/* ==========================================================================
   公司官网 Demo · 公共样式
   说明：本文件为需求演示用原型样式，仅体现结构与交互逻辑
   图片区域统一使用 .ph 占位块，标注建议尺寸与用途
   ========================================================================== */

:root {
  --c-primary: #1a4fd6;
  --c-primary-dark: #123a9e;
  --c-ink: #14161a;
  --c-body: #4a5058;
  --c-muted: #8b919a;
  --c-line: #e5e8ec;
  --c-bg: #ffffff;
  --c-bg-soft: #f6f7f9;
  --c-ph-bg: #eef0f3;
  --c-ph-line: #dfe3e8;
  --c-ph-text: #a6adb6;

  --nav-h: 72px;
  --maxw: 1280px;
  --radius: 10px;
  --shadow-sm: 0 2px 8px rgba(20, 22, 26, .06);
  --shadow-md: 0 8px 28px rgba(20, 22, 26, .10);
  --ease: cubic-bezier(.22, .61, .36, 1);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--c-body);
  background: var(--c-bg);
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea, select { font-family: inherit; font-size: 14px; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 40px; }

/* ---------- 占位块 ---------- */
.ph {
  position: relative;
  background-color: var(--c-ph-bg);
  background-image:
    repeating-linear-gradient(45deg,
      var(--c-ph-line) 0, var(--c-ph-line) 1px,
      transparent 1px, transparent 11px);
  border: 1px dashed var(--c-ph-line);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  color: var(--c-ph-text);
  font-size: 13px;
  letter-spacing: .5px;
  text-align: center;
  padding: 12px;
}
.ph::before {
  content: attr(data-label);
  white-space: pre-line;
  line-height: 1.6;
}
.ph.is-dark {
  background-color: #2a2e35;
  background-image: repeating-linear-gradient(45deg, #363b44 0, #363b44 1px, transparent 1px, transparent 11px);
  border-color: #3d434c;
  color: #7d8590;
}
.r-16-9  { aspect-ratio: 16 / 9; }
.r-4-3   { aspect-ratio: 4 / 3; }
.r-3-2   { aspect-ratio: 3 / 2; }
.r-1-1   { aspect-ratio: 1 / 1; }
.r-3-4   { aspect-ratio: 3 / 4; }
.r-21-9  { aspect-ratio: 21 / 9; }
.circle  { border-radius: 50%; }

/* 真实图片填充（替代 .ph 占位，不含斜纹与标注文字） */
.img-fit {
  width: 100%;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-color: #eef0f3;
}
.hero-bg {
  position: absolute; inset: 0;
  background-size: cover; background-position: center; background-repeat: no-repeat;
}

/* ---------- 通用文字 ---------- */
.sec { padding: 92px 0; }
.sec.soft { background: var(--c-bg-soft); }
.sec-head { margin-bottom: 44px; }
.sec-head.center { text-align: center; }
.sec-kicker {
  font-size: 12px; letter-spacing: 2px; text-transform: uppercase;
  color: var(--c-primary); font-weight: 600; margin-bottom: 12px;
}
.sec-title {
  font-size: 34px; line-height: 1.35; color: var(--c-ink);
  font-weight: 700; letter-spacing: -.5px;
}
.sec-sub { margin-top: 12px; color: var(--c-muted); font-size: 15px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 46px; padding: 0 28px; border-radius: 999px;
  font-size: 14px; font-weight: 500; letter-spacing: .5px;
  transition: all .25s var(--ease); white-space: nowrap;
}
.btn-primary { background: var(--c-primary); color: #fff; }
.btn-primary:hover { background: var(--c-primary-dark); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-ghost { border: 1px solid rgba(255,255,255,.55); color: #fff; }
.btn-ghost:hover { background: rgba(255,255,255,.14); }
.btn-line { border: 1px solid var(--c-line); color: var(--c-ink); background: #fff; }
.btn-line:hover { border-color: var(--c-primary); color: var(--c-primary); }
.btn-sm { height: 38px; padding: 0 20px; font-size: 13px; }

/* ==========================================================================
   顶部导航
   ========================================================================== */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 900;
  height: var(--nav-h);
  transition: background .3s var(--ease), box-shadow .3s var(--ease);
}
.nav.on-dark { background: transparent; }
.nav.on-dark .nav-link, .nav.on-dark .logo-txt { color: #fff; }
.nav.scrolled, .nav.solid {
  background: rgba(255,255,255,.94);
  backdrop-filter: saturate(180%) blur(12px);
  box-shadow: 0 1px 0 var(--c-line);
}
.nav.scrolled .nav-link, .nav.solid .nav-link,
.nav.scrolled .logo-txt, .nav.solid .logo-txt { color: var(--c-ink); }

.nav-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 0 40px; height: 100%;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.logo { display: flex; align-items: center; gap: 10px; }
.logo .ph { width: 34px; height: 34px; border-radius: 8px; font-size: 9px; padding: 2px; flex: none; }
.logo-txt { font-size: 18px; font-weight: 700; letter-spacing: 1px; color: var(--c-ink); transition: color .3s; }

