/* ============================================================
   xf-fix2.css —— 第二轮组件补丁
   补齐：案例列表(cs/csf/csc) / 行业页(ind) / 文章(post/lnk)
         案例详情(cd) / 产品详情(pd) / 页头海报(ph2/ph)
         常见问题(faq) / 产品列表(pc) / 技术资料(td)
         荣誉(trust/honor) / 图纸行(docrow) / 友链 / 目录
   ============================================================ */

/* ============================================================
   0. 全局致命冲突修复
   ------------------------------------------------------------
   天得一 style.css 里有一条裸标签规则：
     header { position:sticky; top:0; z-index:100; width:100%; height:75px; background:#FFF }
   它是给导航条写的，但会命中页面里所有 <header>（文章标题头等），
   把标题区强行压成 75px 高，内容全部溢出并与下方正文重叠。
   这里只保留给主导航 .hd，其余 header 还原成普通块。
   ============================================================ */
header:not(.hd):not(.td-header) {
  position: static !important;
  top: auto !important;
  height: auto !important;
  min-height: 0 !important;
  width: auto !important;
  z-index: auto !important;
  background: transparent !important;
}

/* 天得一 style.css：li,dd,p { line-height:2.5rem }（40px）会被所有段落继承，
   小字号正文行距过散。这里按内容区还原。 */
.post-lead,
.post-meta,
.prose p,
.prose li,
.cs-dek2,
.pd-p,
.pd-list li,
.faq-ans,
.ind-flow-i p,
.ind-qa-do p,
.ind-facts dd,
.cd-facts dd,
.csc-k,
.case-card p,
.cta-txt p,
.docrow-meta,
.docrow-note,
.lnk-i span,
.td-tx,
.pc-lead {
  line-height: 1.85 !important;
}
.post-lead,
.cs-dek2,
.pc-lead {
  line-height: 1.95 !important;
}


/* ---------------- 1. 案例列表页 ---------------- */
.cs-index-banner {
  display: block;
  max-width: 1230px;
  margin: 26px auto 0;
  padding: 0 15px;
}
.cs-index-banner img {
  display: block;
  width: 100%;
  height: 300px;
  object-fit: cover;
  border-radius: 3px;
}
.cs-main {
  padding: 0 0 20px;
}
.cs-list-sec {
  padding: 26px 0 70px;
}
.cs-eyebrow {
  margin: 0 0 10px;
  font-size: 11.5px;
  line-height: 1.6;
  letter-spacing: 2.4px;
  text-transform: uppercase;
  color: #9fc3d2;
}

/* 筛选条 */
.csf-sec {
  padding: 30px 0 0;
}
.csf {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 18px;
  padding: 14px 18px;
  background: #fff;
  border: 1px solid #e4e8e6;
  border-radius: 3px;
}
.csf-cs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.csf-c {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  font-size: 13.5px;
  line-height: 1;
  color: #4a5a60;
  background: #f2f5f5;
  border: 1px solid transparent;
  border-radius: 2px;
  cursor: pointer;
  transition: all .18s;
}
.csf-c em {
  font-style: normal;
  font-size: 11.5px;
  color: #93a3a9;
}
.csf-c:hover {
  color: #0d7fae;
  background: #e8f5fb;
}
.csf-c.is-on {
  color: #fff;
  background: #00a0e9;
  border-color: #00a0e9;
}
.csf-c.is-on em {
  color: rgba(255, 255, 255, .82);
}
.csf-q {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex: 1 1 220px;
  max-width: 300px;
  padding: 0 14px;
  height: 36px;
  background: #f7f9f9;
  border: 1px solid #e4e8e6;
  border-radius: 2px;
  color: #9aa6ab;
}
.csf-q input {
  flex: 1;
  min-width: 0;
  border: 0;
  background: transparent;
  font-size: 13.5px;
  color: #33454b;
  outline: none;
}
.csf-q input::placeholder {
  color: #aab7bc;
}
.csf-n {
  font-size: 13px;
  color: #7c8b91;
}
.csf-n b {
  color: #142b35;
  font-size: 15px;
  margin-right: 3px;
}

/* 案例分组与卡片 */
.cs-grp {
  margin: 0 0 44px;
}
.cs-grp-h {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0 0 18px;
  padding-bottom: 12px;
  font-size: 21px;
  font-weight: 700;
  color: #142b35;
  border-bottom: 1px solid #e8eceb;
}
.cs-dek2 {
  margin: 0 0 20px;
  max-width: 780px;
  font-size: 14.5px;
  line-height: 1.9;
  color: #5a6a70;
}
.cs-subs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 22px;
}
.cs-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

