/* ==========================================================================
   陕西榆林煤矿煤矸石充填与采充置换解决方案专用 Scoped 样式表 (Ultra-Premium V3)
   设计风格：国家级工业科技工程质感 · 矿蓝权威底蕴 + 哑光工程金 + 真实DSLR摄影图卡片 + 现代化控制台
   命名空间强隔离：所有规则限定于 .yulin-sol-*、.yulin-calc-*、.yulin-expert-* 等，绝不污染全局
   ========================================================================== */

/* 核心保护：确保所有模块在任何网络与脚本状态下 100% 正常渲染与可见，彻底杜绝无样式白屏或被JS意外隐藏 */
[data-aos],
.yulin-sol-hero,
.yulin-sol-trust-bar,
.yulin-sol-section,
.yulin-calc-card,
.yulin-expert-card,
.yulin-downloads-section,
.yulin-fig {
  opacity: 1 !important;
  transform: none !important;
  visibility: visible !important;
}

:root {
  --ys-deep-0: #040d15;
  --ys-deep-1: #071927;
  --ys-deep-2: #0b1f33;
  --ys-deep-3: #12334d;
  --ys-navy: #1a365d;
  --ys-gold: #d4af37;
  --ys-gold-light: #f6e05e;
  --ys-gold-glow: rgba(212, 175, 55, 0.35);
  --ys-blue: #3182ce;
  --ys-blue-light: #ebf8ff;
  --ys-green: #38a169;
  --ys-paper: #f8fafc;
  --ys-card-bg: #ffffff;
  --ys-text-dark: #1a202c;
  --ys-text-mid: #4a5568;
  --ys-text-light: #718096;
  --ys-border-light: rgba(255, 255, 255, 0.15);
  --ys-border-dark: #e2e8f0;
  --ys-radius-lg: 16px;
  --ys-radius-md: 12px;
  --ys-radius-sm: 8px;
  --ys-shadow-card: 0 12px 35px rgba(4, 13, 21, 0.06);
  --ys-shadow-hover: 0 20px 50px rgba(4, 13, 21, 0.12);
  --ys-transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

/* 主容器 */
.yulin-sol-page {
  background-color: var(--ys-paper);
  color: var(--ys-text-dark);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  line-height: 1.7;
}

.yulin-sol-wrapper {
  overflow-x: hidden;
  width: 100%;
}

.yulin-sol-container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ==================== 1. Hero 首屏大横幅 ==================== */
.yulin-sol-hero {
  position: relative;
  background-color: #061827;
  background-size: cover;
  background-position: center;
  color: #ffffff !important;
  padding: 108px 0 44px !important;
  text-align: center;
  overflow: hidden;
  border-bottom: 2px solid rgba(212, 175, 55, 0.35);
}

.yulin-sol-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(circle at 50% 20%, rgba(212, 175, 55, 0.08) 0%, transparent 60%),
    linear-gradient(180deg, rgba(6, 24, 39, 0.45) 0%, rgba(9, 31, 51, 0.72) 60%, rgba(6, 20, 32, 0.96) 100%);
  pointer-events: none;
  z-index: 1;
}

.yulin-sol-hero .yulin-sol-container {
  position: relative;
  z-index: 2;
  max-width: 1080px;
}

.yulin-sol-hero-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: rgba(212, 175, 55, 0.16);
  border: 1px solid rgba(212, 175, 55, 0.55);
  color: #f6e05e !important;
  padding: 6px 20px;
  border-radius: 999px;
  font-size: 0.86rem;
  font-weight: 700;
  margin-bottom: 20px;
  backdrop-filter: blur(8px);
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.35);
  letter-spacing: 0.5px;
}

.yulin-sol-hero-badge span {
  color: #f6e05e !important;
}

.yulin-sol-hero-title {
  font-size: clamp(1.68rem, 2.7vw, 2.25rem);
  font-weight: 800;
  color: #ffffff !important;
  line-height: 1.32;
  margin: 0 auto 14px;
  max-width: 960px;
  text-shadow: 0 2px 14px rgba(0, 0, 0, 0.7);
  letter-spacing: -0.5px;
}

.yulin-sol-hero-title span {
  color: var(--ys-gold);
  background: linear-gradient(135deg, #f6e05e 0%, #d4af37 60%, #b7950b 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 900;
}

