/* ==========================================================================
   冠竞体育主站 · 共享样式 /assets/site.css
   结构：1 重置 · 2 变量 · 3 基础排版 · 4 通用组件 · 5 头部 · 6 页脚 · 7 响应式 · 8 动效偏好
   ========================================================================== */

/* 1. 重置 ---------------------------------------------------------------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,p,figure,blockquote,dl,dd{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img,picture,svg,video{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0}
a{color:var(--gj-cyan);text-decoration-thickness:1px;text-underline-offset:3px}

/* 2. 变量 ---------------------------------------------------------------- */
:root{
  --gj-ink:#071A2F;
  --gj-panel:#0D2A45;
  --gj-deep:#04101C;
  --gj-cyan:#16E0D2;
  --gj-blue:#4FB8FF;
  --gj-amber:#FFB347;
  --gj-ember:#FF5C3A;
  --gj-paper:#F4F8FB;
  --gj-muted:#8FA6B8;
  --gj-line:rgba(143,166,184,.26);
  --gj-line-strong:rgba(143,166,184,.48);
  --gj-glow:rgba(22,224,210,.30);
  --gj-shadow-hard:8px 8px 0 0 rgba(4,16,28,.85);
  --gj-shadow-hard-lg:12px 14px 0 0 rgba(4,16,28,.9);
  --gj-radius:16px;
  --gj-radius-sm:10px;
  --gj-radius-pill:999px;
  --gj-max:1280px;
  --gj-gutter:clamp(18px,4vw,40px);
  --gj-header-h:78px;
  --gj-font-display:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --gj-font-body:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --gj-font-mono:ui-monospace,"SF Mono","Cascadia Mono","JetBrains Mono",Menlo,Consolas,"Noto Sans Mono","PingFang SC",monospace;
  --gj-ease:cubic-bezier(.2,.7,.25,1);
}

/* 3. 基础排版 ------------------------------------------------------------ */
body{
  min-height:100vh;
  overflow-x:hidden;
  background-color:var(--gj-ink);
  background-image:
    radial-gradient(1100px 560px at 10% -10%,rgba(79,184,255,.20),transparent 62%),
    radial-gradient(820px 480px at 96% 2%,rgba(255,179,71,.13),transparent 60%),
    repeating-linear-gradient(90deg,rgba(143,166,184,.055) 0 1px,transparent 1px 96px);
  background-attachment:fixed,fixed,scroll;
  color:var(--gj-paper);
  font-family:var(--gj-font-body);
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5{
  font-family:var(--gj-font-display);
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.06;
  margin-bottom:.5em;
  color:var(--gj-paper);
}
h1{font-size:clamp(2.6rem,6vw,5.2rem)}
h2{font-size:clamp(1.8rem,3.2vw,3rem)}
h3{font-size:clamp(1.15rem,1.7vw,1.5rem);letter-spacing:-.01em;line-height:1.2}
h4{font-size:1.05rem;letter-spacing:0;line-height:1.3}
p{margin-bottom:1em;max-width:34em}
strong{font-weight:800;color:#fff}
small{font-size:.82em}
#main-content{display:block;scroll-margin-top:calc(var(--gj-header-h) + 16px)}
#main-content:focus{outline:none}
[id]{scroll-margin-top:calc(var(--gj-header-h) + 20px)}

/* 4. 通用组件 ------------------------------------------------------------ */
.gj-skip{
  position:fixed;top:10px;left:10px;z-index:300;
  display:inline-block;padding:12px 20px;
  background:var(--gj-cyan);color:var(--gj-deep);
  font-weight:800;font-size:14px;letter-spacing:.04em;text-decoration:none;
  border-radius:0 0 12px 0;box-shadow:4px 4px 0 0 var(--gj-deep);
  transform:translateY(-200%);transition:transform .2s var(--gj-ease);
}
.gj-skip:focus,.gj-skip:focus-visible{transform:translateY(0)}

:focus-visible{outline:3px solid var(--gj-cyan);outline-offset:3px;border-radius:6px}

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

.gj-container{width:100%;max-width:var(--gj-max);margin-inline:auto;padding-inline:var(--gj-gutter)}
.gj-section{padding-block:clamp(44px,6.5vw,88px)}
.gj-section--tight{padding-block:clamp(28px,4vw,56px)}
.gj-section__head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:16px 28px;margin-bottom:clamp(20px,3vw,36px);
}
.gj-section__head > *{max-width:44em}

