:root{
  --bg:#181208;
  --bg-2:#201a0d;
  --panel:#2b2412;
  --panel-2:#3e3320;
  --line:rgba(255,255,255,.08);
  --text:#e9eef7;
  --muted:#9aa7bd;
  --primary:#d97706;
  --secondary:#0891b2;
  --gold:#d97706;
  --green:#0891b2;
  --red:#ef4444;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

.copr-container{max-width:1180px;margin:0 auto;padding:0 24px}

/* Header */
.copr-hdr{
  position:sticky;top:0;z-index:50;
  background:rgba(24,18,8,.92);
  backdrop-filter:saturate(140%) blur(10px);
  border-bottom:1px solid var(--line);
}
.copr-hdr-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.copr-logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:21.0px}
.copr-logo-mark{
  width:34px;height:34px;border-radius:14.4px;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  display:flex;align-items:center;justify-content:center;
  color:#181208;font-weight:900;font-size:18.9px;
  box-shadow:0 4px 16px rgba(217,119,6,.25);
}
.copr-nav{display:flex;align-items:center;gap:28px}
.copr-nav a{color:var(--muted);font-size:15.8px;transition:color .2s}
.copr-nav a:hover{color:var(--text)}
.copr-nav-cta{
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  color:#181208 !important;
  padding:8px 18px;border-radius:12.8px;font-weight:700;
}
.copr-nav-cta:hover{filter:brightness(1.1)}

/* Hero */
.copr-hero{
  position:relative;
  padding:64px 0 80px;
  background:
    radial-gradient(900px 500px at 80% -10%, rgba(217,119,6,.12), transparent 60%),
    radial-gradient(700px 400px at 0% 30%, rgba(34,197,94,.08), transparent 60%),
    linear-gradient(180deg,var(--bg-2),var(--bg));
  overflow:hidden;
}
.copr-hero-inner{
  display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;
}
.copr-hero-badge{
  display:inline-block;
  padding:6px 14px;border-radius:1598.4px;
  background:rgba(217,119,6,.12);
  color:var(--gold);
  font-size:13.7px;font-weight:600;
  border:1px solid rgba(217,119,6,.25);
  margin-bottom:18px;
}
.copr-hero-title{
  font-size:50.4px;line-height:1.18;font-weight:800;letter-spacing:-.5px;
  background:linear-gradient(180deg,#fff 30%,#cfd9ec);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  margin-bottom:18px;
}
.copr-hero-sub{font-size:17.9px;color:var(--muted);max-width:560px;margin-bottom:30px}

.copr-dl-row{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:36px}
.copr-dl-btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:12px 18px;min-width:170px;
  border-radius:19.2px;
  background:var(--panel);border:1px solid var(--line);
  color:var(--text);
  transition:transform .15s ease,border-color .15s,background .15s;
}
.copr-dl-btn:hover{transform:translateY(-2px);border-color:rgba(217,119,6,.4);background:var(--panel-2)}
.copr-dl-btn span{display:flex;flex-direction:column;line-height:1.1;text-align:left}
.copr-dl-btn small{font-size:11.6px;color:var(--muted);font-weight:500}
.copr-dl-btn strong{font-size:16.8px;font-weight:700}
.copr-dl-btn svg{flex-shrink:0;color:var(--gold)}
.copr-dl-android svg{color:#0891b2}
.copr-dl-ios svg{color:#e9eef7}
.copr-dl-mac svg{color:#cbd5e1}
.copr-dl-win svg{color:#0ea5e9}

.copr-hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;list-style:none;
  padding:18px;border-radius:22.4px;
  background:linear-gradient(135deg,rgba(255,255,255,.04),rgba(255,255,255,.02));
  border:1px solid var(--line);max-width:600px;
}
.copr-hero-stats li{display:flex;flex-direction:column;align-items:flex-start}
.copr-hero-stats b{font-size:23.1px;color:var(--gold);font-weight:800}
.copr-hero-stats span{font-size:12.6px;color:var(--muted)}

