@charset "UTF-8";
/* ==========================================================================
   Chen Group · V3 视觉系统
   --------------------------------------------------------------------------
   设计基线（V2 重构要点）
   1. 色彩：取自 Chen Group 标识的深海军蓝与学术金，建立完整品牌色阶，
      兼顾研究图像、数据卡片与深色页脚的对比度。
   2. 字号：建立 display / h1→h4 / lead / body / caption 七级阶梯，
      全部使用 clamp() 实现流体排版，替代 V1 固定 px。
   3. 间距：统一 4px 基准（--s-1 ~ --s-12），区块节奏 80/56/40。
   4. 圆角：卡片 22px / 大图 28px / 控件 999px（胶囊），层级清晰。
   5. 明暗：默认扁平 + 1px 细描边，仅在悬浮态使用轻度投影。
   6. 响应式：断点 1180 / 980 / 760 / 520，栅格 3→2→1 自适应。
   ========================================================================== */

/* ------------------------------- 1. Tokens ------------------------------- */
:root {
  /* 品牌色阶 */
  --brand-900: #143457;
  --brand-800: #1b4169;
  --brand-700: #265580;
  --brand-600: #3a6d98;
  --brand-500: #5987ad;
  --brand-300: #a5bfd4;
  --brand-200: #c5d7e5;
  --brand-100: #dce9f2;
  --brand-50:  #f2f7fb;

  /* 墨色文字阶 */
  --ink-900: #142b42;
  --ink-800: #243c53;
  --ink-700: #384f65;
  --ink-600: #52677a;
  --ink-500: #6f8191;
  --ink-400: #8d9baa;
  --ink-300: #b0bbc5;

  /* 辅色 */
  --gold-600: #b18430;
  --gold-500: #ddb766;
  --gold-100: #f8f0df;
  --violet-600: #6b57c7;
  --violet-100: #eeebfa;

  /* 表面 */
  --canvas: #fdfefe;
  --surface: #f4f7fa;
  --surface-2: #e9eff4;
  --surface-3: #dde6ed;
  --line: #d5e0e8;
  --line-soft: #e4ebf0;
  --line-strong: #b9cad7;

  /* 圆角 */
  --r-xs: 4px;
  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 16px;
  --r-xl: 16px;
  --r-2xl: 22px;
  --r-3xl: 28px;
  --r-full: 999px;

  /* 间距 */
  --s-1: 4px;
  --s-2: 8px;
  --s-3: 12px;
  --s-4: 16px;
  --s-5: 20px;
  --s-6: 24px;
  --s-7: 32px;
  --s-8: 40px;
  --s-9: 48px;
  --s-10: 64px;
  --s-11: 80px;
  --s-12: 112px;

  /* 排版 */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC",
    "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SFMono-Regular", ui-monospace, Menlo, Consolas,
    "Liberation Mono", monospace;

  /* 容器与阴影 */
  --container: 1240px;
  --header-h: 72px;
  --shadow-sm: 0 1px 2px rgba(20, 52, 87, .06);
  --shadow-md: 0 8px 24px rgba(20, 52, 87, .11);
  --shadow-lg: 0 22px 56px rgba(20, 52, 87, .17);
  --ring: 0 0 0 3px rgba(221, 183, 102, .32);
}

/* ------------------------------ 2. Reset ------------------------------ */
*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink-700);
  background: var(--canvas);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, picture, svg { display: block; max-width: 100%; }
img { height: auto; }
h1, h2, h3, h4, h5 { margin: 0; color: var(--ink-900); font-weight: 700; line-height: 1.25; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
a { color: var(--brand-700); text-decoration: none; }
a:hover { color: var(--brand-600); }
button { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--brand-600); outline-offset: 2px; border-radius: var(--r-xs); }

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--s-7);
}

.skip-link {
  position: absolute; left: 50%; top: -60px; transform: translateX(-50%);
  z-index: 200; padding: 10px 20px; border-radius: var(--r-full);
  background: var(--brand-700); color: #fff; font-size: 14px; font-weight: 700;
  transition: top .18s ease;
}
.skip-link:focus { top: 12px; color: #fff; }

/* ---------------------------- 3. Typography ---------------------------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: var(--s-2);
  font-size: 12px; font-weight: 700; letter-spacing: .14em;
  text-transform: uppercase; color: var(--brand-700);
}
.eyebrow::before {
  content: ""; width: 22px; height: 2px; border-radius: 2px;
  background: var(--gold-500);
}

.display { font-size: clamp(34px, 4.4vw, 60px); line-height: 1.12; letter-spacing: -.02em; }
.h1 { font-size: clamp(30px, 3.4vw, 44px); line-height: 1.18; letter-spacing: -.015em; }
.h2 { font-size: clamp(25px, 2.6vw, 36px); line-height: 1.22; letter-spacing: -.01em; }
.h3 { font-size: 20px; line-height: 1.4; }
.h4 { font-size: 17px; line-height: 1.45; }
.lead { font-size: clamp(16px, 1.35vw, 18px); line-height: 1.75; color: var(--ink-500); }
.body { font-size: 16px; line-height: 1.8; color: var(--ink-600); }
.small { font-size: 14px; line-height: 1.7; color: var(--ink-500); }
.caption { font-size: 12.5px; line-height: 1.6; color: var(--ink-400); }
.mono { font-family: var(--font-mono); font-size: 13px; letter-spacing: .01em; }

/* ------------------------------ 4. Header ------------------------------ */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(253, 254, 254, .92);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.site-header.is-stuck {
  border-bottom-color: var(--line);
  box-shadow: 0 6px 24px rgba(11, 26, 31, .05);
}

.header__inner {
  display: flex; align-items: center; gap: var(--s-6);
  height: var(--header-h);
}

