/* ===== PG游艺 站点共享样式 /assets/site.css ===== */

/* ---------- 1. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,h6,p,ul,ol,figure,blockquote,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit;text-decoration:none}
img,svg,video{display:block;max-width:100%}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
table{border-collapse:collapse;width:100%}
[id]{scroll-margin-top:1.5rem}

/* ---------- 2. 变量 ---------- */
:root{
  --ink-900:#0A1A2A;
  --ink-800:#102A44;
  --ink-700:#16375A;
  --silver-300:#C8D4DF;
  --silver-500:#8794A3;
  --paper:#F5F8FB;
  --graphite:#0C1116;
  --cyan:#2FD8C6;
  --amber:#FFA23A;
  --green:#4CD07D;
  --red:#E5644E;
  --archive:#E7DFD2;
  --cyan-deep:#0E7A70;
  --green-deep:#1D7A4A;
  --amber-deep:#8F5600;
  --red-deep:#A33A28;
  --neon:linear-gradient(120deg,#123A5E 0%,#2FD8C6 100%);
  --line-light:#DCE4EC;
  --line-dark:rgba(200,212,223,.16);
  --shell-w:1200px;
  --rail-w:56px;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --shadow-card:0 1px 0 rgba(12,17,22,.05),0 14px 30px -22px rgba(10,26,42,.5);
}

/* ---------- 3. 基础排版 ---------- */
body{
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--graphite);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
.tone-dark{background:var(--ink-900);color:var(--silver-300)}
.tone-dark h1,.tone-dark h2,.tone-dark h3,.tone-dark h4{color:#fff}
.tone-dark a{color:var(--silver-300)}
.tone-dark a:hover{color:var(--cyan)}
.h-display{font-size:clamp(30px,4.4vw,52px);line-height:1.14;letter-spacing:-.02em;font-weight:900;color:var(--graphite)}
.h-section{font-size:clamp(21px,2.4vw,30px);line-height:1.3;letter-spacing:-.01em;font-weight:700;color:var(--graphite)}
.h-sub{font-size:17px;line-height:1.5;font-weight:700;color:var(--graphite)}
.tone-dark .h-display,.tone-dark .h-section,.tone-dark .h-sub{color:#fff}
.mono{font-family:var(--font-mono);letter-spacing:.02em}
.num{font-family:var(--font-mono);letter-spacing:.02em;font-size:.94em;white-space:nowrap}
.eyebrow{display:inline-flex;align-items:center;gap:.55rem;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--cyan-deep)}
.eyebrow::before{content:"";width:22px;height:1px;background:currentColor}
.tone-dark .eyebrow{color:var(--cyan)}
.label{display:inline-block;font-size:12px;font-weight:600;letter-spacing:.06em;color:var(--silver-500)}
.prose{max-width:68ch}
.prose p{margin-bottom:1em}
.prose p:last-child{margin-bottom:0}
.rule{height:1px;border:0;background:var(--line-light);margin:1.6rem 0}
.rule--neon{height:1px;border:0;background:linear-gradient(90deg,transparent,rgba(47,216,198,.75),transparent);margin:2rem 0}

/* ---------- 4. 焦点与跳转 ---------- */
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:2px}
.skip-link{
  position:absolute;left:1rem;top:-4rem;z-index:300;
  padding:.6rem 1rem;background:var(--cyan);color:#062026;
  font-size:14px;font-weight:700;border-radius:2px;
  transition:top .2s ease;
}
.skip-link:focus{top:.8rem}

/* ---------- 5. 布局工具 ---------- */
.shell{width:min(100% - 2.5rem,var(--shell-w));margin-inline:auto}
.section{padding:3.6rem 0}
.section--tight{padding:2rem 0}
.section--dark{background:var(--ink-900);color:var(--silver-300)}
.section--dark .h-section,.section--dark .h-display{color:#fff}
.section--paper{background:var(--archive);color:var(--graphite)}
.section__head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:.8rem;margin-bottom:1.7rem;
}
.grid{display:grid;gap:1.25rem}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--4{grid-template-columns:repeat(4,minmax(0,1fr))}
.split-7-5{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:1.5rem}
.stack{display:grid;gap:1rem}

