*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h,78px) + 18px)}
body,h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{list-style:none;padding:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0}
img,svg,iframe{display:block;max-width:100%}
:focus-visible{outline:2px solid var(--lake-blue);outline-offset:3px;border-radius:6px}

:root{
  --paper-cream:#FFF6E8;
  --cream-soft:#FFFBF2;
  --apricot:#F29A3D;
  --apricot-deep:#C65A12;
  --lake-blue:#1C7C86;
  --lake-deep:#0F5A63;
  --warm-sand:#E6C27A;
  --ink-teal:#173B3E;
  --brown-black:#2B2119;
  --paper-line:#E5D6BD;
  --card-white:#FFFFFF;
  --text-muted:#6B5B4B;

  --shell:1200px;
  --gutter:clamp(16px,4vw,40px);
  --header-h:78px;

  --radius-pill:999px;
  --radius-xl:26px;
  --radius-lg:18px;
  --radius-md:12px;
  --radius-sm:8px;

  --hairline:1px solid var(--paper-line);
  --shadow-float:0 1px 0 rgba(43,33,25,.05),0 14px 30px -22px rgba(43,33,25,.55);
  --shadow-card:0 1px 0 rgba(43,33,25,.04),0 10px 22px -20px rgba(43,33,25,.5);

  --fs-display:clamp(40px,6vw,72px);
  --fs-h2:clamp(28px,4vw,40px);
  --fs-h3:clamp(20px,2.2vw,24px);
  --fs-body:clamp(16px,calc(12px + 1.05vw),18px);
  --fs-small:14.5px;
  --fs-mono:12.5px;

  --font-display:"Noto Sans SC","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:"IBM Plex Mono","JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}

body{
  min-height:100vh;
  font-family:var(--font-body);
  font-size:var(--fs-body);
  line-height:1.75;
  color:var(--brown-black);
  background-color:var(--paper-cream);
  background-image:radial-gradient(rgba(43,33,25,.038) 1px,transparent 1px);
  background-size:26px 26px;
  padding-top:calc(var(--header-h) + 4px);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

h1,h2,h3,h4{font-family:var(--font-display);font-weight:800;line-height:1.25;letter-spacing:-.01em}
h1{font-size:var(--fs-display)}
h2{font-size:var(--fs-h2)}
h3{font-size:var(--fs-h3);line-height:1.35}
p{max-width:76ch}

.shell{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:var(--gutter)}
.page-main{padding-block:clamp(24px,4vw,52px)}
.mono{font-family:var(--font-mono);font-size:var(--fs-mono);letter-spacing:.08em}

.skip-link{
  position:fixed;top:10px;left:50%;z-index:200;
  transform:translate(-50%,-180%);
  padding:10px 20px;border-radius:var(--radius-pill);
  background:var(--ink-teal);color:var(--paper-cream);
  font-size:14px;font-weight:600;white-space:nowrap;
  box-shadow:var(--shadow-float);
  transition:transform .18s ease;
}
.skip-link:focus{transform:translate(-50%,0)}

.read-progress{
  position:fixed;top:0;left:0;right:0;height:3px;z-index:120;
  background:rgba(229,214,189,.55);pointer-events:none;
}
.read-progress__bar{
  display:block;height:100%;width:0;
  background:linear-gradient(90deg,var(--apricot),var(--apricot-deep) 45%,var(--lake-blue));
  transition:width .12s linear;
}

/* ---------- header ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:100;padding-top:10px;pointer-events:none}
.header-shell{position:relative;z-index:2;pointer-events:none}
.header-float{
  position:relative;pointer-events:auto;
  display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;
  gap:clamp(10px,2vw,20px);
  min-height:58px;padding:9px 10px 9px 12px;
  background:rgba(255,246,232,.94);
  border:var(--hairline);border-radius:var(--radius-pill);
  box-shadow:var(--shadow-float);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  transition:min-height .2s ease,background-color .2s ease,box-shadow .2s ease;
}
.site-header[data-scrolled="true"] .header-float{
  min-height:50px;background:rgba(255,251,242,.98);
  box-shadow:0 10px 24px -20px rgba(43,33,25,.6);
}