/* Phone mock */
.copr-hero-art{display:flex;justify-content:center;align-items:center}
.copr-phone{
  width:300px;height:500px;border-radius:57.6px;
  background:linear-gradient(160deg,#3e3320,#201a0d);
  padding:18px 14px;
  box-shadow:
    0 30px 80px rgba(0,0,0,.45),
    inset 0 0 0 1px rgba(255,255,255,.06);
  position:relative;
}
.copr-phone:before{
  content:"";position:absolute;left:50%;top:10px;transform:translateX(-50%);
  width:90px;height:18px;border-radius:19.2px;background:#181208;
}
.copr-phone-screen{
  margin-top:24px;height:calc(100% - 24px);
  border-radius:35.2px;background:var(--bg);
  padding:14px 12px;display:flex;flex-direction:column;gap:8px;overflow:hidden;
}
.copr-ticker{
  display:flex;justify-content:space-between;align-items:center;
  padding:10px 12px;border-radius:16px;
  background:rgba(255,255,255,.03);font-size:13.7px;
}
.copr-ticker-sym{font-weight:700;color:var(--text)}
.copr-ticker-price{color:var(--muted)}
.copr-ticker-up{color:var(--green);font-weight:700}
.copr-ticker-down{color:var(--red);font-weight:700}
.copr-chart{
  flex:1;margin-top:8px;border-radius:16px;
  background:
    linear-gradient(180deg,rgba(217,119,6,.18),transparent 70%),
    repeating-linear-gradient(0deg,rgba(255,255,255,.04) 0 1px,transparent 1px 28px),
    repeating-linear-gradient(90deg,rgba(255,255,255,.04) 0 1px,transparent 1px 28px),
    var(--panel);
  position:relative;overflow:hidden;
}
.copr-chart:after{
  content:"";position:absolute;left:0;right:0;bottom:24%;height:60%;
  background:
    radial-gradient(circle at 10% 80%,rgba(217,119,6,.6),transparent 30%),
    radial-gradient(circle at 60% 30%,rgba(34,197,94,.4),transparent 35%),
    radial-gradient(circle at 90% 60%,rgba(217,119,6,.4),transparent 30%);
  filter:blur(8px);
}

/* Sections */
section{padding:80px 0}
.copr-sec-title{font-size:35.7px;font-weight:800;text-align:center;margin-bottom:12px}
.copr-sec-sub{text-align:center;color:var(--muted);max-width:680px;margin:0 auto 50px}

.copr-grid{display:grid;gap:22px}
.copr-grid-3{grid-template-columns:repeat(3,1fr)}

.copr-features{background:linear-gradient(180deg,var(--bg),var(--bg-2))}
.copr-card{
  background:var(--panel);border:1px solid var(--line);border-radius:22.4px;
  padding:28px 24px;transition:transform .2s,border-color .2s;
}
.copr-card:hover{transform:translateY(-4px);border-color:rgba(217,119,6,.3)}
.copr-card-icon{
  width:54px;height:54px;border-radius:19.2px;
  background:linear-gradient(135deg,rgba(217,119,6,.18),rgba(217,119,6,.05));
  display:flex;align-items:center;justify-content:center;font-size:27.3px;
  margin-bottom:18px;
}
.copr-card h3{font-size:18.9px;font-weight:700;margin-bottom:8px}
.copr-card p{color:var(--muted);font-size:15.2px}

/* Testimonials */
.copr-testimonials{background:var(--bg-2)}
.copr-t-card{
  background:var(--panel);border:1px solid var(--line);border-radius:22.4px;padding:26px 24px;
}
.copr-t-head{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.copr-t-avatar{
  width:46px;height:46px;border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  display:flex;align-items:center;justify-content:center;
  color:#181208;font-weight:800;font-size:18.9px;
}
.copr-t-head b{display:block;font-size:15.8px}
.copr-t-head span{display:block;color:var(--muted);font-size:13.1px}
.copr-t-card p{color:#cbd5e1;font-size:15.2px;margin-bottom:12px}
.copr-rating{color:var(--gold);font-size:15.8px;letter-spacing:2px}

