/* ==========================================================
   E星体育 · /assets/site.css
   共享外壳：reset / 变量 / 中文排版 / 页头 / 页脚 / 基础组件
   ========================================================== */

/* ---------- 1. reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{margin:0;padding:0;-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:120px;}
body,h1,h2,h3,h4,h5,h6,p,ul,ol,li,figure,blockquote,dl,dt,dd{margin:0;padding:0;}
ul,ol{list-style:none;}
img,svg,video,canvas{display:block;max-width:100%;}
button,input,select,textarea{font:inherit;color:inherit;background:none;border:0;}
button{cursor:pointer;}
a{color:inherit;text-decoration:none;}
table{border-collapse:collapse;width:100%;}
main{display:block;}

/* ---------- 2. 变量 ---------- */
:root{
  --void:#070B14;
  --panel:#0E1526;
  --panel-hi:#121C31;
  --cyan:#16F0D0;
  --orange:#FF7A1A;
  --violet:#8B5CF6;
  --cream:#F4EFE6;
  --ink:#1A1410;
  --red:#C8452A;
  --mist:#9BA6B8;
  --green:#21D07A;

  --text:rgba(244,239,230,.92);
  --text-dim:var(--mist);
  --line:rgba(155,166,184,.22);
  --line-soft:rgba(155,166,184,.12);
  --line-cyan:rgba(22,240,208,.45);
  --line-violet:rgba(139,92,246,.5);
  --line-orange:rgba(255,122,26,.45);

  --font-display:"Oswald","Barlow Condensed","HarmonyOS Sans SC","Noto Sans SC",system-ui,sans-serif;
  --font-body:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --r-panel:24px;
  --r-card:18px;
  --r-num:12px;
  --r-pill:999px;

  --gutter:clamp(16px,4vw,64px);
  --shell-max:1320px;
  --slice:-6deg;
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ---------- 3. 基础与中文排版 ---------- */
body{
  min-height:100vh;
  background-color:var(--void);
  background-image:repeating-linear-gradient(to bottom,rgba(155,166,184,.04) 0 1px,transparent 1px 4px);
  background-attachment:fixed;
  color:var(--text);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
h1,.h1{font-family:var(--font-display);font-weight:600;font-size:clamp(30px,4.4vw,44px);line-height:1.14;letter-spacing:-.02em;color:var(--cream);}
h2,.h2{font-family:var(--font-display);font-weight:600;font-size:clamp(24px,3vw,30px);line-height:1.2;letter-spacing:-.02em;color:var(--cream);}
h3,.h3{font-family:var(--font-display);font-weight:600;font-size:clamp(19px,2.2vw,22px);line-height:1.3;letter-spacing:-.01em;color:var(--cream);}
p{max-width:66ch;}
.lede{font-size:clamp(17px,1.5vw,20px);line-height:1.75;color:rgba(244,239,230,.86);max-width:44ch;}
.body-text{max-width:42em;}
.mono{font-family:var(--font-mono);font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:var(--text-dim);}
strong{color:var(--cream);font-weight:600;}
::selection{background:var(--cyan);color:#04120F;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px;}

/* ---------- 4. 布局工具 ---------- */
.shell{width:min(var(--shell-max),calc(100% - var(--gutter) * 2));margin-inline:auto;}
.shell--narrow{width:min(820px,calc(100% - var(--gutter) * 2));margin-inline:auto;}
.section{padding-block:clamp(48px,7vw,110px);}
.section--tight{padding-block:clamp(28px,4vw,64px);}
.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--4{grid-template-columns:repeat(4,minmax(0,1fr));}
.grid-12{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:24px;}
.stack{display:flex;flex-direction:column;gap:clamp(12px,1.6vw,20px);}
.cluster{display:flex;flex-wrap:wrap;align-items:center;gap:12px;}
.rule{height:1px;background:var(--line);border:0;}
.slice{height:2px;margin-block:clamp(36px,6vw,84px);background:repeating-linear-gradient(90deg,rgba(155,166,184,.35) 0 1px,transparent 1px 14px);}
.slice-band{height:clamp(70px,11vw,160px);border-radius:var(--r-panel);transform:skewY(var(--slice));background:linear-gradient(100deg,rgba(22,240,208,.14),rgba(139,92,246,.08) 55%,transparent);border:1px solid var(--line-soft);}
.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;}

