/* =========================================================
   华体会赛场 · 共享样式 /assets/site.css
   设计轴：框架式导航 · 错位分屏 · 珠宝色分区 · 14° 切角
   ========================================================= */

/* ---------- 1. 变量 ---------- */
:root{
  --ink:#0A1A2F;
  --ink-deep:#061020;
  --cyan:#29E7D0;
  --cyan-soft:rgba(41,231,208,.14);
  --teal:#14756B;
  --red:#E8323C;
  --red-lift:#FF4650;
  --amber:#F0B429;
  --panel:#10263F;
  --violet:#2B1B4A;
  --wine:#4A1230;
  --text:#E6EEF5;
  --muted:#8FA6BC;
  --line:rgba(41,231,208,.16);
  --line-soft:rgba(143,166,188,.18);

  --rail-w:248px;
  --top-h:56px;
  --gutter:clamp(18px,4vw,56px);
  --shell-max:1260px;
  --cut:14px;

  --font-display:"Source Han Sans SC","Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-body:var(--font-display);
  --font-data:ui-monospace,"JetBrains Mono","SFMono-Regular",Menlo,Consolas,"Courier New",monospace;
}

/* ---------- 2. Reset ---------- */
*,*::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,fieldset{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;}
button{background:none;border:0;cursor:pointer;}
a{color:inherit;text-decoration:none;}
table{border-collapse:collapse;width:100%;}
h1,h2,h3,h4{line-height:1.15;font-weight:800;}

/* ---------- 3. 中文排版基础 ---------- */
body{
  min-height:100vh;
  padding-top:var(--top-h);
  background:var(--ink);
  color:var(--text);
  font-family:var(--font-body);
  font-size:16px;
  font-weight:450;
  line-height:1.75;
  letter-spacing:.005em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
.mono{
  font-family:var(--font-data);
  font-variant-numeric:tabular-nums;
  letter-spacing:.02em;
}
.num{
  font-family:var(--font-data);
  font-variant-numeric:tabular-nums;
  font-size:clamp(26px,4vw,46px);
  font-weight:700;
  line-height:1;
  color:var(--amber);
}
.eyebrow{
  display:block;
  font-family:var(--font-data);
  font-size:11.5px;
  letter-spacing:.26em;
  color:var(--cyan);
}
.section-title{
  font-size:clamp(28px,4.4vw,52px);
  font-weight:800;
  line-height:1.05;
  letter-spacing:-.02em;
  font-stretch:condensed;
}
.prose{max-width:38em;}
.prose p{font-size:16.5px;line-height:1.8;color:var(--text);}
.prose p + p{margin-top:1.05em;}
.prose strong{font-weight:700;color:var(--text);}
.prose a{color:var(--cyan);box-shadow:inset 0 -1px 0 rgba(41,231,208,.55);}
.prose a:hover{box-shadow:inset 0 -2px 0 var(--cyan);}

/* ---------- 4. 焦点 & 动效偏好 ---------- */
:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:3px;
}
@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;
  }
}

/* ---------- 5. 跳转链接 ---------- */
.skip-link{
  position:fixed;
  left:12px;
  top:-90px;
  z-index:120;
  padding:10px 18px;
  background:var(--cyan);
  color:var(--ink-deep);
  font-size:13px;
  font-weight:700;
  letter-spacing:.06em;
  transition:top .18s ease-out;
  clip-path:polygon(0 0,calc(100% - 10px) 0,100% 10px,100% 100%,10px 100%,0 calc(100% - 10px));
}
.skip-link:focus{top:12px;}

