/* ========== 基础重置 ========== */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'Segoe UI','PingFang SC','Microsoft YaHei',Arial,sans-serif;
  color:#1a1a2e;
  background:#fff;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
a{text-decoration:none;color:inherit;transition:.3s}
img{max-width:100%;display:block}
.container{max-width:1240px;margin:0 auto;padding:0 24px}
.text-center{text-align:center}

/* 颜色变量 */
:root{
  --navy:#0a1428;
  --navy-2:#0f1d38;
  --gold:#c9a84c;
  --gold-light:#e0c169;
  --gray:#6b7280;
  --gray-light:#f7f8fb;
}

/* ========== 顶部导航 ========== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(10,20,40,.92);
  backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(201,168,76,.15);
}
.header-inner{
  max-width:1400px;margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 32px;
}
.logo-text{color:#fff;font-size:22px;font-weight:700;letter-spacing:2px}
.main-nav{display:flex;gap:38px}
.main-nav a{
  color:rgba(255,255,255,.82);font-size:15px;font-weight:500;
  position:relative;padding:4px 0;
}
.main-nav a::after{
  content:'';position:absolute;left:0;bottom:-4px;
  width:0;height:2px;background:var(--gold);transition:.3s;
}
.main-nav a:hover::after,.main-nav a.active::after{width:100%}
.main-nav a:hover,.main-nav a.active{color:var(--gold)}
.header-actions{display:flex;align-items:center;gap:14px;position:relative}
.qq-contact{
  position:absolute;top:100%;right:0;
  color:var(--gold);font-size:12px;white-space:nowrap;
  margin-top:8px;opacity:.85;
}

/* ========== 按钮 ========== */
.btn{
  display:inline-block;padding:11px 26px;border-radius:4px;
  font-size:14px;font-weight:600;transition:.3s;cursor:pointer;border:none;
  letter-spacing:.5px;
}
.btn-primary{background:var(--gold);color:var(--navy)}
.btn-primary:hover{background:var(--gold-light);transform:translateY(-2px);box-shadow:0 8px 20px rgba(201,168,76,.35)}
.btn-outline{background:transparent;border:1px solid var(--gold);color:var(--gold)}
.btn-outline:hover{background:var(--gold);color:var(--navy)}
.btn-lg{padding:16px 44px;font-size:16px}
.btn-sm{padding:6px 16px;font-size:12px}
.btn-small{padding:8px 22px;font-size:13px}

/* ========== 首页全屏幻灯片 ========== */
.hero-slider{position:relative;height:100vh;min-height:620px;overflow:hidden}
.slide{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  display:flex;align-items:center;justify-content:center;
  opacity:0;transition:opacity 1.2s ease;text-align:center;
}
.slide.active{opacity:1}
.slide::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(5,15,35,.82),rgba(10,25,55,.68));
}
.slide-content{position:relative;z-index:2;color:#fff;max-width:820px;padding:0 24px;animation:fadeUp 1s ease}
@keyframes fadeUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}
.slide-content h1{
  font-size:56px;margin-bottom:20px;letter-spacing:3px;font-weight:700;
}
.slide-content p{font-size:22px;margin-bottom:10px;color:var(--gold);letter-spacing:1px}
.slide-content .sub{
  font-size:16px;color:rgba(255,255,255,.78);
  margin-bottom:36px;line-height:1.9;letter-spacing:.5px;
}
.slider-dots{
  position:absolute;bottom:40px;left:50%;transform:translateX(-50%);
  display:flex;gap:14px;z-index:3;
}
.dot{
  width:44px;height:3px;background:rgba(255,255,255,.35);
  cursor:pointer;transition:.3s;border-radius:2px;
}
.dot.active{background:var(--gold);width:60px}

