/* =============================================
   site-group.css - 站群页面专用样式
   对应页面：site_group_list、site_group_detail
   设计风格：简约 · 大气 · 现代
   ============================================= */

/* ===== Hero 区域 ===== */
.page-hero {
  position:relative;
  padding:160px 0 100px;
  color:#fff;
  overflow:hidden;
}
.page-hero .hero-inner,
.svc-hero-inner {
  position:relative;
  z-index:2;
  text-align:center;
}
.page-hero .hero-breadcrumb,
.svc-hero .hero-breadcrumb {
  font-size:13px;
  color:rgba(255,255,255,.5);
  margin-bottom:14px;
  letter-spacing:.5px;
}
.page-hero .hero-breadcrumb a,
.svc-hero .hero-breadcrumb a {
  color:rgba(255,255,255,.65);
  transition:color .25s;
}
.page-hero .hero-breadcrumb a:hover,
.svc-hero .hero-breadcrumb a:hover { color:#fff; }
.page-hero h1 {
  font-size:clamp(1.8rem,3.5vw,2.8rem);
  font-weight:800;
  margin-bottom:14px;
  line-height:1.2;
  letter-spacing:-.3px;
}
.page-hero h1 span {
  background:linear-gradient(135deg,#60a5fa,#a78bfa);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
}
.page-hero p {
  font-size:clamp(.95rem,1.3vw,1.08rem);
  color:rgba(255,255,255,.6);
  max-width:680px;
  margin:0 auto;
  line-height:1.7;
}

/* ===== 通用 Section ===== */
.section { padding:80px 0; }
.section-alt { background:#f8fafc; }
.section-header { text-align:center; margin-bottom:50px; }
.section-title {
  font-size:clamp(1.5rem,2.4vw,2rem);
  font-weight:800;
  color:#1e293b;
  margin-bottom:12px;
  line-height:1.25;
}
.section-subtitle {
  font-size:clamp(.9rem,1.1vw,1.05rem);
  color:#64748b;
  line-height:1.7;
  max-width:600px;
  margin:0 auto;
}

/* ===== 内容正文 ===== */
.content-body {
  font-size:1rem;
  line-height:2;
  color:#334155;
}
.content-body p { margin-bottom:18px; }
.content-body img {
  max-width:100%;
  border-radius:12px;
  margin:24px 0;
  box-shadow:0 4px 20px rgba(0,0,0,.08);
}
.content-body h2 { font-size:1.4rem; font-weight:700; margin:32px 0 14px; color:#1e293b; }
.content-body h3 { font-size:1.15rem; font-weight:700; margin:28px 0 12px; color:#1e293b; }
.content-body ul,
.content-body ol { padding-left:24px; margin-bottom:18px; }
.content-body li { margin-bottom:8px; }
.content-body a { color:#2563eb; text-decoration:underline; }

/* ===== 站群列表网格 ===== */
.sg-grid {
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(110px,1fr));
  gap:14px;
}
@media(max-width:768px) {
  .sg-grid { grid-template-columns:repeat(auto-fill,minmax(90px,1fr)); gap:10px; }
}
.sg-card {
  display:flex; align-items:center; justify-content:center;
  text-align:center;
  padding:16px 10px; min-height:82px;
  background:#fff;
  border:1px solid #eef2f6;
  border-radius:10px;
  font-size:.88rem;
  font-weight:500;
  line-height:1.35;
  color:#334155;
  text-decoration:none;
  transition:all .3s ease;
  word-break:break-all;
  box-shadow:0 1px 3px rgba(0,0,0,.04);
}
.sg-card:hover {
  border-color:#93c5fd;
  background:#f8faff;
  color:#1d4ed8;
  transform:translateY(-3px);
  box-shadow:0 8px 24px rgba(37,99,235,.1);
}

/* ===== 列表空状态 ===== */
.list-empty {
  text-align:center;
  padding:80px 20px;
  color:#94a3b8;
}
.list-empty .empty-icon { font-size:2.8rem; margin-bottom:14px; opacity:.4; }
.list-empty p { font-size:1rem; }

/* ===== 分页 ===== */
.pagination-bar {
  display:flex;
  justify-content:center;
  gap:8px;
  margin:50px 0 20px;
  flex-wrap:wrap;
}
.pagination-bar a,
.pagination-bar span {
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:40px; height:40px;
  padding:0 14px;
  border:1px solid #e2e8f0;
  border-radius:8px;
  font-size:.9rem;
  font-weight:500;
  color:#475569;
  text-decoration:none;
  background:#fff;
  transition:all .2s;
}
.pagination-bar a:hover {
  border-color:#93c5fd;
  color:#2563eb;
  background:#f0f7ff;
}
.pagination-bar a.active {
  background:#2563eb;
  color:#fff;
  border-color:#2563eb;
  font-weight:600;
}
.pagination-bar a.disabled { opacity:.3; pointer-events:none; }
.pagination-bar .page-dots { border:none; background:transparent; color:#94a3b8; letter-spacing:2px; }

/* ===== CTA 区域 ===== */
.cta-section {
  padding:80px 0;
  background:linear-gradient(135deg,#1e3a5f,#2563eb);
  text-align:center;
  color:#fff;
}
.cta-section h2 {
  font-size:clamp(1.3rem,2.2vw,1.8rem);
  font-weight:800;
  margin-bottom:10px;
}
.cta-section p {
  color:rgba(255,255,255,.7);
  margin-bottom:28px;
  font-size:1rem;
}
.cta-btn {
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:14px 38px;
  font-size:1rem;
  font-weight:600;
  color:#1e293b;
  background:#fff;
  border-radius:8px;
  text-decoration:none;
  transition:all .3s;
}
.cta-btn:hover {
  transform:translateY(-2px);
  box-shadow:0 8px 25px rgba(0,0,0,.18);
  color:#1e293b;
}

