:root {
  --paper: #fcfafc;
  --paper-deep: #f5f0f7;
  --mist: #eee7f2;
  --mist-strong: #ded2e6;
  --ink: #2e2438;
  --ink-soft: #5b5262;
  --plum: #342642;
  --plum-deep: #24182f;
  --gold: #bd8e32;
  --gold-light: #ddc78e;
  --line: rgba(72, 52, 84, 0.14);
  --shadow: 0 28px 80px rgba(46, 34, 57, 0.15);
  --shell: 1410px;
  --serif: "Songti SC", "STSong", "Noto Serif CJK SC", "Source Han Serif SC", "SimSun", serif;
  --sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  min-width: 320px;
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    radial-gradient(circle at 18% 12%, rgba(205, 189, 217, 0.13), transparent 30%),
    radial-gradient(circle at 84% 54%, rgba(235, 220, 190, 0.11), transparent 28%);
  content: "";
  pointer-events: none;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

:focus-visible {
  outline: 3px solid rgba(189, 142, 50, 0.62);
  outline-offset: 4px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 10px 16px;
  color: #fff;
  background: var(--plum-deep);
  border-radius: 8px;
  transform: translateY(-160%);
  transition: transform 180ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.shell {
  width: min(calc(100% - 96px), var(--shell));
  margin-inline: auto;
}

.site-header {
  position: relative;
  z-index: 20;
  min-height: 94px;
  background: rgba(252, 250, 252, 0.92);
  border-bottom: 1px solid rgba(74, 53, 86, 0.07);
}

.site-header--overlay {
  position: absolute;
  inset: 0 0 auto;
  background: transparent;
  border-bottom: 0;
}

.header-inner {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) auto minmax(220px, 1fr);
  align-items: center;
  min-height: 94px;
  gap: 28px;
}

.brand {
  justify-self: start;
  font-family: var(--serif);
  font-size: clamp(1.65rem, 2vw, 2.15rem);
  font-weight: 600;
  letter-spacing: 0.04em;
  line-height: 1.1;
}

.primary-navigation {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(30px, 4.5vw, 70px);
  font-family: var(--serif);
  font-size: 1.08rem;
  white-space: nowrap;
}

.primary-navigation > a:not(.nav-mobile-cta) {
  position: relative;
  padding: 13px 0;
  transition: color 180ms ease;
}

.primary-navigation > a:not(.nav-mobile-cta)::after {
  position: absolute;
  right: 50%;
  bottom: 4px;
  left: 50%;
  height: 1px;
  background: var(--gold);
  content: "";
  transition: right 180ms ease, left 180ms ease;
}

.primary-navigation > a:hover,
.primary-navigation > a.is-current {
  color: var(--plum-deep);
}

.primary-navigation > a:hover::after,
.primary-navigation > a.is-current::after {
  right: 0;
  left: 0;
}

.nav-mobile-cta,
.menu-button {
  display: none;
}

.button {
  display: inline-flex;
  min-height: 58px;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 14px 30px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-family: var(--serif);
  font-size: 1.12rem;
  letter-spacing: 0.03em;
  line-height: 1.2;
  transition: transform 180ms ease, box-shadow 180ms ease, background-color 180ms ease, border-color 180ms ease;
}

.button svg,
.book-arrow svg,
.menu-button svg {
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.button:hover {
  transform: translateY(-2px);
}

.button--header {
  justify-self: end;
  min-height: 52px;
  padding-inline: 30px;
  color: #fff;
  background: var(--plum);
  border-radius: 14px;
  font-size: 1rem;
  box-shadow: 0 12px 30px rgba(46, 34, 57, 0.12);
}

.button--header:hover,
.button--primary:hover {
  background: var(--plum-deep);
  box-shadow: 0 15px 34px rgba(46, 34, 57, 0.2);
}

.button--primary {
  min-width: 260px;
  color: #fff;
  background: var(--plum);
  box-shadow: 0 15px 38px rgba(46, 34, 57, 0.16);
}

.button--secondary {
  min-width: 235px;
  color: var(--ink);
  background: rgba(252, 250, 252, 0.65);
  border-color: var(--gold-light);
}

