:root{
  --color-primary:#0A1F44;
  --color-bg:#061021;
  --color-card:#112B5A;
  --color-accent:#39FF14;
  --color-gold:#FFD700;
  --color-text:#E6EDF7;
  --color-text-dim:#7B8DB0;
  --color-border:#1A3A6B;
  --color-contrast:#F2F4F8;
  --color-teal:#2DD4BF;
  --font-head:'Oswald','Helvetica Neue',Arial,sans-serif;
  --font-body:'Inter','PingFang SC','Microsoft YaHei',sans-serif;
  --font-data:'JetBrains Mono','SFMono-Regular',Consolas,monospace;
  --radius:8px;
  --radius-sm:4px;
  --shadow:0 4px 24px rgba(0,0,0,.35);
  --header-h:76px;
  --grid-base:4px;
  --max-width:1240px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.6;
  color:var(--color-text);
  background:var(--color-bg);
  background:linear-gradient(160deg,#0A1F44 0%,#061021 45%,#071630 100%);
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
}
img,svg{display:block;max-width:100%}
a{color:var(--color-accent);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--color-gold)}
button{font-family:inherit;cursor:pointer;background:none;border:none;color:inherit}
:focus-visible{
  outline:2px solid var(--color-accent);
  outline-offset:3px;
  border-radius:2px;
}
::selection{background:rgba(57,255,20,.25);color:var(--color-contrast)}
.container{
  max-width:var(--max-width);
  margin:0 auto;
  padding:0 24px;
}
.skip-link{
  position:fixed;
  top:12px;
  left:12px;
  z-index:9999;
  background:var(--color-accent);
  color:#061021;
  font-weight:700;
  font-size:14px;
  padding:8px 20px;
  border-radius:var(--radius-sm);
  transform:translateY(-200%);
  transition:transform .25s var(--ease);
}
.skip-link:focus-visible,
.skip-link:focus{
  transform:translateY(0);
}
/* ===== Header ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:1000;
  background:rgba(6,16,33,.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--color-border);
  box-shadow:0 4px 20px rgba(0,0,0,.4);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:var(--header-h);
}
.nav-brand{
  display:flex;
  align-items:center;
  gap:12px;
  transform:skewX(-2deg);
}
.brand-mark{
  display:flex;
  align-items:center;
  justify-content:center;
  width:42px;
  height:42px;
  font-family:var(--font-head);
  font-weight:700;
  font-size:24px;
  color:var(--color-bg);
  background:var(--color-accent);
  clip-path:polygon(0 0,100% 0,92% 100%,0 100%);
  box-shadow:0 0 18px rgba(57,255,20,.35);
}
.brand-text{
  display:flex;
  flex-direction:column;
  line-height:1.15;
}
.brand-name{
  font-family:var(--font-head);
  font-size:24px;
  font-weight:700;
  letter-spacing:1px;
  color:var(--color-text);
  text-transform:uppercase;
}
.brand-slogan{
  font-size:11px;
  letter-spacing:1.8px;
  color:var(--color-text-dim);
  margin-top:3px;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
}
.nav-link{
  position:relative;
  display:inline-block;
  padding:8px 16px;
  color:var(--color-text);
  font-size:14px;
  font-weight:500;
  letter-spacing:.4px;
  white-space:nowrap;
  transition:color .2s var(--ease);
}
.nav-link::after{
  content:'';
  position:absolute;
  left:14px;
  right:14px;
  bottom:2px;
  height:2px;
  background:var(--color-accent);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .25s var(--ease);
}
.nav-link:hover{
  color:var(--color-accent);
}
.nav-link:hover::after,
.nav-link[aria-current="page"]::after{
  transform:scaleX(1);
}
.nav-link[aria-current="page"]{
  color:var(--color-accent);
  text-shadow:0 0 12px rgba(57,255,20,.4);
}
.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:44px;
  height:44px;
  padding:10px;
  border:1px solid var(--color-border);
  border-radius:var(--radius-sm);
