/* template-skin:dune prefix:du */
/**
 * Dune — sand dunes / cool-off teto (desert sand + dusk indigo)
 * Chrome: undulating SVG dune band under header + staggered sand cards
 * (≠ quay waterline gauge, ≠ mill millstone, ≠ vault panels)
 * Fonts: DM Serif Display / Work Sans via HTML link (no @import)
 */
*,*::before,*::after{box-sizing:border-box}
html{
  scroll-behavior:smooth;
  scroll-padding-top:5.75rem;
  scroll-padding-bottom:1.5rem;
}
html,body{margin:0}
body{
  --du-ink:#1a1f2e;
  --du-muted:#5c6478;
  --du-sand:#e8d4b0;
  --du-sand-deep:#c4a574;
  --du-sand-pale:#f7f0e4;
  --du-panel:#faf6ee;
  --du-indigo:#1a2744;
  --du-indigo-mid:#243356;
  --du-indigo-soft:#2d3f66;
  --du-dusk:#3d4f6e;
  --du-copper:#b56b3a;
  --du-line:#d9c8a8;
  --du-font:"Work Sans","Segoe UI",sans-serif;
  --du-display:"DM Serif Display","Georgia",serif;
  font-family:var(--du-font);line-height:1.65;color:var(--du-ink);
  background:
    radial-gradient(ellipse 70% 45% at 80% -10%,rgba(26,39,68,.18),transparent 55%),
    linear-gradient(180deg,var(--du-sand-pale) 0%,#efe6d4 50%,var(--du-sand) 100%);
}
img{max-width:100%;height:auto;display:block}
a{color:var(--du-indigo-soft);text-underline-offset:3px}
a:hover{color:var(--du-copper)}

.du-shell{min-height:100vh;display:flex;flex-direction:column}
.du-wrap{width:min(1020px,calc(100% - 2rem));margin-inline:auto}
.du-wrap--narrow{width:min(700px,calc(100% - 2rem))}

/* —— Top bar —— */
.du-top{
  position:sticky;top:0;z-index:50;
  background:rgba(250,246,238,.94);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--du-line);
  padding:.6rem 0;padding-top:max(.6rem,env(safe-area-inset-top));
}
.du-top__row{
  width:min(1020px,calc(100% - 1.25rem));margin-inline:auto;
  display:flex;align-items:center;gap:.75rem;flex-wrap:wrap;
}
.du-brand{display:flex;align-items:center;gap:.55rem;text-decoration:none;color:var(--du-ink);min-width:0}
.du-brand img{width:38px;height:38px;border-radius:10px;object-fit:cover;border:2px solid var(--du-indigo)}
.du-brand__name{font-family:var(--du-display);font-weight:400;font-size:1.2rem;letter-spacing:-.01em}
.du-brand__tag{display:block;font-size:.62rem;letter-spacing:.14em;text-transform:uppercase;color:var(--du-copper);font-weight:700}
.du-nav{display:none;gap:1rem;margin-left:auto}
@media(min-width:900px){.du-nav{display:flex}}
.du-nav a{color:var(--du-muted);text-decoration:none;font-size:.88rem;font-weight:600}
.du-nav a.is-active,.du-nav a:hover{color:var(--du-indigo);box-shadow:inset 0 -2px 0 var(--du-sand-deep)}
.du-top__cta{display:none;gap:.4rem;align-items:center}
@media(min-width:900px){.du-top__cta{display:flex}}
.du-toggle{
  margin-left:auto;display:inline-flex;align-items:center;justify-content:center;
  width:2.3rem;height:2.3rem;border:1px solid var(--du-line);background:var(--du-panel);
  color:var(--du-ink);cursor:pointer;border-radius:6px;font-size:1.1rem;
}
@media(min-width:900px){.du-toggle{display:none}}