.gj-eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  margin:0 0 14px;font-size:11px;font-weight:800;
  letter-spacing:.18em;color:var(--gj-cyan);text-transform:uppercase;
}
.gj-eyebrow::before{content:"";width:24px;height:2px;background:currentColor;display:block}

.gj-lede{font-size:clamp(1rem,1.25vw,1.15rem);line-height:1.7;color:rgba(244,248,251,.86);max-width:36em}
.gj-muted{color:var(--gj-muted)}
.gj-link{color:var(--gj-cyan);font-weight:700;text-decoration:none;border-bottom:1px solid rgba(22,224,210,.45)}
.gj-link:hover{border-bottom-color:var(--gj-cyan);color:#fff}

.gj-num{font-family:var(--gj-font-mono);font-variant-numeric:tabular-nums;font-weight:700;letter-spacing:-.03em;line-height:1}
.gj-score{
  font-family:var(--gj-font-mono);font-variant-numeric:tabular-nums;
  font-weight:800;font-size:clamp(2.2rem,4vw,3.4rem);
  letter-spacing:-.05em;line-height:1;color:var(--gj-cyan);
}

.gj-btn{
  --gj-btn-bg:transparent;
  --gj-btn-fg:var(--gj-paper);
  --gj-btn-bd:var(--gj-line-strong);
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 18px;border-radius:var(--gj-radius-pill);
  border:1.5px solid var(--gj-btn-bd);background:var(--gj-btn-bg);color:var(--gj-btn-fg);
  font-family:var(--gj-font-body);font-size:14px;font-weight:700;letter-spacing:.02em;
  text-decoration:none;cursor:pointer;text-align:center;
  transition:transform .16s var(--gj-ease),background-color .16s var(--gj-ease),
             color .16s var(--gj-ease),border-color .16s var(--gj-ease),box-shadow .16s var(--gj-ease);
}
.gj-btn:hover{transform:translateY(-2px);border-color:var(--gj-cyan);color:var(--gj-cyan)}
.gj-btn:active{transform:translateY(0)}
.gj-btn--primary{
  --gj-btn-bg:var(--gj-amber);--gj-btn-fg:#2A1700;--gj-btn-bd:var(--gj-amber);
  box-shadow:4px 4px 0 0 rgba(4,16,28,.92);
}
.gj-btn--primary:hover{
  --gj-btn-bg:#FFC670;color:#2A1700;border-color:#FFC670;
  box-shadow:6px 6px 0 0 rgba(4,16,28,.92);
}
.gj-btn--ghost{--gj-btn-fg:var(--gj-cyan);--gj-btn-bd:rgba(22,224,210,.55);--gj-btn-bg:rgba(22,224,210,.07)}
.gj-btn--ghost:hover{--gj-btn-bg:rgba(22,224,210,.18);color:#fff;border-color:var(--gj-cyan)}
.gj-btn--cyan{--gj-btn-bg:var(--gj-cyan);--gj-btn-fg:var(--gj-deep);--gj-btn-bd:var(--gj-cyan);box-shadow:4px 4px 0 0 rgba(4,16,28,.92)}
.gj-btn--cyan:hover{--gj-btn-bg:#5FF2E7;color:var(--gj-deep);border-color:#5FF2E7}
.gj-btn--lg{padding:15px 26px;font-size:15px}
.gj-btn--block{display:flex;width:100%}

.gj-tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 9px;border-radius:6px;
  font-size:11px;font-weight:800;letter-spacing:.12em;line-height:1.4;
  background:rgba(22,224,210,.14);color:var(--gj-cyan);border:1px solid rgba(22,224,210,.36);
}
.gj-tag--amber{background:rgba(255,179,71,.16);color:var(--gj-amber);border-color:rgba(255,179,71,.42)}
.gj-tag--ember{background:rgba(255,92,58,.16);color:#FF8B72;border-color:rgba(255,92,58,.44)}

