/* ========================================
   CASES PAGE — 1:1 复刻App.tsx设计
   ======================================== */

/* Fonts from App.tsx */
.font-inter-900-italic {
  font-family: 'Inter';
  font-weight: 900;
  font-style: italic;
  text-transform: uppercase;
}

.font-bebas {
  font-family: 'Bebas Neue';
}

/* Main Container */
.cases-main {
  min-height: 100vh;
  background: var(--color-surface);
  color: var(--color-text);
  overflow-x: hidden;
  padding-top: 80px; /* Account for fixed header */
}

/* Selection Style */
.cases-main ::selection {
  background: var(--color-digital-cyan);
  color: var(--color-surface);
}

/* Hero Section */
.cases-hero {
  position: relative;
  padding: 60px 24px 40px;
  max-width: 1440px;
  margin: 0 auto;
  border-bottom: 4px solid var(--color-surface-high);
}

.cases-hero__container {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.cases-hero__content {
  max-width: 1024px;
}

.cases-hero__badge {
  background: var(--color-electric-red);
  color: var(--color-on-red);
  padding: 4px 16px;
  display: inline-block;
  font-family: 'Bebas Neue';
  font-size: 16px;
  margin-bottom: 16px;
  letter-spacing: 0.1em;
}

.cases-hero__headline {
  font-size: clamp(36px, 6vw, 80px);
  line-height: 0.9;
  margin-bottom: 0;
  font-family: 'Bebas Neue';
  font-weight: normal;
  letter-spacing: 0.02em;
}

.cases-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  width: 100%;
}

.cases-stat {
  background: var(--color-surface-low);
  padding: 16px;
  border: 2px solid var(--color-surface-high);
  transition: border-color 0.3s ease;
}

.cases-stat:hover {
  border-color: var(--color-digital-cyan);
}

.cases-stat__label {
  color: var(--color-digital-cyan);
  font-family: 'Bebas Neue';
  font-size: 11px;
  letter-spacing: 0.1em;
  margin-bottom: 2px;
}

.cases-stat__value {
  font-size: 28px;
  font-family: 'Inter';
  font-weight: 900;
  font-style: italic;
  text-transform: uppercase;
}

/* Main Cases - Stacked Cards Container */
.cases-stacked-container {
  background-color: #000000; /* 黑色背景 */
  padding: 3rem clamp(24px, 4vw, 80px) 6rem; /* 进一步减少底部空间 */
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem; /* 极紧凑间距 */
  position: relative;
}

@media (min-width: 768px) {
  .cases-stacked-container {
    gap: 1.2rem; /* 桌面端极紧凑间距 */
  }
}

/* Stacked Cards Base Styles */
.case-card {
  position: sticky;
  width: 100%;
  border-radius: 2rem;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow:
    0 -15px 30px rgba(0,0,0,0.15),
    0 15px 30px rgba(0,0,0,0.15);
  border-top: 1px solid rgba(255,255,255,0.05);
  min-height: 450px;
  transform-origin: top center;
  opacity: 0;
  transform: translateY(100px);
  transition: transform 0.3s ease, opacity 0.6s ease;
}

@media (min-width: 768px) {
  .case-card {
    flex-direction: row;
    min-height: 600px;
  }
}

/* 堆叠定位 - 超紧凑的堆叠效果 */
.case-card[data-index="0"] {
  top: 0.8rem;
  z-index: 1;
  --index: 0;
}

.case-card[data-index="1"] {
  top: 1.1rem;
  z-index: 2;
  --index: 1;
}

.case-card[data-index="2"] {
  top: 1.4rem;
  z-index: 3;
  --index: 2;
}

.case-card[data-index="3"] {
  top: 1.7rem;
  z-index: 4;
  --index: 3;
}

.case-card[data-index="4"] {
  top: 2rem;
  z-index: 5;
  --index: 4;
}

.case-card[data-index="5"] {
  top: 2.3rem;
  z-index: 6;
  --index: 5;
}

.case-card[data-index="6"] {
  top: 2.6rem;
  z-index: 7;
  --index: 6;
}

.case-card[data-index="7"] {
  top: 2.9rem;
  z-index: 8;
  --index: 7;
}

/* 深度遮罩层 */
.case-card__overlay {
  position: absolute;
  inset: 0;
  background: black;
  opacity: 0;
  pointer-events: none;
  z-index: 50;
  transition: opacity 0.1s ease;
}

