/* ===== /assets/site.css — 飞亚体育官网 共享外壳 ===== */

/* ---------- 1. reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
html.nav-open{overflow:hidden}
body{margin:0}
h1,h2,h3,h4,h5,p,ul,ol,figure,blockquote,hr{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{display:block;max-width:100%;height:auto}
button{font:inherit;color:inherit;background:none;border:0}
a{color:inherit;text-decoration:none}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:1px}

/* ---------- 2. tokens ---------- */
:root{
  --night:#0A1020;
  --panel:#11151C;
  --line:#2A3A58;
  --cyan:#00E5C7;
  --orange:#FF7A1A;
  --text:#E8EEF7;
  --muted:#8A99B5;
  --green:#3DD68C;
  --amber:#FFB020;
  --violet:#3B2A66;
  --shell-w:1180px;
  --gutter:clamp(16px,4vw,40px);
  --r:2px;
  --font-display:"Noto Sans SC Condensed","Barlow Condensed","Oswald","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --ease:cubic-bezier(.22,.72,.28,1);
}

/* ---------- 3. 基础排版 ---------- */
body{
  font-family:var(--font-body);
  font-size:16px;
  font-weight:400;
  line-height:1.75;
  color:var(--text);
  background-color:var(--night);
  background-image:
    repeating-linear-gradient(0deg,rgba(42,58,88,.16) 0 1px,transparent 1px 72px),
    repeating-linear-gradient(90deg,rgba(42,58,88,.11) 0 1px,transparent 1px 72px),
    radial-gradient(880px 420px at 84% -6%,rgba(0,229,199,.10),transparent 62%),
    radial-gradient(720px 380px at 4% 6%,rgba(255,122,26,.07),transparent 60%),
    linear-gradient(180deg,#0A1020 0%,#080C18 100%);
  background-repeat:repeat,repeat,no-repeat,no-repeat,no-repeat;
}
h1,h2,h3,h4,h5,.section__title{font-family:var(--font-display);font-weight:800;line-height:1.08;letter-spacing:.01em}
h1{font-size:clamp(2rem,5vw,3.5rem);letter-spacing:-.01em}
h2{font-size:clamp(1.5rem,3vw,2.2rem)}
h3{font-size:clamp(1.05rem,1.6vw,1.3rem)}
p{margin-bottom:1em}
p:last-child{margin-bottom:0}
strong{font-weight:700}
::selection{background:rgba(0,229,199,.28);color:#fff}

/* ---------- 4. 容器与工具 ---------- */
.shell{width:100%;max-width:var(--shell-w);margin:0 auto;padding-left:var(--gutter);padding-right:var(--gutter)}
.mono{font-family:var(--font-mono);letter-spacing:.02em;font-variant-numeric:tabular-nums}
.text-muted{color:var(--muted)}
.divider{height:1px;border:0;background:linear-gradient(90deg,var(--line),rgba(42,58,88,0));margin:clamp(20px,3vw,34px) 0}
.link-underline{color:var(--text);border-bottom:2px solid rgba(0,229,199,.45);padding-bottom:1px;transition:border-color .2s ease,color .2s ease}
.link-underline:hover{color:var(--cyan);border-bottom-color:var(--cyan)}

/* ---------- 5. skip link ---------- */
.skip-link{position:absolute;left:8px;top:-70px;z-index:220;background:var(--cyan);color:#04121A;font-weight:700;font-size:14px;padding:10px 18px;border-radius:var(--r);transition:top .18s ease}
.skip-link:focus{top:8px;color:#04121A}

/* ---------- 6. header ---------- */
.site-header{position:sticky;top:0;z-index:100;background:rgba(10,16,32,.93);border-bottom:1px solid var(--line);backdrop-filter:blur(10px);transition:box-shadow .25s ease,background-color .25s ease}
.site-header.is-scrolled{background:rgba(8,12,24,.97);box-shadow:0 14px 34px -22px rgba(0,0,0,.95)}
.scroll-progress{position:absolute;left:0;bottom:-1px;height:2px;width:0;background:linear-gradient(90deg,var(--cyan),var(--orange));transition:width .12s linear;z-index:3}

