/* ==========================================================
   九娱乐会馆 · 共享样式表 /assets/site.css
   夜间机房运维面板 · 墨底 + 朱砂 + 信号青绿
   ========================================================== */

/* ---------- 01 变量与基础 ---------- */
:root{
  --ink-900:#0B0D0E;
  --ink-800:#14181A;
  --ink-700:#1B2023;
  --graphite:#232A2D;
  --graphite-soft:rgba(35,42,45,.6);
  --cinnabar:#C8322A;
  --cinnabar-soft:#E4635A;
  --signal:#35E0C0;
  --signal-dim:rgba(53,224,192,.38);
  --amber:#E8B23A;
  --paper:#EDE6DA;
  --text:#E6E9E7;
  --muted:#8C9694;

  --shell:1320px;
  --gutter:clamp(16px,3.2vw,44px);
  --step:clamp(38px,6vw,86px);
  --line:1px solid var(--graphite);
  --shadow-hard:8px 8px 0 rgba(0,0,0,.6);
  --radius:2px;

  --font-display:"Source Han Sans SC","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,"Noto Sans Mono CJK SC","Microsoft YaHei",monospace;
}

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

html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:120px;
}

body{
  margin:0;
  background:var(--ink-900);
  color:var(--text);
  font-family:var(--font-mono);
  font-size:15px;
  line-height:1.75;
  font-variant-numeric:tabular-nums;
  letter-spacing:.01em;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}

img,svg,video{max-width:100%;display:block}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0 0 .9em}
p:last-child{margin-bottom:0}

a{
  color:var(--text);
  text-decoration:none;
  transition:color .18s ease,border-color .18s ease,background-color .18s ease,transform .18s ease;
}
a:hover{color:var(--cinnabar-soft)}

button,input{font:inherit;color:inherit}
button{cursor:pointer}

:focus-visible{
  outline:2px solid var(--signal);
  outline-offset:3px;
}

[hidden]{display:none !important}

::selection{background:var(--cinnabar);color:#fff}

/* ---------- 02 中文排版 ---------- */
h1,h2,h3,h4,h5,h6{
  font-family:var(--font-display);
  font-weight:900;
  line-height:1.14;
  letter-spacing:-.01em;
  color:var(--paper);
  margin:0 0 .5em;
  text-wrap:balance;
}
h1{font-size:clamp(32px,5.4vw,64px)}
h2{font-size:clamp(24px,3.2vw,40px)}
h3{font-size:clamp(18px,2vw,24px)}
h4{font-size:17px}
p,li{text-wrap:pretty;word-break:break-word}

.prose{max-width:68ch;font-size:15px}
.prose p{margin-bottom:1em}
.lead{font-size:clamp(15px,1.4vw,18px);color:var(--paper)}
.muted{color:var(--muted);font-size:12.5px;line-height:1.7}
.num{
  color:var(--signal);
  font-variant-numeric:tabular-nums;
  font-weight:600;
}

/* ---------- 03 骨架与栅格 ---------- */
.shell{
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.section{padding-block:var(--step)}
.section--tint{
  background:var(--ink-800);
  border-block:var(--line);
}
.section-head{margin-bottom:clamp(20px,3vw,40px);max-width:74ch}
.section-kicker{
  display:inline-block;
  font-size:11.5px;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--signal);
  margin:0 0 10px;
}
.section-title{margin:0}
.rule{
  height:1px;
  background:var(--graphite);
  border:0;
  margin:clamp(20px,3vw,36px) 0;
}

.grid{display:grid;gap:clamp(14px,2vw,24px)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--4{grid-template-columns:repeat(4,minmax(0,1fr))}

.split{
  display:grid;
  grid-template-columns:minmax(0,.42fr) minmax(0,1fr);
  gap:clamp(20px,3.4vw,56px);
  align-items:start;
}

.rail-label{
  writing-mode:vertical-rl;
  transform:rotate(180deg);
  font-size:11px;
  letter-spacing:.3em;
  color:var(--muted);
  text-transform:uppercase;
  border-left:1px solid var(--graphite);
  padding-left:8px;
}

