/* ============================================================
   瑞祥电竞 · /assets/site.css
   共享外壳：reset / 变量 / 中文排版 / 页头页脚 / 通用组件
   ============================================================ */

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

:root{
  /* 矿物色与牌桌色 */
  --rock:#1B1A17;
  --rock-soft:#232019;
  --paper:#F5EFE3;
  --paper-soft:#EDE3D2;
  --ink:#171614;
  --felt:#6B1F22;
  --vermilion:#BF3B2B;
  --vermilion-deep:#A8301F;
  --gold:#D8A73F;
  --gold-lit:#F0D68A;
  --gold-ink:#8A6417;
  --cyan:#2F7E9E;
  --cyan-deep:#1E5C77;
  --cyan-soft:#8FC7DD;
  --moss:#4C5A44;
  --stone:#C9C0AE;

  /* 字体 */
  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;

  /* 度量 */
  --shell:1180px;
  --gutter:22px;
  --shadow-hard:6px 6px 0 rgba(23,22,20,.16);
  --shadow-hard-deep:8px 8px 0 rgba(23,22,20,.28);
  --ease:cubic-bezier(.22,.61,.36,1);
}

html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:96px;
}

body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}

h1,h2,h3,h4{margin:0 0 .6em;line-height:1.3;font-weight:900;letter-spacing:-.01em}
p{margin:0 0 1.1em;max-width:34em}
ul,ol{margin:0 0 1.1em;padding-left:1.2em}
img,picture,video,svg{max-width:100%;display:block}
button,input,select,textarea{font:inherit;color:inherit}
a{color:var(--cyan-deep);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--vermilion)}

:focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:2px}
::selection{background:var(--gold);color:var(--rock)}

#main-content{display:block}
#main-content:focus-visible{outline:2px solid var(--gold);outline-offset:6px}

/* ---------- 跳至主要内容 ---------- */
.skip-link{
  position:absolute;left:-9999px;top:0;z-index:200;
  background:var(--gold);color:var(--rock);
  padding:10px 18px;font-weight:700;font-size:15px;text-decoration:none;
}
.skip-link:focus,
.skip-link:focus-visible{left:12px;top:10px}

/* ---------- 通用容器与栅格 ---------- */
.shell{width:100%;max-width:var(--shell);margin:0 auto;padding:0 var(--gutter)}
.section{padding:clamp(38px,6vw,74px) 0}
.section--paper{background:var(--paper)}
.section--rock{background:var(--rock);color:var(--paper)}
.section--felt{background:var(--felt);color:var(--paper)}
.section--rock p,.section--felt p{color:rgba(245,239,227,.86)}

.grid{display:grid;gap:clamp(16px,2.4vw,28px)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--split{grid-template-columns:minmax(0,1.9fr) minmax(0,1fr)}

/* ---------- 文字建筑 ---------- */
.display{
  position:relative;
  margin:0 0 .5em;
  padding-left:24px;
  font-size:clamp(34px,7vw,66px);
  font-weight:900;
  line-height:1.08;
  letter-spacing:-.02em;
}
.display::before{
  content:"";position:absolute;left:0;top:.14em;bottom:.2em;width:12px;
  background:var(--gold);
  clip-path:polygon(0 0,100% 12px,100% 100%,0 calc(100% - 12px));
}
.display .display__mark{color:var(--gold-ink)}
.section--rock .display .display__mark{color:var(--gold-lit)}

.heading{
  position:relative;
  padding-left:16px;
  font-size:clamp(22px,3.2vw,31px);
  font-weight:700;
  line-height:1.35;
}
.heading::before{
  content:"";position:absolute;left:0;top:.42em;width:3px;height:1.05em;
  background:var(--gold);
}
.heading--cyan::before{background:var(--cyan)}