/* ===== 响应式 ===== */
@media(max-width:768px) {
  .page-hero { padding:110px 0 60px; }
  .section { padding:50px 0; }
  .section-header { margin-bottom:36px; }
  .cta-section { padding:56px 0; }
  .pagination-bar { margin:36px 0 10px; }
  .list-empty { padding:50px 20px; }
}

/* =============================================
   站群详情页 - 新板块样式 (site_group_detail)
   配色：深蓝 #1e3a5f · 科技蓝 #2563eb · 金色 #d4a853 · 浅灰 #f8fafc
   ============================================= */

/* ---- 板块公共头 ---- */
.sgd-section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 50px;
}
.sgd-section-header h2 {
  font-size: clamp(1.5rem,2.4vw,2rem);
  font-weight: 800;
  color: #1e293b;
  margin: 0 0 12px;
  line-height: 1.25;
  letter-spacing: -.3px;
}
.sgd-section-header h2::after {
  content: '';
  display: block;
  width: 50px;
  height: 3px;
  background: linear-gradient(90deg,#2563eb,#d4a853);
  border-radius: 2px;
  margin: 14px auto 0;
}
.sgd-section-header p {
  font-size: 1.05rem;
  color: #64748b;
  margin: 0;
  line-height: 1.7;
}
.sgd-empty {
  text-align: center;
  padding: 60px 20px;
  color: #94a3b8;
  font-size: 1rem;
}

/* ---- 模块一：企业网站定制服务（产品方案列表） ---- */
.sgd-prod-grid {
  display: grid;
  grid-template-columns: repeat(4,1fr);
  gap: 20px;
}
.sgd-prod-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid #eef2f6;
  border-radius: 14px;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: all .4s ease;
}
.sgd-prod-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 36px rgba(0,0,0,.08);
  border-color: #bfdbfe;
}
.sgd-prod-img {
  height: 200px;
  overflow: hidden;
  background: #f1f5f9;
}
.sgd-prod-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .5s;
}
.sgd-prod-card:hover .sgd-prod-img img { transform: scale(1.06); }
.sgd-prod-body {
  flex: 1;
  padding: 20px 18px 22px;
  display: flex;
  flex-direction: column;
}
.sgd-prod-body h3 {
  font-size: 1rem;
  font-weight: 700;
  color: #1e293b;
  margin: 0 0 8px;
  line-height: 1.35;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.sgd-prod-body p {
  font-size: .85rem;
  color: #64748b;
  line-height: 1.6;
  margin: 0 0 14px;
  flex: 1;
}
.sgd-prod-btn {
  font-size: .85rem;
  font-weight: 600;
  color: #2563eb;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap .3s;
}
.sgd-prod-card:hover .sgd-prod-btn { gap: 8px; }

/* ---- 模块二：常见问题 ---- */
.sgd-faq {
  padding: 90px 0;
  background: #fff;
}
.sgd-faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  max-width: 100%;
}
.sgd-faq-item {
  border: 1px solid #eef2f6;
  border-radius: 12px;
  overflow: hidden;
  transition: box-shadow .3s;
}
.sgd-faq-item:hover { box-shadow: 0 4px 16px rgba(0,0,0,.04); }
.sgd-faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 22px;
  background: #f8fafc;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  color: #1e293b;
  text-align: left;
  transition: background .3s;
}
.sgd-faq-q:hover { background: #f1f5f9; }
.sgd-faq-q span { flex: 1; padding-right: 12px; }
.sgd-faq-icon {
  width: 20px; height: 20px;
  flex-shrink: 0;
  transition: transform .3s;
  color: #94a3b8;
}
.sgd-faq-active .sgd-faq-icon { transform: rotate(180deg); }
.sgd-faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease;
  background: #fff;
}
.sgd-faq-a p {
  padding: 0 22px 18px;
  margin: 0;
  font-size: .92rem;
  color: #64748b;
  line-height: 1.7;
}

/* ---- 模块六：CTA ---- */
.sgd-cta {
  padding: 80px 0;
  background: linear-gradient(135deg,#1e3a5f 0%,#1a2a44 50%,#0f1825 100%);
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.sgd-cta::before {
  content: '';
  position: absolute;
  top: -40%; right: -10%;
  width: 500px; height: 500px;
  background: radial-gradient(circle,rgba(37,99,235,.08),transparent 70%);
  pointer-events: none;
}
.sgd-cta-inner { position: relative; z-index: 1; }
.sgd-cta h2 {
  font-size: clamp(1.3rem,2.2vw,1.8rem);
  font-weight: 800;
  margin: 0 0 12px;
}
.sgd-cta p {
  font-size: 1rem;
  color: rgba(255,255,255,.65);
  margin: 0 0 32px;
  line-height: 1.6;
}
.sgd-cta-btns {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.sgd-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 15px 36px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 8px;
  text-decoration: none;
  transition: all .3s;
  cursor: pointer;
  border: none;
  line-height: 1;
}
.sgd-cta-btn-primary {
  background: #fff;
  color: #1e293b;
}
.sgd-cta-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0,0,0,.2);
}
.sgd-cta-btn-outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,.3);
}
.sgd-cta-btn-outline:hover {
  background: rgba(255,255,255,.1);
  border-color: #fff;
  transform: translateY(-2px);
}

