:root{
  --c-primary:#7AC74F;
  --c-primary-dark:#5CA832;
  --c-primary-soft:rgba(122,199,79,.14);
  --c-accent:#FF6F00;
  --c-accent-dark:#C44800;
  --c-accent-soft:rgba(255,111,0,.12);
  --c-bg:#F4F1EA;
  --c-dark:#2D2D2D;
  --c-ink:#1A1A1A;
  --c-white:#FFFFFF;
  --c-gray:#8A8A8A;
  --c-line:#D1D1D1;
  --font-head:Impact,'Arial Black','PingFang SC','Microsoft YaHei',sans-serif;
  --font-body:Inter,'Helvetica Neue','PingFang SC','Microsoft YaHei',sans-serif;
  --font-data:'DIN Alternate','Roboto Mono','Courier New',monospace;
  --container:1200px;
  --shadow:0 8px 24px rgba(0,0,0,.08);
}

*,*::before,*::after{ box-sizing:border-box; }
*{ margin:0; }
html{
  scroll-behavior:smooth;
  scroll-padding-top:8rem;
  -webkit-text-size-adjust:100%;
}
body{
  font-family:var(--font-body);
  line-height:1.6;
  background:var(--c-bg);
  color:var(--c-ink);
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
}
main{ display:block; }
img,svg{ display:block; max-width:100%; }
ul,ol{ list-style:none; padding:0; margin:0; }
a{ color:inherit; text-decoration:none; }
button{
  font:inherit;
  color:inherit;
  background:none;
  border:0;
  cursor:pointer;
  padding:0;
}
h1,h2,h3,h4{
  font-family:var(--font-head);
  text-transform:uppercase;
  line-height:1.1;
  letter-spacing:.02em;
  color:var(--c-ink);
}
h1{ font-size:clamp(2.2rem,5vw,4.2rem); }
h2{ font-size:clamp(1.5rem,3vw,2.4rem); }
h3{ font-size:clamp(1.2rem,2vw,1.6rem); }
::selection{ background:var(--c-primary); color:#1A1A1A; }
:focus-visible{
  outline:3px solid var(--c-accent);
  outline-offset:2px;
}

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

.container{
  width:min(100% - 2rem, var(--container));
  margin-inline:auto;
}
@media (min-width:768px){
  .container{ width:min(100% - 3rem, var(--container)); }
}

/* ===== 头部 ===== */
.skip-link{
  position:fixed;
  top:.6rem;
  left:.6rem;
  z-index:300;
  display:inline-block;
  padding:.6rem 1.2rem;
  background:var(--c-primary);
  color:#1A1A1A;
  font-family:var(--font-head);
  font-size:.85rem;
  letter-spacing:.08em;
  text-transform:uppercase;
  transform:translateY(-320%);
  transition:transform .2s ease;
}
.skip-link:focus-visible{
  transform:translateY(0);
  color:#fff;
}

.site-header{
  position:sticky;
  top:0;
  z-index:150;
  background:
    linear-gradient(135deg, rgba(122,199,79,.16) 0%, rgba(122,199,79,0) 42%),
    rgba(26,26,26,.96);
  color:var(--c-bg);
  box-shadow:0 1px 0 rgba(122,199,79,.45), 0 10px 30px rgba(0,0,0,.25);
  transition:box-shadow .3s ease;
}
@supports (backdrop-filter: blur(8px)){
  .site-header{
    -webkit-backdrop-filter:blur(8px);
    backdrop-filter:blur(8px);
  }
}
.site-header.is-scrolled{
  box-shadow:0 1px 0 rgba(122,199,79,.5), 0 16px 40px rgba(0,0,0,.42);
}

.header-topbar{
  border-bottom:1px solid rgba(244,241,234,.1);
}
.header-topbar-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1rem;
  min-height:2.4rem;
  padding-top:.25rem;
  padding-bottom:.25rem;
}
.header-topbar-text{
  display:flex;
  align-items:center;
  gap:.55rem;
  font-size:.8rem;
  letter-spacing:.04em;
  color:var(--c-bg);
}
.pulse-dot{
  display:inline-block;
  width:.48rem;
  height:.48rem;
  background:var(--c-accent);
  transform:rotate(45deg);
  animation:pulse 2s infinite;
}
@keyframes pulse{
  70%{ box-shadow:0 0 0 6px rgba(255,111,0,0); }
  100%{ box-shadow:0 0 0 0 rgba(255,111,0,0); }
}
.header-topbar-status{
  display:flex;
  align-items:center;
  gap:.5rem;
  font-family:var(--font-body);
  font-size:.78rem;
  letter-spacing:.05em;
  color:var(--c-gray);
}
.status-num{
  font-family:var(--font-data);
  font-weight:700;
  font-size:1rem;
  color:var(--c-primary);
}

