/* ==========================================================================
   老虎游戏机游 — 共享站点套件 /assets/site.css
   复古刊物底 × 街机夜场霓虹 × 卡带插槽
   ========================================================================== */

/* ---------- 1. reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:118px}
body,h1,h2,h3,h4,h5,p,ul,ol,li,figure,figcaption,blockquote,dl,dt,dd{margin:0;padding:0}
ul,ol{list-style:none}
img,svg,video{display:block;max-width:100%;height:auto}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse;width:100%}

/* ---------- 2. tokens ---------- */
:root{
  --paper:#FBF3E4;
  --ink:#16120F;
  --ink-2:#2A1F17;
  --orange:#F2621B;
  --amber:#FFB020;
  --cyan:#2FD3C6;
  --steel:#4A6072;
  --mist:#7C93A6;
  --red:#C4322A;
  --sand:#E4D9C6;
  --white:#FFFFFF;

  --font-serif:"Source Han Serif SC","Noto Serif SC","Songti SC","STSong",SimSun,Georgia,serif;
  --font-sans:"HarmonyOS Sans SC","Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"JetBrains Mono","SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;

  --radius-s:10px;
  --radius-m:16px;
  --radius-l:24px;
  --radius-xl:34px;
  --pill:999px;

  --maxw:1240px;
  --gap-s:.5rem;
  --gap-m:1rem;
  --gap-l:1.75rem;
  --gap-xl:2.75rem;

  --shadow-card:4px 4px 0 0 var(--ink-2);
  --shadow-deep:7px 7px 0 0 var(--ink-2);
  --line-dashed:2px dashed var(--sand);
}

/* ---------- 3. 中文排版与页面底色 ---------- */
body{
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background-color:var(--paper);
  background-image:
    radial-gradient(circle at 10% 4%, rgba(255,176,32,.16), transparent 44%),
    radial-gradient(circle at 92% 0%, rgba(47,211,198,.13), transparent 38%);
  background-repeat:no-repeat;
  min-height:100vh;
}
@media (min-width:768px){body{font-size:17px}}

h1,h2,h3,h4{font-family:var(--font-serif);font-weight:800;line-height:1.26;letter-spacing:-.01em;color:var(--ink-2)}
h1{font-size:clamp(2rem,5.2vw,2.75rem)}
h2{font-size:clamp(1.5rem,3.6vw,2.1rem)}
h3{font-size:clamp(1.2rem,2.6vw,1.6rem)}
h4{font-size:1.1rem}
p{max-width:68ch}
::selection{background:var(--amber);color:var(--ink-2)}

:focus-visible{outline:3px solid var(--cyan);outline-offset:3px;border-radius:4px}

/* ---------- 4. 工具类 ---------- */
.tpg-mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:-.01em;font-weight:700}
.tpg-sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.tpg-reveal{opacity:0;transform:translateY(14px);transition:opacity .5s ease,transform .5s ease}
.tpg-reveal.is-visible{opacity:1;transform:none}
.tpg-paw{display:inline-block;width:13px;height:13px;border-radius:50%;background:var(--sand);box-shadow:0 0 0 2px var(--ink-2);transition:background-color .3s ease,transform .3s ease}
.tpg-paw.is-visible{background:var(--orange);transform:scale(1.12)}

/* ---------- 5. 跳至主要内容 ---------- */
.tpg-skip{
  position:absolute;left:1rem;top:.5rem;z-index:300;
  transform:translateY(-220%);
  background:var(--ink-2);color:var(--paper);
  padding:.55rem 1.05rem;border-radius:var(--pill);
  font-weight:800;font-size:.9rem;
  transition:transform .18s ease;
}
.tpg-skip:focus{transform:translateY(0)}

/* ---------- 6. 阅读进度条 ---------- */
.tpg-progress{
  position:relative;height:6px;overflow:hidden;
  background-color:var(--sand);
  background-image:repeating-linear-gradient(90deg,rgba(42,31,23,.24) 0 2px,transparent 2px 18px);
  border-bottom:1px solid var(--ink-2);
}
.tpg-progress__bar{
  position:absolute;top:0;bottom:0;left:0;width:0;
  background-image:linear-gradient(90deg,var(--orange),var(--amber));
  border-right:3px solid var(--ink-2);
}

