/* ============================================
   天津思佰德科技发展有限公司 - 全站共享样式
   浅色科技风设计系统（从最新静态站迁移）
   ============================================ */

/* ---------- CSS 变量 ---------- */
:root {
  --bg: #F5F8FC;
  --bg-2: #FFFFFF;
  --bg-3: #EEF2F7;
  --line: #E2E8F0;
  --line-2: #CBD5E1;
  --text: #1A2332;
  --text-2: #475569;
  --text-3: #94A3B8;
  --cyan: #2563EB;
  --blue: #0084FF;
  --green: #10B981;
  --amber: #FFB800;
  --red: #EF4444;
  --radius: 12px;
  --max-w: 1180px;
}

/* ---------- 基础重置 ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
  overflow-x: hidden;
}

a { color: var(--cyan); text-decoration: none; transition: opacity .2s; }
a:hover { opacity: .8; }

img { max-width: 100%; display: block; }

ul, ol { list-style: none; }

/* ---------- 通用容器 ---------- */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

section { padding: 80px 0; }

/* ---------- 标题与文字 ---------- */
h1, h2, h3, h4 { font-weight: 700; line-height: 1.3; color: var(--text); }
h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; margin-bottom: 16px; }
h3 { font-size: 1.25rem; margin-bottom: 10px; }

.section-subtitle {
  color: var(--text-2);
  font-size: 1.1rem;
  max-width: 640px;
  margin: 0 auto 48px;
  text-align: center;
}

.text-center { text-align: center; }
.mt-1 { margin-top: 8px; } .mt-2 { margin-top: 16px; } .mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; } .mb-2 { margin-bottom: 16px; } .mb-3 { margin-bottom: 24px; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all .25s;
  text-align: center;
}
.btn-primary {
  background: linear-gradient(135deg, #2563EB, #0084FF);
  color: #FFFFFF;
}
.btn-primary:hover { opacity: .9; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(37,99,235,.3); }
.btn-outline {
  background: transparent;
  color: #2563EB;
  border: 1px solid #2563EB;
}
.btn-outline:hover { background: rgba(37,99,235,.08); }
.btn-sm { padding: 8px 18px; font-size: .9rem; }

/* ---------- 顶部导航 ---------- */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.navbar-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 700;
  font-size: 1.15rem;
}
.logo-img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  object-fit: contain;
  display: block;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-links a {
  color: var(--text-2);
  font-size: .95rem;
  transition: color .2s;
}
.nav-links a:hover, .nav-links a.active { color: var(--cyan); }

/* WP 菜单输出的 li 适配 */
.nav-links > li { list-style: none; }
.nav-links > li > a { display: inline-block; }

/* 汉堡菜单按钮 */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
}
.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all .3s;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero 区域 ---------- */
.hero {
  position: relative;
  padding: 120px 0 100px;
  text-align: center;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 600px;
  background: radial-gradient(ellipse at center, rgba(37,99,235,.08) 0%, rgba(0,132,255,.06) 50%, transparent 70%);
  pointer-events: none;
}
.hero h1 {
  font-size: 2.8rem;
  margin-bottom: 20px;
  background: linear-gradient(135deg, #1A2332 30%, #2563EB);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero .hero-sub {
  color: var(--text-2);
  font-size: 1.15rem;
  max-width: 700px;
  margin: 0 auto 36px;
}
.hero-btns {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* 数据 chips */
.hero-chips {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 48px;
}
.chip {
  background: var(--bg-3);
  border: 1px solid var(--line-2);
  border-radius: 100px;
  padding: 8px 20px;
  font-size: .9rem;
  color: var(--text-2);
}
.chip strong { color: var(--cyan); font-weight: 700; }

/* ---------- 卡片通用 ---------- */
.card {
  background: linear-gradient(180deg, #FFFFFF, #F8FAFC);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: 0 1px 3px rgba(0,0,0,.06);
  transition: transform .25s, border-color .25s, box-shadow .25s;
}
.card:hover {
  transform: translateY(-4px);
  border-color: var(--cyan);
  box-shadow: 0 8px 24px rgba(37,99,235,.10);
}
.card-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: rgba(37,99,235,.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 16px;
}
.card h3 { color: var(--text); }
.card p { color: var(--text-2); font-size: .95rem; }

