/* ============================================================
   银河品牌站 · 共享样式 /assets/site.css
   深空底 + 晨光金入口 + 经幡状态色 · 纵向长卷外壳
   ============================================================ */

:root{
  --sky-deep:#05070F;
  --sky-night:#0C1428;
  --nebula:#17224A;
  --paper:#F3EEE2;
  --gold:#E9C173;
  --orange:#F09A3E;
  --ice:#58B7DA;
  --jade:#77CBA5;
  --crimson:#CF5A50;
  --violet:#9A8FD6;

  --ink-80:rgba(243,238,226,.82);
  --ink-70:rgba(243,238,226,.7);
  --ink-50:rgba(243,238,226,.5);
  --ink-30:rgba(243,238,226,.3);
  --hair:rgba(243,238,226,.12);
  --hair-strong:rgba(243,238,226,.22);

  --font-heading:"HarmonyOS Sans SC","MiSans","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-body:"Source Han Sans SC","Noto Sans SC",Inter,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;

  --grid-max:1200px;
  --header-h:88px;
  --radius-s:8px;
  --radius-m:16px;
  --radius-l:28px;
  --radius-pill:999px;

  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:220ms;
  --shadow-float:0 20px 44px -26px rgba(0,0,0,.9);
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
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{display:block;max-width:100%}
img{height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
table{border-collapse:collapse;width:100%}
::selection{background:var(--gold);color:#0A0D18}

:focus-visible{outline:2px solid var(--gold);outline-offset:2px;box-shadow:0 0 0 4px rgba(5,7,15,.92);border-radius:4px}

/* ---------- 页面底色 ---------- */
body{
  min-height:100vh;
  padding-top:var(--header-h);
  background-color:var(--sky-deep);
  color:var(--paper);
  font-family:var(--font-body);
  font-size:1.0625rem;
  line-height:1.75;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body::before{
  content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:
    radial-gradient(1100px 640px at 82% -12%, rgba(88,183,218,.15), transparent 62%),
    radial-gradient(760px 520px at 4% 6%, rgba(154,143,214,.13), transparent 60%),
    radial-gradient(1100px 840px at 50% 112%, rgba(233,193,115,.09), transparent 66%);
}
body::after{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.55;
  background-image:
    radial-gradient(1.4px 1.4px at 24px 36px, rgba(243,238,226,.5), transparent 60%),
    radial-gradient(1px 1px at 142px 92px, rgba(88,183,218,.55), transparent 60%),
    radial-gradient(1.2px 1.2px at 88px 192px, rgba(233,193,115,.45), transparent 60%),
    radial-gradient(1px 1px at 208px 152px, rgba(243,238,226,.32), transparent 60%);
  background-size:240px 240px;
}

/* ---------- 排版 ---------- */
h1,h2,h3,h4{font-family:var(--font-heading);font-weight:800;letter-spacing:-.02em;line-height:1.2}
.gx-h1{font-size:clamp(2.4rem,6.5vw,6rem);font-weight:900;line-height:1.02;letter-spacing:-.035em}
.gx-h2{font-size:clamp(1.6rem,3.4vw,2.4rem);font-weight:800;line-height:1.18}
.gx-h3{font-size:clamp(1.15rem,1.8vw,1.4rem);font-weight:700;line-height:1.3}
.gx-eyebrow{
  display:inline-block;font-family:var(--font-mono);font-size:.8125rem;
  letter-spacing:.18em;text-transform:uppercase;color:var(--ice);font-weight:600;
}
.gx-lede{font-size:clamp(1.0625rem,1.5vw,1.25rem);line-height:1.85;color:var(--ink-70);max-width:56ch}
.gx-prose{max-width:68ch;color:var(--ink-80);font-size:1rem}
.gx-prose p+p{margin-top:1.1em}
.gx-prose a{color:var(--ice);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.gx-prose a:hover{color:var(--gold)}
.gx-mono{font-family:var(--font-mono);font-weight:600;font-variant-numeric:tabular-nums}
.gx-meta{font-family:var(--font-mono);font-size:.8125rem;color:var(--ink-50);letter-spacing:.04em}
.gx-link{color:var(--ice);text-decoration:underline;text-underline-offset:3px}
.gx-link:hover{color:var(--gold)}

