:root {
  --primary: #b45309;
  --primary-dark: #92400e;
  --accent: #0d9488;
  --bg-soft: #faf7f2;
  --footer-bg: #292524;

  --text: #292420;
  --text-soft: #7d7368;
  --border: #eae4db;
  --radius: 10px;
  --wrap: 940px;
  --topbar-h: 50px;
  --axis-x: 24px;   /* 轴线横坐标 */
  --indent: 76px;   /* 节点内容缩进 */
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
.friend-links { display:none }

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: #fff;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
img { display: block; max-width: 100%; }

.wrap {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------------- sticky 细顶栏 ---------------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--topbar-h);
  background: #fff;
  border-bottom: 1px solid var(--border);
}
.topbar-inner {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 18px;
}
.logo { font-size: 16px; font-weight: 800; white-space: nowrap; }
.logo-region { margin-left: 8px; font-size: 12px; font-weight: 600; color: var(--primary); }
.nav {
  flex: 1;
  display: flex;
  justify-content: safe center;
  gap: 2px;
  overflow-x: auto;
  scrollbar-width: none;
}
.nav::-webkit-scrollbar { display: none; }
.nav a {
  font-size: 13px;
  color: var(--text-soft);
  padding: 5px 11px;
  white-space: nowrap;
}
.nav a:hover { color: var(--primary); }
.topbar-tel { font-size: 14px; font-weight: 700; color: var(--primary-dark); white-space: nowrap; }
.topbar-tel:hover { color: var(--accent); }

/* ---------------- Hero：居中文字 ---------------- */
.hero { text-align: center; padding: 60px 0 48px; }
.hero-kicker { font-size: 13px; font-weight: 600; letter-spacing: 0.12em; color: var(--primary); }
.hero-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  line-height: 1.35;
  margin-top: 12px;
}
.hero-sub { font-size: 16px; color: var(--text-soft); max-width: 620px; margin: 12px auto 0; }
.hero-tags { font-size: 13px; color: var(--accent); margin-top: 12px; }
.btn {
  display: inline-block;
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  background: var(--primary);
  border-radius: 999px;
  padding: 11px 32px;
  margin-top: 22px;
  white-space: nowrap;
  transition: background 0.2s, transform 0.2s;
}
.btn:hover { background: var(--primary-dark); transform: translateY(-1px); }

/* ---------------- 照片带：banner 轮播（版心宽居中） ----------------
   高随图，JS(fit) 两段式封顶：h = 容器宽×首图比例，上限 = 视口高−顶栏高；
   min-height 仅作 JS 就位前占位，fit() 内会清零 */
.photoband {
  position: relative;
  overflow: hidden;
  min-height: 260px;
  background: var(--bg-soft);
  border-radius: var(--radius);
}
.photoband-track { position: absolute; inset: 0; }
.slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.6s;
}
.slide.is-active { opacity: 1; }
.slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
.photoband-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 5;
  width: 38px;
  height: 38px;
  border: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.85);
  color: var(--text);
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  transition: background 0.2s;
}
.photoband-arrow:hover { background: #fff; }
.photoband-prev { left: 12px; }
.photoband-next { right: 12px; }
.photoband-dots {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 12px;
  z-index: 5;
  display: flex;
  justify-content: center;
  gap: 7px;
}
.photoband-dot {
  width: 8px;
  height: 8px;
  border: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.55);
  cursor: pointer;
  transition: background 0.2s;
}
.photoband-dot.is-active { background: var(--accent); }

/* ---------------- 时间轴：左贯穿竖线 + 节点圆 ---------------- */
.timeline-outer { padding-top: 56px; }
.timeline {
  position: relative;
  padding-bottom: 24px;
}
.timeline::before {
  content: "";
  position: absolute;
  left: var(--axis-x);
  top: 6px;
  bottom: 0;
  width: 2px;
  background: var(--border);
}
.node {
  position: relative;
  padding-left: var(--indent);
  padding-bottom: 60px;
  scroll-margin-top: calc(var(--topbar-h) + 12px);
}
.node-dot {
  position: absolute;
  left: 0;
  top: 0;
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 800;
  color: #fff;
  background: var(--primary);
  border: 4px solid #fff;
  border-radius: 50%;
  box-shadow: 0 0 0 1px var(--border);
}
.node-head { margin-bottom: 20px; }
.node-title { font-size: 22px; font-weight: 800; line-height: 1.4; padding-top: 8px; }
.node-subtitle { font-size: 13px; color: var(--text-soft); margin-top: 6px; }

