/* ==========================================================================
   明远新型材料 · 内页通用样式
   依赖 style.css（变量与基础组件）
   ========================================================================== */

/* ---------- 页面头 ---------- */
.phero {
  position: relative; overflow: hidden;
  background: linear-gradient(150deg, #0A2137 0%, #10375A 58%, #16466F 100%);
  color: #fff; padding: 52px 0 50px;
}
.phero::before {
  content: ""; position: absolute; top: -160px; right: -140px;
  width: 520px; height: 520px; border-radius: 50%;
  background: radial-gradient(circle, rgba(242,183,5,.15) 0%, rgba(242,183,5,0) 68%);
}
.phero .wrap { position: relative; z-index: 2; }
.phero h1 { font-size: 33px; font-weight: 700; line-height: 1.34; letter-spacing: -.4px; }
.phero p { color: rgba(255,255,255,.72); font-size: 15.5px; max-width: 48em; margin-top: 13px; line-height: 1.8; }

.crumb { font-size: 13px; color: rgba(255,255,255,.58); margin-bottom: 14px; }
.crumb a { color: rgba(255,255,255,.84); }
.crumb a:hover { color: var(--brand); }
.crumb span { margin: 0 7px; opacity: .5; }

/* 浅色底面包屑 */
.crumb-l { font-size: 13px; color: var(--muted); padding: 20px 0 0; }
.crumb-l a:hover { color: var(--ink); }
.crumb-l span { margin: 0 7px; color: #C2CBD5; }

/* ---------- 产品详情头部 ---------- */
.pd { display: grid; grid-template-columns: 1fr 1.15fr; gap: 46px; align-items: start; padding: 26px 0 10px; }

.pd-visual {
  border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--line);
  height: 340px; position: relative; display: flex; flex-direction: column; justify-content: flex-end;
  padding: 30px;
}
.pd-visual::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(118deg, rgba(255,255,255,.22) 0%, rgba(255,255,255,0) 46%);
}
.pd-visual b { position: relative; z-index: 2; color: #fff; font-size: 52px; font-weight: 800; letter-spacing: -1px; line-height: 1; }
.pd-visual i { position: relative; z-index: 2; font-style: normal; color: rgba(255,255,255,.62); font-size: 13px; letter-spacing: 2px; margin-top: 10px; }
.pd-visual em {
  position: relative; z-index: 2; font-style: normal; display: inline-block; margin-bottom: 10px; align-self: flex-start;
  background: rgba(242,183,5,.9); color: #2B2000; font-size: 12px; font-weight: 700; letter-spacing: .6px; padding: 4px 11px; border-radius: 4px;
}
.pd-visual.v-161 { background: linear-gradient(160deg, #55636E 0%, #3D4A55 60%, #2C3841 100%); }
.pd-visual.v-163 { background: linear-gradient(160deg, #7B8894 0%, #5D6A76 60%, #454F59 100%); }
.pd-visual.v-263 { background: linear-gradient(160deg, #2F5D6E 0%, #1F4A5A 60%, #163A48 100%); }
.pd-visual.v-264 { background: linear-gradient(160deg, #3A6B58 0%, #2A5443 60%, #1D3D31 100%); }
.pd-visual.v-381 { background: linear-gradient(160deg, #6B4A3A 0%, #523626 60%, #3A2519 100%); }
.pd-meta { font-size: 12.5px; color: var(--muted); margin-top: 14px; text-align: center; line-height: 1.6; }

.pd h1 { font-size: 31px; font-weight: 700; color: var(--ink); line-height: 1.35; letter-spacing: -.3px; }
.pd .pd-model { font-size: 13px; font-weight: 700; letter-spacing: 1.6px; color: var(--ink-3); text-transform: uppercase; margin-bottom: 10px; }
.pd .pd-desc { color: var(--text-2); margin: 16px 0 22px; }
.pd .pd-desc em { font-style: normal; color: var(--brand-d); font-weight: 600; }

.pd-points { display: grid; gap: 10px; margin-bottom: 26px; }
.pd-points li { display: flex; gap: 10px; font-size: 14.5px; color: var(--text-2); align-items: flex-start; line-height: 1.7; }
.pd-points svg { flex-shrink: 0; margin-top: 5px; color: var(--ok); }

