/* ============================================================
   赢宝指南 · 共享样式表 /assets/site.css
   ============================================================ */

:root{
  --navy-900:#0B2545;
  --navy-700:#143A66;
  --blue-500:#1E5AA8;
  --teal:#2FB8A6;
  --orange:#E8722C;
  --orange-soft:#F5B075;
  --paper:#F7F3EA;
  --paper-2:#E7DFCF;
  --ink:#1B1B1B;
  --grey:#6E7787;
  --line:#C7D2DE;

  --rail-w:88px;
  --ledger-h:34px;
  --shell-max:1280px;
  --read-max:880px;

  --font-display:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-body:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,system-ui,sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono","Courier New",monospace;

  --hard-shadow:6px 6px 0 rgba(11,37,69,.16);
  --ease:cubic-bezier(.2,.7,.2,1);
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:118px}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img,picture,svg,video{max-width:100%;display:block;height:auto}
button{font:inherit;color:inherit;cursor:pointer;background:none;border:0}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0 0 1.2em}
a{color:var(--blue-500);text-decoration:none}
a:hover{color:var(--orange)}
h1,h2,h3,h4,h5{margin:0 0 .6em;font-family:var(--font-display);font-weight:800;line-height:1.14;letter-spacing:-.02em;font-stretch:condensed}
dl,dd,dt{margin:0}
[hidden]{display:none !important}
:focus:not(:focus-visible){outline:none}
:focus-visible{outline:3px solid var(--orange);outline-offset:3px}
::selection{background:var(--orange-soft);color:var(--navy-900)}

/* ---------- 排版与通用正文 ---------- */
.mono{font-family:var(--font-mono);font-size:.86em;letter-spacing:.08em;color:var(--grey)}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;color:var(--blue-500)}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--orange)}
.prose{max-width:760px;font-size:16.5px}
.prose h2{font-size:clamp(24px,3vw,32px);margin:2em 0 .6em}
.prose h2:first-child{margin-top:0}
.prose h3{font-size:20px;margin:1.6em 0 .5em}
.prose li{position:relative;padding-left:22px;margin-bottom:.5em}
.prose li::before{content:"";position:absolute;left:0;top:.75em;width:10px;height:2px;background:var(--orange)}
.section-divider{height:3px;border:0;margin:0;background:var(--navy-900)}

/* ---------- 布局 ---------- */
.container{width:100%;max-width:var(--shell-max);margin:0 auto;padding:0 clamp(20px,4vw,48px)}
.container--narrow{max-width:var(--read-max)}
.grid{display:grid;gap:24px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:16px 0;font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:var(--grey)}
.breadcrumb a{color:var(--blue-500)}
.breadcrumb a:hover{color:var(--orange)}
.breadcrumb__sep{color:var(--line)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 18px;font-size:14px;font-weight:600;line-height:1.2;
  border:2px solid transparent;border-radius:0;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.btn--primary{background:var(--orange);color:#fff;border-color:var(--orange);box-shadow:4px 4px 0 var(--navy-900)}
.btn--primary:hover{background:var(--orange-soft);color:var(--navy-900);border-color:var(--orange-soft)}
.btn--ghost{background:transparent;color:var(--blue-500);border-color:var(--blue-500)}
.btn--ghost:hover{background:var(--blue-500);color:var(--paper)}
.btn--line{
  background:transparent;color:rgba(247,243,234,.86);
  border-color:rgba(199,210,222,.45);
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.06em;padding:8px 12px;font-weight:400;
}
.btn--line:hover{border-color:var(--orange);color:var(--orange-soft);background:rgba(232,114,44,.08)}
.btn[data-copied="true"]{border-color:var(--teal);color:var(--teal)}
.btn[data-copied="false"]{border-color:var(--orange);color:var(--orange-soft)}

/* ---------- 索引条目 ---------- */
.entry-list{margin:0;padding:0;list-style:none;display:grid;border-top:3px solid var(--navy-900)}
.entry{
  display:grid;grid-template-columns:auto minmax(0,1fr);gap:4px 18px;
  padding:18px 10px 18px 4px;border-bottom:1px solid var(--line);
  align-items:start;transition:background .2s var(--ease),box-shadow .2s var(--ease);
}
.entry__no{font-family:var(--font-mono);font-size:13px;letter-spacing:.08em;color:var(--teal);padding-top:5px}
.entry__title{margin:0;font-size:19px;font-weight:800;letter-spacing:-.01em}
.entry__body{margin:6px 0 0;font-size:15.5px;color:var(--ink)}
.entry[data-active="true"]{background:var(--paper-2);box-shadow:inset 4px 0 0 var(--orange)}

