/* ==========================================================================
   乐思体育 · 共享样式 /assets/site.css
   01 重置  02 变量  03 基础排版  04 通用组件  05 页头  06 页脚  07 响应式与偏好
   ========================================================================== */

/* 01 重置 ---------------------------------------------------------------- */
*,*::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,video{display:block;max-width:100%;height:auto}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse;width:100%}
[hidden]{display:none !important}

/* 02 变量 ---------------------------------------------------------------- */
:root{
  --blue:#0057FF;
  --ink:#0A0E1A;
  --white:#FFFFFF;
  --lime:#B4FF39;
  --orange:#FF6A1A;
  --navy:#061033;
  --ice:#E8F0FF;
  --steel:#A8B6D9;
  --cyan:#00E0C6;
  --lime-soft:#D9FF9E;
  --muted:#4A5A80;

  --radius:4px;
  --bd:2px;
  --shadow-hard:4px 6px 0 var(--ink);
  --shadow-lift:6px 8px 0 var(--ink);
  --ease:cubic-bezier(.2,.7,.2,1);
  --t-fast:140ms;
  --t-base:200ms;

  --font-display:Impact,Anton,"Noto Sans SC","Source Han Sans","PingFang SC","Microsoft YaHei",sans-serif;
  --font-body:Inter,"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-mono:"IBM Plex Mono","DIN Alternate",ui-monospace,SFMono-Regular,Menlo,monospace;

  --shell:1440px;
  --read:1180px;
  --stack:16px;
}

/* 03 基础排版 ------------------------------------------------------------ */
body{
  font-family:var(--font-body);
  font-size:1.05rem;
  font-weight:400;
  line-height:1.75;
  color:var(--ink);
  background:var(--white);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4{
  font-weight:900;
  letter-spacing:-.02em;
  line-height:1.05;
  text-wrap:balance;
}
h1{font-size:clamp(2.6rem,7vw,6.4rem);line-height:.96}
h2{font-size:clamp(1.8rem,4vw,3.2rem);line-height:1.02}
h3{font-size:1.35rem;line-height:1.2}
h4{font-size:1.05rem;letter-spacing:0}
p{text-wrap:pretty}
strong,b{font-weight:800}
small{font-size:.85rem}
code,kbd,samp{font-family:var(--font-mono);font-size:.92em}
:focus-visible{
  outline:2px solid var(--lime);
  outline-offset:2px;
  box-shadow:0 0 0 2px var(--ink);
}
::selection{background:var(--lime);color:var(--ink)}
#main-content{scroll-margin-top:110px}

.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;
}

/* 04 通用组件 ------------------------------------------------------------ */
.container{width:100%;max-width:var(--read);margin:0 auto;padding:0 clamp(16px,4vw,40px)}
.container--wide{max-width:var(--shell)}

.section{padding:clamp(40px,7vw,80px) 0}
.section--dark{background:var(--ink);color:var(--white)}
.section--ice{background:var(--ice)}
.section--blue{background:var(--blue);color:var(--white)}

.stack>*+*{margin-top:var(--stack,16px)}

.rule-band{
  height:6px;
  background:linear-gradient(90deg,var(--blue) 0%,var(--cyan) 55%,var(--lime) 100%);
  transform:skewY(-1.2deg);
}

.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:.78rem;font-weight:800;letter-spacing:.16em;
  color:var(--blue);text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:3px;background:var(--lime);flex:none}

.prose{max-width:68ch}
.prose p+p{margin-top:1.1em}
.prose h2{margin-top:1.6em;margin-bottom:.6em}
.prose h3{margin-top:1.4em;margin-bottom:.5em}
.prose a{color:var(--blue);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:2px}
.prose a:hover{background:var(--lime-soft)}
.prose ul,.prose ol{margin:1em 0 1em 1.2em}
.prose ul{list-style:square}
.prose ol{list-style:decimal}
.prose li+li{margin-top:.4em}

