/* =============================================
   home.css - 首页专属样式（建站行业科技蓝主题）
   ============================================= */

/* ===== 主题变量覆盖 ===== */
:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #60a5fa;
  --accent: #2563eb;
  --bg-gray: #f5f7fb;
  --bg-alt: #eef2f8;
  --title-color: #0f172a;
  --body-color: #64748b;
  --border-light: #e2e8f0;
}
.container, .baichong-container { max-width: 1600px; }

/* ===== 通用区块 ===== */
.home-section { padding: 90px 0; }
.section-header { text-align: center; width: 100%; margin: 0 auto 52px; }
.section-title { font-size: clamp(1.6rem, 2.6vw, 2.2rem); font-weight: 800; color: var(--title-color); line-height: 1.3; margin: 0 0 14px; }
.title-highlight {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.num-counter { color: var(--primary); font-weight: 800; }
.section-subtitle { font-size: 1rem; color: var(--body-color); line-height: 1.8; margin: 0; }

/* ===== 桌面端幻灯片 ===== */
.hero-slider { position: relative; height: 100vh; min-height: 680px; overflow: hidden; background: #0f1724; }
.hero-slides-wrapper { position: absolute; inset: 0; }
.hero-slide { position: absolute; inset: 0; opacity: 0; visibility: hidden; transition: opacity .8s ease, visibility .8s ease; }
.hero-slide.active { opacity: 1; visibility: visible; z-index: 2; }
.hero-slide-bg { position: absolute; inset: 0; background-size: cover; background-position: center; }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(120deg, rgba(9,19,42,.9) 0%, rgba(16,42,86,.72) 55%, rgba(37,99,235,.4) 100%); }
.hero-container {
  position: relative; z-index: 2;
  width: 75%; max-width: 1600px; margin: 0 auto; padding: 0 10px;
  height: 100%; display: flex; flex-direction: column; justify-content: center; align-items: center; text-align: center;
}
.hero-title {
  color: #fff; font-size: clamp(2rem, 4.2vw, 3.4rem); font-weight: 800;
  line-height: 1.25; margin: 0 0 18px; width: 100%;
  opacity: 0; animation: homeFadeInUp .8s ease forwards;
}
.hero-subtitle {
  color: rgba(255,255,255,.85); font-size: clamp(1rem, 1.6vw, 1.25rem);
  line-height: 1.8; margin: 0 0 30px; width: 100%;
  opacity: 0; animation: homeFadeInUp .8s ease .15s forwards;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; justify-content: center; opacity: 0; animation: homeFadeInUp .8s ease .3s forwards; }
.hero-linked-items { margin-top: 34px; display: flex; gap: 26px; flex-wrap: wrap; justify-content: center; width: 100%; opacity: 0; animation: homeFadeInUp .8s ease .45s forwards; }
.hero-linked-list { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-linked-card {
  display: flex; align-items: center; gap: 10px;
  background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.18);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  padding: 8px 16px 8px 8px; border-radius: 12px; text-decoration: none; color: #fff;
  transition: all .3s ease;
}
.hero-linked-card:hover { background: rgba(255,255,255,.16); border-color: rgba(255,255,255,.35); transform: translateY(-2px); }
.hero-linked-img {
  width: 44px; height: 44px; border-radius: 8px; overflow: hidden; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center; background: rgba(255,255,255,.12);
}
.hero-linked-img img { width: 100%; height: 100%; object-fit: cover; }
.hero-linked-img svg { width: 22px; height: 22px; color: rgba(255,255,255,.7); }
.hero-linked-name { font-size: .85rem; font-weight: 600; line-height: 1.4; max-width: 190px; }

.hero-dots { position: absolute; bottom: 32px; left: 50%; transform: translateX(-50%); display: flex; gap: 10px; z-index: 5; }
.hero-dot { width: 10px; height: 10px; border-radius: 50%; background: rgba(255,255,255,.35); cursor: pointer; transition: all .3s ease; }
.hero-dot.active { width: 28px; border-radius: 6px; background: #fff; }
.hero-arrow {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 5;
  width: 52px; height: 52px; border-radius: 50%;
  border: 1px solid rgba(255,255,255,.25); background: rgba(255,255,255,.08);
  color: #fff; font-size: 1.7rem; line-height: 1; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all .3s ease;
}
.hero-arrow:hover { background: rgba(37,99,235,.85); border-color: transparent; }
.hero-arrow-prev { left: 32px; }
.hero-arrow-next { right: 32px; }

@keyframes homeFadeInUp {
  from { opacity: 0; transform: translateY(26px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== 模块1：四大核心服务（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;
}

