/* ==========================================================================
   黄金城娱乐馆 · 共享站点样式 /assets/site.css
   面具之下：曜石黑底 · 暗金结构 · 霓虹紫与电光蓝仅作状态
   ========================================================================== */

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:calc(76px + 20px)}
body,h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote,dl,dd,hr{margin:0;padding:0}
ul,ol{list-style:none}
img,svg,video{display:block;max-width:100%}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse}
html.gd-no-scroll,html.gd-no-scroll body{overflow:hidden}

/* ---------- 变量 ---------- */
:root{
  --gd-obsidian:#050507;
  --gd-brown:#1B1408;
  --gd-gold:#C9A227;
  --gd-gold-hi:#F5D36B;
  --gd-neon:#7C4DFF;
  --gd-electric:#00D1FF;
  --gd-cream:#F4E9D8;
  --gd-haze:#9A96A8;
  --gd-panel:#0E0E13;

  --gd-line:rgba(201,162,39,.30);
  --gd-line-soft:rgba(244,233,216,.10);

  --gd-font-display:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",Georgia,"Times New Roman",serif;
  --gd-font-body:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Inter,system-ui,-apple-system,sans-serif;
  --gd-font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --gd-shell:1280px;
  --gd-gutter:clamp(20px,4vw,56px);
  --gd-header-h:76px;

  --gd-radius-lg:28px;
  --gd-radius-md:18px;
  --gd-radius-pill:999px;

  --gd-ease:cubic-bezier(.22,.61,.36,1);
  --gd-shadow-card:0 26px 60px -34px rgba(0,0,0,.9);
  --gd-shadow-gold:0 0 0 1px rgba(201,162,39,.34),0 22px 54px -28px rgba(201,162,39,.6);
}

/* ---------- 基础 ---------- */
body{
  background:var(--gd-obsidian);
  color:var(--gd-cream);
  font-family:var(--gd-font-body);
  font-size:17px;
  line-height:1.75;
  letter-spacing:.01em;
  min-height:100vh;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(58vw 46vw at 84% -8%,rgba(124,77,255,.17),transparent 62%),
    radial-gradient(46vw 40vw at 2% 6%,rgba(201,162,39,.13),transparent 64%);
}
main{position:relative;z-index:1;display:block}
:focus-visible{outline:2px solid var(--gd-electric);outline-offset:3px;border-radius:6px}

/* ---------- 跳转链接 ---------- */
.gd-skip{
  position:fixed;left:18px;top:-90px;z-index:200;
  padding:11px 20px;border-radius:var(--gd-radius-pill);
  background:linear-gradient(135deg,var(--gd-gold-hi),var(--gd-gold));
  color:#140E02;font-weight:700;font-size:14px;letter-spacing:.06em;
  box-shadow:0 18px 40px -20px rgba(0,0,0,.9);
  transition:top .24s var(--gd-ease);
}
.gd-skip:focus{top:16px}

/* ---------- 头部 ---------- */
.gd-header{
  position:fixed;top:0;left:0;right:0;z-index:90;
  color:var(--gd-cream);
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .35s var(--gd-ease),border-color .35s var(--gd-ease),backdrop-filter .35s var(--gd-ease);
}
.gd-header::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(5,5,7,.9),rgba(5,5,7,.42) 55%,rgba(5,5,7,0));
  transition:opacity .35s var(--gd-ease);
}
.gd-header[data-scrolled],
.gd-header[data-nav-open]{
  background:rgba(14,14,19,.94);
  -webkit-backdrop-filter:blur(14px) saturate(150%);
  backdrop-filter:blur(14px) saturate(150%);
  border-bottom-color:var(--gd-line);
}
.gd-header[data-scrolled]::before,
.gd-header[data-nav-open]::before{opacity:0}

.gd-header__inner{
  position:relative;z-index:2;
  width:100%;max-width:var(--gd-shell);margin:0 auto;
  padding:0 var(--gd-gutter);
  min-height:var(--gd-header-h);
  display:flex;align-items:center;gap:clamp(12px,2vw,30px);
}

