/* =========================================================
   open-door-jnh.com.cn — 共享样式表 /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,li,figure,figcaption,blockquote,dl,dd,pre{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse;width:100%}
input,textarea,select{font:inherit;color:inherit}

/* ── 2. 变量 ──────────────────────────────────────────── */
:root{
  /* 色彩 */
  --bg:#0C1F1A;          /* 深夜球场墨绿 */
  --hall:#122B24;        /* 门厅深绿 */
  --stand:#1E3E34;       /* 看台苔绿 */
  --gold:#F2B544;        /* 门缝暖金 */
  --gold-soft:#FFD98A;   /* 暖金浅阶 */
  --pulse:#FF5A2B;       /* 赛事脉冲橙红 */
  --red:#E0361B;         /* 开哨朱红 */
  --paper:#F5F0E6;       /* 公告板米白 */
  --mist:#9AA8A3;        /* 冷灰雾 */
  --cyan:#35D6C0;        /* 电光青 */
  --deep:#06120E;        /* 深墨黑 */

  /* 线条 */
  --line:rgba(245,240,230,.12);
  --line-soft:rgba(245,240,230,.07);
  --line-gold:rgba(242,181,68,.24);

  /* 字体 */
  --font-body:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-display:"PingFang SC","Source Han Sans SC","Noto Sans SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"SFMono-Regular",Menlo,Consolas,"DejaVu Sans Mono","Liberation Mono",monospace;

  /* 尺寸 */
  --rail-w:88px;
  --band-h:54px;
  --radius:10px;
  --radius-sm:6px;
  --wrap:1280px;
  --ease:cubic-bezier(.22,.68,.32,1);
}

/* ── 3. 基底与中文排版 ────────────────────────────────── */
body{
  min-height:100vh;
  background:
    radial-gradient(1100px 560px at 88% -8%, rgba(53,214,192,.07), transparent 62%),
    radial-gradient(860px 520px at 4% 6%, rgba(242,181,68,.10), transparent 64%),
    linear-gradient(180deg,#0E241E 0%, var(--bg) 42%, #0A1A15 100%);
  background-attachment:fixed;
  color:var(--paper);
  font-family:var(--font-body);
  font-size:16px;
  font-weight:400;
  line-height:1.75;
  letter-spacing:.01em;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
p{max-width:68ch}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:900;line-height:1.12;letter-spacing:-.02em}
strong{font-weight:800;color:var(--gold-soft)}
::selection{background:rgba(242,181,68,.32);color:var(--paper)}

/* 焦点可见 */
:focus-visible{outline:2px solid var(--gold-soft);outline-offset:3px;border-radius:4px}
:focus:not(:focus-visible){outline:none}

/* 屏幕阅读器专用 */
.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;
}

/* 跳转链接 */
.skip-link{
  position:fixed;left:12px;top:-80px;z-index:400;
  padding:12px 22px;
  background:var(--gold);color:var(--deep);
  font-family:var(--font-display);font-weight:800;font-size:14px;
  border-radius:0 0 8px 8px;
  transition:top .18s var(--ease);
}
.skip-link:focus{top:0}

/* ── 4. 头部外壳 ──────────────────────────────────────── */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:linear-gradient(180deg,#0E241E 0%,#0C1F1A 62%,rgba(12,31,26,.96) 100%);
  border-bottom:1px solid var(--line-gold);
}

/* 阅读进度 */
.read-progress{
  position:absolute;left:0;right:0;bottom:-1px;height:2px;
  background:rgba(245,240,230,.08);
  pointer-events:none;
}
.read-progress-bar{
  display:block;height:100%;width:0;
  background:linear-gradient(90deg,var(--gold),var(--pulse));
  transition:width .12s linear;
}

