/* ============================================================
   乐冠国际 Site Kit — /assets/site.css
   创意方向：深空指挥舱 Deep Space Command Deck
   ============================================================ */

:root{
  --lg-primary:#0A1A3F;
  --lg-primary-deep:#071031;
  --lg-gold:#C9A961;
  --lg-gold-bright:#E2C987;
  --lg-rock:#6B7280;
  --lg-moss:#3D8B61;
  --lg-clay:#B45D44;
  --lg-cream:#F5F0E8;
  --lg-deep:#1E1B4B;
  --lg-blue:#4A6CF7;
  --lg-text:#E8ECF4;
  --lg-text-dim:#9AA7B8;
  --lg-shadow:0 20px 60px rgba(3,8,24,.42);
  --lg-radius-s:12px;
  --lg-radius-m:18px;
  --lg-radius-l:28px;
  --lg-radius-pill:999px;
  --lg-container:1280px;
  --lg-header-h:64px;
  --lg-ease:cubic-bezier(.22,.61,.36,1);
}

/* ---------- 重置与基础排版 ---------- */
*,*::before,*::after{ box-sizing:border-box; }
*{ margin:0; padding:0; }

html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }

body{
  font-family:'Inter','Segoe UI',system-ui,-apple-system,'PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;
  font-size:16px; line-height:1.75;
  color:var(--lg-text);
  background-color:var(--lg-primary);
  background-image:
    radial-gradient(1000px 520px at 86% -8%, rgba(74,108,247,.16), transparent 60%),
    radial-gradient(800px 480px at -12% 28%, rgba(30,27,75,.75), transparent 62%);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

h1,h2,h3,h4,h5,h6{
  font-family:'Montserrat','Segoe UI',system-ui,'PingFang SC',sans-serif;
  font-weight:800; line-height:1.18; letter-spacing:-.01em;
  color:#fff; text-wrap:balance;
}
h1{ font-size:clamp(34px,5.5vw,58px); }
h2{ font-size:clamp(27px,4vw,44px); }
h3{ font-size:clamp(20px,2.4vw,28px); }
h4{ font-size:clamp(17px,1.6vw,21px); }

p{ margin:0 0 1em; }
p:last-child{ margin-bottom:0; }

a{ color:inherit; text-decoration:underline; text-decoration-thickness:1px; text-underline-offset:3px; transition:color .2s var(--lg-ease); }
a:hover{ color:var(--lg-gold); }

button{ font:inherit; color:inherit; background:none; border:none; cursor:pointer; }
img,svg{ max-width:100%; display:block; height:auto; }

:focus-visible{ outline:2px solid var(--lg-gold); outline-offset:3px; }

/* ---------- 跳过链接 ---------- */
.lg-skip{
  position:fixed; top:-72px; left:16px; z-index:400;
  display:inline-flex; align-items:center;
  background:linear-gradient(135deg,var(--lg-gold-bright),var(--lg-gold));
  color:var(--lg-primary);
  font-size:14px; font-weight:700;
  padding:10px 20px;
  border-radius:0 0 14px 14px;
  box-shadow:var(--lg-shadow);
  text-decoration:none;
  transition:top .25s var(--lg-ease);
}
.lg-skip:focus-visible{ top:0; border-radius:0 0 14px 14px; }

/* ---------- 顶部滚动进度线 ---------- */
.lg-progress{
  position:fixed; top:0; left:0; right:0; height:3px; z-index:350;
  background:rgba(255,255,255,.06);
  pointer-events:none;
}
.lg-progress::after{
  content:"";
  display:block; height:100%;
  background:linear-gradient(90deg,var(--lg-gold),var(--lg-blue) 75%,var(--lg-gold-bright));
  transform:scaleX(var(--lg-progress,0));
  transform-origin:0 50%;
  will-change:transform;
}

