/* ===== Base ===== */
:root{
  --bg:#07090f;
  --card:#0d111b;
  --muted:#9aa3b2;
  --text:#e9eefb;
  --line:rgba(255,255,255,.10);
  --soft:rgba(255,255,255,.06);
  --accent:#ff2d2d;
  --accent2:#ffb000;
  --ok:#22c55e;
  --radius:18px;
  --shadow:0 20px 60px rgba(0,0,0,.45);
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:"Noto Sans SC",system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,"PingFang SC","Microsoft YaHei",sans-serif;
  color:var(--text);
  background: radial-gradient(1200px 700px at 20% -10%, rgba(255,45,45,.25), transparent 60%),
              radial-gradient(900px 600px at 90% 20%, rgba(255,176,0,.18), transparent 55%),
              linear-gradient(180deg,#05060a 0%, #0a0f1c 50%, #05060a 100%);
}

a{color:inherit; text-decoration:none}
.container{width:min(1180px, calc(100% - 40px)); margin:0 auto}
.skip{
  position:absolute; left:-999px; top:-999px;
}
.skip:focus{left:16px; top:16px; background:#fff; color:#000; padding:10px 12px; border-radius:10px; z-index:9999}

/* ===== Topbar ===== */
.topbar{
  position:sticky; top:0; z-index:50;
  backdrop-filter: blur(14px);
  background: rgba(7,9,15,.70);
  border-bottom:1px solid var(--line);
}
.topbar__inner{
  display:flex; align-items:center; gap:18px;
  padding:14px 0;
}
.brand{display:flex; align-items:center; gap:10px; font-weight:800}
.brand__mark{
  width:30px; height:30px; border-radius:10px;
  background: linear-gradient(135deg, rgba(255,45,45,.95), rgba(255,176,0,.90));
  box-shadow: 0 12px 30px rgba(255,45,45,.25);
}
.brand__text{letter-spacing:.5px}
.nav{display:flex; gap:14px; margin-left:8px; color:rgba(233,238,251,.88)}
.nav a{padding:10px 10px; border-radius:12px}
.nav a:hover{background:var(--soft)}
.topbar__cta{margin-left:auto; display:flex; gap:10px}
.menu{display:none; margin-left:auto; width:46px; height:40px; border-radius:12px; border:1px solid var(--line); background:rgba(255,255,255,.04); color:var(--text)}
.menu span{display:block; height:2px; width:18px; background:currentColor; margin:5px auto; opacity:.9}
.mnav{
  border-top:1px solid var(--line);
  padding:12px 20px 18px;
  display:grid; gap:10px;
}
.mnav a{padding:12px 12px; border-radius:12px; background:rgba(255,255,255,.04)}
.mnav__cta{margin-top:6px}

/* ===== Buttons ===== */
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  border-radius:14px;
  padding:11px 14px;
  font-weight:700;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  transition: transform .15s ease, background .15s ease, border-color .15s ease, box-shadow .15s ease;
  cursor:pointer;
}
.btn:hover{transform:translateY(-1px); background:rgba(255,255,255,.06)}
.btn--primary{
  border-color:rgba(255,45,45,.55);
  background: linear-gradient(135deg, rgba(255,45,45,.95), rgba(190,22,22,.95));
  box-shadow: 0 18px 42px rgba(255,45,45,.20);
}
.btn--primary:hover{box-shadow:0 20px 52px rgba(255,45,45,.28)}
.btn--ghost{background:transparent}
.btn--lg{padding:13px 16px; border-radius:16px}
.btn--full{width:100%}

/* ===== Hero ===== */
.hero{position:relative; overflow:hidden}
.hero__bg{
  position:absolute; inset:0;
  background:
    linear-gradient(90deg, rgba(7,9,15,.92) 0%, rgba(7,9,15,.70) 45%, rgba(7,9,15,.95) 100%),
    url("./assets/hero.png");
  background-size: cover;
  background-position: center;
  filter:saturate(1.05) contrast(1.06);
  transform: scale(1.03);
}
.hero__inner{
  position:relative;
  padding:56px 0 44px;
  display:grid;
  grid-template-columns: 1.15fr .85fr;
  gap:26px;
  align-items:start;
}