.section-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:10px 16px;margin-bottom:22px}
.section-head__eyebrow{
  margin:0;max-width:none;
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.16em;
  color:var(--moss);
}
.section-head__title{margin:0;font-size:clamp(24px,3.4vw,34px);font-weight:900}
.section--rock .section-head__eyebrow{color:var(--cyan-soft)}
.section--rock .section-head__title{color:var(--paper)}

.lead{font-size:19px;line-height:1.8;color:#3A3730}
.section--rock .lead,.section--felt .lead{color:rgba(245,239,227,.88)}

.mono{
  font-family:var(--font-mono);
  font-size:14px;
  letter-spacing:.06em;
  color:var(--cyan-deep);
}
.mono--gold{color:var(--gold-ink)}
.section--rock .mono,.section--felt .mono{color:var(--cyan-soft)}
.section--rock .mono--gold,.section--felt .mono--gold{color:var(--gold-lit)}

.num{
  display:block;
  font-family:var(--font-mono);
  font-size:clamp(28px,4.4vw,46px);
  line-height:1.1;
  letter-spacing:.02em;
  color:var(--gold-ink);
}
.section--rock .num,.section--felt .num{color:var(--gold-lit)}

.anno{
  margin:0 0 1em;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.2em;
  color:var(--moss);
  writing-mode:vertical-rl;
  text-orientation:mixed;
  max-width:none;
}
.anno--rot{
  writing-mode:horizontal-tb;
  transform:rotate(-90deg);
  transform-origin:left top;
  white-space:nowrap;
}
.section--rock .anno{color:var(--cyan-soft)}

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

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;
  border:2px solid var(--ink);
  background:transparent;color:var(--ink);
  font-size:15px;font-weight:700;line-height:1.2;letter-spacing:.02em;
  text-decoration:none;cursor:pointer;
  transition:transform .16s var(--ease),box-shadow .16s var(--ease),background-color .16s var(--ease),color .16s var(--ease),border-color .16s var(--ease);
}
.btn:hover{transform:translate(-2px,-2px);box-shadow:4px 4px 0 rgba(23,22,20,.28);color:var(--ink)}
.btn--primary{
  background:var(--vermilion);border-color:var(--vermilion);color:var(--paper);
  box-shadow:4px 4px 0 rgba(216,167,63,.42);
}
.btn--primary:hover{background:var(--vermilion-deep);border-color:var(--vermilion-deep);color:#FFF7E9}
.btn--ghost{border-color:var(--gold);color:var(--gold-lit);background:transparent}
.btn--ghost:hover{background:rgba(216,167,63,.14);color:var(--gold-lit)}
.btn--cyan{background:var(--cyan);border-color:var(--cyan);color:#F4FBFE}
.btn--cyan:hover{background:var(--cyan-deep);border-color:var(--cyan-deep);color:#F4FBFE}

/* ---------- 资料卡与标签 ---------- */
.card{
  position:relative;
  padding:22px 22px 20px;
  background:#FFFDF7;
  border:2px solid var(--ink);
  box-shadow:var(--shadow-hard);
}
.card--archive{border-left:10px solid var(--gold)}
.card--cyan{border-left:10px solid var(--cyan)}
.card--felt{border-left:10px solid var(--felt)}
.card__label{
  display:inline-block;
  padding:2px 8px;
  background:var(--stone);color:var(--ink);
  border:1px solid var(--ink);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;
}
.card__title{margin:12px 0 8px;font-size:20px;font-weight:900}
.card__body{margin:0;font-size:16px;color:#3A3730;max-width:34em}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 9px;
  border:1px solid currentColor;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;
  color:var(--cyan-deep);background:rgba(47,126,158,.1);
}
.tag--gold{color:var(--gold-ink);background:rgba(216,167,63,.16)}
.tag--cyan{color:var(--cyan-deep);background:rgba(47,126,158,.12)}
.tag--felt{color:var(--felt);background:rgba(107,31,34,.1)}
.section--rock .tag{color:var(--gold-lit);background:rgba(216,167,63,.14)}