/* ---------- 紧凑命令栏头部 ---------- */
.lg-header{
  position:fixed; top:0; left:0; right:0; z-index:300;
  height:var(--lg-header-h);
  background:rgba(7,16,49,.86);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(201,169,97,.22);
}
.lg-header__inner{
  height:100%;
  display:flex; align-items:center; gap:14px;
}
.lg-header__brand{
  display:inline-flex; align-items:center; gap:10px;
  text-decoration:none; flex-shrink:0;
}
.lg-brand-mark{
  position:relative; display:inline-flex; align-items:center; justify-content:center;
  width:30px; height:30px; flex:none;
  background:linear-gradient(135deg,var(--lg-gold-bright),#a5833a 72%);
  border-radius:7px;
  transform:rotate(45deg);
  box-shadow:0 4px 14px rgba(201,169,97,.4);
}
.lg-brand-mark__core{
  width:11px; height:11px;
  background:var(--lg-primary);
  border-radius:3px;
}
.lg-brand-name{
  font-family:'Montserrat','Segoe UI',sans-serif;
  font-weight:800; font-size:19px; letter-spacing:.04em;
  color:#fff; white-space:nowrap;
}
.lg-nav{
  display:flex; align-items:center; gap:2px;
  margin:0 auto;
  padding:4px;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.06);
  border-radius:var(--lg-radius-pill);
}
.lg-nav__link{
  display:block;
  padding:7px 15px;
  font-family:'Montserrat','Segoe UI',sans-serif;
  font-size:13.5px; font-weight:600;
  color:rgba(232,236,244,.78);
  white-space:nowrap;
  text-decoration:none;
  border-radius:var(--lg-radius-pill);
  transition:color .2s var(--lg-ease),background .2s var(--lg-ease),box-shadow .2s var(--lg-ease);
}
.lg-nav__link:hover{ color:#fff; background:rgba(255,255,255,.08); }
.lg-nav__link[aria-current="page"]{
  color:var(--lg-primary);
  background:linear-gradient(135deg,#d9bc7f,var(--lg-gold));
  font-weight:700;
  box-shadow:0 2px 10px rgba(201,169,97,.35);
}
.lg-header__actions{
  display:flex; align-items:center; gap:8px; flex-shrink:0;
}

/* ---------- 通用按钮 ---------- */
.lg-btn{
  display:inline-flex; align-items:center; justify-content:center; gap:7px;
  font-family:'Montserrat','Segoe UI',sans-serif;
  font-weight:700; letter-spacing:.01em;
  line-height:1; white-space:nowrap;
  border:1px solid transparent; border-radius:var(--lg-radius-pill);
  text-decoration:none;
  transition:transform .2s var(--lg-ease),box-shadow .2s var(--lg-ease),background .2s var(--lg-ease),color .2s var(--lg-ease),border-color .2s var(--lg-ease);
}
.lg-btn:hover{ transform:translateY(-1px); }
.lg-btn:active{ transform:translateY(0); }
.lg-btn--gold{
  background:linear-gradient(135deg,#d9bc7f,var(--lg-gold) 55%,#b18f45);
  color:var(--lg-primary);
  box-shadow:0 6px 22px rgba(201,169,97,.28);
}
.lg-btn--gold:hover{ color:var(--lg-primary); box-shadow:0 10px 30px rgba(201,169,97,.42); }
.lg-btn--ghost{
  background:rgba(255,255,255,.04);
  border-color:rgba(255,255,255,.22);
  color:var(--lg-text);
}
.lg-btn--ghost:hover{ border-color:var(--lg-gold); color:var(--lg-gold); background:rgba(201,169,97,.08); }
.lg-btn--outline{
  background:transparent; border-color:var(--lg-gold); color:var(--lg-gold);
}
.lg-btn--outline:hover{ background:rgba(201,169,97,.1); color:var(--lg-gold-bright); }
.lg-btn--small{ padding:8px 16px; font-size:13px; }
.lg-btn--medium{ padding:11px 24px; font-size:14px; }
.lg-btn--large{ padding:15px 32px; font-size:16px; }
.lg-btn__icon{ font-size:15px; line-height:1; }
.lg-btn__text{ font-size:inherit; }
.lg-btn--fav[aria-pressed="true"]{
  background:linear-gradient(135deg,#d9bc7f,var(--lg-gold));
  color:var(--lg-primary); border-color:transparent;
}
.lg-btn--fav[aria-pressed="true"]:hover{ color:var(--lg-primary); border-color:transparent; }