  background:rgba(10,31,68,.6);
}
.toggle-bar{
  display:block;
  height:2px;
  background:var(--color-accent);
  border-radius:2px;
  transition:transform .3s var(--ease),opacity .2s;
}
.nav-toggle[aria-expanded="true"] .toggle-bar:nth-child(1){
  transform:translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .toggle-bar:nth-child(2){
  opacity:0;
}
.nav-toggle[aria-expanded="true"] .toggle-bar:nth-child(3){
  transform:translateY(-7px) rotate(-45deg);
}
/* ===== Footer ===== */
.site-footer{
  margin-top:80px;
  background:linear-gradient(180deg,rgba(6,16,33,.95),#050d1c 100%);
  border-top:1px solid var(--color-border);
  border-top:3px solid var(--color-gold);
  position:relative;
}
.site-footer::before{
  content:'';
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,var(--color-gold),transparent);
  opacity:.5;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.2fr .8fr .8fr 1.2fr;
  gap:48px;
  padding:56px 0 40px;
}
.footer-brand .footer-logo{
  font-family:var(--font-head);
  font-size:28px;
  font-weight:700;
  color:var(--color-contrast);
  text-transform:uppercase;
  letter-spacing:1px;
  display:inline-block;
  margin-bottom:14px;
  transform:skewX(-2deg);
}
.footer-about{
  font-size:14px;
  color:var(--color-text-dim);
  line-height:1.8;
  margin-bottom:16px;
  max-width:360px;
}
.footer-trust{
  font-size:12px;
  color:var(--color-text-dim);
  border-left:2px solid var(--color-gold);
  padding-left:12px;
  max-width:380px;
  opacity:.85;
}
.footer-title{
  font-family:var(--font-head);
  font-size:16px;
  font-weight:600;
  color:var(--color-contrast);
  text-transform:uppercase;
  letter-spacing:1.5px;
  margin-bottom:18px;
}
.footer-links{
  display:flex;
  flex-direction:column;
  gap:6px;
}
.footer-links a{
  display:inline-block;
  color:var(--color-text-dim);
  font-size:14px;
  padding:4px 0;
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer-links a:hover{
  color:var(--color-accent);
  transform:translateX(4px);
}
.footer-contact .contact-line{
  display:flex;
  gap:8px;
  font-size:13px;
  margin-bottom:10px;
  color:var(--color-text-din);
  word-break:break-all;
}
.contact-label{
  color:var(--color-gold);
  font-weight:600;
  white-space:nowrap;
  flex-shrink:0;
  font-size:12px;
  font-family:var(--font-data);
  text-transform:uppercase;
  letter-spacing:1px;
}
.contact-line a{
  color:var(--color-text-dim);
}
.contact-line a:hover{
  color:var(--color-accent);
}
.contact-note{
  font-size:12px;
  color:var(--color-text-dim);
  margin-top:14px;
  border-top:1px dashed var(--color-border);
  padding-top:10px;
}
.footer-bottom{
  border-top:1px solid var(--color-border);
  padding:20px 0;
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  align-items:center;
}
.footer-copyright{
  font-size:13px;
  color:var(--color-text-dim);
}
.footer-icp a{
  font-size:13px;
  color:var(--color-text-dim);
}
.footer-icp a:hover{
  color:var(--color-gold);
}
/* ===== Common ===== */
main{
  min-height:60vh;
}
.section{
  padding:64px 0;
}
.section-tight{
  padding:32px 0;
}
.section-title{
  font-family:var(--font-head);
  font-size:40px;
  font-weight:700;
  text-transform:uppercase;
  transform:skewX(-2deg);
  letter-spacing:1px;
  line-height:1.1;
  position:relative;
  padding-left:18px;
  margin-bottom:32px;
}
.section-title::before{
  content:'';
  position:absolute;
  left:0;
  top:6px;
  bottom:6px;
  width:3px;
  background:var(--color-gold);
  transform:skewX(-2deg);
}
.section-sub{
  color:var(--color-text-dim);
  font-size:15px;
  max-width:560px;
  margin-bottom:32px;
}