.yulin-sol-hero-desc {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.92) !important;
  max-width: 820px;
  margin: 0 auto 22px;
  line-height: 1.7;
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.6);
}

.yulin-sol-hero-actions {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

/* 通用按钮 */
.yulin-sol-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 700;
  text-decoration: none;
  border-radius: var(--ys-radius-sm);
  transition: var(--ys-transition);
  font-size: 1rem;
  cursor: pointer;
  border: none;
  letter-spacing: 0.3px;
}

.yulin-sol-btn-gold {
  background: linear-gradient(135deg, #d4af37 0%, #b7950b 100%);
  color: #040d15 !important;
  padding: 11px 22px;
  box-shadow: 0 6px 20px rgba(212, 175, 55, 0.35);
  border: 1px solid #d4af37;
  font-weight: 800;
  font-size: 0.92rem;
}

.yulin-sol-btn-gold:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(212, 175, 55, 0.5);
  color: #000000 !important;
}

.yulin-sol-btn-outline {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.35);
  color: #ffffff !important;
  padding: 11px 20px;
  backdrop-filter: blur(8px);
  font-size: 0.92rem;
}

.yulin-sol-btn-outline:hover {
  background: rgba(255, 255, 255, 0.22);
  border-color: #ffffff;
  color: #ffffff !important;
  transform: translateY(-2px);
}

.yulin-btn-sm {
  padding: 8px 16px !important;
  font-size: 0.85rem !important;
}

.yulin-sol-hero-tags {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.85);
}

.yulin-sol-hero-tags span {
  background: rgba(4, 13, 21, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 6px;
  padding: 4px 12px;
  backdrop-filter: blur(6px);
}

/* ==================== 2. 悬浮权威资质条 (Floating Trust Strip) ==================== */
.yulin-sol-trust-bar {
  position: relative;
  z-index: 10;
  margin-top: -24px;
  padding-bottom: 18px;
}

.yulin-sol-trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  background: rgba(13, 31, 50, 0.94);
  border: 1px solid rgba(212, 175, 55, 0.35);
  border-radius: var(--ys-radius-md);
  padding: 14px 20px;
  box-shadow: 0 14px 35px rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(12px);
}

.yulin-sol-trust-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-right: 10px;
  border-right: 1px solid rgba(255, 255, 255, 0.1);
}

.yulin-sol-trust-item:last-child {
  border-right: none;
  padding-right: 0;
}

.yulin-sol-trust-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: rgba(212, 175, 55, 0.15);
  border: 1px solid rgba(212, 175, 55, 0.4);
  color: #f6e05e;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.yulin-sol-trust-item strong {
  display: block;
  font-size: 0.88rem;
  font-weight: 700;
  color: #ffffff;
  line-height: 1.35;
  margin-bottom: 2px;
}

.yulin-sol-trust-item span {
  display: block;
  font-size: 0.74rem;
  color: #94a3b8;
  line-height: 1.4;
}

/* ==================== 3. 标准板块头部 (Section Header) ==================== */
.yulin-sol-section {
  padding: 55px 0;
  position: relative;
}

.yulin-sol-section-header {
  text-align: center;
  max-width: 860px;
  margin: 0 auto 32px;
}

.yulin-sol-eyebrow {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 2px;
  color: var(--ys-gold);
  text-transform: uppercase;
  margin-bottom: 8px;
}

.yulin-sol-h2 {
  font-size: clamp(1.65rem, 2.6vw, 2.1rem);
  font-weight: 800;
  color: var(--ys-navy);
  margin-bottom: 10px;
  line-height: 1.3;
}

.yulin-sol-lead {
  font-size: 0.94rem;
  color: var(--ys-text-mid);
  line-height: 1.7;
}

/* ==================== 4. 投资回报在线速算器卡片 (ROI Calculator) ==================== */
.yulin-calc-card {
  background: linear-gradient(145deg, rgba(13, 33, 56, 0.9) 0%, rgba(6, 19, 33, 0.96) 100%);
  border: 1px solid rgba(212, 175, 55, 0.38);
  border-radius: var(--ys-radius-lg);
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.35);
  padding: 24px 28px;
  margin: 0 auto;
  color: #ffffff;
  backdrop-filter: blur(10px);
}

.yulin-calc-grid {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 28px;
  align-items: stretch;
}

