/* Project 02: scoped additions on top of the shared static case-page system. */
.case-zhilengjie {
  --ip-acid: #ddf36a;
  --ip-paper: #f7f6f2;
  --ip-ink: #1c1d1f;
  --ip-muted: #72786f;
}

.ip-opening {
  padding-top: 38px;
  padding-bottom: 76px;
}

.ip-opening-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(330px, .78fr);
  gap: clamp(36px, 5.6vw, 82px);
  align-items: center;
}

.ip-opening-copy,
.ip-hero-visual,
.ip-opening-copy > * {
  min-width: 0;
}

.ip-opening .case-back-link {
  margin-bottom: 38px;
  font-size: 14px;
}

.ip-opening .case-eyebrow {
  margin: 0 0 20px;
  color: #808842;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: .12em;
}

.ip-opening h1 {
  max-width: 840px;
  font-size: clamp(50px, 5.2vw, 74px);
  line-height: 1.08;
  letter-spacing: -.075em;
  text-wrap: balance;
}

.case-title-line {
  display: block;
}

.keep-word {
  display: inline-block;
  white-space: nowrap;
}

.case-zhilengjie main h2,
.case-zhilengjie main h3 {
  text-wrap: balance;
}

.case-zhilengjie main p,
.case-zhilengjie main figcaption,
.case-zhilengjie .ip-case-meta dd {
  text-wrap: pretty;
}

.ip-opening .case-official-title {
  margin: 24px 0 0;
  color: #50564f;
  font-size: clamp(18px, 1.65vw, 23px);
  font-weight: 700;
  line-height: 1.55;
  text-wrap: balance;
}

.ip-case-meta {
  grid-template-columns: 1.35fr .8fr 1fr;
  gap: 18px 22px;
  margin-top: 28px;
}

.ip-case-meta dt {
  margin-bottom: 9px;
  font-size: 14px;
}

.ip-case-meta dd {
  font-size: 16px;
  font-weight: 650;
  line-height: 1.65;
}

.ip-opening .case-thesis {
  max-width: 760px;
  margin-top: 24px;
  color: #4f554e;
  font-size: 16px;
  line-height: 1.9;
}

.ip-hero-visual {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, .82fr);
  gap: 14px;
  align-items: center;
  padding: 16px 22px 36px 0;
}

.ip-hero-frame {
  position: relative;
  min-width: 0;
  margin: 0;
}

.ip-hero-frame .case-photo-trigger {
  overflow: hidden;
  border-radius: 2px;
  background: #232624;
}

.ip-hero-frame img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 560px;
  object-fit: contain;
  object-position: center;
  background: #232624;
}

.ip-hero-frame-secondary {
  margin-top: 88px;
}

.ip-hero-frame figcaption {
  margin-top: 8px;
  color: #697067;
  font-size: 11px;
  line-height: 1.6;
}

.ip-hero-stamp {
  position: absolute;
  right: -5px;
  bottom: 0;
  z-index: 1;
  padding: 12px 14px;
  background: var(--ip-ink);
  color: var(--ip-acid);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .12em;
  line-height: 1.55;
}

.ip-section {
  padding-top: clamp(82px, 9vw, 132px);
  padding-bottom: clamp(82px, 9vw, 132px);
}

.ip-section .case-section-heading {
  max-width: 970px;
  margin-bottom: 44px;
}

.ip-section .case-section-heading h2 {
  max-width: 900px;
  font-size: clamp(38px, 5vw, 66px);
}

.ip-section .case-section-number {
  color: #899344;
  font-size: 17px;
  font-weight: 780;
  letter-spacing: .08em;
}

.ip-section .case-heading-note {
  max-width: 760px;
  margin-top: 18px;
  color: #62685f;
  font-size: 16px;
  line-height: 1.85;
}

.ip-start-grid {
  display: grid;
  grid-template-columns: minmax(0, .94fr) minmax(0, 1.06fr);
  gap: clamp(34px, 5.2vw, 78px);
  align-items: center;
}

