/* Trading 212 外汇中文站 — 站点样式
   配色与排版参照 Trading 212 主站：白底、深蓝墨色、明亮品牌蓝、留白充裕 */

:root{
  --ink:#0A1A33;
  --ink-2:#33415C;
  --muted:#6B7A90;
  --blue:#0A5BFF;
  --blue-dark:#0038C4;
  --blue-tint:#EAF1FF;
  --bg:#FFFFFF;
  --bg-soft:#F5F8FD;
  --border:#E5EAF3;
  --navy:#061129;
  --navy-2:#0B1E40;
  --radius:16px;
  --radius-sm:10px;
  --maxw:1140px;
  --shadow:0 18px 50px -24px rgba(10,40,90,.28);
  --shadow-sm:0 6px 22px -14px rgba(10,40,90,.35);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB",
    "Microsoft YaHei UI","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",
    "Heiti SC",sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  color:var(--ink);
  background:var(--bg);
  line-height:1.7;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
a{color:var(--blue);text-decoration:none}
img,svg{max-width:100%;display:block}
h1,h2,h3,h4{line-height:1.25;color:var(--ink);margin:0;font-weight:700;letter-spacing:-.01em}
p{margin:0}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.en{font-family:Arial,Helvetica,"Segoe UI",var(--font)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5em;
  font-weight:600;font-size:15px;line-height:1;cursor:pointer;
  padding:14px 26px;border-radius:999px;border:1.5px solid transparent;
  transition:transform .15s ease,box-shadow .2s ease,background .2s ease,color .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 10px 24px -10px rgba(10,91,255,.7)}
.btn-primary:hover{background:var(--blue-dark);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--border)}
.btn-ghost:hover{border-color:var(--blue);color:var(--blue)}
.btn-light{background:#fff;color:var(--blue)}
.btn-light:hover{transform:translateY(-1px);box-shadow:0 14px 30px -12px rgba(0,0,0,.4)}
.btn-lg{padding:17px 34px;font-size:16px}

/* ---------- 顶部导航 ---------- */
header.nav{
  position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);
  backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--border);
}
.nav-inner{display:flex;align-items:center;gap:28px;height:70px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px;color:var(--ink)}
.brand .mark{width:32px;height:32px}
.brand .b-sub{color:var(--muted);font-weight:600;font-size:13px;margin-left:2px}
.nav-links{display:flex;gap:6px;margin-left:auto}
.nav-links a{
  color:var(--ink-2);font-weight:500;font-size:15px;padding:9px 14px;border-radius:8px;
  transition:background .15s ease,color .15s ease;
}
.nav-links a:hover{background:var(--bg-soft);color:var(--ink)}
.nav-links a.active{color:var(--blue)}
.nav-cta{margin-left:8px}
.nav-toggle{display:none;margin-left:auto;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--ink);margin:5px 0;border-radius:2px;transition:.2s}

/* ---------- 通用区块 ---------- */
section{padding:84px 0}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;color:var(--blue);margin-bottom:16px;
}
.section-head{max-width:680px;margin-bottom:48px}
.section-head h2{font-size:clamp(26px,3.4vw,40px)}
.section-head p{color:var(--muted);font-size:17px;margin-top:14px}
.lead{color:var(--ink-2);font-size:18px}

/* ---------- 英雄区 ---------- */
.hero{padding:72px 0 64px;background:
  radial-gradient(900px 500px at 85% -10%,rgba(10,91,255,.10),transparent 60%),
  var(--bg);}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero h1{font-size:clamp(34px,5vw,58px);letter-spacing:-.02em}
.hero h1 .accent{color:var(--blue)}
.hero p.sub{font-size:19px;color:var(--ink-2);margin-top:22px;max-width:520px}
.hero-actions{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap}
.hero-note{margin-top:18px;color:var(--muted);font-size:13.5px}
.hero-stats{display:flex;gap:40px;margin-top:44px;flex-wrap:wrap}
.hero-stats .num{font-size:30px;font-weight:700;color:var(--ink)}
.hero-stats .lbl{color:var(--muted);font-size:14px;margin-top:2px}
.hero-visual{position:relative}
.device{
  background:#fff;border:1px solid var(--border);border-radius:22px;padding:22px;
  box-shadow:var(--shadow);
}
.device .row{display:flex;justify-content:space-between;align-items:center;padding:12px 6px;border-bottom:1px solid var(--bg-soft)}
.device .row:last-child{border-bottom:0}
.tk{display:flex;align-items:center;gap:11px}
.tk .dot{width:34px;height:34px;border-radius:9px;background:var(--blue-tint);display:flex;align-items:center;justify-content:center;font-weight:700;color:var(--blue);font-size:13px}
.tk .nm{font-weight:600;font-size:14.5px}
.tk .mk{color:var(--muted);font-size:12.5px}
.pr{text-align:right}
.pr .p{font-weight:700;font-size:14.5px}
.pr .up{color:#0a9d57;font-size:12.5px;font-weight:600}
.pr .dn{color:#d23f4b;font-size:12.5px;font-weight:600}

/* ---------- 卡片网格 ---------- */
.grid{display:grid;gap:22px}
.g-3{grid-template-columns:repeat(3,1fr)}
.g-4{grid-template-columns:repeat(4,1fr)}
.g-2{grid-template-columns:repeat(2,1fr)}
.card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:28px;transition:transform .18s ease,box-shadow .2s ease,border-color .2s ease;
}
.card.hoverable:hover{transform:translateY(-3px);box-shadow:var(--shadow-sm);border-color:#cfdcf7}
.card .ico{
  width:46px;height:46px;border-radius:12px;background:var(--blue-tint);
  display:flex;align-items:center;justify-content:center;margin-bottom:18px;color:var(--blue);
}
.card h3{font-size:19px;margin-bottom:10px}
.card p{color:var(--muted);font-size:15px}

