/* 独立样式：仅供 /kaifa/danmu 使用，避免与官网全局样式冲突 */

:root{
  --dm-bg0:#070A12;
  --dm-bg1:#0B1020;
  --dm-card:#0E1630;
  --dm-line:rgba(129, 140, 248, .22);
  --dm-txt:rgba(255,255,255,.92);
  --dm-sub:rgba(255,255,255,.72);
  --dm-dim:rgba(255,255,255,.56);
  --dm-primary:#7C3AED;
  --dm-primary2:#22D3EE;
  --dm-accent:#A78BFA;
  --dm-good:#34D399;
  --dm-shadow: 0 20px 60px rgba(0,0,0,.55);
  --dm-radius: 18px;
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  color:var(--dm-txt);
  background:
    radial-gradient(1200px 800px at 70% 20%, rgba(124,58,237,.25), transparent 60%),
    radial-gradient(900px 600px at 20% 80%, rgba(34,211,238,.14), transparent 62%),
    linear-gradient(180deg, var(--dm-bg0), var(--dm-bg1));
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
  overflow-x:hidden;
}

a{ color:inherit; text-decoration:none; }
a:hover{ color:#fff; }
strong{ color:rgba(255,255,255,.98); }
code{ color:rgba(255,255,255,.9); }

.dm-wrap{
  width:min(1120px, calc(100% - 40px));
  margin:0 auto;
}

/* Starfield canvas */
#dmStarfield{
  position:fixed;
  inset:0;
  z-index:0;
  width:100%;
  height:100%;
  pointer-events:none;
  opacity:.55;
}

/* Header */
.dm-header{
  position:sticky;
  top:0;
  z-index:20;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: rgba(7,10,18,.50);
  border-bottom:1px solid rgba(124,58,237,.18);
}
.dm-header__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:14px 0;
}
.dm-brand{
  display:flex;
  align-items:center;
  gap:10px;
  letter-spacing:.2px;
}
.dm-brand__mark{
  width:14px;
  height:14px;
  border-radius:999px;
  background: linear-gradient(135deg, var(--dm-primary), var(--dm-primary2));
  box-shadow: 0 0 0 6px rgba(124,58,237,.14), 0 0 30px rgba(34,211,238,.22);
}
.dm-brand__text{
  font-weight:700;
  color:rgba(255,255,255,.9);
}
.dm-nav{
  display:flex;
  align-items:center;
  gap:14px;
  flex-wrap:wrap;
  justify-content:flex-end;
}
.dm-nav a{
  font-size:14px;
  color:rgba(255,255,255,.78);
  padding:8px 10px;
  border-radius:10px;
  border:1px solid transparent;
}
.dm-nav a:hover{
  color:#fff;
  border-color: rgba(167,139,250,.22);
  background: rgba(255,255,255,.04);
}
.dm-nav__cta{
  border-color: rgba(34,211,238,.22) !important;
  background: linear-gradient(135deg, rgba(124,58,237,.18), rgba(34,211,238,.10));
}