.nav-menu { display: flex; align-items: center; gap: 4px; }
.nav-item { position: relative; }
.nav-link {
  display: flex; align-items: center; gap: 5px;
  height: var(--nav-h); padding: 0 18px;
  font-size: 15px; color: var(--c-ink); transition: color .2s;
}
.nav-link:hover, .nav-item.active > .nav-link { color: var(--c-primary); }
.nav-item.active > .nav-link { font-weight: 600; }
.nav-link .caret {
  width: 0; height: 0; border-left: 4px solid transparent; border-right: 4px solid transparent;
  border-top: 5px solid currentColor; opacity: .5; transition: transform .25s;
}
.nav-item:hover .caret { transform: rotate(180deg); }

.dropdown {
  position: absolute; top: var(--nav-h); left: 50%; transform: translate(-50%, 8px);
  min-width: 178px; background: #fff; border-radius: var(--radius);
  box-shadow: var(--shadow-md); border: 1px solid var(--c-line);
  padding: 8px; opacity: 0; visibility: hidden; transition: all .22s var(--ease);
}
.nav-item:hover .dropdown { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
.dropdown a {
  display: block; padding: 9px 14px; border-radius: 6px;
  font-size: 14px; color: var(--c-body); white-space: nowrap; transition: all .18s;
}
.dropdown a:hover { background: var(--c-bg-soft); color: var(--c-primary); padding-left: 18px; }

.nav-cta { display: flex; align-items: center; gap: 12px; }
.hamburger { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.hamburger span { display: block; width: 22px; height: 2px; background: var(--c-ink); transition: all .3s; }
.nav.on-dark:not(.scrolled) .hamburger span { background: #fff; }

/* 移动端抽屉 */
.drawer {
  position: fixed; inset: 0; z-index: 950; background: #fff;
  transform: translateX(100%); transition: transform .35s var(--ease);
  overflow-y: auto; padding: 80px 24px 40px;
}
.drawer.open { transform: translateX(0); }
.drawer-close { position: absolute; top: 22px; right: 22px; font-size: 30px; line-height: 1; color: var(--c-ink); }
.drawer-item { border-bottom: 1px solid var(--c-line); }
.drawer-top {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 4px; font-size: 17px; color: var(--c-ink); font-weight: 500;
}
.drawer-top .plus { font-size: 20px; color: var(--c-muted); transition: transform .3s; }
.drawer-item.open .plus { transform: rotate(45deg); }
.drawer-sub { max-height: 0; overflow: hidden; transition: max-height .35s var(--ease); }
.drawer-item.open .drawer-sub { max-height: 520px; }
.drawer-sub a { display: block; padding: 11px 4px 11px 18px; font-size: 15px; color: var(--c-body); }
.drawer-foot { margin-top: 28px; }
.drawer-foot .btn { width: 100%; }

/* ==========================================================================
   首页 · 首屏轮播
   ========================================================================== */
.hero { position: relative; height: 100vh; min-height: 620px; overflow: hidden; background: #1b1e24; }
.hero-slide {
  position: absolute; inset: 0; opacity: 0; transition: opacity .9s var(--ease);
  display: flex; align-items: center;
}
.hero-slide.active { opacity: 1; }
.hero-slide .ph { position: absolute; inset: 0; border-radius: 0; border: none; font-size: 15px; }
.hero-mask { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(10,12,16,.78) 0%, rgba(10,12,16,.34) 62%, rgba(10,12,16,.12) 100%); }
.hero-body { position: relative; z-index: 2; max-width: var(--maxw); margin: 0 auto; padding: 0 40px; width: 100%; color: #fff; }
.hero-tag {
  display: inline-block; padding: 5px 14px; border: 1px solid rgba(255,255,255,.4);
  border-radius: 999px; font-size: 12px; letter-spacing: 1px; margin-bottom: 22px;
}
.hero-title { font-size: 56px; line-height: 1.2; font-weight: 700; letter-spacing: -1px; margin-bottom: 18px; }
.hero-desc { font-size: 17px; color: rgba(255,255,255,.78); max-width: 520px; margin-bottom: 34px; }
.hero-btns { display: flex; gap: 14px; flex-wrap: wrap; }

.hero-arrow {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 5;
  width: 48px; height: 48px; border-radius: 50%; border: 1px solid rgba(255,255,255,.35);
  color: #fff; font-size: 20px; display: flex; align-items: center; justify-content: center;
  transition: all .25s;
}
.hero-arrow:hover { background: rgba(255,255,255,.16); }
.hero-arrow.prev { left: 30px; }
.hero-arrow.next { right: 30px; }
.hero-dots { position: absolute; bottom: 38px; left: 50%; transform: translateX(-50%); z-index: 5; display: flex; gap: 10px; }
.hero-dots i {
  display: block; width: 30px; height: 3px; background: rgba(255,255,255,.35);
  cursor: pointer; transition: background .25s;
}
.hero-dots i.active { background: #fff; }

