/* ==========================================================================
   OLGbrand 欧兰格 · 品牌活动全案一站式
   v2 · 按《欧兰格OLG brand官网提示词》：B端极简商务 · 深灰+白 · 无花哨动效
   ========================================================================== */

:root {
  --ink: #212121;
  --ink-2: #4d4d4d;
  --ink-3: #a9a9a9;
  --line: #f2f2f2;
  --line-2: #e6e6e6;
  --bg: #ffffff;
  --bg-soft: #fafafa;
  --accent: #1a3a6b;      /* 品牌深蓝 */
  --yellow: #ffe600;
  --wrap: 1200px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; border: 0; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

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

/* ---------- 按钮 ---------- */
.btn {
  display: inline-block; padding: 12px 30px; font-size: 14px; border-radius: 2px;
  border: 1px solid transparent; transition: .2s; cursor: pointer; font-family: inherit;
}
.btn-solid { background: var(--yellow); color: var(--ink); font-weight: 500; }
.btn-solid:hover { background: #fff; }
.btn-dark { background: var(--ink); color: #fff; }
.btn-dark:hover { background: #000; }
.btn-line { border-color: var(--ink); color: var(--ink); background: transparent; }
.btn-line:hover { background: var(--ink); color: #fff; }
.btn-yellow { background: var(--yellow); color: var(--ink); font-weight: 500; border: 0; }
.btn-yellow:hover { background: #fff; }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: #fff; border-bottom: 1px solid var(--line);
}
.site-header .inner {
  max-width: var(--wrap); margin: 0 auto; padding: 0 24px;
  height: 68px; display: flex; align-items: center; gap: 36px;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand img { height: 23px; width: auto; }

.nav { display: flex; align-items: center; gap: 32px; flex: 1; justify-content: center; }
.nav a { font-size: 14.5px; color: var(--ink); padding: 5px 0; border-bottom: 2px solid transparent; }
.nav a:hover { border-bottom-color: var(--ink); }
.nav a.is-active { border-bottom-color: var(--ink); font-weight: 500; }
.nav-phone {
  font-size: 13.5px; color: var(--ink); border: 1px solid var(--line-2);
  padding: 6px 14px; border-radius: 2px; white-space: nowrap;
}
.nav-phone:hover { border-color: var(--ink); }

.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 8px; margin-left: auto; }
.nav-toggle span { display: block; width: 22px; height: 1.5px; background: var(--ink); margin: 5px 0; }

/* ---------- 首屏轮播 1920×600 ---------- */
.hero { position: relative; background: #111; overflow: hidden; }
.hero-slides { position: relative; }
.hero-slide {
  position: absolute; inset: 0; opacity: 0; transition: opacity .8s ease;
}
.hero-slide.is-on { opacity: 1; position: relative; }
.hero-slide img { width: 100%; height: 600px; object-fit: cover; display: block; }
.hero-slide::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(0,0,0,.66) 0%, rgba(0,0,0,.38) 48%, rgba(0,0,0,.10) 100%);
}
.hero-copy {
  position: absolute; z-index: 3; inset: 0; display: flex; align-items: center;
  color: #fff; pointer-events: none;
}
.hero-copy .wrap { width: 100%; }
.hero-copy h1 { font-size: 46px; line-height: 1.3; font-weight: 500; letter-spacing: .02em; }
.hero-copy p { font-size: 17px; color: rgba(255,255,255,.85); margin-top: 16px; }
.hero-copy .hero-btns { margin-top: 30px; pointer-events: auto; }
.hero-slide.is-center .hero-copy { justify-content: center; text-align: center; }
.hero-slide.is-center::after {
  background: linear-gradient(180deg, rgba(0,0,0,.42) 0%, rgba(0,0,0,.30) 60%, rgba(0,0,0,.48) 100%);
}

.hero-arrow {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 4;
  width: 46px; height: 46px; border: 0; background: none; cursor: pointer;
  color: rgba(255,255,255,.75); font-size: 28px; line-height: 1;
}
.hero-arrow:hover { color: #fff; }
.hero-arrow.prev { left: 20px; }
.hero-arrow.next { right: 20px; }
.hero-dots { position: absolute; bottom: 24px; left: 0; right: 0; z-index: 4; display: flex; justify-content: center; gap: 9px; }
.hero-dots button { width: 28px; height: 2px; border: 0; background: rgba(255,255,255,.4); cursor: pointer; padding: 0; }
.hero-dots button.is-on { background: #fff; }