/* Hero */
.dm-hero{
  position:relative;
  z-index:1;
  padding:72px 0 54px;
}
.dm-hero__inner{ position:relative; }
.dm-hero__badge{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:10px 14px;
  border-radius:999px;
  border:1px solid rgba(129,140,248,.24);
  background: rgba(255,255,255,.04);
  color:rgba(255,255,255,.82);
  font-size:14px;
}
.dm-dot{
  width:8px;
  height:8px;
  border-radius:999px;
  background: var(--dm-good);
  box-shadow: 0 0 18px rgba(52,211,153,.55);
}
.dm-hero__title{
  margin:18px 0 12px;
  font-size: clamp(34px, 5vw, 56px);
  line-height:1.05;
  letter-spacing: -0.6px;
  position:relative;
}
.dm-hero__glow{
  position:absolute;
  inset:-40px -20px -40px -20px;
  z-index:-1;
  background:
    radial-gradient(400px 220px at 30% 55%, rgba(124,58,237,.22), transparent 62%),
    radial-gradient(380px 220px at 70% 40%, rgba(34,211,238,.16), transparent 60%);
  filter: blur(2px);
  opacity:.9;
}
.dm-hero__desc{
  margin:0;
  max-width: 920px;
  color: var(--dm-sub);
  font-size:16px;
  line-height:1.9;
}
.dm-hero__stats{
  margin-top:24px;
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:14px;
}
.dm-stat{
  border-radius: var(--dm-radius);
  border:1px solid rgba(129,140,248,.18);
  background: linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.02));
  box-shadow: 0 10px 40px rgba(0,0,0,.35);
  padding:16px 16px 14px;
  position:relative;
  overflow:hidden;
}
.dm-stat::before{
  content:"";
  position:absolute;
  inset:-2px;
  background: radial-gradient(600px 120px at 20% 20%, rgba(124,58,237,.22), transparent 55%);
  opacity:.8;
}
.dm-stat > *{ position:relative; }
.dm-stat__k{
  color: rgba(255,255,255,.62);
  font-size: 13px;
  letter-spacing:.2px;
}
.dm-stat__v{
  margin-top:8px;
  font-size:18px;
  font-weight:800;
  color:#fff;
}
.dm-stat__s{
  margin-top:6px;
  color: rgba(255,255,255,.64);
  font-size: 13px;
}
.dm-hero__actions{
  margin-top:22px;
  display:flex;
  gap:12px;
  flex-wrap:wrap;
}
.dm-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:12px 16px;
  border-radius: 14px;
  border:1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.04);
  color: rgba(255,255,255,.88);
  font-weight:700;
  letter-spacing:.1px;
  box-shadow: 0 10px 28px rgba(0,0,0,.22);
}
.dm-btn:hover{
  background: rgba(255,255,255,.07);
  border-color: rgba(167,139,250,.22);
  transform: translateY(-1px);
}
.dm-btn--primary{
  border-color: rgba(34,211,238,.24);
  background: linear-gradient(135deg, rgba(124,58,237,.75), rgba(34,211,238,.55));
  color:#0b0f1c;
  box-shadow: 0 18px 48px rgba(124,58,237,.25);
}
.dm-btn--primary:hover{
  filter: brightness(1.05);
  border-color: rgba(34,211,238,.34);
}
.dm-btn--ghost{
  background: rgba(255,255,255,.03);
}

.dm-hero__note{
  margin-top:18px;
  color: rgba(255,255,255,.60);
  font-size: 13px;
  line-height: 1.7;
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
}
.dm-kbd{
  padding:4px 8px;
  border-radius:10px;
  border:1px solid rgba(129,140,248,.22);
  background: rgba(255,255,255,.04);
  color: rgba(255,255,255,.78);
  font-weight:700;
  font-size:12px;
}

.dm-hero__grid{
  position:absolute;
  inset:0;
  z-index:-1;
  opacity:.45;
  background-image:
    linear-gradient(rgba(129,140,248,.10) 1px, transparent 1px),
    linear-gradient(90deg, rgba(129,140,248,.10) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(600px 380px at 40% 20%, #000 35%, transparent 70%);
  animation: dmGrid 18s linear infinite;
}
@keyframes dmGrid{
  0%{ transform: translate3d(0,0,0); }
  100%{ transform: translate3d(56px,56px,0); }
}

