/* ==========================================================
   《热血江湖：归来》静态下载页
   ========================================================== */

:root{
  --vermilion: #d23a3a;
  --vermilion-d:#a52828;
  --ink-1:#1a1a1a;
  --ink-2:#3a3a3a;
  --ink-3:#6a6a6a;
  --line:#e8e8e8;
  --paper:#ffffff;

  --teal-1:#6fe7c2;
  --teal-2:#3fcfa3;
  --teal-3:#2ea786;

  --f-display:"Ma Shan Zheng","ZCOOL KuaiLe","Noto Sans SC",serif;
  --f-cn:"ZCOOL KuaiLe","Ma Shan Zheng","Noto Sans SC",serif;
  --f-body:"Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  font-family:var(--f-body);
  color:var(--ink-1);
  background:#000;
  line-height:1.65;
  -webkit-text-size-adjust:100%;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
em{font-style:normal}

/* =================== HERO =================== */
.hero{
  position:relative;
  width:100%;
  min-height:100vh;
  background:#000;
  overflow:hidden;
  display:flex;align-items:center;justify-content:center;
}
.hero__art{
  position:absolute;inset:0;z-index:1;
}
.hero__art img{
  width:100%;height:100%;
  object-fit:cover;
  object-position:center;
}
/* 渐变遮罩：让底部叠加区更柔和，让顶部 LOGO/按钮可读 */
.hero__art::after{
  content:"";position:absolute;inset:0;z-index:2;
  background:
    linear-gradient(180deg, rgba(0,0,0,.25) 0%, rgba(0,0,0,0) 25%, rgba(0,0,0,0) 60%, rgba(0,0,0,.55) 100%),
    radial-gradient(ellipse at 50% 100%, rgba(0,0,0,.35) 0%, transparent 60%);
  pointer-events:none;
}

.hero__overlay{
  position:absolute;
  left:50%;bottom:8%;
  transform:translateX(-50%);
  z-index:3;
  display:flex;flex-direction:column;align-items:center;gap:18px;
  width:min(560px,92%);
  padding:28px 28px 26px;
  background:rgba(255,255,255,.92);
  border-radius:14px;
  box-shadow:
    0 24px 60px rgba(0,0,0,.45),
    0 0 0 1px rgba(255,255,255,.6) inset;
  backdrop-filter:blur(6px);
}

.hero__brand{text-align:center}
.brand__cn{
  font-family:var(--f-display);
  font-size:42px;line-height:1.1;
  color:var(--vermilion);
  letter-spacing:6px;
  text-shadow:1px 1px 0 #fff, 2px 2px 8px rgba(210,58,58,.2);
}
.brand__en{
  margin-top:6px;
  font-family:var(--f-body);
  font-size:12px;
  letter-spacing:5px;
  color:var(--ink-3);
  text-transform:uppercase;
}

/* ===== 下载按钮 ===== */
.btn-download{
  position:relative;
  display:inline-flex;align-items:center;gap:14px;
  padding:16px 36px;
  font-family:var(--f-cn);
  background:linear-gradient(180deg, var(--teal-1) 0%, var(--teal-2) 60%, var(--teal-3) 100%);
  color:#fff;
  border:2px solid #fff;
  border-radius:12px;
  font-size:22px;
  box-shadow:
    inset 0 2px 0 rgba(255,255,255,.6),
    inset 0 -3px 0 rgba(0,80,60,.3),
    0 10px 24px rgba(40,160,120,.45),
    0 0 0 4px rgba(255,255,255,.3);
  overflow:hidden;
  transition:transform .25s ease, box-shadow .25s ease;
}
.btn-download:hover{
  transform:translateY(-2px) scale(1.02);
  box-shadow:
    inset 0 2px 0 rgba(255,255,255,.6),
    inset 0 -3px 0 rgba(0,80,60,.3),
    0 16px 32px rgba(40,160,120,.6),
    0 0 0 6px rgba(255,255,255,.45);
}
.btn-download:active{transform:translateY(0) scale(.98)}
.btn-download__icon{
  display:inline-flex;width:30px;height:30px;
  background:rgba(255,255,255,.95);color:var(--teal-3);
  border-radius:6px;align-items:center;justify-content:center;
}
.btn-download__icon svg{width:20px;height:20px}
.btn-download__text{display:flex;flex-direction:column;line-height:1.1}
.btn-download__text strong{font-size:24px;font-weight:700;letter-spacing:2px}
.btn-download__text em{
  font-family:var(--f-body);font-size:11px;
  opacity:.85;margin-top:3px;letter-spacing:1px;
}
.btn-download__shine{
  position:absolute;top:0;left:-80%;width:50%;height:100%;
  background:linear-gradient(90deg, transparent, rgba(255,255,255,.6), transparent);
  animation:shine 3s ease-in-out infinite;
}
@keyframes shine{
  0%   { left:-80% }
  60%  { left:120% }
  100% { left:120% }
}

.hero__hint{
  font-family:var(--f-body);
  font-size:12px;color:var(--ink-3);
  letter-spacing:1px;
  text-align:center;
}

/* =================== 黑色信息区 =================== */
.info{
  background:#000;
  color:#d8d8d8;
  padding:80px 6% 60px;
}
.info__inner{
  max-width:760px;margin:0 auto;
}

.info__title{
  text-align:center;
  margin-bottom:36px;
  font-weight:400;
}
.info__title-cn{
  display:block;
  font-family:var(--f-display);
  font-size:34px;color:#fff;
  letter-spacing:6px;
}
.info__title-en{
  display:block;margin-top:6px;
  font-family:var(--f-body);
  font-size:11px;letter-spacing:5px;
  color:#7a7a7a;text-transform:uppercase;
}

.info__list{margin-bottom:36px}
.info__row{
  display:flex;align-items:baseline;
  padding:14px 4px;
  border-bottom:1px dashed rgba(255,255,255,.12);
}
.info__row:last-child{border-bottom:none}
.info__row dt{
  flex:0 0 110px;
  font-family:var(--f-cn);
  font-size:15px;color:#9a9a9a;
  letter-spacing:3px;
}
.info__row dd{
  flex:1;
  font-family:var(--f-body);
  font-size:16px;color:#e8e8e8;
  letter-spacing:1px;
}

.info__sep{
  border:none;
  height:1px;
  background:rgba(255,255,255,.12);
  margin:36px 0;
}

.info__company{
  font-family:var(--f-cn);
  font-size:18px;color:#fff;
  letter-spacing:4px;
  text-align:center;
  margin-bottom:8px;
}
.info__copy{
  font-family:var(--f-body);
  font-size:12px;color:#7a7a7a;
  text-align:center;
  letter-spacing:1px;
}
.info__warn{
  margin-top:30px;
  font-family:var(--f-body);
  font-size:11px;color:#5a5a5a;
  line-height:1.9;
  text-align:center;
  max-width:640px;margin-left:auto;margin-right:auto;
  letter-spacing:.5px;
}

/* =================== 响应式 =================== */
@media (max-width:720px){
  .hero__overlay{padding:22px 18px;gap:14px;bottom:6%}
  .brand__cn{font-size:32px;letter-spacing:4px}
  .btn-download{padding:14px 24px;font-size:18px}
  .btn-download__text strong{font-size:20px}
  .info{padding:60px 5% 40px}
  .info__row{flex-direction:column;gap:4px;padding:14px 0}
  .info__row dt{flex:none;font-size:13px}
  .info__row dd{font-size:15px}
}