.header-main{
  position:relative;
}
.header-main-inner{
  display:flex;
  align-items:center;
  gap:1.25rem;
  min-height:4.5rem;
  padding-top:.5rem;
  padding-bottom:.5rem;
}

.brand{
  display:flex;
  align-items:center;
  gap:.75rem;
  margin-right:auto;
}
.brand-mark{
  position:relative;
  flex:0 0 auto;
  width:2.6rem;
  height:2.6rem;
  display:grid;
  place-items:center;
  background:var(--c-primary);
  box-shadow:inset 0 -3px 0 rgba(26,26,26,.28);
  transition:background .2s ease;
}
.brand:hover .brand-mark{ background:var(--c-accent); }
.brand-mark-core{
  font-family:var(--font-head);
  font-size:1.6rem;
  font-weight:900;
  line-height:1;
  color:#1A1A1A;
  transform:skewX(-6deg);
}
.brand-mark-edge{
  position:absolute;
  top:0;
  right:0;
  width:0;
  height:0;
  border-top:14px solid var(--c-accent);
  border-left:14px solid transparent;
  transition:border-top-color .2s ease;
}
.brand:hover .brand-mark-edge{ border-top-color:#fff; }
.brand-text{
  display:flex;
  flex-direction:column;
  line-height:1.1;
}
.brand-name{
  font-family:var(--font-head);
  font-size:1.3rem;
  letter-spacing:.03em;
  color:#fff;
  text-transform:uppercase;
  white-space:nowrap;
}
.brand-sub{
  font-family:var(--font-data);
  font-size:.6rem;
  letter-spacing:.32em;
  color:var(--c-primary);
  text-transform:uppercase;
  margin-top:.2rem;
}

.main-nav{
  margin-left:0;
}
.nav-list{
  display:flex;
  align-items:center;
  gap:.15rem;
  flex-wrap:wrap;
}
.nav-item{ list-style:none; margin:0; }
.nav-link{
  position:relative;
  display:block;
  padding:.5rem .9rem;
  font-family:var(--font-head);
  font-size:.92rem;
  letter-spacing:.06em;
  text-transform:uppercase;
  color:rgba(244,241,234,.88);
  transition:color .2s ease;
}
.nav-link:hover{ color:var(--c-primary); }
.nav-link::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:.12rem;
  width:1.5rem;
  height:.22rem;
  background:var(--c-accent);
  transform:translateX(-50%) scaleX(0);
  transition:transform .25s ease;
}
.nav-link:hover::after{ transform:translateX(-50%) scaleX(1); }
.nav-link[aria-current="page"]{
  color:var(--c-primary);
  text-shadow:0 0 12px rgba(122,199,79,.55);
}
.nav-link[aria-current="page"]::after{ transform:translateX(-50%) scaleX(1); }

.header-cta{
  display:inline-flex;
  align-items:center;
  white-space:nowrap;
  padding:.5rem .95rem;
  background:var(--c-primary);
  color:#1A1A1A;
  font-family:var(--font-head);
  font-size:.8rem;
  letter-spacing:.08em;
  text-transform:uppercase;
  line-height:1;
  box-shadow:inset 0 -3px 0 rgba(26,26,26,.28);
  transition:background .2s ease, color .2s ease, box-shadow .2s ease;
}
.header-cta:hover{
  background:var(--c-accent);
  color:#fff;
  box-shadow:inset 0 -3px 0 rgba(255,255,255,.25);
}

