/* ===== 揽月工业设计 新版样式 ===== */
/* 配色方案：深蓝主色 + 橙色点缀 + 浅灰背景，现代工业风 */

/* Reset & Base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: #2c3e50;
  background: #f0f2f5;
}
a { color: #1a6fb5; text-decoration: none; transition: color .25s, border-color .25s; }
a:hover { color: #e67e22; }
img { max-width: 100%; height: auto; display: block; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ===== Header ===== */
.header {
  background: #0d2137;
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 12px rgba(0,0,0,.25);
}
.header-inner {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  padding: 12px 0;
}
.logo { display: flex; align-items: center; gap: 12px; }
.logo img { height: 52px; width: auto; }
.logo-text { font-size: 20px; font-weight: 700; letter-spacing: 2px; color: #fff; }
.logo-text small { display: block; font-size: 12px; font-weight: 400; color: #8faec5; letter-spacing: 1px; margin-top: 2px; }
.nav { display: flex; gap: 2px; }
.nav a {
  padding: 10px 18px;
  color: #c8dce8;
  font-size: 15px;
  border-radius: 4px;
  transition: background .25s, color .25s;
  position: relative;
}
.nav a:hover { background: rgba(255,255,255,.1); color: #fff; }
.nav a.active {
  background: rgba(230,126,34,.9);
  color: #fff;
  font-weight: 600;
}

/* ===== 下拉菜单 ===== */
.nav-dropdown {
  position: relative;
}
.nav-dropdown > a {
  display: flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
}
.nav-dropdown > a::after {
  content: '';
  display: inline-block;
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 5px solid currentColor;
  opacity: .6;
  transition: transform .2s;
}
.nav-dropdown:hover > a::after,
.nav-dropdown.open > a::after {
  transform: rotate(180deg);
  opacity: 1;
}
.nav-dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: #0d2137;
  min-width: 170px;
  border-radius: 0 0 6px 6px;
  box-shadow: 0 6px 20px rgba(0,0,0,.35);
  z-index: 200;
  overflow: hidden;
}
.nav-dropdown:hover > .nav-dropdown-menu,
.nav-dropdown.open > .nav-dropdown-menu {
  display: block;
}
.nav-dropdown-menu a {
  display: block;
  padding: 12px 20px;
  font-size: 14px;
  border-radius: 0;
  color: #c8dce8;
}
.nav-dropdown-menu a:hover {
  background: rgba(230,126,34,.85);
  color: #fff;
}
.nav-dropdown-menu a.active {
  background: rgba(230,126,34,.9);
  color: #fff;
  font-weight: 600;
}
.menu-toggle {
  display: none;
  background: none;
  border: 1px solid #3a5a78;
  color: #fff;
  font-size: 26px;
  cursor: pointer;
  padding: 6px 12px;
  border-radius: 4px;
  transition: background .2s;
}
.menu-toggle:hover { background: rgba(255,255,255,.1); }

/* ===== Hero Banner ===== */
.hero {
  position: relative;
  overflow: hidden;
  background: #0d2137;
  min-height: 480px;
  display: flex;
  align-items: center;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(13,33,55,.88) 0%, rgba(26,111,181,.45) 100%);
  z-index: 1;
}
.hero-slides {
  position: absolute;
  inset: 0;
  display: flex;
  transition: transform .6s ease;
}
.hero-slides .slide {
  min-width: 100%;
  flex-shrink: 0;
}
.hero-slides .slide img { width: 100%; height: 100%; object-fit: cover; }
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 650px;
  padding: 60px 0;
}
.hero-content h1 {
  font-size: 42px;
  font-weight: 800;
  color: #fff;
  line-height: 1.3;
  margin-bottom: 16px;
  text-shadow: 0 2px 8px rgba(0,0,0,.3);
}
.hero-content h1 span { color: #e67e22; }
.hero-content p {
  font-size: 18px;
  color: #c8dce8;
  line-height: 1.8;
  margin-bottom: 28px;
}
.hero-btn {
  display: inline-block;
  padding: 14px 36px;
  background: #e67e22;
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  border-radius: 6px;
  transition: background .25s, transform .2s;
}
.hero-btn:hover { background: #d35400; color: #fff; transform: translateY(-2px); }
.hero-dots {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 3;
}
.hero-dots span {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255,255,255,.35);
  cursor: pointer;
  transition: background .25s, transform .2s;
}
.hero-dots span.active { background: #e67e22; transform: scale(1.2); }
.hero-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 3;
  background: rgba(0,0,0,.4);
  color: #fff;
  border: none;
  font-size: 30px;
  padding: 16px 14px;
  cursor: pointer;
  transition: background .2s;
}
.hero-nav:hover { background: rgba(230,126,34,.7); }
.hero-nav.prev { left: 0; border-radius: 0 6px 6px 0; }
.hero-nav.next { right: 0; border-radius: 6px 0 0 6px; }