/* ---- 模块七：站群列表 ---- */
.sgd-sites {
  padding: 90px 0;
  background: #f8fafc;
}
.sgd-sites-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}
.sgd-sites-item {
  display: inline-block;
  padding: 10px 22px;
  font-size: .9rem;
  font-weight: 500;
  color: #475569;
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 50px;
  text-decoration: none;
  transition: all .3s ease;
}
.sgd-sites-item:hover {
  color: #2563eb;
  border-color: #93c5fd;
  background: #eff6ff;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(37,99,235,.08);
}

/* ---- 响应式 ---- */
@media(max-width:1024px) {
  .sgd-prod-grid { grid-template-columns: repeat(3,1fr); }
  .sgd-faq-grid { grid-template-columns: 1fr; }
}
@media(max-width:768px) {
  .sgd-faq,
  .sgd-cta,
  .sgd-sites { padding: 56px 0; }
  .sgd-section-header { margin-bottom: 36px; }
  .sgd-prod-grid { grid-template-columns: repeat(2,1fr); gap: 14px; }
  .sgd-prod-img { height: 160px; }
  .sgd-prod-body { padding: 14px 14px 16px; }
  .sgd-faq-q { padding: 14px 16px; font-size: .92rem; }
  .sgd-sites-grid { gap: 8px; }
  .sgd-sites-item { padding: 8px 16px; font-size: .82rem; }
}
@media(max-width:480px) {
  .sgd-prod-grid { grid-template-columns: 1fr; }
  .sgd-cta-btn { padding: 13px 28px; font-size: .92rem; }
}

/* =============================================
   站群详情页 - 老系统建站行业模块样式 (sg-*)
   配色：深蓝 #1e3a5f · 科技蓝 #2563eb · 渐变多色
   ============================================= */

/* ---- 轻量动画 ---- */
.fade-in { opacity:0; transform:translateY(20px); transition:all .6s ease; }
.fade-in.visible { opacity:1; transform:translateY(0); }

/* ---- 模块公共头 ---- */
.sg-header {
  text-align:center; max-width:700px; margin:0 auto 56px;
}
.sg-header h2 {
  font-size:clamp(1.5rem,2.4vw,2rem);
  font-weight:800; color:#1e293b; margin:0 0 12px; line-height:1.25;
}
.sg-header p {
  font-size:1.02rem; color:#64748b; margin:0; line-height:1.7;
}
.sg-header-light h2 { color:#fff; }
.sg-header-light p { color:rgba(255,255,255,.7); }

/* ===== 模块一：我们的能力 ===== */
.sg-capability {
  padding:90px 0;
  position:relative; overflow:hidden;
}
.sg-capability::before {
  content:''; position:absolute; inset:0;
  background:linear-gradient(135deg,#0f1825 0%,#1a2a44 50%,#0f1825 100%);
  z-index:-1;
}
.sg-capability::after {
  content:''; position:absolute; top:-50%; right:-20%;
  width:700px; height:700px;
  background:radial-gradient(circle,rgba(37,99,235,.08) 0%,transparent 70%);
  z-index:-1; pointer-events:none;
}
.sg-cap-grid {
  display:grid; grid-template-columns:repeat(3,1fr); gap:20px;
}
.sg-cap-card {
  background:#fff; border-radius:14px; padding:30px 24px;
  position:relative; overflow:hidden;
  transition:transform .4s cubic-bezier(.4,0,.2,1), box-shadow .4s ease;
  border-left:4px solid transparent;
}
.sg-cap-card:nth-child(1) { border-left-color:#3b82f6; }
.sg-cap-card:nth-child(2) { border-left-color:#8b5cf6; }
.sg-cap-card:nth-child(3) { border-left-color:#f59e0b; }
.sg-cap-card:nth-child(4) { border-left-color:#10b981; }
.sg-cap-card:nth-child(5) { border-left-color:#ef4444; }
.sg-cap-card:nth-child(6) { border-left-color:#06b6d4; }
.sg-cap-card:hover {
  transform:translateY(-8px);
  box-shadow:0 20px 50px rgba(0,0,0,.25);
}
.sg-cap-card::after {
  content:''; position:absolute; top:0; right:0;
  width:80px; height:80px;
  background:radial-gradient(circle at top right,rgba(37,99,235,.04),transparent 70%);
  border-radius:0 0 0 80px;
}
.sg-cap-icon {
  width:50px; height:50px; display:flex; align-items:center; justify-content:center;
  border-radius:12px; margin-bottom:18px; color:#fff;
}
.sg-cap-card:nth-child(1) .sg-cap-icon { background:linear-gradient(135deg,#3b82f6,#1d4ed8); }
.sg-cap-card:nth-child(2) .sg-cap-icon { background:linear-gradient(135deg,#8b5cf6,#6d28d9); }
.sg-cap-card:nth-child(3) .sg-cap-icon { background:linear-gradient(135deg,#f59e0b,#d97706); }
.sg-cap-card:nth-child(4) .sg-cap-icon { background:linear-gradient(135deg,#10b981,#059669); }
.sg-cap-card:nth-child(5) .sg-cap-icon { background:linear-gradient(135deg,#ef4444,#dc2626); }
.sg-cap-card:nth-child(6) .sg-cap-icon { background:linear-gradient(135deg,#06b6d4,#0891b2); }
.sg-cap-icon svg { width:24px; height:24px; }
.sg-cap-card h3 {
  font-size:1.05rem; font-weight:700; color:#1e293b;
  margin:0 0 10px; letter-spacing:.02em;
}
.sg-cap-card p {
  font-size:.88rem; color:#4d4d4d; line-height:1.7; margin:0;
}