.nav-toggle{
  display:none;
  align-items:center;
  gap:.5rem;
  padding:.45rem .65rem;
  background:var(--c-primary-soft);
  border:1px solid rgba(122,199,79,.35);
  color:#fff;
  font-family:var(--font-head);
  font-size:.8rem;
  letter-spacing:.08em;
  text-transform:uppercase;
  transition:border-color .2s ease;
}
.nav-toggle:hover{ border-color:var(--c-accent); }
.nav-toggle:hover .nav-toggle-line{ background:var(--c-accent); }
.nav-toggle-box{
  display:grid;
  gap:4px;
  width:1.25rem;
}
.nav-toggle-line{
  display:block;
  height:2px;
  background:var(--c-primary);
  transition:transform .2s ease, opacity .2s ease, background .2s ease;
}
[data-nav-toggle][aria-expanded="true"] .nav-toggle-line:nth-child(1){
  transform:translateY(6px) rotate(45deg);
  background:var(--c-accent);
}
[data-nav-toggle][aria-expanded="true"] .nav-toggle-line:nth-child(2){
  opacity:0;
}
[data-nav-toggle][aria-expanded="true"] .nav-toggle-line:nth-child(3){
  transform:translateY(-6px) rotate(-45deg);
  background:var(--c-accent);
}
.nav-toggle-label{
  letter-spacing:.12em;
}

.scroll-progress{
  position:absolute;
  left:0;
  bottom:0;
  height:3px;
  width:0%;
  z-index:20;
  pointer-events:none;
  background:linear-gradient(90deg, var(--c-primary), var(--c-accent));
  box-shadow:0 0 8px rgba(255,111,0,.7);
}

@media (max-width:980px){
  .header-topbar-status{ display:none; }
  .header-cta{ display:none; }
  .nav-toggle{ display:inline-flex; }
  .header-main-inner{ position:relative; }
  .main-nav{
    position:absolute;
    top:100%;
    left:0;
    right:0;
    background:#141414;
    border-top:3px solid var(--c-primary);
    box-shadow:0 20px 30px rgba(0,0,0,.35);
    visibility:hidden;
    opacity:0;
    transform:translateY(-8px);
    transition:opacity .2s ease, transform .2s ease, visibility .2s ease;
  }
  .main-nav[data-open]{
    visibility:visible;
    opacity:1;
    transform:translateY(0);
  }
  .nav-list{
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:.4rem 0 1rem;
  }
  .nav-link{
    padding:.9rem 1rem;
    border-bottom:1px solid rgba(244,241,234,.08);
    font-size:1.05rem;
  }
  .nav-link::after{ display:none; }
  .nav-link[aria-current="page"]{ color:var(--c-primary); }
}

/* ===== 页脚 ===== */
.site-footer{
  position:relative;
  margin-top:clamp(3rem, 6vw, 5rem);
  background:#1A1A1A;
  color:var(--c-bg);
}
.footer-skyline{
  height:.42rem;
  background:repeating-linear-gradient(115deg, var(--c-primary) 0 14px, var(--c-accent) 14px 28px, rgba(244,241,234,.14) 28px 34px);
}
.footer-grid{
  display:grid;
  gap:2.5rem;
  grid-template-columns:1fr;
  padding:3rem 0 2.5rem;
}
@media (min-width:700px){
  .footer-grid{ grid-template-columns:repeat(2, minmax(0,1fr)); }
}
@media (min-width:1000px){
  .footer-grid{ grid-template-columns:1.4fr .8fr .8fr 1.2fr; }
}
.footer-col{ min-width:0; }
.footer-brand-col{ max-width:28rem; }
.brand-footer{ margin-bottom:1.25rem; }
.footer-tagline{
  margin-top:1rem;
  max-width:22rem;
  color:rgba(244,241,234,.72);
  font-size:.92rem;
}
.footer-title{
  position:relative;
  margin-bottom:1rem;
  padding-bottom:.5rem;
  border-bottom:1px solid rgba(122,199,79,.3);
  font-family:var(--font-head);
  font-size:.85rem;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--c-primary);
}
.footer-title::after{
  content:"";
  position:absolute;
  left:0;
  bottom:-1px;
  width:2.2rem;
  height:2px;
  background:var(--c-accent);
}
.footer-links li + li{ margin-top:.45rem; }
.footer-links a{
  color:rgba(244,241,234,.8);
  font-size:.92rem;
  transition:color .2s ease, padding-left .2s ease;
}
.footer-links a:hover{
  color:var(--c-primary);
  padding-left:.25rem;
}
.footer-contact-col{ min-width:0; }
.footer-contact li{
  position:relative;
  padding:.25rem 0 .25rem 1.2rem;
  color:rgba(244,241,234,.8);
  font-size:.9rem;
}
.footer-contact li::before{
  content:"";
  position:absolute;
  left:0;
  top:.65rem;
  width:.45rem;
  height:.45rem;
  background:var(--c-accent);
}
.footer-bottom{
  border-top:1px solid rgba(244,241,234,.12);
  padding:1rem 0;
}
.footer-bottom-inner{
  display:flex;
  flex-wrap:wrap;
  gap:.5rem 1.5rem;
  align-items:center;
  justify-content:space-between;
  font-size:.8rem;
  color:rgba(244,241,234,.55);
}
.footer-icp{
  font-family:var(--font-data);
  letter-spacing:.05em;
}
.footer-icp::before{
  content:"";
  display:inline-block;
  width:.55rem;
  height:.55rem;
  margin-right:.45rem;
  background:var(--c-primary);
}

