/* 九州挂机修仙录 官网 —— 墨蓝宣纸 / 天青 · 紫气 · 金丹（标准件复用自 p003.coltgame.cn） */

:root{
  --ink:#f3efe6;
  --ink-dim:#bfb8a8;
  --ink-mute:#8c8474;
  --bg:#10131c;
  --bg-2:#151a26;
  --bg-3:#1b2130;
  --line:rgba(196,178,140,.18);
  --aqua:#6ec8ff;
  --aqua-2:#a8e2ff;
  --deep:#b48cff;
  --sand:#f2c94c;
  --coral:#e0655a;
  --tap:#3fb9a2;

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font:400 16px/1.75 var(--font-cn);
  letter-spacing:.01em;
  overflow-x:hidden;
  background-image:
    radial-gradient(1100px 620px at 78% -8%, rgba(110,200,255,.16), transparent 62%),
    radial-gradient(760px 520px at 6% 22%, rgba(180,140,255,.13), transparent 60%);
  background-repeat:no-repeat;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3{margin:0;line-height:1.25;font-weight:800;letter-spacing:.02em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:22px}

.skip{position:fixed;left:-9999px;top:8px;z-index:100;background:var(--aqua-2);color:#0d1520;padding:10px 16px;border-radius:8px;font-weight:700}
.skip:focus{left:8px}
:focus-visible{outline:2px solid var(--aqua-2);outline-offset:3px;border-radius:6px}

/* ---------- header ---------- */
.site-head{
  position:fixed;inset:0 0 auto;z-index:50;height:var(--head-h);
  display:flex;align-items:center;
  background:linear-gradient(180deg,rgba(16,19,28,.92),rgba(16,19,28,.55));
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid transparent;
  transition:border-color .3s,background .3s;
}
.site-head.stuck{border-bottom-color:var(--line);background:rgba(13,16,24,.94)}
.head-in{display:flex;align-items:center;gap:20px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;letter-spacing:.06em}
.brand-icon{border-radius:9px;box-shadow:0 0 0 1px var(--line),0 6px 18px -8px rgba(110,200,255,.6)}
.nav{margin-left:auto;display:flex;gap:4px}
.nav a{
  padding:8px 13px;border-radius:999px;font-size:14.5px;color:var(--ink-dim);
  transition:color .2s,background .2s;
}
.nav a:hover{color:var(--aqua-2);background:rgba(110,200,255,.10)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:9px;justify-content:center;
  font-weight:800;letter-spacing:.04em;border-radius:999px;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s cubic-bezier(.2,.8,.3,1),box-shadow .18s,filter .18s;
}
.btn-lg{padding:15px 30px;font-size:16.5px}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-tap{
  background:linear-gradient(135deg,var(--tap),#2c8f7d);color:#04150f;
  box-shadow:0 14px 34px -14px rgba(63,185,162,.75);
}
.btn-tap:hover{transform:translateY(-2px);filter:brightness(1.07)}
.btn-tap:active{transform:translateY(0)}
.tap-mark{width:9px;height:9px;border-radius:50%;background:currentColor;box-shadow:0 0 0 3px rgba(4,21,15,.22)}

/* ---------- hero ---------- */
.hero{position:relative;padding:calc(var(--head-h) + 76px) 0 84px;overflow:hidden}
.hero-art{position:absolute;inset:-12% -6% auto auto;width:min(62%,720px);z-index:0;
  -webkit-mask-image:radial-gradient(closest-side,#000 42%,transparent 78%);
          mask-image:radial-gradient(closest-side,#000 42%,transparent 78%);
  opacity:.62;filter:saturate(112%) contrast(104%);
}
.hero-art::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,var(--bg) 6%,rgba(16,19,28,.35) 46%,transparent 72%)}
.hero-in{position:relative;z-index:1;max-width:820px}
.eyebrow{font-size:13px;letter-spacing:.26em;color:var(--aqua);font-weight:700;margin-bottom:18px}
.hero h1{font-family:var(--font-dis);font-weight:900;font-size:clamp(34px,6.4vw,62px);line-height:1.2;letter-spacing:.012em;text-wrap:balance}
.hero h1 em{font-style:normal;background:linear-gradient(180deg,var(--aqua-2),var(--deep) 92%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  filter:drop-shadow(0 0 30px rgba(110,200,255,.32))}
.lede{margin-top:22px;max-width:620px;color:var(--ink-dim);font-size:clamp(15.5px,1.7vw,18px)}
.cta-row{margin-top:34px;display:flex;flex-wrap:wrap;align-items:center;gap:14px 18px}
.cta-note{font-size:13px;color:var(--ink-mute);max-width:280px;line-height:1.6}
.facts{margin:52px 0 0;display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.facts>div{background:rgba(21,26,38,.9);padding:18px 20px}
.facts dt{font-size:12px;letter-spacing:.16em;color:var(--ink-mute)}
.facts dd{margin:6px 0 0;font-size:20px;font-weight:800;color:var(--aqua-2)}
.facts dd small{display:block;font-size:12px;font-weight:400;color:var(--ink-mute);letter-spacing:0}