/* 面包屑 */
.breadcrumbs{padding:18px 0 0;font-size:.85rem;color:var(--muted)}
.breadcrumbs__list{display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.breadcrumbs__link{color:var(--blue);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:2px}
.breadcrumbs__sep{color:var(--steel)}
.breadcrumbs__current{font-weight:800;color:var(--ink)}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 18px;
  font-family:var(--font-body);
  font-size:.92rem;font-weight:800;letter-spacing:.01em;
  border:var(--bd) solid var(--ink);
  border-radius:var(--radius);
  background:var(--white);color:var(--ink);
  box-shadow:3px 3px 0 var(--ink);
  transition:transform var(--t-fast) var(--ease),box-shadow var(--t-fast) var(--ease),
             background-color var(--t-fast) var(--ease),color var(--t-fast) var(--ease),
             border-color var(--t-fast) var(--ease);
  cursor:pointer;text-align:center;
}
.btn:hover{transform:translate(-1px,-1px);box-shadow:5px 6px 0 var(--ink)}
.btn:active{transform:translate(2px,2px);box-shadow:1px 1px 0 var(--ink)}
.btn--sm{padding:7px 12px;font-size:.82rem;box-shadow:2px 2px 0 var(--ink)}
.btn--sm:hover{box-shadow:4px 4px 0 var(--ink)}
.btn--primary{background:var(--blue);color:var(--white)}
.btn--cta{background:var(--orange);color:var(--white);box-shadow:3px 3px 0 var(--lime)}
.btn--cta:hover{background:#ff7d33;box-shadow:5px 5px 0 var(--lime-soft)}
.btn--ghost{background:transparent;color:var(--white);border-color:rgba(168,182,217,.7);box-shadow:none}
.btn--ghost:hover{background:rgba(0,87,255,.28);border-color:var(--lime-soft);color:var(--lime-soft);box-shadow:3px 3px 0 var(--navy)}

.link-arrow{
  display:inline-flex;align-items:center;gap:8px;
  font-weight:800;color:var(--blue);
  border-bottom:2px solid transparent;
  transition:border-color var(--t-fast) var(--ease),color var(--t-fast) var(--ease);
}
.link-arrow::after{content:"\2192";transition:transform var(--t-fast) var(--ease)}
.link-arrow:hover{border-bottom-color:var(--lime)}
.link-arrow:hover::after{transform:translateX(3px)}

/* 状态点 */
.dot{
  display:inline-block;width:8px;height:8px;border-radius:50%;
  background:var(--steel);flex:none;
}
.dot--lime{background:var(--lime);box-shadow:0 0 0 3px rgba(180,255,57,.22)}
.dot--blue{background:var(--blue);box-shadow:0 0 0 3px rgba(0,87,255,.24)}
.dot--cyan{background:var(--cyan);box-shadow:0 0 0 3px rgba(0,224,198,.22)}
.dot--orange{background:var(--orange)}

/* 标签 */
.tag{
  display:inline-block;padding:3px 9px;
  font-size:.75rem;font-weight:800;line-height:1.5;
  border:var(--bd) solid var(--ink);border-radius:2px;
  background:var(--white);color:var(--ink);
}
.tag--lime{background:var(--lime)}
.tag--blue{background:var(--blue);color:var(--white)}
.tag--ice{background:var(--ice)}

/* 栅格 */
.grid{display:grid;gap:20px}
.grid--2{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.grid--3{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.cols{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:24px}
.cols__main{grid-column:1 / span 7;min-width:0}
.cols__aside{grid-column:9 / span 3;min-width:0}

