/* ==========================================================================
   金多宝赛事 · 共享样式表 /assets/site.css
   高原竞技档案馆：观测站刻度框 + 赛季轨道 + 铭牌数字
   ========================================================================== */

:root{
  --lake:#0B4A6F;
  --lake-deep:#062F47;
  --barley:#C8A02E;
  --metal:#EBCB6A;
  --sunset:#DE6B33;
  --turquoise:#12544B;
  --ice:#F4F6F4;
  --mist:#BFD0D8;
  --ink:#0A1A24;
  --sand:#EDE6D4;
  --white:#FFFFFF;
  --rule:1px solid var(--mist);
  --font-display:"Source Han Sans SC","Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
  --font-serif:"Noto Serif SC","Songti SC","Source Han Serif SC",Georgia,serif;
  --wrap:1280px;
  --gutter:20px;
  --header-h:74px;
  --rail:248px;
  --ease:cubic-bezier(.2,.8,.2,1);
  --t-fast:120ms;
  --t-mid:200ms;
  --t-slow:260ms;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{max-width:100%;display:block}
button,input,select,textarea{font:inherit;color:inherit}
a{color:inherit}
table{border-collapse:collapse}

body{
  background:var(--ice);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:15px;
  line-height:1.75;
  letter-spacing:.01em;
  min-height:100vh;
  display:flex;
  flex-direction:column;
}

h1,h2,h3{font-family:var(--font-display);font-weight:800;letter-spacing:-.02em;line-height:1.12}
h1{font-size:clamp(30px,5vw,52px)}
h2{font-size:clamp(24px,3.2vw,34px)}
h3{font-size:clamp(18px,2vw,22px)}
h1,h2,h3{scroll-margin-top:calc(var(--header-h) + 24px)}
strong{font-weight:700}
#main-content{display:block;scroll-margin-top:calc(var(--header-h) + 12px)}

:focus-visible{outline:2px solid var(--metal);outline-offset:2px}

.container{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 var(--gutter)}
.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}

/* ---------- 布局骨架 ---------- */
.grid-12{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:20px}
.shell{display:grid;grid-template-columns:minmax(0,1fr);gap:32px;align-items:start}
.rail{position:static}
@media (min-width:1024px){
  .shell{grid-template-columns:var(--rail) minmax(0,1fr);gap:48px}
  .rail{position:sticky;top:calc(var(--header-h) + 24px);align-self:start;max-height:calc(100vh - var(--header-h) - 48px);overflow:auto}
}
@media (max-width:900px){.grid-12{grid-template-columns:repeat(6,minmax(0,1fr))}}
@media (max-width:600px){.grid-12{grid-template-columns:repeat(2,minmax(0,1fr))}}

.section{padding:56px 0}
.section--tight{padding:30px 0}
.section--sand{background:var(--sand)}
.section--lake{background:var(--lake);color:var(--ice)}
.section--deep{background:var(--lake-deep);color:var(--ice)}
.section--lake h2,.section--deep h2,.section--lake h1,.section--deep h1{color:var(--ice)}
.section-head{display:grid;gap:12px;margin-bottom:28px;max-width:72ch}
@media (min-width:900px){.section{padding:84px 0}}