.brand { display: flex; align-items: center; gap: var(--s-3); flex: 0 0 auto; color: inherit; }
.brand:hover { color: inherit; }
.brand__mark {
  display: grid; place-items: center; flex: 0 0 auto;
  width: 44px; height: 44px; border-radius: var(--r-md);
  background: #fff; overflow: hidden;
  box-shadow: 0 5px 16px rgba(20, 52, 87, .16);
}
.brand__mark img { width: 100%; height: 100%; object-fit: cover; }
.brand__text { display: flex; flex-direction: column; line-height: 1.2; }
.brand__name { font-size: 16px; font-weight: 700; color: var(--ink-900); letter-spacing: .01em; }
.brand__name-en { font-size: 10.5px; letter-spacing: .06em; color: var(--ink-400); text-transform: uppercase; }

.header__right { margin-left: auto; display: flex; align-items: center; gap: var(--s-5); }

.nav ul { display: flex; align-items: center; gap: var(--s-1); }
.nav a {
  position: relative; display: block;
  padding: 9px 14px; border-radius: var(--r-full);
  font-size: 15px; font-weight: 600; color: var(--ink-600);
  transition: background .16s ease, color .16s ease;
}
.nav a:hover { background: var(--surface-2); color: var(--ink-900); }
.nav a[aria-current="page"] { color: var(--brand-700); background: var(--brand-50); }

.lang {
  display: flex; align-items: center; gap: 2px;
  padding: 3px; border-radius: var(--r-full);
  background: var(--surface-2); border: 1px solid var(--line-soft);
}
.lang__btn {
  padding: 5px 13px; border: 0; border-radius: var(--r-full);
  background: transparent; color: var(--ink-500);
  font-size: 13px; font-weight: 700; cursor: pointer;
  transition: background .16s ease, color .16s ease;
}
.lang__btn[aria-pressed="true"] { background: var(--canvas); color: var(--brand-700); box-shadow: var(--shadow-sm); }

.menu-toggle {
  display: none; margin-left: auto;
  width: 42px; height: 42px; padding: 0;
  border: 1px solid var(--line); border-radius: var(--r-md);
  background: var(--canvas); cursor: pointer;
}
.menu-toggle__bars, .menu-toggle__bars::before, .menu-toggle__bars::after {
  display: block; width: 18px; height: 2px; border-radius: 2px;
  background: var(--ink-800); margin-inline: auto;
  transition: transform .2s ease, opacity .2s ease;
}
.menu-toggle__bars { position: relative; }
.menu-toggle__bars::before, .menu-toggle__bars::after { content: ""; position: absolute; left: 0; }
.menu-toggle__bars::before { top: -6px; }
.menu-toggle__bars::after { top: 6px; }
.menu-toggle[aria-expanded="true"] .menu-toggle__bars { background: transparent; }
.menu-toggle[aria-expanded="true"] .menu-toggle__bars::before { transform: translateY(6px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] .menu-toggle__bars::after { transform: translateY(-6px) rotate(-45deg); }

/* ------------------------------- 5. Hero ------------------------------- */
.hero { position: relative; overflow: hidden; padding-block: var(--s-11) var(--s-10); }
.hero::before {
  content: ""; position: absolute; inset: -30% -10% auto -10%; height: 780px;
  background:
    radial-gradient(46% 52% at 12% 12%, rgba(89, 135, 173, .18), transparent 62%),
    radial-gradient(38% 44% at 88% 8%, rgba(221, 183, 102, .16), transparent 60%),
    radial-gradient(40% 40% at 70% 78%, rgba(38, 85, 128, .09), transparent 62%);
  pointer-events: none;
}
.hero--home { background: linear-gradient(180deg, var(--brand-50) 0%, var(--canvas) 62%); }
.hero__inner {
  position: relative;
  display: grid; grid-template-columns: 1.05fr .95fr;
  gap: var(--s-10); align-items: center;
}
.hero__copy { display: flex; flex-direction: column; gap: var(--s-5); }
.hero__title { font-size: clamp(34px, 4.4vw, 60px); line-height: 1.1; letter-spacing: -.02em; }
.hero__title-en {
  font-size: 13px; letter-spacing: .1em; text-transform: uppercase;
  color: var(--ink-400); font-weight: 600;
}
.hero__lead { max-width: 46ch; }

.hero__actions { display: flex; flex-wrap: wrap; gap: var(--s-3); margin-top: var(--s-2); }

.hero__quick {
  display: flex; flex-wrap: wrap; gap: var(--s-6);
  margin-top: var(--s-3); padding-top: var(--s-5);
  border-top: 1px solid var(--line);
}
.hero__quick div { display: flex; flex-direction: column; }
.hero__quick dt, .hero__quick .k {
  font-size: 12px; font-weight: 700; letter-spacing: .08em;
  color: var(--ink-400); text-transform: uppercase;
}
.hero__quick .v { font-size: 22px; font-weight: 700; color: var(--ink-900); line-height: 1.3; }

.hero__media { position: relative; }
.hero__frame {
  position: relative; margin: 0;
  border-radius: var(--r-2xl); overflow: hidden;
  background: var(--surface-2);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--line-soft);
}
.hero__frame img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.hero--home .hero__frame img { object-fit: contain; background: var(--brand-900); }
.hero__badge {
  position: absolute; right: 12px; bottom: 12px;
  padding: 5px 12px; border-radius: var(--r-full);
  background: rgba(11, 26, 31, .62); color: #fff;
  font-size: 11.5px; font-weight: 600; letter-spacing: .02em;
  backdrop-filter: blur(6px);
}
.hero__float {
  position: absolute; left: -22px; bottom: -22px;
  display: flex; align-items: center; gap: var(--s-3);
  padding: 14px 18px; border-radius: var(--r-lg);
  background: var(--canvas); border: 1px solid var(--line-soft);
  box-shadow: var(--shadow-md);
}
.hero__float .dot {
  width: 38px; height: 38px; border-radius: var(--r-md);
  display: grid; place-items: center;
  background: var(--brand-100); color: var(--brand-700);
  font-size: 16px; font-weight: 700;
}
.hero__float .t { font-size: 12px; color: var(--ink-400); }
.hero__float .s { font-size: 15px; font-weight: 700; color: var(--ink-900); line-height: 1.3; }