.gj-card{
  position:relative;
  padding:clamp(18px,2.4vw,28px);
  background:linear-gradient(180deg,rgba(13,42,69,.96),rgba(7,26,47,.97));
  border:1.5px solid var(--gj-line);
  border-radius:var(--gj-radius);
  box-shadow:var(--gj-shadow-hard);
  transition:transform .2s var(--gj-ease),border-color .2s var(--gj-ease),box-shadow .2s var(--gj-ease);
}
.gj-card:hover{transform:translateY(-4px);border-color:var(--gj-cyan);box-shadow:var(--gj-shadow-hard-lg)}
.gj-card--flat{box-shadow:none}
.gj-card--flat:hover{box-shadow:0 18px 40px -30px #000}
.gj-card--accent{border-color:rgba(22,224,210,.5)}
.gj-card--accent:hover{box-shadow:var(--gj-shadow-hard-lg),0 0 0 1px rgba(22,224,210,.4)}

.gj-media{
  position:relative;overflow:hidden;
  aspect-ratio:16/9;
  border:1.5px solid var(--gj-line);
  border-radius:var(--gj-radius);
  background:linear-gradient(150deg,#0D2A45 0%,#04101C 58%,#071A2F 100%);
}
.gj-media > img,.gj-media > picture > img{
  width:100%;height:100%;object-fit:cover;
  filter:saturate(.92) contrast(1.06) brightness(.95);
}
.gj-media::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(120% 90% at 88% 8%,rgba(255,179,71,.22),transparent 55%),
    radial-gradient(100% 80% at 4% 96%,rgba(22,224,210,.24),transparent 58%),
    repeating-linear-gradient(90deg,rgba(244,248,251,.06) 0 1px,transparent 1px 56px);
  mix-blend-mode:screen;
}
.gj-media--wide{aspect-ratio:21/9}
.gj-media--tall{aspect-ratio:4/5}
.gj-media--square{aspect-ratio:1/1}
.gj-media--plain::after{display:none}

.gj-band{
  position:relative;overflow:hidden;
  margin-block:clamp(40px,6vw,80px);
  padding-block:clamp(24px,4vw,48px);
  border-top:1.5px solid rgba(22,224,210,.36);
  border-bottom:1.5px solid rgba(255,179,71,.32);
  background:linear-gradient(100deg,rgba(22,224,210,.16),rgba(13,42,69,.92) 46%,rgba(255,179,71,.16));
}
.gj-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(90deg,rgba(244,248,251,.06) 0 1px,transparent 1px 48px);
}

.gj-breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  margin:0 0 24px;padding:0;
  font-size:12px;letter-spacing:.08em;color:var(--gj-muted);
  list-style:none;
}
.gj-breadcrumb li{display:flex;align-items:center;gap:8px}
.gj-breadcrumb li + li::before{content:"/";color:var(--gj-line-strong)}
.gj-breadcrumb a{color:var(--gj-muted);text-decoration:none}
.gj-breadcrumb a:hover{color:var(--gj-cyan)}
.gj-breadcrumb [aria-current="page"]{color:var(--gj-paper);font-weight:700}

.gj-rule{
  height:1.5px;border:0;margin:0;
  background:linear-gradient(90deg,var(--gj-cyan),rgba(143,166,184,0) 55%,var(--gj-amber));
  opacity:.6;
}

.gj-grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:clamp(16px,2vw,28px)}
.gj-col-4{grid-column:span 4}
.gj-col-5{grid-column:span 5}
.gj-col-6{grid-column:span 6}
.gj-col-7{grid-column:span 7}
.gj-col-8{grid-column:span 8}
.gj-col-12{grid-column:span 12}

.gj-stack{display:grid;gap:clamp(12px,1.6vw,20px);align-content:start}
.gj-cluster{display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px}

.gj-toc{
  position:sticky;top:calc(var(--gj-header-h) + 18px);
  display:grid;gap:4px;
  padding:16px;
  border:1.5px solid var(--gj-line);
  border-radius:var(--gj-radius);
  background:rgba(13,42,69,.72);
  backdrop-filter:blur(10px);
}
.gj-toc__title{
  margin:0 0 8px;font-size:11px;font-weight:800;letter-spacing:.18em;
  color:var(--gj-cyan);text-transform:uppercase;
}
.gj-toc__link{
  display:block;padding:8px 10px;border-radius:8px;
  border-left:2px solid transparent;
  color:var(--gj-muted);font-size:13.5px;line-height:1.4;text-decoration:none;
  transition:color .16s var(--gj-ease),background-color .16s var(--gj-ease),border-color .16s var(--gj-ease);
}
.gj-toc__link:hover{color:var(--gj-paper);background:rgba(22,224,210,.08)}
.gj-toc__link[data-active="true"]{
  color:var(--gj-cyan);border-left-color:var(--gj-cyan);background:rgba(22,224,210,.12);font-weight:700;
}