/* 内容区域 */
.case-card__content {
  width: 100%;
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  z-index: 10;
  position: relative;
}

@media (min-width: 768px) {
  .case-card__content {
    width: 50%;
    padding: 3rem;
  }
}

@media (min-width: 1024px) {
  .case-card__content {
    padding: 4rem;
  }
}

.case-card__text {
  max-width: 32rem;
}

/* 标题样式 */
.case-card__title {
  font-family: 'Bebas Neue';
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 400;
  line-height: 1;
  margin-bottom: 1rem;
  letter-spacing: 0.05em;
}

/* 图片区域 */
.case-card__image {
  width: 100%;
  position: relative;
  min-height: 600px;
  z-index: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

@media (min-width: 768px) {
  .case-card__image {
    width: 50%;
    min-height: 700px;
  }
}

/* 图片样式 */
.case-card__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.case-card__img--cover-bottom {
  object-fit: cover;
  object-position: bottom;
}

.case-card__img--cover-position {
  object-fit: cover;
  object-position: 80% center;
}

.case-card__img--cover-right {
  object-fit: cover;
  object-position: right;
}

.case-card__img--contain-right {
  object-fit: contain;
  object-position: right;
  padding: 2rem;
}

@media (min-width: 768px) {
  .case-card__img--contain-right {
    padding: 3rem;
  }
}

.case-card__img--cover-center {
  object-fit: cover;
  object-position: center;
}

/* 渐变遮罩 */
.case-card__gradient {
  position: absolute;
  inset: 0;
  z-index: 10;
  pointer-events: none;
}

/* Phone Frame */
.phone-frame {
  position: absolute;
  right: 2rem;
  top: 50%;
  transform: translateY(-50%);
  width: 200px;
  height: 350px;
  background: #000000;
  border: 4px solid var(--color-surface-high);
  flex-shrink: 0;
  z-index: 30;
  box-shadow: 12px 12px 0px 0px rgba(0,0,0,0.2);
}

@media (min-width: 768px) {
  .phone-frame {
    right: 3rem;
    width: 220px;
    height: 380px;
  }
}

@media (min-width: 1024px) {
  .phone-frame {
    right: 4rem;
    width: 240px;
    height: 420px;
  }
}

.phone-frame__corner-tl {
  position: absolute;
  top: -8px;
  left: -8px;
  width: 24px;
  height: 24px;
  border-top: 4px solid;
  border-left: 4px solid;
}

.phone-frame__corner-br {
  position: absolute;
  bottom: -8px;
  right: -8px;
  width: 24px;
  height: 24px;
  border-bottom: 4px solid;
  border-right: 4px solid;
}

.phone-frame__screen {
  width: 100%;
  height: 100%;
  background: #0E0E0E;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.phone-frame__video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.phone-frame__placeholder {
  text-align: center;
  padding: 40px;
}

.phone-frame__spinner {
  width: 60px;
  height: 60px;
  border: 3px dashed rgba(255, 255, 255, 0.2);
  margin: 0 auto 24px;
  animation: spin 2s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.phone-frame__text {
  font-family: 'Bebas Neue';
  color: rgba(255, 255, 255, 0.4);
  font-size: 16px;
  letter-spacing: 0.2em;
}

.phone-frame__subtext {
  margin-top: 12px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.2);
  font-family: monospace;
}

.phone-frame__overlay {
  position: absolute;
  top: 24px;
  left: 24px;
  right: 24px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  pointer-events: none;
}

.phone-frame__ui-element {
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  padding: 4px 12px;
  font-size: 11px;
  font-family: monospace;
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Case Header */
.case-header {
  margin-bottom: 24px;
}

.case-header__label {
  font-size: 10px;
  font-family: 'Bebas Neue';
  letter-spacing: 0.1em;
  margin-bottom: 2px;
}

.case-header__value {
  font-size: clamp(28px, 4vw, 48px);
  font-family: 'Inter';
  font-weight: 900;
  font-style: italic;
  text-transform: uppercase;
  line-height: 1;
  margin-bottom: 8px;
}

