/* /assets/site.css */
:root{
  --c-primary:#1B2A4A;
  --c-accent:#C6FF00;
  --c-orange:#FF6B35;
  --c-deep:#0D1526;
  --c-rock:#3A4A63;
  --c-cream:#F5F7FA;
  --c-moss:#4E7354;
  --c-terra:#C77B55;
  --font-head:"Oswald","Anton","Arial Narrow","Noto Sans SC",sans-serif;
  --font-body:"Inter","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-data:"Roboto Mono","SFMono-Regular","Consolas","Noto Sans SC",monospace;
  --container:1200px;
  --header-h:76px;
  --radius:6px;
  --shadow:0 18px 50px rgba(0,0,0,.28);
  --ease:cubic-bezier(.2,.8,.2,1);
}
*,
*::before,
*::after{
  box-sizing:border-box;
}
html{
  background:var(--c-deep);
  scroll-behavior:smooth;
}
body{
  margin:0;
  background:
    radial-gradient(circle at 80% 0%, rgba(27,42,74,.72), transparent 46%),
    var(--c-deep);
  color:var(--c-cream);
  font-family:var(--font-body);
  line-height:1.6;
}
h1,h2,h3,h4,p,ul,ol,address,blockquote{
  margin:0;
}
ul,ol{
  padding:0;
  list-style:none;
}
a{
  color:inherit;
  text-decoration:none;
}
button{
  border:0;
  background:none;
  color:inherit;
  font:inherit;
  cursor:pointer;
}
img{
  display:block;
  max-width:100%;
}
::selection{
  background:var(--c-accent);
  color:var(--c-deep);
}
:focus-visible{
  outline:2px solid var(--c-accent);
  outline-offset:3px;
}
#main-content{
  scroll-margin-top:calc(var(--header-h) + 20px);
}
.site-main{
  min-height:70vh;
  padding-top:calc(var(--header-h) + 16px);
  overflow:hidden;
}

/* 通用容器与区块 */
.container{
  width:min(100% - 40px, var(--container));
  margin-inline:auto;
}
.section{
  position:relative;
  padding:72px 0;
}
.section--deep{
  background:linear-gradient(180deg, var(--c-deep), rgba(27,42,74,.55));
}
.section--primary{
  background:var(--c-primary);
}
.section--accent{
  border-block:1px solid var(--c-rock);
  background:
    linear-gradient(135deg, rgba(198,255,0,.05), transparent 42%),
    var(--c-deep);
}
.section__head{
  display:flex;
  align-items:end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:36px;
}
.section-title{
  color:var(--c-cream);
  font-family:var(--font-head);
  font-size:clamp(32px, 5vw, 56px);
  font-weight:700;
  line-height:.95;
  letter-spacing:.01em;
  text-transform:uppercase;
}
.section-title--orange{
  color:var(--c-orange);
}
.section-sub{
  display:block;
  margin-bottom:10px;
  color:var(--c-rock);
  font-family:var(--font-data);
  font-size:12px;
  letter-spacing:.14em;
  text-transform:uppercase;
}
.section-lead{
  max-width:62ch;
  color:#b7c2d2;
  font-size:15px;
}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:13px 26px;
  border:1px solid var(--c-accent);
  border-radius:var(--radius);
  background:rgba(27,42,74,.82);
  color:var(--c-cream);
  font-weight:700;
  letter-spacing:.04em;
  transition:background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease), transform .2s var(--ease);
}
.btn:hover{
  border-color:var(--c-accent);
  background:var(--c-accent);
  color:var(--c-deep);
  transform:translateY(-2px);
}
.btn--primary{
  background:var(--c-accent);
  border-color:var(--c-accent);
  color:var(--c-deep);
}
.btn--primary:hover{
  background:var(--c-orange);
  border-color:var(--c-orange);
  color:var(--c-deep);
}
.btn--ghost{
  background:transparent;
  border-color:var(--c-rock);
  color:var(--c-cream);
}
.btn--ghost:hover{
  border-color:var(--c-accent);
  background:rgba(198,255,0,.08);
  color:var(--c-accent);
}

/* 数据徽标 */
.data-badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:6px 10px;
  border:1px solid var(--c-rock);
  background:rgba(13,21,38,.72);
  color:var(--c-cream);
  font-family:var(--font-data);
  font-size:12px;
  font-variant-numeric:tabular-nums;
}
.data-badge--accent{
  border-color:var(--c-accent);
  color:var(--c-accent);
}
.data-badge--orange{
  border-color:var(--c-orange);
  color:var(--c-orange);
}