/* ---------- 7. 页头 ---------- */
.tpg-header{
  position:sticky;top:0;z-index:100;
  background:var(--paper);
  border-bottom:2px solid var(--ink-2);
  transition:box-shadow .2s ease;
}
.tpg-header.is-scrolled{box-shadow:0 9px 0 -5px rgba(42,31,23,.2)}
.tpg-header__inner{
  display:flex;flex-wrap:wrap;align-items:center;
  gap:.7rem 1rem;
  width:100%;max-width:var(--maxw);margin-inline:auto;
  padding:.7rem 1rem .85rem;
}
@media (min-width:768px){.tpg-header__inner{padding:.85rem 1.5rem 1rem}}

/* 品牌铭牌 */
.tpg-brand{display:flex;flex-direction:column;gap:.45rem;flex:1 1 auto;min-width:0}
.tpg-brand__link{display:inline-flex;align-items:center;gap:.6rem;min-width:0}
.tpg-brand__mark{
  flex:0 0 auto;width:42px;height:42px;border-radius:var(--radius-s);
  border:2px solid var(--ink-2);
  background-image:repeating-linear-gradient(118deg,var(--orange) 0 6px,var(--ink-2) 6px 9px,var(--amber) 9px 16px);
  display:grid;place-items:center;
}
.tpg-brand__slot{display:block;width:18px;height:3px;border-radius:2px;background:var(--ink)}
.tpg-brand__text{display:flex;flex-direction:column;min-width:0}
.tpg-brand__name{font-family:var(--font-serif);font-weight:800;font-size:1.15rem;line-height:1.2;letter-spacing:.01em;color:var(--ink-2)}
.tpg-brand__tagline{font-size:.74rem;color:var(--steel);letter-spacing:.02em;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* 状态胶囊 */
.tpg-status{display:flex;flex-wrap:wrap;gap:.4rem}
.tpg-capsule{
  display:inline-flex;align-items:center;gap:.4rem;
  padding:.2rem .62rem;border-radius:var(--pill);
  border:1.5px solid var(--ink-2);background:var(--sand);
  font-size:.72rem;font-weight:700;line-height:1.6;color:var(--ink-2);
}
.tpg-capsule__dot{width:7px;height:7px;border-radius:50%;background:var(--red);flex:0 0 auto}
.tpg-capsule__label{opacity:.85}
.tpg-capsule__value{font-family:var(--font-mono);font-weight:700}
.tpg-capsule--live{background:var(--amber);border-color:var(--ink-2);color:var(--ink-2)}
.tpg-capsule--next{background:transparent;border:1.5px dashed var(--mist);color:var(--steel)}

/* 导航开关 */
.tpg-nav-toggle{
  flex:0 0 auto;
  display:inline-flex;align-items:center;gap:.5rem;
  padding:.45rem .85rem;border-radius:var(--pill);
  border:2px solid var(--ink-2);background:var(--white);
  font-size:.82rem;font-weight:800;color:var(--ink-2);
}
.tpg-nav-toggle__bars{display:grid;gap:4px;width:18px}
.tpg-nav-toggle__bars span{display:block;height:2px;border-radius:2px;background:var(--ink);transition:transform .2s ease,opacity .2s ease}
.tpg-nav-toggle[aria-expanded="true"] .tpg-nav-toggle__bars span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.tpg-nav-toggle[aria-expanded="true"] .tpg-nav-toggle__bars span:nth-child(2){opacity:0}
.tpg-nav-toggle[aria-expanded="true"] .tpg-nav-toggle__bars span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.tpg-nav-toggle__text{letter-spacing:.08em}

