*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --ink:#08060a;
  --coal:#121018;
  --plum:#1e1428;
  --ember:#ff6b1a;
  --flame:#ff3d6e;
  --gold:#e8b84a;
  --mist:#c8b8d4;
  --snow:#f5eef8;
  --line:rgba(255,107,26,.18);
  --glow:rgba(255,61,110,.35);
  --radius:14px;
  --nav-h:58px;
  --pin-h:0px;
  --font-sans:"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  --font-display:Georgia,"Songti SC","SimSun",serif;
}
html{scroll-behavior:smooth;font-size:16px}
body{
  font-family:var(--font-sans);
  background:var(--ink);
  color:var(--snow);
  line-height:1.78;
  min-height:100vh;
  overflow-x:hidden;
}
a{color:var(--ember);text-decoration:none;transition:color .2s}
a:hover{color:var(--flame)}
img{max-width:100%;height:auto;display:block}
.shell{max-width:1080px;margin:0 auto;padding:0 18px}

/* header */
.site-head{
  position:sticky;top:0;z-index:900;
  background:rgba(8,6,10,.92);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.head-row{
  display:flex;align-items:center;justify-content:space-between;
  height:var(--nav-h);gap:12px;
}
.brand{
  display:flex;align-items:center;gap:10px;
  color:var(--snow);font-weight:700;font-size:1.05rem;
}
.brand img{width:38px;height:38px;border-radius:10px}
.menu-btn{
  display:none;width:42px;height:42px;border:0;background:transparent;cursor:pointer;
}
.menu-btn span{
  display:block;width:22px;height:2px;background:var(--snow);margin:5px auto;
  transition:transform .25s,opacity .25s;
}
.menu-btn.on span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-btn.on span:nth-child(2){opacity:0}
.menu-btn.on span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.head-nav{display:flex;gap:6px;list-style:none;flex-wrap:wrap}
.head-nav a{
  display:block;padding:8px 12px;border-radius:8px;
  color:var(--mist);font-size:.88rem;
}
.head-nav a:hover,.head-nav a.active{
  color:var(--snow);background:rgba(255,107,26,.12);
}
.drawer{
  display:none;position:absolute;left:0;right:0;top:var(--nav-h);
  background:var(--coal);border-bottom:1px solid var(--line);padding:12px 0;
}
.drawer.show{display:block}
.drawer ul{list-style:none}
.drawer a{
  display:block;padding:12px 22px;color:var(--mist);font-size:.95rem;
}
.drawer a:hover,.drawer a.active{color:var(--ember);background:rgba(255,61,110,.08)}

/* sticky ads */
.ad-pin{
  position:fixed;left:0;right:0;top:var(--nav-h);z-index:850;
  background:rgba(12,10,16,.96);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transform:translateY(-110%);opacity:0;pointer-events:none;
  transition:transform .3s,opacity .3s;
}
.ad-pin.show{transform:translateY(0);opacity:1;pointer-events:auto}
body.pin-on{--pin-h:88px}
.ad-row{
  display:flex;flex-wrap:wrap;justify-content:center;align-items:flex-start;
  gap:8px 6px;padding:10px 0;
}
.ad-row>div{
  display:flex;flex-direction:column;align-items:center;
  width:calc(12.5% - 6px);min-width:70px;max-width:80px;
}
.ad-row img{
  width:58px;height:58px;object-fit:cover;border-radius:16px;
  box-shadow:0 4px 16px rgba(255,61,110,.2);
  transition:transform .2s,box-shadow .2s;
}
.ad-row a:hover img{transform:translateY(-3px) scale(1.05);box-shadow:0 8px 22px var(--glow)}
.ad-row .caption{
  font-size:10px;color:var(--mist);text-align:center;margin-top:4px;
  max-width:72px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.ad-top{padding:14px 0 6px;background:linear-gradient(180deg,var(--plum),transparent)}