.back-to-top{
  position:fixed;
  right:1rem;
  bottom:1rem;
  z-index:120;
  display:inline-flex;
  align-items:center;
  gap:.4rem;
  padding:.65rem .95rem;
  background:var(--c-ink);
  color:var(--c-primary);
  border:2px solid var(--c-primary);
  font-family:var(--font-head);
  font-size:.75rem;
  letter-spacing:.12em;
  text-transform:uppercase;
  line-height:1;
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  transition:opacity .25s ease, transform .25s ease, visibility .25s ease, background .2s ease, color .2s ease;
}
.back-to-top[data-show]{
  opacity:1;
  visibility:visible;
  transform:translateY(0);
}
.back-to-top:hover{
  background:var(--c-primary);
  color:#1A1A1A;
}
.top-arrow{
  font-size:1.1rem;
  color:var(--c-accent);
}

/* ===== 基础组件 ===== */
.section{ padding:clamp(3rem, 6vw, 5.5rem) 0; }
.section-dark{ background:var(--c-ink); color:var(--c-bg); }
.section-dark .sec-title{ color:#fff; }
.section-dark .sec-sub{ color:rgba(244,241,234,.75); }
.section-green{ background:var(--c-primary); color:#1A1A1A; }
.section-green .sec-title{ color:#1A1A1A; }
.section-green .sec-sub{ color:rgba(26,26,26,.8); }

.section-head{
  max-width:46rem;
  margin-bottom:2.5rem;
}
.sec-index{
  display:block;
  margin-bottom:.4rem;
  font-family:var(--font-data);
  font-size:.9rem;
  letter-spacing:.2em;
  color:var(--c-accent);
  text-transform:uppercase;
}
.sec-title{
  font-family:var(--font-head);
  font-size:clamp(1.8rem, 4vw, 3rem);
  line-height:1.05;
  letter-spacing:.02em;
  text-transform:uppercase;
  color:var(--c-ink);
}
.sec-sub{
  margin-top:.75rem;
  color:var(--c-gray);
  font-size:1rem;
}

.cols{
  display:grid;
  gap:1.5rem;
  grid-template-columns:1fr;
}
@media (min-width:700px){
  .cols-2{ grid-template-columns:repeat(2, minmax(0,1fr)); }
}
@media (min-width:900px){
  .cols-3{ grid-template-columns:repeat(3, minmax(0,1fr)); }
}

.prose{ max-width:72ch; }
.prose > p{
  margin-bottom:1rem;
  color:#3a3a3a;
  font-size:1rem;
}
.prose h2,
.prose h3{
  margin:2.2rem 0 .8rem;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.45rem;
  padding:.8rem 1.5rem;
  border:2px solid transparent;
  font-family:var(--font-head);
  font-size:.9rem;
  letter-spacing:.08em;
  text-transform:uppercase;
  line-height:1;
  transition:transform .2s ease, background .2s ease, color .2s ease, border-color .2s ease;
}
.btn-primary{
  background:var(--c-primary);
  color:#1A1A1A;
  border-color:var(--c-primary);
}
.btn-primary:hover{
  background:var(--c-primary-dark);
  border-color:var(--c-primary-dark);
  color:#fff;
  transform:translateY(-2px);
}
.btn-accent{
  background:var(--c-accent);
  color:#fff;
  border-color:var(--c-accent);
}
.btn-accent:hover{
  background:var(--c-accent-dark);
  border-color:var(--c-accent-dark);
  transform:translateY(-2px);
}
.btn-ghost{
  background:transparent;
  color:var(--c-primary);
  border-color:var(--c-primary);
}
.btn-ghost:hover{
  background:var(--c-primary);
  color:#fff;
  transform:translateY(-2px);
}
.btn-lg{
  padding:1rem 2rem;
  font-size:1.05rem;
}