/* ---------- 影像容器（页面阶段放置图片） ---------- */
.media-frame{
  position:relative;
  margin:0;
  overflow:hidden;
  border:2px solid var(--ink);
  background:linear-gradient(160deg,#2C2721 0%,#15130F 100%);
  box-shadow:var(--shadow-hard);
}
.media-frame::before{
  content:"";position:absolute;inset:0;z-index:0;
  background-image:repeating-linear-gradient(115deg,rgba(216,167,63,.10) 0 1px,transparent 1px 9px);
  opacity:.6;
}
.media-frame__img{
  position:relative;z-index:1;
  width:100%;height:100%;
  object-fit:cover;
}
.media-frame__cap{
  position:absolute;left:0;right:0;bottom:0;z-index:2;
  padding:8px 12px;
  background:rgba(27,26,23,.82);
  color:var(--gold-lit);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;
}
.media-frame__glow{
  position:absolute;inset:0;z-index:3;pointer-events:none;
  background:linear-gradient(115deg,transparent 32%,rgba(240,214,138,.24) 50%,transparent 68%);
  transform:translateX(-62%);
  transition:transform .5s var(--ease);
}
.media-frame:hover .media-frame__glow{transform:translateX(62%)}
.media-frame--wide{aspect-ratio:16/9}
.media-frame--tall{aspect-ratio:3/4}
.media-frame--square{aspect-ratio:1/1}
.media-frame--band{aspect-ratio:21/9}

/* ---------- 表格 / 分隔 / 面包屑 ---------- */
.fact-table{
  width:100%;
  border-collapse:collapse;
  background:#FFFDF7;
  border:2px solid var(--ink);
  box-shadow:var(--shadow-hard);
  font-size:15.5px;
}
.fact-table caption{
  padding:0 0 10px;text-align:left;
  font-family:var(--font-mono);font-size:13px;letter-spacing:.1em;color:var(--moss);
}
.fact-table th,.fact-table td{padding:11px 14px;border-bottom:1px solid var(--stone);text-align:left;vertical-align:top}
.fact-table thead th{
  background:var(--felt);color:var(--paper);
  font-family:var(--font-mono);font-size:13px;letter-spacing:.08em;
  border-bottom-color:var(--felt);
}
.fact-table tbody tr:nth-child(even){background:rgba(201,192,174,.2)}
.fact-table td.is-key{color:var(--gold-ink);font-weight:700}

.rule{height:2px;margin:26px 0;border:0;background:var(--stone)}
.rule--gold{height:3px;background:linear-gradient(90deg,var(--gold),rgba(216,167,63,0))}

.breadcrumbs{
  padding:16px 0 0;
  font-family:var(--font-mono);font-size:13px;letter-spacing:.06em;color:var(--moss);
}
.breadcrumbs ol{display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0;list-style:none}
.breadcrumbs li+li::before{content:"/";margin-right:8px;color:var(--stone)}
.breadcrumbs a{color:var(--cyan-deep);text-decoration:none}
.breadcrumbs a:hover{color:var(--vermilion);text-decoration:underline}
.breadcrumbs [aria-current="page"]{color:var(--ink)}

/* ============================================================
   页头：居中刊头 + 鎏金细线导航 + 收缩吸顶
   ============================================================ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--rock);
  color:var(--paper);
  border-bottom:2px solid var(--gold);
  transition:box-shadow .24s var(--ease);
}
.site-header[data-shrunk="true"]{box-shadow:0 12px 28px rgba(0,0,0,.38)}

.header-inner{width:100%;max-width:var(--shell);margin:0 auto;padding:0 var(--gutter)}

.masthead{
  display:flex;flex-direction:column;align-items:center;gap:4px;
  padding:20px 0 14px;
  transition:padding .24s var(--ease);
}
.site-header[data-shrunk="true"] .masthead{padding:8px 0 6px}