/* 品牌 */
.gd-brand{
  display:inline-flex;align-items:center;gap:12px;
  flex:0 0 auto;position:relative;z-index:3;
}
.gd-brand__mark{
  position:relative;flex:0 0 auto;
  width:34px;height:34px;border-radius:12px;
  background:linear-gradient(140deg,var(--gd-gold-hi),var(--gd-gold) 48%,#6B4F0C);
  box-shadow:0 0 0 1px rgba(245,211,107,.34),0 12px 28px -14px rgba(201,162,39,.95);
}
.gd-brand__mark::after{
  content:"";position:absolute;inset:9px;border-radius:3px;
  background:var(--gd-obsidian);transform:rotate(45deg);
}
.gd-brand__text{display:flex;flex-direction:column;line-height:1.16}
.gd-brand__name{
  font-family:var(--gd-font-display);font-weight:700;
  font-size:19px;letter-spacing:.07em;
}
.gd-brand__tag{
  font-family:var(--gd-font-mono);font-size:10.5px;
  letter-spacing:.18em;color:var(--gd-haze);white-space:nowrap;
}

/* 导航（桌面：横向滚动胶囊） */
.gd-nav{flex:1 1 auto;min-width:0;display:flex;justify-content:center}
.gd-nav__list{
  display:flex;align-items:center;gap:2px;
  max-width:100%;padding:4px;
  border-radius:var(--gd-radius-pill);
  background:rgba(14,14,19,.58);
  border:1px solid var(--gd-line-soft);
  overflow-x:auto;scrollbar-width:none;
}
.gd-nav__list::-webkit-scrollbar{display:none}
.gd-nav__link{
  display:block;white-space:nowrap;
  padding:9px 16px;border-radius:var(--gd-radius-pill);
  font-size:14.5px;letter-spacing:.04em;
  color:rgba(244,233,216,.78);
  transition:color .22s var(--gd-ease),background .22s var(--gd-ease),box-shadow .22s var(--gd-ease);
}
.gd-nav__link:hover{color:var(--gd-cream);background:rgba(201,162,39,.14)}
.gd-nav__link[aria-current="page"]{
  color:#150F02;
  background:linear-gradient(135deg,var(--gd-gold-hi),var(--gd-gold));
  box-shadow:0 12px 28px -16px rgba(201,162,39,.95);
}
.gd-nav__foot{display:none}

.gd-header__actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}

/* 移动菜单按钮 */
.gd-navtoggle{
  display:none;align-items:center;gap:10px;margin-left:auto;
  padding:10px 16px;border-radius:var(--gd-radius-pill);
  border:1px solid var(--gd-line);
  background:rgba(14,14,19,.76);
  color:var(--gd-cream);
  font-size:13px;letter-spacing:.1em;
  transition:border-color .22s var(--gd-ease),background .22s var(--gd-ease);
}
.gd-navtoggle:hover{border-color:var(--gd-gold-hi)}
.gd-navtoggle__bars{display:inline-flex;flex-direction:column;gap:4px;width:18px}
.gd-navtoggle__bars span{display:block;height:2px;border-radius:2px;background:var(--gd-gold-hi);
  transition:transform .26s var(--gd-ease),opacity .2s var(--gd-ease)}
.gd-navtoggle__bars span:nth-child(2){width:70%}
.gd-navtoggle[aria-expanded="true"] .gd-navtoggle__bars span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.gd-navtoggle[aria-expanded="true"] .gd-navtoggle__bars span:nth-child(2){opacity:0}
.gd-navtoggle[aria-expanded="true"] .gd-navtoggle__bars span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.gd-navtoggle__label{display:inline-block}

/* 阅读进度 */
.gd-progress{
  position:absolute;left:0;right:0;bottom:-1px;height:2px;
  background:rgba(244,233,216,.08);overflow:hidden;
}
.gd-progress__bar{
  display:block;height:100%;width:100%;
  transform:scaleX(0);transform-origin:left center;
  background:linear-gradient(90deg,var(--gd-gold),var(--gd-gold-hi) 48%,var(--gd-electric));
}

