/* ==========================================================
   破碎银河系 官网 —— EVE 风格皮肤
   近黑底 / 银灰与冰蓝 / 全大写宽字距 / 斜切按钮 / 极细线 / 大留白
   ========================================================== */
:root{
  --bg:#000;                 /* 近黑 */
  --bg2:#05080c;
  --panel:rgba(255,255,255,.035);
  --panel2:rgba(255,255,255,.06);
  --line:rgba(255,255,255,.12);
  --line-soft:rgba(255,255,255,.07);
  --steel:#d7dee8;           /* 银灰（主文字） */
  --txt:#b9c3cf;             /* 正文 */
  --dim:#6d7885;             /* 次要 */
  --acc:#7fb2d9;             /* 冰蓝 */
  --acc-lit:#a8cde8;
  --warn:#d8a24a;
  --bad:#d1636b;
  --ok:#7fc0a0;
  --sans:"Helvetica Neue",Helvetica,Arial,"Microsoft YaHei UI","Microsoft YaHei",sans-serif;
  --mono:"Consolas","Roboto Mono",monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg); color:var(--txt);
  font-family:var(--sans); font-size:15px; line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--acc);text-decoration:none;transition:.2s}
a:hover{color:var(--acc-lit)}
img{display:block;max-width:100%}
.wrap{width:min(1240px,92vw);margin:0 auto}

/* 全大写宽字距小标题（EVE 标志性的 eyebrow） */
.eyebrow{
  font-size:11px; letter-spacing:.42em; text-transform:uppercase;
  color:var(--acc); font-weight:500; margin-bottom:14px;
}
.eyebrow.dim{color:var(--dim)}

/* ---------- 顶栏：细、固定、半透明 ---------- */
header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:linear-gradient(180deg,rgba(0,0,0,.92),rgba(0,0,0,.55));
  border-bottom:1px solid var(--line-soft);
  backdrop-filter:blur(6px);
}
.nav{display:flex;align-items:center;gap:34px;padding:16px 0}
.brand{display:flex;align-items:center;gap:14px}
.brand img{width:36px;height:36px;filter:grayscale(.25) brightness(1.05)}
.brand b{font-size:15px;letter-spacing:.34em;color:var(--steel);font-weight:500}
.brand span{display:block;font:9px/1.5 var(--mono);letter-spacing:.3em;color:var(--dim)}
.nav ul{display:flex;gap:4px;margin-left:auto;list-style:none}
.nav a{
  display:block;padding:8px 16px;font-size:11px;letter-spacing:.24em;
  text-transform:uppercase;color:var(--dim);position:relative;
}
.nav a::after{
  content:"";position:absolute;left:16px;right:16px;bottom:2px;height:1px;
  background:var(--acc);transform:scaleX(0);transition:.24s;
}
.nav a:hover,.nav a.on{color:var(--steel)}
.nav a:hover::after,.nav a.on::after{transform:scaleX(1)}
@media(max-width:860px){
  .nav{gap:14px}.nav a{padding:8px 8px;font-size:10px;letter-spacing:.14em}
  .brand span{display:none}
}

/* ---------- Hero：全屏 ---------- */
.hero{
  /* min() 而非 min-height+max-height：后者 min 会压过 max，超大视口下会撑满整页 */
  min-height:min(88vh,860px);
  display:flex;flex-direction:column;justify-content:center;
  align-items:center;text-align:center;position:relative;padding:120px 0 70px;
  background:url('galaxy.jpg') center/cover no-repeat;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(ellipse at 50% 42%,rgba(10,18,26,.35),transparent 62%),
    linear-gradient(180deg,rgba(0,0,0,.72),rgba(0,0,0,.35) 42%,var(--bg) 100%);
}
.hero>*{position:relative;z-index:2}
.hero .ship{
  width:min(400px,56vw);margin:0 auto 28px;
  filter:drop-shadow(0 0 40px rgba(127,178,217,.35)) brightness(1.05);
}
.hero h1{
  font-size:clamp(34px,6.6vw,74px);letter-spacing:.22em;font-weight:300;
  color:#eef3f8;text-transform:uppercase;margin-bottom:16px;
  text-shadow:0 0 60px rgba(127,178,217,.25);
}
.hero p.lead{
  color:var(--txt);max-width:660px;margin:0 auto 34px;font-size:15px;font-weight:300;
  letter-spacing:.06em;line-height:2;
}
.cta{display:flex;gap:20px;justify-content:center;flex-wrap:wrap}