/* ===== 模块二：企业网站定制服务 ===== */
.sg-custom {
  padding:90px 0; background:#f8fafc;
  position:relative;
}
.sg-custom::before {
  content:''; position:absolute; bottom:0; left:0; right:0;
  height:200px;
  background:linear-gradient(to top,rgba(37,99,235,.03),transparent);
  pointer-events:none;
}
.sg-custom-grid {
  display:grid; grid-template-columns:1fr 1fr; gap:60px; align-items:center;
}
.sg-custom-text { position:relative; }
.sg-custom-text h3 {
  font-size:clamp(1.2rem,1.8vw,1.5rem); font-weight:800;
  color:#1e293b; margin:0 0 18px; line-height:1.3;
}
.sg-custom-text p {
  font-size:.95rem; color:#4d4d4d; line-height:1.8; margin:0 0 24px;
}
.sg-custom-list {
  list-style:none; padding:0; margin:0;
  display:flex; flex-direction:column; gap:12px;
}
.sg-custom-list li {
  display:flex; align-items:flex-start; gap:12px;
  font-size:.92rem; color:#334155; font-weight:500; line-height:1.5;
}
.sg-custom-list li::before {
  content:''; flex-shrink:0; margin-top:4px;
  width:18px; height:18px;
  background:linear-gradient(135deg,#2563eb,#1d4ed8);
  border-radius:50%;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
  background-size:10px; background-position:center; background-repeat:no-repeat;
}
.sg-custom-image { position:relative; }
.sg-custom-img {
  width:100%; height:auto; border-radius:16px;
  box-shadow:0 20px 60px rgba(0,0,0,.1);
  display:block; position:relative; z-index:2;
}
.sg-custom-deco {
  position:absolute; width:80%; height:80%;
  bottom:-16px; right:-16px;
  background:linear-gradient(135deg,rgba(37,99,235,.08),rgba(37,99,235,.02));
  border-radius:16px; z-index:1;
}
.sg-custom-tag {
  display:inline-flex; align-items:center; gap:6px;
  padding:6px 16px; margin-bottom:20px;
  font-size:.78rem; font-weight:700; letter-spacing:1px;
  color:#2563eb; text-transform:uppercase;
  background:rgba(37,99,235,.08);
  border-radius:50px;
}

/* ===== 模块三：服务流程 ===== */
.sg-process {
  padding:90px 0;
  background:linear-gradient(135deg,#f0f4ff,#f8fafc);
  position:relative; overflow:hidden;
}
.sg-process::before {
  content:''; position:absolute; top:-30%; right:-10%;
  width:500px; height:500px;
  background:radial-gradient(circle,rgba(37,99,235,.04),transparent 70%);
  pointer-events:none;
}
.sg-process-row {
  display:flex; gap:0; position:relative;
  justify-content:center;
}
.sg-process-row::before {
  content:''; position:absolute; top:36px; left:8%; right:8%;
  height:3px;
  background:linear-gradient(90deg,#2563eb,rgba(37,99,235,.2),#2563eb);
  border-radius:2px; z-index:0;
}
.sg-process-step {
  flex:1; text-align:center; position:relative; z-index:1;
  padding:0 10px;
}
.sg-process-num {
  width:72px; height:72px; display:flex; align-items:center; justify-content:center;
  margin:0 auto 20px;
  font-size:1.3rem; font-weight:800; color:#fff;
  background:linear-gradient(135deg,#2563eb,#1d4ed8);
  border-radius:50%; position:relative;
  box-shadow:0 4px 20px rgba(37,99,235,.25);
  transition:transform .35s ease, box-shadow .35s ease;
}
.sg-process-step:hover .sg-process-num {
  transform:scale(1.12);
  box-shadow:0 8px 30px rgba(37,99,235,.35);
}
.sg-process-step:nth-child(2) .sg-process-num { background:linear-gradient(135deg,#3b82f6,#2563eb); }
.sg-process-step:nth-child(3) .sg-process-num { background:linear-gradient(135deg,#6366f1,#4f46e5); }
.sg-process-step:nth-child(4) .sg-process-num { background:linear-gradient(135deg,#8b5cf6,#7c3aed); }
.sg-process-step:nth-child(5) .sg-process-num { background:linear-gradient(135deg,#a855f7,#9333ea); }
.sg-process-step h4 {
  font-size:.95rem; font-weight:600; color:#1e293b;
  margin:0; line-height:1.3;
}

