/* ========== 1. Reset ========== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body,h1,h2,h3,h4,h5,p,figure,blockquote,ul,ol,dl,dd{margin:0;}
ul,ol{list-style:none;padding:0;}
img,svg,video{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:3px solid var(--juice);outline-offset:3px;}
::selection{background:var(--zest);color:var(--seed);}

/* ========== 2. Tokens ========== */
:root{
  --flesh:#58B947;
  --flesh-deep:#3F9A32;
  --ink:#103B2A;
  --ink-soft:#2C5C45;
  --seed:#071F16;
  --skin:#7B4B2A;
  --skin-soft:#C9A57E;
  --zest:#C8F04A;
  --cream:#F7F7ED;
  --pulp:#DDF1C8;
  --core:#F4E9A6;
  --juice:#F2A93B;

  --shell:1180px;
  --gutter:clamp(16px,4vw,40px);
  --radius-s:10px;
  --radius-m:18px;
  --radius-l:30px;
  --radius-xl:44px;

  --shadow-soft:0 18px 40px -26px rgba(7,31,22,.55);
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-mono:"SFMono-Regular","JetBrains Mono","Roboto Mono",Menlo,Consolas,"Courier New",monospace;
}

/* ========== 3. Base ========== */
body{
  font-family:var(--font-sans);
  font-size:1rem;
  line-height:1.75;
  color:var(--ink);
  background-color:var(--cream);
  background-image:
    radial-gradient(1200px 520px at 15% -8%,rgba(221,241,200,.92),transparent 70%),
    radial-gradient(900px 460px at 88% -4%,rgba(244,233,166,.55),transparent 68%);
  background-repeat:no-repeat;
  background-position:top left,top right;
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{font-weight:800;line-height:1.15;letter-spacing:-.02em;color:var(--ink);}
p{max-width:44em;}

/* ========== 4. Layout ========== */
.shell{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:var(--gutter);}
.page-main{display:block;}
.section{padding-block:clamp(38px,6vw,84px);}
.section--pulp{background:var(--pulp);}
.section--core{background:var(--core);}
.section--ink{background:var(--ink);color:#E9F5DE;}
.section--ink h1,.section--ink h2,.section--ink h3,.section--ink h4{color:var(--cream);}
.section--ink .lede{color:rgba(233,245,222,.84);}
.section--ink .eyebrow{color:var(--zest);}
.section--ink .eyebrow::before{background:var(--zest);}

/* ========== 5. Type utilities ========== */
.display{font-size:clamp(2.6rem,7vw,5.2rem);font-weight:900;line-height:.98;letter-spacing:-.04em;color:var(--ink);}
.title-xl{font-size:clamp(2rem,4.6vw,3.3rem);font-weight:900;line-height:1.06;letter-spacing:-.03em;}
.title-lg{font-size:clamp(1.55rem,3vw,2.2rem);font-weight:800;line-height:1.16;letter-spacing:-.02em;}
.title-md{font-size:clamp(1.15rem,1.8vw,1.4rem);font-weight:800;line-height:1.32;}
.lede{font-size:clamp(1rem,1.4vw,1.15rem);line-height:1.8;color:var(--ink-soft);}
.eyebrow{
  display:inline-flex;align-items:center;gap:.55rem;
  font-family:var(--font-mono);font-size:.78rem;font-weight:700;
  letter-spacing:.16em;color:var(--skin);
}
.eyebrow::before{content:"";width:1.6rem;height:3px;border-radius:2px;background:var(--flesh);}
.mono{font-family:var(--font-mono);letter-spacing:.04em;}
.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;}
.prose{max-width:42em;}
.prose p{margin-bottom:1.1em;}
.prose h3{margin:1.7em 0 .6em;font-size:1.22rem;}
.prose ul{margin:0 0 1.1em;display:grid;gap:.5em;}
.prose ul li{padding-left:1.4em;position:relative;}
.prose ul li::before{content:"";position:absolute;left:0;top:.62em;width:.45em;height:.45em;border-radius:50%;background:var(--flesh);}