.pd-cta { display: flex; gap: 12px; flex-wrap: wrap; padding-top: 22px; border-top: 1px dashed var(--line-2); }
.pd-tel { font-size: 13px; color: var(--muted); width: 100%; margin-top: 4px; }
.pd-tel b { color: var(--ink); font-size: 15px; }

.pd-body { display: grid; grid-template-columns: 1.35fr .65fr; gap: 46px; align-items: start; padding: 56px 0; }

/* ---------- 内容块 ---------- */
.blk { margin-bottom: 42px; }
.blk:last-child { margin-bottom: 0; }
.blk h2 { font-size: 21px; font-weight: 700; color: var(--ink); margin-bottom: 16px; padding-left: 13px; border-left: 3px solid var(--brand); line-height: 1.4; }
.blk h3 { font-size: 16px; font-weight: 700; color: var(--ink); margin: 22px 0 9px; }
.blk p { color: var(--text-2); margin-bottom: 12px; }
.blk ul.li { display: grid; gap: 8px; }
.blk ul.li li { position: relative; padding-left: 17px; color: var(--text-2); font-size: 14.5px; line-height: 1.72; }
.blk ul.li li::before { content: ""; position: absolute; left: 3px; top: 10px; width: 5px; height: 5px; border-radius: 50%; background: var(--ink-3); }

/* ---------- 参数表 ---------- */
table.spec { width: 100%; border-collapse: collapse; font-size: 14.5px; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
table.spec th, table.spec td { padding: 13px 16px; text-align: left; border-bottom: 1px solid var(--line); }
table.spec tr:last-child th, table.spec tr:last-child td { border-bottom: 0; }
table.spec th { background: var(--bg-soft); font-weight: 600; color: var(--text-2); width: 132px; font-size: 14px; }
table.spec td { color: var(--text); }
table.spec td.mute { color: var(--muted); }

/* ---------- 配套体系图 ---------- */
.systm { display: flex; align-items: stretch; flex-wrap: wrap; }
.systm .sx { flex: 1; min-width: 168px; border: 1px solid var(--line); background: #fff; padding: 20px 16px; position: relative; }
.systm .sx:not(:last-child) { border-right: 0; }
.systm .sx:first-child { border-radius: var(--radius) 0 0 var(--radius); }
.systm .sx:last-child { border-radius: 0 var(--radius) var(--radius) 0; }
.systm .sx.cur { background: var(--brand-l); border-color: rgba(242,183,5,.6); }
.systm .sx b { display: block; font-size: 15.5px; font-weight: 700; color: var(--ink); }
.systm .sx small { display: block; font-size: 11.5px; color: var(--muted); letter-spacing: 1px; margin-bottom: 8px; }
.systm .sx p { font-size: 13px; color: var(--muted); margin: 7px 0 0; line-height: 1.6; }
.systm .sx a { display: inline-block; font-size: 12.5px; color: var(--ink-3); margin-top: 9px; font-weight: 600; }
.systm .sx a:hover { color: var(--brand-d); }
.systm .sx span.tag { position: absolute; top: -9px; left: 16px; background: var(--brand); color: #2B2000; font-size: 11px; font-weight: 700; padding: 2px 8px; border-radius: 3px; }
.systm-note { margin-top: 16px; font-size: 13.5px; color: var(--muted); line-height: 1.7; }

/* ---------- 侧栏 ---------- */
.side-card { background: var(--bg-soft); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 24px; position: sticky; top: 92px; }
.side-card h4 { font-size: 16px; font-weight: 700; color: var(--ink); margin-bottom: 6px; }
.side-card > p { font-size: 13.5px; color: var(--muted); margin-bottom: 18px; line-height: 1.65; }
.side-tel { display: flex; align-items: center; gap: 10px; background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 13px 15px; margin-bottom: 10px; }
.side-tel svg { color: var(--ink-3); flex-shrink: 0; }
.side-tel b { display: block; font-size: 15.5px; font-weight: 700; color: var(--ink); letter-spacing: .3px; }
.side-tel span { font-size: 12px; color: var(--muted); }
.side-list { margin: 20px 0 0; border-top: 1px solid var(--line); padding-top: 16px; display: grid; gap: 11px; }
.side-list a { display: flex; justify-content: space-between; gap: 10px; font-size: 14px; color: var(--text-2); }
.side-list a:hover { color: var(--ink-3); }
.side-list a span { color: var(--muted); font-size: 12.5px; flex-shrink: 0; }