/* ---------- 分类 Tab ---------- */
.tabs { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-bottom: 40px; }
.tab {
  padding: 8px 20px; border-radius: 999px; border: 1px solid var(--c-line);
  font-size: 14px; color: var(--c-body); background: #fff; transition: all .22s;
}
.tab:hover { border-color: var(--c-primary); color: var(--c-primary); }
.tab.active { background: var(--c-ink); border-color: var(--c-ink); color: #fff; }

/* ---------- 案例卡片 ---------- */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.case-grid.col2 { grid-template-columns: repeat(2, 1fr); }
.case-card { display: block; transition: transform .3s var(--ease); }
.case-card:hover { transform: translateY(-6px); }
.case-cover { position: relative; overflow: hidden; border-radius: var(--radius); }
.case-cover .img-fit { transition: transform .5s var(--ease); }
.case-card:hover .case-cover .img-fit { transform: scale(1.05); }
.case-hover {
  position: absolute; inset: 0; background: rgba(16,20,28,.66); color: #fff;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px;
  opacity: 0; transition: opacity .3s; border-radius: var(--radius); font-size: 14px;
}
.case-card:hover .case-hover { opacity: 1; }
.case-hover .view { padding: 8px 22px; border: 1px solid rgba(255,255,255,.6); border-radius: 999px; font-size: 13px; }
.case-meta { padding: 16px 2px 0; }
.case-client { font-size: 12px; color: var(--c-primary); letter-spacing: 1px; margin-bottom: 6px; }
.case-name { font-size: 16px; color: var(--c-ink); font-weight: 500; line-height: 1.5; }
.case-tags { margin-top: 10px; display: flex; flex-wrap: wrap; gap: 6px; }
.case-tags span { font-size: 12px; color: var(--c-muted); background: var(--c-bg-soft); padding: 3px 10px; border-radius: 4px; }

.more-wrap { text-align: center; margin-top: 52px; }

/* ---------- 服务矩阵 ---------- */
.svc-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.svc-card {
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius);
  padding: 34px 30px; transition: all .3s var(--ease); display: block;
}
.svc-card:hover { border-color: var(--c-primary); box-shadow: var(--shadow-md); transform: translateY(-5px); }
.svc-icon { width: 46px; height: 46px; margin-bottom: 20px; font-size: 9px; }
.svc-name { font-size: 20px; color: var(--c-ink); font-weight: 600; margin-bottom: 4px; }
.svc-en { font-size: 12px; color: var(--c-muted); letter-spacing: 1px; text-transform: uppercase; margin-bottom: 18px; }
.svc-list { display: flex; flex-wrap: wrap; gap: 8px; }
.svc-list li { list-style: none; font-size: 13px; color: var(--c-body); }
.svc-list li::before { content: "· "; color: var(--c-primary); }

/* ---------- CTA 通栏 ---------- */
.cta-band { position: relative; padding: 76px 0; overflow: hidden; background: var(--c-ink); }
.cta-band .ph { position: absolute; inset: 0; border-radius: 0; border: none; }
.cta-inner { position: relative; z-index: 2; text-align: center; color: #fff; }
.cta-inner h3 { font-size: 32px; font-weight: 700; margin-bottom: 12px; letter-spacing: -.5px; }
.cta-inner p { color: rgba(255,255,255,.7); margin-bottom: 30px; }

/* ---------- 新闻 ---------- */
.news-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.news-card { display: block; background: #fff; border-radius: var(--radius); overflow: hidden; transition: all .3s var(--ease); border: 1px solid var(--c-line); }
.news-card:hover { box-shadow: var(--shadow-md); transform: translateY(-5px); }
.news-card .ph { border-radius: 0; border: none; border-bottom: 1px dashed var(--c-ph-line); }
.news-body { padding: 20px 20px 24px; }
.news-date { font-size: 12px; color: var(--c-muted); margin-bottom: 8px; letter-spacing: .5px; }
.news-title { font-size: 15px; color: var(--c-ink); line-height: 1.6; font-weight: 500; }
.news-card:hover .news-title { color: var(--c-primary); }

/* 新闻列表页样式 */
.news-row {
  display: grid; grid-template-columns: 280px 1fr; gap: 30px;
  padding: 28px 0; border-bottom: 1px solid var(--c-line); align-items: center;
}
.news-row:hover .news-row-title { color: var(--c-primary); }
.news-row-title { font-size: 19px; color: var(--c-ink); font-weight: 600; margin: 8px 0 10px; line-height: 1.5; }
.news-row-desc { color: var(--c-muted); font-size: 14px; }

/* 新闻详情导语 */
.news-lead {
  font-size: 17px; line-height: 1.85; color: var(--c-ink);
  font-weight: 500; padding: 4px 0 6px; margin-bottom: 22px;
  border-left: 3px solid var(--c-primary); padding-left: 16px;
}

/* ---------- 资质 ---------- */
.cert-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.cert-item { text-align: center; }
.cert-item .ph { margin-bottom: 14px; }
.cert-item p { font-size: 13px; color: var(--c-body); }