.brand-island{
  display:inline-flex;align-items:center;gap:10px;
  padding:5px 10px 5px 6px;border-radius:var(--radius-pill);
  transition:background-color .18s ease;
}
.brand-island:hover{background:rgba(242,154,61,.16)}
.brand-mark{
  position:relative;flex:none;width:32px;height:32px;border-radius:50%;
  background:radial-gradient(circle at 34% 30%,#FFC078 0 46%,var(--apricot) 47% 100%);
  box-shadow:inset 0 0 0 1px rgba(43,33,25,.14),0 4px 10px -8px rgba(198,90,18,.9);
}
.brand-mark::after{
  content:"";position:absolute;inset:7px;border-radius:50%;
  border:1px solid rgba(255,246,232,.9);
  border-right-color:transparent;border-bottom-color:transparent;
  transform:rotate(-18deg);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-family:var(--font-display);font-weight:800;font-size:16px;letter-spacing:.02em;color:var(--brown-black)}
.brand-sub{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.1em;color:var(--lake-deep)}

.nav-toggle{
  display:none;align-items:center;gap:8px;
  padding:9px 12px;border:var(--hairline);border-radius:var(--radius-pill);
  background:var(--card-white);cursor:pointer;transition:border-color .18s ease;
}
.nav-toggle:hover{border-color:var(--apricot)}
.nav-toggle__bars{display:inline-flex;flex-direction:column;justify-content:center;gap:3px;width:16px;height:14px}
.nav-toggle__bars span{display:block;height:2px;border-radius:2px;background:var(--brown-black);transition:transform .2s ease,opacity .2s ease}
.nav-toggle__label{font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;color:var(--lake-deep)}
.site-header[data-open="true"] .nav-toggle__bars span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.site-header[data-open="true"] .nav-toggle__bars span:nth-child(2){opacity:0}
.site-header[data-open="true"] .nav-toggle__bars span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

.nav-band{display:flex;align-items:center;justify-content:center;gap:6px;min-width:0}
.nav-band__list{display:flex;align-items:center;gap:2px;min-width:0}
.nav-link{
  position:relative;display:inline-flex;align-items:center;gap:6px;
  padding:8px 11px;border-radius:var(--radius-pill);
  font-size:14.5px;font-weight:500;color:var(--brown-black);white-space:nowrap;
  transition:background-color .18s ease,color .18s ease;
}
.nav-link::before{
  content:"";width:6px;height:6px;flex:none;border-radius:2px;
  background:var(--paper-line);
  transition:background-color .18s ease,transform .18s ease;
}
.nav-link[data-tone="apricot"]::before{background:var(--apricot)}
.nav-link[data-tone="lake"]::before{background:var(--lake-blue)}
.nav-link[data-tone="sand"]::before{background:var(--warm-sand)}
.nav-link[data-tone="ink"]::before{background:var(--ink-teal)}
.nav-link:hover{background:rgba(242,154,61,.16)}
.nav-link:hover::before{transform:rotate(45deg)}
.nav-link[aria-current="page"]{background:var(--ink-teal);color:var(--paper-cream)}
.nav-link[aria-current="page"]::before{background:var(--warm-sand);transform:rotate(45deg)}
.nav-link[aria-current="page"]:focus-visible{outline-color:var(--apricot)}
.nav-band__cta{display:none}