/* 导航 */
.tpg-nav{
  flex:1 0 100%;display:none;flex-direction:column;gap:.6rem;
  padding-top:.7rem;border-top:2px dashed var(--sand);
}
.tpg-nav[data-open]{display:flex;animation:tpg-drop .22s ease-out}
@keyframes tpg-drop{from{opacity:0;transform:translateY(-7px)}to{opacity:1;transform:none}}
.tpg-nav__list{display:flex;flex-direction:column;gap:.12rem}
.tpg-nav__item{display:block;width:100%}
.tpg-nav__link{
  display:block;padding:.6rem .8rem;border-radius:var(--radius-s);
  border:2px solid transparent;
  font-size:.95rem;font-weight:700;color:var(--ink-2);
  transition:background-color .16s ease,color .16s ease;
}
.tpg-nav__link:hover{background:var(--sand)}
.tpg-nav__link[aria-current="page"]{
  background:var(--ink-2);color:var(--paper);border-color:var(--ink-2);
  box-shadow:inset 0 -3px 0 var(--orange);
}
.tpg-nav__home{
  align-self:flex-start;
  display:inline-flex;align-items:center;
  padding:.55rem 1.05rem;border-radius:var(--pill);
  background:var(--orange);color:var(--white);
  border:2px solid var(--ink-2);box-shadow:3px 3px 0 var(--ink-2);
  font-weight:800;font-size:.88rem;
  transition:background-color .18s ease,transform .18s ease;
}
.tpg-nav__home:hover{background:var(--amber);color:var(--ink-2);transform:translate(-1px,-1px)}

@media (min-width:1000px){
  .tpg-header__inner{flex-wrap:nowrap;align-items:center;gap:1.5rem}
  .tpg-brand{flex-direction:row;align-items:center;gap:1.1rem;flex:1 1 auto}
  .tpg-status{flex-wrap:nowrap}
  .tpg-nav-toggle{display:none}
  .tpg-nav{
    flex:0 1 auto;display:flex;flex-direction:row;align-items:center;gap:.6rem;
    padding-top:0;border-top:0;
  }
  .tpg-nav__list{flex-direction:row;gap:.1rem}
  .tpg-nav__item{width:auto}
  .tpg-nav__link{padding:.5rem .78rem;font-size:.92rem;white-space:nowrap}
  .tpg-nav__home{align-self:center;white-space:nowrap}
}

/* ---------- 8. 页面骨架 ---------- */
.tpg-container{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:1rem}
@media (min-width:768px){.tpg-container{padding-inline:1.5rem}}
.tpg-main{display:block;min-height:60vh;padding-bottom:1rem}
#main-content{scroll-margin-top:130px;display:block}
.tpg-section{padding-block:clamp(1.8rem,5vw,2.9rem);border-bottom:var(--line-dashed)}
.tpg-section:last-child{border-bottom:0}
.tpg-lead{
  font-size:1.03rem;color:var(--ink-2);
  border-left:6px solid var(--amber);
  padding:.15rem 0 .15rem .9rem;
  margin-block:.75rem;
}

/* 章节序号条（滚动高亮） */
.tpg-chapter{display:flex;align-items:center;gap:.7rem;margin-bottom:1.15rem;flex-wrap:wrap}
.tpg-chapter__no{
  font-family:var(--font-mono);font-weight:700;font-size:.78rem;letter-spacing:.1em;
  padding:.16rem .5rem;border:2px solid var(--ink-2);border-radius:8px;
  color:var(--ink-2);background:transparent;
  transition:background-color .25s ease,color .25s ease;
}
.tpg-chapter__title{font-family:var(--font-serif);font-weight:800;font-size:clamp(1.25rem,3vw,1.6rem);color:var(--ink-2)}
.tpg-chapter__rule{
  flex:1 1 60px;height:3px;border-radius:2px;
  background-image:repeating-linear-gradient(90deg,var(--sand) 0 9px,transparent 9px 16px);
}
.tpg-chapter.is-current .tpg-chapter__no{background:var(--orange);color:var(--white)}
.tpg-chapter.is-current .tpg-chapter__rule{background-image:repeating-linear-gradient(90deg,var(--orange) 0 9px,transparent 9px 16px)}

/* ---------- 9. 网格 ---------- */
.tpg-grid{display:grid;gap:1rem}
@media (min-width:640px){.tpg-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1000px){.tpg-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:1.25rem}}
.tpg-grid--aside{grid-template-columns:1fr}
@media (min-width:1000px){
  .tpg-grid--aside{grid-template-columns:minmax(0,8fr) minmax(0,4fr);align-items:start;gap:1.5rem}
}

