/* ============================================================
   Mitrade 外汇中文站 — 共用样式表
   配色参考 Mitrade 主站：深海军蓝 + 薄荷翠绿
   ============================================================ */

:root{
  --navy:#0C1A2E;
  --navy-2:#13263F;
  --navy-3:#1B3251;
  --green:#00C281;
  --green-dark:#00A86E;
  --green-soft:#E6F8F1;
  --ink:#1A2B42;
  --muted:#5C6B7E;
  --line:#E4E9EF;
  --bg:#FFFFFF;
  --bg-soft:#F5F8FB;
  --radius:14px;
  --maxw:1160px;
  --shadow:0 10px 30px rgba(12,26,46,.08);
}

*{box-sizing:border-box;margin:0;padding:0}

html{scroll-behavior:smooth}

body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB",
    "Microsoft YaHei","微软雅黑","Heiti SC",sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}

/* ---------- 顶部导航 ---------- */
.nav{
  position:sticky;top:0;z-index:50;
  background:rgba(12,26,46,.96);
  backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.nav-inner{
  display:flex;align-items:center;gap:26px;
  height:66px;
}
.brand{display:flex;align-items:center;gap:11px;margin-right:auto}
.brand svg{width:34px;height:34px}
.brand-name{color:#fff;font-size:19px;font-weight:700;letter-spacing:.5px}
.brand-name span{color:var(--green)}

.menu{display:flex;align-items:center;gap:30px;list-style:none}
.menu a{
  color:#C6D2E0;font-size:15px;font-weight:500;
  padding:6px 0;position:relative;transition:color .2s;
}
.menu a:hover,.menu a[aria-current="page"]{color:#fff}
.menu a[aria-current="page"]::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;
  background:var(--green);border-radius:2px;
}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-weight:600;border-radius:999px;cursor:pointer;
  transition:transform .15s,box-shadow .2s,background .2s;
}
.btn-open{
  background:var(--green);color:#06231A;
  padding:10px 22px;font-size:15px;
  box-shadow:0 6px 18px rgba(0,194,129,.35);
}
.btn-open:hover{background:var(--green-dark);transform:translateY(-1px)}

.nav-cta{display:flex;align-items:center;gap:16px}
.nav-open-desktop{display:inline-flex}

/* 移动端菜单（纯 CSS） */
.nav-toggle,.nav-check{display:none}
.nav-toggle{
  width:40px;height:40px;border:none;background:transparent;cursor:pointer;
  flex-direction:column;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;height:2px;width:22px;background:#fff;border-radius:2px;transition:.25s}

/* ---------- 通用区块 ---------- */
.section{padding:78px 0}
.section.soft{background:var(--bg-soft)}
.section.navy{background:var(--navy);color:#E7EEF6}

.eyebrow{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:2px;
  color:var(--green-dark);text-transform:uppercase;margin-bottom:14px;
}
.section.navy .eyebrow{color:var(--green)}

h1,h2,h3{line-height:1.3;color:var(--ink);font-weight:700}
.section.navy h1,.section.navy h2,.section.navy h3{color:#fff}
h2.title{font-size:30px;margin-bottom:16px;letter-spacing:.3px}
.lead{font-size:17px;color:var(--muted);max-width:720px}
.section.navy .lead{color:#A9BBD0}

.center{text-align:center}
.center .lead{margin-left:auto;margin-right:auto}

/* ---------- Hero ---------- */
.hero{
  background:
    radial-gradient(1100px 520px at 78% -10%,rgba(0,194,129,.20),transparent 60%),
    linear-gradient(160deg,#0C1A2E 0%,#0E1F37 55%,#102744 100%);
  color:#fff;position:relative;overflow:hidden;
}
.hero-grid{
  display:grid;grid-template-columns:1.08fr .92fr;gap:48px;align-items:center;
  padding:84px 0 90px;
}
.hero h1{font-size:43px;line-height:1.25;color:#fff;letter-spacing:.5px}
.hero h1 b{color:var(--green);font-weight:700}
.hero p{margin-top:20px;font-size:18px;color:#B7C6DA;max-width:520px}
.hero-actions{margin-top:34px;display:flex;gap:14px;flex-wrap:wrap}
.btn-ghost{
  border:1px solid rgba(255,255,255,.28);color:#fff;
  padding:10px 24px;font-size:15px;background:transparent;
}
.btn-ghost:hover{border-color:var(--green);color:var(--green)}
.btn-open.lg{padding:13px 30px;font-size:16px}

