/* ==========================================================================
   皇冠体彩主站 · 共享外壳样式（/assets/site.css）
   坐标与轨迹 / 深夜数据厅 + 加冕仪式感
   ========================================================================== */

/* ---------- 设计令牌 ---------- */
:root{
  --ink:#0B1B2B;
  --ink-deep:#061019;
  --panel:#12293F;
  --gold:#D4AF37;
  --champagne:#F0DFA8;
  --teal:#2FE6C8;
  --alert:#FF4D5E;
  --paper:#F5EFE1;
  --slate:#7C8DA6;
  --cold:#E6EEF7;

  --line:rgba(124,141,166,.26);
  --line-strong:rgba(212,175,55,.38);
  --gold-line:linear-gradient(90deg,#D4AF37,#F0DFA8,#D4AF37);
  --gold-tint:rgba(212,175,55,.08);
  --ink-veil:rgba(230,238,247,.72);

  --font-display:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --font-sans:"HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-mono:"JetBrains Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --shell:1240px;
  --gutter:clamp(18px,4vw,40px);
  --header-h:64px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --radius:2px;
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0}
h1,h2,h3,h4,h5,h6,p,ul,ol,dl,dd,figure,blockquote,fieldset{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
img,svg{display:block;max-width:100%;height:auto}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--teal);outline-offset:2px}

/* ---------- 基础排版 ---------- */
body{
  background-color:var(--ink);
  background-image:
    linear-gradient(to right,rgba(124,141,166,.06) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(124,141,166,.06) 1px,transparent 1px);
  background-size:64px 64px;
  color:var(--cold);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
}
h1,h2{font-family:var(--font-display);font-weight:700;line-height:1.18;letter-spacing:-.01em}
h3,h4,h5,h6{font-family:var(--font-sans);font-weight:700;line-height:1.35;letter-spacing:.01em}

/* ---------- 布局容器 ---------- */
.container{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:var(--gutter)}
.container--wide{max-width:1440px}
.container--narrow{max-width:820px}
.section{padding-block:clamp(52px,7vw,104px)}
.section--tight{padding-block:clamp(32px,4vw,58px)}
.stack>*+*{margin-top:clamp(16px,2vw,26px)}
.rule{height:1px;border:0;margin:0;background:var(--gold-line);opacity:.5}
.gridlines{
  background-image:repeating-linear-gradient(90deg,rgba(212,175,55,.14) 0 1px,transparent 1px 40px);
}
.grid{display:grid;gap:clamp(18px,2.4vw,30px);grid-template-columns:1fr}
.grid--2{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.grid--3{grid-template-columns:repeat(auto-fit,minmax(210px,1fr))}

/* ---------- 标题族 ---------- */
.section__head{display:flex;flex-direction:column;gap:10px;margin-bottom:clamp(24px,3vw,42px);max-width:780px}
.section__kicker{
  display:inline-block;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--gold);
  transform:rotate(-2deg);
  transform-origin:left center;
}
.section__title{font-family:var(--font-display);font-size:clamp(26px,4.2vw,42px);font-weight:700;line-height:1.15;letter-spacing:-.01em;color:var(--cold)}
.section__lead{color:var(--ink-veil);max-width:640px}
.prose{color:rgba(230,238,247,.86)}
.prose p{max-width:680px}
.prose p+p{margin-top:1em}
.prose strong{color:var(--champagne)}
.prose a{color:var(--champagne);border-bottom:1px solid var(--line-strong)}

/* ---------- 无障碍辅助 ---------- */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.skip-link{
  position:absolute;left:14px;top:-80px;z-index:200;
  background:var(--gold);color:#08131F;
  font-family:var(--font-sans);font-weight:700;font-size:13px;letter-spacing:.08em;
  padding:10px 18px;border-radius:var(--radius);
  transition:top .2s var(--ease);
}
.skip-link:focus{top:12px}

/* ---------- 头部：紧凑命令栏 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  --header-h:64px;
  background:linear-gradient(180deg,rgba(6,16,25,.98) 0%,rgba(11,27,43,.94) 100%);
  border-bottom:1px solid var(--line);
  transition:box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:var(--gold-line);opacity:.45;pointer-events:none;
}
.site-header.is-scrolled{--header-h:52px;border-bottom-color:var(--line-strong);box-shadow:0 18px 34px -26px rgba(0,0,0,.95)}
.site-header__inner{
  display:flex;align-items:center;gap:12px;
  height:var(--header-h);
  max-width:var(--shell);margin-inline:auto;padding-inline:var(--gutter);
  transition:height .24s var(--ease);
}