/* Hero 双按钮 */
.hero-btns {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.hero-btn {
  display: inline-block;
  padding: 14px 32px;
  background: #e67e22;
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  border-radius: 6px;
  transition: background .25s, transform .2s;
  text-decoration: none;
}
.hero-btn:hover { background: #d35400; color: #fff; transform: translateY(-2px); }
.hero-btn.primary {
  background: #e67e22;
}
.hero-btn.primary:hover { background: #d35400; }
.hero-btn.secondary {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,.7);
}
.hero-btn.secondary:hover {
  background: rgba(255,255,255,.15);
  border-color: #fff;
  color: #fff;
  transform: translateY(-2px);
}
.hero-phone {
  font-size: 14px;
  color: rgba(255,255,255,.75);
  margin: 0;
}
.hero-tax {
  margin-top: 12px;
  font-size: 13px;
  color: rgba(255,255,255,.6);
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.15);
  border-radius: 4px;
  padding: 6px 14px;
  display: inline-block;
}

/* Hero 核心能力标签 */
.hero-tags {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.hero-tags span {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(230,126,34,.2);
  border: 1px solid rgba(230,126,34,.5);
  border-radius: 20px;
  font-size: 13px;
  color: #f0b87a;
  font-weight: 600;
  letter-spacing: 1px;
}


/* ===== 核心能力（结构/样机/交付）===== */
.capability-section {
  background: #0d2137;
  padding: 50px 0;
}
.capability-grid {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
}
.capability-item {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 12px;
  padding: 36px 28px;
  text-align: center;
  flex: 1;
  min-width: 200px;
  max-width: 300px;
  position: relative;
  transition: border-color .3s, transform .3s;
}
.capability-item:hover {
  border-color: #e67e22;
  transform: translateY(-4px);
}
.capability-icon {
  font-size: 36px;
  margin-bottom: 12px;
}
.capability-num {
  font-size: 12px;
  font-weight: 700;
  color: #e67e22;
  letter-spacing: 2px;
  margin-bottom: 10px;
}
.capability-item h3 {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
}
.capability-item p {
  font-size: 13px;
  color: #8faec5;
  line-height: 1.7;
  margin: 0;
}
.capability-arrow {
  font-size: 28px;
  color: #e67e22;
  flex-shrink: 0;
  font-weight: 700;
}
@media (max-width: 768px) {
  .capability-grid { flex-direction: column; gap: 16px; }
  .capability-arrow { transform: rotate(90deg); }
  .capability-item { max-width: 100%; }
}

/* ===== Section Titles ===== */
.section { padding: 70px 0; }
.section-title {
  text-align: center;
  margin-bottom: 50px;
}
.section-title h2 {
  font-size: 32px;
  font-weight: 700;
  color: #0d2137;
  margin-bottom: 10px;
}
.section-title h2 span { color: #e67e22; }
.section-title p {
  font-size: 16px;
  color: #7f8c8d;
  max-width: 600px;
  margin: 0 auto;
}
.section-title .line {
  display: inline-block;
  width: 60px;
  height: 3px;
  background: #e67e22;
  border-radius: 2px;
  margin-top: 14px;
}

/* ===== 特色项目：自动编织机 ===== */
.bianzhi-section { background: #fff; }
.bianzhi-showcase {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 40px;
  align-items: center;
}
.bianzhi-img-wrap {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}
.bianzhi-info { padding: 10px 0; }
.bianzhi-badge {
  display: inline-block;
  background: linear-gradient(135deg, #e67e22, #d35400);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 16px;
  letter-spacing: 1px;
}
.bianzhi-info h3 {
  font-size: 28px;
  color: #0d2137;
  margin: 0 0 14px;
  font-weight: 700;
}
.bianzhi-desc {
  font-size: 15px;
  color: #5a6a7a;
  line-height: 1.8;
  margin-bottom: 24px;
}
.bianzhi-caps {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.bianzhi-caps span {
  display: inline-block;
  background: #f0f2f5;
  color: #0d2137;
  font-size: 13px;
  font-weight: 600;
  padding: 7px 18px;
  border-radius: 6px;
  border: 1px solid #d0d7de;
  letter-spacing: 0.5px;
}