.cmdbar{border-bottom:1px solid rgba(42,58,88,.75);background:linear-gradient(90deg,rgba(59,42,102,.42),rgba(17,21,28,.65) 46%,rgba(17,21,28,.65))}
.cmdbar__inner{display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:36px;padding-top:4px;padding-bottom:4px}
.cmdbar__line{font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;color:var(--muted);text-transform:uppercase}
.cmdbar__right{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}
.status-pill{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.04em;color:var(--cyan);border:1px solid rgba(0,229,199,.3);background:rgba(0,229,199,.06);padding:3px 10px;border-radius:999px;white-space:nowrap}
.status-pill__dot{width:7px;height:7px;border-radius:50%;background:var(--cyan);flex:0 0 auto;animation:pulse 2.6s infinite}
.status-pill__text{line-height:1.4}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(0,229,199,.55)}
  70%{box-shadow:0 0 0 8px rgba(0,229,199,0)}
  100%{box-shadow:0 0 0 0 rgba(0,229,199,0)}
}
.utility-nav{display:flex;align-items:center;gap:16px}
.utility-nav__link{font-size:12.5px;color:var(--muted);border-bottom:1px solid transparent;transition:color .2s ease,border-color .2s ease}
.utility-nav__link:hover{color:var(--text);border-bottom-color:var(--line)}
.utility-nav__link[aria-current="page"]{color:var(--cyan);border-bottom-color:var(--cyan)}

.masthead{background:rgba(10,16,32,.6)}
.masthead__inner{display:flex;align-items:center;gap:22px;min-height:68px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand__mark{display:grid;place-items:center;width:38px;height:38px;flex:0 0 auto;border:1px solid rgba(0,229,199,.7);border-radius:var(--r);background:linear-gradient(135deg,rgba(0,229,199,.18),rgba(0,229,199,0));color:var(--cyan);font-family:var(--font-display);font-weight:900;font-size:15px;letter-spacing:.04em}
.brand__text{display:block}
.brand__name{display:block;font-family:var(--font-display);font-weight:800;font-size:17px;line-height:1.2;letter-spacing:.02em;color:var(--text)}
.brand__sub{display:block;font-family:var(--font-mono);font-size:10px;letter-spacing:.16em;color:var(--muted);text-transform:uppercase}
.brand:hover .brand__name{color:var(--cyan)}

.nav-toggle{display:none;align-items:center;gap:10px;margin-left:auto;padding:9px 13px;border:1px solid var(--line);border-radius:var(--r);background:rgba(17,21,28,.9);font-family:var(--font-display);font-weight:700;font-size:13px;letter-spacing:.06em;color:var(--text);cursor:pointer}
.nav-toggle__bars{position:relative;display:block;width:16px;height:10px}
.nav-toggle__bars::before,
.nav-toggle__bars::after{content:"";position:absolute;left:0;right:0;height:2px;background:var(--cyan);transition:transform .22s ease,top .22s ease}
.nav-toggle__bars::before{top:0}
.nav-toggle__bars::after{top:8px}
.nav-toggle__label{line-height:1}
.site-header[data-open] .nav-toggle{border-color:var(--cyan);color:var(--cyan)}
.site-header[data-open] .nav-toggle__bars::before{top:4px;transform:rotate(45deg)}
.site-header[data-open] .nav-toggle__bars::after{top:4px;transform:rotate(-45deg)}