/* ---------- 产品中心大卡 ---------- */
.pbig { display: grid; grid-template-columns: 240px 1fr; gap: 0; border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; background: #fff; margin-bottom: 22px; transition: box-shadow .2s, border-color .2s; }
.pbig:hover { box-shadow: var(--shadow-m); border-color: var(--line-2); }
.pbig-vis { position: relative; display: flex; flex-direction: column; justify-content: flex-end; padding: 24px; min-height: 200px; }
.pbig-vis::after { content: ""; position: absolute; inset: 0; background: linear-gradient(118deg, rgba(255,255,255,.2) 0%, rgba(255,255,255,0) 48%); }
.pbig-vis b { position: relative; z-index: 2; color: #fff; font-size: 38px; font-weight: 800; letter-spacing: -.5px; line-height: 1; }
.pbig-vis i { position: relative; z-index: 2; font-style: normal; color: rgba(255,255,255,.6); font-size: 11.5px; letter-spacing: 1.6px; margin-top: 8px; }
.pbig-body { padding: 26px 28px 24px; display: flex; flex-direction: column; }
.pbig-body .pd-model { font-size: 12.5px; font-weight: 700; letter-spacing: 1.4px; color: var(--ink-3); text-transform: uppercase; margin-bottom: 8px; }
.pbig-body h3 { font-size: 20px; font-weight: 700; color: var(--ink); }
.pbig-body p { color: var(--text-2); font-size: 14.5px; margin-top: 11px; flex: 1; }
.pbig-tags { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 14px; }
.pbig-tags span { font-size: 12.5px; color: var(--ink-3); background: var(--bg-soft); padding: 3px 10px; border-radius: 4px; }
.pbig-foot { margin-top: 18px; padding-top: 15px; border-top: 1px dashed var(--line); display: flex; align-items: center; justify-content: space-between; gap: 14px; flex-wrap: wrap; }
.pbig-foot .pcard-more { font-size: 13.5px; font-weight: 600; color: var(--ink-3); }
.pbig:hover .pbig-foot .pcard-more { color: var(--brand-d); }

/* ---------- 场景区块 ---------- */
.sblock { display: grid; grid-template-columns: 300px 1fr; gap: 0; border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; background: #fff; margin-bottom: 22px; }
.sblock-l { background: var(--ink); color: #fff; padding: 30px 26px; position: relative; overflow: hidden; }
.sblock-l::before { content: ""; position: absolute; right: -60px; bottom: -60px; width: 180px; height: 180px; border-radius: 50%; background: radial-gradient(circle, rgba(242,183,5,.18) 0%, rgba(242,183,5,0) 70%); }
.sblock-l .si { width: 44px; height: 44px; border-radius: 10px; background: rgba(255,255,255,.1); display: flex; align-items: center; justify-content: center; color: var(--brand); margin-bottom: 16px; position: relative; z-index: 2; }
.sblock-l h3 { font-size: 19px; font-weight: 700; position: relative; z-index: 2; line-height: 1.4; }
.sblock-l p { font-size: 13.5px; color: rgba(255,255,255,.66); margin-top: 10px; position: relative; z-index: 2; line-height: 1.7; }
.sblock-r { padding: 28px 28px 24px; }
.sblock-r h4 { font-size: 14px; font-weight: 700; color: var(--ink); margin-bottom: 12px; }
.sblock-r h4:not(:first-child) { margin-top: 22px; }
.sblock-r ul.li { display: grid; gap: 7px; }
.sblock-r ul.li li { position: relative; padding-left: 16px; font-size: 14px; color: var(--text-2); line-height: 1.7; }
.sblock-r ul.li li::before { content: ""; position: absolute; left: 2px; top: 10px; width: 5px; height: 5px; border-radius: 50%; background: var(--ink-3); }
.sblock-pick { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.sblock-pick span { font-size: 13px; background: var(--brand-l); border: 1px solid rgba(242,183,5,.5); color: #6B5200; padding: 5px 12px; border-radius: 6px; font-weight: 600; }
.sblock-pick i { font-style: normal; color: var(--muted); font-size: 13px; }

