/* ===========================================================
   江南体育 · 共享样式表 /assets/site.css
   堆叠面板 · 居中刊头 · 连续画布 · 极细边界
   =========================================================== */

/* ---------- 1. 设计令牌 ---------- */
:root{
  --ink-deep:#0F2438;
  --ink-mid:#1B3A57;
  --celadon-deep:#1F5F51;
  --celadon-light:#3C8F7B;
  --flare:#FF7A33;
  --signal:#E23E4A;
  --paper:#F7F5F0;
  --mist:#E3E6E8;
  --ink-black:#0B1420;
  --gold:#C9A961;

  --line-hair:1px solid rgba(15,36,56,.13);
  --line-soft:1px solid rgba(15,36,56,.07);
  --line-light:1px solid rgba(247,245,240,.16);
  --line-celadon:1px solid rgba(60,143,123,.34);

  --shadow-1:0 1px 2px rgba(11,20,32,.04),0 14px 34px -22px rgba(15,36,56,.34);
  --shadow-2:0 2px 5px rgba(11,20,32,.05),0 28px 62px -36px rgba(15,36,56,.45);

  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC","STSong",serif;
  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:"JetBrains Mono","Noto Sans Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --shell:1180px;
  --shell-narrow:820px;
  --gutter:24px;
  --radius:3px;
  --ease-out:cubic-bezier(.22,.61,.36,1);
  --header-h:auto;
}

/* ---------- 2. Reset 与基础排版 ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink-black);
  font-family:var(--font-sans);
  font-size:16px;
  font-weight:400;
  line-height:1.8;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img,svg,video,picture{display:block;max-width:100%;height:auto}
button{font:inherit;color:inherit;background:none;border:0}
h1,h2,h3,h4,h5{
  font-family:var(--font-serif);
  font-weight:400;
  line-height:1.2;
  letter-spacing:.01em;
  color:var(--ink-deep);
  margin:0;
}
p{margin:0 0 1.05em}
p:last-child{margin-bottom:0}
a{color:var(--celadon-deep);text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
strong{font-weight:600;color:var(--ink-deep)}
::selection{background:rgba(255,122,51,.28);color:var(--ink-black)}

:focus-visible{outline:2px solid var(--flare);outline-offset:3px;border-radius:2px}
:focus:not(:focus-visible){outline:none}

/* ---------- 3. 字体与文本工具 ---------- */
.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1;letter-spacing:-.01em}
.kicker{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.22em;
  text-transform:uppercase;color:var(--celadon-deep);line-height:1;
}
.kicker::before{content:"";width:26px;height:1px;background:currentColor;flex:none}
.section-title{font-size:clamp(28px,4.4vw,52px);letter-spacing:.005em}
.section-title--xl{font-size:clamp(34px,6.2vw,76px);line-height:1.1}
.lede{font-size:16px;line-height:1.9;color:var(--ink-mid);max-width:62ch}
.meta-line{font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;color:rgba(11,20,32,.5)}
.section--ink .section-title,.section--ink h1,.section--ink h2,.section--ink h3{color:var(--paper)}
.section--ink{background:var(--ink-deep);color:rgba(247,245,240,.82)}
.section--ink .lede{color:rgba(247,245,240,.7)}

/* ---------- 4. 布局骨架 ---------- */
.shell{width:100%;max-width:var(--shell);margin:0 auto;padding:0 var(--gutter)}
.shell--narrow{max-width:var(--shell-narrow)}
.section{position:relative;padding:clamp(56px,8vw,104px) 0}
.section--tight{padding:clamp(36px,5vw,64px) 0}
.section--mist{background:var(--mist)}
.section--hair{border-top:var(--line-hair)}

.grid{display:grid;gap:clamp(18px,2.4vw,32px)}
.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(0,1.4fr) minmax(0,1fr)}
.stack{display:grid;gap:clamp(14px,2vw,24px)}