/* ===== 模块四：选择我们的理由 ===== */
.sg-reason {
  padding:90px 0; background:#fff;
  position:relative;
}
.sg-reason-grid {
  display:grid; grid-template-columns:repeat(4,1fr); gap:20px;
}
.sg-reason-card {
  border-radius:16px; padding:36px 24px 28px;
  text-align:center; position:relative; overflow:hidden;
  transition:transform .4s ease, box-shadow .4s ease;
}
.sg-reason-card::before {
  content:''; position:absolute; inset:0;
  opacity:.08; z-index:0; border-radius:16px;
}
.sg-reason-card:nth-child(1) { background:linear-gradient(135deg,#eff6ff,#dbeafe); }
.sg-reason-card:nth-child(1)::before { background:linear-gradient(135deg,#3b82f6,#1d4ed8); }
.sg-reason-card:nth-child(2) { background:linear-gradient(135deg,#f0fdf4,#dcfce7); }
.sg-reason-card:nth-child(2)::before { background:linear-gradient(135deg,#10b981,#059669); }
.sg-reason-card:nth-child(3) { background:linear-gradient(135deg,#fefce8,#fef9c3); }
.sg-reason-card:nth-child(3)::before { background:linear-gradient(135deg,#f59e0b,#d97706); }
.sg-reason-card:nth-child(4) { background:linear-gradient(135deg,#f5f3ff,#ede9fe); }
.sg-reason-card:nth-child(4)::before { background:linear-gradient(135deg,#8b5cf6,#6d28d9); }
.sg-reason-card:hover {
  transform:translateY(-6px);
  box-shadow:0 16px 48px rgba(0,0,0,.08);
}
.sg-reason-badge {
  display:inline-flex; align-items:center; justify-content:center;
  width:44px; height:44px; margin-bottom:16px;
  font-size:1.05rem; font-weight:800; color:#fff;
  border-radius:12px; position:relative; z-index:1;
}
.sg-reason-card:nth-child(1) .sg-reason-badge { background:linear-gradient(135deg,#3b82f6,#1d4ed8); }
.sg-reason-card:nth-child(2) .sg-reason-badge { background:linear-gradient(135deg,#10b981,#059669); }
.sg-reason-card:nth-child(3) .sg-reason-badge { background:linear-gradient(135deg,#f59e0b,#d97706); }
.sg-reason-card:nth-child(4) .sg-reason-badge { background:linear-gradient(135deg,#8b5cf6,#6d28d9); }
.sg-reason-card h4 {
  font-size:1.02rem; font-weight:700; color:#1e293b;
  margin:0 0 10px; position:relative; z-index:1;
}
.sg-reason-card p {
  font-size:.88rem; color:#4d4d4d; line-height:1.65;
  margin:0; position:relative; z-index:1;
}

/* ===== 模块五：网站建设行业知识 ===== */
.sg-knowledge {
  padding:90px 0;
  background:linear-gradient(135deg,#f8fafc 0%,#f1f5f9 100%);
  position:relative; overflow:hidden;
}
.sg-knowledge::before {
  content:''; position:absolute; bottom:-30%; left:-10%;
  width:500px; height:500px;
  background:radial-gradient(circle,rgba(37,99,235,.04),transparent 70%);
  pointer-events:none;
}
.sg-knowledge-grid {
  display:grid; grid-template-columns:repeat(3,1fr); gap:24px;
}
.sg-knowledge-card {
  display:flex; flex-direction:column;
  background:#fff; border-radius:16px; overflow:hidden;
  text-decoration:none; color:inherit;
  border:1px solid #e2e8f0;
  transition:transform .4s ease, box-shadow .4s ease, border-color .4s ease;
}
.sg-knowledge-card:hover {
  transform:translateY(-6px);
  box-shadow:0 16px 48px rgba(0,0,0,.08);
  border-color:#93c5fd;
}
.sg-knowledge-thumb {
  width:100%; height:200px; overflow:hidden; flex-shrink:0;
  background:#f1f5f9;
}
.sg-knowledge-thumb img {
  width:100%; height:100%; object-fit:cover;
  transition:transform .5s ease;
}
.sg-knowledge-card:hover .sg-knowledge-thumb img {
  transform:scale(1.08);
}
.sg-knowledge-body {
  flex:1; display:flex; flex-direction:column;
  padding:24px 22px 22px;
}
.sg-knowledge-date {
  display:block; font-size:.78rem; color:#94a3b8;
  margin-bottom:10px; line-height:1;
}
.sg-knowledge-body h3 {
  font-size:1rem; font-weight:700; color:#1e293b;
  margin:0 0 10px; line-height:1.4;
  display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical;
  overflow:hidden;
  transition:color .3s ease;
}
.sg-knowledge-card:hover .sg-knowledge-body h3 { color:#2563eb; }
.sg-knowledge-body p {
  font-size:.85rem; color:#64748b; line-height:1.6;
  margin:0 0 16px; flex:1;
}
.sg-knowledge-more {
  display:inline-flex; align-items:center; gap:4px;
  font-size:.82rem; font-weight:600; color:#2563eb;
  margin-top:auto;
  transition:gap .3s ease;
}
.sg-knowledge-card:hover .sg-knowledge-more { gap:8px; }
.sg-knowledge-empty {
  grid-column:1/-1; text-align:center; padding:60px 20px;
  color:#94a3b8; font-size:.95rem;
}

/* ---- 老系统模块响应式 ---- */
@media(max-width:1024px) {
  .sg-reason-grid { grid-template-columns:repeat(2,1fr); }
}
@media(max-width:992px) {
  .sg-custom-grid { grid-template-columns:1fr; gap:40px; }
  .sg-custom-image { order:-1; }
  .sg-custom-deco { display:none; }
}
@media(max-width:768px) {
  .sg-capability,.sg-custom,.sg-process,.sg-reason,.sg-knowledge { padding:50px 0; }
  .sg-cap-grid { grid-template-columns:1fr; gap:16px; }
  .sg-cap-card { padding:24px 20px; }
  .sg-process-row { flex-wrap:wrap; gap:10px; }
  .sg-process-row::before { display:none; }
  .sg-process-step { flex:1 1 calc(33.33% - 10px); padding:0; }
  .sg-process-num { width:56px; height:56px; font-size:1.1rem; margin-bottom:12px; }
  .sg-reason-grid { grid-template-columns:repeat(2,1fr); gap:14px; }
  .sg-reason-card { padding:28px 18px 22px; }
  .sg-header { margin-bottom:36px; }
}
@media(max-width:480px) {
  .sg-process-step { flex:1 1 calc(50% - 10px); }
  .sg-reason-grid { grid-template-columns:1fr; }
}
@media(max-width:992px) {
  .sg-knowledge-grid { grid-template-columns:repeat(2,1fr); }
}
@media(max-width:768px) {
  .sg-knowledge-grid { grid-template-columns:1fr; gap:16px; }
  .sg-knowledge-thumb { height:180px; }
  .sg-knowledge-body { padding:20px 18px 18px; }
}