/* ========== 通用区块 ========== */
.section{padding:120px 0}          /* 关键：加大上下间距 */
.section-dark{background:var(--navy);color:#fff}
.section-light{background:var(--gray-light)}
.section-title{
  text-align:center;font-size:36px;margin-bottom:18px;
  font-weight:700;letter-spacing:1px;position:relative;
}
.section-title::after{
  content:'';display:block;width:60px;height:3px;
  background:var(--gold);margin:18px auto 0;border-radius:2px;
}
.section-desc{
  text-align:center;color:var(--gray);margin-bottom:70px;
  font-size:16px;letter-spacing:.5px;
}
.section-dark .section-title{color:#fff}
.section-dark .section-desc{color:rgba(255,255,255,.6)}

/* 网格 */
.grid-2,.grid-3,.grid-4{display:grid;gap:36px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}

/* ========== 交易产品卡片 ========== */
.card{
  background:#fff;padding:48px 32px;border-radius:10px;
  text-align:center;transition:.4s;border:1px solid #eef0f4;
  position:relative;overflow:hidden;
}
.card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:3px;
  background:var(--gold);transform:scaleX(0);transition:.4s;
}
.card:hover::before{transform:scaleX(1)}
.card:hover{transform:translateY(-8px);box-shadow:0 20px 40px rgba(10,20,40,.1)}
.card i{font-size:38px;color:var(--gold);margin-bottom:20px;display:block}
.card h3{margin-bottom:12px;font-size:19px;letter-spacing:.5px}
.card p{font-size:14px;color:var(--gray);line-height:1.8}

/* ========== 账户卡片 ========== */
.account-card{
  background:#fff;color:#1a1a2e;padding:48px 32px;border-radius:10px;
  text-align:center;transition:.4s;position:relative;
  border:1px solid rgba(255,255,255,.06);
}
.account-card h3{font-size:22px;margin-bottom:16px;letter-spacing:.5px}
.account-card .price{
  font-size:34px;font-weight:700;color:var(--gold);
  margin-bottom:18px;display:block;
}
.account-card p{font-size:14px;color:var(--gray);line-height:1.9}
.account-card.featured{
  background:linear-gradient(135deg,var(--gold),var(--gold-light));
  color:var(--navy);transform:scale(1.06);
  box-shadow:0 24px 50px rgba(201,168,76,.35);
}
.account-card.featured .price{color:var(--navy)}
.account-card.featured p{color:rgba(10,20,40,.8)}
.account-card:hover{transform:translateY(-6px)}
.account-card.featured:hover{transform:scale(1.06) translateY(-6px)}

/* ========== 数据统计 ========== */
.stats .stat{text-align:center;padding:36px 20px;position:relative}
.stats .stat:not(:last-child)::after{
  content:'';position:absolute;right:0;top:30%;height:40%;width:1px;
  background:rgba(201,168,76,.25);
}
.stats .num{
  display:block;font-size:46px;font-weight:700;
  color:var(--gold);margin-bottom:12px;letter-spacing:1px;
}
.stats .label{font-size:15px;color:var(--gray);letter-spacing:.5px}

/* ========== 新闻卡片 ========== */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:36px;margin-bottom:60px}
.news-card,.news-item{
  background:#fff;padding:36px 32px;border-radius:10px;
  transition:.4s;border:1px solid #eef0f4;
}
.news-card:hover,.news-item:hover{
  box-shadow:0 20px 40px rgba(10,20,40,.08);
  transform:translateY(-6px);border-color:rgba(201,168,76,.3);
}
.news-card h3,.news-item h3{
  font-size:18px;margin-bottom:14px;line-height:1.6;letter-spacing:.3px;
}
.news-card .date,.news-item .date{
  font-size:12px;color:var(--gold);margin-bottom:16px;
  letter-spacing:1px;text-transform:uppercase;
}
.news-card p,.news-item p{font-size:14px;color:var(--gray);line-height:1.9;margin-bottom:18px}
.read-more{color:var(--gold);font-size:13px;font-weight:600;letter-spacing:.5px}
.read-more:hover{letter-spacing:1.5px}
.news-list{display:flex;flex-direction:column;gap:32px}