.case-header__name {
  font-size: 20px;
  font-family: 'Bebas Neue';
  letter-spacing: 0.1em;
}

/* Case Summary */
.case-summary {
  margin-bottom: 24px;
  border-left: 4px solid;
  padding-left: 16px;
}

.case-summary__label {
  font-size: 11px;
  font-family: 'Bebas Neue';
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.case-summary__text {
  line-height: 1.4;
  font-size: 14px;
}

/* Case Timeline */
.case-timeline {
  position: relative;
  margin-bottom: 32px;
}

.case-timeline__line {
  position: absolute;
  left: 12px;
  top: 0;
  bottom: 0;
  width: 3px;
}

.case-timeline__item {
  position: relative;
  padding-left: 32px;
  margin-bottom: 20px;
}

.case-timeline__marker {
  position: absolute;
  left: 8px;
  top: 6px;
  width: 12px;
  height: 12px;
}

.case-timeline__month {
  font-family: 'Bebas Neue';
  font-size: 16px;
  letter-spacing: 0.1em;
}

.case-timeline__value {
  font-size: 24px;
  font-family: 'Inter';
  font-weight: 900;
  font-style: italic;
  text-transform: uppercase;
  margin-bottom: 2px;
}

.case-timeline__desc {
  opacity: 0.7;
  font-size: 12px;
}

/* Case Chart */
.case-chart {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 4px solid;
}

.case-chart__label {
  font-size: 11px;
  font-family: 'Bebas Neue';
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.case-chart__bars {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  height: 80px;
}

.case-chart__bar {
  width: 100%;
  flex: 1;
}

.case-chart__bar--active {
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

/* Case Strategy */
.case-strategy {
  margin-bottom: 24px;
}

.case-strategy__label {
  font-size: 11px;
  font-family: 'Bebas Neue';
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.case-strategy__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.case-strategy__item {
  padding: 12px;
  border-left: 3px solid;
}

.case-strategy__title {
  font-family: 'Bebas Neue';
  font-size: 14px;
}

.case-strategy__desc {
  font-size: 10px;
  text-transform: uppercase;
  margin-top: 2px;
}

.case-strategy__list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.case-strategy__numbered {
  background: rgba(255, 255, 255, 0.5);
  padding: 16px;
  border-left: 6px solid;
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.case-strategy__number {
  font-size: 20px;
  font-family: 'Inter';
  font-weight: 900;
  font-style: italic;
  flex-shrink: 0;
}

.case-strategy__content {
  flex: 1;
}

.case-strategy__simple {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.case-strategy__simple-item {
  padding: 24px;
  display: flex;
  align-items: center;
  gap: 24px;
  border-right: 8px solid;
}

.case-strategy__simple-number {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-family: 'Inter';
  font-weight: 900;
  font-style: italic;
  font-size: 32px;
  flex-shrink: 0;
}

.case-strategy__simple-text {
  font-size: 18px;
  font-family: 'Bebas Neue';
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.case-strategy__blocks {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.case-strategy__block {
  padding: 24px;
  border-bottom: 4px solid;
}

.case-strategy__block-title {
  font-family: 'Bebas Neue';
  font-size: 20px;
  margin-bottom: 8px;
}

.case-strategy__block-desc {
  font-size: 12px;
  text-transform: uppercase;
}

/* Case Testing (DDG specific) */
.case-testing {
  margin-bottom: 48px;
}

.case-testing__label {
  font-size: 14px;
  font-family: 'Bebas Neue';
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.case-testing__metrics {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.case-testing__metric {
  background: rgba(255, 255, 255, 0.6);
  padding: 24px;
  border-left: 8px solid;
}

.case-testing__number {
  font-size: 48px;
  font-family: 'Inter';
  font-weight: 900;
  font-style: italic;
}

.case-testing__desc {
  font-size: 12px;
  text-transform: uppercase;
}

.case-testing__process {
  background: white;
  padding: 32px;
  border: 4px solid;
}

.case-testing__result {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.case-testing__result--success .case-testing__status {
  color: #00ACC1;
  font-family: 'Bebas Neue';
}