/* ---------- 5. 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:14px 26px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:rgba(14,21,38,.9);color:var(--cream);
  font-size:16px;font-weight:500;letter-spacing:.02em;line-height:1;
  transition:border-color .2s var(--ease),background .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease),transform .2s var(--ease);
}
.btn:hover{transform:translateY(-1px);}
.btn--primary{background:var(--cyan);color:#04120F;border-color:transparent;font-weight:700;box-shadow:0 0 0 1px rgba(22,240,208,.55),0 16px 40px -20px rgba(22,240,208,.95);}
.btn--primary:hover{box-shadow:0 0 0 1px rgba(22,240,208,.9),0 20px 48px -18px rgba(22,240,208,1);}
.btn--ghost{background:transparent;}
.btn--ghost:hover{border-color:var(--line-cyan);color:var(--cyan);background:rgba(22,240,208,.07);}
.btn--violet{background:rgba(139,92,246,.16);border-color:var(--line-violet);color:#DED4FF;}
.btn--violet:hover{background:rgba(139,92,246,.26);}
.btn--orange{background:rgba(255,122,26,.14);border-color:var(--line-orange);color:#FFD6B4;}
.btn--orange:hover{background:rgba(255,122,26,.22);}

/* ---------- 6. 面板 / 标签 / 数字 ---------- */
.panel{position:relative;border-radius:var(--r-panel);background:var(--panel);border:1px solid var(--line);padding:clamp(20px,3vw,36px);}
.panel--night{background:linear-gradient(160deg,var(--panel-hi),#0A1120);}
.panel--cream{background:var(--cream);color:var(--ink);border-color:rgba(26,20,16,.14);}
.panel--cream h1,.panel--cream h2,.panel--cream h3,.panel--cream .h1,.panel--cream .h2,.panel--cream .h3{color:var(--ink);}
.panel--cream p{color:rgba(26,20,16,.82);}
.panel--framed{padding:16px;background:transparent;border:1px solid var(--line);border-radius:var(--r-panel);}
.panel--framed::after{content:"";position:absolute;inset:0;border-radius:var(--r-panel);pointer-events:none;
  background:repeating-linear-gradient(90deg,rgba(155,166,184,.32) 0 1px,transparent 1px 16px) top left/100% 6px no-repeat;}

.tag{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--r-pill);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;
  border:1px solid var(--line);color:var(--mist);background:rgba(155,166,184,.06);}
.tag--cyan{color:var(--cyan);border-color:var(--line-cyan);background:rgba(22,240,208,.08);}
.tag--orange{color:var(--orange);border-color:var(--line-orange);background:rgba(255,122,26,.08);}
.tag--violet{color:#C4AEFB;border-color:var(--line-violet);background:rgba(139,92,246,.12);}
.tag--green{color:var(--green);border-color:rgba(33,208,122,.42);background:rgba(33,208,122,.08);}
.tag--red{color:#FFB3A0;border-color:rgba(200,69,42,.5);background:rgba(200,69,42,.14);}

.num{font-family:var(--font-display);font-weight:700;line-height:.95;letter-spacing:-.02em;font-variant-numeric:tabular-nums;}
.num--score{font-size:clamp(72px,14vw,180px);}
.num--price{font-size:clamp(44px,5vw,64px);}
.num--cyan{color:var(--cyan);text-shadow:0 0 34px rgba(22,240,208,.35);}
.num--orange{color:var(--orange);text-shadow:0 0 34px rgba(255,122,26,.3);}
.num--violet{color:var(--violet);text-shadow:0 0 34px rgba(139,92,246,.35);}
.num--cream{color:var(--cream);}

.eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-mono);
  font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--mist);}
.eyebrow::before{content:"";width:28px;height:1px;background:var(--cyan);flex:none;}

.breadcrumbs{font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;color:var(--mist);}
.breadcrumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.breadcrumbs li+li::before{content:"/";margin-right:8px;color:rgba(155,166,184,.5);}
.breadcrumbs a{transition:color .2s var(--ease);}
.breadcrumbs a:hover{color:var(--cyan);}

/* ---------- 7. 图形容器（页面阶段放 SVG / 图片） ---------- */
.media-frame{position:relative;overflow:hidden;border-radius:var(--r-card);border:1px solid var(--line);
  background:
    radial-gradient(130% 90% at 18% 8%,rgba(22,240,208,.12),transparent 62%),
    radial-gradient(110% 80% at 92% 96%,rgba(139,92,246,.14),transparent 60%),
    linear-gradient(160deg,var(--panel),#070B14);}
.media-frame::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:
    linear-gradient(to right,rgba(155,166,184,.16) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(155,166,184,.16) 1px,transparent 1px);
  background-size:36px 36px;}
.media-frame img,.media-frame svg{position:relative;z-index:1;width:100%;height:100%;object-fit:cover;}
.media-frame--wide{aspect-ratio:14/5;}
.media-frame--panorama{aspect-ratio:16/9;}
.media-frame--square{aspect-ratio:1/1;}
.media-frame--tall{aspect-ratio:3/4;}

/* ---------- 8. 页头 ---------- */
.skip-link{position:absolute;left:16px;top:-72px;z-index:200;padding:10px 18px;border-radius:var(--r-pill);
  background:var(--cyan);color:#04120F;font-family:var(--font-mono);font-size:13px;letter-spacing:.12em;
  transition:top .2s var(--ease);}
.skip-link:focus{top:14px;}

.site-header{position:sticky;top:0;z-index:100;border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,rgba(7,11,20,.97),rgba(10,16,28,.92));
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);}
.site-header__ruler{position:absolute;left:0;right:0;bottom:0;height:7px;pointer-events:none;
  background:repeating-linear-gradient(90deg,rgba(155,166,184,.3) 0 1px,transparent 1px 16px);opacity:.75;}
.scroll-progress{position:absolute;left:0;bottom:0;width:100%;height:3px;z-index:2;transform-origin:0 50%;transform:scaleX(0);
  background:linear-gradient(90deg,var(--cyan),var(--violet) 58%,var(--orange));}

.site-header__inner{
  display:grid;
  grid-template-columns:auto minmax(0,1fr) auto;
  grid-template-areas:"brand ticker nav";
  align-items:center;
  column-gap:clamp(12px,1.8vw,32px);
  padding-block:clamp(10px,1.2vw,16px);
}

.brand{grid-area:brand;display:flex;align-items:center;gap:12px;min-width:0;}
.brand__mark{display:grid;place-items:center;flex:none;width:40px;height:40px;border-radius:var(--r-pill);
  background:var(--cyan);color:#04120F;font-family:var(--font-mono);font-weight:700;font-size:14px;letter-spacing:.02em;
  box-shadow:0 0 0 1px rgba(22,240,208,.5),0 0 22px rgba(22,240,208,.35);}
.brand__text{display:flex;flex-direction:column;min-width:0;}
.brand__name{font-family:var(--font-display);font-size:19px;line-height:1.12;letter-spacing:.02em;color:var(--cream);}
.brand__line{font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--mist);}