.button--secondary:hover {
  background: #fff;
  border-color: var(--gold);
}

.hero {
  position: relative;
  display: flex;
  min-height: clamp(690px, 82vh, 850px);
  align-items: center;
  overflow: hidden;
  isolation: isolate;
  background:
    radial-gradient(circle at 20% 36%, rgba(218, 206, 228, 0.18), transparent 34%),
    var(--paper);
}

.hero-art {
  position: absolute;
  z-index: -1;
  top: 72px;
  right: -5%;
  width: 72%;
  height: calc(100% - 72px);
  object-fit: cover;
  object-position: center center;
  -webkit-mask-image: linear-gradient(to right, transparent 0%, #000 17%, #000 100%);
  mask-image: linear-gradient(to right, transparent 0%, #000 17%, #000 100%);
}

.hero-inner {
  display: flex;
  align-items: center;
  padding-top: 104px;
}

.hero-copy {
  width: min(50%, 690px);
  padding-block: 72px;
}

.hero h1,
.quiet-reading h2,
.method-heading h2,
.shared-copy h2,
.online-copy h2,
.entry-copy h1,
.content-page h1 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 500;
  letter-spacing: 0.04em;
  line-height: 1.24;
}

.hero h1 {
  font-size: clamp(4.5rem, 7vw, 7rem);
  line-height: 1.08;
}

.hero-lead {
  margin: 26px 0 16px;
  font-family: var(--serif);
  font-size: clamp(1.7rem, 2.55vw, 2.55rem);
  letter-spacing: 0.035em;
  line-height: 1.45;
}

.hero-support {
  max-width: 700px;
  margin: 0;
  color: var(--ink-soft);
  font-family: var(--serif);
  font-size: clamp(1.05rem, 1.4vw, 1.3rem);
  letter-spacing: 0.025em;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 44px;
}

.page-cue {
  position: absolute;
  right: 8.5%;
  bottom: 24px;
  color: var(--gold);
}

.page-cue svg {
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.5;
}

.page-cue:hover svg {
  transform: translateY(4px);
}

.quiet-reading {
  position: relative;
  min-height: 360px;
  overflow: hidden;
  background:
    radial-gradient(ellipse at 82% 90%, rgba(222, 211, 231, 0.52), transparent 34%),
    radial-gradient(circle at 76% 44%, rgba(229, 208, 164, 0.26), transparent 10%),
    linear-gradient(180deg, #fff 0%, #faf7fb 100%);
}

.quiet-reading::after {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 58%;
  background: url("/assets/reading-circle.png") 55% 0 / 1300px auto no-repeat;
  content: "";
  opacity: 0.14;
  clip-path: inset(0 0 28% 0);
  filter: blur(6px);
  -webkit-mask-image: linear-gradient(to right, transparent, #000 38%, #000 100%);
  mask-image: linear-gradient(to right, transparent, #000 38%, #000 100%);
}

.quiet-inner {
  position: relative;
  z-index: 1;
  padding-block: 74px 82px;
}

.gold-line {
  display: block;
  width: 46px;
  height: 1px;
  margin-bottom: 25px;
  background: var(--gold);
}

.quiet-reading h2 {
  font-size: clamp(2.25rem, 3.5vw, 3.7rem);
}

.quiet-reading p {
  margin: 18px 0 0;
  color: var(--ink-soft);
  font-family: var(--serif);
  font-size: clamp(1.08rem, 1.4vw, 1.3rem);
  line-height: 1.7;
}

.reading-method {
  position: relative;
  padding: 92px 0 120px;
  overflow: hidden;
  background:
    radial-gradient(circle at 84% 8%, rgba(218, 190, 131, 0.2), transparent 12%),
    radial-gradient(ellipse at 86% 17%, rgba(210, 196, 221, 0.38), transparent 31%),
    var(--paper-deep);
}

.method-heading h2 {
  font-size: clamp(2.8rem, 4.8vw, 4.75rem);
}

.method-heading p {
  margin: 10px 0 0;
  color: var(--ink-soft);
  font-family: var(--serif);
  font-size: clamp(1.05rem, 1.35vw, 1.25rem);
}