/* —— Undulating dune banner (unique chrome) —— */
.du-dune[hidden]{display:none}
.du-dune{
  position:relative;background:var(--du-indigo);color:var(--du-sand);
  overflow:hidden;
}
.du-dune__inner{
  width:min(1020px,calc(100% - 1.25rem));margin-inline:auto;
  padding:.75rem 0 .35rem;position:relative;z-index:1;
  display:flex;align-items:center;justify-content:space-between;gap:.75rem;flex-wrap:wrap;
}
.du-dune__kicker{
  font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;
  color:var(--du-sand-deep);font-weight:700;
}
.du-dune__line{font-size:.88rem;flex:1;min-width:12rem;opacity:.95}
.du-dune__x{
  border:0;background:transparent;color:var(--du-sand);font-size:1.25rem;
  cursor:pointer;line-height:1;padding:.15rem .35rem;
}
.du-dune__svg{
  display:block;width:100%;height:28px;margin-top:.15rem;
}
.du-dune__svg path{animation:du-drift 9s ease-in-out infinite alternate}
@keyframes du-drift{
  from{transform:translateX(0)}
  to{transform:translateX(-12px)}
}

.du-drawer{
  display:none;flex-direction:column;gap:.35rem;
  background:var(--du-indigo-mid);padding:1rem 1.25rem 1.25rem;
}
.du-drawer.is-open{display:flex}
.du-drawer a{color:var(--du-sand);text-decoration:none;font-weight:600;padding:.35rem 0;border-bottom:1px solid rgba(232,212,176,.15)}
.du-drawer a:hover{color:#fff}

/* —— Buttons —— */
.du-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.35rem;
  padding:.55rem 1rem;border-radius:4px;font-weight:700;font-size:.88rem;
  text-decoration:none;border:1px solid transparent;cursor:pointer;
  font-family:var(--du-font);
}
.du-btn--indigo{background:var(--du-indigo);color:var(--du-sand)}
.du-btn--indigo:hover{background:var(--du-indigo-soft);color:#fff}
.du-btn--sand{background:var(--du-sand);color:var(--du-indigo);border-color:var(--du-sand-deep)}
.du-btn--sand:hover{background:var(--du-sand-deep);color:var(--du-indigo)}
.du-btn--ghost{background:transparent;color:var(--du-indigo);border-color:var(--du-line)}
.du-btn--ghost:hover{border-color:var(--du-copper);color:var(--du-copper)}
.du-btn--lg{padding:.75rem 1.25rem;font-size:.95rem}

/* —— Hero with SVG dune band —— */
.du-hero{
  position:relative;padding:2.6rem 0 0;
  overflow:hidden;
}
.du-hero__kicker{
  font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--du-copper);font-weight:700;margin:0 0 .6rem;
}
.du-hero__brand{
  font-family:var(--du-display);font-size:clamp(2.1rem,5vw,3.15rem);
  font-weight:400;line-height:1.12;margin:0 0 .85rem;color:var(--du-indigo);
  letter-spacing:-.02em;
}
.du-hero__text{max-width:38rem;margin:0 0 1.25rem;color:var(--du-muted);font-size:1.05rem}
.du-hero__actions{display:flex;flex-wrap:wrap;gap:.55rem;margin-bottom:1.5rem}
.du-hero__band{
  display:block;width:100%;height:72px;margin:0;
}
.du-hero__band path:nth-child(1){animation:du-ripple 11s ease-in-out infinite alternate}
.du-hero__band path:nth-child(2){animation:du-ripple 8s ease-in-out infinite alternate-reverse}
@keyframes du-ripple{
  from{transform:translateY(0)}
  to{transform:translateY(4px)}
}

