/* ============================================================
   终末之境 TERMINUS — 暗色工业科幻概念站
   ============================================================ */

:root{
  --bg:#07090a;
  --bg-2:#0b0e10;
  --bg-3:#101417;
  --ink:#e9efee;
  --ink-2:#aab6b8;
  --dim:#6d7a7e;
  --line:rgba(233,239,238,.12);
  --line-2:rgba(233,239,238,.22);
  --mint:#7ff0c3;
  --mint-dim:rgba(127,240,195,.14);
  --hazard:#ff5b2e;
  --font: "Helvetica Neue", Helvetica, Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --ease: cubic-bezier(.16,1,.3,1);
  --pad: clamp(20px, 5vw, 80px);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  background:var(--bg);color:var(--ink);font-family:var(--font);
  font-size:15px;line-height:1.7;letter-spacing:.02em;
  overflow-x:hidden;-webkit-font-smoothing:antialiased;
}
body.is-locked{overflow:hidden}
img,svg,canvas{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul{list-style:none}
::selection{background:var(--mint);color:#04120d}

body::before{
  content:"";position:fixed;inset:0;z-index:9998;pointer-events:none;
  background:repeating-linear-gradient(0deg,rgba(0,0,0,.16) 0 1px,transparent 1px 3px);
  opacity:.28;mix-blend-mode:multiply;
}
body::after{
  content:"";position:fixed;inset:0;z-index:9997;pointer-events:none;
  background:radial-gradient(ellipse at 50% 40%,transparent 40%,rgba(0,0,0,.55) 100%);
}

.wrap{width:100%;max-width:1480px;margin:0 auto;padding:0 var(--pad)}

/* ---------- 载入层 ---------- */
.loader{
  position:fixed;inset:0;z-index:10000;background:var(--bg);
  display:flex;align-items:center;justify-content:center;
  transition:opacity .7s var(--ease),visibility .7s;
}
.loader.is-done{opacity:0;visibility:hidden}
.loader__inner{width:min(520px,72vw)}
.loader__brand{
  font-size:clamp(28px,5vw,46px);font-weight:800;letter-spacing:.24em;
  margin-bottom:26px;color:var(--ink)
}
.loader__brand span{color:var(--mint);margin-left:.2em}
.loader__bar{height:1px;background:var(--line-2);position:relative;overflow:hidden}
.loader__bar i{position:absolute;left:0;top:0;height:100%;width:0;background:var(--mint);transition:width .2s linear}
.loader__meta{
  display:flex;justify-content:space-between;margin-top:12px;
  font-size:10px;letter-spacing:.28em;color:var(--dim);text-transform:uppercase
}
.loader__meta b{color:var(--mint);font-variant-numeric:tabular-nums}

/* ---------- 光标光晕 ---------- */
.cursor-glow{
  position:fixed;top:0;left:0;width:520px;height:520px;z-index:1;pointer-events:none;
  background:radial-gradient(circle,rgba(127,240,195,.10),transparent 62%);
  transform:translate(-50%,-50%);opacity:0;transition:opacity .4s;
}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.6em;
  height:46px;padding:0 26px;font-size:12px;letter-spacing:.2em;text-transform:uppercase;
  position:relative;overflow:hidden;transition:color .35s var(--ease),border-color .35s,background .35s;
  white-space:nowrap;
}
.btn--solid{background:var(--mint);color:#04120d;font-weight:700}
.btn--solid:hover{background:var(--ink)}
.btn--line,.btn--ghost{border:1px solid var(--line-2);color:var(--ink)}
.btn--line:hover,.btn--ghost:hover{border-color:var(--mint);color:var(--mint)}
.btn--ghost{height:38px;padding:0 18px;font-size:11px}
.btn::after{
  content:"";position:absolute;left:-100%;top:0;width:100%;height:100%;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.16),transparent);
  transition:left .6s var(--ease)
}
.btn:hover::after{left:100%}

/* ---------- 顶栏 ---------- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:900;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:0 var(--pad);height:76px;
  border-bottom:1px solid transparent;
  transition:background .45s var(--ease),height .45s var(--ease),border-color .45s;
}
.nav.is-stuck{
  height:62px;background:rgba(7,9,10,.82);backdrop-filter:blur(14px);
  border-bottom-color:var(--line)
}
.nav__brand{display:flex;align-items:center;gap:12px}
.nav__mark{
  font-weight:800;font-size:20px;letter-spacing:-.02em;line-height:1;
  border:1px solid var(--line-2);padding:7px 9px;transition:border-color .3s,color .3s
}
.nav__mark span{color:var(--mint)}
.nav__brand:hover .nav__mark{border-color:var(--mint)}
.nav__name{display:flex;flex-direction:column;line-height:1.15;font-size:13px;font-weight:700;letter-spacing:.12em}
.nav__name em{font-style:normal;font-size:9px;letter-spacing:.34em;color:var(--dim);font-weight:400}
.nav__menu{display:flex;align-items:center;gap:clamp(14px,2.2vw,34px)}
.nav__menu a{
  position:relative;font-size:12.5px;letter-spacing:.1em;color:var(--ink-2);
  padding:6px 0;transition:color .3s;display:flex;align-items:baseline;gap:6px
}
.nav__menu a i{font-style:normal;font-size:8.5px;color:var(--dim);letter-spacing:.1em}
.nav__menu a::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:0;background:var(--mint);
  transition:width .35s var(--ease)
}
.nav__menu a:hover{color:var(--ink)}
.nav__menu a:hover::after{width:100%}
.nav__right{display:flex;align-items:center;gap:14px}
.nav__burger{display:none;width:34px;height:34px;position:relative;border:1px solid var(--line-2)}
.nav__burger span{
  position:absolute;left:8px;right:8px;height:1px;background:var(--ink);
  transition:transform .35s var(--ease),opacity .3s
}
.nav__burger span:nth-child(1){top:13px}
.nav__burger span:nth-child(2){top:20px}
.nav__burger[aria-expanded="true"] span:nth-child(1){transform:translateY(3.5px) rotate(45deg)}
.nav__burger[aria-expanded="true"] span:nth-child(2){transform:translateY(-3.5px) rotate(-45deg)}