.book-wrap {
  margin-top: 54px;
}

.reading-book {
  position: relative;
  max-width: 1260px;
  margin-inline: auto;
  padding: 0 66px 46px;
  perspective: 1800px;
}

.book-cover {
  position: absolute;
  z-index: 0;
  inset: 14px 48px 38px;
  background: linear-gradient(90deg, #826e68 0%, #b49870 4%, #705a50 49.7%, #9d815d 50%, #7c665d 96%, #a89072 100%);
  border-radius: 7px 7px 24px 24px;
  box-shadow: var(--shadow);
}

.book-ribbon {
  position: absolute;
  z-index: 5;
  top: 0;
  left: 50%;
  width: 34px;
  height: 106px;
  background: linear-gradient(90deg, #b7872e, #d1aa57 54%, #a77822);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 50% 80%, 0 100%);
  filter: drop-shadow(0 8px 5px rgba(68, 47, 25, 0.16));
  transform: translateX(-50%);
}

.book-spread {
  position: relative;
  z-index: 1;
  display: grid;
  min-height: 500px;
  grid-template-columns: 1fr 1fr;
  overflow: hidden;
  background: #fffdfb;
  border: 1px solid rgba(117, 91, 75, 0.18);
  border-radius: 5px 5px 20px 20px;
  box-shadow:
    inset 0 -12px 20px rgba(103, 78, 60, 0.06),
    0 24px 55px rgba(54, 39, 63, 0.15);
  transform-style: preserve-3d;
}

.book-spread::before {
  position: absolute;
  z-index: 4;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 34px;
  background: linear-gradient(90deg, transparent, rgba(79, 53, 51, 0.08), rgba(255, 255, 255, 0.7), transparent);
  content: "";
  pointer-events: none;
  transform: translateX(-50%);
}

.book-page {
  position: relative;
  min-width: 0;
  padding: 78px 78px 58px;
  overflow: hidden;
  background:
    radial-gradient(ellipse at 52% 110%, rgba(210, 197, 222, 0.32), transparent 38%),
    linear-gradient(108deg, rgba(249, 246, 241, 0.7), rgba(255, 254, 252, 0.96));
}

.book-page--left {
  border-right: 1px solid rgba(91, 68, 73, 0.1);
  box-shadow: inset -16px 0 24px rgba(75, 50, 50, 0.035);
}

.book-page--right {
  border-left: 1px solid rgba(255, 255, 255, 0.78);
  box-shadow: inset 16px 0 24px rgba(75, 50, 50, 0.035);
}

.book-page::after {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 205px;
  background: url("/assets/reading-circle.png") 50% 0 / 1100px auto no-repeat;
  content: "";
  opacity: 0.13;
  -webkit-mask-image: linear-gradient(to top, #000 0%, #000 56%, transparent 100%);
  mask-image: linear-gradient(to top, #000 0%, #000 56%, transparent 100%);
}

.book-chapter {
  margin: 0 0 12px;
  color: var(--gold);
  font-family: var(--serif);
  font-size: 1.1rem;
  letter-spacing: 0.06em;
}

.book-rule {
  display: block;
  width: 150px;
  height: 1px;
  margin-bottom: 24px;
  background: linear-gradient(90deg, var(--gold), rgba(189, 142, 50, 0.2));
}

.book-page h3 {
  position: relative;
  margin: 0;
  padding-left: 22px;
  font-family: var(--serif);
  font-size: clamp(2.15rem, 3.2vw, 3.25rem);
  font-weight: 500;
  letter-spacing: 0.09em;
  line-height: 1.2;
}

.book-page h3::before {
  position: absolute;
  top: 8%;
  bottom: 8%;
  left: 0;
  width: 1px;
  background: currentColor;
  content: "";
}

.book-copy {
  position: relative;
  z-index: 1;
  max-width: 340px;
  margin: 25px 0 0;
  color: var(--ink-soft);
  font-family: var(--serif);
  font-size: clamp(1.02rem, 1.3vw, 1.22rem);
  line-height: 1.85;
}