.gj-backtop{
  position:fixed;right:clamp(14px,3vw,28px);bottom:clamp(14px,3vw,28px);z-index:140;
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 16px;border-radius:var(--gj-radius-pill);
  border:1.5px solid rgba(22,224,210,.5);
  background:rgba(13,42,69,.94);color:var(--gj-cyan);
  font-size:12px;font-weight:800;letter-spacing:.14em;cursor:pointer;
  box-shadow:4px 4px 0 0 rgba(4,16,28,.9);
  backdrop-filter:blur(10px);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .24s var(--gj-ease),transform .24s var(--gj-ease),
             visibility .24s var(--gj-ease),background-color .16s var(--gj-ease);
}
.gj-backtop[data-visible="true"]{opacity:1;visibility:visible;transform:translateY(0)}
.gj-backtop:hover{background:rgba(22,224,210,.18);border-color:var(--gj-cyan)}
.gj-backtop__arrow{font-family:var(--gj-font-mono);font-size:14px;line-height:1}

.gj-progress{
  position:fixed;top:0;left:0;right:0;height:3px;z-index:160;
  background:linear-gradient(90deg,var(--gj-cyan) 0%,var(--gj-blue) 45%,var(--gj-amber) 78%,var(--gj-ember) 100%);
  transform:scaleX(var(--gj-progress,0));transform-origin:0 50%;
  transition:transform .12s linear;pointer-events:none;will-change:transform;
}

/* 5. 头部 ---------------------------------------------------------------- */
.gj-header{
  position:sticky;top:0;z-index:150;
  padding:14px var(--gj-gutter) 0;
}
.gj-header::before{
  content:"";position:absolute;inset:0 0 auto 0;height:120px;z-index:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(7,26,47,.96) 0%,rgba(7,26,47,.72) 58%,rgba(7,26,47,0) 100%);
}
.gj-header__inner{
  position:relative;z-index:1;
  display:flex;align-items:center;gap:clamp(10px,1.6vw,24px);
  max-width:var(--gj-max);margin-inline:auto;
  padding:10px 12px 10px 18px;
  border:1.5px solid var(--gj-line-strong);
  border-radius:var(--gj-radius-pill);
  background:linear-gradient(180deg,rgba(13,42,69,.95),rgba(7,26,47,.9));
  backdrop-filter:blur(16px) saturate(1.25);
  box-shadow:0 20px 44px -30px #000,0 0 0 1px rgba(22,224,210,.08) inset;
}

.gj-brand{
  display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;
  color:var(--gj-paper);text-decoration:none;
}
.gj-brand__mark{
  display:grid;place-items:center;flex:0 0 auto;
  width:38px;height:38px;
  font-family:var(--gj-font-display);font-weight:800;font-size:18px;line-height:1;
  color:var(--gj-deep);
  background:linear-gradient(135deg,var(--gj-cyan) 0%,var(--gj-blue) 52%,var(--gj-amber) 100%);
  clip-path:polygon(0 0,100% 0,100% 70%,70% 100%,0 100%);
  box-shadow:3px 3px 0 0 var(--gj-deep);
}
.gj-brand__text{display:flex;flex-direction:column;gap:1px;line-height:1.15}
.gj-brand__name{font-family:var(--gj-font-display);font-weight:800;font-size:17px;letter-spacing:.03em;color:var(--gj-paper)}
.gj-brand__tag{font-size:10.5px;letter-spacing:.16em;color:var(--gj-muted)}