/* hero */
.hero{
  position:relative;padding:48px 0 56px;overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(ellipse 60% 50% at 80% 20%,rgba(255,61,110,.22),transparent),
    radial-gradient(ellipse 50% 40% at 10% 80%,rgba(255,107,26,.18),transparent);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:1}
.hero-badge{
  display:inline-block;padding:5px 14px;border-radius:20px;
  background:rgba(255,107,26,.15);border:1px solid var(--line);
  color:var(--ember);font-size:.82rem;letter-spacing:.06em;margin-bottom:18px;
}
.hero h1{
  font-family:var(--font-display);
  font-size:clamp(1.65rem,5vw,2.35rem);
  line-height:1.35;margin-bottom:16px;
  background:linear-gradient(135deg,var(--snow),var(--ember));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;
}
.hero-lead{font-size:1.02rem;color:var(--mist);max-width:720px;margin-bottom:22px}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;list-style:none}
.tag-row li{
  padding:5px 12px;border-radius:6px;font-size:.78rem;
  background:rgba(30,20,40,.8);border:1px solid var(--line);color:var(--mist);
}

/* sections */
.section{padding:44px 0}
.section-alt{background:linear-gradient(180deg,rgba(30,20,40,.45),transparent)}
.sec-title{
  font-family:var(--font-display);
  font-size:clamp(1.3rem,3.5vw,1.75rem);
  margin-bottom:8px;color:var(--snow);
}
.sec-sub{color:var(--mist);font-size:.92rem;margin-bottom:28px}

/* split layout 3:7 */
.split{
  display:grid;grid-template-columns:1fr;gap:28px;align-items:start;
}
@media(min-width:768px){
  .split{grid-template-columns:3fr 7fr}
  .split.flip .split-media{order:2}
  .split.flip .split-text{order:1}
}
.split-media{
  border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--line);
  box-shadow:0 12px 40px rgba(0,0,0,.45);
}
.split-media img{width:100%;aspect-ratio:9/16;object-fit:cover;object-position:top}
.split-text p{margin-bottom:14px;color:var(--mist);font-size:.95rem}
.split-text h3{
  font-size:1.1rem;color:var(--ember);margin:20px 0 10px;
  padding-left:12px;border-left:3px solid var(--flame);
}

/* feature grid */
.feat-grid{
  display:grid;grid-template-columns:1fr;gap:16px;
}
@media(min-width:600px){.feat-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:900px){.feat-grid{grid-template-columns:repeat(3,1fr)}}
.feat-card{
  padding:22px 20px;border-radius:var(--radius);
  background:linear-gradient(145deg,rgba(30,20,40,.7),rgba(18,16,24,.9));
  border:1px solid var(--line);
}
.feat-card h3{font-size:1rem;color:var(--snow);margin-bottom:8px}
.feat-card p{font-size:.88rem;color:var(--mist);line-height:1.65}

/* prose block */
.prose-block{
  padding:28px 24px;border-radius:var(--radius);
  background:rgba(18,16,24,.6);border:1px solid var(--line);
}
.prose-block p{margin-bottom:14px;color:var(--mist);font-size:.93rem}
.prose-block h3{color:var(--ember);font-size:1.05rem;margin:18px 0 10px}

/* cta band */
.cta-band{
  text-align:center;padding:36px 24px;border-radius:var(--radius);
  background:linear-gradient(135deg,rgba(255,107,26,.12),rgba(255,61,110,.1));
  border:1px solid var(--line);
}
.cta-band p{color:var(--mist);margin-bottom:18px;font-size:.95rem}
.btn-dl{
  display:inline-block;padding:12px 32px;border-radius:30px;
  background:linear-gradient(135deg,var(--ember),var(--flame));
  color:#fff;font-weight:600;font-size:.95rem;
  box-shadow:0 6px 24px var(--glow);
  transition:transform .2s,box-shadow .2s;
}
.btn-dl:hover{color:#fff;transform:translateY(-2px);box-shadow:0 10px 32px var(--glow)}

/* breadcrumb */
.crumb{
  padding:14px 0;font-size:.82rem;color:var(--mist);
  border-bottom:1px solid var(--line);margin-bottom:28px;
}
.crumb a{color:var(--mist)}
.crumb a:hover{color:var(--ember)}
.crumb span{margin:0 8px;opacity:.5}