.book-page-link {
  position: relative;
  z-index: 2;
  display: inline-flex;
  margin-top: 28px;
  padding-bottom: 3px;
  color: var(--plum);
  border-bottom: 1px solid var(--gold);
  font-family: var(--serif);
  font-size: 1.05rem;
}

.book-number {
  position: absolute;
  z-index: 1;
  bottom: 35px;
  left: 78px;
  color: var(--gold);
  font-family: var(--serif);
  font-size: 1.2rem;
}

.page-turn-sheet {
  position: absolute;
  z-index: 6;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  visibility: hidden;
  background:
    radial-gradient(ellipse at 0 50%, rgba(97, 73, 79, 0.12), transparent 26%),
    linear-gradient(100deg, #f1ebe7, #fffefa 38%, #f7f1ec);
  border-left: 1px solid rgba(91, 68, 73, 0.1);
  box-shadow: -20px 8px 35px rgba(44, 31, 52, 0.18);
  transform-origin: left center;
  backface-visibility: hidden;
}

.reading-book.is-turning-forward .page-turn-sheet {
  visibility: visible;
  animation: turn-forward 560ms cubic-bezier(0.55, 0.08, 0.35, 0.98) both;
}

.reading-book.is-turning-backward .page-turn-sheet {
  right: auto;
  left: 0;
  visibility: visible;
  transform-origin: right center;
  animation: turn-backward 560ms cubic-bezier(0.55, 0.08, 0.35, 0.98) both;
}

@keyframes turn-forward {
  0% { transform: rotateY(0deg); }
  100% { transform: rotateY(-180deg); }
}

@keyframes turn-backward {
  0% { transform: rotateY(0deg); }
  100% { transform: rotateY(180deg); }
}

.book-arrow {
  position: absolute;
  z-index: 9;
  top: calc(50% - 24px);
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  padding: 0;
  color: var(--plum);
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(62, 43, 74, 0.14);
  border-radius: 50%;
  box-shadow: 0 10px 28px rgba(47, 34, 58, 0.12);
  cursor: pointer;
  transition: color 180ms ease, background-color 180ms ease, transform 180ms ease;
}

.book-arrow:hover:not(:disabled) {
  color: #fff;
  background: var(--plum);
  transform: scale(1.04);
}

.book-arrow:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.book-arrow--previous {
  left: 0;
}

.book-arrow--next {
  right: 0;
}

.book-status {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  margin: 0;
  color: var(--ink-soft);
  font-family: var(--serif);
  font-size: 0.94rem;
  text-align: center;
}

.shared-page {
  background: linear-gradient(180deg, #fff 0%, #fbf8fc 100%);
}

.shared-grid {
  display: grid;
  min-height: 650px;
  grid-template-columns: minmax(360px, 0.72fr) minmax(560px, 1.28fr);
  align-items: center;
  gap: 20px;
}

.shared-copy {
  position: relative;
  z-index: 1;
  padding: 80px 0;
}

.shared-copy h2,
.online-copy h2 {
  font-size: clamp(2.6rem, 4.05vw, 4rem);
}

.shared-copy p,
.online-copy p {
  margin: 24px 0 0;
  color: var(--ink-soft);
  font-family: var(--serif);
  font-size: clamp(1.05rem, 1.35vw, 1.24rem);
  line-height: 1.9;
}

.leaf-stroke {
  margin-top: 42px;
  fill: rgba(189, 142, 50, 0.15);
  stroke: var(--gold);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.2;
}

.shared-art {
  align-self: stretch;
  margin: 0;
  overflow: hidden;
}

.shared-art img {
  width: 115%;
  max-width: none;
  height: 100%;
  object-fit: cover;
  object-position: 46% center;
  -webkit-mask-image: linear-gradient(to right, transparent 0%, #000 18%, #000 100%);
  mask-image: linear-gradient(to right, transparent 0%, #000 18%, #000 100%);
}

.online-promo {
  overflow: hidden;
  background:
    radial-gradient(circle at 18% 42%, rgba(209, 194, 220, 0.2), transparent 30%),
    var(--paper-deep);
}

.online-grid {
  display: grid;
  min-height: 570px;
  grid-template-columns: minmax(390px, 0.78fr) minmax(550px, 1.22fr);
  align-items: center;
  gap: 20px;
}

