:root{
  --bs-green:#0B3D2E;
  --bs-green-deep:#082A1F;
  --bs-cream:#F7F3E8;
  --bs-gray:#E0DCD3;
  --bs-gold:#D4AF37;
  --bs-orange:#FF6B35;
  --bs-black:#141414;
  --bs-white:#FFFFFF;
  --bs-data-green:#00E676;
  --bs-font-head:Impact,'Anton','Noto Sans SC',sans-serif;
  --bs-font-body:'Inter','Noto Sans SC',system-ui,sans-serif;
  --bs-font-mono:'Roboto Mono','Noto Sans SC',monospace;
  --bs-track-w:72px;
  --bs-content-max:1400px;
  --bs-gutter:clamp(20px,4vw,60px);
  --bs-ease:cubic-bezier(.2,.8,.2,1);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--bs-font-body);
  background:
    linear-gradient(135deg,var(--bs-green-deep) 0%,var(--bs-green) 55%,var(--bs-green-deep) 100%);
  color:var(--bs-black);
  line-height:1.6;
  min-height:100vh;
}
img,svg{display:block;max-width:100%;height:auto}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
:focus-visible{outline:3px solid var(--bs-orange);outline-offset:3px;border-radius:2px}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* ========== 共享布局骨架 ========== */
.bs-header{
  position:fixed;
  inset:0 auto 0 0;
  width:var(--bs-track-w);
  z-index:1000;
  background:
    linear-gradient(180deg,var(--bs-green) 0%,var(--bs-green-deep) 100%);
  border-right:1px solid rgba(212,175,55,.35);
  box-shadow:10px 0 30px rgba(0,0,0,.25);
  transition:transform .45s var(--bs-ease);
}
.bs-header__inner{
  display:flex;
  flex-direction:column;
  height:100%;
  align-items:center;
  justify-content:space-between;
  padding:18px 0 22px;
}
.bs-header__brand{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:6px;
  text-decoration:none;
}
.bs-header__brand-mark{
  display:grid;
  place-items:center;
  width:44px;
  height:44px;
  border:2px solid var(--bs-gold);
  background:var(--bs-green-deep);
  color:var(--bs-gold);
  font-family:var(--bs-font-head);
  font-size:1.6rem;
  font-weight:900;
  letter-spacing:.06em;
  transform:rotate(-6deg);
  transition:transform .3s var(--bs-ease);
}
.bs-header__brand:hover .bs-header__brand-mark{
  transform:rotate(6deg) scale(1.05);
}
.bs-header__tagline{
  writing-mode:vertical-rl;
  text-orientation:upright;
  color:var(--bs-cream);
  font-size:.62rem;
  letter-spacing:.28em;
  opacity:.7;
  margin-top:6px;
}
.bs-nav-toggle{
  display:none;
  width:44px;
  height:44px;
  background:rgba(247,243,232,.08);
  border:1px solid rgba(247,243,232,.2);
  border-radius:6px;
  position:relative;
}
.bs-nav-toggle__line{
  display:block;
  width:20px;
  height:2px;
  background:var(--bs-cream);
  margin:4px auto;
  transition:transform .3s var(--bs-ease),opacity .3s;
}
.bs-nav-toggle__sr{
  position:absolute;
  width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);
}
.bs-nav{
  margin-top:12px;
  flex:1 1 auto;
}
.bs-nav__list{
  display:flex;
  flex-direction:column;
  gap:4px;
  padding:0 8px;
}
.bs-nav__link{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:center;
  writing-mode:vertical-rl;
  text-orientation:upright;
  padding:16px 6px;
  color:var(--bs-cream);
  font-size:.78rem;
  font-weight:500;
  letter-spacing:.18em;
  opacity:.72;
  border-radius:4px;