/* ---------- 容器与网格 ---------- */
.gx-wrap{width:min(100% - 2.5rem, var(--grid-max));margin-inline:auto}
.gx-section{position:relative;padding-block:clamp(3.5rem,7vw,7rem)}
.gx-grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:clamp(1.25rem,3vw,2.5rem)}
.gx-grid > .span-3{grid-column:span 3}
.gx-grid > .span-4{grid-column:span 4}
.gx-grid > .span-6{grid-column:span 6}
.gx-grid > .span-8{grid-column:span 8}
.gx-grid > .span-12{grid-column:span 12}

.gx-rail{
  position:sticky;top:calc(var(--header-h) + 1.25rem);align-self:start;
  display:flex;flex-direction:column;gap:.35rem;
  font-family:var(--font-mono);font-size:.75rem;letter-spacing:.16em;
  color:var(--ink-30);grid-column:span 1;
}
.gx-rail-num{color:var(--gold);font-size:1.125rem;font-weight:600;letter-spacing:.06em}

.gx-rule{height:1px;background:linear-gradient(90deg,transparent,var(--hair-strong) 18%,var(--hair-strong) 82%,transparent);border:0}
.gx-band{
  height:4px;border-radius:2px;border:0;
  background:linear-gradient(90deg,var(--gold),var(--orange) 20%,var(--crimson) 40%,var(--violet) 60%,var(--ice) 80%,var(--jade));
}

/* ---------- 按钮 ---------- */
.gx-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  min-height:44px;padding:.7rem 1.4rem;
  border-radius:var(--radius-pill);border:1px solid transparent;
  font-family:var(--font-heading);font-weight:700;font-size:.9375rem;
  line-height:1.2;white-space:nowrap;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),
             border-color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.gx-btn--gold{background:var(--gold);color:#14100A}
.gx-btn--gold:hover{background:#F4D99C;transform:translateY(-2px)}
.gx-btn--ghost{border-color:var(--hair-strong);color:var(--paper);background:rgba(23,34,74,.4)}
.gx-btn--ghost:hover{border-color:var(--gold);color:var(--gold);transform:translateY(-2px)}
.gx-btn--block{width:100%}

/* ---------- 面包屑 ---------- */
.gx-crumbs{padding-top:1.5rem}
.gx-crumbs-list{display:flex;flex-wrap:wrap;align-items:center;gap:.45rem;
  font-family:var(--font-mono);font-size:.8125rem;color:var(--ink-50)}
.gx-crumbs-list li{display:flex;align-items:center;gap:.45rem}
.gx-crumbs-list li+li::before{content:"/";color:var(--ink-30)}
.gx-crumbs-list a:hover{color:var(--gold)}
.gx-crumb-current{color:var(--paper)}

/* ---------- 卡片 ---------- */
.gx-card{
  position:relative;display:flex;flex-direction:column;
  padding:clamp(1.25rem,2.4vw,1.9rem);
  border:1px solid var(--hair);border-radius:var(--radius-m);
  background:linear-gradient(158deg, rgba(23,34,74,.9), rgba(12,20,40,.94));
  transition:border-color var(--dur) var(--ease),transform var(--dur) var(--ease),
             background var(--dur) var(--ease);
}
.gx-card--link:hover{border-color:rgba(233,193,115,.5);transform:translateY(-2px)}
.gx-card--accent{border-color:rgba(233,193,115,.32)}
.gx-card--accent::before{
  content:"";position:absolute;left:0;top:0;width:64px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--gold),transparent);
}
.gx-card-hd{display:flex;align-items:center;justify-content:space-between;gap:1rem;margin-bottom:.7rem}
.gx-card-bd{color:var(--ink-70);font-size:.9375rem;flex:1}
.gx-card-ft{
  margin-top:1.1rem;padding-top:.9rem;border-top:1px solid var(--hair);
  display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap;
  font-family:var(--font-mono);font-size:.8125rem;color:var(--ink-50);
}