/* ---------- 按钮 ---------- */
.gd-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--gd-radius-pill);
  border:1px solid transparent;
  font-size:14.5px;font-weight:600;letter-spacing:.04em;
  transition:transform .22s var(--gd-ease),box-shadow .26s var(--gd-ease),
             background .26s var(--gd-ease),color .26s var(--gd-ease),border-color .26s var(--gd-ease);
}
.gd-btn--gold{
  background:linear-gradient(135deg,var(--gd-gold-hi),var(--gd-gold));
  color:#140E02;
  box-shadow:0 16px 36px -22px rgba(201,162,39,1);
}
.gd-btn--gold:hover{transform:translateY(-2px);box-shadow:0 22px 46px -20px rgba(245,211,107,.9)}
.gd-btn--ghost{
  border-color:var(--gd-line);
  background:rgba(244,233,216,.04);
  color:var(--gd-cream);
}
.gd-btn--ghost:hover{border-color:var(--gd-gold-hi);color:var(--gd-gold-hi);background:rgba(201,162,39,.13)}
.gd-btn--neon{
  border-color:rgba(124,77,255,.6);
  background:rgba(124,77,255,.13);
  color:#DCD2FF;
}
.gd-btn--neon:hover{background:rgba(124,77,255,.26);border-color:var(--gd-neon)}
.gd-btn--sm{padding:9px 15px;font-size:13px}
.gd-btn--block{width:100%}

/* ---------- 页脚 ---------- */
.gd-footer{
  position:relative;z-index:2;
  margin-top:clamp(64px,9vw,128px);
  background:linear-gradient(180deg,#0A0A0D 0%,var(--gd-brown) 52%,#070605 100%);
  border-top:1px solid var(--gd-line);
  overflow:hidden;
}
.gd-footer::before{
  content:"";position:absolute;top:-160px;right:-100px;width:440px;height:440px;
  border-radius:50%;pointer-events:none;
  background:radial-gradient(circle,rgba(124,77,255,.3),rgba(124,77,255,0) 68%);
}
.gd-footer::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(90deg,rgba(201,162,39,.07) 0 1px,transparent 1px 96px);
}
.gd-footer__inner{
  position:relative;z-index:1;
  width:100%;max-width:var(--gd-shell);margin:0 auto;
  padding:clamp(48px,7vw,86px) var(--gd-gutter) clamp(30px,4vw,48px);
  display:grid;gap:clamp(28px,4vw,58px);
  grid-template-columns:minmax(0,1.3fr) minmax(0,.85fr) minmax(0,1.05fr);
}
.gd-footer__brandcol{min-width:0}
.gd-brand--footer .gd-brand__mark{width:30px;height:30px;border-radius:10px}
.gd-brand--footer .gd-brand__mark::after{inset:8px}
.gd-brand--footer .gd-brand__name{font-size:17px}
.gd-footer__line{
  margin-top:20px;
  font-family:var(--gd-font-display);font-size:17px;letter-spacing:.04em;
  color:rgba(244,233,216,.9);
}
.gd-footer__note{
  margin-top:12px;max-width:36ch;
  font-size:13px;line-height:1.7;color:var(--gd-haze);
}
.gd-footer__nav,.gd-footer__contact{min-width:0}
.gd-footer__title{
  margin-bottom:18px;
  font-family:var(--gd-font-mono);font-size:11.5px;font-weight:500;
  letter-spacing:.26em;text-transform:uppercase;color:var(--gd-gold);
}
.gd-footer__links{display:grid;gap:11px}
.gd-footer__links a{
  display:inline-block;font-size:15px;color:rgba(244,233,216,.8);
  border-bottom:1px solid transparent;
  transition:color .22s var(--gd-ease),border-color .22s var(--gd-ease),transform .22s var(--gd-ease);
}
.gd-footer__links a:hover{color:var(--gd-gold-hi);border-bottom-color:var(--gd-line);transform:translateX(3px)}

.gd-footer__list{display:grid;gap:16px}
.gd-footer__item{display:flex;flex-direction:column;gap:5px}
.gd-footer__label{
  font-family:var(--gd-font-mono);font-size:10.5px;letter-spacing:.2em;
  text-transform:uppercase;color:var(--gd-haze);
}
.gd-footer__value{font-size:14.5px;line-height:1.65;color:rgba(244,233,216,.86)}
.gd-copy{
  display:inline-flex;align-items:center;gap:9px;align-self:flex-start;
  padding-bottom:2px;
  font-family:var(--gd-font-mono);font-size:14.5px;letter-spacing:.02em;
  color:var(--gd-cream);text-align:left;
  border-bottom:1px dashed var(--gd-line);
  transition:color .22s var(--gd-ease),border-color .22s var(--gd-ease);
}
.gd-copy::after{
  content:"复制";
  font-family:var(--gd-font-body);font-size:10.5px;letter-spacing:.12em;
  color:var(--gd-haze);
  border:1px solid var(--gd-line-soft);border-radius:999px;padding:1px 8px;
  transition:color .2s var(--gd-ease),border-color .2s var(--gd-ease);
}
.gd-copy:hover{color:var(--gd-gold-hi);border-bottom-color:var(--gd-gold-hi)}
.gd-copy[data-copied]::after{content:"已复制";color:var(--gd-electric);border-color:rgba(0,209,255,.5)}

