/* ==========================================================================
   新葡萄京品牌 · 共享层 /assets/site.css
   双层信息导航 + 编辑部索引页脚 + 切角面板系统
   ========================================================================== */

:root{
  --grape-900:#2A1040;
  --grape-800:#3B1859;
  --grape-700:#4B1F73;
  --grape-500:#6E35A3;
  --grape-300:#A97FD4;
  --grape-050:#F2ECF9;
  --green-600:#1F7A50;
  --green-650:#196A44;
  --green-200:#BFE9D6;
  --gold-500:#C8922F;
  --night:#0E1526;
  --paper:#FAF7F2;
  --ink:#1D1726;
  --ink-mute:#6B6277;

  --font-display:"Inter Tight","Inter","Helvetica Neue",system-ui,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  --font-body:"Inter","Helvetica Neue",system-ui,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  --font-mono:"SFMono-Regular","JetBrains Mono",Menlo,Consolas,"Liberation Mono",monospace;

  --ease:cubic-bezier(0.22,0.61,0.36,1);
  --maxw:1360px;
  --gutter:clamp(20px,5vw,96px);
  --cut:14px;
  --h-mast:58px;
  --h-nav:48px;
}

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

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

body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

img,svg,video{max-width:100%;display:block}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
[hidden]{display:none !important}

h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:900;
  line-height:1.08;
  letter-spacing:-.012em;
  margin:0 0 .55em;
  text-wrap:balance;
}
h1{font-size:clamp(2.4rem,5.6vw,3.75rem)}
h2{font-size:clamp(1.55rem,3vw,2.05rem)}
h3{font-size:clamp(1.12rem,2vw,1.4rem);font-weight:800;line-height:1.25}
h4{font-size:1.02rem;font-weight:800}
p{margin:0 0 1.1em}

a{color:var(--grape-500);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--grape-700)}

:focus-visible{outline:2px solid var(--green-600);outline-offset:2px;border-radius:0}
.masthead :focus-visible,
.navline :focus-visible,
.site-footer :focus-visible,
.panel--deep :focus-visible{outline-color:var(--green-200)}

/* ---------- 布局与文本工具 ---------- */

.wrap{
  width:min(calc(100% - (var(--gutter) * 2)),var(--maxw));
  margin-inline:auto;
}

.visually-hidden{
  position:absolute!important;
  width:1px;height:1px;
  margin:-1px;padding:0;border:0;
  overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);
  white-space:nowrap;
}

.skip-link{
  position:absolute;
  left:var(--gutter);
  top:-72px;
  z-index:140;
  padding:10px 18px;
  background:var(--green-600);
  color:#F3FFF9;
  font-family:var(--font-display);
  font-weight:800;
  font-size:.9rem;
  text-decoration:none;
  --cut:12px;
  clip-path:polygon(0 0,calc(100% - var(--cut)) 0,100% var(--cut),100% 100%,0 100%);
  transition:top 180ms var(--ease);
}
.skip-link:focus{top:8px;color:#F3FFF9}

.mono{
  font-family:var(--font-mono);
  font-size:.78em;
  letter-spacing:.06em;
  font-variant-numeric:tabular-nums;
}

.eyebrow{
  display:inline-block;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--grape-500);
  margin:0 0 14px;
}
.panel--deep .eyebrow,
.site-footer .eyebrow{color:var(--gold-500)}

.section-index{
  display:block;
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.18em;
  color:var(--grape-300);
  margin-bottom:10px;
}

.vnote{
  writing-mode:vertical-rl;
  text-orientation:mixed;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.34em;
  color:var(--grape-300);
  margin:0;
  user-select:none;
}

.lede{
  font-size:clamp(1.05rem,1.5vw,1.24rem);
  line-height:1.72;
  color:var(--ink-mute);
  max-width:34em;
}