@media (max-width: 768px) {
  .bianzhi-showcase {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .bianzhi-info h3 { font-size: 22px; }
  .bianzhi-caps { gap: 8px; }
  .bianzhi-caps span { font-size: 12px; padding: 6px 12px; }
}

/* ===== Services (双核心) ===== */
.services { background: #fff; }
.service-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}
.service-card {
  background: #f7f9fb;
  border-radius: 12px;
  padding: 40px 36px;
  border: 1px solid #e4e9ef;
  transition: transform .3s, box-shadow .3s, border-color .3s;
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: #1a6fb5;
  transition: width .3s;
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 36px rgba(13,33,55,.1);
  border-color: #1a6fb5;
}
.service-card:hover::before { width: 6px; }
.service-card.accent::before { background: #e67e22; }
.service-card.accent:hover { border-color: #e67e22; }
.service-card .icon {
  width: 64px;
  height: 64px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin-bottom: 20px;
  color: #fff;
}
.service-card .icon.blue { background: linear-gradient(135deg, #1a6fb5, #2e86c1); }
.service-card .icon.orange { background: linear-gradient(135deg, #e67e22, #f39c12); }
.service-card h3 {
  font-size: 24px;
  font-weight: 700;
  color: #0d2137;
  margin-bottom: 14px;
}
.service-card p {
  font-size: 15px;
  color: #5d6d7e;
  line-height: 1.8;
  margin-bottom: 20px;
}
.service-card ul {
  list-style: none;
  margin-bottom: 24px;
}
.service-card ul li {
  padding: 6px 0;
  font-size: 14px;
  color: #34495e;
  padding-left: 20px;
  position: relative;
}
.service-card ul li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: #1a6fb5;
  font-weight: 700;
}
.service-card.accent ul li::before { color: #e67e22; }
.service-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 15px;
  font-weight: 600;
  transition: gap .2s;
}
.service-link:hover { gap: 10px; }

/* ===== Featured Cases ===== */
.cases-section { background: #f0f2f5; }
.case-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}
.case-card {
  background: #fff;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid #e4e9ef;
  transition: transform .3s, box-shadow .3s;
}
.case-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0,0,0,.08);
}
.case-card img { width: 100%; height: 220px; object-fit: cover; }
.case-card .info {
  padding: 18px 20px;
}
.case-card .tag {
  display: inline-block;
  padding: 3px 10px;
  font-size: 12px;
  font-weight: 600;
  border-radius: 3px;
  margin-bottom: 8px;
}
.case-card .tag.structure { background: #e8f4fd; color: #1a6fb5; }
.case-card .tag.appearance { background: #fdf2e4; color: #e67e22; }
.case-card h4 {
  font-size: 16px;
  font-weight: 600;
  color: #0d2137;
  margin-bottom: 6px;
}
.case-card p {
  font-size: 13px;
  color: #7f8c8d;
  line-height: 1.6;
}

/* ===== Process ===== */
.process-section { background: #fff; }
.process-steps {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.step {
  flex: 1;
  min-width: 130px;
  text-align: center;
  position: relative;
}
.step-num {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, #1a6fb5, #2e86c1);
  color: #fff;
  font-size: 22px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 14px;
  box-shadow: 0 4px 12px rgba(26,111,181,.3);
}
.step p { font-size: 14px; color: #34495e; line-height: 1.6; font-weight: 500; }
.step-arrow {
  position: absolute;
  right: -18px;
  top: 20px;
  color: #bdc3c7;
  font-size: 24px;
}

/* ===== About Preview ===== */
.about-preview { background: #0d2137; color: #fff; }
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}
/* 产教融合横幅 */
.edu-banner {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, #e67e22 0%, #d35400 100%);
  border-radius: 8px;
  padding: 18px 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  box-shadow: 0 4px 16px rgba(230,126,34,.35);
}
.edu-banner-icon { font-size: 24px; }
.edu-banner-text { font-size: 18px; font-weight: 700; color: #fff; letter-spacing: 2px; }
.edu-banner-link { color: #fff; font-size: 14px; font-weight: 600; border: 1px solid rgba(255,255,255,.6); border-radius: 4px; padding: 4px 14px; transition: background .25s; }
.edu-banner-link:hover { background: rgba(255,255,255,.2); color: #fff; }
.about-preview h2 { font-size: 28px; font-weight: 700; margin-bottom: 16px; }
.about-preview h2 span { color: #e67e22; }
.about-preview p { color: #a8c4d8; font-size: 15px; line-height: 1.9; margin-bottom: 12px; }
.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 30px;
}
.stat-item { text-align: center; }
.stat-num {
  font-size: 42px;
  font-weight: 800;
  color: #e67e22;
  line-height: 1;
  margin-bottom: 6px;
}
.stat-label { font-size: 14px; color: #8faec5; }