/* ---------- 6. 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.4rem;
  padding:.58rem 1rem;border:1px solid transparent;border-radius:2px;
  font-size:13.5px;font-weight:600;letter-spacing:.01em;white-space:nowrap;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
.btn--primary{background:var(--cyan);border-color:var(--cyan);color:#062026}
.btn--primary:hover{background:#43e6d5}
.btn--ghost{background:transparent;border-color:rgba(200,212,223,.3);color:var(--silver-300)}
.btn--ghost:hover{border-color:var(--cyan);color:#fff}
.btn--quiet{background:var(--ink-800);border-color:var(--line-dark);color:var(--silver-300)}
.btn--quiet:hover{border-color:var(--cyan);color:#fff}

/* ---------- 7. 头部 ---------- */
.site-header{position:relative;z-index:60;background:var(--ink-900)}
.masthead{background:linear-gradient(180deg,#102A44 0%,#0d2237 100%);border-bottom:1px solid var(--line-dark)}
.masthead__inner{display:flex;align-items:center;justify-content:space-between;gap:1.5rem;padding:.72rem 0}
.brand{display:flex;align-items:center;gap:.7rem;min-width:0}
.brand__mark{
  display:grid;place-items:center;flex:none;width:38px;height:38px;
  background:var(--neon);border:1px solid rgba(47,216,198,.55);border-radius:2px;
  font-family:var(--font-mono);font-size:15px;font-weight:700;color:#04191c;letter-spacing:.04em;
}
.brand__text{display:flex;flex-direction:column;min-width:0}
.brand__name{color:#fff;font-size:16px;font-weight:700;line-height:1.3;letter-spacing:.02em}
.brand__line{color:var(--silver-500);font-size:12.5px;line-height:1.4}
.masthead__meta{display:flex;align-items:center;gap:.6rem;color:var(--silver-500);font-size:12.5px;white-space:nowrap}
.masthead__sep{color:rgba(135,148,163,.5)}

.navbar{background:var(--ink-900);border-bottom:1px solid rgba(47,216,198,.22)}
.navbar__inner{display:flex;align-items:center;gap:1rem;flex-wrap:wrap;padding:.3rem 0}
.nav{flex:1 1 auto;min-width:0}
.nav__list{display:flex;align-items:stretch;flex-wrap:wrap;gap:.15rem}
.nav__item{display:flex}
.nav__link{
  position:relative;display:block;padding:.85rem .95rem;
  color:var(--silver-300);font-size:14.5px;font-weight:500;letter-spacing:.01em;
  transition:color .18s ease,background-color .18s ease;
}
.nav__link::after{
  content:"";position:absolute;left:.95rem;right:.95rem;bottom:.42rem;height:2px;
  background:var(--cyan);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav__link:hover{color:#fff}
.nav__link:hover::after{transform:scaleX(1)}
.nav__link[aria-current="page"]{color:#fff;font-weight:700}
.nav__link[aria-current="page"]::after{transform:scaleX(1)}
.navbar__actions{display:flex;align-items:center;gap:.5rem;margin-left:auto}

.nav-toggle{
  display:none;align-items:center;gap:.55rem;
  padding:.6rem .85rem;border:1px solid rgba(200,212,223,.3);border-radius:2px;
  color:var(--silver-300);font-size:13.5px;font-weight:600;
}
.nav-toggle__bars{position:relative;display:block;width:16px;height:2px;background:currentColor;transition:background-color .2s ease}
.nav-toggle__bars::before,.nav-toggle__bars::after{
  content:"";position:absolute;left:0;width:16px;height:2px;background:currentColor;
  transition:transform .2s ease,top .2s ease;
}
.nav-toggle__bars::before{top:-5px}
.nav-toggle__bars::after{top:5px}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars{background:transparent}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before{top:0;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{top:0;transform:rotate(-45deg)}

/* ---------- 8. 页脚 ---------- */
.site-footer{
  margin-top:4rem;background:var(--ink-900);color:var(--silver-500);
  border-top:1px solid rgba(47,216,198,.2);
}
.footer__inner{display:grid;grid-template-columns:1.5fr repeat(4,1fr);gap:2rem;padding:3rem 0 2.2rem}
.footer__logo{color:#fff;font-size:20px;font-weight:800;letter-spacing:.02em}
.footer__desc{margin-top:.6rem;font-size:13.5px;line-height:1.75;color:var(--silver-500);max-width:30ch}
.footer__archive{margin-top:.9rem;font-size:12px;color:rgba(135,148,163,.8)}
.footer__col-title{font-size:12.5px;font-weight:700;letter-spacing:.14em;color:var(--silver-300)}
.footer__links{margin-top:.85rem;display:grid;gap:.5rem}
.footer__links a{font-size:13.5px;color:var(--silver-500);transition:color .18s ease}
.footer__links a:hover{color:var(--cyan)}
.footer__base{border-top:1px solid var(--line-dark);background:#08131f}
.footer__base-inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:.6rem 1.2rem;padding:1rem 0 1.4rem;
}
.footer__legal{font-size:12.5px;line-height:1.75;color:var(--silver-500);max-width:88ch}
.footer__copy{font-size:12.5px;color:var(--silver-500)}

