/* ==========================================================================
   星光赛场 STARLIGHT ARENA — 共享样式 /assets/site.css
   夜空深蓝基底 · 星光金灯光 · 粗野主义边框 · 编辑部版式
   ========================================================================== */

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

:root{
  --night:#0A1428;
  --stand:#101E3C;
  --line:#1B2C4E;
  --gold:#F2C14E;
  --gold-soft:#FFE3A3;
  --red:#E23E57;
  --terrace:#3F7D5C;
  --mist:#7FB6B0;
  --white:#F5F7FA;
  --fog:#8A97B1;

  --ink-1:var(--white);
  --ink-2:#C4CEDF;
  --ink-3:var(--fog);

  --shell:1220px;
  --gutter:clamp(16px,4vw,48px);
  --gap:clamp(16px,2.4vw,32px);

  --shadow-hard:10px 10px 0 rgba(0,0,0,.55);
  --shadow-soft:0 24px 60px rgba(0,0,0,.5);
  --ease:cubic-bezier(.22,.75,.28,1);

  --font-body:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans CN","Noto Sans CJK SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-data:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
}

/* ---------- reset ---------- */
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  min-height:100vh;
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.8;
  color:var(--ink-2);
  background-color:var(--night);
  background-image:
    radial-gradient(1.4px 1.4px at 14% 12%,rgba(245,247,250,.55),transparent 62%),
    radial-gradient(1.4px 1.4px at 72% 6%,rgba(255,227,163,.6),transparent 62%),
    radial-gradient(1.2px 1.2px at 88% 26%,rgba(127,182,176,.55),transparent 62%),
    radial-gradient(1.2px 1.2px at 34% 46%,rgba(245,247,250,.35),transparent 62%),
    radial-gradient(1.4px 1.4px at 58% 74%,rgba(255,227,163,.28),transparent 62%),
    linear-gradient(180deg,#0A1428 0%,#0C1832 48%,#0A1428 100%);
  background-repeat:no-repeat;
  background-attachment:fixed;
  overflow-x:hidden;
}
img,svg,video{max-width:100%;height:auto;}
ul,ol{margin:0 0 1.2em;padding-left:1.15em;}
li::marker{color:var(--gold);}
button{font:inherit;}

::selection{background:var(--gold);color:#0A1428;}

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

/* ---------- 中文排版 ---------- */
h1,h2,h3,h4,h5,h6{
  margin:0 0 .55em;
  color:var(--ink-1);
  font-weight:800;
  line-height:1.14;
  letter-spacing:-.01em;
  word-break:break-word;
}
h1{font-size:clamp(38px,7vw,96px);font-weight:900;letter-spacing:-.03em;line-height:1.02;}
h2{font-size:clamp(26px,4vw,46px);font-weight:900;letter-spacing:-.02em;}
h3{font-size:clamp(20px,2.4vw,28px);font-weight:700;}
h4{font-size:clamp(17px,1.6vw,20px);font-weight:700;}
p{margin:0 0 1.1em;}
a{color:var(--gold);text-decoration:none;}
a:hover{color:var(--gold-soft);}
strong,b{color:var(--ink-1);font-weight:700;}
small{font-size:.85em;}
hr{border:0;height:1px;background:var(--line);margin:2.4em 0;}

.muted{color:var(--ink-3);}
.data{font-family:var(--font-data);font-size:13px;letter-spacing:.05em;color:var(--mist);word-break:break-word;}
.lede{font-size:clamp(17px,1.6vw,20px);line-height:1.85;color:var(--ink-2);max-width:64ch;}
.divider{height:1px;background:linear-gradient(90deg,var(--line),rgba(27,44,78,0));border:0;margin:0;}

/* ---------- 布局容器 ---------- */
.shell{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:var(--gutter);}
.site-main{display:block;}
.prose{max-width:72ch;}
.prose h2{margin-top:1.7em;}
.prose h3{margin-top:1.4em;}
.prose ul,.prose ol{padding-left:1.2em;}
.prose li{margin-bottom:.5em;}

/* ---------- 跳过链接 ---------- */
.skip-link{
  position:absolute;left:50%;top:-120px;transform:translateX(-50%);
  z-index:200;padding:10px 18px;
  background:var(--gold);color:#0A1428;
  font-family:var(--font-data);font-size:12px;letter-spacing:.12em;
  transition:top .18s var(--ease);
}
.skip-link:focus{top:8px;color:#0A1428;}

