/* ============================================================
   MetaTrader 4 — 清新金融风 (Emerald / 翠绿渐变 + 白底)
   ============================================================ */
:root{
  --brand:#10b981; --brand2:#059669; --brand-dark:#047857;
  --ink:#0f172a; --sub:#64748b; --line:#e5e7eb; --soft:#f0fdf4;
  --bg:#ffffff; --muted:#f8fafc; --danger:#ef4444; --warn:#f59e0b;
  --shadow:0 6px 24px rgba(16,185,129,.10);
  --grad:linear-gradient(135deg,#10b981 0%,#059669 100%);
  --grad-soft:linear-gradient(135deg,#ecfdf5 0%,#f0fdf4 100%);
  --radius:16px; --max:1200px;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.65;font-size:15px;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;}
ul{list-style:none;}
img{max-width:100%;display:block;}
.container{max-width:var(--max);margin:0 auto;padding:0 24px;}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 24px;
  border-radius:10px;font-weight:600;font-size:14px;cursor:pointer;border:none;
  transition:.25s;white-space:nowrap;}
.btn-primary{background:var(--grad);color:#fff;box-shadow:var(--shadow);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(16,185,129,.28);}
.btn-ghost{background:transparent;color:var(--brand-dark);border:1.5px solid var(--brand);}
.btn-ghost:hover{background:var(--soft);}
.btn-light{background:#fff;color:var(--brand-dark);}
.btn-light:hover{background:#f0fdf4;}

/* ---------- 顶部公告 ---------- */
.topbar{background:var(--ink);color:#cbd5e1;font-size:12px;padding:8px 0;}
.topbar .container{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;}
.topbar a{color:#94a3b8;transition:.2s;}
.topbar a:hover{color:#fff;}
.topbar .risk{color:#fbbf24;}

/* ---------- 导航 ---------- */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line);}
.nav .container{display:flex;align-items:center;justify-content:space-between;height:68px;gap:18px;}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;color:var(--ink);}
.logo .dot{width:30px;height:30px;border-radius:8px;background:var(--grad);
  display:flex;align-items:center;justify-content:center;color:#fff;font-weight:900;font-size:15px;}
.nav-links{display:flex;gap:6px;align-items:center;}
.nav-links a{padding:8px 12px;border-radius:8px;font-size:14px;color:var(--sub);font-weight:500;transition:.2s;}
.nav-links a:hover,.nav-links a.active{color:var(--brand-dark);background:var(--soft);}
.nav-cta{display:flex;gap:8px;align-items:center;}
.hamburger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:6px;}
.hamburger span{width:24px;height:2px;background:var(--ink);border-radius:2px;}

/* ---------- Hero ---------- */
.hero{padding:64px 0 56px;background:var(--grad-soft);overflow:hidden;position:relative;}
.hero::after{content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 85% 20%,rgba(16,185,129,.14),transparent 45%);
  pointer-events:none;}
.hero .container{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;position:relative;z-index:1;}
.hero h1{font-size:46px;line-height:1.15;font-weight:800;letter-spacing:-.02em;margin-bottom:18px;}
.hero h1 span{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero p.lead{color:var(--sub);font-size:16px;margin-bottom:26px;max-width:480px;}
.hero-stats{display:flex;gap:26px;flex-wrap:wrap;margin-bottom:28px;}
.hstat{font-size:24px;font-weight:800;color:var(--brand-dark);}
.hstat small{display:block;font-size:12px;font-weight:500;color:var(--sub);}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;}

/* 终端 */
.terminal{background:#0f172a;border-radius:18px;overflow:hidden;box-shadow:0 20px 50px rgba(15,23,42,.25);
  border:1px solid #1e293b;}
.term-head{display:flex;align-items:center;gap:8px;padding:12px 16px;background:#1e293b;}
.term-head i{width:11px;height:11px;border-radius:50%;display:inline-block;}
.term-head i:nth-child(1){background:#ef4444;} .term-head i:nth-child(2){background:#f59e0b;} .term-head i:nth-child(3){background:#10b981;}
.term-head span{margin-left:10px;color:#94a3b8;font-size:12px;}
.term-body{padding:16px;}
.term-row{display:flex;justify-content:space-between;align-items:center;padding:9px 4px;
  border-bottom:1px solid #1e293b;font-size:13px;}
.term-row:last-child{border-bottom:none;}
.term-row .sym{color:#e2e8f0;font-weight:600;}
.term-row .price{color:#10b981;font-weight:700;font-family:"SF Mono",monospace;}
.term-row .chg{font-size:11px;padding:2px 7px;border-radius:6px;font-weight:600;}
.term-row .chg.up{background:rgba(16,185,129,.15);color:#34d399;}
.term-row .chg.down{background:rgba(239,68,68,.15);color:#f87171;}
.term-chart{margin-top:12px;height:90px;width:100%;}