/* Guide */
.copr-guide{background:linear-gradient(180deg,var(--bg-2),var(--bg))}
.copr-guide-steps{
  list-style:none;display:grid;grid-template-columns:repeat(2,1fr);
  gap:20px;max-width:1000px;margin:0 auto 36px;
}
.copr-step{
  display:flex;gap:18px;
  background:var(--panel);border:1px solid var(--line);border-radius:22.4px;
  padding:24px;transition:border-color .2s,transform .2s;
}
.copr-step:hover{border-color:rgba(217,119,6,.35);transform:translateY(-3px)}
.copr-step-num{
  flex-shrink:0;
  font-size:33.6px;font-weight:900;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  line-height:1;letter-spacing:-1px;
  width:54px;
}
.copr-step-body h3{font-size:17.9px;font-weight:700;margin-bottom:8px}
.copr-step-body p{color:var(--muted);font-size:14.7px;margin-bottom:12px}
.copr-step-actions{display:flex;flex-wrap:wrap;gap:8px}
.copr-step-link{
  display:inline-block;padding:5px 11px;
  background:rgba(217,119,6,.1);border:1px solid rgba(217,119,6,.3);
  border-radius:9.6px;font-size:13.1px;color:var(--gold);font-weight:600;
  transition:background .2s;
}
.copr-step-link:hover{background:rgba(217,119,6,.2)}

.copr-guide-tips{
  max-width:1000px;margin:0 auto;
  background:linear-gradient(135deg,rgba(217,119,6,.05),rgba(34,197,94,.04));
  border:1px solid var(--line);border-radius:22.4px;padding:26px 28px;
}
.copr-guide-tips h3{font-size:17.9px;margin-bottom:14px;font-weight:700}
.copr-guide-tips h3:before{content:"💡 ";margin-right:4px}
.copr-guide-tips ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.copr-guide-tips li{
  color:var(--muted);font-size:14.7px;padding-left:18px;position:relative;line-height:1.7;
}
.copr-guide-tips li:before{
  content:"✓";position:absolute;left:0;top:0;
  color:var(--green);font-weight:900;
}

/* FAQ */
.copr-faq{background:linear-gradient(180deg,var(--bg-2),var(--bg))}
.copr-faq-list{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.copr-faq-list details{
  background:var(--panel);border:1px solid var(--line);border-radius:19.2px;
  padding:18px 22px;transition:border-color .2s;
}
.copr-faq-list details[open]{border-color:rgba(217,119,6,.35)}
.copr-faq-list summary{
  cursor:pointer;font-weight:600;font-size:16.8px;list-style:none;
  display:flex;justify-content:space-between;align-items:center;
}
.copr-faq-list summary::-webkit-details-marker{display:none}
.copr-faq-list summary:after{
  content:"+";color:var(--gold);font-size:23.1px;font-weight:800;transition:transform .2s;
}
.copr-faq-list details[open] summary:after{content:"−"}
.copr-faq-list p{color:var(--muted);margin-top:12px;font-size:15.2px}

/* CTA */
.copr-cta{
  background:linear-gradient(135deg,#101a30 0%,#0e1a35 60%,#181128 100%);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.copr-cta-inner{text-align:center}
.copr-cta h2{font-size:33.6px;font-weight:800;margin-bottom:14px}
.copr-cta p{color:var(--muted);max-width:620px;margin:0 auto 32px}
.copr-cta .copr-dl-row{justify-content:center}

/* Footer */
.copr-ftr{padding:60px 0 0;background:#070d18}
.copr-ftr-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;padding-bottom:40px}
.copr-ftr-col h4{font-size:14.7px;color:var(--text);margin-bottom:14px;font-weight:700}
.copr-ftr-col ul{list-style:none;display:flex;flex-direction:column;gap:8px}
.copr-ftr-col a{color:var(--muted);font-size:14.2px;transition:color .2s}
.copr-ftr-col a:hover{color:var(--gold)}
.copr-ftr-risk{color:var(--muted);font-size:13.7px;line-height:1.7}
.copr-ftr-copy{
  border-top:1px solid var(--line);padding:22px 24px;
  color:var(--muted);font-size:13.7px;text-align:center;
}