  transition:opacity .25s,background .25s,color .25s;
}
.bs-nav__link::after{
  content:"";
  position:absolute;
  inset:12% auto 12% -8px;
  width:3px;
  background:var(--bs-gold);
  border-radius:0 3px 3px 0;
  opacity:0;
  transform:scaleY(.2);
  transition:opacity .3s,transform .3s var(--bs-ease);
}
.bs-nav__link:hover,.bs-nav__link[aria-current="page"]{
  opacity:1;
  color:var(--bs-white);
  background:rgba(212,175,55,.12);
}
.bs-nav__link[aria-current="page"]::after{
  opacity:1;
  transform:scaleY(1);
}
.bs-header__foot{
  display:grid;
  gap:8px;
  justify-items:center;
}
.bs-season-tag{
  display:inline-flex;
  align-items:center;
  gap:4px;
  background:var(--bs-green-deep);
  border:1px solid rgba(212,175,55,.4);
  color:var(--bs-gold);
  padding:6px 8px;
  border-radius:30px;
  font-size:.68rem;
  font-weight:600;
}
.bs-season-tag strong{
  font-family:var(--bs-font-mono);
  font-size:.9em;
}
.bs-updated-dot{
  width:8px;
  height:8px;
  border-radius:50%;
  background:var(--bs-orange);
  box-shadow:0 0 0 0 rgba(255,107,53,.6);
  animation:bs-pulse 2s infinite;
}
@keyframes bs-pulse{
  0%{box-shadow:0 0 0 0 rgba(255,107,53,.5)}
  70%{box-shadow:0 0 0 10px rgba(255,107,53,0)}
  100%{box-shadow:0 0 0 0 rgba(255,107,53,0)}
}
.bs-topbar{
  position:fixed;
  top:0;
  left:var(--bs-track-w);
  right:0;
  z-index:999;
  height:52px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:0 var(--bs-gutter);
  background:rgba(8,42,31,.95);
  border-bottom:1px solid rgba(212,175,55,.3);
  backdrop-filter:blur(8px);
  color:var(--bs-cream);
}
.bs-topbar__title{
  font-size:.9rem;
  font-weight:600;
  letter-spacing:.12em;
}
.bs-topbar__title::before{
  content:"";
  display:inline-block;
  width:8px;height:8px;
  background:var(--bs-data-green);
  border-radius:2px;
  margin-right:10px;
  transform:skewX(-20deg);
}
.bs-topbar__meta{
  font-size:.75rem;
  color:var(--bs-gold);
  border:1px solid rgba(212,175,55,.45);
  padding:3px 12px;
  border-radius:20px;
  letter-spacing:.08em;
}
.bs-skip-link{
  position:fixed;
  top:-100px;
  left:20px;
  z-index:2000;
  background:var(--bs-orange);
  color:var(--bs-white);
  padding:12px 20px;
  font-weight:600;
  border-radius:0 0 6px 6px;
  transition:top .3s;
}
.bs-skip-link:focus{
  top:0;
}

/* ========== 移动断点 ========== */
@media (max-width: 900px){
  .bs-header{
    inset:0 0 auto 0;
    width:100%;
    height:72px;
    border-right:none;
    border-bottom:1px solid rgba(212,175,55,.3);
    box-shadow:0 10px 30px rgba(0,0,0,.2);
  }
  .bs-header__inner{
    flex-direction:row;
    padding:10px 18px;
    position:relative;
  }
  .bs-header__brand{
    flex-direction:row;
    gap:10px;
  }
  .bs-header__brand-mark{
    width:38px;height:38px;
    font-size:1.3rem;
    transform:rotate(-4deg);
  }
  .bs-header__tagline{
    writing-mode:horizontal-tb;
    font-size:.58rem;
    margin:0;
    letter-spacing:.16em;
  }
  .bs-nav-toggle{
    display:block;
  }
  .bs-nav{
    position:absolute;
    top:72px;
    left:0;
    right:0;
    background:var(--bs-green-deep);
    border-bottom:1px solid rgba(212,175,55,.4);
    padding:0 20px;
    max-height:0;
