/* ============================================================
   基础共享样式 - 所有主题共用
   只控制布局/排版/响应式，色彩由各主题文件覆盖
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
img { max-width: 100%; display: block; }
a { transition: color 0.3s; }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 {
  font-family: 'Noto Serif SC', 'Source Han Serif SC', serif;
  font-weight: 700;
  line-height: 1.3;
}
body {
  font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ========== Hero ========== */
.hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 120px 0 80px;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 24px;
  font-size: 0.85rem;
  margin-bottom: 24px;
}

.hero-badge .dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  animation: badge-blink 2s infinite;
}

@keyframes badge-blink { 0%,100%{opacity:1;} 50%{opacity:0.3;} }

.hero h1 {
  font-size: clamp(2rem, 4.5vw, 3.4rem);
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 24px;
  letter-spacing: 0.01em;
}

.hero h1 .accent { display: inline-block; }

.hero-desc {
  font-size: 1.08rem;
  line-height: 1.8;
  margin-bottom: 32px;
  max-width: 640px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.hero-stats {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
  padding-top: 32px;
}

.hero-stat { display: flex; flex-direction: column; }

.hero-stat-num {
  font-family: 'Noto Serif SC', serif;
  font-size: 2.2rem;
  font-weight: 900;
  line-height: 1;
}

.hero-stat-label {
  font-size: 0.85rem;
  margin-top: 6px;
}

.hero-scroll {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.8rem;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.hero-scroll .arrow {
  width: 1px; height: 40px;
}

/* ========== Section 通用 ========== */
.section { padding: 80px 0; }

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 56px;
}

.section-eyebrow {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 16px;
  position: relative;
  padding-left: 40px;
}

.section-eyebrow::before {
  content: '';
  position: absolute;
  left: 0; top: 50%;
  width: 30px; height: 1px;
}

.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.4rem);
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1.05rem;
  line-height: 1.8;
}

/* ========== Services ========== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.service-card {
  padding: 32px 24px;
  border-radius: 4px;
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
  text-decoration: none;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 3px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s;
}

.service-card:hover { transform: translateY(-6px); }
.service-card:hover::before { transform: scaleX(1); }

.service-icon {
  width: 56px; height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  margin-bottom: 24px;
  font-size: 1.5rem;
  font-weight: 700;
  font-family: 'Noto Serif SC', serif;
}

.service-card h3 { font-size: 1.2rem; margin-bottom: 8px; }
.service-card p { font-size: 0.9rem; line-height: 1.7; margin-bottom: 16px; flex-grow: 1; }
.service-link { font-size: 0.85rem; font-weight: 600; display: inline-flex; align-items: center; gap: 4px; }

/* ========== Cases ========== */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.case-item {
  border-radius: 4px;
  overflow: hidden;
  transition: all 0.3s;
}

.case-item:hover { transform: translateY(-8px); }

.case-image {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
}

.case-image img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.6s;
}

.case-item:hover .case-image img { transform: scale(1.08); }

.case-tag {
  position: absolute;
  top: 16px; left: 16px;
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: 2px;
  font-weight: 600;
  letter-spacing: 0.05em;
}

.case-info { padding: 20px 24px; }
.case-info h3 { font-size: 1.1rem; margin-bottom: 6px; }
.case-info p { font-size: 0.875rem; line-height: 1.6; }

/* ========== 区域特色介绍 ========== */
.region-feature {
  padding: 32px 36px;
  margin-bottom: 32px;
  border-radius: 6px;
  position: relative;
  overflow: hidden;
}

.region-feature::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 4px; height: 100%;
}

.region-feature h3 {
  font-size: 1.3rem;
  margin-bottom: 12px;
  font-weight: 900;
}

.region-feature p {
  font-size: 0.96rem;
  line-height: 1.9;
}

.region-feature-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px 24px;
  margin-top: 20px;
}

.region-feature-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.92rem;
  line-height: 1.6;
}

.region-feature-list li::before {
  content: '◆';
  font-size: 0.7rem;
  flex-shrink: 0;
}

/* ========== 联系方式卡片 ========== */
.contact-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 48px;
  align-items: start;
}

.contact-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.contact-card {
  padding: 28px 24px;
  border-radius: 4px;
  position: relative;
  transition: all 0.3s;
}

.contact-card:hover { transform: translateY(-4px); }

.contact-card-icon {
  position: absolute;
  top: 20px; right: 20px;
  font-size: 1.3rem;
}

.contact-card-label {
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.contact-card-value {
  font-size: 1.05rem;
  font-weight: 700;
  font-family: 'Noto Serif SC', serif;
  word-break: break-all;
}

.contact-card-value a { text-decoration: none; }

/* ========== CTA Banner ========== */
.cta-banner {
  padding: 64px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 30px 30px;
}

.cta-banner .container { position: relative; z-index: 1; }
.cta-banner h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); margin-bottom: 16px; }
.cta-banner p { margin-bottom: 32px; font-size: 1.05rem; }

/* ========== Button ========== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 2px;
  cursor: pointer;
  border: none;
  transition: all 0.3s;
  text-decoration: none;
  font-family: 'Noto Sans SC', sans-serif;
}