/* —— Staggered sand cards —— */
.du-sands{padding:1.25rem 0 2.5rem}
.du-sands__head{
  font-family:var(--du-display);font-size:1.5rem;margin:0 0 1.15rem;color:var(--du-indigo);
}
.du-sand-stack{display:flex;flex-direction:column;gap:1.15rem}
.du-sand-card{
  display:grid;grid-template-columns:minmax(0,1fr);gap:0;
  background:var(--du-panel);border:1px solid var(--du-line);border-radius:2px 18px 2px 18px;
  overflow:hidden;position:relative;
  box-shadow:0 8px 0 -4px rgba(26,39,68,.06);
  max-width:92%;
}
.du-sand-card:nth-child(even){
  margin-left:auto;border-radius:18px 2px 18px 2px;
}
.du-sand-card:nth-child(odd){margin-right:auto}
@media(min-width:720px){
  .du-sand-card{grid-template-columns:120px minmax(0,1fr);max-width:88%}
  .du-sand-card:nth-child(even){transform:translateX(4%)}
  .du-sand-card:nth-child(odd){transform:translateX(-2%)}
}
.du-sand-card__ridge{
  background:linear-gradient(165deg,var(--du-indigo) 0%,var(--du-indigo-soft) 100%);
  color:var(--du-sand);padding:1rem 1rem;
  display:flex;flex-direction:column;justify-content:space-between;gap:.75rem;
  min-height:6.5rem;
}
.du-sand-card__n{
  font-family:var(--du-display);font-size:1.7rem;font-weight:400;line-height:1;
}
.du-sand-card__label{
  font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;opacity:.85;
}
.du-sand-card__body{padding:1.15rem 1.25rem 1.25rem}
.du-sand-card__body h2{
  font-family:var(--du-display);font-size:1.28rem;margin:0 0 .45rem;color:var(--du-indigo);font-weight:400;
}
.du-sand-card__body p{margin:0 0 .85rem;color:var(--du-muted)}
.du-sand-card__go{
  font-weight:700;text-decoration:none;color:var(--du-copper);
  border-bottom:1px solid currentColor;
}
.du-sand-card__go:hover{color:var(--du-indigo)}

/* —— Gallery strip —— */
.du-strip{
  padding:1.5rem 0 2rem;border-top:1px solid var(--du-line);
  background:rgba(26,39,68,.04);
}
.du-strip__grid{
  display:grid;gap:1rem;
  grid-template-columns:1fr;
}
@media(min-width:720px){.du-strip__grid{grid-template-columns:repeat(3,1fr)}}
.du-strip__item{
  margin:0;background:var(--du-panel);border:1px solid var(--du-line);
  border-radius:2px 12px;overflow:hidden;
}
.du-strip__item:nth-child(2){border-radius:12px 2px}
.du-strip__item img{width:100%;aspect-ratio:16/9;object-fit:cover}
.du-strip__item figcaption{
  padding:.65rem .85rem;font-size:.82rem;color:var(--du-muted);
}

.du-specs{padding:1.5rem 0 2.5rem}
.du-specs__table{
  width:100%;border-collapse:collapse;background:var(--du-panel);
  border:1px solid var(--du-line);font-size:.92rem;
}
.du-specs__table th,.du-specs__table td{
  text-align:left;padding:.7rem .9rem;border-bottom:1px solid var(--du-line);vertical-align:top;
}
.du-specs__table th{
  width:30%;font-family:var(--du-display);font-weight:400;color:var(--du-indigo);
  background:rgba(26,39,68,.05);
}
.du-specs__table tr:last-child th,.du-specs__table tr:last-child td{border-bottom:0}

.du-news-home{padding:0 0 2.5rem}
.du-news-home__title{
  font-family:var(--du-display);font-size:1.45rem;margin:0 0 1rem;color:var(--du-indigo);font-weight:400;
}

/* —— Page chrome —— */
.du-page{flex:1;padding:1.5rem 0 2.5rem}
.du-crumb,.du-breadcrumbs{font-size:.85rem;color:var(--du-muted);margin:0 0 1rem}
.du-crumb a,.du-breadcrumbs a{color:var(--du-copper);text-decoration:none}
.du-title{
  font-family:var(--du-display);font-size:clamp(1.65rem,3vw,2.15rem);
  margin:0 0 .75rem;color:var(--du-indigo);line-height:1.2;font-weight:400;
}
.du-lead{color:var(--du-muted);font-size:1.05rem;margin:0 0 1.25rem;max-width:40rem}
.du-prose,.du-article__body{font-size:1.02rem;max-width:40rem}
.du-prose h2,.du-article__body h2{
  font-family:var(--du-display);color:var(--du-indigo);margin:1.6rem 0 .6rem;font-weight:400;
}
.du-prose ol,.du-prose ul,.du-article__body ol,.du-article__body ul{padding-left:1.25rem}
.du-prose li,.du-article__body li{margin:.35rem 0}
.du-figure{
  margin:1.25rem 0;border:1px solid var(--du-line);background:var(--du-panel);
  border-radius:2px 14px;overflow:hidden;
}
.du-figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
.du-figure figcaption{padding:.55rem .8rem;font-size:.82rem;color:var(--du-muted)}

