/* ============================================================
   神话娱乐方方 · 共享样式表  /assets/site.css
   刊头导航 + 目录型内容地图 + 古籍装订质感
   ============================================================ */

/* 1. 设计令牌 ------------------------------------------------ */
:root {
  --ink: #11100E;
  --paper: #F7F2E8;
  --stone: #E4DCCD;
  --cinnabar: #C43D2B;
  --cinnabar-deep: #8C291D;
  --bronze: #2E5A49;
  --bronze-light: #72927E;
  --mist: #B7AD9E;
  --sand: #D5A33F;
  --deep: #1D1B17;
  --ink-2: #57503F;

  --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", "SimSun", serif;
  --sans: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --mono: ui-monospace, "JetBrains Mono", "IBM Plex Mono", "SFMono-Regular", Menlo, Consolas, monospace;

  --wrap: 1180px;
  --line: rgba(17, 16, 14, .14);
  --line-soft: rgba(17, 16, 14, .09);
  --radius: 3px;
  --ease: cubic-bezier(.2, .7, .3, 1);
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.85;
  letter-spacing: .012em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

@media (min-width: 1280px) { body { font-size: 17px; } }

img, svg { max-width: 100%; height: auto; display: block; }
button, input, select, textarea { font: inherit; color: inherit; }
main { display: block; }
[hidden] { display: none !important; }

::selection { background: var(--sand); color: var(--ink); }

/* 3. 基础排版 ------------------------------------------------ */
h1, h2, h3, h4 {
  font-family: var(--serif);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: .004em;
  margin: 0 0 .6em;
  color: var(--ink);
}
h1 { font-size: clamp(1.85rem, 4.6vw, 3rem); line-height: 1.2; }
h2 { font-size: clamp(1.4rem, 3vw, 2rem); }
h3 { font-size: clamp(1.08rem, 2vw, 1.3rem); }
h4 { font-size: 1.02rem; }

p { margin: 0 0 1.1em; }

a { color: var(--cinnabar); text-decoration: none; }
a:hover { color: var(--cinnabar-deep); }

strong { font-weight: 700; }

.mono { font-family: var(--mono); letter-spacing: .04em; }

/* 4. 跳过链接与焦点 ------------------------------------------ */
.skip-link {
  position: absolute;
  left: 0;
  top: 0;
  z-index: 200;
  transform: translateY(-140%);
  background: var(--ink);
  color: var(--paper);
  padding: .7rem 1.15rem;
  font-family: var(--mono);
  font-size: .74rem;
  letter-spacing: .12em;
  border-bottom-right-radius: var(--radius);
  transition: transform .2s var(--ease);
}
.skip-link:focus { transform: translateY(0); color: var(--paper); }

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

/* 5. 容器与章节 ---------------------------------------------- */
.wrap {
  width: min(var(--wrap), 100% - 2.5rem);
  margin-inline: auto;
}
.wrap--narrow { width: min(780px, 100% - 2.5rem); }

.section {
  position: relative;
  padding: clamp(2.6rem, 7vw, 5.2rem) 0;
}
.section--stone { background: var(--stone); }
.section--ink { background: var(--ink); color: #E9E2D4; }
.section--ink h1, .section--ink h2, .section--ink h3, .section--ink h4 { color: var(--paper); }
.section--ink a { color: var(--sand); }
.section--deep { background: var(--deep); color: var(--stone); }
.section--deep h2, .section--deep h3 { color: var(--paper); }
.section--tight { padding-top: clamp(1.2rem, 3vw, 2rem); padding-bottom: clamp(1.2rem, 3vw, 2rem); }

/* 6. 刊头 ---------------------------------------------------- */
.masthead {
  position: relative;
  z-index: 40;
  background: var(--paper);
  border-bottom: 1px solid var(--ink);
}

.masthead__micro {
  background: var(--ink);
  color: var(--stone);
}
.masthead__micro-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: .65rem;
  min-height: 2.1rem;
  padding: .32rem 0;
}
.mono-tag {
  font-family: var(--mono);
  font-size: .66rem;
  letter-spacing: .18em;
  line-height: 1.6;
}
.masthead__micro-dot {
  flex: none;
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--sand);
}

