@charset "utf-8";
/* CSS Document */

body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background:var(--bg);color:var(--txt);line-height:1.75;overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
.container{max-width:1240px;margin:0 auto;padding:0 28px}

/* ---------- 导航基础 ---------- */
header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(3,5,10,.72);backdrop-filter:blur(20px);
  border-bottom:1px solid var(--line);
}
nav{
  display:flex;align-items:center;justify-content:space-between;
  height:70px;gap:16px;
}
.logo{display:flex;align-items:center;flex:0 0 auto}
.logo img{
  height:36px;
  width:auto;
  max-width:160px;
  object-fit:contain;
}
.nav-links{
  display:flex;gap:34px;
  font-size:14.5px;color:var(--txt2);
  align-items:center;
}
.nav-links a{
  transition:.2s;position:relative;padding:4px 0;white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:-2px;width:0;height:1.5px;
  background:linear-gradient(90deg,var(--cyan),var(--blue));transition:.3s;
}
.nav-links a:hover{color:var(--cyan)}
.nav-links a:hover::after{width:100%}

/* 桌面端 CTA */
.nav-cta{
  padding:9px 22px;border-radius:8px;font-size:14px;font-weight:600;
  background:linear-gradient(135deg,var(--cyan),var(--blue));color:#02040a;
  transition:.25s;white-space:nowrap;flex:0 0 auto;
}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 10px 26px var(--glow)}

/* 移动端菜单里的 CTA，默认隐藏 */
.nav-cta-mobile{display:none}

.menu-btn{
  display:none;
  background:none;border:none;
  color:var(--txt);font-size:26px;cursor:pointer;
  padding:6px 10px;line-height:1;
  flex:0 0 auto;
}

/* ---------- 移动端 ---------- */
@media(max-width:980px){
  nav{height:60px;gap:10px}

  /* 隐藏桌面端导航链接 */
  .nav-links{
    display:none;
    position:fixed;
    top:60px;left:0;right:0;
    flex-direction:column;
    gap:0;
    background:rgba(3,5,10,.98);
    backdrop-filter:blur(20px);
    border-bottom:1px solid var(--line);
    padding:12px 0 20px;
    z-index:99;
  }
  .nav-links.open{display:flex}
  .nav-links a{
    padding:14px 28px;
    font-size:15px;
    border-bottom:1px solid var(--line);
  }
  .nav-links a::after{display:none}
  .nav-links a:hover{background:rgba(56,225,255,.05)}

  /* 移动端 CTA 显示在菜单里 */
  .nav-cta-mobile{
    display:block;
    margin:16px 28px 0;
    padding:12px;
    text-align:center;
    border-radius:9px;
    background:linear-gradient(135deg,var(--cyan),var(--blue));
    color:#02040a !important;
    font-weight:600;
    border-bottom:none !important;
  }

  /* 关键：隐藏桌面端 CTA */
  .nav-cta{display:none}

  /* 菜单按钮显示 */
  .menu-btn{display:block}

  /* Logo 缩小 */
  .logo img{height:30px;max-width:130px}
}

@media(max-width:400px){
  .logo img{height:26px;max-width:110px}
  .container{padding:0 18px}
}
/* ---------- Banner ---------- */
.hero{
  position:relative;
  min-height:100vh;
  display:flex;
  align-items:center;
  padding:140px 0 100px;
  overflow:hidden;
  background:#000;
}

/* 置底背景图 */
.hero-bg{
  position:absolute;
  inset:0;
  z-index:0;
  background-image:url('img/lb.png');
  background-size:cover;
  background-position:center bottom;
  background-repeat:no-repeat;
  filter:brightness(1.15) contrast(1.08);
}