/* ========== 内页 hero ========== */
.page-hero{
  background:linear-gradient(135deg,var(--navy),var(--navy-2));
  color:#fff;padding:180px 24px 100px;text-align:center;
  position:relative;overflow:hidden;
}
.page-hero::after{
  content:'';position:absolute;bottom:0;left:50%;transform:translateX(-50%);
  width:80px;height:3px;background:var(--gold);border-radius:2px;
}
.page-hero h1{font-size:44px;margin-bottom:16px;letter-spacing:2px}
.page-hero p{color:rgba(255,255,255,.7);font-size:16px;letter-spacing:1px}

/* ========== 文章内容 ========== */
.article-content{
  max-width:820px;margin:0 auto;font-size:16px;line-height:2;
  color:#2a2f3d;
}
.article-content p{margin-bottom:24px}

/* ========== 联系我们 ========== */
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:36px}
.contact-item{
  text-align:center;padding:56px 32px;background:#fff;
  border-radius:10px;border:1px solid #eef0f4;transition:.4s;
}
.contact-item:hover{transform:translateY(-6px);box-shadow:0 20px 40px rgba(10,20,40,.08)}
.contact-item i{font-size:42px;color:var(--gold);margin-bottom:20px;display:block}
.contact-item h3{margin-bottom:12px;font-size:18px}
.contact-item p{color:var(--gray);font-size:15px}

/* ========== 关于页 ========== */
.about-intro,.partners,.regulation,.awards{margin-bottom:80px}
.about-intro h2,.partners h2,.regulation h2,.awards h2{
  font-size:26px;margin-bottom:24px;color:var(--navy);
  border-left:4px solid var(--gold);padding-left:16px;letter-spacing:.5px;
}
.about-intro p,.partners p{font-size:15px;line-height:2;color:#3a4050;margin-bottom:16px}
.reg-card{
  background:var(--gray-light);padding:36px;border-radius:10px;
  margin-bottom:20px;border-left:4px solid var(--gold);
}
.reg-card h3{font-size:18px;margin-bottom:12px;color:var(--navy)}
.reg-card p{color:var(--gray);font-size:14px;margin-bottom:6px}

/* ========== 交易工具 ========== */
.tool-card{
  background:#fff;padding:48px 36px;border-radius:10px;
  border:1px solid #eef0f4;transition:.4s;
}
.tool-card:hover{transform:translateY(-6px);box-shadow:0 20px 40px rgba(10,20,40,.08)}
.tool-card h3{font-size:19px;margin-bottom:20px;color:var(--navy)}
.tool-card i{color:var(--gold);margin-right:10px}
.tool-card p{font-size:14px;color:var(--gray);line-height:2}

/* ========== 底部 ========== */
.site-footer{
  background:linear-gradient(180deg,#060e1a,#0a1428);
  color:rgba(255,255,255,.7);padding:90px 24px 30px;
  border-top:1px solid rgba(201,168,76,.15);
}
.footer-inner{
  max-width:1240px;margin:0 auto;
  display:grid;grid-template-columns:2fr 1fr 1fr;gap:60px;
}
.footer-col h4{color:var(--gold);margin-bottom:24px;font-size:17px;letter-spacing:1px}
.footer-col a{display:block;margin-bottom:14px;font-size:14px;color:rgba(255,255,255,.6)}
.footer-col a:hover{color:var(--gold);padding-left:6px}
.footer-col p{font-size:14px;line-height:2;color:rgba(255,255,255,.6)}
.footer-bottom{
  max-width:1240px;margin:60px auto 0;padding-top:30px;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;justify-content:space-between;font-size:13px;
  color:rgba(255,255,255,.45);
}
.admin-link{color:rgba(255,255,255,.35)}
.admin-link:hover{color:var(--gold)}

/* ========== 底部小后台按钮 ========== */
.bottom-admin{text-align:center;padding:40px 20px;background:var(--gray-light)}