.pill{
  display:inline-flex; align-items:center;
  gap:10px;
  padding:10px 12px;
  border-radius:999px;
  background: rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.10);
  color:rgba(233,238,251,.92);
  width:fit-content;
}
.h1{margin:16px 0 10px; font-size:52px; line-height:1.05; letter-spacing:.5px}
.h1__sub{display:block; font-size:24px; font-weight:700; color:rgba(233,238,251,.84); margin-top:10px}
.lead{color:rgba(233,238,251,.78); font-size:16px; line-height:1.8; margin:0 0 18px; max-width:56ch}

.hero__metrics{
  display:flex; gap:12px; flex-wrap:wrap;
  margin:18px 0 18px;
}
.metric{
  flex:1 1 170px;
  padding:14px 14px;
  border-radius:16px;
  background: rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.10);
}
.metric__k{font-size:18px; font-weight:800}
.metric__v{color:rgba(233,238,251,.75); margin-top:4px}

.hero__actions{display:flex; gap:12px; flex-wrap:wrap; margin-top:10px}
.trust{display:flex; gap:14px; flex-wrap:wrap; margin-top:18px; color:rgba(233,238,251,.75); font-size:13px}
.trust__item{display:flex; align-items:center; gap:10px}
.dot{width:10px; height:10px; border-radius:999px}
.dot--green{background:rgba(34,197,94,.9); box-shadow:0 10px 26px rgba(34,197,94,.22)}
.dot--amber{background:rgba(255,176,0,.95); box-shadow:0 10px 26px rgba(255,176,0,.18)}

/* ===== Card/Form ===== */
.card{
  border-radius: var(--radius);
  background: rgba(13,17,27,.82);
  border: 1px solid rgba(255,255,255,.10);
  box-shadow: var(--shadow);
  overflow:hidden;
}
.card__hd{
  padding:18px 18px 14px;
  display:flex; align-items:flex-start; justify-content:space-between; gap:10px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.card__title{font-size:18px; font-weight:800}
.card__sub{color:rgba(233,238,251,.72); font-size:13px; margin-top:4px}
.badge{
  padding:8px 10px;
  border-radius:12px;
  font-weight:800;
  background: rgba(255,45,45,.16);
  border:1px solid rgba(255,45,45,.35);
  color:rgba(255,220,220,.96);
}
.form{padding:16px 18px 18px; display:grid; gap:12px}
.field{display:grid; gap:8px}
.field__label{font-size:13px; color:rgba(233,238,251,.76)}
input,select,textarea{
  width:100%;
  padding:12px 12px;
  border-radius:14px;
  border:1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.04);
  color:var(--text);
  outline:none;
}
textarea{resize:vertical; min-height:92px}
input:focus,select:focus,textarea:focus{border-color: rgba(255,45,45,.55); box-shadow:0 0 0 4px rgba(255,45,45,.12)}
.fineprint{margin:0; color:rgba(233,238,251,.58); font-size:12px; line-height:1.55}

.card__foot{
  border-top:1px solid rgba(255,255,255,.08);
  padding:16px 18px 18px;
  display:grid; gap:12px;
}
.ok{display:flex; gap:12px; align-items:center}
.ok__icon{
  width:34px; height:34px; border-radius:12px;
  display:grid; place-items:center;
  background: rgba(34,197,94,.18);
  border:1px solid rgba(34,197,94,.35);
  color: rgba(160,255,199,.95);
  font-weight:900;
}
.ok__title{font-weight:800}
.ok__sub{color:rgba(233,238,251,.70); font-size:13px; margin-top:2px}
.summary{
  width:100%;
  border-radius:14px;
  padding:12px 12px;
  border:1px solid rgba(255,255,255,.12);
  background: rgba(0,0,0,.22);
  color:rgba(233,238,251,.88);
  min-height:120px;
}
.row{display:grid; grid-template-columns:1fr 1fr; gap:10px}

/* ===== Sections ===== */
.section{padding:56px 0}
.section__hd{display:flex; align-items:flex-end; justify-content:space-between; gap:16px; margin-bottom:18px}
.h2{margin:0; font-size:30px; letter-spacing:.3px}
.section__sub{margin:0; color:rgba(233,238,251,.72); line-height:1.7; max-width:56ch}