.yulin-calc-inputs {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.yulin-calc-group {
  margin-bottom: 16px;
}

.yulin-calc-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 700;
  color: #e2e8f0;
  font-size: 0.95rem;
  margin-bottom: 8px;
}

.yulin-calc-val-badge {
  background: linear-gradient(135deg, #d4af37, #b7950b);
  color: #040d15;
  font-weight: 800;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.86rem;
  font-family: monospace, system-ui;
  box-shadow: 0 2px 8px rgba(212, 175, 55, 0.3);
}

.yulin-calc-range {
  width: 100%;
  height: 8px;
  border-radius: 4px;
  accent-color: #f6e05e;
  cursor: pointer;
  outline: none;
  margin: 6px 0;
}

.yulin-calc-select {
  width: 100%;
  padding: 12px 14px;
  border-radius: var(--ys-radius-sm);
  border: 1px solid rgba(212, 175, 55, 0.35);
  font-size: 0.9rem;
  background: rgba(5, 17, 29, 0.95);
  color: #f6e05e;
  font-weight: 600;
  outline: none;
}

.yulin-calc-results {
  background: var(--ys-deep-2);
  border: 1px solid rgba(212, 175, 55, 0.45);
  border-radius: var(--ys-radius-md);
  padding: 20px 22px;
  color: #ffffff;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.yulin-calc-res-header h4 {
  color: var(--ys-gold-light);
  font-size: 1.1rem;
  font-weight: 800;
  margin-bottom: 2px;
}

.yulin-calc-res-header p {
  color: #a0aec0;
  font-size: 0.8rem;
  margin-bottom: 14px;
  line-height: 1.45;
}

.yulin-calc-kpi-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 14px;
}

.yulin-calc-kpi-item {
  background: rgba(4, 13, 21, 0.65);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--ys-radius-sm);
  padding: 10px 12px;
  transition: var(--ys-transition);
}

.yulin-calc-kpi-item:hover {
  border-color: rgba(212, 175, 55, 0.4);
  background: rgba(4, 13, 21, 0.85);
}

.yulin-calc-kpi-item small {
  font-size: 0.74rem;
  color: #a0aec0;
  display: block;
  margin-bottom: 2px;
}

.yulin-calc-kpi-item strong {
  font-size: 1.25rem;
  font-weight: 900;
  color: #ffffff;
  display: block;
  font-family: -apple-system, system-ui;
}

.yulin-calc-kpi-item strong.highlight-gold {
  color: var(--ys-gold-light);
}

.yulin-calc-kpi-item strong.highlight-green {
  color: #48bb78;
}

.yulin-calc-roi-box {
  background: rgba(212, 175, 55, 0.12);
  border: 1px dashed rgba(212, 175, 55, 0.5);
  border-radius: var(--ys-radius-sm);
  padding: 10px 14px;
  font-size: 0.82rem;
  color: #e2e8f0;
  margin-bottom: 14px;
  line-height: 1.5;
}

.yulin-calc-roi-box b {
  color: var(--ys-gold-light);
}

.yulin-calc-cta-row {
  display: flex;
  gap: 12px;
}

/* ==================== 5. 工艺图图文规范 (DSLR Figures) ==================== */
.yulin-fig {
  margin: 30px 0;
  border-radius: var(--ys-radius-md);
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
  border: 1px solid var(--ys-border-dark);
  background: #ffffff;
}

.yulin-fig img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  max-height: 520px;
}

.yulin-fig figcaption {
  padding: 14px 20px;
  font-size: 0.9rem;
  color: var(--ys-text-mid);
  background: #f8fafc;
  border-top: 1px solid #edf2f7;
  text-align: center;
  font-weight: 600;
}

/* ==================== 6. 技术对账表格 (Benchmark Table) ==================== */
.yulin-table-container {
  background: #ffffff;
  border: 1px solid var(--ys-border-dark);
  border-radius: var(--ys-radius-md);
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
  margin-top: 24px;
}

.yulin-table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.yulin-compare-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.94rem;
}

.yulin-compare-table th {
  background: var(--ys-navy);
  color: #ffffff;
  padding: 16px 20px;
  font-weight: 700;
  border: 1px solid var(--ys-navy);
}

.yulin-compare-table th.col-paste {
  background: #0f2847;
  color: var(--ys-gold-light);
}

