/* ===== 易倍体育主站 · 共享外壳样式 ===== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,p,figure,blockquote,dl,dd{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img,svg,video{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;padding:0}
a{color:inherit;text-decoration:none}
:focus-visible{outline:2px dashed var(--yellow);outline-offset:3px;border-radius:8px}

:root{
  --night:#0A1712;
  --turf:#12321F;
  --grass:#1D5334;
  --paper:#F4EAD7;
  --ink:#101613;
  --red:#FF3B57;
  --yellow:#FFD23F;
  --blue:#37C6FF;
  --chalk:#EDF4EE;
  --mist:#8FA79A;
  --line:rgba(29,83,52,.9);
  --line-soft:rgba(143,167,154,.26);
  --font-display:"Oswald","Arial Narrow","Noto Sans SC",system-ui,sans-serif;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,serif;
  --font-body:"PingFang SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-numeric:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --font-label:"PingFang SC","Noto Sans SC",system-ui,sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
  --radius-lg:28px;
  --radius-md:18px;
  --radius-sm:12px;
  --pill:999px;
  --shell:1200px;
  --gutter:clamp(1.1rem,4vw,2rem);
  --shadow-card:0 22px 44px -30px rgba(0,0,0,.95);
}

body{
  min-height:100vh;
  background:
    radial-gradient(1200px 520px at 82% -8%, rgba(55,198,255,.10), transparent 62%),
    radial-gradient(900px 480px at 6% 12%, rgba(255,59,87,.07), transparent 60%),
    var(--night);
  color:var(--chalk);
  font-family:var(--font-body);
  font-size:1rem;
  line-height:1.75;
  letter-spacing:.01em;
}

/* ===== 通用排版 ===== */
h1,h2,h3,h4{font-weight:700;line-height:1.2}
.u-display{font-family:var(--font-display);font-weight:700;line-height:1.02;letter-spacing:.01em}
.u-serif{font-family:var(--font-serif);font-weight:600;line-height:1.3}
.u-numeric{font-family:var(--font-numeric);font-weight:600;letter-spacing:.02em;font-variant-numeric:tabular-nums}
.u-mist{color:var(--mist)}
.u-small{font-size:.82rem}
.u-center{text-align:center}
.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}

/* ===== 容器与分区 ===== */
.container{width:min(var(--shell),100% - var(--gutter) * 2);margin-inline:auto}
.container--narrow{width:min(760px,100% - var(--gutter) * 2);margin-inline:auto}
.section{position:relative;padding:clamp(3rem,7vw,6rem) 0}
.section--turf{background:linear-gradient(180deg,rgba(18,50,31,.72),rgba(10,23,18,.35));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section--paper{background:var(--paper);color:var(--ink)}
.section--paper .section__lede{color:#4a5b52}
.section--paper a{color:#0b5f88}
.section--paper strong{color:var(--ink)}
.section__head{display:flex;align-items:baseline;flex-wrap:wrap;gap:.75rem 1rem;margin-bottom:clamp(1.5rem,3vw,2.5rem)}
.section__index{font-family:var(--font-numeric);font-size:.8rem;letter-spacing:.16em;color:var(--yellow);border:1px solid rgba(255,210,63,.45);border-radius:var(--pill);padding:.22rem .7rem}
.section--paper .section__index{color:#8a5a00;border-color:rgba(16,22,19,.28)}
.section__title{font-family:var(--font-serif);font-weight:600;font-size:clamp(1.5rem,2.6vw,2.25rem);letter-spacing:.01em}
.section__lede{color:var(--mist);font-size:.95rem;max-width:58ch;flex:1 1 260px}
.rule{height:2px;border:0;background:linear-gradient(90deg,var(--blue),var(--yellow) 45%,var(--red) 75%,transparent);border-radius:2px}

/* ===== 跳转链接 ===== */
.skip-link{position:absolute;left:1rem;top:-120px;z-index:200;background:var(--yellow);color:var(--ink);font-weight:600;padding:.6rem 1.1rem;border-radius:0 0 var(--radius-sm) var(--radius-sm);transition:top .2s var(--ease)}
.skip-link:focus{top:0}