/* ---------- 6. 头部外壳 ---------- */
.site-header{position:static;}

/* 6.1 顶部品牌条 */
.topbar{
  position:fixed;
  top:0;left:0;right:0;
  height:var(--top-h);
  z-index:60;
  background:
    linear-gradient(100deg,rgba(6,16,32,.97) 0%,rgba(10,26,47,.95) 52%,rgba(43,27,74,.92) 100%);
  border-bottom:1px solid var(--line);
  backdrop-filter:saturate(140%) blur(10px);
}
.topbar__inner{
  height:100%;
  display:flex;
  align-items:center;
  gap:clamp(10px,2vw,26px);
  padding-inline:var(--gutter);
}
.topbar__brand{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-size:15.5px;
  font-weight:800;
  letter-spacing:-.01em;
  flex:none;
}
.topbar__dot{
  width:8px;height:8px;
  flex:none;
  background:var(--cyan);
  transform:rotate(45deg);
}
.topbar__name{transition:color .18s ease-out;}
.topbar__brand:hover .topbar__name{color:var(--cyan);}
.topbar__domain{
  margin-left:auto;
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-size:12.5px;
  color:var(--muted);
  white-space:nowrap;
}
.topbar__domain-tag{
  padding:2px 8px;
  font-size:11px;
  letter-spacing:.12em;
  color:rgba(41,231,208,.78);
  box-shadow:inset 0 0 0 1px var(--line);
}
.topbar__domain .mono{color:var(--cyan);font-size:12.5px;}
.topbar__cta{
  flex:none;
  padding:7px 15px;
  font-size:13px;
  font-weight:700;
  letter-spacing:.06em;
  color:var(--ink-deep);
  background:var(--cyan);
  clip-path:polygon(0 0,calc(100% - 10px) 0,100% 10px,100% 100%,10px 100%,0 calc(100% - 10px));
  transition:background-color .18s ease-out;
}
.topbar__cta:hover{background:#7CF3E5;}

/* 6.2 移动端唤出按钮 */
.nav-toggle{
  display:inline-flex;
  align-items:center;
  gap:8px;
  flex:none;
  padding:8px 12px;
  color:var(--cyan);
  font-size:12px;
  font-weight:700;
  letter-spacing:.14em;
  box-shadow:inset 0 0 0 1px rgba(41,231,208,.42);
  clip-path:polygon(0 0,calc(100% - 10px) 0,100% 10px,100% 100%,10px 100%,0 calc(100% - 10px));
  transition:background-color .18s ease-out,box-shadow .18s ease-out;
}
.nav-toggle:hover{background:var(--cyan-soft);}
.nav-toggle[aria-expanded="true"]{
  background:rgba(41,231,208,.18);
  box-shadow:inset 0 0 0 1px var(--cyan);
}
.nav-toggle__bars{
  position:relative;
  display:block;
  width:15px;height:9px;
}
.nav-toggle__bars i{
  position:absolute;
  left:0;right:0;
  height:1.5px;
  background:currentColor;
  transition:transform .2s ease-out;
}
.nav-toggle__bars i:first-child{top:0;}
.nav-toggle__bars i:last-child{bottom:0;}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:first-child{transform:translateY(3.75px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:last-child{transform:translateY(-3.75px) rotate(-45deg);}

