/* ==========================================================================
   乐冠空间 · 共享样式表 /assets/site.css
   基因：海报式分层构图 · 雾都灰蓝场域 · 玻璃导航层 · 实色内容层 · 数据锚点
   ========================================================================== */

:root{
  /* 品牌色 */
  --lg-fog:#2E3A46;
  --lg-ink:#141C24;
  --lg-red:#D8322C;
  --lg-gold:#E3A64A;
  --lg-teal:#12B39B;
  --lg-orange:#F2622A;
  --lg-white:#F4F6F7;
  --lg-grey:#8A939C;
  --lg-mist:#C9D4DD;
  --lg-forest:#0E5B52;

  /* 语义色 */
  --lg-text:#E9EFF3;
  --lg-text-soft:#B9C6D0;
  --lg-ink-text:#3C4854;
  --lg-line:rgba(201,212,221,.16);
  --lg-line-strong:rgba(201,212,221,.30);

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

  /* 度量 */
  --lg-wrap:1240px;
  --lg-gutter:clamp(20px,5vw,56px);
  --lg-section:clamp(56px,9vw,128px);
  --lg-radius:2px;
}

/* --------------------------------------------------------- reset */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--lg-font-sans);
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  color:var(--lg-text);
  background-color:var(--lg-fog);
  background-image:
    radial-gradient(900px 520px at 12% -8%,rgba(227,166,74,.12),transparent 62%),
    radial-gradient(760px 460px at 100% 2%,rgba(18,179,155,.10),transparent 58%),
    linear-gradient(180deg,rgba(20,28,36,.40),rgba(46,58,70,0) 42%);
  background-repeat:no-repeat;
  background-position:top left,top right,top center;
}
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%}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
::selection{background:var(--lg-red);color:#fff}
:focus-visible{outline:2px solid var(--lg-gold);outline-offset:3px}
body.lg-nav-open{overflow:hidden}

/* --------------------------------------------------------- 排版原子 */
.lg-display{font-weight:200;font-size:clamp(48px,9vw,120px);line-height:.95;letter-spacing:.01em}
.lg-headline{font-weight:700;font-size:clamp(22px,3vw,40px);line-height:1.28;letter-spacing:.01em}
.lg-lead{font-size:clamp(17px,1.6vw,21px);line-height:1.7;font-weight:300;color:var(--lg-mist)}
.lg-text-muted{color:var(--lg-grey)}
.lg-index{font-family:var(--lg-font-mono);font-size:11px;font-weight:500;letter-spacing:.12em;text-transform:uppercase;color:var(--lg-grey)}
.lg-num{font-family:var(--lg-font-mono);font-variant-numeric:tabular-nums;letter-spacing:.01em}
.lg-divider{height:1px;border:0;margin:0;background:var(--lg-line)}

/* --------------------------------------------------------- 布局骨架 */
.lg-container{width:100%;max-width:var(--lg-wrap);margin-inline:auto;padding-inline:var(--lg-gutter)}
.lg-container--narrow{max-width:840px}
.lg-section{position:relative;padding-block:var(--lg-section)}
.lg-section--fog{background:var(--lg-fog)}
.lg-section--ink{background:var(--lg-ink)}
.lg-section--white{background:var(--lg-white);color:var(--lg-ink)}
.lg-section--white .lg-index{color:#6B7683}
.lg-section--white .lg-lead{color:#46525E}
.lg-section--glass{
  background:rgba(201,212,221,.06);
  border-block:1px solid var(--lg-line);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
}
.lg-section-head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:14px 32px;margin-bottom:clamp(28px,4vw,56px);padding-bottom:16px;
  border-bottom:1px solid var(--lg-line);
}
.lg-section-head__title{font-weight:700;font-size:clamp(20px,2.4vw,32px);line-height:1.3}
.lg-section-head__note{font-family:var(--lg-font-mono);font-size:11px;letter-spacing:.12em;color:var(--lg-grey)}