/* Mobile */
@media (max-width:880px){
  .copr-hero{padding:40px 0 60px}
  .copr-hero-inner{grid-template-columns:1fr;gap:32px}
  .copr-hero-title{font-size:33.6px}
  .copr-hero-stats{grid-template-columns:repeat(2,1fr);max-width:none}
  .copr-hero-art{order:-1}
  .copr-phone{width:240px;height:400px}
  .copr-grid-3{grid-template-columns:1fr}
  .copr-ftr-grid{grid-template-columns:repeat(2,1fr)}
  .copr-guide-steps{grid-template-columns:1fr}
  .copr-nav{display:none}
  .copr-sec-title{font-size:27.3px}
  section{padding:56px 0}
}

/* ─── Multi-page extras ─── */
.copr-page-hero{
  padding:80px 0 60px;
  background:linear-gradient(180deg,var(--bg-2),var(--bg));
  text-align:center;
  border-bottom:1px solid var(--line);
}
.copr-page-title{
  font-size:44.1px;line-height:1.15;font-weight:800;letter-spacing:-1px;
  background:linear-gradient(180deg,#fff 30%,#cfd9ec);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  margin:16px 0 18px;
}
.copr-page-sub{font-size:17.3px;color:var(--muted);max-width:760px;margin:0 auto;line-height:1.7}
.copr-sec-title-left{font-size:25.2px;font-weight:800;margin-bottom:18px;text-align:left}

/* Platform cards for download.copr-html */
.copr-platforms{padding:64px 0}
.copr-platform-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:40px}
.copr-platform-card{
  background:var(--panel);border:1px solid var(--line);border-radius:25.6px;padding:32px 28px;
  transition:transform .2s,border-color .2s;
}
.copr-platform-card:hover{transform:translateY(-4px);border-color:rgba(217,119,6,.35)}
.copr-platform-head{display:flex;align-items:flex-start;gap:18px;margin-bottom:22px}
.copr-platform-icon{
  flex-shrink:0;width:64px;height:64px;border-radius:22.4px;
  background:linear-gradient(135deg,rgba(217,119,6,.2),rgba(217,119,6,.08));
  display:flex;align-items:center;justify-content:center;color:var(--gold);
}
.copr-platform-icon-android{background:linear-gradient(135deg,rgba(34,197,94,.2),rgba(34,197,94,.08));color:#0891b2}
.copr-platform-icon-ios{background:linear-gradient(135deg,rgba(255,255,255,.15),rgba(255,255,255,.05));color:#fff}
.copr-platform-icon-mac{background:linear-gradient(135deg,rgba(203,213,225,.2),rgba(203,213,225,.08));color:#cbd5e1}
.copr-platform-icon-win{background:linear-gradient(135deg,rgba(14,165,233,.2),rgba(14,165,233,.08));color:#0ea5e9}
.copr-platform-card h3{font-size:18.9px;font-weight:700;margin-bottom:6px}
.copr-platform-tag{font-size:13.7px;color:var(--muted)}
.copr-platform-info{
  list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:10px 16px;
  padding:18px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-bottom:22px;
}
.copr-platform-info li{display:flex;justify-content:space-between;align-items:center;font-size:14.2px}
.copr-platform-info span{color:var(--muted)}
.copr-platform-info b{color:var(--text);font-weight:600}
.copr-platform-card .copr-dl-btn{width:100%;justify-content:center;margin-bottom:22px}
.copr-platform-steps h4{font-size:15.2px;font-weight:700;margin-bottom:12px;color:var(--gold)}
.copr-platform-steps ol{padding-left:22px;color:var(--muted);font-size:14.7px}
.copr-platform-steps li{margin-bottom:8px;line-height:1.6}

/* FAQ categories */
.copr-faq-cat{margin-bottom:48px}
.copr-faq-cat:last-child{margin-bottom:0}

/* About page */
.copr-about-section{padding:72px 0;border-bottom:1px solid var(--line)}
.copr-about-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:48px;align-items:start}
.copr-about-block h2{font-size:27.3px;font-weight:800;margin-bottom:18px;letter-spacing:-.5px}
.copr-about-block p{color:var(--muted);font-size:15.8px;line-height:1.8;margin-bottom:14px}
.copr-about-stats{list-style:none;display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-bottom:24px}
.copr-about-stats li{padding:18px;border-radius:19.2px;background:var(--panel);border:1px solid var(--line)}
.copr-about-stats b{display:block;font-size:25.2px;color:var(--gold);font-weight:800;margin-bottom:4px}
.copr-about-stats span{color:var(--muted);font-size:13.7px}
.copr-license-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:24px}
.copr-license-card{
  padding:18px 16px;border-radius:19.2px;background:var(--panel);border:1px solid var(--line);
  display:flex;flex-direction:column;gap:6px;
}
.copr-license-card b{font-size:14.7px}
.copr-license-card span{font-size:13.1px;color:var(--muted)}