/* 品牌行 */
.masthead{
  display:flex;align-items:center;justify-content:space-between;
  gap:20px;
  min-height:74px;
  padding:12px clamp(16px,3.4vw,44px);
}
.brand{display:flex;align-items:center;gap:14px;min-width:0}
.brand-mark{
  position:relative;flex:none;
  width:38px;height:38px;
  border:1.5px solid rgba(242,181,68,.5);
  border-radius:var(--radius-sm);
  background:linear-gradient(160deg,var(--stand),var(--deep));
  display:grid;place-items:center;
  box-shadow:inset 0 0 18px rgba(6,18,14,.8);
}
.brand-mark::before{
  content:"";width:3px;height:20px;border-radius:2px;
  background:linear-gradient(180deg,var(--gold),var(--pulse));
  box-shadow:0 0 14px rgba(242,181,68,.75);
}
.brand-text{display:block;min-width:0}
.brand-name{
  display:block;
  font-family:var(--font-display);font-weight:900;
  font-size:17px;line-height:1.2;letter-spacing:.01em;
  color:var(--paper);white-space:nowrap;
}
.brand-line{
  display:block;margin-top:3px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.26em;
  color:var(--gold);white-space:nowrap;
}

.masthead-side{display:flex;align-items:center;gap:12px}
.desk-status{
  display:none;
  align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;
  color:var(--cyan);
  padding:6px 12px;
  border:1px solid rgba(53,214,192,.3);
  border-radius:999px;
}
.status-dot{
  width:7px;height:7px;border-radius:50%;flex:none;
  background:var(--cyan);
  box-shadow:0 0 0 0 rgba(53,214,192,.6);
  animation:dot-breathe 3.4s ease-in-out infinite;
}
@keyframes dot-breathe{
  0%,100%{opacity:.65;box-shadow:0 0 0 0 rgba(53,214,192,.5)}
  50%{opacity:1;box-shadow:0 0 0 5px rgba(53,214,192,0)}
}

/* ── 5. 按钮体系 ──────────────────────────────────────── */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;
  font-family:var(--font-display);font-weight:800;font-size:14px;letter-spacing:.03em;
  border:1px solid transparent;border-radius:999px;
  white-space:nowrap;
  transition:background-color .16s var(--ease),color .16s var(--ease),
             border-color .16s var(--ease),box-shadow .16s var(--ease),transform .16s var(--ease);
}
.btn-pulse{
  background:linear-gradient(135deg,var(--pulse),var(--red));
  color:#FFF6F1;
  box-shadow:0 8px 24px -10px rgba(255,90,43,.9);
}
.btn-pulse::before{
  content:"";width:7px;height:7px;border-radius:50%;flex:none;
  background:#FFF6F1;
  animation:pulse-dot 2.4s ease-out infinite;
}
.btn-pulse:hover{
  background:linear-gradient(135deg,#FF7549,#F0492A);
  box-shadow:0 10px 28px -8px rgba(255,90,43,1);
}
@keyframes pulse-dot{
  0%{box-shadow:0 0 0 0 rgba(255,246,241,.7)}
  70%{box-shadow:0 0 0 7px rgba(255,246,241,0)}
  100%{box-shadow:0 0 0 0 rgba(255,246,241,0)}
}
.btn-gold{background:var(--gold);color:var(--deep)}
.btn-gold:hover{background:var(--gold-soft)}
.btn-ghost{border-color:rgba(245,240,230,.26);color:var(--paper)}
.btn-ghost:hover{border-color:var(--gold);color:var(--gold-soft);background:rgba(242,181,68,.08)}

/* ── 6. 移动导航开关 ──────────────────────────────────── */
.nav-toggle{
  display:inline-flex;align-items:center;gap:9px;
  padding:9px 14px;
  border:1px solid rgba(242,181,68,.4);
  border-radius:8px;
  color:var(--gold-soft);
  font-family:var(--font-display);font-weight:800;font-size:13px;letter-spacing:.08em;
  transition:border-color .16s var(--ease),background-color .16s var(--ease);
}
.nav-toggle:hover{border-color:var(--gold);background:rgba(242,181,68,.1)}
.nav-toggle-bars{position:relative;display:block;width:16px;height:10px;flex:none}
.nav-toggle-bars::before,
.nav-toggle-bars::after{
  content:"";position:absolute;left:0;width:100%;height:2px;border-radius:2px;
  background:currentColor;
  transition:transform .2s var(--ease);
}
.nav-toggle-bars::before{top:0}
.nav-toggle-bars::after{bottom:0}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before{transform:translateY(4px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::after{transform:translateY(-4px) rotate(-45deg)}
.nav-toggle-text{line-height:1}