/* ---------- sections ---------- */
.band{padding:92px 0;border-top:1px solid var(--line)}
.band.alt{background:
  radial-gradient(680px 420px at 88% 10%, rgba(180,140,255,.12), transparent 65%),
  var(--bg-2)}
.sec-title{font-family:var(--font-dis);font-weight:900;font-size:clamp(25px,3.6vw,38px);letter-spacing:.015em}
.sec-sub{margin-top:12px;max-width:640px;color:var(--ink-dim)}
.grid{margin-top:46px;display:grid;gap:18px}
.grid-4{grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}
.grid-3{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.card,.link-card,.shot-card{
  background:linear-gradient(170deg,var(--bg-3),rgba(20,25,37,.72));
  border:1px solid var(--line);border-radius:var(--radius);
}
.card{padding:26px 24px 28px;position:relative;overflow:hidden}
.card::after{content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,transparent,var(--aqua),transparent);opacity:0;transition:opacity .3s}
.card:hover::after{opacity:.85}
.card-num{font-family:var(--font-dis);font-size:13px;letter-spacing:.2em;color:var(--coral);font-weight:700}
.card h3{margin-top:10px;font-size:22px;letter-spacing:.1em}
.card p{margin-top:12px;color:var(--ink-dim);font-size:15px}
.link-card{padding:26px 24px 24px;display:flex;flex-direction:column;transition:transform .2s,border-color .2s}
.link-card:hover{transform:translateY(-4px);border-color:rgba(110,200,255,.42)}
.link-card h3{font-size:20px}
.link-card p{margin-top:10px;color:var(--ink-dim);font-size:15px;flex:1}
.go{margin-top:18px;font-size:14px;font-weight:800;color:var(--aqua)}
.note{margin-top:26px;font-size:13.5px;color:var(--ink-mute)}

/* split + attrs */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.attrs{margin-top:30px;display:grid;grid-template-columns:repeat(auto-fill,minmax(122px,1fr));gap:9px}
.attrs li{display:flex;align-items:baseline;gap:10px;padding:11px 14px;border-radius:12px;
  background:rgba(16,19,28,.66);border-left:3px solid var(--c,var(--aqua))}
.attrs b{color:var(--ink);font-size:15px;letter-spacing:.04em;font-weight:700}
.attrs span{color:var(--ink-mute);font-size:12.5px}

/* shots + gallery */
.shot-card{margin:0;overflow:hidden;position:relative;display:block;text-align:left;color:inherit}
.shot-card img{width:100%;aspect-ratio:9/16;object-fit:cover;transition:transform .5s cubic-bezier(.2,.8,.3,1)}
.shot-card.wide img{aspect-ratio:1/1;object-fit:cover}
.shot-card figcaption{padding:14px 18px;font-size:13.5px;color:var(--ink-mute);border-top:1px solid var(--line);background:rgba(16,19,28,.55)}
button.shot-card{cursor:zoom-in}
button.shot-card:hover img{transform:scale(1.045)}
.gallery{margin-top:46px;display:grid;grid-template-columns:repeat(3,1fr);gap:18px}

