/* ============================================================
   皇冠体彩入口 · /assets/site.css
   共享骨架：reset / 设计变量 / 中文排版 / 双层页头 / 档案柜页脚
   ============================================================ */

:root{
  --ink:#0B241F;
  --ink-2:#143A32;
  --ink-3:#081B17;
  --gold:#C9A25E;
  --gold-bright:#E6C98F;
  --brick:#A6533F;
  --wine:#6D2D3B;
  --paper:#F2EBDD;
  --card:#FBF7EF;
  --text:#121917;
  --muted:#5D7068;
  --hairline:rgba(11,36,31,.16);
  --hairline-gold:rgba(201,162,94,.34);
  --font-display:"Noto Serif SC","Songti SC","STSong",serif;
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-mono:"IBM Plex Mono","SFMono-Regular",ui-monospace,monospace;
  --shell:1240px;
  --gutter:clamp(16px,4vw,44px);
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box;}

html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:104px;
}

body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
}

img,svg,video{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
h1,h2,h3,h4,p,figure,blockquote{margin:0;}
#main-content{display:block;}

:focus-visible{
  outline:2px solid var(--gold-bright);
  outline-offset:3px;
}
.site-header :focus-visible,
.site-footer :focus-visible{
  outline-color:var(--gold-bright);
  outline-offset:4px;
}

/* ---------- 基础容器 ---------- */
.shell{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:var(--gutter);
}

.section{padding-block:clamp(40px,6vw,84px);}
.section__head{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding-bottom:14px;
  margin-bottom:clamp(20px,3vw,34px);
  border-bottom:1px solid var(--hairline);
}
.hairline{height:1px;border:0;margin:0;background:var(--hairline);}

.grid-12{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:clamp(16px,2vw,28px);
}
@media (max-width:900px){
  .grid-12{grid-template-columns:repeat(4,minmax(0,1fr));}
}

.prose{max-width:68ch;font-size:1rem;line-height:1.85;}
.eyebrow{
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--brick);
}
.meta-mono{
  font-family:var(--font-mono);
  font-size:.75rem;
  letter-spacing:.12em;
  color:var(--muted);
}
.tag{
  display:inline-block;
  padding:3px 9px;
  border:1px solid var(--hairline-gold);
  background:rgba(109,45,59,.06);
  font-family:var(--font-mono);
  font-size:.7rem;
  letter-spacing:.12em;
  color:var(--wine);
}

.panel{
  background:var(--card);
  border:1px solid var(--hairline);
  padding:clamp(18px,2.4vw,28px);
}
.panel--dark{
  background:var(--ink-2);
  border-color:var(--hairline-gold);
  color:var(--paper);
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:12px 22px;
  border:1px solid transparent;
  font-size:.84rem;
  letter-spacing:.14em;
  line-height:1.2;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.btn--gold{background:var(--gold);color:var(--ink);border-color:var(--gold);}
.btn--gold:hover{background:var(--gold-bright);border-color:var(--gold-bright);transform:translateY(-1px);}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn--ghost:hover{background:var(--ink);color:var(--gold-bright);}

/* ---------- 面包屑 ---------- */
.breadcrumb{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.12em;color:var(--muted);}
.breadcrumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.breadcrumb__item{display:inline-flex;align-items:center;gap:8px;}
.breadcrumb__link{color:var(--muted);transition:color .18s var(--ease);}
.breadcrumb__link:hover{color:var(--brick);}
.breadcrumb__sep{color:var(--gold);}

/* ---------- 图片容器（页面阶段放置占位） ---------- */
.media-frame{
  position:relative;
  overflow:hidden;
  background:var(--ink-2);
  border:1px solid var(--hairline-gold);
  aspect-ratio:4/3;
}
.media-frame::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:
    repeating-linear-gradient(90deg,rgba(201,162,94,.18) 0 1px,transparent 1px 34px),
    repeating-linear-gradient(0deg,rgba(201,162,94,.18) 0 1px,transparent 1px 34px);
}
.media-frame--wide{aspect-ratio:16/9;}
.media-frame--tall{aspect-ratio:3/4;}
.media-frame--square{aspect-ratio:1/1;}
.media-frame__img{width:100%;height:100%;object-fit:cover;display:block;}
.media-frame__caption{
  margin-top:8px;
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.12em;
  color:var(--muted);
}