.case-testing__result--success .case-testing__action {
  background: #00ACC1;
  color: white;
  padding: 2px 8px;
  font-size: 12px;
  font-weight: bold;
  text-transform: uppercase;
}

.case-testing__result--fail .case-testing__status {
  color: #E53935;
  font-family: 'Bebas Neue';
  text-decoration: line-through;
}

.case-testing__result--fail .case-testing__action {
  background: #E53935;
  color: white;
  padding: 2px 8px;
  font-size: 12px;
  font-weight: bold;
  text-transform: uppercase;
}

.case-testing__divider {
  height: 4px;
  background: #F5F5F5;
  margin: 16px 0;
}

.case-testing__cycle {
  padding-top: 16px;
  text-align: center;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* Case Pyramid */
.case-pyramid {
  margin-top: 32px;
  padding-top: 32px;
  border-top: 4px solid;
}

.case-pyramid__label {
  font-size: 14px;
  font-family: 'Bebas Neue';
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.case-pyramid__structure {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.case-pyramid__level {
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: bold;
  color: #4A148C;
}

.case-pyramid__level--top {
  background: rgba(155, 93, 229, 0.3);
  width: 25%;
  margin: 0 auto;
}

.case-pyramid__level--mid {
  background: rgba(155, 93, 229, 0.2);
  width: 50%;
  margin: 0 auto;
}

.case-pyramid__level--base {
  background: rgba(155, 93, 229, 0.1);
  width: 100%;
}

/* Case Efficiency (GYROOR specific) */
.case-efficiency {
  margin-top: 48px;
}

.case-efficiency__bars {
  display: flex;
  gap: 8px;
  margin-bottom: 8px;
}

.case-efficiency__bar {
  height: 48px;
  flex: 1;
  background: #001D3D;
}

.case-efficiency__bar--active {
  background: #00B4D8;
}

.case-efficiency__label {
  text-align: right;
  font-size: 10px;
  font-family: 'Bebas Neue';
  letter-spacing: 0.1em;
}

/* Case Badge Inline */
.case-badge-inline {
  display: inline-block;
  padding: 4px 12px;
  font-family: 'Bebas Neue';
  font-size: 12px;
  letter-spacing: 0.1em;
  margin-top: 0.5rem;
  border-radius: 4px;
}

/* Stacked Cards Color Themes */

/* CurveSoul - Grey */
.case-card--curvesoul {
  background-color: #6b6b6b;
  color: #ffffff;
}

.case-card--curvesoul .case-badge-inline {
  background: #ffffff;
  color: #6b6b6b;
}

.case-card--curvesoul .phone-frame__corner-tl,
.case-card--curvesoul .phone-frame__corner-br {
  border-color: #ffffff;
}

.case-card--curvesoul .case-header__label {
  color: rgba(255,255,255,0.8);
}

.case-card--curvesoul .case-header__value {
  color: #ffffff;
}

.case-card--curvesoul .case-timeline__line {
  background: rgba(255,255,255,0.3);
}

.case-card--curvesoul .case-timeline__marker {
  background: #ffffff;
}

.case-card--curvesoul .case-timeline__month {
  color: #ffffff;
}

.case-card--curvesoul .case-timeline__desc {
  color: rgba(255,255,255,0.7);
}

.case-card--curvesoul .case-chart {
  border-color: rgba(255,255,255,0.3);
}

.case-card--curvesoul .case-chart__label {
  color: rgba(255,255,255,0.8);
}

.case-card--curvesoul .case-chart__bars .case-chart__bar:nth-child(1) {
  background: #F8BBD0;
}

.case-card--curvesoul .case-chart__bars .case-chart__bar:nth-child(2) {
  background: #F48FB1;
}

.case-card--curvesoul .case-chart__bars .case-chart__bar:nth-child(3) {
  background: #FF4081;
}

.case-card--curvesoul .case-chart__bars .case-chart__bar:nth-child(4) {
  background: #C2185B;
}

/* SellerPic - Purple/White */
.case-card--sellerpic {
  background-color: #f8f4fa;
  color: #4A148C;
}

.case-card--sellerpic .case-badge-inline {
  background: #9B5DE5;
  color: white;
}