/* ===== 模块2：为什么选择我们 ===== */
.section-whyus { background: var(--bg-gray); }
.whyus-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.whyus-item {
  background: #fff; border: 1px solid var(--border-light); border-radius: 16px;
  padding: 32px 26px; text-align: center; transition: all .35s ease;
}
.whyus-item:hover {
  transform: translateY(-6px); box-shadow: 0 14px 36px rgba(15,23,42,.08);
  border-color: rgba(37,99,235,.25);
}
.whyus-icon {
  width: 60px; height: 60px; margin: 0 auto 18px; border-radius: 14px;
  background: #eff6ff; color: var(--primary);
  display: flex; align-items: center; justify-content: center; transition: all .35s ease;
}
.whyus-icon svg { width: 30px; height: 30px; }
.whyus-item:hover .whyus-icon { background: var(--primary); color: #fff; transform: rotate(-6deg) scale(1.05); }
.whyus-title { font-size: 1.05rem; font-weight: 700; color: var(--title-color); margin: 0 0 10px; }
.whyus-desc { font-size: .88rem; color: var(--body-color); line-height: 1.75; margin: 0; }

/* ===== 模块3：交付流程 ===== */
.process-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 18px; }
.process-card {
  background: #fff; border: 1px solid var(--border-light); border-radius: 16px;
  padding: 26px 18px; text-align: center; transition: all .35s ease;
}
.process-card:hover {
  transform: translateY(-6px); box-shadow: 0 14px 36px rgba(15,23,42,.08);
  border-color: rgba(37,99,235,.25);
}
.process-header { display: flex; align-items: center; justify-content: center; gap: 8px; margin-bottom: 16px; }
.process-num { font-size: 1.5rem; font-weight: 800; color: var(--primary); line-height: 1; }
.process-arrow { width: 18px; height: 18px; color: #cbd5e1; }
.process-check { width: 20px; height: 20px; color: #10b981; }
.process-name { font-size: 1rem; font-weight: 700; color: var(--title-color); margin: 0 0 8px; }
.process-text { font-size: .82rem; color: var(--body-color); line-height: 1.7; margin: 0; }

/* ===== 模块4：行业解决方案 ===== */
.industries-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.industries-placeholder {
  grid-column: 1 / -1; text-align: center; padding: 60px 20px; color: #94a3b8;
  background: #fff; border: 1px dashed var(--border-light); border-radius: 16px;
}
.industry-card {
  position: relative; display: flex; flex-direction: column; gap: 0;
  background: #fff; border: 1px solid var(--border-light); border-radius: 16px;
  overflow: hidden; text-decoration: none; transition: all .35s ease;
}
.industry-card:hover {
  transform: translateY(-6px); box-shadow: 0 14px 36px rgba(37,99,235,.12);
  border-color: rgba(37,99,235,.3);
}
.industry-icon {
  width: 100%; aspect-ratio: 16/10; flex-shrink: 0;
  background: linear-gradient(135deg, #eff6ff, #dbeafe); color: var(--primary);
  display: flex; align-items: center; justify-content: center; transition: all .35s ease; overflow: hidden;
}
.industry-icon svg { width: 40px; height: 40px; }
.industry-icon img { width: 100%; height: 100%; object-fit: cover; }
.industry-card:hover .industry-icon img { transform: scale(1.05); }
.industry-card:hover .industry-icon { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: #fff; }
.industry-content { flex: 1; padding: 20px 22px 22px; display: flex; flex-direction: column; align-items: center; gap: 6px; text-align: center; }
.industry-name { font-size: 1.05rem; font-weight: 700; color: var(--title-color); margin: 0; }
.industry-type { font-size: .82rem; color: #94a3b8; margin: 0; line-height: 1.6; }
.industry-arrow {
  width: 32px; height: 32px; margin-top: 10px; border-radius: 50%; background: #f1f5f9; color: #64748b;
  display: flex; align-items: center; justify-content: center; transition: all .3s ease;
}
.industry-arrow svg { width: 16px; height: 16px; }
.industry-card:hover .industry-arrow { background: var(--primary); color: #fff; transform: rotate(-45deg); }

/* ===== 模块5：行业指南与实战解析（文字卡片风格） ===== */
.articles-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.article-card {
  background: #fff; border: 1px solid var(--border-light); border-radius: 16px;
  transition: all .35s ease;
}
.article-card:hover {
  transform: translateY(-4px); box-shadow: 0 12px 28px rgba(15,23,42,.08);
  border-color: transparent;
}
.article-link { display: flex; flex-direction: column; height: 100%; padding: 26px 24px; text-decoration: none; color: inherit; }
.article-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.article-num { font-size: 1.75rem; font-weight: 700; line-height: 1; color: var(--primary); opacity: .22; }
.article-date { font-size: .8125rem; color: #8a8f98; }
.article-title {
  font-size: 1.0625rem; font-weight: 600; color: var(--title-color);
  line-height: 1.5; margin: 0 0 10px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.article-summary {
  font-size: .875rem; color: #4d4d4d; line-height: 1.65;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.article-footer { display: flex; align-items: center; justify-content: flex-end; padding-top: 14px; margin-top: auto; border-top: 1px solid var(--border-light); }
.read-more { display: inline-flex; align-items: center; color: var(--primary); font-size: .875rem; font-weight: 600; transition: all .3s ease; }
.article-card:hover .read-more { color: var(--primary-dark); transform: translateX(4px); }
.section-more { text-align: center; margin-top: 48px; }
.section-more .btn-outline { color: var(--primary); border-color: var(--primary); }
.section-more .btn-outline:hover { background: var(--primary); color: #fff; border-color: var(--primary); }
.articles-placeholder { text-align: center; padding: 60px 20px; color: #94a3b8; background: #fff; border: 1px dashed var(--border-light); border-radius: 16px; }

