:root{
  --bg:#07090c;
  --bg-alt:#0c1015;
  --panel:rgba(255,255,255,.035);
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.16);
  --txt:#e9edf2;
  --txt-dim:#8d99a8;
  --txt-faint:#5d6874;
  --acc:#3ddc97;
  --acc-dim:#1f8a5f;
  --acc-soft:rgba(61,220,151,.12);
  --warn:#f2b34b;
  --radius:14px;
  --mono:'JetBrains Mono',ui-monospace,monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--bg);color:var(--txt);
  font-family:Inter,-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;
  font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.wrap{width:min(1160px,92vw);margin:0 auto}
.mono-tag{font-family:var(--mono);font-size:.72rem;letter-spacing:.04em;color:var(--acc);opacity:.85}

/* ---------- NAV ---------- */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;transition:background .3s,border-color .3s,backdrop-filter .3s;border-bottom:1px solid transparent}
.nav.scrolled{background:rgba(7,9,12,.82);backdrop-filter:blur(14px);border-bottom-color:var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:66px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:-.01em}
.brand-mark{
  width:30px;height:30px;border-radius:9px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--acc),var(--acc-dim));
  color:#04150d;font-weight:800;font-size:.95rem;
}
.brand-text{font-size:1.02rem}
.brand-sub{color:var(--txt-faint);font-weight:500;margin-left:4px;font-size:.86rem}
.nav-links{display:flex;align-items:center;gap:26px;font-size:.9rem;color:var(--txt-dim)}
.nav-links a{transition:color .2s;position:relative}
.nav-links a:hover{color:var(--txt)}
.nav-cta{
  border:1px solid var(--line-strong);border-radius:999px;padding:7px 16px;
  color:var(--txt)!important;background:var(--panel);transition:border-color .2s,background .2s;
}
.nav-cta:hover{border-color:var(--acc);background:var(--acc-soft)}
.nav-burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.nav-burger span{display:block;width:22px;height:2px;background:var(--txt);border-radius:2px;transition:transform .25s,opacity .25s}

/* ---------- HERO ---------- */
.hero{position:relative;min-height:100svh;display:flex;align-items:center;overflow:hidden}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;transform:scale(1.06)}
.hero-veil{
  position:absolute;inset:0;
  background:
    radial-gradient(120% 90% at 12% 20%,rgba(7,9,12,.55),rgba(7,9,12,.94) 62%),
    linear-gradient(180deg,rgba(7,9,12,.86),rgba(7,9,12,.97));
}
.hero-inner{position:relative;z-index:2;padding:120px 0 90px}
.eyebrow{font-family:var(--mono);font-size:.72rem;letter-spacing:.2em;color:var(--acc);margin-bottom:18px}
.hero h1{
  font-size:clamp(2.1rem,5.4vw,4.1rem);line-height:1.12;letter-spacing:-.03em;
  font-weight:700;max-width:16ch;
}
.hero h1 em{font-style:normal;color:var(--acc)}
.lede{margin-top:22px;max-width:56ch;color:var(--txt-dim);font-size:1.06rem}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:34px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;border-radius:999px;font-size:.94rem;font-weight:600;
  transition:transform .2s,box-shadow .25s,background .2s,border-color .2s;
}
.btn-primary{background:var(--acc);color:#04150d;box-shadow:0 8px 26px -10px rgba(61,220,151,.6)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 34px -12px rgba(61,220,151,.75)}
.btn-ghost{border:1px solid var(--line-strong);color:var(--txt);background:rgba(255,255,255,.02)}
.btn-ghost:hover{border-color:var(--acc);background:var(--acc-soft)}
.btn-full{width:100%;margin-top:8px}
.hero-stats{display:flex;gap:40px;flex-wrap:wrap;margin-top:56px;padding-top:28px;border-top:1px solid var(--line)}
.stat b{display:block;font-family:var(--mono);font-size:1.5rem;font-weight:500;color:var(--txt)}
.stat span{font-size:.82rem;color:var(--txt-faint)}

/* ---------- SECTIONS ---------- */
.sec{padding:110px 0;position:relative}
.sec-alt{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:62ch;margin-bottom:56px}
.sec-head h2{font-size:clamp(1.6rem,3.1vw,2.4rem);line-height:1.2;letter-spacing:-.025em;font-weight:700}
.sec-sub{margin-top:16px;color:var(--txt-dim)}
.grid{display:grid;gap:20px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}