/* ---------- 04 跳过链接 ---------- */
.skip-link{
  position:absolute;
  left:var(--gutter);
  top:-80px;
  z-index:200;
  background:var(--paper);
  color:var(--ink-900);
  font-weight:700;
  font-size:13px;
  padding:10px 16px;
  border:2px solid var(--cinnabar);
  transition:top .18s ease;
}
.skip-link:focus{top:12px;color:var(--ink-900)}

/* ---------- 05 头部 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:120;
  background:var(--ink-900);
  border-bottom:var(--line);
  box-shadow:0 1px 0 rgba(0,0,0,.7);
}
.header-inner{
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:var(--gutter);
}

/* 上层品牌条 */
.header-brandbar{
  display:flex;
  align-items:center;
  gap:clamp(14px,2vw,30px);
  padding-block:13px;
  border-bottom:var(--line);
}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{
  width:12px;
  height:28px;
  background:var(--cinnabar);
  box-shadow:5px 0 0 var(--signal);
  flex:0 0 auto;
}
.brand-text{display:block}
.brand-name{
  display:block;
  font-family:var(--font-display);
  font-weight:900;
  font-size:19px;
  letter-spacing:.02em;
  color:var(--paper);
  line-height:1.2;
}
.brand:hover .brand-name{color:var(--cinnabar-soft)}
.brand-sub{
  display:block;
  font-size:11.5px;
  letter-spacing:.18em;
  color:var(--muted);
}
.header-status{
  display:flex;
  align-items:center;
  gap:9px;
  margin:0;
  font-size:12px;
  color:var(--muted);
  white-space:nowrap;
}
.status-dot{
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--signal);
  box-shadow:0 0 0 3px var(--signal-dim);
  animation:breathe 2.4s ease-in-out infinite;
  flex:0 0 auto;
}
@keyframes breathe{
  0%,100%{opacity:1}
  50%{opacity:.32}
}
.header-quick{margin-left:auto;display:flex;gap:8px;flex-wrap:wrap}
.quick-link{
  font-size:12.5px;
  padding:7px 12px;
  border:1px solid var(--graphite);
  background:var(--ink-800);
  color:var(--text);
  white-space:nowrap;
}
.quick-link:hover{
  border-color:var(--cinnabar);
  color:var(--paper);
  transform:translateY(-1px);
}

/* 移动导航按钮 */
.nav-toggle{
  display:none;
  align-items:center;
  gap:8px;
  margin-left:auto;
  background:var(--ink-800);
  border:1px solid var(--graphite);
  color:var(--paper);
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.1em;
  padding:9px 13px;
}
.nav-toggle:hover{border-color:var(--cinnabar)}
.nav-toggle-bars{
  width:16px;
  height:10px;
  background:linear-gradient(
    to bottom,
    currentColor 0 2px, transparent 2px 4px,
    currentColor 4px 6px, transparent 6px 8px,
    currentColor 8px 10px
  );
}
.site-header[data-open] .nav-toggle{
  border-color:var(--cinnabar);
  color:var(--cinnabar-soft);
}

/* 下层栏目条 */
.header-navbar{
  display:flex;
  align-items:stretch;
  justify-content:space-between;
  gap:20px;
}
.site-nav{flex:1 1 auto;min-width:0}
.nav-list{display:flex;flex-wrap:wrap}
.nav-list li{border-right:var(--line)}
.nav-list li:first-child{border-left:var(--line)}
.nav-list a{
  display:block;
  padding:14px clamp(10px,1.4vw,20px);
  font-size:14px;
  border-bottom:2px solid transparent;
  white-space:nowrap;
}
.nav-list a:hover{
  background:var(--ink-800);
  color:var(--cinnabar-soft);
}
.nav-list a[aria-current="page"]{
  background:var(--ink-800);
  color:var(--paper);
  font-weight:700;
  border-bottom-color:var(--cinnabar);
}