.ip-start-copy p {
  margin: 0 0 19px;
  color: #464c45;
  font-size: 16px;
  line-height: 1.95;
}

.ip-start-copy strong {
  color: var(--ip-ink);
  font-weight: 760;
}

.early-live-grid {
  display: grid;
  grid-template-columns: minmax(140px, .8fr) minmax(0, 1.2fr);
  gap: 16px;
  align-items: center;
}

.early-live-card {
  min-width: 0;
  margin: 0;
}

.early-live-card .case-photo-trigger {
  overflow: hidden;
  width: 100%;
  min-height: 190px;
  background: #252724;
}

.early-live-card img {
  display: block;
  width: 100%;
  height: 290px;
  object-fit: contain;
}

.early-connection-card img {
  height: 220px;
}

.early-live-card figcaption {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
  color: #4d534c;
  font-size: 13px;
  font-weight: 650;
}

.early-live-card figcaption span {
  color: #858c79;
  font-size: 10px;
  letter-spacing: .08em;
}

.ip-challenge {
  overflow: hidden;
  background: #1c1d1f;
  color: var(--ip-paper);
}

.ip-challenge .case-section-number,
.ip-system .case-section-number {
  color: var(--ip-acid);
}

.ip-challenge-top {
  position: relative;
  max-width: 990px;
}

.ip-challenge-top h2 {
  position: relative;
  z-index: 1;
  max-width: 880px;
  margin: 0;
  font-size: clamp(42px, 6vw, 78px);
  line-height: 1.12;
  letter-spacing: -.075em;
}

.ip-challenge-index {
  position: absolute;
  top: -60px;
  right: 0;
  margin: 0;
  color: #292b2b;
  font-size: clamp(150px, 24vw, 300px);
  font-weight: 800;
  letter-spacing: -.12em;
  line-height: 1;
  user-select: none;
}

.ip-challenge-lead {
  position: relative;
  z-index: 1;
  max-width: 720px;
  margin: 24px 0 0;
  color: #c9cdc4;
  font-size: 17px;
  line-height: 1.9;
}

.ip-challenge-equation {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 44px minmax(0, 1fr) 54px minmax(0, 1.1fr);
  gap: 18px;
  align-items: center;
  margin-top: 58px;
  padding: 28px 0;
  border-top: 1px solid #454945;
  border-bottom: 1px solid #454945;
}

.ip-challenge-equation > div > span {
  display: block;
  margin-bottom: 12px;
  color: #aeb5a8;
  font-size: 13px;
  letter-spacing: .06em;
}

.ip-challenge-equation strong {
  display: block;
  font-size: clamp(20px, 2.5vw, 32px);
  line-height: 1.45;
  letter-spacing: -.035em;
}

.ip-equation-mark {
  color: var(--ip-acid);
  font-size: 30px;
  text-align: center;
}

.ip-equation-answer strong {
  color: var(--ip-acid);
}

.ip-challenge-question {
  max-width: 920px;
  margin: 28px 0 0 auto;
  color: #f7f6f2;
  font-size: clamp(22px, 2.8vw, 34px);
  font-weight: 700;
  line-height: 1.6;
  letter-spacing: -.035em;
}

.ip-strategy .case-section-heading {
  max-width: 870px;
}

.operation-routes {
  border-top: 1px solid #c7cbc0;
}

.operation-route {
  display: grid;
  grid-template-columns: 174px minmax(0, 1fr);
  gap: 22px;
  align-items: center;
  padding: 24px 0;
  border-bottom: 1px solid #c7cbc0;
}

.route-label {
  margin: 0;
  color: #52584f;
  font-size: 16px;
  font-weight: 760;
  line-height: 1.5;
}

.route-label small {
  display: block;
  margin-top: 4px;
  color: #858b81;
  font-size: 12px;
  font-weight: 500;
}

.route-steps {
  display: grid;
  gap: 22px;
  min-width: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.route-old .route-steps,
.route-b .route-steps {
  --route-columns: 4;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.route-a .route-steps {
  --route-columns: 5;
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.route-node {
  position: relative;
  display: grid;
  min-width: 0;
  min-height: 52px;
  place-items: center;
  padding: 9px 18px;
  border: 1px solid #d4d6cf;
  background: #fff;
  color: #353a34;
  font-size: 15px;
  font-weight: 700;
  text-align: center;
}