/* ===== 模块6：FAQ常见问题 ===== */
.faq-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.faq-card {
  background: #fff; border: 1px solid var(--border-light); border-radius: 16px;
  padding: 26px; transition: all .35s ease;
}
.faq-card:hover {
  transform: translateY(-4px); box-shadow: 0 12px 32px rgba(15,23,42,.07);
  border-color: rgba(37,99,235,.2);
}
.faq-q { display: flex; align-items: flex-start; gap: 12px; margin-bottom: 14px; }
.faq-q-icon {
  width: 26px; height: 26px; flex-shrink: 0; border-radius: 8px;
  background: var(--primary); color: #fff; font-size: .85rem; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
}
.faq-q h4 { font-size: 1rem; font-weight: 700; color: var(--title-color); line-height: 1.5; margin: 0; }
.faq-a { display: flex; align-items: flex-start; gap: 12px; }
.faq-a-icon {
  width: 26px; height: 26px; flex-shrink: 0; border-radius: 8px;
  background: #f1f5f9; color: var(--primary); font-size: .85rem; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
}
.faq-a p { font-size: .88rem; color: var(--body-color); line-height: 1.8; margin: 0; }

/* ===== 模块7：服务版图 ===== */
.section-sitemap { background: var(--bg-gray); }
.sitemap-cloud { display: grid; grid-template-columns: repeat(8, 1fr); gap: 12px; }
.sitemap-link {
  display: flex; align-items: center; justify-content: center;
  font-size: .88rem; color: #475569; background: #fff;
  border: 1px solid var(--border-light); border-radius: 24px;
  padding: 8px 8px; text-decoration: none; transition: all .3s ease;
  text-align: center;
}
.sitemap-link:hover {
  color: #fff; background: var(--primary); border-color: var(--primary);
  transform: translateY(-2px); box-shadow: 0 8px 20px rgba(37,99,235,.25);
}

/* ===== CTA区域（通屏渐变） ===== */
.section-cta { padding: 80px 0; background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%); }
.cta-box { text-align: center; max-width: 700px; margin: 0 auto; }
.cta-title { font-size: clamp(1.5rem, 4vw, 2.25rem); font-weight: 700; color: #fff; margin: 0 0 16px; }
.cta-subtitle { font-size: 1.125rem; color: rgba(255,255,255,.7); margin: 0 0 32px; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.btn-lg { padding: 18px 42px; font-size: 1.05rem; border-radius: 12px; }
.cta-actions .btn-primary { background: #fff; color: #151e2d; }
.cta-actions .btn-primary:hover { background: #f1f5f9; color: #151e2d; }
.cta-actions .btn-outline { color: #fff; border-color: rgba(255,255,255,.3); }
.cta-actions .btn-outline:hover { background: #fff; color: #0f172a; border-color: #fff; }

/* ===== 移动端幻灯片微调（配合全局 mobile.css） ===== */
@media(max-width:768px) {
  .mobile-hero-title::after { background: linear-gradient(90deg, transparent, #60a5fa, #2563eb, transparent); }
}

/* ===== 响应式 ===== */
@media(max-width:1200px) {
  .process-grid { grid-template-columns: repeat(3, 1fr); }
  .articles-grid { grid-template-columns: repeat(2, 1fr); }
}
@media(max-width:992px) {
  .home-section { padding: 64px 0; }
  .svc-pricing-grid { grid-template-columns: repeat(2, 1fr); }
  .whyus-grid { grid-template-columns: repeat(2, 1fr); }
  .industries-grid { grid-template-columns: repeat(2, 1fr); }
  .faq-grid { grid-template-columns: 1fr; }
  .hero-container { padding: 0 15px; }
  .hero-arrow { width: 44px; height: 44px; }
  .hero-arrow-prev { left: 18px; }
  .hero-arrow-next { right: 18px; }
  .sitemap-cloud { grid-template-columns: repeat(4, 1fr); }
}
@media(max-width:768px) {
  .hero-slider { min-height: 0; }
}
@media(max-width:640px) {
  .home-section { padding: 48px 0; }
  .section-header { margin-bottom: 34px; }
  .svc-pricing-grid { grid-template-columns: 1fr; }
  .whyus-grid { grid-template-columns: 1fr; }
  .industries-grid { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: 1fr 1fr; }
  .articles-grid { grid-template-columns: 1fr; }
  .hero-arrow { display: none; }
  .hero-linked-items { gap: 14px; }
  .hero-linked-name { max-width: 130px; }
  .cta-actions .btn-lg { padding: 15px 30px; }
  .sitemap-cloud { grid-template-columns: repeat(2, 1fr); gap: 8px; }
}