/* 长卷章节 */
.chapter{padding:clamp(48px,8vw,96px) 0;border-top:var(--bd) solid rgba(10,14,26,.12)}
.chapter--dark{background:var(--ink);color:var(--white);border-top-color:rgba(168,182,217,.2)}
.chapter--ice{background:var(--ice)}
.chapter__num{
  display:block;
  font-family:var(--font-display);
  font-size:clamp(2.6rem,6vw,5rem);
  font-weight:900;line-height:.9;letter-spacing:-.03em;
  color:var(--blue);opacity:.18;
  -webkit-text-stroke:1px var(--blue);
  transition:opacity var(--t-base) var(--ease);
}
.chapter.is-current .chapter__num{opacity:1;-webkit-text-stroke:1px var(--lime);color:var(--blue)}
.chapter__head{display:flex;flex-wrap:wrap;align-items:flex-end;gap:8px 20px;margin-bottom:16px}
.chapter__title{font-size:clamp(1.8rem,4vw,3.2rem)}
.chapter__lede{font-size:1.05rem;color:var(--muted);max-width:52ch;margin-top:14px}
.chapter--dark .chapter__lede{color:var(--steel)}
.chapter__body{margin-top:24px}

/* 卡片 */
.card{
  position:relative;
  background:var(--white);
  border:var(--bd) solid var(--ink);
  border-radius:var(--radius);
  box-shadow:var(--shadow-hard);
  padding:20px;
  transition:transform var(--t-fast) var(--ease),box-shadow var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease);
}
.card:hover,.card:focus-within{transform:translateY(-2px);box-shadow:var(--shadow-lift);border-color:var(--blue)}
.card__title{font-size:1.15rem;font-weight:900;letter-spacing:-.01em}
.card__meta{font-family:var(--font-mono);font-size:.78rem;color:var(--muted);letter-spacing:.02em}
.card__body{margin-top:10px;font-size:.95rem;color:var(--muted)}
.card__count{
  display:inline-block;margin-top:12px;
  font-family:var(--font-mono);font-size:.78rem;font-weight:700;
  color:var(--blue);background:var(--ice);padding:2px 8px;border-radius:2px;
  opacity:0;transform:translateY(4px);
  transition:opacity var(--t-fast) var(--ease),transform var(--t-fast) var(--ease);
}
.card:hover .card__count,.card:focus-within .card__count{opacity:1;transform:none}
.path-line{display:block;height:3px;background:var(--blue);transition:background-color var(--t-base) var(--ease)}
.card:hover .path-line{background:var(--lime)}

/* 状态面板 */
.status-panel{
  border:var(--bd) solid var(--ink);
  border-radius:var(--radius);
  background:var(--ice);
  overflow:hidden;
}
.status-panel__head{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:6px 16px;
  padding:10px 14px;
  background:var(--ink);color:var(--white);
  font-size:.75rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase;
}
.status-panel__row{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:6px 16px;
  padding:10px 14px;
  border-top:1px solid rgba(10,14,26,.14);
  font-size:.9rem;
}
.status-panel__label{color:var(--muted)}
.status-panel__value{font-family:var(--font-mono);font-weight:700;color:var(--ink)}

/* 数据 */
.stat{display:block}
.stat__num{
  display:inline-block;
  font-family:var(--font-mono);
  font-size:clamp(2.2rem,5vw,3.6rem);
  font-weight:800;line-height:1;letter-spacing:-.02em;
  border-bottom:4px solid var(--lime);
  padding-bottom:4px;
}
.stat__label{margin-top:8px;font-size:.85rem;color:var(--muted)}
.chapter--dark .stat__label,.section--dark .stat__label{color:var(--steel)}
.chapter--dark .stat__num,.section--dark .stat__num{color:var(--white)}

/* 折叠面板 */
.panel{border:var(--bd) solid var(--ink);border-radius:var(--radius);background:var(--white);box-shadow:var(--shadow-hard);overflow:hidden}
.panel__item+.panel__item{border-top:var(--bd) solid var(--ink)}
.panel__trigger{
  display:flex;align-items:baseline;gap:14px;width:100%;
  padding:16px 18px;text-align:left;
  font-size:1rem;font-weight:800;
  transition:background-color var(--t-fast) var(--ease);
}
.panel__trigger:hover{background:var(--ice)}
.panel__index{font-family:var(--font-mono);font-size:.82rem;font-weight:700;color:var(--blue);flex:none}
.panel__sign{
  margin-left:auto;flex:none;
  font-family:var(--font-mono);font-weight:700;color:var(--blue);
  transition:transform var(--t-base) var(--ease);
}
.panel__item[data-open="true"] .panel__sign{transform:rotate(45deg)}
.panel__item[data-open="true"] .panel__trigger{background:var(--ice)}
.panel__content{padding:0 18px 20px 52px;font-size:.95rem;color:var(--muted)}
.panel__content p+p{margin-top:.9em}