/* 6.3 框架竖栏 / 抽屉 */
.rail-nav{
  position:fixed;
  top:0;left:0;bottom:0;
  z-index:70;
  width:min(320px,86vw);
  display:flex;
  flex-direction:column;
  overflow-y:auto;
  overscroll-behavior:contain;
  background:linear-gradient(180deg,#08172B 0%,var(--ink-deep) 60%,#040B16 100%);
  border-right:1px solid var(--line);
}
.rail__brand{
  position:relative;
  padding:20px 20px 18px;
  border-bottom:1px solid var(--line);
}
.rail__close{
  position:absolute;
  top:14px;right:12px;
  width:32px;height:32px;
  display:grid;
  place-items:center;
  color:var(--muted);
  font-size:18px;
  line-height:1;
  box-shadow:inset 0 0 0 1px rgba(41,231,208,.28);
  clip-path:polygon(0 0,calc(100% - 9px) 0,100% 9px,100% 100%,9px 100%,0 calc(100% - 9px));
  transition:color .18s ease-out,box-shadow .18s ease-out;
}
.rail__close:hover{color:var(--cyan);box-shadow:inset 0 0 0 1px var(--cyan);}
.rail__logo{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
}
.rail__mark{
  display:inline-flex;
  align-items:flex-end;
  gap:4px;
  height:20px;
  margin-bottom:10px;
}
.rail__mark i{display:block;width:5px;background:var(--cyan);}
.rail__mark i:nth-child(1){height:11px;opacity:.5;}
.rail__mark i:nth-child(2){height:20px;}
.rail__mark i:nth-child(3){height:14px;background:var(--amber);}
.rail__name{
  font-size:19px;
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.2;
  color:var(--text);
}
.rail__sub{
  margin-top:5px;
  font-family:var(--font-data);
  font-size:10px;
  letter-spacing:.3em;
  color:var(--muted);
}
.rail__list{flex:1 1 auto;padding:12px 0;}
.rail__link{
  position:relative;
  display:flex;
  align-items:center;
  gap:12px;
  padding:11px 20px;
  color:var(--muted);
  transition:color .18s ease-out,background-color .18s ease-out;
}
.rail__link::before{
  content:"";
  position:absolute;
  left:0;top:9px;bottom:9px;
  width:3px;
  background:transparent;
  transition:background-color .18s ease-out;
}
.rail__link:hover{color:var(--text);background:rgba(41,231,208,.06);}
.rail__link:hover::before{background:var(--teal);}
.rail__link[aria-current="page"]{
  color:var(--text);
  background:linear-gradient(90deg,rgba(41,231,208,.13),rgba(41,231,208,0));
}
.rail__link[aria-current="page"]::before{background:var(--cyan);}
.rail__idx{
  font-family:var(--font-data);
  font-variant-numeric:tabular-nums;
  font-size:10.5px;
  letter-spacing:.1em;
  color:var(--teal);
  transition:color .18s ease-out;
}
.rail__link:hover .rail__idx,
.rail__link[aria-current="page"] .rail__idx{color:var(--cyan);}
.rail__label{font-size:15.5px;font-weight:600;letter-spacing:.02em;}
.rail__foot{
  display:grid;
  gap:9px;
  padding:18px 20px 26px;
  border-top:1px solid var(--line);
  background:rgba(6,16,32,.5);
}
.rail__eyebrow{
  margin-bottom:2px;
  font-family:var(--font-data);
  font-size:10px;
  letter-spacing:.28em;
  color:var(--muted);
}

/* 6.4 窄屏抽屉态 */
@media (max-width:1023.98px){
  .rail-nav{
    transform:translateX(-104%);
    transition:transform .3s ease-out,box-shadow .3s ease-out;
  }
  .rail-nav[data-open]{
    transform:translateX(0);
    box-shadow:0 0 0 100vmax rgba(6,16,32,.72),18px 0 46px rgba(0,0,0,.5);
  }
}

/* 6.5 宽屏常驻竖栏 */
@media (min-width:1024px){
  body{padding-left:var(--rail-w);}
  .rail-nav{
    width:var(--rail-w);
    transform:none;
    box-shadow:none;
  }
  .rail__close{display:none;}
  .nav-toggle{display:none;}
  .topbar__inner{padding-left:calc(var(--rail-w) + var(--gutter));}
}

@media (max-width:719.98px){
  .topbar__domain{display:none;}
  .topbar__cta{margin-left:auto;}
}

/* ---------- 7. 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:11px 18px;
  font-family:var(--font-body);
  font-size:14px;
  font-weight:700;
  letter-spacing:.05em;
  line-height:1.2;
  border:0;
  cursor:pointer;
  clip-path:polygon(0 0,calc(100% - 13px) 0,100% 13px,100% 100%,13px 100%,0 calc(100% - 13px));
  transition:background-color .18s ease-out,color .18s ease-out,box-shadow .18s ease-out;
}
.btn--red{
  background:var(--red);
  color:#FFF4F4;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.14);
}
.btn--red:hover{background:var(--red-lift);}
.btn--ghost{
  background:rgba(41,231,208,.05);
  color:var(--cyan);
  box-shadow:inset 0 0 0 1px rgba(41,231,208,.34);
}
.btn--ghost:hover{
  background:rgba(41,231,208,.14);
  box-shadow:inset 0 0 0 1px var(--cyan);
}
.btn--block{width:100%;}

