/*
  设计哲学：工业润滑解决方案官网美学。
  本样式文件复刻“解决方案总页”参考图：白色导航、深色油液设备横幅、金黄色强调、白底卡片网格、流程节点、案例卡片、深色优势横条。
  按用户要求不生成图片；所有视觉图片区域均为 img 标签路径占位，用户可自行替换 src。
*/



:root {
  --radius: 0.45rem;
  --background: oklch(1 0 0);
  --foreground: oklch(0.16 0.012 85);
  --card: oklch(1 0 0);
  --card-foreground: oklch(0.16 0.012 85);
  --primary: oklch(0.78 0.16 82);
  --primary-foreground: oklch(0.12 0.01 80);
  --secondary: oklch(0.965 0.004 90);
  --secondary-foreground: oklch(0.25 0.014 85);
  --muted: oklch(0.94 0.004 90);
  --muted-foreground: oklch(0.48 0.01 85);
  --accent: oklch(0.78 0.16 82);
  --accent-foreground: oklch(0.12 0.01 80);
  --border: oklch(0.9 0.005 90);
  --ring: oklch(0.78 0.16 82);
}

  * {  box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body {
    
    margin: 0;
    font-family: "Noto Sans SC", "Microsoft YaHei", "PingFang SC", Arial, system-ui, sans-serif;
    -webkit-font-smoothing: antialiased;
    text-rendering: geometricPrecision;
  }
  a { color: inherit; text-decoration: none; }
  button { font: inherit; }
  button:not(:disabled), a[href] { cursor: pointer; }

.site-shell {
  min-height: 100vh;
  overflow-x: hidden;
  background: #fff;
  color: #171717;
}

.img-slot {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(255,255,255,0.11), rgba(255,255,255,0)),
    repeating-linear-gradient(90deg, rgba(214,161,43,0.08) 0 1px, transparent 1px 38px),
    linear-gradient(135deg, #151a1b, #343936 45%, #0a0d0e 100%);
}

.img-slot img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  transition: opacity 160ms ease;
}

.img-path-label {
  position: absolute;
  left: 12px;
  bottom: 10px;
  z-index: 2;
  max-width: calc(100% - 24px);
  padding: 5px 8px;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 99px;
  color: rgba(255,255,255,0.56);
  background: rgba(0,0,0,0.22);
  font-size: 10px;
  letter-spacing: 0.02em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: none;
}

.img-slot.missing-image .img-path-label { display: block; }

/* ========== Solutions Banner: factory-style top banner ========== */
.solutions-page .banner {
  position: relative;
  min-height: 320px;
  margin-top: var(--site-header-height);
  overflow: hidden;
  color: #fff;
  background: #060809;
}

.solutions-page .banner-bg,
.solutions-page .banner-overlay {
  position: absolute;
  inset: 0;
}

.solutions-page .banner-bg {
  display: grid;
  place-items: center;
  color: rgba(255,255,255,0.16);
  background:
    radial-gradient(circle at 60% 42%, rgba(226,142,16,0.45), transparent 22%),
    radial-gradient(circle at 84% 52%, rgba(255,189,49,0.22), transparent 18%),
    linear-gradient(135deg, #040607, #242928 52%, #070808 100%);
}

.solutions-page .banner-overlay {
  z-index: 1;
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
}

.solutions-page .banner-overlay::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(0,0,0,0.90) 0%, rgba(0,0,0,0.74) 28%, rgba(0,0,0,0.34) 58%, rgba(0,0,0,0.12) 100%),
    linear-gradient(180deg, rgba(0,0,0,0.10), rgba(0,0,0,0.35));
}

.solutions-page .banner-content {
  position: relative;
  z-index: 2;
  padding-top: 58px;
  padding-bottom: 28px;
}

.solutions-page .banner-content h1 {
  margin: 0 0 14px;
  font-size: clamp(2.25rem, 4vw, 3.25rem);
  line-height: 1.1;
  font-weight: 100;
  letter-spacing: -0.05em;
}

.solutions-page .banner-content p {
  margin: 0 0 14px;
  max-width: 620px;
  font-size: 18px;
  line-height: 1.6;
  font-weight: 700;
  color: rgba(255,255,255,0.96);
}

.solutions-page .banner-desc {
  max-width: 560px;
  margin-bottom: 30px;
  font-size: 14px;
  line-height: 2;
  font-weight: 500;
  color: rgba(255,255,255,0.86);
}

.solutions-page .banner .breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: rgba(255,255,255,0.86);
}

