/* ==========================================================================
   弥云科技 · MY-TEC 官网样式
   品牌主色取自企业 Logo（#1D4986）
   ========================================================================== */

:root {
  --navy: #1D4986;
  --navy-dark: #10294F;
  --ink: #0B1E3D;
  --cyan: #06B6D4;
  --cyan-dark: #0E9FC0;
  --blue: #3B82F6;
  --text: #22364E;
  --muted: #64748B;
  --line: #E2EAF4;
  --bg: #FFFFFF;
  --bg-soft: #F5F8FC;
  --tint: #EAF1FA;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 10px rgba(16, 41, 79, 0.06);
  --shadow: 0 10px 34px rgba(16, 41, 79, 0.10);
  --shadow-lg: 0 22px 60px rgba(16, 41, 79, 0.16);
  --max: 1200px;
  --header-h: 72px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 { color: var(--ink); line-height: 1.25; margin: 0 0 .6em; font-weight: 700; }

.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* ---------------- 顶栏 ---------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap {
  height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 28px;
}
.logo { display: flex; align-items: center; gap: 12px; flex: none; }
.logo img { height: 34px; width: auto; }
.logo .lt { font-weight: 700; color: var(--navy); font-size: 17px; letter-spacing: .04em; }
.logo .lt small { display: block; font-size: 10px; font-weight: 500; color: var(--muted); letter-spacing: .18em; margin-top: 1px; }

.nav { margin-left: auto; display: flex; align-items: center; gap: 4px; }
.nav a {
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 15px;
  color: #33475F;
  transition: .18s;
  white-space: nowrap;
}
.nav a:hover { background: var(--tint); color: var(--navy); }
.nav a.active { color: var(--navy); font-weight: 600; background: var(--tint); }

.header-cta {
  margin-left: 10px;
  padding: 10px 20px;
  border-radius: 999px;
  background: var(--navy);
  color: #fff !important;
  font-size: 14px;
  font-weight: 600;
  transition: .2s;
}
.header-cta:hover { background: var(--navy-dark); box-shadow: 0 8px 20px rgba(29, 73, 134, .28); }

.nav-toggle {
  display: none;
  margin-left: auto;
  width: 42px; height: 42px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  position: relative;
  cursor: pointer;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  position: absolute; left: 11px; width: 20px; height: 2px; background: var(--navy); border-radius: 2px;
  transition: .22s;
}
.nav-toggle span { top: 20px; }
.nav-toggle span::before { content: ""; top: -6px; left: 0; }
.nav-toggle span::after { content: ""; top: 6px; left: 0; }

/* ---------------- 通用区块 ---------------- */
section { padding: 84px 0; }
section.tight { padding: 60px 0; }
.bg-soft { background: var(--bg-soft); }
.bg-tint { background: var(--tint); }

.eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .16em;
  color: var(--cyan-dark);
  margin-bottom: 14px;
}
.sec-head { max-width: 760px; margin-bottom: 44px; }
.sec-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.sec-head h2 { font-size: 34px; margin-bottom: 14px; }
.sec-head p { font-size: 16px; color: var(--muted); margin: 0; }
.sec-head .rule { width: 52px; height: 4px; border-radius: 2px; background: linear-gradient(90deg, var(--cyan), var(--blue)); margin: 18px 0 0; }
.sec-head.center .rule { margin-left: auto; margin-right: auto; }

/* ---------------- 按钮 ---------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  transition: .2s;
  border: 1px solid transparent;
  cursor: pointer;
}
.btn-primary { background: var(--navy); color: #fff; }
.btn-primary:hover { background: var(--navy-dark); box-shadow: 0 10px 26px rgba(29, 73, 134, .3); transform: translateY(-1px); }
.btn-cyan { background: var(--cyan); color: #04313B; }
.btn-cyan:hover { background: #22C7E3; box-shadow: 0 10px 26px rgba(6, 182, 212, .32); transform: translateY(-1px); }
.btn-ghost { border-color: rgba(255, 255, 255, .5); color: #fff; }
.btn-ghost:hover { background: rgba(255, 255, 255, .14); }
.btn-outline { border-color: var(--line); color: var(--navy); background: #fff; }
.btn-outline:hover { border-color: var(--navy); background: var(--tint); }

