:root{
  --deep:#0B2B3C;
  --night:#071C28;
  --paper:#F4F1E9;
  --coral:#FF6B4A;
  --coral-soft:#FF8163;
  --jade:#2FB8A6;
  --sand:#D8B36A;
  --mist:#A8C7C9;
  --shell:#E8E1D2;
  --glow:#35E0D0;
  --ink:#10222B;
  --ink-soft:#4C5F66;

  --shell-max:1280px;
  --shell-pad:clamp(20px, 5vw, 64px);
  --gutter:clamp(16px, 2.4vw, 32px);

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

  --radius:2px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote,dl,dd,address{margin:0}
ul,ol{padding:0;list-style:none}
img,svg{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0}
a{color:inherit}
table{border-collapse:collapse;width:100%}

body{
  min-height:100vh;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:clamp(15.5px,1.05vw,17px);
  font-weight:400;
  line-height:1.75;
  letter-spacing:.01em;
  overflow-x:hidden;
}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:800;line-height:1.15;text-wrap:balance}
p{text-wrap:pretty}
a{text-decoration-thickness:1px;text-underline-offset:3px}

:focus-visible{outline:2px solid var(--glow);outline-offset:3px;border-radius:2px}

.shell{width:100%;max-width:var(--shell-max);margin-inline:auto;padding-inline:var(--shell-pad)}

.section{padding-block:clamp(48px,7vw,104px)}

.display-xl{
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(40px,7vw,96px);
  line-height:1.05;
  letter-spacing:-.02em;
}
.display-m{
  font-family:var(--font-display);
  font-weight:800;
  font-size:clamp(28px,4vw,52px);
  line-height:1.12;
  letter-spacing:-.015em;
}
.eyebrow{
  display:flex;
  align-items:center;
  gap:.7em;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--sand);
}
.eyebrow::before{content:"";width:28px;height:1px;background:currentColor;flex:0 0 auto}
.lede{font-size:clamp(16px,1.4vw,19px);line-height:1.8;max-width:38em}
.mono{font-family:var(--font-mono);font-size:12.5px;letter-spacing:.06em}
.note{font-size:13px;line-height:1.7;color:var(--mist)}
.note--ink{color:var(--ink-soft)}
.rule{height:1px;border:0;background:linear-gradient(90deg,var(--sand),rgba(216,179,106,0));margin-block:28px}
.visually-hidden{
  position:absolute;width:1px;height:1px;margin:-1px;padding:0;
  overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;border:0;
}

/* ---------- skip link ---------- */
.skip-link{
  position:absolute;
  left:16px;
  top:-120px;
  z-index:200;
  padding:10px 18px;
  background:var(--coral);
  color:var(--ink);
  font-family:var(--font-display);
  font-weight:800;
  font-size:14px;
  text-decoration:none;
  border-radius:var(--radius);
  transition:top .18s var(--ease);
}
.skip-link:focus{top:12px}

/* ---------- masthead ---------- */
.masthead{
  position:sticky;
  top:0;
  z-index:60;
  isolation:isolate;
  background:var(--deep);
  color:var(--paper);
  border-top:3px solid var(--sand);
  box-shadow:0 1px 0 rgba(168,199,201,.18);
}
.masthead__inner{
  display:flex;
  flex-wrap:nowrap;
  align-items:center;
  gap:clamp(14px,2vw,30px);
  min-height:78px;
  padding-block:14px;
  position:relative;
}
.masthead__span{
  flex:1 1 auto;
  min-width:20px;
  height:1px;
  background:linear-gradient(90deg,rgba(168,199,201,0),rgba(168,199,201,.48) 22%,rgba(168,199,201,.48) 78%,rgba(168,199,201,0));
}
.masthead__dock{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.masthead__tide{
  position:absolute;
  left:0;
  bottom:0;
  height:2px;
  width:0;
  background:linear-gradient(90deg,var(--jade),var(--glow) 65%,var(--coral));
  box-shadow:0 0 10px rgba(53,224,208,.5);
  transition:width .12s linear;
  pointer-events:none;
}

/* brand */
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
  text-decoration:none;
  color:inherit;
}
.brand__mark{
  width:34px;
  height:34px;
  flex:0 0 auto;
  border-radius:50%;
  border:1px solid rgba(168,199,201,.5);
  background:
    radial-gradient(circle at 50% 50%,var(--glow) 0 2.5px,transparent 3px),
    conic-gradient(from 210deg,var(--coral) 0 44%,var(--jade) 44% 62%,rgba(216,179,106,.9) 62% 100%);
  position:relative;
  transition:transform .18s var(--ease),border-color .18s var(--ease);
}
.brand__mark::after{
  content:"";
  position:absolute;
  left:-4px;
  right:-4px;
  bottom:6px;
  height:1px;
  background:rgba(244,241,233,.55);
}
.brand:hover .brand__mark{transform:rotate(12deg);border-color:var(--glow)}
.brand__text{display:flex;flex-direction:column;gap:2px;min-width:0}
.brand__name{
  font-family:var(--font-display);
  font-weight:800;
  font-size:18px;
  line-height:1.1;
  letter-spacing:.02em;
  white-space:nowrap;
}
.brand__line{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  color:var(--mist);
  white-space:nowrap;
}