/* ===== Partners ===== */
.partners-section { background: #fff; }
.partner-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 20px;
  align-items: center;
}
.partner-item {
  background: #f7f9fb;
  border: 1px solid #e4e9ef;
  border-radius: 8px;
  padding: 20px;
  text-align: center;
  transition: border-color .25s;
}
.partner-item:hover { border-color: #1a6fb5; }
.partner-item img { max-width: 120px; margin: 0 auto; }

/* ===== 策划方案摘要（始终可见，供搜索引擎索引）===== */
.planning-summary {
  margin: 14px 0 10px;
  padding: 12px 16px;
  background: #f0f4f8;
  border-left: 3px solid #1a6fb5;
  border-radius: 0 8px 8px 0;
  font-size: 13px;
  line-height: 1.9;
  color: #2c3e50;
}
.planning-summary p {
  margin: 0;
}

/* ===== Footer ===== */
.footer {
  background: #091520;
  color: #7eb8da;
  padding: 50px 0 24px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 30px;
}
.footer h3 {
  font-size: 18px;
  color: #fff;
  margin-bottom: 16px;
  font-weight: 600;
}
.footer p { font-size: 14px; line-height: 1.8; margin-bottom: 4px; }
.footer a { color: #7eb8da; }
.footer a:hover { color: #e67e22; }
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 8px; }
.footer-links a { font-size: 14px; }
.footer-bottom {
  border-top: 1px solid #1a3a54;
  padding-top: 20px;
  text-align: center;
  font-size: 13px;
  color: #4a6d85;
}
/* 不蒜子页面浏览计数器 */
.page-view-count {
  color: #6a8da5;
  font-size: 12px;
}
.page-view-count #busuanzi_value_page_pv {
  color: #e67e22;
  font-weight: 700;
}
.footer-wechat {
  text-align: center;
}
.footer-wechat img {
  border-radius: 8px;
  margin: 0 auto 10px;
  border: 2px solid #1a3a54;
  width: 120px;
  height: 120px;
}
.footer-wechat p {
  font-size: 13px;
  color: #8faec5;
  margin-top: 6px;
}

/* ===== Page Banner ===== */
.page-banner {
  background: linear-gradient(135deg, #0d2137 0%, #1a3a5c 50%, #2a5a8a 100%);
  color: #fff;
  padding: 60px 0;
  text-align: center;
}
.page-banner h1 { font-size: 36px; font-weight: 700; margin-bottom: 12px; color: #fff; }
.page-banner p { font-size: 16px; color: #a8c4d8; max-width: 600px; margin: 0 auto; }

/* ===== Page Content (子页面通用) ===== */
.page-hero {
  background: linear-gradient(135deg, #0d2137 0%, #1a4a6e 100%);
  color: #fff;
  padding: 60px 0;
  text-align: center;
}
.page-hero h1 { font-size: 36px; font-weight: 700; margin-bottom: 10px; }
.page-hero p { font-size: 16px; color: #a8c4d8; }

.breadcrumb {
  padding: 14px 0;
  font-size: 14px;
  color: #7f8c8d;
  background: #fff;
  border-bottom: 1px solid #e4e9ef;
}
.breadcrumb a { color: #1a6fb5; }
.breadcrumb a:hover { color: #e67e22; }

.page-body { padding: 50px 0; }
.content-full {
  background: #fff;
  border-radius: 10px;
  padding: 40px;
  box-shadow: 0 2px 12px rgba(0,0,0,.05);
}
/* 分类区块间距（appearance-design / structure-design 全宽布局） */
.page-body > .container > div[data-category] {
  margin-bottom: 48px;
}
.page-body > .container > div[data-category] h2 {
  font-size: 22px;
  color: #0d2137;
  margin-bottom: 10px;
  padding-bottom: 10px;
  border-bottom: 2px solid #e67e22;
  display: inline-block;
}
.content-full h2 {
  font-size: 24px;
  font-weight: 700;
  color: #0d2137;
  margin: 32px 0 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid #e67e22;
}
.content-full h2:first-child { margin-top: 0; }
.content-full p { margin-bottom: 14px; line-height: 1.9; color: #34495e; }