/* ==========================================================================
   页头：居中杂志报头
   ========================================================================== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:linear-gradient(180deg,rgba(10,20,40,.98),rgba(12,24,50,.93));
  border-bottom:1px solid var(--line);
  box-shadow:0 20px 46px rgba(0,0,0,.5);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
}

.read-progress{
  position:absolute;left:0;right:0;bottom:0;height:2px;
  background:rgba(27,44,78,.85);
}
.read-progress__bar{
  display:block;height:100%;width:100%;
  background:linear-gradient(90deg,var(--gold),var(--red));
  transform:scaleX(0);transform-origin:left center;
  transition:transform .1s linear;
}

.header-rail{border-bottom:1px solid var(--line);background:rgba(16,30,60,.5);}
.header-rail__inner{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:36px;
  font-family:var(--font-data);font-size:11px;letter-spacing:.1em;color:var(--ink-3);
}
.header-rail__meta{display:flex;align-items:center;gap:10px;margin:0;color:var(--ink-3);}
.status-lamp{
  width:7px;height:7px;flex:0 0 auto;border-radius:50%;
  background:var(--gold);box-shadow:0 0 0 3px rgba(242,193,78,.16);
  animation:lamp 3.4s var(--ease) infinite;
}
@keyframes lamp{
  0%,100%{opacity:.45;box-shadow:0 0 0 3px rgba(242,193,78,.1);}
  45%{opacity:1;box-shadow:0 0 0 6px rgba(242,193,78,.05);}
}
.header-rail__cta{
  color:var(--gold);
  border-bottom:1px solid rgba(242,193,78,.45);
  padding-bottom:2px;white-space:nowrap;
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.header-rail__cta:hover{color:var(--gold-soft);border-color:var(--gold-soft);}

.masthead{
  display:flex;flex-direction:column;align-items:center;gap:8px;
  padding-block:22px 18px;text-align:center;
  transition:padding .28s var(--ease);
}
.brand{display:flex;flex-direction:column;align-items:center;gap:6px;color:var(--ink-1);}
.brand__name{
  display:block;
  font-size:clamp(28px,5.4vw,50px);
  font-weight:900;line-height:1;
  letter-spacing:.2em;text-indent:.2em;
  color:var(--white);
  transition:font-size .28s var(--ease),letter-spacing .28s var(--ease),color .2s var(--ease);
}
.brand__name::after{
  content:"";display:block;height:3px;margin:10px auto 0;
  width:min(140px,32vw);
  background:linear-gradient(90deg,transparent,var(--gold),transparent);
  transition:width .28s var(--ease),height .28s var(--ease);
}
.brand:hover .brand__name{color:var(--gold-soft);}
.brand__domain{
  font-family:var(--font-data);font-size:11px;letter-spacing:.22em;color:var(--ink-3);
}
.masthead__tagline{
  margin:0;font-size:12px;font-weight:600;
  letter-spacing:.4em;text-indent:.4em;color:var(--gold);
}

/* 滚动收窄 */
.site-header[data-condensed] .header-rail{display:none;}
.site-header[data-condensed] .masthead{padding-block:10px 6px;gap:0;}
.site-header[data-condensed] .brand__name{font-size:clamp(20px,2.6vw,26px);letter-spacing:.16em;text-indent:.16em;}
.site-header[data-condensed] .brand__name::after{height:2px;margin-top:6px;width:min(92px,24vw);}
.site-header[data-condensed] .brand__domain{display:none;}
.site-header[data-condensed] .masthead__tagline{display:none;}
.site-header[data-condensed] .navwrap__inner{min-height:44px;}

/* 栏目条 */
.navwrap{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(16,30,60,.55),rgba(10,20,40,.3));
}
.navwrap__inner{
  position:relative;display:flex;align-items:center;justify-content:center;
  min-height:52px;
}
.site-nav{width:100%;}
.nav-list{
  counter-reset:nav;
  list-style:none;display:flex;align-items:center;justify-content:center;flex-wrap:wrap;
  gap:clamp(4px,2vw,26px);margin:0;padding:0;
}
.nav-list>li{counter-increment:nav;}
.nav-list a{
  position:relative;display:inline-flex;align-items:baseline;gap:7px;
  padding:10px 2px;
  color:var(--ink-2);font-size:15px;font-weight:600;letter-spacing:.04em;
  transition:color .18s var(--ease);
}
.nav-list a::before{
  content:counter(nav,decimal-leading-zero);
  font-family:var(--font-data);font-size:10px;letter-spacing:.06em;
  color:var(--gold);opacity:.55;transition:opacity .18s var(--ease);
}
.nav-list a::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;
  background:var(--gold);transform:scaleX(0);transform-origin:left center;
  transition:transform .22s var(--ease);
}
.nav-list a:hover,.nav-list a:focus-visible{color:var(--white);}
.nav-list a:hover::after{transform:scaleX(1);}
.nav-list a[aria-current="page"]{color:var(--gold);}
.nav-list a[aria-current="page"]::before{opacity:1;}
.nav-list a[aria-current="page"]::after{transform:scaleX(1);}