/* ==========================================================================
   内页公共
   ========================================================================== */
.page-hero {
  position: relative; height: 340px; display: flex; align-items: center;
  background: var(--c-ink); overflow: hidden; margin-top: 0;
}
.page-hero .ph { position: absolute; inset: 0; border-radius: 0; border: none; }
.page-hero-mask { position: absolute; inset: 0; background: rgba(12,14,18,.55); }
.page-hero-body { position: relative; z-index: 2; color: #fff; width: 100%; }
.page-hero h1 { font-size: 40px; font-weight: 700; letter-spacing: -.5px; margin-bottom: 10px; }
.page-hero p { color: rgba(255,255,255,.72); font-size: 15px; }

.crumb { padding: 18px 0; font-size: 13px; color: var(--c-muted); border-bottom: 1px solid var(--c-line); }
.crumb a:hover { color: var(--c-primary); }
.crumb span { margin: 0 8px; opacity: .5; }

/* ---------- 筛选区 ---------- */
.filter-bar { padding: 30px 0; border-bottom: 1px solid var(--c-line); }
.search-box { display: flex; gap: 10px; margin-bottom: 26px; max-width: 560px; }
.search-box input {
  flex: 1; height: 46px; padding: 0 18px; border: 1px solid var(--c-line);
  border-radius: 999px; outline: none; transition: border-color .2s;
}
.search-box input:focus { border-color: var(--c-primary); }
.filter-row { display: flex; gap: 16px; padding: 9px 0; align-items: flex-start; }
.filter-label { width: 56px; flex: none; font-size: 14px; color: var(--c-ink); font-weight: 600; padding-top: 5px; }
.filter-opts { display: flex; flex-wrap: wrap; gap: 8px; }
.fopt {
  padding: 5px 15px; border-radius: 6px; font-size: 13px; color: var(--c-body);
  background: var(--c-bg-soft); transition: all .2s;
}
.fopt:hover { color: var(--c-primary); }
.fopt.active { background: var(--c-primary); color: #fff; }

.filter-state {
  display: flex; align-items: center; flex-wrap: wrap; gap: 10px;
  padding: 20px 0; font-size: 13px; color: var(--c-muted);
}
.chip {
  display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px;
  background: #fff; border: 1px solid var(--c-line); border-radius: 6px; font-size: 12px; color: var(--c-ink);
}
.chip b { font-weight: 400; color: var(--c-muted); }
.chip .x { cursor: pointer; color: var(--c-muted); font-size: 14px; line-height: 1; }
.chip .x:hover { color: #d13b3b; }
.clear-all { color: var(--c-primary); cursor: pointer; font-size: 13px; }

.empty-state { text-align: center; padding: 90px 0; color: var(--c-muted); }
.empty-state .ph { width: 110px; height: 110px; margin: 0 auto 20px; }

.pager { display: flex; justify-content: center; gap: 8px; margin-top: 56px; }
.pager a, .pager span {
  min-width: 38px; height: 38px; padding: 0 12px; border: 1px solid var(--c-line);
  border-radius: 6px; display: flex; align-items: center; justify-content: center;
  font-size: 14px; color: var(--c-body); transition: all .2s;
}
.pager a:hover { border-color: var(--c-primary); color: var(--c-primary); }
.pager .cur { background: var(--c-ink); border-color: var(--c-ink); color: #fff; }

/* ---------- 详情页 ---------- */
.detail-head { padding: 56px 0 40px; text-align: center; border-bottom: 1px solid var(--c-line); }
.detail-head h1 { font-size: 36px; color: var(--c-ink); font-weight: 700; margin-bottom: 14px; letter-spacing: -.5px; }
.detail-info { display: flex; justify-content: center; gap: 26px; flex-wrap: wrap; font-size: 13px; color: var(--c-muted); }
.detail-body { padding: 56px 0; max-width: 880px; margin: 0 auto; }
.detail-body h2 { font-size: 22px; color: var(--c-ink); margin: 40px 0 16px; font-weight: 600; }
.detail-body p { margin-bottom: 16px; }
.detail-body .ph { margin: 26px 0; }
.detail-body .note {
  background: var(--c-bg-soft); border-left: 3px solid var(--c-primary);
  padding: 14px 18px; font-size: 13px; color: var(--c-muted); border-radius: 0 6px 6px 0; margin: 20px 0;
}

.meta-table { width: 100%; border-collapse: collapse; margin: 26px 0; font-size: 14px; }
.meta-table th, .meta-table td { padding: 13px 16px; border: 1px solid var(--c-line); text-align: left; }
.meta-table th { background: var(--c-bg-soft); color: var(--c-ink); width: 130px; font-weight: 600; }

.detail-nav { display: flex; justify-content: space-between; gap: 20px; padding: 26px 0; border-top: 1px solid var(--c-line); border-bottom: 1px solid var(--c-line); font-size: 14px; }
.detail-nav a:hover { color: var(--c-primary); }
.detail-nav .disabled { color: var(--c-muted); pointer-events: none; }