.route-node::after {
  position: absolute;
  top: 50%;
  right: -20px;
  z-index: 1;
  color: #7d843d;
  content: "→";
  font-size: 16px;
  font-weight: 800;
  transform: translateY(-50%);
}

.route-node:last-child::after {
  content: none;
}

.route-node-ip {
  border-color: var(--ip-ink);
  background: var(--ip-acid);
  color: var(--ip-ink);
}

.ip-collaboration-note {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  margin: 28px 0 0;
  padding: 20px 22px;
  background: #eff0e9;
}

.ip-collaboration-note .note-mark {
  color: #7b853a;
  font-size: 27px;
  line-height: 1;
}

.ip-collaboration-note p {
  margin: 0;
  color: #4d534b;
  font-size: 15px;
  line-height: 1.85;
}

.ip-collaboration-note strong {
  color: var(--ip-ink);
}

.nurture-methods {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 58px;
}

.nurture-method {
  min-width: 0;
  padding: 22px 22px 24px;
  border-top: 2px solid #a3af51;
  background: #fff;
}

.nurture-method > span,
.system-work-card > span,
.practice-card > span {
  color: #7f893c;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .1em;
}

.nurture-method h3 {
  margin: 16px 0 10px;
  font-size: 21px;
  line-height: 1.5;
}

.nurture-method p {
  margin: 0;
  color: #62685f;
  font-size: 15px;
  line-height: 1.85;
}

.ip-system {
  background: #1c1d1f;
  color: var(--ip-paper);
}

.ip-system .case-heading-note {
  color: #c6cbc2;
}

.system-work-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0 24px;
  margin: 44px 0 58px;
  border-top: 1px solid #454945;
}

.system-work-card {
  min-width: 0;
  padding: 22px 4px 24px 0;
  border-bottom: 1px solid #454945;
}

.system-work-card > span {
  color: var(--ip-acid);
}

.system-work-card h3 {
  margin: 14px 0 8px;
  font-size: 20px;
  line-height: 1.45;
}

.system-work-card p {
  margin: 0;
  color: #c3c8bf;
  font-size: 14px;
  line-height: 1.8;
}

.before-after {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(22px, 3vw, 42px);
}

.live-stage {
  min-width: 0;
  padding: 20px;
  border: 1px solid #454945;
  background: #222424;
}

.live-stage-heading p {
  margin: 0 0 7px;
  color: var(--ip-acid);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .12em;
}

.live-stage-heading h3 {
  margin: 0 0 17px;
  font-size: 21px;
}

.live-stage-images {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  align-items: end;
}

.live-stage-images figure {
  min-width: 0;
  margin: 0;
}

.live-stage-images .case-photo-trigger {
  display: grid;
  width: 100%;
  min-height: 210px;
  place-items: center;
  overflow: hidden;
  background: #111312;
}

.live-stage-images img {
  display: block;
  width: 100%;
  height: 260px;
  object-fit: contain;
}

.live-stage-images figcaption {
  margin-top: 8px;
  color: #d2d6cf;
  font-size: 12px;
  line-height: 1.6;
}

.ip-comparison-note {
  max-width: 900px;
  margin: 20px 0 0 auto;
  color: #bfc5bc;
  font-size: 13px;
  line-height: 1.8;
}

.practice-pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin-bottom: 64px;
}

.practice-card {
  min-width: 0;
  padding: 24px 26px 28px;
  border: 1px solid #d8dbd2;
  background: #fff;
}

.practice-card h3 {
  margin: 15px 0 11px;
  font-size: clamp(22px, 2.6vw, 30px);
  line-height: 1.4;
}

.practice-card p {
  max-width: 620px;
  margin: 0;
  color: #5d635b;
  font-size: 15px;
  line-height: 1.85;
}