.header-actions{display:flex;align-items:center;gap:14px;justify-self:end}
.header-note{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;
  color:var(--lake-deep);white-space:nowrap;max-width:none;
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:var(--font-body);font-weight:700;font-size:15px;line-height:1;letter-spacing:.01em;
  padding:13px 20px;border-radius:var(--radius-pill);border:1px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn--sm{padding:10px 16px;font-size:14px}
.btn--primary{
  background:var(--apricot-deep);border-color:var(--apricot-deep);color:#fff;
  box-shadow:0 10px 18px -14px rgba(198,90,18,.95);
}
.btn--primary:hover{background:#A9490B;border-color:#A9490B}
.btn--outline{background:transparent;border-color:rgba(43,33,25,.4);color:var(--brown-black)}
.btn--outline:hover{background:rgba(43,33,25,.08)}
.btn--quiet{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;font-weight:500;
  padding:9px 14px;border:1px solid rgba(255,246,232,.3);
  color:rgba(255,246,232,.86);background:transparent;
}
.btn--quiet:hover{border-color:var(--warm-sand);color:var(--warm-sand)}

/* ---------- footer ---------- */
.site-footer{position:relative;margin-top:clamp(48px,8vw,96px);background:var(--ink-teal);color:#F2E9DA}
.footer-feedback{
  background:linear-gradient(100deg,var(--warm-sand),#EFCF92 55%,#F6DFAE);
  color:var(--brown-black);
  border-top:1px solid rgba(43,33,25,.12);
  border-bottom:1px solid rgba(43,33,25,.12);
}
.footer-feedback__inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:clamp(14px,3vw,32px);flex-wrap:wrap;
  padding-block:clamp(16px,2.4vw,22px);
}
.footer-feedback__text{margin:0;font-size:var(--fs-small);color:#3A2C1E;max-width:56ch}
.footer-feedback__actions{display:flex;gap:10px;flex-wrap:wrap}

.footer-main{background:var(--ink-teal)}
.footer-grid{
  display:grid;grid-template-columns:1.3fr .7fr .7fr .7fr 1.45fr;
  gap:clamp(20px,3vw,40px);
  padding-block:clamp(34px,5vw,60px);
}
.footer-brand__mark{
  display:block;width:38px;height:38px;border-radius:50%;
  background:radial-gradient(circle at 34% 30%,var(--apricot) 0 52%,var(--apricot-deep) 53% 100%);
  box-shadow:0 0 0 1px rgba(255,246,232,.22),0 0 0 7px rgba(28,124,134,.38);
}
.footer-brand__name{font-family:var(--font-display);font-weight:800;font-size:20px;margin-top:16px;color:#FFF6E8}
.footer-brand__note{
  font-family:var(--font-mono);font-size:11.5px;line-height:1.75;
  color:rgba(255,246,232,.62);margin-top:6px;max-width:24ch;
}
.footer-brand .btn--quiet{margin-top:16px}

.footer-col__title{
  display:flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-weight:600;font-size:11.5px;letter-spacing:.16em;
  color:var(--warm-sand);margin-bottom:14px;
}
.footer-col__title::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--apricot);flex:none}
.footer-col__list{display:grid;gap:10px}
.footer-link{
  font-size:15px;color:rgba(255,246,232,.82);
  transition:color .18s ease,text-decoration-color .18s ease;
  text-decoration:underline;text-decoration-color:transparent;text-underline-offset:4px;
}
.footer-link:hover{color:var(--warm-sand);text-decoration-color:var(--apricot)}

.footer-contact__list{display:grid;gap:14px}
.footer-contact__item{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:4px 10px}
.footer-contact__label{
  grid-column:1/-1;font-family:var(--font-mono);font-size:10.5px;letter-spacing:.14em;
  color:rgba(230,194,122,.85);
}
.footer-contact__value{font-size:14.5px;color:rgba(255,246,232,.92);word-break:break-word}
.copy-btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:6px 11px;border-radius:var(--radius-pill);
  border:1px solid rgba(255,246,232,.24);background:rgba(255,246,232,.08);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;
  color:rgba(255,246,232,.9);cursor:pointer;
  transition:border-color .18s ease,color .18s ease,background-color .18s ease;
}
.copy-btn:hover{border-color:var(--apricot);color:var(--warm-sand);background:rgba(242,154,61,.16)}
.footer-contact__note{font-size:12.5px;line-height:1.75;color:rgba(255,246,232,.58);margin-top:14px;max-width:32ch}
.copy-status{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.04em;color:var(--warm-sand);min-height:1.3em;margin-top:6px}