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

/* 面包屑 */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  padding:18px 0;
  color:var(--c-rock);
  font-family:var(--font-data);
  font-size:12px;
  font-variant-numeric:tabular-nums;
}
.breadcrumb li + li::before{
  content:"/";
  margin-right:8px;
  color:var(--c-rock);
}
.breadcrumb a{
  color:var(--c-accent);
}
.breadcrumb [aria-current="page"]{
  color:var(--c-orange);
}

/* 响应式图片容器 */
.media{
  position:relative;
  overflow:hidden;
  border:1px solid var(--c-rock);
  background:
    linear-gradient(135deg, rgba(198,255,0,.07), transparent 34%),
    linear-gradient(135deg, var(--c-primary), var(--c-deep));
}
.media::before{
  content:"";
  display:block;
  padding-top:56.25%;
}
.media--4x3::before{
  padding-top:75%;
}
.media--square::before{
  padding-top:100%;
}
.media--portrait::before{
  padding-top:120%;
}
.media__item{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
}
.media__caption{
  position:absolute;
  inset:auto 0 0;
  padding:36px 16px 12px;
  background:linear-gradient(transparent, rgba(13,21,38,.88));
  color:var(--c-accent);
  font-family:var(--font-data);
  font-size:11px;
  letter-spacing:.08em;
}

/* Skip link */
.skip-link{
  position:fixed;
  top:-72px;
  left:16px;
  z-index:2000;
  padding:10px 18px;
  border-radius:0 0 var(--radius) var(--radius);
  background:var(--c-accent);
  color:var(--c-deep);
  font-weight:700;
  transition:top .2s var(--ease);
}
.skip-link:focus{
  top:0;
}

/* 顶部框架导航 */
.site-header{
  position:fixed;
  top:0;
  right:0;
  left:0;
  z-index:1000;
  border-bottom:1px solid rgba(58,74,99,.9);
  background:linear-gradient(180deg, rgba(13,21,38,.96), rgba(27,42,74,.88));
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
}
.site-header::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  width:100%;
  height:2px;
  background:linear-gradient(90deg, var(--c-accent) 0%, rgba(198,255,0,.25) 34%, transparent 68%);
  pointer-events:none;
}
.site-header__progress{
  position:absolute;
  right:0;
  bottom:-1px;
  left:0;
  height:2px;
  pointer-events:none;
  background:rgba(58,74,99,.35);
}
.site-header__progress-bar{
  display:block;
  width:0;
  height:100%;
  background:linear-gradient(90deg, var(--c-accent), var(--c-orange));
  box-shadow:0 0 14px rgba(198,255,0,.55);
}
.site-header__inner{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  width:min(100% - 48px, 1400px);
  min-height:var(--header-h);
  margin-inline:auto;
  padding:10px 0;
}

/* 品牌 */
.site-brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  flex:none;
}
.site-brand__mark{
  position:relative;
  display:grid;
  place-items:center;
  width:44px;
  height:44px;
  overflow:hidden;
  border:1px solid var(--c-accent);
  background:var(--c-primary);
  transform:skewX(-8deg);
}
.site-brand__mark::after{
  content:"";
  position:absolute;
  inset:3px;
  border:1px solid rgba(198,255,0,.32);
  pointer-events:none;
}
.site-brand__beam{
  position:absolute;
  top:-10%;
  left:-12px;
  width:8px;
  height:120%;
  background:var(--c-orange);
  opacity:.85;
  transform:rotate(20deg);
  pointer-events:none;
}
.site-brand__score{
  position:relative;
  color:var(--c-accent);
  font-family:var(--font-head);
  font-size:21px;
  font-weight:700;
  line-height:1;
}
.site-brand__text{
  display:grid;
  gap:2px;
  line-height:1.05;
}
.site-brand__name{
  color:var(--c-cream);
  font-family:var(--font-head);
  font-size:22px;
  font-weight:700;
  letter-spacing:.05em;
}
.site-brand__sub{
  color:var(--c-orange);
  font-family:var(--font-data);
  font-size:10px;
  letter-spacing:.18em;
  font-variant-numeric:tabular-nums;
  text-transform:uppercase;
}