/* ---------- 移动端导航开关 ---------- */
.lg-nav-toggle{
  position:relative; display:none;
  flex-direction:column; align-items:center; justify-content:center; gap:4px;
  width:44px; height:44px; flex:none;
  border:1px solid rgba(255,255,255,.2);
  border-radius:12px;
}
.lg-nav-toggle__bar{
  width:18px; height:2px;
  background:var(--lg-text);
  border-radius:2px;
  transition:transform .25s var(--lg-ease),opacity .2s var(--lg-ease);
}
.lg-nav-toggle[aria-expanded="true"] .lg-nav-toggle__bar:nth-child(1){ transform:translateY(6px) rotate(45deg); }
.lg-nav-toggle[aria-expanded="true"] .lg-nav-toggle__bar:nth-child(2){ opacity:0; }
.lg-nav-toggle[aria-expanded="true"] .lg-nav-toggle__bar:nth-child(3){ transform:translateY(-6px) rotate(-45deg); }
.lg-nav-toggle__label{
  position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden;
  clip:rect(0 0 0 0); white-space:nowrap; border:0;
}

/* ---------- 响应式头部 ---------- */
@media (max-width:1024px){
  .lg-nav__link{ padding:7px 11px; font-size:13px; }
}
@media (max-width:900px){
  .lg-nav-toggle{ display:inline-flex; }
  .lg-nav{
    position:fixed; top:var(--lg-header-h); left:12px; right:12px;
    flex-direction:column; align-items:stretch; gap:6px;
    margin:0; padding:14px;
    background:rgba(7,16,49,.97);
    border:1px solid rgba(201,169,97,.32);
    border-radius:18px;
    box-shadow:var(--lg-shadow);
    opacity:0; visibility:hidden; transform:translateY(-10px);
    transition:opacity .25s var(--lg-ease),transform .25s var(--lg-ease),visibility .25s;
  }
  .lg-nav[data-open]{ opacity:1; visibility:visible; transform:none; }
  .lg-nav__link{
    padding:12px 18px; font-size:15px; text-align:center;
    border-radius:12px;
  }
  .lg-nav__link[aria-current="page"]{ color:var(--lg-primary); }
}
@media (max-width:540px){
  .lg-header__inner{ gap:8px; }
  .lg-header__actions .lg-btn__text{ display:none; }
  .lg-btn--fav{ width:40px; padding:8px 0; }
}

/* ---------- 页脚 ---------- */
.lg-footer{
  position:relative; overflow:hidden;
  margin-top:clamp(80px,10vw,140px);
  background:
    radial-gradient(640px 320px at 82% -20px, rgba(74,108,247,.16), transparent 65%),
    radial-gradient(480px 300px at 4% 0%, rgba(201,169,97,.08), transparent 60%),
    linear-gradient(180deg,var(--lg-primary) 0%,var(--lg-primary-deep) 55%,#120F2E 100%);
  border-top:1px solid rgba(201,169,97,.35);
}
.lg-footer::before{
  content:"";
  position:absolute; top:0; left:0; right:0; height:2px;
  background:linear-gradient(90deg,transparent,var(--lg-gold) 20%,var(--lg-gold) 80%,transparent);
  opacity:.7;
}
.lg-footer__grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.35fr;
  gap:clamp(28px,5vw,64px);
  padding-top:clamp(56px,8vw,88px);
  padding-bottom:clamp(40px,6vw,64px);
}
.lg-footer__brand{ display:flex; flex-direction:column; align-items:flex-start; gap:18px; }
.lg-footer__logo{ display:inline-flex; align-items:center; gap:10px; text-decoration:none; }
.lg-footer__about{ font-size:14.5px; line-height:1.8; color:rgba(232,236,244,.72); max-width:34ch; }
.lg-footer__col{ display:flex; flex-direction:column; gap:14px; }
.lg-footer__heading{
  position:relative;
  font-family:'Montserrat','Segoe UI',sans-serif;
  font-size:12.5px; font-weight:700; letter-spacing:.2em;
  color:var(--lg-gold); text-transform:uppercase;
  padding-bottom:10px; margin-bottom:2px;
}
.lg-footer__heading::after{
  content:"";
  display:block; width:26px; height:2px; margin-top:10px;
  background:linear-gradient(90deg,var(--lg-gold),transparent);
  border-radius:2px;
}
.lg-footer__links,
.lg-footer__contact{
  list-style:none; padding:0; margin:0;
  display:flex; flex-direction:column; gap:10px;
}
.lg-footer__link{
  color:rgba(232,236,244,.74);
  font-size:14.5px;
  text-decoration:none;
  transition:color .2s var(--lg-ease),padding-left .2s var(--lg-ease);
}
.lg-footer__link:hover{ color:var(--lg-gold); padding-left:4px; }
.lg-footer__contact{ gap:12px; }
.lg-footer__contact-item{ display:flex; flex-direction:column; gap:2px; }
.lg-footer__contact-label{ font-size:12px; letter-spacing:.12em; color:var(--lg-rock); }
.lg-footer__contact-value{ font-size:14px; color:var(--lg-text); word-break:break-word; }
.lg-footer__bottom{
  display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:8px 24px;
  padding:20px 0 24px;
  border-top:1px solid rgba(255,255,255,.08);
  font-size:13px; color:var(--lg-text-dim);
}
.lg-footer__copyright,.lg-footer__icp{ margin:0; }
.lg-footer__icp{ color:var(--lg-text-dim); }

