/* ========== CSS Reset & Variables ========== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --primary:#004DA7;--primary-dark:#003B83;--primary-light:#1a6fd4;
  --gold:#F6AC2D;--gold-dark:#D18F2A;--gold-light:#FAC03D;
  --black:#231815;--bg:#F5F7FA;--warning:#ED8936;
  --text:#231815;--text-light:#5a6577;--text-muted:#8a95a5;
  --white:#ffffff;--border:#E4E8EE;
  --radius:16px;--radius-sm:10px;--radius-lg:24px;
  --shadow:0 8px 32px rgba(0,77,167,0.12);
  --shadow-lg:0 16px 48px rgba(0,77,167,0.18);
  --font:'Noto Sans SC',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --transition:all 0.3s cubic-bezier(0.4,0,0.2,1);
}
html{font-size:16px;-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.6;overflow-x:hidden;min-height:100vh;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit}

/* ========== Animations ========== */
@keyframes fadeInUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
@keyframes shimmer{0%{background-position:-200% 0}100%{background-position:200% 0}}
@keyframes pulseGlow{0%,100%{box-shadow:0 0 20px rgba(0,77,167,0.15)}50%{box-shadow:0 0 40px rgba(0,77,167,0.3)}}

/* ========== 区域1：顶部导航栏 ========== */
.top-nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);
  box-shadow:0 2px 16px rgba(0,77,167,0.2);
  height:56px;
}
.nav-inner{
  max-width:1200px;margin:0 auto;height:100%;
  display:flex;align-items:center;gap:12px;
  padding:0 24px;
}
.nav-logo{height:32px;width:auto;filter:brightness(0) invert(1)}
.nav-title{
  font-size:16px;font-weight:700;color:var(--white);
  letter-spacing:0.5px;
}

/* ========== 区域2：Hero主视觉 ========== */
.hero{
  min-height:calc(100vh - 56px);
  background:linear-gradient(135deg,#E8F0FE 0%,#C5D9F7 50%,#a8c4f0 100%);
  display:flex;align-items:center;justify-content:center;
  position:relative;overflow:hidden;
  padding:80px 24px 40px;
}
.hero-decor{
  position:absolute;border-radius:50%;opacity:0.15;pointer-events:none;
}
.hero-decor-1{
  width:400px;height:400px;
  background:radial-gradient(circle,var(--primary) 0%,transparent 70%);
  top:-100px;right:-100px;
}
.hero-decor-2{
  width:300px;height:300px;
  background:radial-gradient(circle,var(--gold) 0%,transparent 70%);
  bottom:-80px;left:-80px;
}
.hero-content{
  text-align:center;position:relative;z-index:1;
  animation:fadeInUp 0.8s ease;
}
.hero-mascot{
  width:200px;height:auto;margin:0 auto 24px;
  animation:float 3s ease-in-out infinite;
  filter:drop-shadow(0 8px 24px rgba(0,77,167,0.15));
}
.hero-title{
  font-size:32px;font-weight:900;color:var(--primary-dark);
  margin-bottom:8px;letter-spacing:2px;
  text-shadow:0 2px 4px rgba(0,77,167,0.08);
}
.hero-subtitle{
  font-size:16px;font-weight:500;color:var(--text-light);
  margin-bottom:6px;
}
.hero-desc{
  font-size:14px;color:var(--text-muted);font-weight:300;
  letter-spacing:1px;
}

/* ========== 区域3：活动入口卡片 ========== */
.cards-section{
  padding:60px 24px 80px;
  max-width:1000px;margin:0 auto;
}
.cards-grid{
  display:grid;grid-template-columns:1fr;gap:24px;
  max-width:420px;margin:0 auto;
}
.card{
  background:var(--white);
  border-radius:var(--radius-lg);
  padding:36px 28px 32px;
  text-align:center;
  box-shadow:var(--shadow);
  transition:var(--transition);
  position:relative;overflow:hidden;
  display:flex;flex-direction:column;align-items:center;
}
.card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:4px;
  border-radius:var(--radius-lg) var(--radius-lg) 0 0;
}
.card:nth-child(1)::before{background:linear-gradient(90deg,var(--primary),var(--primary-light))}
.card:nth-child(2)::before{background:linear-gradient(90deg,var(--gold),var(--gold-light))}
.card:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-lg);
}
.card-badge{
  position:absolute;top:16px;right:16px;
  font-size:11px;font-weight:700;
  padding:4px 12px;border-radius:20px;
  letter-spacing:0.5px;
}
.card-badge-blue{background:#E8F0FE;color:var(--primary)}
.card-badge-gold{background:#FFF8E1;color:var(--gold-dark)}
.card-mascot{
  width:110px;height:auto;margin-bottom:16px;
  filter:drop-shadow(0 4px 12px rgba(0,0,0,0.08));
}
.card-title{
  font-size:22px;font-weight:900;color:var(--primary-dark);
  margin-bottom:10px;
}
.card-desc{
  font-size:14px;color:var(--text-light);line-height:1.7;
  margin-bottom:24px;
}
.card-btn{
  display:inline-block;
  padding:14px 40px;border-radius:60px;
  font-size:16px;font-weight:700;
  transition:var(--transition);
  letter-spacing:0.5px;
}
.card-btn-blue{
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:var(--white);
  box-shadow:0 4px 16px rgba(0,77,167,0.3);
}
.card-btn-blue:hover{
  box-shadow:0 6px 24px rgba(0,77,167,0.45);
  transform:translateY(-2px);
}
.card-btn-gold{
  background:linear-gradient(135deg,var(--gold),var(--gold-dark));
  color:var(--white);
  box-shadow:0 4px 16px rgba(246,172,45,0.35);
}
.card-btn-gold:hover{
  box-shadow:0 6px 24px rgba(246,172,45,0.5);
  transform:translateY(-2px);
}