.ticker{grid-area:ticker;position:relative;min-width:0;overflow:hidden;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 22px,#000 calc(100% - 22px),transparent);
  mask-image:linear-gradient(90deg,transparent,#000 22px,#000 calc(100% - 22px),transparent);}
.ticker__track{display:flex;gap:8px;align-items:center;overflow-x:auto;padding:4px 0;
  scrollbar-width:none;-ms-overflow-style:none;touch-action:pan-x;cursor:grab;}
.ticker__track::-webkit-scrollbar{display:none;}
.ticker__track[data-dragging="true"]{cursor:grabbing;}
.chip{display:inline-flex;align-items:center;gap:7px;flex:0 0 auto;padding:6px 14px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:rgba(14,21,38,.85);color:var(--mist);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;white-space:nowrap;
  -webkit-user-select:none;user-select:none;}
.chip::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--mist);flex:none;}
.chip:nth-child(3n+1)::before{background:var(--cyan);box-shadow:0 0 8px var(--cyan);}
.chip:nth-child(3n+2)::before{background:var(--orange);box-shadow:0 0 8px var(--orange);}
.chip:nth-child(3n+3)::before{background:var(--violet);box-shadow:0 0 8px var(--violet);}

.nav-toggle{grid-area:toggle;display:none;align-items:center;gap:9px;padding:9px 16px 9px 14px;
  border-radius:var(--r-pill);border:1px solid var(--line);background:rgba(14,21,38,.9);color:var(--cream);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;
  transition:color .2s var(--ease),border-color .2s var(--ease);}
.nav-toggle__bars{position:relative;width:16px;height:10px;flex:none;}
.nav-toggle__bars::before,.nav-toggle__bars::after{content:"";position:absolute;left:0;width:16px;height:2px;
  border-radius:2px;background:currentColor;transition:transform .24s var(--ease);}
.nav-toggle__bars::before{top:0;}
.nav-toggle__bars::after{bottom:0;}
.site-header[data-open] .nav-toggle{color:var(--cyan);border-color:var(--line-cyan);}
.site-header[data-open] .nav-toggle__bars::before{transform:translateY(4px) rotate(45deg);}
.site-header[data-open] .nav-toggle__bars::after{transform:translateY(-4px) rotate(-45deg);}

.site-nav{grid-area:nav;}
.site-nav__list{display:flex;align-items:center;gap:clamp(2px,.5vw,6px);}
.site-nav__link{display:inline-block;padding:9px 13px;border-radius:var(--r-pill);border:1px solid transparent;
  color:var(--mist);font-size:15px;line-height:1.2;letter-spacing:.02em;white-space:nowrap;
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);}
.site-nav__link:hover{color:var(--cream);border-color:var(--line);background:rgba(155,166,184,.08);}
.site-nav__link[aria-current="page"]{color:var(--cyan);border-color:var(--line-cyan);background:rgba(22,240,208,.08);}

/* ---------- 9. 页脚 ---------- */
.site-footer{position:relative;margin-top:clamp(56px,9vw,132px);border-top:1px solid var(--line);
  background:linear-gradient(180deg,#0A1120,#070B14);}
.site-footer__ruler{height:8px;opacity:.75;
  background:repeating-linear-gradient(90deg,rgba(155,166,184,.3) 0 1px,transparent 1px 18px);}

.site-footer__grid{display:grid;grid-template-columns:minmax(0,1.5fr) repeat(3,minmax(0,1fr));
  gap:clamp(24px,3.2vw,56px);padding-block:clamp(40px,5vw,80px) clamp(24px,3vw,40px);}

.site-footer__brand{display:flex;flex-direction:column;gap:12px;}
.footer-brand{font-family:var(--font-display);font-size:clamp(22px,2.4vw,28px);letter-spacing:-.01em;color:var(--cream);line-height:1.1;}
.footer-signoff{font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--cyan);}
.footer-note{font-size:15px;line-height:1.7;color:var(--mist);max-width:38ch;}
.site-footer__cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:4px;}
.site-footer__cta .btn{padding:12px 20px;font-size:15px;}

.footer-col__title{display:flex;align-items:center;gap:9px;margin-bottom:14px;font-family:var(--font-mono);
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--cream);}
.footer-col__title::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan);
  box-shadow:0 0 10px var(--cyan);flex:none;}
.footer-col__list{display:flex;flex-direction:column;gap:2px;}
.footer-link{display:inline-flex;padding:6px 0;color:var(--mist);font-size:15px;
  transition:color .2s var(--ease),transform .2s var(--ease);}
.footer-link:hover{color:var(--cyan);transform:translateX(3px);}

