/* ===========================================================
   浩瀚体育投注 · 全站共享样式  /assets/site.css
   高原夜空深蓝底色 + 印刷叠层 + 鎏金数据高亮
   =========================================================== */

/* ---------- 1. 设计令牌 ---------- */
:root{
  --night:#0B1B2B;
  --indigo:#1B1638;
  --snow:#F4F7FB;
  --silver:#B9C4D0;
  --saffron:#C62828;
  --gold:#D4A017;
  --ice:#4FC3F7;
  --jade:#1F7A6B;
  --ink:#070B12;

  --line:rgba(185,196,208,.20);
  --line-strong:rgba(185,196,208,.40);
  --line-gold:rgba(212,160,23,.44);
  --muted:rgba(185,196,208,.76);

  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC","Helvetica Neue",Arial,sans-serif;
  --font-mono:ui-monospace,"SFMono-Regular","JetBrains Mono",Menlo,Consolas,"Courier New",monospace;

  --shell-max:1180px;
  --gutter:clamp(16px,4vw,40px);
  --gap:clamp(16px,2.4vw,28px);

  --radius:3px;
  --speed:180ms;
  --ease:cubic-bezier(.2,.7,.3,1);
}

/* ---------- 2. 重置与基础排版 ---------- */
*,*::before,*::after{box-sizing:border-box;}

html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
}

body{
  margin:0;
  min-height:100vh;
  background-color:var(--night);
  background-image:
    radial-gradient(1200px 620px at 10% -12%,rgba(27,22,56,.92),transparent 70%),
    radial-gradient(900px 520px at 92% 4%,rgba(31,122,107,.18),transparent 72%);
  color:var(--snow);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.72;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

img,svg,video{display:block;max-width:100%;height:auto;}

a{color:inherit;text-decoration:none;}

button,input,select,textarea{font:inherit;color:inherit;}

h1,h2,h3,h4,h5,h6,p,ul,ol,li,figure,blockquote,dl,dd{margin:0;padding:0;}
ul,ol{list-style:none;}

h1{font-size:clamp(2rem,5vw,3.4rem);line-height:1.12;letter-spacing:-.022em;font-weight:800;}
h2{font-size:clamp(1.4rem,2.8vw,2.05rem);line-height:1.2;letter-spacing:-.016em;font-weight:760;}
h3{font-size:clamp(1.08rem,1.7vw,1.32rem);line-height:1.32;font-weight:720;}
h4{font-size:1rem;line-height:1.4;font-weight:700;}

p{max-width:72ch;}
p+p{margin-top:1em;}

code,kbd,samp{
  font-family:var(--font-mono);
  font-size:.88em;
  padding:.12em .4em;
  border:1px solid var(--line);
  border-radius:2px;
  background:rgba(27,22,56,.5);
}

::selection{background:var(--gold);color:var(--ink);}

:focus-visible{
  outline:2px solid var(--ice);
  outline-offset:3px;
  border-radius:2px;
}

/* ---------- 3. 布局容器 ---------- */
.shell{
  width:min(var(--shell-max),calc(100% - var(--gutter) * 2));
  margin-inline:auto;
}

.page-main{padding-block:clamp(28px,5vw,64px);}

#main-content{display:block;scroll-margin-top:28px;}

/* ---------- 4. 跳转链接与滚动进度 ---------- */
.skip-link{
  position:fixed;
  top:8px;
  left:8px;
  z-index:200;
  padding:11px 20px;
  background:var(--gold);
  color:var(--ink);
  font-size:.88rem;
  font-weight:800;
  letter-spacing:.04em;
  border-radius:var(--radius);
  transform:translateY(-200%);
  transition:transform var(--speed) var(--ease);
}
.skip-link:focus{transform:translateY(0);}

.scroll-progress{
  position:fixed;
  top:0;left:0;right:0;
  height:3px;
  z-index:120;
  pointer-events:none;
}
.scroll-progress span{
  display:block;
  width:0;
  height:100%;
  background:linear-gradient(90deg,var(--ice),var(--gold) 55%,var(--saffron));
  transition:width 90ms linear;
}

/* ---------- 5. 站点头部：报头 + 栏目带 ---------- */
.site-header{
  position:relative;
  z-index:60;
  background:var(--night);
  color:var(--snow);
  border-bottom:1px solid var(--line);
}

