:root{
  --bg:#07090f;
  --bg2:#0b111e;
  --ink:#0e1526;
  --gold:#e8c473;
  --gold-bright:#f7dfa8;
  --gold-deep:#b98a3e;
  --jade:#5fe0c8;
  --violet:#a78bfa;
  --text:#ece7da;
  --muted:#a3a8b5;
  --line:rgba(232,196,115,.18);
  --card:rgba(255,255,255,.045);
  --card-hover:rgba(255,255,255,.08);
  --radius:14px;
  --serif:"Noto Serif SC",serif;
  --sans:"Noto Sans SC",system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--sans);
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul{list-style:none}
button{font-family:inherit;cursor:pointer}
::selection{background:rgba(232,196,115,.35)}

/* ---------- utilities ---------- */
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}
.section{padding:96px 0;position:relative}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.35em;color:var(--jade);
  text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before,.eyebrow::after{content:"";width:26px;height:1px;background:linear-gradient(90deg,transparent,var(--jade))}
.eyebrow::after{background:linear-gradient(90deg,var(--jade),transparent)}
h2.title{
  font-family:var(--serif);font-weight:900;
  font-size:clamp(28px,4.2vw,44px);line-height:1.25;
  letter-spacing:.06em;
}
h2.title em{font-style:normal;color:var(--gold);text-shadow:0 0 24px rgba(232,196,115,.35)}
.section-head{text-align:center;margin-bottom:56px}
.section-sub{color:var(--muted);max-width:640px;margin:14px auto 0;font-size:15px}
.divider-cloud{
  width:160px;height:14px;margin:18px auto 0;opacity:.75;
  background:radial-gradient(closest-side at 50% 50%,rgba(232,196,115,.6),transparent 72%);
}

/* reveal on scroll */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  *{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
}

/* ---------- navbar ---------- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  transition:background .3s ease,box-shadow .3s ease,border-color .3s ease;
  border-bottom:1px solid transparent;
}
.nav.scrolled{
  background:rgba(7,9,15,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.nav-inner{
  max-width:1180px;margin:0 auto;padding:0 24px;
  height:68px;display:flex;align-items:center;gap:28px;
}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand img{width:42px;height:42px;border-radius:10px;box-shadow:0 0 0 1px var(--line),0 4px 14px rgba(0,0,0,.5)}
.brand-name{font-family:var(--serif);font-weight:900;font-size:20px;letter-spacing:.14em;color:var(--gold-bright)}
.brand-tag{
  font-size:11px;color:var(--jade);border:1px solid rgba(95,224,200,.4);
  border-radius:999px;padding:1px 8px;letter-spacing:.1em;
}
.nav-links{display:flex;gap:6px;margin-left:auto}
.nav-links a{
  padding:8px 14px;border-radius:8px;font-size:15px;color:var(--muted);
  transition:color .2s ease,background .2s ease;
}
.nav-links a:hover{color:var(--gold-bright);background:rgba(232,196,115,.08)}
.nav-cta{
  margin-left:8px;flex-shrink:0;
  display:inline-flex;align-items:center;gap:6px;
  background:linear-gradient(135deg,#d9ab5c,#f3d795 55%,#c8963f);
  color:#241705;font-weight:700;font-size:14px;
  padding:9px 20px;border-radius:999px;letter-spacing:.05em;
  box-shadow:0 4px 18px rgba(217,171,92,.35);
  transition:box-shadow .2s ease,filter .2s ease;
}
.nav-cta:hover{box-shadow:0 6px 26px rgba(217,171,92,.55);filter:brightness(1.06)}
.burger{
  display:none;margin-left:auto;width:42px;height:42px;border-radius:10px;
  background:transparent;border:1px solid var(--line);color:var(--text);
  align-items:center;justify-content:center;
}
.mobile-menu{
  display:none;position:fixed;inset:68px 0 auto 0;z-index:99;
  background:rgba(7,9,15,.97);backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);padding:10px 24px 22px;
}
.mobile-menu.open{display:block}
.mobile-menu a{
  display:block;padding:14px 6px;font-size:16px;color:var(--text);
  border-bottom:1px dashed rgba(255,255,255,.07);
}
.mobile-menu a:last-child{border-bottom:none}