.case-card--sellerpic .phone-frame__corner-tl,
.case-card--sellerpic .phone-frame__corner-br {
  border-color: #9B5DE5;
}

.case-card--sellerpic .case-header__label {
  color: #9B5DE5;
}

.case-card--sellerpic .case-header__value {
  color: #9B5DE5;
}

.case-card--sellerpic .case-summary {
  border-color: #9B5DE5;
}

.case-card--sellerpic .case-summary__label {
  color: #9B5DE5;
}

.case-card--sellerpic .case-summary__text {
  color: #6A1B9A;
}

.case-card--sellerpic .case-strategy__label {
  color: #9B5DE5;
}

.case-card--sellerpic .case-strategy__item {
  background: rgba(155, 93, 229, 0.1);
  border-color: #9B5DE5;
}

.case-card--sellerpic .case-strategy__title {
  color: #9B5DE5;
}

.case-card--sellerpic .case-strategy__desc {
  color: #6A1B9A;
}

.case-card--sellerpic .case-pyramid {
  border-color: #E1BEE7;
}

.case-card--sellerpic .case-pyramid__label {
  color: #9B5DE5;
}

/* Upbe - Green */
.case-card--upbe {
  background-color: #4a6b58;
  color: #ffffff;
}

.case-card--upbe .case-badge-inline {
  background: #00C853;
  color: white;
}

.case-card--upbe .phone-frame__corner-tl,
.case-card--upbe .phone-frame__corner-br {
  border-color: #00C853;
}

.case-card--upbe .case-header__label {
  color: rgba(255,255,255,0.8);
}

.case-card--upbe .case-header__value {
  color: #ffffff;
}

.case-card--upbe .case-summary {
  border-color: #00C853;
}

.case-card--upbe .case-summary__label {
  color: #00C853;
}

.case-card--upbe .case-summary__text {
  color: rgba(255,255,255,0.9);
}

.case-card--upbe .case-strategy__label {
  color: #00C853;
}

.case-card--upbe .case-strategy__numbered {
  background: rgba(0, 200, 83, 0.1);
  border-color: #00C853;
}

.case-card--upbe .case-strategy__number {
  color: #00C853;
}

.case-card--upbe .case-strategy__title {
  color: #ffffff;
}

.case-card--upbe .case-strategy__desc {
  color: rgba(255,255,255,0.8);
}

/* DDG - Cream/Off-white */
.case-card--ddg {
  background-color: #ffffff;
  color: #5D4037;
}

.case-card--ddg .case-badge-inline {
  background: #8D6E63;
  color: white;
}

.case-card--ddg .phone-frame__corner-tl,
.case-card--ddg .phone-frame__corner-br {
  border-color: #8D6E63;
}

.case-card--ddg .case-header__label {
  color: #8D6E63;
}

.case-card--ddg .case-header__value {
  color: #8D6E63;
}

.case-card--ddg .case-testing__label {
  color: #8D6E63;
}

.case-card--ddg .case-testing__metric {
  background: rgba(141, 110, 99, 0.1);
  border-color: #A1887F;
}

.case-card--ddg .case-testing__desc {
  color: #8D6E63;
}

.case-card--ddg .case-testing__process {
  background: rgba(215, 204, 200, 0.3);
  border-color: #D7CCC8;
}

.case-card--ddg .case-testing__cycle {
  color: #8D6E63;
}

/* BIOHYALUX - Light Blue */
.case-card--biohyalux {
  background-color: #E1F5FE;
  color: #01579B;
}

.case-card--biohyalux .case-badge-inline {
  background: #03A9F4;
  color: white;
}

.case-card--biohyalux .phone-frame__corner-tl,
.case-card--biohyalux .phone-frame__corner-br {
  border-color: #03A9F4;
}

.case-card--biohyalux .case-header__label {
  color: #03A9F4;
}

.case-card--biohyalux .case-header__value {
  color: #03A9F4;
}

.case-card--biohyalux .case-summary {
  border-color: #0288D1;
}

.case-card--biohyalux .case-summary__label {
  color: #0288D1;
}

.case-card--biohyalux .case-strategy__label {
  color: #0288D1;
}

.case-card--biohyalux .case-strategy__simple-item {
  background: rgba(3, 169, 244, 0.1);
  border-color: #03A9F4;
}