/* ---------- 标签与面板 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 10px;font-family:var(--font-mono);font-size:12.5px;letter-spacing:.06em;
  background:var(--paper-2);color:var(--navy-700);border:1px solid var(--line);
  transition:background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.tag[aria-pressed="true"]{background:var(--orange-soft);border-color:var(--orange);color:var(--navy-900)}
.panel{background:var(--paper-2);border:2px solid var(--navy-900);box-shadow:var(--hard-shadow);padding:22px}

/* ---------- 图片容器（供页面阶段放图） ---------- */
.media-frame{
  position:relative;background:var(--paper-2);
  border:3px solid var(--navy-900);box-shadow:8px 8px 0 rgba(11,37,69,.16);
  overflow:hidden;
}
.media-frame img{display:block;width:100%;height:auto;aspect-ratio:16/10;object-fit:cover}
.media-frame--wide img{aspect-ratio:21/9}
.media-frame--square img{aspect-ratio:1/1}
.media-frame__cap{
  display:block;padding:10px 14px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:var(--navy-700);
  background:var(--paper);border-top:2px solid var(--navy-900);
}

/* ---------- skip link ---------- */
.skip-link{
  position:absolute;left:12px;top:-120px;z-index:200;
  padding:12px 20px;background:var(--orange);color:#fff;font-weight:700;
  transition:top .2s var(--ease);
}
.skip-link:focus{top:8px;color:#fff}

/* ---------- 头部：顶部横栏 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--navy-900)}
.header-bar{background:var(--navy-900);border-bottom:3px solid var(--orange)}
.ledger-strip{
  display:flex;align-items:center;gap:14px;
  min-height:var(--ledger-h);padding:6px clamp(16px,3vw,28px);
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em;
  color:rgba(247,243,234,.58);
  border-bottom:1px solid rgba(199,210,222,.22);
  transition:background .3s var(--ease);
}
.ledger-strip[data-flash="true"]{background:var(--navy-700)}
.ledger-strip__no{flex:none;color:var(--teal)}
.ledger-strip__rule{
  flex:1 1 auto;height:1px;
  background:repeating-linear-gradient(90deg,rgba(199,210,222,.5) 0 8px,transparent 8px 15px);
}
.ledger-strip__mid{flex:none}
.ledger-strip__right{flex:none;color:rgba(247,243,234,.42)}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:14px clamp(16px,3vw,28px);
}
.brand{display:flex;flex-direction:column;gap:2px;min-width:0}
.brand__mark{
  font-family:var(--font-display);font-weight:800;letter-spacing:-.01em;
  font-size:22px;line-height:1.2;color:var(--paper);
}
.brand__mark:hover{color:var(--orange-soft)}
.brand__line{margin:0;font-family:var(--font-mono);font-size:12.5px;letter-spacing:.06em;color:var(--teal)}
.brand__subline{margin:0;font-size:12.5px;color:rgba(247,243,234,.52)}

/* ---------- 主导航（左品牌 / 右栏目） ---------- */
.site-nav{display:flex;align-items:center}
.site-nav__list{display:flex;align-items:center;gap:2px;counter-reset:navitem}
.site-nav__link{
  position:relative;display:block;padding:10px 12px;
  font-size:15px;line-height:1.3;color:rgba(247,243,234,.78);
  border-bottom:3px solid transparent;
  counter-increment:navitem;
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.site-nav__link::before{
  content:counter(navitem,decimal-leading-zero);
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.08em;
  color:var(--teal);margin-right:7px;
}
.site-nav__link:hover{color:#fff;background:rgba(30,90,168,.28);border-bottom-color:var(--teal)}
.site-nav__link[aria-current="page"]{color:#fff;border-bottom-color:var(--orange)}
.site-nav__link[aria-current="page"]::before{color:var(--orange-soft)}