.prose{max-width:38em}
.prose p{margin:0 0 1.15em}
.prose h2{margin:1.9em 0 .5em}
.prose h3{margin:1.6em 0 .45em}
.prose ul,.prose ol{margin:0 0 1.15em;padding-left:1.35em;list-style:disc}
.prose ol{list-style:decimal}
.prose li{margin-bottom:.4em}
.prose code{
  font-family:var(--font-mono);
  font-size:.86em;
  background:var(--grape-050);
  padding:2px 6px;
}

.crumbs{margin:0 0 28px}
.crumbs ol{display:flex;flex-wrap:wrap;gap:8px;font-family:var(--font-mono);font-size:12px;letter-spacing:.05em;color:var(--ink-mute)}
.crumbs li+li::before{content:"/";margin-right:8px;color:var(--grape-300)}
.crumbs a{color:var(--ink-mute);text-decoration:none}
.crumbs a:hover{color:var(--grape-500);text-decoration:underline}
.crumbs [aria-current="page"]{color:var(--grape-700)}

.link-more{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--font-display);
  font-weight:800;
  font-size:.92rem;
  color:var(--grape-500);
  text-decoration:none;
  border-bottom:1px solid rgba(110,53,163,.35);
  padding-bottom:2px;
  transition:color 180ms var(--ease),border-color 180ms var(--ease);
}
.link-more::after{content:"→";transition:transform 180ms var(--ease)}
.link-more:hover{color:var(--grape-700);border-color:var(--grape-700)}
.link-more:hover::after{transform:translateX(3px)}

.rule-slash{
  border:0;
  height:1px;
  margin:44px 0;
  background:linear-gradient(90deg,rgba(110,53,163,.65),rgba(110,53,163,0));
}

/* ---------- 按钮与标签 ---------- */

.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:11px 20px;
  font-family:var(--font-display);
  font-weight:800;
  font-size:.92rem;
  letter-spacing:.02em;
  line-height:1.2;
  text-decoration:none;
  border:1px solid transparent;
  --cut:12px;
  clip-path:polygon(0 0,calc(100% - var(--cut)) 0,100% var(--cut),100% 100%,0 100%);
  transition:background-color 180ms var(--ease),color 180ms var(--ease),border-color 180ms var(--ease),transform 180ms var(--ease);
}
.btn:hover{transform:translateY(-2px)}
.btn--primary{background:var(--green-600);color:#F3FFF9}
.btn--primary:hover{background:var(--green-650);color:#F3FFF9}
.btn--outline{border-color:var(--grape-500);color:var(--grape-700);background:transparent}
.btn--outline:hover{background:var(--grape-050);color:var(--grape-900)}
.btn--ghost{border-color:var(--grape-300);color:var(--grape-050);background:transparent}
.btn--ghost:hover{background:rgba(169,127,212,.18);color:#fff}
.btn--pin{border-color:rgba(200,146,47,.6);color:var(--gold-500);background:transparent;padding:8px 16px;font-size:.85rem}
.btn--pin:hover{background:rgba(200,146,47,.14);color:#EFC878}

.chip{
  display:inline-flex;
  align-items:center;
  padding:6px 13px;
  font-family:var(--font-display);
  font-weight:700;
  font-size:.8rem;
  letter-spacing:.02em;
  text-decoration:none;
  background:var(--grape-050);
  color:var(--grape-700);
  --cut:8px;
  clip-path:polygon(0 0,calc(100% - var(--cut)) 0,100% var(--cut),100% 100%,0 100%);
  transition:background-color 160ms var(--ease),color 160ms var(--ease);
}
.chip:hover{background:var(--green-200);color:var(--grape-900)}

/* ---------- 面板与通用组件 ---------- */

.panel{
  position:relative;
  padding:26px 28px;
  background:var(--grape-050);
  color:var(--ink);
  --cut:18px;
  clip-path:polygon(0 0,calc(100% - var(--cut)) 0,100% var(--cut),100% 100%,0 100%);
}
.panel--lilac{background:var(--grape-050)}
.panel--deep{background:var(--night);color:var(--grape-050)}
.panel--deep h2,.panel--deep h3{color:var(--paper)}
.panel--deep p{color:rgba(242,236,249,.82)}