/* 页头（内页） */
.hero--page { padding-block: var(--s-10) var(--s-9); background: linear-gradient(180deg, var(--brand-50), var(--canvas)); }
.hero--page .hero__inner { grid-template-columns: 1.25fr .75fr; gap: var(--s-9); }
.hero__stats { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--s-3); }
.hero__stats li {
  padding: var(--s-4) var(--s-5); border-radius: var(--r-lg);
  background: var(--canvas); border: 1px solid var(--line-soft);
  box-shadow: var(--shadow-sm);
}
.hero__stats .v { display: block; font-size: 28px; font-weight: 700; color: var(--brand-700); line-height: 1.2; }
.hero__stats .k { display: block; font-size: 13px; color: var(--ink-500); }

/* ------------------------------ 6. Sections ------------------------------ */
.section { padding-block: var(--s-11); position: relative; }
.section--tint { background: var(--surface); }
.section--tint2 { background: var(--surface-2); }
.section--line { border-top: 1px solid var(--line); }
.section--dark {
  background: linear-gradient(140deg, #0f2945, var(--brand-900) 52%, #265580);
  color: #fff;
}
.section--dark h2, .section--dark .h2 { color: #fff; }
.section--dark .lead { color: rgba(255, 255, 255, .74); }
.section--dark .eyebrow { color: #f0d79d; }
.section--dark .eyebrow::before { background: var(--gold-500); }

.section__head { max-width: 720px; margin-bottom: var(--s-9); display: flex; flex-direction: column; gap: var(--s-3); }
.section__head--center { margin-inline: auto; text-align: center; align-items: center; }
.section__head h2 { margin-top: 2px; }
.section__head-row {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: var(--s-6); margin-bottom: var(--s-8); flex-wrap: wrap;
}
.section__head-row .section__head { margin-bottom: 0; }

/* ------------------------------ 7. Buttons ------------------------------ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--s-2);
  padding: 12px 26px; border: 1px solid transparent; border-radius: var(--r-full);
  font-size: 14.5px; font-weight: 700; letter-spacing: .01em; cursor: pointer;
  transition: transform .16s ease, box-shadow .16s ease, background .16s ease, color .16s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn--primary {
  background: var(--brand-700); color: #fff;
  box-shadow: 0 6px 18px rgba(14, 111, 99, .26);
}
.btn--primary:hover { background: var(--brand-800); color: #fff; }
.btn--secondary {
  background: transparent; color: var(--ink-900); border-color: var(--line-strong);
}
.btn--secondary:hover { background: var(--surface-2); color: var(--ink-900); }
.btn--ghost { background: var(--surface-2); color: var(--ink-800); border-color: transparent; }
.btn--ghost:hover { background: var(--surface-3); color: var(--ink-900); }
.btn--light { background: #fff; color: var(--brand-800); }
.btn--light:hover { background: var(--brand-50); color: var(--brand-800); }
.btn--outline-light { background: transparent; color: #fff; border-color: rgba(255, 255, 255, .45); }
.btn--outline-light:hover { background: rgba(255, 255, 255, .12); color: #fff; }
.btn--sm { padding: 9px 18px; font-size: 13.5px; }

.link-arrow {
  display: inline-flex; align-items: center; gap: var(--s-2);
  font-size: 15px; font-weight: 700; color: var(--brand-700);
}
.link-arrow::after { content: "→"; transition: transform .18s ease; }
.link-arrow:hover::after { transform: translateX(4px); }

/* ------------------------------- 8. Stats ------------------------------- */
.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--s-5); }
.stat {
  padding: var(--s-7) var(--s-6); border-radius: var(--r-xl);
  background: var(--canvas); border: 1px solid var(--line-soft);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.stat:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--brand-300); }
.stat__v { font-size: clamp(30px, 3vw, 42px); font-weight: 700; color: var(--brand-700); line-height: 1.1; letter-spacing: -.02em; }
.stat__k { margin-top: var(--s-2); font-size: 14.5px; color: var(--ink-500); }

/* --------------------------- 9. Bento research --------------------------- */
.bento { display: grid; grid-template-columns: repeat(6, 1fr); gap: var(--s-5); }
.bento__item {
  grid-column: span 2; display: flex; flex-direction: column; gap: var(--s-3);
  padding: var(--s-7); border-radius: var(--r-xl);
  background: var(--canvas); border: 1px solid var(--line-soft);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.bento__item:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--brand-300); }
.bento__item--wide { grid-column: span 3; }
.bento__item--feature {
  grid-column: span 3;
  background: linear-gradient(150deg, var(--brand-800), var(--brand-900));
  border-color: transparent; color: #fff;
}
.bento__item--feature .h3, .bento__item--feature .body { color: rgba(255, 255, 255, .88); }
.bento__item--feature .body { color: rgba(255, 255, 255, .74); }

.card__icon {
  display: grid; place-items: center; width: 46px; height: 46px;
  border-radius: var(--r-md); background: var(--brand-100); color: var(--brand-700);
}
.card__icon svg { width: 24px; height: 24px; }
.bento__item--feature .card__icon { background: rgba(255, 255, 255, .14); color: #fff; }