/* 高亮卡片（危化品专项） */
.card-highlight {
  border-color: var(--cyan);
  background: linear-gradient(180deg, rgba(37,99,235,.06), #FFFFFF);
  position: relative;
}
.card-badge {
  position: absolute;
  top: -12px;
  right: 20px;
  background: linear-gradient(135deg, #2563EB, #0084FF);
  color: #FFFFFF;
  font-size: .75rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 100px;
}

/* ---------- 网格布局 ---------- */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

/* ---------- 业务卡片 ---------- */
.biz-card { text-align: left; }
.biz-card .card-link {
  display: inline-block;
  margin-top: 16px;
  color: var(--cyan);
  font-size: .9rem;
  font-weight: 600;
}

/* ---------- 优势列表 ---------- */
.feature-item { text-align: center; padding: 20px; }
.feature-item .card-icon { margin: 0 auto 16px; }

/* ---------- 案例卡片 ---------- */
.case-card {
  overflow: hidden;
  cursor: pointer;
}
.case-card > a { display: block; color: inherit; }
.case-thumb {
  height: 140px;
  border-radius: 8px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: 800;
  color: rgba(255,255,255,.92);
  letter-spacing: 2px;
}
.case-tag {
  display: inline-block;
  font-size: .75rem;
  padding: 2px 10px;
  border-radius: 100px;
  background: rgba(37,99,235,.10);
  color: #1D4ED8;
  margin-bottom: 8px;
}
.case-tag.green { background: rgba(16,185,129,.12); color: #047857; }
.case-tag.amber { background: rgba(255,184,0,.15); color: #B45309; }

/* 渐变占位图配色（浅色饱和渐变，白字可读） */
.grad-1 { background: linear-gradient(135deg, #2563EB, #60A5FA); }
.grad-2 { background: linear-gradient(135deg, #0D9488, #5EEAD4); }
.grad-3 { background: linear-gradient(135deg, #7C3AED, #C4B5FD); }
.grad-4 { background: linear-gradient(135deg, #EA580C, #FDBA74); }
.grad-5 { background: linear-gradient(135deg, #1E40AF, #93C5FD); }
.grad-6 { background: linear-gradient(135deg, #0284C7, #7DD3FC); }

/* ---------- 客户 Logo 墙 ---------- */
.logo-wall {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px 40px;
  padding: 20px 0;
}
.logo-wall span {
  color: var(--text-3);
  font-size: 1.05rem;
  font-weight: 600;
  filter: grayscale(1);
  transition: all .25s;
}
.logo-wall span:hover {
  color: var(--cyan);
  filter: grayscale(0);
}

/* ---------- CTA 区 ---------- */
.cta-section {
  text-align: center;
  padding: 80px 0;
  background: linear-gradient(180deg, transparent, rgba(37,99,235,.05));
}
.cta-section h2 { margin-bottom: 12px; }
.cta-section p { color: var(--text-2); margin-bottom: 28px; }
.cta-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ---------- 时间线 / 步骤条 ---------- */
.timeline {
  position: relative;
  padding-left: 32px;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--line-2);
}
.timeline-item {
  position: relative;
  padding-bottom: 32px;
}
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before {
  content: '';
  position: absolute;
  left: -30px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(37,99,235,.18);
}
.timeline-item .year {
  color: var(--cyan);
  font-weight: 700;
  font-size: .95rem;
}
.timeline-item p { color: var(--text-2); font-size: .95rem; }

/* 步骤条（横向） */
.steps {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  justify-content: center;
}
.step {
  flex: 1;
  min-width: 140px;
  text-align: center;
  padding: 16px 12px;
  position: relative;
}
.step-num {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-3);
  border: 2px solid var(--cyan);
  color: var(--cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  margin: 0 auto 10px;
}
.step p { font-size: .88rem; color: var(--text-2); }

/* ---------- 表单 ---------- */
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  margin-bottom: 6px;
  font-size: .9rem;
  color: var(--text-2);
}
.form-group label .req { color: var(--red); }
.form-control {
  width: 100%;
  padding: 12px 14px;
  background: #FFFFFF;
  border: 1px solid var(--line-2);
  border-radius: 8px;
  color: var(--text);
  font-size: .95rem;
  font-family: inherit;
  transition: border-color .2s, box-shadow .2s;
}
.form-control:focus {
  outline: none;
  border-color: #2563EB;
  box-shadow: 0 0 0 3px rgba(37,99,235,.15);
}
textarea.form-control { resize: vertical; min-height: 100px; }
.form-error {
  color: var(--red);
  font-size: .82rem;
  margin-top: 4px;
  display: none;
}
.form-group.has-error .form-control { border-color: var(--red); }
.form-group.has-error .form-error { display: block; }

