:root{
  --primary:#2b3fd4;
  --primary-dark:#1a2a9e;
  --primary-deep:#101a52;
  --primary-soft:#eef1fd;
  --accent:#ff6b2c;
  --accent-dark:#dd4f10;
  --bg:#f4f6fc;
  --ink:#12162b;
  --ink-soft:#3c4560;
  --muted:#6c7588;
  --line:#e4e8f4;
  --white:#ffffff;
  --radius:14px;
  --shadow:0 16px 38px rgba(19,28,74,.10);
  --shadow-lg:0 28px 64px rgba(19,28,74,.18);
  --wrap:1200px;
}

*,*::before,*::after{box-sizing:border-box;}

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

body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  overflow-x:hidden;
}

img{max-width:100%;display:block;}

a{color:inherit;text-decoration:none;}

h1,h2,h3,h4,h5{margin:0 0 14px;line-height:1.35;font-weight:700;letter-spacing:.5px;}

p{margin:0 0 16px;}

ul{margin:0;padding:0;list-style:none;}

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

.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:14px 30px;
  border:1px solid transparent;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  font-family:inherit;
  letter-spacing:.6px;
  cursor:pointer;
  transition:transform .3s ease,box-shadow .3s ease,background .3s ease,color .3s ease,border-color .3s ease;
}
.btn:hover{transform:translateY(-3px);}
.btn i{font-size:14px;}

a.btn{
  color:var(--white);
  background:linear-gradient(135deg,var(--primary) 0%,#4a5ee8 100%);
  box-shadow:0 14px 30px rgba(43,63,212,.28);
}
a.btn:hover{box-shadow:0 20px 40px rgba(43,63,212,.38);}

button.btn{
  color:var(--white);
  background:linear-gradient(135deg,var(--accent) 0%,var(--accent-dark) 100%);
  box-shadow:0 14px 30px rgba(255,107,44,.28);
}

a.btn[data-variant="accent"]{background:linear-gradient(135deg,var(--accent) 0%,var(--accent-dark) 100%);box-shadow:0 14px 30px rgba(255,107,44,.3);}
a.btn[data-variant="accent"]:hover{box-shadow:0 20px 40px rgba(255,107,44,.4);}

a.btn[data-variant="ghost"]{
  color:var(--white);
  background:rgba(255,255,255,.08);
  border-color:rgba(255,255,255,.45);
  box-shadow:none;
}
a.btn[data-variant="ghost"]:hover{background:rgba(255,255,255,.18);}

a.btn[data-variant="line"]{
  color:var(--primary);
  background:var(--white);
  border-color:rgba(43,63,212,.22);
  box-shadow:none;
}
a.btn[data-variant="line"]:hover{border-color:var(--primary);}

/* ============ 顶部导航 ============ */
header#topbar{
  position:sticky;
  top:0;
  z-index:90;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(160%) blur(14px);
  border-bottom:1px solid transparent;
  transition:box-shadow .3s ease,border-color .3s ease;
}
header#topbar[data-stuck="true"]{border-bottom-color:var(--line);box-shadow:0 12px 30px rgba(19,28,74,.08);}
header#topbar .container{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:74px;}

#brandmark{display:flex;align-items:center;gap:12px;}
#brandmark img{width:42px;height:42px;object-fit:contain;}
#brandmark b{display:block;font-size:18px;letter-spacing:.6px;line-height:1.2;}
#brandmark span{display:block;font-size:12px;color:var(--muted);letter-spacing:2px;}

#mainnav ul{display:flex;align-items:center;gap:4px;}
#mainnav li a{
  display:block;
  padding:10px 15px;
  border-radius:10px;
  font-size:15px;
  font-weight:500;
  color:var(--ink-soft);
  transition:color .25s ease,background .25s ease;
}
#mainnav li a:hover{color:var(--primary);background:var(--primary-soft);}
#mainnav li a[aria-current="page"]{color:var(--primary);background:var(--primary-soft);}

#navtoggle{
  display:none;
  width:44px;
  height:44px;
  border:1px solid var(--line);
  border-radius:12px;
  background:var(--white);
  color:var(--primary);
  font-size:18px;
  cursor:pointer;
}