/* 5.1 顶部状态条 */
.header-rail{
  background:var(--ink);
  border-bottom:1px solid var(--line);
  font-size:.74rem;
  letter-spacing:.12em;
  color:var(--muted);
}
.rail-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  min-height:40px;
  padding-block:7px;
}
.rail-mark{
  font-family:var(--font-mono);
  font-size:.68rem;
  letter-spacing:.2em;
  color:var(--muted);
  white-space:nowrap;
}
.rail-live{
  display:inline-flex;
  align-items:center;
  gap:9px;
  color:var(--snow);
  font-weight:600;
  white-space:nowrap;
}
.pulse{
  width:7px;height:7px;
  border-radius:50%;
  background:var(--saffron);
  box-shadow:0 0 0 0 rgba(198,40,40,.6);
  animation:pulse 2.6s infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(198,40,40,.55);}
  70%{box-shadow:0 0 0 10px rgba(198,40,40,0);}
  100%{box-shadow:0 0 0 0 rgba(198,40,40,0);}
}
.rail-note{
  font-family:var(--font-mono);
  font-size:.66rem;
  letter-spacing:.18em;
  color:rgba(185,196,208,.62);
  white-space:nowrap;
}

/* 5.2 刊头 */
.masthead{
  position:relative;
  border-bottom:1px solid var(--line);
  padding-block:clamp(20px,3.4vw,36px);
  text-align:center;
}
.masthead::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:-1px;
  width:min(180px,42%);
  height:2px;
  background:var(--gold);
  transform:translateX(-50%);
}
.masthead-inner{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:7px;
}
.masthead-kicker{
  font-family:var(--font-mono);
  font-size:.68rem;
  letter-spacing:.44em;
  text-indent:.44em;
  color:var(--gold);
  max-width:none;
}
.masthead-brand{
  position:relative;
  display:inline-block;
  font-size:clamp(1.85rem,6vw,3.25rem);
  font-weight:900;
  line-height:1.05;
  letter-spacing:.07em;
  text-indent:.07em;
  color:var(--snow);
  transition:color var(--speed) var(--ease);
}
.masthead-brand::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:-7px;
  width:0;
  height:3px;
  background:linear-gradient(90deg,var(--saffron),var(--gold));
  transform:translateX(-50%);
  transition:width 280ms var(--ease);
}
.masthead-brand:hover,
.masthead-brand:focus-visible{color:#fff;}
.masthead-brand:hover::after,
.masthead-brand:focus-visible::after{width:100%;}
.masthead-tagline{
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.32em;
  text-indent:.32em;
  color:var(--muted);
  max-width:none;
}

/* 5.3 栏目带 */
.nav-band{
  position:relative;
  z-index:55;
  background:linear-gradient(180deg,rgba(27,22,56,.62),rgba(11,27,43,.24));
}
.nav-inner{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:center;
  gap:18px;
  min-height:58px;
}

.nav-list{
  display:flex;
  align-items:center;
  justify-content:center;
  flex-wrap:wrap;
  gap:clamp(10px,2.2vw,30px);
}
.nav-list a{
  position:relative;
  display:inline-block;
  padding:10px 2px;
  font-size:.94rem;
  font-weight:650;
  letter-spacing:.03em;
  color:var(--muted);
  transition:color var(--speed) var(--ease);
}
.nav-list a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:3px;
  height:2px;
  background:var(--gold);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform 220ms var(--ease);
}
.nav-list a:hover,
.nav-list a:focus-visible{color:var(--snow);}
.nav-list a:hover::after,
.nav-list a:focus-visible::after{transform:scaleX(1);}
.nav-list a[aria-current="page"]{color:var(--snow);}
.nav-list a[aria-current="page"]::after{
  transform:scaleX(1);
  background:var(--saffron);
}

.nav-cta{
  position:absolute;
  right:0;
  top:50%;
  transform:translateY(-50%);
  display:inline-flex;
  align-items:center;
  padding:9px 17px;
  font-size:.8rem;
  font-weight:800;
  letter-spacing:.08em;
  color:var(--ink);
  background:var(--gold);
  border:1px solid var(--gold);
  border-radius:var(--radius);
  transition:background var(--speed) var(--ease),
             color var(--speed) var(--ease),
             border-color var(--speed) var(--ease),
             transform var(--speed) var(--ease);
}
.nav-cta:hover,
.nav-cta:focus-visible{
  background:var(--snow);
  border-color:var(--snow);
  color:var(--night);
  transform:translateY(-50%) translateX(-3px);
}

