/* =========================================================
   Qicheng Tech - 启程+ 科创教育
   蓝白科技企业风 / Blue-White Tech Enterprise Theme
   ========================================================= */

:root {
  --color-primary: #1f5bff;
  --color-primary-dark: #0b42c9;
  --color-primary-light: #4f86ff;
  --color-gradient-primary: linear-gradient(135deg, #1f5bff 0%, #4f86ff 50%, #79a9ff 100%);
  --color-gradient-banner: linear-gradient(135deg, rgba(15, 50, 150, 0.55) 0%, rgba(31, 91, 255, 0.35) 100%);
  --color-bg: #ffffff;
  --color-bg-alt: #f4f8ff;
  --color-bg-light: #f0f5ff;
  --color-text: #1f2a44;
  --color-text-light: #5f6f8c;
  --color-text-muted: #98a4bd;
  --color-border: #e5ecf8;
  --color-shadow: 0 6px 24px rgba(31, 91, 255, 0.08);
  --color-shadow-lg: 0 16px 40px rgba(31, 91, 255, 0.12);
  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 16px;
  --font-sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
body { padding-top: 70px; }
body.admin-bar { padding-top: calc(70px + 32px); }

a { color: inherit; text-decoration: none; }
a:hover { color: var(--color-primary); }
img { max-width: 100%; display: block; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, h5, h6 { margin: 0; font-weight: 700; line-height: 1.3; color: var(--color-text); }
h1 { font-size: 44px; }
h2 { font-size: 32px; }
h3 { font-size: 22px; }
h4 { font-size: 18px; }

.container { width: 1200px; max-width: 92%; margin: 0 auto; }
.container-sm { width: 1000px; max-width: 92%; margin: 0 auto; }

.section { padding: 70px 0; }
.section-alt { background: var(--color-bg-alt); }
.section-light { background: var(--color-bg-light); }

.section-title { text-align: center; margin-bottom: 50px; }
.section-title h2 { font-size: 30px; margin-bottom: 10px; }
.section-title h2 span { color: var(--color-primary); }
.section-title p { color: var(--color-text-light); margin: 0; font-size: 15px; letter-spacing: 2px; }
.section-title-en { color: var(--color-text-muted); font-size: 13px; letter-spacing: 4px; text-transform: uppercase; }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 28px; border-radius: var(--radius);
  background: var(--color-gradient-primary);
  color: #fff !important; font-weight: 600;
  border: none; cursor: pointer;
  box-shadow: 0 8px 20px rgba(31, 91, 255, 0.25);
  transition: all .3s ease;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(31, 91, 255, 0.35); }
.btn-outline {
  background: transparent; color: var(--color-primary) !important;
  border: 2px solid var(--color-primary);
  box-shadow: none;
}
.btn-outline:hover { background: var(--color-primary); color: #fff !important; }
.btn-sm { padding: 8px 18px; font-size: 14px; }
.btn-block { display: flex; width: 100%; }

/* ============== Header / 导航 ============== */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 999;
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 2px 10px rgba(0,0,0,.04);
  backdrop-filter: saturate(180%) blur(10px);
}
.site-header.scrolled { background: #fff; box-shadow: 0 4px 20px rgba(0,0,0,.06); }

.header-inner {
  display: flex; align-items: center; justify-content: flex-start;
  height: 70px;
  gap: 30px;
}
.main-nav-wrap {
  flex: 1 1 auto;
  display: flex;
  justify-content: flex-end;
  min-width: 0;
}
.site-logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 20px; font-weight: 800; color: var(--color-primary);
  flex-shrink: 0;
}
.site-logo img { height: 36px; }

.main-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: nowrap;
  width: auto;
  flex: 1 1 auto;
  min-width: 0;
}
.main-nav > li {
  position: relative;
  padding: 0 10px;
  flex-shrink: 0;
}
.main-nav li { position: relative; }
.main-nav > li > a {
  display: block;
  padding: 0 12px;
  height: 70px;
  line-height: 70px;
  font-size: 14px;
  color: var(--color-text);
  font-weight: 500;
  transition: color .2s;
  position: relative;
  white-space: nowrap;
}
.main-nav > li > a:hover,
.main-nav > li.current-menu-item > a {
  color: var(--color-primary);
}
.main-nav > li.current-menu-item > a::after {
  content: ""; position: absolute;
  left: 50%; bottom: 0; transform: translateX(-50%);
  width: 32px; height: 3px; border-radius: 2px;
  background: var(--color-gradient-primary);
}

/* 子菜单样式 */
.main-nav li ul.sub-menu,
.main-nav li ul {
  display: none;
  position: absolute;
  top: 70px;
  left: 0;
  min-width: 180px;
  background: #fff;
  box-shadow: 0 8px 30px rgba(0,0,0,.12);
  border-radius: 8px;
  padding: 8px 0;
  list-style: none;
  margin: 0;
  z-index: 999;
}
.main-nav li:hover > ul.sub-menu,
.main-nav li:hover > ul {
  display: block;
}
.main-nav li ul.sub-menu li,
.main-nav li ul li {
  padding: 0;
  margin: 0;
  float: none;
  list-style: none;
}
.main-nav li ul.sub-menu li a,
.main-nav li ul li a {
  display: block;
  padding: 10px 18px;
  height: auto;
  line-height: 1.5;
  font-size: 14px;
  color: var(--color-text);
  white-space: nowrap;
}
.main-nav li ul.sub-menu li a:hover,
.main-nav li ul li a:hover {
  background: var(--color-bg-alt);
  color: var(--color-primary);
}

.header-tel {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 18px;
  background: var(--color-gradient-primary);
  border-radius: 30px;
  color: #fff; font-weight: 600; font-size: 14px;
  box-shadow: 0 6px 18px rgba(31, 91, 255, 0.25);
  flex-shrink: 0;
}
.header-tel svg { width: 16px; height: 16px; }

/* ============== Banner ============== */
.page-banner {
  position: relative;
  min-height: 560px;
  margin-top: 70px;
  display: flex; align-items: center;
  background-size: cover; background-position: center;
  overflow: hidden;
}
.page-banner::before {
  content: ""; position: absolute; inset: 0;
  background: var(--color-gradient-banner);
  z-index: 1;
}
.banner-content {
  position: relative; z-index: 2;
  width: 1200px; max-width: 92%; margin: 0 auto;
  color: #fff;
}
.banner-tag {
  display: inline-block;
  padding: 6px 18px; border-radius: 30px;
  background: rgba(255,255,255,0.18);
  border: 1px solid rgba(255,255,255,0.35);
  font-size: 13px; margin-bottom: 22px; letter-spacing: 1px;
}
.banner-title { color: #fff; font-size: 46px; margin-bottom: 14px; letter-spacing: 1px; }
.banner-title small { display: block; font-size: 28px; font-weight: 500; opacity: 0.95; margin-bottom: 10px; }
.banner-subtitle {
  color: rgba(255,255,255,0.92); font-size: 16px; margin-bottom: 34px;
  max-width: 600px; letter-spacing: 0.5px;
}
.banner-btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 34px;
  background: #fff; color: var(--color-primary);
  border-radius: 30px; font-weight: 600; font-size: 15px;
  box-shadow: 0 10px 26px rgba(0,0,0,0.15);
  transition: all .3s;
}
.banner-btn:hover { transform: translateY(-2px); }
.banner-btn-arrow { font-size: 18px; }

/* ============== Contact Block（首页4联系电话） ============== */
.contact-block { padding: 50px 0 0; }
.contact-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
}
.contact-card {
  display: flex; align-items: center; gap: 18px;
  padding: 22px;
  background: #fff; border-radius: var(--radius-lg);
  box-shadow: var(--color-shadow);
  transition: all .3s;
}
.contact-card:hover { transform: translateY(-4px); box-shadow: var(--color-shadow-lg); }
.contact-icon {
  flex-shrink: 0;
  width: 56px; height: 56px; border-radius: 50%;
  background: var(--color-gradient-primary);
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 22px;
}
.contact-icon svg { width: 26px; height: 26px; fill: currentColor; }
.contact-info h4 { font-size: 17px; margin-bottom: 4px; }
.contact-info p { margin: 0; color: var(--color-text-light); font-size: 14px; }

/* ============== Intro Box（一站式企业服务文字+图） ============== */
.intro-box { display: grid; grid-template-columns: 1.1fr 1fr; gap: 50px; align-items: center; }
.intro-list { margin-top: 30px; }
.intro-list li {
  display: flex; align-items: flex-start; gap: 14px;
  padding: 16px 0; border-bottom: 1px dashed var(--color-border);
}
.intro-list li:last-child { border-bottom: none; }
.intro-icon-wrap {
  flex-shrink: 0;
  width: 36px; height: 36px; border-radius: 10px;
  background: #eaf1ff; color: var(--color-primary);
  display: flex; align-items: center; justify-content: center;
}
.intro-icon-wrap svg { width: 18px; height: 18px; }
.intro-list h4 { font-size: 16px; margin-bottom: 4px; }
.intro-list p { margin: 0; color: var(--color-text-light); font-size: 14px; }

.intro-visual { position: relative; }
.intro-visual img {
  border-radius: var(--radius-lg);
  box-shadow: var(--color-shadow-lg);
}
.intro-badges {
  display: flex; gap: 10px; flex-wrap: wrap;
  margin-bottom: 22px;
}
.intro-badge {
  padding: 6px 14px; border-radius: 30px;
  background: #eaf1ff; color: var(--color-primary);
  font-size: 13px; font-weight: 500;
}

/* ============== Service Cards（3/4/6/5张卡片） ============== */
.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}
.service-grid-5 { grid-template-columns: repeat(5, 1fr); }
.service-grid-4 { grid-template-columns: repeat(4, 1fr); }
.service-grid-6 { grid-template-columns: repeat(3, 1fr); }

.service-card {
  padding: 34px 28px;
  background: #fff; border-radius: var(--radius-lg);
  box-shadow: var(--color-shadow);
  text-align: left;
  transition: all .3s;
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: var(--color-gradient-primary);
  transform: scaleX(0); transform-origin: left;
  transition: transform .4s;
}
.service-card:hover { transform: translateY(-6px); box-shadow: var(--color-shadow-lg); }
.service-card:hover::before { transform: scaleX(1); }

.service-card-icon {
  width: 68px; height: 68px; border-radius: 18px;
  background: #eaf1ff; color: var(--color-primary);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 22px;
  transition: all .3s;
}
.service-card:hover .service-card-icon { background: var(--color-gradient-primary); color: #fff; }
.service-card-icon svg { width: 32px; height: 32px; }
.service-card h3 { font-size: 18px; margin-bottom: 10px; }
.service-card p { color: var(--color-text-light); font-size: 14px; margin: 0; line-height: 1.8; }

/* ============== Capability Matrix（AI能力矩阵） ============== */
.matrix-wrap {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 34px;
  box-shadow: var(--color-shadow);
}
.matrix-legend {
  display: flex; justify-content: center; gap: 40px;
  margin-bottom: 30px;
}
.legend-item {
  display: flex; align-items: center; gap: 8px;
  font-size: 14px; color: var(--color-text-light);
}
.legend-dot { width: 12px; height: 12px; border-radius: 50%; }
.legend-dot.g1 { background: #4f86ff; }
.legend-dot.g2 { background: #1f5bff; }
.legend-dot.g3 { background: #0b42c9; }

.matrix-table {
  width: 100%;
  border-collapse: separate; border-spacing: 8px;
}
.matrix-table th {
  padding: 14px 10px;
  background: var(--color-gradient-primary); color: #fff;
  border-radius: var(--radius);
  font-size: 14px; font-weight: 600;
}
.matrix-table th:first-child { background: #fff; color: var(--color-primary); }
.matrix-table td {
  padding: 12px 8px;
  text-align: center; font-size: 13px;
  border-radius: var(--radius);
  background: var(--color-bg-light);
  color: var(--color-text-light);
}
.matrix-table td:first-child {
  background: #eaf1ff;
  color: var(--color-primary);
  font-weight: 600;
}
.matrix-table td.level-1 { background: #eaf1ff; color: var(--color-primary); }
.matrix-table td.level-2 { background: #d3e4ff; color: #1750e0; }
.matrix-table td.level-3 { background: var(--color-primary); color: #fff; }

/* ============== Flow Steps（5步骤） ============== */
.flow-steps {
  display: grid; grid-template-columns: repeat(5, 1fr);
  gap: 0;
  position: relative;
  padding: 20px 0;
}
.flow-steps::before {
  content: ""; position: absolute;
  top: 56px; left: 10%; right: 10%; height: 3px;
  background: linear-gradient(to right, #e5ecf8 0%, var(--color-primary) 50%, #e5ecf8 100%);
  z-index: 0;
}
.flow-step {
  position: relative; z-index: 1;
  text-align: center;
  padding: 0 10px;
}
.flow-step-num {
  width: 72px; height: 72px; border-radius: 50%;
  margin: 0 auto 20px;
  background: var(--color-gradient-primary);
  color: #fff; font-size: 28px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 10px 26px rgba(31, 91, 255, 0.3);
}
.flow-step h4 { font-size: 16px; margin-bottom: 8px; }
.flow-step p { font-size: 13px; color: var(--color-text-light); margin: 0; }

/* ============== Course Level（5级课程） ============== */
.ability-icons {
  display: grid; grid-template-columns: repeat(5, 1fr);
  gap: 30px; margin-bottom: 40px;
}
.ability-icon-item {
  text-align: center;
  padding: 26px 10px;
  background: #fff; border-radius: var(--radius-lg);
  box-shadow: var(--color-shadow);
}
.ability-icon {
  width: 70px; height: 70px; margin: 0 auto 14px;
  border-radius: 20px;
  background: #eaf1ff; color: var(--color-primary);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 16px;
  transition: all .3s;
}
.ability-icon:hover { background: var(--color-gradient-primary); color: #fff; transform: rotate(-6deg); }
.ability-icon-item h4 { font-size: 16px; }

.course-level-grid {
  display: grid; grid-template-columns: repeat(5, 1fr);
  gap: 14px;
  margin-bottom: 22px;
}
.course-level-card {
  border-radius: var(--radius-lg);
  padding: 22px 18px;
  color: #fff;
  text-align: center;
  min-height: 140px;
  position: relative;
  transition: transform .3s;
}
.course-level-card:hover { transform: translateY(-4px); }
.course-level-card .lvl { font-size: 14px; opacity: 0.95; margin-bottom: 8px; letter-spacing: 1px; }
.course-level-card h4 { color: #fff; font-size: 18px; margin-bottom: 6px; }
.course-level-card p { font-size: 13px; margin: 0; opacity: 0.92; }

.course-curriculum {
  display: grid; grid-template-columns: repeat(5, 1fr);
  gap: 14px;
}
.curriculum-col { display: flex; flex-direction: column; gap: 10px; }
.curriculum-col h5 {
  font-size: 13px; font-weight: 600;
  color: var(--color-text-muted);
  padding: 0 4px;
}
.curriculum-chip {
  padding: 12px 14px;
  border-radius: var(--radius);
  font-size: 13px;
  text-align: center;
  color: #fff;
  line-height: 1.4;
}