    overflow:hidden;
    transition:max-height .4s var(--bs-ease),padding .4s var(--bs-ease);
  }
  .bs-header[data-open="true"] .bs-nav{
    max-height:calc(100vh - 72px);
    padding:16px 20px 28px;
    overflow-y:auto;
  }
  .bs-nav__list{
    flex-direction:column;
    gap:8px;
  }
  .bs-nav__link{
    writing-mode:horizontal-tb;
    justify-content:flex-start;
    padding:14px 16px;
    font-size:.9rem;
    opacity:.85;
  }
  .bs-nav__link::after{
    inset:auto auto -4px 12%;
    width:auto;height:3px;
    transform:scaleX(.2);
  }
  .bs-nav__link[aria-current="page"]::after{
    transform:scaleX(1);
  }
  .bs-header__foot{
    display:none;
  }
  .bs-topbar{
    top:72px;
    left:0;
    height:44px;
    padding:0 18px;
  }
  .bs-topbar__meta{
    display:none;
  }
}

/* ========== 页脚 ========== */
.bs-footer{
  background:
    linear-gradient(160deg,var(--bs-green-deep) 0%,var(--bs-green) 70%);
  color:var(--bs-cream);
  margin-left:var(--bs-track-w);
  border-top:1px solid var(--bs-gold);
  position:relative;
  z-index:2;
}
.bs-footer::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:3px;
  background:linear-gradient(90deg,var(--bs-gold) 0%,var(--bs-orange) 50%,transparent 100%);
}
.bs-footer__inner{
  max-width:var(--bs-content-max);
  margin:0 auto;
  padding:48px var(--bs-gutter) 24px;
  display:grid;
  gap:40px;
}
.bs-footer__brand{
  border-left:4px solid var(--bs-gold);
  padding-left:16px;
}
.bs-footer__logo{
  display:inline-flex;
  flex-direction:column;
  gap:4px;
}
.bs-footer__logo-mark{
  font-family:var(--bs-font-head);
  font-weight:900;
  font-size:2rem;
  letter-spacing:.06em;
  color:var(--bs-white);
}
.bs-footer__logo-sub{
  font-size:.78rem;
  color:var(--bs-gold);
  letter-spacing:.18em;
}
.bs-footer__columns{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:32px;
}
.bs-footer__heading{
  font-size:.8rem;
  font-weight:600;
  color:var(--bs-gold);
  letter-spacing:.16em;
  text-transform:uppercase;
  margin-bottom:16px;
  padding-bottom:8px;
  border-bottom:1px solid rgba(247,243,232,.15);
}
.bs-footer__links li{
  margin-bottom:10px;
}
.bs-footer__links a{
  font-size:.88rem;
  opacity:.82;
  transition:opacity .2s,padding-left .25s var(--bs-ease);
}
.bs-footer__links a:hover{
  opacity:1;
  color:var(--bs-orange);
  padding-left:6px;
}
.bs-footer__note{
  margin-top:16px;
  font-size:.75rem;
  color:var(--bs-gray);
  line-height:1.7;
}
.bs-footer__bottom{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  align-items:center;
  justify-content:space-between;
  padding-top:24px;
  border-top:1px solid rgba(247,243,232,.12);
}
.bs-footer__copy,.bs-footer__icp{
  font-size:.75rem;
  color:var(--bs-gray);
}
.bs-footer__icp a{
  color:var(--bs-cream);
  border-bottom:1px dotted var(--bs-gold);
}
@media (max-width: 900px){
  .bs-footer{
    margin-left:0;
    margin-bottom:0;
  }
  .bs-footer__columns{
    grid-template-columns:1fr 1fr;
    gap:24px;
  }
  .bs-footer__col:last-child{
    grid-column:1/-1;
  }
}
@media (max-width: 600px){
  .bs-footer__inner{
    padding:36px 20px 20px;
  }
  .bs-footer__columns{