/* ---------- 首屏 ---------- */
.hero{
  position:relative;min-height:100svh;display:flex;flex-direction:column;justify-content:center;
  padding:120px var(--pad) 90px;overflow:hidden;isolation:isolate;
  background:
    linear-gradient(180deg,rgba(5,7,8,.62) 0%,rgba(9,12,14,.32) 48%,rgba(7,9,10,.94) 100%),
    radial-gradient(120% 90% at 78% 12%,rgba(127,240,195,.16),transparent 55%),
    radial-gradient(90% 80% at 8% 92%,rgba(255,91,46,.12),transparent 60%),
    url("../img/hero-terrain.svg") center 62%/cover no-repeat,
    linear-gradient(180deg,#050708 0%,#0a0d0f 62%,#07090a 100%);
}
.hero__canvas{position:absolute;inset:0;width:100%;height:100%;z-index:0;opacity:.55}
.hero__grid{
  position:absolute;inset:-2px;z-index:0;pointer-events:none;
  background-image:
    linear-gradient(to right,rgba(127,240,195,.07) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(127,240,195,.07) 1px,transparent 1px);
  background-size:88px 88px;
  mask-image:radial-gradient(ellipse 85% 80% at 55% 45%,#000 10%,transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse 85% 80% at 55% 45%,#000 10%,transparent 78%);
}
.hero__scan{
  position:absolute;left:0;right:0;height:180px;z-index:1;pointer-events:none;
  background:linear-gradient(180deg,transparent,rgba(127,240,195,.055),transparent);
  animation:scan 9s linear infinite;
}
@keyframes scan{0%{top:-20%}100%{top:110%}}
.hero__frame{position:absolute;inset:0;z-index:2;pointer-events:none}
.hero__tick{position:absolute;width:26px;height:26px;border:1px solid rgba(127,240,195,.5)}
.hero__tick--tl{top:96px;left:calc(var(--pad) - 12px);border-right:0;border-bottom:0}
.hero__tick--tr{top:96px;right:calc(var(--pad) - 12px);border-left:0;border-bottom:0}
.hero__tick--bl{bottom:34px;left:calc(var(--pad) - 12px);border-right:0;border-top:0}
.hero__tick--br{bottom:34px;right:calc(var(--pad) - 12px);border-left:0;border-top:0}

.hero__side{
  position:absolute;right:calc(var(--pad) - 4px);top:50%;z-index:3;
  transform:translateY(-50%);display:flex;flex-direction:column;align-items:center;gap:18px;
  writing-mode:vertical-rl;font-size:9.5px;letter-spacing:.42em;color:var(--dim);text-transform:uppercase
}
.hero__side-line{width:1px;height:80px;background:linear-gradient(var(--mint),transparent)}
.hero__side-year{color:var(--mint)}

.hero__content{position:relative;z-index:3;max-width:900px}
.hero__eyebrow{
  display:flex;align-items:center;gap:12px;font-size:10.5px;letter-spacing:.34em;
  color:var(--mint);text-transform:uppercase;margin-bottom:26px
}
.hero__eyebrow i{width:44px;height:1px;background:var(--mint);display:block}
.hero__title{line-height:.86;margin-bottom:30px}
.hero__title-cn{
  display:block;font-size:clamp(56px,11vw,150px);font-weight:800;letter-spacing:.06em;
  text-shadow:0 0 60px rgba(127,240,195,.18);
}
.hero__title-en{
  display:block;font-size:clamp(30px,6.4vw,86px);font-weight:300;letter-spacing:.3em;
  color:transparent;-webkit-text-stroke:1px rgba(233,239,238,.55);
  margin-top:.14em;margin-left:.12em;
}
.hero__desc{font-size:clamp(13px,1.35vw,16px);color:var(--ink-2);line-height:2;margin-bottom:38px;max-width:520px}
.hero__actions{display:flex;gap:14px;flex-wrap:wrap}