/* ---------- 斜切按钮（EVE 风格） ---------- */
.btn{
  display:inline-block;position:relative;padding:15px 40px;
  font-size:11px;letter-spacing:.3em;text-transform:uppercase;font-weight:500;
  color:var(--steel);background:transparent;cursor:pointer;
  transform:skewX(-14deg);transition:.24s;border:1px solid var(--line);
  font-family:inherit;
}
.btn>span{display:inline-block;transform:skewX(14deg)}
.btn::before{
  content:"";position:absolute;inset:0;background:rgba(127,178,217,.1);
  opacity:0;transition:.24s;
}
.btn:hover{border-color:var(--acc);color:#fff}
.btn:hover::before{opacity:1}
.btn.primary{border-color:var(--acc);background:rgba(127,178,217,.14)}
.btn.primary:hover{background:rgba(127,178,217,.3);box-shadow:0 0 34px rgba(127,178,217,.22)}
.btn.warn{border-color:rgba(216,162,74,.6);color:#e2c188}
.btn.warn::before{background:rgba(216,162,74,.1)}
.btn.warn:hover{border-color:var(--warn);color:#f0d6a4}
.btn[disabled]{opacity:.4;cursor:not-allowed}

/* ---------- 区块 ---------- */
section{padding:92px 0;position:relative}
section+section{border-top:1px solid var(--line-soft)}
.sec-head{margin-bottom:40px;max-width:760px}
.sec-head h2{
  font-size:clamp(22px,3vw,32px);letter-spacing:.16em;font-weight:300;
  color:var(--steel);text-transform:uppercase;margin-bottom:14px;
}
.sec-head p{color:var(--dim);font-size:14px;font-weight:300}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}

/* 图文交替（EVE 常见节奏） */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.split.rev>div:first-child{order:2}
@media(max-width:900px){.split{grid-template-columns:1fr;gap:28px}.split.rev>div:first-child{order:0}}
.split .media{
  position:relative;overflow:hidden;background:#04070b;
  border:1px solid var(--line-soft);
}
.split .media img{
  width:100%;filter:brightness(.9) contrast(1.06) saturate(.85);
  transition:.5s;
}
.split .media:hover img{transform:scale(1.03);filter:brightness(1) saturate(1)}
.split h3{
  font-size:20px;letter-spacing:.14em;color:var(--steel);font-weight:300;
  text-transform:uppercase;margin-bottom:16px;
}
.split p{color:var(--dim);font-weight:300;margin-bottom:14px}

/* ---------- 面板 / 网格 ---------- */
.panel{
  background:var(--panel);border:1px solid var(--line-soft);padding:34px 38px;
}
.grid{display:grid;gap:24px}
.g3{grid-template-columns:repeat(3,1fr)}
.g2{grid-template-columns:repeat(2,1fr)}
@media(max-width:900px){.g3,.g2{grid-template-columns:1fr}}
.feature h3{font-size:12px;letter-spacing:.26em;text-transform:uppercase;
  color:var(--acc);margin-bottom:14px;font-weight:500}
.feature p{color:var(--dim);font-size:14px;font-weight:300}
.feature{border-left:1px solid var(--line);padding-left:22px}

/* 数据条（等宽） */
.stat{display:flex;gap:28px;flex-wrap:wrap;margin-top:26px}
.stat div{
  border-left:1px solid var(--line);padding-left:16px;min-width:110px;
}
.stat b{display:block;font:22px/1.2 var(--mono);color:var(--steel)}
.stat small{font:9px/1.6 var(--mono);letter-spacing:.2em;color:var(--dim)}

/* ---------- 四大兵种卡 ---------- */
.divgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
@media(max-width:1000px){.divgrid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.divgrid{grid-template-columns:1fr}}
.divcard{
  border:1px solid var(--line-soft);background:var(--panel);
  padding:26px 22px;text-align:center;transition:.3s;color:inherit;display:block;
}
.divcard:hover{border-color:var(--acc);background:var(--panel2)}
.divcard .upic{height:104px;display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.divcard .upic img{max-height:98px;object-fit:contain;
  filter:brightness(1.05) saturate(.8) drop-shadow(0 0 18px rgba(127,178,217,.16));
  transition:.4s}
.divcard:hover .upic img{transform:translateY(-4px)}
.divcard h3{font-size:15px;letter-spacing:.24em;color:var(--steel);
  margin-bottom:6px;font-weight:400;text-transform:uppercase}
.divcard .en{font:9px/1.6 var(--mono);letter-spacing:.28em;color:var(--dim);margin-bottom:14px}
.divcard p{font-size:13px;color:var(--dim);text-align:left;font-weight:300}
.divcard .n{display:block;margin-top:14px;font:9px/1.6 var(--mono);
  letter-spacing:.18em;color:var(--acc)}