    grid-template-columns:1fr;
    gap:20px;
  }
  .bs-footer__bottom{
    flex-direction:column;
    align-items:flex-start;
  }
}

/* ========== 通用内容组件 ========== */
.bs-main-wrap{
  margin-left:var(--bs-track-w);
  padding-top:52px;
  min-height:calc(100vh - 52px);
  background:
    linear-gradient(135deg,var(--bs-cream) 0%,#FDFBF4 38%,var(--bs-gray) 100%);
  position:relative;
  z-index:1;
}
.bs-main-wrap::before{
  content:"";
  position:absolute;
  top:0;right:0;width:24vw;height:18vh;
  background:radial-gradient(circle at 100% 0%,rgba(212,175,55,.14),transparent 70%);
  pointer-events:none;
}
#main-content{
  position:relative;
  z-index:1;
}
.bs-container{
  max-width:var(--bs-content-max);
  margin:0 auto;
  padding:clamp(24px,5vw,72px) var(--bs-gutter);
}
.bs-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 26px;
  font-weight:600;
  font-size:.92rem;
  border-radius:4px;
  letter-spacing:.04em;
  transition:transform .25s var(--bs-ease),box-shadow .25s,background .25s;
  position:relative;
}
.bs-btn.mod-primary{
  background:var(--bs-orange);
  color:var(--bs-white);
  box-shadow:0 4px 0 #A84315;
}
.bs-btn.mod-primary:hover{
  transform:translateY(-2px);
  box-shadow:0 6px 0 #A84315;
}
.bs-btn.mod-primary:active{
  transform:translateY(2px);
  box-shadow:0 1px 0 #A84315;
}
.bs-btn.mod-ghost{
  background:transparent;
  color:var(--bs-green);
  border:2px solid var(--bs-green);
}
.bs-btn.mod-ghost:hover{
  background:rgba(11,61,46,.08);
  transform:translateY(-2px);
}
.bs-btn.mod-ghost:active{
  transform:translateY(2px);
}
.bs-card{
  background:var(--bs-cream);
  border:1px solid rgba(11,61,46,.2);
  border-left:5px solid var(--bs-green);
  padding:24px 28px;
  box-shadow:
    0 1px 3px rgba(8,42,31,.08),
    0 8px 24px rgba(8,42,31,.06);
  position:relative;
  transition:transform .35s var(--bs-ease),box-shadow .35s;
}
.bs-card::before{
  content:"";
  position:absolute;
  top:-1px;right:-1px;
  width:18px;height:18px;
  border-top:3px solid var(--bs-gold);
  border-right:3px solid var(--bs-gold);
  opacity:.7;
}
.bs-card:hover{
  transform:translateY(-4px) rotate(-0.5deg);
  box-shadow:
    0 2px 4px rgba(8,42,31,.1),
    0 18px 40px rgba(8,42,31,.12);
}
.bs-card.mod-accent{
  border-top:3px solid var(--bs-gold);
}
.bs-tag{
  display:inline-block;
  font-family:var(--bs-font-mono);
  font-size:.68rem;
  font-weight:700;
  letter-spacing:.12em;
  padding:4px 12px;
  border-radius:2px;
  text-transform:uppercase;
  border:1px solid transparent;
}
.bs-tag.mod-gold{
  background:rgba(212,175,55,.15);
  color:#8F6C00;
  border-color:rgba(212,175,55,.6);
}
.bs-tag.mod-orange{
  background:rgba(255,107,53,.12);
  color:#C84412;
  border-color:rgba(255,107,53,.5);
}
.bs-section-label{
  display:flex;
  align-items:baseline;
  gap:14px;
  margin-bottom:24px;
  border-bottom:2px solid var(--bs-green);
  padding-bottom:10px;
}
.bs-section-label__index{
  font-family:var(--bs-font-mono);
  font-size:.85rem;
  color:var(--bs-orange);
  font-weight:700;
}
.bs-section-label__title{
  font-family:var(--bs-font-head);
  font-weight:900;
  font-size:clamp(1.6rem,3vw,2.6rem);
