/* 基础样式（复用原有变量+重置） */
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
      font-family: 'Inter', system-ui, sans-serif;
    }
    :root {
      --primary-color: #ff4900;
      --primary-light: #fff5f0;
      --secondary-color: #4A90E2;
      --secondary-light: #f0f7ff;
      --dark-color: #1D2129;
      --gray-color: #4E5969;
      --light-gray: #F2F3F5;
      --white-color: #FFFFFF;
      --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
      --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.12);
      --transition: all 0.3s ease;
      --border-radius: 8px;
    }
    body {
      color: var(--dark-color);
      background-color: var(--white-color);
      line-height: 1.6;
      padding-top: 72px;
    }
    a {
      text-decoration: none;
      color: inherit;
      transition: var(--transition);
    }
    ul, ol { 
      list-style: none;
      padding-left: 0;
    }
    .container {
      width: 100%;
      max-width: 1600px;
      margin: 0 auto;
      padding: 0 20px;
    }
    .section { 
      padding: 80px 0;
      position: relative;
    }
    .btn {
      display: inline-block;
      padding: 12px 28px;
      background-color: var(--primary-color);
      color: var(--white-color);
      border-radius: var(--border-radius);
      font-weight: 600;
      font-size: 15px;
      transition: var(--transition);
      border: none;
      cursor: pointer;
    }
    .btn:hover { 
      background-color: #e04000;
      transform: translateY(-2px);
      box-shadow: var(--shadow-hover);
    }
    .btn-outline {
      background-color: transparent;
      color: var(--primary-color);
      border: 1px solid var(--primary-color);
      margin-left: 12px;
    }
    .btn-outline:hover {
      background-color: var(--primary-color);
      color: var(--white-color);
    }

    /* 页面头部 */
    .solutions-header {
      background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), 
                  url('../img/Solution/solutions-banner.webp') no-repeat center center;
      background-size: cover;
      color: var(--white-color);
      padding: 120px 0 80px;
      text-align: center;
      position: relative;
    }
    .solutions-header .container {
      position: relative;
      z-index: 2;
    }
    .solutions-header h1 {
      font-size: 48px;
      font-weight: 800;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
      text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    }
    .solutions-header p {
      font-size: 18px;
      opacity: 0.95;
      max-width: 800px;
      margin: 0 auto 40px;
      line-height: 1.8;
      text-shadow: 0 1px 5px rgba(0, 0, 0, 0.2);
    }

    /* 解决方案筛选导航 */
    .solutions-nav {
      background-color: var(--white-color);
      border-bottom: 1px solid rgba(0,0,0,0.08);
      position: sticky;
      top: 72px;
      z-index: 99;
      box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    }
    .solutions-nav-container {
      max-width: 1600px;
      margin: 0 auto;
      padding: 0 20px;
      overflow-x: auto;
      -webkit-overflow-scrolling: touch;
    }
    .solutions-nav-list {
      display: flex;
      gap: 2px;
      white-space: nowrap;
      padding: 0;
    }
    .solutions-nav-item {
      padding: 18px 28px;
      font-size: 15px;
      font-weight: 500;
      color: var(--gray-color);
      cursor: pointer;
      transition: var(--transition);
      border-bottom: 3px solid transparent;
      position: relative;
    }
    .solutions-nav-item:hover {
      color: var(--primary-color);
      background-color: var(--primary-light);
    }
    .solutions-nav-item.active {
      color: var(--primary-color);
      border-bottom-color: var(--primary-color);
      background-color: var(--primary-light);
    }
    .solutions-nav-item .icon {
      margin-right: 8px;
      font-size: 14px;
    }

    /* 解决方案内容 */
    .solution-content {
      padding: 80px 0;
      background-color: var(--white-color);
    }