/* =============================================
   AI 站群升级样式 - 布局多样化 + AI正文 + 关联文章
   ============================================= */

.sgd-ai-intro { background: #f8fafc; }
.sgd-intro-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.sgd-intro-card{padding:30px;border-radius:14px;background:#fff;border:1px solid #e2e8f0;box-shadow:0 4px 16px rgba(15,23,42,.05);transition:transform .25s ease,box-shadow .25s ease}
.sgd-intro-card:hover{transform:translateY(-4px);box-shadow:0 12px 28px rgba(15,23,42,.10)}
.sgd-intro-top{display:flex;align-items:flex-start;gap:14px;margin-bottom:14px}
.sgd-intro-num{font-size:15px;font-weight:700;color:#fff;background:#2563eb;padding:4px 10px;border-radius:6px;line-height:1.4}
.sgd-intro-title{margin:0;font-size:18px;line-height:1.5;font-weight:600;color:#1e3a5f}
.sgd-intro-text{margin:0;font-size:14px;line-height:1.9;color:#475569}
/* AI内容：卡片轮播，一次显示一张图文卡片 */
.sgd-ai-carousel { position: relative; margin: 0 auto; }
.sgd-ai-track { display: grid; overflow: hidden; border-radius: 18px; background: #fff; box-shadow: 0 10px 34px rgba(15,23,42,.08); }
.sgd-ai-slide { grid-area: 1 / 1; display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: center; padding: 36px; box-sizing: border-box; opacity: 0; pointer-events: none; transition: opacity .45s ease; }
.sgd-ai-slide.active { opacity: 1; pointer-events: auto; position: relative; z-index: 1; }
.sgd-ai-slide.no-img { grid-template-columns: 1fr; }
.sgd-ai-slide-icon {
  display: flex; align-items: center; justify-content: center;
  height: 300px; color: #2563eb;
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
  border-radius: 12px;
}
.sgd-ai-slide-icon svg { width: 130px; height: 130px; }
.sgd-ai-prev, .sgd-ai-next {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 2;
  width: 42px; height: 42px; border-radius: 50%;
  border: 1px solid #e2e8f0; background: #fff; color: #334155;
  font-size: 20px; line-height: 1; cursor: pointer;
  box-shadow: 0 4px 14px rgba(15,23,42,.10); transition: all .3s ease;
}
.sgd-ai-prev:hover, .sgd-ai-next:hover { background: #2563eb; color: #fff; border-color: #2563eb; }
.sgd-ai-prev { left: -56px; }
.sgd-ai-next { right: -56px; }
.sgd-ai-dots { display: flex; justify-content: center; gap: 8px; margin-top: 18px; }
.sgd-ai-dots button { width: 8px; height: 8px; padding: 0; border: none; border-radius: 50%; background: #cbd5e1; cursor: pointer; transition: all .3s ease; }
.sgd-ai-dots button.active { background: #2563eb; width: 22px; border-radius: 4px; }
.sgd-ai-text { line-height: 2; font-size: 16px; color: #475569; }
.sgd-ai-text p { margin-bottom: 16px; }
.sgd-ai-text p:last-child { margin-bottom: 0; }
.sgd-ai-text strong { color: #1e40af; font-weight: 700; }
.sgd-ai-text h2 { font-size: 1.3rem; color: #1e293b; margin: 28px 0 14px; padding-left: 14px; border-left: 4px solid #2563eb; }
.sgd-ai-text h3 { font-size: 1.12rem; color: #1e293b; margin: 24px 0 12px; }
.sgd-ai-text ul, .sgd-ai-text ol { padding-left: 26px; margin-bottom: 16px; }
.sgd-ai-text li { margin-bottom: 10px; }
.sgd-ai-text a { color: #2563eb; text-decoration: underline; }

/* intro_products：AI内容与推荐设备 垂直排列 */
.sgd-intro-products .sgd-ai-carousel { margin-bottom: 48px; }
.sgd-intro-prods { border-top: 1px dashed #e2e8f0; padding-top: 40px; }
.sgd-intro-prods .sgd-prod-grid { grid-template-columns: repeat(4, 1fr); }
.sgd-hero-D { background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 50%, #2563eb 100%) !important; }
.sgd-hero-D .svc-hero-inner { padding-top: 20px; }

/* ===== group banner 幻灯片 + 遮罩 ===== */
.sgd-hero { position: relative; }
.sgd-hero-slides { position: absolute; inset: 0; z-index: 0; }
.sgd-hero-slide {
  position: absolute; inset: 0; opacity: 0; visibility: hidden;
  background-size: cover; background-position: center;
  transition: opacity 1s ease, visibility 1s ease;
}
.sgd-hero-slide.active { opacity: 1; visibility: visible; z-index: 1; }
.sgd-hero-overlay {
  position: absolute; inset: 0; z-index: 2;
  background: linear-gradient(135deg, rgba(15,23,42,.82) 0%, rgba(30,58,95,.6) 50%, rgba(37,99,235,.45) 100%);
}
.sgd-hero .svc-hero-inner { position: relative; z-index: 3; }
.sgd-hero-E .svc-hero-inner { padding-top: 10px; }
.sgd-hero-F { background: linear-gradient(135deg, #14532d 0%, #166534 50%, #2563eb 100%) !important; }
.sgd-hero-G { background: linear-gradient(135deg, #7c2d12 0%, #b45309 50%, #2563eb 100%) !important; }
.sgd-hero-H { background: linear-gradient(135deg, #4c1d95 0%, #6d28d9 50%, #2563eb 100%) !important; }
.sgd-hero-H .svc-hero-inner { padding-top: 20px; }

