/* ============================================================
   十博10体育 · 共享样式表  /assets/site.css
   展览画册 × 规则档案：炭黑底色层 / 玻璃悬浮层 / 奶油实色层
   ============================================================ */

:root{
  --ink:#0E1013;
  --ink-2:#15181D;
  --paper:#F2E8D8;
  --paper-2:#E7DAC5;
  --ember:#E8552D;
  --ember-hi:#FF7A45;
  --ice:#4FC3F7;
  --ice-deep:#1E5C7A;
  --copper:#B07A3C;
  --sepia:#241B16;
  --graphite:#6B7280;
  --pass:#2E7D5B;
  --mist:#F5F7FA;

  --font-display:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-body:"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;

  --wrap:1240px;
  --gut:clamp(18px,4vw,56px);
  --radius:18px;
  --radius-lg:28px;
  --shadow:0 18px 46px -22px rgba(0,0,0,.85);
  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:320ms;
}

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

html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
}

body{
  margin:0;
  min-height:100%;
  background:
    radial-gradient(120% 80% at 88% -12%,rgba(30,92,122,.30),transparent 56%),
    radial-gradient(90% 62% at -6% 4%,rgba(232,85,45,.14),transparent 52%),
    var(--ink);
  background-color:var(--ink);
  color:var(--mist);
  font-family:var(--font-body);
  font-size:clamp(15px,.5vw + 13.2px,17px);
  font-weight:400;
  line-height:1.85;
  letter-spacing:.012em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

img,svg{max-width:100%;height:auto;display:block}
button{font:inherit;color:inherit}

a{color:var(--ice);text-decoration:none}
a:hover{color:var(--ember-hi)}

h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:900;
  line-height:1.2;
  letter-spacing:-.01em;
  margin:0;
  color:var(--mist);
}

p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}

:focus-visible{
  outline:2px solid var(--ice);
  outline-offset:3px;
  border-radius:6px;
}

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

/* ---------- 通用工具 ---------- */

.wrap{
  width:100%;
  max-width:var(--wrap);
  margin-inline:auto;
  padding-inline:var(--gut);
}

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

.mono{
  font-family:var(--font-mono);
  font-size:.9375rem;
  letter-spacing:.02em;
  font-variant-numeric:tabular-nums;
}

.divider-copper{
  height:1px;border:0;margin:0;
  background:linear-gradient(90deg,var(--copper),rgba(176,122,60,.06));
}

.stack{display:flex;flex-direction:column;gap:clamp(14px,1.8vw,24px)}

.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--7-3{grid-template-columns:minmax(0,7fr) minmax(0,3fr)}
.grid--3-7{grid-template-columns:minmax(0,3fr) minmax(0,7fr)}

/* ---------- 章节骨架 ---------- */

.section{padding-block:clamp(48px,7vw,104px)}
.section--tight{padding-block:clamp(30px,4vw,60px)}

.section-head{
  display:grid;
  grid-template-columns:auto minmax(0,1fr);
  gap:clamp(16px,3vw,44px);
  align-items:center;
  margin-bottom:clamp(26px,3.6vw,52px);
}

.chapter-num{
  font-family:var(--font-mono);
  font-weight:700;
  font-size:clamp(52px,9vw,104px);
  line-height:.82;
  letter-spacing:-.05em;
  color:rgba(232,85,45,.16);
  -webkit-text-stroke:1.5px var(--ember);
  font-variant-numeric:tabular-nums;
  user-select:none;
}

.section-kicker{
  display:block;
  font-family:var(--font-mono);
  font-size:.75rem;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--copper);
  margin-bottom:.55em;
}

.section-title{
  font-size:clamp(1.6rem,3.4vw,2.6rem);
  font-weight:900;
}

.lede{
  max-width:62ch;
  font-size:clamp(1.02rem,1.35vw,1.22rem);
  line-height:1.9;
  color:rgba(245,247,250,.84);
}

.note{
  border-left:2px solid var(--copper);
  padding:6px 0 6px 16px;
  color:var(--graphite);
  font-size:.9375rem;
  line-height:1.78;
}

.breadcrumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:.55em;
  padding-block:clamp(16px,2.2vw,26px);
  font-family:var(--font-mono);
  font-size:.8125rem;
  letter-spacing:.04em;
  color:var(--graphite);
}
.breadcrumbs li{display:flex;align-items:center;gap:.55em}
.breadcrumbs li + li::before{content:"/";color:rgba(107,114,128,.7)}
.breadcrumbs a{
  color:rgba(245,247,250,.72);
  border-bottom:1px solid rgba(176,122,60,.5);
}
.breadcrumbs a:hover{color:var(--ice);border-bottom-color:var(--ice)}
.breadcrumbs [aria-current="page"]{color:var(--paper)}

/* ---------- 按钮 ---------- */

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.5em;
  font-family:var(--font-display);
  font-weight:700;
  font-size:.9375rem;
  letter-spacing:.02em;
  line-height:1;
  padding:12px 22px;
  border-radius:999px;
  border:1px solid transparent;
  cursor:pointer;
  text-decoration:none;
  white-space:nowrap;
  transition:transform 180ms var(--ease),background 180ms var(--ease),
             color 180ms var(--ease),border-color 180ms var(--ease),
             box-shadow 180ms var(--ease);
}
.btn--primary{
  background:var(--ember);
  color:#fff;
  box-shadow:0 14px 28px -16px rgba(232,85,45,.95);
}
.btn--primary:hover{background:var(--ember-hi);color:#fff;transform:translateY(-2px)}
.btn--ghost{
  background:transparent;
  color:var(--mist);
  border-color:rgba(242,232,216,.30);
}
.btn--ghost:hover{border-color:var(--ice);color:var(--ice);transform:translateY(-2px)}

/* ---------- 悬浮胶囊页头 ---------- */

.site-header{
  position:sticky;
  top:0;
  z-index:60;
  padding:14px var(--gut) 0;
  transition:padding var(--dur) var(--ease);
}
.site-header[data-condensed="true"]{padding-top:8px}

.scroll-progress{
  position:fixed;
  top:0;left:0;right:0;
  height:2px;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:linear-gradient(90deg,var(--ember),var(--ember-hi) 42%,var(--ice));
  z-index:80;
  pointer-events:none;
}

.header-shell{
  position:relative;
  max-width:var(--wrap);
  margin-inline:auto;
}

.skip-link{
  position:absolute;
  left:var(--gut);
  top:0;
  transform:translateY(-160%);
  z-index:100;
  padding:10px 18px;
  border-radius:0 0 14px 14px;
  background:var(--ember);
  color:#fff;
  font-weight:700;
  font-size:.875rem;
  text-decoration:none;
  transition:transform 200ms var(--ease);
}
.skip-link:focus{transform:translateY(0);color:#fff}

.nav-pod{
  display:flex;
  align-items:center;
  gap:clamp(10px,1.4vw,22px);
  padding:9px 10px 9px 18px;
  border-radius:999px;
  background:rgba(14,16,19,.66);
  border:1px solid rgba(242,232,216,.16);
  backdrop-filter:blur(16px) saturate(1.2);
  -webkit-backdrop-filter:blur(16px) saturate(1.2);
  box-shadow:0 20px 44px -28px rgba(0,0,0,.95);
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.site-header[data-condensed="true"] .nav-pod{
  background:rgba(10,12,15,.86);
  border-color:rgba(176,122,60,.34);
}

.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--mist);
  text-decoration:none;
}
.brand:hover{color:var(--mist)}

.brand-mark{
  width:26px;
  height:26px;
  flex:0 0 auto;
  border-radius:8px;
  background:
    linear-gradient(135deg,var(--ember) 0 50%,transparent 50%),
    linear-gradient(315deg,var(--ice) 0 44%,transparent 44%),
    var(--ink);
  box-shadow:inset 0 0 0 1px rgba(242,232,216,.30);
}