.hero__hud{
  position:absolute;left:var(--pad);right:var(--pad);bottom:34px;z-index:3;
  display:flex;gap:clamp(20px,4vw,64px);flex-wrap:wrap;
  padding-top:16px;border-top:1px solid var(--line)
}
.hero__hud-item{display:flex;align-items:baseline;gap:10px;font-size:10px;letter-spacing:.2em;color:var(--dim);text-transform:uppercase}
.hero__hud-item b{font-size:12px;color:var(--ink);letter-spacing:.12em}
.hero__hud-item .warn{color:var(--hazard)}
.hero__scroll{
  position:absolute;right:calc(var(--pad) + 34px);bottom:96px;z-index:4;
  display:flex;flex-direction:column;align-items:center;gap:10px;
  font-size:9px;letter-spacing:.4em;color:var(--dim);writing-mode:vertical-rl
}
.hero__scroll i{width:1px;height:64px;background:linear-gradient(transparent,var(--mint));animation:drip 2.4s var(--ease) infinite}
@keyframes drip{0%,100%{opacity:.25;transform:scaleY(.6)}50%{opacity:1;transform:scaleY(1)}}

/* ---------- 区块通用 ---------- */
.section{position:relative;padding:clamp(72px,10vw,140px) 0;border-top:1px solid var(--line)}
.section::before{
  content:"";position:absolute;top:-1px;left:var(--pad);width:64px;height:1px;background:var(--mint)
}
.sec-head{position:relative;margin-bottom:clamp(36px,5vw,64px);max-width:840px}
.sec-head__tag{
  display:flex;align-items:center;gap:10px;font-size:9.5px;letter-spacing:.3em;
  color:var(--dim);text-transform:uppercase;margin-bottom:18px
}
.sec-head__tag i{width:6px;height:6px;background:var(--mint);display:block;box-shadow:0 0 12px var(--mint)}
.sec-head__title{
  display:flex;align-items:baseline;gap:18px;flex-wrap:wrap;
  font-size:clamp(30px,4.6vw,58px);font-weight:700;letter-spacing:.04em;line-height:1.1
}
.sec-head__title em{
  font-style:normal;font-size:11px;font-weight:400;letter-spacing:.2em;color:var(--mint);
  border:1px solid rgba(127,240,195,.4);padding:4px 8px;transform:translateY(-.8em)
}
.sec-head__title span{
  font-size:10.5px;font-weight:400;letter-spacing:.36em;color:var(--dim);transform:translateY(-.2em)
}
.sec-head__desc{margin-top:18px;color:var(--ink-2);font-size:14px;max-width:620px;line-height:1.95}
.sec-head__more{
  position:absolute;right:0;bottom:6px;font-size:12px;letter-spacing:.14em;color:var(--ink-2);
  border-bottom:1px solid var(--line-2);padding-bottom:3px;transition:color .3s,border-color .3s
}
.sec-head__more:hover{color:var(--mint);border-color:var(--mint)}