.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:10px 24px;
  font-size:14px;
  font-weight:600;
  color:var(--color-accent);
  border:1px solid var(--color-accent);
  background:transparent;
  border-radius:2px;
  transform:skewX(-2deg);
  transition:all .25s var(--ease);
  letter-spacing:.5px;
}
.btn:hover{
  background:var(--color-accent);
  color:#061021;
  box-shadow:0 0 20px rgba(57,255,20,.35);
}
.btn-solid{
  background:var(--color-accent);
  color:#061021;
}
.btn-solid:hover{
  background:var(--color-gold);
  border-color:var(--color-gold);
  box-shadow:0 0 20px rgba(255,215,0,.35);
}
.card{
  background:linear-gradient(145deg,var(--color-card),rgba(17,43,90,.7));
  border:1px solid var(--color-border);
  border-radius:var(--radius);
  padding:24px;
  transition:border-color .3s var(--ease),box-shadow .3s var(--ease),transform .3s var(--ease);
  position:relative;
}
.card:hover{
  border-color:var(--color-accent);
  box-shadow:0 0 24px rgba(57,255,20,.12);
}
.tag{
  display:inline-flex;
  align-items:center;
  padding:4px 12px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.8px;
  color:var(--color-text);
  border:1px solid var(--color-border);
  border-radius:100px;
  background:rgba(10,31,68,.5);
  white-space:nowrap;
}
.tag[data-tone="gold"]{
  color:var(--color-gold);
  border-color:rgba(255,215,0,.35);
  background:rgba(255,215,0,.06);
}
.tag[data-tone="green"]{
  color:var(--color-accent);
  border-color:rgba(57,255,20,.35);
  background:rgba(57,255,20,.05);
}
.badge{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:24px;
  height:24px;
  padding:0 8px;
  font-family:var(--font-data);
  font-size:13px;
  font-weight:700;
  border-radius:100px;
  background:var(--color-gold);
  color:#061021;
}
.data-num{
  font-family:var(--font-data);
  font-weight:700;
  color:var(--color-gold);
  font-size:1.6em;
}
/* ===== Breadcrumb ===== */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:6px;
  padding:16px 0;
  font-size:13px;
  color:var(--color-text-dim);
}
.breadcrumb a{
  color:var(--color-text-dim);
}
.breadcrumb a:hover{
  color:var(--color-accent);
}
.breadcrumb .sep{
  color:var(--color-border);
  user-select:none;
}
.breadcrumb [aria-current="page"]{
  color:var(--color-gold);
}
/* ===== Bento Grid ===== */
.grid-bento{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:16px;
}
.grid-item{
  position:relative;
}
.grid-item[data-span="3"]{grid-column:span 3}
.grid-item[data-span="4"]{grid-column:span 4}
.grid-item[data-span="5"]{grid-column:span 5}
.grid-item[data-span="6"]{grid-column:span 6}
.grid-item[data-span="7"]{grid-column:span 7}
.grid-item[data-span="8"]{grid-column:span 8}
.grid-item[data-span="9"]{grid-column:span 9}
.grid-item[data-span="12"]{grid-column:span 12}
/* ===== Filter Bar ===== */
.filter-bar{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-bottom:24px;
}
.filter-bar .filter-btn{
  padding:6px 16px;
  font-size:13px;
  font-weight:600;
  color:var(--color-text-dim);
  border:1px solid var(--color-border);
  background:rgba(10,31,68,.4);
  border-radius:100px;
  transition:all .2s var(--ease);
}
.filter-bar .filter-btn:hover{
  border-color:var(--color-accent);
  color:var(--color-accent);
}
.filter-bar .filter-btn[data-active="true"]{
  background:var(--color-accent);
  border-color:var(--color-accent);
  color:#061021;
  box-shadow:0 0 12px rgba(57,255,20,.3);
}
/* ===== Progress Bar ===== */
.progress-bar{
  position:fixed;
  top:0;
  left:0;
  height:2px;
  width:0;
  background:linear-gradient(90deg,var(--color-accent),var(--color-gold));
  z-index:3000;
  pointer-events:none;
