/* ============================================================
   星力电玩中国站 · 共享样式 /assets/site.css
   侧边轨道 + 堆叠画板 + 暖纸内容层
   ============================================================ */

:root{
  --ink-void:#060A12;
  --ink-panel:#0E1728;
  --ink-deep:#111827;
  --paper:#F3E9D2;
  --paper-hi:#FBF4E4;
  --cyan:#45F3E4;
  --violet:#9B6CFF;
  --amber:#FFB454;
  --mist:#8FA3BF;
  --ice:#E8F1FF;
  --glass:rgba(69,243,228,.12);
  --alert:#FF6B81;

  --rail-w:248px;
  --radius-lg:20px;
  --radius-md:14px;
  --radius-sm:10px;

  --font-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --ease:cubic-bezier(.22,.8,.3,1);
}

*,*::before,*::after{box-sizing:border-box}

html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
}

body{
  margin:0;
  padding-left:var(--rail-w);
  min-height:100vh;
  background-color:var(--ink-void);
  background-image:
    repeating-linear-gradient(180deg,rgba(232,241,255,.022) 0 1px,transparent 1px 4px),
    radial-gradient(900px 520px at 88% -8%,rgba(155,108,255,.18),transparent 62%),
    radial-gradient(760px 460px at 4% 90%,rgba(69,243,228,.12),transparent 66%);
  color:var(--ice);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.75;
  letter-spacing:.01em;
  font-weight:400;
}

img,svg,video{max-width:100%}
img{display:block}
button,input,select,textarea{font:inherit;color:inherit}
a{color:var(--cyan)}

h1,h2,h3,h4{
  margin:0;
  font-weight:900;
  line-height:1.18;
  letter-spacing:.07em;
  text-wrap:balance;
  color:var(--ice);
}
h1{font-size:clamp(40px,6vw,76px);letter-spacing:.08em}
h2{font-size:clamp(28px,3.4vw,44px);letter-spacing:.08em}
h3{font-size:clamp(19px,2vw,24px);letter-spacing:.06em}
h4{font-size:17px;letter-spacing:.06em}

p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}

ul,ol{margin:0 0 1.2em;padding-left:1.3em}

::selection{background:var(--cyan);color:#04191A}

a:focus-visible,
button:focus-visible,
[tabindex]:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:3px;
  border-radius:var(--radius-sm);
}

#main-content{scroll-margin-top:84px}

/* ---------- 工具类 ---------- */
.wrap{
  width:min(100% - 48px,1140px);
  margin-inline:auto;
}

.stack{display:flex;flex-direction:column;gap:clamp(28px,5vw,72px)}
.stack--tight{gap:clamp(16px,2.4vw,28px)}

.mono{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  letter-spacing:.02em;
}

.visually-hidden{
  position:absolute;
  width:1px;height:1px;
  margin:-1px;padding:0;
  overflow:hidden;
  clip:rect(0 0 0 0);
  clip-path:inset(50%);
  white-space:nowrap;
  border:0;
}

/* ---------- 跳转链接 ---------- */
.skip-link{
  position:fixed;
  top:10px;left:10px;
  z-index:400;
  padding:11px 20px;
  border-radius:var(--radius-sm);
  background:var(--cyan);
  color:#04191A;
  font-weight:800;
  font-size:14px;
  letter-spacing:.08em;
  text-decoration:none;
  transform:translateY(-180%);
  transition:transform .22s var(--ease);
}
.skip-link:focus{transform:translateY(0)}

/* ---------- 滚动进度条 ---------- */
.scroll-progress{
  position:fixed;
  top:0;
  left:var(--rail-w);
  right:0;
  height:2px;
  z-index:300;
  background:rgba(143,163,191,.16);
  pointer-events:none;
}
.scroll-progress span{
  display:block;
  height:100%;
  width:100%;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:linear-gradient(90deg,var(--cyan),var(--violet) 58%,var(--amber));
}