/* 主导航 */
.site-nav__list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:2px;
}
.site-nav__link{
  position:relative;
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  padding:9px 13px;
  border-bottom:2px solid transparent;
  color:rgba(245,247,250,.76);
  font-size:14px;
  font-weight:600;
  letter-spacing:.03em;
  transition:color .2s var(--ease), border-color .2s var(--ease);
}
.site-nav__link:hover{
  color:var(--c-cream);
}
.site-nav__link[aria-current="page"]{
  color:var(--c-orange);
}
.site-nav__link[aria-current="page"]::after{
  content:"";
  position:absolute;
  right:13px;
  bottom:-2px;
  left:13px;
  height:2px;
  background:var(--c-orange);
}
.site-nav__zh{
  display:block;
  line-height:1.2;
}
.site-nav__en{
  display:block;
  margin-top:2px;
  color:var(--c-rock);
  font-family:var(--font-data);
  font-size:9px;
  letter-spacing:.16em;
  text-transform:uppercase;
  transition:color .2s var(--ease);
}
.site-nav__link:hover .site-nav__en{
  color:var(--c-accent);
}
.site-nav__link[aria-current="page"] .site-nav__en{
  color:var(--c-orange);
}

/* 移动导航按钮 */
.site-nav-toggle{
  display:none;
  position:relative;
  flex:none;
  align-items:center;
  justify-content:center;
  width:46px;
  height:46px;
  border:1px solid rgba(198,255,0,.4);
  background:rgba(13,21,38,.62);
}
.site-nav-toggle__box{
  position:relative;
  width:20px;
  height:12px;
}
.site-nav-toggle__bar{
  position:absolute;
  left:0;
  width:100%;
  height:2px;
  background:var(--c-accent);
  transition:top .2s var(--ease), transform .2s var(--ease), opacity .2s var(--ease);
}
.site-nav-toggle__bar:nth-child(1){
  top:0;
}
.site-nav-toggle__bar:nth-child(2){
  top:5px;
}
.site-nav-toggle__bar:nth-child(3){
  top:10px;
}
.site-nav-toggle[aria-expanded="true"] .site-nav-toggle__bar:nth-child(1){
  top:5px;
  transform:rotate(45deg);
}
.site-nav-toggle[aria-expanded="true"] .site-nav-toggle__bar:nth-child(2){
  opacity:0;
}
.site-nav-toggle[aria-expanded="true"] .site-nav-toggle__bar:nth-child(3){
  top:5px;
  transform:rotate(-45deg);
}
.site-nav-toggle__label{
  position:absolute;
  width:1px;
  height:1px;
  overflow:hidden;
  clip:rect(0 0 0 0);
  white-space:nowrap;
}

/* 返回顶部 */
.site-to-top{
  position:fixed;
  right:18px;
  bottom:18px;
  z-index:900;
  display:flex;
  align-items:center;
  justify-content:center;
  width:46px;
  height:46px;
  border:1px solid var(--c-orange);
  background:rgba(13,21,38,.86);
  color:var(--c-orange);
  opacity:0;
  pointer-events:none;
  transform:translateY(16px);
  transition:opacity .25s var(--ease), transform .25s var(--ease), background .2s var(--ease);
}
.site-to-top[data-visible]{
  opacity:1;
  pointer-events:auto;
  transform:translateY(0);
}
.site-to-top:hover{
  background:var(--c-orange);
  color:var(--c-deep);
}
.site-to-top__text{
  font-family:var(--font-data);
  font-size:12px;
  font-weight:700;
  letter-spacing:.18em;
  writing-mode:vertical-rl;
  text-orientation:upright;
}