.white-day-dreamer {
  padding: clamp(22px, 4vw, 50px);
  background: #efeee8;
}

.dreamer-heading {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: end;
  margin-bottom: 32px;
}

.dreamer-kicker {
  margin: 0 0 12px;
  color: #7e883d;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .1em;
}

.dreamer-heading h3 {
  margin: 0;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.25;
  letter-spacing: -.055em;
}

.dreamer-heading > p {
  max-width: 370px;
  margin: 0;
  color: #545a51;
  font-size: 16px;
  font-weight: 650;
  line-height: 1.75;
}

.dreamer-layout {
  display: grid;
  grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr);
  gap: clamp(28px, 4vw, 54px);
  align-items: start;
}

.dreamer-copy > p:first-child {
  margin: 0 0 20px;
  color: #4f554e;
  font-size: 15px;
  line-height: 1.9;
}

.dreamer-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid #c9cbc3;
}

.dreamer-steps li {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: 11px;
  align-items: start;
  padding: 14px 0;
  border-bottom: 1px solid #c9cbc3;
}

.dreamer-steps li > span {
  color: #7f893d;
  font-size: 12px;
  font-weight: 800;
}

.dreamer-steps strong,
.dreamer-steps small {
  display: block;
}

.dreamer-steps strong {
  color: #282b27;
  font-size: 16px;
}

.dreamer-steps small {
  margin-top: 4px;
  color: #697066;
  font-size: 13px;
  line-height: 1.65;
}

.dreamer-copy .dreamer-boundary {
  margin: 18px 0 0;
  color: #61675e;
  font-size: 13px;
  line-height: 1.8;
}

.dreamer-image-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  align-items: start;
}

.dreamer-image {
  min-width: 0;
  margin: 0;
}

.dreamer-image .case-photo-trigger {
  display: grid;
  width: 100%;
  min-height: 210px;
  place-items: center;
  overflow: hidden;
  background: #e17a34;
}

.dreamer-image img {
  display: block;
  width: 100%;
  max-height: 440px;
  object-fit: contain;
}

.dreamer-image-coordination img {
  max-height: 245px;
}

.dreamer-image figcaption {
  margin-top: 8px;
  color: #5b6158;
  font-size: 11px;
  line-height: 1.6;
}

.dreamer-asset-note {
  margin: 24px 0 0;
  color: #6c7269;
  font-size: 12px;
  line-height: 1.7;
}

.ip-results {
  background: #1c1d1f;
  color: var(--ip-paper);
}

.ip-results .case-heading-note {
  color: #c4c9c1;
}

.case-outcomes {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-top: 38px;
}

.outcome-card {
  min-width: 0;
  padding: 20px 18px 22px;
  border: 1px solid #464a45;
  background: #222424;
}

.outcome-card > span {
  color: var(--ip-acid);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .1em;
}

.outcome-card h3 {
  margin: 18px 0 9px;
  font-size: 18px;
  line-height: 1.5;
}

.outcome-card p {
  margin: 0;
  color: #c1c7be;
  font-size: 14px;
  line-height: 1.8;
}

.follower-snapshot {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(0, 1fr);
  gap: clamp(28px, 5vw, 74px);
  align-items: center;
  margin-top: 34px;
  padding: 34px 0 0;
  border-top: 1px solid #454945;
  color: var(--ip-paper);
}

.snapshot-copy {
  max-width: 520px;
}

.snapshot-kicker {
  margin: 0 0 14px;
  color: var(--ip-acid);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .09em;
}

.snapshot-copy h3 {
  margin: 0 0 13px;
  font-size: clamp(25px, 2.6vw, 34px);
  line-height: 1.35;
}

.snapshot-copy > p:last-child {
  max-width: 500px;
  margin: 0;
  color: #c7cbc3;
  font-size: 16px;
  line-height: 1.9;
}

.follower-proof {
  width: min(100%, 440px);
  margin: 0 auto 0 0;
}

.follower-proof .case-photo-trigger {
  width: 100%;
  background: #fff;
}

.case-zhilengjie .follower-proof img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
  transition: none;
}