/* ---------- 内页 Banner 1920×330 ---------- */
.page-banner { position: relative; background: #14161a; overflow: hidden; }
.page-banner img { width: 100%; height: 300px; object-fit: cover; opacity: .62; }
.page-banner .copy {
  position: absolute; inset: 0; display: flex; align-items: center; color: #fff;
  background: linear-gradient(90deg, rgba(10,12,16,.72) 0%, rgba(10,12,16,.34) 55%, rgba(10,12,16,.10) 100%);
}
.page-banner h1 { font-size: 34px; font-weight: 500; letter-spacing: .02em; }
.page-banner p { font-size: 15px; color: rgba(255,255,255,.82); margin-top: 10px; }

/* ---------- 通用板块 ---------- */
.section { padding: 70px 0; }
.section.tight { padding: 46px 0; }
.section-head { text-align: center; margin-bottom: 42px; }
.section-head h2 { font-size: 27px; font-weight: 500; letter-spacing: .02em; }
.section-head .sub { font-size: 12px; color: var(--ink-3); letter-spacing: .24em; margin-top: 8px; text-transform: uppercase; }
.section-head p { font-size: 14.5px; color: var(--ink-2); margin-top: 12px; }
.more-row { text-align: center; margin-top: 46px; }
.text-more { font-size: 14px; color: var(--ink-2); border-bottom: 1px solid var(--ink-3); padding-bottom: 2px; }
.text-more:hover { color: var(--ink); border-bottom-color: var(--ink); }

/* ---------- 筛选标签 ---------- */
.filter-tabs { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-bottom: 38px; }
.filter-tabs button {
  background: none; border: 1px solid var(--line-2); padding: 8px 22px;
  font-size: 13.5px; color: var(--ink-2); cursor: pointer; font-family: inherit; border-radius: 2px; transition: .2s;
}
.filter-tabs button:hover { border-color: var(--ink); color: var(--ink); }
.filter-tabs button.is-on { background: var(--ink); border-color: var(--ink); color: #fff; }

/* ---------- 案例卡 600×342 2列 ---------- */
.case-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 34px; }
.case-card { display: block; }
.case-card .thumb { overflow: hidden; background: var(--line); aspect-ratio: 600 / 342; }
.case-card img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.case-card.is-extra { display: none; }
.case-card.is-extra.is-shown { display: block; }
.case-card:hover img { transform: scale(1.03); }
.case-card .info { display: flex; align-items: baseline; justify-content: space-between; gap: 14px; margin-top: 14px; }
.case-card .t { font-size: 15.5px; font-weight: 500; flex: 1 1 auto; min-width: 0; }
.case-card .c { font-size: 12px; color: var(--ink-3); line-height: 1.45; text-align: right; flex: 0 1 auto; max-width: 56%; }

/* ---------- 业务六模块 ---------- */
.mini-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 24px; }
.mini-grid.cols-2 { grid-template-columns: repeat(2, minmax(0,1fr)); }
.mini-svc {
  border: 1px solid var(--line-2); background: #fff; padding: 28px 26px;
  display: flex; gap: 18px; align-items: flex-start; transition: .25s;
}
.mini-svc:hover { border-color: var(--ink); }
.mini-svc .ic { width: 40px; height: 40px; flex: 0 0 40px; color: var(--accent); }
.mini-svc .ic svg { width: 100%; height: 100%; }
.mini-svc h3 { font-size: 16.5px; font-weight: 500; }
.mini-svc p { font-size: 13.5px; color: var(--ink-2); margin-top: 8px; }

/* ---------- 配套资源 ---------- */
.res-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 18px; }
.res-card { border: 1px solid var(--line-2); background: #fff; padding: 22px 20px; transition: .25s; }
.res-card:hover { border-color: var(--ink); }
.res-card h3 { font-size: 15px; font-weight: 500; }
.res-card p { font-size: 13px; color: var(--ink-2); margin-top: 8px; }

/* ---------- 数字条 ---------- */
.stats { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 20px; text-align: center; margin-top: 52px; }
.stats .n { font-size: 34px; font-weight: 500; letter-spacing: .01em; }
.stats .l { font-size: 13px; color: var(--ink-3); margin-top: 8px; }