/* 暗色蒙层：保证文字可读 */
.hero-bg-overlay{
  position:absolute;
  inset:0;
  z-index:1;
  background:
    linear-gradient(180deg,
      rgba(3,5,10,.85) 0%,
      rgba(3,5,10,.55) 25%,
      rgba(3,5,10,.35) 50%,
      rgba(3,5,10,.65) 80%,
      rgba(3,5,10,.95) 100%),
    radial-gradient(ellipse at 50% 45%,
      rgba(3,5,10,.15) 0%,
      rgba(3,5,10,.5) 55%,
      rgba(3,5,10,.85) 100%),
    radial-gradient(ellipse at 50% 85%,
      rgba(56,225,255,.12) 0%,
      transparent 60%);
}

/* 文案层 */
.hero-inner{
  position:relative;
  z-index:2;
  width:100%;
  text-align:center;
}

/* Badge */
.hero-badge{
  display:inline-flex;
  flex-direction:column;
  align-items:center;
  gap:6px;
  padding:12px 24px;
  border-radius:14px;
  background:rgba(56,225,255,.07);
  border:1px solid rgba(56,225,255,.28);
  font-size:13px;
  color:var(--ice);
  margin-bottom:32px;
  letter-spacing:1px;
  backdrop-filter:blur(8px);
  line-height:1.6;
}
.hero-badge .dot{
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--cyan);
  box-shadow:0 0 12px var(--cyan);
  animation:pulse 2s infinite;
}
.hero-badge .badge-en{
  font-size:11px;
  letter-spacing:2px;
  color:var(--txt2);
  text-transform:uppercase;
  font-weight:500;
}

/* 主标题 */
.hero h1{
  font-size:clamp(40px,7.5vw,84px);
  line-height:1.12;
  font-weight:900;
  letter-spacing:3px;
  background:linear-gradient(180deg,#ffffff 20%,#a8d8ff 60%,var(--cyan) 100%);
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
  text-shadow:0 0 60px rgba(56,225,255,.2);
}

/* 英文副标题 */
.hero .slogan-sub{
  font-size:clamp(14px,1.8vw,18px);
  color:var(--txt2);
  margin-top:26px;
  letter-spacing:8px;
  font-weight:400;
}
.hero .slogan-sub b{
  color:var(--ice);
  font-weight:600;
}

/* 描述文字 */
.hero-desc{
  font-size:clamp(14.5px,1.7vw,17px);
  color:var(--txt2);
  max-width:800px;
  margin:34px auto 0;
  line-height:1.9;
}

/* 按钮 */
.hero-btns{
  display:flex;
  gap:16px;
  justify-content:center;
  margin-top:46px;
  flex-wrap:wrap;
}

/* 数据条 */
.hero-stats{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  margin-top:72px;
  position:relative;
  z-index:2;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  backdrop-filter:blur(10px);
}
.stat{
  padding:26px 18px;
  text-align:center;
  background:rgba(3,5,10,.5);
  transition:.3s;
}
.stat:hover{background:rgba(56,225,255,.06)}
.stat .num{
  font-size:clamp(24px,3.2vw,34px);
  font-weight:900;
  background:linear-gradient(135deg,var(--ice),var(--cyan),var(--blue));
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
}
.stat .lbl{font-size:13px;color:var(--txt2);margin-top:6px}

/* 响应式 */
@media(max-width:980px){
  .hero-bg{background-position:center center}
  .hero-bg-overlay{
    background:
      linear-gradient(180deg,
        rgba(3,5,10,.88) 0%,
        rgba(3,5,10,.7) 30%,
        rgba(3,5,10,.65) 60%,
        rgba(3,5,10,.95) 100%),
      radial-gradient(ellipse at 50% 50%,
        rgba(3,5,10,.4) 0%,
        rgba(3,5,10,.8) 80%);
  }
}
@media(max-width:600px){
  .hero{padding:120px 0 70px;min-height:auto}
  .hero-bg{background-position:center top}
  .hero-stats{grid-template-columns:1fr 1fr}
  .hero-btns .btn{width:100%;justify-content:center}
  .hero .slogan-sub{letter-spacing:4px}
}