.card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 26px;transition:border-color .25s,transform .25s,background .25s;
}
.card:hover{border-color:var(--line-strong);transform:translateY(-3px);background:rgba(255,255,255,.055)}
.card h3{font-size:1.06rem;font-weight:650;margin-bottom:8px;letter-spacing:-.01em}
.card p{color:var(--txt-dim);font-size:.94rem}
.card-line{border-left:2px solid var(--acc-dim)}
.card-line:hover{border-left-color:var(--acc)}
.card .mono-tag{margin-bottom:12px;display:block}

/* how it works */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:s}
.step{position:relative;padding-top:26px;border-top:1px solid var(--line)}
.step::before{
  counter-increment:s;content:"0" counter(s);
  font-family:var(--mono);font-size:.76rem;color:var(--acc);letter-spacing:.1em;
  position:absolute;top:-11px;left:0;background:var(--bg);padding-right:10px;
}
.sec-alt .step::before{background:var(--bg-alt)}
.step h3{font-size:1rem;margin-bottom:8px}
.step p{color:var(--txt-dim);font-size:.92rem}

/* risk */
.risk-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.risk-item{background:var(--bg-alt);padding:30px 26px;transition:background .25s}
.risk-item:hover{background:#101620}
.risk-item h3{font-size:.98rem;margin-bottom:10px;display:flex;align-items:center;gap:9px}
.risk-item h3::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--acc);flex:none}
.risk-item p{color:var(--txt-dim);font-size:.91rem}

/* contact */
.contact{background:linear-gradient(180deg,var(--bg-alt),var(--bg))}
.contact-inner{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.contact-note{margin-top:20px;font-family:var(--mono);font-size:.8rem;color:var(--txt-faint)}
.contact-card{
  background:rgba(255,255,255,.04);border:1px solid var(--line-strong);border-radius:18px;
  padding:30px;display:flex;flex-direction:column;gap:20px;
  box-shadow:0 30px 70px -40px rgba(0,0,0,.9);
}
.contact-row{display:flex;align-items:flex-start;gap:14px}
.contact-row iconify-icon{font-size:1.35rem;color:var(--acc);margin-top:2px;flex:none}
.c-label{display:block;font-size:.74rem;letter-spacing:.08em;color:var(--txt-faint);text-transform:uppercase}
.c-value{display:block;font-family:var(--mono);font-size:1rem;color:var(--txt);transition:color .2s;word-break:break-all}
a.c-value:hover{color:var(--acc)}
.c-value em{font-style:normal;font-family:Inter,sans-serif;font-size:.82rem;color:var(--txt-faint)}

/* footer */
.footer{border-top:1px solid var(--line);padding:44px 0 34px;background:var(--bg)}
.footer-inner{display:flex;flex-wrap:wrap;gap:20px;align-items:center;justify-content:space-between}
.footer-brand{display:flex;align-items:center;gap:11px}
.footer-brand strong{display:block;font-size:.96rem}
.footer-brand p{font-size:.8rem;color:var(--txt-faint)}
.footer-disclaimer{font-size:.79rem;color:var(--txt-faint);max-width:44ch}
.footer-copy{font-family:var(--mono);font-size:.76rem;color:var(--txt-faint)}

/* ---------- RESPONSIVE ---------- */
@media(max-width:980px){
  .grid-3,.risk-grid,.steps{grid-template-columns:repeat(2,1fr)}
  .contact-inner{grid-template-columns:1fr;gap:40px}
}
@media(max-width:760px){
  .sec{padding:80px 0}
  .nav-links{
    position:fixed;top:66px;left:0;right:0;flex-direction:column;gap:0;
    background:rgba(7,9,12,.97);backdrop-filter:blur(14px);
    border-bottom:1px solid var(--line);padding:12px 0;
    transform:translateY(-140%);transition:transform .3s ease;align-items:stretch;
  }
  .nav-links.open{transform:translateY(0)}
  .nav-links a{padding:13px 6vw;font-size:.95rem}
  .nav-cta{margin:8px 6vw 12px;text-align:center}
  .nav-burger{display:flex}
  .grid-2,.grid-3,.risk-grid,.steps{grid-template-columns:1fr}
  .hero-stats{gap:26px}
  .stat b{font-size:1.3rem}
  .footer-inner{flex-direction:column;align-items:flex-start}
}
@media(prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  html{scroll-behavior:auto}
}