/* ── 7. 联赛光带 ──────────────────────────────────────── */
.league-band{
  display:flex;align-items:center;gap:14px;
  height:var(--band-h);
  padding:0 clamp(16px,3.4vw,44px);
  border-top:1px solid rgba(242,181,68,.16);
  background:
    linear-gradient(90deg,
      rgba(242,181,68,.13) 0%,
      rgba(242,181,68,.04) 35%,
      rgba(53,214,192,.06) 72%,
      rgba(6,18,14,.1) 100%);
  box-shadow:inset 0 1px 0 rgba(255,217,138,.08);
}
.league-band-label{
  flex:none;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.3em;
  color:var(--gold);white-space:nowrap;
}
.league-track{
  display:flex;align-items:center;gap:8px;
  overflow-x:auto;overflow-y:hidden;
  padding:6px 2px;
  scrollbar-width:thin;
  scrollbar-color:rgba(242,181,68,.4) transparent;
}
.league-track::-webkit-scrollbar{height:3px}
.league-track::-webkit-scrollbar-track{background:transparent}
.league-track::-webkit-scrollbar-thumb{background:rgba(242,181,68,.4);border-radius:3px}
.league-chip{
  display:inline-flex;align-items:center;gap:9px;
  padding:5px 13px;
  border:1px solid rgba(245,240,230,.16);
  border-radius:999px;
  font-size:13px;letter-spacing:.02em;
  color:rgba(245,240,230,.88);
  white-space:nowrap;
  transition:border-color .16s var(--ease),background-color .16s var(--ease),color .16s var(--ease);
}
.league-time{font-family:var(--font-mono);font-size:12px;color:var(--cyan);letter-spacing:.04em}
.league-chip:hover{
  border-color:var(--gold);color:var(--gold-soft);background:rgba(242,181,68,.1);
}
.league-chip:hover .league-time{color:var(--gold-soft)}
.league-chip.is-live{border-color:rgba(255,90,43,.5)}
.league-chip.is-live::before{
  content:"";width:6px;height:6px;border-radius:50%;flex:none;
  background:var(--pulse);
  animation:pulse-dot 2s ease-out infinite;
}
.league-chip.is-live .league-time{color:var(--pulse)}

/* ── 8. 侧边轨道导航（桌面） ──────────────────────────── */
.rail{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--rail-w);
  z-index:90;
  display:flex;flex-direction:column;
  gap:8px;
  padding:22px 0;
  background:linear-gradient(180deg,var(--deep) 0%,#0B1D18 46%,var(--deep) 100%);
  border-right:1px solid var(--line-gold);
  box-shadow:14px 0 42px -26px rgba(0,0,0,.95);
}
.rail-list{
  display:flex;flex-direction:column;gap:2px;
  width:100%;
  margin-block:auto;
}
.rail-item{position:relative}
.rail-link{
  position:relative;
  display:flex;align-items:center;justify-content:center;
  padding:14px 0;
  color:var(--mist);
  transition:color .16s var(--ease);
}
.rail-num{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;
}
.rail-label{
  position:absolute;left:100%;top:50%;
  transform:translate(-6px,-50%);
  margin-left:10px;
  padding:7px 13px;
  background:var(--deep);
  border:1px solid rgba(242,181,68,.42);
  border-radius:var(--radius-sm);
  font-family:var(--font-display);font-weight:800;font-size:13px;
  color:var(--gold-soft);
  white-space:nowrap;
  opacity:0;pointer-events:none;
  transition:opacity .16s var(--ease),transform .16s var(--ease);
  box-shadow:0 10px 26px -14px rgba(0,0,0,1);
}
.rail-link:hover,.rail-link:focus-visible{color:var(--gold-soft)}
.rail-link:hover .rail-label,
.rail-link:focus-visible .rail-label{opacity:1;transform:translate(0,-50%)}
.rail-link[aria-current="page"]{color:var(--gold-soft)}
.rail-link[aria-current="page"]::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;
  border-radius:0 3px 3px 0;
  background:linear-gradient(180deg,var(--gold),var(--pulse));
  box-shadow:0 0 16px rgba(242,181,68,.8);
}
.rail-link[aria-current="page"] .rail-num{color:var(--gold)}
.rail-foot{
  display:flex;flex-direction:column;align-items:center;gap:6px;
  padding-top:14px;
  border-top:1px solid var(--line-soft);
  font-family:var(--font-mono);font-size:10px;letter-spacing:.18em;
  color:rgba(154,168,163,.7);
  text-align:center;
}
.rail-foot span{writing-mode:vertical-rl;letter-spacing:.24em}