.footer-legal{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 24px;
  padding-block:18px;border-top:1px solid rgba(255,246,232,.14);
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.04em;
  color:rgba(255,246,232,.6);
}
.footer-legal__text{margin:0;max-width:none}
.footer-legal__links{display:flex;flex-wrap:wrap;gap:18px;margin-left:auto}
.footer-legal__links .footer-link{font-family:var(--font-mono);font-size:11.5px;color:rgba(255,246,232,.66)}

.site-footer :focus-visible{outline-color:var(--warm-sand)}

/* ---------- shared page components ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--lake-deep);
}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--apricot);flex:none}

.section{padding-block:clamp(36px,6vw,72px)}
.section--band{background:var(--cream-soft);border-block:var(--hairline)}
.section--ink{background:var(--ink-teal);color:var(--paper-cream)}
.section-head{
  display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:clamp(14px,3vw,36px);align-items:end;
  margin-bottom:clamp(20px,3vw,34px);
}
.section-index{
  display:block;margin-bottom:10px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;color:var(--apricot-deep);
}
.section-title{font-family:var(--font-display);font-weight:800;font-size:var(--fs-h2);line-height:1.24}
.section-lead{font-size:15.5px;line-height:1.8;color:var(--text-muted)}
.section--ink .section-title{color:var(--paper-cream)}
.section--ink .section-lead{color:rgba(255,246,232,.72)}
.section--ink .section-index{color:var(--warm-sand)}

.grid{display:grid;gap:clamp(14px,2.2vw,24px)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--split{grid-template-columns:minmax(0,7fr) minmax(0,5fr);align-items:start}

.card{
  position:relative;background:var(--card-white);
  border:var(--hairline);border-radius:var(--radius-lg);
  padding:clamp(16px,2.2vw,24px);
  box-shadow:var(--shadow-card);
}
.card__title{font-family:var(--font-display);font-weight:700;font-size:var(--fs-h3);line-height:1.35}
.card__text{font-size:15px;line-height:1.78;color:var(--text-muted);margin-top:8px}
.card__meta{
  display:block;margin-top:14px;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em;color:var(--lake-deep);
}
.card--link{display:block;transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease}
.card--link:hover{transform:translateY(-2px);border-color:var(--apricot);box-shadow:0 18px 34px -26px rgba(43,33,25,.7)}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 10px;border-radius:var(--radius-pill);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;
  border:1px solid transparent;background:rgba(43,33,25,.07);color:var(--brown-black);
}
.tag--apricot{background:rgba(242,154,61,.22);border-color:rgba(198,90,18,.28);color:#8F3F0A}
.tag--lake{background:rgba(28,124,134,.16);border-color:rgba(28,124,134,.3);color:var(--lake-deep)}
.tag--sand{background:rgba(230,194,122,.34);border-color:rgba(198,90,18,.18);color:#6B4A12}

.media-frame{
  position:relative;overflow:hidden;
  border:var(--hairline);border-radius:var(--radius-lg);
  background:linear-gradient(140deg,rgba(242,154,61,.2),rgba(28,124,134,.16));
  aspect-ratio:16/10;
}
.media-frame--wide{aspect-ratio:16/9}
.media-frame--square{aspect-ratio:1/1}
.media-frame--tall{aspect-ratio:4/5}
.media-frame img{width:100%;height:100%;object-fit:cover}
.media-frame__cap{
  position:absolute;left:12px;bottom:12px;
  padding:5px 10px;border-radius:var(--radius-pill);
  background:rgba(255,246,232,.92);color:var(--lake-deep);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;
}