  color:var(--bs-green);
  line-height:1.1;
  text-transform:uppercase;
}
.bs-section-label__note{
  font-size:.75rem;
  font-style:italic;
  color:var(--bs-black);
  opacity:.55;
  margin-left:auto;
  writing-mode:horizontal-tb;
}
.bs-image-frame{
  position:relative;
  overflow:hidden;
  background:
    linear-gradient(135deg,var(--bs-green-deep) 0%,var(--bs-green) 100%);
  border:1px solid var(--bs-gold);
  min-height:180px;
  display:flex;
  align-items:center;
  justify-content:center;
}
.bs-image-frame::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(45deg,transparent 48%,rgba(212,175,55,.14) 48%,rgba(212,175,55,.14) 52%,transparent 52%),
    linear-gradient(-45deg,transparent 48%,rgba(247,243,232,.06) 48%,rgba(247,243,232,.06) 52%,transparent 52%);
  background-size:28px 28px;
  pointer-events:none;
}
.bs-image-frame img{
  position:relative;
  z-index:1;
  width:100%;
  height:100%;
  object-fit:cover;
}
.bs-reveal{
  opacity:0;
  transform:translateY(28px);
  transition:opacity .6s ease,transform .6s var(--bs-ease);
}
.bs-reveal[data-revealed="true"]{
  opacity:1;
  transform:none;
}
@media (prefers-reduced-motion:reduce){
  .bs-reveal{
    opacity:1;
    transform:none;
  }
}
.bs-tabs__panel{
  display:none;
}
.bs-tabs__panel[data-active="true"]{
  display:block;
}
.bs-accordion__content{
  display:none;
  overflow:hidden;
}
.bs-accordion__item[data-open="true"] .bs-accordion__content{
  display:block;
}
.bs-accordion__trigger{
  width:100%;
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:18px 4px;
  font-weight:600;
  font-size:1rem;
  border-bottom:2px solid transparent;
  text-align:left;
  transition:border-color .3s,color .3s;
}
.bs-accordion__item[data-open="true"] .bs-accordion__trigger{
  color:var(--bs-green);
  border-bottom-color:var(--bs-gold);
}
.bs-accordion__icon{
  width:10px;
  height:10px;
  border-right:2px solid currentColor;
  border-bottom:2px solid currentColor;
  transform:rotate(45deg) translateY(-2px);
  transition:transform .35s var(--bs-ease);
}
.bs-accordion__item[data-open="true"] .bs-accordion__icon{
  transform:rotate(225deg) translateY(-2px);
}
.bs-breadcrumb{
  display:flex;
  flex-wrap:wrap;
  gap:6px;
  font-size:.78rem;
  color:var(--bs-black);
  opacity:.6;
  margin-bottom:24px;
}
.bs-breadcrumb a:hover{
  color:var(--bs-orange);
  text-decoration:underline;
}
.bs-breadcrumb__sep{
  margin:0 2px;
}

/* ========== 辅助工具类 ========== */
.bs-grid{
  display:grid;
  gap:28px;
}
.bs-grid.cols-2{
  grid-template-columns:repeat(2,1fr);
}
.bs-grid.cols-3{
  grid-template-columns:repeat(3,1fr);
}
.bs-text-num{
  font-family:var(--bs-font-mono);
  font-variant-numeric:tabular-nums;
}
.bs-sr{
  position:absolute;
  width:1px;height:1px;
  overflow:hidden;
  clip:rect(0 0 0 0);
  white-space:nowrap;
}
@media (max-width: 900px){
  .bs-main-wrap{
    margin-left:0;
    padding-top:116px;
  }
  .bs-grid.cols-2,.bs-grid.cols-3{
    grid-template-columns:1fr;
  }
  .bs-section-label__note{
    display:none;
  }
}
@media (min-width: 901px) and (max-width: 1200px){
  .bs-grid.cols-3{
    grid-template-columns:repeat(2,1fr);
  }
}