/* 品牌 */
.brand{display:flex;align-items:center;gap:11px;flex:0 1 auto;min-width:0;padding:4px 0}
.brand__mark{
  position:relative;flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  border:1.5px solid var(--gold);
  background:radial-gradient(circle at 50% 50%,rgba(212,175,55,.12),transparent 70%);
}
.brand__mark::before{content:"";position:absolute;inset:4px;border-radius:50%;border:1px solid rgba(240,223,168,.42)}
.brand__mark::after{content:"";position:absolute;left:50%;top:50%;width:6px;height:6px;margin:-3px 0 0 -3px;border-radius:50%;background:var(--teal)}
.brand__text{display:grid;gap:2px;min-width:0}
.brand__name{font-family:var(--font-sans);font-weight:700;font-size:15px;letter-spacing:.06em;color:var(--cold);white-space:nowrap}
.brand__domain{font-family:var(--font-mono);font-size:9.5px;letter-spacing:.2em;color:var(--slate);white-space:nowrap}

/* 汉堡按钮 */
.nav-toggle{
  order:3;
  display:inline-flex;align-items:center;gap:9px;
  border:1px solid var(--line-strong);
  padding:8px 12px;border-radius:var(--radius);
  color:var(--champagne);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.nav-toggle:hover{border-color:var(--gold);color:var(--gold)}
.nav-toggle__bars{display:grid;gap:4px;width:18px}
.nav-toggle__bars span{display:block;height:1.5px;background:var(--gold);transition:transform .22s var(--ease),opacity .16s var(--ease)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1){transform:translateY(5.5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(3){transform:translateY(-5.5px) rotate(-45deg)}
.nav-toggle__label{white-space:nowrap}

/* 导航（移动端抽屉） */
.primary-nav{
  position:absolute;left:0;right:0;top:100%;
  background:var(--ink-deep);
  border-bottom:1px solid rgba(212,175,55,.4);
  box-shadow:0 30px 46px -28px rgba(0,0,0,.9);
  max-height:0;overflow:hidden;opacity:0;visibility:hidden;
  transition:max-height .32s var(--ease),opacity .2s var(--ease),visibility .2s var(--ease);
}
.primary-nav[data-open]{max-height:min(72vh,560px);overflow-y:auto;opacity:1;visibility:visible}
.primary-nav__list{display:flex;flex-direction:column;padding:8px var(--gutter) 20px}
.primary-nav__item{border-bottom:1px solid rgba(124,141,166,.16)}
.primary-nav__item:last-child{border-bottom:0}
.nav-link{
  position:relative;display:flex;align-items:baseline;gap:12px;
  padding:14px 0;
  color:rgba(230,238,247,.84);font-size:15px;
  transition:color .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:6px;width:28px;height:1px;
  background:var(--gold);transform:scaleX(0);transform-origin:left;
  transition:transform .22s var(--ease);
}
.nav-link__index{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;
  color:var(--slate);transform:rotate(-2deg);display:inline-block;
}
.nav-link__label{white-space:nowrap}
.nav-link:hover,.nav-link:focus-visible{color:var(--champagne)}
.nav-link:hover::after,.nav-link:focus-visible::after{transform:scaleX(1)}
.nav-link[aria-current="page"]{color:var(--champagne)}
.nav-link[aria-current="page"]::after{transform:scaleX(1);background:var(--gold-line)}
.nav-link[aria-current="page"] .nav-link__index{color:var(--teal)}

/* 头部右侧 */
.header-aside{order:2;margin-left:auto;display:flex;align-items:center;gap:10px;flex:0 0 auto}
.status-chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:5px 10px;border-radius:var(--radius);
  border:1px solid rgba(212,175,55,.5);
  background:var(--gold-tint);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;color:var(--champagne);
  white-space:nowrap;
}
.status-chip__dot{
  width:6px;height:6px;border-radius:50%;background:var(--teal);
  animation:crown-pulse 2.6s var(--ease) infinite;
}
@keyframes crown-pulse{
  0%{box-shadow:0 0 0 0 rgba(47,230,200,.45)}
  70%{box-shadow:0 0 0 7px rgba(47,230,200,0)}
  100%{box-shadow:0 0 0 0 rgba(47,230,200,0)}
}
.header-cta__short{display:none}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:var(--font-sans);font-weight:700;font-size:13px;letter-spacing:.08em;
  padding:11px 20px;border:1px solid transparent;border-radius:var(--radius);
  white-space:nowrap;cursor:pointer;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.btn--gold{border-color:var(--gold);color:var(--gold);background:var(--gold-tint)}
.btn--gold:hover,.btn--gold:focus-visible{background:var(--gold);color:#08131F}
.btn--solid{background:var(--gold);border-color:var(--gold);color:#08131F}
.btn--solid:hover,.btn--solid:focus-visible{background:var(--champagne);border-color:var(--champagne)}
.btn--ghost{border-color:rgba(230,238,247,.3);color:var(--cold)}
.btn--ghost:hover,.btn--ghost:focus-visible{border-color:var(--champagne);color:var(--champagne)}
.btn--sm{font-size:12px;padding:7px 14px;letter-spacing:.06em}
.btn:active{transform:translateY(1px)}