@media(max-width:768px) {
  .sgd-intro-grid { grid-template-columns: 1fr; }
  .sgd-ai-carousel { max-width: 100%; }
  .sgd-ai-slide { grid-template-columns: 1fr; gap: 16px; padding: 20px; }
  .sgd-ai-slide-icon { height: 180px; }
  .sgd-ai-slide-icon svg { width: 90px; height: 90px; }
  .sgd-ai-prev { left: 8px; }
  .sgd-ai-next { right: 8px; }
  .sgd-intro-prods .sgd-prod-grid { grid-template-columns: 1fr 1fr; }
}


/* =============================================
   服务版图页面 (group.html) 专用样式
   配色：亮绿 #85ce03 · 工业灰 #4A5456 · 浅雾白 #F5F9F8 · 科技蓝 #2563eb
   ============================================= */
.svc-page { overflow: hidden; }

/* ---- Hero ---- */
.svc-hero {
  position: relative;
  padding: 180px 0 120px;
  background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 50%, #2563eb 100%);
  overflow: hidden; color: #fff;
}
.svc-hero-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 20% 30%, rgba(37,99,235,.25) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 70%, rgba(30,58,95,.15) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 0%, rgba(96,165,250,.06) 0%, transparent 40%);
  pointer-events: none;
}
.svc-hero-bg::after {
  content: ''; position: absolute; inset: 0; opacity: .04;
  background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='1'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.svc-hero-inner {
  position: relative; z-index: 2; text-align: center;
}
.svc-hero-inner h1 {
  font-size: clamp(1.8rem,3.5vw,2.8rem);
  font-weight: 800;
  margin-bottom: 14px;
  line-height: 1.2;
  letter-spacing: -.3px;
}
.svc-hero-inner h1 span {
  color: #2563eb;
}
.svc-hero-inner p {
  font-size: clamp(.95rem,1.3vw,1.08rem);
  color: rgba(255,255,255,.65);
  max-width: 640px;
  margin: 0 auto 28px;
  line-height: 1.7;
}
.svc-hero-actions {
  display: flex; justify-content: center; gap: 16px; flex-wrap: wrap;
}
.svc-hero-btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 34px; font-size: .95rem; font-weight: 600;
  border-radius: 50px; text-decoration: none;
  transition: all .3s ease; line-height: 1;
}
.svc-hero-btn svg { width: 18px; height: 18px; flex-shrink: 0; }
.svc-hero-btn-primary {
  background: #2563eb; color: #fff;
  box-shadow: 0 4px 20px rgba(37,99,235,.35);
}
.svc-hero-btn-primary:hover {
  background: #1d4ed8; color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(37,99,235,.45);
}

/* ---- Sections ---- */
.svc-section { padding: 90px 0; }
.svc-section-alt { background: #F5F9F8; }

.svc-header { text-align: center; margin-bottom: 56px; }
.svc-header h2 {
  font-size: clamp(1.5rem, 2.5vw, 2rem); font-weight: 800;
  color: #1e293b; margin: 0 0 10px; line-height: 1.2;
}
.svc-header p {
  font-size: 1.05rem; color: #64748b;
  margin: 0; line-height: 1.6;
}

/* ---- Service Card Grid ---- */
.svc-group-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
@media (max-width: 1024px) {
  .svc-group-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .svc-group-grid { grid-template-columns: 1fr; }
}

.svc-group-card {
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 16px;
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  transition: all .35s ease;
}
.svc-group-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 50px rgba(0,0,0,.08);
  border-color: #a3d5cb;
}
.svc-group-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}
.svc-group-icon {
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #e8f5d0, #c8e8a0);
  border-radius: 12px;
  color: #85ce03;
  flex-shrink: 0;
}
.svc-group-icon svg { width: 22px; height: 22px; }
.svc-group-card-header h3 {
  font-size: 1rem; font-weight: 700;
  color: #1e293b; margin: 0; line-height: 1.3;
}
.svc-group-features {
  list-style: none; padding: 0;
  margin: 0 0 24px;
  display: flex; flex-direction: column; gap: 8px;
  flex: 1;
}
.svc-group-features li {
  position: relative;
  padding-left: 20px;
  font-size: .88rem;
  color: #4A5456;
  line-height: 1.5;
}
.svc-group-features li::before {
  content: '';
  position: absolute; left: 0; top: 7px;
  width: 8px; height: 8px;
  background: #85ce03;
  border-radius: 50%;
  opacity: .2;
}
.svc-group-actions {
  display: flex; align-items: center;
  justify-content: space-between; gap: 12px;
  padding-top: 16px;
  border-top: 1px solid #eef2f0;
}
.svc-group-price-btn {
  font-size: 1.05rem; font-weight: 800;
  color: #2563eb; line-height: 1;
}
.svc-group-btn {
  display: inline-flex; align-items: center;
  padding: 8px 20px;
  font-size: .82rem; font-weight: 600;
  color: #85ce03;
  background: #e8f5d0;
  border-radius: 50px;
  text-decoration: none;
  transition: all .3s ease;
}
.svc-group-btn:hover {
  background: #85ce03;
  color: #fff;
}