/* ========== 分页 ========== */
.pagination{text-align:center;margin-top:60px}
.pagination a{
  display:inline-block;padding:10px 16px;margin:0 6px;
  border:1px solid #e0e3ea;border-radius:6px;font-size:14px;transition:.3s;
}
.pagination a:hover{border-color:var(--gold);color:var(--gold)}
.pagination a.active{background:var(--gold);color:#fff;border-color:var(--gold)}

/* ========== 后台（保持原样） ========== */
.admin-body{background:#f0f2f6}
.admin-layout{display:flex;min-height:100vh}
.admin-sidebar{
  width:230px;background:var(--navy);padding:28px 18px;
  display:flex;flex-direction:column;gap:6px;
}
.admin-sidebar h3{
  color:var(--gold);font-size:16px;margin-bottom:20px;
  padding-bottom:16px;border-bottom:1px solid rgba(255,255,255,.1);
}
.admin-sidebar a{
  color:rgba(255,255,255,.7);padding:10px 14px;border-radius:6px;
  font-size:14px;transition:.3s;
}
.admin-sidebar a:hover,.admin-sidebar a.active{
  background:rgba(201,168,76,.15);color:var(--gold);
}
.admin-main{flex:1;padding:40px}
.admin-main h1{
  font-size:26px;margin-bottom:28px;
  display:flex;justify-content:space-between;align-items:center;
}
.admin-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-bottom:40px}
.admin-card{background:#fff;padding:32px;border-radius:10px;text-align:center;box-shadow:0 4px 16px rgba(0,0,0,.04)}
.admin-card span{display:block;font-size:30px;font-weight:700;color:var(--gold);margin-bottom:6px}
.admin-table{width:100%;background:#fff;border-radius:10px;overflow:hidden;border-collapse:collapse;box-shadow:0 4px 16px rgba(0,0,0,.04)}
.admin-table th,.admin-table td{padding:14px 18px;text-align:left;border-bottom:1px solid #eef0f4;font-size:14px}
.admin-table th{background:#f8f9fc;font-weight:600}
.admin-form{background:#fff;padding:40px;border-radius:10px;max-width:720px;box-shadow:0 4px 16px rgba(0,0,0,.04)}
.admin-form label{display:block;margin-bottom:8px;font-weight:600;font-size:14px}
.admin-form input,.admin-form textarea{
  width:100%;padding:12px 14px;border:1px solid #e0e3ea;border-radius:6px;
  margin-bottom:20px;font-size:14px;font-family:inherit;transition:.3s;
}
.admin-form input:focus,.admin-form textarea:focus{
  outline:none;border-color:var(--gold);box-shadow:0 0 0 3px rgba(201,168,76,.12);
}
.admin-form textarea{resize:vertical}
.login-box{
  max-width:400px;margin:120px auto;background:#fff;padding:48px;
  border-radius:12px;box-shadow:0 10px 40px rgba(10,20,40,.12);
}
.login-box h2{text-align:center;margin-bottom:28px;font-size:22px;letter-spacing:1px}
.login-box input{width:100%;padding:13px;border:1px solid #e0e3ea;border-radius:6px;margin-bottom:16px;font-size:14px}
.login-box input:focus{outline:none;border-color:var(--gold)}
.login-box .btn{width:100%}
.error{color:#e74c3c;text-align:center;margin-bottom:16px;font-size:14px}

/* ========== 滚动动画 ========== */
.reveal{opacity:0;transform:translateY(30px);transition:all .8s cubic-bezier(.22,1,.36,1)}
.reveal.visible{opacity:1;transform:translateY(0)}