/* ---------- 10. 卡片 / 旁注 / 面板 / 标签 ---------- */
.tpg-card{
  position:relative;background:var(--white);
  border:2px solid var(--ink-2);border-radius:var(--radius-l);
  padding:1.1rem 1.15rem 1.25rem;
  box-shadow:var(--shadow-card);
  transition:box-shadow .18s ease,background-color .18s ease;
}
.tpg-card:hover{box-shadow:var(--shadow-deep)}
.tpg-card--offset{transform:translate(8px,-10px)}
@media (min-width:1000px){.tpg-card--offset{transform:translate(18px,-14px)}}
.tpg-card__title{font-family:var(--font-serif);font-size:1.14rem;color:var(--ink-2);margin-bottom:.35rem}
.tpg-card__text{font-size:.94rem;color:var(--ink-2)}

.tpg-note{
  background:var(--sand);
  border-left:6px solid var(--orange);
  border-radius:0 var(--radius-m) var(--radius-m) 0;
  padding:.85rem 1rem;font-size:.9rem;color:var(--ink-2);
}
.tpg-panel{
  background:var(--ink);color:var(--paper);
  border:2px solid var(--ink-2);border-radius:var(--radius-l);
  padding:1.15rem 1.25rem;
}
.tpg-panel__title{
  font-family:var(--font-mono);font-size:.76rem;font-weight:700;
  letter-spacing:.18em;color:var(--amber);margin-bottom:.5rem;
}
.tpg-tag{
  display:inline-flex;align-items:center;gap:.35rem;
  padding:.16rem .6rem;border-radius:var(--pill);
  border:1.5px solid var(--ink-2);background:var(--sand);color:var(--ink-2);
  font-size:.72rem;font-weight:700;line-height:1.7;
}
.tpg-tag--alert{background:var(--red);color:var(--white)}
.tpg-tag--cool{background:var(--steel);border-color:var(--steel);color:var(--white)}

/* ---------- 11. 按钮 ---------- */
.tpg-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.45rem;
  padding:.65rem 1.15rem;border-radius:var(--pill);
  border:2px solid var(--ink-2);background:var(--white);color:var(--ink-2);
  font-family:var(--font-sans);font-weight:800;font-size:.92rem;line-height:1.25;
  transition:box-shadow .18s ease,background-color .18s ease,color .18s ease;
}
.tpg-btn:hover{box-shadow:var(--shadow-card)}
.tpg-btn--solid{background:var(--orange);color:var(--white)}
.tpg-btn--solid:hover{background:var(--amber);color:var(--ink-2)}
.tpg-btn--ghost{background:transparent;color:inherit;border-color:currentColor}
.tpg-btn--ghost:hover{background:var(--sand);color:var(--ink-2);border-color:var(--ink-2)}
.tpg-btn--sm{padding:.4rem .85rem;font-size:.8rem}
.tpg-btn--block{width:100%}

/* ---------- 12. 面包屑 ---------- */
.tpg-crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:.45rem;font-size:.82rem;color:var(--steel);padding-block:.95rem}
.tpg-crumbs__link{color:var(--steel);border-bottom:2px solid var(--sand);padding-bottom:1px;transition:color .16s ease,border-color .16s ease}
.tpg-crumbs__link:hover{color:var(--orange);border-color:var(--orange)}
.tpg-crumbs__sep{color:var(--mist)}
.tpg-crumbs__current{color:var(--ink-2);font-weight:800}

/* ---------- 13. 页内锚点导航（章节常亮） ---------- */
.tpg-spy{display:flex;flex-wrap:wrap;gap:.4rem;margin-block:1rem 1.35rem}
.tpg-spy__link{
  font-size:.8rem;font-weight:700;
  padding:.3rem .72rem;border-radius:var(--pill);
  border:2px solid var(--sand);background:var(--white);color:var(--steel);
  transition:border-color .16s ease,color .16s ease,background-color .16s ease;
}
.tpg-spy__link:hover{border-color:var(--orange);color:var(--orange)}
.tpg-spy__link[aria-current]{background:var(--ink-2);border-color:var(--ink-2);color:var(--paper)}