.research-clusters { display: grid; gap: clamp(32px, 5vw, 64px); }
.research-cluster {
  position: relative; isolation: isolate; overflow: hidden;
  padding: clamp(24px, 4vw, 48px); border: 1px solid var(--line-soft);
  border-radius: calc(var(--r-xl) + 6px);
  background: linear-gradient(145deg, var(--canvas) 0%, var(--brand-50) 100%);
  box-shadow: var(--shadow-sm);
}
.research-cluster::before {
  content: ""; position: absolute; z-index: -1; top: -150px; right: -110px;
  width: 360px; height: 360px; border-radius: 50%;
  background: radial-gradient(circle, rgba(35, 102, 169, .15), transparent 68%);
  pointer-events: none;
}
.research-cluster--hydrogen {
  background: linear-gradient(145deg, #fff 0%, #fffbf2 100%);
  border-color: rgba(201, 150, 49, .22);
}
.research-cluster--hydrogen::before {
  background: radial-gradient(circle, rgba(222, 181, 98, .2), transparent 68%);
}
.research-cluster__head {
  display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: end;
  gap: var(--s-7); margin-bottom: clamp(24px, 4vw, 40px);
}
.research-cluster__head > div { max-width: 790px; }
.research-cluster__head .h2 { margin: 8px 0 10px; }
.research-cluster__head .lead { max-width: 760px; font-size: clamp(15.5px, 1.4vw, 18px); }
.research-cluster__eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  color: var(--brand-700); font-size: 12px; font-weight: 800;
  letter-spacing: .11em; text-transform: uppercase;
}
.research-cluster__eyebrow b {
  display: grid; place-items: center; width: 32px; height: 32px;
  border-radius: 50%; background: var(--brand-800); color: #fff;
  font-family: var(--font-mono); font-size: 11px;
}
.research-cluster--hydrogen .research-cluster__eyebrow { color: #8d651d; }
.research-cluster--hydrogen .research-cluster__eyebrow b { background: var(--gold-500); color: var(--brand-900); }
.research-cluster__count {
  align-self: start; padding: 8px 14px; border: 1px solid var(--brand-200);
  border-radius: var(--r-full); background: rgba(255, 255, 255, .78);
  color: var(--brand-700); font-size: 12px; font-weight: 750; white-space: nowrap;
}
.research-cluster--hydrogen .research-cluster__count { border-color: rgba(201, 150, 49, .3); color: #765211; }
.research-cluster__grid {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--s-5);
}
.research-cluster .research-card {
  grid-column: auto; gap: 0; padding: 0; overflow: hidden;
  border-color: rgba(26, 72, 116, .12); background: rgba(255, 255, 255, .92);
  box-shadow: 0 10px 28px rgba(13, 44, 73, .06);
}
.research-cluster .research-card:hover { transform: translateY(-6px); box-shadow: 0 18px 42px rgba(13, 44, 73, .12); }
.research-card__media { position: relative; overflow: hidden; background: #f5f8fb; }
.research-card__image {
  width: 100%; aspect-ratio: 16 / 9; object-fit: contain;
  padding: 12px; border-radius: var(--r-lg); background: #fff;
  border: 1px solid var(--line-soft);
}
.research-cluster .research-card__image {
  display: block; aspect-ratio: 16 / 10; padding: 0; border: 0; border-radius: 0;
  object-fit: cover; transition: transform .45s ease;
}
.research-cluster .research-card:hover .research-card__image { transform: scale(1.025); }
.research-card__number {
  position: absolute; top: 14px; left: 14px; display: grid; place-items: center;
  width: 38px; height: 38px; border: 1px solid rgba(255, 255, 255, .44);
  border-radius: 50%; background: rgba(13, 44, 73, .82); color: #fff;
  font-family: var(--font-mono); font-size: 11px; font-weight: 800;
  box-shadow: 0 5px 16px rgba(13, 44, 73, .18); backdrop-filter: blur(8px);
}
.research-cluster--hydrogen .research-card__number { background: rgba(184, 132, 29, .88); }
.bento__item--feature .research-card__image { border-color: rgba(255, 255, 255, .22); }
.research-card__content { display: flex; min-width: 0; flex: 1; flex-direction: column; gap: var(--s-3); }
.research-cluster .research-card__content { padding: clamp(20px, 2.3vw, 28px); }
.research-card__top { display: flex; align-items: center; justify-content: space-between; gap: var(--s-3); }
.research-card__method-label {
  color: var(--ink-400); font-size: 10px; font-weight: 800;
  letter-spacing: .11em; text-transform: uppercase;
}
.research-cluster .research-card .h3 { font-size: clamp(19px, 1.8vw, 23px); line-height: 1.35; }
.research-cluster .research-card .body { font-size: 14.5px; line-height: 1.75; }
.research-cluster .research-card .card__meta { color: var(--brand-700); font-weight: 650; }
.research-cluster--hydrogen .research-card .card__meta { color: #765211; }
.research-card__unit {
  width: fit-content; color: var(--brand-700); font-size: 11px; font-weight: 800;
  letter-spacing: .08em; text-transform: uppercase;
}
.bento__item--feature .research-card__unit { color: var(--gold-500); }

.bento--three { grid-template-columns: 1fr; }
.bento--three .bento__item,
.bento--three .bento__item--wide,
.bento--three .bento__item--feature {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, .92fr);
  align-items: center;
  gap: var(--s-7);
}
.bento--three .research-card__image { padding: 8px; }