/* ---------- 客户 logo 墙 ---------- */
.logo-wall { display: grid; grid-template-columns: repeat(7, minmax(0,1fr)); gap: 14px; }
.logo-wall .cell {
  border: 1px solid var(--line); height: 84px; display: flex;
  align-items: center; justify-content: center; padding: 14px; background: #fff;
}
.logo-wall img { height: 30px; width: auto; max-width: 86%; object-fit: contain; }

/* ---------- 新闻 ---------- */
.news-list { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 32px 36px; }
.news-item { display: flex; gap: 18px; }
.news-item .pic { width: 210px; flex: 0 0 210px; overflow: hidden; background: var(--line); aspect-ratio: 600 / 400; }
.news-item .pic img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.news-item:hover .pic img { transform: scale(1.04); }
.news-item .body { min-width: 0; }
.news-item .d { font-size: 12px; color: var(--ink-3); }
.news-item h3 { font-size: 15.5px; font-weight: 500; margin: 7px 0 8px; line-height: 1.5; }
.news-item p { font-size: 13px; color: var(--ink-2); display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.news-item:hover h3 { color: var(--accent); }

/* ---------- 面包屑 ---------- */
.crumb { font-size: 13px; color: var(--ink-3); padding: 20px 0; }
.crumb a:hover { color: var(--ink); }
.crumb span { margin: 0 7px; }

/* ---------- 文章正文 ---------- */
.article { max-width: 820px; margin: 0 auto; padding: 30px 24px 60px; }
.article h1 { font-size: 27px; line-height: 1.45; font-weight: 500; margin-bottom: 16px; }
.article .meta { font-size: 13px; color: var(--ink-3); padding-bottom: 22px; border-bottom: 1px solid var(--line); margin-bottom: 30px; }
.article h2 { font-size: 19px; font-weight: 500; margin: 34px 0 14px; padding-left: 12px; border-left: 3px solid var(--yellow); }
.article h3 { font-size: 16px; font-weight: 500; margin: 24px 0 10px; }
.article p { margin-bottom: 15px; color: #2e2e2e; }
.article ul, .article ol { margin: 0 0 16px 22px; }
.article ul li { list-style: disc; margin-bottom: 8px; color: #2e2e2e; }
.article ol li { list-style: decimal; margin-bottom: 8px; color: #2e2e2e; }
.article strong { font-weight: 500; color: var(--ink); }
.article blockquote {
  border-left: 3px solid var(--line-2); padding: 4px 0 4px 18px; margin: 20px 0;
  color: var(--ink-2); font-size: 14.5px;
}
.article table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 14px; }
.article th, .article td { border: 1px solid var(--line-2); padding: 10px 12px; text-align: left; }
.article th { background: var(--bg-soft); font-weight: 500; }
.article .cta-box { margin-top: 40px; border: 1px solid var(--ink); padding: 26px 28px; background: var(--bg-soft); }
.article .cta-box h3 { margin: 0 0 8px; font-size: 17px; }
.article .cta-box p { font-size: 14px; color: var(--ink-2); margin-bottom: 16px; }
.tag-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 30px; }
.tag-row span { font-size: 12px; color: var(--ink-2); background: var(--bg-soft); border: 1px solid var(--line); padding: 3px 10px; }
.article-more li { margin-bottom: 10px; }
.article-more a { font-size: 14.5px; color: var(--ink-2); }
.article-more a:hover { color: var(--ink); }

/* ---------- 两栏 ---------- */
.two-col { display: grid; grid-template-columns: 1.05fr .95fr; gap: 50px; align-items: center; }
.two-col p { margin-bottom: 12px; }

/* ---------- 表单 ---------- */
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 16px; }
.form-grid .full { grid-column: 1 / -1; }
.field label { display: block; font-size: 13px; color: var(--ink-2); margin-bottom: 7px; }
.field input, .field textarea {
  width: 100%; border: 1px solid var(--line-2); background: #fff; padding: 11px 13px;
  font-size: 14px; font-family: inherit; color: var(--ink); border-radius: 0;
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--ink); }
.field textarea { min-height: 110px; resize: vertical; }
.form-note { font-size: 12px; color: var(--ink-3); margin-top: 12px; text-align: left; }

/* 联系页表单：与首页一致的深灰底 */
/* 浅色表单卡片（联系页专用，与全站白底统一） */
.form-card { background: #fff; border: 1px solid var(--line); padding: 40px 36px; }
.form-card h2 { font-size: 21px; font-weight: 500; }
.form-card .sub { font-size: 14px; color: var(--ink-2); margin: 8px 0 24px; }