/* ---------- 浅底区 ---------- */
.soft{background:var(--bg-soft)}

/* ---------- 分栏特性 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.feature-list{margin-top:24px;display:flex;flex-direction:column;gap:18px}
.feature-list li{list-style:none;display:flex;gap:14px;align-items:flex-start}
.feature-list .ck{flex:none;width:24px;height:24px;border-radius:50%;background:var(--blue-tint);color:var(--blue);display:flex;align-items:center;justify-content:center;margin-top:3px}
.feature-list .ft h4{font-size:16.5px}
.feature-list .ft p{color:var(--muted);font-size:14.5px;margin-top:3px}
.panel{background:linear-gradient(160deg,#0B1E40,#061129);border-radius:22px;padding:34px;color:#fff;box-shadow:var(--shadow)}
.panel .bar{height:10px;border-radius:6px;background:rgba(255,255,255,.12);margin:14px 0}
.panel .bar span{display:block;height:100%;border-radius:6px;background:linear-gradient(90deg,#3d7bff,#7fb4ff)}

/* ---------- 数据条 ---------- */
.stat-band{background:var(--navy);color:#fff}
.stat-band .grid{text-align:center}
.stat-band .num{font-size:clamp(28px,3.5vw,42px);font-weight:700}
.stat-band .num .en{font-weight:700}
.stat-band .lbl{color:#9fb1cf;font-size:14.5px;margin-top:6px}

/* ---------- 步骤 ---------- */
.steps{counter-reset:step;display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.step{position:relative;padding-top:8px}
.step .n{font-size:14px;font-weight:700;color:var(--blue);letter-spacing:.1em}
.step h3{font-size:18px;margin:10px 0 8px}
.step p{color:var(--muted);font-size:15px}

/* ---------- 最终 CTA（仅首页） ---------- */
.cta-final{background:linear-gradient(160deg,#0B1E40,#061129);color:#fff;text-align:center}
.cta-final h2{font-size:clamp(26px,3.6vw,40px)}
.cta-final p{color:#aebfda;font-size:17px;margin:16px auto 30px;max-width:560px}

/* ---------- 页面顶部小标题（分页） ---------- */
.page-hero{padding:64px 0 40px;background:
  radial-gradient(700px 360px at 90% 0%,rgba(10,91,255,.08),transparent 60%),var(--bg);}
.page-hero h1{font-size:clamp(30px,4.4vw,48px)}
.page-hero p{color:var(--ink-2);font-size:18px;margin-top:16px;max-width:640px}
.crumb{font-size:13.5px;color:var(--muted);margin-bottom:18px}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--blue)}

/* ---------- 正文排版 ---------- */
.prose h2{font-size:26px;margin:8px 0 14px}
.prose h3{font-size:19px;margin:30px 0 10px}
.prose p{color:var(--ink-2);margin:12px 0;font-size:16.5px}
.prose ul{margin:14px 0;padding-left:0;list-style:none;display:flex;flex-direction:column;gap:12px}
.prose ul li{position:relative;padding-left:28px;color:var(--ink-2)}
.prose ul li::before{content:"";position:absolute;left:4px;top:11px;width:8px;height:8px;border-radius:50%;background:var(--blue)}

/* ---------- 表格 ---------- */
.tbl{width:100%;border-collapse:collapse;margin:8px 0;font-size:15.5px;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}
.tbl th,.tbl td{padding:15px 18px;text-align:left;border-bottom:1px solid var(--border)}
.tbl th{background:var(--bg-soft);font-weight:700;color:var(--ink)}
.tbl tr:last-child td{border-bottom:0}
.tbl td{color:var(--ink-2)}

/* ---------- FAQ ---------- */
.faq{display:flex;flex-direction:column;gap:14px}
.qa{border:1px solid var(--border);border-radius:var(--radius);padding:24px 26px;background:#fff}
.qa h3{font-size:17.5px;margin-bottom:8px}
.qa p{color:var(--muted);font-size:15.5px}

/* ---------- 页脚 ---------- */
footer.site{background:var(--navy);color:#c6d2e6;padding:64px 0 30px;font-size:14.5px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:48px}
footer.site .brand{color:#fff;margin-bottom:16px}
footer.site h4{color:#fff;font-size:15px;letter-spacing:.04em;margin-bottom:16px}
footer.site .intro{color:#92a3c0;max-width:340px;line-height:1.8}
footer.site ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
footer.site ul li{color:#aebbd4}
footer.site .contact li{display:flex;gap:9px;align-items:flex-start;color:#aebbd4}
footer.site .contact svg{flex:none;margin-top:3px;opacity:.7}
.risk{border-top:1px solid rgba(255,255,255,.1);margin-top:44px;padding-top:26px;color:#7e8eaa;font-size:12.5px;line-height:1.8}
.copy{margin-top:18px;color:#6f7e99;font-size:12.5px}

/* ---------- 响应式 ---------- */
@media (max-width:960px){
  .hero-grid,.split{grid-template-columns:1fr;gap:40px}
  .g-4{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:720px){
  section{padding:60px 0}
  .nav-links{
    position:absolute;top:70px;left:0;right:0;background:#fff;border-bottom:1px solid var(--border);
    flex-direction:column;gap:0;padding:8px 16px 18px;display:none;box-shadow:var(--shadow-sm);
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:13px 10px;border-radius:8px}
  .nav-cta{margin:8px 0 0}
  .nav-toggle{display:block}
  .g-3,.g-2,.g-4{grid-template-columns:1fr}
  .hero-stats{gap:28px}
  .foot-grid{grid-template-columns:1fr;gap:30px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;scroll-behavior:auto!important}
}