.yulin-compare-table td {
  padding: 16px 20px;
  border-bottom: 1px solid #edf2f7;
  color: #2d3748;
  line-height: 1.6;
}

.yulin-compare-table tr:nth-child(even) {
  background: #f8fafc;
}

.yulin-compare-table td.cell-paste {
  background: rgba(49, 130, 206, 0.05);
  border-left: 2px solid var(--ys-blue);
  border-right: 2px solid var(--ys-blue);
  font-weight: 600;
}

.badge-tag-rec {
  background: var(--ys-gold);
  color: #040d15;
  font-size: 0.72rem;
  padding: 3px 8px;
  border-radius: 4px;
  font-weight: 800;
  margin-left: 8px;
  vertical-align: middle;
}

/* ==================== 7. 技术护城河卡片网格 (Feature Cards) ==================== */
.yulin-cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 24px;
}

.yulin-feature-card {
  background: #ffffff;
  border: 1px solid var(--ys-border-dark);
  border-radius: var(--ys-radius-md);
  padding: 28px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.04);
  transition: var(--ys-transition);
}

.yulin-feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 35px rgba(0, 0, 0, 0.08);
  border-color: rgba(212, 175, 55, 0.5);
}

.yulin-feature-card-icon {
  font-size: 2.2rem;
  margin-bottom: 14px;
  line-height: 1;
}

.yulin-feature-card h3 {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--ys-navy);
  margin-bottom: 10px;
}

.yulin-feature-card p {
  color: var(--ys-text-mid);
  font-size: 0.95rem;
  line-height: 1.65;
  margin-bottom: 16px;
}

.yulin-feature-card-metrics {
  font-size: 0.85rem;
  font-weight: 700;
  color: #2b6cb0;
  background: #ebf8ff;
  border: 1px solid #bee3f8;
  padding: 6px 14px;
  border-radius: 6px;
  display: inline-block;
}

/* ==================== 8. 资料下载中心 (Downloads Section) ==================== */
.yulin-downloads-section {
  background: #edf2f7;
  padding: 75px 0;
}

.yulin-downloads-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.yulin-download-card {
  display: flex;
  gap: 22px;
  background: #ffffff;
  border: 1px solid var(--ys-border-dark);
  border-radius: var(--ys-radius-md);
  padding: 28px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.04);
  align-items: flex-start;
}

.yulin-download-icon {
  font-size: 2.8rem;
  line-height: 1;
  flex-shrink: 0;
}

.yulin-download-content h4 {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--ys-navy);
  margin-bottom: 8px;
}

.yulin-download-content p {
  font-size: 0.9rem;
  color: var(--ys-text-light);
  line-height: 1.6;
  margin-bottom: 18px;
}

.yulin-download-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

/* ==================== 9. 专家闭环卡片 (Expert Authority Card) ==================== */
.yulin-expert-card {
  background: linear-gradient(135deg, #091e31 0%, #102a42 100%);
  border: 1px solid rgba(212, 175, 55, 0.45);
  border-radius: var(--ys-radius-lg);
  padding: 38px;
  color: #ffffff;
  box-shadow: 0 16px 45px rgba(0, 0, 0, 0.18);
}

.yulin-expert-grid {
  display: grid;
  grid-template-columns: 180px 1fr 240px;
  gap: 32px;
  align-items: center;
}

.yulin-expert-avatar-box {
  text-align: center;
}

.yulin-expert-avatar {
  width: 130px;
  height: 130px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center 20%;
  border: 3px solid var(--ys-gold);
  box-shadow: 0 0 22px rgba(212, 175, 55, 0.35);
  margin: 0 auto 12px;
  display: block;
}

.yulin-expert-name {
  font-size: 1.15rem;
  font-weight: 800;
  color: #ffffff;
}

.yulin-expert-title {
  font-size: 0.85rem;
  color: var(--ys-gold);
}

.yulin-expert-info h3 {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--ys-gold-light);
  margin-bottom: 12px;
}

.yulin-expert-info p {
  font-size: 0.95rem;
  color: #cbd5e0;
  line-height: 1.65;
  margin-bottom: 16px;
}

.yulin-expert-checklist {
  list-style: none;
  padding: 0;
  margin: 0;
}

.yulin-expert-checklist li {
  position: relative;
  padding-left: 22px;
  color: #e2e8f0;
  font-size: 0.92rem;
  margin-bottom: 8px;
  line-height: 1.5;
}