/* ---------------- Hero ---------------- */
.hero {
  position: relative;
  padding: 0;
  color: #fff;
  background: var(--ink);
  overflow: hidden;
}
.hero .hero-bg {
  position: absolute; inset: 0;
  background-size: cover;
  background-position: center;
  opacity: .62;
}
.hero .hero-mask {
  position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(9, 22, 44, .94) 0%, rgba(9, 22, 44, .82) 42%, rgba(9, 22, 44, .42) 100%);
}
.hero .hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .05) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(circle at 70% 30%, #000 0%, transparent 72%);
}
.hero .wrap { position: relative; padding-top: 108px; padding-bottom: 96px; }
.hero .kicker {
  font-size: 14px;
  letter-spacing: .26em;
  color: #7DD3FC;
  margin-bottom: 20px;
}
.hero h1 { font-size: 52px; color: #fff; line-height: 1.18; margin-bottom: 20px; letter-spacing: .01em; }
.hero h1 em { font-style: normal; background: linear-gradient(92deg, #7DD3FC, #22D3EE); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero .lede { font-size: 18px; color: rgba(255, 255, 255, .86); max-width: 660px; margin: 0 0 32px; }
.hero .hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero .hero-line { width: 64px; height: 4px; border-radius: 2px; background: linear-gradient(90deg, var(--cyan), var(--blue)); margin: 0 0 24px; }

.hero-sm .wrap { padding-top: 76px; padding-bottom: 68px; }
.hero-sm h1 { font-size: 40px; }

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 26px;
  margin-top: 60px;
  padding-top: 34px;
  border-top: 1px solid rgba(255, 255, 255, .18);
}
.hero-stats .hs .n { font-size: 32px; font-weight: 700; color: #fff; line-height: 1.1; }
.hero-stats .hs .n span { font-size: 16px; font-weight: 600; color: #7DD3FC; }
.hero-stats .hs .l { font-size: 13px; color: rgba(255, 255, 255, .68); margin-top: 6px; }

/* ---------------- 卡片 ---------------- */
.grid { display: grid; gap: 24px; }
.g2 { grid-template-columns: repeat(2, 1fr); }
.g3 { grid-template-columns: repeat(3, 1fr); }
.g4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 28px;
  transition: .24s;
  position: relative;
  overflow: hidden;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: #CFDEF0; }
.card .ico {
  width: 48px; height: 48px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--navy), var(--cyan-dark));
  color: #fff;
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 18px;
}
.card h3 { font-size: 19px; margin-bottom: 10px; }
.card p { font-size: 14.5px; color: var(--muted); margin: 0 0 14px; }
.card ul { margin: 0; padding-left: 20px; }
.card li { font-size: 14px; color: #3B5069; margin-bottom: 7px; }
.card li b, .card p b { color: var(--navy); }
.card.plain .ico { background: var(--tint); color: var(--navy); }

.card-accent { border-top: 3px solid var(--cyan); }

/* 产品线大卡 */
.pline {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: #fff;
  margin-bottom: 26px;
  transition: .24s;
}
.pline:hover { box-shadow: var(--shadow); }
.pline .pl-body { padding: 40px 40px 36px; }
.pline .pl-media { position: relative; min-height: 300px; background-size: cover; background-position: center; }
.pline .pl-media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(11, 30, 61, .34), rgba(11, 30, 61, .06)); }
.pline .pl-no { font-size: 13px; font-weight: 700; letter-spacing: .18em; color: var(--cyan-dark); margin-bottom: 12px; }
.pline h3 { font-size: 25px; margin-bottom: 12px; }
.pline p { font-size: 15px; color: var(--muted); margin: 0 0 18px; }
.pline .tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 4px; }
.pline .tag {
  font-size: 12.5px; font-weight: 600;
  padding: 6px 13px; border-radius: 999px;
  background: var(--tint); color: var(--navy);
}

/* ---------------- 能力/架构图示 ---------------- */
.stack { display: grid; gap: 12px; }
.layer {
  display: flex; align-items: center; gap: 18px;
  background: #fff; border: 1px solid var(--line);
  border-left: 4px solid var(--navy);
  border-radius: var(--radius-sm);
  padding: 18px 22px;
}
.layer.c1 { border-left-color: var(--navy); }
.layer.c2 { border-left-color: var(--cyan); }
.layer.c3 { border-left-color: var(--blue); }
.layer.c4 { border-left-color: #8B5CF6; }
.layer .lt { font-size: 16px; font-weight: 700; color: var(--ink); }
.layer .ld { font-size: 13.5px; color: var(--muted); }

