/* ===== 千赢体育VIP · 共享站点样式（/assets/site.css） ===== */

:root{
  --c-indigo:#16255A;
  --c-indigo-deep:#0B1230;
  --c-gold:#F0B429;
  --c-gold-hi:#FFD97A;
  --c-cyan:#2BD9CF;
  --c-orange:#FF7A2F;
  --c-paper:#F6F1E4;
  --c-slate:#8A93B5;
  --c-white:#FFFFFF;
  --c-green:#35C08A;
  --c-line:rgba(138,147,181,.45);
  --c-line-dark:rgba(255,255,255,.16);
  --shadow-1:6px 6px 0 rgba(11,18,48,.88);
  --shadow-2:4px 4px 0 rgba(11,18,48,.7);
  --shadow-gold:6px 6px 0 rgba(240,180,41,.9);
  --shell:1240px;
  --gutter:24px;
  --section-space:96px;
  --t-12:12px; --t-14:14px; --t-17:17px; --t-22:22px;
  --t-30:30px; --t-44:44px; --t-64:64px;
  --font-display:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:ui-monospace,"JetBrains Mono","Roboto Mono",SFMono-Regular,Menlo,Consolas,monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-paper);
  color:var(--c-indigo);
  font-family:var(--font-body);
  font-size:var(--t-17);
  font-weight:400;
  line-height:1.75;
}
img,svg{max-width:100%;display:block}
img{height:auto}
figure{margin:0}
[hidden]{display:none !important}
::selection{background:var(--c-gold);color:var(--c-indigo-deep)}
:focus-visible{outline:3px solid var(--c-gold);outline-offset:3px}

/* ---------- 排版 ---------- */
h1,h2,h3,h4,h5{
  margin:0 0 .7em;
  font-family:var(--font-display);
  font-weight:900;
  line-height:1.16;
  letter-spacing:-.02em;
  color:inherit;
}
h1{font-size:clamp(30px,5vw,64px)}
h2{font-size:clamp(24px,3.4vw,44px)}
h3{font-size:clamp(20px,2.2vw,30px)}
h4{font-size:var(--t-22)}
p{margin:0 0 1.2em}
ul,ol{margin:0 0 1.2em}
a{color:var(--c-indigo);text-underline-offset:3px;text-decoration-color:var(--c-gold)}
.theme-deep a,.theme-mid a,.panel--deep a{color:var(--c-gold-hi)}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.annotation{
  display:block;
  font-family:var(--font-mono);
  font-size:var(--t-12);
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--c-slate);
}
.vertical-note{
  writing-mode:vertical-rl;
  text-orientation:mixed;
  font-family:var(--font-mono);
  font-size:var(--t-12);
  letter-spacing:.3em;
  color:var(--c-slate);
}
.visually-hidden{
  position:absolute;width:1px;height:1px;margin:-1px;padding:0;
  overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;
}

/* ---------- 跳转链 ---------- */
.skip-link{
  position:fixed;top:-140px;left:16px;z-index:200;
  padding:12px 20px;
  background:var(--c-gold);color:var(--c-indigo-deep);
  font-weight:700;text-decoration:none;
  border:2px solid var(--c-indigo-deep);
  box-shadow:var(--shadow-2);
  transition:top .18s ease-out;
}
.skip-link:focus{top:16px}

/* ---------- 页头 ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:var(--c-indigo-deep);
  border-bottom:3px solid var(--c-gold);
  box-shadow:0 12px 0 rgba(11,18,48,.12);
}
.site-header__inner{
  position:relative;
  max-width:var(--shell);
  margin:0 auto;
  padding:12px var(--gutter);
  min-height:76px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}
.brand-plaque{
  display:flex;align-items:center;gap:14px;
  text-decoration:none;color:var(--c-white);flex:0 0 auto;
}
.brand-plaque__glyph{
  display:grid;place-items:center;
  width:46px;height:46px;
  background:var(--c-gold);color:var(--c-indigo-deep);
  font-family:var(--font-display);font-weight:900;
  font-size:18px;line-height:1;letter-spacing:-.02em;
  border:2px solid var(--c-indigo-deep);
  box-shadow:4px 4px 0 rgba(43,217,207,.6);
}
.brand-plaque__text{display:flex;flex-direction:column;gap:3px}
.brand-plaque__name{
  font-family:var(--font-display);font-weight:900;
  font-size:20px;line-height:1.1;letter-spacing:.02em;color:var(--c-white);
}
.brand-plaque__tagline{
  font-family:var(--font-mono);font-size:11px;line-height:1.2;
  letter-spacing:.2em;color:var(--c-slate);
}
.brand-plaque:hover .brand-plaque__glyph{background:var(--c-gold-hi)}
.brand-plaque:hover .brand-plaque__name{color:var(--c-gold-hi)}