/* ============================================================
   侧边轨道头部
   ============================================================ */
.site-header{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--rail-w);
  z-index:80;
  display:flex;
  flex-direction:column;
  padding:26px 20px 22px;
  background:linear-gradient(180deg,#0E1728 0%,#0A111E 54%,#060A12 100%);
  border-right:1px solid rgba(69,243,228,.20);
  box-shadow:20px 0 48px -34px rgba(69,243,228,.55);
  overflow-y:auto;
  overflow-x:hidden;
}

.brand{
  display:block;
  padding:0 2px 16px;
  border-bottom:1px solid rgba(143,163,191,.22);
  text-decoration:none;
}
.brand::before{
  content:"";
  display:block;
  width:34px;height:3px;
  margin-bottom:13px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--cyan),var(--violet));
}
.brand-mark{
  display:block;
  font-size:23px;
  font-weight:900;
  letter-spacing:.14em;
  line-height:1;
  color:var(--ice);
  background:linear-gradient(94deg,var(--ice) 12%,var(--cyan) 62%,var(--violet) 100%);
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
}
.brand-tag{
  display:block;
  margin-top:10px;
  font-family:var(--font-mono);
  font-size:10.5px;
  line-height:1.6;
  letter-spacing:.08em;
  color:var(--mist);
}

/* 移动端开关 */
.nav-toggle{
  display:none;
  align-items:center;
  gap:9px;
  padding:9px 15px;
  border-radius:999px;
  border:1px solid rgba(69,243,228,.42);
  background:rgba(69,243,228,.10);
  color:var(--cyan);
  font-size:13px;
  font-weight:800;
  letter-spacing:.12em;
  cursor:pointer;
  transition:background .18s,border-color .18s,color .18s;
}
.nav-toggle:hover{background:rgba(69,243,228,.18);border-color:var(--cyan)}
.nav-toggle-bars{display:inline-flex;flex-direction:column;gap:4px}
.nav-toggle-bars i{
  display:block;
  width:16px;height:2px;
  border-radius:1px;
  background:currentColor;
  transition:transform .26s var(--ease),opacity .2s;
}
.nav-toggle-text{line-height:1}

/* 导航 */
.site-nav{
  display:flex;
  flex-direction:column;
  flex:1;
  margin-top:26px;
}
.nav-list{
  list-style:none;
  margin:0;padding:0;
  display:flex;
  flex-direction:column;
  gap:2px;
}
.nav-item{list-style:none}
.nav-link{
  display:flex;
  align-items:baseline;
  gap:10px;
  padding:11px 12px;
  border-left:2px solid transparent;
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:var(--mist);
  font-size:15px;
  font-weight:800;
  letter-spacing:.09em;
  text-decoration:none;
  transition:background .18s,color .18s,border-color .18s,transform .18s var(--ease);
}
.nav-link:hover{
  background:rgba(232,241,255,.05);
  border-left-color:rgba(69,243,228,.5);
  color:var(--ice);
  transform:translateX(2px);
}
.nav-link[aria-current="page"]{
  background:var(--glass);
  border-left-color:var(--cyan);
  color:var(--cyan);
}
.nav-index{
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:600;
  letter-spacing:.04em;
  color:var(--violet);
  min-width:18px;
}
.nav-link[aria-current="page"] .nav-index{color:var(--cyan)}
.nav-label{line-height:1.4}

.rail-actions{
  margin-top:auto;
  padding-top:24px;
  display:grid;
  gap:9px;
}
.rail-file{
  margin:8px 0 0;
  font-family:var(--font-mono);
  font-size:10.5px;
  line-height:1.7;
  letter-spacing:.05em;
  color:rgba(143,163,191,.85);
}

.nav-scrim{display:none}

/* ============================================================
   按钮
   ============================================================ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:9px;
  padding:13px 24px;
  border:1px solid transparent;
  border-radius:999px;
  font-family:inherit;
  font-size:15px;
  font-weight:800;
  letter-spacing:.09em;
  line-height:1.2;
  text-decoration:none;
  cursor:pointer;
  transition:transform .18s var(--ease),background .18s,border-color .18s,color .18s,box-shadow .18s;
}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0)}