/* Service detail page layout */
.service-detail-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 30px;
}
.sidebar {
  background: #fff;
  border-radius: 10px;
  padding: 24px;
  box-shadow: 0 2px 12px rgba(0,0,0,.05);
  align-self: start;
  position: sticky;
  top: 80px;
}
.sidebar h3 {
  font-size: 18px;
  font-weight: 700;
  color: #0d2137;
  border-bottom: 2px solid #e67e22;
  padding-bottom: 12px;
  margin-bottom: 16px;
}
.sidebar ul { list-style: none; }
.sidebar li { margin-bottom: 4px; }
.sidebar a {
  display: block;
  padding: 10px 14px;
  font-size: 14px;
  color: #34495e;
  border-radius: 6px;
  transition: background .2s, color .2s, padding-left .2s;
}
.sidebar a:hover,
.sidebar a.active {
  background: #0d2137;
  color: #fff;
  padding-left: 20px;
}

/* Cases filter */
.case-filter {
  display: flex;
  gap: 10px;
  margin-bottom: 30px;
  flex-wrap: wrap;
}
.case-filter button {
  padding: 10px 24px;
  border: 2px solid #e4e9ef;
  border-radius: 6px;
  background: #fff;
  color: #34495e;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: all .25s;
}
.case-filter button:hover { border-color: #1a6fb5; color: #1a6fb5; }
.case-filter button.active {
  background: #0d2137;
  border-color: #0d2137;
  color: #fff;
}

/* Contact page */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}
.contact-card {
  background: #f7f9fb;
  border-radius: 10px;
  padding: 32px;
  border: 1px solid #e4e9ef;
}
.contact-card h2 {
  font-size: 22px;
  font-weight: 700;
  color: #0d2137;
  margin-bottom: 20px;
}
.contact-card .item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  margin-bottom: 18px;
}
.contact-card .item .icon {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background: linear-gradient(135deg, #1a6fb5, #2e86c1);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}
.contact-card .item .text { font-size: 15px; color: #34495e; line-height: 1.7; }
.contact-card .item .text strong { display: block; color: #0d2137; margin-bottom: 2px; }

/* About page */
.timeline { position: relative; padding-left: 30px; }
.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, #1a6fb5, #e67e22);
  border-radius: 2px;
}
.timeline-item {
  position: relative;
  margin-bottom: 30px;
  padding-left: 24px;
}
.timeline-item::before {
  content: '';
  position: absolute;
  left: -35px;
  top: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #1a6fb5;
  border: 3px solid #fff;
  box-shadow: 0 0 0 2px #1a6fb5;
}
.timeline-item .year {
  font-size: 14px;
  font-weight: 700;
  color: #e67e22;
  margin-bottom: 4px;
}
.timeline-item p { font-size: 15px; color: #34495e; line-height: 1.7; }