/* ===== 头部 ===== */
.site-header{position:sticky;top:0;z-index:60;background:linear-gradient(180deg,#0A1712 0%,#0E2418 100%);border-bottom:1px solid var(--line);box-shadow:0 18px 40px -34px rgba(0,0,0,1)}
.header-shell{width:min(var(--shell),100% - var(--gutter) * 2);margin-inline:auto}
.header-top{display:flex;align-items:center;gap:1rem;padding:.8rem 0;min-height:74px}
.brand{display:flex;align-items:center;gap:.75rem;min-width:0}
.brand-mark{flex:0 0 auto;display:grid;place-items:center;width:44px;height:44px;border-radius:14px;background:linear-gradient(140deg,var(--grass),#08130E);border:1px solid rgba(55,198,255,.45);color:var(--yellow);font-family:var(--font-display);font-size:1rem;letter-spacing:.08em}
.brand-text{display:flex;flex-direction:column;line-height:1.3;min-width:0}
.brand-line{font-family:var(--font-display);font-size:1.15rem;letter-spacing:.05em;color:var(--chalk)}
.brand-note{font-size:.72rem;color:var(--mist);letter-spacing:.06em;white-space:nowrap}
.chapter-rail{display:flex;gap:.4rem;margin-left:auto;flex-wrap:wrap;justify-content:flex-end}
.chapter-chip{font-family:var(--font-label);font-size:.72rem;letter-spacing:.14em;color:var(--mist);padding:.28rem .62rem;border:1px dashed var(--line-soft);border-radius:var(--pill)}
.header-actions{display:flex;align-items:center;gap:.6rem}
.site-header.is-condensed .header-top{min-height:60px;padding:.5rem 0}
.site-header.is-condensed .brand-mark{width:38px;height:38px}

/* 导航 */
.site-nav{display:flex;align-items:center;padding-bottom:.85rem;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.site-nav::-webkit-scrollbar{display:none}
.nav-list{display:flex;align-items:center;gap:.5rem}
.nav-item{flex:0 0 auto}
.nav-link{display:inline-block;padding:.5rem 1rem;border-radius:var(--pill);border:1px solid transparent;background:rgba(29,83,52,.34);color:var(--chalk);font-size:.9rem;white-space:nowrap;transition:transform .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease)}
.nav-link:hover{background:rgba(55,198,255,.14);border-color:rgba(55,198,255,.65);color:#fff;transform:translateY(-2px)}
.nav-link[aria-current="page"]{background:var(--yellow);border-color:var(--yellow);color:var(--ink);font-weight:600}

/* 移动导航按钮 */
.nav-toggle{display:none;align-items:center;gap:.55rem;margin-left:auto;padding:.5rem .9rem;border-radius:var(--pill);border:1px solid var(--line);background:rgba(29,83,52,.38);color:var(--chalk);font-size:.82rem;letter-spacing:.08em;cursor:pointer}
.nav-toggle:hover{border-color:var(--blue)}
.nav-toggle__bars{position:relative;display:block;width:18px;height:2px;border-radius:2px;background:var(--yellow)}
.nav-toggle__bars::before,.nav-toggle__bars::after{content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--yellow);transition:transform .2s 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{transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{transform:translateY(-6px) rotate(-45deg)}

/* 阅读进度 */
.progress-track{position:relative;height:3px;background:rgba(29,83,52,.55);overflow:hidden}
.progress-bar{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--blue),var(--yellow) 55%,var(--red));transition:width .12s linear}
@keyframes nav-in{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}

/* ===== 按钮 ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.68rem 1.25rem;border-radius:var(--pill);border:1px solid transparent;font-family:var(--font-label);font-size:.85rem;font-weight:500;letter-spacing:.06em;cursor:pointer;transition:transform .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease)}
.btn--primary{background:var(--red);color:#fff;box-shadow:0 10px 26px -14px rgba(255,59,87,.9)}
.btn--primary:hover{background:#ff5c73;color:#fff;transform:translateY(-2px)}
.btn--ghost{background:transparent;border-color:rgba(55,198,255,.6);color:var(--blue)}
.btn--ghost:hover{background:rgba(55,198,255,.14);color:#fff;transform:translateY(-2px)}
.btn--paper{background:var(--ink);color:var(--paper)}
.btn--paper:hover{background:#22302a;color:var(--paper);transform:translateY(-2px)}
.btn--small{padding:.45rem .95rem;font-size:.78rem}