.masthead__plate { padding: clamp(1rem, 2.6vw, 1.8rem) 0 .35rem; }
.masthead__plate-inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: .75rem;
}
.masthead__brand {
  grid-column: 2;
  min-width: 0;
  text-align: center;
  color: inherit;
  text-decoration: none;
}
.masthead__title {
  display: block;
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(1.2rem, 3.4vw, 2.4rem);
  line-height: 1.12;
  letter-spacing: .05em;
  color: var(--ink);
  transition: color .25s var(--ease);
}
.masthead__brand:hover .masthead__title { color: var(--cinnabar); }
.masthead__tagline {
  display: block;
  margin-top: .42rem;
  font-family: var(--mono);
  font-size: .66rem;
  letter-spacing: .3em;
  color: var(--bronze);
}
.masthead__cta { grid-column: 3; justify-self: end; }

.nav-toggle {
  grid-column: 1;
  justify-self: start;
  display: none;
  align-items: center;
  gap: .5rem;
  padding: .42rem .58rem;
  background: transparent;
  border: 1px solid rgba(17, 16, 14, .3);
  border-radius: var(--radius);
  color: var(--ink);
  font-family: var(--mono);
  font-size: .66rem;
  letter-spacing: .14em;
  cursor: pointer;
  transition: border-color .2s var(--ease), color .2s var(--ease);
}
.nav-toggle:hover { border-color: var(--cinnabar); color: var(--cinnabar); }
.nav-toggle__bars { display: grid; gap: 4px; width: 15px; flex: none; }
.nav-toggle__bars span {
  display: block;
  height: 1.5px;
  background: currentColor;
  transition: transform .26s var(--ease), opacity .2s linear;
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1) { transform: translateY(5.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(3) { transform: translateY(-5.5px) rotate(-45deg); }
.nav-toggle__label { line-height: 1; }

.masthead__nav {
  border-top: 1px solid var(--line-soft);
  background: var(--paper);
}
.nav-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: clamp(.6rem, 2.8vw, 2.2rem);
  margin: 0;
  padding: 0;
  list-style: none;
}
.nav-list__link {
  position: relative;
  display: inline-block;
  padding: .78rem .12rem;
  font-family: var(--serif);
  font-weight: 700;
  font-size: .96rem;
  letter-spacing: .1em;
  color: var(--ink);
  text-decoration: none;
  transition: color .2s var(--ease);
}
.nav-list__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: .5rem;
  height: 1px;
  background: var(--cinnabar);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .28s var(--ease);
}
.nav-list__link:hover,
.nav-list__link:focus-visible { color: var(--cinnabar); }
.nav-list__link:hover::after,
.nav-list__link:focus-visible::after { transform: scaleX(1); }
.nav-list__link[aria-current="page"] { color: var(--cinnabar); }
.nav-list__link[aria-current="page"]::after { transform: scaleX(1); }
.nav-list__link[aria-current="page"]::before {
  content: "";
  position: absolute;
  top: .42rem;
  left: 50%;
  width: 4px;
  height: 4px;
  margin-left: -2px;
  border-radius: 50%;
  background: var(--sand);
}

/* 7. 按钮 ---------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .45rem;
  padding: .72rem 1.3rem;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-family: var(--sans);
  font-size: .92rem;
  font-weight: 600;
  letter-spacing: .04em;
  line-height: 1.4;
  text-decoration: none;
  cursor: pointer;
  transition: background-color .22s var(--ease), border-color .22s var(--ease), color .22s var(--ease), transform .22s var(--ease);
}
.btn--primary { background: var(--cinnabar); border-color: var(--cinnabar); color: var(--paper); }
.btn--primary:hover {
  background: var(--cinnabar-deep);
  border-color: var(--cinnabar-deep);
  color: var(--paper);
  transform: translateY(-1px);
}
.btn--ghost { background: transparent; border-color: var(--ink); color: var(--ink); }
.btn--ghost:hover { border-color: var(--cinnabar); color: var(--cinnabar); }
.btn--bronze { background: var(--bronze); border-color: var(--bronze); color: var(--paper); }
.btn--bronze:hover { background: #24473A; border-color: #24473A; color: var(--paper); }
.section--ink .btn--ghost { border-color: var(--mist); color: var(--paper); }
.section--ink .btn--ghost:hover { border-color: var(--sand); color: var(--sand); }