.lg-grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:clamp(20px,3vw,36px)}
.lg-span-3{grid-column:span 3}
.lg-span-4{grid-column:span 4}
.lg-span-5{grid-column:span 5}
.lg-span-6{grid-column:span 6}
.lg-span-7{grid-column:span 7}
.lg-span-8{grid-column:span 8}
.lg-span-12{grid-column:span 12}
.lg-span-full{grid-column:1/-1}

/* --------------------------------------------------------- 媒体容器 */
.lg-media{
  position:relative;overflow:hidden;border-radius:var(--lg-radius);
  aspect-ratio:16/9;border:1px solid var(--lg-line);background-color:#1B242D;
  background-image:
    repeating-linear-gradient(0deg,rgba(201,212,221,.07) 0 1px,transparent 1px 32px),
    repeating-linear-gradient(90deg,rgba(201,212,221,.07) 0 1px,transparent 1px 32px),
    linear-gradient(150deg,rgba(46,58,70,.92),rgba(20,28,36,.96));
}
.lg-media__img{width:100%;height:100%;object-fit:cover}
.lg-media--wide{aspect-ratio:21/9}
.lg-media--photo{aspect-ratio:4/3}
.lg-media--square{aspect-ratio:1/1}
.lg-media--tall{aspect-ratio:3/4}
.lg-media__caption{
  position:absolute;left:0;right:0;bottom:0;padding:12px 16px;
  background:linear-gradient(180deg,transparent,rgba(20,28,36,.88));
  font-family:var(--lg-font-mono);font-size:11px;letter-spacing:.12em;color:var(--lg-mist);
}

/* --------------------------------------------------------- 卡片 / 数值 / 按钮 */
.lg-card{
  background:var(--lg-white);color:var(--lg-ink);border:1px solid var(--lg-mist);
  border-radius:var(--lg-radius);padding:clamp(20px,3vw,32px);
  transition:border-color .28s ease,background-color .28s ease,transform .28s ease;
}
.lg-card:hover{border-color:var(--lg-red)}
.lg-card:focus-within{border-color:var(--lg-red)}
.lg-card--dark{background:rgba(20,28,36,.62);color:var(--lg-text);border-color:var(--lg-line)}
.lg-card--dark:hover{border-color:var(--lg-gold)}
.lg-card--glass{
  background:rgba(244,246,247,.07);color:var(--lg-text);border-color:var(--lg-line-strong);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
}
.lg-card__title{font-size:clamp(18px,2vw,24px);font-weight:700;line-height:1.35;margin-bottom:10px}
.lg-card__body{font-size:15px;line-height:1.75;color:var(--lg-ink-text)}
.lg-card--dark .lg-card__body,.lg-card--glass .lg-card__body{color:var(--lg-text-soft)}
.lg-card__meta{margin-top:14px;font-family:var(--lg-font-mono);font-size:11px;letter-spacing:.12em;color:var(--lg-grey)}

.lg-stat{display:block}
.lg-stat__value{
  display:block;font-family:var(--lg-font-mono);font-weight:300;
  font-size:clamp(38px,6vw,88px);line-height:1;letter-spacing:-.01em;
}
.lg-stat__value--red{color:var(--lg-red)}
.lg-stat__value--gold{color:var(--lg-gold)}
.lg-stat__value--teal{color:var(--lg-teal)}
.lg-stat__value--orange{color:var(--lg-orange)}
.lg-stat__label{display:block;margin-top:12px;font-family:var(--lg-font-mono);font-size:11px;letter-spacing:.12em;color:var(--lg-grey)}

.lg-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  min-height:46px;padding:12px 26px;border-radius:var(--lg-radius);
  border:1px solid var(--lg-red);background:var(--lg-red);color:#fff;
  font-size:14px;font-weight:600;letter-spacing:.08em;line-height:1.2;
  transition:background-color .25s ease,color .25s ease,border-color .25s ease;
}
.lg-btn:hover,.lg-btn:focus-visible{background:transparent;color:var(--lg-white);border-color:var(--lg-white)}
.lg-btn--ghost{background:transparent;color:var(--lg-white);border-color:var(--lg-line-strong)}
.lg-btn--ghost:hover,.lg-btn--ghost:focus-visible{background:transparent;border-color:var(--lg-red);color:var(--lg-red)}