    /* 解决方案标题区 */
    .solution-title-section {
      text-align: center;
      margin-bottom: 60px;
      padding-bottom: 30px;
      border-bottom: 1px solid rgba(0,0,0,0.1);
    }
    .solution-number {
      display: inline-block;
      width: 60px;
      height: 60px;
      background: linear-gradient(135deg, var(--primary-color), #ff6a33);
      color: var(--white-color);
      border-radius: 50%;
      font-size: 24px;
      font-weight: 700;
      line-height: 60px;
      margin-bottom: 20px;
      box-shadow: var(--shadow);
    }
    .solution-title-section h2 {
      font-size: 36px;
      margin-bottom: 16px;
      color: var(--dark-color);
    }
    .solution-title-section p {
      color: var(--gray-color);
      font-size: 18px;
      max-width: 800px;
      margin: 0 auto;
      line-height: 1.8;
    }

    /* 行业痛点区块 */
    .industry-painpoints {
      background-color: rgba(255, 255, 255, 0.95);
      border-radius: var(--border-radius);
      padding: 80px 0;
      margin: 80px 0;
      position: relative;
      overflow: hidden;
      color: var(--dark-color);
    }
    .painpoints-content {
      position: relative;
      z-index: 2;
      max-width: 1600px;
      margin: 0 auto;
      padding: 0 20px;
    }
    .painpoints-header {
      text-align: center;
      margin-bottom: 50px;
    }
    .painpoints-header h3 {
      color: var(--dark-color);
      font-size: 36px;
      margin-bottom: 30px;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 15px;
    }
    .painpoints-header h3 .icon {
      color: var(--primary-color);
      font-size: 32px;
    }
    .painpoints-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
    }
    .painpoint-card {
      background: var(--white-color);
      color: var(--dark-color);
      border-radius: var(--border-radius);
      padding: 32px;
      transition: var(--transition);
      box-shadow: var(--shadow);
      border: 1px solid rgba(0,0,0,0.08);
    }
    .painpoint-card:hover {
      transform: translateY(-8px);
      box-shadow: var(--shadow-hover);
    }
    .painpoint-card:nth-child(1) { border-top: 4px solid #ff6a33; }
    .painpoint-card:nth-child(2) { border-top: 4px solid #ff8c5a; }
    .painpoint-card:nth-child(3) { border-top: 4px solid #ffad80; }
    .painpoint-card:nth-child(4) { border-top: 4px solid #ffcea6; }
    .painpoint-card h4 {
      font-size: 18px;
      margin-bottom: 12px;
      color: var(--dark-color);
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .painpoint-card .number {
      display: inline-flex;
      width: 28px;
      height: 28px;
      background: var(--primary-color);
      color: var(--white-color);
      border-radius: 50%;
      align-items: center;
      justify-content: center;
      font-weight: 600;
      font-size: 14px;
    }
    .painpoint-card p {
      color: var(--gray-color);
      line-height: 1.7;
      font-size: 15px;
    }

    /* 产品矩阵区块 */
    .product-matrix {
      padding: 60px 0;
      background: linear-gradient(to bottom, var(--white-color), var(--light-gray));
      margin-bottom: 80px;
    }
    .matrix-intro {
      text-align: center;
      max-width: 800px;
      margin: 0 auto 60px;
    }
    .matrix-intro h3 {
      font-size: 32px;
      margin-bottom: 20px;
      color: var(--dark-color);
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 15px;
    }
    .matrix-intro h3 .icon {
      color: var(--primary-color);
      font-size: 28px;
    }
    .matrix-intro p {
      color: var(--gray-color);
      font-size: 16px;
      line-height: 1.8;
    }
    .matrix-comparison {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 40px;
      max-width: 1600px;
      margin: 0 auto;
    }
    .matrix-card {
      background: var(--white-color);
      border-radius: var(--border-radius);
      overflow: hidden;
      box-shadow: var(--shadow);
      transition: var(--transition);
      position: relative;
    }
    .matrix-card:hover {
      transform: translateY(-8px);
      box-shadow: var(--shadow-hover);
    }
    .matrix-card.ink { border-top: 6px solid #4A90E2; }
    .matrix-card.lcd { border-top: 6px solid #FF4900; }
    .matrix-image {
      height: 200px;
      overflow: hidden;
      position: relative;
    }
    .matrix-image img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .matrix-card:hover .matrix-image img { transform: scale(1.05); }
    .matrix-tag {
      position: absolute;
      top: 20px;
      right: 20px;
      background: var(--white-color);
      padding: 6px 16px;
      border-radius: 20px;
      font-size: 14px;
      font-weight: 600;
      box-shadow: var(--shadow);
    }
    .matrix-tag.ink-tag { color: #4A90E2; border: 1px solid #4A90E2; }
    .matrix-tag.lcd-tag { color: #FF4900; border: 1px solid #FF4900; }
    .matrix-content {
      padding: 32px;
    }
    .matrix-content h4 {
      font-size: 22px;
      margin-bottom: 16px;
      color: var(--dark-color);
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .matrix-content h4 .icon { font-size: 20px; }
    .matrix-content p {
      color: var(--gray-color);
      font-size: 15px;
      line-height: 1.7;
      margin-bottom: 24px;
    }
    .matrix-features { margin-top: 20px; }
    .matrix-features h5 {
      font-size: 16px;
      color: var(--dark-color);
      margin-bottom: 12px;
      font-weight: 600;
    }
    .feature-list { list-style: none; }
    .feature-item {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      margin-bottom: 12px;
      color: var(--gray-color);
      font-size: 14px;
      line-height: 1.6;
    }
    .feature-item .check-icon {
      color: #4CAF50;
      font-size: 14px;
      flex-shrink: 0;
      margin-top: 4px;
    }