.online-copy {
  position: relative;
  z-index: 2;
  padding: 80px 0;
}

.online-copy .button {
  margin-top: 30px;
}

.online-art {
  align-self: stretch;
  margin: 0;
}

.online-art img {
  width: 116%;
  max-width: none;
  height: 100%;
  object-fit: cover;
  object-position: 67% 53%;
  -webkit-mask-image: linear-gradient(to right, transparent 0%, #000 16%, #000 100%);
  mask-image: linear-gradient(to right, transparent 0%, #000 16%, #000 100%);
}

.site-footer {
  position: relative;
  overflow: hidden;
  background: #fff;
}

.site-footer::after {
  position: absolute;
  right: 64%;
  bottom: -70px;
  width: 520px;
  height: 110px;
  background: rgba(218, 207, 228, 0.32);
  border-radius: 50% 50% 0 0;
  content: "";
  filter: blur(12px);
}

.footer-inner {
  position: relative;
  z-index: 1;
  display: flex;
  min-height: 128px;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.brand--footer {
  font-size: 1.75rem;
}

.footer-navigation {
  display: flex;
  align-items: center;
  gap: 32px;
  color: var(--ink-soft);
  font-family: var(--serif);
  font-size: 1rem;
}

.footer-navigation span {
  width: 1px;
  height: 20px;
  background: rgba(66, 47, 78, 0.25);
}

.footer-navigation a:hover {
  color: var(--plum-deep);
}

/* 线上读书会入口页 */
.entry-main {
  overflow: hidden;
}

.entry-hero {
  position: relative;
  min-height: 620px;
  overflow: hidden;
  background:
    radial-gradient(circle at 18% 32%, rgba(214, 199, 224, 0.18), transparent 34%),
    var(--paper);
}

.entry-art {
  position: absolute;
  top: -8%;
  right: -5%;
  width: 67%;
  height: 112%;
  object-fit: cover;
  object-position: center;
  -webkit-mask-image: linear-gradient(to right, transparent 0%, #000 22%, #000 100%);
  mask-image: linear-gradient(to right, transparent 0%, #000 22%, #000 100%);
}

.entry-grid {
  position: relative;
  z-index: 2;
  display: flex;
  min-height: 620px;
  align-items: center;
}

.entry-copy {
  width: min(52%, 690px);
  padding: 72px 0;
}

.entry-copy h1 {
  font-size: clamp(4rem, 6vw, 6.5rem);
}

.entry-copy .entry-lead {
  margin: 22px 0 0;
  font-family: var(--serif);
  font-size: clamp(1.65rem, 2.3vw, 2.35rem);
  line-height: 1.5;
}

.entry-copy .entry-support {
  max-width: 600px;
  margin: 20px 0 0;
  color: var(--ink-soft);
  font-family: var(--serif);
  font-size: 1.14rem;
  line-height: 1.85;
}

.entry-panel-section {
  padding: 88px 0 112px;
  background: var(--paper-deep);
}

.entry-panel {
  position: relative;
  display: grid;
  max-width: 1120px;
  grid-template-columns: 0.92fr 1.08fr;
  margin-inline: auto;
  overflow: hidden;
  background: rgba(255, 254, 252, 0.93);
  border: 1px solid rgba(91, 68, 73, 0.12);
  border-radius: 4px 4px 26px 26px;
  box-shadow: var(--shadow);
}

.entry-panel::before {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 46%;
  width: 32px;
  background: linear-gradient(90deg, transparent, rgba(58, 41, 63, 0.07), rgba(255, 255, 255, 0.7), transparent);
  content: "";
  transform: translateX(-50%);
}

.entry-panel-intro,
.entry-steps {
  position: relative;
  padding: 64px;
}

.entry-panel-intro {
  background: radial-gradient(ellipse at 30% 100%, rgba(209, 195, 220, 0.3), transparent 48%);
}

.entry-panel h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2.25rem, 3.8vw, 3.5rem);
  font-weight: 500;
  line-height: 1.35;
}