.lg-chip{
  display:inline-flex;align-items:center;gap:8px;padding:5px 12px;
  border:1px solid var(--lg-line-strong);border-radius:99px;
  background:rgba(201,212,221,.06);color:var(--lg-mist);
  font-family:var(--lg-font-mono);font-size:11px;letter-spacing:.12em;
}
.lg-chip--red{border-color:rgba(216,50,44,.55);color:#F09A96}
.lg-chip--gold{border-color:rgba(227,166,74,.55);color:var(--lg-gold)}
.lg-chip--teal{border-color:rgba(18,179,155,.55);color:#63D9C8}
.lg-chip--orange{border-color:rgba(242,98,42,.55);color:#F79A73}

/* --------------------------------------------------------- 面包屑 */
.lg-breadcrumb{font-size:12px;letter-spacing:.12em;color:var(--lg-grey)}
.lg-breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.lg-breadcrumb li{display:flex;align-items:center;gap:8px}
.lg-breadcrumb li+li::before{content:"/";color:rgba(201,212,221,.38)}
.lg-breadcrumb a{color:var(--lg-mist);transition:color .25s ease}
.lg-breadcrumb a:hover{color:var(--lg-gold)}
.lg-breadcrumb [aria-current="page"]{color:var(--lg-white)}

/* --------------------------------------------------------- 进度条 / 数据条 */
.lg-meter{
  display:block;width:100%;height:8px;border-radius:99px;overflow:hidden;
  background:rgba(201,212,221,.16);
}
.lg-meter__fill{
  display:block;height:100%;width:var(--lg-value,0%);
  border-radius:99px;background:var(--lg-teal);
  transition:width .9s cubic-bezier(.22,.61,.36,1);
}
.lg-meter--orange .lg-meter__fill{background:var(--lg-orange)}
.lg-meter--gold .lg-meter__fill{background:var(--lg-gold)}
.lg-meter--red .lg-meter__fill{background:var(--lg-red)}

/* --------------------------------------------------------- 跳转链接 */
.lg-skip{
  position:absolute;left:var(--lg-gutter);top:10px;z-index:200;
  transform:translateY(-260%);padding:10px 18px;border-radius:var(--lg-radius);
  background:var(--lg-red);color:#fff;font-size:13px;letter-spacing:.08em;
  transition:transform .2s ease;
}
.lg-skip:focus{transform:translateY(0)}

/* --------------------------------------------------------- 头部刊头 */
.lg-header{
  position:sticky;top:0;z-index:100;
  background:rgba(20,28,36,.82);
  border-bottom:1px solid var(--lg-line);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  transition:background-color .3s ease,border-color .3s ease;
}
.lg-header[data-scrolled="true"]{background:rgba(20,28,36,.95);border-bottom-color:var(--lg-line-strong)}
.lg-header__inner{padding-block:clamp(14px,1.8vw,22px) 0}

.lg-progress{
  position:fixed;top:0;left:0;right:0;height:2px;z-index:140;
  background:rgba(201,212,221,.12);pointer-events:none;
}
.lg-progress__bar{
  display:block;width:100%;height:100%;transform:scaleX(0);transform-origin:left center;
  background:linear-gradient(90deg,var(--lg-red),var(--lg-gold));
}

.lg-masthead{display:grid;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);align-items:center;gap:16px}
.lg-masthead__meta{font-size:11px;line-height:1.5;color:var(--lg-grey);text-align:left}
.lg-masthead__meta--end{text-align:right}
.lg-masthead__dot{color:var(--lg-red)}

