/* RenaSci · 学术名片目录页 —— 与宣言站、问题网络同一套平台样式：近黑、酸性绿、硬边卡片。 */
:root {
  --void: #060607; --void-rgb: 6, 6, 7; --acid-rgb: 212, 255, 38; --fg-rgb: 233, 235, 227;
  --panel: #0d0e0f;
  --acid: #d4ff26;
  --acid-ink: #0b0c05;
  --paper: #ecede6;
  --fg: #e9ebe3;
  --fg-3: #cfd3c7;
  --dim: #8f9486;
  --line: rgba(var(--acid-rgb), .26);
  --line-soft: rgba(var(--fg-rgb), .12);
  --f-sans: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --f-disp: "Archivo", "Arial Narrow", "Noto Sans SC", sans-serif;
  --f-mono: "Martian Mono", "Noto Sans SC", ui-monospace, "SFMono-Regular", Consolas, monospace;
  --bar: 56px;
  --gut: clamp(16px, 3.2vw, 44px);
  color-scheme: dark;
}
*, *::before, *::after { box-sizing: border-box; }
html { background: var(--void); -webkit-text-size-adjust: 100%; }
body.sx { margin: 0; background: var(--void); color: var(--fg); font-family: var(--f-sans); font-size: 16px; line-height: 1.7; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
img { max-width: 100%; display: block; }
a { color: inherit; }
p { margin: 0 0 1em; }
h1, h2, h3 { margin: 0; font-weight: 900; }
:focus-visible { outline: 2px solid var(--acid); outline-offset: 2px; }
::selection { background: var(--acid); color: var(--acid-ink); }
.skip { position: fixed; left: 8px; top: -80px; z-index: 100; background: var(--acid); color: var(--acid-ink); padding: 8px 12px; font-family: var(--f-mono); font-size: 12px; text-decoration: none; }
.skip:focus { top: 8px; }
body.sx::after { content: ""; position: fixed; inset: 0; z-index: 70; pointer-events: none; background: repeating-linear-gradient(0deg, rgba(255, 255, 255, .02) 0 1px, transparent 1px 3px); }

/* 顶栏（与问题网络一致） */
.nbar { position: fixed; z-index: 60; top: 0; left: 0; right: 0; height: calc(var(--bar) + env(safe-area-inset-top, 0px)); padding-top: env(safe-area-inset-top, 0px); display: flex; align-items: stretch; background: rgba(var(--void-rgb), .92); border-bottom: 1px solid var(--line); }
.nbar__logo { flex: 0 0 var(--bar); display: grid; place-items: center; background: var(--acid); color: var(--acid-ink); }
.nbar__logo svg { width: 20px; height: 22px; fill: currentColor; }
.nbar__brand { display: flex; flex-direction: column; justify-content: center; padding: 0 16px; text-decoration: none; font-family: var(--f-mono); font-size: 10px; letter-spacing: .06em; line-height: 1.35; white-space: nowrap; }
.nbar__brand b { font-family: var(--f-disp); font-stretch: 115%; font-weight: 800; font-size: 15px; letter-spacing: .01em; }
.nbar__brand span { color: var(--dim); }
.nbar__brand:hover span { color: var(--acid); }
.nbar__nav { margin-left: auto; display: flex; align-items: stretch; }
.nbar__nav a { display: flex; align-items: center; gap: 6px; padding: 0 16px; border-left: 1px solid var(--line-soft); text-decoration: none; font-family: var(--f-mono); font-size: 11px; letter-spacing: .06em; white-space: nowrap; }
.nbar__nav a:hover { color: var(--acid); }
.nbar__nav a[aria-current="page"] { background: rgba(var(--acid-rgb), .1); color: var(--acid); box-shadow: inset 0 -2px 0 var(--acid); }
.nbar__nav i { font-style: normal; color: var(--acid); }

.tag { display: flex; flex-wrap: wrap; gap: 0; margin: 0 0 18px; font-family: var(--f-mono); font-size: 11px; letter-spacing: .08em; line-height: 1; }
.tag > * { padding: 6px 10px; border: 1px solid var(--line); margin-right: -1px; background: rgba(var(--void-rgb), .75); }
.tag b { background: var(--acid); color: var(--acid-ink); border-color: var(--acid); font-weight: 600; }
.btn { display: inline-flex; align-items: center; gap: 10px; min-height: 44px; padding: 0 18px; text-decoration: none; font-family: var(--f-mono); font-size: 12px; letter-spacing: .04em; border: 1px solid var(--acid); transition: background .15s, color .15s; }
.btn--acid { background: var(--acid); color: var(--acid-ink); font-weight: 600; }
.btn--acid:hover { background: var(--paper); border-color: var(--paper); }
.btn--line { color: var(--acid); background: rgba(var(--void-rgb), .6); }
.btn--line:hover { background: var(--acid); color: var(--acid-ink); }

/* 首屏 */
main { padding-top: var(--bar); }
.sx__hero { max-width: 1240px; margin: 0 auto; padding: clamp(56px, 9vw, 120px) var(--gut) 48px; }
.sx__hero h1 { font-size: clamp(56px, 10vw, 148px); line-height: .98; letter-spacing: -.02em; margin: 0 0 28px; }
.sx__lede { max-width: 46em; font-size: 18px; line-height: 1.9; color: var(--fg-3); }
.sx__en { max-width: 52em; font-family: var(--f-disp); font-stretch: 92%; font-size: 15px; line-height: 1.6; color: var(--dim); }