.du-faq details{
  border:1px solid var(--du-line);background:var(--du-panel);
  margin:0 0 .55rem;padding:.65rem .9rem;border-radius:0 10px 0 10px;
}
.du-faq summary{cursor:pointer;font-weight:700;color:var(--du-indigo)}
.du-faq details[open] summary{margin-bottom:.4rem}
.du-faq p{margin:.35rem 0;color:var(--du-muted)}

.du-week-digest{margin:1rem 0;padding:1rem;border-left:4px solid var(--du-sand-deep);background:var(--du-panel)}

/* —— News —— */
.du-news-list{display:flex;flex-direction:column;gap:1rem}
.du-news-empty{color:var(--du-muted);padding:1rem;border:1px dashed var(--du-line);background:var(--du-panel)}
.du-news-card{
  display:grid;gap:0;background:var(--du-panel);border:1px solid var(--du-line);
  border-radius:2px 14px;overflow:hidden;
}
.du-news-card:nth-child(even){border-radius:14px 2px}
@media(min-width:640px){
  .du-news-card.has-thumb{grid-template-columns:220px minmax(0,1fr)}
}
.du-news-card__media{display:block;background:var(--du-indigo)}
.du-news-card__media img,.du-news-card__media picture{width:100%;aspect-ratio:16/9;object-fit:cover}
.du-news-card__body{padding:1rem 1.1rem}
.du-news-card__meta{
  display:flex;flex-wrap:wrap;gap:.5rem .85rem;align-items:center;
  font-size:.78rem;color:var(--du-muted);margin:0 0 .4rem;
}
.du-news-card__ridge{
  display:inline-block;padding:.15rem .45rem;background:var(--du-indigo);
  color:var(--du-sand);font-weight:700;letter-spacing:.08em;font-size:.65rem;text-transform:uppercase;
}
.du-news-card__title{font-family:var(--du-display);font-size:1.15rem;margin:0 0 .35rem;line-height:1.3;font-weight:400}
.du-news-card__title a{color:var(--du-indigo);text-decoration:none}
.du-news-card__title a:hover{color:var(--du-copper)}
.du-news-card__excerpt{margin:0;color:var(--du-muted);font-size:.92rem}

.du-pager{margin-top:1.5rem;display:grid;gap:.5rem}
.du-pager__row{display:flex;align-items:center;gap:.5rem;flex-wrap:wrap}
.du-pager__btn,.du-pager__num{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:2.2rem;height:2.2rem;padding:0 .55rem;
  border:1px solid var(--du-line);background:var(--du-panel);
  color:var(--du-ink);text-decoration:none;font-weight:650;font-size:.88rem;border-radius:4px;
}
.du-pager__btn.is-disabled{opacity:.4;pointer-events:none}
.du-pager__num.is-current{background:var(--du-indigo);color:var(--du-sand);border-color:var(--du-indigo)}
.du-pager__pages{display:flex;gap:.35rem;list-style:none;margin:0;padding:0;flex-wrap:wrap}
.du-pager__gap{opacity:.5;padding:0 .2rem}
.du-pager__status{font-size:.8rem;color:var(--du-muted)}

.du-article .du-byline{font-weight:650;color:var(--du-copper)}
.du-news-hero{margin:1rem 0;border:1px solid var(--du-line);border-radius:2px 14px;overflow:hidden}
.du-news-hero img{width:100%;aspect-ratio:16/9;object-fit:cover}
.du-news-nav{
  display:grid;grid-template-columns:1fr 1fr;gap:1rem;
  margin:2rem 0 1rem;padding-top:1rem;border-top:1px solid var(--du-line);
}
.du-news-nav a{text-decoration:none;color:var(--du-muted);font-size:.85rem}
.du-news-nav a strong{display:block;color:var(--du-indigo);margin-top:.2rem;font-family:var(--du-display)}
.du-news-related{margin-top:1.5rem}
.du-news-related h2{font-family:var(--du-display);font-size:1.15rem;color:var(--du-indigo);font-weight:400}
.du-news-related ul{padding-left:1.1rem}