.lg-brand{grid-column:2;display:flex;flex-direction:column;align-items:center;gap:4px}
.lg-brand__line{
  font-size:clamp(24px,3.4vw,40px);font-weight:200;line-height:1.1;
  letter-spacing:.24em;color:var(--lg-white);transition:color .25s ease;
}
.lg-brand:hover .lg-brand__line{color:var(--lg-gold)}
.lg-brand__tagline{display:block;text-align:center;font-size:11px}

.lg-masthead__actions{display:flex;align-items:center;justify-content:flex-end;gap:14px;justify-self:end}

.lg-nav-toggle{
  display:none;align-items:center;gap:10px;padding:10px 12px;
  border:1px solid var(--lg-line-strong);border-radius:var(--lg-radius);
  background:rgba(201,212,221,.05);color:var(--lg-white);
  transition:border-color .25s ease,background-color .25s ease;
}
.lg-nav-toggle:hover{border-color:var(--lg-red);background:rgba(216,50,44,.10)}
.lg-nav-toggle__bars{position:relative;display:block;width:22px;height:2px;background:var(--lg-white);transition:background-color .2s ease}
.lg-nav-toggle__bars::before,
.lg-nav-toggle__bars::after{
  content:"";position:absolute;left:0;width:22px;height:2px;background:var(--lg-white);
  transition:transform .25s ease,background-color .25s ease;
}
.lg-nav-toggle__bars::before{top:-7px}
.lg-nav-toggle__bars::after{top:7px}
.lg-nav-toggle[aria-expanded="true"] .lg-nav-toggle__bars{background:transparent}
.lg-nav-toggle[aria-expanded="true"] .lg-nav-toggle__bars::before{transform:translateY(7px) rotate(45deg);background:var(--lg-red)}
.lg-nav-toggle[aria-expanded="true"] .lg-nav-toggle__bars::after{transform:translateY(-7px) rotate(-45deg);background:var(--lg-red)}
.lg-nav-toggle__text{font-size:11px}

.lg-nav{border-top:1px solid var(--lg-line);margin-top:clamp(12px,1.6vw,18px)}
.lg-nav__list{display:flex;flex-wrap:wrap;justify-content:center;gap:clamp(4px,2.4vw,34px)}
.lg-nav__item{display:flex}
.lg-nav__link{
  position:relative;display:flex;align-items:baseline;gap:8px;
  padding:14px 2px 16px;color:var(--lg-mist);font-size:15px;letter-spacing:.06em;
  transition:color .25s ease;
}
.lg-nav__link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--lg-gold);
  transform:scaleX(0);transform-origin:left center;
  transition:transform .3s cubic-bezier(.22,.61,.36,1),background-color .25s ease;
}
.lg-nav__link:hover{color:var(--lg-white)}
.lg-nav__link:hover::after,
.lg-nav__link:focus-visible::after{transform:scaleX(1)}
.lg-nav__link[aria-current="page"]{color:var(--lg-white);font-weight:600}
.lg-nav__link[aria-current="page"]::after{height:3px;background:var(--lg-red);transform:scaleX(1)}
.lg-nav__index{
  font-family:var(--lg-font-mono);font-size:11px;letter-spacing:.12em;
  color:var(--lg-grey);transition:color .25s ease;
}
.lg-nav__link:hover .lg-nav__index,
.lg-nav__link[aria-current="page"] .lg-nav__index{color:var(--lg-gold)}

/* --------------------------------------------------------- 页脚 */
.lg-footer{
  position:relative;margin-top:0;padding-top:clamp(48px,7vw,88px);
  background:var(--lg-ink);color:var(--lg-text);
  border-top:1px solid var(--lg-line);overflow:hidden;
}
.lg-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    repeating-linear-gradient(0deg,rgba(201,212,221,.05) 0 1px,transparent 1px 40px),
    repeating-linear-gradient(90deg,rgba(201,212,221,.05) 0 1px,transparent 1px 40px);
  opacity:.55;
}
.lg-footer__inner{position:relative;z-index:1}