.research-foundation {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--s-3); margin: 0 0 var(--s-6);
}
.research-foundation span {
  display: flex; align-items: center; justify-content: center;
  min-height: 56px; padding: 12px 18px;
  border: 1px solid var(--brand-200); border-radius: var(--r-full);
  background: linear-gradient(135deg, var(--canvas), var(--brand-50));
  color: var(--brand-800); font-weight: 700; letter-spacing: .02em;
}
.research-system { margin-bottom: var(--s-8); }
.research-system .card { border-top: 3px solid var(--brand-500); }
.research-workflow {
  padding: var(--s-7); border-radius: var(--r-xl);
  background: var(--canvas); border: 1px solid var(--line-soft);
  box-shadow: var(--shadow-sm);
}
.research-workflow .h3 { margin-bottom: var(--s-5); }
.research-workflow ol {
  display: grid; grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: var(--s-3); counter-reset: workflow;
}
.research-workflow li {
  position: relative; min-height: 100px; padding: 38px 16px 16px;
  border-radius: var(--r-lg); background: var(--surface-2);
  color: var(--ink-700); font-size: 14px; font-weight: 650;
  counter-increment: workflow;
}
.research-workflow li::before {
  content: "0" counter(workflow); position: absolute; top: 12px; left: 16px;
  color: var(--brand-600); font-size: 12px; font-weight: 800; letter-spacing: .08em;
}
.research-workflow li:not(:last-child)::after {
  content: "→"; position: absolute; right: -15px; top: 42%; z-index: 1;
  color: var(--brand-500); font-weight: 800;
}

.tags { display: flex; flex-wrap: wrap; gap: var(--s-2); margin-top: auto; padding-top: var(--s-3); }
.tag {
  padding: 4px 11px; border-radius: var(--r-full);
  background: var(--surface-2); color: var(--ink-600);
  font-size: 12px; font-weight: 600;
}
.bento__item--feature .tag { background: rgba(255, 255, 255, .14); color: rgba(255, 255, 255, .9); }

.card__meta {
  display: flex; align-items: center; gap: var(--s-2);
  padding-top: var(--s-3); margin-top: var(--s-2);
  border-top: 1px dashed var(--line);
  font-size: 13px; color: var(--ink-400);
}
.bento__item--feature .card__meta { border-top-color: rgba(255, 255, 255, .18); color: rgba(255, 255, 255, .68); }

/* 通用卡片栅格 */
.grid { display: grid; gap: var(--s-5); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.card {
  display: flex; flex-direction: column; gap: var(--s-3);
  padding: var(--s-7); border-radius: var(--r-xl);
  background: var(--canvas); border: 1px solid var(--line-soft);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--brand-300); }

/* --------------------------- 10. Publications --------------------------- */
.filters { display: flex; flex-wrap: wrap; gap: var(--s-2); margin-bottom: var(--s-7); }
.filter {
  padding: 8px 18px; border-radius: var(--r-full);
  border: 1px solid var(--line); background: var(--canvas);
  color: var(--ink-600); font-size: 14px; font-weight: 600; cursor: pointer;
  transition: background .16s ease, color .16s ease, border-color .16s ease;
}
.filter:hover { border-color: var(--brand-300); color: var(--brand-700); }
.filter[aria-pressed="true"] {
  background: var(--ink-900); border-color: var(--ink-900); color: #fff;
}

.pub-year { margin-bottom: var(--s-7); }
.pub-year__label {
  display: flex; align-items: center; gap: var(--s-4);
  margin-bottom: var(--s-4);
}
.pub-year__label span {
  font-size: 15px; font-weight: 700; color: var(--ink-900);
  font-family: var(--font-mono); letter-spacing: .04em;
}
.pub-year__label::after { content: ""; flex: 1; height: 1px; background: var(--line); }

.pub {
  display: grid; grid-template-columns: 74px 1fr auto; gap: var(--s-5);
  align-items: start; padding: var(--s-6) var(--s-6);
  border: 1px solid var(--line-soft); border-radius: var(--r-lg);
  background: var(--canvas); margin-bottom: var(--s-3);
  transition: box-shadow .2s ease, border-color .2s ease, transform .2s ease;
}
.pub:hover { box-shadow: var(--shadow-md); border-color: var(--brand-300); transform: translateY(-2px); }
.pub__type {
  display: grid; place-items: center; height: 30px; padding: 0 12px;
  border-radius: var(--r-full); font-size: 12px; font-weight: 700;
  background: var(--brand-100); color: var(--brand-800); white-space: nowrap;
}
.pub__type--patent { background: var(--violet-100); color: var(--violet-600); }
.pub__type--award { background: var(--gold-100); color: var(--gold-600); }
.pub__title { font-size: 17px; font-weight: 700; color: var(--ink-900); line-height: 1.5; }
.pub__authors { margin-top: 5px; font-size: 14px; color: var(--ink-600); }
.pub__venue { margin-top: 3px; font-size: 13.5px; color: var(--ink-400); font-style: italic; }
.pub__actions { display: flex; gap: var(--s-2); flex-shrink: 0; }
.icon-btn {
  display: grid; place-items: center; width: 34px; height: 34px;
  border-radius: var(--r-full); border: 1px solid var(--line);
  background: var(--canvas); color: var(--ink-400); font-size: 12px; font-weight: 700;
}
.icon-btn:hover { border-color: var(--brand-300); color: var(--brand-700); }

/* ------------------------------ 11. Projects ----------------------------- */
.project {
  display: grid; grid-template-columns: 1fr 260px; gap: var(--s-7);
  padding: var(--s-7); border-radius: var(--r-xl);
  background: var(--canvas); border: 1px solid var(--line-soft);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.project:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--brand-300); }
.project__title { font-size: 19px; font-weight: 700; color: var(--ink-900); line-height: 1.45; }
.project__side { display: flex; flex-direction: column; gap: var(--s-3); padding-left: var(--s-6); border-left: 1px solid var(--line-soft); }
.project__row { display: flex; flex-direction: column; gap: 2px; }
.project__row dt { font-size: 12px; font-weight: 700; letter-spacing: .06em; color: var(--ink-400); text-transform: uppercase; }
.project__row dd { margin: 0; font-size: 14px; color: var(--ink-700); }
.status {
  align-self: flex-start; padding: 4px 12px; border-radius: var(--r-full);
  font-size: 12px; font-weight: 700;
}
.status--ongoing { background: var(--brand-100); color: var(--brand-800); }
.status--done { background: var(--surface-3); color: var(--ink-500); }