.entry-panel-intro p {
  margin: 24px 0 0;
  color: var(--ink-soft);
  font-family: var(--serif);
  font-size: 1.08rem;
  line-height: 1.9;
}

.entry-panel-intro .button {
  margin-top: 34px;
}

.entry-steps {
  background: linear-gradient(120deg, rgba(251, 248, 243, 0.54), rgba(255, 255, 255, 0.86));
}

.entry-steps h2 {
  font-size: 2rem;
}

.step-list {
  padding: 0;
  margin: 30px 0 0;
  list-style: none;
  counter-reset: entry-step;
}

.step-list li {
  position: relative;
  min-height: 72px;
  padding: 0 0 26px 58px;
  color: var(--ink-soft);
  counter-increment: entry-step;
}

.step-list li::before {
  position: absolute;
  top: 0;
  left: 0;
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  color: var(--gold);
  border: 1px solid var(--gold-light);
  border-radius: 50%;
  content: counter(entry-step, decimal-leading-zero);
  font-family: var(--serif);
  font-size: 0.88rem;
}

.step-list li:not(:last-child)::after {
  position: absolute;
  top: 40px;
  bottom: 0;
  left: 19px;
  width: 1px;
  background: linear-gradient(var(--gold-light), transparent);
  content: "";
}

.step-list strong {
  display: block;
  margin-bottom: 4px;
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1.2rem;
  font-weight: 500;
}

.entry-note {
  margin: 22px 0 0;
  padding-top: 20px;
  color: var(--ink-soft);
  border-top: 1px solid var(--line);
  font-size: 0.94rem;
}

/* 简洁信息页 */
.content-main {
  min-height: calc(100vh - 222px);
  background:
    radial-gradient(circle at 78% 14%, rgba(226, 205, 162, 0.2), transparent 11%),
    radial-gradient(ellipse at 78% 21%, rgba(215, 202, 225, 0.34), transparent 26%),
    var(--paper-deep);
}

.content-page {
  max-width: 880px;
  padding-block: 92px 120px;
}

.content-page h1 {
  font-size: clamp(3.1rem, 5vw, 5rem);
}

.content-lead {
  margin: 18px 0 0;
  color: var(--ink-soft);
  font-family: var(--serif);
  font-size: clamp(1.22rem, 1.8vw, 1.55rem);
}

.content-sheet {
  margin-top: 52px;
  padding: 54px 62px;
  background: rgba(255, 254, 252, 0.94);
  border: 1px solid rgba(91, 68, 73, 0.12);
  border-radius: 4px 4px 22px 22px;
  box-shadow: 0 24px 62px rgba(46, 34, 57, 0.11);
}

.content-sheet section + section {
  padding-top: 30px;
  margin-top: 30px;
  border-top: 1px solid var(--line);
}

.content-sheet h2 {
  margin: 0 0 12px;
  font-family: var(--serif);
  font-size: 1.6rem;
  font-weight: 500;
}

.content-sheet p,
.content-sheet li {
  color: var(--ink-soft);
}

.content-sheet p {
  margin: 0;
}

.content-sheet ul,
.content-sheet ol {
  margin: 12px 0 0;
  padding-left: 1.4em;
}

.content-sheet a:not(.button),
.text-link {
  color: var(--plum);
  border-bottom: 1px solid var(--gold-light);
}

.content-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 36px;
}

@media (max-width: 1180px) {
  .shell {
    width: min(calc(100% - 56px), var(--shell));
  }

  .header-inner {
    grid-template-columns: auto 1fr auto;
  }

  .primary-navigation {
    gap: 28px;
    font-size: 1rem;
  }

  .button--header {
    min-height: 48px;
    padding-inline: 22px;
  }

  .hero-art {
    right: -12%;
    width: 79%;
  }

  .hero-copy {
    width: 55%;
  }

  .book-page {
    padding-inline: 54px;
  }

  .book-number {
    left: 54px;
  }

  .shared-grid,
  .online-grid {
    grid-template-columns: minmax(340px, 0.82fr) minmax(470px, 1.18fr);
  }
}

@media (min-width: 921px) {
  .hero-lead,
  .hero-support,
  .shared-copy h2 {
    white-space: nowrap;
  }
}