/* 数据条 */
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  margin-top:72px;position:relative;z-index:2;
  background:var(--line);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;backdrop-filter:blur(10px);
}
.stat{padding:26px 18px;text-align:center;background:rgba(3,5,10,.5);transition:.3s}
.stat:hover{background:rgba(56,225,255,.06)}
.stat .num{
  font-size:clamp(24px,3.2vw,34px);font-weight:900;
  background:linear-gradient(135deg,var(--ice),var(--cyan),var(--blue));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.stat .lbl{font-size:13px;color:var(--txt2);margin-top:6px}

/* ---------- 通用 Section ---------- */
section{padding:110px 0;position:relative}
.sec-head{text-align:center;max-width:820px;margin:0 auto 68px}
.sec-tag{
  display:inline-block;font-size:12.5px;letter-spacing:3px;color:var(--cyan);
  text-transform:uppercase;margin-bottom:16px;font-weight:600;
  padding:5px 14px;border:1px solid rgba(56,225,255,.25);border-radius:999px;
  background:rgba(56,225,255,.04);
}
.sec-head h2{font-size:clamp(28px,4.2vw,44px);font-weight:900;letter-spacing:-.5px;line-height:1.25}
.sec-head p{color:var(--txt2);margin-top:18px;font-size:16px;line-height:1.85}

/* ---------- 标语区 ---------- */
.slogan-block{text-align:center;padding:0 0 20px}
.slogan-main{
  font-size:clamp(28px,4.5vw,52px);font-weight:900;letter-spacing:6px;
  background:linear-gradient(120deg,var(--ice),var(--cyan) 50%,var(--blue));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  line-height:1.3;
}
.slogan-desc{
  max-width:780px;margin:28px auto 0;color:var(--txt2);
  font-size:clamp(14.5px,1.7vw,17px);line-height:2;
  padding:28px 32px;border-radius:var(--radius);
  background:linear-gradient(160deg,rgba(56,225,255,.05),rgba(59,109,255,.03));
  border:1px solid var(--line);position:relative;
}
.slogan-desc::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:80px;height:2px;background:linear-gradient(90deg,transparent,var(--cyan),transparent);
}

/* ---------- 品牌定位条 ---------- */
.level-bar{
  display:grid;grid-template-columns:repeat(3,1fr);gap:18px;
  margin-top:60px;
}
.level-item{
  padding:26px 24px;border-radius:14px;text-align:center;
  background:linear-gradient(160deg,var(--card),var(--bg2));
  border:1px solid var(--line);transition:.3s;
}
.level-item:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.level-item .lv{
  font-size:11.5px;letter-spacing:2.5px;color:var(--cyan);font-weight:700;
  text-transform:uppercase;margin-bottom:12px;
}
.level-item h4{font-size:17px;font-weight:800;margin-bottom:8px}
.level-item p{font-size:13px;color:var(--txt2);line-height:1.7}

/* ---------- 优势卡片网格 ---------- */
.adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.adv-card{
  padding:32px 26px;border-radius:16px;position:relative;overflow:hidden;
  background:linear-gradient(160deg,var(--card),var(--bg2));
  border:1px solid var(--line);transition:.35s;
}
.adv-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,transparent,var(--cyan),var(--blue),transparent);
  opacity:0;transition:.35s;
}
.adv-card:hover{transform:translateY(-6px);border-color:var(--line-strong);box-shadow:0 24px 52px rgba(0,0,0,.5)}
.adv-card:hover::before{opacity:1}
.adv-card .ico{
  width:52px;height:52px;border-radius:13px;display:grid;place-items:center;
  font-size:23px;margin-bottom:20px;
  background:rgba(56,225,255,.08);border:1px solid rgba(56,225,255,.2);
  overflow:hidden;
}
.adv-card .ico img{width:100%;height:100%;object-fit:contain}
.adv-card h3{font-size:17.5px;font-weight:800;margin-bottom:10px;letter-spacing:.3px}
.adv-card p{color:var(--txt2);font-size:14px;line-height:1.75}
.adv-card .num-badge{
  position:absolute;top:22px;right:24px;font-size:12px;font-weight:800;
  color:rgba(56,225,255,.35);letter-spacing:1px;
}

