/*
无殇星游官网 main.css 完整版
深蓝星空科技：卡片hover上浮+蓝色发光光晕
*/
*{margin:0;padding:0;box-sizing:border-box;}
:root{
  --bg-dark:#080b20;
  --bg-grad1:#0b1030;
  --bg-grad2:#101a45;
  --primary:#3392ff;
  --primary-glow:rgba(51,146,255,0.55);
  --text-active:#ffffff;
  --text-normal:#a0b4e0; /* 普通导航/卡片描述文字色 */
  --card-bg:rgba(20,30,70,0.45);
  --card-border:rgba(70,130,255,0.14);
  --radius:10px;
  --fast:0.22s ease;
  --norm:0.32s ease;
}
html{scroll-behavior:smooth;}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto;}}
body{
  font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  color:var(--text-normal);
  background:linear-gradient(160deg,var(--bg-dark)0%,var(--bg-grad1)50%,var(--bg-grad2)100%);
  min-height:100vh;
  line-height:1.65;
  overflow-x:hidden;
}

.home-bg{
  display:none;
  position:fixed;
  inset:0;
  z-index:-12;
  background-image:url("/assets/img/bg-star.webp");
  background-size:cover;
  background-position:center top;
  background-repeat:no-repeat;
  opacity:0.28;
}
.home-bg::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,
    rgba(8,11,32,0.72) 0%,
    rgba(10,15,40,0.78) 45%,
    rgba(8,11,32,0.88) 100%);
}
body.home-page .home-bg{display:block;}

#star-canvas{
  position:fixed;
  inset:0;
  z-index:-10;
  pointer-events:none;
}

.container{
  width:min(1240px,calc(100% - 32px));
  margin:0 auto;
  padding:0 16px;
}

/* ========= 头部导航 ========= */
header{
  position:sticky;
  top:0;
  z-index:100;
  backdrop-filter:blur(10px);
  background-color:rgba(8,11,32,0.65);
  border-bottom:1px solid rgba(80,130,255,0.12);
}
.header-inner{
  display:flex;
  justify-content:space-between;
  align-items:center;
  height:64px;
}
.logo{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:1.25rem;
  font-weight:600;
  color:#fff;
  text-decoration:none;
}
.logo img{height:36px;width:auto;}

nav.desktop ul{
  display:flex;
  gap:28px;
  list-style:none;
}
nav.desktop a{
  color:var(--text-normal);
  text-decoration:none;
  padding:6px 0;
  position:relative;
  transition:color var(--fast);
}
nav.desktop a:hover{color:#ffffff;}
nav.desktop a.active{color:var(--primary);}
nav.desktop a.active::after{
  content:"";
  position:absolute;
  bottom:0;left:0;
  width:100%;height:2px;
  background:var(--primary);
  box-shadow:0 0 8px var(--primary-glow);
}

.hamburger{
  display:none;
  width:32px;height:32px;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  background:transparent;
  border:none;
  cursor:pointer;
}
.hamburger span{
  width:100%;height:2px;
  background:#fff;
  border-radius:1px;
  transition:transform 0.25s,opacity 0.25s;
}
.mobile-menu{
  display:none;
  position:absolute;
  top:64px;left:0;right:0;
  background:rgba(8,11,32,0.96);
  border-bottom:1px solid rgba(80,130,255,0.15);
}
.mobile-menu ul{
  list-style:none;
  padding:16px;
}
.mobile-menu li a{
  display:block;
  padding:12px 8px;
  color:var(--text-normal);
  text-decoration:none;
}
.mobile-menu li a.active{color:var(--primary);}
.mobile-menu.active{display:block;}

/* Hero */
.hero{
  min-height:calc(100vh - 64px);
  display:flex;
  align-items:center;
  padding:60px 0;
}
.hero-content{max-width:720px;}
.hero h1{
  font-size:clamp(2.2rem,5vw,3.4rem);
  margin-bottom:20px;
  line-height:1.2;
  color:#ffffff;
}
.hero p{
  font-size:1.15rem;
  color:var(--text-normal);
  margin-bottom:32px;
}