.form-success {
  display: none;
  background: rgba(16,185,129,.1);
  border: 1px solid var(--green);
  color: #047857;
  padding: 16px;
  border-radius: 8px;
  margin-top: 16px;
  text-align: center;
}
.form-success.show { display: block; }

/* ---------- 联系卡片 ---------- */
.contact-channel { text-align: center; }
.contact-channel .card-icon { margin: 0 auto 16px; }
.contact-channel .big-num {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text);
  margin: 8px 0;
  word-break: break-all;
}

/* 二维码占位 */
.qr-placeholder {
  width: 160px;
  height: 160px;
  margin: 0 auto 12px;
  background:
    repeating-linear-gradient(0deg, #fff, #fff 10px, #e2e8f0 10px, #e2e8f0 20px),
    repeating-linear-gradient(90deg, transparent, transparent 10px, rgba(0,0,0,.06) 10px, rgba(0,0,0,.06) 20px);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-3);
  font-size: .8rem;
  border: 1px solid var(--line-2);
}

/* ---------- 筛选标签 ---------- */
.filter-tabs {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 40px;
}
.filter-tab {
  padding: 8px 20px;
  border-radius: 100px;
  border: 1px solid var(--line-2);
  background: transparent;
  color: var(--text-2);
  cursor: pointer;
  font-size: .9rem;
  transition: all .2s;
}
.filter-tab:hover { border-color: var(--cyan); color: var(--cyan); }
.filter-tab.active {
  background: var(--cyan);
  color: #FFFFFF;
  border-color: var(--cyan);
  font-weight: 600;
}

/* ---------- 案例详情展开 ---------- */
.case-detail {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s ease;
}
.case-detail.open { max-height: 600px; }
.case-detail-inner {
  padding-top: 16px;
  margin-top: 16px;
  border-top: 1px dashed var(--line-2);
  color: var(--text-2);
  font-size: .92rem;
}
.case-detail-inner h4 { color: var(--cyan); font-size: .95rem; margin: 10px 0 4px; }

/* ---------- 文章卡片 ---------- */
.news-card { cursor: pointer; }
.news-date { color: var(--text-3); font-size: .82rem; margin-bottom: 8px; }
.news-cat {
  display: inline-block;
  font-size: .75rem;
  padding: 2px 10px;
  border-radius: 100px;
  background: rgba(37,99,235,.08);
  color: var(--cyan);
  margin-bottom: 10px;
}

/* ---------- 价格方案 ---------- */
.pricing-card { position: relative; }
.pricing-card.featured {
  border-color: var(--cyan);
  background: linear-gradient(180deg, rgba(37,99,235,.05), #FFFFFF);
}
.pricing-price {
  font-size: 2rem;
  font-weight: 800;
  color: var(--cyan);
  margin: 12px 0;
}
.pricing-price small { font-size: .9rem; color: var(--text-3); font-weight: 400; }
.pricing-card ul { margin: 16px 0; }
.pricing-card ul li {
  padding: 6px 0;
  color: var(--text-2);
  font-size: .92rem;
  border-bottom: 1px dashed var(--line);
}
.pricing-card ul li:last-child { border-bottom: none; }

/* ---------- 页脚（中等蓝，白字） ---------- */
.footer {
  background: #1E40AF;
  border-top: 1px solid rgba(255,255,255,.12);
  padding: 60px 0 24px;
  margin-top: 40px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer h4 { color: #FFFFFF; font-size: 1rem; margin-bottom: 16px; }
.footer p, .footer a { color: #BFDBFE; font-size: .9rem; line-height: 2; }
.footer a:hover { color: #93C5FD; opacity: 1; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.12);
  padding-top: 24px;
  text-align: center;
  color: #93C5FD;
  font-size: .85rem;
}