.yulin-expert-checklist li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: #48bb78;
  font-weight: 900;
}

.yulin-expert-cta-box {
  background: rgba(4, 13, 21, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--ys-radius-md);
  padding: 24px 18px;
  text-align: center;
}

.yulin-expert-phone-link {
  display: block;
  font-size: 1.35rem;
  font-weight: 900;
  color: var(--ys-gold-light);
  text-decoration: none;
  margin: 6px 0 14px;
  font-family: monospace, system-ui;
  letter-spacing: 0.5px;
}

/* ==================== 10. 微信弹窗 (Modal) ==================== */
.yulin-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(5px);
  z-index: 10000;
  display: none;
  align-items: center;
  justify-content: center;
}

.yulin-modal-content {
  background: #ffffff;
  border-radius: var(--ys-radius-lg);
  padding: 32px;
  max-width: 380px;
  width: 90%;
  text-align: center;
  position: relative;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.3);
}

.yulin-modal-close {
  position: absolute;
  top: 12px;
  right: 14px;
  background: none;
  border: none;
  font-size: 1.3rem;
  color: var(--ys-text-light);
  cursor: pointer;
}

.yulin-modal-qr {
  width: 220px;
  height: 220px;
  margin: 0 auto 14px;
  display: block;
  border-radius: 8px;
  border: 1px solid var(--ys-border-dark);
}

/* ==================== 响应式设计 ==================== */
@media (max-width: 991px) {
  .yulin-sol-trust-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .yulin-sol-trust-item:nth-child(2) {
    border-right: none;
  }
  .yulin-calc-grid {
    grid-template-columns: 1fr;
  }
  .yulin-cards-grid {
    grid-template-columns: 1fr;
  }
  .yulin-downloads-grid {
    grid-template-columns: 1fr;
  }
  .yulin-expert-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .yulin-expert-checklist li {
    text-align: left;
  }
}

@media (max-width: 767px) {
  .yulin-sol-hero {
    padding: 100px 0 60px;
  }
  .yulin-sol-trust-grid {
    grid-template-columns: 1fr;
  }
  .yulin-sol-trust-item {
    border-right: none;
    border-bottom: 1px solid #edf2f7;
    padding-bottom: 12px;
  }
  .yulin-sol-trust-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
  }
  .yulin-calc-kpi-grid {
    grid-template-columns: 1fr;
  }
  .yulin-calc-cta-row {
    flex-direction: column;
  }
}

/* ==========================================================================
   首页第2.5屏：陕西榆林煤矸石治理与采充置换重大专项专属入口 (Screen 2.5 Gateway)
   命名空间强隔离：#home-yulin-gateway, .yulin-gw-*
   ========================================================================== */
#home-yulin-gateway,
.yulin-gateway-section {
  position: relative;
  background: radial-gradient(circle at 50% 15%, rgba(26, 54, 93, 0.85) 0%, rgba(7, 24, 39, 0.98) 70%, #040d15 100%);
  color: #ffffff;
  padding: 85px 0 90px;
  border-top: 1px solid rgba(212, 175, 55, 0.35);
  border-bottom: 2px solid rgba(212, 175, 55, 0.4);
  overflow: hidden;
}

.yulin-gateway-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: 40px 40px;
  pointer-events: none;
  opacity: 0.7;
}

.yulin-gw-container {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* 头部标头 */
.yulin-gw-head {
  text-align: center;
  max-width: 880px;
  margin: 0 auto 46px;
}

.yulin-gw-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(212, 175, 55, 0.16);
  border: 1px solid rgba(212, 175, 55, 0.55);
  color: #f6e05e !important;
  padding: 6px 20px;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 700;
  margin-bottom: 18px;
  letter-spacing: 0.5px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.yulin-gw-title {
  font-size: 2.25rem;
  font-weight: 800;
  color: #ffffff;
  line-height: 1.35;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.yulin-gw-title span {
  color: #f6e05e;
  text-shadow: 0 2px 14px rgba(246, 224, 94, 0.25);
}

.yulin-gw-lead {
  font-size: 1.05rem;
  color: #cbd5e1;
  line-height: 1.7;
}

/* 4大问题交互初筛与地质剖面矢量双栏网格 */
.yulin-gw-main-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 24px;
  align-items: stretch;
  margin-bottom: 36px;
}