/* ============ 首屏 ============ */
#home{
  position:relative;
  min-height:640px;
  display:flex;
  align-items:center;
  overflow:hidden;
  padding:120px 0 110px;
}
#home [data-slide]{
  position:absolute;
  inset:0;
  background-size:cover;
  background-position:center;
  opacity:0;
  animation:heroFade 18s ease-in-out infinite;
  will-change:opacity,transform;
}
#home [data-slide="1"]{background-image:url(/images/hero-1.png);}
#home [data-slide="2"]{background-image:url(/images/hero-2.png);animation-delay:9s;}
#home::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(11,16,48,.86) 0%,rgba(11,16,48,.62) 45%,rgba(11,16,48,.92) 100%);
}
@keyframes heroFade{
  0%{opacity:0;transform:scale(1.08);}
  6%{opacity:1;transform:scale(1.02);}
  46%{opacity:1;transform:scale(1);}
  52%{opacity:0;transform:scale(1.05);}
  100%{opacity:0;transform:scale(1.08);}
}
#home .container{position:relative;z-index:2;text-align:center;color:var(--white);}

#herobadge{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:9px 22px;
  border:1px solid rgba(255,255,255,.35);
  border-radius:999px;
  background:rgba(255,255,255,.1);
  font-size:13px;
  letter-spacing:2px;
  margin-bottom:26px;
}
#herobadge i{color:var(--accent);}

#home h1{
  font-size:clamp(32px,5.4vw,62px);
  line-height:1.2;
  max-width:960px;
  margin:0 auto 22px;
  text-shadow:0 10px 40px rgba(0,0,0,.35);
}
#home h1 em{font-style:normal;color:var(--accent);}

#herotext{max-width:720px;margin:0 auto 34px;font-size:17px;color:rgba(255,255,255,.86);}

#heroactions{display:flex;flex-wrap:wrap;gap:16px;justify-content:center;}

#herostats{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:18px;
  max-width:880px;
  margin:56px auto 0;
}
#herostats div{
  padding:20px 12px;
  border:1px solid rgba(255,255,255,.18);
  border-radius:var(--radius);
  background:rgba(255,255,255,.07);
  backdrop-filter:blur(6px);
}
#herostats strong{display:block;font-size:30px;color:var(--white);line-height:1.2;}
#herostats span{font-size:13px;color:rgba(255,255,255,.7);letter-spacing:1px;}

/* ============ 区块通用 ============ */
section{position:relative;padding:92px 0;}
section header{text-align:center;margin-bottom:54px;}
section header p:first-child{
  display:inline-block;
  margin:0 0 14px;
  padding:6px 16px;
  border-radius:999px;
  background:var(--primary-soft);
  color:var(--primary);
  font-size:13px;
  font-weight:600;
  letter-spacing:2px;
}
section header h2{font-size:clamp(26px,3.4vw,40px);margin-bottom:14px;}
section header p:last-child{max-width:720px;margin:0 auto;color:var(--muted);font-size:16px;}

[data-reveal]{opacity:0;transform:translateY(30px);transition:opacity .7s cubic-bezier(.2,.7,.3,1),transform .7s cubic-bezier(.2,.7,.3,1);}
[data-reveal][data-shown="true"]{opacity:1;transform:none;}
[data-reveal][data-delay="90"]{transition-delay:.09s;}
[data-reveal][data-delay="180"]{transition-delay:.18s;}
[data-reveal][data-delay="270"]{transition-delay:.27s;}

/* ============ 关于我们 ============ */
.story-m3d{background:var(--white);}
.story-m3d .container{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:56px;align-items:center;}
.story-m3d figure{margin:0;position:relative;}
.story-m3d figure img{width:100%;border-radius:var(--radius);box-shadow:var(--shadow-lg);}
.story-m3d figure::after{
  content:"S16";
  position:absolute;
  right:-18px;
  bottom:-18px;
  width:96px;
  height:96px;
  border-radius:22px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  color:var(--white);
  font-size:24px;
  font-weight:700;
  letter-spacing:1px;
  box-shadow:var(--shadow);
}
.story-m3d h3{font-size:22px;margin-top:6px;}
.story-m3d ul{margin-top:22px;display:grid;gap:14px;}
.story-m3d ul li{position:relative;padding-left:34px;color:var(--ink-soft);}
.story-m3d ul li::before{
  content:"\f00c";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  position:absolute;
  left:0;
  top:2px;
  width:22px;
  height:22px;
  border-radius:50%;
  background:var(--primary-soft);
  color:var(--primary);
  font-size:10px;
  display:flex;
  align-items:center;
  justify-content:center;
}