/* H5 手机壳容器 */
.phone-shell {
  width: 300px; margin: 26px auto; border: 10px solid #23262c; border-radius: 34px;
  overflow: hidden; box-shadow: var(--shadow-md);
}
.phone-shell .ph, .phone-shell .img-fit { border-radius: 0; border: none; margin: 0; aspect-ratio: 9 / 19.5; }

/* ==========================================================================
   服务页
   ========================================================================== */
.svc-block { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; padding: 72px 0; border-bottom: 1px solid var(--c-line); }
.svc-block:nth-child(even) .svc-block-txt { order: 2; }
.svc-block-en { font-size: 12px; letter-spacing: 2px; color: var(--c-primary); text-transform: uppercase; margin-bottom: 10px; font-weight: 600; }
.svc-block h2 { font-size: 30px; color: var(--c-ink); font-weight: 700; margin-bottom: 16px; letter-spacing: -.5px; }
.cap-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin-top: 22px; }
.cap-grid li { list-style: none; font-size: 14px; color: var(--c-body); padding-left: 16px; position: relative; }
.cap-grid li::before { content: ""; position: absolute; left: 0; top: 10px; width: 5px; height: 5px; border-radius: 50%; background: var(--c-primary); }

.industry-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.industry-card { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); padding: 28px 24px; transition: all .3s var(--ease); }
.industry-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.industry-card h4 { font-size: 17px; color: var(--c-ink); margin-bottom: 12px; font-weight: 600; }
.industry-card p { font-size: 13px; color: var(--c-body); margin-bottom: 12px; }
.industry-card .clients { font-size: 12px; color: var(--c-muted); line-height: 1.8; }

/* ==========================================================================
   关于 / 招聘 / 联系
   ========================================================================== */
.sub-nav { border-bottom: 1px solid var(--c-line); background: #fff; }
.sub-nav ul { display: flex; gap: 6px; list-style: none; }
.sub-nav a { display: block; padding: 18px 24px; font-size: 15px; color: var(--c-body); border-bottom: 2px solid transparent; transition: all .2s; }
.sub-nav a:hover { color: var(--c-primary); }
.sub-nav li.active a { color: var(--c-primary); border-bottom-color: var(--c-primary); font-weight: 600; }

.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; text-align: center; }
.stat-num { font-size: 44px; color: var(--c-ink); font-weight: 700; letter-spacing: -1px; }
.stat-num small { font-size: 18px; margin-left: 2px; }
.stat-label { font-size: 14px; color: var(--c-muted); margin-top: 6px; }

.timeline { position: relative; padding-left: 34px; }
.timeline::before { content: ""; position: absolute; left: 7px; top: 8px; bottom: 8px; width: 2px; background: var(--c-line); }
.tl-item { position: relative; padding-bottom: 34px; }
.tl-item::before { content: ""; position: absolute; left: -32px; top: 7px; width: 10px; height: 10px; border-radius: 50%; background: var(--c-primary); box-shadow: 0 0 0 4px rgba(26,79,214,.14); }
.tl-year { font-size: 19px; color: var(--c-ink); font-weight: 700; margin-bottom: 5px; }

.team-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }
.team-card { text-align: center; }
.team-card .ph { margin-bottom: 14px; }
.team-name { font-size: 16px; color: var(--c-ink); font-weight: 600; }
.team-role { font-size: 13px; color: var(--c-muted); }

.honor-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.honor-item { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); padding: 20px; text-align: center; transition: all .3s; }
.honor-item:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.honor-item .ph { margin-bottom: 14px; }
.honor-item h5 { font-size: 15px; color: var(--c-ink); font-weight: 600; margin-bottom: 6px; }
.honor-item span { font-size: 12px; color: var(--c-muted); }

.welfare-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.welfare-card { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); padding: 28px 26px; }
.welfare-card h4 { font-size: 17px; color: var(--c-ink); margin-bottom: 14px; font-weight: 600; display: flex; align-items: center; gap: 10px; }
.welfare-card h4 .ph { width: 30px; height: 30px; font-size: 8px; padding: 2px; flex: none; }
.welfare-card li { list-style: none; font-size: 14px; color: var(--c-body); padding: 5px 0 5px 15px; position: relative; }
.welfare-card li::before { content: ""; position: absolute; left: 0; top: 14px; width: 4px; height: 4px; border-radius: 50%; background: var(--c-primary); }

.job-item { border: 1px solid var(--c-line); border-radius: var(--radius); margin-bottom: 14px; background: #fff; overflow: hidden; }
.job-head { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 22px 26px; cursor: pointer; }
.job-head h4 { font-size: 17px; color: var(--c-ink); font-weight: 600; margin-bottom: 6px; }
.job-tags { display: flex; gap: 8px; flex-wrap: wrap; font-size: 12px; color: var(--c-muted); }
.job-tags span { background: var(--c-bg-soft); padding: 3px 10px; border-radius: 4px; }
.job-toggle { font-size: 22px; color: var(--c-muted); transition: transform .3s; flex: none; }
.job-item.open .job-toggle { transform: rotate(45deg); }
.job-detail { max-height: 0; overflow: hidden; transition: max-height .35s var(--ease); }
.job-item.open .job-detail { max-height: 700px; }
.job-detail-in { padding: 0 26px 26px; border-top: 1px solid var(--c-line); padding-top: 22px; }
.job-detail-in h5 { font-size: 14px; color: var(--c-ink); margin: 16px 0 8px; font-weight: 600; }
.job-detail-in li { font-size: 14px; margin-left: 18px; padding: 3px 0; }