/* ========== 6. Buttons ========== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  padding:.78em 1.5em;border-radius:999px;
  font-weight:800;font-size:.95rem;line-height:1.2;
  border:2px solid transparent;
  transition:transform .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn:hover{transform:translateY(-2px);}
.btn--primary{background:var(--flesh);color:#fff;box-shadow:0 12px 24px -16px rgba(16,59,42,.9);}
.btn--primary:hover{background:var(--ink);color:var(--cream);}
.btn--zest{background:var(--zest);color:var(--seed);}
.btn--zest:hover{background:var(--cream);}
.btn--ghost{border-color:var(--skin-soft);color:var(--ink);background:transparent;}
.btn--ghost:hover{border-color:var(--ink);background:var(--core);color:var(--seed);}
.btn-row{display:flex;flex-wrap:wrap;gap:.75rem;align-items:center;}

/* ========== 7. Breadcrumb ========== */
.breadcrumb{margin-block:1.2rem;}
.breadcrumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:.45rem;font-family:var(--font-mono);font-size:.78rem;letter-spacing:.06em;color:var(--skin);}
.breadcrumb-item{display:inline-flex;align-items:center;}
.breadcrumb-item + .breadcrumb-item::before{content:"/";margin-right:.45rem;color:var(--skin-soft);}
.breadcrumb-link{color:var(--ink);border-bottom:1px solid var(--skin-soft);transition:color .18s ease,border-color .18s ease;}
.breadcrumb-link:hover{color:var(--flesh-deep);border-color:var(--flesh);}
.breadcrumb-current{color:var(--skin);font-weight:700;}

/* ========== 8. Grids & index ========== */
.grid{display:grid;gap:clamp(16px,2.4vw,30px);}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr));}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr));}
.grid--seed{grid-template-columns:repeat(auto-fit,minmax(190px,1fr));}
.index-grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));
  gap:2px;background:var(--skin-soft);
  border:2px solid var(--skin-soft);border-radius:var(--radius-m);
  overflow:hidden;
}
.index-cell{
  display:flex;flex-direction:column;gap:.4rem;
  min-height:100%;padding:1rem 1.15rem;
  background:var(--cream);color:var(--ink);
  transition:background-color .18s ease,color .18s ease;
}
.index-cell:hover,.index-cell:focus-visible{background:var(--pulp);}
.index-cell--active{background:var(--zest);}
.index-num{font-family:var(--font-mono);font-size:.74rem;letter-spacing:.12em;color:var(--skin);}
.index-cell--active .index-num{color:var(--seed);}

/* ========== 9. Media containers ========== */
.media{
  position:relative;display:block;overflow:hidden;
  border-radius:var(--radius-l);isolation:isolate;
  background:radial-gradient(circle at 30% 24%,#EAF7D6,#CFE9B4 62%,#B9DD9C);
  box-shadow:var(--shadow-soft);
}
.media::before{
  content:"";position:absolute;inset:0;z-index:0;
  background-image:radial-gradient(rgba(7,31,22,.16) 1.4px,transparent 1.5px);
  background-size:16px 16px;opacity:.55;
}
.media > img{position:relative;z-index:1;width:100%;height:100%;object-fit:cover;}
.media--wide{aspect-ratio:16/9;}
.media--square{aspect-ratio:1/1;border-radius:52% 48% 46% 54% / 50% 52% 48% 50%;}
.media--tall{aspect-ratio:3/4;}
.media-caption{margin-top:.6rem;font-family:var(--font-mono);font-size:.76rem;letter-spacing:.05em;color:var(--skin);}

/* ========== 10. Tags / stamp / notice ========== */
.tag{
  display:inline-flex;align-items:center;gap:.35rem;
  padding:.28em .78em;border-radius:999px;
  font-size:.74rem;font-weight:700;letter-spacing:.04em;
  background:var(--pulp);color:var(--ink);
  border:1px solid rgba(123,75,42,.25);
}
.tag--zest{background:var(--zest);color:var(--seed);border-color:rgba(7,31,22,.2);}
.tag--juice{background:#FBE3BC;color:#7A4A11;border-color:var(--juice);}
.stamp{
  display:inline-flex;align-items:center;gap:.5rem;
  padding:.42em .95em;border-radius:8px;
  background:var(--core);border:2px dashed var(--juice);
  color:var(--skin);font-family:var(--font-mono);
  font-size:.76rem;letter-spacing:.08em;
  transform:rotate(-1.2deg);
}
.notice-strip{
  display:flex;align-items:center;gap:clamp(16px,3vw,34px);
  overflow-x:auto;padding:.9rem 0;
  border-block:2px solid var(--skin);
  scrollbar-width:thin;
  -webkit-overflow-scrolling:touch;
}
.notice-strip::-webkit-scrollbar{height:4px;}
.notice-strip::-webkit-scrollbar-thumb{background:var(--skin-soft);border-radius:99px;}
.notice-item{flex:0 0 auto;display:inline-flex;align-items:center;gap:.6rem;font-size:.85rem;color:var(--ink);}
.notice-item::before{content:"";flex:0 0 auto;width:.5rem;height:.5rem;border-radius:50%;background:var(--flesh);}
.notice-item--new::before{background:var(--juice);}