/* 通用案例卡 */
.case-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.case-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid #e8eceb;
  border-radius: 3px;
  overflow: hidden;
  transition: box-shadow .2s, transform .2s;
}
.case-card:hover {
  box-shadow: 0 12px 28px rgba(16, 58, 74, .12);
  transform: translateY(-2px);
}
.case-card-link {
  display: flex;
  flex-direction: column;
  height: 100%;
  color: inherit;
}
.case-card-go {
  margin-top: auto;
  padding: 12px 16px;
  font-size: 12.5px;
  color: #00a0e9;
  border-top: 1px solid #f0f3f3;
}

/* ---------------- 2. 行业页 ind-* ---------------- */
.ind-btns {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin: 22px 0 0;
}
.ind-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13.5px;
  color: #bce8f4;
  border-bottom: 1px solid rgba(188, 232, 244, .4);
  padding-bottom: 2px;
}
.ind-link:hover {
  color: #fff;
}
.ind-aside {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.ind-photo {
  margin: 0;
  overflow: hidden;
  border-radius: 3px;
  background: #0b1f27;
}
.ind-photo img {
  display: block;
  width: 100%;
  height: auto;
}
.ind-facts {
  margin: 0;
  padding: 22px 24px;
  background: #f5f7f7;
  border-radius: 3px;
}
.ind-facts > div {
  display: flex;
  gap: 14px;
  padding: 9px 0;
  border-bottom: 1px dashed #dde4e3;
  font-size: 13.5px;
  line-height: 1.75;
}
.ind-facts > div:last-child {
  border-bottom: 0;
}
.ind-facts dt {
  flex: 0 0 84px;
  color: #8a9aa0;
}
.ind-facts dd {
  margin: 0;
  flex: 1;
  color: #33454b;
}

/* 工艺流程列表 */
.ind-flow {
  margin: 0;
}
.ind-flow-i {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  column-gap: 18px;
  align-items: start;
  padding: 22px 0;
  border-bottom: 1px solid #e8eceb;
}
.ind-flow-i:last-child {
  border-bottom: 0;
}
.ind-flow-n {
  grid-row: 1 / span 3;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1.5px;
  color: #00a0e9;
  padding-top: 2px;
}
.ind-flow-i h3 {
  grid-column: 2;
  margin: 0 0 8px;
  font-size: 17px;
  line-height: 1.5;
  font-weight: 600;
  color: #142b35;
}
.ind-flow-i p {
  grid-column: 2;
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.85;
  color: #4a5a60;
}
.ind-flow-c {
  grid-column: 2;
  justify-self: start;
  display: inline-block;
  padding: 5px 11px;
  font-size: 12.5px;
  line-height: 1.5;
  color: #0b7a9e;
  background: #eaf6fb;
  border-radius: 2px;
}

/* 行业问答卡 */
.ind-qa {
  position: relative;
  padding: 26px 28px 26px 68px;
  margin: 0 0 16px;
  background: #fff;
  border: 1px solid #e8eceb;
  border-radius: 3px;
}
.ind-qa-n {
  position: absolute;
  left: 26px;
  top: 26px;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 1px;
  color: #00a0e9;
}
.ind-qa h3 {
  margin: 0 0 12px;
  font-size: 16.5px;
  line-height: 1.55;
  font-weight: 600;
  color: #142b35;
}
.ind-qa-do {
  display: flex;
  gap: 10px;
  font-size: 14px;
  line-height: 1.85;
  color: #4a5a60;
}
.ind-qa-lb {
  flex: 0 0 auto;
  padding: 2px 9px;
  height: fit-content;
  font-size: 11.5px;
  line-height: 1.7;
  color: #0b7a9e;
  background: #eaf6fb;
  border-radius: 2px;
}
.ind-qa-do p {
  margin: 0;
}

/* 行业页其他块 */
.ind-pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}
.ind-route {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.ind-tiers {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}
.ind-tier-foot {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px dashed #dde4e3;
}
.ind-maint,
.ind-check {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.ind-rt-n {
  font-size: 12px;
  letter-spacing: 1px;
  color: #00a0e9;
}
.ind-rt-risk {
  font-size: 13px;
  color: #b4552f;
}
.ind-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.ind-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid #e8eceb;
  border-radius: 3px;
  overflow: hidden;
}
.ind-card-h {
  margin: 0;
  padding: 16px 18px 0;
  font-size: 16px;
  font-weight: 600;
  color: #142b35;
}
.ind-card-meta {
  padding: 10px 18px 14px;
  font-size: 12.5px;
  line-height: 1.8;
  color: #7c8b91;
}
.ind-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 0 18px 14px;
}
.ind-card-more {
  margin-top: auto;
  padding: 12px 18px;
  font-size: 12.5px;
  color: #00a0e9;
  border-top: 1px solid #f0f3f3;
}