/* 滚动揭示 */
.reveal{opacity:0;transform:translateY(38px);transition:opacity 1s var(--ease),transform 1s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- 干员 ---------- */
.ops{position:relative}
.ops__rail{
  display:flex;gap:clamp(14px,1.6vw,22px);overflow-x:auto;scroll-snap-type:x mandatory;
  padding-bottom:18px;scrollbar-width:none;-ms-overflow-style:none;
  scroll-behavior:smooth;cursor:grab
}
.ops__rail::-webkit-scrollbar{display:none}
.ops__rail.is-drag{cursor:grabbing}
.op{
  flex:0 0 clamp(220px,22vw,290px);scroll-snap-align:start;
  border:1px solid var(--line);background:var(--bg-2);
  transition:border-color .45s var(--ease),transform .45s var(--ease),background .45s;
  position:relative
}
.op:hover{border-color:rgba(127,240,195,.45);transform:translateY(-6px);background:#0d1113}
.op__visual{
  position:relative;aspect-ratio:3/4;overflow:hidden;
  display:grid;place-items:center;isolation:isolate;
  background-color:#0a0d0f
}
.op__visual::before{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(7,9,10,.52) 0%,rgba(7,9,10,.10) 44%,rgba(7,9,10,.86) 100%),
    radial-gradient(70% 55% at 50% 24%,rgba(127,240,195,.26),transparent 62%),
    url("../img/operator-si.svg") center 38%/cover no-repeat,
    linear-gradient(165deg,#14191c,#07090a 74%);
  z-index:-1;transition:transform .8s var(--ease)
}
.op:hover .op__visual::before{transform:scale(1.08)}
.op__visual--b::before{background:
  linear-gradient(180deg,rgba(7,9,10,.52) 0%,rgba(7,9,10,.10) 44%,rgba(7,9,10,.86) 100%),
  radial-gradient(70% 55% at 50% 24%,rgba(120,170,255,.24),transparent 62%),
  url("../img/operator-lan.svg") center 38%/cover no-repeat,
  linear-gradient(165deg,#12171b,#07090a 74%)}
.op__visual--c::before{background:
  linear-gradient(180deg,rgba(7,9,10,.52) 0%,rgba(7,9,10,.10) 44%,rgba(7,9,10,.86) 100%),
  radial-gradient(70% 55% at 50% 24%,rgba(255,190,110,.22),transparent 62%),
  url("../img/operator-su.svg") center 38%/cover no-repeat,
  linear-gradient(165deg,#171312,#07090a 74%)}
.op__visual--d::before{background:
  linear-gradient(180deg,rgba(7,9,10,.52) 0%,rgba(7,9,10,.10) 44%,rgba(7,9,10,.86) 100%),
  radial-gradient(70% 55% at 50% 24%,rgba(180,140,255,.22),transparent 62%),
  url("../img/operator-pan.svg") center 38%/cover no-repeat,
  linear-gradient(165deg,#131118,#07090a 74%)}
.op__visual--e::before{background:
  linear-gradient(180deg,rgba(7,9,10,.52) 0%,rgba(7,9,10,.10) 44%,rgba(7,9,10,.86) 100%),
  radial-gradient(70% 55% at 50% 24%,rgba(127,240,195,.20),transparent 60%),
  radial-gradient(50% 40% at 20% 80%,rgba(255,91,46,.16),transparent 60%),
  url("../img/operator-li.svg") center 38%/cover no-repeat,
  linear-gradient(165deg,#101414,#07090a 74%)}
.op__visual::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(233,239,238,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(233,239,238,.05) 1px,transparent 1px);
  background-size:34px 34px;opacity:.7;
  mask-image:linear-gradient(#000,transparent 80%);
  -webkit-mask-image:linear-gradient(#000,transparent 80%)
}
.op__glyph{
  font-size:clamp(78px,9vw,118px);font-weight:800;color:transparent;
  -webkit-text-stroke:1px rgba(233,239,238,.5);letter-spacing:0;
  transition:transform .7s var(--ease),-webkit-text-stroke-color .5s;
  text-shadow:0 0 46px rgba(127,240,195,.28)
}
.op:hover .op__glyph{transform:scale(1.06) translateY(-2px);-webkit-text-stroke-color:var(--mint)}
.op__index{
  position:absolute;top:14px;left:14px;font-size:9px;letter-spacing:.24em;
  color:var(--mint);text-transform:uppercase
}
.op__scan{
  position:absolute;left:0;right:0;height:30%;top:-30%;
  background:linear-gradient(180deg,transparent,rgba(127,240,195,.16),transparent);
  transition:top .7s var(--ease)
}
.op:hover .op__scan{top:100%}
.op__meta{padding:18px 16px 20px}
.op__meta h3{display:flex;align-items:baseline;gap:8px;font-size:20px;letter-spacing:.06em;margin-bottom:12px}
.op__meta h3 em{font-style:normal;font-size:9px;letter-spacing:.3em;color:var(--dim)}
.op__meta dl{display:grid;gap:7px;margin-bottom:14px}
.op__meta dl div{display:flex;justify-content:space-between;gap:10px;font-size:11px;border-bottom:1px dashed rgba(233,239,238,.09);padding-bottom:6px}
.op__meta dt{color:var(--dim);letter-spacing:.12em}
.op__meta dd{color:var(--ink);text-align:right}
.op__quote{font-size:11.5px;color:var(--mint);line-height:1.7;opacity:.85}

.ops__ctrl{display:flex;align-items:center;gap:10px;justify-content:flex-end;margin-top:8px}
.ops__count{font-size:11px;letter-spacing:.22em;color:var(--dim);margin-right:8px}
.ops__count b{color:var(--ink);font-variant-numeric:tabular-nums}
.ops__btn{
  width:42px;height:42px;border:1px solid var(--line-2);display:grid;place-items:center;
  transition:border-color .3s,color .3s,background .3s
}
.ops__btn:hover{border-color:var(--mint);color:var(--mint);background:var(--mint-dim)}
.ops__btn:disabled{opacity:.3;cursor:not-allowed}