/* —— Footer —— */
.du-foot{
  margin-top:auto;background:var(--du-indigo);color:rgba(232,212,176,.88);
  padding:2rem 0 1.5rem;border-top:3px solid var(--du-sand-deep);
  position:relative;
}
.du-foot a{color:var(--du-sand);text-decoration:none}
.du-foot a:hover{color:#fff;text-decoration:underline}
.du-foot__grid{
  display:grid;gap:1.5rem;
  grid-template-columns:1fr;
}
@media(min-width:720px){.du-foot__grid{grid-template-columns:1.4fr 1fr 1fr}}
.du-foot__brand{font-family:var(--du-display);font-size:1.25rem;color:var(--du-sand);margin:0 0 .5rem;font-weight:400}
.du-foot h3{
  font-family:var(--du-display);font-size:.95rem;color:var(--du-sand);
  margin:0 0 .55rem;letter-spacing:.04em;font-weight:400;
}
.du-foot ul{list-style:none;margin:0;padding:0}
.du-foot li{margin:.3rem 0}
.du-foot__meta{
  margin-top:1.5rem;padding-top:1rem;border-top:1px solid rgba(232,212,176,.2);
  font-size:.78rem;opacity:.85;
}

html.du-ready .du-dune__svg path{animation-play-state:running}
@media(prefers-reduced-motion:reduce){
  .du-dune__svg path,.du-hero__band path{animation:none}
  html{scroll-behavior:auto}
}

/* --- CTA visibility (skin-matched) --- */
.du-cta-rail {
  position: fixed;
  right: max(0.85rem, env(safe-area-inset-right));
  bottom: max(0.85rem, env(safe-area-inset-bottom));
  z-index: 90;
  pointer-events: none;
}
.du-cta-rail__btn {
  pointer-events: auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0.7rem 1.15rem;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  text-decoration: none !important;
  color: #fff !important;
  background: var(--du-accent, var(--du-coral, var(--du-teal, var(--du-green, #0d9488))));
  box-shadow: 0 10px 28px rgba(0,0,0,.22);
  border: 0;
}
.du-cta-rail__btn:hover { filter: brightness(1.06); }
.du-cta-rail__btn:focus-visible { outline: 2px solid currentColor; outline-offset: 3px; }
@media (max-width: 720px) {
  .du-cta-rail {
    left: max(0.75rem, env(safe-area-inset-left));
    right: max(0.75rem, env(safe-area-inset-right));
    bottom: max(0.75rem, env(safe-area-inset-bottom));
  }
  .du-cta-rail__btn { width: 100%; border-radius: 0.85rem; }
}
.du-cta-mid {
  margin: 1.1rem 0 1.35rem;
  padding: 0;
  border: 0;
  background: transparent;
  text-align: left;
}
.du-cta-mid__btn {
  display: inline-flex !important;
  min-height: 2.6rem;
  padding: 0.7rem 1.35rem;
  font-weight: 700;
  text-decoration: none !important;
}
/* 若主按钮类未覆盖底色，给 mid 一个皮肤底 */
a.du-cta-mid__btn:not([class*="--solid"]):not([class*="-cta"]):not([class*="--navy"]):not([class*="--teal"]):not([class*="--coral"]):not([class*="--forest"]) {
  color: #fff !important;
  background: var(--du-accent, var(--du-coral, var(--du-teal, var(--du-green, #0d9488))));
  border-radius: 999px;
  border: 0;
  padding: 0.7rem 1.35rem;
}
.du-btn--cta-vis {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.4rem;
  padding: 0.55rem 1rem;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none !important;
  color: #fff !important;
  background: var(--du-accent, var(--du-coral, var(--du-teal, var(--du-green, #0d9488))));
  border: 0;
}