/* ========== 区域4：廉洁举报信息 ========== */
.report-section{
  padding:0 24px 80px;
  max-width:900px;margin:0 auto;
}
.report-inner{
  background:var(--white);
  border-radius:var(--radius-lg);
  padding:40px 32px 32px;
  box-shadow:var(--shadow);
  border-top:4px solid var(--primary);
}
.report-header{
  display:flex;align-items:center;justify-content:center;gap:10px;
  margin-bottom:32px;
}
.report-icon-wrap{
  width:44px;height:44px;border-radius:12px;
  background:#E8F0FE;
  display:flex;align-items:center;justify-content:center;
}
.report-title{
  font-size:20px;font-weight:700;color:var(--primary-dark);
}
.report-grid{
  display:grid;grid-template-columns:repeat(2,1fr);gap:16px;
  margin-bottom:24px;
}
.report-item{
  background:#F8FAFC;
  border-radius:var(--radius);
  padding:20px 16px;
  text-align:center;
  transition:var(--transition);
  border:1px solid transparent;
}
.report-item:hover{
  border-color:#E8F0FE;
  background:#F0F5FF;
  transform:translateY(-2px);
}
.report-item-icon{
  width:40px;height:40px;border-radius:10px;
  background:var(--white);
  display:flex;align-items:center;justify-content:center;
  margin:0 auto 10px;
  color:var(--primary);
  box-shadow:0 2px 8px rgba(0,77,167,0.08);
}
.report-label{
  display:block;font-size:12px;color:var(--text-muted);
  margin-bottom:4px;font-weight:500;
}
.report-value{
  font-size:15px;font-weight:700;color:var(--black);
  word-break:break-all;
}
a.report-value:hover{color:var(--primary)}
.report-note{
  text-align:center;font-size:12px;color:var(--text-muted);
  padding-top:16px;border-top:1px solid var(--border);
}

/* ========== 区域5：页脚 ========== */
.footer{
  background:linear-gradient(135deg,var(--primary-dark) 0%,#002a5c 100%);
  padding:28px 24px;text-align:center;
}
.footer p{
  font-size:12px;color:var(--white);opacity:0.7;
  line-height:1.8;
}
.footer-sub{margin-top:2px;font-size:11px;opacity:0.5}

/* ========== 响应式：平板 ========== */
@media(min-width:768px){
  .nav-title{font-size:17px}
  .hero-mascot{width:240px}
  .hero-title{font-size:38px}
  .hero-subtitle{font-size:18px}
  .cards-grid{
    grid-template-columns:repeat(2,1fr);
    max-width:820px;gap:28px;
  }
  .card{padding:44px 32px 36px}
  .card-mascot{width:120px}
  .card-title{font-size:24px}
  .report-grid{grid-template-columns:repeat(4,1fr);gap:20px}
  .report-inner{padding:48px 40px 36px}
}

/* ========== 响应式：大屏桌面 ========== */
@media(min-width:1024px){
  .nav-inner{padding:0 40px}
  .nav-title{font-size:18px}
  .hero{padding:80px 40px 40px}
  .hero-mascot{width:260px}
  .hero-title{font-size:42px}
  .cards-section{padding:80px 40px 100px}
  .cards-grid{max-width:880px;gap:32px}
  .card{padding:48px 36px 40px}
  .card-mascot{width:130px}
  .card-btn{padding:16px 48px;font-size:17px}
  .report-section{padding:0 40px 100px}
}

/* ========== 响应式：小屏手机 ========== */
@media(max-width:480px){
  .nav-logo{height:26px}
  .nav-title{font-size:13px;letter-spacing:0}
  .hero{padding:70px 16px 30px;min-height:calc(100vh - 48px)}
  .hero-mascot{width:150px}
  .hero-title{font-size:26px;letter-spacing:1px}
  .hero-subtitle{font-size:14px}
  .hero-desc{font-size:12px}
  .cards-section{padding:40px 16px 60px}
  .cards-grid{max-width:100%;gap:16px}
  .card{padding:28px 20px 24px;border-radius:20px}
  .card-mascot{width:90px}
  .card-title{font-size:19px}
  .card-desc{font-size:13px;margin-bottom:20px}
  .card-btn{padding:12px 32px;font-size:15px}
  .report-section{padding:0 16px 60px}
  .report-inner{padding:28px 20px 24px;border-radius:20px}
  .report-grid{gap:12px}
  .report-item{padding:16px 12px}
  .report-value{font-size:13px}
}