/* ---------- 世界观 ---------- */
.section--lore{background:linear-gradient(180deg,#07090a,#090c0e 60%,#07090a)}
.lore{display:grid;grid-template-columns:1.02fr 1fr;gap:clamp(30px,5vw,80px);align-items:center}
.lore__visual{
  position:relative;aspect-ratio:1/1;max-height:560px;
  border:1px solid var(--line);background:radial-gradient(circle at 50% 50%,#0d1214,#07090a 70%);
  display:grid;place-items:center;overflow:hidden
}
.lore__visual::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(127,240,195,.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(127,240,195,.06) 1px,transparent 1px);
  background-size:44px 44px;
  mask-image:radial-gradient(circle at 50% 50%,#000,transparent 72%);
  -webkit-mask-image:radial-gradient(circle at 50% 50%,#000,transparent 72%)
}
.lore__rings{position:relative;width:78%;aspect-ratio:1/1;display:grid;place-items:center}
.ring{position:absolute;border-radius:50%;border:1px solid rgba(127,240,195,.22)}
.ring--1{inset:0;animation:spin 46s linear infinite;border-style:dashed;border-color:rgba(127,240,195,.28)}
.ring--2{inset:12%;border-color:rgba(233,239,238,.12);animation:spin 30s linear infinite reverse}
.ring--3{inset:24%;border-color:rgba(127,240,195,.18);animation:spin 22s linear infinite}
.ring--4{inset:36%;border-color:rgba(255,91,46,.22);border-style:dotted;animation:spin 60s linear infinite reverse}
.ring--1::after{
  content:"";position:absolute;top:-3px;left:50%;width:6px;height:6px;border-radius:50%;
  background:var(--mint);box-shadow:0 0 14px var(--mint);transform:translateX(-50%)
}
@keyframes spin{to{transform:rotate(360deg)}}
.lore__core{
  position:absolute;inset:42%;border-radius:50%;
  background:radial-gradient(circle,rgba(127,240,195,.9),rgba(127,240,195,.15) 60%,transparent 72%);
  animation:pulse 4.5s var(--ease) infinite
}
@keyframes pulse{0%,100%{transform:scale(.9);opacity:.7}50%{transform:scale(1.12);opacity:1}}
.lore__station{position:relative;z-index:2;width:74px;height:74px}
.lore__station svg{width:100%;height:100%;fill:none;stroke:var(--ink);stroke-width:1.1;opacity:.92;filter:drop-shadow(0 0 10px rgba(127,240,195,.5))}
.lore__labels{position:absolute;inset:0;pointer-events:none;font-size:8.5px;letter-spacing:.24em;color:var(--dim)}
.lore__label{position:absolute}
.lore__label--a{top:12%;left:8%}
.lore__label--b{top:20%;right:7%}
.lore__label--c{bottom:20%;left:14%}
.lore__caption{
  position:absolute;left:16px;bottom:14px;font-size:10.5px;letter-spacing:.14em;color:var(--dim)
}
.lore__caption b{color:var(--mint);font-weight:600}

.lore__num{font-size:10px;letter-spacing:.3em;color:var(--mint);margin-bottom:14px}
.lore__text h3{font-size:clamp(24px,3vw,36px);letter-spacing:.05em;margin-bottom:20px;display:flex;align-items:baseline;gap:14px;flex-wrap:wrap}
.lore__text h3 em{font-style:normal;font-size:9.5px;letter-spacing:.3em;color:var(--dim)}
.lore__body{color:var(--ink-2);font-size:14px;line-height:2.05;margin-bottom:16px}
.lore__stats{
  display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);
  border:1px solid var(--line);margin:28px 0
}
.lore__stats li{
  background:var(--bg-2);padding:14px 16px;display:flex;flex-direction:column;gap:5px
}
.lore__stats span{font-size:10px;letter-spacing:.2em;color:var(--dim)}
.lore__stats b{font-size:15px;letter-spacing:.04em}
.lore__stats .ok{color:var(--mint)}
.lore__tabs{display:flex;flex-wrap:wrap;gap:8px}
.lore__tabs button{
  border:1px solid var(--line);padding:8px 14px;font-size:11.5px;letter-spacing:.1em;color:var(--ink-2);
  transition:.3s
}
.lore__tabs button:hover{border-color:var(--line-2);color:var(--ink)}
.lore__tabs button.is-active{background:var(--mint);color:#04120d;border-color:var(--mint);font-weight:600}

/* ---------- 影像 ---------- */
.section--media{background:#080a0c}
.media{display:grid;grid-template-columns:1.55fr 1fr;gap:clamp(12px,1.4vw,20px)}
.media__side{display:grid;gap:clamp(12px,1.4vw,20px)}
.media__card{
  position:relative;display:block;overflow:hidden;border:1px solid var(--line);
  background:#0b0f11;min-height:180px;isolation:isolate;transition:border-color .4s
}
.media__card:hover{border-color:rgba(127,240,195,.45)}
.media__card--main{min-height:min(64vw,520px)}
.media__thumb{
  position:absolute;inset:0;z-index:-1;transition:transform 1s var(--ease),filter .5s;
  background-size:cover;background-position:center
}
.media__card:hover .media__thumb{transform:scale(1.05)}
.media__thumb--a{background:
  linear-gradient(180deg,rgba(7,9,10,.16),rgba(6,9,10,.30) 55%,rgba(4,6,7,.66)),
  url("../img/media-a.svg") center/cover no-repeat}
.media__thumb--b{background:
  linear-gradient(180deg,rgba(7,9,10,.16),rgba(6,9,10,.30) 55%,rgba(4,6,7,.66)),
  url("../img/media-b.svg") center/cover no-repeat}
.media__thumb--c{background:
  linear-gradient(180deg,rgba(7,9,10,.16),rgba(6,9,10,.30) 55%,rgba(4,6,7,.66)),
  url("../img/media-c.svg") center/cover no-repeat}
.media__thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 30%,rgba(4,6,7,.92));
  pointer-events:none
}
.media__thumb::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(233,239,238,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(233,239,238,.05) 1px,transparent 1px);
  background-size:40px 40px;opacity:.5
}
.media__play{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:74px;height:74px;border-radius:50%;border:1px solid rgba(127,240,195,.6);
  display:grid;place-items:center;background:rgba(4,10,8,.35);backdrop-filter:blur(4px);
  transition:background .4s,border-color .4s,transform .5s var(--ease)
}
.media__play i{
  width:0;height:0;border-left:12px solid var(--mint);
  border-top:8px solid transparent;border-bottom:8px solid transparent;margin-left:5px
}
.media__card:hover .media__play{background:var(--mint);border-color:var(--mint);transform:translate(-50%,-50%) scale(1.08)}
.media__card:hover .media__play i{border-left-color:#04120d}
.media__play--sm{width:54px;height:54px}
.media__play--sm i{border-left-width:9px;border-top-width:6px;border-bottom-width:6px}
.media__badge{
  position:absolute;top:14px;left:14px;background:var(--hazard);color:#1a0700;
  font-size:9px;letter-spacing:.2em;font-weight:700;padding:4px 8px
}
.media__info{
  position:absolute;left:18px;right:18px;bottom:16px;display:flex;flex-direction:column;gap:5px
}
.media__info em{font-style:normal;font-size:9.5px;letter-spacing:.22em;color:var(--mint);text-transform:uppercase}
.media__info b{font-size:clamp(14px,1.5vw,19px);letter-spacing:.04em;font-weight:600;line-height:1.45}
.media__card--sm .media__info b{font-size:13.5px}
.media__time{font-style:normal;font-size:10px;color:var(--ink-2);letter-spacing:.1em}