.dm-hero__orbs{ position:absolute; inset:0; z-index:-1; pointer-events:none; }
.dm-orb{
  position:absolute;
  border-radius:999px;
  filter: blur(10px);
  opacity:.85;
  transform: translateZ(0);
}
.dm-orb--a{
  width:220px; height:220px;
  left:8%; top:10%;
  background: radial-gradient(circle at 30% 30%, rgba(34,211,238,.55), rgba(34,211,238,0));
  animation: dmFloatA 10s ease-in-out infinite;
}
.dm-orb--b{
  width:260px; height:260px;
  right:6%; top:22%;
  background: radial-gradient(circle at 30% 30%, rgba(124,58,237,.55), rgba(124,58,237,0));
  animation: dmFloatB 12s ease-in-out infinite;
}
.dm-orb--c{
  width:340px; height:340px;
  left:20%; bottom:-10%;
  background: radial-gradient(circle at 30% 30%, rgba(167,139,250,.30), rgba(167,139,250,0));
  animation: dmFloatC 14s ease-in-out infinite;
}
@keyframes dmFloatA{ 0%,100%{ transform: translate(0,0);} 50%{ transform: translate(22px,18px);} }
@keyframes dmFloatB{ 0%,100%{ transform: translate(0,0);} 50%{ transform: translate(-18px,26px);} }
@keyframes dmFloatC{ 0%,100%{ transform: translate(0,0);} 50%{ transform: translate(16px,-18px);} }

/* Sections */
.dm-section{
  position:relative;
  z-index:1;
  padding: 56px 0;
}
.dm-section--alt{
  background: linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,.01));
  border-top:1px solid rgba(129,140,248,.12);
  border-bottom:1px solid rgba(129,140,248,.12);
}
.dm-section__head{
  margin-bottom: 18px;
}
.dm-h2{
  margin:0;
  font-size: clamp(22px, 3vw, 30px);
  letter-spacing: -.3px;
}
.dm-sub{
  margin:10px 0 0;
  color: var(--dm-sub);
  line-height: 1.9;
  font-size: 15px;
  max-width: 900px;
}

/* Cards */
.dm-cards{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:14px;
  margin-top: 18px;
}
.dm-card{
  border-radius: var(--dm-radius);
  border: 1px solid rgba(129,140,248,.16);
  background: linear-gradient(180deg, rgba(14,22,48,.86), rgba(10,14,26,.62));
  box-shadow: var(--dm-shadow);
  padding: 18px 18px 16px;
  position:relative;
  overflow:hidden;
}
.dm-card::after{
  content:"";
  position:absolute;
  inset:-2px;
  background: radial-gradient(520px 160px at 20% 0%, rgba(34,211,238,.12), transparent 55%);
  opacity:.9;
}
.dm-card > *{ position:relative; }
.dm-card h3{
  margin:0 0 8px;
  font-size: 18px;
  letter-spacing: -.2px;
}
.dm-card p{
  margin:0 0 12px;
  color: rgba(255,255,255,.72);
  line-height:1.8;
}
.dm-list{
  margin:0;
  padding-left:18px;
  color: rgba(255,255,255,.66);
  line-height:1.9;
}
.dm-list li{ margin:6px 0; }

/* Split panels */
.dm-split{
  margin-top: 18px;
  display:grid;
  grid-template-columns: 1.3fr 1fr;
  gap:14px;
}
.dm-panel{
  border-radius: var(--dm-radius);
  border:1px solid rgba(129,140,248,.16);
  background: rgba(255,255,255,.03);
  padding: 18px;
  box-shadow: 0 14px 46px rgba(0,0,0,.38);
}
.dm-panel--glow{
  background: linear-gradient(180deg, rgba(124,58,237,.12), rgba(34,211,238,.06));
  border-color: rgba(34,211,238,.18);
}
.dm-h3{
  margin:0 0 10px;
  font-size: 18px;
}
.dm-p{
  margin:0;
  color: rgba(255,255,255,.72);
  line-height:1.9;
}
.dm-check{
  margin:0;
  padding-left:0;
  list-style:none;
  display:grid;
  gap:10px;
}
.dm-check li{
  position:relative;
  padding-left:26px;
  color: rgba(255,255,255,.70);
  line-height:1.8;
}
.dm-check li::before{
  content:"";
  position:absolute;
  left:0;
  top:.35em;
  width:14px;
  height:14px;
  border-radius:6px;
  background: linear-gradient(135deg, rgba(124,58,237,.9), rgba(34,211,238,.7));
  box-shadow: 0 0 20px rgba(34,211,238,.18);
}
.dm-mini{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:12px;
  margin-top:12px;
  padding-top:12px;
  border-top:1px solid rgba(255,255,255,.10);
  color: rgba(255,255,255,.70);
}
.dm-mini__k{ color: rgba(255,255,255,.62); font-size:13px; }
.dm-mini__v{ font-weight:800; color:#fff; }