.hero-note{margin-top:26px;font-size:13px;color:#7E91AA}

/* Hero 视觉卡：上扬趋势线（招牌元素） */
.hero-card{
  background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  border:1px solid rgba(255,255,255,.10);
  border-radius:20px;padding:26px;backdrop-filter:blur(4px);
}
.hero-card h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:4px}
.hero-card .sub{color:#8DA0B8;font-size:13px;margin-bottom:18px}
.spark{width:100%;height:150px}
.quote-row{display:flex;justify-content:space-between;
  padding:11px 0;border-top:1px solid rgba(255,255,255,.08);font-size:14px}
.quote-row span:first-child{color:#C6D2E0}
.quote-row span:last-child{color:var(--green);font-weight:600;font-variant-numeric:tabular-nums}

/* ---------- 数据条 ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.stat .num{font-size:34px;font-weight:700;color:var(--green-dark);
  font-variant-numeric:tabular-nums;letter-spacing:.5px}
.section.navy .stat .num{color:var(--green)}
.stat .lab{font-size:14px;color:var(--muted);margin-top:6px}
.section.navy .stat .lab{color:#A9BBD0}

/* ---------- 卡片网格 ---------- */
.grid{display:grid;gap:22px}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.g2{grid-template-columns:repeat(2,1fr)}

.card{
  background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 24px;transition:transform .18s,box-shadow .2s,border-color .2s;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#D5E7E0}
.card .ico{
  width:46px;height:46px;border-radius:12px;background:var(--green-soft);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.card .ico svg{width:24px;height:24px;stroke:var(--green-dark)}
.card h3{font-size:18px;margin-bottom:9px}
.card p{font-size:15px;color:var(--muted)}

/* 产品行情卡 */
.market{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 20px;border:1px solid var(--line);border-radius:12px;background:#fff;
}
.market .mname{font-weight:600;font-size:16px}
.market .mtag{font-size:13px;color:var(--muted);margin-top:2px}
.market .mmeta{text-align:right;font-size:13px;color:var(--muted)}

/* 步骤 */
.steps{counter-reset:step;display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.step{position:relative;padding-left:8px}
.step .n{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:12px;background:var(--navy);color:var(--green);
  font-weight:700;font-size:18px;margin-bottom:14px;
}
.step h3{font-size:17px;margin-bottom:7px}
.step p{font-size:15px;color:var(--muted)}

/* 特色列表（带勾） */
.checks{list-style:none;display:grid;gap:14px}
.checks li{display:flex;gap:12px;align-items:flex-start;font-size:16px;color:var(--ink)}
.checks li::before{
  content:"";flex:0 0 22px;height:22px;margin-top:3px;border-radius:50%;
  background:var(--green-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%2300A86E' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center/14px no-repeat;
}

.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}

/* 表格 */
.tbl{width:100%;border-collapse:collapse;font-size:15px;background:#fff;
  border:1px solid var(--line);border-radius:12px;overflow:hidden}
.tbl th,.tbl td{padding:14px 18px;text-align:left;border-bottom:1px solid var(--line)}
.tbl th{background:var(--bg-soft);color:var(--ink);font-weight:600}
.tbl tr:last-child td{border-bottom:none}
.tbl td:last-child,.tbl th:last-child{text-align:right;font-variant-numeric:tabular-nums}

/* FAQ */
.faq{display:grid;gap:16px}
.qa{border:1px solid var(--line);border-radius:12px;padding:22px 24px;background:#fff}
.qa h3{font-size:16px;margin-bottom:8px;color:var(--ink)}
.qa p{font-size:15px;color:var(--muted)}