/* ===== Design Planning Preview (Homepage) ===== */
.planning-preview-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.planning-preview-card {
  background: #fff;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0,0,0,.06);
  text-decoration: none;
  transition: transform .3s, box-shadow .3s;
  border: 1px solid #e4e9ef;
}
.planning-preview-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0,0,0,.12);
}
.planning-preview-card img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  display: block;
}
.preview-info { padding: 14px 16px; }
.preview-tag {
  display: inline-block;
  background: linear-gradient(135deg, #1a6fb5, #2e86c1);
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: 12px;
  margin-bottom: 6px;
}
.preview-info h4 {
  font-size: 15px;
  font-weight: 700;
  color: #0d2137;
  margin-bottom: 4px;
}
.preview-info p {
  font-size: 12px;
  color: #7f8c8d;
  line-height: 1.4;
}
@media (max-width: 1024px) {
  .planning-preview-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 768px) {
  .planning-preview-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ===== Design Planning Page ===== */
.planning-card {
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0,0,0,.08);
  margin-bottom: 40px;
  border: 1px solid #e4e9ef;
  transition: box-shadow .3s;
}
.planning-card:hover { box-shadow: 0 8px 32px rgba(0,0,0,.12); }
.planning-card-inner {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 0;
}
.planning-img {
  overflow: hidden;
  background: #f0f2f5;
  min-height: 300px;
}
.planning-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .4s;
}
.planning-card:hover .planning-img img { transform: scale(1.03); }
.planning-img-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  text-align: center;
  font-size: 22px;
  font-weight: 700;
  line-height: 1.4;
}
.planning-img-placeholder small { font-size: 14px; font-weight: 400; opacity: .7; }
.planning-content {
  padding: 32px 36px;
}
.planning-tag {
  display: inline-block;
  background: linear-gradient(135deg, #1a6fb5, #2e86c1);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 12px;
}
.planning-content h3 {
  font-size: 24px;
  font-weight: 700;
  color: #0d2137;
  margin-bottom: 8px;
}
.planning-subtitle {
  font-size: 15px;
  color: #5a6a7a;
  line-height: 1.6;
  margin-bottom: 20px;
}
.planning-highlights {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 20px;
}
.highlight-item {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 14px;
  line-height: 1.6;
  color: #34495e;
}
.highlight-item strong {
  flex-shrink: 0;
  color: #1a6fb5;
  min-width: 80px;
}
.planning-meta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.meta-item {
  font-size: 13px;
  color: #7f8c8d;
  background: #f0f4f8;
  padding: 4px 12px;
  border-radius: 4px;
}
.btn-expand {
  background: none;
  border: 2px solid #1a6fb5;
  color: #1a6fb5;
  padding: 10px 24px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all .25s;
}
.btn-expand:hover {
  background: #1a6fb5;
  color: #fff;
}
.planning-detail {
  display: none;
  border-top: 1px solid #e4e9ef;
  padding: 32px 36px;
  background: #fafbfc;
}
.detail-section { margin-bottom: 24px; }
.detail-section:last-child { margin-bottom: 0; }
.detail-section h4 {
  font-size: 17px;
  font-weight: 700;
  color: #0d2137;
  margin-bottom: 12px;
  padding-left: 12px;
  border-left: 3px solid #e67e22;
}
.detail-section p {
  font-size: 15px;
  line-height: 1.8;
  color: #34495e;
  margin-bottom: 10px;
}
.detail-section ul {
  list-style: none;
  padding-left: 0;
}
.detail-section ul li {
  padding: 6px 0 6px 20px;
  font-size: 14px;
  line-height: 1.7;
  color: #34495e;
  position: relative;
}
.detail-section ul li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: #e67e22;
  font-weight: 700;
}
.detail-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  margin: 12px 0;
}
.detail-table th {
  background: #0d2137;
  color: #fff;
  padding: 10px 14px;
  text-align: left;
  font-weight: 600;
}
.detail-table td {
  padding: 10px 14px;
  border-bottom: 1px solid #e4e9ef;
  color: #34495e;
}
.detail-table tr:hover td { background: #f0f4f8; }

/* CTA Section */
.cta-section {
  background: linear-gradient(135deg, #0d2137, #1a4a6e);
  color: #fff;
  text-align: center;
}
.cta-section h2 { font-size: 28px; font-weight: 700; margin-bottom: 12px; }
.cta-section p { font-size: 16px; color: #a8c4d8; margin-bottom: 24px; }
.cta-section .btn {
  background: #e67e22;
  color: #fff;
  padding: 14px 40px;
  border-radius: 6px;
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  display: inline-block;
  transition: background .25s, transform .25s;
}
.cta-section .btn:hover { background: #d35400; transform: translateY(-2px); }