.btn--amber{
  background:var(--amber);
  color:#1A1004;
  box-shadow:0 12px 28px -16px rgba(255,180,84,.95);
}
.btn--amber:hover{background:#FFC778;box-shadow:0 14px 30px -14px rgba(255,180,84,1)}

.btn--cyan{background:var(--cyan);color:#04191A}

.btn--ghost{
  background:rgba(232,241,255,.04);
  border-color:rgba(232,241,255,.28);
  color:var(--ice);
}
.btn--ghost:hover{border-color:var(--cyan);color:var(--cyan);background:rgba(69,243,228,.10)}

.btn--ink{
  background:var(--ink-deep);
  color:var(--paper-hi);
  box-shadow:0 12px 26px -18px rgba(17,24,39,.95);
}
.btn--ink:hover{background:#1B2740}

.btn--sm{padding:10px 16px;font-size:13px;letter-spacing:.08em;border-radius:var(--radius-sm)}

/* ============================================================
   通用版式组件
   ============================================================ */
.kicker{
  display:inline-flex;
  align-items:center;
  gap:10px;
  margin:0 0 14px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--cyan);
}
.kicker::before{
  content:"";
  width:26px;height:1px;
  background:currentColor;
}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  border-radius:6px;
  border:1px solid rgba(69,243,228,.45);
  background:rgba(69,243,228,.08);
  color:var(--cyan);
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.06em;
  line-height:1.5;
}
.tag--violet{border-color:rgba(155,108,255,.5);background:rgba(155,108,255,.12);color:#C9AEFF}
.tag--amber{border-color:rgba(255,180,84,.55);background:rgba(255,180,84,.12);color:var(--amber)}
.tag--alert{border-color:rgba(255,107,129,.5);background:rgba(255,107,129,.12);color:var(--alert)}

.rule{
  height:1px;
  border:0;
  margin:0;
  background:linear-gradient(90deg,rgba(69,243,228,.55),rgba(155,108,255,.32),transparent);
}
.ticks{display:flex;gap:6px}
.ticks i{display:block;width:2px;height:10px;background:rgba(143,163,191,.42)}

.panel{
  position:relative;
  padding:clamp(24px,3.4vw,44px);
  border:1px solid rgba(143,163,191,.22);
  border-radius:var(--radius-lg);
  background:var(--ink-panel);
}
.panel--paper{
  background:var(--paper);
  border-color:rgba(17,24,39,.14);
  color:rgba(17,24,39,.9);
  box-shadow:0 26px 60px -48px rgba(0,0,0,.9);
}
.panel--paper h2,
.panel--paper h3,
.panel--paper h4{color:var(--ink-deep)}
.panel--paper a{color:#0B5F62}
.panel--paper .kicker{color:#0B5F62}
.panel--glass{
  background:var(--glass);
  border-color:rgba(69,243,228,.32);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
}

.prose{max-width:72ch;color:rgba(232,241,255,.86)}
.prose--ink{color:rgba(17,24,39,.86)}

.grid{display:grid;gap:clamp(16px,2vw,28px)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--auto{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}

/* 面包屑 */
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding:20px 0;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.05em;
  color:var(--mist);
}
.crumb a{
  color:var(--mist);
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .18s,border-color .18s;
}
.crumb a:hover{color:var(--cyan);border-bottom-color:rgba(69,243,228,.7)}
.crumb .crumb-sep{color:rgba(143,163,191,.55)}
.crumb [aria-current="page"]{color:var(--ice)}