/* ---------- 14. 图片容器基础规则 ---------- */
.tpg-figure{
  margin:0;border:2px solid var(--ink-2);border-radius:var(--radius-l);
  background:var(--white);overflow:hidden;box-shadow:var(--shadow-card);
}
.tpg-figure__media{
  position:relative;aspect-ratio:16/9;overflow:hidden;
  background-color:var(--sand);
  background-image:
    repeating-linear-gradient(135deg,rgba(42,31,23,.1) 0 10px,transparent 10px 22px),
    radial-gradient(circle at 78% 18%, rgba(242,98,27,.28), transparent 55%);
}
.tpg-figure__media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.tpg-figure__caption{
  padding:.7rem .95rem;font-size:.85rem;color:var(--steel);
  background:var(--paper);border-top:2px dashed var(--sand);
}
.tpg-figure--wide .tpg-figure__media{aspect-ratio:21/9}
.tpg-figure--inset{border-style:dashed;border-radius:var(--radius-xl)}
.tpg-figure--inset .tpg-figure__media{aspect-ratio:4/3}
@media (min-width:1000px){
  .tpg-figure--inset .tpg-figure__media{aspect-ratio:5/4}
}

/* ---------- 15. 页脚 ---------- */
.tpg-footer{
  position:relative;overflow:hidden;
  background:var(--ink);color:var(--paper);
  margin-top:clamp(2.5rem,7vw,4.5rem);
}
.tpg-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:10px;
  background-image:repeating-linear-gradient(115deg,var(--orange) 0 12px,var(--ink-2) 12px 17px,var(--amber) 17px 29px);
}
.tpg-footer__inner{
  width:100%;max-width:var(--maxw);margin-inline:auto;
  padding:3.4rem 1rem 1.5rem;
}
@media (min-width:768px){.tpg-footer__inner{padding:3.8rem 1.5rem 1.75rem}}
.tpg-footer__grid{display:grid;gap:2rem;grid-template-columns:1fr}
@media (min-width:640px){.tpg-footer__grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1000px){
  .tpg-footer__grid{grid-template-columns:1.35fr 1fr 1.3fr 1fr;gap:2.5rem}
}
.tpg-footer__col{min-width:0}
.tpg-footer__col--brand{max-width:38ch}
.tpg-footer__brand{
  font-family:var(--font-serif);font-weight:800;font-size:1.35rem;
  color:var(--paper);line-height:1.3;
}
.tpg-footer__slogan{margin-top:.35rem;font-size:.9rem;color:var(--amber);font-weight:700}
.tpg-footer__meta{margin-top:.7rem;font-size:.82rem;line-height:1.7;color:var(--mist)}
.tpg-footer__title{
  font-family:var(--font-mono);font-size:.76rem;font-weight:700;
  letter-spacing:.2em;color:var(--amber);
  padding-bottom:.5rem;margin-bottom:.75rem;
  border-bottom:2px dashed rgba(251,243,228,.22);
}
.tpg-footer__list{display:flex;flex-direction:column;gap:.15rem}
.tpg-footer__list-item{margin-top:.55rem}
.tpg-footer__link{
  display:inline-block;padding:.28rem 0;font-size:.9rem;
  color:rgba(251,243,228,.86);
  border-bottom:2px solid transparent;
  transition:color .16s ease,border-color .16s ease;
}
.tpg-footer__link:hover{color:var(--cyan);border-color:var(--cyan)}
.tpg-footer__contact{display:flex;flex-direction:column;gap:.7rem}
.tpg-footer__contact li{display:flex;flex-direction:column;gap:.1rem}
.tpg-footer__k{font-size:.68rem;letter-spacing:.16em;color:var(--mist)}
.tpg-footer__v{font-size:.88rem;color:var(--paper);word-break:break-word}
.tpg-footer__text{margin-top:.9rem;font-size:.8rem;line-height:1.7;color:var(--mist);max-width:40ch}
.tpg-footer__bottom{
  margin-top:2.5rem;padding-top:1.25rem;
  border-top:1.5px dashed rgba(251,243,228,.25);
  display:flex;flex-direction:column;align-items:center;gap:.5rem;
  text-align:center;font-size:.78rem;color:var(--mist);
}
@media (min-width:768px){
  .tpg-footer__bottom{flex-direction:row;justify-content:space-between;text-align:left}
}
.tpg-footer__copy{max-width:none}
.tpg-footer__icp{max-width:none;font-family:var(--font-mono);color:rgba(251,243,228,.72)}

/* ---------- 16. 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;
  }
  .tpg-reveal{opacity:1;transform:none}
  .tpg-paw{transform:none}
}