.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-family:var(--font-display);font-weight:900;font-size:1.0625rem;letter-spacing:.03em}
.brand-tag{
  font-family:var(--font-mono);
  font-size:.6875rem;
  letter-spacing:.14em;
  color:var(--copper);
}

.nav-track{flex:1 1 auto;min-width:0}
.nav-list{display:flex;align-items:center;gap:2px}
.nav-link{
  display:block;
  padding:8px 14px;
  border-radius:999px;
  font-size:.9375rem;
  line-height:1.4;
  color:rgba(245,247,250,.72);
  text-decoration:none;
  white-space:nowrap;
  transition:color 180ms var(--ease),background 180ms var(--ease);
}
.nav-link:hover{color:var(--mist);background:rgba(245,247,250,.08)}
.nav-link[aria-current="page"]{
  background:var(--paper);
  color:var(--ink);
  font-weight:700;
}

.nav-cta{flex:0 0 auto;margin-left:auto;padding:11px 20px}

.nav-toggle{
  display:none;
  align-items:center;
  gap:9px;
  padding:8px 14px;
  border-radius:999px;
  border:1px solid rgba(242,232,216,.28);
  background:transparent;
  color:var(--mist);
  font-size:.8125rem;
  letter-spacing:.06em;
  cursor:pointer;
  transition:border-color 180ms var(--ease),color 180ms var(--ease);
}
.nav-toggle:hover{border-color:var(--ice);color:var(--ice)}
.nav-toggle-bars{display:flex;flex-direction:column;gap:3.5px;width:16px}
.nav-toggle-bar{
  display:block;height:1.5px;border-radius:2px;background:currentColor;
  transition:transform 200ms var(--ease),opacity 200ms var(--ease);
}

.site-header[data-open="true"] .nav-toggle-bar:nth-child(1){transform:translateY(5px) rotate(45deg)}
.site-header[data-open="true"] .nav-toggle-bar:nth-child(2){opacity:0}
.site-header[data-open="true"] .nav-toggle-bar:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

.header-marker{
  position:absolute;
  top:calc(100% + 10px);
  left:6px;
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:5px 14px 5px 6px;
  border-radius:999px;
  background:rgba(14,16,19,.78);
  border:1px solid rgba(176,122,60,.45);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  font-family:var(--font-mono);
  font-size:.75rem;
  letter-spacing:.08em;
  color:var(--mist);
  opacity:0;
  transform:translateY(-6px);
  pointer-events:none;
  transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.site-header[data-condensed="true"] .header-marker{opacity:1;transform:none}
.marker-index{
  display:inline-grid;place-items:center;
  min-width:26px;height:22px;padding:0 7px;
  border-radius:999px;
  background:var(--ember);
  color:#fff;
  font-size:.6875rem;
}
.marker-name{color:rgba(245,247,250,.82)}

/* ---------- 图片容器（供页面阶段放置占位） ---------- */

.media-frame{
  position:relative;
  display:block;
  width:100%;
  aspect-ratio:16 / 9;
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid rgba(242,232,216,.12);
  background:
    repeating-linear-gradient(135deg,rgba(79,195,247,.10) 0 10px,transparent 10px 20px),
    linear-gradient(160deg,rgba(30,92,122,.72),rgba(14,16,19,.94));
}
.media-frame--square{aspect-ratio:1 / 1}
.media-frame--portrait{aspect-ratio:3 / 4}
.media-frame > img{width:100%;height:100%;object-fit:cover}
.media-ph{
  position:absolute;inset:0;
  display:grid;place-items:center;
  padding:14px;
  text-align:center;
  font-family:var(--font-mono);
  font-size:.6875rem;
  letter-spacing:.18em;
  color:rgba(245,247,250,.55);
}

/* ---------- 卡片与表格 ---------- */

.archive-card{
  background:var(--paper);
  color:var(--sepia);
  border-radius:var(--radius-lg);
  border:1px solid rgba(36,27,22,.12);
  padding:clamp(22px,3vw,42px);
  box-shadow:var(--shadow);
}
.archive-card h2,.archive-card h3,.archive-card h4{color:var(--sepia)}