/* ---------- 深色块 ---------- */
.dark-block{
  background:linear-gradient(180deg,var(--bg2),var(--bg));
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}

/* ---------- 圆心云 游戏 ---------- */
.games-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:16px}
.game-card{
  padding:24px 20px;border-radius:15px;background:var(--card);
  border:1px solid var(--line);transition:.3s;position:relative;overflow:hidden;
}
.game-card:hover{
  transform:translateY(-5px);border-color:rgba(56,225,255,.4);
  box-shadow:0 18px 44px rgba(0,0,0,.4);background:var(--card2);
}
.game-card .emoji{
  font-size:30px;margin-bottom:14px;display:block;
  width:44px;height:44px;line-height:44px;text-align:center;
  background:rgba(56,225,255,.06);border-radius:11px;border:1px solid var(--line);
  overflow:hidden;
}
.game-card .emoji img{width:100%;height:100%;object-fit:contain;border-radius:11px}
.game-card h4{font-size:16px;font-weight:800;margin-bottom:6px}
.game-card p{font-size:12.5px;color:var(--txt2);line-height:1.65}
.game-card .hot{
  position:absolute;top:16px;right:16px;font-size:10.5px;padding:3px 9px;border-radius:999px;
  background:rgba(56,225,255,.12);color:var(--cyan);border:1px solid rgba(56,225,255,.3);
  letter-spacing:.5px;font-weight:700;
}
.game-card.more{
  display:grid;place-items:center;text-align:center;border-style:dashed;
  border-color:var(--line-strong);
}

/* 对比表 */
.compare-wrap{
  overflow-x:auto;margin-top:60px;border-radius:18px;
  border:1px solid var(--line);background:var(--card);
}
table{width:100%;border-collapse:collapse;min-width:640px;font-size:14.5px}
th,td{padding:17px 24px;text-align:left;border-bottom:1px solid var(--line)}
th{
  background:rgba(56,225,255,.04);font-size:12.5px;letter-spacing:1.5px;
  color:var(--cyan);text-transform:uppercase;font-weight:700;
}
tr:last-child td{border-bottom:none}
td:first-child{color:var(--txt2);font-size:14px}
td.hl{color:var(--cyan);font-weight:600}
tr:hover td{background:rgba(56,225,255,.03)}

/* ---------- CTA ---------- */
.cta-block{
  text-align:center;padding:76px 40px;border-radius:26px;position:relative;overflow:hidden;
  background:linear-gradient(135deg,rgba(56,225,255,.08),rgba(59,109,255,.06));
  border:1px solid rgba(56,225,255,.22);
}
.cta-block::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 50% 0%,rgba(56,225,255,.18),transparent 65%);
}
.cta-block *{position:relative;z-index:2}
.cta-block h2{font-size:clamp(24px,3.8vw,38px);font-weight:900;margin-bottom:16px;letter-spacing:1px}
.cta-block p{color:var(--txt2);max-width:600px;margin:0 auto 34px;font-size:15.5px}

/* ---------- 关于我们 ---------- */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:start}
.about-info{display:grid;gap:14px}
.info-row{
  display:flex;gap:16px;padding:17px 22px;border-radius:13px;
  background:rgba(255,255,255,.028);border:1px solid var(--line);
  transition:.25s;
}
.info-row:hover{border-color:var(--line-strong);background:rgba(56,225,255,.03)}
.info-row .k{color:var(--txt2);font-size:13.5px;min-width:96px}
.info-row .v{font-size:14.5px;font-weight:500}
.about-list{list-style:none;display:grid;gap:14px;margin-top:22px}
.about-list li{
  display:flex;gap:14px;padding:16px 18px;border-radius:12px;
  background:rgba(255,255,255,.028);border:1px solid var(--line);
}
.about-list .fi{
  width:36px;height:36px;flex:none;border-radius:10px;display:grid;place-items:center;
  background:rgba(56,225,255,.08);font-size:17px;overflow:hidden;
}
.about-list .fi img{width:100%;height:100%;object-fit:contain}
.about-list b{display:block;font-size:15px;margin-bottom:3px}
.about-list span{font-size:13.5px;color:var(--txt2)}