.breakout{margin-left:-20px}
@media (max-width:640px){.breakout{margin-left:0}}

/* ---------- 文本组件 ---------- */
.prose{max-width:66ch;font-size:15px;line-height:1.75}
.prose p+p{margin-top:1.2em}
.prose h2{font-size:clamp(20px,2vw,26px);margin:1.8em 0 .6em}
.prose h3{margin:1.5em 0 .5em;font-weight:700}
.prose ul{list-style:disc;padding-left:1.3em}
.prose ol{list-style:decimal;padding-left:1.3em}
.prose li{margin:.4em 0}
.prose a{color:var(--lake);text-decoration:underline;text-decoration-color:var(--barley);text-underline-offset:3px}
.prose strong{color:var(--lake-deep)}
.note{
  font-family:var(--font-serif);
  font-size:13.5px;
  letter-spacing:.02em;
  color:#3D5563;
  border-left:2px solid var(--barley);
  padding-left:14px;
  margin:1.4em 0;
}
.kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.22em;
  color:var(--barley);text-transform:uppercase;
}
.kicker::before{content:"";width:22px;height:1px;background:var(--barley)}
.scale-line{height:10px;border-bottom:1px solid var(--mist);background-image:repeating-linear-gradient(90deg,var(--mist) 0 1px,transparent 1px 40px)}
.index-bar{
  display:flex;flex-wrap:wrap;gap:10px 22px;padding:10px 0;
  border-top:1px solid var(--mist);border-bottom:1px solid var(--mist);
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--lake);
}
.index-bar a{color:var(--lake);text-decoration:none;border-bottom:1px solid transparent}
.index-bar a:hover{color:var(--barley);border-bottom-color:var(--barley)}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 20px;border:1px solid transparent;background:transparent;
  font-family:var(--font-body);font-weight:600;font-size:14px;letter-spacing:.04em;
  text-decoration:none;cursor:pointer;white-space:nowrap;
  transition:background var(--t-fast) var(--ease),color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease);
}
.btn-gold{background:var(--barley);color:var(--lake-deep);border-color:var(--barley)}
.btn-gold:hover{background:var(--metal);border-color:var(--metal)}
.btn-outline{border-color:var(--metal);color:var(--metal)}
.btn-outline:hover{background:rgba(235,203,106,.14);color:var(--metal)}
.btn-ghost{border-color:rgba(191,208,216,.45);color:var(--ice);background:transparent;font-weight:500}
.btn-ghost:hover{border-color:var(--metal);color:var(--metal)}
.btn-sm{padding:9px 14px;font-size:13px}
.btn-xs{padding:5px 9px;font-size:11px;letter-spacing:.08em}

/* ---------- 铭牌 / 标签 / 画框 ---------- */
.plate{border:1px solid var(--mist);background:var(--white);padding:18px 20px}
.plate--sand{background:var(--sand);border-color:#D8CFB6}
.plate--dark{background:var(--lake-deep);color:var(--ice);border-color:rgba(235,203,106,.35)}
.plate-title{font-family:var(--font-display);font-weight:800;font-size:15px;letter-spacing:.02em;margin:0 0 8px}
.plate--dark .plate-title{color:var(--metal)}

.chip{
  display:inline-flex;align-items:center;gap:6px;padding:3px 9px;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em;
  background:rgba(200,160,46,.14);color:#7A5F0F;border:1px solid rgba(200,160,46,.5);
}
.chip--sunset{background:rgba(222,107,51,.14);color:#8A3B12;border-color:rgba(222,107,51,.5)}
.chip--dark{background:rgba(244,246,244,.08);color:var(--metal);border-color:rgba(235,203,106,.45)}

.figure-frame{position:relative;border:1px solid var(--mist);background:var(--white);padding:14px}
.figure-frame::before,.figure-frame::after{content:"";position:absolute;width:14px;height:14px;border:1px solid var(--barley)}
.figure-frame::before{top:-1px;left:-1px;border-right:0;border-bottom:0}
.figure-frame::after{bottom:-1px;right:-1px;border-left:0;border-top:0}

/* ---------- 指标数字 ---------- */
.metric{display:block}
.metric-value{
  display:block;font-family:var(--font-mono);font-weight:600;
  font-size:clamp(30px,4.4vw,54px);line-height:1;color:var(--lake);letter-spacing:-.02em;
}
.metric-value--gold{color:var(--barley)}
.metric-value--sunset{color:var(--sunset)}
.metric-label{display:block;margin-top:8px;font-family:var(--font-serif);font-size:12.5px;letter-spacing:.08em;color:var(--turquoise)}
.section--lake .metric-value,.section--deep .metric-value{color:var(--metal)}
.section--lake .metric-label,.section--deep .metric-label{color:var(--mist)}