.dark-panel { background: #14161a; color: #fff; padding: 40px 36px; }
.dark-panel h2 { font-size: 21px; font-weight: 500; }
.dark-panel .sub { font-size: 14px; color: rgba(255,255,255,.6); margin: 8px 0 24px; }
.dark-panel .field label { color: rgba(255,255,255,.7); }
.dark-panel .field input, .dark-panel .field textarea {
  background: rgba(255,255,255,.06); border-color: rgba(255,255,255,.2); color: #fff;
}
.dark-panel .field input:focus, .dark-panel .field textarea:focus { border-color: #fff; }
.dark-panel .form-note { color: rgba(255,255,255,.4); }

/* 文章内文配图 */
.art-fig { margin: 30px 0; }
.art-fig img { display: block; width: 100%; border-radius: 10px; }
.art-fig figcaption { font-size: 12.5px; color: var(--ink-3); text-align: center; margin-top: 10px; }

/* 图片防盗（不影响 SEO：<img> 标签与 alt 原样保留，蜘蛛照常抓取） */
img { -webkit-user-drag: none; user-select: none; }

/* ---------- 统一咨询转化模块 ---------- */
.convert { padding: 70px 0; background: var(--bg-soft); border-top: 1px solid var(--line); }
.convert.dark { background: #14161a; color: #fff; border-top: 0; }
.convert-grid { display: grid; grid-template-columns: 1fr; gap: 34px; max-width: 800px; margin: 0 auto; }
.convert-copy { text-align: center; }
.convert-copy h2 { font-size: 27px; font-weight: 500; }
.convert-copy p { font-size: 16px; margin-top: 16px; }
.convert-copy .dim { font-size: 13.5px; color: var(--ink-3); margin-top: 10px; }
.convert.dark .dim { color: rgba(255,255,255,.55); }
.convert.dark .field label { color: rgba(255,255,255,.7); }
.convert.dark .field input, .convert.dark .field textarea {
  background: rgba(255,255,255,.06); border-color: rgba(255,255,255,.2); color: #fff;
}
.convert.dark .field input:focus, .convert.dark .field textarea:focus { border-color: #fff; }
.convert.dark .form-note { color: rgba(255,255,255,.4); }

/* ---------- FAQ ---------- */
.faq-wrap { max-width: 860px; }
.faq { border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); padding: 18px 0; }
.faq summary { font-size: 15px; font-weight: 500; cursor: pointer; list-style: none; position: relative; padding-right: 30px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 4px; top: 0; color: var(--ink-3); font-size: 18px; }
.faq details[open] summary::after { content: "−"; }
.faq .ans { font-size: 14px; color: var(--ink-2); padding-top: 12px; }

/* ---------- 关于我们 ---------- */
.diff-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 20px; }
.diff-card { border: 1px solid var(--line-2); background: #fff; padding: 26px 26px; }
.diff-card h3 { font-size: 16px; font-weight: 500; }
.diff-card p { font-size: 13.5px; color: var(--ink-2); margin-top: 10px; }
.about-news li {
  display: flex; justify-content: space-between; gap: 20px; align-items: baseline;
  border-bottom: 1px solid var(--line); padding: 13px 0; max-width: 860px; margin: 0 auto;
}
.about-news a { font-size: 14.5px; }
.about-news a:hover { color: var(--accent); }
.about-news span { font-size: 12.5px; color: var(--ink-3); white-space: nowrap; }

/* ---------- 关于页 · 欧兰格观点 ---------- */
.viewpoint { text-align: center; margin: 4px 0 48px; }
.viewpoint .vp-label { font-size: 27px; font-weight: 500; letter-spacing: .02em; margin-bottom: 24px; }
.viewpoint .vp-line { font-size: 46px; line-height: 1.55; font-weight: 500; letter-spacing: .05em; }

/* ---------- 联系页 ---------- */
.contact-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 60px; align-items: start; }
.contact-side .item { border-top: 2px solid var(--ink); padding: 16px 0 26px; }
.contact-side .k { font-size: 12px; color: var(--ink-3); letter-spacing: .1em; }
.contact-side .v { font-size: 17px; margin-top: 10px; font-weight: 500; }
.contact-side .v a:hover { color: var(--accent); }
.contact-side .qr img { width: 132px; height: 132px; object-fit: cover; border: 1px solid var(--line-2); padding: 6px; background: #fff; }