/* nav */
.nav{flex:0 0 auto;min-width:0}
.nav__list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:clamp(10px,1.5vw,26px);
  counter-reset:berth;
}
.nav__item{min-width:0}
.nav__link{
  position:relative;
  display:inline-flex;
  align-items:baseline;
  gap:.42em;
  padding:6px 0;
  font-size:13.5px;
  letter-spacing:.03em;
  color:var(--mist);
  text-decoration:none;
  white-space:nowrap;
  transition:color .18s var(--ease);
}
.nav__link::before{
  counter-increment:berth;
  content:"0" counter(berth);
  font-family:var(--font-mono);
  font-size:9px;
  letter-spacing:.06em;
  color:var(--sand);
  opacity:.7;
  transition:color .18s var(--ease),opacity .18s var(--ease);
}
.nav__link::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:-1px;
  height:1px;
  background:var(--glow);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .18s var(--ease);
}
.nav__link:hover,.nav__link:focus-visible{color:var(--paper)}
.nav__link:hover::after,.nav__link:focus-visible::after{transform:scaleX(1)}
.nav__link[aria-current="page"]{color:var(--coral)}
.nav__link[aria-current="page"]::before{color:var(--coral);opacity:1}
.nav__link[aria-current="page"]::after{transform:scaleX(1);background:var(--coral)}
.nav__foot{display:none}

/* dock cta */
.dock-cta{
  position:relative;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 17px;
  background:var(--coral);
  color:var(--ink);
  border-left:3px solid rgba(11,43,60,.28);
  border-radius:var(--radius);
  font-family:var(--font-display);
  font-weight:800;
  font-size:14px;
  letter-spacing:.02em;
  text-decoration:none;
  white-space:nowrap;
  transition:transform .18s var(--ease),background .18s var(--ease);
}
.dock-cta::after{
  content:"";
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--ink);
  opacity:.7;
}
.dock-cta:hover{background:var(--coral-soft);transform:translateY(-2px)}

/* nav toggle */
.nav-toggle{
  display:none;
  align-items:center;
  gap:9px;
  padding:8px 12px;
  border:1px solid rgba(168,199,201,.45);
  border-radius:var(--radius);
  color:var(--paper);
  cursor:pointer;
  transition:border-color .18s var(--ease),color .18s var(--ease);
}
.nav-toggle:hover{border-color:var(--glow);color:var(--glow)}
.nav-toggle__label{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.16em;
  white-space:nowrap;
}
.nav-toggle__bars{display:inline-flex;flex-direction:column;gap:3px;width:16px;flex:0 0 auto}
.nav-toggle__bars i{
  display:block;
  height:1.5px;
  background:currentColor;
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:first-child{transform:translateY(2.25px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:last-child{transform:translateY(-2.25px) rotate(-45deg)}

