/* ===== 99真人中心 · 共享外壳 ===== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:104px}
body,h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
img,svg{max-width:100%}
button{font:inherit}

:root{
  --ink:#0E1B2C;
  --ink-deep:#081320;
  --ink-2:#1F3652;
  --cinnabar:#B8392B;
  --cinnabar-deep:#8A2A20;
  --gold:#D9B44A;
  --celadon:#5F9182;
  --paper:#F5F1E8;
  --paper-2:#E6E1D5;
  --mist:#8FA6BF;
  --muted:#5C6B7D;
  --text:#14181E;

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

  --radius-xl:28px;
  --radius-lg:20px;
  --radius-md:14px;
  --radius-pill:999px;

  --shell:1180px;
  --gutter:clamp(18px,4vw,48px);
  --header-pad:clamp(13px,2vw,20px);
  --scroll-progress:0;
}

body{
  background:var(--paper);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

::selection{background:rgba(184,57,43,.22);color:var(--ink)}

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

#main-content{display:block;scroll-margin-top:104px}

/* ---------- 跳转链接 ---------- */
.skip-link{
  position:fixed;left:16px;top:-90px;z-index:400;
  padding:12px 22px;border-radius:var(--radius-pill);
  background:var(--gold);color:var(--ink);
  font-size:13px;font-weight:700;letter-spacing:.1em;text-decoration:none;
  transition:top .18s ease;
}
.skip-link:focus,.skip-link:focus-visible{top:14px;outline:2px solid var(--paper);outline-offset:3px}

/* ---------- 页头 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:200;
  color:var(--paper);
  background:linear-gradient(180deg,rgba(14,27,44,.94) 0%,rgba(14,27,44,.62) 58%,rgba(14,27,44,0) 100%);
  transition:background-color .24s ease,box-shadow .24s ease;
}
.site-header[data-scrolled]{
  background:var(--ink);
  box-shadow:0 1px 0 rgba(217,180,74,.34),0 22px 44px rgba(4,10,18,.34);
}
.site-header__inner{
  max-width:var(--shell);
  margin:0 auto;
  padding:var(--header-pad) var(--gutter);
  display:flex;
  align-items:center;
  gap:clamp(12px,2vw,30px);
  transition:padding .24s ease;
}
.site-header[data-scrolled] .site-header__inner{
  padding-top:calc(var(--header-pad) * .6);
  padding-bottom:calc(var(--header-pad) * .6);
}

/* 署名 */
.brand{
  position:relative;
  flex:0 0 auto;
  display:flex;align-items:center;gap:13px;
  padding:6px 4px 9px;
  color:inherit;text-decoration:none;border-radius:var(--radius-md);
  transition:opacity .18s ease;
}
.brand:hover{opacity:.92}
.brand__mark{
  display:grid;place-items:center;
  width:42px;height:42px;flex:0 0 auto;
  border-radius:var(--radius-md);
  background:linear-gradient(150deg,var(--cinnabar),var(--cinnabar-deep));
  box-shadow:inset 0 0 0 1px rgba(217,180,74,.55),0 10px 20px rgba(6,14,24,.35);
  font-family:var(--font-mono);font-size:15px;font-weight:700;letter-spacing:.12em;color:var(--paper);
}
.brand__text{display:flex;flex-direction:column;gap:3px}
.brand__name{
  font-family:var(--font-serif);
  font-weight:800;font-size:17px;letter-spacing:.14em;line-height:1.15;color:var(--paper);
}
.brand__sub{
  font-family:var(--font-mono);font-size:9.5px;letter-spacing:.24em;
  color:var(--mist);line-height:1;white-space:nowrap;
}
.brand__rule{
  position:absolute;left:4px;bottom:0;height:1px;
  width:calc(100% - (var(--scroll-progress) * 62%));
  min-width:26px;
  background:linear-gradient(90deg,var(--gold),rgba(217,180,74,0));
  transition:width .18s linear;
}