/* 段落型 */
.prose { font-size: 15px; }
.prose a { color: var(--primary); }
.prose a:hover { text-decoration: underline; }
.about-local { margin-top: 14px; color: var(--text-soft); font-size: 14px; }
.bizcard {
  max-width: 440px;
  margin-top: 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.bizcard img { width: 100%; }

/* 指标型：浅底条（不限个数，均分一行） */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 18px;
  background: var(--bg-soft);
  border-radius: var(--radius);
  padding: 24px 22px;
}
.stat-value {
  display: block;
  font-size: 30px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
}
.stat-label { display: block; font-size: 13px; color: var(--text-soft); margin-top: 5px; }

/* 产品型：双列小图卡 */
.prod-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}
.prod {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
}
.prod:hover { transform: translateY(-2px); box-shadow: 0 10px 22px rgba(0, 0, 0, 0.08); }
.prod img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}
.prod-name { font-size: 14px; font-weight: 700; padding: 10px 14px 12px; }

/* 问答型：左色条列表 */
.faq { display: grid; gap: 14px; }
.faq-item {
  border-left: 3px solid var(--accent);
  background: var(--bg-soft);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 15px 18px;
}
.faq-q { font-size: 15px; font-weight: 700; }
.faq-a { font-size: 14px; color: var(--text-soft); margin-top: 5px; }

/* 流程型：内嵌虚线小轴呼应主轴 */
.steps { position: relative; display: grid; gap: 20px; padding-left: 20px; }
.steps::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 8px;
  bottom: 8px;
  border-left: 2px dashed var(--border);
}
.step { position: relative; }
.step-dot {
  position: absolute;
  left: -20px;
  top: 8px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
}
.step-title { font-size: 15px; font-weight: 700; }
.step-desc { font-size: 13px; color: var(--text-soft); margin-top: 2px; }

/* 卡片型：单列描边卡 */
.card-list { display: grid; gap: 14px; }
.card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px 17px;
}
.card-title { font-size: 16px; font-weight: 700; }
.card-title::before { content: ""; display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--primary); margin-right: 10px; vertical-align: 2px; }
.card-desc { font-size: 14px; color: var(--text-soft); margin-top: 7px; }

/* 轴末端 CTA 收束节点 */
.node-end { padding-bottom: 8px; }
.node-dot-end { background: var(--accent); font-size: 20px; }
.cta-title { font-size: 22px; font-weight: 800; padding-top: 8px; }
.cta-sub { font-size: 14px; color: var(--text-soft); margin-top: 4px; }
.cta-btn { background: var(--accent); font-size: 17px; }
.cta-btn:hover { background: var(--primary); }

/* ---------------- 页脚 ---------------- */
.footer {
  margin-top: 56px;
  background: var(--footer-bg);
  color: rgba(255, 255, 255, 0.72);
  padding: 34px 0 40px;
}
.footer-name { font-size: 16px; font-weight: 700; color: #fff; }
.footer-desc { font-size: 13px; margin-top: 6px; }
.foot-sites { font-size: 13px; margin-top: 12px; }
.foot-sites a { color: #fbbf77; }
.foot-sites a:hover { text-decoration: underline; }
.footer-copy { font-size: 12px; margin-top: 14px; opacity: 0.7; }

/* ---------------- 响应式 ---------------- */
@media (max-width: 960px) {
  .nav { display: none; }
  .topbar-inner { justify-content: space-between; }
}
@media (max-width: 640px) {
  :root { --axis-x: 17px; --indent: 56px; }
  .node-dot { width: 36px; height: 36px; font-size: 12px; border-width: 3px; }
  .prod-grid { grid-template-columns: minmax(0, 1fr); }
  .photoband-arrow { width: 32px; height: 32px; font-size: 17px; }
}