.grid3{display:grid; grid-template-columns:repeat(3,1fr); gap:14px; margin-top:18px}
.feature{
  padding:18px 18px 16px;
  border-radius: var(--radius);
  background: rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.10);
}
.feature__icon{
  width:44px; height:44px; border-radius:16px;
  display:grid; place-items:center;
  background: rgba(255,45,45,.12);
  border:1px solid rgba(255,45,45,.26);
  color: rgba(255,220,220,.95);
  margin-bottom:10px;
}
.feature__icon svg{width:22px; height:22px}
.feature h3{margin:0 0 8px; font-size:18px}
.feature p{margin:0 0 12px; color:rgba(233,238,251,.70); line-height:1.75}
.feature ul{margin:0; padding-left:18px; color:rgba(233,238,251,.74); line-height:1.8}
.feature li{margin:4px 0}

.banner{
  margin-top:18px;
  padding:18px 18px;
  border-radius: var(--radius);
  border:1px solid rgba(255,255,255,.12);
  background: linear-gradient(135deg, rgba(255,45,45,.18), rgba(255,176,0,.10));
  display:flex; align-items:center; justify-content:space-between; gap:14px;
}
.banner__title{font-weight:900; font-size:18px}
.banner__sub{color:rgba(233,238,251,.78); margin-top:4px}

.section--dark{
  background: linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,.01));
  border-top:1px solid rgba(255,255,255,.08);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.steps{display:grid; gap:10px; margin-top:18px}
.step{
  display:grid; grid-template-columns:72px 1fr;
  gap:12px;
  padding:16px 16px;
  border-radius: var(--radius);
  background: rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.10);
}
.step__n{
  width:56px; height:56px; border-radius:18px;
  display:grid; place-items:center;
  font-weight:900;
  background: rgba(255,45,45,.14);
  border:1px solid rgba(255,45,45,.30);
}
.step h3{margin:0 0 6px}
.step p{margin:0; color:rgba(233,238,251,.70); line-height:1.75}
.callout{
  margin-top:16px;
  padding:18px 18px;
  border-radius: var(--radius);
  border:1px solid rgba(255,255,255,.12);
  background: rgba(0,0,0,.18);
  display:flex; align-items:center; justify-content:space-between; gap:14px;
}
.callout__title{font-weight:900; font-size:18px}
.callout__sub{color:rgba(233,238,251,.74); margin-top:4px}

.cases{display:grid; grid-template-columns:repeat(3,1fr); gap:14px; margin-top:18px}
.case{
  padding:18px 18px 16px;
  border-radius: var(--radius);
  border:1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.04);
  position:relative;
  overflow:hidden;
}
.case:before{
  content:"";
  position:absolute; inset:-40px -40px auto auto;
  width:120px; height:120px; border-radius:999px;
  background: radial-gradient(circle at 30% 30%, rgba(255,45,45,.28), transparent 60%);
  filter: blur(2px);
}
.case__tag{
  width:fit-content;
  padding:8px 10px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.12);
  background: rgba(0,0,0,.20);
  color: rgba(233,238,251,.78);
  font-size:12px;
}
.case h3{margin:12px 0 8px; font-size:18px}
.case p{margin:0 0 12px; color:rgba(233,238,251,.70); line-height:1.75}
.case__meta{display:flex; gap:12px; flex-wrap:wrap; color:rgba(233,238,251,.68); font-size:12px}

.ctaStrip{
  margin-top:18px;
  padding:18px 18px;
  border-radius: var(--radius);
  border:1px solid rgba(255,255,255,.12);
  background: linear-gradient(135deg, rgba(255,45,45,.16), rgba(255,255,255,.02));
  display:flex; align-items:center; justify-content:space-between; gap:14px;
}
.ctaStrip__title{font-weight:900; font-size:18px}
.ctaStrip__sub{color:rgba(233,238,251,.78); margin-top:4px}

.faq{display:grid; gap:10px; margin-top:18px}
details{
  border-radius: var(--radius);
  border:1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.04);
  padding:14px 16px;
}
summary{cursor:pointer; font-weight:800}
.faq__a{color:rgba(233,238,251,.72); line-height:1.75; margin-top:10px}

.note{
  margin-top:16px;
  padding:16px 16px;
  border-radius: var(--radius);
  border:1px dashed rgba(255,255,255,.20);
  background: rgba(0,0,0,.12);
}
.note__title{font-weight:900}
.note__sub{color:rgba(233,238,251,.70); margin-top:6px; line-height:1.7}