.case-card--biohyalux .case-strategy__simple-number {
  background: #03A9F4;
  color: white;
}

/* GYROOR - Tech Blue */
.case-card--gyroor {
  background-color: #001233;
  color: #00B4D8;
}

.case-card--gyroor .case-badge-inline {
  background: #00B4D8;
  color: #001233;
}

.case-card--gyroor .phone-frame__corner-tl,
.case-card--gyroor .phone-frame__corner-br {
  border-color: #00B4D8;
}

.case-card--gyroor .case-header__label {
  color: rgba(0, 180, 216, 0.8);
}

.case-card--gyroor .case-header__value {
  color: #00B4D8;
}

.case-card--gyroor .case-summary {
  border-color: #00B4D8;
}

.case-card--gyroor .case-summary__label {
  color: #00B4D8;
}

.case-card--gyroor .case-summary__text {
  color: #CAF0F8;
}

.case-card--gyroor .case-strategy__label {
  color: #00B4D8;
}

.case-card--gyroor .case-strategy__block {
  background: rgba(0, 180, 216, 0.1);
  border-color: #00B4D8;
}

.case-card--gyroor .case-strategy__block-title {
  color: #00B4D8;
}

.case-card--gyroor .case-strategy__block-desc {
  color: #CAF0F8;
}

.case-card--gyroor .case-efficiency__label {
  color: #00B4D8;
}

/* WPS - Black/White */
.case-card--wps {
  background-color: #000000;
  color: #ffffff;
}

.case-card--wps .case-badge-inline {
  background: #ffffff;
  color: #000000;
}

.case-card--wps .phone-frame__corner-tl,
.case-card--wps .phone-frame__corner-br {
  border-color: #ffffff;
}

.case-card--wps .case-header__label {
  color: rgba(255,255,255,0.8);
}

.case-card--wps .case-header__value {
  color: #ffffff;
}

.case-card--wps .case-summary {
  border-color: #ffffff;
}

.case-card--wps .case-summary__label {
  color: #ffffff;
}

.case-card--wps .case-summary__text {
  color: rgba(255,255,255,0.9);
}

/* OVSOV - Brown/Cream */
.case-card--ovsov {
  background-color: #c2ab92;
  color: #ffffff;
}

.case-card--ovsov .case-badge-inline {
  background: rgba(255,255,255,0.2);
  color: #ffffff;
}

.case-card--ovsov .phone-frame__corner-tl,
.case-card--ovsov .phone-frame__corner-br {
  border-color: #6D4C41;
}

.case-card--ovsov .case-header__label {
  color: rgba(255,255,255,0.8);
}

.case-card--ovsov .case-header__value {
  color: #ffffff;
}

.case-card--ovsov .case-summary {
  border-color: rgba(255,255,255,0.5);
}

.case-card--ovsov .case-summary__label {
  color: #ffffff;
}

.case-card--ovsov .case-summary__text {
  color: rgba(255,255,255,0.9);
}

/* 渐变遮罩效果 */
/* 移动端渐变（垂直） */
@media (max-width: 767px) {
  .case-card__gradient--curvesoul {
    background: linear-gradient(to bottom, #6b6b6b 0%, #6b6b6b 15%, #6b6b6b99 40%, #6b6b6b00 100%);
  }

  .case-card__gradient--sellerpic {
    background: linear-gradient(to bottom, #f8f4fa 0%, #f8f4fa 0%, #f8f4fa99 15%, #f8f4fa00 50%);
  }

  .case-card__gradient--upbe {
    background: linear-gradient(to bottom, #4a6b58 0%, #4a6b58 0%, #4a6b5899 15%, #4a6b5800 50%);
  }

  .case-card__gradient--ddg {
    background: linear-gradient(to bottom, #ffffff 0%, #ffffff 0%, #ffffff99 15%, #ffffff00 50%);
  }

  .case-card__gradient--biohyalux {
    background: linear-gradient(to bottom, #E1F5FE 0%, #E1F5FE 0%, #E1F5FE99 15%, #E1F5FE00 50%);
  }