/* legal / sub pages */
.page-main{padding:28px 0 60px}
.page-main h1{
  font-family:var(--font-display);
  font-size:clamp(1.4rem,4vw,1.9rem);margin-bottom:20px;
}
.page-main h2{font-size:1.1rem;color:var(--ember);margin:24px 0 10px}
.page-main p,.page-main li{color:var(--mist);font-size:.92rem;margin-bottom:10px}
.page-main ul,.page-main ol{padding-left:22px;margin-bottom:14px}

/* error pages */
.err-wrap{
  text-align:center;padding:60px 20px 80px;
}
.err-code{
  font-size:5rem;font-weight:800;
  background:linear-gradient(135deg,var(--ember),var(--flame));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;line-height:1;
}
.err-wrap h1{font-size:1.4rem;margin:16px 0 10px}
.err-wrap p{color:var(--mist);margin-bottom:24px}

/* footer */
.site-foot{
  padding:36px 0 28px;border-top:1px solid var(--line);
  background:var(--coal);margin-top:20px;
}
.foot-grid{
  display:grid;grid-template-columns:1fr;gap:24px;
}
@media(min-width:600px){.foot-grid{grid-template-columns:2fr 1fr 1fr}}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.foot-brand img{width:32px;border-radius:8px}
.foot-brand span{font-weight:700}
.foot-desc{font-size:.82rem;color:var(--mist);line-height:1.6}
.foot-nav h4{font-size:.85rem;color:var(--snow);margin-bottom:10px}
.foot-nav ul{list-style:none}
.foot-nav a{display:block;padding:4px 0;font-size:.82rem;color:var(--mist)}
.foot-copy{
  text-align:center;margin-top:28px;padding-top:18px;
  border-top:1px solid var(--line);font-size:.78rem;color:rgba(200,184,212,.5);
}

/* thumb gallery */
.thumb-grid{
  display:grid;grid-template-columns:repeat(2,1fr);gap:14px;
}
@media(min-width:600px){.thumb-grid{grid-template-columns:repeat(3,1fr)}}
.thumb-card{
  border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--line);background:rgba(18,16,24,.5);
}
.thumb-card img{width:100%;aspect-ratio:9/14;object-fit:cover;object-position:top}
.thumb-card figcaption{
  padding:10px 12px;font-size:.78rem;color:var(--mist);line-height:1.5;
}

/* faq */
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  padding:18px 20px;border-radius:var(--radius);
  background:rgba(18,16,24,.55);border:1px solid var(--line);
}
.faq-item h3{font-size:.95rem;color:var(--snow);margin-bottom:8px}
.faq-item p{font-size:.88rem;color:var(--mist);margin:0;line-height:1.7}

/* two-column text */
.text-cols{
  display:grid;grid-template-columns:1fr;gap:24px;
}
@media(min-width:768px){.text-cols{grid-template-columns:1fr 1fr}}
.text-cols p{margin-bottom:12px;color:var(--mist);font-size:.93rem}

/* inline img accent */
.img-accent{
  display:grid;grid-template-columns:1fr;gap:20px;align-items:center;
}
@media(min-width:768px){.img-accent{grid-template-columns:2fr 5fr}}
.img-accent-media{
  border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);
  max-width:220px;margin:0 auto;
}
@media(min-width:768px){.img-accent-media{max-width:none;margin:0}}
.img-accent-media img{width:100%;aspect-ratio:9/16;object-fit:cover;object-position:top}
.img-accent-body p{margin-bottom:12px;color:var(--mist);font-size:.93rem}
.img-accent-body h3{
  font-size:1.05rem;color:var(--ember);margin:16px 0 8px;
  padding-left:10px;border-left:3px solid var(--flame);
}

/* mobile */
@media(max-width:767px){
  .menu-btn{display:block}
  .head-nav{display:none}
  .ad-row>div{width:calc(25% - 6px)}
  body.pin-on{--pin-h:96px}
  .hero{padding:32px 0 40px}
  .section{padding:32px 0}
}