/* ---------- 页脚 ---------- */
.site-footer { border-top: 1px solid var(--line); background: var(--bg-soft); padding: 50px 0 26px; margin-top: 70px; }
.convert + .site-footer { margin-top: 0; }
.footer-top { display: grid; grid-template-columns: 1.4fr 1fr .9fr 1fr; gap: 34px; padding-bottom: 34px; }
.footer-top h4 { font-size: 13px; font-weight: 500; margin-bottom: 14px; }
.footer-top li { font-size: 13px; color: var(--ink-2); margin-bottom: 9px; }
.footer-top a:hover { color: var(--ink); }
.footer-brand p { font-size: 13px; color: var(--ink-2); margin-top: 12px; max-width: 330px; }
.footer-qr img { width: 96px; height: 96px; object-fit: cover; border: 4px solid #fff; box-shadow: 0 0 0 1px var(--line-2); }
.footer-bottom {
  border-top: 1px solid var(--line-2); padding-top: 20px;
  font-size: 12px; color: var(--ink-3); display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
}
.footer-bottom a { color: var(--ink-3); }
.footer-bottom a:hover { color: var(--ink); }

/* ---------- 回到顶部 ---------- */
.to-top {
  position: fixed; right: 26px; bottom: 34px; z-index: 90;
  width: 42px; height: 42px; border-radius: 50%; border: 0; cursor: pointer;
  background: var(--ink); color: #fff; font-size: 17px; line-height: 1;
  opacity: 0; visibility: hidden; transition: .3s;
}
.to-top.is-on { opacity: 1; visibility: visible; }
.to-top:hover { background: #000; }

/* ---------- 响应式 ---------- */
@media (max-width: 1000px) {
  .case-grid, .news-list, .mini-grid, .mini-grid.cols-2, .two-col,
  .convert-grid, .contact-layout, .diff-grid { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, minmax(0,1fr)); gap: 28px 12px; }
  .logo-wall { grid-template-columns: repeat(4, minmax(0,1fr)); }
  .res-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .nav-phone { display: none; }
}
@media (max-width: 760px) {
  body { font-size: 14.5px; }
  .nav { display: none; }
  .nav-toggle { display: block; }
  .site-header.is-open .nav {
    display: flex; flex-direction: column; align-items: flex-start; gap: 0;
    position: absolute; left: 0; right: 0; top: 68px; background: #fff;
    border-bottom: 1px solid var(--line-2); padding: 8px 24px 18px;
  }
  .site-header.is-open .nav a { width: 100%; padding: 12px 0; border-bottom: 1px solid var(--line); }
  .hero-slide img { height: 380px; }
  .hero-copy h1 { font-size: 27px; }
  .hero-copy p { font-size: 14px; }
  .hero-arrow { display: none; }
  .section { padding: 48px 0; }
  .page-banner img { height: 210px; }
  .page-banner h1 { font-size: 25px; }
  .logo-wall { grid-template-columns: repeat(3, minmax(0,1fr)); }
  .res-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; gap: 24px; }
  .news-list { grid-template-columns: repeat(2, minmax(0,1fr)); gap: 22px 14px; }
  .news-item { flex-direction: column; gap: 10px; }
  .news-item .pic { width: 100%; flex: none; }
  .news-item h3 { font-size: 14.5px; margin: 6px 0 0; }
  .news-item p { font-size: 12.5px; -webkit-line-clamp: 2; }
  .news-item .d { font-size: 11.5px; }
  .article h1 { font-size: 22px; }
  .convert-grid { gap: 30px; }
  .form-grid { grid-template-columns: 1fr; }
  .dark-panel, .form-card { padding: 28px 22px; }
  .viewpoint .vp-label { font-size: 20px; margin-bottom: 14px; }
  .viewpoint .vp-line { font-size: 25px; }
}

/* ==========================================================================
   案例详情页（灰色信息头 + 两列图文 730×410 + 收录源标签）
   ========================================================================== */
.case-head { background: var(--bg-soft); border-bottom: 1px solid var(--line); padding: 34px 0 30px; }
.case-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.case-tags span { font-size: 12px; color: var(--ink-2); border: 1px solid var(--line-2); background: #fff; padding: 4px 12px; }
.case-head h1 { font-size: 29px; line-height: 1.4; font-weight: 500; margin-top: 14px; max-width: 940px; letter-spacing: .01em; }
.case-head h1 .h1-sub { display: block; font-size: 15px; color: var(--ink-2); font-weight: 400; margin-top: 8px; letter-spacing: .02em; }
.case-meta {
  display: flex; flex-wrap: wrap; gap: 8px 28px;
  margin-top: 22px; border-top: 1px solid var(--line-2); padding-top: 16px;
}
.case-meta li { font-size: 13.5px; color: var(--ink); min-width: 0; }
.case-meta b { display: inline; font-size: 12px; color: var(--ink-3); font-weight: 400; margin-right: 10px; letter-spacing: .06em; }