.note-block{
  padding:16px 20px;
  border-left:3px solid var(--grape-500);
  background:rgba(242,236,249,.7);
  font-size:.93rem;
  line-height:1.7;
  color:var(--ink-mute);
  max-width:38em;
}

.data-table{
  width:100%;
  border-collapse:collapse;
  font-size:.92rem;
  line-height:1.6;
}
.data-table caption{
  text-align:left;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--ink-mute);
  padding-bottom:10px;
}
.data-table th,
.data-table td{
  padding:10px 14px;
  text-align:left;
  border-bottom:1px solid rgba(110,53,163,.2);
  vertical-align:top;
}
.data-table thead th{
  font-family:var(--font-display);
  font-weight:800;
  font-size:.88rem;
  background:var(--grape-050);
  color:var(--grape-700);
}
.data-table tbody tr:nth-child(even){background:rgba(242,236,249,.5)}
.data-table tbody tr:hover{background:var(--green-200)}

.media-frame{
  position:relative;
  overflow:hidden;
  aspect-ratio:4/3;
  background:
    radial-gradient(circle at 62% 38%,rgba(169,127,212,.45),transparent 62%),
    linear-gradient(150deg,var(--grape-050),#FFFFFF 58%,var(--grape-050));
  border:1px solid rgba(110,53,163,.18);
  --cut:18px;
  clip-path:polygon(0 0,calc(100% - var(--cut)) 0,100% var(--cut),100% 100%,0 100%);
}
.media-frame>img,
.media-frame>svg,
.media-frame>picture>img{width:100%;height:100%;object-fit:cover}
.media-frame--wide{aspect-ratio:16/9}
.media-frame--tall{aspect-ratio:3/4}
.media-frame--square{aspect-ratio:1/1}
.media-frame--deep{
  background:
    radial-gradient(circle at 50% 42%,rgba(169,127,212,.36),transparent 64%),
    var(--night);
  border-color:rgba(169,127,212,.32);
}
.media-frame__caption{
  position:absolute;
  left:14px;
  bottom:12px;
  padding:4px 9px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.06em;
  color:var(--grape-050);
  background:rgba(42,16,64,.72);
}

/* ---------- 主体容器 ---------- */

.site-main{display:block}
#main-content{scroll-margin-top:130px}

/* ---------- 双层信息导航 ---------- */

.site-header{
  position:sticky;
  top:0;
  z-index:80;
  display:flex;
  flex-direction:column;
}

.masthead{
  background:var(--night);
  color:var(--grape-050);
}
.masthead__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:var(--h-mast);
  padding-block:9px;
  transition:min-height 200ms var(--ease),padding 200ms var(--ease);
}
.site-header[data-scrolled] .masthead__inner{min-height:46px;padding-block:5px}

.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  text-decoration:none;
  color:var(--paper);
}
.brand:hover{color:var(--paper)}
.brand__glyph{
  width:22px;
  height:22px;
  flex:0 0 auto;
  border-radius:50%;
  background:radial-gradient(circle at 34% 32%,var(--grape-300),var(--grape-700) 62%,var(--grape-900));
  box-shadow:0 0 0 1px rgba(169,127,212,.5),0 0 16px rgba(169,127,212,.45);
}
.brand__name{
  font-family:var(--font-display);
  font-weight:900;
  font-size:1.02rem;
  letter-spacing:.06em;
  white-space:nowrap;
}
.brand__meta{
  padding-left:12px;
  border-left:1px solid rgba(169,127,212,.4);
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.08em;
  color:var(--gold-500);
  white-space:nowrap;
}