/* 文章内容板块（详情页）：标题/时间 + 正文 + 侧栏推荐列表 */
.section-article {
  padding: 64px 0;
}

.article-head {
  text-align: center;
  margin-bottom: 44px;
}

.article-title {
  font-size: 28px;
  font-weight: 800;
  color: inherit;
  position: relative;
  display: inline-block;
  padding-bottom: 14px;
}

.article-title::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 48px;
  height: 3px;
  background: var(--accent);
  border-radius: 2px;
}

.article-time {
  margin-top: 14px;
  font-size: 14px;
  opacity: 0.65;
}

/* 文章板块嵌在时间轴内：补节点同款左缩进避让轴线，右侧用满宽度 */
.timeline .section-article { padding-left: var(--indent); }
.timeline .section-article > .wrap { max-width: none; padding-left: 0; padding-right: 0; }

.article-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  align-items: start;
}

.article-clamp {
  min-width: 0;
}

.article-clamp.is-clamped {
  max-height: 600px;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(#000 calc(100% - 90px), transparent);
  mask-image: linear-gradient(#000 calc(100% - 90px), transparent);
}

.article-clamp-btn {
  grid-column: 1;
  grid-row: 2;
  align-self: start;
  justify-self: center;
  margin-top: 4px;
  padding: 9px 34px;
  font-size: 14px;
  color: var(--primary);
  background: transparent;
  border: 1px solid var(--primary);
  border-radius: 20px;
  cursor: pointer;
}

.article-clamp-btn:hover {
  color: #fff;
  background: var(--primary);
}

.article-body {
  font-size: 16px;
  line-height: 1.9;
  opacity: 0.88;
  text-align: justify;
}

.article-body p {
  margin-bottom: 16px;
}

.article-body img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 18px auto;
  border-radius: 0;
}

.article-side {
  grid-row: 3;
  display: grid;
  gap: 24px;
  min-width: 0;
}

.article-list-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 0;
  padding: 20px 22px;
  min-width: 0;
  overflow: hidden;
}

.article-list-title {
  font-size: 17px;
  font-weight: 700;
  padding-bottom: 12px;
  margin-bottom: 10px;
  border-bottom: 2px solid var(--primary);
}

.article-list li {
  list-style: none;
  padding: 7px 0;
  border-bottom: 1px dashed var(--border);
}

.article-list li:last-child {
  border-bottom: none;
}

.article-list a {
  display: block;
  font-size: 14px;
  color: inherit;
  opacity: 0.8;
  text-decoration: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.article-list a:hover {
  color: var(--primary);
  opacity: 1;
}

/* 关于我们双列：文字左 + 名片卡右 */
.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) clamp(260px, 34%, 400px);
  gap: 36px;
  align-items: start;
}

.about-grid .bizcard {
  margin: 0;
}

@media (max-width: 860px) {
  .about-grid {
    grid-template-columns: 1fr;
  }

  .about-grid .bizcard {
    margin: 24px auto 0;
  }
}

/* ---------- logo 牌匾字标（圆角矩形色块） ---------- */
.logo-word { position: relative; display: inline-block; vertical-align: middle; white-space: nowrap; line-height: 1.2; padding: .26em .72em; background: linear-gradient(115deg, var(--primary-dark), var(--primary) 55%, var(--primary-dark)); color: #fff; -webkit-text-fill-color: #fff; /*border-radius: .35em;*/ box-shadow: 0 3px 10px color-mix(in srgb, var(--primary) 40%, transparent); overflow: hidden; }
.logo-word-in { display: inline-block; }
.logo-word::after { content: ""; position: absolute; top: 0; bottom: 0; left: 0; width: 45%; background: linear-gradient(100deg, transparent, rgba(255, 255, 255, .45), transparent); transform: translateX(-160%); animation: logoShine 2.4s ease-in-out infinite; }
@keyframes logoShine { 0% { transform: translateX(-160%); } 100% { transform: translateX(320%); } }
@media (prefers-reduced-motion: reduce) { .logo-word::after { animation: none; } }