/* 联系我们 */
.city-tabs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 40px; }
.city-tab { padding: 8px 20px; border: 1px solid var(--c-line); border-radius: 999px; font-size: 14px; color: var(--c-body); background: #fff; transition: all .22s; }
.city-tab:hover { border-color: var(--c-primary); color: var(--c-primary); }
.city-tab.active { background: var(--c-primary); border-color: var(--c-primary); color: #fff; }

.contact-layout { display: grid; grid-template-columns: 400px 1fr; gap: 40px; align-items: start; }
.contact-card { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); padding: 32px 30px; }
.contact-card h3 { font-size: 22px; color: var(--c-ink); margin-bottom: 22px; font-weight: 700; }
.contact-line { display: flex; gap: 12px; padding: 11px 0; font-size: 14px; border-bottom: 1px dashed var(--c-line); }
.contact-line:last-child { border-bottom: none; }
.contact-line .k { width: 62px; flex: none; color: var(--c-muted); }
.contact-line .v { color: var(--c-ink); flex: 1; }
.contact-line .v a { color: var(--c-primary); }
.office-list { margin-top: 24px; }
.office-item { padding: 14px 16px; background: var(--c-bg-soft); border-radius: 8px; margin-bottom: 10px; cursor: pointer; border: 1px solid transparent; transition: all .2s; }
.office-item.active { border-color: var(--c-primary); background: rgba(26,79,214,.05); }
.office-item h5 { font-size: 14px; color: var(--c-ink); font-weight: 600; margin-bottom: 4px; }
.office-item p { font-size: 13px; color: var(--c-body); }
.map-box { height: 100%; min-height: 520px; }
.map-box .ph { height: 100%; min-height: 520px; }

.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.form-item.full { grid-column: 1 / -1; }
.form-item label { display: block; font-size: 13px; color: var(--c-ink); margin-bottom: 7px; font-weight: 500; }
.form-item label .req { color: #d13b3b; }
.form-item input, .form-item select, .form-item textarea {
  width: 100%; padding: 12px 14px; border: 1px solid var(--c-line);
  border-radius: 8px; outline: none; transition: border-color .2s; background: #fff;
}
.form-item input:focus, .form-item select:focus, .form-item textarea:focus { border-color: var(--c-primary); }
.form-item textarea { resize: vertical; min-height: 96px; }
.form-err { color: #d13b3b; font-size: 12px; margin-top: 5px; display: none; }
.form-item.error input { border-color: #d13b3b; }
.form-item.error .form-err { display: block; }
.form-agree { display: flex; align-items: flex-start; gap: 8px; font-size: 13px; color: var(--c-muted); margin: 6px 0 4px; }
.form-agree a { color: var(--c-primary); }
.captcha-row { display: flex; gap: 10px; }
.captcha-row input { flex: 1; }
.captcha-row .ph { width: 108px; height: 45px; flex: none; font-size: 10px; padding: 4px; }

/* ==========================================================================
   页脚
   ========================================================================== */
.footer { background: #16181d; color: #9299a3; padding: 70px 0 0; font-size: 14px; }
.foot-top { display: grid; grid-template-columns: repeat(4, 1fr) 220px; gap: 40px; padding-bottom: 50px; }
.foot-col h4 { color: #fff; font-size: 15px; margin-bottom: 18px; font-weight: 600; }
.foot-col a, .foot-col li { display: block; list-style: none; padding: 5px 0; font-size: 13px; color: #9299a3; transition: color .2s; }
.foot-col a:hover { color: #fff; }
.foot-cities { display: flex; flex-wrap: wrap; gap: 4px 12px; }
.foot-cities a { padding: 4px 0; }
.foot-contact li { padding: 4px 0; line-height: 1.7; }
.foot-contact b { color: #fff; font-weight: 500; display: block; font-size: 12px; margin-top: 8px; }
.foot-qr { display: flex; gap: 14px; }
.foot-qr .qr { text-align: center; }
.foot-qr .ph { width: 84px; height: 84px; margin-bottom: 8px; font-size: 9px; padding: 4px; }
.foot-qr p { font-size: 12px; }
.foot-bottom {
  border-top: 1px solid #262a31; padding: 22px 0; font-size: 12.5px;
  display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap;
}
.foot-bottom a:hover { color: #fff; }