@media (max-width: 920px) {
  .header-inner {
    grid-template-columns: 1fr auto;
  }

  .menu-button {
    display: grid;
    width: 46px;
    height: 46px;
    place-items: center;
    justify-self: end;
    padding: 0;
    color: var(--ink);
    background: rgba(255, 255, 255, 0.74);
    border: 1px solid var(--line);
    border-radius: 50%;
    cursor: pointer;
  }

  .button--header {
    display: none;
  }

  .primary-navigation {
    position: absolute;
    top: 82px;
    right: 28px;
    left: 28px;
    display: none;
    align-items: stretch;
    justify-content: stretch;
    padding: 18px;
    background: rgba(255, 254, 255, 0.98);
    border: 1px solid var(--line);
    border-radius: 18px;
    box-shadow: 0 24px 58px rgba(44, 31, 52, 0.16);
  }

  .primary-navigation.is-open {
    display: grid;
  }

  .primary-navigation > a:not(.nav-mobile-cta) {
    padding: 12px 10px;
  }

  .primary-navigation > a:not(.nav-mobile-cta)::after {
    display: none;
  }

  .nav-mobile-cta {
    display: flex;
    width: 100%;
    min-height: 46px;
    align-items: center;
    justify-content: center;
    margin-top: 8px;
    color: #fff;
    background: var(--plum);
    border-radius: 12px;
  }

  .hero-art {
    right: -22%;
    width: 90%;
    opacity: 0.92;
  }

  .hero-copy {
    width: 62%;
  }

  .hero h1 {
    font-size: clamp(4rem, 10vw, 5.8rem);
  }

  .hero-lead {
    font-size: clamp(1.45rem, 3.1vw, 2rem);
  }

  .shared-grid,
  .online-grid {
    grid-template-columns: 1fr;
  }

  .shared-grid {
    padding-top: 30px;
  }

  .shared-copy,
  .online-copy {
    padding: 70px 0 10px;
  }

  .shared-art,
  .online-art {
    height: 500px;
  }

  .shared-art img,
  .online-art img {
    width: 100%;
    -webkit-mask-image: linear-gradient(to bottom, transparent 0%, #000 14%, #000 100%);
    mask-image: linear-gradient(to bottom, transparent 0%, #000 14%, #000 100%);
  }

  .online-copy {
    padding-top: 76px;
  }

  .online-art {
    height: 420px;
  }

  .entry-art {
    right: -24%;
    width: 88%;
  }

  .entry-copy {
    width: 60%;
  }

  .entry-panel {
    grid-template-columns: 1fr;
  }

  .entry-panel::before {
    display: none;
  }

  .entry-panel-intro,
  .entry-steps {
    padding: 52px;
  }
}

@media (max-width: 719px) {
  html {
    scroll-padding-top: 76px;
  }

  .shell {
    width: min(calc(100% - 36px), var(--shell));
  }

  .site-header {
    min-height: 78px;
  }

  .header-inner {
    min-height: 78px;
  }

  .brand {
    font-size: 1.55rem;
  }

  .primary-navigation {
    top: 70px;
    right: 18px;
    left: 18px;
  }

  .hero {
    min-height: 790px;
    align-items: flex-start;
  }

  .hero-inner {
    padding-top: 114px;
  }

  .hero-copy {
    width: 100%;
    padding: 38px 0 340px;
  }

  .hero h1 {
    font-size: clamp(3.35rem, 15vw, 4.65rem);
    letter-spacing: 0.02em;
  }

  .hero-lead {
    max-width: 520px;
    margin-top: 20px;
    font-size: clamp(1.34rem, 6vw, 1.8rem);
  }

  .hero-support {
    max-width: 520px;
    font-size: 1rem;
    line-height: 1.85;
  }

  .hero-actions {
    gap: 12px;
    margin-top: 28px;
  }

  .hero-actions .button {
    width: 100%;
    min-width: 0;
    min-height: 54px;
  }

  .hero-art {
    top: auto;
    right: -25%;
    bottom: -6%;
    width: 135%;
    height: 52%;
    object-fit: cover;
    object-position: 68% 52%;
    opacity: 1;
    -webkit-mask-image: linear-gradient(to bottom, transparent 0%, #000 18%, #000 100%);
    mask-image: linear-gradient(to bottom, transparent 0%, #000 18%, #000 100%);
  }