/* Timeline */
.dm-timeline{
  margin-top: 18px;
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:14px;
}
.dm-step{
  border-radius: var(--dm-radius);
  border: 1px solid rgba(129,140,248,.16);
  background: rgba(255,255,255,.03);
  padding: 18px;
  box-shadow: 0 14px 46px rgba(0,0,0,.34);
  position:relative;
  overflow:hidden;
}
.dm-step::before{
  content:"";
  position:absolute;
  inset:-2px;
  background: radial-gradient(420px 120px at 15% 10%, rgba(167,139,250,.16), transparent 55%);
  opacity:.9;
}
.dm-step > *{ position:relative; }
.dm-step__tag{
  display:inline-flex;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(34,211,238,.18);
  background: rgba(34,211,238,.06);
  color: rgba(255,255,255,.78);
  font-weight:800;
  font-size: 12px;
  letter-spacing:.2px;
}
.dm-step__title{
  margin-top: 12px;
  font-size: 18px;
  font-weight: 900;
  letter-spacing:-.2px;
}
.dm-step__desc{
  margin-top: 8px;
  color: rgba(255,255,255,.70);
  line-height:1.9;
}

/* Contact */
.dm-section--contact{
  padding: 56px 0 46px;
}
.dm-contact{
  display:grid;
  grid-template-columns: 1.4fr .8fr;
  gap:14px;
  border-radius: calc(var(--dm-radius) + 6px);
  border:1px solid rgba(129,140,248,.18);
  background: linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.02));
  box-shadow: var(--dm-shadow);
  padding: 18px;
}
.dm-contact__cta{
  margin-top: 16px;
  display:flex;
  gap:12px;
  flex-wrap:wrap;
}
.dm-tip{
  margin: 14px 0 0;
  color: rgba(255,255,255,.62);
  line-height:1.8;
  font-size: 13px;
}
.dm-qr{
  height:100%;
  border-radius: var(--dm-radius);
  border: 1px solid rgba(34,211,238,.16);
  background: rgba(7,10,18,.35);
  padding: 14px;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  gap:12px;
}
.dm-qr__head{
  display:flex;
  align-items:center;
  gap:10px;
  color: rgba(255,255,255,.82);
  font-weight:900;
}
.dm-qr__dot{
  width:10px;
  height:10px;
  border-radius:999px;
  background: linear-gradient(135deg, var(--dm-primary2), var(--dm-accent));
  box-shadow: 0 0 20px rgba(34,211,238,.22);
}
.dm-qr__img{
  width:100%;
  height:auto;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.02);
}
.dm-qr__foot{
  color: rgba(255,255,255,.66);
  font-size: 13px;
  line-height: 1.6;
}

.dm-footer{
  margin-top: 18px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  color: rgba(255,255,255,.58);
  font-size: 13px;
}
.dm-footer__links a{
  color: rgba(255,255,255,.72);
  border-bottom: 1px dashed rgba(255,255,255,.22);
}
.dm-footer__links a:hover{
  color:#fff;
  border-bottom-color: rgba(34,211,238,.45);
}
.dm-sep{ margin:0 8px; color: rgba(255,255,255,.35); }

/* Responsive */
@media (max-width: 980px){
  .dm-nav{ display:none; }
  .dm-hero__stats{ grid-template-columns: 1fr; }
  .dm-cards{ grid-template-columns: 1fr; }
  .dm-split{ grid-template-columns: 1fr; }
  .dm-timeline{ grid-template-columns: 1fr; }
  .dm-contact{ grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce){
  *{ animation-duration:.01ms !important; animation-iteration-count:1 !important; transition-duration:.01ms !important; }
  .dm-btn:hover{ transform:none; }
}