/* 8. 面包屑 -------------------------------------------------- */
.crumbs {
  margin: 0 0 1.6rem;
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .08em;
  color: var(--ink-2);
}
.crumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: .45rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.crumbs li { display: flex; align-items: center; gap: .45rem; }
.crumbs li::after { content: "/"; color: var(--mist); }
.crumbs li:last-child::after { content: ""; }
.crumbs a { color: var(--ink-2); border-bottom: 1px solid transparent; }
.crumbs a:hover { color: var(--cinnabar); border-bottom-color: var(--cinnabar); }

/* 9. 正文流 -------------------------------------------------- */
.prose { max-width: 46rem; }
.prose > * + * { margin-top: 1.05em; }
.prose p { margin: 0 0 1.15em; }
.prose h2 { margin: 2.1em 0 .7em; }
.prose h3 { margin: 1.7em 0 .6em; }
.prose ul, .prose ol { padding-left: 1.3em; margin: 0 0 1.15em; }
.prose li { margin: .35em 0; }
.prose li::marker { color: var(--cinnabar); }
.prose a { color: var(--cinnabar); border-bottom: 1px solid rgba(196, 61, 43, .4); }
.prose a:hover { border-bottom-color: var(--cinnabar); }
.prose code {
  font-family: var(--mono);
  font-size: .88em;
  padding: .1em .4em;
  background: var(--stone);
  border-radius: 2px;
}
.prose blockquote {
  margin: 1.6em 0;
  padding: .2rem 0 .2rem 1.2rem;
  border-left: 3px solid var(--sand);
  color: var(--ink-2);
}
.section--ink .prose a { color: var(--sand); border-bottom-color: rgba(213, 163, 63, .45); }

.lead {
  max-width: 34rem;
  font-size: clamp(1rem, 1.5vw, 1.16rem);
  line-height: 1.95;
  color: var(--ink-2);
}
.section--ink .lead { color: #CFC6B4; }

.kicker {
  display: block;
  margin-bottom: .75rem;
  font-family: var(--mono);
  font-size: .7rem;
  letter-spacing: .24em;
  color: var(--bronze);
}
.section--ink .kicker { color: var(--sand); }

/* 10. 网格 --------------------------------------------------- */
.grid { display: grid; gap: clamp(1rem, 2.6vw, 2rem); }
.grid--split { grid-template-columns: minmax(0, 1.9fr) minmax(0, 1fr); }
.grid--split-rev { grid-template-columns: minmax(0, 1fr) minmax(0, 1.9fr); }
.grid--cards { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.grid--rail { grid-template-columns: minmax(0, 1fr) 14rem; align-items: start; }

/* 11. 卡片 --------------------------------------------------- */
.card {
  position: relative;
  display: block;
  padding: clamp(1.05rem, 2.4vw, 1.6rem);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 4px;
  color: inherit;
  text-decoration: none;
  transition: transform .24s var(--ease), border-color .24s var(--ease), box-shadow .24s var(--ease);
}
a.card:hover, a.card:focus-visible {
  transform: translateY(-3px);
  border-color: var(--cinnabar);
  box-shadow: 0 14px 28px -22px rgba(17, 16, 14, .75);
}
.card__kicker {
  display: block;
  margin-bottom: .5rem;
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .16em;
  color: var(--bronze);
}
.card__title {
  margin: 0 0 .42rem;
  font-family: var(--serif);
  font-size: 1.1rem;
  font-weight: 800;
  line-height: 1.42;
}
.card__meta {
  margin: 0;
  font-size: .84rem;
  line-height: 1.75;
  color: var(--ink-2);
}
.section--ink .card { background: #191713; border-color: rgba(247, 242, 232, .16); color: var(--stone); }
.section--ink .card__title { color: var(--paper); }
.section--ink .card__kicker { color: var(--sand); }

/* 12. 状态面板 ----------------------------------------------- */
.panel {
  padding: clamp(1rem, 2.2vw, 1.5rem);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 4px;
}
.panel__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: .5rem 1rem;
  padding-bottom: .7rem;
  margin-bottom: .9rem;
  border-bottom: 1px solid var(--line-soft);
}
.panel__label {
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .18em;
  color: var(--bronze);
}
.panel__value { font-family: var(--mono); font-size: .85rem; color: var(--ink); }
.panel__row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: .4rem 1rem;
  padding: .5rem 0;
  border-bottom: 1px dashed var(--line-soft);
  font-size: .9rem;
}
.panel__row:last-child { border-bottom: 0; }