.yulin-gw-left-col {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.yulin-gw-triage-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-bottom: 18px;
}

.yulin-gw-card {
  background: rgba(14, 38, 64, 0.65);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 12px;
  padding: 18px 16px;
  text-align: left;
  cursor: pointer;
  transition: all 0.25s ease;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  outline: none;
}

.yulin-gw-card:hover {
  border-color: rgba(212, 175, 55, 0.7);
  background: rgba(20, 52, 85, 0.85);
  transform: translateY(-3px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.28);
}

.yulin-gw-card.active,
.yulin-gw-card[aria-pressed="true"] {
  background: linear-gradient(145deg, rgba(212, 175, 55, 0.22) 0%, rgba(14, 42, 70, 0.95) 100%);
  border: 2px solid #d4af37;
  box-shadow: 0 0 22px rgba(212, 175, 55, 0.35);
}

.yulin-gw-card-no {
  font-family: monospace, system-ui;
  font-size: 0.75rem;
  font-weight: 700;
  color: #f6e05e;
  letter-spacing: 1px;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.yulin-gw-card-icon {
  width: 32px;
  height: 32px;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  color: #f6e05e;
}

.yulin-gw-card-icon svg {
  width: 28px;
  height: 28px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.6;
}

.yulin-gw-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 6px;
  line-height: 1.4;
}

.yulin-gw-card p {
  font-size: 0.82rem;
  color: #94a3b8;
  line-height: 1.5;
  margin: 0;
}

/* 右侧地质剖面矢量图展示框架 */
.yulin-gw-visual {
  position: relative;
  border: 1px solid rgba(212, 175, 55, 0.4);
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(20, 44, 66, 0.8) 0%, rgba(7, 21, 35, 0.98) 100%);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.yulin-gw-visual-header {
  padding: 12px 18px;
  background: rgba(5, 17, 29, 0.9);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.75rem;
  color: #94a3b8;
}

.yulin-gw-visual-header span b {
  color: #f6e05e;
}

.yulin-gw-visual-svg {
  width: 100%;
  flex: 1;
  min-height: 360px;
  display: block;
}

.yulin-gw-visual-footer {
  padding: 10px 18px;
  background: rgba(5, 17, 29, 0.92);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.75rem;
  color: #cbd5e1;
}

.yulin-gw-visual-footer span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.yulin-gw-visual-dot-gold {
  width: 8px;
  height: 8px;
  background: #f6e05e;
  border-radius: 50%;
  box-shadow: 0 0 8px #f6e05e;
  display: inline-block;
}

.yulin-gw-visual-dot-cyan {
  width: 8px;
  height: 8px;
  background: #38bdf8;
  border-radius: 50%;
  box-shadow: 0 0 8px #38bdf8;
  display: inline-block;
}

/* 初筛输出建议卡片 */
.yulin-gw-output {
  background: rgba(9, 28, 48, 0.9);
  border: 1px solid rgba(212, 175, 55, 0.45);
  border-radius: 12px;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.3);
}

.yulin-gw-output-content {
  flex: 1;
}

.yulin-gw-output-badge {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 1px;
  color: #f6e05e;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.yulin-gw-output-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 8px;
}

.yulin-gw-output-desc {
  font-size: 0.95rem;
  color: #cbd5e1;
  line-height: 1.6;
  margin: 0;
}

.yulin-gw-output-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 210px;
}

.yulin-gw-btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: linear-gradient(135deg, #d4af37 0%, #f6e05e 100%);
  color: #0b1f33 !important;
  font-weight: 800;
  font-size: 0.95rem;
  padding: 12px 20px;
  border-radius: 8px;
  text-decoration: none;
  box-shadow: 0 6px 18px rgba(212, 175, 55, 0.35);
  transition: all 0.25s ease;
  white-space: nowrap;
}

.yulin-gw-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(212, 175, 55, 0.5);
  color: #040d15 !important;
}

.yulin-gw-btn-phone {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #ffffff !important;
  font-size: 0.88rem;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 8px;
  text-decoration: none;
  transition: all 0.25s ease;
}

.yulin-gw-btn-phone:hover {
  background: rgba(255, 255, 255, 0.16);
  border-color: #ffffff;
}

/* 四阶段工程闭环交付流程 */
.yulin-gw-flow {
  background: rgba(7, 21, 36, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 14px;
  padding: 30px;
  margin-bottom: 36px;
}