    /* 解决方案架构设计 */
    .solution-architecture {
      background-color: var(--white-color);
      padding: 60px 0;
      margin-bottom: 80px;
    }
    .architecture-header {
      text-align: center;
      margin-bottom: 40px;
    }
    .architecture-header h3 {
      font-size: 32px;
      margin-bottom: 16px;
      color: var(--dark-color);
    }
    .architecture-header p {
      color: var(--gray-color);
      max-width: 800px;
      margin: 0 auto;
      font-size: 16px;
      line-height: 1.8;
    }
    .architecture-layers {
      max-width: 1600px;
      margin: 0 auto;
    }
    .layer-card {
      background: var(--white-color);
      border-radius: var(--border-radius);
      padding: 40px;
      margin-bottom: 30px;
      border: 1px solid rgba(0,0,0,0.08);
      transition: var(--transition);
      box-shadow: var(--shadow);
    }
    .layer-card:hover {
      border-color: var(--primary-color);
      box-shadow: var(--shadow-hover);
    }
    .layer-header {
      display: flex;
      align-items: center;
      gap: 20px;
      margin-bottom: 30px;
      padding-bottom: 20px;
      border-bottom: 2px solid rgba(0,0,0,0.08);
    }
    .layer-icon {
      width: 60px;
      height: 60px;
      background: linear-gradient(135deg, var(--primary-color), #ff6a33);
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--white-color);
      font-size: 24px;
    }
    .layer-header h4 {
      font-size: 24px;
      color: var(--dark-color);
      flex: 1;
    }
    .layer-header .product-tag {
      background: var(--primary-light);
      color: var(--primary-color);
      padding: 6px 16px;
      border-radius: 20px;
      font-size: 14px;
      font-weight: 600;
    }
    .features-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 30px;
    }
    .feature-category {
      background: var(--light-gray);
      padding: 24px;
      border-radius: var(--border-radius);
      border-left: 4px solid var(--primary-color);
    }
    .feature-category h5 {
      font-size: 18px;
      margin-bottom: 16px;
      color: var(--dark-color);
      font-weight: 600;
    }
    .sub-features { list-style: none; }
    .sub-feature-item {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      margin-bottom: 10px;
      color: var(--gray-color);
      font-size: 14px;
      line-height: 1.6;
    }
    .sub-feature-item::before {
      content: "○";
      color: var(--primary-color);
      font-size: 10px;
      margin-top: 5px;
      flex-shrink: 0;
    }
    .sub-feature-item.highlight::before {
      content: "●";
      color: #ff6a33;
      font-size: 12px;
    }

    /* 解决方案区块通用样式 */
    .solution-section {
      display: none;
    }
    .solution-section.active {
      display: block;
      animation: fadeIn 0.5s ease;
    }
    @keyframes fadeIn {
      from { opacity: 0; }
      to { opacity: 1; }
    }