/* ---------- 标签 ---------- */
.gx-tag{
  display:inline-flex;align-items:center;gap:.35rem;
  padding:.16rem .68rem;border-radius:var(--radius-pill);
  font-family:var(--font-mono);font-size:.75rem;font-weight:600;letter-spacing:.04em;
  background:rgba(88,183,218,.12);border:1px solid rgba(88,183,218,.42);color:#A6DEF5;
}
.gx-tag--gold{background:rgba(233,193,115,.12);border-color:rgba(233,193,115,.45);color:var(--gold)}
.gx-tag--orange{background:rgba(240,154,62,.12);border-color:rgba(240,154,62,.45);color:#F5B473}
.gx-tag--ice{background:rgba(88,183,218,.12);border-color:rgba(88,183,218,.42);color:#A6DEF5}
.gx-tag--jade{background:rgba(119,203,165,.12);border-color:rgba(119,203,165,.45);color:#9BDCC0}
.gx-tag--crimson{background:rgba(207,90,80,.14);border-color:rgba(207,90,80,.48);color:#E48C84}
.gx-tag--violet{background:rgba(154,143,214,.14);border-color:rgba(154,143,214,.45);color:#B9B1E6}

/* ---------- 表格 ---------- */
.gx-table-scroll{
  overflow-x:auto;border:1px solid var(--hair);border-radius:var(--radius-m);
  background:rgba(12,20,40,.62);
}
.gx-table{min-width:580px;font-size:.9375rem}
.gx-table th,.gx-table td{padding:.85rem 1.1rem;text-align:left;vertical-align:top;border-bottom:1px solid var(--hair)}
.gx-table thead th{
  font-family:var(--font-mono);font-size:.75rem;font-weight:600;letter-spacing:.12em;
  text-transform:uppercase;color:var(--ink-50);background:rgba(23,34,74,.85);white-space:nowrap;
}
.gx-table tbody tr{transition:background var(--dur) var(--ease)}
.gx-table tbody tr:hover{background:rgba(88,183,218,.07)}
.gx-table tbody tr:last-child td{border-bottom:0}
.gx-table td:first-child{font-family:var(--font-mono);color:var(--gold);white-space:nowrap}

/* ---------- 列表 ---------- */
.gx-list{display:grid;gap:.6rem}
.gx-list li{position:relative;padding-left:1.4rem;color:var(--ink-70);font-size:.9375rem}
.gx-list li::before{
  content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;border-radius:50%;
  background:var(--gold);opacity:.75;
}

/* ---------- 折叠 ---------- */
.gx-fold{
  border:1px solid var(--hair);border-radius:var(--radius-m);
  background:rgba(12,20,40,.62);overflow:hidden;
  transition:border-color var(--dur) var(--ease);
}
.gx-fold:hover{border-color:var(--hair-strong)}
.gx-fold summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:1rem;
  padding:1rem 1.25rem;font-family:var(--font-heading);font-weight:700;font-size:1.0625rem;
}
.gx-fold summary::-webkit-details-marker{display:none}
.gx-fold summary::after{content:"＋";font-family:var(--font-mono);color:var(--gold);font-size:1.05rem}
.gx-fold[open] summary::after{content:"－"}
.gx-fold-bd{padding:0 1.25rem 1.35rem;color:var(--ink-70);font-size:.9375rem}

/* ---------- 媒体容器 ---------- */
.media-frame{
  position:relative;overflow:hidden;isolation:isolate;
  border:1px solid var(--hair);border-radius:var(--radius-m);
  background:linear-gradient(150deg,var(--nebula),var(--sky-night));
}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(120% 82% at 82% 0%, rgba(88,183,218,.2), transparent 62%);
}
.media-frame img,.media-frame svg{width:100%;height:100%;object-fit:cover}
.media-frame--wide{aspect-ratio:16/9}
.media-frame--tall{aspect-ratio:9/16;max-width:360px}
.media-frame--device{
  aspect-ratio:9/19.5;max-width:300px;margin-inline:auto;padding:10px;
  border-radius:34px;border-color:rgba(243,238,226,.16);
  background:linear-gradient(160deg,#1C2749,#070C1A);
}
.media-frame--device img,.media-frame--device svg{border-radius:26px}
.media-frame-cap{margin-top:.7rem;font-family:var(--font-mono);font-size:.75rem;color:var(--ink-50);letter-spacing:.04em}
.media-frame-cap--center{text-align:center}

/* ---------- 入场显现协议 ---------- */
[data-reveal]{
  opacity:0;transform:translateY(12px);
  transition:opacity .38s var(--ease),transform .38s var(--ease);
}
[data-reveal].is-revealed{opacity:1;transform:none}

/* ============================================================
   头部
   ============================================================ */
.skip-link{
  position:fixed;left:1rem;top:-120px;z-index:200;
  padding:.7rem 1.15rem;border-radius:var(--radius-s);
  background:var(--gold);color:#0A0D18;font-weight:700;font-size:.9375rem;
  transition:top .18s var(--ease);
}
.skip-link:focus{top:.75rem}