/* 提示块 */
.callout{
  border-left:6px solid var(--orange);
  background:var(--ice);
  padding:16px 20px;
  font-size:.95rem;
}
.callout--dark{background:rgba(0,87,255,.16);color:var(--white);border-left-color:var(--lime)}

/* 图片容器 */
.media-frame{
  position:relative;
  border:3px solid var(--ink);
  border-radius:var(--radius);
  box-shadow:var(--shadow-hard);
  background:var(--ice);
  overflow:hidden;
}
.media-frame>*{width:100%;height:100%;object-fit:cover;display:block}
.media-frame--16x9{aspect-ratio:16 / 9}
.media-frame--4x3{aspect-ratio:4 / 3}
.media-frame--1x1{aspect-ratio:1 / 1}
.media-frame--tall{aspect-ratio:3 / 4}
.media-frame__caption{
  position:absolute;left:0;bottom:0;width:auto;height:auto;
  padding:6px 12px;background:var(--ink);color:var(--white);
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.04em;
}
.media-frame__badge{
  position:absolute;top:0;left:0;width:auto;height:auto;
  padding:4px 9px;background:var(--lime);color:var(--ink);
  font-size:.72rem;font-weight:900;letter-spacing:.04em;
}

/* 章节显现（仅用于装饰性编号与标题，正文不参与） */
.js-ready [data-reveal]{opacity:0;transform:translateY(16px)}
.js-ready [data-reveal].is-visible{
  opacity:1;transform:none;
  transition:opacity 240ms var(--ease),transform 240ms var(--ease);
}

/* 05 页头 ---------------------------------------------------------------- */
.site-header{
  --cmd-h:64px;
  position:sticky;top:0;z-index:80;
  background:var(--ink);
  color:var(--white);
  border-bottom:var(--bd) solid var(--blue);
  transition:box-shadow var(--t-base) var(--ease);
}
.site-header[data-stuck="true"]{
  --cmd-h:48px;
  box-shadow:0 6px 0 rgba(6,16,51,.9);
}
.skip-link{
  position:absolute;left:12px;top:-72px;z-index:120;
  padding:10px 16px;
  background:var(--lime);color:var(--ink);
  font-weight:900;font-size:.9rem;
  border:var(--bd) solid var(--ink);border-radius:var(--radius);
  transition:top var(--t-fast) var(--ease);
}
.skip-link:focus{top:10px}

.cmd-bar{
  width:100%;max-width:var(--shell);margin:0 auto;
  display:grid;grid-template-columns:auto minmax(0,1fr) auto;
  align-items:center;gap:18px;
  height:var(--cmd-h);
  padding:0 clamp(12px,3vw,28px);
  transition:height var(--t-base) var(--ease);
}

/* 品牌 */
.cmd-brand{display:inline-flex;align-items:center;gap:10px;min-width:0}
.cmd-brand__mark{
  display:grid;place-items:center;
  width:34px;height:34px;flex:none;
  background:var(--blue);color:var(--white);
  font-family:var(--font-display);font-size:1rem;font-weight:900;letter-spacing:.02em;
  border:var(--bd) solid var(--lime);border-radius:3px;
}
.cmd-brand__text{display:flex;flex-direction:column;min-width:0}
.cmd-brand__name{font-size:1rem;font-weight:900;line-height:1.15;letter-spacing:.02em;color:var(--white)}
.cmd-brand__line{font-size:.66rem;font-weight:700;letter-spacing:.2em;color:var(--lime);line-height:1.3}
.cmd-brand__dot{width:8px;height:8px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 3px rgba(180,255,57,.2);flex:none}