/* ---------- 图片容器（页面阶段放置占位与图片） ---------- */
.media{position:relative;overflow:hidden;background:var(--lake-deep);border:1px solid var(--mist)}
.media img{width:100%;height:100%;object-fit:cover;filter:saturate(.88) contrast(1.04)}
.media--cool img{filter:saturate(.74) contrast(1.08) hue-rotate(-8deg)}
.media--16x9{aspect-ratio:16/9}
.media--4x3{aspect-ratio:4/3}
.media--1x1{aspect-ratio:1/1}
.media--wide{aspect-ratio:21/9}
.media-caption{display:block;padding-top:8px;font-family:var(--font-serif);font-size:12px;letter-spacing:.02em;color:var(--lake)}
.media-placeholder{
  display:grid;place-items:center;aspect-ratio:16/9;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;color:var(--mist);
  background-color:var(--lake-deep);
  background-image:repeating-linear-gradient(45deg,rgba(235,203,106,.10) 0 1px,transparent 1px 12px);
}

/* ---------- 表格 ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--mist);background:var(--white)}
.data-table{width:100%;min-width:640px;font-size:13px}
.data-table caption{text-align:left;padding:12px 14px;border-bottom:1px solid var(--mist);font-family:var(--font-serif);font-size:12.5px;color:var(--turquoise)}
.data-table th,.data-table td{padding:10px 14px;border-bottom:1px solid var(--mist);text-align:left;vertical-align:top}
.data-table thead th{
  background:var(--lake-deep);color:var(--ice);border-bottom-color:var(--lake-deep);
  font-family:var(--font-mono);font-size:11.5px;font-weight:600;letter-spacing:.1em;
}
.data-table tbody tr:hover,.data-table tbody tr.is-focus{background:var(--sand)}
.data-table td.num,.data-table th.num{font-family:var(--font-mono);text-align:right;letter-spacing:0}

/* ---------- 面包屑 ---------- */
.breadcrumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:14px 0;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em;color:var(--lake)}
.breadcrumbs li{display:flex;align-items:center;gap:8px}
.breadcrumbs li+li::before{content:"/";color:var(--mist)}
.breadcrumbs a{color:var(--lake);text-decoration:none;border-bottom:1px solid transparent}
.breadcrumbs a:hover{color:var(--barley);border-bottom-color:var(--barley)}
.breadcrumbs [aria-current="page"]{color:var(--turquoise)}

/* ---------- 章节目录跟随 ---------- */
.toc-link{display:block;padding:7px 0 7px 12px;border-left:2px solid var(--mist);color:#3D5563;text-decoration:none;font-size:13.5px;transition:color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease)}
.toc-link:hover{color:var(--lake);border-left-color:var(--barley)}
.toc-link[aria-current]{color:var(--lake-deep);border-left-color:var(--barley);font-weight:700}

/* ==========================================================================
   头部
   ========================================================================== */
.skip-link{
  position:absolute;left:12px;top:-70px;z-index:120;
  padding:10px 16px;background:var(--metal);color:var(--lake-deep);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;text-decoration:none;
  transition:top var(--t-fast) var(--ease);
}
.skip-link:focus{top:12px}

.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--lake);color:var(--ice);
  border-bottom:1px solid rgba(235,203,106,.4);
  transition:background var(--t-mid) var(--ease),border-color var(--t-mid) var(--ease);
}
.site-header.is-overlay:not(.is-scrolled){background:transparent;border-bottom-color:transparent}
.site-header.is-scrolled{background:var(--lake);border-bottom-color:var(--barley)}
.site-header[data-open]{background:var(--lake-deep);border-bottom-color:var(--barley)}

.header-inner{display:flex;align-items:center;gap:16px;min-height:var(--header-h)}

.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--ice)}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;display:grid;place-items:center;
  border:1px solid var(--metal);background:rgba(235,203,106,.10);
  font-family:var(--font-display);font-weight:800;font-size:17px;color:var(--metal);
}
.brand-text{display:block;line-height:1.15}
.brand-name{display:block;font-family:var(--font-display);font-weight:800;font-size:17px;letter-spacing:.04em}
.brand-sub{display:block;font-family:var(--font-serif);font-size:11px;letter-spacing:.14em;color:var(--mist)}