/* ---------- 5. 面板与刻度 ---------- */
.panel{
  position:relative;
  background:var(--paper);
  border:var(--line-hair);
  border-radius:var(--radius);
  box-shadow:var(--shadow-1);
  padding:clamp(22px,3.4vw,40px);
}
.panel::before{
  content:"";position:absolute;inset:7px;
  border:1px solid rgba(15,36,56,.055);
  border-radius:2px;pointer-events:none;
}
.panel--flat{box-shadow:none}
.panel--ink{background:var(--ink-deep);color:rgba(247,245,240,.85);border-color:rgba(247,245,240,.12)}
.panel--ink::before{border-color:rgba(247,245,240,.06)}
.panel--ink h2,.panel--ink h3{color:var(--paper)}
.panel--flush{padding:0}

.ruled{
  height:10px;
  background-image:repeating-linear-gradient(90deg,rgba(15,36,56,.26) 0 1px,transparent 1px 13px);
  background-position:left bottom;
  background-size:100% 6px;
  background-repeat:repeat-x;
}
.section--ink .ruled{background-image:repeating-linear-gradient(90deg,rgba(247,245,240,.3) 0 1px,transparent 1px 13px)}

/* ---------- 6. 按钮与筛选组件 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5em;
  padding:10px 20px;
  font-size:13.5px;line-height:1.2;letter-spacing:.05em;
  border:1px solid transparent;border-radius:2px;
  cursor:pointer;white-space:nowrap;
  transition:transform .24s var(--ease-out),background-color .24s ease,color .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.btn--solid{
  background:var(--flare);color:var(--ink-black);font-weight:500;
  box-shadow:0 10px 22px -14px rgba(255,122,51,.9);
}
.btn--solid:hover{background:#ff8b4d;transform:translateY(-2px)}
.btn--ghost{
  background:transparent;color:var(--ink-deep);
  border-color:rgba(15,36,56,.22);
}
.btn--ghost:hover{border-color:var(--celadon-deep);color:var(--celadon-deep);transform:translateY(-2px)}
.btn--quiet{
  background:transparent;color:var(--celadon-deep);
  border-color:rgba(31,95,81,.28);
}
.btn--quiet:hover{background:rgba(31,95,81,.08);transform:translateY(-2px)}

.chip{
  display:inline-flex;align-items:center;gap:.45em;
  padding:8px 16px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;
  color:var(--ink-mid);
  background:transparent;
  border:1px solid rgba(15,36,56,.16);
  border-radius:999px;
  cursor:pointer;
  transition:color .2s ease,border-color .2s ease,background-color .2s ease,transform .2s var(--ease-out);
}
.chip:hover{border-color:var(--celadon-deep);color:var(--celadon-deep);transform:translateY(-2px)}
.chip[aria-pressed="true"]{
  background:var(--ink-deep);border-color:var(--ink-deep);color:var(--paper);
}
.chip[aria-pressed="true"]::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--flare);flex:none;
}
.filter-bar{
  display:flex;flex-wrap:wrap;gap:10px;align-items:center;
  padding:6px 0 0;
}
.filter-bar__status{
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.1em;
  color:rgba(11,20,32,.48);margin-left:auto;
}

/* ---------- 7. 图片容器（供页面阶段使用） ---------- */
.frame{
  position:relative;overflow:hidden;
  background:var(--mist);
  border:var(--line-hair);
  border-radius:var(--radius);
}
.frame > img,.frame > picture > img{
  display:block;width:100%;height:100%;object-fit:cover;
}
.frame--16x9{aspect-ratio:16/9}
.frame--4x3{aspect-ratio:4/3}
.frame--1x1{aspect-ratio:1/1}
.frame--wide{aspect-ratio:21/9}
.frame--tall{aspect-ratio:3/4}
.frame__caption{
  position:absolute;left:0;right:0;bottom:0;
  padding:26px 16px 12px;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em;
  color:rgba(247,245,240,.9);
  background:linear-gradient(180deg,rgba(15,36,56,0),rgba(15,36,56,.78));
}
.frame::after{
  content:"";position:absolute;inset:6px;
  border:1px solid rgba(247,245,240,.2);
  pointer-events:none;
}

/* ---------- 8. 面包屑与数据表 ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:20px 0 0;margin:0;list-style:none;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;
  color:rgba(11,20,32,.5);
}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px}
.breadcrumb li + li::before{content:"/";color:rgba(11,20,32,.26)}
.breadcrumb a{color:inherit}
.breadcrumb a:hover{color:var(--celadon-deep)}
.breadcrumb [aria-current="page"]{color:var(--ink-deep)}