/* 主导航 */
.cmd-nav{display:flex;align-items:center;justify-content:center;gap:0;min-width:0}
.cmd-nav__list{display:flex;align-items:center;gap:2px;flex-wrap:nowrap;min-width:0}
.cmd-nav__link{
  position:relative;display:block;
  padding:8px 11px 10px;
  font-size:.9rem;font-weight:800;letter-spacing:.01em;
  color:var(--steel);white-space:nowrap;
  border-radius:2px;
  transition:color var(--t-fast) var(--ease),background-color var(--t-fast) var(--ease);
}
.cmd-nav__link::after{
  content:"";position:absolute;left:11px;right:11px;bottom:0;height:4px;
  background:transparent;
  transform:scaleX(.35);transform-origin:left center;
  transition:background-color var(--t-fast) var(--ease),transform var(--t-fast) var(--ease);
}
.cmd-nav__link:hover{color:var(--white);background:rgba(0,87,255,.24)}
.cmd-nav__link:hover::after{background:var(--blue);transform:scaleX(1)}
.cmd-nav__link[aria-current="page"]{color:var(--white)}
.cmd-nav__link[aria-current="page"]::after{background:var(--lime);transform:scaleX(1)}

.cmd-nav__utility{
  display:none;align-items:center;gap:2px;
  margin-left:14px;padding-left:14px;
  border-left:2px solid rgba(168,182,217,.28);
}
.cmd-nav__utility-link{
  display:block;padding:8px 10px;border-radius:2px;
  font-size:.82rem;font-weight:600;color:var(--steel);white-space:nowrap;
  transition:color var(--t-fast) var(--ease),background-color var(--t-fast) var(--ease);
}
.cmd-nav__utility-link:hover{color:var(--white);background:rgba(0,87,255,.24)}

/* 右侧操作 */
.cmd-actions{display:flex;align-items:center;gap:10px}
.cmd-actions .btn{white-space:nowrap}

/* 移动导航按钮 */
.nav-toggle{
  display:none;align-items:center;gap:8px;
  padding:8px 12px;
  border:var(--bd) solid var(--steel);border-radius:var(--radius);
  color:var(--white);font-size:.82rem;font-weight:800;
  transition:border-color var(--t-fast) var(--ease),color var(--t-fast) var(--ease);
}
.nav-toggle:hover{border-color:var(--lime);color:var(--lime)}
.nav-toggle__bars{position:relative;width:16px;height:2px;background:currentColor;flex:none}
.nav-toggle__bars::before,.nav-toggle__bars::after{
  content:"";position:absolute;left:0;width:16px;height:2px;background:currentColor;
  transition:transform var(--t-base) var(--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{transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{transform:translateY(-5px) rotate(-45deg)}

/* 状态带 */
.cmd-strip{
  width:100%;max-width:var(--shell);margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  height:30px;
  padding:0 clamp(12px,3vw,28px);
  border-top:1px solid rgba(168,182,217,.18);
  transition:height var(--t-base) var(--ease),opacity var(--t-base) var(--ease);
}
.site-header[data-stuck="true"] .cmd-strip{height:0;opacity:0;overflow:hidden;border-top-color:transparent}
.cmd-strip__status{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.02em;
  color:var(--steel);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.cmd-chapter{
  display:inline-flex;align-items:baseline;gap:8px;
  font-family:var(--font-mono);font-size:.72rem;color:var(--steel);
}
.cmd-chapter__label{letter-spacing:.16em}
.cmd-chapter__value{font-size:.95rem;font-weight:800;color:var(--lime)}

/* 进度线 */
.cmd-progress{height:3px;background:rgba(168,182,217,.16)}
.cmd-progress__bar{
  display:block;width:100%;height:100%;
  transform:scaleX(0);transform-origin:left center;
  background:linear-gradient(90deg,var(--blue) 0%,var(--cyan) 55%,var(--lime) 100%);
  transition:transform 120ms linear;
}