.site-nav{margin-left:auto}
.nav-list{display:flex;align-items:center}
.nav-item{display:block}
.nav-link{
  display:block;padding:10px 11px;white-space:nowrap;
  font-size:13.5px;letter-spacing:.02em;color:rgba(244,246,244,.86);text-decoration:none;
  border-bottom:2px solid transparent;
  transition:color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease);
}
.nav-link:hover{color:var(--metal);border-bottom-color:rgba(235,203,106,.5)}
.nav-link[aria-current="page"]{color:var(--metal);border-bottom-color:var(--barley)}

.header-actions{margin-left:16px;display:flex;align-items:center;gap:12px}
.header-cta{white-space:nowrap}
.season-switch{
  display:none;flex-direction:column;gap:2px;padding:6px 12px 6px 14px;
  border-left:1px solid rgba(235,203,106,.4);text-decoration:none;color:var(--ice);
}
.season-switch-label{font-family:var(--font-mono);font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:var(--metal)}
.season-switch-value{font-family:var(--font-mono);font-size:12.5px;color:rgba(244,246,244,.9)}
.season-switch:hover .season-switch-value{color:var(--metal)}

.nav-toggle{
  display:none;align-items:center;gap:8px;padding:8px 10px;
  background:transparent;border:1px solid rgba(235,203,106,.5);color:var(--metal);
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.14em;cursor:pointer;
}
.nav-toggle-bars{position:relative;display:block;width:16px;height:2px;background:currentColor}
.nav-toggle-bars::before,.nav-toggle-bars::after{content:"";position:absolute;left:0;width:16px;height:2px;background:currentColor;transition:transform var(--t-mid) var(--ease),opacity var(--t-fast) var(--ease)}
.nav-toggle-bars::before{top:-5px}
.nav-toggle-bars::after{top:5px}
[data-nav-toggle][aria-expanded="true"] .nav-toggle-bars{background:transparent}
[data-nav-toggle][aria-expanded="true"] .nav-toggle-bars::before{transform:translateY(5px) rotate(45deg)}
[data-nav-toggle][aria-expanded="true"] .nav-toggle-bars::after{transform:translateY(-5px) rotate(-45deg)}
.nav-toggle-text{line-height:1}

.header-scale{
  height:7px;
  border-top:1px solid rgba(191,208,216,.22);
  background-image:repeating-linear-gradient(90deg,rgba(235,203,106,.55) 0 1px,transparent 1px 32px);
}
.header-progress{position:absolute;left:0;right:0;bottom:-1px;height:2px;overflow:hidden}
.header-progress-bar{display:block;height:100%;width:0;background:var(--metal);transition:width var(--t-fast) linear}

[data-hero]{margin-top:calc(-1 * var(--header-h));padding-top:calc(var(--header-h) + 28px)}

@media (min-width:1240px){.season-switch{display:flex}}

@media (max-width:1023px){
  :root{--header-h:64px}
  .site-nav{
    position:absolute;top:100%;left:0;right:0;
    margin-left:0;padding:6px 0 14px;
    background:var(--lake-deep);
    border-top:1px solid rgba(235,203,106,.3);
    border-bottom:1px solid var(--barley);
    visibility:hidden;opacity:0;transform:translateY(-6px);
    transition:opacity var(--t-mid) var(--ease),transform var(--t-mid) var(--ease),visibility var(--t-mid) var(--ease);
  }
  .site-nav[data-open]{visibility:visible;opacity:1;transform:none}
  .nav-list{flex-direction:column;align-items:stretch}
  .nav-link{padding:13px var(--gutter);font-size:15px;border-bottom:1px solid rgba(191,208,216,.16);border-left:3px solid transparent}
  .nav-link[aria-current="page"]{border-bottom-color:rgba(191,208,216,.16);border-left-color:var(--barley);background:rgba(235,203,106,.08)}
  .header-actions{margin-left:auto}
  .header-cta{display:none}
  .nav-toggle{display:inline-flex}
}