.primary-nav{margin-left:auto;display:flex;align-items:center;gap:18px}
.primary-nav__list{display:flex;align-items:center;gap:2px}
.primary-nav__list a{display:flex;align-items:baseline;gap:7px;padding:10px 12px;border-bottom:2px solid transparent;font-size:14px;font-weight:500;color:var(--text);transition:color .2s ease,background-color .2s ease,border-color .2s ease}
.primary-nav__idx{font-family:var(--font-mono);font-size:10px;letter-spacing:.08em;color:var(--muted)}
.primary-nav__list a:hover{color:var(--cyan);background:rgba(0,229,199,.06)}
.primary-nav__list a[aria-current="page"]{color:var(--cyan);border-bottom-color:var(--cyan);background:linear-gradient(180deg,rgba(0,229,199,0),rgba(0,229,199,.12))}
.primary-nav__list a[aria-current="page"] .primary-nav__idx{color:var(--cyan)}
.primary-nav__cta{display:flex;align-items:center}
.primary-nav__foot{display:none;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.1em;color:var(--muted);text-transform:uppercase}

/* ---------- 7. 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 20px;border:1px solid var(--line);border-radius:var(--r);font-family:var(--font-display);font-weight:700;font-size:14px;letter-spacing:.05em;color:var(--text);background:rgba(17,21,28,.7);cursor:pointer;transition:transform .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease}
.btn:hover{transform:translateY(-1px)}
.btn--primary{background:var(--cyan);border-color:var(--cyan);color:#04121A;box-shadow:0 10px 26px -14px rgba(0,229,199,.9)}
.btn--primary:hover{background:#38FCDA;color:#04121A}
.btn--ghost{border-color:var(--line);color:var(--text)}
.btn--ghost:hover{border-color:var(--cyan);color:var(--cyan)}
.btn--orange{background:var(--orange);border-color:var(--orange);color:#1A0B00}
.btn--orange:hover{background:#FF9142;color:#1A0B00}
.btn--sm{padding:8px 14px;font-size:12.5px}

/* ---------- 8. 面包屑 ---------- */
.breadcrumb{margin-top:18px}
.breadcrumb__list{display:flex;flex-wrap:wrap;gap:8px;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.06em;color:var(--muted);text-transform:uppercase}
.breadcrumb__list li{display:flex;align-items:center;gap:8px}
.breadcrumb__list li::after{content:"/";color:var(--line)}
.breadcrumb__list li:last-child::after{content:""}
.breadcrumb__list a{color:var(--muted);transition:color .2s ease}
.breadcrumb__list a:hover{color:var(--cyan)}
.breadcrumb__list [aria-current="page"]{color:var(--cyan)}

/* ---------- 9. 章节骨架 ---------- */
.section{padding:clamp(28px,4.5vw,58px) 0}
.section__head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;padding-bottom:14px;margin-bottom:clamp(18px,2.6vw,30px);border-bottom:1px solid var(--line)}
.section__title{font-size:clamp(1.35rem,2.6vw,2.1rem)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--cyan)}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--cyan)}
.lede{font-size:clamp(15px,1.4vw,17px);line-height:1.8;color:var(--muted);max-width:64ch}

/* ---------- 10. 网格 ---------- */
.grid{display:grid;gap:clamp(16px,2.4vw,26px)}
.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(0,280px) minmax(0,1fr)}

/* ---------- 11. 面板 / 标签 / 数值 ---------- */
.panel{position:relative;border:1px solid var(--line);border-radius:var(--r);background:linear-gradient(180deg,rgba(17,21,28,.94),rgba(12,16,24,.94));box-shadow:0 16px 34px -28px rgba(0,0,0,.95)}
.panel::before{content:"";position:absolute;left:0;top:-1px;width:36px;height:2px;background:var(--cyan)}
.panel--violet{background:linear-gradient(180deg,rgba(59,42,102,.55),rgba(17,21,28,.94))}
.panel__head{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;padding:14px 18px;border-bottom:1px solid rgba(42,58,88,.7)}
.panel__title{font-size:15px;font-weight:800;letter-spacing:.04em}
.panel__meta{font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;color:var(--muted)}
.panel__body{padding:18px}