.c-level-1 { background: linear-gradient(135deg, #79a9ff, #4f86ff); }
.c-level-2 { background: linear-gradient(135deg, #5a96ff, #2f6efc); }
.c-level-3 { background: linear-gradient(135deg, #3e7cff, #1f5bff); }
.c-level-4 { background: linear-gradient(135deg, #2d6bff, #154fd8); }
.c-level-5 { background: linear-gradient(135deg, #1f5bff, #0a3bb4); }

.c-chip-1 { background: #c8daff; color: #1750e0; }
.c-chip-2 { background: #a9c7ff; color: #0f3fb8; }
.c-chip-3 { background: #7faaff; color: #fff; }
.c-chip-4 { background: #4f86ff; color: #fff; }
.c-chip-5 { background: #1f5bff; color: #fff; }

.platform-btn {
  margin-top: 40px; text-align: center;
}
.platform-btn .btn { padding: 16px 44px; font-size: 16px; }

/* ============== Products Center（产品中心） ============== */
.products-section {
  padding-top: 30px;
  padding-bottom: 80px;
  background: #f5f7fb;
  margin-top: 70px;
}
.products-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 32px;
  align-items: start;
}
.products-sidebar {
  align-self: start;
}
.cat-list {
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 2px 16px rgba(31, 91, 255, 0.06);
  overflow: hidden;
  border: 1px solid #edf2fb;
}
.cat-list-header {
  padding: 16px 20px;
  background: var(--color-gradient-primary);
  color: #fff;
  font-weight: 600;
  display: flex; align-items: center; justify-content: space-between;
  cursor: pointer;
  text-decoration: none;
}
.cat-list-header:hover { color: #fff; }
.cat-item {
  padding: 14px 16px;
  border-bottom: 1px solid #f0f4fa;
  display: grid;
  grid-template-columns: 30px 1fr auto;
  align-items: center;
  color: var(--color-text);
  cursor: pointer;
  transition: all .2s;
  font-size: 14px;
  text-decoration: none;
}
.cat-item:hover {
  color: var(--color-primary);
  text-decoration: none;
}
.cat-item.active {
  background: #f5f9ff;
  color: var(--color-primary);
  font-weight: 600;
  border-left: 3px solid var(--color-primary);
}
.cat-item:last-child { border-bottom: none; }

/* 分类图标样式 - 位于左侧 */
.cat-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  margin: 0;
}
.cat-icon svg {
  width: 16px;
  height: 16px;
}

/* 分类箭头 */
.cat-arrow {
  display: inline-block;
  transition: transform .3s;
  color: var(--color-text-muted);
  font-size: 12px;
}
.cat-item.active .cat-arrow,
.cat-list-header.active .cat-arrow {
  transform: rotate(90deg);
}
.cat-list-header .cat-arrow {
  color: rgba(255,255,255,.9);
}

/* 分类文字居中 */
.cat-text {
  text-align: center;
}
.cat-item-arrow {
  display: flex;
  align-items: center;
  color: var(--color-text-muted);
  transition: all .2s;
}
.cat-item:hover .cat-item-arrow,
.cat-item.active .cat-item-arrow {
  color: var(--color-primary);
}

.products-main {
  min-width: 0;
}
.products-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 20px;
  padding: 0;
  border-bottom: 1px solid #e5ecf8;
}
.products-header h3 {
  color: var(--color-text);
  font-size: 18px;
  font-weight: 600;
}
.products-count {
  color: var(--color-text-light);
  font-size: 14px;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.product-card {
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(31, 91, 255, 0.06);
  transition: all .3s;
  cursor: pointer;
  display: flex;
  flex-direction: column;
}
.product-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(31, 91, 255, 0.12);
}
.product-image {
  aspect-ratio: 1 / 1; /* 产品图多为方形，1:1 容器配合 contain 正好铺满无留白 */
  background: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.product-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
}
.product-image img {
  width: 100%;
  height: 100%;
  object-fit: contain; /* 整图完整显示不裁边，不足处由容器背景补白 */
  transition: transform .4s;
}
.product-card:hover .product-image img { transform: scale(1.05); }
.product-info {
  padding: 16px 12px;
  text-align: center;
  border-top: 1px solid #f0f4fa;
  background: #fff;
}
.product-info h4 {
  font-size: 15px;
  margin-bottom: 6px;
  color: var(--color-text);
  font-weight: 600;
}
.product-info p {
  font-size: 13px;
  color: var(--color-primary);
  margin: 0;
}

/* ============== Pagination（分页） ============== */
.pagination {
  margin-top: 40px;
  display: flex;
  justify-content: center;
}
.pagination ul {
  display: flex;
  list-style: none;
  padding: 0;
  margin: 0;
  gap: 8px;
}
.pagination li {
  display: inline-block;
}
.pagination a,
.pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  padding: 0 12px;
  border: 1px solid #e5ecf8;
  border-radius: 6px;
  background: #fff;
  color: var(--color-text);
  font-size: 14px;
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
}
.pagination a:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.pagination .current {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
  font-weight: 600;
}
.pagination .prev,
.pagination .next {
  min-width: auto;
  padding: 0 14px;
}
.pagination .disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ============== About Us（关于我们） ============== */
/* 时间轴 Timeline */
.timeline-wrap {
  position: relative;
  max-width: 1100px; margin: 0 auto;
  padding: 20px 0 60px;
}
.timeline-line {
  position: absolute;
  left: 50px; right: 50px; top: 50%;
  height: 3px;
  background: linear-gradient(to right, #d3e4ff, var(--color-primary), #d3e4ff);
  border-radius: 2px;
  z-index: 0;
}
.timeline-items {
  display: flex; justify-content: space-between;
  position: relative; z-index: 1;
}
.timeline-item {
  width: 140px;
  text-align: center;
  position: relative;
}
.timeline-dot {
  width: 18px; height: 18px; border-radius: 50%;
  background: #fff;
  border: 4px solid var(--color-primary);
  margin: 52px auto 20px;
  box-shadow: 0 0 0 6px rgba(31,91,255,0.15);
}
.timeline-item:nth-child(even) .timeline-dot { margin-top: 0; margin-bottom: 20px; order: -1; }
.timeline-year {
  font-size: 22px; font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 6px;
}
.timeline-text { font-size: 13px; color: var(--color-text-light); }
.timeline-center-img {
  display: block; margin: -20px auto 40px;
  width: 240px;
  border-radius: var(--radius-lg);
  box-shadow: var(--color-shadow-lg);
}

/* 6方案圆环 */
.solutions-diagram {
  position: relative;
  width: 580px; height: 580px;
  max-width: 100%;
  margin: 0 auto;
}
.sol-center {
  position: absolute; left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  width: 150px; height: 150px; border-radius: 50%;
  background: var(--color-gradient-primary);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  text-align: center;
  font-weight: 700; font-size: 20px;
  box-shadow: 0 20px 50px rgba(31,91,255,0.35);
  z-index: 2;
}
.sol-center::before {
  content: ""; position: absolute;
  inset: -20px;
  border-radius: 50%;
  border: 1px dashed rgba(31,91,255,0.4);
}
.sol-node {
  position: absolute;
  width: 110px; text-align: center;
  z-index: 3;
}
.sol-node .icon {
  width: 60px; height: 60px;
  border-radius: 50%;
  margin: 0 auto 10px;
  background: #fff;
  display: flex; align-items: center; justify-content: center;
  color: var(--color-primary); font-size: 22px;
  box-shadow: var(--color-shadow);
  border: 2px solid #e5ecf8;
}
.sol-node h5 { font-size: 14px; margin-bottom: 2px; }
.sol-node p { font-size: 11px; color: var(--color-text-light); margin: 0; }
.sol-node.n1 { top: -10px; left: 50%; transform: translateX(-50%); }
.sol-node.n2 { top: 20%; right: -20px; }
.sol-node.n3 { bottom: 20%; right: -20px; }
.sol-node.n4 { bottom: -10px; left: 50%; transform: translateX(-50%); }
.sol-node.n5 { bottom: 20%; left: -20px; }
.sol-node.n6 { top: 20%; left: -20px; }

/* 能力矩阵 Tab（仅 .ai-space-tabs 容器下保留原来的胶囊按钮风格，不污染全局） */
.ai-space-tabs {
  display: flex; justify-content: center; gap: 14px;
  margin-bottom: 30px;
}
.ai-space-tabs .ai-tab {
  padding: 10px 22px;
  border-radius: 30px;
  background: rgba(255,255,255,0.15);
  color: #fff;
  cursor: pointer;
  border: 1px solid rgba(255,255,255,0.25);
  font-size: 14px;
  transition: all .2s;
}
.ai-space-tabs .ai-tab:hover, .ai-space-tabs .ai-tab.active {
  background: #fff; color: var(--color-primary);
}
.ai-space-section {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.ai-space-gallery {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}
.ai-space-thumb {
  aspect-ratio: 4/3;
  background: var(--color-bg-light);
  border-radius: var(--radius);
  overflow: hidden;
  border: 2px solid transparent;
  transition: all .3s;
  cursor: pointer;
}
.ai-space-thumb:hover { border-color: var(--color-primary); transform: translateY(-3px); }

/* =====================================================
   全局默认 .ai-tabs / .ai-tab 下划线风格
   （所有模块通用：教学区/制作区 Tabs、AI创新空间、教育方案等）
   参考图样式：黑色底线 + 黄色激活下划线 + Tab 文字下方描述
   ===================================================== */
.ai-tabs {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 48px;
  margin: 32px 0 10px;
  border-bottom: 2px solid rgba(0,0,0,0.1);
  padding-bottom: 10px;
  position: relative;
  flex-wrap: wrap;
  width: 100%;
  box-sizing: border-box;
}
.ai-tab {
  padding: 6px 4px 14px;
  cursor: pointer;
  color: #2c3e50;
  font-size: 15px;
  font-weight: 500;
  position: relative;
  transition: color .2s ease;
  background: transparent;
  border: none;
  border-radius: 0;
}
.ai-tab:hover { color: var(--color-primary); }
.ai-tab.active {
  color: var(--color-primary);
  font-weight: 600;
}
.ai-tab.active::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: -2px;
  transform: translateX(-50%);
  width: 44px;
  height: 4px;
  border-radius: 2px;
  background: linear-gradient(90deg, #f5a623, #f7b84b);
  box-shadow: 0 0 6px rgba(245,166,35,0.45);
}

/* 深色背景下的 .ai-tabs 文字/底线配色自动切换 */
.ai-space-section .ai-tabs,
.custom-ai-space-section .ai-tabs {
  border-bottom: 2px solid rgba(255,255,255,0.2);
}
.ai-space-section .ai-tab,
.custom-ai-space-section .ai-tab {
  color: rgba(255,255,255,0.85);
}
.ai-space-section .ai-tab:hover,
.custom-ai-space-section .ai-tab:hover {
  color: #fff;
}
.ai-space-section .ai-tab.active,
.custom-ai-space-section .ai-tab.active {
  color: #fff;
}

/* 选择长久合心（带3D图） */
.eco-box {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 50px; align-items: center;
}
.eco-left h3 { font-size: 24px; margin-bottom: 16px; }
.eco-left p { color: var(--color-text-light); margin-bottom: 28px; }
.eco-buttons {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.eco-btn {
  padding: 16px 10px;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--color-shadow);
  text-align: center;
  font-size: 13px;
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  transition: all .3s;
}
.eco-btn:hover { transform: translateY(-3px); box-shadow: var(--color-shadow-lg); }
.eco-btn .ec-icon {
  width: 40px; height: 40px;
  border-radius: 12px;
  background: #eaf1ff;
  color: var(--color-primary);
  display: flex; align-items: center; justify-content: center;
}

.stats-box {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 20px; margin-top: 40px;
}
.stat-item {
  text-align: center;
  padding: 22px 10px;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--color-shadow);
}
.stat-num {
  font-size: 32px; font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 6px;
}
.stat-num small { font-size: 14px; font-weight: 500; color: var(--color-text-muted); margin-left: 4px; }
.stat-label { font-size: 14px; color: var(--color-text-light); }

.eco-visual { position: relative; text-align: center; }
.eco-visual img {
  max-height: 420px; margin: 0 auto;
  filter: drop-shadow(0 20px 40px rgba(31,91,255,0.2));
}

/* Cases Gallery（服务案例） */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.case-card {
  aspect-ratio: 4/3;
  background: var(--color-bg-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  box-shadow: var(--color-shadow);
  transition: all .3s;
  cursor: pointer;
}
.case-card::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(11,66,201,0.8), transparent 60%);
  opacity: 0; transition: opacity .3s;
}
.case-card:hover::after { opacity: 1; }
.case-card:hover { transform: translateY(-5px); box-shadow: var(--color-shadow-lg); }
.case-card-img { width: 100%; height: 100%; background-size: cover; background-position: center; }
.case-caption {
  position: absolute; bottom: 18px; left: 20px; right: 20px;
  color: #fff; z-index: 2;
  transform: translateY(16px); opacity: 0; transition: all .3s;
}
.case-card:hover .case-caption { transform: translateY(0); opacity: 1; }
.case-caption h4 { color: #fff; font-size: 16px; margin-bottom: 4px; }
.case-caption p { color: rgba(255,255,255,0.85); font-size: 13px; margin: 0; }

/* ============== Map + Form（地图+留言） ============== */
.map-section {
  position: relative;
  padding: 50px 0 90px;
  overflow: hidden;
}
.map-bg {
  width: 100%;
  border-radius: var(--radius-lg);
  min-height: 480px;
  background-size: cover; background-position: center;
  position: relative;
  box-shadow: var(--color-shadow);
}
.map-pin {
  position: absolute;
  width: 260px;
  transform: translate(-50%, -50%);
  padding: 12px 18px;
  background: var(--color-gradient-primary);
  color: #fff;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  box-shadow: 0 12px 26px rgba(31,91,255,0.3);
}
.map-pin::before {
  content: ""; position: absolute;
  left: -8px; top: 50%;
  transform: translateY(-50%) rotate(45deg);
  width: 16px; height: 16px;
  background: inherit;
  border-radius: 3px;
}
.map-pin::after {
  content: "📍"; position: absolute;
  right: -26px; top: 50%; transform: translateY(-50%);
  font-size: 30px;
}

.form-card {
  position: absolute;
  top: 50%; right: 8%;
  transform: translateY(-50%);
  width: 360px;
  background: var(--color-gradient-primary);
  color: #fff;
  padding: 28px;
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 50px rgba(31,91,255,0.35);
}
.form-card h3 { color: #fff; font-size: 20px; margin-bottom: 6px; }
.form-card > p { font-size: 13px; opacity: 0.92; margin: 0 0 22px; }