/* ========== 11. Header ========== */
.skip-link{
  position:fixed;top:0;left:50%;z-index:200;
  transform:translate(-50%,-130%);
  padding:.7em 1.4em;border-radius:0 0 14px 14px;
  background:var(--seed);color:var(--zest);
  font-weight:800;font-size:.88rem;
  transition:transform .2s ease;
}
.skip-link:focus{transform:translate(-50%,0);}
.site-header{position:relative;z-index:60;}
.scroll-progress{
  position:fixed;top:0;left:0;right:0;height:4px;z-index:120;
  transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--flesh),var(--zest));
  pointer-events:none;
}
.header-rail{
  background-color:var(--seed);
  background-image:repeating-linear-gradient(115deg,rgba(200,240,74,.12) 0 1px,transparent 1px 14px);
  color:var(--zest);
}
.rail-inner{
  display:flex;flex-wrap:wrap;align-items:center;
  gap:.5rem 1.4rem;padding-block:.6rem;
  font-size:.8rem;
}
.rail-brand{display:inline-flex;align-items:center;gap:.55rem;max-width:none;font-weight:700;letter-spacing:.04em;color:var(--zest);}
.rail-mark{width:.68rem;height:.68rem;border-radius:50%;background:var(--zest);box-shadow:0 0 0 3px rgba(200,240,74,.22);flex:0 0 auto;}
.rail-meta{display:inline-flex;align-items:center;gap:.8rem;margin-left:auto;}
.rail-pulse{width:.5rem;height:.5rem;border-radius:50%;background:var(--juice);animation:rail-pulse 2.6s ease-in-out infinite;}
@keyframes rail-pulse{
  0%,100%{opacity:1;transform:scale(1);}
  50%{opacity:.45;transform:scale(.65);}
}
.rail-eyebrow{font-family:var(--font-mono);font-size:.75rem;letter-spacing:.1em;color:#EAF6CF;}
.rail-link{
  padding:.26em .85em;border-radius:999px;
  background:var(--zest);color:var(--seed);
  font-weight:800;font-size:.78rem;
  transition:background-color .18s ease,color .18s ease;
}
.rail-link:hover{background:var(--cream);color:var(--seed);}
.header-body{
  position:relative;
  background:var(--cream);
  border-bottom:3px solid var(--skin);
  box-shadow:0 20px 34px -34px rgba(7,31,22,.8);
}
.header-grid{display:flex;align-items:center;gap:1rem;padding-block:1rem .9rem;}
.brand{display:inline-flex;align-items:center;gap:.75rem;min-width:0;}
.brand-seed{
  flex:0 0 auto;width:2.4rem;height:2.4rem;
  border-radius:52% 48% 46% 54% / 48% 52% 48% 52%;
  background-color:var(--flesh);
  background-image:
    radial-gradient(circle at 32% 30%,var(--seed) 0 12%,transparent 13%),
    radial-gradient(circle at 62% 26%,var(--seed) 0 11%,transparent 12%),
    radial-gradient(circle at 47% 54%,var(--seed) 0 13%,transparent 14%),
    radial-gradient(circle at 70% 62%,var(--seed) 0 11%,transparent 12%),
    radial-gradient(circle at 34% 72%,var(--seed) 0 10%,transparent 11%);
  box-shadow:inset 0 0 0 3px rgba(247,247,237,.55),0 10px 20px -14px rgba(7,31,22,.9);
}
.brand-text{display:flex;flex-direction:column;gap:.1rem;min-width:0;}
.brand-name{font-size:1.18rem;font-weight:900;letter-spacing:-.01em;color:var(--ink);line-height:1.2;}
.brand-sub{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.14em;color:var(--skin);line-height:1.2;}
.header-tools{display:flex;align-items:center;gap:.55rem;margin-left:auto;}
.action-chip{
  display:inline-flex;align-items:center;gap:.4rem;
  padding:.56em 1.1em;border-radius:999px;
  border:2px solid var(--flesh);background:var(--flesh);color:#fff;
  font-weight:800;font-size:.85rem;line-height:1.2;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
.action-chip:hover{background:var(--ink);border-color:var(--ink);color:var(--cream);transform:translateY(-2px);}
.action-chip--ghost{background:transparent;color:var(--ink);border-color:var(--skin-soft);}
.action-chip--ghost:hover{background:var(--core);border-color:var(--juice);color:var(--seed);}
.nav-toggle{
  display:none;align-items:center;gap:.5rem;
  padding:.55em .9em;border-radius:14px;
  border:2px solid var(--ink);background:var(--cream);color:var(--ink);
  font-weight:800;font-size:.85rem;
}
.nav-toggle-bars{display:grid;gap:3px;width:1.05rem;}
.nav-toggle-bars span{
  display:block;height:2px;border-radius:2px;background:var(--ink);
  transition:transform .2s ease,opacity .2s ease;
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(1){transform:translateY(5px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(3){transform:translateY(-5px) rotate(-45deg);}
.site-nav{display:flex;flex-wrap:wrap;align-items:center;gap:.7rem 1.2rem;padding-block:.3rem 1rem;}
.nav-list{display:flex;flex-wrap:wrap;gap:.5rem;}
.nav-item{display:flex;}
.nav-link{
  display:inline-flex;align-items:center;gap:.5rem;
  padding:.62em 1.05em;
  border-radius:999px 999px 12px 12px;
  background:var(--pulp);color:var(--ink);
  font-weight:700;font-size:.95rem;letter-spacing:.01em;
  border-bottom:3px solid var(--skin-soft);
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
.nav-link::before{
  content:"";width:.42rem;height:.42rem;border-radius:50%;
  background:currentColor;opacity:.28;flex:0 0 auto;
  transition:opacity .18s ease;
}
.nav-link:hover{background:var(--flesh);color:#fff;border-bottom-color:var(--flesh-deep);transform:translateY(-2px);}
.nav-link:hover::before{opacity:1;}
.nav-link[aria-current="page"]{background:var(--zest);color:var(--seed);border-bottom-color:var(--ink);}
.nav-link[aria-current="page"]::before{opacity:1;}
.nav-note{
  margin-left:auto;max-width:none;
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.1em;color:var(--skin);
}