/* 名片 */
.sx__cards { max-width: 1240px; margin: 0 auto; padding: 0 var(--gut); display: grid; gap: 40px; }
.sc { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(0, 1fr); border: 1px solid var(--line); background: var(--panel); }
.sc__shot { display: block; position: relative; overflow: hidden; border-right: 1px solid var(--line); background: #000; }
.sc__shot img { width: 100%; height: 100%; object-fit: cover; object-position: 0 0; transition: transform .6s ease; }
.sc__shot:hover img { transform: scale(1.03); }
@media (prefers-reduced-motion: reduce) { .sc__shot img { transition: none; } }
.sc__body { padding: 32px 34px 34px; min-width: 0; }
.sc h2 { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 16px; font-size: clamp(36px, 4vw, 56px); line-height: 1.05; margin: 0 0 12px; }
.sc h2 a { text-decoration: none; }
.sc h2 a:hover { color: var(--acid); }
.sc h2 span { font-family: var(--f-disp); font-stretch: 115%; font-weight: 700; font-size: 18px; letter-spacing: .01em; color: var(--dim); }
.sc__role { color: var(--fg-3); font-size: 15.5px; }
.sc__k { margin: 18px 0 8px; font-family: var(--f-mono); font-size: 11px; letter-spacing: .06em; color: var(--acid); }
.sc__qs { list-style: none; margin: 0 0 16px; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.sc__qs a { display: block; padding: 4px 10px; border: 1px solid var(--line-soft); text-decoration: none; font-size: 14px; line-height: 1.6; color: var(--fg); }
.sc__qs a:hover { border-color: var(--acid); color: var(--acid); }
.sc__x { font-size: 14.5px; line-height: 1.8; color: var(--dim); }
.sc__btns { display: flex; flex-wrap: wrap; gap: 10px; margin: 20px 0 0; }

.sx__more { max-width: 1240px; margin: 0 auto; padding: 88px var(--gut) 40px; }
.sx__more h2 { font-size: clamp(28px, 3.4vw, 44px); line-height: 1.1; margin: 0 0 18px; }
.sx__more p { max-width: 46em; color: var(--fg-3); font-size: 16.5px; line-height: 1.9; }
.sx__foot { max-width: 1240px; margin: 0 auto; padding: 28px var(--gut) 56px; display: flex; flex-wrap: wrap; gap: 10px 24px; border-top: 1px solid var(--line-soft); font-family: var(--f-mono); font-size: 11px; letter-spacing: .05em; }
.sx__foot a { color: var(--dim); text-decoration: none; }
.sx__foot a:hover { color: var(--acid); }

@media (max-width: 900px) {
  .sc { grid-template-columns: minmax(0, 1fr); }
  .sc__shot { border-right: 0; border-bottom: 1px solid var(--line); aspect-ratio: 16 / 10; }
  .sc__body { padding: 24px 20px 26px; }
}
@media (max-width: 620px) {
  .nbar__brand span { display: none; }
  .nbar__nav a { padding: 0 10px; font-size: 10px; }
  .nbar__home { display: none !important; }
  .sx__lede { font-size: 16.5px; }
}

/* 三代师承：目录页的谱系 */
.sx__tree { margin-top: 36px; }
.tree, .tree ol { list-style: none; margin: 0; padding: 0; }
.tree { display: inline-block; font-size: 17px; }
.tree ol { position: relative; margin-left: 26px; padding-left: 18px; border-left: 1px solid var(--line); }
.tree li { position: relative; padding: 4px 0; }
.tree ol > li::before { content: ""; position: absolute; left: -18px; top: 1.05em; width: 14px; border-top: 1px solid var(--line); }
.tree a { text-decoration: none; font-weight: 700; }
.tree a:hover { color: var(--acid); }
.tree ol ol { display: flex; flex-wrap: wrap; gap: 4px 22px; border-left: 0; padding-left: 18px; }
.tree ol ol > li::before { display: none; }
.tree ol ol::before { content: ""; position: absolute; left: 0; top: 1.05em; width: 14px; border-top: 1px solid var(--line); }
.gen { display: grid; gap: 14px; }
.gen__h { margin: 18px 0 0; font-family: var(--f-mono); font-size: 11px; letter-spacing: .08em; color: var(--acid); }
.gen__grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px; }
.sc--v { grid-template-columns: minmax(0, 1fr); align-content: start; }
.sc--v .sc__shot { border-right: 0; border-bottom: 1px solid var(--line); aspect-ratio: 16 / 10; }
.sc--v .sc__body { padding: 24px 24px 26px; }
.sc--v h2 { font-size: clamp(32px, 3.2vw, 44px); }
@media (max-width: 900px) {
  .gen__grid { grid-template-columns: minmax(0, 1fr); }
}
/* 共同的前辈：不在师承线上，单列一行 */
.sc__k--he { margin-top: 18px; }
.tree--he { margin: 6px 0 0; }