.masthead__tools{
  display:flex;
  align-items:center;
  gap:14px;
}

.site-search{
  display:flex;
  align-items:center;
  gap:10px;
  padding:4px 10px 4px 14px;
  background:rgba(242,236,249,.07);
  border:1px solid rgba(169,127,212,.42);
  --cut:10px;
  clip-path:polygon(0 0,calc(100% - var(--cut)) 0,100% var(--cut),100% 100%,0 100%);
  transition:border-color 180ms var(--ease),background-color 180ms var(--ease);
}
.site-search:focus-within{
  border-color:var(--green-600);
  background:rgba(31,122,80,.14);
}
.site-search__input{
  width:clamp(110px,15ch,16ch);
  padding:5px 0;
  background:none;
  border:0;
  color:var(--paper);
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.02em;
  transition:width 200ms var(--ease);
}
.site-search__input::placeholder{color:rgba(169,127,212,.85)}
.site-search__input:focus{width:clamp(160px,24ch,26ch);outline:none}
.site-search__input::-webkit-search-cancel-button{filter:invert(.7)}
.site-search__count{
  font-size:11px;
  letter-spacing:.06em;
  color:var(--gold-500);
  white-space:nowrap;
}

.navline{
  background:var(--grape-700);
  border-top:1px solid rgba(169,127,212,.35);
}
.navline__inner{
  position:relative;
  display:flex;
  align-items:center;
  min-height:var(--h-nav);
}

.nav-toggle{
  display:none;
  align-items:center;
  gap:10px;
  padding:10px 4px;
  color:var(--paper);
  font-family:var(--font-display);
  font-weight:800;
  font-size:.92rem;
  letter-spacing:.04em;
}
.nav-toggle__bars{
  display:inline-flex;
  flex-direction:column;
  justify-content:space-between;
  width:18px;
  height:12px;
}
.nav-toggle__bars span{
  display:block;
  height:2px;
  background:currentColor;
  transition:transform 180ms var(--ease),opacity 180ms var(--ease);
}
.navline[data-open] .nav-toggle__bars span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.navline[data-open] .nav-toggle__bars span:nth-child(2){opacity:0}
.navline[data-open] .nav-toggle__bars span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

.nav-list{
  display:flex;
  align-items:center;
  gap:2px;
}
.nav-item{position:relative}

.nav-link{
  position:relative;
  display:block;
  padding:12px 16px;
  color:rgba(250,247,242,.84);
  font-family:var(--font-display);
  font-weight:800;
  font-size:.94rem;
  letter-spacing:.03em;
  text-decoration:none;
  transition:color 180ms var(--ease),background-color 180ms var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:16px;
  right:16px;
  bottom:5px;
  height:2px;
  background:var(--green-200);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform 200ms var(--ease);
}
.nav-link:hover,
.nav-link:focus-visible{color:#FFFFFF;background:rgba(169,127,212,.18)}
.nav-link:hover::after,
.nav-link:focus-visible::after{transform:scaleX(1)}
.nav-link[aria-current="page"]{color:#FFFFFF}
.nav-link[aria-current="page"]::after{transform:scaleX(1);background:var(--green-200)}

.nav-panel{
  position:absolute;
  top:100%;
  left:0;
  z-index:20;
  width:300px;
  padding:16px 18px;
  background:var(--grape-900);
  color:var(--grape-050);
  border:1px solid rgba(169,127,212,.35);
  border-top:2px solid var(--green-600);
  font-size:.85rem;
  line-height:1.62;
  opacity:0;
  visibility:hidden;
  transform:translateY(-6px);
  transition:opacity 200ms var(--ease),transform 200ms var(--ease),visibility 200ms var(--ease);
  --cut:14px;
  clip-path:polygon(0 0,calc(100% - var(--cut)) 0,100% var(--cut),100% 100%,0 100%);
}
.nav-panel p{margin:0;color:rgba(242,236,249,.8)}
.nav-panel__title{
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.14em;
  color:var(--gold-500);
  margin:0 0 6px;
}
.nav-item:hover .nav-panel,
.nav-item:focus-within .nav-panel{
  opacity:1;
  visibility:visible;
  transform:translateY(0);
}

.progress-rail{
  position:relative;
  height:2px;
  background:rgba(169,127,212,.18);
}
.progress-rail__fill{
  display:block;
  height:100%;
  width:0;
  background:linear-gradient(90deg,var(--green-600),var(--green-200));
}