/* 06 页脚 ---------------------------------------------------------------- */
.site-footer{
  position:relative;
  overflow:hidden;
  background:var(--navy);
  color:var(--white);
  border-top:4px solid var(--lime);
}
.site-footer::before{
  content:"";position:absolute;inset:0;z-index:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(168,182,217,.08) 1px,transparent 1px),
    linear-gradient(90deg,rgba(168,182,217,.08) 1px,transparent 1px);
  background-size:48px 48px;
}
.footer-rail{
  position:relative;z-index:2;
  height:6px;
  background:linear-gradient(90deg,var(--blue) 0%,var(--cyan) 48%,var(--lime) 100%);
}
.footer-inner{
  position:relative;z-index:2;
  width:100%;max-width:var(--shell);margin:0 auto;
  padding:clamp(40px,6vw,72px) clamp(16px,4vw,40px) clamp(28px,4vw,44px);
  display:grid;
  grid-template-columns:minmax(200px,1fr) minmax(0,1.7fr) minmax(220px,1fr);
  gap:clamp(24px,4vw,56px);
}

.footer-brand__mark{
  display:grid;place-items:center;
  width:56px;height:56px;
  background:var(--blue);color:var(--white);
  font-family:var(--font-display);font-size:1.5rem;font-weight:900;
  border:var(--bd) solid var(--lime);border-radius:var(--radius);
  box-shadow:4px 4px 0 rgba(180,255,57,.35);
}
.footer-brand__name{margin-top:16px;font-size:1.35rem;font-weight:900;letter-spacing:.01em}
.footer-brand__line{margin-top:8px;font-size:.92rem;color:var(--steel);max-width:34ch}
.footer-status{display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:18px;font-family:var(--font-mono);font-size:.78rem;color:var(--steel)}
.footer-status__item{display:inline-flex;align-items:center;gap:8px}

.footer-cols{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.footer-col__title{
  margin-bottom:14px;
  font-size:.78rem;font-weight:900;letter-spacing:.16em;
  color:var(--lime);
}
.footer-col__link{
  display:inline-block;padding:5px 0;
  font-size:.9rem;color:#DBE3F5;
  border-bottom:1px solid transparent;
  transition:color var(--t-fast) var(--ease),transform var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease);
}
.footer-col__link:hover{color:var(--lime);transform:translateX(3px);border-bottom-color:var(--lime)}
.footer-col__link[aria-current="page"]{color:var(--lime);font-weight:800}

.footer-contact__title{
  margin-bottom:14px;
  font-size:.78rem;font-weight:900;letter-spacing:.16em;color:var(--lime);
}
.footer-contact__line{
  display:flex;flex-wrap:wrap;gap:4px 10px;
  padding:6px 0;
  font-size:.85rem;
  border-bottom:1px dashed rgba(168,182,217,.24);
}
.footer-contact__key{color:var(--steel);flex:none;min-width:64px}
.footer-contact__val{font-family:var(--font-mono);color:var(--white);word-break:break-all}
.footer-contact__note{margin-top:14px;font-size:.78rem;line-height:1.7;color:var(--steel);max-width:40ch}

.footer-base{
  position:relative;z-index:2;
  width:100%;max-width:var(--shell);margin:0 auto;
  padding:16px clamp(16px,4vw,40px) 32px;
  display:flex;flex-wrap:wrap;gap:8px 24px;align-items:center;justify-content:space-between;
  border-top:2px solid rgba(180,255,57,.35);
  font-family:var(--font-mono);font-size:.78rem;color:var(--steel);
}