/* ---------- Reveal animation ---------- */
[data-reveal]{opacity:0;transform:translateY(22px);transition:opacity .7s cubic-bezier(.22,.61,.36,1),transform .7s cubic-bezier(.22,.61,.36,1)}
[data-reveal].in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  [data-reveal]{opacity:1;transform:none}
}
.copy-hint{font-family:Inter,sans-serif;font-size:.7rem;color:var(--txt-faint);margin-left:8px;opacity:.7}

/* ===== 梦之幻 站点补充样式 ===== */
.sec-head h2{max-width:26ch}
.hero h1{max-width:20ch}

/* tip cards */
.tip{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;transition:border-color .25s,transform .25s,background .25s;
}
.tip:hover{border-color:var(--line-strong);transform:translateY(-3px);background:rgba(255,255,255,.055)}
.tip h3{
  display:flex;align-items:flex-start;gap:10px;
  font-size:1.02rem;font-weight:650;margin-bottom:10px;letter-spacing:-.01em;
}
.tip h3 iconify-icon{color:var(--acc);font-size:1.2rem;flex:none;margin-top:2px}
.tip p{color:var(--txt-dim);font-size:.93rem}
.more-row{margin-top:34px;text-align:center}

/* about */
.about-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px;align-items:start}
.about-body{color:var(--txt-dim);font-size:1rem;line-height:1.85}
.narrow{width:min(980px,92vw)}
.narrow .grid-2{margin-top:8px}

/* page head */
.page-head{
  padding:132px 0 40px;
  background:linear-gradient(180deg,var(--bg-alt),var(--bg));
  border-bottom:1px solid var(--line);
}
.page-head h1{font-size:clamp(1.9rem,4.2vw,3rem);line-height:1.16;letter-spacing:-.03em;font-weight:700;max-width:22ch}
.page-head .sec-sub{margin-top:16px}

/* contact page */
.contact-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.contact-block{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 22px;display:flex;flex-direction:column;gap:7px;
  transition:border-color .25s,background .25s;
}
.contact-block:hover{border-color:var(--line-strong);background:rgba(255,255,255,.055)}
.contact-block iconify-icon{font-size:1.5rem;color:var(--acc)}
.c-value.big{font-family:var(--mono);font-size:1.06rem;color:var(--txt)}
.c-note{font-size:.76rem;color:var(--txt-faint);display:block}
a.c-value.big:hover{color:var(--acc)}

/* callout */
.callout{
  margin-top:48px;background:var(--panel);border:1px solid var(--line);
  border-left:2px solid var(--acc-dim);border-radius:var(--radius);padding:32px 30px;
}
.callout h3{font-size:1.1rem;margin-bottom:16px}
.callout ul{list-style:none;display:grid;grid-template-columns:repeat(2,1fr);gap:12px 28px}
.callout li{position:relative;padding-left:20px;color:var(--txt-dim);font-size:.94rem}
.callout li::before{content:"";position:absolute;left:0;top:.62em;width:7px;height:7px;border-radius:2px;background:var(--acc-dim)}
.callout p{margin-top:20px;color:var(--txt-faint);font-size:.88rem}

/* footer brand wrap */
.footer-brand strong{font-size:.92rem}

@media(max-width:980px){
  .about-grid{grid-template-columns:1fr;gap:28px}
  .contact-grid{grid-template-columns:repeat(2,1fr)}
  .callout ul{grid-template-columns:1fr}
}
@media(max-width:760px){
  .contact-grid{grid-template-columns:1fr}
  .page-head{padding:104px 0 32px}
}

/* ---- media figure (visual richness) ---- */
.media-fig{
  position:relative;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;background:var(--bg-alt);margin:0;
}
.media-fig img{display:block;width:100%;height:100%;object-fit:cover;aspect-ratio:16/10}
.media-fig figcaption{
  padding:14px 18px;font-family:var(--mono);font-size:.74rem;letter-spacing:.06em;
  color:var(--txt-faint);border-top:1px solid var(--line);text-transform:uppercase;
}
.about-grid .media-fig{margin-top:24px}
.split{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.split.rev>*:first-child{order:2}
.split h3{font-size:1.15rem;margin-bottom:12px}
.split p{color:var(--txt-dim);font-size:.96rem;line-height:1.8}
.split .eyebrow{margin-bottom:10px}
@media(max-width:980px){
  .split{grid-template-columns:1fr;gap:26px}
  .split.rev>*:first-child{order:0}
}