.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  padding:.75rem 0 0;
  transition:padding var(--dur) var(--ease);
}
.scroll-progress{
  position:absolute;left:0;right:0;top:0;height:3px;
  background:linear-gradient(90deg,var(--gold),var(--orange) 20%,var(--crimson) 40%,var(--violet) 60%,var(--ice) 80%,var(--jade));
  transform:scaleX(var(--progress,0));transform-origin:0 50%;
  transition:transform .1s linear;
}
.header-inner{
  width:min(100% - 2.5rem, var(--grid-max));
  margin-inline:auto;
  display:flex;align-items:center;gap:1.25rem;
  min-height:64px;padding:.5rem .5rem .5rem 1rem;
  border:1px solid var(--hair);border-radius:var(--radius-pill);
  background:rgba(12,20,40,.9);
  box-shadow:var(--shadow-float);
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
@supports ((backdrop-filter:blur(4px)) or (-webkit-backdrop-filter:blur(4px))){
  .header-inner{
    background:rgba(12,20,40,.66);
    -webkit-backdrop-filter:blur(14px) saturate(140%);
    backdrop-filter:blur(14px) saturate(140%);
  }
}
.site-header[data-condensed="true"] .header-inner{
  background:rgba(9,14,30,.88);
  border-color:var(--hair-strong);
}

.brand-lockup{display:flex;align-items:center;gap:.75rem;min-width:0;flex:0 0 auto}
.brand-mark{
  position:relative;width:34px;height:34px;flex:0 0 auto;border-radius:50%;
  background:radial-gradient(circle at 32% 28%, #F9E4B4, var(--gold) 46%, #85672A 100%);
  box-shadow:0 0 0 1px rgba(233,193,115,.35),0 0 22px -6px rgba(233,193,115,.75);
}
.brand-mark::after{
  content:"";position:absolute;inset:-7px;border-radius:50%;
  border:1px solid rgba(88,183,218,.6);
  transform:rotate(-24deg) scaleY(.44);
}
.brand-text{display:flex;flex-direction:column;line-height:1.22;min-width:0}
.brand-name{font-family:var(--font-heading);font-weight:800;font-size:1.0625rem;letter-spacing:.01em;white-space:nowrap}
.brand-sub{
  font-family:var(--font-mono);font-size:.6875rem;color:var(--ink-50);
  letter-spacing:.05em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  transition:opacity var(--dur) var(--ease),max-height var(--dur) var(--ease);
}
.site-header[data-condensed="true"] .brand-sub{opacity:.55}

.nav-capsule{
  margin-left:auto;display:flex;align-items:center;gap:.35rem;
  padding:.35rem .45rem .35rem .5rem;
  border:1px solid var(--hair);border-radius:var(--radius-pill);
  background:rgba(23,34,74,.6);
}
.nav-list{display:flex;align-items:center;gap:.1rem}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  min-height:38px;padding:.4rem .8rem;border-radius:var(--radius-pill);
  font-size:.9375rem;font-weight:500;color:var(--ink-70);
  transition:color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.nav-link:hover{color:var(--paper);background:rgba(243,238,226,.07)}
.nav-link[aria-current="page"]{color:var(--gold)}
.nav-link[aria-current="page"]::after{
  content:"";position:absolute;left:50%;bottom:2px;width:14px;height:2px;border-radius:2px;
  background:var(--gold);transform:translateX(-50%);
}
.nav-divider{width:1px;height:22px;background:var(--hair-strong);margin-inline:.45rem}
.nav-utility{display:flex;align-items:center;gap:.3rem}

.util-link{
  display:inline-flex;align-items:center;min-height:38px;padding:.4rem .7rem;
  border-radius:var(--radius-pill);
  font-family:var(--font-mono);font-size:.8125rem;font-weight:600;color:var(--ice);
  transition:color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.util-link:hover{color:#B7E6F8;background:rgba(88,183,218,.14)}