/* ── 9. 主体容器 ──────────────────────────────────────── */
main{display:block;min-height:62vh;position:relative;z-index:1}
main:focus{outline:none}
.wrap{
  width:100%;max-width:var(--wrap);
  margin-inline:auto;
  padding-inline:clamp(20px,3.4vw,44px);
}

/* ── 10. 通用内容组件 ─────────────────────────────────── */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding-block:18px;
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.06em;
  color:var(--mist);
}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:rgba(154,168,163,.5)}
.breadcrumb a{transition:color .16s var(--ease)}
.breadcrumb a:hover{color:var(--gold-soft)}
.breadcrumb [aria-current="page"]{color:var(--gold)}

.kicker{
  display:inline-block;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.3em;
  color:var(--gold);
}
.kicker--vertical{
  writing-mode:vertical-rl;
  letter-spacing:.32em;
  color:var(--gold);
}

.section-head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:18px;
  margin-bottom:clamp(20px,3vw,36px);
}
.section-head h2{font-size:clamp(28px,3.4vw,44px)}
.section-head p{color:var(--mist);font-size:15px}

.board{
  position:relative;
  padding:clamp(20px,2.6vw,32px);
  background:linear-gradient(150deg,var(--stand) 0%,rgba(18,43,36,.94) 68%,rgba(6,18,14,.96) 100%);
  border:1px solid var(--line-gold);
  border-radius:var(--radius);
  box-shadow:0 22px 46px -32px rgba(0,0,0,.95);
}
.board::after{
  content:"";position:absolute;inset:6px;
  border:1px solid rgba(245,240,230,.06);
  border-radius:var(--radius-sm);
  pointer-events:none;
}

.dossier{
  display:grid;
  grid-template-columns:auto 1fr;
  gap:6px 16px;
  padding:18px 4px;
  border-bottom:1px dashed var(--line);
}
.dossier:last-child{border-bottom:0}
.dossier-num{
  grid-row:span 2;
  font-family:var(--font-mono);font-size:13px;letter-spacing:.06em;
  color:var(--cyan);
}
.dossier-title{
  font-family:var(--font-display);font-weight:800;font-size:17px;
  color:var(--paper);line-height:1.4;
}
.dossier-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;
  color:var(--mist);
}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 10px;
  border:1px solid rgba(242,181,68,.42);
  border-radius:999px;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.12em;
  color:var(--gold);
  white-space:nowrap;
}
.tag--cyan{border-color:rgba(53,214,192,.45);color:var(--cyan)}
.tag--pulse{border-color:rgba(255,90,43,.5);color:var(--pulse)}

.split{display:grid;gap:clamp(24px,3.4vw,52px);grid-template-columns:1fr;align-items:start}

/* 图片占位容器（页面阶段放置图片 / SVG） */
.media-frame{
  position:relative;
  display:block;
  overflow:hidden;
  aspect-ratio:16/10;
  border:1px solid var(--line-gold);
  border-radius:var(--radius);
  background:linear-gradient(135deg,var(--stand) 0%,rgba(6,18,14,.96) 100%);
}
.media-frame::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(53,214,192,.1) 1px,transparent 1px),
    linear-gradient(90deg,rgba(53,214,192,.1) 1px,transparent 1px);
  background-size:30px 30px;
  opacity:.65;
  pointer-events:none;
}
.media-frame::after{
  content:"";position:absolute;left:0;right:0;top:38%;height:2px;
  background:linear-gradient(90deg,transparent,rgba(242,181,68,.7),transparent);
  opacity:.8;
  pointer-events:none;
}
.media-frame img,
.media-frame svg{
  position:absolute;inset:0;
  width:100%;height:100%;
  object-fit:cover;
}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--tall{aspect-ratio:3/4}
.media-frame--square{aspect-ratio:1/1}
.media-frame figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:24px 16px 12px;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em;
  color:var(--paper);
  background:linear-gradient(180deg,transparent,rgba(6,18,14,.92));
}