.form-group { margin-bottom: 14px; }
.form-group label {
  display: block;
  font-size: 13px; margin-bottom: 6px;
  opacity: 0.95;
}
.form-group input, .form-group textarea {
  width: 100%;
  padding: 10px 14px;
  background: rgba(255,255,255,0.18);
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 8px;
  color: #fff;
  font-size: 14px;
  font-family: inherit;
  outline: none;
  transition: all .2s;
}
.form-group input::placeholder, .form-group textarea::placeholder {
  color: rgba(255,255,255,0.6);
}
.form-group input:focus, .form-group textarea:focus {
  background: rgba(255,255,255,0.28);
  border-color: rgba(255,255,255,0.6);
}
.form-group textarea { resize: vertical; min-height: 80px; }
.form-btn {
  width: 100%;
  padding: 12px;
  background: #fff;
  color: var(--color-primary);
  border: none;
  border-radius: 8px;
  font-weight: 700;
  font-size: 15px;
  cursor: pointer;
  transition: all .2s;
}
.form-btn:hover { background: #f0f5ff; transform: translateY(-1px); }

.form-msg {
  margin-top: 10px;
  padding: 10px;
  border-radius: 8px;
  font-size: 13px;
  text-align: center;
  display: none;
}
.form-msg.success { background: rgba(255,255,255,0.22); display: block; }
.form-msg.error { background: rgba(255, 80, 80, 0.3); display: block; }

/* ============== Footer ============== */
.site-footer {
  background: #222a3c;
  color: #a2acc2;
  padding: 50px 0 0;
}
.footer-top {
  display: grid;
  grid-template-columns: 300px repeat(2, 1fr);
  gap: 50px;
  padding-bottom: 40px;
}
.footer-logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 22px; font-weight: 800;
  color: #fff; margin-bottom: 16px;
}
.footer-desc { font-size: 13px; line-height: 1.8; color: #8792ab; }

.footer-col h4 {
  color: #fff; font-size: 16px;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid #333c52;
}
.footer-links {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 10px 22px;
}
.footer-links a {
  font-size: 13px;
  color: #8792ab;
  transition: color .2s;
}
.footer-links a:hover { color: var(--color-primary-light); }

.footer-social {
  display: flex; gap: 16px;
  padding: 18px 0;
  border-top: 1px solid #333c52;
  justify-content: center;
  flex-wrap: wrap;
}
.footer-social .social-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  text-decoration: none;
  transition: all .2s;
}
.footer-social .social-icon {
  width: 42px; height: 42px;
  border-radius: 50%;
  background: #3a4358;
  display: flex; align-items: center; justify-content: center;
  transition: all .2s;
}
.footer-social .social-icon svg {
  width: 22px;
  height: 22px;
  fill: #c0cad8;
  transition: all .2s;
}
.footer-social .social-item:hover .social-icon {
  background: var(--color-primary);
  transform: translateY(-2px);
}
.footer-social .social-item:hover .social-icon svg {
  fill: #fff;
}
.footer-social .social-item::after {
  content: attr(title);
  font-size: 11px;
  color: #6b7590;
  margin-top: 2px;
  text-align: center;
}

.footer-bottom {
  padding: 14px 0;
  text-align: center;
  border-top: 1px solid #333c52;
  font-size: 12px;
  color: #5a647a;
}

/* ============== Back to top ============== */
.back-to-top {
  position: fixed;
  right: 24px; bottom: 24px;
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--color-gradient-primary);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 10px 26px rgba(31,91,255,0.35);
  cursor: pointer;
  opacity: 0; pointer-events: none;
  transform: translateY(10px);
  transition: all .3s;
  z-index: 99;
}
.back-to-top.show { opacity: 1; pointer-events: auto; transform: translateY(0); }
.back-to-top:hover { transform: translateY(-4px); }

/* ============== Responsive ============== */
@media (max-width: 1100px) {
  h1 { font-size: 36px; }
  h2 { font-size: 26px; }
  .service-grid, .cases-grid, .products-grid { grid-template-columns: repeat(2, 1fr); }
  .service-grid-5 { grid-template-columns: repeat(3, 1fr); }
  .service-grid-4 { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: repeat(2, 1fr); }
  .flow-steps { grid-template-columns: repeat(3, 1fr); gap: 26px; }
  .flow-steps::before { display: none; }
  .products-layout { grid-template-columns: 1fr; }
  .products-sidebar { position: static; }
  .ability-icons { grid-template-columns: repeat(3, 1fr); }
  .course-level-grid, .course-curriculum { grid-template-columns: repeat(3, 1fr); }
  .intro-box, .eco-box { grid-template-columns: 1fr; }
  .ai-space-gallery { grid-template-columns: repeat(3, 1fr); }
  .solutions-diagram { width: 100%; height: 520px; }
  .sol-node.n2, .sol-node.n3 { right: 0; }
  .sol-node.n5, .sol-node.n6 { left: 0; }
  .form-card { position: static; transform: none; width: 100%; margin-top: 20px; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .main-nav { display: none; }
}

@media (max-width: 640px) {
  .section { padding: 50px 0; }
  h1 { font-size: 28px; }
  h2 { font-size: 22px; }
  .banner-title { font-size: 32px; }
  .banner-title small { font-size: 20px; }
  .page-banner { min-height: 460px; }
  .header-tel { display: none; }
  .contact-grid, .service-grid, .cases-grid, .products-grid, .service-grid-4, .service-grid-5 { grid-template-columns: 1fr; }
  .ability-icons { grid-template-columns: repeat(2, 1fr); }
  .course-level-grid, .course-curriculum { grid-template-columns: repeat(2, 1fr); }
  .flow-steps { grid-template-columns: repeat(2, 1fr); }
  .stats-box { grid-template-columns: repeat(2, 1fr); }
  .eco-buttons { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  .ai-space-tabs { flex-wrap: wrap; gap: 8px; }
  .ai-space-gallery { grid-template-columns: repeat(2, 1fr); }
  .timeline-line { display: none; }
  .timeline-items { flex-direction: column; align-items: center; gap: 20px; }
  .timeline-dot { margin: 10px auto 10px !important; }
  .solutions-diagram { height: 680px; }
  .sol-node { width: 96px; }
  .sol-node .icon { width: 48px; height: 48px; font-size: 16px; }
  .map-pin { width: 180px; font-size: 12px; }
}

/* ============== Feature Cards (时代印记) ============== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}
.feature-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 24px 20px;
  box-shadow: var(--color-shadow);
  transition: all .3s;
  text-align: left;
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--color-shadow-lg);
}
.feature-year {
  font-size: 28px;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 12px;
  display: block;
}
.feature-content h4 {
  font-size: 17px;
  margin-bottom: 6px;
  color: var(--color-text);
}
.feature-content p {
  font-size: 13px;
  color: var(--color-text-light);
  margin: 0;
  line-height: 1.6;
}

@media (max-width: 1100px) {
  .features-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 640px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ============== 时代印记 - 横向时间轴 ============== */
.timeline-section { padding: 80px 0; position: relative; }
.timeline-wrapper {
  position: relative;
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
}
/* 虚影年份大字（仅高于背景，低于内容） */
.timeline-ghost-year {
  position: absolute;
  top: 35%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 520px;
  font-weight: 900;
  line-height: 1;
  z-index: 1;
  pointer-events: none;
  user-select: none;
  opacity: 0.12 !important;
  letter-spacing: -0.02em;
  white-space: nowrap;
  text-align: center;
  color: #000 !important;
}
.timeline-wrapper {
  position: relative;
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
  overflow: visible;
}
.timeline-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 4px 12px rgba(0,0,0,.1);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
  transition: all .3s;
  border: none;
  font-size: 18px;
  color: var(--color-primary);
}
.timeline-nav:hover {
  background: var(--color-primary);
  color: #fff;
  transform: translateY(-50%) scale(1.1);
}
.timeline-nav.prev { left: -48px; }
.timeline-nav.next { right: -48px; }
@media (max-width: 768px) {
  .timeline-nav.prev { left: 5px; }
  .timeline-nav.next { right: 5px; }
}
.timeline-content {
  position: relative;
  min-height: 210px;
  margin-bottom: 30px;
  width: 100%;
  z-index: 2;
}
.timeline-item {
  display: none;
  background: #fff;
  border-radius: 12px;
  padding: 0;
  box-shadow: 0 8px 30px rgba(0,0,0,.08);
  grid-template-columns: 1fr 2fr;
  gap: 0;
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 675px;
  overflow: hidden;
}
.timeline-item.active {
  display: grid;
}
.timeline-info {
  display: flex;
  flex-direction: column;
  justify-content: center;
  text-align: left;
  padding: 18px 24px;
  background: #fff;
  border-radius: 0;
  box-shadow: none;
  height: 210px;
}
.timeline-info h4 {
  font-size: 17px;
  margin-bottom: 6px;
  color: var(--color-primary);
  text-align: left;
}
.timeline-info h5 {
  font-size: 14px;
  margin-bottom: 10px;
  color: var(--color-text);
  font-weight: 600;
  text-align: left;
}
.timeline-info p {
  font-size: 12px;
  color: var(--color-text-light);
  line-height: 1.7;
  text-align: left;
}
.timeline-img-wrap {
  display: flex;
  align-items: stretch;
  justify-content: center;
  height: 210px;
  overflow: hidden;
  border-radius: 0;
}
.timeline-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 0;
  display: block;
}
.timeline-img-placeholder {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  height: 210px;
  width: 100%;
  border-radius: 0;
}
.timeline-track {
  position: absolute;
  top: 51px;
  left: 0;
  right: 0;
  height: 2px;
  background: #e2e8f0;
  z-index: 1;
}
.timeline-points {
  display: flex;
  justify-content: space-between;
  position: relative;
  z-index: 2;
}
.timeline-point {
  cursor: pointer;
  text-align: center;
  position: relative;
  margin-top: 40px;
  z-index: 3;
}
.point-dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #e2e8f0;
  margin: 0 auto 12px;
  border: 3px solid #fff;
  box-shadow: 0 0 0 2px #e2e8f0;
  transition: all .3s;
}
.timeline-point.active .point-dot {
  background: var(--color-primary);
  box-shadow: 0 0 0 2px var(--color-primary), 0 0 0 6px rgba(31,91,255,.2);
  transform: scale(1.1);
}
.point-year {
  font-size: 14px;
  color: var(--color-text-light);
  transition: color .3s;
}
.timeline-point.active .point-year {
  color: var(--color-primary);
  font-weight: 600;
}

/* ============== 教育方案 - 环形布局 ============== */
.edu-solution-section { padding: 80px 0; background: #f8fafc; --edu-section-bg: #f8fafc; }
.edu-circle {
  position: relative;
  margin: 0 auto;
}
.edu-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 140px;
  height: 140px;
  background: linear-gradient(135deg, #1e5bff, #5b8dff);
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: 0 20px 40px rgba(31,91,255,.3);
  z-index: 10;
}
.edu-center-icon {
  width: 42px;
  height: 42px;
  margin-bottom: 6px;
}
.edu-center-icon svg {
  width: 100%;
  height: 100%;
}
.edu-center span {
  font-size: 14px;
  font-weight: 600;
}
.edu-ring {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

/* 项目卡片基础样式 */
.edu-item {
  position: absolute;
  width: 260px;
}
.edu-item-content {
  display: flex;
  align-items: center;
  gap: 12px;
  background: transparent;
  padding: 0;
  transition: transform .3s;
}
.edu-item:hover .edu-item-content {
  transform: scale(1.05);
}
.edu-item-text {
  flex: 1;
  min-width: 0;
}
/* 左侧项目（01、02、03） - 文字右对齐，图标在最右侧 */
.edu-item-left .edu-item-text {
  text-align: right;
  order: 1;
}
.edu-item-left .edu-item-icon-wrap {
  order: 2;
}
/* 右侧项目（04、05、06） - 文字左对齐，图标在最左侧 */
.edu-item-right .edu-item-text {
  text-align: left;
  order: 2;
}
.edu-item-right .edu-item-icon-wrap {
  order: 1;
}
.edu-item-num {
  display: block;
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 4px;
}
.edu-item-title {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 4px;
}
.edu-item-desc {
  display: block;
  font-size: 12px;
  color: var(--color-text-light);
  line-height: 1.5;
  word-break: keep-all;
  word-wrap: normal;
}

/* 图标圆形容器 - 白色背景 */
.edu-item-icon-wrap {
  flex-shrink: 0;
}
.edu-item-icon-circle {
  width: 44px;
  height: 44px;
  background: #fff;
  border: 2px solid #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(31,91,255,.2);
}
.edu-item-icon-circle svg {
  width: 22px;
  height: 22px;
  fill: var(--color-primary);
}
.edu-item-img-circle {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid #fff;
  box-shadow: 0 4px 12px rgba(31,91,255,.2);
}
.edu-item-img-circle img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
/* 项目图标装饰圆环 — 宽高/颜色由内联 style 控制，这里只负责外观 */
.edu-item-ring {
  border-radius: 50%;
  border: 4px solid;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #fff;
  transition: all .3s;
  box-sizing: border-box;
  flex-shrink: 0;
}
.edu-item-ring .edu-item-icon-circle {
  box-shadow: none;
  border: none;
}
.edu-item-ring .edu-item-img-circle {
  box-shadow: none;
  border: none;
}

/* ============== 教育方案 - 两排三列网格布局（新） ============== */
.edu-grid-wrap {
  max-width: 1100px;
  margin: 40px auto 0;
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.edu-grid-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.edu-grid-item {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 160px;
}
.edu-grid-item-empty {
  visibility: hidden;
}
/* 上排：文字左，图标右 */
.edu-grid-item-left .edu-item-content {
  flex-direction: row;
}
.edu-grid-item-left .edu-item-text {
  text-align: right;
  order: 1;
}
.edu-grid-item-left .edu-item-icon-wrap {
  order: 2;
}
/* 下排：图标左，文字右 */
.edu-grid-item-right .edu-item-content {
  flex-direction: row;
}
.edu-grid-item-right .edu-item-text {
  text-align: left;
  order: 2;
}
.edu-grid-item-right .edu-item-icon-wrap {
  order: 1;
}
/* 圆环装饰圈 - 套在图标外面 */
.edu-item-ring {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  border: 4px solid rgba(31,91,255,1);
  display: flex;
  align-items: center;
  justify-content: center;
  background: #fff;
  transition: all .3s;
  box-sizing: border-box;
}
.edu-item-ring .edu-item-icon-circle {
  box-shadow: none;
  width: 56px;
  height: 56px;
  border: none;
}
.edu-item-ring .edu-item-icon-circle svg {
  width: 30px;
  height: 30px;
}
.edu-item-ring .edu-item-img-circle {
  width: 56px;
  height: 56px;
  box-shadow: none;
  border: none;
}
.edu-item-content {
  display: flex;
  align-items: center;
  gap: 14px;
  background: transparent;
  padding: 0;
  transition: transform .3s;
}
.edu-grid-item:hover .edu-item-content {
  transform: scale(1.05);
}
.edu-item-text {
  flex: 1;
  min-width: 0;
  max-width: 200px;
}
.edu-item-num {
  display: block;
  font-size: 22px;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 4px;
}
.edu-item-title {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 4px;
}
.edu-item-desc {
  display: block;
  font-size: 11px;
  color: var(--color-text-light);
  line-height: 1.4;
}
.edu-item-icon-wrap {
  flex-shrink: 0;
}
.edu-item-icon-circle {
  width: 44px;
  height: 44px;
  background: #fff;
  border: 2px solid #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(31,91,255,.2);
}
.edu-item-icon-circle svg {
  width: 22px;
  height: 22px;
  fill: currentColor;
}
.edu-item-img-circle {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid #fff;
  box-shadow: 0 4px 12px rgba(31,91,255,.2);
}
.edu-item-img-circle img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* 响应式：移动端改一列 */
@media (max-width: 768px) {
  .edu-grid-row {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .edu-grid-item-left .edu-item-text,
  .edu-grid-item-right .edu-item-text {
    text-align: left;
    order: 2;
  }
  .edu-grid-item-left .edu-item-icon-wrap,
  .edu-grid-item-right .edu-item-icon-wrap {
    order: 1;
  }
  .edu-item-content {
    justify-content: flex-start;
    max-width: 400px;
    margin: 0 auto;
    width: 100%;
  }
}