.btn{
  display:inline-block;
  padding:12px 28px;
  border-radius:8px;
  text-decoration:none;
  font-weight:500;
  border:none;
  cursor:pointer;
  transition:all var(--norm);
}
.btn-primary{
  background:linear-gradient(90deg,#1970e8,#3392ff);
  color:#ffffff;
}
.btn-primary:hover{
  transform:translateY(-2px) scale(1.03);
  box-shadow:0 0 22px 6px var(--primary-glow);
}
.btn-outline{
  background:transparent;
  color:var(--primary);
  border:1px solid var(--primary);
}
.btn-outline:hover{
  background:rgba(34,136,255,0.12);
  box-shadow:0 0 14px 2px var(--primary-glow);
  transform:translateY(-2px);
}

.scroll-fade{
  opacity:0;
  transform:translateY(28px);
  transition:opacity 0.65s ease, transform 0.65s ease;
}
.scroll-fade.in-view{
  opacity:1;
  transform:translateY(0);
}
@media (prefers-reduced-motion:reduce){
  .scroll-fade{opacity:1;transform:none;transition:none;}
}

section{padding:80px 0;}
.section-title{
  font-size:clamp(1.6rem,3vw,2.2rem);
  margin-bottom:14px;
  color:#ffffff;
}
.section-desc{
  color:var(--text-normal);
  max-width:640px;
  margin-bottom:42px;
}

.card-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
  gap:24px;
}

.card{
  background:var(--card-bg);
  border:1px solid var(--card-border);
  border-radius:var(--radius);
  padding:26px;
  /* 过渡动画【关键】 */
  transition: transform 0.32s ease, box-shadow 0.32s ease !important;
}
/* 卡片标题、描述文字强制颜色 */
.card h3{
  color:#ffffff !important;
  margin-bottom:12px;
  font-size:1.6rem;
}
.card p{
  color:var(--text-normal) !important;
  font-size:1.05rem !important;
}

/* ========= 卡片悬浮效果 上浮+蓝色大光晕【重点】 ========= */
.card:hover{
  transform: translateY(-6px) !important;
  box-shadow: 0 0 45px 12px rgba(51,146,255,0.48),
              0 12px 30px rgba(10,20,60,0.7) !important;
}

/* 兼容其他可能叫card-item的卡片，防止class名字不一样 */
.card-item{
  background:var(--card-bg);
  border:1px solid var(--card-border);
  border-radius:var(--radius);
  padding:26px;
  transition: transform 0.32s ease, box-shadow 0.32s ease !important;
}
.card-item:hover{
  transform: translateY(-6px) !important;
  box-shadow: 0 0 45px 12px rgba(51,146,255,0.48),
              0 12px 30px rgba(10,20,60,0.7) !important;
}

/* 页脚 */
footer{
  border-top:1px solid rgba(80,130,255,0.12);
  padding:40px 0 24px;
  margin-top:40px;
}
.footer-inner{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
  gap:32px;
  margin-bottom:32px;
}
.footer-col h4{margin-bottom:14px;color:#fff;}
.footer-col a{
  display:block;
  color:var(--text-normal);
  text-decoration:none;
  margin-bottom:8px;
  transition:color var(--fast);
}
.footer-col a:hover{color:var(--primary);}
.copyright-block{
  text-align:center;
  color:var(--text-normal);
  font-size:0.9rem;
}
.beian-links{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  align-items:center;
  gap:12px;
  margin-top:10px;
}
.beian-links a{
  color:var(--text-normal);
  text-decoration:none;
  display:flex;
  align-items:center;
  gap:6px;
}
.beian-links a:hover{color:#3392ff;}
.beian-links img{height:18px;width:auto;}

/* 内页 */
.page-content{
  padding:40px 0 80px;
  max-width:860px;
}
.page-content h1{margin-bottom:22px;font-size:2rem;color:#fff;}
.page-content h2{margin:32px 0 14px;font-size:1.4rem;color:#fff;}
.page-content p{margin-bottom:16px;color:var(--text-normal) !important;}

.footer-col a {
    transition: all 0.24s ease;
    position: relative;
}
.footer-col a:hover::after {
    content: "";
    position: absolute;
    top: -4px;
    left: -8px;
    right: -8px;
    bottom: -4px;
    border-radius: 6px;
    box-shadow: 0 0 18px #3392ff, 0 0 32px rgba(34,136,255,0.45);
    pointer-events: none;
}

main.page-content {
    padding-top: 60px;
    padding-bottom: 60px;
}

/* 移动端 */
@media(max-width:768px){
  nav.desktop{display:none;}
  .hamburger{display:flex;}
  .hero{min-height:auto;padding:40px 0;}
  section{padding:50px 0;}
  .home-bg{opacity:0.22;background-position:center center;}
}