:root{
  --bg:#ffffff; --panel:#ffffff; --panel-2:#f5f6f8; --border:#eceef1;
  --text:#16181c; --muted:#707a8a; --primary:#1aa179; --primary-ink:#ffffff;
  --primary-dark:#148a67; --green:#1aa179; --green-soft:#e9f8f1; --red:#e5484d;
  --radius:14px;
  --shadow:0 1px 3px rgba(16,24,40,.04), 0 1px 2px rgba(16,24,40,.03);
  --shadow-lg:0 14px 36px rgba(16,24,40,.10);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);
     font-family:"Inter","SF Pro Display",system-ui,-apple-system,"Segoe UI",Roboto,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC","Noto Sans SC",Arial,sans-serif;
     line-height:1.55;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
     text-rendering:optimizeLegibility;font-feature-settings:"cv11","ss01";letter-spacing:-.006em}
h1,h2,h3{letter-spacing:-.022em;font-weight:800}
h1{letter-spacing:-.03em}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1100px;margin:0 auto;padding:0 20px}
.muted{color:var(--muted)}
.small{font-size:13px}


.site-header{background:#fff;border-bottom:1px solid var(--border);
             position:sticky;top:0;backdrop-filter:blur(8px);z-index:20}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;color:var(--text)}
.brand:hover{text-decoration:none}
.brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:9px;
            background:var(--primary);color:var(--primary-ink);font-weight:900}
.nav-links{display:flex;align-items:center;gap:18px}
.nav-links a{color:var(--muted);font-weight:600}
.nav-links a:hover{color:var(--text);text-decoration:none}


.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;border:0;
     border-radius:11px;padding:11px 20px;font-weight:700;cursor:pointer;font-size:15px;
     transition:transform .12s ease, filter .12s ease, background .12s ease, border-color .12s ease;line-height:1.2}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--primary);color:var(--primary-ink)!important;box-shadow:0 6px 16px rgba(26,161,121,.22)}
.btn-primary:hover{background:var(--primary-dark)}
.btn-ghost{background:#fff;border:1px solid var(--border);color:var(--text)!important}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary)!important}
.btn-green{background:var(--green);color:#fff!important;box-shadow:0 6px 16px rgba(26,161,121,.22)}
.btn-green:hover{background:var(--primary-dark)}
.btn-red{background:var(--red);color:#fff!important;box-shadow:0 6px 16px rgba(229,72,77,.2)}
.btn-red:hover{filter:brightness(1.05)}
.btn-sm{padding:7px 13px;font-size:13px;border-radius:9px}


.hero{position:relative;padding:84px 0 56px;text-align:center}
.hero::before{content:"";position:absolute;inset:0;pointer-events:none;z-index:-1;
  background:radial-gradient(60% 70% at 50% 0%, rgba(26,161,121,.10), rgba(26,161,121,0) 70%)}
.hero h1{font-size:clamp(32px,5.2vw,54px);margin:0 0 16px;line-height:1.08;font-weight:800}
.hero p{font-size:18px;color:var(--muted);max-width:620px;margin:0 auto 30px}
.hero .cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.coins-strip{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:44px}
.coin-chip{background:#fff;border:1px solid var(--border);border-radius:999px;
           padding:8px 15px;font-weight:700;font-size:13px;display:flex;align-items:center;gap:7px;
           box-shadow:var(--shadow)}
.dot{width:9px;height:9px;border-radius:50%}


.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px;margin:50px 0}
.feature{background:var(--panel);border:1px solid var(--border);border-radius:16px;padding:24px;
         box-shadow:var(--shadow);transition:transform .14s ease, box-shadow .14s ease, border-color .14s ease}
.feature:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:#dfe3e8;text-decoration:none}
.feature h3{margin:12px 0 8px;font-size:18px}
.feature .ico{display:inline-grid;place-items:center;width:46px;height:46px;border-radius:12px;
              background:var(--green-soft);font-size:24px}


.auth-card{max-width:430px;margin:56px auto;background:var(--panel);
           border:1px solid var(--border);border-radius:18px;padding:34px;box-shadow:var(--shadow-lg)}
.auth-card h1{margin:0 0 6px;font-size:27px}
.form{display:flex;flex-direction:column;gap:15px;margin-top:20px}
.form label{display:flex;flex-direction:column;gap:7px;font-weight:600;font-size:14px;color:var(--muted)}
.form input,.form select,.form textarea{
  background:#fff;border:1px solid var(--border);border-radius:11px;
  padding:12px 14px;color:var(--text);font-size:15px;font-family:inherit;transition:border-color .12s, box-shadow .12s}
.form input:focus,.form select:focus,.form textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(26,161,121,.14)}
.form select, .ab select{ appearance:none;-webkit-appearance:none;-moz-appearance:none;padding-right:38px;cursor:pointer;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23707a8a' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center}
.form .btn{margin-top:4px;padding:13px}