/* ---------- 无障碍跳转链 ---------- */
.skip-link{
  position:absolute;
  left:12px;
  top:-120px;
  z-index:200;
  padding:10px 18px;
  background:var(--gold);
  color:var(--ink);
  font-size:.82rem;
  letter-spacing:.12em;
  transition:top .2s var(--ease);
}
.skip-link:focus{top:12px;}

/* ============================================================
   双层页头
   ============================================================ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:var(--ink);
  color:var(--paper);
  border-bottom:1px solid var(--hairline-gold);
}

/* 上层：档案柜顶部标签条 */
.header-top{
  background:var(--ink-3);
  background-image:repeating-linear-gradient(90deg,rgba(201,162,94,.10) 0 1px,transparent 1px 96px);
  border-bottom:1px solid rgba(201,162,94,.20);
  max-height:80px;
  overflow:hidden;
  opacity:1;
  transition:max-height .28s var(--ease),opacity .24s var(--ease),border-color .24s var(--ease);
}
.header-top__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:clamp(14px,3vw,32px);
  flex-wrap:wrap;
  min-height:46px;
  padding-block:7px;
}
.header-brand{
  display:flex;
  align-items:center;
  gap:14px;
  flex-wrap:wrap;
}
.header-home{
  flex:0 0 auto;
  padding:2px 10px;
  border:1px solid rgba(201,162,94,.52);
  color:var(--gold-bright);
  font-family:var(--font-mono);
  font-size:.7rem;
  letter-spacing:.16em;
  transition:background .18s var(--ease),color .18s var(--ease);
}
.header-home:hover{background:var(--gold);color:var(--ink);border-color:var(--gold);}
.header-brand__line{
  font-family:var(--font-display);
  font-weight:400;
  font-size:.86rem;
  letter-spacing:.2em;
  color:rgba(242,235,221,.86);
}
.header-brand__dot{color:var(--gold);margin-inline:.45em;}
.header-service{
  display:flex;
  align-items:center;
  gap:12px;
  font-family:var(--font-mono);
  font-size:.7rem;
  letter-spacing:.1em;
}
.header-service__link{
  color:var(--gold-bright);
  border-bottom:1px solid rgba(230,201,143,.45);
  padding-bottom:1px;
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.header-service__link:hover{color:var(--paper);border-color:var(--paper);}
.header-service__mail{color:rgba(242,235,221,.62);}
.header-service__note{
  color:rgba(242,235,221,.48);
  padding-left:12px;
  border-left:1px solid rgba(201,162,94,.28);
}

/* 下层：主栏目 */
.header-main{position:relative;background:var(--ink);}
.header-main__inner{
  display:flex;
  align-items:center;
  gap:clamp(12px,2.4vw,32px);
  min-height:64px;
  padding-block:9px;
}
.header-wordmark{
  display:none;
  font-family:var(--font-display);
  font-size:.95rem;
  letter-spacing:.18em;
  color:var(--paper);
  white-space:nowrap;
}

.site-nav{margin-inline-end:auto;}
.site-nav__list{
  display:flex;
  align-items:center;
  gap:clamp(14px,2.2vw,32px);
  flex-wrap:wrap;
}
.site-nav__link{
  position:relative;
  display:inline-flex;
  align-items:baseline;
  gap:8px;
  padding:11px 2px;
  font-size:.94rem;
  letter-spacing:.06em;
  color:rgba(242,235,221,.78);
  transition:color .18s var(--ease);
}
.site-nav__index{
  font-family:var(--font-mono);
  font-size:.64rem;
  letter-spacing:.1em;
  color:rgba(201,162,94,.72);
  transition:color .18s var(--ease);
}
.site-nav__link::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:2px;
  height:1px;
  background:var(--gold);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .22s var(--ease);
}
.site-nav__link:hover{color:var(--paper);}
.site-nav__link:hover::after{transform:scaleX(1);}
.site-nav__link[aria-current="page"]{color:var(--gold-bright);}
.site-nav__link[aria-current="page"] .site-nav__index{color:var(--gold-bright);}
.site-nav__link[aria-current="page"]::after{
  height:2px;
  background:var(--gold-bright);
  transform:scaleX(1);
}