/* 进入视口显现 */
[data-reveal]{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .2s var(--ease),transform .2s var(--ease);
}
[data-reveal].is-visible{opacity:1;transform:none}

/* 复制反馈轻提示 */
.toast{
  position:fixed;left:50%;bottom:30px;
  transform:translate(-50%,16px);
  z-index:320;
  padding:11px 22px;
  background:var(--gold);color:var(--deep);
  font-family:var(--font-display);font-weight:800;font-size:14px;
  border-radius:999px;
  opacity:0;pointer-events:none;
  box-shadow:0 16px 36px -18px rgba(0,0,0,1);
  transition:opacity .2s var(--ease),transform .2s var(--ease);
}
.toast.is-on{opacity:1;transform:translate(-50%,0)}

/* ── 11. 页脚 ─────────────────────────────────────────── */
.site-footer{
  position:relative;
  margin-top:clamp(52px,7vw,104px);
  background:linear-gradient(180deg,#071410 0%,var(--deep) 100%);
  border-top:1px solid var(--line-gold);
  color:var(--mist);
  font-size:14px;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--gold),transparent);
  opacity:.7;
}
.footer-inner{
  max-width:var(--wrap);
  margin-inline:auto;
  padding:clamp(38px,5.5vw,68px) clamp(20px,3.4vw,44px) clamp(24px,3.4vw,42px);
  display:grid;
  gap:clamp(28px,3.6vw,52px);
  grid-template-columns:1fr;
}
.footer-logo{
  font-family:var(--font-display);font-weight:900;font-size:20px;
  color:var(--paper);letter-spacing:.01em;
}
.footer-slogan{
  margin-top:8px;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.3em;
  color:var(--gold);
}
.footer-note{margin-top:16px;color:rgba(245,240,230,.7);max-width:34ch}
.footer-status{
  display:inline-flex;align-items:center;gap:8px;
  margin-top:16px;
  padding:6px 13px;
  border:1px solid rgba(53,214,192,.3);
  border-radius:999px;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.16em;
  color:var(--cyan);
}
.footer-update{
  margin-top:18px;
  padding-top:16px;
  border-top:1px solid var(--line-soft);
  font-size:13px;
  line-height:1.85;
  color:rgba(154,168,163,.92);
  max-width:40ch;
}
.footer-cols{display:grid;gap:24px 20px;grid-template-columns:repeat(2,minmax(0,1fr))}
.footer-col-title{
  font-family:var(--font-display);font-weight:900;font-size:14px;
  color:var(--paper);letter-spacing:.06em;
  margin-bottom:10px;
}
.footer-col-text{font-size:12.5px;line-height:1.8;color:rgba(154,168,163,.86);margin-bottom:10px}
.footer-link{
  display:inline-block;
  font-size:13px;
  color:var(--gold);
  border-bottom:1px solid rgba(242,181,68,.35);
  padding-bottom:2px;
  transition:color .16s var(--ease),border-color .16s var(--ease);
}
.footer-link:hover{color:var(--gold-soft);border-color:var(--gold-soft)}
.footer-link-strong{
  font-family:var(--font-display);font-weight:800;font-size:15px;
  color:var(--paper);border-bottom-color:rgba(245,240,230,.34);
}
.footer-link-strong:hover{color:var(--gold-soft);border-color:var(--gold-soft)}
.footer-contact{margin-top:16px;display:flex;flex-direction:column;gap:8px}
.copy-btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:7px 12px;
  border:1px dashed rgba(242,181,68,.36);
  border-radius:var(--radius-sm);
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.04em;
  color:var(--paper);
  transition:border-color .16s var(--ease),background-color .16s var(--ease);
  max-width:100%;
}
.copy-value{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.copy-hint{
  flex:none;
  font-size:11px;letter-spacing:.14em;
  color:var(--gold);
}
.copy-btn:hover{border-color:var(--gold);background:rgba(242,181,68,.1)}
.footer-addr{margin-top:14px;font-size:12.5px;line-height:1.8;color:rgba(154,168,163,.86)}
.footer-service{margin-top:12px;font-size:12px;line-height:1.85;color:rgba(154,168,163,.72)}
.footer-legal{display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:18px}
.footer-legal a{
  font-size:12.5px;color:var(--mist);
  border-bottom:1px solid rgba(154,168,163,.3);
  transition:color .16s var(--ease),border-color .16s var(--ease);
}
.footer-legal a:hover{color:var(--gold-soft);border-color:var(--gold-soft)}
.footer-base{
  max-width:var(--wrap);
  margin-inline:auto;
  padding:20px clamp(20px,3.4vw,44px) 30px;
  border-top:1px solid var(--line-soft);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:10px 24px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;
  color:rgba(154,168,163,.78);
}

