/* 南昌工学院信息中心 · 浅色科技清新风 */
:root{
  --bg:#e1f2fe;
  --panel:rgba(255,255,255,.9);
  --panel2:rgba(240,248,255,.95);
  --line:rgba(160,196,255,.6);
  --line-strong:rgba(58,134,255,.5);
  --cyan:#3a86ff;
  --blue:#2566d6;
  --text:#17407e;
  --muted:#5a72a0;
  --soft:#2f4f7f;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}

body{
  font-family:"Microsoft YaHei","PingFang SC","Helvetica Neue",Arial,sans-serif;
  color:var(--text);
  line-height:1.75;
  min-height:100vh;
  background:
    radial-gradient(1100px 620px at 88% -10%, rgba(160,196,255,.5), transparent 62%),
    radial-gradient(900px 560px at -8% 32%, rgba(58,134,255,.14), transparent 55%),
    linear-gradient(180deg, #e1f2fe 0%, #edf7ff 42%, #f8fbff 100%);
  background-attachment:fixed;
}

.container{max-width:1120px;margin:0 auto;padding:0 24px}

/* ===== Hero ===== */
.hero{
  position:relative;
  border-bottom:1px solid rgba(84,170,255,.35);
  background:
    radial-gradient(1100px 620px at 85% -18%, rgba(46,184,255,.40), transparent 58%),
    radial-gradient(760px 480px at -8% 4%, rgba(12,40,96,.55), transparent 62%),
    linear-gradient(148deg, #071a3d 0%, #0b2b62 32%, #164a9c 60%, #2067cf 82%, #2f7fe0 100%);
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;inset:0;
  background:
    repeating-linear-gradient(90deg, rgba(255,255,255,.035) 0 1px, transparent 1px 72px),
    repeating-linear-gradient(0deg, rgba(255,255,255,.035) 0 1px, transparent 1px 72px);
  pointer-events:none;
}
.hero::after{
  content:"";
  position:absolute;
  top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.9),transparent);
}
.brand{display:flex;align-items:center;gap:26px;padding:44px 0 42px;position:relative}
.brand-logo{width:auto;height:88px;display:block;filter:drop-shadow(0 6px 16px rgba(58,134,255,.30))}
.brand-sch{font-size:14px;letter-spacing:7px;color:rgba(255,255,255,.82);margin-bottom:4px}
.brand-txt{display:flex;flex-direction:column;justify-content:center;padding-top:10px}
.brand-name{
  font-size:32px;font-weight:800;letter-spacing:4px;line-height:1.15;
  background:linear-gradient(92deg,#ffffff 5%,#d9ecff 55%,#bcdcff 95%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.brand-en{font-size:11px;letter-spacing:3.5px;color:rgba(255,255,255,.8);margin-top:10px;text-transform:uppercase}

/* ===== 导航 ===== */
.nav{
  position:sticky;top:0;z-index:20;
  background:rgba(9,24,54,.92);
  backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(71,168,255,.4);
}
.nav ul{list-style:none;display:flex;flex-wrap:wrap}
.nav a{
  display:block;color:#d9e8ff;text-decoration:none;
  padding:15px 22px;font-size:16px;letter-spacing:2px;
  position:relative;transition:color .25s;
}
.nav a::after{
  content:"";position:absolute;left:22px;right:22px;bottom:0;height:2px;
  background:linear-gradient(90deg,#8fd0ff,#ffffff);
  transform:scaleX(0);transform-origin:left;transition:transform .25s;
}
.nav a:hover,.nav a.active{color:#fff}
.nav a:hover::after,.nav a.active::after{transform:scaleX(1)}