/* ---------- hero ---------- */
.hero{
  position:relative;min-height:100svh;
  display:flex;align-items:flex-end;
  padding:140px 0 88px;
  isolation:isolate;
}
.hero-bg{
  position:absolute;inset:0;z-index:-2;
  background:url("images/banner/banner4a2b840cd896184e4c5020756d0e16421786675231.jpg") center 22%/cover no-repeat #0a0f16;
}
.hero::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:
    linear-gradient(180deg,rgba(7,9,15,.55) 0%,rgba(7,9,15,.15) 34%,rgba(7,9,15,.72) 72%,var(--bg) 100%),
    linear-gradient(90deg,rgba(7,9,15,.62) 0%,rgba(7,9,15,.05) 55%);
}
.hero-inner{max-width:1180px;margin:0 auto;padding:0 24px;width:100%}
.hero-badge{
  display:inline-flex;align-items:center;gap:10px;
  background:rgba(14,21,38,.66);border:1px solid var(--line);
  backdrop-filter:blur(8px);
  border-radius:999px;padding:7px 16px;font-size:13px;letter-spacing:.12em;
  color:var(--gold-bright);margin-bottom:22px;
}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--jade);box-shadow:0 0 10px var(--jade);animation:pulse 1.8s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.8)}}
h1.hero-title{
  font-family:var(--serif);font-weight:900;
  font-size:clamp(44px,8.5vw,96px);
  line-height:1.1;letter-spacing:.08em;
  text-shadow:0 6px 40px rgba(0,0,0,.65);
}
h1.hero-title .gold{
  background:linear-gradient(180deg,#fdf3d3 12%,var(--gold) 55%,#c08f42);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  filter:drop-shadow(0 4px 22px rgba(232,196,115,.3));
}
.hero-slogan{
  margin-top:18px;font-size:clamp(16px,2.4vw,21px);
  color:#dfe6ef;letter-spacing:.08em;max-width:560px;
  text-shadow:0 2px 12px rgba(0,0,0,.7);
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.hero-tags span{
  font-size:13px;color:#cfd8e4;background:rgba(14,21,38,.6);
  border:1px solid rgba(255,255,255,.14);border-radius:8px;padding:5px 13px;
  backdrop-filter:blur(6px);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-top:34px;align-items:center}
.btn{
  display:inline-flex;align-items:center;gap:10px;
  border-radius:999px;font-weight:700;letter-spacing:.06em;
  transition:box-shadow .2s ease,filter .2s ease,background .2s ease,border-color .2s ease;
}
.btn-lg{padding:16px 38px;font-size:17px}
.btn-gold{
  background:linear-gradient(135deg,#d9ab5c,#f7dfa8 52%,#c8963f);
  color:#241705;box-shadow:0 8px 30px rgba(217,171,92,.4);
}
.btn-gold:hover{box-shadow:0 10px 40px rgba(232,196,115,.6);filter:brightness(1.07)}
.btn-ghost{
  background:rgba(14,21,38,.55);border:1px solid rgba(255,255,255,.28);
  color:#f2f4f8;backdrop-filter:blur(6px);
}
.btn-ghost:hover{border-color:var(--gold);color:var(--gold-bright);background:rgba(14,21,38,.75)}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:12px 36px;margin-top:36px;
  font-size:14px;color:#b8c1cf;
}
.hero-meta b{color:var(--gold-bright);font-family:var(--serif);font-size:17px;font-weight:700}
.hero-meta .item{display:flex;align-items:center;gap:8px}
.hero-meta svg{color:var(--jade)}