/* ---------- 编辑部索引页脚 ---------- */

.site-footer{
  position:relative;
  margin-top:96px;
  background:var(--grape-900);
  color:var(--grape-050);
}
.site-footer::before{
  content:"";
  position:absolute;
  inset:0 0 auto 0;
  height:1px;
  background:linear-gradient(90deg,transparent,var(--gold-500) 22%,var(--grape-300) 68%,transparent);
}
.site-footer p{color:rgba(242,236,249,.8)}

.footer-grid{
  display:grid;
  grid-template-columns:1.35fr 1fr 1fr;
  gap:48px;
  padding:64px 0 44px;
}
.footer-col__title{
  font-family:var(--font-mono)!important;
  font-size:12px!important;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--gold-500)!important;
  margin:0 0 16px;
}
.footer-brand{
  font-family:var(--font-display);
  font-weight:800;
  font-size:1rem;
  color:var(--paper)!important;
  margin:0 0 14px;
}
.footer-list{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:6px 20px;
}
.footer-link{
  color:rgba(242,236,249,.78);
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color 160ms var(--ease),border-color 160ms var(--ease);
}
.footer-link:hover{
  color:var(--green-200);
  border-bottom-color:var(--green-200);
}
.footer-contact li{margin-bottom:8px;color:rgba(242,236,249,.8)}
.footer-contact .mono{color:var(--gold-500)}
.footer-note{
  font-size:.85rem;
  line-height:1.6;
  color:rgba(242,236,249,.6)!important;
  margin:10px 0 0;
}

.footer-search{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:14px 24px;
  padding:20px 0;
  border-top:1px solid rgba(169,127,212,.28);
}
.footer-search__label{
  font-size:11.5px;
  letter-spacing:.16em;
  color:var(--gold-500);
  margin:0;
}
.footer-search__links{display:flex;flex-wrap:wrap;gap:10px}

.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px 28px;
  padding:20px 0 34px;
  border-top:1px solid rgba(169,127,212,.22);
  font-size:.82rem;
}
.footer-bottom p{margin:0;color:rgba(242,236,249,.62)}
.footer-legal{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.footer-legal .mono{color:var(--gold-500)}

/* ---------- 响应式 ---------- */

@media (max-width:1100px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px}
}

@media (max-width:900px){
  :root{--h-mast:54px}

  .masthead__inner{flex-wrap:wrap;gap:12px}
  .brand__meta{font-size:11px;letter-spacing:.05em}
  .masthead__tools{width:100%;justify-content:space-between}
  .site-search{flex:1 1 auto}
  .site-search__input{width:auto;flex:1 1 auto;min-width:0}
  .site-search__input:focus{width:auto}

  .navline__inner{min-height:46px}
  .nav-toggle{display:inline-flex}
  .nav-list{
    position:absolute;
    top:calc(100% + 1px);
    left:0;
    right:0;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    background:var(--grape-800);
    border:1px solid rgba(169,127,212,.35);
    --cut:18px;
    clip-path:polygon(0 0,calc(100% - var(--cut)) 0,100% var(--cut),100% 100%,0 100%);
  }
  .navline[data-open] .nav-list{display:flex}
  .nav-item{border-bottom:1px solid rgba(169,127,212,.18)}
  .nav-item:last-child{border-bottom:0}
  .nav-link{padding:14px 20px;font-size:1rem}
  .nav-link::after{left:20px;right:auto;width:26px;bottom:8px}
  .nav-panel{display:none}

  .footer-grid{grid-template-columns:1fr;gap:34px;padding:48px 0 34px}
  .footer-list{grid-template-columns:1fr 1fr}
}

@media (max-width:640px){
  body{font-size:16.5px}
  .brand__meta{display:none}
  .btn--pin{display:none}
  .site-footer{margin-top:64px}
  .footer-list{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .media-frame,
  .media-frame--deep{--cut:14px}
  .panel{padding:22px 20px;--cut:14px}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms!important;
    animation-iteration-count:1!important;
    transition-duration:.001ms!important;
  }
  .btn:hover{transform:none}
  .link-more:hover::after{transform:none}
  .nav-panel{transform:none}
}