:root {
  --s3-ink: #0a100e;
  --s3-forest: #0d2822;
  --s3-forest-2: #12352c;
  --s3-ivory: #f2ece2;
  --s3-paper: #e8dfd2;
  --s3-gold: #b68b4e;
  --s3-gold-light: #d8bd8c;
  --s3-text: #242a27;
  --s3-muted: #626962;
  --s3-line: rgba(24, 38, 32, .18);
  --s3-shell: min(1368px, calc(100% - 72px));
}
html { background: var(--s3-ivory); scroll-behavior: smooth; }
body {
  min-width: 320px;
  margin: 0;
  overflow-x: clip;
  color: var(--s3-text);
  background: var(--s3-ivory);
  font-family: "Source Sans 3", Inter, "Segoe UI", sans-serif;
  line-height: 1.65;
}
html[lang="zh-CN"] body {
  font-family: "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
  line-height: 1.8;
}
* { box-sizing: border-box; }
img { display: block; width: 100%; max-width: 100%; }
.s3-responsive-media { display: block; width: 100%; }
.s3-responsive-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: var(--s3-object-desktop, center);
}
a { color: inherit; }
.s3-shell { width: var(--s3-shell); margin-inline: auto; }
.s3-eyebrow {
  margin: 0 0 14px;
  color: var(--s3-gold-light);
  font-size: .73rem;
  font-weight: 780;
  letter-spacing: .17em;
  text-transform: uppercase;
}
.s3-section { position: relative; padding: clamp(72px, 8.5vw, 128px) 0; }
.s3-section h2,
.s3-about-hero h1,
.s3-final h2 {
  margin: 0;
  font-family: "Source Serif 4", "Iowan Old Style", Georgia, serif;
  font-weight: 500;
  letter-spacing: -.035em;
  line-height: 1.02;
  text-wrap: balance;
}
.s3-section h2 { font-size: clamp(2.45rem, 4.7vw, 5.15rem); }
.s3-section-heading { max-width: 620px; }
.s3-section-heading > p:last-child { margin: 28px 0 0; color: var(--s3-muted); font-size: 1.05rem; }
.s3-section-heading--center { max-width: 800px; margin: 0 auto 48px; text-align: center; }
.s3-section-heading--light { color: #fff; }
.s3-section-heading--light > p:last-child { color: rgba(255,255,255,.72); }

.site-header[data-variant="OVERLAY"] {
  position: absolute;
  z-index: 20;
  width: 100%;
  background: linear-gradient(180deg, rgba(6,12,10,.94), rgba(6,12,10,.3) 75%, transparent);
}
.site-header[data-variant="OVERLAY"] .primary-nav a[aria-current="page"] { color: var(--s3-gold-light); }
.site-header[data-variant="OVERLAY"] .primary-nav a[aria-current="page"]::after { background: var(--s3-gold); }
.site-footer { color: rgba(255,255,255,.82); background: #0b2922; }

.s3-about-hero {
  position: relative;
  min-height: min(850px, 92vh);
  display: grid;
  align-items: end;
  overflow: hidden;
  color: #fff;
  background: var(--s3-ink);
}
.s3-about-hero > .s3-responsive-media {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.s3-about-hero > .s3-responsive-media img {
  height: 100%;
  object-fit: cover;
}
.s3-about-hero__veil {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 74% 48%, transparent 0 20%, rgba(3,8,6,.14) 58%),
    linear-gradient(90deg, rgba(4,10,8,.96) 0, rgba(4,10,8,.82) 34%, rgba(4,10,8,.32) 69%, rgba(4,10,8,.26)),
    linear-gradient(0deg, rgba(4,10,8,.7), transparent 42%);
}
.s3-about-hero__inner { position: relative; z-index: 1; padding: 150px 0 96px; }
.s3-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: clamp(54px, 9vh, 100px);
  color: rgba(255,255,255,.72);
  font-size: .74rem;
  letter-spacing: .09em;
  text-transform: uppercase;
}
.s3-breadcrumb a { color: var(--s3-gold-light); text-underline-offset: 4px; }
.s3-about-hero__copy { max-width: 750px; }
.s3-about-hero h1 { max-width: 710px; font-size: clamp(3.55rem, 7.1vw, 7.4rem); }
.s3-about-hero__body { max-width: 690px; margin: 30px 0 0; font-size: clamp(1rem, 1.35vw, 1.22rem); color: rgba(255,255,255,.84); }