/* ===== 页脚 ===== */
.site-footer{margin-top:clamp(3.5rem,7vw,6rem);background:linear-gradient(180deg,#0A1712,#12321F 78%);border-top:1px solid var(--line);color:var(--chalk)}
.footer-shell{width:min(var(--shell),100% - var(--gutter) * 2);margin-inline:auto;padding:clamp(2rem,5vw,3.25rem) 0 1.25rem}
.footer-top{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,2fr) minmax(0,1.15fr);gap:2rem 2.5rem;align-items:start}
.footer-brand{display:grid;gap:.6rem;align-content:start}
.footer-brand__mark{display:grid;place-items:center;width:46px;height:46px;border-radius:14px;background:linear-gradient(140deg,var(--grass),#08130E);border:1px solid rgba(255,210,63,.4);color:var(--yellow);font-family:var(--font-display);font-size:1rem;letter-spacing:.08em}
.footer-brand__name{font-family:var(--font-display);font-size:1.2rem;letter-spacing:.05em;color:var(--chalk)}
.footer-brand__slogan{font-family:var(--font-serif);font-size:.95rem;line-height:1.7;color:var(--mist);max-width:22ch}
.footer-columns{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1.5rem}
.footer-col__title{font-family:var(--font-label);font-size:.74rem;font-weight:500;letter-spacing:.18em;color:var(--mist);margin-bottom:.9rem}
.footer-links{display:grid;gap:.55rem}
.footer-link{display:inline-block;font-size:.9rem;color:var(--chalk);border-bottom:1px solid transparent;padding-bottom:2px;transition:color .2s var(--ease),border-color .2s var(--ease)}
.footer-link:hover{color:var(--blue);border-color:rgba(55,198,255,.55)}
.footer-contact{display:grid;gap:.75rem;align-content:start;border-left:2px solid rgba(255,210,63,.32);padding-left:1.1rem}
.contact-item{display:grid;gap:.1rem}
.contact-label{font-family:var(--font-label);font-size:.72rem;letter-spacing:.14em;color:var(--mist)}
.contact-value{font-family:var(--font-numeric);font-size:.9rem;letter-spacing:.02em;color:var(--chalk);word-break:break-word}
.footer-contact__note{font-size:.78rem;line-height:1.75;color:var(--mist);margin-top:.35rem}
.footer-bottom{display:flex;flex-wrap:wrap;gap:.6rem 1.5rem;justify-content:space-between;align-items:center;margin-top:2.25rem;padding-top:1.1rem;border-top:1px solid rgba(29,83,52,.75);font-size:.78rem;color:var(--mist)}
.footer-region{font-family:var(--font-numeric);letter-spacing:.04em}
.footer-meta{margin:0}

/* ===== 面包屑 ===== */
.breadcrumb{padding:1.4rem 0 .5rem;font-size:.8rem}
.breadcrumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:.45rem}
.breadcrumb__item{display:inline-flex;align-items:center;gap:.45rem;color:var(--mist)}
.breadcrumb__item + .breadcrumb__item::before{content:"/";color:rgba(143,167,154,.55)}
.breadcrumb__link{color:var(--mist)}
.breadcrumb__link:hover{color:var(--blue)}
.breadcrumb__current{color:var(--chalk)}

/* ===== 面板与卡片 ===== */
.panel-paper{background:var(--paper);color:var(--ink);border-radius:var(--radius-lg);padding:clamp(1.35rem,4vw,2.75rem);box-shadow:var(--shadow-card)}
.panel-paper a{color:#0b5f88}
.card{position:relative;background:linear-gradient(160deg,rgba(18,50,31,.95),rgba(10,23,18,.95));border:1px solid var(--line);border-radius:var(--radius-lg);padding:1.35rem 1.45rem;box-shadow:var(--shadow-card);transition:transform .25s var(--ease),border-color .25s var(--ease)}
.card:hover{transform:translateY(-4px);border-color:rgba(55,198,255,.85)}
.card__title{font-family:var(--font-serif);font-weight:600;font-size:1.15rem;margin:.35rem 0 .5rem}
.card__meta{font-family:var(--font-label);font-size:.76rem;letter-spacing:.1em;color:var(--mist)}
.card--paper{background:var(--paper);color:var(--ink);border-color:rgba(16,22,19,.12)}
.card--paper .card__meta{color:#4a5b52}
.card--accent{border-left:3px solid var(--red)}
.card--stack{align-self:start}
.card--stack:nth-child(even){transform:translateY(14px)}
.card--stack:hover{transform:translateY(10px)}