.prose{max-width:72ch}
.prose > * + *{margin-top:1.05em}
.prose h2{font-size:clamp(24px,3vw,32px);margin-top:1.8em}
.prose h3{font-size:var(--fs-h3);margin-top:1.5em}
.prose p{font-size:var(--fs-body);line-height:1.8}
.prose a{color:var(--apricot-deep);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.prose a:hover{color:#A9490B}
.prose ul,.prose ol{display:grid;gap:8px}
.prose li{position:relative;padding-left:18px;line-height:1.78}
.prose li::before{
  content:"";position:absolute;left:0;top:.78em;
  width:7px;height:7px;border-radius:2px;background:var(--apricot);transform:rotate(45deg);
}

.breadcrumb{margin-bottom:clamp(18px,3vw,28px)}
.breadcrumb__list{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.06em;color:var(--text-muted);
}
.breadcrumb__item{display:inline-flex;align-items:center;gap:8px}
.breadcrumb__item + .breadcrumb__item::before{content:"/";color:rgba(43,33,25,.28)}
.breadcrumb__link{color:var(--lake-deep)}
.breadcrumb__link:hover{color:var(--apricot-deep)}
.breadcrumb__current{color:var(--brown-black)}

.scout-nav{display:flex;flex-wrap:wrap;gap:6px}
.scout-nav__link{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 12px;border-radius:var(--radius-pill);
  border:var(--hairline);background:var(--card-white);
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.06em;color:var(--lake-deep);
  transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.scout-nav__link::before{content:"";width:5px;height:5px;border-radius:2px;background:var(--apricot);flex:none}
.scout-nav__link:hover{border-color:var(--apricot);color:var(--apricot-deep)}
.scout-nav__link[aria-current]{background:var(--ink-teal);border-color:var(--ink-teal);color:var(--paper-cream)}
.scout-nav__link[aria-current]::before{background:var(--warm-sand)}

html.has-js [data-reveal]{opacity:0;transform:translateY(10px);transition:opacity .5s ease,transform .5s ease}
html.has-js [data-reveal].is-in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  .header-note{display:none}
}
@media (max-width:1080px){
  :root{--header-h:72px}
  .nav-toggle{display:inline-flex}
  .header-float{grid-template-columns:minmax(0,1fr) auto auto;border-radius:22px}
  .nav-band{
    position:absolute;left:0;right:0;top:calc(100% + 8px);
    display:none;flex-direction:column;align-items:stretch;gap:4px;
    padding:10px;background:var(--card-white);
    border:var(--hairline);border-radius:20px;
    box-shadow:0 22px 44px -30px rgba(43,33,25,.75);
    max-height:min(68vh,520px);overflow:auto;
  }
  .site-header[data-open="true"] .nav-band{display:flex}
  .nav-band__list{flex-direction:column;align-items:stretch;gap:2px}
  .nav-link{padding:12px 14px;border-radius:12px;font-size:16px}
  .nav-link::before{width:8px;height:8px}
  .section-head{grid-template-columns:minmax(0,1fr);align-items:start}
  .grid--2,.grid--3,.grid--split{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-brand{grid-column:1/-1}
  .footer-contact{grid-column:1/-1}
}
@media (max-width:860px){
  :root{--header-h:66px}
  .footer-feedback__inner{flex-direction:column;align-items:flex-start}
  .footer-feedback__text{max-width:100%}
  .section-lead{font-size:15px}
}
@media (max-width:560px){
  .header-float{grid-template-columns:minmax(0,1fr) auto;gap:10px;padding:8px 8px 8px 10px}
  .header-actions{display:none}
  .brand-sub{font-size:9.5px;letter-spacing:.08em}
  .brand-name{font-size:15px}
  .nav-band__cta{display:inline-flex;justify-content:center;margin-top:6px}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:26px}
  .footer-legal{flex-direction:column;align-items:flex-start;gap:8px}
  .footer-legal__links{margin-left:0}
  .footer-feedback__actions{width:100%}
  .footer-feedback__actions .btn{flex:1 1 auto}
}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  html.has-js [data-reveal]{opacity:1;transform:none}
  .btn:hover,.card--link:hover{transform:none}
  .read-progress__bar{transition:none}
  .skip-link{transition:none}
}