.glass-panel{
  background:rgba(245,247,250,.06);
  border:1px solid rgba(242,232,216,.14);
  border-radius:var(--radius);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  padding:clamp(18px,2.4vw,32px);
}

.data-table{
  width:100%;
  border-collapse:collapse;
  font-family:var(--font-mono);
  font-size:.875rem;
  font-variant-numeric:tabular-nums;
  color:var(--sepia);
}
.data-table caption{
  text-align:left;
  font-family:var(--font-body);
  font-size:.875rem;
  color:var(--graphite);
  padding-bottom:10px;
}
.data-table th,.data-table td{
  padding:12px 14px;
  text-align:left;
  vertical-align:top;
  border-bottom:1px solid rgba(36,27,22,.14);
}
.data-table thead th{
  background:var(--sepia);
  color:var(--paper);
  font-weight:600;
  letter-spacing:.06em;
  white-space:nowrap;
}
.data-table thead th:first-child{border-radius:10px 0 0 0}
.data-table thead th:last-child{border-radius:0 10px 0 0}
.data-table tbody tr{transition:background 160ms var(--ease)}
.data-table tbody tr:hover{background:rgba(232,85,45,.09)}

/* ---------- 标签 ---------- */

.tag{
  display:inline-flex;
  align-items:center;
  gap:.4em;
  padding:3px 10px;
  border-radius:999px;
  border:1px solid currentColor;
  font-family:var(--font-mono);
  font-size:.75rem;
  letter-spacing:.06em;
  line-height:1.5;
  white-space:nowrap;
}
.tag--live{color:var(--pass)}
.tag--date{color:var(--copper)}
.tag--data{color:var(--ice-deep)}

/* ---------- 右侧浮动索引 / 返回顶部 ---------- */

.index-rail{
  position:fixed;
  right:max(14px,calc(var(--gut) * .6));
  top:50%;
  transform:translateY(-50%);
  z-index:40;
  display:flex;
  flex-direction:column;
  gap:5px;
  max-width:206px;
  padding:12px 10px;
  border-radius:20px;
  background:rgba(14,16,19,.58);
  border:1px solid rgba(242,232,216,.12);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}
.index-link{
  display:flex;
  align-items:baseline;
  gap:8px;
  padding:5px 9px;
  border-radius:10px;
  font-family:var(--font-mono);
  font-size:.75rem;
  letter-spacing:.05em;
  color:rgba(245,247,250,.55);
  text-decoration:none;
  transition:color 180ms var(--ease),background 180ms var(--ease);
}
.index-link:hover{color:var(--mist)}
.index-link.is-active{background:var(--ice);color:var(--ink);font-weight:700}

.to-top{
  position:fixed;
  right:max(14px,calc(var(--gut) * .6));
  bottom:26px;
  z-index:45;
  width:44px;height:44px;
  display:grid;place-items:center;
  border-radius:14px;
  border:1px solid rgba(176,122,60,.5);
  background:rgba(14,16,19,.78);
  color:var(--mist);
  cursor:pointer;
  opacity:0;
  visibility:hidden;
  transform:translateY(8px);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  transition:opacity 220ms var(--ease),transform 220ms var(--ease),visibility 220ms;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:none}
.to-top:hover{border-color:var(--ice);color:var(--ice)}

/* ---------- 页脚 ---------- */

.site-footer{
  position:relative;
  margin-top:clamp(64px,9vw,140px);
  padding-top:clamp(44px,6vw,84px);
  background:
    radial-gradient(120% 100% at 10% 0%,rgba(30,92,122,.24),transparent 60%),
    radial-gradient(80% 90% at 100% 100%,rgba(232,85,45,.10),transparent 60%),
    var(--ink-2);
  border-top:1px solid rgba(176,122,60,.38);
  color:rgba(245,247,250,.76);
}

.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1.15fr 1.15fr;
  gap:clamp(28px,4vw,64px);
  padding-bottom:clamp(36px,5vw,64px);
}