.tag{display:inline-flex;align-items:center;gap:6px;padding:3px 9px;border:1px solid var(--line);border-radius:999px;background:rgba(42,58,88,.24);color:var(--muted);font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;white-space:nowrap}
.tag--cyan{color:var(--cyan);border-color:rgba(0,229,199,.42);background:rgba(0,229,199,.08)}
.tag--orange{color:var(--orange);border-color:rgba(255,122,26,.42);background:rgba(255,122,26,.08)}
.tag--green{color:var(--green);border-color:rgba(61,214,140,.42);background:rgba(61,214,140,.08)}
.tag--amber{color:var(--amber);border-color:rgba(255,176,32,.42);background:rgba(255,176,32,.08)}
.tag--violet{color:#BCA9F5;border-color:rgba(59,42,102,.95);background:rgba(59,42,102,.55)}

.stat{display:grid;gap:4px}
.stat__value{font-family:var(--font-mono);font-weight:700;font-size:clamp(1.4rem,3vw,2rem);line-height:1.1;letter-spacing:-.01em;font-variant-numeric:tabular-nums}
.stat__label{font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.stat--accent .stat__value{color:var(--cyan)}

/* ---------- 12. 图片容器 ---------- */
.media{position:relative;display:block;margin:0;overflow:hidden;border:1px solid var(--line);border-radius:var(--r);background:linear-gradient(140deg,rgba(42,58,88,.5),rgba(17,21,28,.95))}
.media__frame{position:relative;width:100%;aspect-ratio:16/10}
.media img{width:100%;height:100%;object-fit:cover;display:block}
.media__frame img{position:absolute;inset:0}
.media--wide .media__frame{aspect-ratio:21/9}
.media--tall .media__frame{aspect-ratio:3/4}
.media--square .media__frame{aspect-ratio:1/1}
.media__caption{padding:10px 14px;border-top:1px solid rgba(42,58,88,.7);font-size:12.5px;line-height:1.6;color:var(--muted);background:rgba(10,16,32,.7)}
.media--scan::after{content:"";position:absolute;inset:0;pointer-events:none;background:repeating-linear-gradient(0deg,rgba(0,229,199,.07) 0 1px,transparent 1px 4px)}

/* ---------- 13. footer ---------- */
.site-footer{margin-top:clamp(48px,7vw,96px);border-top:1px solid var(--line);background:linear-gradient(180deg,rgba(17,21,28,.92),rgba(8,12,24,1))}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.25fr;gap:clamp(22px,3vw,40px);padding:clamp(34px,5vw,58px) 0 clamp(24px,3vw,38px)}
.footer-brand{display:flex;flex-direction:column;gap:14px}
.footer-brand__top{display:flex;align-items:center;gap:12px}
.footer-brand__name{font-family:var(--font-display);font-weight:800;font-size:16px;letter-spacing:.03em}
.footer-brand__desc{font-size:13.5px;line-height:1.75;color:var(--muted);max-width:36ch}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px}
.footer-col__title{margin-bottom:14px;font-family:var(--font-mono);font-size:11px;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--cyan)}
.footer-col__list{display:grid;gap:9px}
.footer-col__list a{font-size:13.5px;color:var(--muted);transition:color .2s ease}
.footer-col__list a:hover{color:var(--text)}
.footer-col__list a[aria-current="page"]{color:var(--cyan)}
.footer-contact{display:grid;gap:14px}
.footer-contact__row{display:grid;gap:4px;padding-left:12px;border-left:2px solid var(--line)}
.footer-contact__label{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.footer-contact__value{font-size:13.5px;line-height:1.7;color:var(--text);word-break:break-word}
.footer-contact__value--mono{font-family:var(--font-mono);letter-spacing:.02em}
.copy-btn{justify-self:start;margin-top:4px;padding:4px 10px;border:1px solid rgba(0,229,199,.4);border-radius:999px;background:rgba(0,229,199,.08);color:var(--cyan);font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;cursor:pointer;transition:background-color .2s ease,color .2s ease}
.copy-btn:hover{background:rgba(0,229,199,.2)}
.copy-btn.is-done{background:var(--cyan);color:#04121A;border-color:var(--cyan)}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;padding:18px 0 12px;border-top:1px solid rgba(42,58,88,.8);font-size:12.5px;color:var(--muted)}
.footer-legal__links{display:flex;flex-wrap:wrap;gap:18px}
.footer-legal__links a{color:var(--muted);transition:color .2s ease}
.footer-legal__links a:hover{color:var(--cyan)}
.footer-legal__links a[aria-current="page"]{color:var(--cyan)}
.footer-meta{font-family:var(--font-mono);font-size:12px;letter-spacing:.03em;color:var(--muted)}
.footer-note{padding-bottom:clamp(24px,4vw,44px);font-size:12.5px;line-height:1.7;color:var(--muted)}