.nav-toggle{
  display:none;align-items:center;gap:10px;
  padding:10px 14px;
  background:transparent;color:var(--c-gold);
  border:2px solid var(--c-gold);
  font-family:var(--font-mono);font-size:var(--t-12);letter-spacing:.18em;
  cursor:pointer;
}
.nav-toggle__bars{display:grid;gap:4px;width:18px}
.nav-toggle__bars i{display:block;height:2px;background:currentColor}
.nav-toggle[aria-expanded="true"]{background:var(--c-gold);color:var(--c-indigo-deep)}

.site-nav{display:flex;align-items:center;gap:22px}
.site-nav__list{display:flex;align-items:center;gap:2px;list-style:none;margin:0;padding:0}
.site-nav__link{
  position:relative;display:inline-block;
  padding:10px 12px;
  color:rgba(255,255,255,.82);
  font-size:15px;font-weight:500;letter-spacing:.02em;
  text-decoration:none;
  border-bottom:2px solid transparent;
  transition:color .18s ease,border-color .18s ease;
}
.site-nav__link:hover{color:var(--c-gold-hi);border-bottom-color:var(--c-gold-hi)}
.site-nav__link[aria-current="page"]{
  color:var(--c-gold);font-weight:700;border-bottom-color:var(--c-gold);
}
.site-nav__aux{display:flex;align-items:center;gap:14px}
.quick-rail{display:none;list-style:none;margin:0;padding:0;gap:8px}
.quick-rail__link{
  display:inline-block;padding:6px 10px;
  border:2px solid var(--c-line-dark);
  color:var(--c-gold-hi);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;
  text-decoration:none;
}
.quick-rail__link:hover{border-color:var(--c-gold);background:rgba(240,180,41,.14)}

.read-progress{
  position:absolute;left:0;right:0;bottom:0;height:3px;
  background:rgba(255,255,255,.12);
}
.read-progress__bar{
  display:block;height:100%;width:100%;
  background:linear-gradient(90deg,var(--c-cyan),var(--c-gold),var(--c-gold-hi));
  transform:scaleX(0);transform-origin:0 50%;
  transition:transform .12s linear;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 20px;
  background:var(--c-white);color:var(--c-indigo-deep);
  border:2px solid var(--c-indigo-deep);
  box-shadow:var(--shadow-2);
  font-family:var(--font-body);font-size:15px;font-weight:700;letter-spacing:.02em;
  text-decoration:none;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease;
}
.btn:hover{transform:translate(2px,2px);box-shadow:2px 2px 0 rgba(11,18,48,.7)}
.btn--gold{
  background:var(--c-gold);border-color:var(--c-gold-hi);color:var(--c-indigo-deep);
  box-shadow:4px 4px 0 rgba(43,217,207,.55);
}
.btn--gold:hover{background:var(--c-gold-hi);box-shadow:2px 2px 0 rgba(43,217,207,.55)}
.btn--ghost{
  background:transparent;color:var(--c-gold);border-color:var(--c-gold);
  box-shadow:4px 4px 0 rgba(240,180,41,.3);
}
.btn--ghost:hover{background:rgba(240,180,41,.14);box-shadow:2px 2px 0 rgba(240,180,41,.3)}
.btn--sm{padding:9px 16px;font-size:14px}
.btn--block{width:100%}

/* ---------- 布局 ---------- */
.shell{width:100%;max-width:var(--shell);margin:0 auto;padding:0 var(--gutter)}
.section{padding:var(--section-space) 0}
.section--tight{padding:56px 0}
.grid{display:grid;gap: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))}
.grid--split{grid-template-columns:minmax(0,5fr) minmax(0,7fr)}
.grid--rail{grid-template-columns:minmax(0,1fr) minmax(0,3fr)}
.theme-deep{background:var(--c-indigo);color:var(--c-white)}
.theme-mid{background:var(--c-indigo-deep);color:var(--c-white)}
.theme-paper{background:var(--c-paper);color:var(--c-indigo)}
.theme-white{background:var(--c-white);color:var(--c-indigo)}
.slash-cut--top{clip-path:polygon(0 26px,100% 0,100% 100%,0 100%)}
.slash-cut--bottom{clip-path:polygon(0 0,100% 0,100% calc(100% - 26px),0 100%)}
.rule{height:0;border-top:2px solid var(--c-line);margin:32px 0}
.rule--gold{border-top-color:var(--c-gold)}