/* ---------------- 3. 文章详情 post-* ---------------- */
.post {
  display: block;
}
.wrap-txt {
  max-width: 1230px;
}
.post-back {
  max-width: 840px;
  margin: 40px auto 0;
  padding-top: 22px;
  font-size: 14px;
  border-top: 1px solid #e8eceb;
}
.post-back a {
  color: #00a0e9;
}
.post-fig {
  margin: 26px auto;
  max-width: 840px;
}
.post-fig img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 3px;
}
.post-lead {
  margin: 14px 0 0 !important;
  font-size: 15px !important;
  line-height: 1.95 !important;
  color: #5a6a70 !important;
  text-align: left;
}

/* 文中链接卡 */
.lnk-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.lnk-i {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px 18px;
  background: #fff;
  border: 1px solid #e4e8e6;
  border-radius: 3px;
  color: #142b35;
  transition: all .18s;
}
.lnk-i:hover {
  border-color: #00a0e9;
  box-shadow: 0 6px 18px rgba(16, 58, 74, .08);
}
.lnk-i b {
  font-size: 15px;
  font-weight: 600;
  color: #142b35;
}
.lnk-i span {
  font-size: 13px;
  line-height: 1.7;
  color: #6b7b81;
}
.lnk-i svg {
  align-self: flex-end;
  margin-top: 6px;
  color: #00a0e9;
}

/* 图片灯箱项 */
.lightbox-item {
  cursor: zoom-in;
}

/* ---------------- 4. 案例详情 cd-* ---------------- */
.cd-hero {
  margin: 0 0 30px;
  overflow: hidden;
  border-radius: 3px;
  background: #eef2f3;
  line-height: 0;
}
.cd-hero img {
  display: block;
  width: 100%;
  height: auto;
}
.cd-facts {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin: 0 0 40px;
  background: #e8eceb;
  border: 1px solid #e8eceb;
  border-radius: 3px;
  overflow: hidden;
}
.cd-facts > div {
  padding: 16px 18px;
  background: #fff;
}
.cd-facts dt {
  margin: 0 0 6px;
  font-size: 11.5px;
  letter-spacing: 1px;
  color: #8a9aa0;
}
.cd-facts dd {
  margin: 0;
  font-size: 14.5px;
  font-weight: 600;
  color: #142b35;
}
.cd-stepshd {
  margin: 0 0 18px;
  font-size: 21px;
  font-weight: 700;
  color: #142b35;
}
.cd-steps {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}
.cd-step {
  display: flex;
  gap: 16px;
  padding: 22px 24px;
  background: #fff;
  border: 1px solid #e8eceb;
  border-radius: 3px;
}
.cd-n {
  flex: 0 0 auto;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  color: #00a0e9;
}

/* ---------------- 5. 产品详情 pd-* 修正 ---------------- */
.pd-img {
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
}
.pd-img img {
  display: block !important;
  width: 100% !important;
  height: 100% !important;
  max-width: 100% !important;
  max-height: 100% !important;
  object-fit: contain !important;
  margin: 0 auto !important;
}
.pd-fig {
  margin: 0 0 26px;
  overflow: hidden;
  border-radius: 3px;
  background: #f2f5f5;
  line-height: 0;
}
.pd-fig img {
  display: block;
  width: 100%;
  height: auto;
}
.pd-meta {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* ---------------- 6. 页头海报 ph2-* / ph-* ---------------- */
.ph2-poster {
  position: relative;
  background: #0e2a33;
  overflow: hidden;
}
.ph2-poster::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(120% 140% at 80% 0%, rgba(0, 160, 233, .28), transparent 62%);
  pointer-events: none;
}
.ph2-paper {
  background: #f5f7f7;
}
.ph2-main {
  max-width: 1230px;
  margin: 0 auto;
  padding: 0 15px;
}
.ph2-desc {
  max-width: 760px;
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.95;
  color: rgba(255, 255, 255, .84);
}

.ph-split {
  background: #0e2a33;
}
/* 两栏挂在 .ph-in 上（它才是 .ph-main 与 .ind-aside 的父级） */
.ph-split > .ph-in,
.ph-split > .wrap {
  display: grid !important;
  grid-template-columns: minmax(0, 1fr) 400px !important;
  column-gap: 44px !important;
  row-gap: 28px !important;
  align-items: center !important;
  max-width: 1230px !important;
  margin: 0 auto !important;
  padding: 60px 15px !important;
}
.ph-split > .ph-in > .ph-main,
.ph-split > .wrap > .ph-main {
  grid-column: 1;
  min-width: 0;
}
.ph-split > .ph-in > .ind-aside,
.ph-split > .wrap > .ind-aside {
  grid-column: 2;
  min-width: 0;
}
.ph-main {
  position: relative;
  z-index: 2;
}
.ph-extra {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}
.ph-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