/* ---------- 14. 显现动效 ---------- */
.js [data-reveal]{opacity:0;transform:translateY(16px);transition:opacity .55s var(--ease),transform .55s var(--ease)}
.js [data-reveal].is-visible{opacity:1;transform:none}
.js [data-reveal][data-delay="1"]{transition-delay:.06s}
.js [data-reveal][data-delay="2"]{transition-delay:.12s}
.js [data-reveal][data-delay="3"]{transition-delay:.18s}
.js [data-reveal][data-delay="4"]{transition-delay:.24s}
.js [data-reveal][data-delay="5"]{transition-delay:.3s}

/* ---------- 15. 响应式 ---------- */
@media (max-width:1080px){
  .nav-toggle{display:inline-flex}
  .primary-nav{position:fixed;left:0;right:0;top:0;bottom:0;z-index:90;display:block;margin:0;overflow-y:auto;padding:132px var(--gutter) 48px;background:linear-gradient(180deg,rgba(10,16,32,.99),rgba(8,12,24,.99));opacity:0;visibility:hidden;transform:translateY(-10px);transition:opacity .24s ease,transform .24s ease,visibility .24s ease}
  .site-header[data-open] .primary-nav{opacity:1;visibility:visible;transform:none}
  .primary-nav__list{display:block;border-top:1px solid rgba(42,58,88,.8)}
  .primary-nav__list li{border-bottom:1px solid rgba(42,58,88,.8)}
  .primary-nav__list a{padding:16px 4px;border-bottom:0;font-family:var(--font-display);font-weight:800;font-size:19px}
  .primary-nav__list a[aria-current="page"]{background:linear-gradient(90deg,rgba(0,229,199,.14),transparent 70%)}
  .primary-nav__idx{font-size:12px;color:var(--cyan)}
  .primary-nav__cta{margin-top:28px}
  .primary-nav__cta .btn{width:100%}
  .primary-nav__foot{display:block;margin-top:20px}
}
@media (max-width:1024px){
  .grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid--aside{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
  .grid--2,.grid--3{grid-template-columns:1fr}
  .media__frame{aspect-ratio:16/11}
  .media--wide .media__frame{aspect-ratio:16/9}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-brand__desc{max-width:none}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:640px){
  .cmdbar__inner{justify-content:flex-start}
  .cmdbar__line{display:none}
  .cmdbar__right{gap:12px;justify-content:flex-start}
  .status-pill__text{font-size:11px}
  .utility-nav{gap:12px}
  .brand__sub{display:none}
  .masthead__inner{min-height:60px;gap:14px}
}

/* ---------- 16. 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}
  .js [data-reveal]{opacity:1 !important;transform:none !important}
  .scroll-progress{transition:none}
  .status-pill__dot{animation:none;box-shadow:0 0 0 3px rgba(0,229,199,.22)}
}