.site-footer__contact{display:flex;flex-direction:column;gap:16px;padding-block:clamp(22px,3vw,34px);
  border-top:1px dashed var(--line);}
.contact-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(16px,2.4vw,32px);}
.contact-list__item{display:flex;flex-wrap:wrap;align-items:baseline;gap:8px 12px;}
.contact-list__label{display:block;width:100%;font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--mist);}
.contact-list__value{font-family:var(--font-mono);font-size:14px;letter-spacing:.03em;color:var(--cream);
  line-height:1.6;overflow-wrap:anywhere;}
.copy-btn{padding:3px 10px;border-radius:var(--r-pill);border:1px solid var(--line);color:var(--mist);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;
  transition:color .2s var(--ease),border-color .2s var(--ease);}
.copy-btn:hover{color:var(--cyan);border-color:var(--line-cyan);}
.contact-note{font-size:14px;line-height:1.7;color:var(--mist);max-width:76ch;}

.site-footer__base{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px 24px;
  padding-block:20px 28px;border-top:1px solid var(--line);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;color:var(--mist);}
.footer-legal{color:var(--mist);}
.footer-copy{color:var(--mist);}
.to-top{position:fixed;right:clamp(14px,2.4vw,28px);bottom:clamp(14px,2.4vw,28px);z-index:90;
  padding:11px 18px;border-radius:var(--r-pill);border:1px solid var(--line-cyan);
  background:rgba(7,11,20,.92);color:var(--cyan);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s var(--ease);}
.to-top[data-visible]{opacity:1;visibility:visible;transform:none;}

/* ---------- 10. 入场 ---------- */
.has-js [data-reveal]{opacity:0;transform:translateY(12px);
  transition:opacity .5s var(--ease),transform .5s var(--ease);}
.has-js [data-reveal].is-visible{opacity:1;transform:none;}

/* ---------- 11. 响应式 ---------- */
@media (max-width:1120px){
  .site-header__inner{
    grid-template-columns:minmax(0,1fr) auto;
    grid-template-areas:
      "brand toggle"
      "ticker ticker"
      "nav nav";
    row-gap:10px;
    padding-block:12px 10px;
  }
  .nav-toggle{display:inline-flex;}
  .site-nav{display:none;padding-top:12px;border-top:1px solid var(--line);max-height:60vh;overflow-y:auto;}
  .site-header[data-open] .site-nav{display:block;}
  .site-nav__list{flex-direction:column;align-items:stretch;gap:2px;}
  .site-nav__link{display:block;padding:12px 14px;border-radius:14px;font-size:16px;}
}

@media (max-width:900px){
  .grid--3,.grid--4{grid-template-columns:repeat(2,minmax(0,1fr));}
  .grid-12{grid-template-columns:repeat(6,minmax(0,1fr));}
  .site-footer__grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .site-footer__brand{grid-column:1 / -1;}
  .contact-list{grid-template-columns:repeat(2,minmax(0,1fr));}
}

@media (max-width:620px){
  body{font-size:16px;}
  .grid--2,.grid--3,.grid--4,.grid-12{grid-template-columns:minmax(0,1fr);}
  .site-footer__grid{grid-template-columns:minmax(0,1fr);}
  .contact-list{grid-template-columns:minmax(0,1fr);}
  .brand__line{display:none;}
  .site-footer__cta .btn{flex:1 1 auto;}
}

/* ---------- 12. 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;}
  .has-js [data-reveal]{opacity:1;transform:none;}
  .scroll-progress{transition:none;}
}

/* ---------- 13. 打印 ---------- */
@media print{
  .site-header,.site-footer__cta,.to-top,.scroll-progress,.ticker{display:none !important;}
  body{background:#fff;color:#111;background-image:none;}
}