/* 13. 标签与状态 --------------------------------------------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  padding: .26rem .58rem;
  border: 1px solid var(--bronze-light);
  border-radius: 2px;
  background: rgba(46, 90, 73, .06);
  color: var(--bronze);
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .1em;
  line-height: 1.6;
}
.tag--sand { border-color: var(--sand); background: rgba(213, 163, 63, .14); color: #8A6416; }
.tag--red { border-color: var(--cinnabar); background: rgba(196, 61, 43, .08); color: var(--cinnabar); }

.status {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  font-family: var(--mono);
  font-size: .7rem;
  letter-spacing: .08em;
  color: var(--bronze);
}
.status::before {
  content: "";
  flex: none;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--bronze);
  box-shadow: 0 0 0 3px rgba(46, 90, 73, .16);
}
.status--sand::before { background: var(--sand); box-shadow: 0 0 0 3px rgba(213, 163, 63, .2); }

/* 14. 图片容器 ----------------------------------------------- */
.figure { margin: 0 0 1.5rem; }
.figure__frame {
  position: relative;
  display: block;
  width: 100%;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: var(--stone);
  border: 1px solid rgba(17, 16, 14, .12);
  border-radius: var(--radius);
}
.figure__frame img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.figure__caption {
  margin-top: .7rem;
  font-family: var(--mono);
  font-size: .72rem;
  line-height: 1.7;
  letter-spacing: .05em;
  color: var(--bronze);
}
.figure--wide .figure__frame { aspect-ratio: 16 / 9; }
.figure--tall .figure__frame { aspect-ratio: 3 / 4; }
.figure--square .figure__frame { aspect-ratio: 1 / 1; }
.figure--arch .figure__frame { border-radius: 50% 50% 4px 4px / 26% 26% 3% 3%; }
.figure--soft .figure__frame { border-radius: 110px 6px 110px 6px; }
.figure--empty .figure__frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(-45deg, transparent 0 9px, rgba(17, 16, 14, .055) 9px 18px);
}
.section--ink .figure__frame { border-color: rgba(247, 242, 232, .18); background: #232019; }
.section--ink .figure__caption { color: var(--mist); }

/* 15. 随行侧栏目录 ------------------------------------------- */
.rail { position: sticky; top: 1.5rem; }
.rail__title {
  margin: 0 0 .8rem;
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .2em;
  color: var(--bronze);
}
.rail__list {
  display: grid;
  gap: .1rem;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}
.rail__link {
  display: block;
  padding: .55rem 0 .55rem .7rem;
  border-left: 2px solid transparent;
  color: var(--ink-2);
  font-size: .88rem;
  line-height: 1.6;
  transition: color .2s var(--ease), border-color .2s var(--ease), padding-left .2s var(--ease);
}
.rail__link:hover { color: var(--cinnabar); border-left-color: var(--mist); }
.rail__link.is-active {
  color: var(--cinnabar);
  border-left-color: var(--cinnabar);
  padding-left: .95rem;
}

/* 16. 页脚 --------------------------------------------------- */
.colophon {
  position: relative;
  overflow: hidden;
  padding: clamp(2.4rem, 6vw, 4.4rem) 0 1.6rem;
  background: var(--deep);
  color: var(--stone);
  font-size: .92rem;
}
.colophon::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  background: linear-gradient(90deg,
    var(--cinnabar) 0 26%,
    var(--sand) 26% 42%,
    var(--bronze) 42% 70%,
    var(--mist) 70% 100%);
}
.colophon :focus-visible { outline-color: var(--sand); }