/* ===== 胶囊标签 ===== */
.capsule-group{display:flex;flex-wrap:wrap;gap:.5rem}
.capsule{display:inline-flex;align-items:center;gap:.4rem;padding:.42rem .9rem;border-radius:var(--pill);border:1px solid var(--line);background:rgba(29,83,52,.3);color:var(--chalk);font-family:var(--font-label);font-size:.8rem;letter-spacing:.06em;cursor:pointer;transition:transform .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease)}
.capsule:hover{border-color:var(--blue);color:#fff;transform:translateY(-2px)}
.capsule[aria-pressed="true"],.capsule.is-active{background:var(--yellow);border-color:var(--yellow);color:var(--ink);font-weight:600}
.capsule--red{border-color:rgba(255,59,87,.6);color:#ffd7de}
.capsule--red.is-active,.capsule--red[aria-pressed="true"]{background:var(--red);color:#fff;border-color:var(--red)}
.capsule--blue{border-color:rgba(55,198,255,.6);color:#d3f1ff}
.capsule--blue.is-active,.capsule--blue[aria-pressed="true"]{background:var(--blue);color:var(--ink);border-color:var(--blue)}
.section--paper .capsule{border-color:rgba(16,22,19,.22);background:rgba(16,22,19,.05);color:var(--ink)}

/* ===== 数据栏 ===== */
.stat-panel{border:1px solid var(--line);border-radius:var(--radius-lg);background:linear-gradient(180deg,rgba(10,23,18,.85),rgba(18,50,31,.6));overflow:hidden}
.stat-row{display:grid;grid-template-columns:2.5ch minmax(0,1fr) auto;align-items:center;gap:1rem;padding:.9rem 1.15rem;border-bottom:1px solid rgba(29,83,52,.62)}
.stat-row:last-child{border-bottom:0}
.stat-rank{font-family:var(--font-numeric);font-size:.95rem;color:var(--mist)}
.stat-label{font-size:.95rem;color:var(--chalk);min-width:0}
.stat-value{font-family:var(--font-numeric);font-weight:600;font-size:1.3rem;letter-spacing:.02em;color:var(--yellow);font-variant-numeric:tabular-nums;text-align:right}
.stat-value--red{color:var(--red)}
.stat-value--blue{color:var(--blue)}
.section--paper .stat-panel{border-color:rgba(16,22,19,.18);background:rgba(255,255,255,.5)}
.section--paper .stat-row{border-bottom-color:rgba(16,22,19,.12)}
.section--paper .stat-label{color:var(--ink)}
.section--paper .stat-value{color:#8a5a00}

/* ===== 时间线 ===== */
.timeline{position:relative;display:grid;gap:1.5rem;padding-left:1.5rem;border-left:2px solid var(--line)}
.timeline__item{position:relative;min-width:0}
.timeline__item::before{content:"";position:absolute;left:-1.95rem;top:.55rem;width:11px;height:11px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 4px rgba(55,198,255,.16)}
.timeline__time{font-family:var(--font-numeric);font-size:.8rem;letter-spacing:.06em;color:var(--mist)}
.timeline__title{font-family:var(--font-serif);font-weight:600;font-size:1.15rem;margin:.3rem 0 .35rem}

/* ===== 图片容器 ===== */
.media-frame{position:relative;overflow:hidden;border-radius:var(--radius-lg);border:1px solid var(--line);aspect-ratio:16/10;background:
  radial-gradient(120% 90% at 18% 0%, rgba(55,198,255,.26), transparent 58%),
  radial-gradient(90% 80% at 92% 100%, rgba(255,59,87,.18), transparent 60%),
  linear-gradient(150deg,#1D5334 0%,#0A1712 72%)}
.media-frame::after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(115deg,rgba(237,244,238,.05) 0 2px,transparent 2px 14px);pointer-events:none}
.media-frame img{width:100%;height:100%;object-fit:cover}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--tall{aspect-ratio:3/4}
.media-frame--square{aspect-ratio:1/1}
.media-frame--cut{clip-path:polygon(0 0,100% 3.5%,100% 100%,0 96.5%)}
.media-frame__badge{position:absolute;top:.85rem;left:.85rem;z-index:2;padding:.3rem .7rem;border-radius:var(--pill);background:var(--red);color:#fff;font-family:var(--font-label);font-size:.72rem;letter-spacing:.1em}
.media-frame__badge--yellow{background:var(--yellow);color:var(--ink)}
.media-frame__badge--blue{background:var(--blue);color:var(--ink)}
.media-frame__caption{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:1.4rem 1.1rem .85rem;background:linear-gradient(transparent,rgba(10,23,18,.92));font-size:.78rem;color:var(--chalk)}