/* ============ 服务 ============ */
.expertise-m3d{background:var(--primary-soft);}
.expertise-m3d ul{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;}
.expertise-m3d li{
  padding:30px 26px;
  background:var(--white);
  border-radius:var(--radius);
  border:1px solid rgba(43,63,212,.08);
  box-shadow:var(--shadow);
  transition:transform .35s ease,box-shadow .35s ease;
}
.expertise-m3d li:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);}
.expertise-m3d li i{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:52px;
  height:52px;
  border-radius:16px;
  background:linear-gradient(135deg,var(--primary),#5466ea);
  color:var(--white);
  font-size:20px;
  margin-bottom:18px;
}
.expertise-m3d li h3{font-size:18px;}
.expertise-m3d li p{margin:0;font-size:14.5px;color:var(--muted);}

/* ============ 优势 ============ */
.edge-m3d{background:var(--bg);}
.edge-m3d ul{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.edge-m3d li{
  position:relative;
  padding:34px 28px;
  border-radius:var(--radius);
  background:var(--white);
  border:1px solid var(--line);
  overflow:hidden;
  transition:transform .35s ease,border-color .35s ease;
}
.edge-m3d li::before{
  content:"";
  position:absolute;
  left:0;
  top:0;
  height:3px;
  width:100%;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .4s ease;
}
.edge-m3d li:hover{transform:translateY(-8px);border-color:rgba(43,63,212,.25);}
.edge-m3d li:hover::before{transform:scaleX(1);}
.edge-m3d li h3{font-size:18px;display:flex;align-items:center;gap:10px;}
.edge-m3d li h3 i{color:var(--accent);}
.edge-m3d li p{margin:0;font-size:14.5px;color:var(--muted);}

/* ============ 案例 ============ */
.showcase-m3d{background:#f0f2f8;}
.showcase-m3d ul{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px;}
.showcase-m3d li{
  background:var(--white);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform .35s ease,box-shadow .35s ease;
}
.showcase-m3d li:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);}
.showcase-m3d li img{width:100%;height:230px;object-fit:cover;}
.showcase-m3d li div{padding:24px 24px 26px;}
.showcase-m3d li h3{font-size:18px;margin-bottom:10px;}
.showcase-m3d li p{margin:0 0 14px;font-size:14.5px;color:var(--muted);}
.showcase-m3d li small{display:inline-flex;align-items:center;gap:8px;color:var(--muted);font-size:13px;}
.showcase-m3d li small + small{margin-left:16px;}
.showcase-m3d li small i{color:var(--primary);}

/* ============ 首页文章 ============ */
.updates-m3d{background:var(--white);}
.updates-m3d ul{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px;}
.updates-m3d li{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  transition:transform .35s ease,box-shadow .35s ease;
}
.updates-m3d li:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);}
.updates-m3d li img{width:100%;height:210px;object-fit:cover;}
.updates-m3d li div{padding:24px;}
.updates-m3d li h3{font-size:18px;line-height:1.5;margin-bottom:10px;}
.updates-m3d li p{margin:0 0 16px;font-size:14.5px;color:var(--muted);}
.updates-m3d li small{display:inline-block;margin-right:16px;color:var(--muted);font-size:13px;}
.updates-m3d li small i{margin-right:6px;color:var(--primary);}

/* ============ 工作流程 ============ */
.journey-m3d{background:var(--bg);}
.journey-m3d ol{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:22px;position:relative;padding:0;}
.journey-m3d ol li{
  position:relative;
  padding:30px 22px 26px;
  background:var(--white);
  border-radius:var(--radius);
  border:1px solid var(--line);
  text-align:center;
  transition:transform .35s ease,box-shadow .35s ease;
}
.journey-m3d ol li:hover{transform:translateY(-8px);box-shadow:var(--shadow);}
.journey-m3d ol li span{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:58px;
  height:58px;
  border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  color:var(--white);
  font-size:20px;
  font-weight:700;
  margin-bottom:16px;
}
.journey-m3d ol li h3{font-size:17px;margin-bottom:8px;}
.journey-m3d ol li p{margin:0;font-size:14px;color:var(--muted);}