/* 抽屉按钮 */
.nav-toggle{
  display:none;
  margin-left:auto;
  align-items:center;gap:10px;
  padding:10px 15px;
  border:1px solid rgba(217,180,74,.45);
  border-radius:var(--radius-pill);
  background:rgba(245,241,232,.08);
  color:var(--paper);
  font-size:12px;letter-spacing:.16em;
  cursor:pointer;
  transition:background-color .18s ease,border-color .18s ease;
}
.nav-toggle:hover{background:rgba(245,241,232,.16);border-color:var(--gold)}
.nav-toggle__bars{display:grid;gap:4px;width:18px}
.nav-toggle__bars span{display:block;height:2px;border-radius:2px;background:currentColor;transition:transform .2s ease,opacity .2s ease}
.nav-toggle__label{line-height:1}
.site-header[data-open] .nav-toggle__bars span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.site-header[data-open] .nav-toggle__bars span:nth-child(2){opacity:0}
.site-header[data-open] .nav-toggle__bars span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* 主栏目 */
.site-nav{flex:1 1 auto;display:flex;justify-content:center;align-items:center}
.site-nav__list{display:flex;align-items:center;gap:clamp(2px,.8vw,12px)}
.site-nav__item{display:flex;align-items:center}
.site-nav__link{
  position:relative;
  display:flex;align-items:baseline;gap:6px;
  padding:10px 9px 12px;
  border-radius:10px;
  color:rgba(245,241,232,.78);
  font-size:14px;letter-spacing:.06em;text-decoration:none;white-space:nowrap;
  transition:color .18s ease,background-color .18s ease;
}
.site-nav__label{white-space:nowrap;line-height:1.2}
.site-nav__num{
  font-family:var(--font-mono);font-size:10.5px;font-weight:500;
  letter-spacing:.16em;color:var(--gold);opacity:.8;
  transition:opacity .18s ease;
}
.site-nav__link::after{
  content:"";position:absolute;left:9px;right:9px;bottom:4px;height:2px;
  background:var(--cinnabar);border-radius:2px;
  transform:scaleX(0);transform-origin:left;
  transition:transform .2s ease;
}
.site-nav__link:hover{color:var(--paper);background:rgba(245,241,232,.07)}
.site-nav__link:hover .site-nav__num{opacity:1}
.site-nav__link:hover::after{transform:scaleX(1)}
.site-nav__link[aria-current="page"]{color:var(--paper);font-weight:700}
.site-nav__link[aria-current="page"] .site-nav__num{opacity:1;color:var(--gold)}
.site-nav__link[aria-current="page"]::after{transform:scaleX(1)}

/* 抽屉内附加区 */
.site-nav__actions{display:none;flex-wrap:wrap;gap:10px;margin-top:6px}
.site-nav__aside{display:none}
.site-nav__legend{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.24em;
  color:var(--gold);margin-bottom:14px;
}
.site-nav__index{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px 18px}
.nav-index__item{display:flex;align-items:baseline;gap:9px;padding:5px 0;font-size:13px;color:rgba(245,241,232,.74)}
.nav-index__code{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.14em;color:var(--celadon);flex:0 0 auto}
.nav-index__name{letter-spacing:.04em}

/* 胶囊 */
.header-caps{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.pill{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:9px 17px;border-radius:var(--radius-pill);
  font-size:12.5px;letter-spacing:.08em;text-decoration:none;white-space:nowrap;
  border:1px solid transparent;
  transition:background-color .18s ease,border-color .18s ease,color .18s ease,transform .18s ease;
}
.pill--ghost{color:var(--paper);border-color:rgba(217,180,74,.5);background:rgba(217,180,74,.08)}
.pill--ghost:hover{background:rgba(217,180,74,.2);border-color:var(--gold);transform:translateY(-2px)}
.pill--gold{background:var(--gold);color:var(--ink);font-weight:700;box-shadow:0 10px 22px rgba(217,180,74,.22)}
.pill--gold:hover{background:#E8C65F;transform:translateY(-2px)}