/* ========== 移动端 ========== */
.mobile-toggle{display:none;background:none;border:none;color:#fff;font-size:22px;cursor:pointer}
@media(max-width:992px){
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}
  .news-grid,.contact-grid{grid-template-columns:1fr}
}
@media(max-width:768px){
  .header-inner{padding:12px 18px}
  .main-nav{
    position:fixed;top:64px;left:0;right:0;background:var(--navy);
    flex-direction:column;padding:28px;gap:20px;display:none;
    border-bottom:1px solid rgba(201,168,76,.2);
  }
  .main-nav.open{display:flex}
  .mobile-toggle{display:block}
  .header-actions .btn{font-size:12px;padding:7px 14px}
  .qq-contact{display:none}
  .grid-2,.grid-3,.grid-4,.news-grid,.contact-grid,.footer-inner,.admin-cards,
  .stats .grid-4{grid-template-columns:1fr}
  .stats .stat::after{display:none}
  .slide-content h1{font-size:32px;letter-spacing:1px}
  .slide-content p{font-size:17px}
  .slide-content .sub{font-size:14px}
  .hero-slider{height:88vh;min-height:540px}
  .section{padding:70px 0}
  .section-title{font-size:26px}
  .section-desc{margin-bottom:44px}
  .page-hero{padding:140px 20px 70px}
  .page-hero h1{font-size:30px}
  .account-card.featured{transform:scale(1)}
  .account-card.featured:hover{transform:translateY(-6px)}
  .admin-layout{flex-direction:column}
  .admin-sidebar{width:100%;flex-direction:row;flex-wrap:wrap}
  .admin-main{padding:24px}
  .footer-bottom{flex-direction:column;gap:10px;text-align:center}
}

/* ===== 关于页 - 合作伙伴卡片 ===== */
.partner-card{
  background:#fff;padding:44px 36px;border-radius:10px;
  border:1px solid #eef0f4;transition:.4s;
}
.partner-card:hover{transform:translateY(-6px);box-shadow:0 20px 40px rgba(10,20,40,.08)}
.partner-card h3{font-size:20px;margin-bottom:20px;color:var(--navy);border-left:4px solid var(--gold);padding-left:14px}
.partner-card p{font-size:14px;color:var(--gray);line-height:2}

/* ===== 关于页 - 奖项卡片 ===== */
.award-card{
  text-align:center;padding:48px 32px;background:rgba(255,255,255,.04);
  border-radius:10px;border:1px solid rgba(201,168,76,.15);transition:.4s;
}
.award-card:hover{background:rgba(201,168,76,.08);transform:translateY(-6px)}
.award-card i{font-size:42px;color:var(--gold);margin-bottom:20px;display:block}
.award-card h3{font-size:18px;margin-bottom:12px;color:#fff}
.award-card p{font-size:14px;color:rgba(255,255,255,.6)}

/* ===== 交易页 - APP 功能网格 ===== */
.app-features{
  display:grid;grid-template-columns:repeat(4,1fr);gap:36px;
  margin-bottom:50px;
}
.feature-item{
  text-align:center;padding:44px 28px;background:#fff;
  border-radius:10px;border:1px solid #eef0f4;transition:.4s;
}
.feature-item:hover{transform:translateY(-6px);box-shadow:0 20px 40px rgba(10,20,40,.08)}
.feature-item i{font-size:36px;color:var(--gold);margin-bottom:18px;display:block}
.feature-item h3{font-size:17px;margin-bottom:12px}
.feature-item p{font-size:13px;color:var(--gray);line-height:1.9}
.app-note{
  text-align:center;max-width:780px;margin:0 auto;
  font-size:15px;color:var(--gray);line-height:2;
}

/* ===== 关于页 - 监管卡片优化 ===== */
.reg-card{
  background:#fff;padding:44px 36px;border-radius:10px;
  border:1px solid #eef0f4;border-top:3px solid var(--gold);
  transition:.4s;
}
.reg-card:hover{transform:translateY(-4px);box-shadow:0 16px 32px rgba(10,20,40,.06)}
.reg-card h3{font-size:17px;margin-bottom:16px;color:var(--navy);line-height:1.5}
.reg-card p{font-size:14px;color:var(--gray);line-height:1.9;margin-bottom:8px}

/* ===== 响应式补充 ===== */
@media(max-width:992px){
  .app-features{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .app-features{grid-template-columns:1fr}
}