/* ---------- 页脚 ---------- */
footer{background:var(--bg2);border-top:1px solid var(--line);padding:70px 0 32px}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:48px;margin-bottom:52px}
.foot-brand p{color:var(--txt2);font-size:14px;margin-top:18px;max-width:340px;line-height:1.8}
.foot-col h5{font-size:14px;font-weight:800;margin-bottom:20px;letter-spacing:.5px;color:var(--ice)}
.foot-col a,.foot-col li{
  display:block;color:var(--txt2);font-size:14px;margin-bottom:12px;
  transition:.2s;list-style:none;
}
.foot-col a:hover{color:var(--cyan)}
.foot-bottom{
  border-top:1px solid var(--line);padding-top:28px;
  display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;
  font-size:13px;color:var(--txt2);
}
.foot-bottom .links{display:flex;gap:22px;flex-wrap:wrap}
.foot-bottom a:hover{color:var(--cyan)}

/* ---------- 响应式 ---------- */
@media(max-width:1080px){
  .adv-grid{grid-template-columns:1fr 1fr}
  .level-bar{grid-template-columns:1fr}
}
@media(max-width:980px){
  .nav-links{display:none}
  .menu-btn{display:block}
  .about-grid{grid-template-columns:1fr;gap:40px}
  .foot-grid{grid-template-columns:1fr 1fr}
  .hero-stats{grid-template-columns:1fr 1fr}
}
@media(max-width:600px){
  section{padding:72px 0}
  .hero{padding:120px 0 70px;min-height:auto}
  .adv-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .games-grid{grid-template-columns:1fr 1fr}
  .hero-btns .btn{width:100%;justify-content:center}
  .slogan-main{letter-spacing:3px}
}

	/* ---------- 关于我们 · 横向动效时间轴 ---------- */

/* 顶部一句话定位 */
.about-intro{
  max-width:860px;margin:0 auto 70px;text-align:center;
  padding:34px 40px;border-radius:18px;
  background:linear-gradient(160deg,rgba(56,225,255,.05),rgba(59,109,255,.03));
  border:1px solid var(--line);
  position:relative;overflow:hidden;
}
.about-intro::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:100px;height:2px;
  background:linear-gradient(90deg,transparent,var(--cyan),transparent);
}
.about-intro h3{
  font-size:clamp(20px,2.6vw,28px);font-weight:800;margin-bottom:18px;
  background:linear-gradient(120deg,var(--ice),var(--cyan),var(--blue));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.about-intro p{color:var(--txt2);font-size:15.5px;line-height:1.95}

/* 横向时间轴容器 */
.timeline-h-wrap{
  position:relative;margin:0 0 80px;
  overflow-x:auto;overflow-y:hidden;
  padding:40px 0 30px;
  -webkit-overflow-scrolling:touch;
  scrollbar-width:thin;
  scrollbar-color:rgba(56,225,255,.3) transparent;
}
.timeline-h-wrap::-webkit-scrollbar{height:6px}
.timeline-h-wrap::-webkit-scrollbar-track{background:transparent}
.timeline-h-wrap::-webkit-scrollbar-thumb{
  background:rgba(56,225,255,.3);border-radius:3px;
}
.timeline-h-wrap::-webkit-scrollbar-thumb:hover{background:rgba(56,225,255,.5)}