/* 进度线 */
.header-progress{position:absolute;left:0;right:0;bottom:0;height:2px;background:rgba(217,180,74,.14)}
.header-progress__bar{
  display:block;height:100%;width:100%;
  transform:scaleX(var(--scroll-progress));transform-origin:left;
  background:linear-gradient(90deg,var(--gold),var(--cinnabar));
}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(64px,9vw,120px);
  background:var(--ink);
  color:var(--paper);
}
.site-footer::before{
  content:"";display:block;height:3px;
  background:linear-gradient(90deg,var(--cinnabar) 0 18%,var(--gold) 18% 33%,var(--celadon) 33% 45%,var(--ink-2) 45% 100%);
}
.footer-shell{max-width:var(--shell);margin:0 auto;padding:clamp(44px,6vw,76px) var(--gutter) 0}
.footer-grid{
  display:grid;
  grid-template-columns:1.55fr 1fr 1fr 1.35fr;
  gap:clamp(24px,3.4vw,52px);
}
.footer-col{min-width:0}
.footer-col--brand{display:flex;flex-direction:column;gap:14px}
.footer-col__title{
  display:flex;align-items:center;gap:12px;
  margin-bottom:16px;
  font-family:var(--font-mono);font-size:10.5px;font-weight:500;
  letter-spacing:.24em;color:var(--gold);text-transform:uppercase;
}
.footer-col__title::after{content:"";flex:1;height:1px;background:rgba(217,180,74,.26)}
.footer-brand{display:flex;align-items:center;gap:10px}
.footer-brand__name{
  font-family:var(--font-serif);font-weight:800;font-size:22px;
  letter-spacing:.16em;color:var(--paper);line-height:1.2;
}
.footer-tagline{
  font-family:var(--font-serif);font-size:clamp(17px,1.8vw,20px);
  letter-spacing:.1em;line-height:1.5;color:rgba(245,241,232,.94);
  border-left:2px solid var(--cinnabar);padding-left:14px;
}
.footer-brand__note{font-size:13.5px;line-height:1.8;color:var(--mist);max-width:26em}
.footer-list{display:grid;gap:9px}
.footer-link{
  color:rgba(245,241,232,.72);
  font-size:14px;letter-spacing:.04em;text-decoration:none;
  border-bottom:1px solid transparent;border-radius:6px;
  transition:color .18s ease,border-color .18s ease;
}
.footer-link:hover{color:var(--gold);border-bottom-color:rgba(217,180,74,.5)}
.footer-meta{display:grid;gap:11px;font-size:13.5px;line-height:1.75;color:rgba(245,241,232,.72)}
.footer-meta__label{
  display:block;margin-bottom:1px;
  font-family:var(--font-mono);font-size:10px;letter-spacing:.2em;color:var(--mist);
}
.footer-bottom{
  margin-top:clamp(30px,4vw,50px);
  border-top:1px solid rgba(217,180,74,.22);
  padding:20px 0 30px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:12px 26px;
  font-size:12.5px;color:rgba(245,241,232,.58);
}
.footer-legal{display:flex;flex-wrap:wrap;gap:18px}
.footer-legal .footer-link{font-size:12.5px}
.footer-note{
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.14em;color:var(--celadon);
}
.footer-copyright{letter-spacing:.08em}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:14px 28px;border-radius:var(--radius-pill);
  font-family:inherit;font-size:14.5px;font-weight:700;letter-spacing:.08em;
  text-decoration:none;border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,background-color .18s ease,border-color .18s ease,box-shadow .18s ease,color .18s ease;
}
.btn--primary{background:var(--cinnabar);color:var(--paper);box-shadow:0 14px 28px rgba(184,57,43,.28)}
.btn--primary:hover{background:var(--cinnabar-deep);transform:translateY(-2px)}
.btn--ghost{background:transparent;color:var(--ink);border-color:rgba(14,27,44,.24)}
.btn--ghost:hover{border-color:var(--cinnabar);color:var(--cinnabar);transform:translateY(-2px)}
.btn--gold{background:var(--gold);color:var(--ink);box-shadow:0 14px 28px rgba(217,180,74,.26)}
.btn--gold:hover{background:#E8C65F;transform:translateY(-2px)}

/* ---------- 面包屑 ---------- */
.breadcrumb{margin:0 0 clamp(20px,3vw,30px)}
.breadcrumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.breadcrumb__item{
  display:flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;color:var(--muted);
}
.breadcrumb__item:not(:last-child)::after{content:"/";color:rgba(217,180,74,.8)}
.breadcrumb__link{color:var(--muted);text-decoration:none;border-radius:4px;transition:color .18s ease}
.breadcrumb__link:hover{color:var(--cinnabar)}
.breadcrumb__current{color:var(--cinnabar);font-weight:500}