/* ---------- 页面头部（内页） ---------- */
.page-hero {
  padding: 80px 0 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  top: -40%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(ellipse at center, rgba(37,99,235,.07) 0%, transparent 70%);
  pointer-events: none;
}
.page-hero h1 { font-size: 2.2rem; margin-bottom: 12px; }
.page-hero p { color: var(--text-2); max-width: 600px; margin: 0 auto; }

/* ---------- 痛点-解法块 ---------- */
.pain-solution {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 16px;
  align-items: center;
  padding: 20px;
  background: var(--bg-2);
  border-radius: var(--radius);
  border: 1px solid var(--line-2);
  box-shadow: 0 1px 3px rgba(0,0,0,.05);
  margin-bottom: 16px;
}
.pain-solution .pain { color: var(--red); }
.pain-solution .arrow { color: var(--cyan); font-size: 1.3rem; font-weight: 700; }
.pain-solution .solution { color: var(--green); }
.pain-solution .label { font-size: .78rem; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 4px; opacity: .7; }

/* ---------- WP 正文内容排版 ---------- */
.entry-content p { margin-bottom: 16px; color: var(--text-2); }
.entry-content h2, .entry-content h3, .entry-content h4 { margin-top: 24px; }

/* ============================================
   响应式
   ============================================ */
@media (max-width: 968px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.6rem; }
  .hero h1 { font-size: 2.1rem; }
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .steps { flex-direction: column; align-items: center; }
  .step { min-width: auto; }
  .pain-solution { grid-template-columns: 1fr; text-align: center; }
  .pain-solution .arrow { transform: rotate(90deg); }
}

@media (max-width: 640px) {
  section { padding: 56px 0; }
  .hero { padding: 80px 0 60px; }
  .hero h1 { font-size: 1.7rem; }
  .hero .hero-sub { font-size: 1rem; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--bg-2);
    flex-direction: column;
    padding: 20px 24px;
    gap: 16px;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 12px 24px rgba(0,0,0,.08);
  }
  .nav-links.open { display: flex; }
  .nav-links a { font-size: 1rem; }
  .hamburger { display: flex; }
  .cta-btns .btn { width: 100%; }
  .hero-btns .btn { width: 100%; }
}

/* ============================================
   面包屑导航（SEO 语义化，浅色科技风）
   ============================================ */
.breadcrumb-wrap {
  background: var(--bg-2);
  border-bottom: 1px solid var(--line);
  padding: 10px 0;
}
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  font-size: .82rem;
  color: var(--text-3);
}
.breadcrumb a {
  color: var(--text-2);
  transition: color .2s;
}
.breadcrumb a:hover { color: var(--cyan); opacity: 1; }
.breadcrumb .sep {
  color: var(--line-2);
  font-size: .75rem;
}
.breadcrumb .current {
  color: var(--text-3);
}
@media (max-width: 640px) {
  .breadcrumb-wrap { padding: 8px 0; }
  .breadcrumb { font-size: .78rem; }
}

/* ============================================================
   v1.2.0 细节精修（逐页打磨）
   说明：以下规则在原设计系统之上做细节增强，未改动任何业务内容。
   ============================================================ */

/* ---------- 全局：选中态 / 焦点可访问性 ---------- */
::selection { background: rgba(37,99,235,.16); }
:focus-visible { outline: 2px solid #2563EB; outline-offset: 2px; }

/* 卡片内图片统一样式 */
.card img { border-radius: 8px; }

/* ---------- 区块标题装饰短线（统一视觉锚点） ---------- */
h2.text-center::after {
  content: '';
  display: block;
  width: 48px;
  height: 3px;
  border-radius: 2px;
  margin: 14px auto 0;
  background: linear-gradient(90deg, #2563EB, #0084FF);
}

/* ---------- 导航：链接下划线动效 ---------- */
.nav-links > li > a,
.nav-links a {
  position: relative;
}
.nav-links > li > a::after,
.nav-links > a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, #2563EB, #0084FF);
  transition: width .25s ease;
}
.nav-links > li > a:hover::after,
.nav-links > a:hover::after,
.nav-links a.active::after,
.nav-links > li.current-menu-item > a::after,
.nav-links > li.current_page_item > a::after {
  width: 100%;
}