/* 收藏徽章 */
.save-badge{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  gap:9px;
  padding:9px 15px;
  border:1px solid var(--gold);
  background:rgba(201,162,94,.10);
  color:var(--gold-bright);
  font-size:.78rem;
  letter-spacing:.16em;
  white-space:nowrap;
  box-shadow:0 10px 24px rgba(0,0,0,.30);
  animation:badgeFloat 7s ease-in-out infinite;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.save-badge:hover{background:var(--gold);color:var(--ink);transform:translateY(-2px);}
.save-badge__dot{
  width:6px;
  height:6px;
  border-radius:50%;
  background:currentColor;
  box-shadow:0 0 0 3px rgba(230,201,143,.22);
}
.save-badge__text{line-height:1;}
@keyframes badgeFloat{
  0%,100%{transform:translateY(0);}
  50%{transform:translateY(-3px);}
}

/* 移动菜单按钮 */
.nav-toggle{
  display:none;
  align-items:center;
  gap:10px;
  padding:9px 13px;
  border:1px solid rgba(201,162,94,.48);
  color:var(--gold-bright);
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.16em;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.nav-toggle:hover{border-color:var(--gold);background:rgba(201,162,94,.10);}
.nav-toggle__bars{display:grid;gap:4px;width:16px;}
.nav-toggle__bar{
  height:1px;
  width:100%;
  background:currentColor;
  transition:transform .22s var(--ease),opacity .18s var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1){transform:translateY(5px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3){transform:translateY(-5px) rotate(-45deg);}
.nav-toggle__label{line-height:1;}

/* 桌面端滚动压缩上层 */
@media (min-width:960px){
  .site-header.is-compact .header-top{
    max-height:0;
    opacity:0;
    border-bottom-color:transparent;
  }
}

@media (max-width:860px){
  .header-service{display:none;}
}

/* 移动 / 平板导航 */
@media (max-width:959px){
  .header-wordmark{display:inline-block;}
  .header-main__inner{justify-content:space-between;}
  .nav-toggle{display:inline-flex;}
  .save-badge{padding:8px 12px;font-size:.72rem;letter-spacing:.12em;}
  .site-nav{
    position:absolute;
    left:0;
    right:0;
    top:100%;
    margin-inline-end:0;
    background:var(--ink-3);
    border-top:1px solid rgba(201,162,94,.26);
    border-bottom:1px solid rgba(201,162,94,.42);
    box-shadow:0 22px 40px rgba(0,0,0,.38);
    max-height:0;
    overflow:hidden;
    transition:max-height .28s var(--ease);
  }
  .site-nav[data-open="true"]{
    max-height:min(72vh,560px);
    overflow-y:auto;
  }
  .site-nav__list{
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:8px var(--gutter) 20px;
  }
  .site-nav__item + .site-nav__item{border-top:1px solid rgba(242,235,221,.09);}
  .site-nav__link{
    width:100%;
    padding:15px 0;
    font-size:1rem;
    justify-content:flex-start;
  }
  .site-nav__link::after{display:none;}
  .site-nav__link[aria-current="page"]{
    color:var(--gold-bright);
    box-shadow:inset 3px 0 0 var(--gold-bright);
    padding-left:12px;
  }
  .site-nav__link[aria-current="page"] .site-nav__index{color:var(--gold-bright);}
}

/* ============================================================
   页脚 · 档案柜与票据齿孔
   ============================================================ */
.site-footer{
  margin-top:clamp(48px,7vw,96px);
  background:var(--ink);
  color:rgba(242,235,221,.80);
  border-top:1px solid var(--hairline-gold);
}
.footer-rule{
  height:6px;
  background:repeating-linear-gradient(90deg,var(--gold) 0 12px,transparent 12px 26px);
  opacity:.55;
}
.footer-inner{padding-block:clamp(34px,5vw,64px) clamp(18px,3vw,28px);}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1.5fr) repeat(3,minmax(0,.8fr)) minmax(0,1.5fr);
  gap:clamp(24px,3vw,44px);
}
.footer-brand__name{
  font-family:var(--font-display);
  font-weight:400;
  font-size:1.32rem;
  letter-spacing:.22em;
  color:var(--paper);
}
.footer-brand__summary{
  margin-top:14px;
  max-width:32ch;
  font-size:.88rem;
  line-height:1.8;
  color:rgba(242,235,221,.66);
}
.footer-brand__cta{
  display:inline-block;
  margin-top:20px;
  padding:10px 18px;
  border:1px solid var(--gold);
  color:var(--gold-bright);
  font-size:.78rem;
  letter-spacing:.16em;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.footer-brand__cta:hover{background:var(--gold);color:var(--ink);}