/* ---------- 页面通用组件 ---------- */
.panel{background:var(--panel);border:1px solid var(--line);padding:clamp(18px,2.4vw,28px);border-radius:var(--radius)}
.card{
  position:relative;
  background:linear-gradient(160deg,rgba(18,41,63,.95),rgba(11,27,43,.95));
  border:1px solid var(--line);border-radius:var(--radius);
  padding:clamp(18px,2.2vw,26px);
  transition:border-color .24s var(--ease),transform .24s var(--ease);
}
.card::before{content:"";position:absolute;top:-1px;left:-1px;width:20px;height:1px;background:var(--gold)}
.card::after{content:"";position:absolute;top:-1px;left:-1px;width:1px;height:20px;background:var(--gold)}
.card:hover{border-color:var(--line-strong);transform:translateY(-3px)}
.card__title{font-family:var(--font-sans);font-size:17px;font-weight:700;color:var(--cold)}
.card__meta{font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;color:var(--slate)}
.data-num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.02em}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;
  padding:3px 9px;border:1px solid var(--line-strong);border-radius:var(--radius);
  color:var(--champagne);background:var(--gold-tint);
}
.tag--hot{border-color:rgba(47,230,200,.5);color:var(--teal);background:rgba(47,230,200,.08)}
.tag--cold{border-color:rgba(255,77,94,.5);color:var(--alert);background:rgba(255,77,94,.08)}
.paper-block{
  background:var(--paper);color:#1A1005;
  padding:clamp(20px,3vw,34px);
  border-left:3px solid var(--gold);border-radius:var(--radius);
}
.paper-block p{max-width:640px}
.paper-block .data-num{color:#0B1B2B}

/* 面包屑 */
.breadcrumb{padding-block:16px;border-bottom:1px solid var(--line)}
.breadcrumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;color:var(--slate)}
.breadcrumb__item{display:inline-flex;align-items:center;gap:8px}
.breadcrumb__item+.breadcrumb__item::before{content:"/";color:rgba(212,175,55,.6)}
.breadcrumb__link{color:var(--slate);transition:color .2s var(--ease)}
.breadcrumb__link:hover{color:var(--champagne)}
.breadcrumb__current{color:var(--cold)}

/* 图片 / 可视化占位容器 */
.figure{
  position:relative;display:block;width:100%;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--radius);
  background:
    linear-gradient(140deg,rgba(18,41,63,.92),rgba(6,16,25,.96)),
    repeating-linear-gradient(90deg,rgba(212,175,55,.16) 0 1px,transparent 1px 40px);
}
.figure::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(to top,rgba(6,16,25,.55),transparent 58%);
}
.figure img{width:100%;height:100%;object-fit:cover}
.figure--21x9{aspect-ratio:21/9}
.figure--16x9{aspect-ratio:16/9}
.figure--4x3{aspect-ratio:4/3}
.figure--1x1{aspect-ratio:1/1}
.figure__caption{margin-top:10px;font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;color:var(--slate)}
.figure__tag{position:absolute;left:12px;top:12px;z-index:2}