.data-table{width:100%;border-collapse:collapse;font-size:14px}
.data-table caption{
  caption-side:top;text-align:left;padding:0 0 12px;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.14em;
  color:rgba(11,20,32,.5);
}
.data-table th{
  text-align:left;white-space:nowrap;
  padding:10px 12px;
  font-family:var(--font-mono);font-size:11.5px;font-weight:500;letter-spacing:.12em;
  text-transform:uppercase;color:var(--celadon-deep);
  border-bottom:1px solid rgba(15,36,56,.2);
}
.data-table th button{
  display:inline-flex;align-items:center;gap:6px;cursor:pointer;
  font:inherit;letter-spacing:inherit;color:inherit;padding:0;
}
.data-table th button::after{content:"↕";opacity:.4;font-size:11px}
.data-table th[aria-sort="ascending"] button::after{content:"↑";opacity:1;color:var(--flare)}
.data-table th[aria-sort="descending"] button::after{content:"↓";opacity:1;color:var(--flare)}
.data-table td{
  padding:11px 12px;
  border-bottom:1px solid rgba(15,36,56,.08);
  font-variant-numeric:tabular-nums;
}
.data-table tbody tr:nth-child(even) td{background:rgba(227,230,232,.45)}
.data-table tbody tr:hover td{background:rgba(60,143,123,.09)}
.data-table .is-alert{color:var(--signal)}
.data-table .is-hot{color:var(--flare)}

/* ---------- 9. 页头：居中刊头 ---------- */
.skip-link{
  position:absolute;top:-90px;left:50%;transform:translateX(-50%);
  z-index:400;
  padding:10px 20px;border-radius:0 0 3px 3px;
  background:var(--ink-deep);color:var(--paper);
  font-size:13px;letter-spacing:.08em;
  transition:top .22s var(--ease-out);
}
.skip-link:focus{top:0}

.site-header{
  position:sticky;top:0;z-index:200;
  background:rgba(247,245,240,.94);
  border-bottom:var(--line-hair);
  backdrop-filter:saturate(140%) blur(10px);
}
.masthead{position:relative;background:transparent}
.masthead::before{
  content:"";display:block;height:3px;
  background:linear-gradient(90deg,
    var(--ink-deep) 0 24%,
    var(--celadon-deep) 24% 52%,
    var(--flare) 52% 68%,
    var(--mist) 68% 100%);
}
.masthead__inner{
  max-width:var(--shell);margin:0 auto;
  padding:16px var(--gutter) 14px;
  display:grid;grid-template-columns:1fr auto 1fr;
  align-items:center;gap:18px;
}
.masthead__service{
  margin:0;max-width:24ch;
  font-family:var(--font-mono);font-size:11.5px;line-height:1.7;
  letter-spacing:.06em;color:rgba(11,20,32,.5);
}
.masthead__actions{display:flex;gap:10px;justify-self:end}

.brand{
  display:flex;flex-direction:column;align-items:center;gap:3px;
  text-align:center;color:var(--ink-deep);
}
.brand__name{
  font-family:var(--font-serif);
  font-size:clamp(24px,3.6vw,34px);
  font-weight:500;line-height:1.1;
  letter-spacing:.22em;text-indent:.22em;
  color:var(--ink-deep);
  transition:color .2s ease;
}
.brand__tagline{
  font-family:var(--font-mono);
  font-size:11px;letter-spacing:.34em;text-indent:.34em;
  color:var(--celadon-deep);
}
.brand:hover .brand__name{color:var(--celadon-deep)}

