 900; opacity: 0.05; color: #fff; line-height: 1; }
.lab-card:hover { background: rgba(255,255,255,0.11); transform: translateY(-5px); box-shadow: 0 20px 50px rgba(0,0,0,0.3); }
.lab-icon-box { width: 64px; height: 64px; border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 1.8rem; margin-bottom: 24px; }
.lab-card h5 { font-size: 1.1rem; font-weight: 700; color: #fff; margin-bottom: 12px; }
.lab-card p { font-size: 0.88rem; color: rgba(255,255,255,0.62); line-height: 1.85; margin-bottom: 24px; }
.lab-tag { display: inline-block; background: rgba(255,255,255,0.08); color: #00c070; font-size: 0.8rem; font-weight: 600; padding: 4px 14px; border-radius: 4px; }
.lab-metrics { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; margin-top: 52px; }
.lab-metric { background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.08); border-radius: var(--radius); padding: 28px; text-align: center; }
.lab-metric .n { font-family: var(--font-display); font-size: 2.4rem; font-weight: 800; color: #00c070; display: block; line-height: 1; }
.lab-metric .l { font-size: 0.85rem; color: rgba(255,255,255,0.55); margin-top: 10px; }

/* ============================================
   Section 4 — 深度定制 OEM/ODM
============================================ */
.oem-layer { background: var(--bg-light); border: 1px solid var(--border-light); border-radius: var(--radius); padding: 40px; margin-bottom: 24px; transition: var(--transition); }
.oem-layer:hover { border-color: #b8d0f0; box-shadow: var(--shadow-sm); }
.oem-hd { display: flex; align-items: flex-start; gap: 20px; margin-bottom: 24px; }
.oem-icon-box { width: 56px; height: 56px; border-radius: 12px; flex-shrink: 0; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; color: #fff; }
.oem-icon-box.hw { background: var(--primary); }
.oem-icon-box.sw { background: var(--accent-green); }
.oem-hd-text h5 { font-weight: 700; font-size: 1.1rem; color: var(--text-dark); margin-bottom: 6px; }
.oem-type-tag { font-family: var(--font-en); font-size: 0.75rem; font-weight: 700; letter-spacing: 0.5px; padding: 3px 12px; border-radius: 4px; }
.oem-type-tag.hw { background: var(--primary-bg); color: var(--primary); }
.oem-type-tag.sw { background: var(--accent-green-light); color: var(--accent-green); }
.oem-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.oem-tag { display: inline-flex; align-items: center; gap: 8px; background: #fff; border: 1px solid #d8e6f8; font-size: 0.85rem; color: var(--text-dark); padding: 8px 16px; border-radius: 6px; transition: var(--transition); }
.oem-tag:hover { border-color: var(--primary); color: var(--primary); }
.oem-tag i { color: var(--primary); font-size: 0.75rem; }

.flow-section-title { font-size: 1.15rem; font-weight: 700; color: var(--text-dark); margin: 64px 0 40px; }
.flow-wrap { position: relative; }
.flow-line { position: absolute; top: 31px; left: 32px; right: 32px; height: 2px; background: linear-gradient(90deg, var(--primary) 0%, #0099ff 100%); z-index: 0; }
.flow-steps { display: flex; gap: 0; position: relative; z-index: 1; }
.flow-step { flex: 1; text-align: center; padding: 0 12px; }
.flow-circle { width: 64px; height: 64px; border-radius: 50%; background: linear-gradient(135deg, var(--primary), #0077cc); color: #fff; font-size: 1.5rem; display: flex; align-items: center; justify-content: center; margin: 0 auto 20px; box-shadow: 0 4px 16px rgba(0,71,157,0.3); border: 4px solid #fff; transition: transform 0.25s, box-shadow 0.25s; }
.flow-step:hover .flow-circle { transform: scale(1.1); box-shadow: 0 8px 24px rgba(0,71,157,0.4); }
.flow-step h6 { font-weight: 700; color: var(--text-dark); font-size: 0.95rem; margin-bottom: 8px; }
.flow-step p { font-size: 0.82rem; color: var(--text-muted); margin: 0; line-height: 1.6; }

/* ============================================
   CTA Banner
============================================ */
.cta-section { padding: 96px 0; text-align: center; background: linear-gradient(135deg, var(--primary) 0%, #0066cc 100%); position: relative; overflow: hidden; }
.cta-section::before { content: ''; position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px); background-size: 52px 52px; }
.cta-section .container { position: relative; z-index: 2; }
.cta-section h2 { font-size: 2.4rem; font-weight: 800; color: #fff; margin-bottom: 20px; }
.cta-section p { font-size: 1.1rem; color: rgba(255,255,255,0.8); margin-bottom: 40px; }
.btn-cta-w { display: inline-block; background: #fff; color: var(--primary); font-weight: 700; padding: 16px 44px; border-radius: var(--radius-sm); font-size: 1.05rem; margin: 8px; transition: var(--transition); }
.btn-cta-w:hover { background: #e8f0fe; box-shadow: 0 8px 24px rgba(0,0,0,0.2); color: var(--primary); }
.btn-cta-o { display: inline-block; background: transparent; color: #fff; font-weight: 600; padding: 16px 44px; border-radius: var(--radius-sm); font-size: 1.05rem; border: 2px solid rgba(255,255,255,0.55); margin: 8px; transition: var(--transition); }
.btn-cta-o:hover { background: rgba(255,255,255,0.15); border-color: #fff; color: #fff; }

/* ============================================
   Responsive (研发独立配置)
============================================ */
@media (max-width: 1199px) {
  .patent-grid { grid-template-columns: repeat(2,1fr); }
  .lab-grid { grid-template-columns: repeat(2,1fr); }
  .lab-metrics { grid-template-columns: repeat(3,1fr); }
}
@media (max-width: 991px) {
  .workshop-grid { grid-template-columns: 1fr 1fr; grid-template-rows: auto; }
  .wg-item.span-rows { grid-row: span 1; }
  .sw-grid { grid-template-columns: 1fr; } 
}
@media (max-width: 767px) {
  .patent-grid { grid-template-columns: 1fr; }
  .lab-grid { grid-template-columns: 1fr; }
  .lab-metrics { grid-template-columns: 1fr; gap: 10px; }
  .flow-line { display: none; }
  .flow-steps { flex-wrap: wrap; gap: 24px; }
  .flow-step { flex: 0 0 45%; }
  .kpi-bar { flex-wrap: wrap; }
  .kpi-item { flex: 0 0 50%; border-bottom: 1px solid rgba(255,255,255,0.15); }
  .sw-card { flex-direction: column; gap: 16px; padding: 28px; }
}
@media (max-width: 480px) {
  .flow-step { flex: 0 0 100%; }
  .workshop-grid { grid-template-columns: 1fr; }
}