/* ---------- 移动导航按钮 ---------- */
.nav-toggle{display:none;align-items:center;gap:9px;padding:9px 13px;border:2px solid rgba(247,243,234,.42);color:var(--paper);font-size:13px;letter-spacing:.08em}
.nav-toggle:hover{border-color:var(--orange);color:var(--orange-soft)}
.nav-toggle__bar{display:block;width:18px;height:2px;background:currentColor;box-shadow:0 6px 0 currentColor}
.nav-toggle__text{font-family:var(--font-mono);font-size:12px;letter-spacing:.1em}

/* ---------- 头部：左侧品牌轨道 ---------- */
.brand-rail{
  background:var(--navy-900);color:var(--paper);
  border-right:1px solid rgba(199,210,222,.22);
  overflow:hidden;
}
.rail-brand{
  display:flex;flex-direction:column;align-items:center;gap:14px;
  padding:20px 0 16px;color:var(--paper);
}
.rail-brand:hover{color:var(--paper)}
.rail-brand__mark{font-family:var(--font-mono);font-size:11px;letter-spacing:.2em;color:var(--orange);writing-mode:vertical-rl}
.rail-brand__name{writing-mode:vertical-rl;font-family:var(--font-display);font-weight:800;font-size:15px;letter-spacing:.28em}
.rail-brand:hover .rail-brand__name{color:var(--orange-soft)}
.rail-drawers{display:flex;flex-direction:column;width:100%;border-top:1px solid rgba(199,210,222,.2)}
.rail-drawer{
  display:flex;flex-direction:column;align-items:center;gap:12px;
  padding:16px 6px;border-bottom:1px solid rgba(199,210,222,.2);
  color:rgba(247,243,234,.72);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.rail-drawer:hover{background:var(--navy-700);color:#fff}
.rail-drawer__no{font-family:var(--font-mono);font-size:10px;letter-spacing:.14em;color:var(--teal)}
.rail-drawer__text{writing-mode:vertical-rl;text-orientation:upright;font-size:12.5px;letter-spacing:.16em;line-height:1}
.rail-meter{display:flex;flex-direction:column;align-items:flex-end;gap:6px;padding:14px 14px 12px;width:100%}
.rail-meter__tick{display:block;width:18px;height:2px;background:rgba(247,243,234,.26);transition:background .2s var(--ease),width .2s var(--ease)}
.rail-meter__tick[data-on="true"]{background:var(--teal);width:32px}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:0;background:var(--navy-900);color:rgba(247,243,234,.72)}
.footer-frame{width:100%;max-width:var(--shell-max);margin:0 auto;padding:0 clamp(20px,4vw,48px)}
.footer-grid{display:grid;grid-template-columns:1.15fr .8fr 1fr 1.15fr;gap:32px;padding:56px 0 40px}
.footer-col{min-width:0}
.footer-title{
  margin:0 0 14px;padding-bottom:8px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;color:var(--teal);
  border-bottom:1px solid rgba(199,210,222,.25);
}
.footer-brandmark{margin:0 0 6px;font-family:var(--font-display);font-size:22px;font-weight:800;letter-spacing:-.01em;color:var(--paper)}
.footer-brandline{margin:0 0 12px;font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;color:var(--teal)}
.footer-brandsub{margin:0;font-size:13.5px;line-height:1.7;color:rgba(247,243,234,.58)}
.footer-list{display:grid;gap:4px}
.footer-list a{display:inline-block;padding:3px 0;font-size:14.5px;color:rgba(247,243,234,.74)}
.footer-list a:hover{color:var(--orange-soft)}
.footer-list__key{position:relative;padding-left:14px !important;color:var(--orange-soft) !important}
.footer-list__key::before{content:"";position:absolute;left:0;top:.95em;width:6px;height:6px;background:var(--orange)}
.footer-contact{display:grid;gap:14px}
.footer-contact__row{display:grid;gap:3px}
.footer-contact dt{font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;color:var(--grey)}
.footer-contact dd{font-size:14px;line-height:1.65;color:rgba(247,243,234,.8)}
.footer-note{margin:14px 0 0;font-size:12.5px;line-height:1.65;color:var(--grey)}
.footer-version{margin:0 0 16px;font-size:13.5px;line-height:1.75;color:rgba(247,243,234,.72)}
.footer-version strong{font-family:var(--font-mono);letter-spacing:.06em;color:var(--teal)}
.footer-actions{display:flex;flex-wrap:wrap;gap:10px}
.footer-log{margin-top:16px;padding:14px 16px;background:rgba(199,210,222,.08);border-left:3px solid var(--teal)}
.footer-log__item{margin:0 0 10px;font-size:13px;line-height:1.7;color:rgba(247,243,234,.7)}
.footer-log__item:last-child{margin-bottom:0}
.footer-log__item .mono{color:var(--teal);margin-right:8px}
.footer-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px 28px;
  padding:22px 0;border-top:1px solid rgba(199,210,222,.2);
}
.footer-closing{flex:1 1 300px;margin:0;font-size:13px;color:rgba(247,243,234,.55)}
.footer-legal{display:flex;flex-wrap:wrap;gap:18px}
.footer-legal a{font-size:13px;color:rgba(247,243,234,.74)}
.footer-legal a:hover{color:var(--orange-soft)}
.footer-meta{display:flex;flex-wrap:wrap;gap:8px;margin:0;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.06em;color:var(--grey)}
.footer-meta__sep{color:rgba(199,210,222,.4)}