.gd-footer__bottom{
  position:relative;z-index:1;
  width:100%;max-width:var(--gd-shell);margin:0 auto;
  padding:22px var(--gd-gutter) 40px;
  border-top:1px solid var(--gd-line-soft);
  display:flex;flex-wrap:wrap;align-items:center;gap:14px 22px;
  font-size:12.5px;color:var(--gd-haze);
}
.gd-mono{font-family:var(--gd-font-mono);letter-spacing:.06em}
.gd-footer__meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px;color:rgba(244,233,216,.7)}
.gd-footer__sep{color:rgba(201,162,39,.7)}
.gd-footer__feedback{flex:1 1 280px;line-height:1.7}
.gd-footer__link{color:var(--gd-gold-hi);border-bottom:1px solid var(--gd-line);margin-left:4px}
.gd-footer__link:hover{border-bottom-color:var(--gd-gold-hi)}
.gd-top{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 17px;border-radius:var(--gd-radius-pill);
  border:1px solid var(--gd-line);background:rgba(201,162,39,.1);
  color:var(--gd-cream);font-size:12.5px;letter-spacing:.1em;
  transition:background .24s var(--gd-ease),border-color .24s var(--gd-ease),transform .24s var(--gd-ease);
}
.gd-top:hover{background:rgba(201,162,39,.24);border-color:var(--gd-gold-hi);transform:translateY(-2px)}
.gd-footer__copy{
  margin-left:auto;font-family:var(--gd-font-mono);
  font-size:11.5px;letter-spacing:.1em;color:rgba(154,150,168,.85);
}

/* ---------- 容器 / 分区 ---------- */
.gd-shell{width:100%;max-width:var(--gd-shell);margin:0 auto;padding:0 var(--gd-gutter)}
.gd-page-top{padding-top:calc(var(--gd-header-h) + clamp(30px,5vw,66px))}
.gd-band{position:relative;padding:clamp(48px,7vw,98px) 0}
.gd-band--brown{background:linear-gradient(180deg,rgba(27,20,8,.92),rgba(5,5,7,0))}
.gd-band--panel{background:linear-gradient(180deg,rgba(14,14,19,.96),rgba(14,14,19,.6))}
.gd-band--cream{background:linear-gradient(180deg,#F4E9D8,#E7D8BE);color:#1A1408}
.gd-band--cream .gd-lead,.gd-band--cream .gd-body,.gd-band--cream .gd-card__text{color:rgba(26,20,8,.78)}
.gd-band--cream .gd-eyebrow{color:#7A5A0C}

/* ---------- 排版 ---------- */
.gd-eyebrow{
  display:inline-block;
  font-family:var(--gd-font-mono);font-size:11.5px;
  letter-spacing:.28em;text-transform:uppercase;color:var(--gd-gold-hi);
}
.gd-display{
  font-family:var(--gd-font-display);font-weight:700;
  font-size:clamp(42px,8vw,104px);line-height:1.02;letter-spacing:.02em;
}
.gd-h2{
  font-family:var(--gd-font-display);font-weight:700;
  font-size:clamp(28px,4vw,52px);line-height:1.14;letter-spacing:.02em;
}
.gd-h3{
  font-family:var(--gd-font-display);font-weight:700;
  font-size:clamp(20px,2.4vw,30px);line-height:1.32;
}
.gd-lead{
  font-size:clamp(16px,1.5vw,19px);line-height:1.8;
  color:rgba(244,233,216,.82);max-width:60ch;
}
.gd-body{font-size:17px;line-height:1.78;color:rgba(244,233,216,.76);max-width:68ch}
.gd-gold-text{color:var(--gd-gold-hi)}
.gd-rule{
  height:1px;border:0;margin:clamp(18px,3vw,34px) 0;
  background:linear-gradient(90deg,var(--gd-gold),rgba(201,162,39,0));
}

/* ---------- 网格 ---------- */
.gd-grid{display:grid;gap:clamp(16px,2.2vw,28px)}
.gd-grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.gd-grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.gd-grid--auto{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}