/* ---------- 面包屑与长文 ---------- */
.crumbs{
  padding:22px 0 0;
  font-family:var(--font-mono);font-size:var(--t-12);letter-spacing:.18em;
  color:var(--c-slate);
}
.crumbs ol{display:flex;flex-wrap:wrap;gap:8px;list-style:none;margin:0;padding:0}
.crumbs li+li::before{content:"/";margin-right:8px;color:var(--c-gold)}
.crumbs a{color:var(--c-slate);text-decoration:none}
.crumbs a:hover{color:var(--c-indigo)}
.crumbs [aria-current="page"]{color:var(--c-indigo);font-weight:700}
.prose{max-width:72ch}
.prose h2{margin-top:1.5em}
.prose ul,.prose ol{padding-left:1.25em}
.prose li{margin-bottom:.5em}
.prose > :last-child{margin-bottom:0}

/* ---------- 章节组件 ---------- */
.chapter-band{
  display:flex;align-items:baseline;gap:18px;
  border-top:3px solid var(--c-indigo);
  padding-top:18px;margin-bottom:32px;
}
.chapter-band__num{
  font-family:var(--font-mono);font-size:var(--t-14);
  letter-spacing:.28em;color:var(--c-gold);font-variant-numeric:tabular-nums;
}
.chapter-band__title{
  margin:0;font-family:var(--font-display);font-weight:900;
  font-size:clamp(22px,3vw,44px);letter-spacing:-.02em;
}
.chapter-band__title::before{
  content:"";display:inline-block;width:28px;height:4px;
  background:var(--c-gold);vertical-align:middle;margin-right:14px;
}
.theme-deep .chapter-band,.theme-mid .chapter-band{border-top-color:rgba(255,255,255,.3)}
.section-number{
  display:block;margin-bottom:10px;
  font-family:var(--font-mono);font-size:var(--t-12);
  letter-spacing:.3em;text-transform:uppercase;color:var(--c-gold);
}

/* ---------- 卡片与档案组件 ---------- */
.card{
  display:flex;flex-direction:column;gap:12px;
  background:var(--c-white);
  border:2px solid var(--c-indigo);
  box-shadow:var(--shadow-1);
  padding:24px;
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.card:hover{transform:translateY(-2px);border-color:var(--c-gold);box-shadow:var(--shadow-gold)}
.card--offset{margin-top:24px}
.card__eyebrow{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.24em;
  text-transform:uppercase;color:var(--c-orange);
}
.card__title{margin:0;font-family:var(--font-display);font-size:var(--t-22);font-weight:900}
.card__text{margin:0;font-size:15px;line-height:1.7;color:#3B4569}
.card__foot{
  margin-top:auto;padding-top:12px;border-top:1px dashed var(--c-line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.data-card{
  display:flex;flex-direction:column;gap:6px;
  background:var(--c-white);
  border:2px solid var(--c-indigo);border-left:8px solid var(--c-gold);
  box-shadow:var(--shadow-2);
  padding:20px 22px;
}
.data-card--cyan{border-left-color:var(--c-cyan)}
.data-card--orange{border-left-color:var(--c-orange)}
.data-card__label{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.24em;
  text-transform:uppercase;color:var(--c-slate);
}
.data-card__value{
  font-family:var(--font-mono);font-variant-numeric:tabular-nums;
  font-size:var(--t-44);font-weight:700;line-height:1;color:var(--c-indigo);
}
.data-card__meta{font-size:14px;color:#48527A}
.tag-chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;
  border:2px solid var(--c-indigo);background:var(--c-white);color:var(--c-indigo);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;
}
.tag-chip--gold{background:var(--c-gold);border-color:var(--c-gold);color:var(--c-indigo-deep)}
.tag-chip--cyan{background:var(--c-cyan);border-color:var(--c-cyan);color:var(--c-indigo-deep)}
.tag-chip--orange{background:var(--c-orange);border-color:var(--c-orange);color:var(--c-white)}
.tag-chip--ghost{background:transparent;border-color:var(--c-slate);color:var(--c-slate)}
.status{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:var(--t-12);letter-spacing:.14em;
  color:var(--c-green);
}
.status::before{
  content:"";width:8px;height:8px;background:currentColor;
  box-shadow:0 0 0 3px rgba(53,192,138,.22);
}
.archive-drawer{
  margin-bottom:14px;
  background:var(--c-white);
  border:2px solid var(--c-indigo);
  box-shadow:var(--shadow-2);
}
.archive-drawer > summary{
  list-style:none;cursor:pointer;
  padding:16px 20px;
  display:flex;align-items:center;gap:14px;
  font-family:var(--font-display);font-size:var(--t-17);font-weight:700;
}
.archive-drawer > summary::-webkit-details-marker{display:none}
.archive-drawer > summary::after{
  content:"+";margin-left:auto;
  font-family:var(--font-mono);font-size:20px;line-height:1;color:var(--c-gold);
}
.archive-drawer[open] > summary::after{content:"–"}
.archive-drawer[open] > summary{background:var(--c-paper);border-bottom:2px solid var(--c-indigo)}
.archive-drawer__body{padding:18px 20px 22px;font-size:16px}
.archive-drawer__body > :last-child{margin-bottom:0}
.panel{
  background:var(--c-white);
  border:2px solid var(--c-indigo);
  box-shadow:var(--shadow-2);
  padding:24px;
}
.panel--paper{background:var(--c-paper)}
.panel--deep{background:var(--c-indigo);color:var(--c-white);border-color:var(--c-gold)}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:13px;letter-spacing:.14em;
  color:var(--c-indigo);text-decoration:none;
  border-bottom:2px solid var(--c-gold);padding-bottom:3px;
  transition:gap .18s ease,color .18s ease;
}
.link-arrow::after{content:"→"}
.link-arrow:hover{gap:14px;color:var(--c-orange)}
.theme-deep .link-arrow,.theme-mid .link-arrow{color:var(--c-gold-hi)}