/* ==========================================================================
   页脚
   ========================================================================== */
.site-footer{margin-top:auto;background:var(--lake-deep);color:var(--ice);border-top:3px solid var(--barley)}
.footer-top{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:48px;padding:56px 0 36px}
.footer-brand .brand{margin-bottom:16px}
.brand-footer{color:var(--ice)}
.footer-note{max-width:46ch;font-family:var(--font-serif);font-size:14px;letter-spacing:.02em;color:var(--mist)}
.footer-contact{margin-top:22px;padding-top:18px;border-top:1px solid rgba(191,208,216,.28);display:grid;gap:10px}
.footer-contact-line{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px}
.contact-label{min-width:5em;font-family:var(--font-serif);letter-spacing:.1em;color:var(--barley)}
.contact-value{font-family:var(--font-mono);font-size:12.5px;letter-spacing:.01em;color:var(--ice);word-break:break-all}
.footer-service{max-width:48ch;font-family:var(--font-serif);font-size:12.5px;line-height:1.7;color:rgba(191,208,216,.9)}

.footer-cols{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
.footer-col-title{
  margin:0 0 14px;padding-bottom:10px;border-bottom:1px solid rgba(191,208,216,.28);
  font-family:var(--font-display);font-size:13px;font-weight:700;letter-spacing:.18em;color:var(--barley);
}
.footer-list{display:grid;gap:10px}
.footer-link{
  display:inline-block;font-size:14px;color:rgba(244,246,244,.82);text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease);
}
.footer-link:hover{color:var(--metal);border-bottom-color:var(--barley)}

.footer-scale{
  height:8px;border-top:1px solid rgba(191,208,216,.22);
  background-image:repeating-linear-gradient(90deg,rgba(235,203,106,.45) 0 1px,transparent 1px 48px);
}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px 24px;padding-top:18px;padding-bottom:26px}
.legal-line{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.06em;color:var(--mist)}

@media (max-width:900px){
  .footer-top{grid-template-columns:minmax(0,1fr);gap:36px;padding:44px 0 28px}
}
@media (max-width:560px){
  .footer-cols{grid-template-columns:minmax(0,1fr)}
  .contact-label{min-width:auto}
}

/* ==========================================================================
   长文辅助：返回顶部 / 复制提示 / 渐显
   ========================================================================== */
.back-top{
  position:fixed;right:18px;bottom:18px;z-index:80;
  display:inline-flex;align-items:center;gap:8px;padding:10px 14px;
  background:var(--lake-deep);color:var(--metal);border:1px solid var(--metal);
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.12em;cursor:pointer;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity var(--t-mid) var(--ease),transform var(--t-mid) var(--ease),visibility var(--t-mid) var(--ease),background var(--t-fast) var(--ease);
}
.back-top:hover{background:var(--lake);color:var(--metal)}
.back-top.is-visible{opacity:1;visibility:visible;transform:none}
.back-top-arrow{width:0;height:0;border-left:5px solid transparent;border-right:5px solid transparent;border-bottom:7px solid currentColor}
@media (max-width:640px){
  .back-top{right:12px;bottom:12px;padding:12px}
  .back-top-text{display:none}
}

.copy-toast{
  position:fixed;left:50%;bottom:24px;z-index:90;
  padding:10px 18px;background:var(--ink);color:var(--metal);border:1px solid var(--metal);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;
  opacity:0;visibility:hidden;transform:translate(-50%,12px);
  transition:opacity var(--t-mid) var(--ease),transform var(--t-mid) var(--ease),visibility var(--t-mid) var(--ease);
}
.copy-toast.is-visible{opacity:1;visibility:visible;transform:translate(-50%,0)}

[data-reveal]{opacity:0;transform:translateY(14px);transition:opacity var(--t-slow) var(--ease),transform var(--t-slow) var(--ease)}
[data-reveal].is-revealed{opacity:1;transform:none}

@media (min-width:900px){
  :root{--gutter:32px}
}

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