/* ---------- 系统条目 ---------- */
.sysgrid{display:grid;grid-template-columns:repeat(2,1fr);gap:30px 46px}
@media(max-width:860px){.sysgrid{grid-template-columns:1fr}}
.sys{border-top:1px solid var(--line);padding-top:20px}
.sys h3{font-size:12px;letter-spacing:.24em;text-transform:uppercase;
  color:var(--steel);margin-bottom:10px;font-weight:500}
.sys p{font-size:13px;color:var(--dim);font-weight:300}

/* ---------- 星域 / 国家 ---------- */
.stars{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:16px}
.star{border:1px solid var(--line-soft);padding:16px 18px;background:var(--panel)}
.star b{display:block;color:var(--steel);letter-spacing:.2em;
  font-size:13px;font-weight:400;margin-bottom:6px;text-transform:uppercase}
.star small{font:9px/1.7 var(--mono);letter-spacing:.16em;color:var(--dim)}
.flag{display:inline-block;width:10px;height:10px;margin-right:8px}
.nations{display:flex;gap:30px;flex-wrap:wrap;color:var(--dim);font-size:12px;
  letter-spacing:.14em}

/* ---------- 公告 ---------- */
.news-item{
  border-top:1px solid var(--line-soft);padding:22px 0;
}
.news-item:last-child{border-bottom:1px solid var(--line-soft)}
.news-item h3{font-size:16px;color:var(--steel);margin-bottom:8px;
  font-weight:400;letter-spacing:.08em}
.news-item .date{font:9px/1.6 var(--mono);letter-spacing:.24em;color:var(--dim);margin-bottom:10px}
.news-item p{color:var(--dim);font-size:14px;white-space:pre-wrap;font-weight:300}
.empty{color:var(--dim);text-align:center;padding:40px;font-size:13px;letter-spacing:.1em}

/* ---------- 下载 ---------- */
.dl-row{
  display:flex;align-items:center;gap:22px;padding:22px 0;flex-wrap:wrap;
  border-bottom:1px solid var(--line-soft);
}
.dl-row .meta{flex:1;min-width:250px}
.dl-row .meta b{display:block;font-size:15px;color:var(--steel);
  letter-spacing:.1em;font-weight:400;margin-bottom:6px}
.dl-row .meta small{font:10px/1.7 var(--mono);letter-spacing:.12em;color:var(--dim)}
.badge{
  display:inline-block;font:9px/1 var(--mono);letter-spacing:.2em;padding:5px 10px;
  margin-right:10px;border:1px solid var(--line);color:var(--acc);text-transform:uppercase;
}

/* ---------- 表单 ---------- */
.field{margin-bottom:22px}
.field label{
  display:block;font-size:10px;letter-spacing:.26em;text-transform:uppercase;
  color:var(--dim);margin-bottom:10px;
}
.field input,.field select,.field textarea{
  width:100%;background:rgba(255,255,255,.04);border:1px solid var(--line);
  color:var(--steel);padding:13px 15px;font-family:inherit;font-size:14px;
  outline:none;transition:.2s;font-weight:300;
}
.field textarea{min-height:140px;resize:vertical;font-family:var(--mono);font-size:13px}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--acc);background:rgba(127,178,217,.06);
}
.hint{font-size:12px;color:var(--dim);margin-top:8px;font-weight:300}
.msg{margin-top:18px;font-size:13px;min-height:22px;letter-spacing:.06em}
.msg.ok{color:var(--ok)}.msg.err{color:var(--bad)}.msg.wait{color:var(--warn)}
ul.notes{color:var(--dim);font-size:13px;padding-left:20px;font-weight:300}
ul.notes li{margin-bottom:8px}