/* ---------- 通用区块 ---------- */
.section{padding:72px 0;}
.section-head{text-align:center;margin-bottom:44px;}
.section-head .tag{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.08em;
  color:var(--brand-dark);background:var(--soft);padding:6px 14px;border-radius:20px;margin-bottom:12px;text-transform:uppercase;}
.section-head h2{font-size:32px;font-weight:800;letter-spacing:-.02em;margin-bottom:10px;}
.section-head p{color:var(--sub);max-width:620px;margin:0 auto;}

/* ---------- 下载卡片 ---------- */
.grid{display:grid;gap:22px;}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-2{grid-template-columns:repeat(2,1fr);}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;
  transition:.3s;position:relative;overflow:hidden;}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:rgba(16,185,129,.35);}
.card .ic{width:48px;height:48px;border-radius:12px;background:var(--soft);display:flex;
  align-items:center;justify-content:center;font-size:22px;margin-bottom:16px;}
.card h3{font-size:18px;font-weight:700;margin-bottom:6px;}
.card .ver{font-size:12px;color:var(--sub);margin-bottom:14px;}
.card ul{margin:14px 0 18px;padding:0;}
.card ul li{padding:5px 0;font-size:13px;color:#475569;display:flex;align-items:center;gap:8px;}
.card ul li::before{content:"✓";color:var(--brand);font-weight:800;}
.dl-btn{width:100%;justify-content:center;}

/* ---------- 中文专区 Tabs ---------- */
.tabs{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-bottom:32px;
  background:#fff;border:1px solid var(--line);border-radius:12px;padding:6px;max-width:720px;margin-left:auto;margin-right:auto;}
.tabs button{background:none;border:none;padding:9px 18px;border-radius:8px;cursor:pointer;
  font-size:14px;font-weight:600;color:var(--sub);transition:.2s;}
.tabs button.active{background:var(--grad);color:#fff;}
.tab-panel{display:none;}
.tab-panel.active{display:block;animation:fade .4s ease;}
@keyframes fade{from{opacity:0;transform:translateY(8px);}to{opacity:1;transform:none;}}
.res-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px;transition:.25s;}
.res-card:hover{box-shadow:var(--shadow);border-color:rgba(16,185,129,.3);}
.res-card .lab{font-size:11px;font-weight:700;color:var(--brand-dark);background:var(--soft);
  padding:3px 9px;border-radius:6px;}
.res-card h4{font-size:15px;font-weight:700;margin:12px 0 6px;}
.res-card p{font-size:13px;color:var(--sub);}

/* ---------- 统计条 ---------- */
.stats{background:var(--grad);color:#fff;}
.stats .grid-4{grid-template-columns:repeat(4,1fr);}
.stat-item{text-align:center;padding:10px;}
.stat-item .num{font-size:34px;font-weight:800;}
.stat-item .lbl{font-size:13px;opacity:.9;}

/* ---------- 优势 ---------- */
.feat .ic{background:var(--grad);color:#fff;font-size:20px;}
.feat h3{font-size:17px;}
.feat p{font-size:13px;color:var(--sub);margin-top:6px;}

/* ---------- CTA ---------- */
.cta{background:var(--ink);color:#fff;border-radius:24px;padding:48px;margin:0 24px;
  position:relative;overflow:hidden;}
.cta::after{content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;
  background:radial-gradient(circle,rgba(16,185,129,.4),transparent 70%);}
.cta .container{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center;}
.cta h2{font-size:28px;font-weight:800;}
.cta p{color:#94a3b8;margin:10px 0 0;}
.cta form{display:grid;gap:12px;}
.cta input,.cta select{padding:13px 16px;border-radius:10px;border:none;font-size:14px;background:#1e293b;color:#e2e8f0;}
.cta input::placeholder{color:#64748b;}
.cta .btn{justify-content:center;}

/* ---------- FAQ ---------- */
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:12px;overflow:hidden;}
.faq-q{width:100%;text-align:left;padding:18px 22px;background:none;border:none;cursor:pointer;
  font-size:15px;font-weight:600;color:var(--ink);display:flex;justify-content:space-between;align-items:center;}
.faq-q .plus{font-size:20px;color:var(--brand);transition:.3s;}
.faq-item.open .plus{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:.35s;padding:0 22px;color:var(--sub);font-size:14px;}
.faq-item.open .faq-a{max-height:300px;padding:0 22px 18px;}