/* 头部检索 */
.header-search{
  display:flex;
  align-items:center;
  gap:10px;
  padding-block:9px;
  flex:0 0 auto;
}
.search-label{
  font-size:11.5px;
  letter-spacing:.2em;
  color:var(--muted);
  text-transform:uppercase;
}
.search-input{
  width:clamp(158px,20vw,236px);
  background:var(--ink-800);
  border:1px solid var(--graphite);
  color:var(--text);
  font-family:var(--font-mono);
  font-size:13px;
  padding:8px 10px;
}
.search-input::placeholder{color:var(--muted);font-size:12px}
.search-input:focus{
  outline:none;
  border-color:var(--signal);
  box-shadow:0 0 0 1px var(--signal);
}
.search-hint{
  font-size:11.5px;
  color:var(--muted);
  white-space:nowrap;
}

/* ---------- 06 页脚 ---------- */
.site-footer{
  margin-top:var(--step);
  background:var(--ink-800);
  border-top:3px solid var(--graphite);
  color:var(--text);
}
.footer-inner{
  max-width:var(--shell);
  margin-inline:auto;
  padding:clamp(32px,5vw,64px) var(--gutter) 26px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.35fr 1fr 1fr 1.5fr;
  gap:clamp(20px,3vw,48px);
  padding-bottom:clamp(24px,3vw,38px);
  border-bottom:var(--line);
}
.footer-logo{
  font-family:var(--font-display);
  font-weight:900;
  font-size:22px;
  color:var(--paper);
  margin:0;
}
.footer-tag{
  font-size:12.5px;
  letter-spacing:.16em;
  color:var(--cinnabar-soft);
  margin:8px 0 14px;
}
.footer-note{
  color:var(--muted);
  font-size:12.5px;
  line-height:1.75;
  max-width:34ch;
}
.footer-col-title{
  font-family:var(--font-display);
  font-size:12.5px;
  font-weight:900;
  letter-spacing:.22em;
  color:var(--muted);
  margin:0 0 14px;
}
.footer-col ul{display:grid;gap:9px}
.footer-col a{
  font-size:13.5px;
  border-bottom:1px solid transparent;
  padding-bottom:1px;
}
.footer-col a:hover{
  color:var(--cinnabar-soft);
  border-bottom-color:var(--cinnabar);
}
.footer-contact li{
  color:var(--muted);
  font-size:12.5px;
  line-height:1.72;
}
.footer-service{
  margin-top:6px;
  padding-top:10px;
  border-top:var(--line);
  color:var(--muted);
}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:10px 28px;
  justify-content:space-between;
  align-items:center;
  padding-top:20px;
  font-size:12px;
  color:var(--muted);
}
.footer-bottom p{margin:0}
.footer-legal{color:var(--muted)}

/* ---------- 07 通用组件 ---------- */
.panel{
  background:var(--ink-800);
  border:1px solid var(--graphite);
  box-shadow:var(--shadow-hard);
  padding:clamp(16px,2.4vw,28px);
  transition:border-color .18s ease,transform .18s ease;
}
.panel:hover{border-color:var(--cinnabar);transform:translate(-1px,-1px)}
.panel-head{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  gap:10px 16px;
  padding-bottom:12px;
  margin-bottom:14px;
  border-bottom:var(--line);
}
.panel-title{
  font-family:var(--font-display);
  font-weight:900;
  font-size:17px;
  color:var(--paper);
  margin:0;
}
.panel-meta{
  font-size:11.5px;
  color:var(--muted);
  letter-spacing:.1em;
  margin-left:auto;
}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:11.5px;
  letter-spacing:.08em;
  padding:3px 8px;
  border:1px solid var(--graphite);
  color:var(--muted);
  background:var(--ink-700);
}
.tag--ok{color:var(--signal);border-color:var(--signal-dim);background:rgba(53,224,192,.06)}
.tag--warn{color:var(--amber);border-color:rgba(232,178,58,.4);background:rgba(232,178,58,.06)}
.tag--hot{color:var(--cinnabar-soft);border-color:rgba(200,50,42,.5);background:rgba(200,50,42,.08)}