.flow { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr; align-items: center; gap: 10px; }
.flow .fbox { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 18px 16px; text-align: center; }
.flow .fbox.hi { background: var(--navy); border-color: var(--navy); }
.flow .fbox.hi .ft { color: #fff; }
.flow .fbox.hi .fd { color: rgba(255, 255, 255, .75); }
.flow .ft { font-size: 14.5px; font-weight: 700; color: var(--navy); }
.flow .fd { font-size: 12.5px; color: var(--muted); margin-top: 6px; line-height: 1.5; }
.flow .fa { color: var(--cyan); font-size: 18px; font-weight: 700; }

/* ---------------- 数据卡 ---------------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.stat {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 24px; text-align: center;
}
.stat .n { font-size: 36px; font-weight: 700; color: var(--navy); line-height: 1.1; }
.stat .n span { font-size: 18px; color: var(--cyan-dark); }
.stat .l { font-size: 14px; color: var(--muted); margin-top: 8px; }

/* ---------------- 时间轴 ---------------- */
.timeline { position: relative; padding-left: 0; }
.timeline::before {
  content: ""; position: absolute; left: 92px; top: 8px; bottom: 8px;
  width: 2px; background: linear-gradient(180deg, var(--cyan), var(--navy));
  opacity: .35;
}
.tl-item { display: grid; grid-template-columns: 92px 1fr; gap: 30px; padding: 0 0 30px; position: relative; }
.tl-item .yr { font-size: 17px; font-weight: 700; color: var(--navy); text-align: right; padding-top: 2px; }
.tl-item .body { position: relative; padding-left: 26px; }
.tl-item .body::before {
  content: ""; position: absolute; left: -6px; top: 9px;
  width: 12px; height: 12px; border-radius: 50%;
  background: #fff; border: 2.5px solid var(--cyan);
}
.tl-item h4 { font-size: 16px; margin-bottom: 5px; }
.tl-item p { font-size: 14px; color: var(--muted); margin: 0; }

/* ---------------- 客户 logo 墙 ---------------- */
.logos { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; }
.logos .lg {
  border: 1px solid var(--line); border-radius: var(--radius-sm);
  background: #fff; padding: 22px 14px; text-align: center;
  font-size: 15px; font-weight: 700; color: #3E5872;
  letter-spacing: .02em;
}

/* ---------------- 表格 ---------------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
table { width: 100%; border-collapse: collapse; min-width: 620px; }
th, td { text-align: left; padding: 16px 20px; font-size: 14.5px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { background: var(--navy-dark); color: #fff; font-weight: 600; font-size: 14px; }
tbody tr:last-child td { border-bottom: none; }
tbody tr:nth-child(even) { background: #FAFCFE; }
td .lv { font-weight: 700; color: var(--navy); }

/* ---------------- 提示块 ---------------- */
.callout {
  border-left: 4px solid var(--cyan);
  background: rgba(6, 182, 212, .07);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 20px 24px;
  font-size: 14.5px;
  color: #1B3A56;
}
.callout.warn { border-left-color: #E06A00; background: rgba(224, 106, 0, .08); }
.callout b { color: var(--navy); }

/* ---------------- CTA 横幅 ---------------- */
.cta {
  background:
    radial-gradient(circle at 82% 20%, rgba(6, 182, 212, .32) 0%, transparent 55%),
    linear-gradient(120deg, var(--ink) 0%, var(--navy-dark) 55%, #16406F 100%);
  color: #fff;
  border-radius: 20px;
  padding: 54px 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
}
.cta h2 { color: #fff; font-size: 28px; margin-bottom: 10px; }
.cta p { color: rgba(255, 255, 255, .78); margin: 0; font-size: 15.5px; max-width: 560px; }
.cta .cta-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------------- 联系页 ---------------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.15fr; gap: 34px; align-items: start; }
.info-list { display: grid; gap: 2px; }
.info-item {
  display: flex; gap: 18px; align-items: flex-start;
  padding: 22px 24px;
  background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius-sm);
}
.info-item .ii {
  width: 42px; height: 42px; flex: none; border-radius: 10px;
  background: var(--tint); color: var(--navy);
  display: flex; align-items: center; justify-content: center;
  font-size: 15px; font-weight: 700;
}
.info-item .ik { font-size: 13px; color: var(--muted); letter-spacing: .06em; }
.info-item .iv { font-size: 16px; font-weight: 700; color: var(--navy); word-break: break-all; }