    /* CTA区块 */
    .solution-cta {
      background: linear-gradient(rgba(0, 0, 0, 0.85), rgba(0, 0, 0, 0.85)), 
                  url('../img/support/cta-background.webp') no-repeat center center;
      background-size: cover;
      padding: 100px 0;
      text-align: center;
      color: var(--white-color);
    }
    .cta-content h2 {
      font-size: 36px;
      margin-bottom: 20px;
      font-weight: 700;
    }
    .cta-content p {
      font-size: 18px;
      opacity: 0.9;
      margin-bottom: 40px;
      line-height: 1.8;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }
    .cta-content .cta-buttons {
      display: flex;
      gap: 20px;
      justify-content: center;
      flex-wrap: wrap;
    }
    .cta-btn-primary {
      background-color: var(--primary-color);
      color: var(--white-color);
    }
    .cta-btn-secondary {
      background-color: transparent;
      color: var(--white-color);
      border: 2px solid var(--white-color);
    }

    /* 响应式设计 */
    @media (max-width: 1200px) {
      .solutions-header h1 { font-size: 40px; }
      .solution-title-section h2 { font-size: 32px; }
      .matrix-comparison { grid-template-columns: 1fr; gap: 30px; }
      .features-grid { grid-template-columns: 1fr; }
    }
    @media (max-width: 1024px) {
      .solutions-header { padding: 100px 0 60px; }
      .solutions-header h1 { font-size: 36px; }
      .solutions-header p { font-size: 17px; }
      .solution-title-section h2 { font-size: 28px; }
      .industry-painpoints { padding: 60px 0; }
      .painpoints-grid { grid-template-columns: 1fr; }
      .solutions-nav-item { padding: 14px 20px; font-size: 14px; }
    }
    @media (max-width: 768px) {
      .solutions-header { padding: 80px 0 40px; }
      .solutions-header h1 { font-size: 32px; }
      .solution-title-section h2 { font-size: 26px; }
      .solution-number { width: 50px; height: 50px; font-size: 20px; line-height: 50px; }
      .industry-painpoints { padding: 50px 0; }
      .painpoint-card { padding: 24px; }
      .matrix-content { padding: 24px; }
      .layer-card { padding: 30px; }
      .layer-header { flex-direction: column; align-items: flex-start; gap: 15px; }
      .section { padding: 60px 0; }
      .solutions-nav-list { gap: 0; }
      .solutions-nav-item { padding: 12px 16px; font-size: 13px; }
      .cta-content h2 { font-size: 28px; }
      .cta-content p { font-size: 16px; }
    }
    @media (max-width: 480px) {
      .solutions-header h1 { font-size: 28px; }
      .solution-title-section h2 { font-size: 24px; }
      .matrix-intro h3 { font-size: 26px; }
      .architecture-header h3 { font-size: 26px; }
      .painpoints-header h3 { font-size: 24px; }
      .cta-content h2 { font-size: 24px; }
      .cta-content p { font-size: 15px; }
      .cta-content .cta-buttons { flex-direction: column; align-items: center; }
      .cta-content .btn { width: 80%; text-align: center; }
    }
    body.menu-open { overflow: hidden; }

/* ===== 原内联样式 ===== */
.inline-scenarios-1 { background-color: var(--light-gray); }
.inline-scenarios-2 { margin-top:40px; padding:30px; background:var(--light-gray); border-radius:var(--border-radius); }
.inline-scenarios-3 { margin-bottom:20px; font-size:24px; }
.inline-scenarios-4 { columns:2; column-gap:40px; }
.inline-scenarios-5 { background-color: var(--light-gray); }
.inline-scenarios-6 { background-color: var(--light-gray); }
.inline-scenarios-7 { background-color: var(--light-gray); }
.inline-scenarios-8 { color: white; display: flex; align-items: center; justify-content: center; height: 100%; font-size: 20px; font-weight: 600; }
.inline-scenarios-9 { color: white; display: flex; align-items: center; justify-content: center; height: 100%; font-size: 20px; font-weight: 600; }