/* ------------------------------- 12. Team ------------------------------- */
.pi {
  display: grid; grid-template-columns: minmax(260px, 32%) 1fr; gap: clamp(32px, 5vw, 72px);
  padding: clamp(24px, 4vw, 56px); border-radius: var(--r-2xl);
  background: linear-gradient(145deg, var(--brand-900), var(--brand-800));
  border: 1px solid rgba(255,255,255,.12); color: #fff;
  box-shadow: var(--shadow-md); overflow: hidden;
}
.pi__portrait { position: relative; align-self: start; }
.pi__photo {
  width: 100%; aspect-ratio: 4 / 5; border-radius: var(--r-xl);
  object-fit: cover; object-position: center top; background: var(--surface-2);
  border: 1px solid rgba(255,255,255,.18);
}
.pi__badge {
  position: absolute; right: var(--s-4); bottom: var(--s-4);
  padding: 7px 12px; border-radius: var(--r-full);
  background: var(--gold-500); color: var(--brand-900);
  font-size: 11px; font-weight: 800; letter-spacing: .05em; text-transform: uppercase;
}
.pi__content { min-width: 0; }
.pi__content .eyebrow { color: var(--gold-500); }
.pi__name { margin-top: var(--s-3); font-size: clamp(32px, 4vw, 50px); font-weight: 700; color: #fff; letter-spacing: -.02em; }
.pi__role { margin-top: 6px; font-size: 15px; font-weight: 600; color: var(--gold-500); line-height: 1.55; }
.pi__bio { margin-top: var(--s-5); max-width: 72ch; color: rgba(255,255,255,.82); line-height: 1.82; }
.pi__metrics {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px; margin-top: var(--s-6); overflow: hidden;
  border: 1px solid rgba(255,255,255,.14); border-radius: var(--r-lg);
  background: rgba(255,255,255,.14);
}
.pi__metrics li { display: flex; flex-direction: column; gap: 3px; padding: 16px; background: rgba(10,29,52,.72); }
.pi__metrics strong { color: #fff; font-family: var(--font-mono); font-size: 20px; }
.pi__metrics span { color: rgba(255,255,255,.62); font-size: 12px; }
.pi__contact { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--s-5) var(--s-7); margin-top: var(--s-6); padding-top: var(--s-6); border-top: 1px solid rgba(255,255,255,.16); }
.pi__contact div { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.pi__contact dt { font-size: 11px; font-weight: 700; letter-spacing: .07em; color: rgba(255,255,255,.48); text-transform: uppercase; }
.pi__contact dd { margin: 0; font-size: 14px; color: rgba(255,255,255,.84); line-height: 1.65; }
.pi__contact a { color: var(--gold-500); overflow-wrap: anywhere; }

.member {
  display: flex; flex-direction: column; gap: var(--s-3);
  padding: var(--s-6); border-radius: var(--r-lg);
  background: var(--canvas); border: 1px solid var(--line-soft); text-align: center;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.member:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--brand-300); }
.member__photo {
  width: 104px; height: 130px; margin-inline: auto; border-radius: var(--r-md);
  object-fit: cover; object-position: center top; background: var(--surface-2); border: 1px solid var(--line-soft);
}
.member__name { font-size: 16.5px; font-weight: 700; color: var(--ink-900); }
.member__role { font-size: 13px; color: var(--brand-700); font-weight: 600; }
.member__topic { font-size: 13.5px; color: var(--ink-500); line-height: 1.6; }

.team-groups { display: flex; flex-direction: column; gap: clamp(52px, 7vw, 88px); }
.team-group { scroll-margin-top: 112px; }
.team-group__head {
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--s-5); margin-bottom: var(--s-6); padding-bottom: var(--s-4); border-bottom: 1px solid var(--line);
}
.team-group__head h3 { font-size: 22px; color: var(--ink-900); }
.team-group__head p { margin-top: 5px; max-width: 66ch; color: var(--ink-500); font-size: 13.5px; line-height: 1.6; }
.team-group__head span {
  display: grid; place-items: center; min-width: 34px; height: 28px;
  padding-inline: 10px; border-radius: var(--r-full);
  background: var(--brand-100); color: var(--brand-800); font-size: 13px; font-weight: 700;
}

.facility__image {
  width: 100%; aspect-ratio: 16 / 8.5; object-fit: cover;
  border-radius: var(--r-lg); border: 1px solid var(--line-soft);
}

.org-map {
  display: grid; grid-template-columns: 1.1fr 2fr; gap: var(--s-5);
  align-items: stretch;
}
.org-map__lead, .org-map__branch {
  padding: var(--s-7); border-radius: var(--r-xl); border: 1px solid var(--line-soft);
  background: var(--canvas);
}
.org-map__lead { background: linear-gradient(150deg, var(--brand-900), var(--brand-700)); color: #fff; }
.org-map__lead h3, .org-map__lead p { color: #fff; }
.org-map__lead p { margin-top: var(--s-3); color: rgba(255,255,255,.76); }
.org-map__branches { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--s-4); }
.org-map__branch h3 { font-size: 17px; }
.org-map__branch p { margin-top: 6px; color: var(--ink-500); font-size: 14px; }