.follower-proof figcaption {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 4px 14px;
  margin-top: 9px;
  color: #aeb4ab;
  font-size: 13px;
  line-height: 1.6;
}

.follower-proof figcaption span {
  color: var(--ip-acid);
  font-size: 12px;
}

.ip-reflection {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, .65fr) minmax(0, 1.4fr) minmax(70px, .35fr);
  gap: 24px;
  align-items: start;
}

.ip-reflection > .case-section-number {
  margin-top: 12px;
}

.reflection-copy {
  position: relative;
  max-width: 790px;
}

.reflection-mark {
  display: block;
  height: 56px;
  color: #98a443;
  font-family: Georgia, serif;
  font-size: 104px;
  line-height: .85;
}

.reflection-copy h2 {
  margin: 9px 0 26px;
  font-size: clamp(42px, 5.7vw, 75px);
  line-height: 1.2;
  letter-spacing: -.075em;
}

.reflection-copy p {
  max-width: 700px;
  margin: 0 0 17px;
  color: #535950;
  font-size: 16px;
  line-height: 1.95;
}

.reflection-copy .case-return-link {
  margin-top: 18px;
}

.reflection-index {
  align-self: end;
  margin: 0;
  color: #e5e7df;
  font-size: clamp(46px, 7vw, 96px);
  font-weight: 800;
  line-height: .95;
  letter-spacing: -.09em;
  text-align: right;
}

.case-zhilengjie .case-footer {
  background: #1c1d1f;
}

@media (max-width: 1100px) {
  .ip-opening-layout {
    grid-template-columns: minmax(0, 1fr) minmax(280px, .78fr);
    gap: 32px;
  }

  .ip-opening h1 {
    font-size: clamp(46px, 5.6vw, 62px);
  }

  .operation-route {
    grid-template-columns: 138px minmax(0, 1fr);
    gap: 16px;
  }

  .route-node {
    padding-right: 9px;
    padding-left: 9px;
    font-size: 14px;
  }

  .route-node + .route-node {
    margin-left: 0;
  }

  .route-node::after {
    right: -17px;
  }

  .before-after {
    grid-template-columns: 1fr;
  }

  .live-stage-images img {
    height: 300px;
  }

  .dreamer-layout {
    grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
    gap: 24px;
  }

  .dreamer-image-grid {
    gap: 8px;
  }
}

@media (max-width: 860px) {
  .ip-opening {
    padding-top: 28px;
    padding-bottom: 66px;
  }

  .ip-opening-layout {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .ip-opening h1 {
    max-width: 780px;
    font-size: clamp(46px, 8vw, 68px);
  }

  .ip-hero-visual {
    width: min(100%, 620px);
    margin-left: auto;
  }

  .ip-start-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .early-live-grid {
    grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr);
    max-width: 680px;
  }

  .operation-route {
    grid-template-columns: 122px minmax(0, 1fr);
  }

  .system-work-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .dreamer-layout {
    grid-template-columns: 1fr;
  }

  .dreamer-copy {
    max-width: 690px;
  }

  .dreamer-image-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .case-outcomes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .ip-reflection {
    grid-template-columns: minmax(0, .45fr) minmax(0, 1.55fr);
  }

  .reflection-index {
    display: none;
  }
}

@media (max-width: 700px) {
  .ip-opening {
    padding-top: 24px;
    padding-bottom: 58px;
  }

  .ip-opening .case-back-link {
    margin-bottom: 30px;
    font-size: 13px;
  }

  .ip-opening .case-eyebrow {
    margin-bottom: 14px;
    font-size: 11px;
  }

  .ip-case-meta > div:last-child {
    grid-column: 1 / -1;
  }

  .ip-opening h1 {
    font-size: clamp(30px, 9.2vw, 44px);
    line-height: 1.13;
  }

  .ip-opening .case-official-title {
    margin-top: 16px;
    font-size: 17px;
  }

  .ip-case-meta {
    grid-template-columns: 1fr 1fr;
    gap: 14px 16px;
    margin-top: 22px;
    padding: 16px 0;
  }