/* ---------- 流程 ---------- */
.flow { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
.flow .fx { position: relative; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 18px 20px; }
.flow .fx b { display: block; font-size: 26px; font-weight: 800; color: var(--bg-soft2); line-height: 1; margin-bottom: 10px; letter-spacing: -1px; }
.flow .fx h4 { font-size: 15px; font-weight: 700; color: var(--ink); }
.flow .fx p { font-size: 13px; color: var(--muted); margin-top: 7px; line-height: 1.65; }

/* ---------- 服务卡 ---------- */
.svc { border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 30px 28px; background: #fff; }
.svc-h { display: flex; align-items: center; gap: 13px; margin-bottom: 16px; }
.svc-h .si { width: 44px; height: 44px; border-radius: 10px; background: var(--brand-l); border: 1px solid rgba(242,183,5,.5); display: flex; align-items: center; justify-content: center; color: var(--brand-d); flex-shrink: 0; }
.svc-h h3 { font-size: 18px; font-weight: 700; color: var(--ink); }
.svc-h small { display: block; font-size: 12px; color: var(--muted); letter-spacing: 1px; font-weight: 500; }
.svc p { color: var(--text-2); font-size: 14.5px; }
.svc ul.li { margin-top: 14px; display: grid; gap: 7px; }
.svc ul.li li { position: relative; padding-left: 16px; font-size: 14px; color: var(--text-2); line-height: 1.7; }
.svc ul.li li::before { content: ""; position: absolute; left: 2px; top: 10px; width: 5px; height: 5px; border-radius: 50%; background: var(--ink-3); }

/* ---------- FAQ ---------- */
.faq { border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; background: #fff; }
.faq details { border-bottom: 1px solid var(--line); }
.faq details:last-child { border-bottom: 0; }
.faq summary {
  padding: 19px 24px; font-size: 15.5px; font-weight: 600; color: var(--ink); cursor: pointer;
  list-style: none; position: relative; padding-right: 52px; transition: background .16s;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: ""; position: absolute; right: 24px; top: 50%; width: 9px; height: 9px;
  border-right: 1.8px solid var(--muted); border-bottom: 1.8px solid var(--muted);
  transform: translateY(-70%) rotate(45deg); transition: transform .2s;
}
.faq details[open] summary { background: var(--bg-soft); }
.faq details[open] summary::after { transform: translateY(-30%) rotate(225deg); }
.faq .fa-body { padding: 0 24px 22px; color: var(--text-2); font-size: 14.5px; line-height: 1.8; }
.faq .fa-body p { margin-bottom: 10px; }
.faq .fa-body p:last-child { margin-bottom: 0; }

/* ---------- 文章列表 ---------- */
.alist { display: grid; gap: 0; border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; background: #fff; }
.aitem { display: block; padding: 24px 26px; border-bottom: 1px solid var(--line); transition: background .16s; }
.aitem:last-child { border-bottom: 0; }
.aitem:hover { background: var(--bg-soft); }
.aitem h3 { font-size: 17px; font-weight: 700; color: var(--ink); line-height: 1.5; }
.aitem:hover h3 { color: var(--ink-3); }
.aitem p { font-size: 14px; color: var(--muted); margin-top: 8px; line-height: 1.7; }
.aitem-meta { display: flex; gap: 14px; align-items: center; margin-top: 12px; font-size: 12.5px; color: #9BA8B6; }
.aitem-meta em { font-style: normal; background: var(--bg-soft2); color: var(--ink-3); padding: 2px 9px; border-radius: 4px; }