/* ---------- 粘性目录 ---------- */
.toc-rail{
  position:sticky;top:112px;
  display:flex;flex-direction:column;
  border-left:2px solid var(--c-line);
}
.toc-rail__link{
  display:block;margin-left:-3px;
  padding:8px 0 8px 14px;
  border-left:3px solid transparent;
  font-family:var(--font-mono);font-size:var(--t-12);letter-spacing:.12em;
  color:var(--c-slate);text-decoration:none;
  transition:color .18s ease,border-color .18s ease;
}
.toc-rail__link:hover{color:var(--c-indigo)}
.toc-rail__link[aria-current="true"]{
  color:var(--c-indigo);font-weight:700;border-left-color:var(--c-gold);
}

/* ---------- 图片容器（供页面阶段放置图片） ---------- */
.image-frame{
  position:relative;display:block;overflow:hidden;
  aspect-ratio:16 / 10;
  background:var(--c-indigo);
  border:2px solid var(--c-indigo);
  box-shadow:var(--shadow-1);
}
.image-frame img{width:100%;height:100%;object-fit:cover}
.image-frame--tall{aspect-ratio:4 / 5}
.image-frame--wide{aspect-ratio:21 / 9}
.image-frame--square{aspect-ratio:1 / 1}
.image-frame__tag{
  position:absolute;left:0;bottom:0;
  padding:6px 12px;
  background:var(--c-gold);color:var(--c-indigo-deep);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.2em;
}
.image-frame figcaption{
  position:absolute;right:0;bottom:0;max-width:70%;
  padding:8px 12px;
  background:rgba(11,18,48,.82);color:var(--c-white);
  font-size:13px;line-height:1.5;
}