/* ===== Footer ===== */
.footer{
  border-top:1px solid rgba(255,255,255,.08);
  padding:28px 0;
  background: rgba(0,0,0,.18);
}
.footer__inner{display:flex; align-items:center; justify-content:space-between; gap:14px; flex-wrap:wrap}
.footer__left p{margin:10px 0 0; color:rgba(233,238,251,.62)}
.brand--footer .brand__mark{width:28px; height:28px; border-radius:10px}
.footer__right{display:flex; gap:12px; flex-wrap:wrap; color:rgba(233,238,251,.78)}
.footer__right a{padding:8px 10px; border-radius:12px}
.footer__right a:hover{background:rgba(255,255,255,.05)}

/* ===== Support FAB (bottom: 88px) ===== */
.supportDock{
  position:fixed;
  right:18px;
  bottom:88px;
  z-index:80;
  display:flex;
  flex-direction:column;
  gap:10px;
}

.supportFab{
  position:relative;
  display:flex; align-items:center; gap:10px;
  padding:12px 14px;
  border-radius:999px;
  background: rgba(13,17,27,.92);
  border:1px solid rgba(255,255,255,.14);
  box-shadow: 0 20px 60px rgba(0,0,0,.45);
  cursor:pointer;
}
.supportFab__icon{
  width:36px; height:36px; border-radius:999px;
  display:grid; place-items:center;
  background: linear-gradient(135deg, rgba(255,45,45,.95), rgba(255,176,0,.88));
  color:#111;
}
.supportFab__icon svg{width:18px; height:18px}
.supportFab__text{font-weight:900}
.supportFab:hover{transform:translateY(-1px)}
.supportFab:active{transform:translateY(0)}

.supportFab__qq{
  font-weight:1000;
  letter-spacing:.5px;
  font-size:14px;
  line-height:1;
}

.supportFab--qq .supportFab__icon{
  background: linear-gradient(135deg, rgba(0,196,255,.95), rgba(0,255,170,.86));
  color:#0b1220;
}
.supportFab--tg .supportFab__icon{
  background: linear-gradient(135deg, rgba(255,45,45,.95), rgba(255,176,0,.88));
  color:#111;
}

/* ===== Modal ===== */
.modal{
  position:fixed;
  inset:0;
  z-index:120;
  display:none;
}
.modal.is-open{display:block;}
.modal__backdrop{
  position:absolute; inset:0;
  background: rgba(0,0,0,.62);
  backdrop-filter: blur(8px);
}
.modal__panel{
  position:relative;
  width:min(520px, calc(100% - 28px));
  margin: 8vh auto 0;
  border-radius:18px;
  background: rgba(14,18,28,.92);
  border:1px solid rgba(255,255,255,.14);
  box-shadow: 0 40px 120px rgba(0,0,0,.6);
  overflow:hidden;
}
.modal__head{
  display:flex; align-items:center; justify-content:space-between;
  padding:14px 16px;
  border-bottom:1px solid rgba(255,255,255,.10);
}
.modal__title{font-weight:900; letter-spacing:.4px}
.iconBtn{
  width:36px; height:36px;
  display:grid; place-items:center;
  border-radius:10px;
  border:1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.06);
  color:rgba(255,255,255,.92);
  cursor:pointer;
}
.iconBtn:hover{background: rgba(255,255,255,.10);}
.modal__body{padding:16px;}
.qqBox{
  display:grid;
  gap:12px;
}
.qqBox__row{
  display:flex; align-items:flex-end; justify-content:space-between;
  gap:10px;
}
.qqBox__label{color:rgba(255,255,255,.70); font-size:13px}
.qqBox__value{
  font-weight:1000;
  font-size:20px;
  letter-spacing:1px;
}
.qqBox__qr{
  display:grid;
  place-items:center;
  padding:14px;
  border-radius:16px;
  background: rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.10);
}
.qqBox__qr img{
  width:260px; height:260px;
  object-fit:contain;
  border-radius:12px;
  background:#fff;
}
.qqBox__actions{display:grid; grid-template-columns:1fr; gap:10px}

/* ===== Responsive ===== */
@media (max-width: 980px){
  .hero__inner{grid-template-columns:1fr; padding:40px 0 34px}
  .h1{font-size:42px}
  .topbar__cta{display:none}
  .nav{display:none}
  .menu{display:inline-flex; align-items:center; justify-content:center}
  .grid3{grid-template-columns:1fr; }
  .cases{grid-template-columns:1fr}
  .section__hd{flex-direction:column; align-items:flex-start}
  .row{grid-template-columns:1fr}
  .banner,.callout,.ctaStrip{flex-direction:column; align-items:flex-start}
}