/* 5.4 移动端栏目按钮 */
.nav-toggle{
  display:none;
  align-items:center;
  gap:10px;
  padding:9px 14px;
  background:transparent;
  border:1px solid var(--line-strong);
  border-radius:var(--radius);
  color:var(--snow);
  font-size:.82rem;
  font-weight:750;
  letter-spacing:.1em;
  cursor:pointer;
  transition:border-color var(--speed) var(--ease),background var(--speed) var(--ease);
}
.nav-toggle:hover{border-color:var(--gold);background:rgba(212,160,23,.08);}
.nav-toggle-bars{
  position:relative;
  display:block;
  width:20px;
  height:12px;
  flex:none;
}
.nav-toggle-bars::before,
.nav-toggle-bars::after{
  content:"";
  position:absolute;
  left:0;right:0;
  height:2px;
  background:currentColor;
  transition:transform 220ms var(--ease),top 220ms var(--ease),bottom 220ms var(--ease);
}
.nav-toggle-bars::before{top:0;}
.nav-toggle-bars::after{bottom:0;}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before{top:5px;transform:rotate(45deg);}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::after{bottom:5px;transform:rotate(-45deg);}

/* 5.5 平板与手机 */
@media (max-width:1024px){
  .nav-list{gap:16px;}
  .nav-cta{font-size:.76rem;padding:8px 13px;}
}

@media (max-width:900px){
  .nav-inner{
    justify-content:space-between;
    min-height:56px;
  }
  .nav-toggle{display:inline-flex;}

  .nav-cta{
    position:static;
    transform:none;
    padding:8px 14px;
    font-size:.76rem;
  }
  .nav-cta:hover,
  .nav-cta:focus-visible{transform:none;}

  .site-nav{
    position:absolute;
    left:0;right:0;
    top:100%;
    z-index:70;
    max-height:0;
    overflow:hidden;
    visibility:hidden;
    background:var(--indigo);
    border-top:1px solid var(--line-gold);
    border-bottom:1px solid var(--line-strong);
    box-shadow:0 22px 40px -26px rgba(7,11,18,.95);
    transition:max-height 320ms var(--ease),visibility 320ms linear;
  }
  .site-nav[data-open="true"]{
    max-height:min(74vh,560px);
    overflow-y:auto;
    visibility:visible;
  }

  .nav-list{
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:8px 0;
    flex-wrap:nowrap;
  }
  .nav-list li{border-bottom:1px solid var(--line);}
  .nav-list li:last-child{border-bottom:0;}
  .nav-list a{
    display:block;
    padding:15px 22px;
    font-size:1rem;
  }
  .nav-list a::after{
    left:0;right:auto;top:0;bottom:0;
    width:3px;height:auto;
    transform:scaleY(0);
    transform-origin:top center;
  }
  .nav-list a:hover::after,
  .nav-list a:focus-visible::after,
  .nav-list a[aria-current="page"]::after{transform:scaleY(1);}
  .masthead-tagline{letter-spacing:.24em;text-indent:.24em;}
}

@media (max-width:700px){
  .rail-mark{display:none;}
  .rail-inner{justify-content:center;}
}
@media (max-width:520px){
  .rail-note{display:none;}
  .masthead-kicker{letter-spacing:.3em;text-indent:.3em;}
}

/* ---------- 6. 通用组件 ---------- */
/* 6.1 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 22px;
  border:1px solid transparent;
  border-radius:var(--radius);
  font-size:.9rem;
  font-weight:750;
  letter-spacing:.05em;
  cursor:pointer;
  transition:background var(--speed) var(--ease),
             color var(--speed) var(--ease),
             border-color var(--speed) var(--ease),
             transform var(--speed) var(--ease);
}
.btn--primary{background:var(--gold);border-color:var(--gold);color:var(--ink);}
.btn--primary:hover,.btn--primary:focus-visible{background:var(--snow);border-color:var(--snow);color:var(--night);}
.btn--ghost{background:transparent;border-color:var(--line-strong);color:var(--snow);}
.btn--ghost:hover,.btn--ghost:focus-visible{border-color:var(--gold);color:var(--gold);}
.btn--saffron{background:var(--saffron);border-color:var(--saffron);color:#fff;}
.btn--saffron:hover,.btn--saffron:focus-visible{background:#E23A3A;border-color:#E23A3A;color:#fff;}