/* ---------- Hero：渐变底 + 点阵装饰 + 数据芯片 hover ---------- */
.hero {
  background:
    radial-gradient(620px 420px at 88% 8%, rgba(0,132,255,.10), transparent 62%),
    radial-gradient(520px 380px at 10% 90%, rgba(37,99,235,.08), transparent 62%),
    linear-gradient(180deg, #FFFFFF, #F5F8FC);
}
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(37,99,235,.12) 1px, transparent 1px);
  background-size: 26px 26px;
  -webkit-mask-image: radial-gradient(ellipse at 50% 42%, #000 20%, transparent 78%);
  mask-image: radial-gradient(ellipse at 50% 42%, #000 20%, transparent 78%);
  pointer-events: none;
}
.chip {
  transition: transform .2s, border-color .2s, box-shadow .2s, background .2s;
}
.chip:hover {
  transform: translateY(-2px);
  border-color: var(--cyan);
  background: #FFFFFF;
  box-shadow: 0 4px 14px rgba(37,99,235,.12);
}

/* ---------- 内页 Hero：同款渐变底 ---------- */
.page-hero {
  background: linear-gradient(180deg, #FFFFFF, #F5F8FC);
}

/* ---------- 网格：三列尾项居中（7 项/4 项时最后一张居中） ---------- */
.grid-3 > :last-child:nth-child(3n+1) {
  grid-column: 2;
}

/* ---------- 卡片图标：按位置微调底色（增强层次） ---------- */
.grid-3 > .card:nth-child(3n+2) .card-icon { background: rgba(16,185,129,.10); }
.grid-3 > .card:nth-child(3n+3) .card-icon { background: rgba(245,158,11,.12); }

/* ---------- 案例占位图：叠加内阴影提升质感 ---------- */
.case-thumb {
  box-shadow: inset 0 -40px 60px rgba(0,0,0,.12);
}

/* ---------- 客户 Logo 墙：卡片式 ---------- */
.logo-wall { gap: 14px; }
.logo-wall span {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px 26px;
  box-shadow: 0 1px 3px rgba(0,0,0,.04);
  transition: all .25s;
}
.logo-wall span:hover {
  transform: translateY(-2px);
  border-color: var(--cyan);
  box-shadow: 0 6px 16px rgba(37,99,235,.12);
}

/* ---------- 步骤条：相邻连线 ---------- */
.step::after {
  content: '';
  position: absolute;
  top: 36px;
  left: calc(50% + 30px);
  width: calc(100% - 60px);
  height: 2px;
  background: linear-gradient(90deg, var(--line-2), transparent);
  pointer-events: none;
}
.step:last-child::after { display: none; }
@media (max-width: 968px) {
  .step::after { display: none; }
}

/* ---------- 痛点-解法块 hover ---------- */
.pain-solution {
  transition: transform .2s, box-shadow .2s, border-color .2s;
}
.pain-solution:hover {
  transform: translateY(-2px);
  border-color: var(--cyan);
  box-shadow: 0 6px 18px rgba(37,99,235,.10);
}

/* ---------- 时间线 hover ---------- */
.timeline-item p { transition: color .2s; }
.timeline-item:hover p { color: var(--text); }

/* ---------- 表单：select 自定义箭头 ---------- */
select.form-control {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'%3E%3Cpath d='M4 6l4 4 4-4' stroke='%2394A3B8' stroke-width='2' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
}

/* ---------- 筛选标签：active 增强 + 计数徽章 ---------- */
.filter-tab.active {
  box-shadow: 0 4px 12px rgba(37,99,235,.28);
}
.filter-tab .count {
  display: inline-block;
  min-width: 20px;
  padding: 0 6px;
  margin-left: 6px;
  border-radius: 100px;
  background: rgba(37,99,235,.10);
  color: var(--cyan);
  font-size: .72rem;
  font-weight: 600;
  line-height: 18px;
  text-align: center;
}
.filter-tab.active .count {
  background: rgba(255,255,255,.24);
  color: #FFFFFF;
}

/* ---------- 案例卡片：切换淡入 ---------- */
.case-card {
  animation: cardIn .35s ease both;
}
@keyframes cardIn {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: none; }
}

/* ---------- 联系二维码占位：hover 提示 ---------- */
.qr-placeholder { transition: box-shadow .2s, transform .2s; }
.qr-placeholder:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(37,99,235,.12);
}