/* Planning card responsive */
@media (max-width: 900px) {
  .planning-card-inner { grid-template-columns: 1fr; }
  .planning-img { max-height: 240px; }
  .planning-content { padding: 24px; }
  .planning-detail { padding: 24px; }
}
@media (max-width: 480px) {
  .planning-content h3 { font-size: 20px; }
  .planning-meta { flex-direction: column; gap: 8px; }
  .detail-table { font-size: 12px; }
  .detail-table th, .detail-table td { padding: 8px 8px; }
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .service-grid { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .service-detail-grid { grid-template-columns: 1fr; }
  .sidebar { position: static; }
}
@media (max-width: 768px) {
  .menu-toggle { display: block; }
  .nav {
    display: none;
    flex-direction: column;
    width: 100%;
    background: #0d2137;
    padding: 10px 0;
    order: 10;
  }
  .nav.open { display: flex; position: relative; z-index: 100; }
  .nav a { padding: 14px 24px; border-radius: 0; }
  /* 移动端下拉菜单 */
  .nav-dropdown-menu {
    position: static;
    box-shadow: none;
    border-radius: 0;
    background: rgba(0,0,0,.2);
    display: none;
  }
  .nav-dropdown.open > .nav-dropdown-menu {
    display: block;
  }
  .nav-dropdown-menu a {
    padding: 12px 24px 12px 40px;
    font-size: 14px;
  }
  .hero-content h1 { font-size: 28px; }
  .hero-content p { font-size: 15px; }
  .section { padding: 50px 0; }
  .section-title h2 { font-size: 26px; }
  .case-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .case-card img { height: 160px; }
  .partner-grid { grid-template-columns: repeat(3, 1fr); }
  .process-steps { gap: 8px; }
  .step-arrow { display: none; }
  .about-stats { grid-template-columns: repeat(3, 1fr); gap: 16px; }
  .stat-num { font-size: 32px; }
  .hero-nav { padding: 12px 10px; font-size: 22px; }
  .page-hero h1 { font-size: 28px; }
  .content-full { padding: 24px; }
  .product-grid-4 { grid-template-columns: repeat(2, 1fr) !important; }
  /* 洛可可/产教融合：缩小间距和字号 */
  .lkk-flex, .edu-section .lkk-flex { gap: 24px; }
  .lkk-heading, .edu-heading { font-size: 26px; }
  .lkk-heading span, .edu-heading span { font-size: 20px; }
  .lkk-stat-num { font-size: 22px; }
  .edu-section .edu-heading { color: #fff; }
  .edu-section .lkk-subtitle { color: #e67e22; }
  .edu-section .lkk-desc { color: #8faec5; }
  /* 汉堡菜单关闭图标 */
  .menu-toggle.open::before { content: '✕'; }
  .menu-toggle.open { font-size: 0; }
  .menu-toggle.open::before { font-size: 26px; }
  /* FAQ移动端 */
  .faq-item { padding: 20px 20px; }
  .faq-item h3 { font-size: 15px; }
  .faq-item p { font-size: 13px; }
  /* 产教融合统计文字缩小 */
  .edu-section .lkk-stat-num { font-size: 20px; }
  .edu-section .lkk-stat-label { font-size: 11px; }
  /* section-btn 移动端适配 */
  .section-btn { padding: 12px 24px; font-size: 14px; }
}
@media (max-width: 480px) {
  .case-grid { grid-template-columns: 1fr; }
  .case-card img { height: 200px; }
  .case-card-featured { grid-row: span 1 !important; }
  .partner-grid { grid-template-columns: repeat(2, 1fr); }
  .hero { min-height: 360px; }
  .hero-content h1 { font-size: 24px; }
  .hero-btn { padding: 12px 24px; font-size: 14px; }
  .hero-btns { flex-direction: column; gap: 10px; }
  .hero-btns .hero-btn { text-align: center; }
  .step { min-width: 80px; }
  .about-stats { grid-template-columns: 1fr; }
  .product-grid-4 { grid-template-columns: 1fr !important; }
  /* 设计策划预览网格：480px以下变1列 */
  .planning-preview-grid { grid-template-columns: 1fr; }
  /* 洛可可/产教融合 480px适配 */
  .lkk-flex, .edu-section .lkk-flex { gap: 0; }
  .lkk-text-col, .lkk-img-col, .edu-cards-col { min-width: 100%; max-width: 100%; }
  .lkk-heading, .edu-heading { font-size: 24px; }
  .lkk-heading span, .edu-heading span { font-size: 18px; }
  .lkk-stats, .edu-section .lkk-stats { gap: 16px; }
  /* Hero导航按钮触摸目标加大 */
  .hero-nav { padding: 16px 12px; font-size: 24px; }
  /* FAQ 480px */
  .faq-item { padding: 16px; margin-bottom: 12px; }
  .section-btn { padding: 10px 20px; font-size: 13px; }
  /* 产教融合卡片区 480px */
  .edu-cards-col { gap: 12px; }
  .edu-feature-card { padding: 16px; }
  .edu-works-link { padding: 14px 18px; }
}

/* ===== 洛可可合作区块 ===== */
.lkk-section {
  background: linear-gradient(135deg,#0d1b2a,#1b2d4a,#0d1b2a);
  padding: 50px 0;
}
.lkk-flex {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
}
.lkk-text-col { flex: 1; min-width: 280px; max-width: 480px; }
.lkk-subtitle {
  font-size: 13px; color: #4fc3f7; letter-spacing: 3px; font-weight: 600;
  margin-bottom: 12px; text-transform: uppercase;
}
.lkk-heading {
  color: #fff; font-size: 32px; font-weight: 700;
  margin: 0 0 16px; line-height: 1.3;
}
.lkk-heading span { font-weight: 400; font-size: 24px; color: #4fc3f7; }
.lkk-desc {
  color: #8faec5; font-size: 15px; line-height: 1.7; margin-bottom: 20px;
}
.lkk-stats {
  display: flex; gap: 24px; flex-wrap: wrap;
}
.lkk-stat { text-align: center; }
.lkk-stat-num { font-size: 28px; font-weight: 700; color: #fff; }
.lkk-stat-label { font-size: 12px; color: #6b8fad; }
.lkk-img-col { flex: 1; min-width: 280px; max-width: 400px; }
.lkk-img-col img {
  width: 100%; border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0,0,0,.35);
}
.lkk-caption {
  color: #6b8fad; font-size: 12px; text-align: center;
  margin: 12px 0 0; line-height: 1.6;
}