/* ==========================================================================
   浮窗 / 弹窗 / 回顶
   ========================================================================== */
.side-bar { position: fixed; right: 20px; bottom: 90px; z-index: 800; display: flex; flex-direction: column; gap: 10px; }
.side-btn {
  width: 52px; height: 52px; border-radius: 12px; background: #fff;
  border: 1px solid var(--c-line); box-shadow: var(--shadow-sm);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 2px; font-size: 11px; color: var(--c-body); transition: all .25s var(--ease); position: relative;
}
.side-btn:hover { background: var(--c-primary); color: #fff; border-color: var(--c-primary); transform: translateX(-3px); }
.side-btn .ico { font-size: 17px; line-height: 1; }
.side-btn .pop {
  position: absolute; right: 62px; top: 50%; transform: translateY(-50%) translateX(8px);
  background: #fff; border: 1px solid var(--c-line); border-radius: 8px; box-shadow: var(--shadow-md);
  padding: 12px; opacity: 0; visibility: hidden; transition: all .25s var(--ease); white-space: nowrap; color: var(--c-ink);
}
.side-btn:hover .pop { opacity: 1; visibility: visible; transform: translateY(-50%) translateX(0); }
.side-btn .pop .ph { width: 104px; height: 104px; font-size: 9px; padding: 4px; }
#toTop { opacity: 0; visibility: hidden; }
#toTop.show { opacity: 1; visibility: visible; }

.modal { position: fixed; inset: 0; z-index: 1000; display: none; }
.modal.open { display: block; }
.modal-mask { position: absolute; inset: 0; background: rgba(12,14,18,.6); backdrop-filter: blur(2px); }
.modal-box {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -48%);
  width: 520px; max-width: calc(100vw - 40px); max-height: calc(100vh - 60px); overflow-y: auto;
  background: #fff; border-radius: 14px; padding: 36px 38px;
  animation: modalIn .3s var(--ease) forwards;
}
@keyframes modalIn { to { transform: translate(-50%, -50%); } }
.modal-close { position: absolute; top: 14px; right: 18px; font-size: 26px; color: var(--c-muted); line-height: 1; }
.modal-close:hover { color: var(--c-ink); }
.modal-box h3 { font-size: 23px; color: var(--c-ink); font-weight: 700; margin-bottom: 6px; }
.modal-box .sub { font-size: 13px; color: var(--c-muted); margin-bottom: 24px; }
.modal-box .btn { width: 100%; margin-top: 8px; }
.modal-ok { text-align: center; padding: 16px 0; }
.modal-ok .tick {
  width: 62px; height: 62px; border-radius: 50%; background: #eaf6ee; color: #2f9e56;
  font-size: 30px; display: flex; align-items: center; justify-content: center; margin: 0 auto 18px;
}
.modal-ok h3 { margin-bottom: 8px; }
.modal-ok .ph { width: 132px; height: 132px; margin: 20px auto 10px; font-size: 10px; padding: 6px; }

/* ---------- 进场动效 ---------- */
.rv { opacity: 0; transform: translateY(26px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.rv.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .rv { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- 原型标注 ---------- */
.spec {
  position: relative; background: #fffdf4; border: 1px dashed #e3d9a8;
  color: #8a7a3d; font-size: 12.5px; line-height: 1.75; padding: 12px 16px;
  border-radius: 8px; margin: 14px 0;
}
.spec b { color: #6d5f2b; }
.demo-note {
  background: rgba(26,79,214,.06); border: 1px solid rgba(26,79,214,.18);
  color: var(--c-primary); font-size: 12.5px; padding: 10px 16px;
  border-radius: 8px; margin-bottom: 22px; text-align: center;
}

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width: 1180px) {
  .foot-top { grid-template-columns: repeat(3, 1fr); }
  .news-grid, .cert-grid, .industry-grid, .team-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 1024px) {
  .wrap, .nav-inner, .hero-body { padding: 0 24px; }
  .nav-menu { display: none; }
  .hamburger { display: flex; }
  .nav-cta .btn { display: none; }
  .case-grid, .svc-grid, .honor-grid, .welfare-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-layout { grid-template-columns: 1fr; }
  .map-box, .map-box .ph { min-height: 320px; }
  .hero-title { font-size: 40px; }
  .svc-block { grid-template-columns: 1fr; gap: 30px; padding: 48px 0; }
  .svc-block:nth-child(even) .svc-block-txt { order: 0; }
  .sec-title { font-size: 27px; }
  .sec { padding: 64px 0; }
}
@media (max-width: 720px) {
  body { font-size: 14px; }
  .hero { height: 88vh; min-height: 520px; }
  .hero-title { font-size: 30px; }
  .hero-desc { font-size: 15px; }
  .hero-arrow { display: none; }
  .case-grid, .svc-grid, .news-grid, .cert-grid, .industry-grid,
  .team-grid, .honor-grid, .welfare-grid, .stat-grid, .form-grid,
  .case-grid.col2 { grid-template-columns: 1fr; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .foot-top { grid-template-columns: 1fr; gap: 30px; }
  .news-row { grid-template-columns: 1fr; gap: 16px; }
  .page-hero { height: 240px; }
  .page-hero h1 { font-size: 27px; }
  .detail-head h1 { font-size: 25px; }
  .sec-title { font-size: 23px; }
  .filter-row { flex-direction: column; gap: 8px; }
  .side-bar { right: 12px; bottom: 70px; }
  .side-btn { width: 46px; height: 46px; }
  .sub-nav ul { overflow-x: auto; }
  .sub-nav a { padding: 15px 16px; white-space: nowrap; }
  .modal-box { padding: 28px 22px; }
  .cap-grid { grid-template-columns: 1fr; }
}