/* ---------- 玩法 ---------- */
.section--game{
  background:
    radial-gradient(70% 60% at 90% 0%,rgba(127,240,195,.07),transparent 60%),
    #07090a
}
.game{display:grid;grid-template-columns:minmax(240px,.72fr) 1.4fr;gap:clamp(20px,3vw,44px)}
.game__tabs{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.game__tab{
  display:grid;grid-template-columns:44px 1fr auto;align-items:center;gap:12px;
  padding:20px 16px 20px 4px;border-bottom:1px solid var(--line);text-align:left;
  position:relative;transition:padding .4s var(--ease),color .3s;overflow:hidden
}
.game__tab::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:var(--mint);
  transform:scaleY(0);transform-origin:top;transition:transform .45s var(--ease)
}
.game__tab i{font-style:normal;font-size:10px;letter-spacing:.2em;color:var(--dim)}
.game__tab b{font-size:15px;font-weight:500;letter-spacing:.06em;transition:color .3s}
.game__tab span{font-size:9.5px;letter-spacing:.24em;color:var(--dim);text-transform:uppercase}
.game__tab:hover{padding-left:14px}
.game__tab:hover b{color:var(--mint)}
.game__tab.is-active{padding-left:14px;background:linear-gradient(90deg,var(--mint-dim),transparent 70%)}
.game__tab.is-active::before{transform:scaleY(1)}
.game__tab.is-active b{color:var(--ink);font-weight:700}
.game__tab.is-active i,.game__tab.is-active span{color:var(--mint)}

.game__stage{position:relative;min-height:460px;border:1px solid var(--line);overflow:hidden;background:#0a0d0f}
.game__slide{
  position:absolute;inset:0;display:grid;grid-template-columns:1fr;align-content:end;
  padding:clamp(22px,3vw,40px);opacity:0;visibility:hidden;transition:opacity .6s var(--ease),visibility .6s
}
.game__slide.is-active{opacity:1;visibility:visible}
.game__art{position:absolute;inset:0;z-index:-1;background-size:cover;transition:transform 1.2s var(--ease)}
.game__slide.is-active .game__art{transform:scale(1.02)}
.game__art::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,9,10,.15),rgba(7,9,10,.85) 62%,#07090a)
}
.game__art::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(233,239,238,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(233,239,238,.05) 1px,transparent 1px);
  background-size:52px 52px;opacity:.55;
  mask-image:linear-gradient(transparent,#000);
  -webkit-mask-image:linear-gradient(transparent,#000)
}
.game__art--a{background:linear-gradient(180deg,rgba(7,9,10,.18),rgba(7,9,10,.30) 58%,rgba(7,9,10,.72)),url("../img/game-a.svg") center/cover no-repeat}
.game__art--b{background:linear-gradient(180deg,rgba(7,9,10,.18),rgba(7,9,10,.30) 58%,rgba(7,9,10,.72)),url("../img/game-b.svg") center/cover no-repeat}
.game__art--c{background:linear-gradient(180deg,rgba(7,9,10,.18),rgba(7,9,10,.30) 58%,rgba(7,9,10,.72)),url("../img/game-c.svg") center/cover no-repeat}
.game__art--d{background:linear-gradient(180deg,rgba(7,9,10,.18),rgba(7,9,10,.30) 58%,rgba(7,9,10,.72)),url("../img/game-d.svg") center/cover no-repeat}
.game__copy{position:relative;max-width:520px}
.game__kicker{font-size:9.5px;letter-spacing:.3em;color:var(--mint);text-transform:uppercase;display:block;margin-bottom:12px}
.game__copy h3{font-size:clamp(19px,2.3vw,28px);line-height:1.5;letter-spacing:.03em;margin-bottom:14px}
.game__copy p{font-size:13.5px;line-height:2;color:var(--ink-2);margin-bottom:18px}
.game__copy ul{display:flex;flex-wrap:wrap;gap:8px}
.game__copy li{
  font-size:10.5px;letter-spacing:.1em;color:var(--ink);border:1px solid var(--line-2);
  padding:5px 10px;background:rgba(7,9,10,.5)
}