.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:11px 18px;
  border:1px solid var(--graphite);
  background:var(--ink-800);
  color:var(--paper);
  font-family:var(--font-mono);
  font-size:13.5px;
  line-height:1.2;
  transition:transform .18s ease,border-color .18s ease,background-color .18s ease,color .18s ease;
}
.btn:hover{
  border-color:var(--cinnabar);
  color:var(--paper);
  transform:translateY(-1px);
}
.btn--primary{
  background:var(--cinnabar);
  border-color:var(--cinnabar);
  color:#FFF6F5;
  font-weight:700;
}
.btn--primary:hover{
  background:var(--cinnabar-soft);
  border-color:var(--cinnabar-soft);
  color:#FFF6F5;
}
.btn--ghost{background:transparent}
.btn-row{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:18px;
}

.crumbs{
  padding-block:14px;
  border-bottom:var(--line);
  margin-bottom:clamp(20px,3vw,36px);
}
.crumbs-list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:12px;
  color:var(--muted);
}
.crumbs-list li::after{
  content:"/";
  margin-left:8px;
  color:var(--graphite);
}
.crumbs-list li:last-child::after{content:"";margin:0}
.crumbs-current{color:var(--signal)}

.link-more{
  display:inline-block;
  font-size:13px;
  color:var(--paper);
  border-bottom:1px solid var(--cinnabar);
  padding-bottom:2px;
}
.link-more:hover{color:var(--cinnabar-soft)}

.filter-empty{
  border:1px dashed var(--graphite);
  padding:18px;
  color:var(--muted);
  font-size:13px;
}

/* ---------- 08 图片容器（页面阶段使用） ---------- */
.media-frame{
  position:relative;
  overflow:hidden;
  background:var(--ink-800);
  border:1px solid var(--graphite);
  border-radius:var(--radius);
}
.media-frame img{
  width:100%;
  height:100%;
  object-fit:cover;
  filter:saturate(.86) contrast(1.04);
}
.media-frame--wide{aspect-ratio:16/9}
.media-frame--tall{aspect-ratio:4/3}
.media-frame--square{aspect-ratio:1/1}
.media-caption{
  display:block;
  margin-top:8px;
  font-size:11.5px;
  letter-spacing:.06em;
  color:var(--muted);
}

/* ---------- 09 动效协议 ---------- */
.js [data-reveal]{
  opacity:0;
  transform:translateY(12px);
}
[data-reveal]{
  transition:opacity .22s ease,transform .22s ease;
}
[data-reveal].is-visible{
  opacity:1;
  transform:none;
}
.scroll-progress{
  position:fixed;
  top:0;
  left:0;
  height:2px;
  width:0;
  background:var(--signal);
  z-index:200;
  pointer-events:none;
  transition:width .12s linear;
}

/* ---------- 10 响应式 ---------- */
@media (max-width:1120px){
  .nav-list a{padding:13px 12px;font-size:13.5px}
  .search-hint{display:none}
}
@media (max-width:960px){
  .nav-toggle{display:inline-flex}
  .header-quick{display:none}
  .header-navbar{
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding-bottom:14px;
  }
  .site-header[data-open] .header-navbar{display:flex}
  .nav-list{flex-direction:column}
  .nav-list li,
  .nav-list li:first-child{
    border-left:0;
    border-right:0;
    border-bottom:var(--line);
  }
  .nav-list li:first-child{border-top:var(--line)}
  .nav-list a{padding:14px 14px}
  .nav-list a[aria-current="page"]{
    border-bottom-color:var(--cinnabar);
    box-shadow:inset 3px 0 0 var(--cinnabar);
  }
  .header-search{
    flex-wrap:wrap;
    gap:8px;
    padding-block:14px 0;
  }
  .search-input{width:100%;flex:1 1 100%}
  .split{grid-template-columns:minmax(0,1fr)}
  .grid--3,.grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .rail-label{writing-mode:horizontal-tb;transform:none}
}
@media (max-width:760px){
  .header-status{display:none}
}
@media (max-width:620px){
  .grid--2,.grid--3,.grid--4{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .panel-meta{margin-left:0}
}

/* ---------- 11 降低动效 ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,
  *::before,
  *::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .status-dot{animation:none}
  .js [data-reveal],
  [data-reveal]{opacity:1 !important;transform:none !important}
  .scroll-progress{display:none}
}