/* ---------------- 7. 常见问题 faq ---------------- */
.sec-faq {
  background: #f5f7f7;
}
.faq-list {
  max-width: 900px;
  margin: 0 auto;
}
.faq-item {
  padding: 20px 24px;
  margin-bottom: 12px;
  background: #fff;
  border: 1px solid #e8eceb;
  border-radius: 3px;
}
.faq-item h3,
.faq-item summary {
  margin: 0;
  font-size: 16px;
  line-height: 1.6;
  font-weight: 600;
  color: #142b35;
}
.faq-ans {
  margin: 12px 0 0;
  font-size: 14.5px;
  line-height: 1.9;
  color: #4a5a60;
}

/* ---------------- 8. 产品列表 pc-* ---------------- */
.pc-lead {
  margin: 0 0 26px;
  max-width: 820px;
  font-size: 15px;
  line-height: 1.95;
  color: #5a6a70;
}
.pc-f {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 26px;
}
.pc-pick,
.pc-combo,
.pc-faq,
.pc-oth {
  padding: 26px 0;
}
.pc-link {
  color: #00a0e9;
  font-size: 14px;
}
.pc-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 22px;
  font-size: 14px;
  color: #00a0e9;
}

/* ---------------- 9. 技术资料 td-* ---------------- */
.td-cases {
  padding: 26px 0;
}
.td-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 24px;
  border-bottom: 1px solid #e8eceb;
}
.td-case {
  padding: 22px 0;
  border-bottom: 1px solid #f0f3f3;
}
.td-case-a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 16px;
  font-weight: 600;
  color: #142b35;
}
.td-tx {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: #5a6a70;
}
.td-more,
.td-more-v {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 10px;
  font-size: 13.5px;
  color: #00a0e9;
}

/* ---------------- 10. 荣誉 / 信任 / 标准 / 图纸行 ---------------- */
.trust-cards,
.honor-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.trust-card,
.honor-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid #e8eceb;
  border-radius: 3px;
  overflow: hidden;
}
.honor-body {
  padding: 16px 18px;
  font-size: 13.5px;
  line-height: 1.8;
  color: #4a5a60;
}
.std-kv {
  display: grid;
  grid-template-columns: 140px minmax(0, 1fr);
  gap: 10px 18px;
  padding: 14px 0;
  border-bottom: 1px dashed #dde4e3;
  font-size: 14px;
  line-height: 1.8;
}
.std-desc {
  font-size: 13.5px;
  line-height: 1.85;
  color: #6b7b81;
}
.std-no-badge {
  color: #b4552f;
}
.docrow-meta {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: #7c8b91;
}
.docrow-note {
  margin: 12px 0 0;
  padding: 12px 16px;
  font-size: 13px;
  line-height: 1.8;
  color: #5a6a70;
  background: #f5f7f7;
  border-left: 3px solid #00a0e9;
}
.docrow--flip .docrow-fig {
  order: 2;
}

/* ---------------- 11. 友链 / 目录 ---------------- */
.friend-links {
  padding: 26px 0;
}
.friend-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  font-size: 13px;
  color: #6b7b81;
}
.catalog-intro {
  max-width: 820px;
  margin: 0 0 28px;
  font-size: 15px;
  line-height: 1.95;
  color: #5a6a70;
}
.catalog-group {
  margin: 0 0 34px;
}
.catalog-ghead {
  margin: 0 0 16px;
  padding-bottom: 12px;
  font-size: 20px;
  font-weight: 700;
  color: #142b35;
  border-bottom: 1px solid #e8eceb;
}
.catalog-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}
.catalog-card {
  display: block;
  padding: 16px 18px;
  background: #fff;
  border: 1px solid #e8eceb;
  border-radius: 3px;
  color: #142b35;
  transition: all .18s;
}
.catalog-card:hover {
  border-color: #00a0e9;
  box-shadow: 0 8px 20px rgba(16, 58, 74, .08);
}