.case-body { padding-top: 44px; padding-bottom: 6px; max-width: 1120px; }
.case-body p { margin-bottom: 18px; color: #2e2e2e; }
.case-body p.lead { font-size: 16.5px; line-height: 1.85; color: var(--ink); }
.case-imgs { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 22px; margin: 28px 0 34px; }
.case-imgs figure { background: var(--line); aspect-ratio: 730 / 410; overflow: hidden; }
.case-imgs img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .5s ease; }
.case-imgs figure:hover img { transform: scale(1.02); }

.case-rel-head { font-size: 19px; font-weight: 500; margin-bottom: 20px; }
.case-cta {
  display: inline-block; font-size: 19px; font-weight: 500; color: var(--ink);
  margin-bottom: 24px; padding-bottom: 6px; border-bottom: 3px solid var(--yellow);
  transition: .2s;
}
.case-cta:hover { color: #000; border-bottom-color: var(--ink); }
.tag-cloud { display: flex; flex-wrap: wrap; gap: 10px; }
.tag-cloud a {
  font-size: 13.5px; color: var(--ink-2); border: 1px solid var(--line-2);
  background: #fff; padding: 9px 18px; transition: .2s;
}
.tag-cloud a:hover { border-color: var(--ink); color: var(--ink); }
.case-pager {
  display: flex; justify-content: space-between; gap: 20px;
  max-width: 1120px; margin: 36px auto 0; padding: 0 24px; font-size: 14px; color: var(--ink-2);
}
.case-pager a:hover { color: var(--ink); }

@media (max-width: 1000px) {
  .case-meta { grid-template-columns: repeat(2, minmax(0,1fr)); }
}
@media (max-width: 760px) {
  .case-head { padding: 24px 0 22px; }
  .case-head h1 { font-size: 21px; }
  .case-head h1 .h1-sub { font-size: 13px; }
  .case-meta { gap: 6px 18px; }
  .case-imgs { grid-template-columns: 1fr; gap: 14px; }
  .case-body { padding-top: 30px; }
  .case-pager { flex-direction: column; gap: 10px; }
}

/* ---------- GEO：案例页更新时间 + E³ 三段式 ---------- */
.case-head .update-time { font-size: 12px; color: var(--ink-3); margin: 10px 0 0; }
.case-extra { max-width: 900px; padding: 46px 0 8px; }
.case-extra h2 { font-size: 21px; font-weight: 600; margin: 30px 0 12px; padding-left: 12px; border-left: 4px solid var(--accent, #0abbb9); }
.case-extra p { font-size: 15px; line-height: 1.95; color: var(--ink-2); text-align: justify; }

/* ---------- 新闻中心分页 ---------- */
.pager { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 8px; margin-top: 52px; padding-top: 34px; border-top: 1px solid var(--line-2); }
.pager a,
.pager .pg { display: inline-flex; align-items: center; justify-content: center; min-width: 40px; height: 40px; padding: 0 14px; font-size: 13.5px; color: var(--ink-2); border: 1px solid var(--line-2); background: var(--bg); transition: color .2s, border-color .2s, background .2s; }
.pager a:hover { color: var(--accent); border-color: var(--accent); }
.pager .is-on { background: var(--accent); border-color: var(--accent); color: #fff; }
.pager .is-off { color: var(--ink-3); border-color: var(--line); cursor: not-allowed; }
.pager .pg-info { display: inline-flex; align-items: center; height: 40px; padding: 0 4px 0 10px; font-size: 13px; color: var(--ink-3); border: 0; }
@media (max-width: 760px) {
  .pager { margin-top: 38px; padding-top: 26px; gap: 6px; }
  .pager a, .pager .pg { min-width: 36px; height: 36px; padding: 0 10px; font-size: 13px; }
  .pager .pg-info { width: 100%; justify-content: center; height: auto; padding: 8px 0 0; }
}