.solutions-page .banner .breadcrumb a:hover {
  color: #f0a500;
}

.solutions-page .banner .breadcrumb .sep svg {
  width: 14px;
  height: 14px;
  display: block;
}

.industry-solutions {
  width: min(1380px, calc(100% - 64px));
  margin: 0 auto;
  padding: 58px 0 38px;
  display: grid;
  grid-template-columns: 360px minmax(0, 1fr);
  gap: 82px;
  align-items: start;
}

.section-intro {
  position: sticky;
  top: 98px;
  width: 360px;
  max-width: 360px;
  padding-top: 44px;
}

.section-intro h2,
.case-heading h2,
.why-content h2,
.bottom-cta h2,
.process-section h2 {
  margin: 0;
  font-size: 32px;
  line-height: 1.18;
  font-weight: 650;
  letter-spacing: -0.055em;
  color: #151515;
}

.gold-line { display: block; width: 31px; height: 4px; margin: 17px 0 28px; border-radius: 99px; background: #e5ad21; }
.section-intro p { margin: 0 0 36px; max-width: 360px; font-size: 14px; line-height: 2.05; color: #696969; }

.outline-cta,
.primary-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 45px;
  padding: 0 19px;
  border-radius: 2px;
  font-size: 14px;
  font-weight: 800;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.outline-cta { border: 1px solid #e5ad21; color: #111; background: #fff; }
.primary-cta { min-width: 187px; background: #efad1d; color: #111; box-shadow: 0 13px 25px rgba(229,173,33,0.22); }
.outline-cta:hover,
.primary-cta:hover { transform: translateY(-2px); box-shadow: 0 15px 28px rgba(20,20,20,0.1); }

.solution-card-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 26px 22px; align-items: start; transform: translateX(34px); }
.solution-card { position: relative; overflow: hidden; align-self: start; height: auto !important; min-height: 0 !important; border: 1px solid rgba(0,0,0,0.08); border-radius: 6px; background: #fff; box-shadow: 0 12px 28px rgba(30,30,30,0.055); transition: transform 220ms ease, box-shadow 220ms ease; }
.solution-card:hover { transform: translateY(-5px); box-shadow: 0 18px 38px rgba(30,30,30,0.11); }
.solution-card > .img-slot { height: 180px; background: linear-gradient(135deg, #202522, #ece7dc); }
.card-icon { position: absolute; top: 122px; left: 29px; width: 57px; height: 57px; border-radius: 50%; display: grid; place-items: center; background: #fff; color: #e5ad21; box-shadow: 0 8px 20px rgba(20,20,20,0.14); }
.card-icon svg { stroke-width: 1.85; }
.solution-card-body { height: auto !important; min-height: 0 !important; padding: 40px 28px 12px; }
.solution-card-body h3 { margin: 0 0 12px; font-size: 16px; font-weight: 500; color: #151515; }
.solution-card-body p { margin: 0 0 8px; font-size: 13px; line-height: 1.75; color: #666; }
.solution-card-body a { display: inline-flex; line-height: 1; margin-bottom: 0; color: #111; font-size: 20px; transition: color 180ms ease, padding-left 180ms ease; }
.solution-card-body a:hover { color: #d39a13; padding-left: 5px; }

.process-section { padding: 52px clamp(48px, 6vw, 76px) 58px; background: #f7f7f7; text-align: center; }
.process-section h2 { color: #141414; }
.process-row { max-width: 1210px; margin: 45px auto 0; display: grid; grid-template-columns: 1fr 22px 1fr 22px 1fr 22px 1fr 22px 1fr; gap: 19px; align-items: center; text-align: left; }
.process-row article { display: grid; grid-template-columns: 43px 1fr; column-gap: 13px; align-items: start; }
.process-row article span { grid-row: span 2; width: 31px; height: 31px; display: grid; place-items: center; border-radius: 50%; background: #efad1d; color: #fff; font-size: 12px; font-weight: 900; }
.process-row h3 { margin: 0 0 9px; font-size: 15px; font-weight: 850; color: #222; }
.process-row p { grid-column: 2; margin: 0; font-size: 12px; line-height: 1.72; color: #555; }
.process-row i { font-style: normal; color: #111; font-size: 21px; text-align: center; }