.s3-mission-vision { background: var(--s3-ivory); }
.s3-mission-vision__grid { display: grid; grid-template-columns: 1fr minmax(280px,.78fr) 1fr; gap: clamp(36px,5vw,78px); align-items: center; }
.s3-belief h2 { margin-top: 16px; font-size: clamp(2.35rem,3.7vw,4rem); }
.s3-belief > p { margin: 22px 0 28px; color: var(--s3-muted); }
.s3-belief ul { padding: 0; margin: 0; list-style: none; border-top: 1px solid var(--s3-line); }
.s3-belief li { position: relative; padding: 14px 0 14px 28px; border-bottom: 1px solid var(--s3-line); font-size: .94rem; }
.s3-belief li::before { content: "✦"; position: absolute; left: 0; color: var(--s3-gold); }
.s3-medallion { display: inline-grid; width: 40px; height: 40px; place-items: center; border: 1px solid var(--s3-gold); border-radius: 50%; color: #74552c; font: 700 .7rem/1 system-ui,sans-serif; }
.s3-thangka { margin: 0; padding: 12px; background: #cfb17d; box-shadow: 0 24px 64px rgba(32,25,14,.18); }
.s3-thangka .s3-responsive-media { aspect-ratio: 3/4; }
.s3-thangka img { aspect-ratio: 3/4; object-fit: cover; }

.s3-what { color: #fff; background: var(--s3-forest); }
.s3-what__grid { display: grid; grid-template-columns: repeat(4,1fr); border: 1px solid rgba(216,189,140,.34); }
.s3-what-card { position: relative; min-height: 360px; padding: 34px 28px; border-right: 1px solid rgba(216,189,140,.25); transition: background .25s ease, transform .25s ease; }
.s3-what-card:last-child { border-right: 0; }
.s3-what-card:hover, .s3-what-card:focus-within { background: rgba(255,255,255,.05); transform: translateY(-4px); }
.s3-what-card__number { color: var(--s3-gold-light); font: 500 2.8rem/1 Georgia,serif; }
.s3-what-card h3 { margin: 50px 0 18px; color: var(--s3-gold-light); font: 500 1.55rem/1.14 Georgia,serif; }
.s3-what-card p { margin: 0; color: rgba(255,255,255,.72); }

.s3-glance { background: var(--s3-ivory); }
.s3-glance__layout { display: grid; grid-template-columns: minmax(260px,.66fr) minmax(0,1.34fr); gap: clamp(48px,7vw,110px); align-items: start; }
.s3-glance__facts { display: grid; grid-template-columns: repeat(2,1fr); margin: 0; border-top: 1px solid var(--s3-line); }
.s3-fact { min-width: 0; padding: 26px 22px 30px 0; border-bottom: 1px solid var(--s3-line); }
.s3-fact:nth-child(odd) { padding-right: 32px; }
.s3-fact dt { color: #786037; font-size: .72rem; font-weight: 780; letter-spacing: .11em; text-transform: uppercase; }
.s3-fact dd { margin: 10px 0 0; overflow-wrap: anywhere; font: 500 clamp(1.05rem,1.7vw,1.45rem)/1.3 Georgia,serif; }
.s3-fact--wide { grid-column: 1/-1; }

.s3-registration { padding: 0 0 clamp(72px,8vw,120px); background: var(--s3-ivory); }
.s3-registration__details { border: 1px solid var(--s3-line); background: rgba(255,255,255,.28); }
.s3-registration__details > summary { display: flex; min-height: 88px; align-items: center; justify-content: space-between; gap: 24px; padding: 20px 28px; cursor: pointer; list-style: none; }
.s3-registration__details > summary::-webkit-details-marker { display: none; }
.s3-registration__details > summary strong { display: block; font: 500 1.45rem/1.2 Georgia,serif; }
.s3-registration__details > summary small { display: block; margin-top: 4px; color: var(--s3-muted); }
.s3-registration__details > summary:focus-visible { outline: 3px solid var(--s3-gold); outline-offset: 4px; }
.s3-registration__plus { position: relative; width: 26px; height: 26px; flex: 0 0 auto; border: 1px solid var(--s3-gold); border-radius: 50%; }
.s3-registration__plus::before,.s3-registration__plus::after { content: ""; position: absolute; top: 12px; left: 7px; width: 12px; height: 1px; background: #76562e; }
.s3-registration__plus::after { transform: rotate(90deg); transition: transform .2s ease; }
.s3-registration__details[open] .s3-registration__plus::after { transform: rotate(0); }
.s3-registration__grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); margin: 0; padding: 0 28px 28px; }
.s3-registration__field { min-width: 0; padding: 18px 24px 18px 0; border-top: 1px solid var(--s3-line); }
.s3-registration__field:nth-child(even) { padding-left: 24px; border-left: 1px solid var(--s3-line); }
.s3-registration__field dt { color: #786037; font-size: .7rem; font-weight: 780; letter-spacing: .1em; text-transform: uppercase; }
.s3-registration__field dd { margin: 7px 0 0; overflow-wrap: anywhere; word-break: normal; font-variant-numeric: tabular-nums; user-select: text; }
.s3-registration__field a { text-decoration-color: var(--s3-gold); text-underline-offset: 4px; }