/* ---------- 页脚 ---------- */
footer{background:var(--ink);color:#94a3b8;padding:56px 0 24px;margin-top:40px;}
.foot-grid{display:grid;grid-template-columns:1.4fr repeat(4,1fr);gap:32px;margin-bottom:36px;}
.foot-brand .logo{color:#fff;margin-bottom:12px;}
.foot-brand p{font-size:13px;}
.foot-col h5{color:#fff;font-size:14px;font-weight:700;margin-bottom:14px;}
.foot-col a{display:block;padding:5px 0;font-size:13px;color:#94a3b8;transition:.2s;}
.foot-col a:hover{color:#34d399;}
.foot-bottom{border-top:1px solid #1e293b;padding-top:20px;display:flex;justify-content:space-between;
  align-items:center;font-size:12px;flex-wrap:wrap;gap:10px;}
.foot-social{display:flex;gap:10px;}
.foot-social a{width:34px;height:34px;border-radius:8px;background:#1e293b;display:flex;align-items:center;justify-content:center;font-size:14px;}

/* ---------- 内页 Hero ---------- */
.page-hero{padding:52px 0 40px;background:var(--grad-soft);}
.page-hero h1{font-size:38px;font-weight:800;margin:8px 0 10px;}
.page-hero h1 span{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.crumb{font-size:13px;color:var(--sub);}
.crumb a:hover{color:var(--brand-dark);}

/* 详情卡片 */
.detail .grid-3{grid-template-columns:repeat(3,1fr);}
.detail-card{border:1px solid var(--line);border-radius:var(--radius);padding:24px;background:#fff;transition:.3s;}
.detail-card:hover{box-shadow:var(--shadow);transform:translateY(-4px);border-color:rgba(16,185,129,.3);}
.detail-card .head{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.detail-card .head .ic{width:44px;height:44px;border-radius:11px;background:var(--soft);display:flex;align-items:center;justify-content:center;font-size:20px;margin-bottom:0;}
.detail-card h3{font-size:16px;font-weight:700;}
.detail-card .meta{font-size:11px;color:var(--sub);}
.detail-card ul{margin:12px 0 16px;}
.detail-card ul li{font-size:12.5px;color:#475569;padding:4px 0;display:flex;align-items:center;gap:7px;}
.detail-card ul li::before{content:"•";color:var(--brand);font-weight:900;}
.sys{font-size:11px;color:var(--sub);background:var(--muted);padding:8px 12px;border-radius:8px;margin-bottom:14px;}

.notice{background:#ecfdf5;border:1px solid #a7f3d0;border-radius:12px;padding:16px 20px;display:flex;gap:12px;align-items:flex-start;margin-top:32px;}
.notice .ico{font-size:22px;}
.notice h4{font-size:14px;color:var(--brand-dark);margin-bottom:4px;}
.notice p{font-size:13px;color:#065f46;}

.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:24px;}
.step{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px;text-align:center;}
.step .n{width:38px;height:38px;border-radius:50%;background:var(--grad);color:#fff;font-weight:800;
  display:flex;align-items:center;justify-content:center;margin:0 auto 12px;font-size:16px;}
.step h4{font-size:15px;font-weight:700;margin-bottom:6px;}
.step p{font-size:13px;color:var(--sub);}

/* ---------- 响应式 ---------- */
@media(max-width:1024px){
  .hero .container{grid-template-columns:1fr;gap:36px;}
  .terminal{max-width:560px;margin:0 auto;}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .detail .grid-3{grid-template-columns:repeat(2,1fr);}
  .stats .grid-4{grid-template-columns:repeat(2,1fr);gap:18px;}
  .cta .container{grid-template-columns:1fr;gap:24px;}
  .foot-grid{grid-template-columns:1fr 1fr;}
}
@media(max-width:768px){
  .nav-links{position:fixed;top:68px;left:0;right:0;background:#fff;flex-direction:column;
    padding:20px;gap:4px;border-bottom:1px solid var(--line);transform:translateY(-150%);transition:.3s;box-shadow:0 12px 30px rgba(0,0,0,.08);}
  .nav-links.open{transform:translateY(0);}
  .hamburger{display:flex;}
  .nav-cta .btn-ghost{display:none;}
  .hero h1{font-size:34px;}
  .section-head h2{font-size:26px;}
  .grid-3,.detail .grid-3,.grid-2,.steps{grid-template-columns:1fr;}
  .stats .grid-4{grid-template-columns:1fr 1fr;}
  .foot-grid{grid-template-columns:1fr;}
  .cta{padding:32px 24px;margin:0 12px;}
  .page-hero h1{font-size:30px;}
}
@media(max-width:480px){
  .hero-stats{gap:16px;}
  .hstat{font-size:20px;}
  .topbar .container{font-size:11px;}
}