/* ============== AI创新空间 ============== */
.ai-space-section { 
  padding: 80px 0; 
  background-color: #1e3a8a;
  background-image: linear-gradient(180deg, #1e3a8a 0%, #3b82f6 100%); 
  color: #fff; 
  position: relative;
  overflow: hidden;
}
/* 蒙版样式 - 覆盖在所有内容前面 */
.ai-space-mask {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  pointer-events: none;
  z-index: 10;
}
.ai-space-section .container {
  position: relative;
  z-index: 5;
}
.ai-space-section .section-title h2,
.ai-space-section .section-title p { color: #fff; }
.ai-space-section .section-title h2 span { color: #93c5fd; }
.ai-tab-desc {
  text-align: center;
  padding: 20px;
  font-size: 15px;
  color: rgba(255,255,255,.85);
  display: none;
}
.ai-tab-desc.active { display: block; }
.ai-tab-desc-text {
  font-size: 14px;
  color: rgba(255,255,255,0.9);
  line-height: 1.7;
  margin: 0 auto 24px;
  max-width: 720px;
  text-align: center;
}
@media (max-width: 768px) {
  .ai-tabs { gap: 18px 22px; }
}

/* 图片画廊 - 滑动效果 */
.ai-gallery {
  position: relative;
  max-width: 100%;
  margin: 0 auto 20px;
  padding: 0 40px;
}
.ai-gallery-viewport {
  overflow: hidden;
}
.ai-gallery-slider {
  display: flex;
  transition: transform 0.4s ease;
  will-change: transform;
}
.ai-gallery-item {
  flex: 0 0 calc(100% / 5);
  aspect-ratio: 1/2;  /* 2:4比例，高度加倍 */
  background: rgba(255,255,255,.1);
  overflow: hidden;
  border-right: 1px dashed rgba(255,255,255,.15);
  border-bottom: 1px dashed rgba(255,255,255,.15);
  box-sizing: border-box;
}
.ai-gallery-item:last-child {
  border-right: none;
}
.ai-gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.ai-gallery-item.ai-gallery-empty {
  background: rgba(255,255,255,.05);
  border-style: dashed;
}
.ai-gallery-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(255,255,255,.2);
  color: #fff;
  border: none;
  font-size: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background .3s;
}
.ai-gallery-nav:hover { background: rgba(255,255,255,.4); }
.ai-gallery-prev { left: 0; }
.ai-gallery-next { right: 0; }
.ai-gallery-dots {
  display: flex;
  justify-content: center;
  gap: 6px;
  margin-top: 12px;
}
.ai-gallery-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,.3);
  cursor: pointer;
  transition: background .3s;
}
.ai-gallery-dot.active { background: #fff; }
.ai-images {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  margin-top: 30px;
}
.ai-img-item {
  aspect-ratio: 1;
  background: rgba(255,255,255,.1);
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,.15);
}

/* ============== 方案服务模块 ============== */
/* 背景与版心解耦：scheme-section 不提供背景/内边距，只做壳；scheme-top / scheme-bottom 各自铺满全宽承载背景，内部 .container 限宽版心 */
.scheme-section { 
  padding: 0;
  background: transparent;
}
.scheme-top {
  /* 全宽（100%），内部 flex 布局在容器内部的 .container 里执行 */
  width: 100%;
  padding: 80px 0 60px; /* 上 80 / 下 60，想让背景延伸到 section 顶部/底部的关键 */
  margin-bottom: 0;
}
.scheme-top > .container {
  display: flex;
  gap: 60px;
  align-items: flex-start;
}
.scheme-img {
  flex: 0 0 200px;
  width: 200px;
}
.scheme-img img,
.scheme-img-placeholder {
  width: 100%;
  height: auto;
  display: block;
}
.scheme-content {
  flex: 1;
}
.scheme-title {
  font-size: 32px;
  font-weight: 700;
  color: #1a1a2e;
  margin-bottom: 12px;
  line-height: 1.3;
  /* 保留空格 + 回车换行；文本左对齐让空格缩进生效 */
  white-space: pre-wrap;
  text-align: left;
}
.scheme-sub {
  font-size: 16px;
  color: #666;
  line-height: 1.6;
  margin-bottom: 30px;
  white-space: pre-wrap;
  text-align: left;
}
/* —— 上半：3 项特性卡（横向 3 列、图标在上、极简无卡边框） —— */
.scheme-features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px 32px;
  margin-top: 10px;
}
.scheme-feature-card {
  display: block; /* 内部由 texts 纵向排版，不再有外部 row 布局占位 */
  text-align: left;
  /* 默认无卡感：无背景、无边框、无阴影（需要用户在配置里填 bg_color/radius 才显示） */
  padding: 0;
  background: transparent;
  border: none;
  box-shadow: none;
  transition: transform .25s ease;
}
.scheme-feature-card:hover {
  transform: translateY(-2px);
}
.scheme-feature-card-title-row {
  display: flex;
  flex-direction: row;
  align-items: center;   /* 图标和标题同一垂直中线 */
  justify-content: flex-start;
  /* 图标与标题之间的默认间距，用户填 features_icon_title_gap 时 inline 覆盖 */
  gap: 16px;
  margin-bottom: 0;
}
.scheme-feature-card-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: linear-gradient(135deg, #3b82f6 0%, #6366f1 100%);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  font-weight: bold;
  line-height: 1;
  overflow: hidden;
  flex-shrink: 0; /* 图标不被压缩 */
}
.scheme-feature-card-texts {
  display: flex;
  flex-direction: column;
  /* 标题行与描述之间的间距，默认 10px */
  gap: 10px;
  width: 100%;
  min-width: 0;
}
.scheme-feature-card-title {
  font-size: 18px;
  font-weight: 600;
  color: #1a1a2e;
  margin: 0;
  line-height: 1.4;
  white-space: pre-wrap;
  text-align: left;
}
.scheme-feature-card-desc {
  font-size: 14px;
  color: #666;
  line-height: 1.6;
  margin: 0;
  white-space: pre-wrap;
  text-align: left;
}
.scheme-features {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.scheme-feature {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  /* 默认卡片样式：让 inline 的 border-radius 倒角真正看得到 */
  padding: 20px 22px;
  background: #ffffff;
  box-shadow: 0 2px 10px rgba(102, 126, 234, .06);
  border: 1px solid #eef1f8;
  transition: transform .28s ease, box-shadow .28s ease;
}
.scheme-feature:hover {
  transform: scale(1.025);
  box-shadow: 0 10px 30px rgba(102, 126, 234, .14);
}
.scheme-feature-icon {
  flex: 0 0 28px;
  width: 28px;
  height: 28px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 50%;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: bold;
  margin-top: 4px;
}
.scheme-feature-text h4 {
  font-size: 16px;
  font-weight: 600;
  color: #1a1a2e;
  margin-bottom: 4px;
}
.scheme-feature-text p {
  font-size: 14px;
  color: #666;
  line-height: 1.5;
}
.scheme-bottom {
  width: 100%;
  padding: 60px 0 80px; /* 上 60 / 下 80，背景铺满自己这一块 */
  border-top: none; /* 上下两块不画分隔线，完全靠背景区分 */
  text-align: left; /* slogan 单独指定居中，优势列表交给 grid */
}
.scheme-slogan {
  font-size: 30px;
  font-weight: 700;
  color: #1a1a2e;
  margin-bottom: 12px;
  text-align: center;
  white-space: pre-wrap;
  line-height: 1.3;
}
.scheme-slogan-sub {
  font-size: 15px;
  color: #888;
  margin-bottom: 50px;
  text-align: center;
  white-space: pre-wrap;
  line-height: 1.6;
}

/* —— 下半：优势 4 列 + 每项左竖线 + 编号左下（纯文字无卡） —— */
.scheme-advantages-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.scheme-adv-item {
  position: relative;
  padding: 6px 0 40px 20px;  /* 底部留高放 01/02 编号；左侧留 padding 让竖线有位置 */
  /* 默认无卡：无背景、无圆角、无阴影（用户填了 width/height/radius/bg_color 才生效 inline） */
  background: transparent;
  border: none;
  border-radius: 0;
}
.scheme-adv-line {
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 26px;  /* 底部留出编号行 */
  width: 2px;
  background: #cfd8e8;  /* 浅灰竖线，不扎眼 */
  border-radius: 2px;
}
.scheme-adv-body {
  padding: 0 0 0 6px;
  text-align: left;
  min-height: 100%;
}
.scheme-adv-body h4 {
  font-size: 18px;
  font-weight: 600;
  color: #1a1a2e;
  margin: 0 0 10px 0;
  line-height: 1.4;
  white-space: pre-wrap;
  text-align: left;
}
.scheme-adv-body p {
  font-size: 13px;
  color: #7a7f91;
  line-height: 1.7;
  margin: 0;
  white-space: pre-wrap;
  text-align: left;
}
.scheme-adv-num {
  position: absolute;
  left: 18px;
  bottom: 0;
  font-size: 44px;
  font-weight: 800;
  line-height: 1;
  background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}
.scheme-advantages {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
}
.scheme-advantage {
  text-align: center;
  padding: 30px 20px;
  background: #f8f9fc;
  border-radius: 16px;
  transition: all .3s;
}
.scheme-advantage:hover {
  transform: translateY(-5px) scale(1.03);
  box-shadow: 0 10px 30px rgba(102, 126, 234, .15);
}
.scheme-advantage-num {
  display: inline-block;
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 50%;
  color: #fff;
  font-weight: 700;
  font-size: 16px;
  line-height: 40px;
  margin-bottom: 16px;
}
.scheme-advantage h4 {
  font-size: 18px;
  font-weight: 600;
  color: #1a1a2e;
  margin-bottom: 8px;
}
.scheme-advantage p {
  font-size: 14px;
  color: #666;
  line-height: 1.5;
}

/* 响应式 */
@media (max-width: 768px) {
  .scheme-top {
    padding: 50px 0 40px;
  }
  .scheme-top > .container {
    flex-direction: column;
    gap: 30px;
  }
  .scheme-bottom {
    padding: 40px 0 50px;
  }
  .scheme-img {
    flex: 0 0 auto;
    width: 150px;
    margin: 0 auto;
  }
  .scheme-title {
    font-size: 24px;
  }
  .scheme-features-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .scheme-advantages-list {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px 16px;
  }
  .scheme-advantages {
    grid-template-columns: repeat(2, 1fr);
  }
  .scheme-slogan {
    font-size: 22px;
  }
  .scheme-adv-num {
    font-size: 32px;
  }
}

/* ============== 服务案例（纯图片+左下文字覆盖+滑动窗口） ============== */
.service-section { padding: 80px 0; }
.service-grid-wrap {
  position: relative;
  padding: 0 60px;
}
.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: 280px;
  gap: 20px;
  transition: opacity .3s ease;
}
.service-case-item {
  position: relative;
  overflow: hidden;
  border-radius: 12px;
  background: #e8ecf4;
  transition: transform .3s ease, opacity .3s ease;
  cursor: pointer;
}
.service-case-item:hover {
  transform: translateY(-4px);
}
.service-case-item:hover .service-case-overlay {
  background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.3) 60%, transparent 100%);
}
.service-case-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.service-case-placeholder {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}
.service-case-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 16px 18px;
  background: linear-gradient(to top, rgba(0,0,0,0.75) 0%, rgba(0,0,0,0.2) 70%, transparent 100%);
  color: #fff;
  transition: background .3s ease;
}
.service-case-title {
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  display: block;
  line-height: 1.4;
}

/* 左右翻页按钮 */
.service-nav-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: none;
  background: #fff;
  color: #4a5878;
  font-size: 24px;
  font-weight: bold;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(0,0,0,0.12);
  transition: all .25s ease;
  z-index: 10;
  line-height: 1;
}
.service-nav-btn:hover {
  background: #1f5bff;
  color: #fff;
  transform: translateY(-50%) scale(1.08);
  box-shadow: 0 6px 20px rgba(31,91,255,0.35);
}
.service-nav-prev {
  left: 0;
}
.service-nav-next {
  right: 0;
}

/* 分页圆点 */
.service-pagination-dots {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 30px;
}
.service-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #d0d8eb;
  cursor: pointer;
  transition: all .25s ease;
}
.service-dot:hover {
  background: #99a7c4;
}
.service-dot.active {
  background: #1f5bff;
  width: 24px;
  border-radius: 5px;
}

@media (max-width: 900px) {
  .edu-circle { width: 100% !important; max-width: 780px; height: auto !important; min-height: 560px; }
  .edu-center { width: 110px; height: 110px; }
  .edu-center span { font-size: 12px; }
  .edu-ring { width: 480px !important; height: 480px !important; max-width: 100%; }
  .edu-bg-ring-outer { width: 380px !important; height: 380px !important; }
  .edu-bg-ring-inner { width: 280px !important; height: 280px !important; }
  .edu-item-content { padding: 0; gap: 10px; }
  .edu-item-num { font-size: 18px; }
  .edu-item-title { font-size: 13px; }
  .edu-item-desc { font-size: 10px; }
  .edu-item-icon-circle, .edu-item-img-circle { width: 36px; height: 36px; }
  .edu-item-icon-circle svg { width: 18px; height: 18px; }
  /* 项目圆环尺寸由内联 style 决定，不再用固定宽高覆盖 */
  .edu-item-ring .edu-item-icon-circle,
  .edu-item-ring .edu-item-img-circle { width: 44px; height: 44px; }
  .edu-item-ring .edu-item-icon-circle svg { width: 22px; height: 22px; }
  .edu-item-left-mid { left: -30px; }
  .edu-item-right-mid { right: -30px; }
  .service-grid { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 240px; gap: 16px; }
  .service-grid-wrap { padding: 0 40px; }
  .service-nav-btn { width: 36px; height: 36px; font-size: 20px; }
  .ai-images { grid-template-columns: repeat(3, 1fr); }
  .timeline-item { grid-template-columns: 1fr; }
  .timeline-img-wrap { min-height: auto; margin-bottom: 20px; }
  .timeline-img { max-width: 100%; }
  .ai-tabs { gap: 16px; flex-wrap: wrap; }
  .timeline-content { min-height: 400px; }
}
@media (max-width: 640px) {
  .edu-circle { width: 100%; height: auto !important; min-height: 360px; }
  .edu-center { position: static; transform: none; width: 90px; height: 90px; margin: 0 auto 20px; }
  .edu-center-icon { width: 28px; height: 28px; }
  .edu-center span { font-size: 11px; }
  .edu-ring { position: static; transform: none; width: 100% !important; height: auto !important; padding: 10px; box-sizing: border-box; }
  .edu-bg-ring-outer, .edu-bg-ring-inner { display: none; }
  .edu-item {
    position: static !important;
    width: 100% !important;
    max-width: 360px;
    margin: 0 auto 18px;
    transform: none !important;
  }
  .edu-item-left, .edu-item-right { flex-direction: row !important; }
  .edu-item-left .edu-item-text,
  .edu-item-right .edu-item-text {
    order: 2 !important;
    text-align: left !important;
  }
  .edu-item-left .edu-item-icon-wrap,
  .edu-item-right .edu-item-icon-wrap {
    order: 1 !important;
  }
  .edu-item-content { padding: 0; gap: 12px; justify-content: flex-start; }
  .edu-item-num { font-size: 16px; }
  .edu-item-title { font-size: 12px; }
  .edu-item-desc { font-size: 10px; line-height: 1.3; }
  .edu-item-icon-circle, .edu-item-img-circle { width: 30px; height: 30px; }
  .edu-item-icon-circle svg { width: 14px; height: 14px; }
  /* 项目圆环尺寸由内联 style 决定，保留 icon-circle 内部缩放 */
  .edu-item-ring .edu-item-icon-circle,
  .edu-item-ring .edu-item-img-circle { width: 36px; height: 36px; }
  .edu-item-ring .edu-item-icon-circle svg { width: 18px; height: 18px; }
}
@media (max-width: 480px) {
  .service-grid { grid-template-columns: 1fr; grid-auto-rows: 220px; }
  .service-grid-wrap { padding: 0 30px; }
  .service-nav-btn { width: 32px; height: 32px; font-size: 18px; }
  .service-nav-prev { left: -10px; }
  .service-nav-next { right: -10px; }
  .service-case-overlay { padding: 12px 14px; }
  .service-case-title { font-size: 14px; }
  .service-dot { width: 8px; height: 8px; }
  .service-dot.active { width: 18px; }
  .ai-images { grid-template-columns: repeat(2, 1fr); }
  .timeline-content { min-height: 500px; }
  .timeline-img-wrap { min-height: auto; }
  .timeline-img { max-height: 200px; }
}