.nav-toggle{
  display:none;align-items:center;gap:10px;
  background:transparent;border:1px solid var(--line);color:var(--white);
  padding:9px 12px;
  font-family:var(--font-data);font-size:11px;letter-spacing:.14em;
  cursor:pointer;
  transition:border-color .18s var(--ease),color .18s var(--ease);
}
.nav-toggle:hover{border-color:var(--gold);color:var(--gold-soft);}
.nav-toggle__bars{position:relative;display:block;width:18px;height:2px;background:var(--gold);transition:background .18s var(--ease);}
.nav-toggle__bars::before,.nav-toggle__bars::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--gold);
  transition:transform .22s var(--ease),top .22s 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{top:0;transform:rotate(45deg);}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{top:0;transform:rotate(-45deg);}

/* ==========================================================================
   通用组件
   ========================================================================== */
.section{
  position:relative;
  padding-block:clamp(48px,8vw,108px);
  border-top:1px solid var(--line);
}
.section--flush{border-top:0;}
.section--stand{background:linear-gradient(180deg,rgba(16,30,60,.85),rgba(10,20,40,.4));}

.section__label{
  display:flex;align-items:center;gap:12px;
  margin:0 0 18px;
  font-family:var(--font-data);font-size:11px;letter-spacing:.22em;
  color:var(--ink-3);
}
.section__label::after{content:"";flex:1 1 auto;height:1px;background:var(--line);}

.exhibit{
  display:inline-flex;align-items:center;gap:9px;
  padding:7px 11px;
  border:1px solid var(--line);
  background:rgba(27,44,78,.45);
  color:var(--mist);
  font-family:var(--font-data);font-size:11px;letter-spacing:.18em;
}
.exhibit__num{color:var(--gold);font-weight:700;}

.chapter{
  position:relative;
  display:grid;grid-template-columns:96px minmax(0,1fr);
  gap:clamp(16px,3vw,40px);
}
.chapter__rail{align-self:start;position:sticky;top:168px;}
.chapter__num{
  display:block;
  font-family:var(--font-data);font-size:12px;letter-spacing:.16em;
  color:var(--ink-3);
  transition:color .22s var(--ease);
}
.chapter__rule{
  height:2px;width:100%;margin:12px 0 0;
  background:var(--line);
  transition:background .3s var(--ease);
}
.chapter.is-active .chapter__num{color:var(--gold);}
.chapter.is-active .chapter__rule{background:linear-gradient(90deg,var(--gold),rgba(242,193,78,0));}

/* 卡片 */
.card{
  position:relative;display:flex;flex-direction:column;gap:14px;
  padding:clamp(18px,2.2vw,28px);
  background:linear-gradient(165deg,var(--stand),rgba(10,20,40,.92));
  border:1px solid var(--line);
  box-shadow:var(--shadow-hard);
  transition:border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.card:hover,.card:focus-within{
  border-color:var(--gold);
  transform:translate(-3px,-3px);
  box-shadow:12px 12px 0 rgba(0,0,0,.6);
}
.card__title{margin:0;font-size:clamp(18px,2vw,22px);font-weight:800;color:var(--ink-1);}
.card__meta{
  margin:0;font-family:var(--font-data);font-size:12px;letter-spacing:.1em;color:var(--ink-3);
}
.card--hot{border-left:3px solid var(--red);}
.card--terrace{border-left:3px solid var(--terrace);}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 9px;
  border:1px solid var(--line);
  background:rgba(10,20,40,.6);
  color:var(--mist);
  font-family:var(--font-data);font-size:11px;letter-spacing:.12em;
}
.tag--gold{color:var(--gold-soft);border-color:rgba(242,193,78,.55);background:rgba(242,193,78,.12);}
.tag--hot{color:#FFD9DF;border-color:rgba(226,62,87,.6);background:rgba(226,62,87,.16);animation:pulse 2.6s var(--ease) infinite;}
@keyframes pulse{0%,100%{opacity:.72;}50%{opacity:1;}}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:14px 22px;
  border:1px solid var(--gold);
  background:var(--gold);color:#0A1428;
  font-size:15px;font-weight:700;letter-spacing:.06em;
  cursor:pointer;
  transition:background .16s var(--ease),color .16s var(--ease),border-color .16s var(--ease),transform .16s var(--ease),box-shadow .16s var(--ease);
}
.btn:hover{
  background:var(--gold-soft);border-color:var(--gold-soft);color:#08111F;
  transform:translate(-2px,-2px);box-shadow:6px 6px 0 rgba(0,0,0,.6);
}
.btn--ghost{background:transparent;color:var(--white);border-color:var(--line);}
.btn--ghost:hover{border-color:var(--gold);color:var(--gold-soft);background:rgba(242,193,78,.08);}
.btn--red{background:var(--red);border-color:var(--red);color:#FFF5F6;}
.btn--red:hover{background:#F0576E;border-color:#F0576E;color:#FFF5F6;}
.btn--sm{padding:10px 16px;font-size:13px;}
.btn-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px;}