.version-chip{
  display:inline-flex;align-items:center;gap:.45rem;min-height:38px;padding:.4rem .85rem;
  border-radius:var(--radius-pill);border:1px dashed rgba(233,193,115,.5);
  font-family:var(--font-mono);font-size:.8125rem;font-weight:600;color:var(--gold);
  transition:border-color var(--dur) var(--ease),background var(--dur) var(--ease),color var(--dur) var(--ease);
}
.version-chip:hover{border-style:solid;background:rgba(233,193,115,.12)}
.version-chip-dot{width:6px;height:6px;border-radius:50%;background:var(--jade);box-shadow:0 0 0 3px rgba(119,203,165,.18)}
.version-chip[data-copied="true"]{border-style:solid;border-color:var(--jade);color:var(--jade);background:rgba(119,203,165,.14)}
.version-chip[data-copied="true"] .version-chip-dot{background:var(--gold)}

.nav-toggle{
  display:none;margin-left:auto;flex:0 0 auto;
  width:46px;height:46px;border-radius:50%;
  align-items:center;justify-content:center;
  border:1px solid var(--hair-strong);background:rgba(23,34,74,.7);
  transition:border-color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.nav-toggle:hover{border-color:var(--gold)}
.nav-toggle-lines{
  position:relative;display:block;width:18px;height:2px;border-radius:2px;background:var(--paper);
  transition:background var(--dur) var(--ease);
}
.nav-toggle-lines::before,
.nav-toggle-lines::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--paper);
  transition:transform var(--dur) var(--ease),opacity .18s var(--ease);
}
.nav-toggle-lines::before{top:-6px}
.nav-toggle-lines::after{top:6px}
.nav-toggle[aria-expanded="true"] .nav-toggle-lines{background:transparent}
.nav-toggle[aria-expanded="true"] .nav-toggle-lines::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-lines::after{transform:translateY(-6px) rotate(-45deg)}

/* ============================================================
   页脚
   ============================================================ */
.site-footer{
  position:relative;overflow:hidden;
  margin-top:clamp(4rem,8vw,8rem);
  padding-block:clamp(3rem,6vw,5rem) 2rem;
  border-top:1px solid var(--hair);
  background:linear-gradient(180deg, rgba(12,20,40,0) 0%, rgba(12,20,40,.92) 14%, var(--sky-night) 100%);
  color:var(--ink-70);
}
.footer-constellation{
  position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(620px 320px at 88% 0%, rgba(88,183,218,.14), transparent 62%),
    radial-gradient(520px 280px at 8% 100%, rgba(154,143,214,.13), transparent 66%);
}
.footer-inner{position:relative;display:grid;gap:clamp(2rem,4vw,3rem)}

.footer-top{display:grid;grid-template-columns:minmax(220px,1fr) 2fr;gap:clamp(2rem,4vw,3rem)}
.footer-brand-name{font-family:var(--font-heading);font-weight:900;font-size:clamp(1.35rem,2.4vw,1.7rem);letter-spacing:-.01em;color:var(--paper)}
.footer-brand-sub{margin-top:.5rem;font-size:.9375rem;line-height:1.8;color:var(--ink-50);max-width:34ch}
.footer-coord{margin-top:1.1rem;font-size:.75rem;letter-spacing:.14em;color:var(--gold);opacity:.85}

.footer-cols{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1.5rem}
.footer-col-title{
  font-family:var(--font-mono);font-size:.75rem;font-weight:600;
  letter-spacing:.14em;text-transform:uppercase;color:var(--ink-50);
  padding-bottom:.7rem;margin-bottom:.9rem;border-bottom:1px solid var(--hair);
}
.footer-links{display:grid;gap:.55rem}
.footer-links a{
  display:inline-block;font-size:.9375rem;color:var(--ink-70);
  transition:color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.footer-links a:hover{color:var(--gold);transform:translateX(2px)}

.footer-contact{border-top:1px solid var(--hair);padding-top:1.75rem}
.footer-contact-title{
  font-family:var(--font-mono);font-size:.75rem;font-weight:600;
  letter-spacing:.14em;text-transform:uppercase;color:var(--ink-50);
}
.contact-list{display:grid;gap:1rem;margin-top:1.1rem}
.contact-item{display:flex;flex-direction:column;gap:.2rem}
.contact-key{font-family:var(--font-mono);font-size:.6875rem;letter-spacing:.12em;color:var(--ink-30)}
.contact-val{font-size:.9375rem;color:var(--paper);word-break:break-word}
.contact-note{margin-top:1.25rem;max-width:72ch;font-size:.8125rem;line-height:1.85;color:var(--ink-50)}