.yulin-gw-flow-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 22px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding-bottom: 14px;
}

.yulin-gw-flow-head h4 {
  font-size: 1.15rem;
  font-weight: 800;
  color: #ffffff;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 10px;
}

.yulin-gw-flow-head span {
  font-size: 0.85rem;
  color: #94a3b8;
}

.yulin-gw-flow-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  position: relative;
}

.yulin-gw-flow-step {
  position: relative;
  padding: 16px;
  background: rgba(255, 255, 255, 0.03);
  border-left: 3px solid #d4af37;
  border-radius: 0 8px 8px 0;
}

.yulin-gw-flow-step-no {
  font-size: 0.8rem;
  font-weight: 800;
  color: #f6e05e;
  margin-bottom: 6px;
  letter-spacing: 0.5px;
}

.yulin-gw-flow-step h5 {
  font-size: 0.98rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 6px;
}

.yulin-gw-flow-step p {
  font-size: 0.82rem;
  color: #94a3b8;
  line-height: 1.5;
  margin: 0;
}

/* 弹药库专属下载卡片 */
.yulin-gw-ammo-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.yulin-gw-ammo-card {
  display: flex;
  align-items: center;
  gap: 18px;
  background: rgba(14, 38, 64, 0.7);
  border: 1px solid rgba(212, 175, 55, 0.35);
  border-radius: 12px;
  padding: 20px 24px;
  text-decoration: none;
  transition: all 0.25s ease;
}

.yulin-gw-ammo-card:hover {
  background: rgba(20, 52, 85, 0.9);
  border-color: #f6e05e;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.yulin-gw-ammo-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}

.yulin-gw-ammo-card.excel .yulin-gw-ammo-icon {
  background: rgba(34, 197, 94, 0.2);
  color: #4ade80;
  border: 1px solid rgba(34, 197, 94, 0.4);
}

.yulin-gw-ammo-card.pdf .yulin-gw-ammo-icon {
  background: rgba(239, 68, 68, 0.2);
  color: #f87171;
  border: 1px solid rgba(239, 68, 68, 0.4);
}

.yulin-gw-ammo-info {
  flex: 1;
}

.yulin-gw-ammo-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  color: #f6e05e;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.yulin-gw-ammo-title {
  font-size: 0.98rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 4px;
  line-height: 1.4;
}

.yulin-gw-ammo-meta {
  font-size: 0.78rem;
  color: #94a3b8;
  display: flex;
  gap: 12px;
}

.yulin-gw-ammo-arrow {
  color: #d4af37;
  font-size: 1.2rem;
  font-weight: 900;
  transition: transform 0.2s ease;
}

.yulin-gw-ammo-card:hover .yulin-gw-ammo-arrow {
  transform: translateX(4px);
  color: #f6e05e;
}

/* 响应式断点适配 */
@media (max-width: 1024px) {
  .yulin-gw-main-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .yulin-gw-visual {
    min-height: 360px;
  }
  .yulin-gw-visual-svg {
    min-height: 320px;
  }
}

@media (max-width: 991px) {
  .yulin-gw-flow-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .yulin-gw-output {
    flex-direction: column;
    text-align: center;
  }
  .yulin-gw-output-actions {
    width: 100%;
  }
  .yulin-gw-ammo-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 767px) {
  .yulin-gateway-section {
    padding: 60px 0;
  }
  .yulin-gw-title {
    font-size: 1.65rem;
  }
  .yulin-gw-triage-grid {
    grid-template-columns: 1fr;
  }
  .yulin-gw-flow-grid {
    grid-template-columns: 1fr;
  }
}

/* 2.5 屏 3D 地质工程切片大图展示（完整呈现不裁剪） */
.yulin-gw-img-wrap {
  position: relative;
  width: 100%;
  background: #040d15;
  overflow: hidden;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.yulin-gw-img {
  width: 100%;
  height: auto;
  aspect-ratio: 1024 / 572;
  object-fit: contain;
  display: block;
  transition: transform 0.4s ease;
}

.yulin-gw-visual:hover .yulin-gw-img {
  transform: scale(1.015);
}

/* 剖面大图下方的实时遥测与采充关键工程指标面板 */
.yulin-gw-telemetry-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  padding: 12px 16px;
  background: rgba(7, 21, 35, 0.95);
  border-top: 1px solid rgba(255, 255, 255, 0.04);
}