/* 首页 CTA 横幅（仅首页使用） */
.cta-band{
  background:linear-gradient(120deg,#0C1A2E,#123A2C);
  border-radius:20px;padding:46px 40px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap;
}
.cta-band h2{color:#fff;font-size:26px;margin-bottom:8px}
.cta-band p{color:#A9BBD0;font-size:15px;max-width:560px}

/* 风险提示 */
.risk{background:#0A1626;color:#7E91AA;font-size:12.5px;line-height:1.7;padding:24px 0}
.risk .wrap{max-width:var(--maxw)}

/* ---------- 页脚（三列） ---------- */
.footer{background:var(--navy);color:#A9BBD0;padding:56px 0 22px}
.f-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px}
.f-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.f-brand svg{width:30px;height:30px}
.f-brand b{color:#fff;font-size:17px}
.f-brand b span{color:var(--green)}
.footer h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600}
.footer p{font-size:14px;line-height:1.8}
.f-list{list-style:none;display:grid;gap:10px}
.f-list li{font-size:14px;color:#A9BBD0}
.f-contact li{display:flex;gap:9px;align-items:flex-start;font-size:14px;margin-bottom:10px}
.f-contact svg{width:17px;height:17px;stroke:var(--green);flex:0 0 17px;margin-top:3px}
.f-contact a:hover{color:var(--green)}
.f-bottom{
  border-top:1px solid rgba(255,255,255,.08);margin-top:40px;padding-top:20px;
  font-size:13px;color:#7E91AA;display:flex;justify-content:space-between;
  flex-wrap:wrap;gap:10px;
}

/* ---------- 内页页头 ---------- */
.page-head{
  background:linear-gradient(160deg,#0C1A2E,#102744);color:#fff;
  padding:64px 0 58px;
}
.page-head h1{font-size:34px;color:#fff;margin-bottom:12px}
.page-head p{color:#A9BBD0;font-size:17px;max-width:680px}

/* ---------- 响应式 ---------- */
@media(max-width:920px){
  .hero-grid{grid-template-columns:1fr;gap:36px;padding:64px 0 70px}
  .hero h1{font-size:34px}
  .split{grid-template-columns:1fr;gap:30px}
  .g4{grid-template-columns:repeat(2,1fr)}
  .g3{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr);gap:30px}
  .f-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:680px){
  .nav-open-desktop{display:none}
  .nav-toggle{display:flex}
  .menu{
    position:fixed;inset:66px 0 auto 0;flex-direction:column;gap:0;
    background:var(--navy-2);padding:8px 0;
    max-height:0;overflow:hidden;transition:max-height .3s ease;
    border-bottom:1px solid rgba(255,255,255,.08);
  }
  .menu li{width:100%}
  .menu a{display:block;padding:14px 24px;border-bottom:1px solid rgba(255,255,255,.05)}
  .menu a[aria-current="page"]::after{display:none}
  .menu .m-open{margin:14px 24px;display:block;text-align:center}
  .nav-check:checked ~ .menu{max-height:420px}
  .nav-check:checked ~ .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav-check:checked ~ .nav-toggle span:nth-child(2){opacity:0}
  .nav-check:checked ~ .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .section{padding:54px 0}
  h2.title{font-size:25px}
  .hero h1{font-size:29px}
  .g4,.g3,.g2,.stats{grid-template-columns:1fr}
  .f-grid{grid-template-columns:1fr;gap:30px}
  .cta-band{padding:34px 26px}
  .page-head h1{font-size:27px}
}
.m-open{display:none}
@media(max-width:680px){.m-open{display:block}}

/* 招牌元素：趋势线绘制动画 */
.spark-line{
  stroke-dasharray:900;stroke-dashoffset:900;
  animation:draw 1.6s ease-out .2s forwards;
}
@keyframes draw{to{stroke-dashoffset:0}}
@media(prefers-reduced-motion:reduce){
  .spark-line{animation:none;stroke-dashoffset:0}
  html{scroll-behavior:auto}
}