/* ---------------- 12b. 联系页 ---------------- */
.contact-grid {
  display: block;
}
.contact-info {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin: 0 0 36px;
}
.contact-info > .card {
  min-width: 0;
  padding: 20px 22px;
  background: #fff;
  border: 1px solid #e8eceb;
  border-radius: 3px;
  font-size: 14px;
  line-height: 1.85;
  color: #4a5a60;
}
.qr-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.qr-card img {
  display: block;
  width: 100%;
  max-width: 150px;
  height: auto;
  border-radius: 2px;
}
.contact-form {
  min-width: 0;
}
.map-h {
  margin: 34px 0 14px;
  font-size: 20px;
  font-weight: 700;
  color: #142b35;
}
.map-wrap {
  overflow: hidden;
  border: 1px solid #e8eceb;
  border-radius: 3px;
  background: #f2f5f5;
}

/* 关于页：顶部四个数字指标 */
.about-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin: 0 0 36px;
}
.about-stat {
  padding: 22px 24px;
  background: #fff;
  border: 1px solid #e8eceb;
  border-radius: 3px;
}
.about-stat b {
  display: block;
  font-size: 34px;
  line-height: 1.15;
  font-weight: 700;
  color: #00a0e9;
}
.about-stat span {
  display: block;
  margin-top: 6px;
  font-size: 13.5px;
  line-height: 1.6;
  color: #5a6a70;
}
.about-intro {
  margin: 0 0 30px;
}
.about-intro .lead {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.95;
  color: #4a5a60;
}

/* 关于页：可核实信息的小标签 */
.fact-l {
  display: block;
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: .6px;
  color: #8a9aa0;
}


.ticker-track {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  line-height: 1.8;
  color: #7c8b91;
}
.ticker-dot {
  color: #c4cfd3;
}

/* ---------------- 13. 导航下拉面板 ----------------
   注意：下拉内部是天得一原版 flex 三栏布局
   （.sub-nav-item 下 dl 分别 36%/36%/28% 宽），
   不要改成 grid，否则内容会被压扁重叠。这里只做尺寸微调。 */
.xf-mega-panel .sub-nav-item {
  max-width: 1230px !important;
  margin: 0 auto !important;
}
.xf-mega-panel .sub-nav-case-item img {
  display: block !important;
  width: 100% !important;
  height: 88px !important;
  object-fit: cover !important;
  border-radius: 2px !important;
}
.xf-mega-panel .sub-nav-case-item p {
  margin: 6px 0 0 !important;
  font-size: 12px !important;
  line-height: 1.6 !important;
  color: #5a6a70 !important;
  white-space: normal !important;
}

/* ---------------- 13b. 描边按钮：浅底用深色，深底用白色 ---------------- */
.btn-w {
  background: #fff;
  color: #142b35;
  border: 1px solid #cfd8da;
}
.btn-w:hover {
  background: #142b35;
  color: #fff;
  border-color: #142b35;
}
/* 深色容器内的描边按钮保持白字（.pd-top 是浅灰底，不能算在这里） */
.cta-box .btn-w,
.sec-cta .btn-w,
.xf-contact .btn-w,
.cs-head .btn-w,
.cd-hero .btn-w {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, .62);
}
.cta-box .btn-w:hover,
.sec-cta .btn-w:hover,
.xf-contact .btn-w:hover {
  background: #fff;
  color: #0f3a46;
  border-color: #fff;
}

/* ---------------- 14. 响应式 ---------------- */
@media (max-width: 1100px) {
  .cs-list,
  .case-grid,
  .ind-grid,
  .ind-tiers,
  .trust-cards,
  .honor-grid,
  .catalog-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .cd-facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .ph-split {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}

@media (max-width: 768px) {
  .cs-index-banner img {
    height: 180px;
  }
  .cs-list,
  .case-grid,
  .ind-grid,
  .ind-tiers,
  .trust-cards,
  .honor-grid,
  .catalog-grid,
  .lnk-grid,
  .cd-steps,
  .ind-pair {
    grid-template-columns: 1fr;
  }
  .cd-facts {
    grid-template-columns: 1fr;
  }
  .csf {
    padding: 12px 14px;
    gap: 12px;
  }
  .csf-q {
    max-width: none;
    flex: 1 1 100%;
  }
  .ind-flow-i {
    grid-template-columns: 40px minmax(0, 1fr);
    column-gap: 12px;
  }
  .ind-qa {
    padding: 20px 18px 20px 18px;
  }
  .ind-qa-n {
    position: static;
    display: block;
    margin-bottom: 8px;
  }
  .post-h h1 {
    font-size: 24px;
  }
  .std-kv {
    grid-template-columns: 1fr;
    gap: 4px;
  }
}

/* ---------------- 15. 小屏补充 ---------------- */
@media (max-width: 900px) {
  .about-stats,
  .contact-info {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 600px) {
  .about-stats,
  .contact-info {
    grid-template-columns: 1fr;
  }
}