/* ============== 自定义页面（page-custom.php）模块样式 ============== */

.custom-page-wrapper { width: 100%; }

/* 卡片网格 */
.custom-cards-section { padding: 70px 0; }
.custom-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.custom-card-item {
  display: flex;
  flex-direction: column;
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--color-shadow);
  transition: transform .3s ease, box-shadow .3s ease;
  color: var(--color-text);
}
.custom-card-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--color-shadow-lg);
  color: var(--color-text);
}
.custom-card-img {
  width: 100%;
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--color-bg-alt);
}
.custom-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .4s ease;
}
.custom-card-item:hover .custom-card-img img { transform: scale(1.06); }
.custom-card-body { padding: 20px 22px 24px; }
.custom-card-body h3 {
  font-size: 18px;
  margin-bottom: 10px;
  color: var(--color-text);
}
.custom-card-body p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin: 0;
}

/* 时间轴（自定义页面）- 沿用 .timeline-* 样式，无须重复定义 */
.custom-timeline-section .timeline-wrapper { margin-top: 30px; }

/* 统计数字 - 沿用 .stats-box, .stat-item, .stat-num, .stat-label */
.custom-stats-section { padding: 60px 0; }
.custom-stats-box { margin-top: 0; }

/* 图文并排 */
.custom-image-text-section { padding: 70px 0; }
.custom-image-text-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}
.custom-image-text-wrap.layout-right .custom-image-text-media {
  order: 2;
}
.custom-image-text-media img {
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--color-shadow);
  display: block;
  object-fit: cover;
}
.custom-image-text-placeholder {
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, #eaf1ff, #c8daff);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-weight: 700;
}
.custom-image-text-body h2 {
  font-size: 28px;
  margin-bottom: 16px;
  color: var(--color-text);
}
.custom-image-text-desc {
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-text-light);
  margin-bottom: 24px;
}
.custom-image-text-btn .btn { display: inline-flex; }

/* 行动号召 */
.custom-cta-section { padding: 80px 0; }
.custom-cta-inner {
  text-align: center;
  max-width: 760px;
  margin: 0 auto;
}
.custom-cta-inner h2 {
  font-size: 34px;
  margin-bottom: 14px;
  color: var(--color-text);
}
.custom-cta-inner p {
  font-size: 16px;
  color: var(--color-text-light);
  margin-bottom: 30px;
}
.custom-cta-inner .btn { display: inline-flex; }

/* 富文本 */
.custom-text-section { padding: 70px 0; }
.custom-text-title {
  text-align: center;
  font-size: 28px;
  margin-bottom: 28px;
  color: var(--color-text);
}
.custom-text-content {
  font-size: 15px;
  line-height: 1.9;
  color: var(--color-text);
}
.custom-text-content p { margin: 0 0 16px; }
.custom-text-content h1,
.custom-text-content h2,
.custom-text-content h3,
.custom-text-content h4 { margin: 24px 0 12px; }

/* 响应式 */
@media (max-width: 992px) {
  .custom-cards-grid { grid-template-columns: repeat(2, 1fr); }
  .custom-image-text-wrap {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .custom-image-text-wrap.layout-right .custom-image-text-media { order: 0; }
}
@media (max-width: 640px) {
  .custom-cards-grid { grid-template-columns: 1fr; }
  .custom-cta-inner h2 { font-size: 26px; }
  .custom-image-text-body h2 { font-size: 24px; }
}

/* ============== 新模块样式 ============== */

/* 图标特性列表 */
.icon-features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}
.icon-feature-item {
  text-align: center;
  padding: 30px 20px;
  border-radius: 12px;
  background: #f8fafc;
  transition: all 0.3s ease;
}
.icon-feature-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(31, 91, 255, 0.12);
}
.icon-feature-icon {
  font-size: 42px;
  margin-bottom: 16px;
}
.icon-feature-item h3 {
  font-size: 18px;
  margin-bottom: 8px;
  color: #1a1a2e;
}
.icon-feature-item p {
  color: #666;
  line-height: 1.6;
  font-size: 14px;
}

/* FAQ 手风琴 */
.faq-list {
  margin-top: 20px;
}
.faq-item {
  border-bottom: 1px solid #e5e7eb;
}
.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: #1a1a2e;
  text-align: left;
  transition: color 0.2s;
}
.faq-question:hover {
  color: #1f5bff;
}
.faq-icon {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #1f5bff;
  color: #fff;
  border-radius: 50%;
  font-size: 16px;
  transition: transform 0.3s ease;
  flex-shrink: 0;
}
.faq-item.active .faq-icon {
  transform: rotate(45deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}
.faq-item.active .faq-answer {
  max-height: 500px;
}
.faq-answer-inner {
  padding: 0 0 20px;
  color: #666;
  line-height: 1.8;
}

/* 合作伙伴 Logo 墙 */
.partners-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  margin-top: 30px;
}
.partner-item {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100px;
  padding: 20px;
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 10px;
  transition: all 0.3s ease;
  text-decoration: none;
}
.partner-item:hover {
  border-color: #1f5bff;
  box-shadow: 0 8px 24px rgba(31, 91, 255, 0.1);
}
.partner-item img {
  max-width: 100%;
  max-height: 50px;
  object-fit: contain;
}
.partner-name {
  font-size: 14px;
  color: #666;
  font-weight: 500;
}

/* 视频嵌入 */
.custom-video-section {
  text-align: center;
}
.custom-video-title {
  font-size: 28px;
  margin-bottom: 30px;
  color: #fff;
}
.custom-video-wrapper {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  border-radius: 12px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}
.custom-video-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

/* 团队成员 */
.team-grid {
  display: flex;
  flex-wrap: nowrap;
  gap: 30px;
  margin-top: 40px;
  overflow-x: auto;
  overflow-y: visible;
  padding: 10px 10px 25px;
  -webkit-overflow-scrolling: touch;
  scroll-behavior: smooth;
}
.team-grid::-webkit-scrollbar { height: 8px; }
.team-grid::-webkit-scrollbar-track { background: #f0f4ff; border-radius: 4px; }
.team-grid::-webkit-scrollbar-thumb { background: linear-gradient(135deg,#5b8dff,#3d6eff); border-radius: 4px; }
.team-member {
  flex: 0 0 calc(25% - 22.5px);
  min-width: 200px;
  max-width: 280px;
  text-align: center;
  background: #fff;
  border-radius: 18px;
  padding: 28px 20px;
  box-shadow: 0 4px 20px rgba(30, 58, 138, 0.06);
  border: 1px solid #e8edf6;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.team-member:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(91, 141, 255, 0.15);
}
.team-member-photo {
  width: 180px;
  height: 180px;
  margin: 0 auto 20px;
  border-radius: 50%;
  overflow: hidden;
  background: #f0f5ff;
}
.team-member-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.team-photo-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 60px;
  color: #1f5bff;
  font-weight: bold;
  background: linear-gradient(135deg, #e8f0ff 0%, #d0d9ec 100%);
}
.team-member-info h3 {
  font-size: 20px;
  margin-bottom: 8px;
  color: #1a1a2e;
}
.team-role {
  color: #1f5bff;
  font-weight: 500;
  margin-bottom: 12px;
}
.team-social {
  color: #666;
  font-size: 14px;
  text-decoration: none;
}
.team-social:hover {
  color: #1f5bff;
}

/* 图片画廊 */
.custom-gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 30px;
}
.gallery-item {
  aspect-ratio: 1;
  overflow: hidden;
  border-radius: 8px;
}
.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.gallery-item:hover img {
  transform: scale(1.05);
}

/* 价格表 */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-top: 40px;
}
.pricing-card {
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 16px;
  padding: 40px 30px;
  position: relative;
  transition: all 0.3s ease;
}
.pricing-card:hover {
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.1);
  transform: translateY(-5px);
}
.pricing-card.featured {
  border-color: #1f5bff;
  box-shadow: 0 20px 50px rgba(31, 91, 255, 0.2);
  transform: scale(1.05);
}
.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: #1f5bff;
  color: #fff;
  padding: 4px 16px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
}
.pricing-header h3 {
  font-size: 22px;
  margin-bottom: 20px;
  text-align: center;
  color: #1a1a2e;
}
.pricing-price {
  text-align: center;
  margin-bottom: 30px;
}
.price-amount {
  font-size: 48px;
  font-weight: bold;
  color: #1f5bff;
}
.price-period {
  color: #999;
  margin-left: 4px;
}
.pricing-features {
  list-style: none;
  padding: 0;
  margin: 0 0 30px;
}
.pricing-features li {
  padding: 10px 0;
  border-bottom: 1px solid #f0f0f0;
  color: #666;
  position: relative;
  padding-left: 24px;
}
.pricing-features li:before {
  content: "✓";
  position: absolute;
  left: 0;
  color: #1f5bff;
  font-weight: bold;
}
.pricing-btn {
  text-align: center;
}
.pricing-btn .btn {
  display: inline-block;
  padding: 12px 40px;
  border-radius: 25px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s;
}
.pricing-btn .btn-primary {
  background: #1f5bff;
  color: #fff;
}
.pricing-btn .btn-primary:hover {
  background: #1749cc;
}

/* 客户评价 */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-top: 40px;
}
.testimonial-card {
  background: #fff;
  padding: 30px;
  border-radius: 16px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}
.testimonial-content {
  margin-bottom: 24px;
}
.testimonial-content p {
  color: #666;
  line-height: 1.8;
  font-style: italic;
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}
.testimonial-avatar img {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  object-fit: cover;
}
.avatar-placeholder {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: #1f5bff;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 20px;
}
.testimonial-info strong {
  display: block;
  color: #1a1a2e;
}
.testimonial-info span {
  color: #999;
  font-size: 13px;
}

/* 响应式 - 新模块 */
@media (max-width: 992px) {
  .icon-features-grid,
  .testimonials-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .team-grid .team-member {
    flex: 0 0 calc(50% - 15px);
  }
  .partners-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
  }
  .pricing-card.featured {
    transform: none;
  }
}
@media (max-width: 640px) {
  .icon-features-grid,
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
  .team-grid .team-member {
    flex: 0 0 260px;
    min-width: 260px;
  }
  .partners-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .custom-gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .team-member-photo {
    width: 140px;
    height: 140px;
  }
}

/* ============== 新扩展模块样式 ============== */

/* 多列文本 */
.custom-columns-grid {
  display: grid;
  gap: 30px;
  margin-top: 40px;
}
.custom-columns-grid.columns-2 { grid-template-columns: repeat(2, 1fr); }
.custom-columns-grid.columns-3 { grid-template-columns: repeat(3, 1fr); }
.custom-columns-grid.columns-4 { grid-template-columns: repeat(4, 1fr); }
.custom-column-item {
  padding: 30px;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
}
.custom-column-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1);
}
.custom-column-icon {
  font-size: 36px;
  margin-bottom: 16px;
}
.custom-column-item h3 {
  font-size: 18px;
  margin-bottom: 12px;
  color: #1a1a2e;
}
.custom-column-item p {
  color: #666;
  line-height: 1.7;
}

/* 新闻列表 */
.custom-news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-top: 40px;
}
.news-card {
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  transition: all 0.3s ease;
}
.news-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1);
}
.news-thumb img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}
.news-body {
  padding: 24px;
}
.news-date {
  font-size: 13px;
  color: #999;
  display: block;
  margin-bottom: 10px;
}
.news-body h3 {
  font-size: 18px;
  margin-bottom: 12px;
  line-height: 1.5;
}
.news-body h3 a {
  color: #1a1a2e;
  text-decoration: none;
}
.news-body h3 a:hover { color: #1f5bff; }
.news-body p {
  color: #666;
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 16px;
}
.news-more {
  color: #1f5bff;
  font-size: 14px;
  text-decoration: none;
  font-weight: 500;
}
.news-more:hover { text-decoration: underline; }

/* 社交媒体 */
.custom-social-grid {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: 40px;
}
.custom-social-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100px;
  height: 100px;
  background: #fff;
  border-radius: 12px;
  text-decoration: none;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.06);
}
.custom-social-item:hover {
  transform: translateY(-4px);
  background: #1f5bff;
}
.custom-social-item:hover .social-name {
  color: #fff;
}
.social-icon {
  font-size: 32px;
  margin-bottom: 6px;
}
.social-name {
  font-size: 12px;
  color: #666;
}

/* 选项卡 */
.custom-tabs {
  margin-top: 30px;
}
.custom-tabs-title {
  font-size: 28px;
  margin-bottom: 30px;
  text-align: center;
}
.custom-tabs-nav {
  display: flex;
  gap: 0;
  border-bottom: 2px solid #e5e7eb;
  margin-bottom: 30px;
}
.custom-tab-btn {
  padding: 14px 28px;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  cursor: pointer;
  font-size: 16px;
  color: #666;
  font-weight: 500;
  transition: all 0.3s;
}
.custom-tab-btn:hover {
  color: #1f5bff;
}
.custom-tab-btn.active {
  color: #1f5bff;
  border-bottom-color: #1f5bff;
}
.custom-tab-panel {
  display: none;
}
.custom-tab-panel.active {
  display: block;
  animation: fadeIn 0.3s ease;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}
.custom-tab-img {
  margin-bottom: 20px;
  border-radius: 12px;
  overflow: hidden;
}
.custom-tab-img img {
  width: 100%;
  height: 300px;
  object-fit: cover;
}
.custom-tab-text {
  color: #333;
  line-height: 1.8;
}