@media (max-width:960px){
  .lg-footer__grid{ grid-template-columns:1fr 1fr; }
}
@media (max-width:560px){
  .lg-footer__grid{ grid-template-columns:1fr; gap:32px; }
  .lg-footer__bottom{ justify-content:center; text-align:center; }
}

/* ---------- Toast 与返回顶部 ---------- */
.lg-toast{
  position:fixed; left:50%; bottom:28px; z-index:500;
  transform:translateX(-50%) translateY(18px);
  max-width:min(92vw,480px);
  background:var(--lg-cream); color:var(--lg-primary);
  font-size:14px; font-weight:600; line-height:1.5; text-align:center;
  padding:12px 22px; border-radius:var(--lg-radius-pill);
  box-shadow:0 16px 44px rgba(3,8,24,.5);
  opacity:0; visibility:hidden;
  transition:opacity .28s var(--lg-ease),transform .28s var(--lg-ease),visibility .28s;
}
.lg-toast.is-visible{ opacity:1; visibility:visible; transform:translateX(-50%) translateY(0); }
.lg-backtop{
  position:fixed; right:26px; bottom:26px; z-index:400;
  display:flex; align-items:center; justify-content:center;
  width:46px; height:46px;
  font-size:20px;
  background:rgba(7,16,49,.92); color:var(--lg-gold);
  border:1px solid rgba(201,169,97,.55);
  border-radius:50%;
  box-shadow:0 10px 28px rgba(3,8,24,.45);
  opacity:0; visibility:hidden; transform:translateY(10px);
  transition:opacity .25s var(--lg-ease),transform .25s var(--lg-ease),visibility .25s,background .2s var(--lg-ease),color .2s var(--lg-ease);
}
.lg-backtop.is-visible{ opacity:1; visibility:visible; transform:none; }
.lg-backtop:hover{ background:var(--lg-gold); color:var(--lg-primary); }

/* ---------- 共享布局组件 ---------- */
.lg-container{ width:100%; max-width:var(--lg-container); margin-inline:auto; padding-inline:clamp(20px,4vw,48px); }
.lg-main{ position:relative; }
#main-content{ scroll-margin-top:calc(var(--lg-header-h) + 8px); }

.lg-section{ position:relative; padding-block:clamp(56px,9vw,112px); }
.lg-kicker{
  display:inline-flex; align-items:center; gap:10px;
  font-family:'Montserrat','Segoe UI',sans-serif;
  font-size:12.5px; font-weight:700; letter-spacing:.22em;
  color:var(--lg-gold); text-transform:uppercase;
}
.lg-kicker::before{
  content:""; width:26px; height:2px; flex:none;
  background:var(--lg-gold); border-radius:2px;
}
.lg-lead{ font-size:17px; line-height:1.85; color:rgba(232,236,244,.82); max-width:64ch; }