  .page-cue {
    right: 24px;
    bottom: 10px;
    transform: scale(0.82);
  }

  .quiet-reading {
    min-height: 0;
  }

  .quiet-inner {
    padding-block: 64px 72px;
  }

  .quiet-reading h2 {
    font-size: clamp(2.1rem, 9vw, 3rem);
  }

  .quiet-reading br,
  .shared-copy br,
  .online-copy br {
    display: none;
  }

  .reading-method {
    padding-block: 72px 88px;
  }

  .method-heading h2 {
    font-size: clamp(2.65rem, 11vw, 3.5rem);
  }

  .book-wrap {
    margin-top: 36px;
  }

  .reading-book {
    padding: 0 0 58px;
  }

  .book-cover {
    inset: 10px -7px 48px;
  }

  .book-ribbon {
    left: auto;
    right: 18px;
    width: 28px;
    height: 82px;
    transform: none;
  }

  .book-spread {
    min-height: 460px;
    grid-template-columns: 1fr;
  }

  .book-spread::before {
    display: none;
  }

  .book-page {
    padding: 64px 38px 58px;
  }

  .book-page--left {
    border-right: 0;
    box-shadow: inset 0 -16px 24px rgba(75, 50, 50, 0.035);
  }

  .book-page--right {
    display: none;
  }

  .book-page h3 {
    font-size: clamp(2.45rem, 12vw, 3.4rem);
  }

  .book-copy {
    font-size: 1.08rem;
  }

  .book-number {
    bottom: 28px;
    left: 38px;
  }

  .page-turn-sheet {
    width: 100%;
  }

  .book-arrow {
    top: auto;
    bottom: 0;
  }

  .book-arrow--previous {
    left: 0;
  }

  .book-arrow--next {
    right: 0;
  }

  .book-status {
    bottom: 11px;
    font-size: 0.84rem;
  }

  .shared-copy h2,
  .online-copy h2 {
    font-size: clamp(2.55rem, 11vw, 3.5rem);
  }

  .shared-copy {
    padding-top: 64px;
  }

  .shared-art {
    height: 390px;
  }

  .shared-art img {
    width: 118%;
    object-position: 52% center;
  }

  .online-art {
    height: 330px;
  }

  .online-copy .button {
    width: 100%;
    min-width: 0;
  }

  .footer-inner {
    min-height: 164px;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 24px;
    padding-block: 32px;
  }

  .footer-navigation {
    width: 100%;
    justify-content: space-between;
    gap: 10px;
    font-size: 0.94rem;
  }

  .footer-navigation span {
    height: 16px;
  }

  .entry-hero,
  .entry-grid {
    min-height: 700px;
  }

  .entry-grid {
    align-items: flex-start;
  }

  .entry-copy {
    width: 100%;
    padding: 72px 0 330px;
  }

  .entry-copy h1 {
    font-size: clamp(3.4rem, 14vw, 4.8rem);
  }

  .entry-copy .entry-lead {
    font-size: 1.45rem;
  }

  .entry-art {
    top: auto;
    right: -24%;
    bottom: -5%;
    width: 135%;
    height: 52%;
    object-position: 66% center;
    -webkit-mask-image: linear-gradient(to bottom, transparent 0%, #000 18%, #000 100%);
    mask-image: linear-gradient(to bottom, transparent 0%, #000 18%, #000 100%);
  }

  .entry-panel-section {
    padding-block: 62px 80px;
  }

  .entry-panel-intro,
  .entry-steps {
    padding: 42px 28px;
  }

  .entry-panel-intro .button {
    width: 100%;
    min-width: 0;
  }

  .content-page {
    padding-block: 68px 86px;
  }

  .content-page h1 {
    font-size: clamp(2.9rem, 13vw, 4rem);
  }

  .content-sheet {
    margin-top: 38px;
    padding: 38px 26px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .page-turn-sheet {
    display: none;
  }
}

[hidden] {
  display: none !important;
}