/* countdown */
.countdown{
  margin-top:44px;display:inline-flex;align-items:center;gap:14px;
  background:rgba(11,15,26,.72);border:1px solid var(--line);
  border-radius:16px;padding:16px 22px;backdrop-filter:blur(10px);
  box-shadow:0 10px 40px rgba(0,0,0,.45);
}
.cd-label{font-size:13px;letter-spacing:.2em;color:var(--muted);writing-mode:horizontal-tb;margin-right:6px}
.cd-cells{display:flex;align-items:center;gap:6px}
.cd-cell{
  min-width:56px;text-align:center;
  background:linear-gradient(180deg,rgba(232,196,115,.14),rgba(232,196,115,.04));
  border:1px solid var(--line);border-radius:10px;padding:6px 8px;
}
.cd-num{
  display:block;font-family:var(--serif);font-weight:900;font-size:26px;
  color:var(--gold-bright);line-height:1.2;font-variant-numeric:tabular-nums;
}
.cd-unit{font-size:11px;color:var(--muted);letter-spacing:.2em}
.cd-sep{color:var(--gold);font-size:20px;padding-bottom:14px}

/* ---------- stats strip ---------- */
.stats{
  margin-top:-2px;
  background:linear-gradient(180deg,var(--bg) 0%,var(--bg2) 100%);
  border-top:1px solid var(--line);border-bottom:1px solid rgba(255,255,255,.05);
}
.stats-inner{
  max-width:1180px;margin:0 auto;padding:34px 24px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
}
.stat{text-align:center}
.stat b{
  display:block;font-family:var(--serif);font-weight:900;
  font-size:clamp(24px,3vw,34px);color:var(--gold-bright);
}
.stat b i{font-style:normal;font-size:.6em;margin-left:2px}
.stat span{font-size:13px;color:var(--muted);letter-spacing:.14em}

/* ---------- features ---------- */
.features{background:var(--bg)}
.feat-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:22px;
}
.feat{
  position:relative;overflow:hidden;
  background:var(--card);border:1px solid rgba(255,255,255,.07);
  border-radius:var(--radius);padding:30px 26px;
  transition:background .25s ease,border-color .25s ease,transform .25s ease;
  cursor:default;
}
.feat:hover{background:var(--card-hover);border-color:var(--line);transform:translateY(-4px)}
.feat-ico{
  width:52px;height:52px;border-radius:13px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(232,196,115,.18),rgba(95,224,200,.12));
  border:1px solid var(--line);color:var(--gold-bright);
  margin-bottom:18px;
}
.feat h3{font-family:var(--serif);font-size:19px;font-weight:700;letter-spacing:.06em;margin-bottom:8px;color:#f5efdf}
.feat p{font-size:14px;color:var(--muted)}
.feat .glow{
  position:absolute;top:-40px;right:-40px;width:120px;height:120px;border-radius:50%;
  background:radial-gradient(closest-side,rgba(232,196,115,.14),transparent);
  pointer-events:none;
}

/* ---------- screenshots gallery ---------- */
.gallery-section{background:linear-gradient(180deg,var(--bg2) 0%,var(--bg) 100%)}
.gallery{
  display:grid;grid-template-columns:repeat(3,1fr);gap:16px;
}
.shot{
  position:relative;border-radius:var(--radius);overflow:hidden;
  border:1px solid rgba(255,255,255,.08);
  cursor:zoom-in;background:#0a0e18;
  transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.shot:hover{border-color:var(--line);transform:translateY(-4px);box-shadow:0 14px 40px rgba(0,0,0,.5)}
.shot img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .5s ease}
.shot:hover img{transform:scale(1.05)}
.shot::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 62%,rgba(7,9,15,.55));
  pointer-events:none;
}