/* ============ 团队 ============ */
.crew-m3d{background:var(--white);}
.crew-m3d ul{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px;}
.crew-m3d li{
  padding:28px 24px;
  border-radius:var(--radius);
  background:var(--bg);
  border:1px solid var(--line);
  text-align:center;
  transition:transform .35s ease,box-shadow .35s ease,background .35s ease;
}
.crew-m3d li:hover{transform:translateY(-8px);background:var(--white);box-shadow:var(--shadow-lg);}
.crew-m3d li img{
  width:118px;
  height:118px;
  object-fit:cover;
  border-radius:0;
  margin:0 auto 18px;
  border:4px solid var(--white);
  box-shadow:var(--shadow);
}
.crew-m3d li h3{font-size:18px;margin-bottom:4px;}
.crew-m3d li small{display:block;color:var(--accent);font-size:13px;letter-spacing:1px;margin-bottom:10px;}
.crew-m3d li p{margin:0;font-size:14px;color:var(--muted);}

/* ============ 评论 ============ */
.voices-m3d{background:var(--bg);}
.voices-m3d ul{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:26px;}
.voices-m3d li{
  display:flex;
  gap:20px;
  padding:28px;
  background:var(--white);
  border-radius:var(--radius);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  transition:transform .35s ease;
}
.voices-m3d li:hover{transform:translateY(-6px);}
.voices-m3d li img{
  width:66px;
  height:66px;
  border-radius:50%;
  object-fit:cover;
  flex:0 0 auto;
  border:3px solid var(--primary-soft);
}
.voices-m3d li h3{font-size:17px;margin-bottom:2px;display:flex;align-items:center;gap:10px;}
.voices-m3d li h3 em{font-style:normal;font-size:13px;color:var(--muted);font-weight:400;}
.voices-m3d li p{margin:10px 0 0;font-size:14.5px;color:var(--ink-soft);}
.voices-m3d li div > div:first-child{margin-top:6px;color:var(--accent);font-size:13px;letter-spacing:2px;}

/* ============ 问答 ============ */
.queries-m3d{background:var(--white);}
.queries-m3d .container{max-width:920px;}
.queries-m3d ul{display:grid;gap:16px;}
.queries-m3d li{
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--white);
  overflow:hidden;
  transition:border-color .3s ease,box-shadow .3s ease;
}
.queries-m3d li:hover{border-color:rgba(43,63,212,.28);}
.queries-m3d li button{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:22px 26px;
  background:transparent;
  border:0;
  text-align:left;
  font-size:16.5px;
  font-weight:600;
  font-family:inherit;
  color:var(--ink);
  cursor:pointer;
}
.queries-m3d li button i{color:var(--primary);transition:transform .3s ease;}
.queries-m3d li button[aria-expanded="true"] i{transform:rotate(45deg);}
.queries-m3d li div p{
  margin:0;
  padding:0 26px 24px;
  color:var(--muted);
  font-size:15px;
  max-height:0;
  overflow:hidden;
  transition:max-height .4s ease,padding .4s ease;
}
.queries-m3d li div[data-open="true"] p{max-height:280px;}

/* ============ 合作伙伴 ============ */
.allies-m3d{background:var(--bg);}
.allies-m3d ul{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:18px;}
.allies-m3d li{
  height:104px;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:18px;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius);
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.allies-m3d li:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:rgba(43,63,212,.25);}
.allies-m3d li img{max-height:64px;width:auto;filter:grayscale(1);opacity:.75;transition:filter .3s ease,opacity .3s ease;}
.allies-m3d li:hover img{filter:grayscale(0);opacity:1;}