/* ========== 12. Footer ========== */
.site-footer{
  margin-top:clamp(48px,8vw,110px);
  padding-top:clamp(34px,5vw,64px);
  border-top:6px solid var(--flesh);
  background-color:var(--seed);
  background-image:
    radial-gradient(circle at 8% 10%,rgba(88,185,71,.3),transparent 46%),
    radial-gradient(circle at 92% 0%,rgba(123,75,42,.5),transparent 52%),
    radial-gradient(rgba(200,240,74,.14) 1px,transparent 1.5px);
  background-size:auto,auto,22px 22px;
  background-repeat:no-repeat,no-repeat,repeat;
  color:#E7F3DB;
}
.foot-wrap{
  display:grid;
  grid-template-columns:1.5fr .8fr 1.2fr;
  gap:clamp(24px,4vw,56px);
  padding-bottom:clamp(28px,4vw,52px);
}
.foot-brand{display:flex;flex-direction:column;align-items:flex-start;gap:.55rem;}
.foot-name{font-size:clamp(1.3rem,2.4vw,1.7rem);font-weight:900;letter-spacing:-.01em;color:var(--cream);max-width:none;}
.foot-summary{font-size:.92rem;line-height:1.8;color:rgba(231,243,219,.82);max-width:34ch;}
.foot-tags{display:flex;flex-wrap:wrap;gap:.4rem;margin-top:.5rem;}
.foot-tag{
  padding:.3em .85em;border-radius:999px;
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.08em;
  color:var(--zest);background:rgba(200,240,74,.14);
  border:1px solid rgba(200,240,74,.36);
}
.foot-heading{
  margin-bottom:.9rem;max-width:none;
  font-family:var(--font-mono);font-size:.76rem;font-weight:700;
  letter-spacing:.18em;color:var(--zest);
}
.foot-list{display:grid;gap:.55rem;}
.foot-link{
  font-size:.94rem;color:#D9EBC9;
  border-bottom:1px solid transparent;padding-bottom:2px;
  transition:color .18s ease,border-color .18s ease;
}
.foot-link:hover{color:var(--zest);border-bottom-color:rgba(200,240,74,.55);}
.foot-contact{min-width:0;}
.foot-line{
  display:grid;grid-template-columns:auto minmax(0,1fr);
  gap:.65rem;margin-bottom:.55rem;max-width:none;
  font-size:.87rem;line-height:1.7;color:rgba(231,243,219,.85);
}
.foot-label{font-size:.72rem;letter-spacing:.1em;color:var(--skin-soft);padding-top:.24em;}
.foot-value{min-width:0;overflow-wrap:anywhere;}
.foot-value--mono{font-family:var(--font-mono);letter-spacing:.03em;color:#F1F8E5;}
.foot-note{
  margin-top:.9rem;max-width:34ch;
  padding-left:.75rem;border-left:2px solid var(--flesh);
  font-size:.78rem;line-height:1.7;color:rgba(231,243,219,.62);
}
.foot-base{border-top:1px solid rgba(231,243,219,.16);background:rgba(0,0,0,.18);}
.foot-base-inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:.5rem 1.4rem;padding-block:1.1rem;
  font-size:.78rem;color:rgba(231,243,219,.66);
}
.foot-copy{max-width:none;}
.foot-legal{max-width:none;font-family:var(--font-mono);letter-spacing:.06em;}