/* 6.2 面包屑 */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.12em;
  color:var(--muted);
  padding-block:14px;
}
.breadcrumb li{display:inline-flex;align-items:center;min-width:0;}
.breadcrumb li+li::before{
  content:"/";
  margin:0 10px;
  color:var(--gold);
}
.breadcrumb a{color:var(--muted);transition:color var(--speed) var(--ease);}
.breadcrumb a:hover,.breadcrumb a:focus-visible{color:var(--gold);}
.breadcrumb [aria-current="page"]{color:var(--snow);}

/* 6.3 栅格 */
.grid{display:grid;gap:var(--gap);}
.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));}
@media (max-width:1024px){
  .grid--3,.grid--4{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:640px){
  .grid--2,.grid--3,.grid--4{grid-template-columns:minmax(0,1fr);}
}

/* 6.4 纸张卡片 */
.paper{
  position:relative;
  padding:clamp(18px,2.4vw,26px);
  background:var(--snow);
  color:var(--night);
  border:1px solid rgba(7,11,18,.14);
  border-radius:var(--radius);
  box-shadow:0 1px 0 rgba(7,11,18,.20),0 14px 30px -22px rgba(7,11,18,.75);
}
.paper p{color:rgba(11,27,43,.82);}
.paper--dark{
  background:var(--indigo);
  color:var(--snow);
  border-color:var(--line);
  box-shadow:none;
}
.paper--dark p{color:var(--muted);}

/* 6.5 印刷标签 */
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 9px;
  font-family:var(--font-mono);
  font-size:.66rem;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--muted);
  border:1px solid var(--line-strong);
  border-radius:2px;
  white-space:nowrap;
}
.tag--saffron{color:#FFDCDC;border-color:rgba(198,40,40,.72);background:rgba(198,40,40,.20);}
.tag--gold{color:#FFEAB4;border-color:var(--line-gold);background:rgba(212,160,23,.16);}
.tag--ice{color:#D8F3FF;border-color:rgba(79,195,247,.52);background:rgba(79,195,247,.14);}

/* 6.6 等宽数据 */
.data-num{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-feature-settings:"tnum" 1;
  letter-spacing:-.01em;
}

/* 6.7 图片容器基座 */
.img-frame{
  position:relative;
  display:block;
  overflow:hidden;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:linear-gradient(135deg,var(--indigo) 0%,var(--night) 58%,var(--ink) 100%);
}
.img-frame::after{
  content:"";
  position:absolute;
  inset:0;
  z-index:2;
  pointer-events:none;
  background:
    repeating-linear-gradient(90deg,rgba(185,196,208,.09) 0 1px,transparent 1px 68px),
    repeating-linear-gradient(0deg,rgba(185,196,208,.09) 0 1px,transparent 1px 68px);
}
.img-frame img{
  position:relative;
  z-index:1;
  width:100%;
  height:100%;
  object-fit:cover;
}
.img-frame--16x9{aspect-ratio:16/9;}
.img-frame--4x3{aspect-ratio:4/3;}
.img-frame--3x4{aspect-ratio:3/4;}
.img-frame--1x1{aspect-ratio:1/1;}
.img-frame--wide{aspect-ratio:21/9;}

/* 6.8 滚动显现协议 */
[data-reveal]{opacity:1;}
html.js-ready [data-reveal]{
  opacity:0;
  transform:translateY(16px);
  transition:opacity 520ms var(--ease),transform 520ms var(--ease);
}
html.js-ready [data-reveal][data-revealed="true"]{
  opacity:1;
  transform:none;
}

/* ---------- 7. 站点页脚：纸张叠层 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(48px,8vw,100px);
  background:var(--night);
  color:var(--muted);
  border-top:1px solid var(--line-strong);
  overflow:hidden;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:4px;
  background:linear-gradient(90deg,
    var(--saffron) 0 22%,
    var(--gold) 22% 38%,
    var(--jade) 38% 52%,
    var(--indigo) 52% 100%);
}

.footer-stack{
  position:absolute;
  inset:0;
  overflow:hidden;
  pointer-events:none;
}
.stack-sheet{
  position:absolute;
  left:50%;
  height:100%;
  border:1px solid rgba(185,196,208,.10);
  border-radius:4px 4px 0 0;
  background:rgba(27,22,56,.40);
  transform:translateX(-50%);
}
.stack-sheet--back{
  top:16px;
  width:min(1120px,94%);
}
.stack-sheet--mid{
  top:30px;
  width:min(1052px,88%);
  border-color:rgba(212,160,23,.16);
  background:rgba(7,11,18,.42);
}