.footer-brand{display:flex;flex-direction:column;gap:16px}
.footer-blurb{
  max-width:34ch;
  font-size:.9375rem;
  line-height:1.85;
  color:rgba(245,247,250,.62);
}

.footer-col{display:flex;flex-direction:column;gap:14px}
.footer-title{
  font-family:var(--font-mono);
  font-size:.75rem;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--copper);
}

.footer-list{display:flex;flex-direction:column;gap:9px;font-size:.9375rem}
.footer-list a{
  color:rgba(245,247,250,.74);
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color 180ms var(--ease),border-color 180ms var(--ease);
}
.footer-list a:hover{color:var(--ice);border-bottom-color:rgba(79,195,247,.5)}

.footer-list--plain li{display:flex;flex-direction:column;gap:2px}
.footer-label{
  font-family:var(--font-mono);
  font-size:.6875rem;
  letter-spacing:.14em;
  color:rgba(107,114,128,.95);
}
.footer-value{
  font-size:.875rem;
  line-height:1.7;
  color:rgba(245,247,250,.82);
  word-break:break-word;
}

.footer-base{
  border-top:1px solid rgba(242,232,216,.10);
  padding-block:clamp(18px,2.4vw,26px);
  background:rgba(8,9,11,.55);
}
.footer-base-inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 22px;
  font-family:var(--font-mono);
  font-size:.75rem;
  letter-spacing:.08em;
  color:rgba(245,247,250,.52);
}
.footer-legal{color:var(--copper)}
.footer-copy{margin-left:auto}

/* ---------- 滚动显现 ---------- */

html[data-reveal-ready="true"] [data-reveal]{
  opacity:0;
  transform:translateY(12px);
}
html[data-reveal-ready="true"] [data-reveal].is-visible{
  opacity:1;
  transform:none;
  transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease);
}

/* ---------- 平板 ---------- */

@media (max-width:1080px){
  .nav-toggle{display:inline-flex}

  .nav-track{
    position:absolute;
    top:calc(100% + 12px);
    left:0;right:0;
    padding:10px;
    border-radius:22px;
    background:rgba(10,12,15,.95);
    border:1px solid rgba(242,232,216,.16);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    box-shadow:var(--shadow);
    opacity:0;
    visibility:hidden;
    transform:translateY(-8px);
    transition:opacity 220ms var(--ease),transform 220ms var(--ease),visibility 220ms;
  }
  .nav-list{flex-direction:column;align-items:stretch;gap:4px}
  .nav-link{padding:12px 16px;border-radius:14px;font-size:1rem}
  .nav-link:hover{background:rgba(245,247,250,.07)}
  .nav-link[aria-current="page"]{background:rgba(242,232,216,.94);color:var(--ink)}

  .site-header[data-open="true"] .nav-track{
    opacity:1;
    visibility:visible;
    transform:none;
  }

  .grid--7-3,.grid--3-7{grid-template-columns:minmax(0,1fr)}
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
}

/* ---------- 手机 ---------- */

@media (max-width:900px){
  .grid--2,.grid--3{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1 / -1}
  .footer-copy{margin-left:0;flex-basis:100%}
}

@media (max-width:720px){
  .nav-cta{display:none}
  .site-header{padding-top:10px}
  .nav-pod{padding:8px 8px 8px 14px;gap:8px}
  .brand-tag{display:none}
  .header-marker{display:none}
  .section-head{grid-template-columns:minmax(0,1fr);gap:12px;align-items:start}
  .chapter-num{font-size:clamp(44px,15vw,72px)}
  .index-rail{display:none}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
}

@media (max-width:420px){
  .nav-toggle-label{display:none}
  .nav-toggle{padding:9px 12px}
}

/* ---------- 动效降级 ---------- */

@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;
  }
  html[data-reveal-ready="true"] [data-reveal]{
    opacity:1 !important;
    transform:none !important;
  }
  .header-marker{opacity:1;transform:none}
}