.card-grid{
  display:grid;
  gap:1.5rem;
  grid-template-columns:repeat(auto-fill, minmax(260px, 1fr));
}
.card{
  position:relative;
  padding:1.5rem;
  background:#fff;
  border:1px solid var(--c-line);
  box-shadow:var(--shadow);
  transition:transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.card:hover{
  transform:translateY(-4px);
  border-color:var(--c-primary);
  box-shadow:0 16px 30px rgba(0,0,0,.12);
}
.card-title{
  margin-bottom:.5rem;
  font-family:var(--font-head);
  font-size:1.3rem;
  text-transform:uppercase;
  letter-spacing:.03em;
}
.card-text{
  color:var(--c-gray);
  font-size:.95rem;
}

.tag{
  display:inline-block;
  padding:.18rem .55rem;
  background:var(--c-primary-soft);
  border-left:3px solid var(--c-primary);
  color:var(--c-primary-dark);
  font-family:var(--font-data);
  font-size:.72rem;
  letter-spacing:.08em;
  text-transform:uppercase;
}
.tag-orange{
  background:var(--c-accent-soft);
  border-left-color:var(--c-accent);
  color:var(--c-accent-dark);
}

.data-num{
  font-family:var(--font-data);
  font-weight:700;
  line-height:1;
  font-variant-numeric:tabular-nums;
  font-size:clamp(2.6rem, 5vw, 4.2rem);
  color:var(--c-accent);
}

.table-wrap{ overflow-x:auto; }
.data-table{
  width:100%;
  border-collapse:collapse;
  background:#fff;
  font-family:var(--font-data);
  font-size:.92rem;
}
.data-table th,
.data-table td{
  padding:.8rem 1rem;
  text-align:left;
  border-bottom:1px solid var(--c-line);
}
.data-table thead th{
  background:var(--c-primary-soft);
  border-bottom:2px solid var(--c-primary);
  font-family:var(--font-head);
  font-size:.8rem;
  letter-spacing:.06em;
  text-transform:uppercase;
  color:var(--c-ink);
}
.data-table tbody tr:hover{ background:var(--c-accent-soft); }

.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  padding:1rem 0;
  font-size:.85rem;
  color:var(--c-gray);
}
.breadcrumb li{
  display:inline-flex;
  align-items:center;
}
.breadcrumb li + li::before{
  content:"";
  width:.42rem;
  height:.42rem;
  margin:0 .65rem;
  background:var(--c-accent);
  transform:rotate(45deg);
}
.breadcrumb a{
  color:var(--c-ink);
  transition:color .2s ease;
}
.breadcrumb a:hover{ color:var(--c-accent); }

.media{
  position:relative;
  overflow:hidden;
  background:var(--c-dark);
}
.media-16x9{ aspect-ratio:16/9; }
.media-4x3{ aspect-ratio:4/3; }
.media-placeholder::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    linear-gradient(135deg, rgba(122,199,79,.28) 0%, rgba(122,199,79,0) 48%),
    repeating-linear-gradient(-45deg, rgba(255,111,0,.14) 0 10px, transparent 10px 22px);
}
.media-placeholder::after{
  content:"MEDIA";
  position:absolute;
  inset:0;
  display:grid;
  place-items:center;
  font-family:var(--font-data);
  font-size:.85rem;
  letter-spacing:.35em;
  color:rgba(244,241,234,.65);
}

.speedlines{
  height:.4rem;
  background:repeating-linear-gradient(115deg, var(--c-primary) 0 12px, rgba(26,26,26,.06) 12px 18px, var(--c-accent) 18px 26px, rgba(26,26,26,.06) 26px 32px);
}

html.reveal-ready [data-reveal]{
  opacity:0;
  transform:translateY(18px);
  transition:opacity .55s ease, transform .55s ease;
}
html.reveal-ready [data-reveal].is-in{
  opacity:1;
  transform:none;
}

@media (max-width:560px){
  .header-topbar-text{ font-size:.7rem; }
  .brand-name{ font-size:1.12rem; }
  .brand-sub{ font-size:.58rem; letter-spacing:.22em; }
  .nav-toggle-label{ display:none; }
}