/* 面包屑 */
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  list-style:none;margin:0 0 22px;padding:0;
  font-family:var(--font-data);font-size:11px;letter-spacing:.12em;color:var(--ink-3);
}
.crumbs li{display:flex;align-items:center;}
.crumbs li::after{content:"/";margin-left:8px;color:var(--line);}
.crumbs li:last-child::after{content:"";margin:0;}
.crumbs a{color:var(--ink-3);}
.crumbs a:hover{color:var(--gold);}
.crumbs [aria-current="page"]{color:var(--mist);}

/* 网格 */
.grid{display:grid;gap:var(--gap);}
.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));}

/* 图像容器（页面阶段放入图片） */
.media{
  position:relative;display:block;margin:0;overflow:hidden;
  border:1px solid var(--line);
  background:linear-gradient(150deg,var(--stand),#0A1428);
  box-shadow:var(--shadow-hard);
}
.media img{display:block;width:100%;height:100%;object-fit:cover;aspect-ratio:16/9;}
.media--wide img{aspect-ratio:21/9;}
.media--tall img{aspect-ratio:3/4;}
.media--square img{aspect-ratio:1/1;}
.media__slot{
  display:flex;align-items:center;justify-content:center;
  aspect-ratio:16/9;
  background:
    repeating-linear-gradient(135deg,rgba(27,44,78,.55) 0 12px,rgba(16,30,60,.55) 12px 24px);
  color:var(--ink-3);
  font-family:var(--font-data);font-size:11px;letter-spacing:.18em;
}
.media--wide .media__slot{aspect-ratio:21/9;}
.media--tall .media__slot{aspect-ratio:3/4;}
.media__frame{position:absolute;inset:10px;border:1px solid rgba(242,193,78,.3);pointer-events:none;}
.media__caption{
  display:block;margin-top:10px;
  font-family:var(--font-data);font-size:11px;letter-spacing:.1em;color:var(--ink-3);
}

/* 数据板 */
.stat-board{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(158px,1fr));
  border:1px solid var(--line);
  background:rgba(16,30,60,.6);
}
.stat{padding:18px;border-right:1px solid var(--line);}
.stat:last-child{border-right:0;}
.stat__value{
  display:block;
  font-family:var(--font-data);font-size:26px;line-height:1.3;letter-spacing:.04em;
  color:var(--gold);
}
.stat__label{font-size:12px;letter-spacing:.14em;color:var(--ink-3);}

/* 显现动效 */
.reveal{opacity:1;transform:none;}
.js-ready .reveal{
  opacity:0;transform:translateY(16px);
  transition:opacity .5s var(--ease),transform .5s var(--ease);
  transition-delay:calc(var(--i,0) * 90ms);
}
.js-ready .reveal.is-visible{opacity:1;transform:none;}