/* ===== 产教融合区块 ===== */
.edu-section {
  background: linear-gradient(135deg,#1a2332,#2a3f5f,#1a2332);
  padding: 50px 0;
}
.edu-heading {
  color: #fff; font-size: 32px; font-weight: 700;
  margin: 0 0 16px; line-height: 1.3;
}
.edu-heading span { font-weight: 400; font-size: 24px; color: #e67e22; }
.edu-cards-col {
  flex: 1; min-width: 280px; max-width: 400px;
  display: flex; flex-direction: column; gap: 16px;
}
.edu-feature-card {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(230,126,34,.25);
  border-radius: 12px; padding: 20px;
}
.edu-feature-title {
  color: #e67e22; font-size: 14px; font-weight: 600; margin-bottom: 8px;
}
.edu-feature-desc {
  color: #b0c4d8; font-size: 13px; margin: 0; line-height: 1.6;
}
.edu-works-link {
  display: block;
  background: linear-gradient(135deg,#e67e22,#d35400);
  border-radius: 12px; padding: 18px 22px;
  text-decoration: none;
  transition: transform .2s, box-shadow .2s;
}
.edu-works-link:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(230,126,34,.4);
  color: #fff;
}
.edu-works-link h4 {
  color: #fff; font-size: 15px; font-weight: 700; margin-bottom: 6px;
}
.edu-works-link p {
  color: rgba(255,255,255,.85); font-size: 13px; margin: 0; line-height: 1.5;
}

/* ===== 首页深色标题 ===== */
.section-title--white h2 { color: #fff; }
.section-title--white p { color: #8faec5; }

/* ===== 医疗设备/钣金设计 产品卡片 ===== */
.product-card-link {
  background: rgba(255,255,255,.08);
  border-radius: 12px; padding: 20px;
  text-align: center; text-decoration: none;
  transition: background .3s;
  color: inherit;
}
.product-card-link:hover { background: rgba(255,255,255,.15); color: #fff; }
.product-card-link img {
  width: 100%; height: 140px; object-fit: contain;
  margin-bottom: 12px; border-radius: 8px;
}
.product-card-link h4 { color: #fff; font-size: 15px; margin: 0 0 4px; }
.product-card-link p { color: #8faec5; font-size: 13px; margin: 0; }

/* ===== 首页区块按钮 ===== */
.section-btn {
  display: inline-block; padding: 12px 36px;
  border-radius: 8px; font-weight: 600;
  text-decoration: none; font-size: 15px;
  transition: background .25s, transform .2s;
}
.section-btn--cyan { background: #4fc3f7; color: #0a1628; }
.section-btn--cyan:hover { background: #81d4fa; transform: translateY(-2px); color: #0a1628; }
.section-btn--orange { background: #e67e22; color: #fff; }
.section-btn--orange:hover { background: #d35400; transform: translateY(-2px); color: #fff; }

/* ===== 首页产品 4 列网格 ===== */
.product-grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

/* ===== 首页案例卡片角标 ===== */
.case-badge {
  position: absolute; top: 8px; right: 8px;
  background: #e67e22; color: #fff;
  font-size: 11px; font-weight: 700;
  padding: 3px 10px; border-radius: 4px; z-index: 2;
}

/* ===== FAQ 区块 ===== */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  background: #fff; border-radius: 10px;
  padding: 24px 28px; margin-bottom: 16px;
  box-shadow: 0 2px 12px rgba(0,0,0,.05);
}
.faq-item h3 { font-size: 16px; color: #0d2137; margin: 0 0 10px; }
.faq-item p { font-size: 14px; color: #5a6a7a; line-height: 1.8; margin: 0; }

/* ===== 遮罩层 ===== */
.nav-overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,.5);
  z-index: 99;
  -webkit-tap-highlight-color: transparent;
}
.nav-overlay.active { display: block; }