/* ------------------------------- 13. News ------------------------------- */
.news-item {
  display: grid; grid-template-columns: 116px 1fr; gap: var(--s-6);
  padding: var(--s-6) 0; border-bottom: 1px solid var(--line-soft);
}
.news-item:first-child { padding-top: 0; }
.news-item__date { font-family: var(--font-mono); font-size: 14px; font-weight: 700; color: var(--brand-700); }
.news-item__tag {
  display: inline-block; margin-top: 6px; padding: 3px 10px;
  border-radius: var(--r-full); font-size: 11.5px; font-weight: 700;
  background: var(--surface-2); color: var(--ink-500);
}
.news-item__tag--event { background: var(--violet-100); color: var(--violet-600); }
.news-item__tag--award { background: var(--gold-100); color: var(--gold-600); }
.news-item__tag--notice { background: var(--brand-100); color: var(--brand-800); }
.news-item__title { font-size: 17.5px; font-weight: 700; color: var(--ink-900); line-height: 1.5; }
.news-item__title:hover { color: var(--brand-700); }
.news-item__sum { margin-top: 6px; color: var(--ink-500); font-size: 15px; }

.news-card {
  display: flex; flex-direction: column; gap: var(--s-3);
  padding: var(--s-7); border-radius: var(--r-xl);
  background: var(--canvas); border: 1px solid var(--line-soft);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.news-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--brand-300); }
.news-card__date { font-family: var(--font-mono); font-size: 13px; font-weight: 700; color: var(--brand-700); }
.news-source {
  width: fit-content; margin-top: auto; color: var(--brand-700); font-size: 14px; font-weight: 700;
  text-decoration: none; border-bottom: 1px solid color-mix(in srgb, var(--brand-700) 35%, transparent);
}
.news-source:hover { color: var(--brand-700); border-bottom-color: currentColor; }

/* ----------------------------- 14. Showcase ----------------------------- */
.shot { margin: 0; display: flex; flex-direction: column; gap: var(--s-4); }
.shot__frame {
  border-radius: var(--r-xl); overflow: hidden;
  background: var(--surface-2); border: 1px solid var(--line-soft);
}
.shot__frame img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; transition: transform .4s ease; }
.shot:hover .shot__frame img { transform: scale(1.04); }
.shot__title { font-size: 18px; }
.shot__text { margin-top: 6px; color: var(--ink-500); font-size: 15px; }

/* ----------------------------- 15. Contact ------------------------------ */
.contact-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--s-5); }
.contact-grid--two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.contact-card {
  display: flex; gap: var(--s-4); padding: var(--s-6);
  border-radius: var(--r-lg); background: var(--canvas);
  border: 1px solid var(--line-soft);
}
.contact-card__icon {
  flex: 0 0 auto; display: grid; place-items: center;
  width: 42px; height: 42px; border-radius: var(--r-md);
  background: var(--brand-100); color: var(--brand-700); font-size: 18px;
}
.contact-card dl { margin: 0; }
.contact-card dt { font-size: 12px; font-weight: 700; letter-spacing: .06em; color: var(--ink-400); text-transform: uppercase; }
.contact-card dd { margin: 4px 0 0; font-size: 15px; color: var(--ink-800); word-break: break-word; }
.contact-card dd a { color: var(--brand-700); font-weight: 600; }

.cta-box {
  display: flex; flex-direction: column; align-items: flex-start; gap: var(--s-4);
  padding: var(--s-9); border-radius: var(--r-2xl);
  background: linear-gradient(150deg, var(--brand-800), var(--brand-900));
  color: #fff;
}
.cta-box h2 { color: #fff; }
.cta-box p { color: rgba(255, 255, 255, .78); max-width: 58ch; }

/* ------------------------------ 16. Footer ------------------------------ */
.site-footer {
  padding-block: var(--s-10) var(--s-6);
  background: var(--brand-900); color: rgba(255, 255, 255, .7);
  font-size: 14.5px;
}
.footer__grid {
  display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: var(--s-8); padding-bottom: var(--s-8);
}
.footer__title {
  margin-bottom: var(--s-4); font-size: 13px; font-weight: 700;
  letter-spacing: .1em; text-transform: uppercase; color: #fff;
}
.footer__brand { display: flex; align-items: center; gap: var(--s-3); margin-bottom: var(--s-4); }
.footer__brand .brand__mark { background: var(--brand-900); box-shadow: none; }
.footer__brand .brand__name { color: #fff; }
.footer__list { display: flex; flex-direction: column; gap: var(--s-2); }
.footer__list a { color: rgba(255, 255, 255, .68); }
.footer__list a:hover { color: #fff; }
.footer__bottom {
  display: flex; flex-wrap: wrap; gap: var(--s-4);
  justify-content: space-between; align-items: center;
  padding-top: var(--s-6); border-top: 1px solid rgba(255, 255, 255, .12);
  font-size: 13px; color: rgba(255, 255, 255, .5);
}

/* ------------------------------ 17. Utility ----------------------------- */
.note {
  margin-top: var(--s-6); padding: var(--s-4) var(--s-5);
  border-left: 3px solid var(--brand-300); border-radius: 0 var(--r-md) var(--r-md) 0;
  background: var(--brand-50); color: var(--ink-600); font-size: 14px;
}
.noscript-note {
  padding: var(--s-4) var(--s-5); border-radius: var(--r-md);
  background: var(--gold-100); color: var(--ink-800); font-size: 14px;
}
.mt-0 { margin-top: 0; }
.mt-6 { margin-top: var(--s-6); }
.mt-8 { margin-top: var(--s-8); }
.section__foot { margin-top: var(--s-8); display: flex; justify-content: center; }