/* ---------- 容器与章节 ---------- */
.page-shell{
  max-width:var(--shell);margin:0 auto;
  padding:clamp(88px,10vw,128px) var(--gutter) clamp(48px,6vw,80px);
}
.page-shell--narrow{max-width:820px}
.section{margin-top:clamp(40px,6vw,72px)}
.section__head{display:flex;flex-wrap:wrap;align-items:center;gap:12px 18px;margin-bottom:clamp(18px,2.4vw,28px)}
.section__index{font-family:var(--font-mono);font-size:12px;letter-spacing:.24em;color:var(--cinnabar)}
.section__title{
  font-family:var(--font-serif);font-weight:800;
  font-size:clamp(23px,3vw,36px);letter-spacing:.05em;line-height:1.28;color:var(--ink);
}
.section__rule{flex:1 1 60px;height:2px;min-width:40px;background:linear-gradient(90deg,var(--gold),rgba(217,180,74,0))}

/* ---------- 文本 ---------- */
.eyebrow{
  display:inline-block;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.26em;
  color:var(--cinnabar);text-transform:uppercase;
}
.lead{font-size:clamp(16px,1.6vw,18.5px);line-height:1.8;color:#2B3543;max-width:36em}
.prose{font-size:16.5px;line-height:1.85;color:var(--text);max-width:38em}
.prose p + p{margin-top:1.1em}
.prose h3{
  margin:1.7em 0 .6em;
  font-family:var(--font-serif);font-weight:800;font-size:20px;letter-spacing:.05em;color:var(--ink);
  padding-left:12px;border-left:3px solid var(--gold);
}
.prose ul,.prose ol{margin:1em 0;padding-left:1.3em;list-style:disc}
.prose ol{list-style:decimal}
.prose li + li{margin-top:.5em}
.prose a{color:var(--cinnabar);text-decoration:underline;text-underline-offset:3px}
.prose a:hover{color:var(--cinnabar-deep)}
.prose strong{color:var(--ink)}

/* ---------- Bento 模块板 ---------- */
.bento{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:clamp(14px,2vw,24px)}
.bento__cell{
  grid-column:span 12;
  min-width:0;
  border-radius:var(--radius-lg);
}
.bento__cell--full{grid-column:span 12}
@media (min-width:720px){
  .bento__cell{grid-column:span 6}
  .bento__cell--full{grid-column:span 12}
}
@media (min-width:1024px){
  .bento__cell{grid-column:span 4}
  .bento__cell--hero{grid-column:span 7}
  .bento__cell--aside{grid-column:span 5}
  .bento__cell--half{grid-column:span 6}
  .bento__cell--third{grid-column:span 4}
  .bento__cell--quarter{grid-column:span 3}
  .bento__cell--full{grid-column:span 12}
}

/* ---------- 卡片 ---------- */
.card{
  display:block;height:100%;
  padding:clamp(18px,2.4vw,26px);
  background:var(--paper-2);
  border:1px solid rgba(14,27,44,.08);
  border-radius:var(--radius-lg);
  text-decoration:none;color:inherit;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:0 20px 36px rgba(14,27,44,.14);border-color:rgba(217,180,74,.62)}
.card:focus-within{border-color:var(--gold);box-shadow:0 0 0 2px rgba(217,180,74,.55)}
.card--dark{background:var(--ink-2);border-color:rgba(217,180,74,.24);color:var(--paper)}
.card--dark .card__title{color:var(--paper)}
.card--dark .card__meta{color:var(--mist)}
.card__index{
  display:block;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.2em;color:var(--cinnabar);
}
.card--dark .card__index{color:var(--gold)}
.card__title{
  margin-top:9px;
  font-family:var(--font-serif);font-weight:800;font-size:19px;letter-spacing:.04em;line-height:1.4;color:var(--ink);
}
.card__meta{margin-top:9px;font-size:13px;line-height:1.75;color:var(--muted)}