.btn-primary { box-shadow: 0 8px 24px rgba(0,0,0,0.12); }
.btn-primary:hover { transform: translateY(-3px); }
.btn-outline { background: transparent; border: 1.5px solid; }
.btn-outline:hover { transform: translateY(-2px); }

/* ========== 应用领域 ========== */
.applications-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.application-card {
  padding: 28px 20px;
  border-radius: 4px;
  text-align: center;
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}

.application-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 3px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s;
}

.application-card:hover { transform: translateY(-6px); }
.application-card:hover::before { transform: scaleX(1); }

.application-icon {
  font-size: 2.4rem;
  margin-bottom: 16px;
  line-height: 1;
  transition: transform 0.3s;
}

.application-card:hover .application-icon { transform: scale(1.1); }

.application-card h3 { font-size: 1.1rem; margin-bottom: 8px; }
.application-card p { font-size: 0.86rem; line-height: 1.7; }

/* ========== Footer ========== */
.site-footer {
  padding: 56px 0 24px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-col h4 { font-size: 1rem; margin-bottom: 16px; font-family: 'Noto Sans SC', sans-serif; font-weight: 600; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a { font-size: 0.9rem; text-decoration: none; }
.footer-contact li {
  font-size: 0.9rem;
  display: flex;
  gap: 8px;
  align-items: flex-start;
  margin-bottom: 8px;
}

.footer-bottom {
  padding-top: 24px;
  text-align: center;
  font-size: 0.85rem;
}

.footer-bottom a { text-decoration: none; margin: 0 2px; }
.footer-tech {
  margin-top: 8px;
  font-size: 0.85rem;
}
.footer-tech a { font-weight: 600; margin: 0 2px; text-decoration: none; }
.footer-tech a:hover { text-decoration: underline; }

.footer-sitemap {
  margin-top: 12px;
  font-size: 0.85rem;
}
.footer-sitemap a { text-decoration: none; }
.footer-sitemap a:hover { text-decoration: underline; }

.footer-cities {
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.footer-cities-title {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 16px;
  text-align: center;
  letter-spacing: 0.05em;
}

.footer-cities-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  justify-content: center;
  font-size: 0.82rem;
}

.footer-cities-list a {
  text-decoration: none;
  padding: 4px 10px;
  border-radius: 2px;
  transition: all 0.2s;
  display: inline-block;
}

.footer-cities-list a:hover { padding-left: 14px; }

/* ========== 资质认证 ========== */
.cert-wrapper {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 48px;
  align-items: center;
  padding: 40px;
  border-radius: 6px;
}

.cert-image-wrap {
  position: relative;
  border-radius: 4px;
  overflow: hidden;
  padding: 28px;
  text-align: center;
}

.cert-image-wrap::before {
  content: '';
  position: absolute;
  top: -16px; left: -16px;
  width: 80px; height: 80px;
  border-top: 4px solid;
  border-left: 4px solid;
}

.cert-image-wrap::after {
  content: '';
  position: absolute;
  bottom: -16px; right: -16px;
  width: 80px; height: 80px;
  border-bottom: 4px solid;
  border-right: 4px solid;
}

.cert-image-wrap img {
  max-width: 100%;
  height: auto;
  margin: 0 auto;
  border-radius: 2px;
}

.cert-badge {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  padding: 16px 24px;
  border-radius: 4px;
  margin-bottom: 24px;
}

.cert-badge-icon { font-size: 1.6rem; line-height: 1; }
.cert-badge-title {
  font-size: 1.2rem;
  font-weight: 900;
  letter-spacing: 0.05em;
}
.cert-badge-sub {
  font-size: 0.78rem;
  margin-top: 2px;
  letter-spacing: 0.05em;
  opacity: 0.8;
}

.cert-features { margin-bottom: 32px; }
.cert-features li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 0;
  font-size: 0.95rem;
  border-bottom: 1px dashed;
}
.cert-features li:last-child { border-bottom: none; }
.cert-features .check {
  flex-shrink: 0;
  width: 22px; height: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: 0.78rem;
  font-weight: 700;
  margin-top: 1px;
}

/* ========== 流程步骤 ========== */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}

.process-step {
  text-align: center;
  position: relative;
  padding: 24px 16px;
}

.process-num {
  width: 56px; height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: 1.4rem;
  font-weight: 900;
  margin: 0 auto 20px;
  font-family: 'Noto Serif SC', serif;
}

.process-step h3 { font-size: 1.1rem; margin-bottom: 8px; }
.process-step p { font-size: 0.9rem; line-height: 1.7; }

/* ========== Reveal ========== */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.8s, transform 0.8s; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .cases-grid { grid-template-columns: repeat(2, 1fr); }
  .applications-grid { grid-template-columns: repeat(2, 1fr); }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .region-feature-list { grid-template-columns: 1fr; }
  .cert-wrapper { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .section { padding: 56px 0; }
  .services-grid,
  .cases-grid,
  .applications-grid,
  .process-grid,
  .contact-cards { grid-template-columns: 1fr; }
  .hero { min-height: auto; padding: 100px 0 60px; }
  .hero-stats { gap: 24px; }
  .hero-stat-num { font-size: 1.6rem; }
  .cert-wrapper { padding: 24px; }
  .region-feature { padding: 24px; }
  .footer-cities-list { font-size: 0.78rem; }
}