/* ---------- 价格方案：按钮间距 ---------- */
.pricing-card .btn { margin-top: 8px; }

/* ---------- WP 正文排版细节 ---------- */
.entry-content img { border-radius: 10px; margin: 10px 0; }
.entry-content ul,
.entry-content ol {
  margin: 0 0 16px 0;
  padding-left: 22px;
  color: var(--text-2);
  font-size: .95rem;
}
.entry-content ul { list-style: disc; }
.entry-content ol { list-style: decimal; }
.entry-content blockquote {
  margin: 16px 0;
  padding: 12px 20px;
  border-left: 4px solid var(--cyan);
  background: var(--bg-3);
  border-radius: 0 8px 8px 0;
  color: var(--text-2);
}

/* ---------- 返回顶部按钮 ---------- */
.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 999;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  background: linear-gradient(135deg, #2563EB, #0084FF);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 18px rgba(37,99,235,.35);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity .3s ease, transform .3s ease, visibility .3s ease, box-shadow .3s ease;
}
.back-to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-to-top:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 26px rgba(37,99,235,.45);
}

/* ---------- 移动端菜单：展开过渡 ---------- */
@media (max-width: 640px) {
  .nav-links.open {
    animation: navIn .22s ease;
  }
}
@keyframes navIn {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: none; }
}

/* ============================================================
   v1.2.0 细节精修（逐页打磨）
   说明：以下规则在原设计系统之上做细节增强，未改动任何业务内容。
   ============================================================ */

/* ---------- 全局：选中态 / 焦点可访问性 ---------- */
::selection { background: rgba(37,99,235,.16); }
:focus-visible { outline: 2px solid #2563EB; outline-offset: 2px; }

/* 卡片内图片统一样式 */
.card img { border-radius: 8px; }

/* ---------- 区块标题装饰短线（统一视觉锚点） ---------- */
h2.text-center::after {
  content: '';
  display: block;
  width: 48px;
  height: 3px;
  border-radius: 2px;
  margin: 14px auto 0;
  background: linear-gradient(90deg, #2563EB, #0084FF);
}

/* ---------- 导航：链接下划线动效 ---------- */
.nav-links > li > a,
.nav-links > a {
  position: relative;
}
.nav-links > li > a::after,
.nav-links > a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, #2563EB, #0084FF);
  transition: width .25s ease;
}
.nav-links > li > a:hover::after,
.nav-links > a:hover::after,
.nav-links a.active::after,
.nav-links > li.current-menu-item > a::after,
.nav-links > li.current_page_item > a::after {
  width: 100%;
}

/* ---------- Hero：渐变底 + 点阵装饰 + 数据芯片 hover ---------- */
.hero {
  background:
    radial-gradient(620px 420px at 88% 8%, rgba(0,132,255,.10), transparent 62%),
    radial-gradient(520px 380px at 10% 90%, rgba(37,99,235,.08), transparent 62%),
    linear-gradient(180deg, #FFFFFF, #F5F8FC);
}
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(37,99,235,.12) 1px, transparent 1px);
  background-size: 26px 26px;
  -webkit-mask-image: radial-gradient(ellipse at 50% 42%, #000 20%, transparent 78%);
  mask-image: radial-gradient(ellipse at 50% 42%, #000 20%, transparent 78%);
  pointer-events: none;
}
.chip {
  transition: transform .2s, border-color .2s, box-shadow .2s, background .2s;
}
.chip:hover {
  transform: translateY(-2px);
  border-color: var(--cyan);
  background: #FFFFFF;
  box-shadow: 0 4px 14px rgba(37,99,235,.12);
}

/* ---------- 内页 Hero：同款渐变底 ---------- */
.page-hero {
  background: linear-gradient(180deg, #FFFFFF, #F5F8FC);
}

/* ---------- 网格：三列尾项居中（7 项/4 项时最后一张居中） ---------- */
.grid-3 > :last-child:nth-child(3n+1) {
  grid-column: 2;
}

/* ---------- 卡片图标：按位置微调底色（增强层次） ---------- */
.grid-3 > .card:nth-child(3n+2) .card-icon { background: rgba(16,185,129,.10); }
.grid-3 > .card:nth-child(3n+3) .card-icon { background: rgba(245,158,11,.12); }

/* ---------- 案例占位图：叠加内阴影提升质感 ---------- */
.case-thumb {
  box-shadow: inset 0 -40px 60px rgba(0,0,0,.12);
}