/* timeline */
.timeline{margin-top:46px;display:grid;grid-template-columns:repeat(auto-fit,minmax(215px,1fr));gap:18px}
.timeline li{position:relative;padding:26px 22px 28px;border:1px solid var(--line);border-radius:var(--radius);
  background:linear-gradient(170deg,var(--bg-3),rgba(20,25,37,.7))}
.timeline li::before{content:"";position:absolute;top:0;left:22px;right:22px;height:1px;background:linear-gradient(90deg,var(--coral),transparent)}
.lv{display:inline-block;font-family:var(--font-dis);font-size:13px;letter-spacing:.14em;font-weight:800;
  color:#0d1520;background:var(--aqua);padding:4px 11px;border-radius:999px}
.timeline h3{margin-top:14px;font-size:19px}
.timeline p{margin-top:10px;font-size:14.5px;color:var(--ink-dim)}

/* final cta */
.final{background:
  radial-gradient(700px 380px at 50% 120%, rgba(110,200,255,.20), transparent 70%),
  var(--bg-2);
  text-align:center;padding:100px 0 108px}
.final-in{display:grid;justify-items:center;gap:16px}
.final h2{font-family:var(--font-dis);font-weight:900;font-size:clamp(27px,4.4vw,44px);letter-spacing:.015em}
.final p{color:var(--ink-dim);max-width:520px}
.alt-route{font-size:14px;color:var(--ink-mute)}
.alt-route b{color:var(--aqua-2);font-weight:800;letter-spacing:.06em}

/* footer */
.site-foot{border-top:1px solid var(--line);padding:52px 0 26px;background:#0b0e15}
.foot-in{display:grid;grid-template-columns:1fr 1.15fr;gap:40px}
.site-foot p{font-size:13.5px;color:var(--ink-mute);margin-top:8px}
.site-foot a{color:var(--ink-dim);text-decoration:underline;text-underline-offset:3px}
.site-foot a:hover{color:var(--aqua-2)}
.foot-brand{display:flex;align-items:center;gap:9px;font-weight:800;font-size:15.5px;color:var(--ink);letter-spacing:.06em}
.foot-brand img{border-radius:7px}
.foot-advice{border-left:1px solid var(--line);padding-left:22px}
.foot-advice p:first-child{margin-top:0;color:var(--ink-dim);line-height:2}
.copy{margin-top:34px;padding-top:18px;border-top:1px solid rgba(196,178,140,.09);font-size:12.5px;color:#6f6a5c}

/* lightbox */
.lightbox{position:fixed;inset:0;z-index:90;display:grid;place-items:center;padding:24px;
  background:rgba(7,9,14,.94);backdrop-filter:blur(6px)}
.lightbox[hidden]{display:none}
.lightbox img{max-height:84vh;width:auto;border-radius:12px;box-shadow:var(--shadow)}
.lightbox figure{margin:0;text-align:center}
.lightbox figcaption{margin-top:14px;font-size:14px;color:var(--ink-dim)}
.lb-close{position:absolute;top:18px;right:20px;width:44px;height:44px;border-radius:50%;
  border:1px solid var(--line);background:rgba(27,33,48,.9);color:var(--ink);font-size:24px;line-height:1;cursor:pointer}
.lb-close:hover{background:var(--aqua);color:#0d1520}

/* reveal —— 默认完全可见，进入视口时才播放入场动画；观察器失效也不会隐藏内容 */
@keyframes rise{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:none}}
html.anim .reveal.in{animation:rise .7s cubic-bezier(.2,.7,.3,1) both}

/* ---------- responsive ---------- */
@media (max-width:900px){
  .split{grid-template-columns:1fr;gap:34px}
  .foot-in{grid-template-columns:1fr;gap:24px}
  .foot-advice{border-left:0;padding-left:0;border-top:1px solid var(--line);padding-top:20px}
  .gallery{grid-template-columns:repeat(2,1fr)}
  .hero-art{width:96%;inset:auto -18% -14% auto;opacity:.3}
}
@media (max-width:720px){
  .nav{display:none}
  .band{padding:68px 0}
  .hero{padding-top:calc(var(--head-h) + 46px)}
  .facts{margin-top:38px}
  .head-in{gap:12px}
  .brand-name{font-size:15.5px}
}
@media (max-width:520px){
  .gallery{grid-template-columns:1fr}
  .shot-card img{aspect-ratio:9/16}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important}
  html.anim .reveal.in{animation:none}
}