/* 倒计时 */
.custom-countdown-section {
  text-align: center;
  color: #fff;
}
.custom-countdown-title {
  font-size: 32px;
  color: #fff;
  margin-bottom: 40px;
}
.custom-countdown {
  display: flex;
  justify-content: center;
  gap: 30px;
}
.countdown-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  padding: 30px 40px;
  border-radius: 16px;
  min-width: 120px;
}
.countdown-num {
  font-size: 56px;
  font-weight: bold;
  line-height: 1;
}
.countdown-label {
  font-size: 14px;
  margin-top: 8px;
  opacity: 0.8;
}

/* 步骤流程 */
.custom-steps-list {
  display: flex;
  justify-content: space-between;
  margin-top: 40px;
  position: relative;
}
.custom-step-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
  text-align: center;
  position: relative;
  padding: 0 20px;
}
.step-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, #1f5bff 0%, #0b42c9 100%);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: bold;
  margin-bottom: 16px;
  z-index: 2;
}
.step-content h3 {
  font-size: 18px;
  margin-bottom: 8px;
  color: #1a1a2e;
}
.step-content p {
  color: #666;
  font-size: 14px;
  line-height: 1.6;
}
.step-line {
  position: absolute;
  top: 30px;
  left: 50%;
  width: 100%;
  height: 2px;
  background: #d0d9ec;
  z-index: 1;
}

/* 对比表格 */
.custom-comparison-table {
  margin-top: 40px;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}
.comparison-row {
  display: grid;
  border-bottom: 1px solid #e5e7eb;
}
.comparison-row:last-child { border-bottom: none; }
.comparison-header {
  background: #1f5bff;
  color: #fff;
  font-weight: 600;
}
.comparison-row.featured {
  background: #fff8e1;
}
.comparison-cell {
  padding: 16px 20px;
  text-align: center;
  font-size: 14px;
}
.comparison-header .comparison-cell {
  padding: 18px 20px;
}

/* 联系表单 */
.custom-contact-form {
  background: #fff;
  padding: 40px;
  border-radius: 16px;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.08);
  margin-top: 30px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}
.form-group {
  margin-bottom: 20px;
}
.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: #333;
  margin-bottom: 8px;
}
.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid #d0d9ec;
  border-radius: 8px;
  font-size: 14px;
  transition: border-color 0.3s;
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: #1f5bff;
  outline: none;
  box-shadow: 0 0 0 3px rgba(31, 91, 255, 0.1);
}
.form-group textarea {
  resize: vertical;
  min-height: 120px;
}
.custom-contact-form button[type="submit"] {
  width: 100%;
  padding: 14px;
  background: #1f5bff;
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.3s;
}
.custom-contact-form button[type="submit"]:hover {
  background: #0b42c9;
}
.form-result {
  margin-top: 16px;
  padding: 12px;
  border-radius: 8px;
  text-align: center;
  font-size: 14px;
  display: none;
}
.form-result.success {
  display: block;
  background: #d4edda;
  color: #155724;
}
.form-result.error {
  display: block;
  background: #f8d7da;
  color: #721c24;
}

/* 响应式 - 新扩展模块 */
@media (max-width: 992px) {
  .custom-columns-grid.columns-3,
  .custom-columns-grid.columns-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .custom-news-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .custom-steps-list {
    flex-wrap: wrap;
    gap: 30px;
  }
  .custom-step-item {
    flex: 0 0 calc(50% - 15px);
  }
  .step-line { display: none; }
  .custom-countdown {
    gap: 15px;
  }
  .countdown-item {
    padding: 20px 25px;
    min-width: 90px;
  }
  .countdown-num {
    font-size: 40px;
  }
}
@media (max-width: 640px) {
  .custom-columns-grid.columns-2,
  .custom-columns-grid.columns-3,
  .custom-columns-grid.columns-4 {
    grid-template-columns: 1fr;
  }
  .custom-news-grid {
    grid-template-columns: 1fr;
  }
  .custom-step-item {
    flex: 0 0 100%;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .custom-countdown {
    flex-wrap: wrap;
  }
  .countdown-item {
    flex: 0 0 calc(50% - 10px);
    margin-bottom: 20px;
  }
  .custom-contact-form {
    padding: 24px;
  }
  .custom-tabs-nav {
    flex-wrap: wrap;
  }
  .custom-tab-btn {
    flex: 1;
    padding: 10px 16px;
    font-size: 14px;
  }
}

/* ============== 媒体文件夹样式（后台） ============== */
.qicheng-media-quick-links {
  margin: 10px 0;
  padding: 10px 16px;
  background: linear-gradient(135deg, #f5f9ff 0%, #e8f0ff 100%);
  border: 1px solid #d0d9ec;
  border-radius: 10px;
  font-size: 14px;
}
.qicheng-media-quick-links strong {
  color: #1f5bff;
}
.qicheng-media-quick-links a {
  color: #1f5bff;
  text-decoration: none;
  margin: 0 6px;
}
.qicheng-media-quick-links a:hover {
  color: #1749cc;
  text-decoration: underline;
}

/* wp.media 中的文件夹筛选器 */
.qicheng-media-folder-filter {
  display: inline-block;
  margin-left: 12px;
}
.qicheng-media-folder-filter select {
  height: 32px;
  padding: 0 12px;
  border: 1px solid #d0d9ec;
  border-radius: 6px;
  background: #fff;
  font-size: 13px;
  color: #1a1a2e;
  cursor: pointer;
  min-width: 140px;
}
.qicheng-media-folder-filter select:focus {
  border-color: #1f5bff;
  outline: none;
  box-shadow: 0 0 0 2px rgba(31, 91, 255, 0.15);
}

/* 媒体库列表页的文件夹筛选 */
#qicheng-media-filter {
  height: 32px;
  padding: 0 12px;
  border: 1px solid #d0d9ec;
  border-radius: 6px;
  background: #fff;
  font-size: 13px;
  color: #1a1a2e;
  cursor: pointer;
  margin-left: 10px;
}
#qicheng-media-filter:focus {
  border-color: #1f5bff;
  outline: none;
}

/* 媒体库列表中文件夹列的样式 */
.column-qicheng_media_folder {
  width: 120px;
}
.column-qicheng_media_folder a {
  color: #1f5bff;
  text-decoration: none;
}
.column-qicheng_media_folder a:hover {
  text-decoration: underline;
}

/* 媒体文件夹分类页的样式 */
.taxonomy-qicheng_media_folder #col-left {
  background: #fff;
  padding: 20px;
  border-radius: 10px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
}
.taxonomy-qicheng_media_folder #col-right {
  background: #fff;
  padding: 20px;
  border-radius: 10px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
}

/* 图片拖拽上传的激活状态 */
.dyn-image-field.drag-over-active,
.dyn-image-upload.drag-over-active,
.quf-image-wrap.drag-over-active {
  border-color: #1f5bff !important;
  background: #e8f0ff !important;
  border-style: solid !important;
  transform: scale(1.01);
  transition: all 0.2s ease;
}

/* 媒体文件夹管理页面的自定义样式 */
.qicheng-media-folder-manager {
  max-width: 960px;
  margin: 20px auto;
  padding: 24px;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.06);
}
.qicheng-media-folder-manager h2 {
  font-size: 20px;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid #e8f0ff;
  color: #1a1a2e;
}
.qicheng-media-folder-manager .folder-tree {
  list-style: none;
  padding: 0;
}
.qicheng-media-folder-manager .folder-tree li {
  padding: 8px 12px;
  margin: 4px 0;
  background: #f8fafc;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: all 0.2s;
}
.qicheng-media-folder-manager .folder-tree li:hover {
  background: #e8f0ff;
}
.qicheng-media-folder-manager .folder-name {
  font-weight: 600;
  color: #1a1a2e;
}
.qicheng-media-folder-manager .folder-count {
  color: #666;
  font-size: 13px;
  margin-left: 8px;
}
.qicheng-media-folder-manager .folder-actions a {
  color: #1f5bff;
  text-decoration: none;
  margin-left: 8px;
  font-size: 13px;
}
.qicheng-media-folder-manager .folder-actions a:hover {
  text-decoration: underline;
}

/* ================================================================
   ================  全设备响应式适配（Responsive）  ===============
   ================================================================ */

/* ---- (A) 移动端汉堡菜单 + 抽屉导航 ---- */
.mobile-menu-btn {
  display: none;
  width: 40px; height: 40px;
  background: transparent;
  border: none;
  padding: 8px 6px;
  cursor: pointer;
  flex-direction: column;
  justify-content: space-between;
  flex-shrink: 0;
  position: relative;
  z-index: 1001;
}
.mobile-menu-btn span {
  display: block;
  width: 100%;
  height: 2.5px;
  background: #1f2a44;
  border-radius: 3px;
  transition: all 0.3s ease;
  transform-origin: center;
}
.mobile-menu-btn.active span:nth-child(1) {
  transform: translateY(9px) rotate(45deg);
}
.mobile-menu-btn.active span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.mobile-menu-btn.active span:nth-child(3) {
  transform: translateY(-9px) rotate(-45deg);
}

/* 遮罩 */
.mobile-menu-mask {
  position: fixed; inset: 0;
  background: rgba(15, 28, 60, 0.55);
  backdrop-filter: blur(2px);
  z-index: 1002;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.28s ease, visibility 0.28s ease;
}
.mobile-menu-mask.show {
  opacity: 1;
  visibility: visible;
}

/* 抽屉 */
.mobile-menu-drawer {
  position: fixed;
  top: 0; right: 0; bottom: 0;
  width: min(320px, 86vw);
  max-width: 100%;
  background: #fff;
  z-index: 1003;
  transform: translateX(100%);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
  box-shadow: -8px 0 30px rgba(0, 0, 0, 0.1);
}
.mobile-menu-drawer.show {
  transform: translateX(0);
}
.mobile-menu-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px;
  border-bottom: 1px solid #eef2fb;
  background: linear-gradient(135deg, #f0f5ff 0%, #ffffff 100%);
  flex-shrink: 0;
}
.mobile-menu-title {
  font-weight: 700;
  font-size: 16px;
  color: #1f2a44;
}
.mobile-menu-close {
  width: 34px; height: 34px;
  border-radius: 50%;
  background: #eef2fb;
  border: none;
  font-size: 22px;
  line-height: 1;
  color: #5f6f8c;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}
.mobile-menu-close:hover {
  background: #1f5bff;
  color: #fff;
  transform: rotate(90deg);
}

/* 移动端导航列表 */
.mobile-nav {
  list-style: none;
  margin: 0;
  padding: 10px 0;
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}
.mobile-nav > li {
  border-bottom: 1px solid #f1f4fb;
}
.mobile-nav > li:last-child {
  border-bottom: none;
}
.mobile-nav > li > a {
  display: block;
  padding: 14px 22px;
  color: #1f2a44;
  font-weight: 500;
  font-size: 15px;
  text-decoration: none;
  position: relative;
  transition: all 0.2s;
}
.mobile-nav > li > a:hover,
.mobile-nav > li.current-menu-item > a {
  color: #1f5bff;
  background: #f0f5ff;
  padding-left: 28px;
}
.mobile-nav > li.current-menu-item > a::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, #1f5bff, #4f86ff);
}
.mobile-nav .sub-menu {
  list-style: none;
  padding: 0 0 6px 0;
  margin: 0;
  background: #fafcff;
}
.mobile-nav .sub-menu li a {
  display: block;
  padding: 10px 22px 10px 42px;
  color: #5f6f8c;
  font-size: 14px;
  text-decoration: none;
}
.mobile-nav .sub-menu li a:hover {
  color: #1f5bff;
}

/* 抽屉底部电话 */
.mobile-menu-tel {
  margin: 12px 16px 20px;
  padding: 14px 18px;
  background: linear-gradient(135deg, #1f5bff 0%, #4f86ff 100%);
  color: #fff !important;
  border-radius: 12px;
  text-decoration: none;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-weight: 600;
  font-size: 16px;
  box-shadow: 0 8px 22px rgba(31, 91, 255, 0.3);
  flex-shrink: 0;
}
.mobile-menu-tel svg {
  width: 18px; height: 18px;
}

/* ---- (B) 平板/手机：Header & 导航栏 ---- */
@media (max-width: 1100px) {
  .main-nav { display: none; }
  .mobile-menu-btn { display: flex; }
  .header-inner {
    gap: 16px;
    height: 60px;
  }
  .site-header + .page-banner,
  .page-banner { margin-top: 60px; min-height: 440px; }
  body { padding-top: 60px; }
  body.admin-bar { padding-top: calc(60px + 32px); }
  .main-nav > li > a { height: 60px; line-height: 60px; }
  .header-tel {
    padding: 6px 14px;
    font-size: 13px;
  }
}
@media (max-width: 760px) {
  .header-tel .header-tel-text { display: none; }
  .header-tel {
    padding: 7px 10px;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    justify-content: center;
    gap: 0;
  }
  .header-tel svg { width: 18px; height: 18px; }
  .header-inner { height: 56px; }
  body { padding-top: 56px; }
  body.admin-bar { padding-top: calc(56px + 32px); }
  .site-logo img { height: 30px; }
  .site-logo { font-size: 17px; }
}
@media (max-width: 480px) {
  .header-inner { height: 52px; gap: 10px; }
  body { padding-top: 52px; }
  body.admin-bar { padding-top: calc(52px + 32px); }
  .site-logo span { display: none; }
  .mobile-menu-btn { width: 36px; height: 36px; padding: 6px 5px; }
  .header-tel { width: 36px; height: 36px; padding: 5px; }
}

/* ---- (C) 全局：容器、字体、段落 ---- */
@media (max-width: 992px) {
  .container { max-width: 94%; }
  .container-sm { max-width: 94%; }
  .section { padding: 60px 0; }
  h1 { font-size: 34px; }
  h2 { font-size: 26px; }
  .section-title { margin-bottom: 36px; }
  .section-title h2 { font-size: 26px; }
}
@media (max-width: 768px) {
  html, body { font-size: 14.5px; }
  .section { padding: 50px 0; }
  h1 { font-size: 30px; }
  h2 { font-size: 23px; }
  h3 { font-size: 19px; }
  h4 { font-size: 17px; }
  .section-title { margin-bottom: 30px; }
  .section-title h2 { font-size: 23px; }
  .section-title p { font-size: 14px; letter-spacing: 1px; }
  .btn { padding: 11px 22px; font-size: 14px; border-radius: 8px; }
}
@media (max-width: 640px) {
  .container { max-width: 95%; }
  .container-sm { max-width: 95%; }
  .section { padding: 42px 0; }
  html, body { font-size: 14px; }
  h1 { font-size: 26px; }
  h2 { font-size: 21px; }
  h3 { font-size: 18px; }
  .section-title { margin-bottom: 26px; }
  .section-title h2 { font-size: 21px; }
  .section-title-en { font-size: 11px; letter-spacing: 2px; }
  .btn { padding: 10px 20px; }
}
@media (max-width: 480px) {
  .container { max-width: 96%; }
  .section { padding: 36px 0; }
  html, body { font-size: 13.5px; line-height: 1.65; }
  h1 { font-size: 23px; }
  h2 { font-size: 19px; }
  h3 { font-size: 17px; }
  h4 { font-size: 15.5px; }
  p { font-size: 14px; }
}
@media (max-width: 380px) {
  .container { max-width: 97%; }
  .section { padding: 30px 0; }
  html, body { font-size: 13px; }
  h1 { font-size: 21px; }
  h2 { font-size: 17.5px; }
  h3 { font-size: 16px; }
}