/* lightbox */
.lightbox{
  position:fixed;inset:0;z-index:200;display:none;
  background:rgba(4,6,10,.92);backdrop-filter:blur(8px);
  align-items:center;justify-content:center;padding:24px;
}
.lightbox.open{display:flex}
.lightbox img{max-width:min(1080px,94vw);max-height:86vh;border-radius:12px;box-shadow:0 20px 80px rgba(0,0,0,.8)}
.lb-close{
  position:absolute;top:20px;right:22px;width:44px;height:44px;border-radius:50%;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.2);
  color:#fff;display:flex;align-items:center;justify-content:center;
  transition:background .2s ease;
}
.lb-close:hover{background:rgba(255,255,255,.18)}

/* ---------- art (fivepic) ---------- */
.art-section{background:var(--bg)}
.art-grid{
  display:grid;grid-template-columns:repeat(5,1fr);gap:14px;
}
.art{
  position:relative;border-radius:12px;overflow:hidden;border:1px solid rgba(255,255,255,.08);
  cursor:zoom-in;background:#0a0e18;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.art:hover{transform:translateY(-5px);box-shadow:0 16px 44px rgba(0,0,0,.55);border-color:var(--line)}
.art img{width:100%;aspect-ratio:9/16;object-fit:cover}
.art figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:26px 12px 10px;
  font-family:var(--serif);font-size:14px;letter-spacing:.2em;text-align:center;color:var(--gold-bright);
  background:linear-gradient(180deg,transparent,rgba(7,9,15,.82));
}

/* ---------- benefits ---------- */
.benefits-section{
  background:
    radial-gradient(1000px 420px at 50% 0%,rgba(167,139,250,.1),transparent 65%),
    linear-gradient(180deg,var(--bg) 0%,var(--bg2) 100%);
}
.benefit-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.benefit{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--card);border:1px solid rgba(255,255,255,.07);
  border-radius:var(--radius);padding:20px 22px;
  transition:background .25s ease,border-color .25s ease;
}
.benefit:hover{background:var(--card-hover);border-color:var(--line)}
.benefit-ico{
  flex-shrink:0;width:42px;height:42px;border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(232,196,115,.2),rgba(217,171,92,.06));
  border:1px solid var(--line);color:var(--gold-bright);
}
.benefit h3{font-size:16px;font-weight:700;color:#f5efdf;letter-spacing:.04em;margin-bottom:3px}
.benefit h3 .tag{
  font-size:11px;font-weight:500;color:var(--jade);
  border:1px solid rgba(95,224,200,.4);border-radius:999px;
  padding:1px 8px;margin-left:8px;vertical-align:2px;letter-spacing:.06em;
}
.benefit p{font-size:13.5px;color:var(--muted)}
.benefit-note{
  margin-top:26px;text-align:center;font-size:13px;color:var(--muted);
  background:rgba(95,224,200,.05);border:1px dashed rgba(95,224,200,.3);
  border-radius:10px;padding:12px 18px;
}

/* ---------- video ---------- */
.video-section{background:var(--bg)}
.video-frame{
  position:relative;max-width:900px;margin:0 auto;
  border-radius:18px;overflow:hidden;
  border:1px solid var(--line);
  box-shadow:0 24px 80px rgba(0,0,0,.6),0 0 0 6px rgba(232,196,115,.05);
  background:#000;
}
.video-frame video{width:100%;display:block;aspect-ratio:16/9;object-fit:cover}

/* ---------- launch / cta ---------- */
.cta-section{
  text-align:center;
  background:
    radial-gradient(800px 380px at 50% 110%,rgba(232,196,115,.12),transparent 70%),
    linear-gradient(180deg,var(--bg) 0%,#0d1424 100%);
}
.cta-title{font-family:var(--serif);font-weight:900;font-size:clamp(30px,5vw,52px);letter-spacing:.1em}
.cta-sub{color:var(--muted);margin:16px 0 34px;font-size:15px}
.cta-actions{display:flex;justify-content:center;flex-wrap:wrap;gap:16px}