/* ---------- 卡片 ---------- */
.gd-card{
  position:relative;
  padding:clamp(20px,2.6vw,32px);
  border-radius:var(--gd-radius-md);
  background:linear-gradient(160deg,rgba(27,20,8,.94),rgba(14,14,19,.94));
  border:1px solid var(--gd-line-soft);
  box-shadow:var(--gd-shadow-card);
  transition:transform .3s var(--gd-ease),border-color .3s var(--gd-ease),box-shadow .3s var(--gd-ease);
}
.gd-card:hover{transform:translateY(-4px);border-color:var(--gd-line);box-shadow:var(--gd-shadow-gold)}
.gd-card__index{
  display:block;
  font-family:var(--gd-font-mono);font-size:11px;
  letter-spacing:.24em;color:var(--gd-gold);
}
.gd-card__title{
  margin:10px 0 8px;
  font-family:var(--gd-font-display);font-weight:700;
  font-size:clamp(19px,2vw,23px);line-height:1.35;
}
.gd-card__text{font-size:15px;line-height:1.75;color:rgba(244,233,216,.74)}
.gd-card--light{
  background:linear-gradient(160deg,#F7EFE2,#EDE0CB);
  color:#1A1408;border-color:rgba(27,20,8,.14);
}
.gd-card--light .gd-card__index{color:#8A6410}
.gd-card--light .gd-card__text{color:rgba(26,20,8,.76)}

/* ---------- 高密度索引 ---------- */
.gd-index{display:grid;border-top:1px solid var(--gd-line-soft)}
.gd-index__row{
  display:grid;grid-template-columns:auto minmax(0,1fr) auto;
  gap:16px;align-items:baseline;
  padding:16px 4px;
  border-bottom:1px solid var(--gd-line-soft);
  transition:background .22s var(--gd-ease),padding-left .22s var(--gd-ease);
}
.gd-index__row:hover{background:rgba(201,162,39,.07);padding-left:12px}
.gd-index__no{font-family:var(--gd-font-mono);font-size:12px;letter-spacing:.12em;color:var(--gd-gold)}
.gd-index__name{font-size:16px;line-height:1.6}
.gd-index__meta{font-family:var(--gd-font-mono);font-size:12px;letter-spacing:.08em;color:var(--gd-haze)}

/* ---------- 标签 ---------- */
.gd-chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:var(--gd-radius-pill);
  border:1px solid var(--gd-line);background:rgba(244,233,216,.04);
  color:rgba(244,233,216,.82);
  font-size:13.5px;letter-spacing:.04em;
  transition:color .22s var(--gd-ease),border-color .22s var(--gd-ease),background .22s var(--gd-ease);
}
.gd-chip:hover{border-color:var(--gd-gold-hi);color:var(--gd-gold-hi)}
.gd-chip[data-active],.gd-chip[aria-pressed="true"]{
  background:linear-gradient(135deg,var(--gd-gold-hi),var(--gd-gold));
  border-color:transparent;color:#140E02;font-weight:600;
}

/* ---------- 章节锚点目录 ---------- */
.gd-spy{display:flex;flex-wrap:wrap;gap:6px}
.gd-spy__link{
  display:inline-block;padding:7px 14px;border-radius:var(--gd-radius-pill);
  border:1px solid transparent;
  font-family:var(--gd-font-mono);font-size:12px;letter-spacing:.1em;
  color:var(--gd-haze);
  transition:color .22s var(--gd-ease),border-color .22s var(--gd-ease),background .22s var(--gd-ease);
}
.gd-spy__link:hover{color:var(--gd-cream)}
.gd-spy__link[data-active]{
  color:var(--gd-electric);border-color:rgba(0,209,255,.45);background:rgba(0,209,255,.08);
}

/* ---------- 面包屑 ---------- */
.gd-breadcrumb{font-family:var(--gd-font-mono);font-size:11.5px;letter-spacing:.14em}
.gd-breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.gd-breadcrumb li{display:inline-flex;align-items:center;gap:8px;color:var(--gd-haze)}
.gd-breadcrumb li::after{content:"/";color:rgba(201,162,39,.6)}
.gd-breadcrumb li:last-child::after{content:""}
.gd-breadcrumb a{color:var(--gd-haze);transition:color .2s var(--gd-ease)}
.gd-breadcrumb a:hover{color:var(--gd-gold-hi)}
.gd-breadcrumb [aria-current="page"]{color:var(--gd-cream)}