.footer-inner{
  position:relative;
  z-index:1;
  padding-top:clamp(42px,6vw,76px);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.5fr;
  gap:clamp(24px,3vw,46px);
  padding-bottom:clamp(28px,4vw,46px);
  border-bottom:1px solid var(--line);
}

.footer-kicker{
  font-family:var(--font-mono);
  font-size:.68rem;
  letter-spacing:.36em;
  color:var(--gold);
  max-width:none;
}
.footer-title{
  margin-top:10px;
  font-size:clamp(1.35rem,3vw,1.95rem);
  font-weight:900;
  line-height:1.12;
  letter-spacing:.07em;
  color:var(--snow);
}
.footer-blurb{
  margin-top:12px;
  max-width:34ch;
  font-size:.9rem;
  line-height:1.85;
  color:var(--muted);
}

.footer-heading{
  font-family:var(--font-mono);
  font-size:.7rem;
  font-weight:600;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--ice);
  padding-bottom:9px;
  margin-bottom:16px;
  border-bottom:1px dashed var(--line);
}
.footer-list{
  display:flex;
  flex-direction:column;
  gap:11px;
  font-size:.9rem;
}
.footer-list a{
  display:inline-block;
  color:var(--muted);
  transition:color var(--speed) var(--ease),transform var(--speed) var(--ease);
}
.footer-list a:hover,
.footer-list a:focus-visible{
  color:var(--gold);
  transform:translateX(4px);
}
.footer-list--meta li{
  display:grid;
  grid-template-columns:auto minmax(0,1fr);
  gap:10px;
  align-items:baseline;
  font-size:.86rem;
  color:var(--muted);
}
.footer-list--meta .data-num{color:var(--snow);}
.meta-label{
  font-family:var(--font-mono);
  font-size:.64rem;
  letter-spacing:.16em;
  color:var(--ice);
  white-space:nowrap;
}
.meta-copy{
  margin-top:14px;
  padding:6px 12px;
  background:transparent;
  border:1px solid var(--line-strong);
  border-radius:var(--radius);
  color:var(--muted);
  font-size:.7rem;
  letter-spacing:.14em;
  cursor:pointer;
  transition:border-color var(--speed) var(--ease),color var(--speed) var(--ease);
}
.meta-copy:hover,.meta-copy:focus-visible{border-color:var(--gold);color:var(--gold);}
.meta-copy[data-copied="true"]{border-color:var(--jade);color:#8FE0CF;}

.footer-base{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:8px 28px;
  padding:22px 0 30px;
  font-size:.78rem;
  color:rgba(185,196,208,.72);
}
.footer-copy,.footer-note{max-width:none;}
.footer-note{
  font-family:var(--font-mono);
  font-size:.7rem;
  letter-spacing:.1em;
}

/* ---------- 8. 返回顶部 ---------- */
.to-top{
  position:fixed;
  right:clamp(14px,3vw,30px);
  bottom:clamp(14px,3vw,30px);
  z-index:110;
  padding:10px 15px;
  background:rgba(11,27,43,.94);
  border:1px solid var(--line-strong);
  border-radius:var(--radius);
  color:var(--muted);
  font-size:.74rem;
  letter-spacing:.16em;
  cursor:pointer;
  opacity:0;
  visibility:hidden;
  transform:translateY(12px);
  transition:opacity var(--speed) var(--ease),
             transform var(--speed) var(--ease),
             visibility var(--speed) linear,
             border-color var(--speed) var(--ease),
             color var(--speed) var(--ease);
}
.to-top[data-visible="true"]{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover,.to-top:focus-visible{border-color:var(--gold);color:var(--gold);}

/* ---------- 9. 断点微调 ---------- */
@media (max-width:1024px){
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:560px){
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px;}
  .footer-base{flex-direction:column;align-items:flex-start;}
}

/* ---------- 10. 减少动态效果 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .pulse{box-shadow:0 0 0 3px rgba(198,40,40,.35);}
  html.js-ready [data-reveal]{
    opacity:1;
    transform:none;
  }
  .scroll-progress span{transition:none;}
}