/* ---------- footer ---------- */
footer{
  border-top:1px solid var(--line);
  background:#05070c;padding:40px 0 34px;
}
.foot-inner{
  max-width:1180px;margin:0 auto;padding:0 24px;
  display:flex;flex-wrap:wrap;gap:20px;align-items:center;justify-content:space-between;
}
.foot-brand{display:flex;align-items:center;gap:12px}
.foot-brand img{width:36px;height:36px;border-radius:9px}
.foot-brand b{font-family:var(--serif);letter-spacing:.12em;color:var(--gold-bright);font-size:16px}
.foot-links{display:flex;gap:22px;font-size:13px;color:var(--muted)}
.foot-links a:hover{color:var(--gold-bright)}
.foot-copy{width:100%;text-align:center;font-size:12px;color:#6b7280;margin-top:18px;line-height:1.9}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .feat-grid{grid-template-columns:repeat(2,1fr)}
  .art-grid{grid-template-columns:repeat(5,1fr);gap:10px}
}
@media (max-width:820px){
  .nav-links,.nav .nav-cta{display:none}
  .burger{display:flex}
  .section{padding:68px 0}
  .stats-inner{grid-template-columns:repeat(2,1fr);gap:26px 10px;padding:28px 20px}
  .gallery{grid-template-columns:repeat(2,1fr)}
  .art-grid{grid-template-columns:repeat(3,1fr)}
  .art:nth-child(n+4){display:none}
  .benefit-grid{grid-template-columns:1fr}
  .hero{padding:120px 0 70px}
  .countdown{width:100%;justify-content:center}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn,.hero-actions .qr-wrap{width:100%}
  .hero-actions .btn{justify-content:center}
  .cta-actions{flex-direction:column;align-items:stretch}
  .cta-actions .btn{width:100%;justify-content:center}
}
@media (max-width:560px){
  .feat-grid{grid-template-columns:1fr}
  .gallery{grid-template-columns:1fr}
  .shot img{aspect-ratio:16/10}
  .cd-cell{min-width:46px}
  .cd-num{font-size:22px}
  .hero-meta{gap:10px 22px}
  .wrap{padding:0 18px}
}

/* ---------- back to top ---------- */
.back-top{
  position:fixed;right:24px;bottom:24px;z-index:150;
  width:48px;height:48px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#d9ab5c,#f3d795 55%,#c8963f);
  color:#241705;border:none;
  box-shadow:0 6px 24px rgba(217,171,92,.4);
  opacity:0;visibility:hidden;transform:translateY(14px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s,box-shadow .2s ease;
}
.back-top.show{opacity:1;visibility:visible;transform:none}
.back-top:hover{box-shadow:0 8px 30px rgba(232,196,115,.6)}
@media (max-width:560px){
  .back-top{right:16px;bottom:16px;width:44px;height:44px}
}

/* ---------- qrcode ---------- */
.qr-wrap{position:relative;display:inline-flex}
.qr-pop{
  position:absolute;bottom:calc(100% + 18px);left:50%;
  transform:translateX(-50%) translateY(8px);
  background:#fff;padding:12px;border-radius:14px;
  box-shadow:0 16px 50px rgba(0,0,0,.55);
  opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .25s ease,transform .25s ease,visibility .25s;
  z-index:70;line-height:0;width: 160px;
}
.qr-pop::after{
  content:"";position:absolute;top:100%;left:50%;transform:translateX(-50%);
  border:8px solid transparent;border-top-color:#fff;
}
.qr-wrap:hover .qr-pop{opacity:1;visibility:visible;transform:translateX(-50%)}
.qr-pop canvas,.qr-pop img{display:block;border-radius:6px}
.cta-qr-box{margin-top:44px;display:flex;flex-direction:column;align-items:center;gap:12px}
.cta-qr{
  background:#fff;padding:14px;border-radius:16px;display:inline-block;line-height:0;
  box-shadow:0 18px 60px rgba(0,0,0,.5),0 0 0 6px rgba(232,196,115,.08);
}
.cta-qr canvas,.cta-qr img{display:block;border-radius:8px}
.cta-qr-box p{color:var(--muted);font-size:14px;letter-spacing:.15em}