.yulin-gw-telemetry-item {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 8px;
  padding: 8px 12px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  transition: all 0.25s ease;
}

.yulin-gw-telemetry-item:hover {
  background: rgba(212, 175, 55, 0.08);
  border-color: rgba(212, 175, 55, 0.3);
}

.yulin-gw-telemetry-item .telem-label {
  font-size: 0.72rem;
  color: #94a3b8;
}

.yulin-gw-telemetry-item .telem-val {
  font-size: 1.12rem;
  font-weight: 700;
  color: #f6e05e;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, monospace;
}

.yulin-gw-telemetry-item .telem-desc {
  font-size: 0.68rem;
  color: #64748b;
}


/* 关于我模块下方的全矿井总包交付能力矩阵 */
.about-system-caps {
  margin-top: 24px;
  padding: 16px 20px;
  background: rgba(15, 34, 53, 0.7);
  border: 1px solid rgba(212, 175, 55, 0.28);
  border-radius: 12px;
  backdrop-filter: blur(8px);
}

.about-system-caps .caps-label {
  display: block;
  font-size: 0.76rem;
  font-weight: 700;
  color: #f6e05e;
  letter-spacing: 0.8px;
  margin-bottom: 10px;
}

.about-system-caps .caps-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.about-system-caps .caps-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 6px;
  font-size: 0.8rem;
  color: #cbd5e1;
  text-decoration: none;
  transition: all 0.25s ease;
}

.about-system-caps .caps-pill span {
  font-size: 0.7rem;
  font-weight: 700;
  color: #38bdf8;
  font-family: monospace;
}

.about-system-caps .caps-pill:hover {
  background: rgba(212, 175, 55, 0.2);
  border-color: #f6e05e;
  color: #fff;
  transform: translateY(-2px);
}


.yulin-gw-img-vertical {
  width: 100%;
  height: auto;
  aspect-ratio: 819 / 1024;
  object-fit: contain;
  display: block;
}

/* 陕北采充工程指标横向通栏 (Engineering Metrics Ribbon) */
.yulin-gw-metrics-ribbon {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 24px;
  margin-bottom: 24px;
}

.yulin-gw-metrics-ribbon .yulin-gw-telemetry-item {
  background: rgba(15, 34, 53, 0.7);
  border: 1px solid rgba(212, 175, 55, 0.3);
  border-radius: 12px;
  padding: 14px 18px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  backdrop-filter: blur(8px);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.yulin-gw-metrics-ribbon .yulin-gw-telemetry-item:hover {
  background: rgba(20, 48, 77, 0.85);
  border-color: #f6e05e;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(212, 175, 55, 0.15);
}

.yulin-gw-metrics-ribbon .telem-label {
  font-size: 0.78rem;
  color: #94a3b8;
  font-weight: 500;
  letter-spacing: 0.5px;
}

.yulin-gw-metrics-ribbon .telem-val {
  font-size: 1.45rem;
  font-weight: 800;
  color: #f6e05e;
  letter-spacing: -0.5px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, monospace;
}

.yulin-gw-metrics-ribbon .telem-desc {
  font-size: 0.75rem;
  color: #cbd5e1;
  opacity: 0.85;
}

@media (max-width: 991px) {
  .yulin-gw-metrics-ribbon {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
}

@media (max-width: 480px) {
  .yulin-gw-metrics-ribbon {
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
  }
  .yulin-gw-metrics-ribbon .telem-val {
    font-size: 1.2rem;
  }
  .yulin-gw-metrics-ribbon .yulin-gw-telemetry-item {
    padding: 10px 12px;
  }
}

/* 移动端排版精修补强 (Mobile Polishing Patch 20261017) */
@media (max-width: 767px) {
  .yulin-gw-flow-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  .yulin-gw-flow-head h4 {
    font-size: 1.05rem;
    line-height: 1.4;
  }
  .yulin-gw-flow-head span {
    font-size: 0.8rem;
    line-height: 1.4;
    color: #94a3b8;
  }
  .yulin-gw-visual-header {
    padding: 10px 14px;
    font-size: 0.72rem;
    gap: 8px;
  }
  .yulin-gw-visual {
    margin-top: 10px;
    max-width: 100%;
  }
}