/* ============ 荣誉 ============ */
.laurels-m3d{background:var(--white);}
.laurels-m3d ul{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;}
.laurels-m3d li{
  padding:30px 24px;
  border-radius:var(--radius);
  background:var(--bg);
  border:1px solid var(--line);
  text-align:center;
  transition:transform .35s ease,box-shadow .35s ease;
}
.laurels-m3d li:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);}
.laurels-m3d li strong{display:block;font-size:42px;line-height:1.1;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent;}
.laurels-m3d li span{display:block;font-size:15px;font-weight:600;margin-top:8px;}
.laurels-m3d li p{margin:6px 0 0;font-size:13.5px;color:var(--muted);}

/* ============ 联系我们 ============ */
.reach-m3d{background:var(--bg);}
.reach-m3d .container{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:44px;align-items:start;}
.reach-m3d ul{display:grid;gap:18px;margin-top:24px;}
.reach-m3d ul li{
  display:flex;
  gap:16px;
  align-items:flex-start;
  padding:20px 22px;
  background:var(--white);
  border-radius:var(--radius);
  border:1px solid var(--line);
}
.reach-m3d ul li i{
  flex:0 0 auto;
  width:44px;
  height:44px;
  border-radius:14px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:var(--primary-soft);
  color:var(--primary);
}
.reach-m3d ul li strong{display:block;font-size:15px;}
.reach-m3d ul li span{display:block;font-size:14px;color:var(--muted);}

#contactform{
  padding:34px;
  background:var(--white);
  border-radius:var(--radius);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
#contactform h3{font-size:20px;margin-bottom:6px;}
#contactform > p{font-size:14px;color:var(--muted);margin-bottom:22px;}
#contactform div{margin-bottom:16px;}
#contactform label{display:block;font-size:13.5px;font-weight:600;margin-bottom:6px;color:var(--ink-soft);}
#contactform input,
#contactform textarea{
  width:100%;
  padding:13px 16px;
  border:1px solid var(--line);
  border-radius:12px;
  font-family:inherit;
  font-size:15px;
  background:var(--bg);
  transition:border-color .25s ease,box-shadow .25s ease;
}
#contactform input:focus,
#contactform textarea:focus{outline:0;border-color:var(--primary);box-shadow:0 0 0 3px rgba(43,63,212,.12);}
#contactform textarea{min-height:130px;resize:vertical;}
#contactform button.btn{width:100%;margin-top:6px;}
#formnotice{display:block;margin-top:14px;font-size:12.5px;color:var(--muted);text-align:center;}

/* ============ CTA ============ */
.cta-m3d{
  background:linear-gradient(135deg,var(--primary-deep) 0%,var(--primary) 58%,#3f52dd 100%);
  color:var(--white);
  text-align:center;
  overflow:hidden;
}
.cta-m3d::before{
  content:"";
  position:absolute;
  width:420px;
  height:420px;
  border-radius:50%;
  right:-140px;
  top:-160px;
  background:radial-gradient(circle,rgba(255,107,44,.45),transparent 70%);
}
.cta-m3d .container{position:relative;z-index:2;}
.cta-m3d header{margin-bottom:30px;}
.cta-m3d header p:first-child{background:rgba(255,255,255,.14);color:var(--white);}
.cta-m3d header h2{color:var(--white);font-size:clamp(26px,3.6vw,44px);}
.cta-m3d header p:last-child{color:rgba(255,255,255,.8);}
.cta-m3d #ctaactions{display:flex;flex-wrap:wrap;gap:16px;justify-content:center;margin-top:8px;}