/* ---------- 9. 组件 ---------- */
.card{
  position:relative;padding:1.25rem 1.35rem;background:#fff;
  border:1px solid var(--line-light);border-radius:2px;box-shadow:var(--shadow-card);
}
.card--paper{background:var(--archive);border-color:#D6CCBA}
.card--navy{background:var(--ink-800);border-color:rgba(200,212,223,.14);color:var(--silver-300);box-shadow:none}
.card__title{font-size:19px;line-height:1.4;font-weight:700;letter-spacing:-.01em;color:var(--graphite)}
.card--navy .card__title{color:#fff}
.card__meta{margin-top:.5rem;font-size:13px;color:var(--silver-500)}

.chip{
  display:inline-flex;align-items:center;gap:.35rem;padding:.24rem .6rem;
  border:1px solid var(--line-light);border-radius:2px;background:#fff;
  font-size:12.5px;color:var(--silver-500);
}
.status{
  display:inline-flex;align-items:center;gap:.35em;padding:.14rem .5rem;
  border:1px solid currentColor;border-radius:2px;
  font-size:12px;font-weight:600;line-height:1.5;white-space:nowrap;
}
.status--ok{color:var(--green-deep);background:rgba(76,208,125,.12);border-color:rgba(76,208,125,.5)}
.status--warn{color:var(--amber-deep);background:rgba(255,162,58,.14);border-color:rgba(255,162,58,.5)}
.status--bad{color:var(--red-deep);background:rgba(229,100,78,.12);border-color:rgba(229,100,78,.5)}
.status--info{color:var(--cyan-deep);background:rgba(47,216,198,.12);border-color:rgba(47,216,198,.5)}
.tone-dark .status--ok,.card--navy .status--ok{color:var(--green)}
.tone-dark .status--warn,.card--navy .status--warn{color:var(--amber)}
.tone-dark .status--bad,.card--navy .status--bad{color:var(--red)}
.tone-dark .status--info,.card--navy .status--info{color:var(--cyan)}

.table-wrap{overflow-x:auto;background:#fff;border:1px solid var(--line-light);border-radius:2px}
.data-table{width:100%;min-width:520px;font-size:13.5px;line-height:1.6}
.data-table caption{padding:.7rem .85rem;text-align:left;font-size:12.5px;color:var(--silver-500);border-bottom:1px solid var(--line-light)}
.data-table th{
  padding:.7rem .85rem;background:var(--ink-800);color:var(--silver-300);
  font-size:12.5px;font-weight:600;text-align:left;letter-spacing:.04em;white-space:nowrap;
}
.data-table td{padding:.62rem .85rem;border-top:1px solid var(--line-light);color:var(--graphite);vertical-align:top}
.data-table tbody tr:nth-child(even){background:#FAFCFE}
.data-table .num{font-family:var(--font-mono);font-size:13px}

.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:.4rem;font-size:12.5px;color:var(--silver-500)}
.crumbs a{color:var(--silver-500);transition:color .18s ease}
.crumbs a:hover{color:var(--cyan-deep)}
.crumbs__sep{color:rgba(135,148,163,.6)}
.crumbs [aria-current="page"]{color:var(--graphite)}
.tone-dark .crumbs,.tone-dark .crumbs a{color:var(--silver-300)}
.tone-dark .crumbs [aria-current="page"]{color:#fff}