.footer-base{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:1rem;
  border-top:1px solid var(--hair);padding-top:1.25rem;
}
.footer-legal{font-family:var(--font-mono);font-size:.8125rem;letter-spacing:.04em;color:var(--ink-50)}
.footer-top-btn{
  display:inline-flex;align-items:center;min-height:44px;padding:.55rem 1.15rem;
  border:1px solid var(--hair-strong);border-radius:var(--radius-pill);
  font-family:var(--font-mono);font-size:.8125rem;font-weight:600;color:var(--ink-70);
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.footer-top-btn:hover{border-color:var(--gold);color:var(--gold);transform:translateY(-2px)}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width:1100px){
  :root{--header-h:84px}
}

@media (max-width:960px){
  :root{--header-h:76px}
  .site-header{padding:.6rem 0 0}
  .header-inner{width:min(100% - 1.5rem, var(--grid-max));min-height:58px;padding:.35rem .35rem .35rem .85rem;gap:.5rem}

  .nav-toggle{display:inline-flex}

  .nav-capsule{
    position:fixed;left:0;right:0;top:calc(var(--header-h) - 10px);bottom:0;
    margin:0;padding:1.5rem 1.25rem 3rem;
    flex-direction:column;align-items:stretch;gap:1.25rem;
    border-radius:0 0 var(--radius-l) var(--radius-l);
    border-left:0;border-right:0;
    background:linear-gradient(180deg, rgba(9,14,30,.98), rgba(5,7,15,.99));
    overflow-y:auto;
    opacity:0;visibility:hidden;transform:translateY(-14px);
    transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease),visibility var(--dur) var(--ease);
  }
  @supports ((backdrop-filter:blur(4px)) or (-webkit-backdrop-filter:blur(4px))){
    .nav-capsule{
      -webkit-backdrop-filter:blur(18px);
      backdrop-filter:blur(18px);
      background:linear-gradient(180deg, rgba(9,14,30,.94), rgba(5,7,15,.97));
    }
  }
  .nav-capsule[data-open="true"]{opacity:1;visibility:visible;transform:none}

  .nav-list{counter-reset:nav;flex-direction:column;align-items:stretch;gap:.25rem}
  .nav-link{
    justify-content:flex-start;border-radius:var(--radius-m);
    padding:.9rem 1rem;min-height:52px;
    font-size:1.125rem;font-weight:700;color:var(--paper);
  }
  .nav-link::before{
    counter-increment:nav;content:counter(nav,decimal-leading-zero);
    font-family:var(--font-mono);font-size:.75rem;font-weight:600;
    color:var(--ink-30);margin-right:.85rem;
  }
  .nav-link[aria-current="page"]{
    background:rgba(233,193,115,.1);color:var(--gold);
    box-shadow:inset 3px 0 0 0 var(--gold);
  }
  .nav-link[aria-current="page"]::after{display:none}

  .nav-divider{width:100%;height:1px;margin:0;background:var(--hair)}
  .nav-utility{flex-direction:column;align-items:stretch;gap:.4rem}
  .util-link{
    min-height:48px;padding:.7rem .9rem;border-radius:var(--radius-m);
    background:rgba(88,183,218,.08);font-size:.9375rem;
  }
  .version-chip{min-height:48px;padding:.7rem .9rem;border-radius:var(--radius-m);justify-content:flex-start}

  .footer-top{grid-template-columns:1fr}
}

@media (max-width:760px){
  .gx-wrap{width:min(100% - 1.75rem, var(--grid-max))}
  .gx-grid{grid-template-columns:repeat(6,minmax(0,1fr))}
  .gx-grid > .span-3,
  .gx-grid > .span-4,
  .gx-grid > .span-6,
  .gx-grid > .span-8{grid-column:1/-1}
  .gx-rail{position:static;grid-column:1/-1;flex-direction:row;gap:.75rem;align-items:baseline}
  .contact-list{grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media (max-width:620px){
  .footer-cols{grid-template-columns:repeat(2,minmax(0,1fr));gap:1.35rem 1rem}
  .contact-list{grid-template-columns:1fr;gap:.85rem}
  .footer-base{flex-direction:column;align-items:flex-start}
}

@media (max-width:420px){
  .brand-sub{max-width:150px}
  .footer-cols{grid-template-columns:1fr}
}

/* ---------- 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;
  }
  [data-reveal]{opacity:1 !important;transform:none !important}
  .gx-btn:hover,.gx-card--link:hover,.footer-links a:hover,.footer-top-btn:hover{transform:none}
}