/* 轨道 */
.timeline-h-track{
  position:relative;display:flex;gap:0;
  min-width:max-content;padding:0 20px;
}
.timeline-h-track::before{
  content:"";position:absolute;top:52px;left:40px;right:40px;height:2px;
  background:linear-gradient(90deg,
    transparent 0%,
    var(--cyan) 8%,
    var(--blue) 50%,
    var(--cyan) 92%,
    transparent 100%);
  opacity:.4;
}

/* 时间轴节点 */
.tl-h-item{
  position:relative;flex:0 0 220px;
  display:flex;flex-direction:column;align-items:center;
  text-align:center;padding:0 16px;
  opacity:0;transform:translateY(20px);
  transition:opacity .6s ease, transform .6s ease;
}
.tl-h-item.visible{opacity:1;transform:translateY(0)}

/* 节点圆点 */
.tl-h-dot{
  position:relative;width:16px;height:16px;border-radius:50%;
  background:var(--bg);border:2px solid var(--cyan);
  box-shadow:0 0 18px var(--glow);
  margin-bottom:22px;z-index:2;
  transition:.3s;
}
.tl-h-dot::after{
  content:"";position:absolute;inset:-7px;border-radius:50%;
  border:1px solid rgba(56,225,255,.25);
  animation:tlHPulse 2.5s infinite;
}
@keyframes tlHPulse{
  0%,100%{transform:scale(1);opacity:.6}
  50%{transform:scale(1.35);opacity:0}
}
.tl-h-item:hover .tl-h-dot{
  background:var(--cyan);
  box-shadow:0 0 28px var(--cyan);
  transform:scale(1.15);
}

/* 时间文字 */
.tl-h-time{
  font-size:14px;font-weight:800;color:var(--cyan);
  letter-spacing:1.5px;margin-bottom:14px;
}

/* 内容卡片 */
.tl-h-content{
  padding:18px 16px;border-radius:13px;
  background:linear-gradient(160deg,var(--card),var(--bg2));
  border:1px solid var(--line);
  transition:.3s;
  width:100%;
}
.tl-h-item:hover .tl-h-content{
  border-color:rgba(56,225,255,.35);
  background:var(--card2);
  transform:translateY(-4px);
  box-shadow:0 16px 36px rgba(0,0,0,.4);
}
.tl-h-content h4{
  font-size:15px;font-weight:800;margin-bottom:8px;color:var(--txt);
}
.tl-h-content p{
  font-size:12.5px;color:var(--txt2);line-height:1.7;
}

/* 天蚁网络介绍 */
.about-detail{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  margin-top:20px;
}
.about-detail-item{
  padding:28px 24px;border-radius:16px;
  background:linear-gradient(160deg,var(--card),var(--bg2));
  border:1px solid var(--line);
  transition:.35s;position:relative;overflow:hidden;
}
.about-detail-item::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,transparent,var(--cyan),transparent);
  opacity:0;transition:.35s;
}
.about-detail-item:hover{
  transform:translateY(-6px);
  border-color:var(--line-strong);
  box-shadow:0 22px 48px rgba(0,0,0,.45);
}
.about-detail-item:hover::before{opacity:1}
.about-detail-item .ad-ico{
  display:grid;place-items:center;
  width:48px;height:48px;border-radius:13px;
  background:rgba(56,225,255,.08);
  border:1px solid rgba(56,225,255,.2);
  font-size:22px;margin-bottom:18px;
  overflow:hidden;
}
.about-detail-item .ad-ico img{width:100%;height:100%;object-fit:contain}
.about-detail-item h4{
  font-size:16px;font-weight:800;margin-bottom:10px;
}
.about-detail-item p{
  font-size:13.5px;color:var(--txt2);line-height:1.75;
}

/* 响应式 */
@media(max-width:1080px){
  .about-detail{grid-template-columns:1fr 1fr}
}
@media(max-width:600px){
  .about-detail{grid-template-columns:1fr}
  .about-intro{padding:26px 22px}
  .tl-h-item{flex:0 0 190px}
}