.case-section { width: min(1204px, calc(100% - 96px)); margin: 0 auto; padding: 47px 0 55px; }
.case-heading { display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px; }
.case-heading a { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; color: #4f4f4f; transition: color 180ms ease; }
.case-heading a:hover { color: #d39a13; }
.case-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 26px; }
.case-card { min-height: 164px; display: grid; grid-template-columns: 172px 1fr; overflow: hidden; border: 1px solid rgba(0,0,0,0.08); border-radius: 4px; background: #fff; box-shadow: 0 10px 26px rgba(30,30,30,0.045); }
.case-card > .img-slot { min-height: 164px; }
.case-card div:not(.img-slot) { padding: 23px 20px 14px; }
.case-card h3 { margin: 0 0 15px; font-size: 16px; font-weight: 820; color: #202020; }
.case-card p { margin: 0 0 16px; font-size: 12px; line-height: 1.85; color: #666; }
.case-card a { display: inline-flex; align-items: center; gap: 7px; font-size: 13px; font-weight: 800; color: #111; }
.case-card a svg { color: #d39a13; }

.why-section { position: relative; min-height: 255px; overflow: hidden; color: #fff; background: #05080a; }
.why-section > .img-slot { position: absolute; inset: 0; background: radial-gradient(circle at 86% 36%, rgba(229,142,19,0.4), transparent 20%), linear-gradient(110deg, #05080a, #151b1c 53%, #060809); }
.why-overlay { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(0,0,0,0.9) 0%, rgba(0,0,0,0.78) 44%, rgba(0,0,0,0.32) 100%); }
.why-content { position: relative; z-index: 2; width: min(1204px, calc(100% - 96px)); margin: 0 auto; padding: 42px 0 39px; }
.why-content h2 { color: #fff; }
.why-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; margin-top: 22px; }
.why-grid article { min-height: 88px; padding: 0 34px 0 0; display: grid; grid-template-columns: 49px 1fr; column-gap: 17px; align-items: start; border-right: 1px solid rgba(255,255,255,0.23); }
.why-grid article:not(:first-child) { padding-left: 34px; }
.why-grid article:last-child { border-right: 0; }
.why-grid svg { color: #e5ad21; stroke-width: 1.65; grid-row: span 2; }
.why-grid h3 { margin: 5px 0 9px; font-size: 16px; font-weight: 850; color: #fff; }
.why-grid p { grid-column: 2; margin: 0; font-size: 13px; line-height: 1.78; color: rgba(255,255,255,0.76); }

.bottom-cta { min-height: 125px; width: min(1018px, calc(100% - 96px)); margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 36px; background: #fff; }
.bottom-cta h2 { font-size: 24px; margin-bottom: 10px; }
.bottom-cta p { margin: 0; font-size: 14px; color: #6b6b6b; }

@media (max-width: 1180px) {
  .industry-solutions { grid-template-columns: 260px 1fr; gap: 36px; }
  .solution-card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .process-row { grid-template-columns: 1fr; text-align: center; max-width: 620px; }
  .process-row i { transform: rotate(90deg); }
  .process-row article { text-align: left; }
  .case-grid { grid-template-columns: 1fr; }
  .case-card { grid-template-columns: 210px 1fr; }
}

@media (max-width: 900px) {
  .hero-copy,
  .industry-solutions,
  .case-section,
  .why-content,
  .bottom-cta { width: calc(100% - 44px); }
  .industry-solutions { grid-template-columns: 1fr; gap: 28px; padding-top: 42px; }
  .section-intro { position: static; padding-top: 0; }
  .section-intro p { max-width: 620px; }
  .why-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px 0; }
  .why-grid article:nth-child(2) { border-right: 0; }
  .bottom-cta { flex-direction: column; align-items: flex-start; justify-content: center; padding: 30px 0; }
}

@media (max-width: 620px) {
  .solutions-page .banner { min-height: 360px; }
  .solution-card-grid { grid-template-columns: 1fr; }
  .case-card { grid-template-columns: 1fr; }
  .case-card > .img-slot { min-height: 180px; }
  .why-grid { grid-template-columns: 1fr; }
  .why-grid article,
  .why-grid article:not(:first-child) { padding-left: 0; border-right: 0; }
}