.footer-col__title{
  display:flex;
  align-items:baseline;
  gap:9px;
  padding-bottom:12px;
  margin-bottom:14px;
  border-bottom:1px solid rgba(201,162,94,.24);
  font-size:.8rem;
  letter-spacing:.2em;
  color:var(--paper);
}
.footer-col__index{
  font-family:var(--font-mono);
  font-size:.66rem;
  letter-spacing:.1em;
  color:var(--gold);
}
.footer-col__list{display:grid;gap:10px;}
.footer-col__link{
  display:inline-block;
  font-size:.86rem;
  color:rgba(242,235,221,.66);
  transition:color .18s var(--ease),transform .18s var(--ease);
}
.footer-col__link:hover{color:var(--gold-bright);transform:translateX(3px);}

.footer-contact__list{display:grid;gap:10px;}
.footer-contact__item{
  display:grid;
  grid-template-columns:44px minmax(0,1fr);
  gap:10px;
  font-size:.82rem;
  line-height:1.6;
}
.footer-contact__label{
  font-family:var(--font-mono);
  font-size:.68rem;
  letter-spacing:.12em;
  color:var(--gold);
  padding-top:2px;
}
.footer-contact__value{color:rgba(242,235,221,.78);word-break:break-word;}
.footer-contact__note{
  margin-top:14px;
  padding-top:12px;
  border-top:1px dashed rgba(201,162,94,.28);
  font-size:.74rem;
  line-height:1.7;
  color:rgba(242,235,221,.48);
}

.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  margin-top:clamp(28px,4vw,48px);
  padding-top:18px;
  border-top:1px solid rgba(201,162,94,.24);
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.1em;
  color:rgba(242,235,221,.50);
}
.footer-bottom__nav{display:flex;flex-wrap:wrap;gap:16px;}
.footer-bottom__link{
  color:rgba(242,235,221,.62);
  transition:color .18s var(--ease);
}
.footer-bottom__link:hover{color:var(--gold-bright);}
.footer-bottom__icp{color:rgba(242,235,221,.44);}

@media (max-width:1080px){
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-brand{grid-column:1 / -1;}
  .footer-contact{grid-column:1 / -1;}
}
@media (max-width:640px){
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .footer-brand__summary{max-width:none;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
}

/* ============================================================
   脚本生成元素：滚动进度 / 返回顶部
   ============================================================ */
.scroll-progress{
  position:fixed;
  top:0;
  left:0;
  right:0;
  height:2px;
  z-index:120;
  pointer-events:none;
  background:transparent;
}
.scroll-progress__bar{
  display:block;
  width:0;
  height:100%;
  background:linear-gradient(90deg,var(--gold),var(--gold-bright));
  transition:width .1s linear;
}
.to-top{
  position:fixed;
  right:clamp(14px,3vw,32px);
  bottom:clamp(14px,3vw,32px);
  z-index:110;
  width:46px;
  height:46px;
  display:grid;
  place-items:center;
  background:var(--ink);
  color:var(--gold-bright);
  border:1px solid var(--gold);
  font-family:var(--font-mono);
  font-size:.95rem;
  box-shadow:0 12px 28px rgba(11,36,31,.38);
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s var(--ease),background .2s var(--ease),color .2s var(--ease);
}
.to-top.is-visible{opacity:1;visibility:visible;transform:none;}
.to-top:hover{background:var(--gold);color:var(--ink);}

/* ============================================================
   减少动效
   ============================================================ */
@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;
  }
  .save-badge{animation:none;}
  .scroll-progress__bar{transition:none;}
  .to-top{transition:none;}
  .footer-col__link:hover{transform:none;}
}