/* 图片容器基础规则 */
.media-frame{
  position:relative;
  isolation:isolate;
  overflow:hidden;
  aspect-ratio:16 / 10;
  border:1px solid rgba(69,243,228,.22);
  border-radius:var(--radius-md);
  background:
    radial-gradient(420px 260px at 78% 12%,rgba(155,108,255,.34),transparent 66%),
    linear-gradient(142deg,#0E1728 0%,#060A12 62%,#151A2E 100%);
}
.media-frame img,
.media-frame svg{
  display:block;
  width:100%;
  height:100%;
  object-fit:cover;
}
.media-frame::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  opacity:.55;
  background:repeating-linear-gradient(180deg,rgba(69,243,228,.12) 0 1px,transparent 1px 4px);
  mix-blend-mode:screen;
}
.media-frame--wide{aspect-ratio:21 / 9}
.media-frame--tall{aspect-ratio:4 / 5}
.media-frame--paper{
  background:
    radial-gradient(360px 220px at 20% 10%,rgba(69,243,228,.24),transparent 70%),
    linear-gradient(150deg,var(--paper-hi),var(--paper));
  border-color:rgba(17,24,39,.16);
}

/* 滚动显现 */
.js [data-reveal]{
  opacity:0;
  transform:translateY(16px);
  transition:opacity .62s ease,transform .62s var(--ease);
}
.js [data-reveal].is-in{opacity:1;transform:none}

/* ============================================================
   页脚
   ============================================================ */
.site-footer{
  position:relative;
  margin-top:clamp(48px,8vw,120px);
  background:linear-gradient(180deg,#0A111E 0%,#060A12 100%);
  border-top:1px solid rgba(69,243,228,.22);
}

.footer-strip{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:clamp(20px,3vw,30px) clamp(20px,4vw,52px);
  background:var(--paper);
  color:var(--ink-deep);
  border-bottom:1px solid rgba(17,24,39,.14);
}
.footer-strip-text{
  margin:0;
  max-width:52ch;
  font-size:clamp(15px,1.6vw,18px);
  font-weight:800;
  line-height:1.55;
  letter-spacing:.04em;
}

.footer-body{
  display:grid;
  grid-template-columns:1.05fr .72fr .72fr 1.45fr;
  gap:clamp(24px,3.2vw,48px);
  width:min(100%,1320px);
  margin-inline:auto;
  padding:clamp(34px,5vw,64px) clamp(20px,4vw,52px);
}

.footer-brand{min-width:0}
.footer-mark{
  margin:0 0 12px;
  font-size:clamp(20px,2.2vw,26px);
  font-weight:900;
  letter-spacing:.14em;
  color:var(--ice);
}
.footer-mark::before{
  content:"";
  display:block;
  width:30px;height:3px;
  margin-bottom:13px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--cyan),var(--violet));
}
.footer-note{
  margin:0;
  font-size:13.5px;
  line-height:1.75;
  letter-spacing:.04em;
  color:var(--mist);
  max-width:40ch;
}
.footer-version{
  margin:16px 0 0;
  font-size:11.5px;
  letter-spacing:.16em;
  color:rgba(143,163,191,.8);
}

.footer-col{min-width:0}
.footer-col-title{
  margin:0 0 16px;
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:600;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--cyan);
}
.footer-links{
  list-style:none;
  margin:0;padding:0;
  display:grid;
  gap:3px;
}
.footer-links a{
  display:inline-block;
  padding:5px 0;
  font-size:15px;
  color:rgba(232,241,255,.78);
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .18s,border-color .18s;
}
.footer-links a:hover{color:var(--cyan);border-bottom-color:rgba(69,243,228,.65)}

.footer-contact{min-width:0}
.footer-kv{
  margin:0;
  display:grid;
  gap:12px;
}
.footer-kv-row{display:grid;gap:2px}
.footer-kv dt{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.18em;
  color:rgba(143,163,191,.85);
}
.footer-kv dd{
  margin:0;
  font-size:14.5px;
  line-height:1.65;
  color:var(--ice);
  word-break:break-word;
}
.footer-contact .footer-note{
  margin-top:16px;
  padding-top:13px;
  border-top:1px dashed rgba(143,163,191,.3);
  max-width:44ch;
}