.gj-nav{margin-left:auto}
.gj-nav__list{display:flex;align-items:center;gap:clamp(0px,.6vw,8px)}
.gj-nav__item{display:block}
.gj-nav__link{
  position:relative;display:inline-block;
  padding:9px 12px;border-radius:var(--gj-radius-pill);
  color:var(--gj-paper);text-decoration:none;
  font-size:14px;font-weight:600;letter-spacing:.01em;white-space:nowrap;
  transition:color .18s var(--gj-ease),background-color .18s var(--gj-ease);
}
.gj-nav__link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:5px;height:2px;
  background:var(--gj-cyan);transform:scaleX(0);transform-origin:0 50%;
  transition:transform .22s var(--gj-ease);
}
.gj-nav__link:hover,.gj-nav__link:focus-visible{color:var(--gj-cyan);background:rgba(22,224,210,.09)}
.gj-nav__link:hover::after{transform:scaleX(.55)}
.gj-nav__link[aria-current="page"]{color:var(--gj-cyan);background:rgba(22,224,210,.12);font-weight:800}
.gj-nav__link[aria-current="page"]::after{transform:scaleX(1)}

.gj-header__actions{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.gj-header__actions .gj-btn{white-space:nowrap}

.gj-navtoggle{
  display:none;align-items:center;gap:9px;margin-left:auto;
  padding:10px 15px;border-radius:var(--gj-radius-pill);
  border:1.5px solid var(--gj-line-strong);
  background:rgba(22,224,210,.09);color:var(--gj-paper);
  font-size:12px;font-weight:800;letter-spacing:.16em;cursor:pointer;
  transition:background-color .18s var(--gj-ease),border-color .18s var(--gj-ease);
}
.gj-navtoggle:hover{border-color:var(--gj-cyan);background:rgba(22,224,210,.18)}
.gj-navtoggle__bars{position:relative;display:block;width:18px;height:2px;background:currentColor;transition:background-color .18s var(--gj-ease)}
.gj-navtoggle__bars::before,.gj-navtoggle__bars::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;
  transition:transform .22s var(--gj-ease);
}
.gj-navtoggle__bars::before{top:-6px}
.gj-navtoggle__bars::after{top:6px}
.gj-header[data-open] .gj-navtoggle__bars{background:transparent}
.gj-header[data-open] .gj-navtoggle__bars::before{transform:translateY(6px) rotate(45deg)}
.gj-header[data-open] .gj-navtoggle__bars::after{transform:translateY(-6px) rotate(-45deg)}

@keyframes gj-panel-in{
  from{opacity:0;transform:translateY(-8px)}
  to{opacity:1;transform:translateY(0)}
}

/* 6. 页脚 ---------------------------------------------------------------- */
.gj-footer{
  position:relative;overflow:hidden;
  margin-top:clamp(56px,8vw,120px);
  background:var(--gj-deep);
  border-top:1.5px solid var(--gj-line);
}
.gj-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(640px 260px at 88% 0,rgba(79,184,255,.16),transparent 70%),
    radial-gradient(520px 240px at 4% 100%,rgba(22,224,210,.10),transparent 72%),
    repeating-linear-gradient(135deg,rgba(143,166,184,.05) 0 1px,transparent 1px 14px);
}
.gj-footer__stripe{
  position:relative;height:5px;
  background:linear-gradient(90deg,var(--gj-cyan) 0%,var(--gj-blue) 36%,var(--gj-amber) 72%,var(--gj-ember) 100%);
}
.gj-footer__inner{
  position:relative;
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1.6fr);
  gap:clamp(28px,5vw,64px);
  max-width:var(--gj-max);margin-inline:auto;
  padding:clamp(36px,5.5vw,68px) var(--gj-gutter) clamp(28px,4vw,44px);
}
.gj-footer__brand{display:flex;flex-direction:column;align-items:flex-start;gap:16px}
.gj-brand--footer .gj-brand__mark{width:44px;height:44px;font-size:20px}
.gj-brand--footer .gj-brand__name{font-size:19px}
.gj-brand--footer .gj-brand__tag{font-size:11px}
.gj-footer__line{
  max-width:30em;margin:0;
  font-size:14px;line-height:1.75;color:var(--gj-muted);
}
.gj-footer__meta{display:grid;gap:8px;font-size:13.5px;color:var(--gj-muted)}
.gj-footer__meta li{display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 10px}
.gj-footer__key{
  min-width:44px;
  font-size:10.5px;font-weight:800;letter-spacing:.16em;text-transform:uppercase;
  color:rgba(22,224,210,.9);
}
.gj-footer__val{
  font-family:var(--gj-font-mono);font-size:13px;letter-spacing:.01em;
  color:var(--gj-paper);word-break:break-word;
}
.gj-footer__val--text{font-family:var(--gj-font-body);font-size:13.5px;color:rgba(244,248,251,.9)}
.gj-footer__nav{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:clamp(20px,3vw,40px)}
.gj-footer__col{min-width:0}
.gj-footer__title{
  margin:0 0 14px;
  font-family:var(--gj-font-body);
  font-size:11px;font-weight:800;letter-spacing:.18em;
  color:var(--gj-cyan);text-transform:uppercase;
}
.gj-footer__links{display:grid;gap:10px}
.gj-footer__link{
  display:inline-block;padding:2px 0;
  color:var(--gj-paper);font-size:14px;text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .16s var(--gj-ease),border-color .16s var(--gj-ease);
}
.gj-footer__link:hover,.gj-footer__link:focus-visible{color:var(--gj-cyan);border-bottom-color:var(--gj-cyan)}
.gj-footer__base{
  position:relative;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px 24px;
  max-width:var(--gj-max);margin-inline:auto;
  padding:18px var(--gj-gutter) clamp(28px,4vw,40px);
  border-top:1px solid var(--gj-line);
  font-size:12.5px;color:var(--gj-muted);
}
.gj-footer__legal{margin:0;font-family:var(--gj-font-mono);letter-spacing:.06em}
.gj-footer__note{margin:0;max-width:34em;line-height:1.6}
.gj-footer__copy{margin:0;letter-spacing:.02em}