/* ---------- 8. 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(52px,8vw,110px);
  background:var(--ink-deep);
  border-top:1px solid var(--line);
  color:var(--muted);
}
.footer-atmos{
  position:relative;
  height:clamp(52px,8vw,96px);
  overflow:hidden;
  border-bottom:1px solid var(--line-soft);
  background:
    repeating-linear-gradient(90deg,rgba(41,231,208,.12) 0 1px,transparent 1px 72px),
    linear-gradient(112deg,var(--violet) 0%,rgba(74,18,48,.85) 38%,rgba(10,26,47,.25) 72%,rgba(10,26,47,0) 100%),
    linear-gradient(180deg,var(--ink) 0%,var(--ink-deep) 100%);
}
.footer-atmos::before{
  content:"";
  position:absolute;
  left:0;right:0;top:50%;
  height:1px;
  background:linear-gradient(90deg,rgba(41,231,208,0) 4%,rgba(41,231,208,.75) 38%,rgba(240,180,41,.55) 62%,rgba(41,231,208,0) 96%);
  transform:rotate(-14deg);
}
.footer-atmos::after{
  content:"";
  position:absolute;
  right:8%;top:-40%;
  width:min(340px,46vw);
  height:180%;
  background:radial-gradient(circle at 50% 50%,rgba(41,231,208,.22),rgba(41,231,208,0) 68%);
}
.footer__inner{
  display:grid;
  grid-template-columns:1fr;
  gap:clamp(26px,4vw,44px);
  max-width:var(--shell-max);
  margin-inline:auto;
  padding:clamp(34px,5vw,58px) var(--gutter) clamp(26px,3.5vw,42px);
}
.footer__col{min-width:0;}
.footer__col--action{
  display:flex;
  flex-direction:column;
  padding-left:16px;
  border-left:2px solid var(--red);
}
.footer__logo{
  font-size:20px;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--text);
}
.footer__domain{
  margin-top:7px;
  font-size:13.5px;
  color:var(--cyan);
}
.footer__line{
  margin-top:14px;
  max-width:24em;
  font-size:14px;
  line-height:1.7;
  color:var(--muted);
}
.footer__badge{
  display:inline-block;
  margin-top:14px;
  padding:4px 10px;
  font-size:11.5px;
  letter-spacing:.1em;
  color:var(--amber);
  box-shadow:inset 0 0 0 1px rgba(240,180,41,.35);
}
.footer__head{
  margin-bottom:14px;
  font-family:var(--font-data);
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.2em;
  color:var(--cyan);
}
.footer__col--action .btn{margin-bottom:9px;}
.footer__note{
  margin-top:6px;
  font-size:12.5px;
  line-height:1.7;
  color:var(--muted);
}
.footer__list a{
  display:inline-block;
  padding:4px 0;
  font-size:14px;
  color:var(--muted);
  transition:color .18s ease-out;
}
.footer__list a:hover{color:var(--cyan);}
.footer__list--meta li{
  display:flex;
  gap:10px;
  padding:5px 0;
  font-size:13.5px;
  line-height:1.6;
}
.footer__key{
  flex:none;
  min-width:4.6em;
  color:rgba(41,231,208,.75);
}
.footer__icp{
  margin-top:12px;
  font-family:var(--font-data);
  font-size:12px;
  color:var(--muted);
}
.footer__base{border-top:1px solid var(--line-soft);}
.footer__base p{
  max-width:var(--shell-max);
  margin-inline:auto;
  padding:16px var(--gutter);
  font-size:12.5px;
  color:var(--muted);
}
@media (min-width:600px){
  .footer__inner{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (min-width:1024px){
  .footer__inner{grid-template-columns:1.35fr 1.15fr 1fr 1.4fr;}
}

/* ---------- 9. 内容骨架 ---------- */
.shell{
  width:100%;
  max-width:var(--shell-max);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.section{padding-block:clamp(38px,6vw,84px);}
.band{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px 16px;
  padding:14px var(--gutter);
  background:linear-gradient(90deg,var(--violet),rgba(74,18,48,.7));
  border-block:1px solid var(--line);
}
.band--wine{background:linear-gradient(90deg,rgba(74,18,48,.92),rgba(43,27,74,.55));}
.grid{display:grid;gap:clamp(14px,2.2vw,24px);}
.grid--2{grid-template-columns:repeat(auto-fit,minmax(260px,1fr));}
.grid--3{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));}