/* ---------- 滚动显现 ---------- */
.has-reveal [data-reveal]{
  opacity:0;transform:translateY(12px);
  transition:opacity .22s ease-out,transform .22s ease-out;
}
.has-reveal [data-reveal].is-revealed{opacity:1;transform:none}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-indigo-deep);
  color:rgba(255,255,255,.78);
  border-top:3px solid var(--c-gold);
}
.site-footer__inner{
  max-width:var(--shell);margin:0 auto;
  padding:64px var(--gutter) 40px;
  display:grid;gap:40px;
  grid-template-columns:minmax(0,1.4fr) minmax(0,1fr) minmax(0,1fr) minmax(0,1.4fr);
  align-items:start;
}
.site-footer__brand{min-width:0}
.site-footer__mark{
  margin:0 0 6px;
  font-family:var(--font-display);font-weight:900;
  font-size:32px;line-height:1.1;color:var(--c-white);
}
.site-footer__mark::after{
  content:"";display:block;width:56px;height:4px;
  background:var(--c-gold);margin-top:12px;
}
.site-footer__line{
  margin:0 0 14px;
  font-family:var(--font-mono);font-size:var(--t-12);letter-spacing:.16em;
  color:var(--c-gold);
}
.site-footer__note{
  margin:0;max-width:36ch;
  font-size:14px;line-height:1.7;color:rgba(255,255,255,.62);
}
.site-footer__vertical{display:block;margin-top:22px;color:rgba(255,255,255,.3)}
.site-footer__col{min-width:0}
.site-footer__title{
  margin:0 0 16px;
  font-family:var(--font-mono);font-size:var(--t-12);
  letter-spacing:.24em;text-transform:uppercase;color:var(--c-gold-hi);
}
.site-footer__list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.site-footer__list a{
  display:inline-block;
  color:rgba(255,255,255,.8);font-size:15px;text-decoration:none;
  transition:color .18s ease,transform .18s ease;
}
.site-footer__list a:hover{color:var(--c-gold-hi);transform:translateX(3px)}
.site-footer__address{
  font-style:normal;font-size:14px;line-height:1.95;color:rgba(255,255,255,.72);
}
.site-footer__address span{display:block}
.site-footer__base{
  max-width:var(--shell);margin:0 auto;
  padding:20px var(--gutter) 34px;
  border-top:1px solid var(--c-line-dark);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-family:var(--font-mono);font-size:var(--t-12);letter-spacing:.1em;
  color:var(--c-slate);
}
.site-footer__base p{margin:0}

/* ---------- 响应式 ---------- */
@media (max-width:1180px) and (min-width:961px){
  .site-nav{gap:12px}
  .site-nav__link{padding:9px 8px;font-size:14px}
  .brand-plaque__tagline{display:none}
}

@media (max-width:1080px){
  .site-footer__inner{grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media (max-width:960px){
  :root{--section-space:64px;--gutter:18px}
  body{font-size:16px}
  .site-header__inner{min-height:64px;padding:10px var(--gutter);gap:12px}
  .brand-plaque__glyph{width:40px;height:40px;font-size:16px}
  .brand-plaque__name{font-size:17px}
  .brand-plaque__tagline{display:none}
  .nav-toggle{display:inline-flex}
  .site-nav{
    position:absolute;top:100%;left:0;right:0;
    display:none;flex-direction:column;align-items:stretch;gap:0;
    background:var(--c-indigo);
    border-top:2px solid var(--c-gold);
    border-bottom:3px solid var(--c-gold);
    padding:10px var(--gutter) 22px;
    max-height:calc(100vh - 80px);
    overflow-y:auto;
    box-shadow:0 26px 0 rgba(11,18,48,.16);
  }
  .site-nav[data-open]{display:flex;animation:nav-drop .2s ease-out}
  .site-nav__list{flex-direction:column;align-items:stretch;gap:0}
  .site-nav__item + .site-nav__item{border-top:1px solid var(--c-line-dark)}
  .site-nav__link{
    display:block;padding:14px 12px;
    font-size:17px;
    border-bottom:0;border-left:3px solid transparent;
  }
  .site-nav__link[aria-current="page"]{
    border-left-color:var(--c-gold);background:rgba(240,180,41,.1);
  }
  .site-nav__aux{
    flex-direction:column;align-items:stretch;gap:14px;
    margin-top:18px;padding-top:18px;
    border-top:2px dashed var(--c-line-dark);
  }
  .quick-rail{display:flex;flex-wrap:wrap}
  .btn--sm{width:100%}
  .grid--2,.grid--3,.grid--4,.grid--split,.grid--rail{grid-template-columns:minmax(0,1fr)}
  .toc-rail{position:static;flex-direction:row;flex-wrap:wrap;border-left:0;border-top:2px solid var(--c-line);padding-top:10px}
  .toc-rail__link{margin-left:0;border-left:0;border-bottom:3px solid transparent;padding:6px 12px}
  .toc-rail__link[aria-current="true"]{border-bottom-color:var(--c-gold)}
}

@keyframes nav-drop{
  from{opacity:0;transform:translateY(-8px)}
  to{opacity:1;transform:none}
}

@media (max-width:640px){
  .site-footer__inner{grid-template-columns:minmax(0,1fr);padding-top:48px;gap:32px}
  .site-footer__vertical{display:none}
  .site-footer__mark{font-size:26px}
  .site-footer__base{flex-direction:column;align-items:flex-start}
  .chapter-band{flex-direction:column;gap:6px}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .has-reveal [data-reveal]{opacity:1;transform:none}
  .card:hover{transform:none}
  .btn:hover{transform:none}
}