/* 7. 响应式 -------------------------------------------------------------- */
@media (max-width:1180px){
  .gj-nav__link{padding:9px 10px;font-size:13.5px}
  .gj-header__inner{padding-left:14px}
}

@media (max-width:1080px){
  :root{--gj-header-h:72px}
  .gj-header{padding:10px var(--gj-gutter) 0}
  .gj-header__inner{
    flex-wrap:wrap;gap:10px;
    padding:10px 14px;border-radius:22px;
  }
  .gj-brand{flex:1 1 auto}
  .gj-brand__tag{display:none}
  .gj-navtoggle{display:inline-flex}
  .gj-nav{
    display:none;order:3;flex:1 0 100%;
    margin:0;padding-top:8px;border-top:1px solid var(--gj-line);
  }
  .gj-header[data-open] .gj-nav{display:block;animation:gj-panel-in .22s var(--gj-ease)}
  .gj-nav__list{flex-direction:column;align-items:stretch;gap:2px}
  .gj-nav__link{
    display:block;padding:12px 12px;border-radius:12px;
    font-size:15px;font-weight:700;
  }
  .gj-nav__link::after{left:12px;right:auto;width:20px;bottom:9px}
  .gj-header__actions{
    display:none;order:4;flex:1 0 100%;
    gap:10px;padding:10px 0 2px;border-top:1px solid var(--gj-line);
  }
  .gj-header[data-open] .gj-header__actions{display:flex;animation:gj-panel-in .22s var(--gj-ease)}
  .gj-header__actions .gj-btn{flex:1 1 0;padding:12px 14px}
  .gj-footer__inner{grid-template-columns:1fr}
}

@media (max-width:900px){
  .gj-col-4,.gj-col-5,.gj-col-6,.gj-col-7,.gj-col-8{grid-column:span 12}
  .gj-toc{position:static;top:auto}
  .gj-section__head{align-items:flex-start}
}

@media (max-width:720px){
  body{font-size:15.5px}
  .gj-footer__nav{grid-template-columns:repeat(2,minmax(0,1fr))}
  .gj-footer__base{flex-direction:column;align-items:flex-start;gap:8px}
  .gj-backtop{padding:11px 13px;font-size:11px}
}

@media (max-width:480px){
  .gj-brand__mark{width:34px;height:34px;font-size:16px}
  .gj-brand__name{font-size:16px}
  .gj-footer__nav{grid-template-columns:1fr}
  .gj-btn{font-size:13.5px}
}

/* 8. 动效偏好 ------------------------------------------------------------ */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms!important;
    animation-iteration-count:1!important;
    transition-duration:.001ms!important;
    scroll-behavior:auto!important;
  }
  .gj-btn:hover,.gj-card:hover,.gj-backtop{transform:none}
  .gj-header[data-open] .gj-nav,.gj-header[data-open] .gj-header__actions{animation:none}
}