/* ── 12. 断点 ─────────────────────────────────────────── */
@media (min-width:560px){
  .desk-status{display:inline-flex}
}

@media (min-width:768px){
  .footer-cols{grid-template-columns:repeat(2,minmax(0,1fr))}
  .dossier{grid-template-columns:auto 1fr auto;align-items:baseline}
  .dossier-num{grid-row:auto}
  .dossier-meta{grid-column:3;justify-content:flex-end}
}

@media (min-width:900px){
  .split{grid-template-columns:7fr 5fr}
  .split--reverse{grid-template-columns:5fr 7fr}
  .footer-inner{grid-template-columns:1.05fr 1.9fr}
}

@media (min-width:1024px){
  .site-header{padding-left:var(--rail-w)}
  main{padding-left:var(--rail-w)}
  .read-progress{left:var(--rail-w)}
  .nav-toggle{display:none}
  .footer-inner{
    grid-template-columns:1.05fr 2fr 1.35fr;
    padding-left:calc(var(--rail-w) + clamp(20px,3.4vw,44px));
  }
  .footer-base{padding-left:calc(var(--rail-w) + clamp(20px,3.4vw,44px))}
  .footer-cols{grid-template-columns:repeat(4,minmax(0,1fr))}
  .masthead{min-height:78px}
  .brand-name{font-size:18px}
}

/* 平板及以下：轨道收纳为抽屉 */
@media (max-width:1023px){
  .rail{
    width:min(84vw,340px);
    justify-content:flex-start;
    padding:96px 22px 30px;
    gap:0;
    overflow-y:auto;
    background:linear-gradient(180deg,#0A1C16 0%,var(--deep) 100%);
    border-right:1px solid rgba(242,181,68,.34);
    box-shadow:26px 0 70px -30px rgba(0,0,0,1);
    transform:translateX(-102%);
    transition:transform .28s var(--ease);
  }
  .rail[data-open]{transform:translateX(0)}
  .rail-list{margin-block:0;gap:0}
  .rail-link{
    justify-content:flex-start;
    gap:16px;
    padding:16px 10px;
    border-bottom:1px solid var(--line-soft);
  }
  .rail-num{width:28px;color:var(--gold);font-size:12.5px}
  .rail-label{
    position:static;
    transform:none;
    opacity:1;
    margin:0;
    padding:0;
    background:none;
    border:0;
    box-shadow:none;
    font-size:16px;
    color:inherit;
  }
  .rail-link:hover .rail-label,
  .rail-link:focus-visible .rail-label{transform:none;opacity:1}
  .rail-link[aria-current="page"]::before{top:11px;bottom:11px}
  .rail-foot{
    flex-direction:row;
    justify-content:space-between;
    align-items:center;
    margin-top:26px;
    padding-top:18px;
  }
  .rail-foot span{writing-mode:horizontal-tb}
  body[data-nav-open]{overflow:hidden}
}

@media (max-width:560px){
  .league-band-label{display:none}
  .brand-line{font-size:10px;letter-spacing:.2em}
  .btn{font-size:13px;padding:10px 16px}
  .copy-hint{display:none}
  .footer-cols{grid-template-columns:1fr}
}

/* ── 13. 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;
  }
  [data-reveal]{opacity:1;transform:none}
  .read-progress-bar{transition:none}
}