.footer-region{
  position:absolute;right:0;bottom:0;z-index:1;
  width:min(460px,62%);height:190px;
  pointer-events:none;opacity:.55;
  transform:translateY(var(--region-shift,0px));
  transition:transform 240ms var(--ease);
}
.footer-region__waves{
  position:absolute;left:0;right:0;bottom:0;height:64px;
  background:repeating-linear-gradient(180deg,rgba(0,224,198,.45) 0 2px,transparent 2px 11px);
  transform:skewY(-3deg);
  -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 42%);
  mask-image:linear-gradient(90deg,transparent 0,#000 42%);
}
.footer-region__pavilion{
  position:absolute;right:40px;bottom:56px;
  width:150px;height:100px;
  background:linear-gradient(180deg,var(--cyan) 0%,rgba(0,224,198,.12) 100%);
  clip-path:polygon(
    50% 0%,56% 10%,78% 10%,74% 16%,64% 16%,
    72% 26%,86% 26%,82% 32%,70% 32%,
    74% 44%,92% 44%,88% 50%,74% 50%,
    78% 100%,22% 100%,26% 50%,12% 50%,8% 44%,26% 44%,
    30% 32%,18% 32%,14% 26%,28% 26%,
    36% 16%,26% 16%,22% 10%,44% 10%
  );
}

/* 07 响应式与偏好 -------------------------------------------------------- */
@media (min-width:1200px){
  .cmd-nav__utility{display:flex}
}

@media (max-width:1080px){
  .footer-inner{grid-template-columns:minmax(0,1fr)}
  .footer-cols{grid-template-columns:repeat(3,minmax(0,1fr))}
}

@media (max-width:980px){
  .cmd-bar{grid-template-columns:minmax(0,1fr) auto;gap:12px}
  .cmd-nav{
    position:fixed;
    inset:var(--cmd-h) 0 auto 0;
    display:block;
    padding:14px clamp(12px,4vw,24px) 22px;
    background:var(--navy);
    border-top:var(--bd) solid var(--blue);
    border-bottom:4px solid var(--lime);
    max-height:calc(100dvh - var(--cmd-h));
    overflow-y:auto;
    opacity:0;visibility:hidden;
    transform:translateY(-8px);
    transition:opacity 180ms var(--ease),transform 180ms var(--ease),visibility 180ms var(--ease);
  }
  .cmd-nav[data-open="true"]{opacity:1;visibility:visible;transform:none}
  .cmd-nav__list{flex-direction:column;align-items:stretch;gap:2px}
  .cmd-nav__link{
    padding:14px 14px;
    font-size:1rem;
    border-left:4px solid transparent;
    border-radius:2px;
  }
  .cmd-nav__link::after{display:none}
  .cmd-nav__link:hover{background:rgba(0,87,255,.22)}
  .cmd-nav__link[aria-current="page"]{
    background:rgba(0,87,255,.24);
    border-left-color:var(--lime);
    color:var(--white);
  }
  .cmd-nav__utility{
    display:flex;flex-direction:column;align-items:stretch;gap:2px;
    margin:14px 0 0;padding:14px 0 0;
    border-left:0;border-top:1px solid rgba(168,182,217,.24);
  }
  .cmd-nav__utility-link{padding:10px 14px;font-size:.9rem}
  .nav-toggle{display:inline-flex}
  .cmd-strip__status{display:none}
  .cmd-strip{justify-content:flex-end;height:26px}
  .cols__main,.cols__aside{grid-column:1 / -1}
}

@media (max-width:760px){
  .cmd-actions__link{display:none}
  .cmd-brand__dot{display:none}
  .footer-cols{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-region{width:80%;height:150px;opacity:.4}
  .footer-region__pavilion{right:16px;width:110px;height:76px}
}

@media (max-width:560px){
  :root{--stack:14px}
  .cmd-brand__line{display:none}
  .cmd-brand__mark{width:30px;height:30px;font-size:.9rem}
  .cmd-nav__link-label{font-size:.95rem}
  .footer-cols{grid-template-columns:minmax(0,1fr);gap:20px}
  .footer-base{flex-direction:column;align-items:flex-start;gap:6px}
  .media-frame__caption{font-size:.68rem}
}

@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;
  }
  .js-ready [data-reveal]{opacity:1;transform:none}
  .card:hover,.card:focus-within{transform:none}
  .card__count{transform:none}
  .footer-region{transform:none;transition:none}
  .cmd-progress__bar{transition:none}
}