.lg-grid{ display:grid; gap:24px; }
.lg-grid--2{ grid-template-columns:repeat(2,minmax(0,1fr)); }
.lg-grid--3{ grid-template-columns:repeat(3,minmax(0,1fr)); }

.lg-card{
  background:linear-gradient(150deg,rgba(255,255,255,.07),rgba(255,255,255,.03));
  border:1px solid rgba(255,255,255,.09);
  border-radius:var(--lg-radius-l);
  padding:clamp(22px,3vw,34px);
  transition:transform .25s var(--lg-ease),border-color .25s var(--lg-ease),box-shadow .25s var(--lg-ease);
}
.lg-card:hover{
  transform:translateY(-4px);
  border-color:rgba(201,169,97,.5);
  box-shadow:0 18px 44px rgba(3,8,24,.4);
}
.lg-card--cream{
  background:var(--lg-cream);
  border-color:transparent;
  color:var(--lg-primary);
}
.lg-card--cream h3,.lg-card--cream h4{ color:var(--lg-primary); }
.lg-card--cream .lg-lead{ color:rgba(10,26,63,.78); }
.lg-card--cream p{ color:rgba(10,26,63,.8); }

.lg-frame{
  position:relative; overflow:hidden;
  padding:clamp(24px,4vw,44px);
  border:1px solid rgba(201,169,97,.32);
  border-radius:22px;
  background:linear-gradient(140deg,rgba(30,27,75,.55),rgba(10,26,63,.35));
}
.lg-frame::before,.lg-frame::after{
  content:""; position:absolute; width:30px; height:30px; pointer-events:none;
}
.lg-frame::before{ top:-1px; left:-1px; border-top:2px solid var(--lg-gold); border-left:2px solid var(--lg-gold); border-top-left-radius:22px; }
.lg-frame::after{ bottom:-1px; right:-1px; border-bottom:2px solid var(--lg-gold); border-right:2px solid var(--lg-gold); border-bottom-right-radius:22px; }

.lg-breadcrumb{ margin-bottom:28px; }
.lg-breadcrumb__list{
  display:flex; flex-wrap:wrap; align-items:center; gap:4px;
  list-style:none; padding:0; margin:0;
  font-size:13px; color:var(--lg-text-dim);
}
.lg-breadcrumb__item{ display:inline-flex; align-items:center; gap:4px; }
.lg-breadcrumb__item + .lg-breadcrumb__item::before{ content:"/"; color:rgba(255,255,255,.28); }
.lg-breadcrumb__link{ color:inherit; text-decoration:none; }
.lg-breadcrumb__link:hover{ color:var(--lg-gold); }
.lg-breadcrumb__current{ color:var(--lg-gold); font-weight:500; }

.lg-media{
  position:relative; overflow:hidden;
  aspect-ratio:16/9;
  border-radius:var(--lg-radius-m);
  border:1px solid rgba(255,255,255,.08);
  background:linear-gradient(135deg,rgba(74,108,247,.22),rgba(30,27,75,.55));
}
.lg-media > img{ width:100%; height:100%; object-fit:cover; }
.lg-media--4-3{ aspect-ratio:4/3; }
.lg-media--square{ aspect-ratio:1/1; }
.lg-media--tall{ aspect-ratio:3/4; }

.lg-divider{
  height:1px; border:0; margin:clamp(40px,6vw,72px) 0;
  background:linear-gradient(90deg,transparent,rgba(201,169,97,.45),transparent);
}

.lg-num{
  font-family:'Montserrat','Segoe UI',sans-serif;
  font-weight:800; font-variant-numeric:tabular-nums;
  color:var(--lg-gold);
}

.lg-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;
}

@media (max-width:860px){
  .lg-grid--2,.lg-grid--3{ grid-template-columns:minmax(0,1fr); }
}
@media (min-width:861px) and (max-width:1100px){
  .lg-grid--3{ grid-template-columns:repeat(2,minmax(0,1fr)); }
}

@media (prefers-reduced-motion:reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
  }
}