/* ---------- 文章正文 ---------- */
.art { max-width: 780px; }
.art h2 { font-size: 20px; font-weight: 700; color: var(--ink); margin: 34px 0 14px; padding-left: 13px; border-left: 3px solid var(--brand); line-height: 1.45; }
.art h2:first-child { margin-top: 0; }
.art h3 { font-size: 16.5px; font-weight: 700; color: var(--ink); margin: 24px 0 10px; }
.art p { color: var(--text-2); margin-bottom: 14px; line-height: 1.85; }
.art ul.li { display: grid; gap: 9px; margin-bottom: 16px; }
.art ul.li li { position: relative; padding-left: 18px; color: var(--text-2); font-size: 14.5px; line-height: 1.8; }
.art ul.li li::before { content: ""; position: absolute; left: 3px; top: 11px; width: 5px; height: 5px; border-radius: 50%; background: var(--ink-3); }
.art table.spec { margin: 18px 0 22px; }
.art-note { background: var(--brand-l); border: 1px solid rgba(242,183,5,.5); border-radius: var(--radius); padding: 18px 20px; font-size: 14.5px; color: #6B5200; line-height: 1.8; margin: 20px 0; }
.art-cta { margin-top: 40px; padding: 26px 28px; background: var(--bg-soft); border: 1px solid var(--line); border-radius: var(--radius-lg); }
.art-cta h4 { font-size: 17px; font-weight: 700; color: var(--ink); margin-bottom: 8px; }
.art-cta p { font-size: 14px; color: var(--muted); margin-bottom: 16px; }
.art-cta .btn { margin-right: 10px; }

/* ---------- 关于页 ---------- */
.about-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 46px; align-items: start; }
.info-table { width: 100%; border-collapse: collapse; font-size: 14.5px; }
.info-table tr { border-bottom: 1px solid var(--line); }
.info-table tr:last-child { border-bottom: 0; }
.info-table th { text-align: left; padding: 15px 0; font-weight: 600; color: var(--muted); width: 110px; font-size: 13.5px; vertical-align: top; }
.info-table td { padding: 15px 0; color: var(--text); }
.stats4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.stats4 > div { border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; background: #fff; }
.stats4 b { display: block; font-size: 17px; font-weight: 700; color: var(--ink); margin-bottom: 5px; }
.stats4 span { font-size: 13px; color: var(--muted); line-height: 1.6; }

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .flow { grid-template-columns: repeat(3, 1fr); }
  .pbig { grid-template-columns: 200px 1fr; }
  .sblock { grid-template-columns: 240px 1fr; }
  .stats4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 1024px) {
  .pd { grid-template-columns: 1fr; gap: 30px; }
  .pd-visual { height: 250px; }
  .pd-body { grid-template-columns: 1fr; gap: 34px; }
  .side-card { position: static; }
  .about-grid { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 860px) {
  .phero { padding: 36px 0 34px; }
  .phero h1 { font-size: 23px; }
  .phero p { font-size: 14.5px; }
  .pd h1 { font-size: 24px; }
  .pd-visual b { font-size: 40px; }
  .pd-visual { height: 200px; padding: 22px; }
  .systm { flex-direction: column; }
  .systm .sx { border-right: 1px solid var(--line) !important; border-bottom: 0; border-radius: 0 !important; }
  .systm .sx:first-child { border-radius: var(--radius) var(--radius) 0 0 !important; }
  .systm .sx:last-child { border-radius: 0 0 var(--radius) var(--radius) !important; border-bottom: 1px solid var(--line); }
  table.spec th { width: 96px; padding: 11px 12px; font-size: 13px; }
  table.spec td { padding: 11px 12px; font-size: 13.5px; }
  .pbig, .sblock { grid-template-columns: 1fr; }
  .pbig-vis { min-height: 132px; padding: 20px; }
  .pbig-vis b { font-size: 30px; }
  .pbig-body, .sblock-r { padding: 22px 20px; }
  .sblock-l { padding: 24px 20px; }
  .flow { grid-template-columns: 1fr; }
  .stats4 { grid-template-columns: 1fr; }
  .faq summary { padding: 16px 18px; padding-right: 46px; font-size: 15px; }
  .faq summary::after { right: 18px; }
  .faq .fa-body { padding: 0 18px 20px; }
  .aitem { padding: 20px 18px; }
  .svc { padding: 24px 20px; }
}