/* 分段切换 */
.segment{display:flex;flex-wrap:wrap;gap:6px;border-bottom:1px solid var(--line);padding-bottom:12px}
.segment__tab{
  font-family:var(--font-sans);font-weight:700;font-size:13px;letter-spacing:.08em;
  padding:9px 16px;border:1px solid var(--line);border-radius:var(--radius);
  color:rgba(230,238,247,.66);
  transition:color .18s var(--ease),border-color .18s var(--ease),background-color .18s var(--ease);
}
.segment__tab:hover{color:var(--champagne);border-color:var(--line-strong)}
.segment__tab[aria-selected="true"]{background:var(--gold);border-color:var(--gold);color:#08131F}
.segment__panel{padding-top:clamp(20px,2.6vw,32px)}
.segment__panel[hidden]{display:none}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;background:var(--ink-deep);border-top:1px solid var(--line-strong);color:var(--cold)}
.site-footer::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:var(--gold-line);opacity:.6}
.site-footer__inner{max-width:var(--shell);margin-inline:auto;padding:clamp(38px,5vw,68px) var(--gutter) 22px}
.footer__grid{display:grid;gap:clamp(24px,3vw,34px);grid-template-columns:1fr}
.footer__brand{display:grid;gap:12px;align-content:start;justify-items:start}
.footer__mark{position:relative;width:34px;height:34px;border-radius:50%;border:1px solid var(--gold);background:radial-gradient(circle at 50% 50%,rgba(212,175,55,.14),transparent 72%)}
.footer__mark::after{content:"";position:absolute;inset:10px;border-radius:50%;background:var(--teal)}
.footer__name{font-family:var(--font-display);font-size:19px;font-weight:700;letter-spacing:.02em}
.footer__note{font-size:13px;color:rgba(230,238,247,.6);max-width:280px}
.footer__col{min-width:0}
.footer__col--contact{min-width:0}
.footer__group-title{
  display:flex;align-items:center;gap:8px;
  font-family:var(--font-sans);font-size:12.5px;font-weight:700;letter-spacing:.16em;
  color:var(--champagne);margin-bottom:14px;
}
.footer__group-index{
  display:inline-block;transform:rotate(-2deg);
  font-family:var(--font-mono);font-size:10px;color:var(--gold);
  border:1px solid var(--line-strong);padding:1px 5px;border-radius:var(--radius);
}
.footer__list{display:grid;gap:9px}
.footer__link{
  position:relative;display:inline-block;padding-left:13px;
  font-size:13.5px;color:rgba(230,238,247,.68);
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer__link::before{
  content:"";position:absolute;left:0;top:.72em;width:6px;height:1px;background:var(--slate);
  transition:background-color .2s var(--ease),width .2s var(--ease);
}
.footer__link:hover{color:var(--champagne);transform:translateX(2px)}
.footer__link:hover::before{background:var(--gold);width:9px}
.footer__link[aria-current="page"]{color:var(--teal)}
.footer__link[aria-current="page"]::before{background:var(--teal);width:9px}
.footer__contact{display:grid;gap:12px}
.footer__contact-row{display:grid;gap:2px}
.footer__contact-key{font-family:var(--font-mono);font-size:10px;letter-spacing:.16em;color:var(--slate);text-transform:uppercase}
.footer__contact-val{font-size:13px;color:rgba(230,238,247,.85);word-break:break-word}
.footer__bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:14px 26px;margin-top:clamp(30px,4vw,48px);padding-top:18px;
  border-top:1px solid var(--line);
}
.footer__bottom-links{display:flex;flex-wrap:wrap;gap:8px 20px}
.footer__legal-link{font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;color:var(--slate);transition:color .2s var(--ease)}
.footer__legal-link:hover{color:var(--champagne)}
.footer__legal-link[aria-current="page"]{color:var(--gold)}
.footer__meta{font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;color:var(--slate)}
.footer__version{color:var(--gold)}
.footer__icp{color:var(--slate)}

/* ---------- 滚动显现 ---------- */
.has-js [data-reveal]{opacity:0;transform:translateY(14px);transition:opacity .34s var(--ease),transform .34s var(--ease)}
.has-js [data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 平板 ---------- */
@media (min-width:720px){
  .footer__grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer__brand{grid-column:1 / -1}
  .footer__bottom{flex-wrap:nowrap}
}

/* ---------- 桌面 ---------- */
@media (min-width:1024px){
  .nav-toggle{display:none}
  .header-aside{order:0;margin-left:0}
  .site-header__inner{gap:clamp(14px,2vw,28px)}

  .primary-nav{
    position:static;flex:1 1 auto;
    max-height:none;opacity:1;visibility:visible;overflow:visible;
    background:none;border:0;box-shadow:none;
  }
  .primary-nav__list{flex-direction:row;justify-content:center;align-items:center;gap:2px;padding:0}
  .primary-nav__item{border-bottom:0}
  .nav-link{align-items:center;gap:6px;padding:8px 10px;font-size:13px}
  .nav-link::after{left:10px;right:10px;bottom:3px;width:auto}

  .footer__grid{grid-template-columns:1.5fr repeat(4,.85fr) 1.5fr;gap:clamp(20px,2.4vw,34px)}
  .footer__brand{grid-column:auto}
}

/* ---------- 小屏微调 ---------- */
@media (max-width:640px){
  .brand__domain{display:none}
  .status-chip__text{display:none}
  .status-chip{padding:6px 8px}
  .header-cta__full{display:none}
  .header-cta__short{display:inline}
}
@media (max-width:420px){
  .status-chip{display:none}
  .footer__bottom{justify-content:flex-start}
}

/* ---------- 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;
    scroll-behavior:auto !important;
  }
  .has-js [data-reveal]{opacity:1;transform:none}
  .card:hover{transform:none}
}