/* ===== 横幅 Banner ===== */
.banner{
  position:relative;
  min-height:360px;
  margin-bottom:30px;
  display:flex;align-items:center;
  border-bottom:1px solid var(--line);
  background:
    linear-gradient(90deg, rgba(6,14,32,.78) 0%, rgba(9,20,44,.40) 48%, rgba(8,20,44,.34) 100%),
    linear-gradient(180deg, rgba(8,18,40,.06) 0%, rgba(10,22,48,.80) 100%),
    url("images/banner.jpg") center / cover no-repeat;
  overflow:hidden;
}
.banner::after{
  content:"";
  position:absolute;
  top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.9),transparent);
}
.banner-inner{
  width:100%;max-width:1120px;margin:0 auto;padding:0 24px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.banner-tag{
  color:#ffffff;font-size:17px;letter-spacing:5px;
  text-shadow:0 1px 16px rgba(0,120,255,.85);
}
.banner-tag small{
  display:block;color:rgba(214,238,255,.92);letter-spacing:3px;
  font-size:11px;margin-top:8px;text-transform:uppercase;
}
.shield-wrap{
  width:160px;height:160px;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  background:radial-gradient(circle, rgba(0,190,255,.34), transparent 66%);
  border-radius:50%;
}
.shield{
  width:128px;height:128px;
  filter:drop-shadow(0 0 26px rgba(10,132,255,.95)) drop-shadow(0 0 10px rgba(0,220,255,.6));
  animation:shieldPulse 3.2s ease-in-out infinite;
}
@keyframes shieldPulse{
  0%,100%{transform:scale(1);opacity:.92}
  50%{transform:scale(1.06);opacity:1}
}

/* ===== 内容区 ===== */
main{padding:54px 0 66px}

.card{
  position:relative;
  background:linear-gradient(165deg,#eef6ff 0%,#ffffff 78%);
  border:1px solid var(--line);
  border-radius:14px;
  padding:34px 40px;
  margin-bottom:30px;
  overflow:hidden;
  box-shadow:0 10px 30px rgba(58,134,255,.10);
}
.card::before{
  content:"";
  position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(58,134,255,.55),transparent);
}
.card h2{
  display:flex;align-items:center;gap:14px;
  font-size:22px;font-weight:700;letter-spacing:3px;
  margin-bottom:18px;color:var(--text);
}
.card .tag{
  font-family:Georgia,"Times New Roman",serif;
  font-size:12px;letter-spacing:1px;color:var(--blue);
  border:1px solid var(--line-strong);padding:2px 10px;border-radius:3px;
}
.section-desc{color:var(--muted);margin-bottom:18px;font-size:15px}

/* 职责列表 - 编号 */
.duty{list-style:none;margin:0;counter-reset:duty}
.duty li{
  position:relative;padding:12px 0 12px 52px;color:var(--soft);
  border-bottom:1px solid rgba(160,196,255,.35);
}
.duty li:last-child{border-bottom:none}
.duty li::before{
  counter-increment:duty;content:counter(duty,decimal-leading-zero);
  position:absolute;left:2px;top:13px;
  font-family:Georgia,"Times New Roman",serif;font-size:15px;
  color:var(--blue);opacity:.9;
}

/* 部门机构 */
.dept-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.dept{
  border:1px solid var(--line);border-radius:12px;
  background:linear-gradient(180deg,#f2f8ff 0%,#ffffff 100%);
  padding:26px 28px;
  box-shadow:0 6px 20px rgba(58,134,255,.08);
  transition:box-shadow .25s, border-color .25s, transform .25s;
}
.dept:hover{border-color:var(--line-strong);box-shadow:0 12px 28px rgba(58,134,255,.16);transform:translateY(-2px)}
.dept h3{
  font-size:17px;color:var(--text);letter-spacing:2px;margin-bottom:4px;
  display:flex;align-items:center;gap:11px;
}
.dept h3::before{
  content:"";width:8px;height:8px;background:var(--cyan);
  box-shadow:0 0 8px rgba(58,134,255,.65);
}
.dept .en{
  font-size:10px;letter-spacing:2.5px;color:var(--muted);
  margin-bottom:16px;text-transform:uppercase;
}
.dept ul{list-style:none;margin:0}
.dept li{
  position:relative;padding:8px 0 8px 20px;color:var(--soft);
  font-size:14px;border-bottom:1px dashed rgba(160,196,255,.5);
}
.dept li:last-child{border-bottom:none}
.dept li::before{
  content:"·";position:absolute;left:2px;top:6px;color:var(--blue);font-weight:700;
}