.lg-footer__top{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:24px;padding-bottom:clamp(20px,3vw,32px);border-bottom:1px solid var(--lg-line);
}
.lg-footer__ghost{
  font-size:clamp(40px,10vw,118px);font-weight:200;line-height:1;
  letter-spacing:.14em;color:rgba(201,212,221,.14);user-select:none;
}
.lg-footer__status-wrap{display:flex;flex-direction:column;align-items:flex-start;gap:14px}
.lg-footer__status{color:var(--lg-gold)}

.lg-footer__grid{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr)) minmax(240px,1.35fr);
  gap:clamp(24px,4vw,48px);padding-block:clamp(32px,5vw,56px);
}
.lg-footer__col{min-width:0}
.lg-footer__title{
  font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--lg-white);
  padding-bottom:10px;margin-bottom:16px;border-bottom:1px solid var(--lg-line);
}
.lg-footer__list li+li{margin-top:10px}
.lg-footer__link{
  position:relative;display:inline-block;padding-bottom:3px;
  color:var(--lg-mist);font-size:14px;transition:color .25s ease;
}
.lg-footer__link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--lg-gold);
  transform:scaleX(0);transform-origin:left center;transition:transform .28s ease;
}
.lg-footer__link:hover,.lg-footer__link:focus-visible{color:var(--lg-white)}
.lg-footer__link:hover::after,.lg-footer__link:focus-visible::after{transform:scaleX(1)}
.lg-footer__contact-line{font-size:14px;color:var(--lg-mist);margin-bottom:8px}
.lg-footer__contact-line .lg-num{color:var(--lg-white)}
.lg-footer__note{margin-top:12px;font-size:13px;line-height:1.7;color:rgba(201,212,221,.62)}
.lg-footer__bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px 24px;
  padding-block:20px 28px;border-top:1px solid var(--lg-line);
  font-family:var(--lg-font-mono);font-size:12px;letter-spacing:.06em;color:rgba(201,212,221,.58);
}
.lg-footer__legal,.lg-footer__icp{margin:0}

/* --------------------------------------------------------- 响应式 */
@media (max-width:1080px){
  .lg-footer__grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .lg-footer__contact{grid-column:1/-1}
}
@media (max-width:900px){
  .lg-masthead{grid-template-columns:1fr auto;gap:10px}
  .lg-masthead__meta{display:none}
  .lg-brand{grid-column:1;align-items:flex-start}
  .lg-brand__tagline{text-align:left}
  .lg-masthead__actions{grid-column:2;align-items:center}
  .lg-nav-toggle{display:inline-flex}

  .lg-nav{
    position:absolute;left:0;right:0;top:100%;margin-top:0;
    max-height:0;overflow:hidden;visibility:hidden;
    background:rgba(20,28,36,.97);
    border-top:1px solid var(--lg-line);border-bottom:1px solid var(--lg-line-strong);
    -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
    transition:max-height .32s ease,visibility .32s ease;
  }
  .lg-header[data-open="true"] .lg-nav{max-height:min(76vh,520px);overflow-y:auto;visibility:visible}
  .lg-nav__list{flex-direction:column;gap:0;padding:6px var(--lg-gutter) 22px}
  .lg-nav__item{width:100%}
  .lg-nav__link{
    width:100%;justify-content:flex-start;padding:16px 0;
    border-bottom:1px solid var(--lg-line);font-size:16px;
  }
  .lg-nav__link::after,.lg-nav__link[aria-current="page"]::after{width:52px;right:auto;height:3px}
  .lg-nav__index{min-width:26px}

  .lg-grid>[class*="lg-span-"]{grid-column:1/-1}
}
@media (max-width:620px){
  .lg-footer__grid{grid-template-columns:minmax(0,1fr)}
  .lg-footer__top{align-items:flex-start}
  .lg-footer__ghost{font-size:clamp(36px,14vw,64px)}
  .lg-footer__bottom{justify-content:flex-start}
  .lg-stat__value{font-size:clamp(34px,11vw,56px)}
}

/* --------------------------------------------------------- 无障碍偏好 */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .lg-meter__fill{transition:none}
}