/* ---------- footer ---------- */
.foot{
  position:relative;
  isolation:isolate;
  overflow:hidden;
  background:var(--night);
  color:var(--shell);
  border-top:1px solid rgba(216,179,106,.35);
}
.foot::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:radial-gradient(620px 250px at 88% -10%,rgba(53,224,208,.16),transparent 70%);
}
.foot__wave{
  height:46px;
  background-image:repeating-linear-gradient(180deg,rgba(47,184,166,.30) 0 1px,transparent 1px 9px);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent);
  opacity:.85;
}
.foot__inner{
  position:relative;
  display:grid;
  grid-template-columns:1.4fr repeat(3,minmax(0,.85fr));
  gap:clamp(28px,4vw,56px);
  padding-block:clamp(36px,4.6vw,60px) clamp(28px,3vw,44px);
}
.foot__brand{min-width:0}
.foot__logo{
  display:inline-block;
  font-family:var(--font-display);
  font-weight:800;
  font-size:22px;
  letter-spacing:.02em;
  color:var(--paper);
  text-decoration:none;
  transition:color .18s var(--ease);
}
.foot__logo:hover{color:var(--jade)}
.foot__line{
  margin-top:7px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.18em;
  color:var(--sand);
}
.foot__note{
  margin-top:16px;
  max-width:32ch;
  font-size:13px;
  line-height:1.7;
  color:var(--mist);
}
.foot__contact{
  display:grid;
  gap:9px;
  margin-top:22px;
  font-style:normal;
}
.foot__contact-row{
  display:grid;
  grid-template-columns:72px minmax(0,1fr);
  gap:12px;
  align-items:baseline;
}
.foot__contact-k{
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.14em;
  color:var(--sand);
}
.foot__contact-v{
  font-size:13px;
  line-height:1.6;
  color:var(--shell);
  word-break:break-word;
}
.foot__col{min-width:0}
.foot__col-title{
  padding-bottom:10px;
  margin-bottom:14px;
  border-bottom:1px solid rgba(216,179,106,.28);
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:400;
  letter-spacing:.18em;
  color:var(--sand);
}
.foot__links{display:grid;gap:9px}
.foot__link{
  position:relative;
  display:inline-block;
  font-size:14px;
  color:var(--shell);
  text-decoration:none;
  transition:color .18s var(--ease);
}
.foot__link::after{
  content:"";
  position:absolute;
  left:0;
  bottom:-2px;
  width:100%;
  height:1px;
  background:var(--jade);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .18s var(--ease);
}
.foot__link:hover,.foot__link:focus-visible{color:var(--jade)}
.foot__link:hover::after,.foot__link:focus-visible::after{transform:scaleX(1)}
.foot__legal-bar{
  position:relative;
  border-top:1px solid rgba(168,199,201,.16);
}
.foot__legal-inner{
  display:flex;
  flex-wrap:wrap;
  gap:12px 28px;
  align-items:center;
  justify-content:space-between;
  padding-block:18px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.08em;
  color:var(--mist);
}
.foot__legal{min-width:0}
.foot__legal-links{display:flex;flex-wrap:wrap;gap:18px}
.foot__mini{
  color:var(--mist);
  text-decoration:none;
  border-bottom:1px solid rgba(168,199,201,.28);
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.foot__mini:hover,.foot__mini:focus-visible{color:var(--glow);border-bottom-color:var(--glow)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:.6em;
  padding:12px 22px;
  border:1px solid transparent;
  border-radius:var(--radius);
  background:transparent;
  font-family:var(--font-display);
  font-weight:800;
  font-size:14.5px;
  letter-spacing:.02em;
  text-decoration:none;
  cursor:pointer;
  transition:transform .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn:hover{transform:translateY(-2px)}
.btn--coral{background:var(--coral);color:var(--ink);border-color:var(--coral)}
.btn--coral:hover{background:var(--coral-soft);border-color:var(--coral-soft)}
.btn--line{border-color:rgba(11,43,60,.35);color:var(--ink)}
.btn--line:hover{border-color:var(--jade);color:var(--deep)}
.btn--ghost{border-color:rgba(168,199,201,.45);color:var(--paper)}
.btn--ghost:hover{border-color:var(--glow);color:var(--glow)}

/* ---------- chips / tags ---------- */
.chip{
  display:inline-flex;
  align-items:center;
  gap:.45em;
  padding:5px 11px;
  border:1px solid rgba(11,43,60,.28);
  border-radius:999px;
  background:transparent;
  color:var(--deep);
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.1em;
  cursor:pointer;
  transition:border-color .18s var(--ease),background .18s var(--ease),color .18s var(--ease);
}
.chip:hover{border-color:var(--jade)}
.chip.is-active,.chip[aria-pressed="true"]{background:var(--deep);color:var(--paper);border-color:var(--deep)}
.tag{
  display:inline-block;
  padding:3px 8px;
  border-radius:1px;
  background:var(--sand);
  color:var(--night);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
}
.tag--jade{background:var(--jade);color:var(--deep)}
.tag--coral{background:var(--coral);color:var(--ink)}

/* ---------- breadcrumbs ---------- */
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:.55em;
  padding-block:16px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.1em;
  color:var(--mist);
}
.crumbs a{
  color:var(--deep);
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:border-color .18s var(--ease),color .18s var(--ease);
}
.crumbs a:hover{border-bottom-color:var(--jade);color:var(--deep)}
.crumbs__sep{opacity:.5}
.crumbs [aria-current="page"]{color:var(--deep)}