  .case-card__gradient--gyroor {
    background: linear-gradient(to bottom, #001233 0%, #001233 0%, #00123399 15%, #00123300 50%);
  }

  .case-card__gradient--wps {
    background: linear-gradient(to bottom, #000000 0%, #000000 0%, #00000099 15%, #00000000 50%);
  }

  .case-card__gradient--ovsov {
    background: linear-gradient(to bottom, #c2ab92 0%, #c2ab92 15%, #c2ab9299 40%, #c2ab9200 100%);
  }
}

/* 桌面端渐变（水平） */
@media (min-width: 768px) {
  .case-card__gradient--curvesoul {
    background: linear-gradient(to right, #6b6b6b 0%, #6b6b6b 15%, #6b6b6b99 40%, #6b6b6b00 100%);
  }

  .case-card__gradient--sellerpic {
    background: linear-gradient(to right, #f8f4fa 0%, #f8f4fa 0%, #f8f4fa99 15%, #f8f4fa00 50%);
  }

  .case-card__gradient--upbe {
    background: linear-gradient(to right, #4a6b58 0%, #4a6b58 0%, #4a6b5899 15%, #4a6b5800 50%);
  }

  .case-card__gradient--ddg {
    background: linear-gradient(to right, #ffffff 0%, #ffffff 0%, #ffffff99 15%, #ffffff00 50%);
  }

  .case-card__gradient--biohyalux {
    background: linear-gradient(to right, #E1F5FE 0%, #E1F5FE 0%, #E1F5FE99 15%, #E1F5FE00 50%);
  }

  .case-card__gradient--gyroor {
    background: linear-gradient(to right, #001233 0%, #001233 0%, #00123399 15%, #00123300 50%);
  }

  .case-card__gradient--wps {
    background: linear-gradient(to right, #000000 0%, #000000 0%, #00000099 15%, #00000000 50%);
  }

  .case-card__gradient--ovsov {
    background: linear-gradient(to right, #c2ab92 0%, #c2ab92 15%, #c2ab9299 40%, #c2ab9200 100%);
  }
}

/* Remove old secondary cases styles - now integrated into stacked cards */

/* Cases CTA */
.cases-cta {
  background: var(--color-electric-red);
  color: var(--color-on-red);
  padding: 60px 24px;
  text-align: center;
}

.cases-cta__content {
  max-width: 1440px;
  margin: 0 auto;
}

.cases-cta__headline {
  font-size: clamp(36px, 5vw, 64px);
  margin-bottom: 32px;
  line-height: 1;
}

.cases-cta__button {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: var(--color-surface);
  color: var(--color-electric-red);
  padding: 16px 32px;
  font-size: 20px;
  font-family: 'Bebas Neue';
  letter-spacing: 0.1em;
  text-decoration: none;
  transition: all 0.3s ease;
}

.cases-cta__button:hover {
  background: var(--color-digital-cyan);
  color: var(--color-surface);
  text-decoration: none;
}

.cases-cta__arrow {
  font-size: 32px;
  transition: transform 0.3s ease;
}

.cases-cta__button:hover .cases-cta__arrow {
  transform: translateX(8px);
}

/* Decorative Background */
.cases-bg-pattern {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: -1;
  opacity: 0.05;
  background-image: radial-gradient(#e5e2e1 1px, transparent 1px);
  background-size: 40px 40px;
}

/* Responsive Design */
@media (min-width: 1024px) {
  .cases-hero__container {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-end;
  }

  .cases-hero__stats {
    width: auto;
  }

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

@media (max-width: 1023px) {
  .cases-hero {
    padding: 40px 20px 32px;
  }

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

  .phone-frame {
    right: 1rem;
    width: 160px;
    height: 280px;
  }
}

@media (max-width: 768px) {
  .cases-hero__stats {
    grid-template-columns: 1fr;
  }

  .case-header__value {
    font-size: clamp(20px, 4vw, 32px);
  }

  .case-timeline__value {
    font-size: 20px;
  }

  .phone-frame {
    position: relative;
    right: auto;
    top: auto;
    transform: none;
    margin: 2rem auto;
    width: 140px;
    height: 240px;
  }

  .case-card__image {
    min-height: 400px;
  }
}