/* ---- (D) Banner ---- */
@media (max-width: 1100px) {
  .banner-title { font-size: 40px; }
  .banner-title small { font-size: 24px; }
}
@media (max-width: 992px) {
  .page-banner { min-height: 420px; }
  .banner-title { font-size: 34px; }
  .banner-title small { font-size: 21px; }
  .banner-subtitle { font-size: 15px; max-width: 500px; }
  .banner-tag { font-size: 12px; padding: 5px 14px; }
  .banner-btn { padding: 12px 28px; font-size: 14px; }
}
@media (max-width: 768px) {
  .page-banner { min-height: 380px; }
  .banner-title { font-size: 28px; letter-spacing: 0.5px; }
  .banner-title small { font-size: 18px; }
  .banner-subtitle { font-size: 14px; max-width: 100%; margin-bottom: 26px; }
  .banner-btn { padding: 11px 24px; font-size: 14px; }
}
@media (max-width: 640px) {
  .page-banner { min-height: 340px; background-position: center center; }
  .banner-tag { padding: 4px 12px; margin-bottom: 16px; }
  .banner-title { font-size: 24px; }
  .banner-title small { font-size: 16px; margin-bottom: 6px; }
  .banner-subtitle { font-size: 13px; line-height: 1.6; margin-bottom: 22px; }
  .banner-btn { padding: 10px 22px; font-size: 13px; }
}
@media (max-width: 480px) {
  .page-banner { min-height: 310px; }
  .banner-content { text-align: center; }
  .banner-tag { font-size: 11px; padding: 4px 10px; }
  .banner-title { font-size: 22px; }
  .banner-title small { font-size: 15px; }
  .banner-subtitle { font-size: 12.5px; }
  .banner-btn { width: 100%; max-width: 280px; }
}

/* ---- (E) Contact Block / Cards / Stats / Service / Cases / Products ---- */
@media (max-width: 1100px) {
  .contact-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
}
@media (max-width: 768px) {
  .contact-block { padding: 36px 0 0; }
  .contact-card { padding: 18px; gap: 14px; }
  .contact-icon { width: 48px; height: 48px; font-size: 18px; }
  .contact-info h4 { font-size: 15px; }
  .contact-info span { font-size: 13px; }
}
@media (max-width: 560px) {
  .contact-grid { grid-template-columns: 1fr; gap: 14px; }
}

/* Stats 数据统计 */
@media (max-width: 768px) {
  .stats-box { gap: 18px; }
  .stat-item { padding: 22px 16px; }
  .stat-num { font-size: 34px; }
  .stat-label { font-size: 13px; }
}
@media (max-width: 480px) {
  .stats-box { grid-template-columns: repeat(2, 1fr); }
  .stat-item { padding: 18px 12px; border-radius: 12px; }
  .stat-num { font-size: 28px; }
  .stat-label { font-size: 12px; }
}

/* 首页服务、案例、产品 */
@media (max-width: 768px) {
  .service-grid,
  .cases-grid,
  .products-grid { gap: 18px; }
  .service-info,
  .cases-info,
  .products-info { padding: 14px 16px; }
  .service-info h4,
  .cases-info h4,
  .products-info h4 { font-size: 15px; }
}

/* Service Grid 5列 */
@media (max-width: 768px) {
  .service-grid-5 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .service-grid-5 { grid-template-columns: 1fr; }
  .service-grid-4 { grid-template-columns: 1fr; }
}

/* Feature Cards 时代印记 */
@media (max-width: 480px) {
  .features-grid { grid-template-columns: 1fr; gap: 14px; }
  .feature-card { padding: 18px 16px; }
  .feature-year { font-size: 22px; margin-bottom: 8px; }
  .feature-content h4 { font-size: 15px; }
  .feature-content p { font-size: 12.5px; }
}

/* Flow Steps / Ability Icons / Course Grid / Eco Box */
@media (max-width: 768px) {
  .ability-icons { grid-template-columns: repeat(3, 1fr); gap: 14px; }
  .ability-icon { width: 60px; height: 60px; font-size: 24px; }
  .ability-name { font-size: 12px; }
  .course-level-grid,
  .course-curriculum { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .flow-steps { grid-template-columns: repeat(2, 1fr); gap: 18px; }
}
@media (max-width: 560px) {
  .flow-steps { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .ability-icons { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .course-level-grid,
  .course-curriculum { grid-template-columns: 1fr; }
  .eco-buttons { gap: 12px; }
  .eco-buttons .btn { width: 100%; }
}

/* ---- (F) 自定义页面模块：Custom Cards / Text / CTA / ImageText ---- */
@media (max-width: 992px) {
  .custom-cards-grid { gap: 18px; }
  .custom-card-body { padding: 16px 18px 20px; }
  .custom-card-body h3 { font-size: 17px; }
  .custom-card-body p { font-size: 13.5px; }
}
@media (max-width: 768px) {
  .custom-image-text-wrap { gap: 26px; }
  .custom-image-text-body h2 { font-size: 22px; margin-bottom: 12px; }
  .custom-image-text-body p { font-size: 14px; line-height: 1.7; }
  .custom-cta-inner { padding: 40px 24px; }
  .custom-cta-inner h2 { font-size: 24px; }
  .custom-cta-inner p { font-size: 14px; }
}
@media (max-width: 640px) {
  .custom-cards-section { padding: 50px 0; }
  .custom-image-text-section { padding: 50px 0; }
  .custom-image-text-body h2 { font-size: 20px; }
  .custom-cta-inner { padding: 32px 18px; }
  .custom-cta-inner h2 { font-size: 21px; }
  .custom-text-content h1 { font-size: 24px; }
  .custom-text-content h2 { font-size: 21px; }
  .custom-text-content h3 { font-size: 18px; }
}
@media (max-width: 480px) {
  .custom-card-body { padding: 14px 16px 18px; }
  .custom-card-body h3 { font-size: 16px; }
  .custom-card-body p { font-size: 13px; }
  .custom-cta-inner { text-align: center; padding: 28px 16px; }
  .custom-cta-inner h2 { font-size: 19px; }
  .custom-cta-inner p { font-size: 13px; }
  .custom-cta-btn { width: 100%; }
}

/* ---- (G) Team / Gallery / Pricing / Partners / IconFeatures / Testimonials ---- */
@media (max-width: 992px) {
  /* 团队成员（桌面已经是横向滚动，这里仅调整卡片） */
  .team-member { padding: 22px 16px; border-radius: 14px; }
  .team-member h3 { font-size: 16px; }
  .team-member-role { font-size: 13px; }
  .team-member-photo { width: 110px; height: 110px; }
}
@media (max-width: 640px) {
  .team-grid { gap: 18px; padding: 6px 6px 20px; }
  .team-member { padding: 18px 14px; flex: 0 0 240px; min-width: 240px; max-width: 240px; }
  .team-member-photo { width: 100px; height: 100px; }
  .team-member h3 { font-size: 15px; }
  .team-member-role { font-size: 12.5px; }
  .team-social { font-size: 12px; }

  .icon-features-grid { gap: 16px; }
  .icon-feature-item { padding: 22px 14px; border-radius: 10px; }
  .icon-feature-icon { font-size: 34px; margin-bottom: 12px; }
  .icon-feature-item h3 { font-size: 16px; }
  .icon-feature-item p { font-size: 13px; }

  .partners-grid { gap: 12px; }
  .partner-item { height: 80px; padding: 14px; border-radius: 8px; }
  .partner-item img { max-height: 40px; }

  .testimonials-grid { gap: 16px; }
  .testimonial-card { padding: 20px; border-radius: 12px; }
  .testimonial-content p { font-size: 13.5px; }

  .pricing-card { padding: 30px 22px; border-radius: 14px; }
  .pricing-header h3 { font-size: 19px; }
  .price-amount { font-size: 38px; }
  .pricing-features li { font-size: 13px; padding: 8px 0 8px 22px; }
  .pricing-btn .btn { padding: 11px 32px; font-size: 14px; }
}
@media (max-width: 480px) {
  .gallery-item { border-radius: 6px; }
  .custom-gallery-grid { gap: 10px; }
  .partners-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ---- (H) FAQ / Video / News / Columns / Social ---- */
@media (max-width: 768px) {
  .faq-question { padding: 16px 0; font-size: 15px; }
  .faq-icon { width: 22px; height: 22px; font-size: 14px; }
  .faq-answer-inner { font-size: 13.5px; padding: 0 0 16px; }

  .custom-video-section { padding: 50px 0; }
  .custom-video-wrap { margin-top: 24px; }

  .custom-news-grid { gap: 18px; }
  .news-thumb img { height: 190px; }
  .news-body { padding: 18px; }
  .news-date { font-size: 12px; }
  .news-body h3 { font-size: 16px; }
  .news-body p { font-size: 13px; }

  .custom-columns-grid { gap: 18px; }
  .custom-column-item { padding: 22px; border-radius: 10px; }
  .custom-column-icon { font-size: 30px; margin-bottom: 12px; }
  .custom-column-item h3 { font-size: 16px; }
  .custom-column-item p { font-size: 13.5px; }

  .custom-social-grid { gap: 14px; }
  .custom-social-item { width: 84px; height: 84px; border-radius: 10px; }
  .social-icon { font-size: 28px; }
  .social-name { font-size: 11px; }
}
@media (max-width: 480px) {
  .custom-social-item { width: 72px; height: 72px; }
  .social-icon { font-size: 24px; }
}

/* ---- (I) Tabs / Countdown / Steps / Comparison / Contact Form ---- */
@media (max-width: 768px) {
  .custom-tabs-nav { gap: 0; margin-bottom: 22px; }
  .custom-tab-btn { padding: 12px 18px; font-size: 14.5px; white-space: nowrap; }

  .custom-countdown-title { font-size: 26px; margin-bottom: 28px; }
  .countdown-item { padding: 22px 20px; min-width: 100px; border-radius: 14px; }
  .countdown-num { font-size: 44px; }
  .countdown-label { font-size: 13px; margin-top: 6px; }

  .custom-steps-list { margin-top: 28px; }
  .step-icon { width: 52px; height: 52px; font-size: 22px; margin-bottom: 12px; }
  .step-content h3 { font-size: 16px; margin-bottom: 6px; }
  .step-content p { font-size: 13px; }

  .comparison-cell { padding: 12px 14px; font-size: 13.5px; }
  .comparison-header .comparison-cell { padding: 14px; }

  .custom-contact-form { padding: 28px; border-radius: 14px; }
  .form-row { gap: 16px; margin-bottom: 16px; }
  .form-group { margin-bottom: 16px; }
  .form-group label { font-size: 13.5px; margin-bottom: 6px; }
  .form-group input,
  .form-group textarea { padding: 10px 14px; border-radius: 7px; font-size: 13.5px; }
  .form-group textarea { min-height: 100px; }
}
@media (max-width: 640px) {
  .custom-tabs-title { font-size: 22px; margin-bottom: 22px; }
  .custom-tab-btn { padding: 10px 14px; font-size: 13.5px; }
  .custom-tab-img img { height: 220px; }

  .custom-countdown-title { font-size: 22px; margin-bottom: 24px; }
  .custom-countdown { gap: 10px; }
  .countdown-item { padding: 18px 14px; border-radius: 12px; }
  .countdown-num { font-size: 36px; }
  .countdown-label { font-size: 12px; }

  .step-icon { width: 46px; height: 46px; font-size: 19px; }

  /* 对比表：小屏每行独立卡片 */
  .custom-comparison-table { border-radius: 10px; overflow: visible; box-shadow: none; }
  .comparison-row {
    grid-template-columns: 1fr !important;
    border: 1px solid #e5e7eb;
    border-radius: 10px;
    margin-bottom: 12px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
  }
  .comparison-row:last-child { margin-bottom: 0; }
  .comparison-row + .comparison-row { border-top: 1px solid #e5e7eb; }
  .comparison-cell {
    padding: 12px 16px;
    border-bottom: 1px solid #f0f2f6;
    text-align: left !important;
    font-size: 13px;
    position: relative;
    padding-left: 50%;
  }
  .comparison-cell::before {
    content: attr(data-label);
    position: absolute;
    left: 14px; top: 12px;
    font-weight: 600;
    color: #1f2a44;
    font-size: 12.5px;
    width: 40%;
  }
  .comparison-row.comparison-header { display: none; }
  .comparison-row.featured { background: #fffef0; }

  .custom-contact-form { padding: 22px 18px; border-radius: 12px; margin-top: 24px; }
  .custom-contact-form button[type="submit"] { padding: 12px; font-size: 15px; border-radius: 10px; }
}
@media (max-width: 480px) {
  .custom-countdown { flex-wrap: wrap; }
  .countdown-item { flex: 0 0 calc(50% - 5px); padding: 16px 10px; }
  .countdown-num { font-size: 30px; }
  .countdown-label { font-size: 11.5px; }
  .custom-countdown-title { font-size: 19px; margin-bottom: 20px; }
  .comparison-cell { font-size: 12.5px; padding: 10px 14px 10px 48%; }
  .comparison-cell::before { font-size: 11.5px; left: 12px; }
}

/* ---- (J) Footer ---- */
@media (max-width: 992px) {
  .footer-top { gap: 30px; }
  .footer-brand p { font-size: 14px; }
  .footer-col h4 { font-size: 16px; margin-bottom: 16px; }
  .footer-links li { font-size: 14px; }
}
@media (max-width: 768px) {
  .footer-top { grid-template-columns: 1fr; padding: 50px 0 30px; gap: 26px; }
  .footer-brand { text-align: center; }
  .footer-brand-desc { margin: 10px auto 0; }
  .footer-contact-info { justify-content: center; }
  .footer-col h4 { text-align: center; font-size: 15.5px; margin-bottom: 14px; }
  .footer-links { text-align: center; }
  .footer-links li { font-size: 13.5px; padding: 6px 0; }
  .footer-bottom { padding: 18px 0; flex-direction: column; gap: 10px; text-align: center; font-size: 12.5px; }
  .footer-social { justify-content: center; }
}
@media (max-width: 480px) {
  .footer-top { padding: 40px 0 24px; gap: 22px; }
  .footer-brand-logo img { height: 34px; }
  .footer-contact-item { font-size: 13px; padding: 8px 14px; border-radius: 18px; }
  .footer-contact-item svg { width: 14px; height: 14px; }
}

/* ---- (K) 特殊组件：Page Hero / BackToTop / AI-Timeline / Solutions Map ---- */
@media (max-width: 768px) {
  .ai-space-section,
  .solutions-section,
  .eco-section { padding: 50px 0; }
  .scheme-section { padding: 0; }