/* 纯静态版本补充：CSS 图标、缺图占位显示与无依赖交互。 */
.img-slot:not(.missing-image) .img-path-label { display: none; }
.search-glyph { position: relative; display: inline-block; width: 19px; height: 19px; border: 2px solid currentColor; border-radius: 50%; }
.search-glyph::after { content: ""; position: absolute; width: 8px; height: 2px; right: -6px; bottom: -3px; background: currentColor; transform: rotate(45deg); border-radius: 99px; }
.menu-lines, .menu-lines::before, .menu-lines::after { display: block; width: 22px; height: 2px; background: currentColor; border-radius: 99px; }
.menu-lines { position: relative; }
.menu-lines::before, .menu-lines::after { content: ""; position: absolute; left: 0; }
.menu-lines::before { top: -7px; }
.menu-lines::after { top: 7px; }
.css-flask { position: relative; }
.css-flask::before { content: ""; position: absolute; left: 10px; top: 3px; width: 13px; height: 19px; border: 3px solid #71a90c; border-bottom: 0; border-radius: 3px 3px 0 0; }
.css-flask::after { content: ""; position: absolute; left: 4px; bottom: 4px; width: 26px; height: 22px; border: 3px solid #71a90c; border-radius: 2px 2px 13px 13px; transform: perspective(20px) rotateX(18deg); }
.card-icon::before, .card-icon::after, .why-icon::before, .why-icon::after { content: ""; position: absolute; box-sizing: border-box; }
.card-icon, .why-icon { position: relative; }
.car-icon::before { left: 12px; top: 23px; width: 33px; height: 14px; border: 2px solid #e5ad21; border-radius: 9px 9px 4px 4px; }
.car-icon::after { left: 17px; top: 35px; width: 6px; height: 6px; border: 2px solid #e5ad21; border-radius: 50%; box-shadow: 18px 0 0 -2px #fff, 18px 0 0 0 #e5ad21; }
.hook-icon::before { left: 17px; top: 12px; width: 21px; height: 31px; border: 3px solid #e5ad21; border-left: 0; border-bottom: 0; border-radius: 0 16px 0 0; transform: rotate(20deg); }
.hook-icon::after { left: 24px; top: 34px; width: 18px; height: 2px; background: #e5ad21; transform: rotate(-18deg); }
.factory-icon::before { left: 13px; top: 21px; width: 34px; height: 22px; border: 2px solid #e5ad21; border-top: 0; }
.factory-icon::after { left: 15px; top: 13px; width: 30px; height: 16px; background: linear-gradient(135deg, transparent 0 27%, #e5ad21 28% 32%, transparent 33% 47%, #e5ad21 48% 52%, transparent 53%); border-bottom: 2px solid #e5ad21; }
.energy-icon::before { left: 25px; top: 10px; width: 8px; height: 35px; background: #e5ad21; border-radius: 99px 99px 0 0; }
.energy-icon::after { left: 13px; top: 31px; width: 32px; height: 2px; background: #e5ad21; box-shadow: 6px -10px 0 #e5ad21, 12px -18px 0 #e5ad21; transform: rotate(-28deg); }
.metallurgy-icon::before { left: 15px; top: 28px; width: 30px; height: 14px; border: 2px solid #e5ad21; border-radius: 0 0 9px 9px; }
.metallurgy-icon::after { left: 18px; top: 15px; width: 24px; height: 18px; border: 2px solid #e5ad21; border-bottom: 0; border-radius: 12px 12px 0 0; }
.mining-icon::before { left: 15px; top: 21px; width: 30px; height: 18px; border: 2px solid #e5ad21; transform: skew(-9deg); }
.mining-icon::after { left: 19px; top: 38px; width: 6px; height: 6px; border: 2px solid #e5ad21; border-radius: 50%; box-shadow: 17px 0 0 -2px #fff, 17px 0 0 0 #e5ad21; }
.why-icon { width: 37px; height: 37px; display: block; grid-row: span 2; color: #e5ad21; }
.shield-icon::before { inset: 3px 7px; border: 2px solid #e5ad21; clip-path: polygon(50% 0, 100% 18%, 87% 76%, 50% 100%, 13% 76%, 0 18%); }
.lab-icon::before { left: 12px; top: 3px; width: 13px; height: 16px; border: 2px solid #e5ad21; border-bottom: 0; }
.lab-icon::after { left: 5px; top: 17px; width: 27px; height: 17px; border: 2px solid #e5ad21; border-radius: 0 0 12px 12px; }
.quality-icon::before { inset: 4px; border: 2px solid #e5ad21; border-radius: 50%; }
.quality-icon::after { left: 12px; top: 12px; width: 13px; height: 8px; border-left: 2px solid #e5ad21; border-bottom: 2px solid #e5ad21; transform: rotate(-45deg); }
.service-icon::before { left: 5px; top: 8px; width: 27px; height: 18px; border: 2px solid #e5ad21; border-radius: 15px 15px 6px 6px; }
.service-icon::after { left: 3px; top: 18px; width: 5px; height: 10px; background: #e5ad21; box-shadow: 26px 0 0 #e5ad21; }