.panel{
  position:relative;
  padding:clamp(18px,2.4vw,28px);
  background:var(--panel);
  box-shadow:inset 0 0 0 1px rgba(41,231,208,.14);
  clip-path:polygon(0 0,calc(100% - 20px) 0,100% 20px,100% 100%,0 100%);
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.panel:hover{
  transform:translateY(-2px);
  box-shadow:inset 0 0 0 1px var(--cyan);
}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 9px;
  font-size:11.5px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--muted);
  box-shadow:inset 0 0 0 1px var(--line);
}
.tag--cyan{color:var(--cyan);box-shadow:inset 0 0 0 1px rgba(41,231,208,.4);}
.tag--amber{color:var(--amber);box-shadow:inset 0 0 0 1px rgba(240,180,41,.4);}

/* ---------- 10. 面包屑 ---------- */
.crumbs{padding-block:16px;}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;}
.crumbs li{
  display:inline-flex;
  align-items:center;
  font-size:13px;
  color:var(--muted);
}
.crumbs li + li::before{
  content:"/";
  margin:0 9px;
  color:var(--teal);
}
.crumbs a{color:var(--muted);transition:color .18s ease-out;}
.crumbs a:hover{color:var(--cyan);}
.crumbs [aria-current="page"]{color:var(--text);}

/* ---------- 11. 图片容器基础规则 ---------- */
.figure{
  position:relative;
  overflow:hidden;
  background:
    repeating-linear-gradient(135deg,rgba(41,231,208,.06) 0 10px,rgba(41,231,208,0) 10px 20px),
    linear-gradient(160deg,var(--panel) 0%,var(--ink-deep) 100%);
  box-shadow:inset 0 0 0 1px rgba(41,231,208,.18);
  clip-path:polygon(0 0,calc(100% - 22px) 0,100% 22px,100% 100%,0 100%);
}
.figure > img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.figure--wide{aspect-ratio:16/9;}
.figure--std{aspect-ratio:4/3;}
.figure--tall{aspect-ratio:3/4;}
.figure--square{aspect-ratio:1/1;}
@media (max-width:640px){
  .figure--wide{aspect-ratio:4/3;}
  .figure--tall{aspect-ratio:4/5;}
}
.figure__caption{
  padding:11px 2px 0;
  font-size:12.5px;
  line-height:1.7;
  color:var(--muted);
}

/* ---------- 12. 滚动服务（JS 注入） ---------- */
.scroll-progress{
  position:fixed;
  top:0;left:0;
  width:0;
  height:3px;
  z-index:110;
  background:linear-gradient(90deg,var(--teal),var(--cyan));
  pointer-events:none;
  transition:width .12s linear;
}
.to-top{
  position:fixed;
  right:clamp(14px,3vw,30px);
  bottom:clamp(14px,3vw,30px);
  z-index:90;
  width:46px;height:46px;
  display:grid;
  place-items:center;
  color:var(--cyan);
  background:rgba(6,16,32,.92);
  box-shadow:inset 0 0 0 1px rgba(41,231,208,.42);
  clip-path:polygon(0 0,calc(100% - 12px) 0,100% 12px,100% 100%,12px 100%,0 calc(100% - 12px));
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  transition:opacity .24s ease-out,transform .24s ease-out,visibility .24s;
}
.to-top[data-visible]{
  opacity:1;
  visibility:visible;
  transform:translateY(0);
}
.to-top:hover{box-shadow:inset 0 0 0 1px var(--cyan);background:rgba(10,26,47,.98);}
.to-top__arrow{
  width:11px;height:11px;
  margin-top:4px;
  border-left:2px solid currentColor;
  border-top:2px solid currentColor;
  transform:rotate(45deg);
}
@media (min-width:1024px){
  .to-top{right:clamp(20px,3vw,44px);}
}