.alert{padding:12px 15px;border-radius:11px;font-size:14px;margin:4px 0}
.alert.error{background:#fdecec;border:1px solid rgba(229,72,77,.35);color:#c0392b}
.alert.info{background:var(--green-soft);border:1px solid rgba(26,161,121,.35);color:#0f7a53}
.alert.ok{background:var(--green-soft);border:1px solid rgba(26,161,121,.35);color:#0f7a53}
.alert.warn{background:#fff6e5;border:1px solid rgba(247,181,0,.4);color:#9a6b00}


.section-title{display:flex;align-items:center;justify-content:space-between;gap:14px;margin:36px 0 18px;flex-wrap:wrap}
.section-title h2{margin:0;font-size:24px;font-weight:800}


.wallet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:18px}
.wallet{background:var(--panel);border:1px solid var(--border);border-radius:16px;padding:18px;box-shadow:var(--shadow)}
.wallet .w-head{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.wallet .w-ico{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;
               font-weight:800;color:#fff;font-size:13px}
.wallet .w-net{font-size:12px;color:var(--muted)}
.wallet .w-balance{font-size:22px;font-weight:800;margin:4px 0 12px}
.qr-box{background:#fff;padding:10px;border-radius:10px;width:fit-content;margin:0 auto 12px;border:1px solid var(--border)}
.qr-box img, .qr-box canvas{display:block}
.addr{display:flex;gap:8px;align-items:center}
.addr code{flex:1;background:var(--panel-2);border:1px solid var(--border);border-radius:8px;
           padding:8px 10px;font-size:12px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}


.table{width:100%;border-collapse:separate;border-spacing:0;background:var(--panel);
       border:1px solid var(--border);border-radius:16px;overflow:hidden;box-shadow:var(--shadow)}
.table th,.table td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--border);font-size:14px;vertical-align:middle}
.table thead th{background:var(--panel-2);color:var(--muted);font-size:11.5px;text-transform:uppercase;letter-spacing:.05em;font-weight:700}
.table tbody tr{transition:background .12s}
.table tbody tr:hover{background:var(--panel-2)}
.table tr:last-child td{border-bottom:0}
.badge{display:inline-block;padding:4px 11px;border-radius:999px;font-size:12px;font-weight:700}
.badge.buy{background:var(--green-soft);color:#0f7a53}
.badge.sell{background:#fdecec;color:#c0392b}
@media(max-width:640px){ .table th,.table td{padding:10px 11px;font-size:13px} }


.stat-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px;margin:22px 0}
.stat{position:relative;background:var(--panel);border:1px solid var(--border);border-radius:16px;
      padding:20px;box-shadow:var(--shadow);overflow:hidden}
.stat::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--primary);opacity:.9}
.stat .v{font-size:28px;font-weight:800;line-height:1.1}
.stat .l{color:var(--muted);font-size:13px;margin-top:4px}

.filters{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:18px}
.filters select{min-width:150px;background:#fff;border:1px solid var(--border);border-radius:11px;
  padding:11px 36px 11px 14px;font-size:14px;color:var(--text);font-family:inherit;cursor:pointer;
  appearance:none;-webkit-appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23707a8a' stroke-width='3'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 13px center}
.filters select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(26,161,121,.14)}


.trade-layout{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:start}
.trade-info,.trade-chat{background:var(--panel);border:1px solid var(--border);
  border-radius:16px;padding:22px;box-shadow:var(--shadow)}
.trade-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.trade-chat h3{margin:0 0 12px}
.chat-box{height:340px;overflow-y:auto;display:flex;flex-direction:column;gap:10px;
  padding:4px;margin-bottom:12px}
.chat-system{align-self:center;text-align:center;font-size:12.5px;color:var(--muted);
  background:var(--panel-2);border:1px solid var(--border);border-radius:10px;padding:7px 12px;max-width:95%}
.chat-msg{max-width:78%;padding:9px 13px;border-radius:14px;font-size:14px}
.chat-msg.mine{align-self:flex-end;background:var(--primary);color:#fff;border-bottom-right-radius:5px}
.chat-msg.theirs{align-self:flex-start;background:var(--panel-2);border:1px solid var(--border);border-bottom-left-radius:5px}
.chat-meta{font-size:11px;opacity:.7;margin-bottom:3px}
.chat-form{display:flex;gap:8px}
.chat-form input{flex:1;background:#fff;border:1px solid var(--border);border-radius:11px;
  padding:11px 13px;color:var(--text);font-family:inherit}
.chat-form input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(26,161,121,.14)}
@media(max-width:760px){ .trade-layout{grid-template-columns:1fr} }