.footer-legal{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px 26px;
  padding:18px clamp(20px,4vw,52px);
  border-top:1px solid rgba(143,163,191,.16);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:rgba(143,163,191,.9);
}
.footer-legal-copy{margin:0}
.footer-legal-links{display:flex;gap:20px}
.footer-legal-links a{
  color:rgba(232,241,255,.78);
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .18s,border-color .18s;
}
.footer-legal-links a:hover{color:var(--cyan);border-bottom-color:rgba(69,243,228,.7)}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width:1080px){
  .footer-body{grid-template-columns:1fr 1fr}
  .footer-contact{grid-column:1 / -1}
}

@media (max-width:1023px){
  body{padding-left:0;padding-top:64px}
  .scroll-progress{left:0}

  .site-header{
    top:0;bottom:auto;left:0;right:0;
    width:auto;height:64px;
    flex-direction:row;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    padding:0 16px;
    overflow:visible;
    border-right:0;
    border-bottom:1px solid rgba(69,243,228,.24);
    box-shadow:0 16px 36px -28px rgba(69,243,228,.7);
  }

  .brand{padding:0;border-bottom:0;display:flex;flex-direction:column;gap:2px}
  .brand::before{display:none}
  .brand-mark{font-size:18px;letter-spacing:.12em}
  .brand-tag{margin:0;font-size:9.5px;letter-spacing:.06em}

  .nav-toggle{display:inline-flex}
  .site-header[data-open] .nav-toggle{border-color:var(--amber);color:var(--amber);background:rgba(255,180,84,.12)}
  .site-header[data-open] .nav-toggle-bars i:nth-child(1){transform:translateY(6px) rotate(45deg)}
  .site-header[data-open] .nav-toggle-bars i:nth-child(2){opacity:0}
  .site-header[data-open] .nav-toggle-bars i:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

  .site-nav{
    position:fixed;
    top:64px;left:0;bottom:0;
    width:min(84vw,336px);
    margin:0;
    padding:24px 20px 36px;
    overflow-y:auto;
    background:linear-gradient(170deg,#0E1728 0%,#060A12 78%);
    border-right:1px solid rgba(69,243,228,.26);
    transform:translateX(-104%);
    visibility:hidden;
    z-index:120;
    transition:transform .34s var(--ease),visibility .34s;
  }
  .site-header[data-open] .site-nav{transform:translateX(0);visibility:visible}

  .nav-scrim{
    display:block;
    position:fixed;
    inset:64px 0 0 0;
    z-index:110;
    background:rgba(6,10,18,.74);
    -webkit-backdrop-filter:blur(3px);
    backdrop-filter:blur(3px);
    opacity:0;
    pointer-events:none;
    transition:opacity .3s;
  }
  .site-header[data-open] .nav-scrim{opacity:1;pointer-events:auto}

  .nav-list{gap:4px}
  .nav-link{font-size:16px;padding:14px 12px}
  .rail-actions{margin-top:26px;padding-top:22px;border-top:1px solid rgba(143,163,191,.2)}
  .rail-file{font-size:10px}

  .grid--2,.grid--3{grid-template-columns:1fr}
}

@media (max-width:700px){
  body{font-size:16px}
  .wrap{width:calc(100% - 32px)}
  .footer-body{grid-template-columns:1fr;gap:30px}
  .footer-strip{flex-direction:column;align-items:flex-start}
  .footer-legal{flex-direction:column;align-items:flex-start}
  .btn{padding:12px 20px;font-size:14px}
  .btn--sm{padding:10px 15px;font-size:13px}
}

/* ============================================================
   动效偏好与打印
   ============================================================ */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .js [data-reveal]{opacity:1;transform:none;transition:none}
  .scroll-progress span{transition:none}
}

@media print{
  .site-header,.scroll-progress,.skip-link,.nav-scrim,.footer-strip{display:none}
  body{padding-left:0;background:#fff;color:#111}
}