/* ========== 13. Runtime components ========== */
.back-to-top{
  position:fixed;right:clamp(14px,3vw,28px);bottom:clamp(14px,3vw,28px);z-index:110;
  display:inline-flex;align-items:center;gap:.45rem;
  padding:.7em 1.15em;border-radius:999px;
  border:2px solid var(--ink);background:var(--zest);color:var(--seed);
  font-weight:800;font-size:.82rem;
  box-shadow:0 16px 30px -18px rgba(7,31,22,.9);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .22s ease,transform .22s ease,visibility .22s;
}
.back-to-top.is-on{opacity:1;visibility:visible;transform:none;}
.back-to-top:hover{background:var(--cream);}
.js-ready [data-reveal]{
  opacity:0;transform:translateY(18px);
  transition:opacity .6s ease,transform .6s cubic-bezier(.2,.7,.3,1);
}
.js-ready [data-reveal].is-visible{opacity:1;transform:none;}

/* ========== 14. Responsive ========== */
@media (max-width:1040px){
  .foot-wrap{grid-template-columns:1fr 1fr;}
  .foot-contact{grid-column:1 / -1;}
  .foot-note{max-width:52ch;}
}
@media (max-width:899px){
  .header-grid{flex-wrap:wrap;row-gap:.7rem;}
  .nav-toggle{display:inline-flex;}
  .action-chip--ghost{display:none;}
  .site-nav{
    display:none;
    flex-direction:column;align-items:stretch;gap:.6rem;
    padding-block:.2rem 1rem;
  }
  .site-nav[data-open="true"]{display:flex;}
  .nav-list{flex-direction:column;gap:.45rem;}
  .nav-link{
    justify-content:flex-start;width:100%;
    border-radius:14px;border-bottom-width:2px;
  }
  .nav-note{margin-left:0;padding-top:.2rem;}
}
@media (max-width:860px){
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:620px){
  body{font-size:1rem;}
  .grid--2,.grid--3{grid-template-columns:1fr;}
  .brand-sub{display:none;}
  .action-chip{display:none;}
  .rail-meta{margin-left:0;flex-wrap:wrap;}
  .rail-brand{font-size:.76rem;}
  .foot-wrap{grid-template-columns:1fr;}
  .foot-base-inner{justify-content:flex-start;}
  .media--tall{aspect-ratio:4/5;}
}

/* ========== 15. Motion preference ========== */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .js-ready [data-reveal]{opacity:1;transform:none;}
  .rail-pulse{animation:none;}
}