/* ---------- paper / figure / grid ---------- */
.paper{
  position:relative;
  background:var(--paper);
  border:1px solid rgba(11,43,60,.16);
  border-radius:var(--radius);
  box-shadow:8px 8px 0 rgba(11,43,60,.06);
}
.paper--stack{
  box-shadow:
    4px 4px 0 -1px var(--paper),4px 4px 0 0 rgba(11,43,60,.14),
    8px 8px 0 -1px var(--paper),8px 8px 0 0 rgba(11,43,60,.1);
}
.figure{
  position:relative;
  display:block;
  overflow:hidden;
  border:1px solid rgba(11,43,60,.22);
  border-radius:var(--radius);
  background:
    linear-gradient(180deg,rgba(11,43,60,.92),rgba(7,28,40,.98));
}
.figure__img{display:block;width:100%;height:100%;object-fit:cover}
.figure__cap{
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  padding:10px 14px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.08em;
  color:var(--paper);
  background:linear-gradient(180deg,transparent,rgba(7,28,40,.82));
}
.figure--16x9{aspect-ratio:16/9}
.figure--4x3{aspect-ratio:4/3}
.figure--1x1{aspect-ratio:1/1}
.figure--3x4{aspect-ratio:3/4}
.figure--framed::after{
  content:"";
  position:absolute;
  inset:10px;
  border:1px solid rgba(244,241,233,.35);
  pointer-events:none;
}
.grid{display:grid;gap:var(--gutter)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}

/* ---------- to top ---------- */
.to-top{
  position:fixed;
  right:clamp(12px,3vw,28px);
  bottom:clamp(12px,3vw,28px);
  z-index:55;
  width:46px;
  height:46px;
  display:grid;
  place-items:center;
  border:1px solid var(--sand);
  border-radius:50%;
  background:var(--deep);
  color:var(--paper);
  cursor:pointer;
  opacity:0;
  visibility:hidden;
  transform:translateY(8px);
  transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s linear,background .18s var(--ease),border-color .18s var(--ease);
}
.to-top::before{content:"↑";font-size:16px;line-height:1}
.to-top[data-visible]{opacity:1;visibility:visible;transform:none}
.to-top:hover{background:var(--night);border-color:var(--glow);color:var(--glow)}

/* ---------- main focus ---------- */
#main-content{scroll-margin-top:clamp(88px,12vh,116px)}
#main-content:focus{outline:none}

/* ---------- responsive ---------- */
@media (max-width:1180px) and (min-width:1081px){
  .nav__list{gap:14px}
  .nav__link{font-size:12.5px}
}

@media (max-width:1080px){
  .masthead__inner{
    flex-wrap:wrap;
    column-gap:12px;
    row-gap:0;
    min-height:0;
    padding-block:12px;
  }
  .masthead__span{display:none}
  .masthead__dock{margin-left:auto}
  .nav-toggle{display:inline-flex}
  .nav{
    order:5;
    flex:1 0 100%;
    max-height:0;
    overflow:hidden;
    opacity:0;
    visibility:hidden;
    transition:max-height .3s var(--ease),opacity .22s var(--ease),visibility 0s linear .3s;
  }
  .nav[data-open]{
    max-height:76vh;
    overflow-y:auto;
    opacity:1;
    visibility:visible;
    transition:max-height .34s var(--ease),opacity .2s var(--ease),visibility 0s;
  }
  .nav__list{
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding-block:4px 8px;
  }
  .nav__item{border-bottom:1px dashed rgba(168,199,201,.16)}
  .nav__item:last-child{border-bottom:0}
  .nav__link{
    width:100%;
    justify-content:flex-start;
    padding:13px 2px;
    font-size:15px;
    white-space:normal;
  }
  .nav__link::before{font-size:10px;opacity:.85}
  .nav__link::after{display:none}
  .nav__link[aria-current="page"]{color:var(--coral)}
  .nav__foot{
    display:block;
    padding:12px 2px 18px;
    font-family:var(--font-mono);
    font-size:11px;
    letter-spacing:.12em;
    color:var(--mist);
    border-top:1px solid rgba(168,199,201,.18);
  }
}

@media (max-width:980px){
  .foot__inner{grid-template-columns:repeat(2,minmax(0,1fr))}
  .foot__brand{grid-column:1 / -1}
}

@media (max-width:760px){
  .grid--2,.grid--3{grid-template-columns:1fr}
}

@media (max-width:560px){
  .foot__inner{grid-template-columns:1fr}
  .foot__legal-inner{flex-direction:column;align-items:flex-start;gap:10px}
}

@media (max-width:480px){
  .brand__line{display:none}
  .brand__name{font-size:16px}
  .brand__mark{width:28px;height:28px}
  .dock-cta{font-size:12.5px;padding:8px 12px;border-left-width:2px}
  .dock-cta::after{display:none}
  .nav-toggle{padding:7px 9px}
  .nav-toggle__label{display:none}
  .foot__contact-row{grid-template-columns:66px minmax(0,1fr);gap:10px}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .btn:hover,.dock-cta:hover,.to-top,.brand:hover .brand__mark{transform:none}
  .nav__link:hover::after,.nav__link:focus-visible::after{transform:scaleX(1)}
}