  .ip-case-meta > div:first-child {
    grid-column: 1 / -1;
  }

  .ip-case-meta dt {
    margin-bottom: 6px;
    font-size: 11px;
  }

  .ip-case-meta dd {
    font-size: 13px;
  }

  .ip-opening .case-thesis {
    margin-top: 18px;
    font-size: 15px;
    line-height: 1.8;
  }

  .ip-hero-visual {
    grid-template-columns: minmax(0, 1fr) minmax(0, .82fr);
    gap: 9px;
    padding: 6px 13px 30px 0;
  }

  .ip-hero-frame-secondary {
    margin-top: 50px;
  }

  .ip-hero-frame figcaption {
    font-size: 9px;
  }

  .ip-hero-stamp {
    right: -3px;
    padding: 9px 10px;
    font-size: 8px;
  }

  .ip-section {
    padding-top: 74px;
    padding-bottom: 74px;
  }

  .ip-section .case-section-heading {
    margin-bottom: 30px;
  }

  .ip-section .case-section-number {
    margin-bottom: 14px;
    font-size: 14px;
  }

  .ip-section .case-section-heading h2 {
    font-size: clamp(31px, 8vw, 42px);
  }

  .ip-section .case-heading-note {
    margin-top: 14px;
    font-size: 14px;
  }

  .ip-start-copy p {
    font-size: 15px;
    line-height: 1.85;
  }

  .early-live-grid {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }

  .early-live-card .case-photo-trigger {
    min-height: 170px;
  }

  .early-live-card img,
  .early-connection-card img {
    height: 210px;
  }

  .early-live-card figcaption {
    gap: 5px;
    font-size: 11px;
  }

  .ip-challenge-top h2 {
    font-size: clamp(38px, 10vw, 54px);
  }

  .ip-challenge-index {
    top: -15px;
    right: 0;
    font-size: 150px;
  }

  .ip-challenge-lead {
    font-size: 15px;
    line-height: 1.8;
  }

  .ip-challenge-equation {
    grid-template-columns: minmax(0, 1fr) 24px minmax(0, 1fr);
    gap: 14px 8px;
    margin-top: 34px;
    padding: 22px 0;
  }

  .ip-challenge-equation > div > span {
    font-size: 11px;
  }

  .ip-challenge-equation strong {
    font-size: 18px;
  }

  .ip-challenge-equation .ip-equation-mark:last-of-type {
    display: none;
  }

  .ip-equation-answer {
    grid-column: 1 / -1;
    padding-top: 12px;
    border-top: 1px solid #454945;
  }

  .ip-equation-answer strong br {
    display: none;
  }

  .ip-challenge-question {
    margin-top: 22px;
    font-size: 20px;
  }

  .operation-route {
    grid-template-columns: 1fr;
    gap: 9px;
    padding: 15px 0;
  }

  .route-label {
    font-size: 15px;
  }

  .route-label small {
    display: inline;
    margin: 0 0 0 8px;
    font-size: 11px;
  }

  .route-steps,
  .route-old .route-steps,
  .route-a .route-steps,
  .route-b .route-steps {
    grid-template-columns: 1fr;
    gap: 9px;
  }

  .route-node {
    min-height: 38px;
    padding: 7px 12px;
    font-size: 14px;
    line-height: 1.45;
  }

  .route-node::after {
    top: auto;
    right: 50%;
    bottom: -12px;
    content: "↓";
    transform: translateX(50%);
  }

  .route-node:last-child::after {
    content: none;
  }

  .ip-collaboration-note {
    grid-template-columns: 28px minmax(0, 1fr);
    gap: 10px;
    padding: 16px;
  }

  .ip-collaboration-note p {
    font-size: 14px;
  }

  .nurture-methods {
    grid-template-columns: 1fr;
    gap: 12px;
    margin-top: 34px;
  }