}
/* ===== Back Top ===== */
.back-top{
  position:fixed;
  right:20px;
  bottom:20px;
  width:44px;
  height:44px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:var(--color-card);
  border:1px solid var(--color-border);
  border-radius:var(--radius-sm);
  color:var(--color-accent);
  font-size:18px;
  opacity:0;
  visibility:hidden;
  transform:translateY(12px);
  transition:all .3s var(--ease);
  z-index:900;
}
.back-top.is-visible{
  opacity:1;
  visibility:visible;
  transform:translateY(0);
}
.back-top:hover{
  border-color:var(--color-accent);
  box-shadow:0 0 16px rgba(57,255,20,.3);
}
/* ===== Image Placeholder ===== */
.img-placeholder{
  position:relative;
  width:100%;
  background:linear-gradient(145deg,var(--color-primary),var(--color-bg));
  border:1px solid var(--color-border);
  border-radius:var(--radius);
  overflow:hidden;
  min-height:120px;
}
.img-placeholder::before{
  content:attr(data-label);
  position:absolute;
  inset:0;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:12px;
  letter-spacing:2px;
  color:var(--color-text-dim);
  text-transform:uppercase;
}
.img-placeholder::after{
  content:'';
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(57,255,20,.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(57,255,20,.06) 1px,transparent 1px);
  background-size:24px 24px;
  pointer-events:none;
}
.img-placeholder[data-ratio="21-9"]{
  aspect-ratio:21/9;
}
.img-placeholder[data-ratio="16-9"]{
  aspect-ratio:16/9;
}
.img-placeholder[data-ratio="4-3"]{
  aspect-ratio:4/3;
}
.img-placeholder[data-ratio="1-1"]{
  aspect-ratio:1/1;
}
/* ===== Reveal Animation ===== */
[data-reveal]{
  opacity:0;
  transform:translateY(18px);
  transition:opacity .6s var(--ease),transform .6s var(--ease);
}
[data-reveal="visible"]{
  opacity:1;
  transform:translateY(0);
}
/* ===== Responsive ===== */
@media (max-width:1024px){
  .footer-grid{
    grid-template-columns:1fr 1fr;
    gap:32px;
  }
}
@media (max-width:768px){
  :root{
    --header-h:62px;
  }
  .container{
    padding:0 16px;
  }
  .brand-slogan{
    display:none;
  }
  .nav-toggle{
    display:flex;
  }
  .nav-links{
    position:absolute;
    top:var(--header-h);
    left:0;
    right:0;
    background:rgba(6,16,33,.98);
    border-bottom:1px solid var(--color-border);
    flex-direction:column;
    align-items:stretch;
    padding:8px 16px 16px;
    gap:2px;
    opacity:0;
    visibility:hidden;
    transform:translateY(-8px);
    transition:opacity .25s var(--ease),transform .25s var(--ease);
    max-height:calc(100vh - var(--header-h));
    overflow-y:auto;
  }
  .nav-links[data-open="true"]{
    opacity:1;
    visibility:visible;
    transform:translateY(0);
  }
  .nav-link{
    padding:12px 8px;
    font-size:15px;
    border-bottom:1px solid var(--color-border);
  }
  .nav-link::after{
    display:none;
  }
  .grid-bento{
    display:block;
  }
  .grid-item{
    margin-bottom:16px;
  }
  .section-title{
    font-size:28px;
  }
  .footer-grid{
    grid-template-columns:1fr;
    gap:28px;
    padding:40px 0 24px;
  }
  .footer-bottom{
    flex-direction:column;
    text-align:center;
  }
}
@media (max-width:480px){
  body{
    font-size:15px;
  }
  .brand-name{
    font-size:20px;
  }
  .section{
    padding:40px 0;
  }
}
/* ===== Reduced Motion ===== */
@media (prefers-reduced-motion:reduce){
  *,
  *::before,
  *::after{
    animation-duration:.01ms!important;
    animation-iteration-count:1!important;
    transition-duration:.01ms!important;
    scroll-behavior:auto!important;
  }
  [data-reveal]{
    opacity:1;
    transform:none;
  }
}