/* Legal pages (privacy / terms) */
.copr-legal-content{padding:72px 0}
.copr-legal-inner{max-width:840px}
.copr-legal-intro{color:var(--muted);font-size:15.8px;line-height:1.8;padding:20px;background:var(--panel);border-radius:19.2px;border-left:3px solid var(--gold);margin-bottom:32px}
.copr-legal-content h2{font-size:23.1px;font-weight:800;margin:32px 0 14px;padding-bottom:8px;border-bottom:1px solid var(--line);color:var(--text)}
.copr-legal-content p{color:var(--muted);font-size:15.8px;line-height:1.85;margin-bottom:12px}
.copr-legal-content ul{padding-left:24px;color:var(--muted);font-size:15.2px;line-height:1.85;margin-bottom:14px}
.copr-legal-content li{margin-bottom:6px}
.copr-legal-content b{color:var(--text);font-weight:600}

@media (max-width:880px){
  .copr-page-title{font-size:31.5px}
  .copr-platform-grid{grid-template-columns:1fr}
  .copr-about-grid{grid-template-columns:1fr}
  .copr-license-grid{grid-template-columns:repeat(2,1fr)}
  .copr-about-stats{grid-template-columns:repeat(2,1fr)}
}


/* === Hero layout variations (auto-applied per variant via modifier class) === */

/* Layout 2: centered text, phone below (single column) */
.hero-layout-2 .copr-hero-inner{
  grid-template-columns:1fr !important;
  text-align:center;
  justify-items:center;
  max-width:920px;
  margin:0 auto;
  gap:32px;
}
.hero-layout-2 .copr-hero-text{align-items:center;display:flex;flex-direction:column}
.hero-layout-2 .copr-hero-sub{margin-left:auto;margin-right:auto}
.hero-layout-2 .copr-dl-row{justify-content:center}
.hero-layout-2 .copr-hero-stats{margin:0 auto}

/* Layout 3: mirror — text on right, phone on left */
.hero-layout-3 .copr-hero-inner{
  grid-template-columns:.85fr 1.15fr !important;
}
.hero-layout-3 .copr-hero-art{order:-1}

/* Layout 4: text-only, no phone, full-width centered */
.hero-layout-4 .copr-hero-inner{
  grid-template-columns:1fr !important;
  text-align:center;
  max-width:960px;
  margin:0 auto;
}
.hero-layout-4 .copr-hero-text{align-items:center;display:flex;flex-direction:column}
.hero-layout-4 .copr-hero-sub{margin-left:auto;margin-right:auto;max-width:680px}
.hero-layout-4 .copr-hero-art{display:none}
.hero-layout-4 .copr-dl-row{justify-content:center}
.hero-layout-4 .copr-hero-stats{
  margin:0 auto;
  max-width:760px;
}

/* Layout 5: phone-above text-below vertical stack */
.hero-layout-5 .copr-hero-inner{
  grid-template-columns:1fr !important;
  text-align:center;
}
.hero-layout-5 .copr-hero-text{align-items:center;display:flex;flex-direction:column}
.hero-layout-5 .copr-hero-sub{margin-left:auto;margin-right:auto}
.hero-layout-5 .copr-hero-art{order:-1;margin-bottom:8px}
.hero-layout-5 .copr-hero-art .copr-phone{width:240px;height:380px}
.hero-layout-5 .copr-dl-row{justify-content:center}
.hero-layout-5 .copr-hero-stats{margin:0 auto}

@media (max-width:880px){
  .hero-layout-2 .copr-hero-inner,
  .hero-layout-3 .copr-hero-inner,
  .hero-layout-4 .copr-hero-inner,
  .hero-layout-5 .copr-hero-inner{grid-template-columns:1fr !important}
}