/* ---------- 图片容器（页面阶段使用） ---------- */
.gd-media{
  position:relative;overflow:hidden;
  border-radius:var(--gd-radius-lg);
  border:1px solid var(--gd-line-soft);
  background:linear-gradient(150deg,#17131C,#0A0A0D);
  isolation:isolate;
}
.gd-media__img{width:100%;height:100%;object-fit:cover}
.gd-media--wide{aspect-ratio:16/9}
.gd-media--tall{aspect-ratio:3/4}
.gd-media--square{aspect-ratio:1/1}
.gd-media--cut{clip-path:polygon(0 0,100% 0,100% 84%,0 100%);border-radius:var(--gd-radius-lg)}
.gd-media__cap{
  position:absolute;left:18px;right:18px;bottom:16px;z-index:2;
  font-family:var(--gd-font-mono);font-size:11px;letter-spacing:.14em;
  color:rgba(244,233,216,.86);
  text-shadow:0 2px 14px rgba(0,0,0,.9);
}
.gd-media--placeholder::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(circle at 28% 18%,rgba(201,162,39,.26),transparent 56%),
    radial-gradient(circle at 80% 84%,rgba(124,77,255,.3),transparent 60%);
}
.gd-media--placeholder::after{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(115deg,rgba(244,233,216,.05) 0 2px,transparent 2px 18px);
}

/* 贺兰山轮廓装饰 */
.gd-ridge{
  position:relative;height:clamp(56px,9vw,124px);
  overflow:hidden;pointer-events:none;
}
.gd-ridge::before{
  content:"";position:absolute;left:0;right:0;bottom:0;height:210%;
  background:linear-gradient(180deg,rgba(201,162,39,.34),rgba(5,5,7,0) 78%);
  clip-path:polygon(0 100%,0 64%,13% 42%,25% 60%,37% 26%,51% 55%,65% 22%,79% 50%,91% 34%,100% 57%,100% 100%);
}

/* ---------- 显现动效协议 ---------- */
html.gd-js [data-reveal]{
  opacity:0;transform:translateY(22px);
  transition:opacity .7s var(--gd-ease),transform .7s var(--gd-ease);
}
html.gd-js [data-reveal][data-revealed]{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .gd-header__actions{display:none}
  .gd-navtoggle{display:inline-flex}
  .gd-nav{
    position:fixed;top:0;right:0;bottom:0;z-index:80;
    width:min(84vw,360px);
    display:block;
    padding:calc(var(--gd-header-h) + 20px) 24px 40px;
    background:linear-gradient(180deg,#0E0E13,#050507 72%);
    border-left:1px solid var(--gd-line);
    box-shadow:-34px 0 70px -34px rgba(0,0,0,.95);
    overflow-y:auto;
    transform:translate3d(102%,0,0);
    transition:transform .38s var(--gd-ease);
  }
  .gd-nav[data-open]{transform:translate3d(0,0,0)}
  .gd-nav__list{
    display:grid;gap:6px;
    padding:0;background:none;border:0;overflow:visible;
  }
  .gd-nav__link{
    padding:15px 16px;border-radius:16px;font-size:16px;
    border:1px solid transparent;
  }
  .gd-nav__link:hover{background:rgba(201,162,39,.12);border-color:var(--gd-line-soft)}
  .gd-nav__link[aria-current="page"]{border-color:transparent}
  .gd-nav__foot{
    display:grid;gap:10px;margin-top:26px;padding-top:24px;
    border-top:1px dashed var(--gd-line);
  }
  .gd-footer__inner{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
  .gd-footer__brandcol{grid-column:1 / -1}
}
@media (max-width:900px){
  .gd-grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:680px){
  :root{--gd-header-h:66px}
  body{font-size:16px}
  .gd-brand__tag{display:none}
  .gd-navtoggle__label{display:none}
  .gd-navtoggle{padding:10px 14px}
  .gd-footer__inner{grid-template-columns:minmax(0,1fr)}
  .gd-footer__copy{margin-left:0}
  .gd-footer__bottom{padding-bottom:32px}
  .gd-grid--2,.gd-grid--3{grid-template-columns:minmax(0,1fr)}
  .gd-index__row{grid-template-columns:auto minmax(0,1fr);row-gap:6px}
  .gd-index__meta{grid-column:2}
}

/* ---------- 可达性与动效降级 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  html.gd-js [data-reveal]{opacity:1 !important;transform:none !important}
  .gd-nav{transition:none}
}