/* 信访邮箱入口 */
.petition{
  text-align:center;
  border-style:dashed;
  background:linear-gradient(160deg,#f2f8ff 0%,#ffffff 100%);
  border-color:var(--line-strong);
}
.petition p{color:var(--muted);margin-bottom:24px}
.btn{
  display:inline-block;padding:13px 44px;color:#ffffff;text-decoration:none;
  font-weight:700;font-size:15px;letter-spacing:3px;border-radius:6px;
  background:linear-gradient(90deg,#3a86ff,#2566d6);
  box-shadow:0 8px 20px rgba(58,134,255,.30);
  transition:box-shadow .25s,transform .25s;
}
.btn:hover{box-shadow:0 12px 26px rgba(58,134,255,.42);transform:translateY(-1px)}

/* 信访邮箱展示页 */
.email-card{text-align:center;padding:56px 40px}
.email-intro{color:var(--muted);margin-bottom:30px}
.email-box{
  display:inline-flex;flex-direction:column;align-items:center;gap:16px;
  background:linear-gradient(180deg,#f4f9ff 0%,#ffffff 100%);
  border:1px solid var(--line-strong);border-radius:10px;
  padding:22px 34px;
  box-shadow:0 8px 22px rgba(58,134,255,.08);
}
.email-row{
  display:flex;align-items:center;gap:20px;flex-wrap:wrap;justify-content:center;
}
.phone-row{
  display:flex;align-items:center;gap:20px;flex-wrap:wrap;justify-content:center;
  width:100%;padding-top:16px;border-top:1px dashed var(--line);
}
.phone-label{
  font-size:13px;letter-spacing:3px;color:var(--blue);font-weight:600;
}
.email-label{
  font-size:12px;letter-spacing:3px;color:var(--blue);
  border:1px solid var(--line-strong);padding:4px 12px;border-radius:3px;
}
.email-address{
  font-size:24px;font-weight:700;letter-spacing:1px;color:var(--text);text-decoration:none;
  word-break:break-all;text-shadow:0 0 18px rgba(160,196,255,.7);
}
.email-address:hover{text-decoration:underline}
.btn-copy{
  padding:9px 24px;font-size:13px;
  background:linear-gradient(90deg,#3a86ff,#2566d6);
  color:#ffffff;border:none;border-radius:6px;
  box-shadow:0 4px 12px rgba(58,134,255,.35);
  font-weight:700;letter-spacing:1px;
}
.btn-copy:hover{
  box-shadow:0 6px 16px rgba(58,134,255,.45);transform:translateY(-1px);
}
.phone-number{
  font-size:22px;font-weight:700;letter-spacing:1px;color:var(--text);text-decoration:none;
  text-shadow:0 0 18px rgba(160,196,255,.7);
}
.phone-number:hover{text-decoration:underline}
.tip{margin-top:26px;color:#7c90b8;font-size:13px}

/* ===== 页脚 ===== */
.footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,#f2f8ff 0%,#e3f0fd 100%);
  text-align:center;padding:26px 0;color:var(--muted);font-size:13px;letter-spacing:1px;
}

/* ===== 响应式 ===== */
@media (max-width:800px){
  .dept-grid{grid-template-columns:1fr}
  .brand{padding:40px 0 38px}
  .brand-logo{height:60px}
  .brand-txt{padding-top:34px}
  .brand-name{font-size:24px;letter-spacing:3px}
  .card{padding:24px 20px}
  .nav a{padding:13px 14px;letter-spacing:1.5px;font-size:16px}
  .email-box{padding:18px 18px}
  .phone-row{gap:14px}
  .email-address{font-size:18px}
  .banner{min-height:300px}
  .banner-tag{font-size:14px;letter-spacing:3px}
  .shield-wrap{width:120px;height:120px}
  .shield{width:96px;height:96px}
}