/* ===== 正文面板 ===== */
.prose{font-size:1.0625rem;line-height:1.85;max-width:72ch}
.prose h2{font-family:var(--font-serif);font-weight:600;font-size:clamp(1.35rem,2.2vw,1.85rem);line-height:1.35;margin:2.5rem 0 1rem}
.prose h3{font-size:1.12rem;margin:2rem 0 .7rem}
.prose p{margin-bottom:1.15rem}
.prose ul,.prose ol{list-style:disc;padding-left:1.3rem;margin-bottom:1.15rem;display:grid;gap:.5rem}
.prose ol{list-style:decimal}
.prose strong{font-weight:600;text-decoration:underline;text-decoration-color:var(--yellow);text-decoration-thickness:2px;text-underline-offset:4px}
.prose blockquote{margin:1.75rem 0;padding:1rem 1.25rem;border-left:3px solid var(--red);border-radius:0 var(--radius-md) var(--radius-md) 0;background:rgba(29,83,52,.32);font-family:var(--font-serif);font-size:1.05rem}
.prose code{font-family:var(--font-numeric);font-size:.9em;background:rgba(55,198,255,.14);border-radius:6px;padding:.1em .4em}
.prose figure{margin:1.75rem 0}
.prose figcaption{font-size:.8rem;color:var(--mist);margin-top:.5rem}
.section--paper .prose blockquote{background:rgba(16,22,19,.06)}

/* ===== 栅格 ===== */
.grid{display:grid;gap:1.25rem}
.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--aside{grid-template-columns:minmax(0,1.6fr) minmax(0,1fr)}
.grid--gap-lg{gap:clamp(1.5rem,3vw,2.5rem)}
.stack{display:grid;gap:1rem}

/* ===== 滚动显现 ===== */
html.js [data-reveal]{opacity:0;transform:translateY(14px);transition:opacity .4s var(--ease),transform .4s var(--ease)}
html.js [data-reveal].is-visible{opacity:1;transform:none}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  .grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid--aside{grid-template-columns:minmax(0,1fr)}
  .footer-top{grid-template-columns:minmax(0,1fr)}
  .footer-contact{border-left:0;border-top:2px solid rgba(255,210,63,.32);padding-left:0;padding-top:1.1rem}
}
@media (max-width:900px){
  .chapter-rail{display:none}
  .nav-toggle{display:inline-flex}
  .site-nav{display:none;padding-bottom:0}
  .site-nav[data-open]{display:block;padding-bottom:1rem;animation:nav-in .24s var(--ease)}
  .nav-list{flex-direction:column;align-items:stretch;gap:.4rem}
  .nav-item{width:100%}
  .nav-link{display:block;width:100%;border-radius:var(--radius-md);background:rgba(18,50,31,.78);padding:.72rem 1rem}
  .grid--2,.grid--3{grid-template-columns:minmax(0,1fr)}
  .footer-columns{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-bottom{justify-content:flex-start}
}
@media (max-width:560px){
  .brand-note{display:none}
  .header-actions{display:none}
  .footer-columns{grid-template-columns:minmax(0,1fr)}
  .card--stack:nth-child(even){transform:none}
  .card--stack:hover{transform:translateY(-4px)}
  .stat-row{grid-template-columns:2.2ch minmax(0,1fr) auto;gap:.6rem;padding:.8rem .85rem}
  .stat-value{font-size:1.1rem}
}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  html.js [data-reveal]{opacity:1;transform:none}
  .card:hover,.card--stack:hover,.btn:hover,.nav-link:hover,.capsule:hover{transform:none}
}