.colophon__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, .9fr) minmax(0, .9fr) minmax(0, 1.2fr);
  gap: clamp(1.5rem, 4vw, 3rem);
}
.colophon__mark {
  margin: 0 0 .5rem;
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(1.3rem, 2.6vw, 1.75rem);
  letter-spacing: .06em;
  color: var(--paper);
}
.colophon__tagline {
  margin: 0 0 .9rem;
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .24em;
  color: var(--sand);
}
.colophon__note {
  margin: 0;
  max-width: 30rem;
  font-size: .86rem;
  line-height: 1.8;
  color: var(--mist);
}
.colophon__head {
  margin: 0 0 .9rem;
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .2em;
  color: var(--bronze-light);
}
.colophon__list {
  display: grid;
  gap: .55rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.colophon__list a {
  color: var(--stone);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}
.colophon__list a:hover,
.colophon__list a:focus-visible { color: var(--paper); border-bottom-color: var(--cinnabar); }
.colophon__text {
  margin: 0 0 .45rem;
  font-family: var(--mono);
  font-size: .76rem;
  line-height: 1.75;
  color: var(--mist);
  word-break: break-word;
}
.colophon__base {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: .7rem 1.5rem;
  margin-top: clamp(1.6rem, 4vw, 2.6rem);
  padding-top: 1.15rem;
  border-top: 1px solid rgba(247, 242, 232, .16);
}
.colophon__legal {
  margin: 0;
  font-family: var(--mono);
  font-size: .7rem;
  letter-spacing: .08em;
  color: var(--mist);
}

.totop {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  padding: .5rem .95rem;
  background: transparent;
  border: 1px solid rgba(247, 242, 232, .35);
  border-radius: var(--radius);
  color: var(--stone);
  font-family: var(--mono);
  font-size: .7rem;
  letter-spacing: .16em;
  cursor: pointer;
  transition: border-color .22s var(--ease), color .22s var(--ease), background-color .22s var(--ease);
}
.totop::before { content: "↑"; font-size: .8rem; line-height: 1; }
.totop:hover {
  border-color: var(--cinnabar);
  background: rgba(196, 61, 43, .18);
  color: var(--paper);
}

/* 17. 滚动显现 ----------------------------------------------- */
html.js .reveal { opacity: 0; transform: translateY(16px); }
html.js .reveal.is-visible {
  opacity: 1;
  transform: none;
  transition: opacity .6s var(--ease), transform .6s var(--ease);
}

/* 18. 响应式 ------------------------------------------------- */
@media (max-width: 1080px) {
  .grid--rail { grid-template-columns: minmax(0, 1fr); }
  .rail { position: static; }
  .colophon__grid { grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr) minmax(0, 1fr); }
  .colophon__brand { grid-column: 1 / -1; }
}

@media (max-width: 900px) {
  .grid--split,
  .grid--split-rev { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 860px) {
  html.js .nav-toggle { display: inline-flex; }
  .nav-toggle { display: inline-flex; }
  .masthead__cta {
    padding: .5rem .7rem;
    font-size: .74rem;
    letter-spacing: .02em;
  }
  .masthead__nav { border-top: 0; }
  html.js .masthead__nav {
    max-height: 0;
    overflow: hidden;
    visibility: hidden;
    background: var(--deep);
    transition: max-height .34s var(--ease), visibility .34s var(--ease);
  }
  html.js .masthead__nav[data-open="true"] {
    max-height: calc(100vh - 5rem);
    overflow-y: auto;
    visibility: visible;
  }
  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: .35rem 0;
  }
  .nav-list li {
    width: 100%;
    border-bottom: 1px solid rgba(247, 242, 232, .12);
  }
  .nav-list li:last-child { border-bottom: 0; }
  .nav-list__link {
    display: block;
    width: 100%;
    padding: .9rem .2rem;
    color: var(--stone);
    font-size: 1rem;
  }
  .nav-list__link::after { display: none; }
  .nav-list__link[aria-current="page"] {
    color: var(--sand);
    padding-left: .85rem;
    border-left: 3px solid var(--cinnabar);
  }
  .nav-list__link[aria-current="page"]::before { display: none; }

  .colophon__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .colophon__brand { grid-column: 1 / -1; }
  .colophon__base { justify-content: flex-start; }
}

@media (max-width: 620px) {
  .masthead__micro { display: none; }
  .masthead__plate { padding-top: 1rem; }
  .masthead__title { letter-spacing: .02em; }
  .masthead__tagline { letter-spacing: .2em; }
  .colophon__grid { grid-template-columns: minmax(0, 1fr); }
  .grid--cards { grid-template-columns: minmax(0, 1fr); }
  .figure--soft .figure__frame { border-radius: 70px 4px 70px 4px; }
}

/* 19. 降低动效偏好 ------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  html.js .reveal { opacity: 1 !important; transform: none !important; }
  .card:hover, .btn:hover { transform: none !important; }
}