/* ---------- 标签 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:var(--radius-pill);
  font-family:var(--font-mono);font-size:11px;font-weight:500;letter-spacing:.12em;
  background:rgba(14,27,44,.08);color:var(--ink-2);
}
.tag--gold{background:rgba(217,180,74,.2);color:#6F5610}
.tag--celadon{background:rgba(95,145,130,.2);color:#2C594C}
.tag--cinnabar{background:rgba(184,57,43,.14);color:var(--cinnabar)}

/* ---------- 图片容器 ---------- */
.media-frame{
  position:relative;display:block;overflow:hidden;
  border-radius:var(--radius-lg);
  background:linear-gradient(135deg,var(--ink-2),var(--ink));
  aspect-ratio:16 / 10;
  isolation:isolate;
}
.media-frame--4x3{aspect-ratio:4 / 3}
.media-frame--1x1{aspect-ratio:1 / 1}
.media-frame--21x9{aspect-ratio:21 / 9}
.media-frame--tall{aspect-ratio:3 / 4}
.media-frame__img{
  display:block;width:100%;height:100%;
  object-fit:cover;
  filter:grayscale(.32) contrast(1.05) brightness(.95);
}
.media-frame__scrim{
  position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(200deg,rgba(217,180,74,.16),rgba(14,27,44,0) 46%,rgba(184,57,43,.3));
  mix-blend-mode:screen;
}
.media-frame__caption{
  position:absolute;left:0;right:0;bottom:0;
  padding:14px 16px;
  font-size:12.5px;line-height:1.6;letter-spacing:.04em;color:rgba(245,241,232,.9);
  background:linear-gradient(0deg,rgba(8,19,32,.86),rgba(8,19,32,0));
}

/* ---------- 首屏基座 ---------- */
[data-hero]{position:relative;isolation:isolate;overflow:hidden;background:var(--ink);color:var(--paper)}
[data-hero] a{color:inherit}

/* ---------- 移动端 ---------- */
@media (max-width:1079px){
  body.nav-open{overflow:hidden}

  .site-header__inner{gap:12px}
  .header-caps{display:none}
  .nav-toggle{display:inline-flex}
  .brand__sub{display:none}

  .site-nav{
    position:fixed;inset:0;z-index:150;
    display:flex;flex-direction:column;align-items:stretch;justify-content:flex-start;
    gap:18px;
    padding:calc(74px + var(--header-pad)) var(--gutter) 52px;
    overflow-y:auto;
    background:
      radial-gradient(120% 78% at 100% 0%,rgba(184,57,43,.3),rgba(14,27,44,0) 62%),
      radial-gradient(90% 66% at 0% 100%,rgba(95,145,130,.2),rgba(14,27,44,0) 58%),
      var(--ink);
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity .24s ease,transform .24s ease,visibility 0s linear .24s;
  }
  .site-header[data-open] .site-nav{
    opacity:1;visibility:visible;transform:none;
    transition:opacity .24s ease,transform .24s ease,visibility 0s linear 0s;
  }

  .site-nav__list{flex-direction:column;align-items:stretch;gap:2px}
  .site-nav__item{display:block}
  .site-nav__link{
    justify-content:flex-start;
    padding:14px 14px;
    font-size:18px;letter-spacing:.08em;
    border-radius:12px;
    border-bottom:1px solid rgba(217,180,74,.16);
  }
  .site-nav__num{font-size:12px;min-width:26px}
  .site-nav__link::after{display:none}
  .site-nav__link:hover{background:rgba(245,241,232,.06)}
  .site-nav__link[aria-current="page"]{
    background:rgba(184,57,43,.2);
    box-shadow:inset 3px 0 0 var(--cinnabar);
    border-bottom-color:rgba(217,180,74,.18);
  }

  .site-nav__actions{display:flex}
  .site-nav__aside{display:block;margin-top:8px;padding-top:20px;border-top:1px solid rgba(217,180,74,.22)}
}

@media (max-width:719px){
  .site-nav__index{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-col--brand{grid-column:1 / -1}
}
@media (max-width:519px){
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:14px}
}

/* ---------- 减弱动效 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    transition-delay:0s !important;
  }
  .site-nav{transform:none !important}
}