/* 滚动显现 */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.js .reveal { will-change: opacity, transform; }
.reveal.is-visible { opacity: 1; transform: none; }
html:not(.js) .reveal { opacity: 1; transform: none; }

/* ---------------------------- 18. Responsive ---------------------------- */
@media (max-width: 1180px) {
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--4 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .footer__grid { grid-template-columns: 1fr 1fr; gap: var(--s-7); }
}

@media (max-width: 980px) {
  :root { --header-h: 64px; }
  .container { padding-inline: var(--s-5); }
  .brand { min-width: 0; max-width: calc(100% - 58px); flex: 1 1 auto; }
  .site-header .brand__text { min-width: 0; }
  .site-header .brand__name, .site-header .brand__name-en { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

  .header__right {
    position: fixed; inset: var(--header-h) 0 auto 0;
    flex-direction: column; align-items: stretch; gap: var(--s-4);
    margin: 0; padding: var(--s-5) var(--s-5) var(--s-7);
    background: var(--canvas); border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-md);
    transform: translateY(-12px); opacity: 0; visibility: hidden;
    transition: opacity .2s ease, transform .2s ease, visibility .2s;
    max-height: calc(100vh - var(--header-h)); overflow-y: auto;
  }
  .header__right.is-open { transform: none; opacity: 1; visibility: visible; }
  .nav ul { flex-direction: column; align-items: stretch; gap: 2px; }
  .nav a { padding: 12px 14px; border-radius: var(--r-md); font-size: 16px; }
  .nav a[aria-current="page"] { background: var(--brand-50); }
  .lang { align-self: flex-start; }
  .menu-toggle { display: grid; place-items: center; }

  .hero { padding-block: var(--s-9) var(--s-8); }
  .hero__inner, .hero--page .hero__inner { grid-template-columns: 1fr; gap: var(--s-7); }
  .hero__media { order: -1; }
  .hero__float { position: static; margin-top: var(--s-4); }
  .hero__stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }

  .section { padding-block: var(--s-10); }
  .bento { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .bento__item, .bento__item--wide, .bento__item--feature { grid-column: span 1; }
  .bento--three { grid-template-columns: 1fr; }
  .bento--three .bento__item,
  .bento--three .bento__item--wide,
  .bento--three .bento__item--feature { grid-column: 1; grid-template-columns: 1fr; }
  .research-cluster__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .research-cluster__grid .research-card:last-child { grid-column: 1 / -1; }
  .research-cluster__grid .research-card:last-child { display: grid; grid-template-columns: minmax(240px, .8fr) minmax(0, 1.2fr); }
  .research-cluster__grid .research-card:last-child .research-card__media { min-height: 100%; }
  .research-cluster__grid .research-card:last-child .research-card__image { height: 100%; }
  .grid--3, .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .research-workflow ol { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .research-workflow li:not(:last-child)::after { display: none; }

  .pi { grid-template-columns: 1fr; gap: var(--s-7); padding: var(--s-7); }
  .pi__portrait { width: min(280px, 100%); }
  .project { grid-template-columns: 1fr; gap: var(--s-5); padding: var(--s-6); }
  .project__side { padding-left: 0; border-left: 0; border-top: 1px solid var(--line-soft); padding-top: var(--s-5); flex-direction: row; flex-wrap: wrap; gap: var(--s-6); }
  .contact-grid { grid-template-columns: 1fr; }
  .org-map { grid-template-columns: 1fr; }
  .cta-box { padding: var(--s-7); }
}

@media (max-width: 760px) {
  .research-cluster__head { grid-template-columns: 1fr; gap: var(--s-4); }
  .research-cluster__count { align-self: auto; justify-self: start; }
  .research-cluster__grid { grid-template-columns: 1fr; }
  .research-cluster__grid .research-card:last-child { grid-column: auto; display: flex; }
  .research-cluster__grid .research-card:last-child .research-card__media { min-height: 0; }
  .research-cluster__grid .research-card:last-child .research-card__image { height: auto; }
  .pub { grid-template-columns: 1fr; gap: var(--s-3); padding: var(--s-5); }
  .pub__actions { justify-content: flex-start; }
  .news-item { grid-template-columns: 1fr; gap: var(--s-3); }
  .news-item__date { display: flex; align-items: center; gap: var(--s-3); }
  .news-item__tag { margin-top: 0; }
  .footer__grid { grid-template-columns: 1fr; gap: var(--s-7); }
}

@media (max-width: 520px) {
  body { font-size: 15.5px; }
  .container { padding-inline: var(--s-4); }
  .brand__mark { width: 36px; height: 36px; flex: 0 0 auto; }
  .site-header .brand__name { font-size: 13px; }
  .site-header .brand__name-en { font-size: 9px; }
  .hero__quick { gap: var(--s-5); }
  .stats, .grid--2, .grid--3, .grid--4, .bento { grid-template-columns: 1fr; }
  .research-foundation, .research-workflow ol { grid-template-columns: 1fr; }
  .hero__stats { grid-template-columns: 1fr; }
  .section { padding-block: var(--s-9); }
  .section__head { margin-bottom: var(--s-7); }
  .pi { padding: var(--s-5); border-radius: var(--r-xl); }
  .pi__portrait { width: 100%; }
  .pi__metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .pi__contact { grid-template-columns: 1fr; gap: var(--s-4); }
  .team-group__head { align-items: flex-start; }
  .card, .bento__item { padding: var(--s-6); }
  .research-cluster { margin-inline: calc(var(--s-2) * -1); padding: var(--s-5); border-radius: var(--r-xl); }
  .research-cluster .research-card { padding: 0; }
  .btn { width: 100%; }
  .hero__actions { width: 100%; }
  .footer__bottom { flex-direction: column; align-items: flex-start; }
  .org-map__branches { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}