.nav-band{
  position:relative;
  border-top:var(--line-soft);
  background:linear-gradient(180deg,rgba(227,230,232,.55),rgba(247,245,240,0));
}
.nav-band__inner{
  max-width:var(--shell);margin:0 auto;padding:0 var(--gutter);
  display:flex;align-items:center;justify-content:center;
}
.primary-nav{display:block}
.primary-nav__list{display:flex;flex-wrap:wrap;justify-content:center;gap:2px}
.primary-nav__list a{
  position:relative;display:block;
  padding:13px 16px;
  font-size:14px;letter-spacing:.06em;
  color:var(--ink-mid);
  transition:color .22s ease;
}
.primary-nav__list a::after{
  content:"";position:absolute;left:16px;right:16px;bottom:6px;height:2px;
  background:var(--flare);
  transform:scaleX(0);transform-origin:center;
  transition:transform .28s var(--ease-out);
}
.primary-nav__list a:hover{color:var(--ink-black)}
.primary-nav__list a:hover::after{transform:scaleX(1)}
.primary-nav__list a[aria-current="page"]{color:var(--ink-black);font-weight:500}
.primary-nav__list a[aria-current="page"]::after{transform:scaleX(1)}

.nav-toggle{
  display:none;align-items:center;gap:10px;
  padding:12px 2px;margin:0;cursor:pointer;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.2em;
  color:var(--ink-deep);
}
.nav-toggle__bars{display:grid;gap:3.5px;flex:none}
.nav-toggle__bars span{
  display:block;width:16px;height:1.5px;background:currentColor;
  transition:transform .28s var(--ease-out),opacity .18s ease;
}
.site-header[data-open] .nav-toggle{color:var(--celadon-deep)}
.site-header[data-open] .nav-toggle__bars span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.site-header[data-open] .nav-toggle__bars span:nth-child(2){opacity:0}
.site-header[data-open] .nav-toggle__bars span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

/* ---------- 10. 页脚：深黛蓝大面板 ---------- */
.site-footer{
  position:relative;overflow:hidden;
  background:var(--ink-deep);
  color:rgba(247,245,240,.82);
}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(560px 300px at 12% 6%,rgba(60,143,123,.30),transparent 70%),
    radial-gradient(460px 260px at 88% -4%,rgba(255,122,51,.20),transparent 72%),
    radial-gradient(760px 400px at 50% 118%,rgba(31,95,81,.34),transparent 70%);
}
.footer-panel{
  position:relative;z-index:1;
  max-width:var(--shell);margin:0 auto;
  padding:0 var(--gutter);
}
.footer-inner{
  display:grid;
  grid-template-columns:minmax(0,.9fr) minmax(0,1.7fr);
  gap:clamp(28px,5vw,64px);
  padding:clamp(44px,6vw,74px) 0 36px;
  border-bottom:var(--line-light);
}
.footer-brand__name{
  display:inline-block;
  font-family:var(--font-serif);font-size:26px;font-weight:500;
  letter-spacing:.18em;color:var(--paper);
  transition:color .2s ease;
}
.footer-brand__name:hover{color:var(--flare)}
.footer-brand__slogan{
  margin:12px 0 0;
  font-family:var(--font-serif);font-size:15px;letter-spacing:.08em;
  color:rgba(247,245,240,.86);
}
.footer-brand__note{
  margin:14px 0 0;max-width:34ch;
  font-size:13px;line-height:1.85;color:rgba(247,245,240,.55);
}
.footer-cols{
  display:grid;gap:clamp(20px,3vw,40px);
  grid-template-columns:repeat(auto-fit,minmax(148px,1fr));
}
.footer-col__title{
  margin:0 0 14px;padding-bottom:10px;
  font-family:var(--font-mono);font-size:11px;font-weight:500;
  letter-spacing:.2em;text-transform:uppercase;
  color:var(--celadon-light);
  border-bottom:var(--line-celadon);
}
.footer-col__list{display:grid;gap:10px}
.footer-col__list a{
  display:inline-block;
  font-size:14px;color:rgba(247,245,240,.78);
  transition:color .2s ease,transform .2s var(--ease-out);
}
.footer-col__list a:hover{color:var(--flare);transform:translateX(3px)}
.footer-contact{
  display:grid;gap:18px 32px;
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
  padding:26px 0;
  border-bottom:var(--line-light);
}
.footer-contact__item{display:grid;gap:6px}
.footer-contact__label{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;
  color:rgba(60,143,123,.95);
}
.footer-contact__value{
  font-size:13.5px;line-height:1.7;color:rgba(247,245,240,.8);
}
.footer-base{
  display:flex;flex-wrap:wrap;gap:10px 28px;justify-content:space-between;
  padding:20px 0 34px;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em;
  color:rgba(247,245,240,.5);
}
.footer-base p{margin:0}