.brand{display:inline-flex;align-items:center;gap:12px;color:var(--paper);text-decoration:none}
.brand:hover{color:var(--gold-lit)}
.brand-mark{
  position:relative;flex:none;
  width:16px;height:16px;
  background:var(--vermilion);
  clip-path:polygon(0 0,100% 0,100% 68%,68% 100%,0 100%);
}
.brand-mark::after{
  content:"";position:absolute;inset:3px 4px;
  background:repeating-linear-gradient(to bottom,var(--gold-lit) 0 1px,transparent 1px 4px);
}
.brand-name{
  font-size:clamp(24px,3.4vw,34px);
  font-weight:900;line-height:1;letter-spacing:.06em;
  transition:font-size .24s var(--ease);
}
.site-header[data-shrunk="true"] .brand-name{font-size:22px}

.brand-tagline{
  margin:0;max-width:none;
  max-height:24px;overflow:hidden;
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.14em;
  color:var(--cyan-soft);
  transition:max-height .24s var(--ease),opacity .18s var(--ease);
}
.site-header[data-shrunk="true"] .brand-tagline{max-height:0;opacity:0}

.nav-bar{
  position:relative;
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:16px;
  padding:9px 0 11px;
  border-top:1px solid rgba(216,167,63,.34);
}

.nav-toggle{
  display:none;align-items:center;gap:8px;
  padding:8px 12px;
  background:transparent;color:var(--paper);
  border:2px solid var(--gold);
  font-size:14px;font-weight:700;cursor:pointer;
  justify-self:start;
}
.nav-toggle__bars{position:relative;display:block;width:18px;height:2px;background:var(--gold-lit)}
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--gold-lit);
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.nav-toggle__bars::before{top:-6px}
.nav-toggle__bars::after{top:6px}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars{background:transparent}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{transform:translateY(-6px) rotate(-45deg)}
.nav-toggle__text{letter-spacing:.08em}

.site-nav{display:flex;justify-content:center;grid-column:2}
.nav-list{display:flex;align-items:center;gap:clamp(14px,2.4vw,30px);margin:0;padding:0;list-style:none}
.nav-item{display:block}
.nav-link{
  position:relative;display:inline-block;
  padding:6px 2px;
  color:var(--paper);font-size:16px;font-weight:700;letter-spacing:.02em;
  text-decoration:none;
  transition:color .18s var(--ease);
}
.nav-link:hover{color:var(--gold-lit)}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:3px;
  background:var(--gold);
  transform:scaleX(0);transform-origin:0 50%;
  transition:transform .2s var(--ease);
}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link[aria-current="page"]{color:var(--gold-lit)}
.nav-link[aria-current="page"]::after{transform:scaleX(1)}
.nav-link__count{
  display:none;
  margin-left:10px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;
  color:var(--cyan-soft);
}

.nav-cta{grid-column:3;justify-self:end}

.scroll-progress{
  position:absolute;left:0;right:0;bottom:0;height:3px;
  background:linear-gradient(90deg,var(--gold),var(--gold-lit));
  transform:scaleX(0);transform-origin:0 50%;
  transition:transform .12s linear;
  pointer-events:none;
}

/* ============================================================
   页脚：岩灰档案底 + 四栏短标签
   ============================================================ */
.site-footer{
  position:relative;
  margin-top:0;
  padding:clamp(34px,5vw,58px) 0 22px;
  background:var(--rock);
  color:var(--paper);
  border-top:2px solid var(--gold);
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:6px;
  background:repeating-linear-gradient(90deg,var(--gold-lit) 0 4px,transparent 4px 14px);
  opacity:.32;
}
.footer-inner{width:100%;max-width:var(--shell);margin:0 auto;padding:0 var(--gutter)}

.footer-brand{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  padding-bottom:20px;
  border-bottom:1px solid rgba(201,192,174,.22);
}
.footer-brand__name{font-size:22px;font-weight:900;letter-spacing:.08em;color:var(--paper)}
.footer-brand__meta{
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.08em;
  color:var(--cyan-soft);
}