.rep{display:inline-block;font-size:12px;font-weight:700;padding:3px 9px;border-radius:999px;margin-top:3px}
.rep-good{background:var(--green-soft);color:#0f7a53}
.rep-ok{background:#fff6e5;color:#9a6b00}
.rep-bad{background:#fdecec;color:#c0392b}
.rep-new{background:var(--panel-2);border:1px solid var(--border);color:var(--muted)}


.review-box{background:var(--panel);border:1px solid var(--border);border-radius:16px;
  padding:20px;margin-top:18px;box-shadow:var(--shadow)}
.review-box h3{margin:0 0 6px}
.review-btns{display:flex;gap:10px;margin-top:4px}


.review-list{display:flex;flex-direction:column;gap:12px}
.review-item{background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:15px 17px;box-shadow:var(--shadow)}
.review-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.review-comment{margin-top:8px}


.notif-wrap{position:relative;display:inline-block}
.notif-bell{position:relative;background:transparent;border:0;font-size:20px;cursor:pointer;line-height:1;padding:4px;color:var(--text)}
.notif-badge{position:absolute;top:-4px;right:-6px;background:var(--red);color:#fff;font-size:10px;
  font-weight:800;min-width:16px;height:16px;border-radius:999px;display:flex;align-items:center;
  justify-content:center;padding:0 4px}
.notif-panel{position:absolute;right:0;top:40px;width:320px;max-width:86vw;background:var(--panel);
  border:1px solid var(--border);border-radius:14px;box-shadow:var(--shadow-lg);z-index:50;overflow:hidden}
.notif-head{display:flex;justify-content:space-between;align-items:center;padding:12px 14px;border-bottom:1px solid var(--border)}
.notif-readall{background:transparent;border:0;color:var(--primary);cursor:pointer;font-size:12px;font-weight:700}
.notif-list{max-height:360px;overflow-y:auto}
.notif-item{padding:11px 14px;border-bottom:1px solid var(--border)}
.notif-item.unread{background:rgba(26,161,121,.08)}
.notif-title{font-weight:600;font-size:14px}
.notif-body{color:var(--muted);font-size:12.5px;margin-top:2px}
.notif-time{color:var(--muted);font-size:11px;margin-top:3px}
.notif-empty{padding:22px;text-align:center;color:var(--muted);font-size:13px}


.toast-wrap{position:fixed;top:74px;right:16px;display:flex;flex-direction:column;gap:10px;z-index:100}
.toast{background:var(--panel);border:1px solid var(--border);border-left:3px solid var(--primary);
  border-radius:12px;padding:12px 15px;min-width:220px;max-width:320px;box-shadow:var(--shadow-lg);
  opacity:0;transform:translateX(20px);transition:.3s}
.toast.show{opacity:1;transform:translateX(0)}
.toast strong{display:block;font-size:14px}
.toast span{color:var(--muted);font-size:12.5px}


.bal-flash{animation:balflash 1.2s ease}
@keyframes balflash{0%{color:var(--green)}60%{color:var(--green)}100%{color:inherit}}


.send-tabs{display:flex;gap:8px;margin:10px 0 4px}
.send-tab{flex:1;background:var(--panel-2);border:1px solid var(--border);color:var(--muted);
  padding:11px;border-radius:11px;cursor:pointer;font-weight:700;font-size:14px}
.send-tab.active{background:var(--primary);color:#fff;border-color:transparent}
@media(max-width:640px){
  .nav-links{gap:12px;font-size:14px}
  .nav-links a:not(.btn){display:none}
}


.site-footer{border-top:1px solid var(--border);margin-top:56px;padding:28px 0;color:var(--muted);font-size:13px}
.site-footer a{color:var(--muted)}
.site-footer a:hover{color:var(--primary)}


.portfolio{display:inline-flex;align-items:center;gap:6px;margin-right:6px}
.portfolio-total{font-weight:700;font-variant-numeric:tabular-nums;white-space:nowrap}
.ccy-select{background:transparent;color:inherit;border:1px solid var(--border);
  border-radius:8px;padding:2px 6px;font-size:13px;cursor:pointer}
.ccy-select option{color:#111}
.w-fiat{opacity:.75;font-variant-numeric:tabular-nums}
@media(max-width:640px){ .portfolio-total{font-size:14px} }


.amount-row{display:flex;gap:8px;align-items:stretch}
.amount-row .max-btn{white-space:nowrap}
.amount-field{position:relative;flex:1}
.amount-field .amount-input{width:100%;padding-right:84px}
.unit-toggle{position:absolute;right:6px;top:50%;transform:translateY(-50%);
  border:1px solid var(--border);border-radius:8px;padding:3px 9px;
  font-size:13px;font-weight:700;letter-spacing:.3px;background:#fff;
  color:inherit;cursor:pointer;white-space:nowrap}
.unit-toggle:hover{border-color:var(--primary)}
.fee-line{margin:-4px 0 8px}