/* ---------- 返回页首指针 ---------- */
.back-to-top{
  position:fixed;right:18px;bottom:18px;z-index:65;
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 14px;background:var(--orange);color:#fff;
  border:2px solid var(--navy-900);box-shadow:4px 4px 0 var(--navy-900);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s var(--ease),background .2s var(--ease);
}
.back-to-top[data-visible="true"]{opacity:1;visibility:visible;transform:none}
.back-to-top:hover{background:var(--navy-700)}
.back-to-top__arrow{font-size:14px;line-height:1}

/* ---------- 响应式 ---------- */
@media (min-width:960px){
  body{padding-left:var(--rail-w)}
  .brand-rail{position:fixed;top:0;left:0;bottom:0;width:var(--rail-w);z-index:70;display:flex;flex-direction:column;justify-content:space-between;align-items:center}
  .footer-col--brand{border-right:1px solid rgba(199,210,222,.18);padding-right:24px}
}

@media (max-width:1199.98px){
  .brand__subline{display:none}
  .site-nav__link{padding:10px 9px;font-size:14px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}

@media (max-width:959.98px){
  html{scroll-padding-top:110px}
  .brand-rail{display:none}
  .nav-toggle{display:inline-flex}
  .brand__line{display:none}
  .ledger-strip__right{display:none}
  .ledger-strip__mid{font-size:11px}
  .site-nav{
    position:fixed;top:0;right:0;bottom:0;z-index:80;
    width:min(86vw,340px);
    background:var(--navy-900);border-left:3px solid var(--orange);
    padding:78px 22px 32px;overflow-y:auto;
    transform:translateX(101%);visibility:hidden;
    transition:transform .28s var(--ease),visibility .28s var(--ease);
  }
  .site-nav[data-open="true"]{transform:translateX(0);visibility:visible}
  .site-nav__list{flex-direction:column;align-items:stretch;gap:0}
  .site-nav__link{
    padding:16px 10px;font-size:17px;
    border-bottom:1px solid rgba(199,210,222,.2);
    border-left:4px solid transparent;
  }
  .site-nav__link:hover{background:rgba(30,90,168,.3);border-bottom-color:rgba(199,210,222,.2)}
  .site-nav__link[aria-current="page"]{
    background:var(--navy-700);border-left-color:var(--orange);border-bottom-color:rgba(199,210,222,.2);
  }
  .site-nav__link::before{font-size:12px}
  .grid-2,.grid-3{grid-template-columns:minmax(0,1fr)}
  .footer-bar{flex-direction:column;align-items:flex-start;gap:14px}
}

@media (max-width:639.98px){
  .footer-grid{grid-template-columns:minmax(0,1fr);padding:42px 0 30px}
  .entry{grid-template-columns:minmax(0,1fr);gap:2px}
  .entry__no{padding-top:0}
  .back-to-top{right:12px;bottom:12px;padding:9px 12px}
}

@media (max-height:700px) and (min-width:960px){
  .rail-drawer{display:none}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
}