/* ============ 列表页 ============ */
.listing-m3d{background:var(--bg);}
.listing-m3d > header{
  text-align:center;
  margin-bottom:46px;
  padding:52px 32px;
  border-radius:22px;
  background:linear-gradient(135deg,var(--primary-deep),var(--primary));
  color:var(--white);
}
.listing-m3d > header p:first-child{background:rgba(255,255,255,.14);color:var(--white);}
.listing-m3d > header h2{color:var(--white);}
.listing-m3d > header p:last-child{color:rgba(255,255,255,.8);}
.listing-m3d ul{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px;}
.listing-m3d li{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  transition:transform .35s ease,box-shadow .35s ease;
}
.listing-m3d li:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);}
.listing-m3d li img{width:100%;height:220px;object-fit:cover;}
.listing-m3d li div{padding:24px;}
.listing-m3d li h3{font-size:18px;line-height:1.5;margin-bottom:10px;}
.listing-m3d li p{margin:0 0 16px;font-size:14.5px;color:var(--muted);}
.listing-m3d li small{display:inline-block;margin-right:16px;font-size:13px;color:var(--muted);}
.listing-m3d li small i{margin-right:6px;color:var(--primary);}
.listing-m3d li h3 a{color:var(--ink);transition:color .25s ease;}
.listing-m3d li h3 a:hover{color:var(--primary);}
.listing-m3d li div > a{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-top:16px;
  font-size:14px;
  font-weight:600;
  color:var(--primary);
}
.listing-m3d li div > a i{transition:transform .3s ease;}
.listing-m3d li div > a:hover i{transform:translateX(5px);}

/* ============ 详情页 ============ */
.reading-m3d{background:var(--bg);}
#readingtop{
  padding:64px 0 44px;
  background:linear-gradient(135deg,var(--primary-deep),var(--primary));
  color:var(--white);
  text-align:center;
}
#readingtop h1{font-size:clamp(26px,4vw,44px);margin-bottom:16px;}
#readingmeta{display:flex;flex-wrap:wrap;gap:22px;justify-content:center;font-size:14px;color:rgba(255,255,255,.82);}
#readingmeta span{display:inline-flex;align-items:center;gap:8px;}

.reading-m3d article{
  max-width:900px;
  margin:0 auto;
  background:var(--white);
  border-radius:var(--radius);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  overflow:hidden;
}
.reading-m3d article > img{width:100%;max-height:460px;object-fit:cover;}
#readingbody{padding:40px 44px 46px;}
#readingbody h2{font-size:24px;margin:30px 0 14px;}
#readingbody h3{font-size:19px;margin:24px 0 12px;}
#readingbody p{color:var(--ink-soft);margin-bottom:16px;}
#readingbody ul{margin:0 0 18px;display:grid;gap:10px;}
#readingbody ul li{position:relative;padding-left:26px;color:var(--ink-soft);}
#readingbody ul li::before{content:"";position:absolute;left:4px;top:12px;width:8px;height:8px;border-radius:50%;background:var(--accent);}
#readingbody img{border-radius:12px;margin:10px 0 18px;}
#readingbody table{width:100%;border-collapse:collapse;margin-bottom:20px;font-size:14.5px;}
#readingbody th,#readingbody td{border:1px solid var(--line);padding:11px 14px;text-align:left;}
#readingbody th{background:var(--primary-soft);color:var(--primary-deep);}

#postnav{
  max-width:900px;
  margin:34px auto 0;
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:22px;
}
#postnav a{
  display:block;
  padding:22px 26px;
  border-radius:var(--radius);
  background:var(--white);
  border:1px solid var(--line);
  transition:transform .3s ease,box-shadow .3s ease;
}
#postnav a:hover{transform:translateY(-5px);box-shadow:var(--shadow);}
#postnav small{display:block;font-size:13px;color:var(--muted);margin-bottom:6px;}
#postnav strong{font-size:16px;}

/* ============ 页脚 ============ */
footer{background:#0d1230;color:rgba(255,255,255,.72);padding:70px 0 0;}
footer .container{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr) minmax(0,1fr) minmax(0,1.2fr);gap:40px;}
footer h3{color:var(--white);font-size:17px;margin-bottom:20px;position:relative;padding-bottom:12px;}
footer h3::after{content:"";position:absolute;left:0;bottom:0;width:42px;height:3px;border-radius:3px;background:linear-gradient(90deg,var(--primary),var(--accent));}
#footbrand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
#footbrand img{width:46px;height:46px;object-fit:contain;}
#footbrand b{display:block;color:var(--white);font-size:18px;line-height:1.2;}
#footbrand span{display:block;font-size:12px;color:rgba(255,255,255,.5);letter-spacing:2px;}
#footabout{font-size:14px;line-height:1.9;}
footer ul{display:grid;gap:11px;}
footer ul a{font-size:14px;transition:color .25s ease,padding-left .25s ease;}
footer ul a:hover{color:var(--accent);padding-left:6px;}
#footcontact li{display:flex;gap:12px;align-items:flex-start;font-size:14px;margin-bottom:12px;}
#footcontact i{color:var(--accent);margin-top:5px;}
#social{display:flex;gap:12px;margin-top:20px;}
#social a{
  width:40px;
  height:40px;
  border-radius:12px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:rgba(255,255,255,.08);
  color:var(--white);
  transition:background .25s ease,transform .25s ease;
}
#social a:hover{background:var(--primary);transform:translateY(-4px);}
#copyright{
  margin-top:52px;
  padding:22px 0;
  border-top:1px solid rgba(255,255,255,.1);
  text-align:center;
  font-size:13.5px;
}
#copyright a{color:var(--accent);}