  /* AI Space */
  .ai-space-tabs { gap: 10px; padding: 0; }
  .ai-space-tab { padding: 8px 14px; font-size: 13px; }
  .ai-space-gallery { gap: 12px; margin-top: 24px; }

  /* Solutions Diagram */
  .solutions-diagram { width: 100%; height: 600px; }
  .sol-node { width: 100px; padding: 10px; }
  .sol-node .icon { width: 44px; height: 44px; font-size: 18px; }
  .sol-node h4 { font-size: 13px; margin-top: 8px; }

  /* Map Pins */
  .map-pin { width: 160px; font-size: 11.5px; padding: 8px 10px; }
}
@media (max-width: 640px) {
  .back-to-top { width: 40px; height: 40px; font-size: 16px; bottom: 16px; right: 16px; }
  .solutions-diagram { height: 780px; }
  .sol-node { width: 90px; }
  .sol-node .icon { width: 38px; height: 38px; font-size: 16px; }
  .sol-node h4 { font-size: 12px; }
  .ai-space-tabs { gap: 8px; }
  .ai-space-tab { padding: 7px 12px; font-size: 12.5px; }
  .ai-space-gallery { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .solutions-diagram { height: 880px; }
  .map-pin { width: 140px; padding: 6px 8px; font-size: 11px; }
  .back-to-top { width: 38px; height: 38px; font-size: 15px; bottom: 14px; right: 12px; }
}

/* ---- (L) 安全网：防止水平溢出 ---- */
@media (max-width: 640px) {
  *, *::before, *::after {
    -webkit-tap-highlight-color: transparent;
  }
  img, video, iframe, table {
    max-width: 100% !important;
  }
  table { display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .section-title h2 br { display: none; }
  .banner-title br,
  .banner-subtitle br { display: none; }
}

/* ---- (M) iOS Safari 安全区适配 ---- */
@supports (padding: max(0px)) {
  @media (max-width: 640px) {
    .site-header {
      padding-top: env(safe-area-inset-top);
    }
    .footer-bottom {
      padding-bottom: calc(14px + env(safe-area-inset-bottom));
    }
    .mobile-menu-drawer {
      padding-top: env(safe-area-inset-top);
      padding-bottom: env(safe-area-inset-bottom);
    }
  }
}

/* ===== 文件下载模块 ===== */
.custom-files-section { padding: 70px 0; }
.custom-files-group { margin-bottom: 40px; }
.custom-files-group:last-child { margin-bottom: 0; }
.custom-files-cat-title {
  font-size: 18px;
  font-weight: 700;
  color: #1f2a44;
  margin: 0 0 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid #e5ecf8;
  display: flex;
  align-items: center;
  gap: 8px;
}
.custom-files-cat-title::before {
  content: "";
  display: inline-block;
  width: 4px;
  height: 18px;
  background: linear-gradient(180deg, #1f5bff, #4f86ff);
  border-radius: 2px;
}
.custom-files-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 18px;
}
.custom-file-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 20px;
  background: #fff;
  border: 1px solid #e5ecf8;
  border-radius: 12px;
  transition: all 0.25s;
  position: relative;
}
.custom-file-item:hover {
  border-color: #1f5bff;
  box-shadow: 0 6px 24px rgba(31, 91, 255, 0.12);
  transform: translateY(-2px);
}
.custom-file-icon {
  font-size: 32px;
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f0f5ff;
  border-radius: 10px;
  flex-shrink: 0;
}
.custom-file-info { flex: 1; min-width: 0; }
.custom-file-name {
  font-size: 15px;
  font-weight: 600;
  color: #1f2a44;
  margin: 0 0 6px;
  line-height: 1.4;
  word-break: break-word;
}
.custom-file-desc {
  font-size: 13px;
  color: #6b7a97;
  margin: 0 0 10px;
  line-height: 1.5;
}
.custom-file-meta {
  display: flex;
  gap: 12px;
  font-size: 12px;
  color: #98a4bd;
}
.custom-file-download {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 8px 16px;
  background: linear-gradient(135deg, #1f5bff 0%, #4f86ff 100%);
  color: #fff !important;
  border-radius: 8px;
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  flex-shrink: 0;
  transition: all 0.2s;
}
.custom-file-download:hover {
  background: linear-gradient(135deg, #0b42c9 0%, #3d6eff 100%);
  box-shadow: 0 4px 12px rgba(31, 91, 255, 0.3);
  transform: scale(1.03);
}

/* 文件下载模块 - 响应式 */
@media (max-width: 768px) {
  .custom-files-section { padding: 50px 0; }
  .custom-files-grid { grid-template-columns: 1fr; gap: 14px; }
  .custom-file-item { padding: 14px 16px; gap: 12px; }
  .custom-file-icon { width: 44px; height: 44px; font-size: 26px; }
  .custom-file-name { font-size: 14px; }
  .custom-file-desc { font-size: 12.5px; }
  .custom-file-download { padding: 7px 14px; font-size: 12.5px; }
  .custom-files-cat-title { font-size: 16px; margin-bottom: 16px; }
}
@media (max-width: 480px) {
  .custom-file-item { flex-wrap: wrap; }
  .custom-file-download { width: 100%; justify-content: center; margin-top: 8px; }
}

/* ============== 产品中心 - 科创模块 ============== */

/* —— 通用标题 —— */
.p-section-title {
  font-size: 32px;
  font-weight: 700;
  text-align: center;
  margin: 0 0 12px;
  color: #1a2a4a;
  line-height: 1.3;
}
.p-section-sub {
  text-align: center;
  color: #6b7a99;
  font-size: 15px;
  margin: 0 0 40px;
}

/* —— 科创-一站式服务 —— */
.p-services-section { padding: 80px 0; }
.p-services-wrap {
  display: flex;
  gap: 60px;
  align-items: center;
}
.p-services-text {
  flex: 1;
}
.p-services-title {
  font-size: 36px;
  font-weight: 700;
  color: #1a2a4a;
  margin: 0 0 16px;
  line-height: 1.3;
}
.p-services-sub {
  font-size: 16px;
  color: #6b7a99;
  margin: 0 0 36px;
}
.p-services-features {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.p-service-feature {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.p-service-feat-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  overflow: hidden;
  flex-shrink: 0;
  background: #e8ecf4;
}
.p-service-feat-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.p-feat-icon-placeholder {
  background: linear-gradient(135deg, #667eea, #764ba2);
}
.p-service-feat-body h4 {
  font-size: 17px;
  font-weight: 600;
  color: #1a2a4a;
  margin: 0 0 6px;
}
.p-service-feat-body p {
  font-size: 14px;
  color: #6b7a99;
  margin: 0;
  line-height: 1.6;
}
.p-services-img {
  flex: 1;
  display: flex;
  justify-content: center;
}
.p-services-img img {
  max-width: 100%;
  height: auto;
}

/* —— 科创-解决方案 —— */
.p-solutions-section { padding: 80px 0; background: #f6f8fc; }
.p-solutions-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.p-solution-card {
  background: #fff;
  border-radius: 16px;
  padding: 32px 24px;
  text-align: center;
  transition: transform .3s ease, box-shadow .3s ease;
  border: 1px solid #eef1f8;
}
.p-solution-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 32px rgba(31,91,255,0.12);
}
.p-solution-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 20px;
  border-radius: 20px;
  overflow: hidden;
  background: linear-gradient(135deg, #e8f0ff, #d4e4ff);
}
.p-solution-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.p-sol-icon-placeholder {
  background: linear-gradient(135deg, #667eea, #764ba2);
}
.p-solution-card h4 {
  font-size: 17px;
  font-weight: 600;
  color: #1a2a4a;
  margin: 0 0 10px;
  line-height: 1.4;
}
.p-solution-card p {
  font-size: 13px;
  color: #6b7a99;
  margin: 0;
  line-height: 1.7;
}

/* —— 科创-AI能力矩阵 —— */
.p-ai-matrix-section { padding: 80px 0; }
.p-ai-tabs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.p-ai-tab {
  background: #f6f8fc;
  border-radius: 16px;
  padding: 28px 24px;
  transition: all .3s ease;
  cursor: pointer;
  border: 2px solid transparent;
}
.p-ai-tab.active {
  background: #fff;
  border-color: #1f5bff;
  box-shadow: 0 8px 24px rgba(31,91,255,0.15);
}
.p-ai-tab h4 {
  font-size: 18px;
  font-weight: 600;
  color: #1a2a4a;
  margin: 0 0 16px;
  text-align: center;
}
.p-ai-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}
.p-ai-list li {
  background: #fff;
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 13px;
  color: #4a5878;
  text-align: center;
  border: 1px solid #e8ecf4;
}

/* —— 科创-教学设计 —— */
.p-design-section { padding: 80px 0; background: #f6f8fc; }
.p-design-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.p-design-card {
  background: #fff;
  border-radius: 16px;
  padding: 32px 24px;
  text-align: center;
  position: relative;
  transition: transform .3s ease, box-shadow .3s ease;
  border: 1px solid #eef1f8;
}
.p-design-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 32px rgba(31,91,255,0.12);
}
.p-design-num {
  position: absolute;
  top: 16px;
  left: 20px;
  font-size: 32px;
  font-weight: 800;
  color: #e8ecf4;
  line-height: 1;
}
.p-design-icon {
  width: 64px;
  height: 64px;
  margin: 16px auto 16px;
  border-radius: 16px;
  overflow: hidden;
  background: linear-gradient(135deg, #e8f0ff, #d4e4ff);
}
.p-design-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.p-design-card h4 {
  font-size: 16px;
  font-weight: 600;
  color: #1a2a4a;
  margin: 0 0 10px;
}
.p-design-card p {
  font-size: 13px;
  color: #6b7a99;
  margin: 0;
  line-height: 1.6;
}

/* —— 科创-技能等级体系 —— */
.p-skills-section { padding: 80px 0; }
.p-skills-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 24px;
}
.p-skill-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}
.p-skill-icon {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  overflow: hidden;
  background: linear-gradient(135deg, #667eea, #764ba2);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform .3s ease;
}
.p-skill-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.p-skill-item:hover .p-skill-icon {
  transform: scale(1.08);
}
.p-skill-title {
  font-size: 15px;
  font-weight: 600;
  color: #1a2a4a;
}
.p-skill-desc {
  font-size: 12px;
  color: #6b7a99;
}

/* —— 科创-Lexel体系 —— */
.p-lexel-section { padding: 80px 0; background: #f6f8fc; }
.p-lexel-row {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 24px;
}
.p-lexel-row-steps { margin-bottom: 0; }
.p-lexel-label {
  flex-shrink: 0;
  width: 100px;
  font-size: 16px;
  font-weight: 600;
  color: #1a2a4a;
  text-align: right;
}
.p-lexel-items {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}
.p-lexel-item {
  background: #fff;
  border-radius: 12px;
  padding: 20px 16px;
  text-align: center;
  transition: transform .3s ease, box-shadow .3s ease;
  border: 1px solid #eef1f8;
}
.p-lexel-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(31,91,255,0.1);
}
.p-lexel-badge {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: #1f5bff;
  background: #e8f0ff;
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 10px;
}
.p-lexel-item h5 {
  font-size: 15px;
  font-weight: 600;
  color: #1a2a4a;
  margin: 0 0 6px;
}
.p-lexel-item p {
  font-size: 12px;
  color: #6b7a99;
  margin: 0;
  line-height: 1.5;
}

/* —— 科创-编程平台 —— */
.p-platform-section { padding: 80px 0; }
.p-platform-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.p-platform-card {
  background: #fff;
  border-radius: 16px;
  padding: 32px 24px;
  text-align: center;
  transition: transform .3s ease, box-shadow .3s ease;
  border: 1px solid #eef1f8;
}
.p-platform-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 32px rgba(31,91,255,0.12);
}
.p-platform-logo {
  width: 72px;
  height: 72px;
  margin: 0 auto 16px;
  border-radius: 16px;
  overflow: hidden;
  background: linear-gradient(135deg, #667eea, #764ba2);
  display: flex;
  align-items: center;
  justify-content: center;
}
.p-platform-logo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.p-platform-placeholder {
  font-size: 28px;
  font-weight: 700;
  color: #fff;
}
.p-platform-card h5 {
  font-size: 16px;
  font-weight: 600;
  color: #1a2a4a;
  margin: 0 0 8px;
}
.p-platform-card p {
  font-size: 13px;
  color: #6b7a99;
  margin: 0;
}
.p-platform-bottom {
  margin-top: 40px;
  text-align: center;
}
.p-platform-bottom span {
  display: inline-block;
  padding: 12px 28px;
  background: linear-gradient(135deg, #1f5bff, #4f7fff);
  color: #fff;
  border-radius: 30px;
  font-size: 14px;
  font-weight: 500;
}

/* —— 响应式 —— */
@media (max-width: 1100px) {
  .p-skills-grid { grid-template-columns: repeat(3, 1fr); }
  .p-solutions-grid,
  .p-design-grid,
  .p-platform-grid { grid-template-columns: repeat(2, 1fr); }
  .p-lexel-items { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 768px) {
  .p-services-wrap { flex-direction: column; gap: 40px; }
  .p-services-title { font-size: 28px; }
  .p-skills-grid { grid-template-columns: repeat(2, 1fr); }
  .p-solutions-grid,
  .p-design-grid,
  .p-platform-grid { grid-template-columns: 1fr; }
  .p-lexel-row { flex-direction: column; align-items: stretch; }
  .p-lexel-label { text-align: center; width: auto; }
  .p-lexel-items { grid-template-columns: repeat(2, 1fr); }
  .p-ai-list { grid-template-columns: 1fr; }
  .p-section-title { font-size: 26px; }
}
@media (max-width: 480px) {
  .p-skills-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .p-skill-icon { width: 64px; height: 64px; }
  .p-lexel-items { grid-template-columns: 1fr; }
  .p-ai-tabs { grid-template-columns: 1fr; }
  .p-section-title { font-size: 22px; }
  .p-services-title { font-size: 24px; }
}

/* =========================================================
   可视化画布前端渲染 (Canvas Editor Mode)
   ========================================================= */
.qicheng-canvas-wrap {
  width: 100%;
  position: relative;
  padding: 60px 0;
  background: #fff;
}
.qicheng-canvas-inner {
  position: relative;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  min-height: 600px;
}
.qc-el {
  box-sizing: border-box;
  max-width: 100%;
}
.qc-el-text {
  word-break: break-word;
  white-space: pre-wrap;
}
.qc-el-text p { margin: 0 0 10px; }
.qc-el-text p:last-child { margin-bottom: 0; }
.qc-el-text h1, .qc-el-text h2, .qc-el-text h3, .qc-el-text h4 {
  line-height: 1.3;
  margin: 0 0 12px;
}
.qc-el-text h1:last-child, .qc-el-text h2:last-child, .qc-el-text h3:last-child { margin-bottom: 0; }
.qc-el-button {
  transition: opacity .2s ease, transform .2s ease;
}
.qc-el-button:hover {
  opacity: 0.92;
  transform: translateY(-1px);
}
.qc-el-image {
  transition: box-shadow .3s ease;
}