/* 图片容器（页面阶段放置图片占位） */
.media{position:relative;display:block;margin:0}
.media__frame{
  position:relative;overflow:hidden;aspect-ratio:16/10;
  background:linear-gradient(140deg,#123A5E 0%,#0A1A2A 100%);
  border:1px solid var(--line-light);border-radius:2px;
}
.media__frame > img,.media__frame > picture > img{width:100%;height:100%;object-fit:cover}
.media--wide .media__frame{aspect-ratio:21/9}
.media--macro .media__frame{aspect-ratio:4/3}
.media--flat .media__frame{aspect-ratio:1/1}
.media__tag{
  position:absolute;left:0;top:0;z-index:2;padding:.3rem .6rem;
  background:var(--ink-900);color:var(--cyan);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;
  border-right:1px solid rgba(47,216,198,.4);border-bottom:1px solid rgba(47,216,198,.4);
}
.media__caption{margin-top:.55rem;font-family:var(--font-mono);font-size:12.5px;line-height:1.6;color:var(--silver-500)}
.tone-dark .media__caption{color:var(--silver-300)}

/* 悬浮索引条 */
.index-rail{display:none}
@media (min-width:1180px){
  body.has-index-rail{padding-left:var(--rail-w)}
  body.has-index-rail .index-rail{
    position:fixed;inset:0 auto 0 0;z-index:50;
    display:flex;flex-direction:column;align-items:center;gap:.6rem;
    width:var(--rail-w);padding:6.5rem .5rem 1.5rem;
    background:linear-gradient(180deg,#0d2237 0%,#0A1A2A 100%);
    border-right:1px solid var(--line-dark);overflow:hidden;
  }
  .index-rail::after{
    content:"";position:absolute;left:50%;top:5.6rem;bottom:1.5rem;width:1px;
    background:linear-gradient(180deg,rgba(47,216,198,.45),rgba(200,212,223,.08));
  }
  .index-rail__list{position:relative;z-index:1;display:grid;gap:.35rem;justify-items:center}
  .index-rail__link{
    display:grid;place-items:center;width:32px;height:32px;
    border:1px solid rgba(200,212,223,.2);border-radius:2px;background:var(--ink-900);
    font-family:var(--font-mono);font-size:10.5px;letter-spacing:.04em;color:var(--silver-500);
    transition:color .18s ease,border-color .18s ease,background-color .18s ease;
  }
  .index-rail__link:hover{color:#fff;border-color:var(--cyan)}
  .index-rail__link[aria-current="true"]{background:var(--cyan);border-color:var(--cyan);color:#062026}
  .index-rail__title{
    position:relative;z-index:1;margin-top:auto;
    font-family:var(--font-mono);font-size:10.5px;letter-spacing:.16em;
    color:rgba(135,148,163,.7);writing-mode:vertical-rl;
  }
}

/* ---------- 10. 动效 ---------- */
[data-reveal]{opacity:0;transform:translateY(12px);transition:opacity .26s ease,transform .26s ease}
[data-reveal].is-in{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  [data-reveal]{opacity:1;transform:none;transition:opacity .2s linear}
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
}

/* ---------- 11. 响应式 ---------- */
@media (max-width:1080px){
  .footer__inner{grid-template-columns:1.4fr 1fr 1fr;row-gap:1.8rem}
}
@media (max-width:900px){
  .shell{width:min(100% - 2rem,var(--shell-w))}
  .navbar__inner{flex-wrap:wrap;padding:.5rem 0 .35rem}
  .nav-toggle{display:inline-flex;order:1}
  .navbar__actions{order:2;margin-left:auto}
  .nav{order:3;display:none;width:100%;flex-basis:100%;margin-top:.4rem;border-top:1px solid var(--line-dark)}
  .nav[data-open="true"]{display:block}
  .nav__list{flex-direction:column}
  .nav__item{display:block}
  .nav__link{padding:.72rem .35rem;border-bottom:1px dashed rgba(200,212,223,.14)}
  .nav__link::after{display:none}
  .nav__link[aria-current="page"]{background:rgba(47,216,198,.1);border-radius:2px}
  .split-7-5{grid-template-columns:1fr}
  .grid--3,.grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .section{padding:2.8rem 0}
}
@media (max-width:720px){
  .navbar__actions .btn--ghost{display:none}
  .masthead__meta span:not(.mono){display:none}
  .masthead__sep{display:none}
}
@media (max-width:640px){
  .grid--2,.grid--3,.grid--4{grid-template-columns:1fr}
  .footer__inner{grid-template-columns:1fr 1fr;gap:1.6rem}
  .footer__brand{grid-column:1 / -1}
  .footer__base-inner{flex-direction:column;align-items:flex-start}
  .h-display{letter-spacing:-.01em}
}