/* ============ 返回顶部 ============ */
#toTop{
  position:fixed;
  right:26px;
  bottom:30px;
  width:48px;
  height:48px;
  border-radius:50%;
  border:0;
  background:var(--primary);
  color:var(--white);
  font-size:17px;
  cursor:pointer;
  opacity:0;
  visibility:hidden;
  transform:translateY(16px);
  transition:opacity .3s ease,transform .3s ease,visibility .3s ease,background .3s ease;
  box-shadow:0 14px 30px rgba(43,63,212,.35);
  z-index:80;
}
#toTop[data-show="true"]{opacity:1;visibility:visible;transform:none;}
#toTop:hover{background:var(--accent);}

/* ============ 响应式 ============ */
@media (max-width:1100px){
  .expertise-m3d ul{grid-template-columns:repeat(3,minmax(0,1fr));}
  .allies-m3d ul{grid-template-columns:repeat(4,minmax(0,1fr));}
  .laurels-m3d ul{grid-template-columns:repeat(2,minmax(0,1fr));}
  .journey-m3d ol{grid-template-columns:repeat(3,minmax(0,1fr));}
  footer .container{grid-template-columns:repeat(2,minmax(0,1fr));}
}

@media (max-width:900px){
  #navtoggle{display:inline-flex;align-items:center;justify-content:center;}
  #mainnav{
    position:absolute;
    left:0;
    right:0;
    top:100%;
    background:var(--white);
    border-bottom:1px solid var(--line);
    box-shadow:0 20px 40px rgba(19,28,74,.1);
    display:none;
  }
  header#topbar[data-open="true"] #mainnav{display:block;}
  #mainnav ul{flex-direction:column;align-items:stretch;padding:10px 24px 20px;gap:2px;}
  #mainnav li a{padding:13px 12px;}
  .story-m3d .container,
  .reach-m3d .container{grid-template-columns:minmax(0,1fr);gap:34px;}
  .story-m3d figure::after{right:14px;bottom:-14px;width:80px;height:80px;font-size:20px;}
  .crew-m3d ul,
  .edge-m3d ul,
  .updates-m3d ul,
  .showcase-m3d ul,
  .listing-m3d ul{grid-template-columns:repeat(2,minmax(0,1fr));}
  .voices-m3d ul{grid-template-columns:minmax(0,1fr);}
  .journey-m3d ol{grid-template-columns:repeat(2,minmax(0,1fr));}
  #herostats{grid-template-columns:repeat(2,minmax(0,1fr));}
  #postnav{grid-template-columns:minmax(0,1fr);}
}

@media (max-width:640px){
  section{padding:64px 0;}
  .container{padding:0 18px;}
  .expertise-m3d ul,
  .edge-m3d ul,
  .updates-m3d ul,
  .showcase-m3d ul,
  .listing-m3d ul,
  .crew-m3d ul,
  .journey-m3d ol,
  .allies-m3d ul,
  .laurels-m3d ul{grid-template-columns:minmax(0,1fr);}
  footer .container{grid-template-columns:minmax(0,1fr);gap:32px;}
  #heroactions{flex-direction:column;}
  #heroactions .btn{width:100%;}
  #home{min-height:560px;padding:96px 0 80px;}
  #readingbody{padding:28px 22px 34px;}
  #contactform{padding:24px;}
  #brandmark b{font-size:16px;}
  .listing-m3d > header{padding:40px 20px;}
}