/* 修正：六个解决方案卡片统一去除正文下方多余空白 */
.solution-card-grid {
  align-items: start !important;
}

.solution-card-grid > .solution-card,
.solution-card-grid > .solution-card.animate-on-scroll,
.solution-card-grid > .solution-card.animate-on-scroll.is-visible {
  align-self: start !important;
  display: block !important;
  height: auto !important;
  min-height: 0 !important;
}

.solution-card-grid > .solution-card .solution-card-body,
.solution-card-grid > .solution-card.animate-on-scroll .solution-card-body,
.solution-card-grid > .solution-card.animate-on-scroll.is-visible .solution-card-body {
  height: auto !important;
  min-height: 0 !important;
  padding-bottom: 12px !important;
}

.solution-card-grid > .solution-card .solution-card-body p,
.solution-card-grid > .solution-card.animate-on-scroll .solution-card-body p,
.solution-card-grid > .solution-card.animate-on-scroll.is-visible .solution-card-body p {
  min-height: 0 !important;
  margin-bottom: 8px !important;
}

.solution-card-grid > .solution-card .solution-card-body a,
.solution-card-grid > .solution-card.animate-on-scroll .solution-card-body a,
.solution-card-grid > .solution-card.animate-on-scroll.is-visible .solution-card-body a {
  display: inline-flex !important;
  line-height: 1 !important;
  margin-bottom: 0 !important;
}

/* 新增：解决方案卡片右下角“查看详情”黄色描边按钮 */
.solution-card-grid > .solution-card .solution-card-body,
.solution-card-grid > .solution-card.animate-on-scroll .solution-card-body,
.solution-card-grid > .solution-card.animate-on-scroll.is-visible .solution-card-body {
  position: relative !important;
  padding-bottom: 60px !important;
}

.solution-card-grid > .solution-card .solution-card-body p,
.solution-card-grid > .solution-card.animate-on-scroll .solution-card-body p,
.solution-card-grid > .solution-card.animate-on-scroll.is-visible .solution-card-body p {
  margin-bottom: 0 !important;
}

.solution-card-grid > .solution-card .solution-card-body .solution-card-detail,
.solution-card-grid > .solution-card.animate-on-scroll .solution-card-body .solution-card-detail,
.solution-card-grid > .solution-card.animate-on-scroll.is-visible .solution-card-body .solution-card-detail {
  position: absolute !important;
  right: 22px !important;
  bottom: 18px !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 6px !important;
  min-width: 92px !important;
  height: 34px !important;
  padding: 0 14px !important;
  border: 1px solid #e5ad21 !important;
  border-radius: 2px !important;
  background: #fff !important;
  color: #111 !important;
  font-size: 13px !important;
  font-weight: 800 !important;
  line-height: 1 !important;
  letter-spacing: 0.02em !important;
  box-shadow: 0 8px 18px rgba(229, 173, 33, 0.10) !important;
  transition: transform 180ms ease, box-shadow 180ms ease, background-color 180ms ease, color 180ms ease, padding 180ms ease !important;
}

.solution-card-grid > .solution-card .solution-card-body .solution-card-detail::after,
.solution-card-grid > .solution-card.animate-on-scroll .solution-card-body .solution-card-detail::after,
.solution-card-grid > .solution-card.animate-on-scroll.is-visible .solution-card-body .solution-card-detail::after {
  content: "→";
  display: inline-block;
  font-size: 14px;
  line-height: 1;
  transform: translateX(0);
  transition: transform 180ms ease;
}

.solution-card-grid > .solution-card .solution-card-body .solution-card-detail:hover,
.solution-card-grid > .solution-card.animate-on-scroll .solution-card-body .solution-card-detail:hover,
.solution-card-grid > .solution-card.animate-on-scroll.is-visible .solution-card-body .solution-card-detail:hover {
  padding-left: 14px !important;
  transform: translateY(-2px) !important;
  background: #e5ad21 !important;
  color: #111 !important;
  box-shadow: 0 12px 24px rgba(229, 173, 33, 0.26) !important;
}

.solution-card-grid > .solution-card .solution-card-body .solution-card-detail:hover::after,
.solution-card-grid > .solution-card.animate-on-scroll .solution-card-body .solution-card-detail:hover::after,
.solution-card-grid > .solution-card.animate-on-scroll.is-visible .solution-card-body .solution-card-detail:hover::after {
  transform: translateX(4px);
}