/* ---- Cloud Grid (服务版图标签) ---- */
.sg-cloud-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}
.sg-cloud-item {
  display: inline-block;
  padding: 8px 18px;
  font-size: .85rem;
  font-weight: 500;
  color: #4A5456;
  background: #fff;
  border: 1px solid #dce6e4;
  border-radius: 50px;
  text-decoration: none;
  transition: all .3s ease;
}
.sg-cloud-item:hover {
  color: #85ce03;
  border-color: #a3d5cb;
  background: #e8f5d0;
  transform: translateY(-2px);
}
.sg-cloud-empty {
  color: #94a3b8;
  font-size: .9rem;
}
.sg-cloud-hidden { display: none; }
.sg-cloud-pager {
  text-align: center;
  margin-top: 32px;
}
.sg-cloud-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 30px;
  font-size: .9rem;
  font-weight: 600;
  color: #4A5456;
  background: #fff;
  border: 1px solid #dce6e4;
  border-radius: 50px;
  cursor: pointer;
  transition: all .3s ease;
  line-height: 1;
}
.sg-cloud-btn:hover {
  color: #85ce03;
  border-color: #a3d5cb;
  background: #e8f5d0;
  transform: translateY(-2px);
}
.sg-cloud-btn-icon {
  width: 16px; height: 16px;
  transition: transform .3s;
}

/* ---- 分页导航 ---- */
.sg-pager {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 6px;
  margin-top: 40px;
  flex-wrap: wrap;
}
.sg-pager-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 38px; height: 38px;
  padding: 0 14px;
  font-size: .85rem;
  font-weight: 500;
  color: #4A5456;
  background: #fff;
  border: 1px solid #dce6e4;
  border-radius: 8px;
  text-decoration: none;
  transition: all .25s ease;
  line-height: 1;
}
.sg-pager-btn:hover {
  color: #85ce03;
  border-color: #a3d5cb;
  background: #e8f5d0;
}
.sg-pager-active {
  color: #fff;
  background: #85ce03;
  border-color: #85ce03;
  font-weight: 700;
}
.sg-pager-active:hover {
  color: #fff;
  background: #76b902;
  border-color: #76b902;
}
.sg-pager-dots {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 30px;
  color: #94a3b8;
  font-size: .85rem;
  letter-spacing: 2px;
}

/* ---- 四大核心服务定价卡片 ---- */
.svc-pricing-section { background: #f5f7fb; }
.svc-pricing-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.svc-pricing-card {
  position: relative; background: #fff; border: 1px solid #e2e8f0; border-radius: 18px;
  padding: 36px 28px 32px; display: flex; flex-direction: column; transition: all .35s ease; overflow: hidden;
}
.svc-pricing-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: linear-gradient(90deg, #2563eb, #60a5fa);
  transform: scaleX(0); transform-origin: left; transition: transform .35s ease;
}
.svc-pricing-card:hover {
  transform: translateY(-8px); box-shadow: 0 16px 40px rgba(37,99,235,.12);
  border-color: rgba(37,99,235,.3);
}
.svc-pricing-card:hover::before { transform: scaleX(1); }
.svc-pricing-featured {
  border: 2px solid #2563eb; box-shadow: 0 8px 30px rgba(37,99,235,.1);
}
.svc-pricing-featured::before { transform: scaleX(1); }
.svc-pricing-badge {
  position: absolute; top: 14px; right: -32px;
  background: linear-gradient(135deg, #2563eb, #1d4ed8); color: #fff;
  font-size: .72rem; font-weight: 700; padding: 4px 36px;
  transform: rotate(45deg); letter-spacing: 1px;
}
.svc-pricing-top { margin-bottom: 22px; }
.svc-pricing-top h3 {
  font-size: 1.15rem; font-weight: 700; color: #0f172a;
  margin: 0 0 14px; line-height: 1.4;
}
.svc-pricing-price {
  display: flex; align-items: baseline; gap: 4px;
  color: #2563eb; font-size: .95rem; font-weight: 600;
}
.svc-pricing-price span {
  font-size: 2rem; font-weight: 800; color: #2563eb; line-height: 1;
}
.svc-pricing-list { list-style: none; margin: 0 0 26px; padding: 0; flex: 1; }
.svc-pricing-list li {
  position: relative; font-size: .9rem; color: #475569;
  line-height: 1.7; padding: 7px 0 7px 22px; border-bottom: 1px dashed #f1f5f9;
}
.svc-pricing-list li:last-child { border-bottom: none; }
.svc-pricing-list li::before {
  content: ''; position: absolute; left: 0; top: 14px;
  width: 6px; height: 6px; border-radius: 50%; background: #60a5fa;
}
.svc-pricing-card:hover .svc-pricing-list li::before { background: #2563eb; }
.svc-pricing-btn {
  display: block; text-align: center; text-decoration: none;
  padding: 13px 20px; font-size: .92rem; font-weight: 600;
  border-radius: 10px; color: #2563eb; background: #eff6ff;
  border: 1px solid #dbeafe; transition: all .3s ease;
}
.svc-pricing-btn:hover {
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  color: #fff; border-color: transparent;
  box-shadow: 0 8px 22px rgba(37,99,235,.28);
}
.svc-pricing-featured .svc-pricing-btn {
  background: linear-gradient(135deg, #2563eb, #1d4ed8); color: #fff; border-color: transparent;
}
@media (max-width: 1024px) {
  .svc-pricing-grid { grid-template-columns: repeat(2, 1fr); }
  .svc-hero { padding: 150px 0 90px; }
}
@media (max-width: 768px) {
  .svc-hero { padding: 120px 0 70px; }
  .svc-section { padding: 60px 0; }
  .svc-header { margin-bottom: 40px; }
  .sg-pager { gap: 4px; margin-top: 28px; }
  .sg-pager-btn { min-width: 34px; height: 34px; padding: 0 10px; font-size: .8rem; }
  .svc-pricing-grid { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .svc-hero { padding: 100px 0 50px; }
  .svc-hero-btn { padding: 12px 24px; font-size: .88rem; }
}