/* ---------- 公告 ---------- */
.section--notice{background:#080a0c}
.notice{border-top:1px solid var(--line-2)}
.notice li{border-bottom:1px solid var(--line)}
.notice a{
  display:grid;grid-template-columns:70px 110px 1fr 40px;align-items:center;gap:18px;
  padding:22px 8px;transition:background .4s,padding .4s var(--ease)
}
.notice a:hover{background:linear-gradient(90deg,var(--mint-dim),transparent 80%);padding-left:18px}
.notice__cat{
  font-size:9.5px;letter-spacing:.18em;color:var(--mint);border:1px solid rgba(127,240,195,.4);
  padding:3px 0;text-align:center
}
.notice__cat--warn{color:var(--hazard);border-color:rgba(255,91,46,.45)}
.notice__date{font-size:11px;letter-spacing:.14em;color:var(--dim);font-variant-numeric:tabular-nums}
.notice__title{font-size:clamp(13px,1.5vw,16px);letter-spacing:.04em;color:var(--ink);transition:color .3s}
.notice a:hover .notice__title{color:var(--mint)}
.notice__arrow{color:var(--dim);text-align:right;transition:transform .4s var(--ease),color .3s}
.notice a:hover .notice__arrow{transform:translateX(6px);color:var(--mint)}

/* ---------- CTA ---------- */
.cta{
  padding:clamp(56px,8vw,100px) 0;border-top:1px solid var(--line);
  background:
    linear-gradient(90deg,rgba(7,9,10,.95) 0%,rgba(9,13,15,.74) 46%,rgba(9,13,15,.34) 100%),
    radial-gradient(60% 120% at 88% 50%,rgba(127,240,195,.14),transparent 60%),
    url("../img/lore-station.svg") right -40px center/380px no-repeat,
    linear-gradient(90deg,#07090a,#0a0e10)
}
.cta__inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta__kicker{font-size:9.5px;letter-spacing:.34em;color:var(--mint);margin-bottom:14px}
.cta h2{font-size:clamp(20px,2.6vw,32px);line-height:1.55;letter-spacing:.03em;max-width:760px}

/* ---------- 页脚 ---------- */
.foot{background:#050708;padding:clamp(48px,6vw,80px) 0 34px;border-top:1px solid var(--line)}
.foot__top{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap;margin-bottom:40px}
.foot__mark{
  display:inline-block;font-size:26px;font-weight:800;border:1px solid var(--line-2);
  padding:10px 12px;line-height:1;margin-bottom:16px
}
.foot__mark span{color:var(--mint)}
.foot__brand p{font-size:12px;letter-spacing:.12em;color:var(--ink-2);line-height:1.9}
.foot__brand em{font-style:normal;color:var(--dim);font-size:11px}
.foot__links{display:flex;gap:clamp(30px,6vw,90px)}
.foot__links div{display:flex;flex-direction:column;gap:10px}
.foot__links b{font-size:9.5px;letter-spacing:.3em;color:var(--dim);text-transform:uppercase;margin-bottom:4px}
.foot__links a{font-size:12.5px;color:var(--ink-2);transition:color .3s}
.foot__links a:hover{color:var(--mint)}
.foot__word{
  font-size:clamp(56px,15.5vw,220px);font-weight:800;letter-spacing:.06em;line-height:.9;
  color:transparent;-webkit-text-stroke:1px rgba(233,239,238,.13);
  text-align:center;user-select:none;margin:10px 0 20px;white-space:nowrap
}
.foot__bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding-top:22px;border-top:1px solid var(--line);
  font-size:10.5px;letter-spacing:.12em;color:var(--dim)
}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .lore{grid-template-columns:1fr}
  .lore__visual{max-height:none;order:-1}
  .game{grid-template-columns:1fr}
  .game__tabs{flex-direction:row;overflow-x:auto;border-top:0;border-left:1px solid var(--line);scrollbar-width:none}
  .game__tabs::-webkit-scrollbar{display:none}
  .game__tab{
    flex:0 0 200px;grid-template-columns:1fr auto;padding:16px;border-bottom:0;border-right:1px solid var(--line)
  }
  .game__tab i{grid-column:1;font-size:9px}
  .game__tab b{grid-column:1;font-size:13.5px}
  .game__tab span{grid-column:2;grid-row:1/3}
  .game__tab:hover,.game__tab.is-active{padding-left:16px}
  .game__stage{min-height:420px}
}
@media (max-width:900px){
  .nav__menu{
    position:fixed;inset:62px 0 auto 0;z-index:899;flex-direction:column;align-items:stretch;
    gap:0;background:rgba(6,8,9,.97);backdrop-filter:blur(16px);
    padding:8px var(--pad) 24px;border-bottom:1px solid var(--line);
    transform:translateY(-120%);transition:transform .5s var(--ease)
  }
  .nav__menu.is-open{transform:none}
  .nav__menu a{padding:16px 0;border-bottom:1px solid var(--line);font-size:14px}
  .nav__burger{display:block}
  .nav__right .btn--ghost{display:none}
  .hero__side{display:none}
  .hero__scroll{display:none}
  .media{grid-template-columns:1fr}
  .media__card--main{min-height:min(72vw,420px)}
  .media__side{grid-template-columns:1fr 1fr}
  .notice a{grid-template-columns:58px 1fr 26px;gap:12px}
  .notice__date{display:none}
  .notice__cat{font-size:9px}
}
@media (max-width:620px){
  body{font-size:14px}
  .hero{padding-top:104px}
  .hero__hud{gap:14px 22px}
  .hero__hud-item{width:calc(50% - 12px)}
  .hero__title-cn{letter-spacing:.04em}
  .hero__actions .btn{flex:1 1 auto}
  .sec-head__more{position:static;display:inline-block;margin-top:16px}
  .lore__stats{grid-template-columns:1fr}
  .media__side{grid-template-columns:1fr}
  .game__stage{min-height:480px}
  .game__copy ul{gap:6px}
  .cta__inner{flex-direction:column;align-items:flex-start}
  .cta__inner .btn{width:100%}
  .foot__links{gap:36px}
}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
  .reveal{opacity:1;transform:none}
}