/* 页脚 */
.site-footer{
  position:relative;
  border-top:1px solid var(--c-rock);
  background-color:var(--c-deep);
  background-image:
    radial-gradient(circle at 18% 0%, rgba(27,42,74,.9), transparent 46%),
    linear-gradient(rgba(58,74,99,.15) 1px, transparent 1px),
    linear-gradient(90deg, rgba(58,74,99,.15) 1px, transparent 1px);
  background-size:auto, 48px 48px, 48px 48px;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  width:100%;
  height:2px;
  background:linear-gradient(90deg, var(--c-accent) 0%, transparent 52%, var(--c-orange) 100%);
  pointer-events:none;
}
.site-footer__grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1.4fr;
  gap:48px;
  width:min(100% - 48px, 1280px);
  margin-inline:auto;
  padding:64px 0 48px;
}
.site-footer__brand .site-brand{
  margin-bottom:16px;
}
.site-footer__intro{
  max-width:46ch;
  margin-bottom:14px;
  color:#a9b5c7;
  font-size:14px;
}
.site-footer__trust{
  max-width:52ch;
  margin-top:16px;
  padding-left:14px;
  border-left:3px solid var(--c-accent);
  color:var(--c-terra);
  font-family:var(--font-data);
  font-size:12px;
  line-height:1.7;
}
.site-brand--footer .site-brand__mark{
  width:40px;
  height:40px;
}
.site-brand--footer .site-brand__name{
  font-size:20px;
}
.site-footer__title{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:18px;
  padding-bottom:10px;
  border-bottom:1px solid var(--c-rock);
  color:var(--c-cream);
  font-family:var(--font-head);
  font-size:15px;
  font-weight:700;
  letter-spacing:.08em;
  text-transform:uppercase;
}
.site-footer__title::before{
  content:"";
  width:6px;
  height:6px;
  background:var(--c-accent);
  flex:none;
}
.site-footer__links{
  display:grid;
  gap:10px;
}
.site-footer__links a{
  display:inline-block;
  color:#a9b5c7;
  font-size:14px;
  transition:color .2s var(--ease), transform .2s var(--ease);
}
.site-footer__links a:hover{
  color:var(--c-accent);
  transform:translateX(4px);
}
.site-footer__contact{
  color:#a9b5c7;
  font-size:14px;
}
.site-footer__field{
  display:grid;
  gap:2px;
  margin-bottom:12px;
}
.site-footer__field--address{
  font-style:normal;
}
.site-footer__label{
  color:var(--c-rock);
  font-family:var(--font-data);
  font-size:11px;
  letter-spacing:.1em;
  text-transform:uppercase;
}
.site-footer__value{
  color:var(--c-cream);
  font-family:var(--font-data);
  font-size:14px;
  font-variant-numeric:tabular-nums;
  word-break:break-word;
}
.site-footer__note{
  margin-top:16px;
  color:var(--c-moss);
  font-size:12px;
}
.site-footer__bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  width:min(100% - 48px, 1280px);
  margin-inline:auto;
  padding:20px 0 24px;
  border-top:1px solid rgba(58,74,99,.6);
  color:var(--c-rock);
  font-family:var(--font-data);
  font-size:12px;
}
.site-footer__copyright,
.site-footer__icp,
.site-footer__domain{
  margin:0;
}
.site-footer__icp{
  color:#8996ab;
}
.site-footer__domain{
  color:var(--c-accent);
}

/* 响应式 */
@media (max-width: 1100px){
  .site-header__inner{
    gap:16px;
  }
  .site-nav-toggle{
    display:inline-flex;
  }
  .site-nav{
    position:absolute;
    top:calc(100% + 8px);
    left:14px;
    right:14px;
    z-index:30;
    border:1px solid var(--c-rock);
    border-top:2px solid var(--c-accent);
    background:rgba(13,21,38,.98);
    box-shadow:var(--shadow);
    opacity:0;
    visibility:hidden;
    transform:translateY(-10px);
    transition:opacity .22s var(--ease), transform .22s var(--ease), visibility .22s var(--ease);
  }
  .site-nav[data-open="true"]{
    opacity:1;
    visibility:visible;
    transform:translateY(0);
  }
  .site-nav__list{
    flex-direction:column;
    align-items:stretch;
    gap:2px;
    padding:14px;
  }
  .site-nav__link{
    flex-direction:row;
    align-items:center;
    justify-content:space-between;
    padding:14px 16px;
    border:0;
    border-left:2px solid var(--c-rock);
    background:rgba(27,42,74,.55);
  }
  .site-nav__link:hover,
  .site-nav__link[aria-current="page"]{
    border-left-color:var(--c-accent);
  }
  .site-nav__link[aria-current="page"]::after{
    display:none;
  }
  .site-nav__zh{
    font-size:15px;
  }
  .site-nav__en{
    margin-top:0;
  }
  .site-footer__grid{
    grid-template-columns:1fr 1fr;
    gap:40px;
  }
}
@media (max-width: 900px){
  .grid--3{
    grid-template-columns:repeat(2, minmax(0,1fr));
  }
  .section{
    padding:56px 0;
  }
}
@media (max-width: 640px){
  :root{
    --header-h:64px;
  }
  .site-header__inner{
    min-height:64px;
  }
  .site-brand__mark{
    width:38px;
    height:38px;
  }
  .site-brand__name{
    font-size:19px;
  }
  .site-brand__sub{
    font-size:9px;
  }
  .site-nav-toggle{
    width:42px;
    height:42px;
  }
  .site-footer__grid{
    grid-template-columns:1fr;
    gap:32px;
    padding:48px 0 32px;
  }
  .site-footer__bottom{
    flex-direction:column;
    align-items:flex-start;
  }
  .grid--2,
  .grid--3{
    grid-template-columns:1fr;
  }
  .section__head{
    flex-direction:column;
    align-items:flex-start;
    gap:12px;
  }
  .site-to-top{
    right:12px;
    bottom:12px;
    width:42px;
    height:42px;
  }
}

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