/* ---------- 兵种图鉴 ---------- */
.tabs{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:28px}
.tab{
  padding:10px 26px;border:1px solid var(--line);color:var(--dim);cursor:pointer;
  font-size:10px;letter-spacing:.28em;text-transform:uppercase;
  background:transparent;transition:.24s;
}
.tab:hover{color:var(--steel);border-color:var(--line)}
.tab.on{border-color:var(--acc);color:var(--steel);background:rgba(127,178,217,.12)}
.chips{display:flex;gap:8px;flex-wrap:wrap;margin:-14px 0 22px}
.chip{
  padding:5px 16px;border:1px solid var(--line-soft);color:var(--dim);cursor:pointer;
  font:10px/1.7 var(--mono);letter-spacing:.14em;background:transparent;transition:.2s;
}
.chip:hover{color:var(--steel);border-color:var(--line)}
.chip.on{border-color:var(--acc);color:var(--steel);background:rgba(127,178,217,.12)}
.ucards{display:grid;grid-template-columns:repeat(auto-fill,minmax(212px,1fr));gap:18px}
.ucard{border:1px solid var(--line-soft);background:var(--panel);padding:18px;
  text-align:center;transition:.28s}
.ucard:hover{border-color:var(--line);background:var(--panel2)}
.ucard .pic{height:112px;display:flex;align-items:center;justify-content:center}
.ucard .pic img{max-height:104px;object-fit:contain;
  filter:brightness(1.05) saturate(.82) drop-shadow(0 0 16px rgba(127,178,217,.14))}
.ucard b{display:block;font-size:14px;color:var(--steel);letter-spacing:.12em;
  margin:8px 0 4px;font-weight:400}
.ucard .cls{font:9px/1.7 var(--mono);letter-spacing:.2em;color:var(--dim);margin-bottom:12px}
.ucard .stats{font:10px/2 var(--mono);color:var(--dim);text-align:left;
  border-top:1px solid var(--line-soft);padding-top:10px}
.ucard .stats span{color:var(--acc)}
table.ulist{width:100%;border-collapse:collapse;font:12px/2 var(--mono)}
table.ulist th{
  text-align:left;color:var(--acc);padding:10px 12px;border-bottom:1px solid var(--line);
  background:var(--bg2);font-weight:400;letter-spacing:.16em;font-size:10px;
  text-transform:uppercase;position:sticky;top:53px;
}
table.ulist td{padding:7px 12px;border-bottom:1px solid var(--line-soft);color:var(--dim)}
table.ulist td.uthumb{width:56px;padding:4px 8px}
table.ulist td.uthumb img{max-height:44px;max-width:52px;object-fit:contain;display:block}
table.ulist tr:hover td{background:rgba(127,178,217,.05);color:var(--steel)}
.counter{font:9px/1 var(--mono);letter-spacing:.24em;color:var(--acc);
  text-transform:uppercase;margin:18px 0 10px}

/* ==========================================================
   动效层：滚动渐显 / 视差 / 按钮光扫 / 图片缓慢推近
   ========================================================== */

/* 1) 滚动渐显 */
.reveal{
  opacity:0; transform:translateY(26px);
  transition:opacity .9s cubic-bezier(.16,.8,.3,1), transform .9s cubic-bezier(.16,.8,.3,1);
  will-change:opacity,transform;
}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.1s}.reveal.d2{transition-delay:.2s}
.reveal.d3{transition-delay:.3s}.reveal.d4{transition-delay:.4s}

/* 2) 按钮 hover 光扫 */
.btn{overflow:hidden}
.btn::after{
  content:"";position:absolute;top:0;bottom:0;width:38%;left:-60%;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.28),transparent);
  transform:skewX(-18deg);transition:left .55s ease;
}
.btn:hover::after{left:130%}

/* 3) 图片缓慢推近 */
@keyframes kenburns{
  from{transform:scale(1.02) translate3d(0,0,0)}
  to{transform:scale(1.12) translate3d(-1.2%,-1%,0)}
}
.kb{animation:kenburns 26s ease-in-out infinite alternate}
.kb.slow{animation-duration:38s}

/* 4) 星空粒子层 */
#stars{
  position:fixed;inset:0;z-index:0;pointer-events:none;
}
/* 内容需在粒子之上 */
header,.hero,section,footer{position:relative;z-index:2}

/* 5) 视差：由 JS 写入 --py */
.parallax{will-change:transform}

/* 尊重系统「减少动态效果」设置 */
@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .kb{animation:none}
  .btn::after{display:none}
}

/* ---------- 页脚 ---------- */
footer{
  border-top:1px solid var(--line-soft);padding:40px 0;background:var(--bg2);
}
footer .wrap{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:11px;letter-spacing:.16em;color:var(--dim);text-transform:uppercase}
footer b{color:var(--acc);font-weight:400}