/* ---------- 后台可替换图片（JS 写入 --op-img / --media-img / --game-img） ---------- */
.op__visual[data-img]::before{background:
  linear-gradient(180deg,rgba(7,9,10,.52) 0%,rgba(7,9,10,.10) 44%,rgba(7,9,10,.86) 100%),
  radial-gradient(70% 55% at 50% 24%,rgba(127,240,195,.24),transparent 62%),
  var(--op-img) center 38%/cover no-repeat,
  linear-gradient(165deg,#14191c,#07090a 74%)}
.media__thumb[data-img]{background:
  linear-gradient(180deg,rgba(7,9,10,.16),rgba(6,9,10,.30) 55%,rgba(4,6,7,.66)),
  var(--media-img) center/cover no-repeat}
.game__art[data-img]{background:
  linear-gradient(180deg,rgba(7,9,10,.18),rgba(7,9,10,.30) 58%,rgba(7,9,10,.72)),
  var(--game-img) center/cover no-repeat}

/* ---------- 预约与留言 ---------- */
.section--contact{background:linear-gradient(180deg,#07090a,#0a0e10 55%,#080a0c)}
.contact{display:grid;grid-template-columns:1fr 1fr;gap:clamp(16px,2vw,28px);align-items:start}
.contact__panel{
  border:1px solid var(--line);background:var(--bg-2);
  padding:clamp(20px,2.6vw,34px);display:grid;gap:16px;align-content:start;
  position:relative;overflow:hidden
}
.contact__panel::before{
  content:"";position:absolute;top:0;left:0;width:100%;height:2px;
  background:linear-gradient(90deg,var(--mint),transparent 70%)
}
.contact__kicker{font-size:9.5px;letter-spacing:.3em;color:var(--mint)}
.contact__panel h3{font-size:clamp(18px,2vw,22px);font-weight:600;letter-spacing:.05em}
.field{display:grid;gap:7px}
.field label{font-size:10px;letter-spacing:.2em;color:var(--dim);text-transform:uppercase}
.field input,.field textarea{
  width:100%;padding:12px 14px;background:#07090a;border:1px solid var(--line);color:var(--ink);
  font-family:inherit;font-size:13.5px;letter-spacing:.02em;border-radius:0;
  transition:border-color .3s,box-shadow .3s
}
.field textarea{resize:vertical;min-height:76px;line-height:1.8}
.field input::placeholder,.field textarea::placeholder{color:#4d585c}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--mint);box-shadow:0 0 0 1px rgba(127,240,195,.28)
}
.contact__foot{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:2px}
.contact__msg{font-size:11.5px;letter-spacing:.06em;color:var(--dim);min-height:16px;line-height:1.6}
.contact__msg.is-ok{color:var(--mint)}
.contact__msg.is-error{color:var(--hazard)}
.btn[disabled]{opacity:.45;pointer-events:none}

@media (max-width:900px){
  .contact{grid-template-columns:1fr}
}

/* ---------- 资料库入口与维护横幅 ---------- */
.lore__more{
  display:inline-flex;align-items:center;gap:14px;margin-top:18px;padding-bottom:4px;
  font-size:11px;letter-spacing:.16em;color:var(--mint);
  border-bottom:1px solid rgba(127,240,195,.3);transition:border-color .3s
}
.lore__more span{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:9.5px;letter-spacing:.22em;color:var(--dim)}
.lore__more:hover{border-color:var(--mint)}
.lore__more:hover span{color:var(--mint)}

.maint-banner{
  position:fixed;left:50%;bottom:18px;transform:translateX(-50%);z-index:950;
  max-width:min(680px,92vw);padding:12px 18px;border:1px solid var(--line-2);
  background:rgba(7,9,10,.94);backdrop-filter:blur(12px);
  font-size:12px;line-height:1.7;color:var(--ink-2);
  box-shadow:0 18px 40px rgba(0,0,0,.45)
}
.maint-banner b{
  display:inline-block;margin-right:10px;font-size:9.5px;letter-spacing:.2em;color:var(--mint)
}
.maint-banner--warn{border-color:rgba(255,91,46,.45)}
.maint-banner--warn b{color:var(--hazard)}