/* ---------- 客户 Logo 墙：卡片式 ---------- */
.logo-wall { gap: 14px; }
.logo-wall span {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px 26px;
  box-shadow: 0 1px 3px rgba(0,0,0,.04);
  transition: all .25s;
}
.logo-wall span:hover {
  transform: translateY(-2px);
  border-color: var(--cyan);
  box-shadow: 0 6px 16px rgba(37,99,235,.12);
}

/* ---------- 步骤条：相邻连线 ---------- */
.step::after {
  content: '';
  position: absolute;
  top: 36px;
  left: calc(50% + 30px);
  width: calc(100% - 60px);
  height: 2px;
  background: linear-gradient(90deg, var(--line-2), transparent);
  pointer-events: none;
}
.step:last-child::after { display: none; }
@media (max-width: 968px) {
  .step::after { display: none; }
}

/* ---------- 痛点-解法块 hover ---------- */
.pain-solution {
  transition: transform .2s, box-shadow .2s, border-color .2s;
}
.pain-solution:hover {
  transform: translateY(-2px);
  border-color: var(--cyan);
  box-shadow: 0 6px 18px rgba(37,99,235,.10);
}

/* ---------- 时间线 hover ---------- */
.timeline-item p { transition: color .2s; }
.timeline-item:hover p { color: var(--text); }

/* ---------- 表单：select 自定义箭头 ---------- */
select.form-control {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'%3E%3Cpath d='M4 6l4 4 4-4' stroke='%2394A3B8' stroke-width='2' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
}

/* ---------- 筛选标签：active 增强 + 计数徽章 ---------- */
.filter-tab.active {
  box-shadow: 0 4px 12px rgba(37,99,235,.28);
}
.filter-tab .count {
  display: inline-block;
  min-width: 20px;
  padding: 0 6px;
  margin-left: 6px;
  border-radius: 100px;
  background: rgba(37,99,235,.10);
  color: var(--cyan);
  font-size: .72rem;
  font-weight: 600;
  line-height: 18px;
  text-align: center;
}
.filter-tab.active .count {
  background: rgba(255,255,255,.24);
  color: #FFFFFF;
}

/* ---------- 案例卡片：切换淡入 ---------- */
.case-card {
  animation: cardIn .35s ease both;
}
@keyframes cardIn {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: none; }
}

/* ---------- 联系二维码占位：hover 提示 ---------- */
.qr-placeholder { transition: box-shadow .2s, transform .2s; }
.qr-placeholder:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(37,99,235,.12);
}

/* ---------- 价格方案：按钮间距 ---------- */
.pricing-card .btn { margin-top: 8px; }

/* ---------- WP 正文排版细节 ---------- */
.entry-content img { border-radius: 10px; margin: 10px 0; }
.entry-content ul,
.entry-content ol {
  margin: 0 0 16px 0;
  padding-left: 22px;
  color: var(--text-2);
  font-size: .95rem;
}
.entry-content ul { list-style: disc; }
.entry-content ol { list-style: decimal; }
.entry-content blockquote {
  margin: 16px 0;
  padding: 12px 20px;
  border-left: 4px solid var(--cyan);
  background: var(--bg-3);
  border-radius: 0 8px 8px 0;
  color: var(--text-2);
}

/* ---------- 返回顶部按钮 ---------- */
.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 999;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  background: linear-gradient(135deg, #2563EB, #0084FF);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 18px rgba(37,99,235,.35);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity .3s ease, transform .3s ease, visibility .3s ease, box-shadow .3s ease;
}
.back-to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-to-top:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 26px rgba(37,99,235,.45);
}

/* ---------- 移动端菜单：展开过渡 ---------- */
@media (max-width: 640px) {
  .nav-links.open {
    animation: navIn .22s ease;
  }
}
@keyframes navIn {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: none; }
}

/* ---------- 微信二维码实图（关于我们页，替换占位） ---------- */
.contact-channel .qr-img {
  width: 160px;
  height: 160px;
  object-fit: contain;
  margin: 0 auto 12px;
  border-radius: 8px;
  display: block;
  background: #fff;
  padding: 6px;
  box-sizing: border-box;
  border: 1px solid var(--line-2);
  transition: transform .2s, box-shadow .2s;
}
.contact-channel .qr-img:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(37,99,235,.12);
}