.footer-cols{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
  padding:26px 0;
}
.footer-col{min-width:0}
.footer-col__title{
  margin:0 0 12px;
  font-family:var(--font-mono);font-size:12px;font-weight:700;letter-spacing:.2em;
  color:var(--gold-lit);
}
.footer-list{
  display:flex;flex-direction:column;gap:8px;
  margin:0;padding:0;list-style:none;
  font-size:14.5px;line-height:1.65;color:#DDD6C6;
}
.footer-list--plain{color:#C8C1B1}
.footer-link{
  color:var(--paper);text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .16s var(--ease),border-color .16s var(--ease);
}
.footer-link:hover{color:var(--gold-lit);border-bottom-color:var(--gold)}
.footer-link--cta{color:var(--gold-lit);font-weight:700;border-bottom:1px solid var(--gold)}
.footer-link--cta:hover{color:var(--gold)}
.footer-mail{
  font-family:var(--font-mono);font-size:13px;letter-spacing:.02em;
  color:var(--cyan-soft);word-break:break-all;
}

.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding-top:18px;
  border-top:1px solid rgba(201,192,174,.22);
}
.footer-legal{
  margin:0;max-width:none;
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.08em;
  color:#B8B1A1;
}

/* ---------- 返回顶部（由 site.js 注入） ---------- */
.to-top{
  position:fixed;right:18px;bottom:18px;z-index:70;
  display:none;align-items:center;justify-content:center;
  width:52px;height:46px;
  background:var(--rock);color:var(--gold-lit);
  border:2px solid var(--gold);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;
  cursor:pointer;
}
.to-top[data-visible="true"]{display:flex}
.to-top:hover{background:var(--felt)}

/* ---------- 入场显现 ---------- */
.has-js [data-reveal]{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .32s var(--ease),transform .32s var(--ease);
  transition-delay:var(--reveal-delay,0ms);
}
.has-js [data-reveal].is-visible{opacity:1;transform:none}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width:1024px){
  :root{--gutter:20px}
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media (max-width:900px){
  .grid--2,.grid--3,.grid--split{grid-template-columns:minmax(0,1fr)}
  .footer-cols{grid-template-columns:repeat(2,minmax(0,1fr))}

  .nav-bar{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:10px;
  }
  .nav-toggle{display:inline-flex}
  .nav-cta{margin-left:auto}

  .site-nav{
    position:absolute;
    left:calc(var(--gutter) * -1);
    right:calc(var(--gutter) * -1);
    top:100%;
    display:none;
    padding:6px var(--gutter) 14px;
    background:var(--rock);
    border-top:1px solid rgba(216,167,63,.4);
    border-bottom:2px solid var(--gold);
    box-shadow:0 20px 32px rgba(0,0,0,.46);
  }
  .site-nav[data-open="true"]{display:block}
  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-item{border-bottom:1px solid rgba(201,192,174,.16)}
  .nav-item:last-child{border-bottom:0}
  .nav-link{
    display:flex;align-items:center;justify-content:space-between;
    padding:14px 2px;
    font-size:17px;
  }
  .nav-link::after{display:none}
  .nav-link[aria-current="page"]{
    color:var(--gold-lit);
    padding-left:12px;
    border-left:3px solid var(--gold);
  }
  .nav-link__count{display:inline-block}
}

@media (max-width:560px){
  body{font-size:16.5px}
  :root{--gutter:16px}
  .footer-cols{grid-template-columns:minmax(0,1fr);gap:20px}
  .display{padding-left:18px}
  .display::before{width:9px}
  .to-top{right:12px;bottom:12px}
}

/* ---------- 降低动效偏好 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.15s !important;
    transition-delay:0ms !important;
  }
  .has-js [data-reveal]{opacity:1;transform:none;transition:opacity .15s linear !important}
  .media-frame__glow{display:none}
  .btn:hover{transform:none;box-shadow:none}
  .to-top{transition:none}
}