/* ---------------- 页脚 ---------------- */
.site-footer {
  background: var(--ink);
  color: rgba(255, 255, 255, .74);
  padding: 64px 0 28px;
  margin-top: 0;
}
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; }
.site-footer .flogo { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; }
.site-footer .flogo img { height: 38px; background: #fff; border-radius: 9px; padding: 4px; }
.site-footer .fname { font-size: 16px; font-weight: 700; color: #fff; }
.site-footer .fname small { display: block; font-size: 10px; letter-spacing: .18em; color: rgba(255, 255, 255, .6); font-weight: 500; margin-top: 2px; }
.site-footer p { font-size: 13.5px; line-height: 1.75; color: rgba(255, 255, 255, .66); margin: 0 0 8px; }
.site-footer h5 { color: #fff; font-size: 14px; margin: 0 0 16px; letter-spacing: .04em; }
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin-bottom: 10px; }
.site-footer li a { font-size: 13.5px; color: rgba(255, 255, 255, .7); transition: .18s; }
.site-footer li a:hover { color: #7DD3FC; }
.footer-bottom {
  margin-top: 46px; padding-top: 22px;
  border-top: 1px solid rgba(255, 255, 255, .12);
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  font-size: 12.5px; color: rgba(255, 255, 255, .5);
}

/* ---------------- 响应式 ---------------- */
@media (max-width: 1080px) {
  .g4, .stats, .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .logos { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 900px) {
  .nav-toggle { display: block; }
  .nav {
    position: absolute; top: var(--header-h); left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--line);
    flex-direction: column; align-items: stretch; gap: 0;
    padding: 10px 16px 18px;
    display: none;
    box-shadow: var(--shadow);
  }
  .nav.open { display: flex; }
  .nav a { padding: 13px 12px; font-size: 15.5px; }
  .header-cta { margin: 8px 12px 0; text-align: center; justify-content: center; display: flex; }
  .pline { grid-template-columns: 1fr; }
  .pline .pl-media { min-height: 200px; order: -1; }
  .flow { grid-template-columns: 1fr; }
  .flow .fa { transform: rotate(90deg); justify-self: center; }
  .contact-grid { grid-template-columns: 1fr; }
  .timeline::before { left: 66px; }
  .tl-item { grid-template-columns: 66px 1fr; gap: 20px; }
  .cta { padding: 40px 30px; }
}
@media (max-width: 640px) {
  :root { --header-h: 64px; }
  section { padding: 56px 0; }
  .g2, .g3, .g4, .stats, .hero-stats { grid-template-columns: 1fr; }
  .logos { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; }
  .hero .wrap { padding-top: 72px; padding-bottom: 64px; }
  .hero h1 { font-size: 34px; }
  .hero-sm h1 { font-size: 30px; }
  .sec-head h2 { font-size: 26px; }
  .logo .lt small { display: none; }
}

/* ==========================================================================
   FDE 详情页扩展组件（五段式范式）
   ========================================================================== */

/* 页面内锚点导航 */
.subnav {
  position: sticky; top: var(--header-h); z-index: 90;
  background: rgba(255, 255, 255, .95);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.subnav .wrap { display: flex; gap: 8px; overflow-x: auto; padding-top: 12px; padding-bottom: 12px; }
.subnav a {
  flex: none; padding: 8px 16px; border-radius: 999px; font-size: 14px;
  color: #3B5069; border: 1px solid var(--line); background: #fff;
  white-space: nowrap; transition: .18s;
}
.subnav a:hover, .subnav a.on { border-color: var(--navy); color: var(--navy); background: var(--tint); font-weight: 600; }

/* 方案价值 */
.vcard {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 28px; border-top: 3px solid var(--cyan); transition: .24s;
}
.vcard:hover { box-shadow: var(--shadow); transform: translateY(-4px); }
.vcard .vnum { font-size: 13px; font-weight: 700; letter-spacing: .18em; color: var(--cyan-dark); margin-bottom: 12px; }
.vcard .vt { font-size: 19px; font-weight: 700; color: var(--ink); margin-bottom: 10px; }
.vcard .vlead { font-size: 14.5px; color: var(--navy); font-weight: 600; margin-bottom: 10px; }
.vcard p { font-size: 14px; color: var(--muted); margin: 0; }