/* ==========================================================================
   页脚：看台地平线
   ========================================================================== */
.site-footer{
  position:relative;overflow:hidden;
  margin-top:clamp(48px,8vw,96px);
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,#0B1730,#080F20);
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;bottom:0;height:180px;pointer-events:none;
  background:
    repeating-linear-gradient(90deg,rgba(242,193,78,.14) 0 1px,transparent 1px 72px),
    linear-gradient(to top,rgba(16,30,60,.9),rgba(16,30,60,0) 78%);
  mask-image:linear-gradient(to top,#000 10%,transparent 100%);
  -webkit-mask-image:linear-gradient(to top,#000 10%,transparent 100%);
}
.site-footer::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:220px;pointer-events:none;
  background:radial-gradient(120% 100% at 50% 118%,rgba(242,193,78,.18),transparent 62%);
}
.footer-grid{
  position:relative;z-index:1;
  display:grid;gap:clamp(24px,4vw,48px);
  grid-template-columns:minmax(0,1.3fr) repeat(3,minmax(0,.85fr));
  padding-block:clamp(40px,6vw,72px) clamp(28px,4vw,44px);
}
.footer-brand__name{
  margin:0 0 10px;
  font-size:clamp(22px,3vw,30px);font-weight:900;
  letter-spacing:.16em;color:var(--white);
}
.footer-brand__text{margin:0 0 20px;max-width:38ch;font-size:15px;color:var(--ink-3);}
.footer-col__title{
  margin:0 0 14px;
  font-family:var(--font-data);font-size:11px;letter-spacing:.22em;
  color:var(--gold);
}
.footer-col__list{list-style:none;margin:0;padding:0;}
.footer-col__list li{margin-bottom:10px;}
.footer-col__list a{color:var(--ink-2);font-size:15px;border-bottom:1px solid transparent;transition:color .18s var(--ease),border-color .18s var(--ease);}
.footer-col__list a:hover{color:var(--gold-soft);border-color:rgba(242,193,78,.5);}

.contact-list{list-style:none;margin:0;padding:0;}
.contact-list li{margin-bottom:12px;}
.contact-list__label{
  display:block;
  font-family:var(--font-data);font-size:11px;letter-spacing:.16em;
  color:var(--ink-3);
}
.contact-list__note{
  font-size:13px;line-height:1.7;color:var(--ink-3);
  border-left:2px solid var(--line);padding-left:12px;
}

.footer-bottom{
  position:relative;z-index:1;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding-block:18px 26px;
  border-top:1px solid var(--line);
}
.footer-bottom__legal,.footer-bottom__note{
  margin:0;
  font-family:var(--font-data);font-size:11px;letter-spacing:.12em;color:var(--ink-3);
}
.footer-bottom__note{color:var(--mist);}

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width:1080px){
  .grid--4{grid-template-columns:repeat(2,minmax(0,1fr));}
}

@media (max-width:1000px){
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .chapter__rail{position:static;top:auto;}
  .chapter{grid-template-columns:64px minmax(0,1fr);}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}

@media (max-width:900px){
  .navwrap__inner{justify-content:space-between;}
  .nav-toggle{display:inline-flex;}
  .site-nav{
    position:absolute;left:calc(var(--gutter) * -1);right:calc(var(--gutter) * -1);top:100%;
    width:auto;z-index:70;
    background:var(--stand);
    border-top:1px solid var(--line);border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-soft);
    max-height:0;overflow:hidden;visibility:hidden;
    transition:max-height .3s var(--ease),visibility .3s var(--ease);
  }
  .site-nav[data-open]{max-height:min(72vh,540px);overflow-y:auto;visibility:visible;}
  .nav-list{flex-direction:column;align-items:stretch;gap:0;padding:6px 0;}
  .nav-list a{width:100%;padding:14px 20px;font-size:16px;border-bottom:1px solid var(--line);}
  .nav-list li:last-child a{border-bottom:0;}
  .nav-list a::after{display:none;}
  .nav-list a[aria-current="page"]{background:linear-gradient(90deg,rgba(242,193,78,.16),transparent);}
}

@media (max-width:760px){
  body{font-size:16px;}
  .masthead{padding-block:16px 12px;}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .stat{border-right:0;border-bottom:1px solid var(--line);}
  .stat:last-child{border-bottom:0;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

@media (max-width:640px){
  .grid--2,.grid--3,.grid--4{grid-template-columns:minmax(0,1fr);}
  .chapter{grid-template-columns:minmax(0,1fr);gap:12px;}
  .chapter__rail{display:flex;align-items:center;gap:12px;}
  .chapter__rule{margin:0;flex:1 1 auto;}
  .btn{width:100%;}
  .btn-row{flex-direction:column;align-items:stretch;}
}

/* ---------- 无障碍与动效偏好 ---------- */
@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-ready .reveal{opacity:1;transform:none;}
  .read-progress__bar{transition:none;}
}