.s3-approach { min-height: 720px; display: grid; align-items: end; overflow: hidden; color: #fff; background: var(--s3-ink); }
.s3-approach > .s3-responsive-media { position: absolute; inset: 0; width: 100%; height: 100%; }
.s3-approach > .s3-responsive-media img { height: 100%; object-fit: cover; }
.s3-approach__veil { position: absolute; inset: 0; background: linear-gradient(90deg,rgba(5,13,10,.94),rgba(5,13,10,.46) 58%,rgba(5,13,10,.6)),linear-gradient(0deg,rgba(4,12,9,.95),transparent 70%); }
.s3-approach__inner { position: relative; z-index: 1; }
.s3-approach__grid { display: grid; grid-template-columns: repeat(4,1fr); margin-top: clamp(100px,18vw,240px); border-top: 1px solid rgba(255,255,255,.24); }
.s3-approach-card { padding: 28px 24px 10px 0; border-right: 1px solid rgba(255,255,255,.2); }
.s3-approach-card:not(:first-child) { padding-left: 24px; }
.s3-approach-card:last-child { border-right: 0; }
.s3-approach-card h3 { color: var(--s3-gold-light); font: 500 1.3rem/1.16 Georgia,serif; }
.s3-approach-card p { color: rgba(255,255,255,.7); font-size: .93rem; }

.s3-global { color: #fff; background: #071b21; overflow: hidden; }
.s3-global__grid { display: grid; grid-template-columns: .78fr 1.18fr .7fr; gap: clamp(28px,4vw,64px); align-items: center; }
.s3-global__copy h2 { font-size: clamp(2.5rem,4.6vw,5rem); }
.s3-global__copy > p:last-child { color: rgba(255,255,255,.68); }
.s3-global__visual { position: relative; margin: 0; }
.s3-global__visual::after { content: ""; position: absolute; inset: 0; box-shadow: inset 0 0 70px #071b21; pointer-events: none; }
.s3-global__visual img { aspect-ratio: 1.35/1; object-fit: cover; mix-blend-mode: screen; filter: contrast(1.12) saturate(.78); }
.s3-global__panel { border: 1px solid rgba(216,189,140,.34); background: rgba(21,56,47,.76); }
.s3-global-item { padding: 17px 18px; border-bottom: 1px solid rgba(216,189,140,.22); }
.s3-global-item:last-child { border-bottom: 0; }
.s3-global-item h3 { margin: 0; color: var(--s3-gold-light); font: 500 1.05rem/1.2 Georgia,serif; }
.s3-global-item p { margin: 5px 0 0; color: rgba(255,255,255,.66); font-size: .82rem; }

.s3-why { background: var(--s3-ivory); }
.s3-why__grid { display: grid; grid-template-columns: repeat(4,1fr); border-top: 1px solid var(--s3-line); border-left: 1px solid var(--s3-line); }
.s3-why-card { min-height: 280px; padding: 30px 24px; border-right: 1px solid var(--s3-line); border-bottom: 1px solid var(--s3-line); text-align: center; }
.s3-why-card__mark { display: inline-grid; width: 54px; height: 54px; place-items: center; border: 1px solid var(--s3-gold); border-radius: 50%; color: #75572f; font: 500 1.25rem/1 Georgia,serif; }
.s3-why-card h3 { margin: 28px 0 14px; font: 500 1.3rem/1.16 Georgia,serif; }
.s3-why-card p { margin: 0; color: var(--s3-muted); font-size: .93rem; }

.s3-final { position: relative; min-height: 520px; display: grid; align-items: center; overflow: hidden; color: #fff; background: var(--s3-ink); }
.s3-final > .s3-responsive-media { position: absolute; inset: 0; width: 100%; height: 100%; }
.s3-final > .s3-responsive-media img { height: 100%; object-fit: cover; }
.s3-final__veil { position: absolute; inset: 0; background: linear-gradient(90deg,rgba(4,12,9,.96),rgba(4,12,9,.68) 55%,rgba(4,12,9,.28)); }
.s3-final__inner { position: relative; z-index: 1; display: flex; align-items: end; justify-content: space-between; gap: 56px; padding-block: 90px; }
.s3-final__inner > div:first-child { max-width: 760px; }
.s3-final h2 { font-size: clamp(3rem,5.6vw,6.2rem); }
.s3-final p:not(.s3-eyebrow) { max-width: 620px; color: rgba(255,255,255,.75); }
.s3-buttons { display: flex; min-width: 240px; flex-direction: column; gap: 12px; }
.s3-button { display: inline-flex; min-height: 50px; align-items: center; justify-content: space-between; gap: 18px; padding: 12px 18px; border: 1px solid rgba(255,255,255,.6); font-weight: 750; text-decoration: none; }
.s3-button--gold { border-color: var(--s3-gold-light); color: #121713; background: var(--s3-gold-light); }
.s3-button:hover,.s3-button:focus-visible { transform: translateY(-2px); }
.s3-button:focus-visible { outline: 3px solid #fff; outline-offset: 4px; }

.shared-route-unavailable { color: rgba(255,255,255,.52); }
@media (forced-colors: active) {
  .s3-about-hero__veil,.s3-approach__veil,.s3-final__veil { display: none; }
  .s3-about-hero > .s3-responsive-media,.s3-approach > .s3-responsive-media,.s3-final > .s3-responsive-media { opacity: .25; }
}