/* 资料下载 */
.dl-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.dl {
  display: flex; gap: 16px; align-items: flex-start; background: #fff;
  border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 20px 22px; transition: .2s;
}
.dl:hover { border-color: #CFDEF0; box-shadow: var(--shadow-sm); }
.dl .dl-ico {
  width: 46px; height: 46px; flex: none; border-radius: 10px;
  background: linear-gradient(135deg, var(--navy), var(--cyan-dark)); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 11px; font-weight: 700; letter-spacing: .04em;
}
.dl .dl-t { font-size: 15px; font-weight: 700; color: var(--ink); }
.dl .dl-d { font-size: 13px; color: var(--muted); margin-top: 4px; }
.dl .dl-tag { display: inline-block; margin-top: 9px; font-size: 12px; font-weight: 600; padding: 3px 10px; border-radius: 999px; background: var(--tint); color: var(--navy); }
.dl .dl-tag.soon { background: #FFF4E5; color: #B26A00; }

/* 视频位 */
.vid-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.vid { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #fff; transition: .22s; }
.vid:hover { box-shadow: var(--shadow); transform: translateY(-3px); }
.vid .vthumb {
  position: relative; height: 152px;
  background: linear-gradient(135deg, var(--navy-dark), var(--navy) 58%, #0E6FA0);
  display: flex; align-items: center; justify-content: center;
}
.vid .vplay {
  width: 54px; height: 54px; border-radius: 50%;
  background: rgba(255, 255, 255, .16); border: 1.5px solid rgba(255, 255, 255, .55);
  display: flex; align-items: center; justify-content: center; color: #fff; font-size: 17px;
}
.vid .vbody { padding: 18px 20px 20px; }
.vid .vt2 { font-size: 15.5px; font-weight: 700; color: var(--ink); }
.vid .vd { font-size: 13px; color: var(--muted); margin-top: 6px; }
.vid .vstate { display: inline-block; margin-top: 11px; font-size: 12px; font-weight: 600; padding: 3px 10px; border-radius: 999px; background: #FFF4E5; color: #B26A00; }

/* 常见问题 */
.faq { display: grid; gap: 12px; }
.faq details { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm); overflow: hidden; transition: .2s; }
.faq details[open] { border-color: #CFDEF0; box-shadow: var(--shadow-sm); }
.faq summary {
  cursor: pointer; list-style: none; padding: 18px 24px;
  font-size: 15.5px; font-weight: 600; color: var(--ink);
  display: flex; gap: 14px; align-items: flex-start;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before {
  content: "Q"; flex: none; width: 24px; height: 24px; border-radius: 6px;
  background: var(--navy); color: #fff; font-size: 12px; font-weight: 700;
  display: flex; align-items: center; justify-content: center; margin-top: 3px;
}
.faq .ans { padding: 0 24px 20px 62px; font-size: 14.5px; color: var(--muted); line-height: 1.85; }
.faq .ans b { color: var(--navy); }
.faq .ans ul { margin: 8px 0 0; padding-left: 18px; }
.faq .ans li { margin-bottom: 5px; }

/* 五段式章节编号 */
.sec-no {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 13px; font-weight: 700; letter-spacing: .16em;
  color: var(--cyan-dark); margin-bottom: 14px;
}
.sec-no i {
  font-style: normal; width: 26px; height: 26px; border-radius: 7px;
  background: var(--navy); color: #fff; font-size: 12.5px;
  display: inline-flex; align-items: center; justify-content: center; letter-spacing: 0;
}

@media (max-width: 1080px) {
  .vid-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
  .dl-grid { grid-template-columns: 1fr; }
  .vid-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .faq .ans { padding-left: 24px; }
}

/* ==========================================================================
   通用标签 pill（客户与场景页 / FDE 落地客户卡片复用）
   ========================================================================== */
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.tag {
  font-size: 12.5px; font-weight: 600;
  padding: 6px 13px; border-radius: 999px;
  background: var(--tint); color: var(--navy);
}

/* ==========================================================================
   通用标签 pill（客户与场景页 / FDE 落地客户卡片复用）
   ========================================================================== */
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.tag {
  font-size: 12.5px; font-weight: 600;
  padding: 6px 13px; border-radius: 999px;
  background: var(--tint); color: var(--navy);
}