  .nurture-method {
    padding: 17px 18px 19px;
  }

  .nurture-method h3 {
    margin: 12px 0 6px;
    font-size: 19px;
  }

  .nurture-method p {
    font-size: 14px;
  }

  .system-work-grid {
    grid-template-columns: 1fr;
    margin: 28px 0 36px;
  }

  .system-work-card {
    padding: 16px 0;
  }

  .system-work-card h3 {
    margin: 10px 0 6px;
    font-size: 18px;
  }

  .system-work-card p {
    font-size: 14px;
  }

  .before-after {
    gap: 14px;
  }

  .live-stage {
    padding: 14px;
  }

  .live-stage-heading h3 {
    font-size: 18px;
  }

  .live-stage-images {
    gap: 8px;
  }

  .live-stage-images .case-photo-trigger {
    min-height: 170px;
  }

  .live-stage-images img {
    height: 205px;
  }

  .live-stage-images figcaption {
    font-size: 10px;
  }

  .ip-comparison-note {
    font-size: 12px;
  }

  .practice-pair {
    grid-template-columns: 1fr;
    gap: 12px;
    margin-bottom: 36px;
  }

  .practice-card {
    padding: 19px 20px 22px;
  }

  .practice-card h3 {
    margin: 11px 0 8px;
    font-size: 22px;
  }

  .practice-card p {
    font-size: 14px;
  }

  .white-day-dreamer {
    padding: 20px 16px;
  }

  .dreamer-heading {
    display: block;
    margin-bottom: 21px;
  }

  .dreamer-kicker {
    font-size: 10px;
  }

  .dreamer-heading h3 {
    font-size: clamp(27px, 7vw, 36px);
  }

  .dreamer-heading > p {
    margin-top: 12px;
    font-size: 14px;
  }

  .dreamer-copy > p:first-child {
    font-size: 14px;
  }

  .dreamer-image-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }

  .dreamer-image-framework {
    grid-row: span 2;
  }

  .dreamer-image .case-photo-trigger {
    min-height: 150px;
  }

  .dreamer-image img {
    max-height: 310px;
  }

  .dreamer-image-coordination img {
    max-height: 170px;
  }

  .dreamer-image figcaption {
    font-size: 10px;
  }

  .dreamer-asset-note {
    margin-top: 16px;
    font-size: 11px;
  }

  .case-outcomes {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-top: 26px;
  }

  .outcome-card {
    padding: 15px 13px 17px;
  }

  .outcome-card h3 {
    margin: 12px 0 7px;
    font-size: 16px;
  }

  .outcome-card p {
    font-size: 12px;
    line-height: 1.7;
  }

  .follower-snapshot {
    grid-template-columns: 1fr;
    gap: 22px;
    margin-top: 28px;
    padding-top: 25px;
  }

  .snapshot-copy > p:last-child {
    font-size: 15px;
  }

  .follower-proof {
    width: min(100%, 440px);
    margin: 0;
  }

  .ip-reflection {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .ip-reflection > .case-section-number {
    margin: 0;
  }

  .reflection-mark {
    height: 42px;
    font-size: 78px;
  }

  .reflection-copy h2 {
    margin: 7px 0 19px;
    font-size: clamp(38px, 10vw, 54px);
  }

  .reflection-copy p {
    font-size: 15px;
  }
}

@media (max-width: 380px) {
  .ip-opening h1 {
    font-size: clamp(30px, 9.2vw, 35px);
  }

  .ip-case-meta {
    grid-template-columns: 1fr;
  }

  .ip-case-meta > div:first-child {
    grid-column: auto;
  }

  .early-live-grid,
  .live-stage-images {
    grid-template-columns: 1fr;
  }

  .early-live-card img,
  .early-connection-card img,
  .live-stage-images img {
    height: 250px;
  }

  .route-node {
    font-size: 13px;
  }

  .dreamer-image-grid {
    grid-template-columns: 1fr 1fr;
  }

  .case-outcomes {
    grid-template-columns: 1fr;
  }

  .snapshot-copy h3 {
    font-size: 24px;
  }

  .follower-proof figcaption {
    font-size: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .case-zhilengjie .case-photo-trigger img {
    transition: none;
  }
}