/* ==========================================================================
   对外展示增强：去掉线框观感，像真官网
   ========================================================================== */

/* 原型标注默认隐藏（保留 DOM）；给 <body> 加 class="dev" 可恢复，便于给开发看 */
.spec, .demo-note { display: none; }
body.dev .spec, body.dev .demo-note { display: block; }

/* 空状态：去掉斜纹，改为干净的中性占位 */
.empty-state .ph {
  background-image: none; background-color: var(--c-bg-soft);
  border: 1px solid var(--c-line); color: var(--c-muted);
}

/* 服务流程编号徽标（替代条纹占位圆） */
.step-badge {
  width: 78px; height: 78px; margin: 0 auto 14px; border-radius: 50%;
  background: var(--c-primary); color: #fff; font-size: 24px; font-weight: 700;
  letter-spacing: 1px; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 10px 24px rgba(26,79,214,.28);
}

/* 案例详情：视频位（干净的可嵌入播放器占位） */
.video-block {
  position: relative; width: 100%; aspect-ratio: 16 / 9; background: #16181d;
  border-radius: var(--radius); overflow: hidden; display: flex;
  align-items: center; justify-content: center;
}
.video-block .play {
  width: 0; height: 0; border-style: solid; border-width: 15px 0 15px 25px;
  border-color: transparent transparent transparent #fff; margin-left: 8px;
  filter: drop-shadow(0 6px 16px rgba(0,0,0,.45));
}
.video-block .vb-tip {
  position: absolute; bottom: 16px; color: rgba(255,255,255,.72); font-size: 13px;
}

/* 二维码占位（干净样式，替代条纹块） */
.qr-box {
  width: 150px; height: 150px; margin: 0 auto; border: 1px solid var(--c-line);
  border-radius: 12px; background: #fff; display: flex; align-items: center;
  justify-content: center;
}
.qr-box svg { width: 104px; height: 104px; }

/* 图形验证码占位（仿真样式） */
.captcha-box {
  width: 108px; height: 45px; flex: none; border-radius: 8px;
  background: linear-gradient(135deg, #eef1f6, #dde6f3); color: #1a4fd6;
  font-weight: 700; letter-spacing: 5px; font-size: 20px; font-style: italic;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--c-line); user-select: none;
}

/* 联系页：真实地图嵌入 */
.map-box { height: 100%; min-height: 520px; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--c-line); }
.map-frame { width: 100%; height: 100%; min-height: 520px; border: 0; display: block; }

/* 小图标（联系入口 / 福利卡片） */
.svc-ico, .wel-ico {
  display: flex; align-items: center; justify-content: center; color: var(--c-primary);
}
.svc-ico { width: 54px; height: 54px; margin: 0 auto 16px; border-radius: 14px; background: rgba(26,79,214,.10); }
.svc-ico svg { width: 26px; height: 26px; }
.wel-ico { width: 34px; height: 34px; flex: none; border-radius: 9px; background: rgba(26,79,214,.10); }
.wel-ico svg { width: 19px; height: 19px; }

/* H5 手机壳内真实案例图（已由 JS 注入背景） */
.phone-shell .img-fit { background-color: #23262c; }

/* ============ 首页：客户墙 ============ */
.client-wall { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; }
.client-cell {
  background: #fff; border: 1px solid var(--c-line); border-radius: 10px;
  height: 96px; display: flex; align-items: center; justify-content: center;
  padding: 14px; transition: .2s;
}
.client-cell:hover { border-color: var(--c-primary); box-shadow: 0 6px 18px rgba(20,22,26,.06); }
.client-cell img { max-width: 100%; max-height: 60px; object-fit: contain; filter: grayscale(1); opacity: .72; transition: .2s; }
.client-cell:hover img { filter: none; opacity: 1; }

/* ============ 首页：全国布局 ============ */
.global-layout { display: grid; grid-template-columns: 1.1fr 1fr; gap: 48px; align-items: center; }
.global-map { border-radius: 12px; min-height: 320px; background-color: #eef0f3; }
.city-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.city-card { background: #fff; border: 1px solid var(--c-line); border-radius: 10px; padding: 16px 18px; }
.city-name { font-size: 17px; font-weight: 700; color: var(--c-ink); margin-bottom: 8px; }
.city-meta { display: flex; gap: 14px; font-size: 13px; color: var(--c-muted); margin-bottom: 8px; }
.city-clients { font-size: 13px; color: var(--c-ink); line-height: 1.5; }
.city-note { grid-column: 1 / -1; font-size: 13px; color: var(--c-muted); margin-top: 4px; }

@media (max-width: 900px) {
  .client-wall { grid-template-columns: repeat(4, 1fr); }
  .global-layout { grid-template-columns: 1fr; }
  .city-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .client-wall { grid-template-columns: repeat(3, 1fr); }
  .city-grid { grid-template-columns: 1fr; }
}