/* ---------- 11. 移动端固定底栏 ---------- */
.dock{
  position:fixed;left:0;right:0;bottom:0;z-index:220;
  display:none;
  grid-template-columns:repeat(4,1fr);
  background:rgba(15,36,56,.97);
  border-top:1px solid rgba(60,143,123,.4);
  padding-bottom:env(safe-area-inset-bottom);
  backdrop-filter:blur(12px);
}
.dock__item{
  display:flex;flex-direction:column;align-items:center;gap:6px;
  padding:9px 4px 8px;
  font-size:11px;letter-spacing:.06em;
  color:rgba(247,245,240,.72);
  transition:color .2s ease;
}
.dock__item::before{
  content:"";width:16px;height:2px;border-radius:2px;
  background:rgba(247,245,240,.3);
  transition:background-color .2s ease,width .2s var(--ease-out);
}
.dock__item:hover,.dock__item:focus-visible{color:var(--paper)}
.dock__item:hover::before{width:22px;background:var(--flare)}
.dock__item:nth-child(2)::before{background:var(--celadon-light)}
.dock__item:nth-child(3)::before{background:var(--flare)}
.dock__item:nth-child(4)::before{background:var(--gold)}

/* ---------- 12. 显现与计数 ---------- */
.js-reveal [data-reveal]{
  opacity:0;transform:translateY(16px);
  transition:opacity .42s var(--ease-out),transform .42s var(--ease-out);
}
.js-reveal [data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 13. 响应式 ---------- */
@media (max-width:1040px){
  .masthead__service{font-size:11px;max-width:20ch}
  .primary-nav__list a{padding:13px 12px}
}

@media (max-width:900px){
  :root{--gutter:18px}
  body{padding-bottom:58px}

  .masthead__inner{
    grid-template-columns:minmax(0,1fr);
    justify-items:center;gap:12px;
    padding:14px var(--gutter) 12px;
  }
  .brand{order:1}
  .masthead__actions{order:2;justify-self:center;flex-wrap:wrap;justify-content:center}
  .masthead__service{order:3;text-align:center;max-width:32ch}

  .nav-band__inner{justify-content:space-between}
  .nav-toggle{display:inline-flex}
  .primary-nav{
    position:absolute;top:100%;left:0;right:0;
    background:var(--paper);
    border-bottom:var(--line-hair);
    box-shadow:0 26px 44px -30px rgba(15,36,56,.6);
    max-height:0;overflow:hidden;visibility:hidden;
    transition:max-height .34s var(--ease-out),visibility .34s ease;
  }
  .site-header[data-open] .primary-nav{
    max-height:min(72vh,460px);
    overflow-y:auto;
    visibility:visible;
  }
  .primary-nav__list{flex-direction:column;gap:0;padding:6px 0 12px}
  .primary-nav__list a{
    padding:13px var(--gutter);
    border-bottom:1px solid rgba(15,36,56,.06);
  }
  .primary-nav__list a::after{display:none}
  .primary-nav__list a[aria-current="page"]{
    border-left:3px solid var(--flare);
    background:rgba(60,143,123,.08);
  }

  .footer-inner{grid-template-columns:minmax(0,1fr)}
  .dock{display:grid}

  .grid--2,.grid--3,.grid--split{grid-template-columns:minmax(0,1fr)}
}

@media (max-width:620px){
  body{font-size:15.5px}
  .btn{padding:9px 16px;font-size:13px}
  .masthead__actions .btn--ghost{display:none}
  .footer-cols{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-base{flex-direction:column;gap:8px}
  .filter-bar__status{margin-left:0;width:100%}
  .panel{padding:20px}
}

@media (max-width:400px){
  .footer-cols{grid-template-columns:minmax(0,1fr)}
}

/* ---------- 14. 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:.01ms !important;
  }
  .js-reveal [data-reveal]{opacity:1 !important;transform:none !important}
  .btn:hover,.chip:hover,.footer-col__list a:hover{transform:none}
}