/* CSS Variables - Design System (Figma Make compatible) */
:root {
  --font-size: 14px;
  /* Typography scale variables */
  --text-2xl: 36px;
  --text-xl: 28px;
  --text-lg: 18px;
  --text-base: 16px;
  --text-sm: 14px;
  --text-xs: 12px;
  --text-tiny: 10px;
  /* Colors */
  --background: rgba(255, 255, 255, 1);
  --foreground: rgba(36, 36, 36, 1);
  --card: rgba(242, 242, 242, 1);
  --card-foreground: rgba(110, 110, 110, 1);
  --primary: rgba(0, 160, 208, 1);
  --primary-foreground: rgba(255, 255, 255, 1);
  --secondary: rgba(255, 255, 255, 1);
  --secondary-foreground: rgba(0, 160, 208, 1);
  --muted: rgba(200, 200, 200, 1);
  --muted-foreground: rgba(110, 110, 110, 1);
  --accent: rgba(53, 187, 227, 1);
  --accent-foreground: rgba(255, 255, 255, 1);
  --destructive: rgba(244, 67, 54, 1);
  --destructive-foreground: rgba(255, 255, 255, 1);
  --border: rgba(200, 200, 200, 1);
  --input: rgba(255, 255, 255, 1);
  --input-background: rgba(255, 255, 255, 1);
  --font-weight-medium: 600;
  --font-weight-normal: 300;
  --radius: 8px;
  --sidebar: rgba(242, 242, 242, 1);
  --sidebar-foreground: rgba(36, 36, 36, 1);
}

/* Base Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: var(--font-size);
}

body {
  background-color: var(--background);
  color: var(--foreground);
  font-family: "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  min-height: 100vh;
}

/* Typography matching globals.css */
h1 {
  font-size: var(--text-2xl);
  font-weight: var(--font-weight-medium);
  line-height: 1.4;
  font-family: "Helvetica Neue", Arial, sans-serif;
}

h2 {
  font-size: var(--text-xl);
  font-weight: var(--font-weight-medium);
  line-height: 1.4;
  font-family: "Helvetica Neue", Arial, sans-serif;
}

h3 {
  font-size: var(--text-lg);
  font-weight: var(--font-weight-medium);
  line-height: 1.4;
  font-family: "Helvetica Neue", Arial, sans-serif;
}

h4 {
  font-size: var(--text-base);
  font-weight: var(--font-weight-medium);
  line-height: 1.4;
  font-family: "Helvetica Neue", Arial, sans-serif;
}

p {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-normal);
  line-height: 1.6;
  font-family: "Helvetica Neue", Arial, sans-serif;
}

/* Essential Tailwind-like Utility Classes */

/* Layout */
.min-h-screen {
  min-height: 100vh;
}
.relative {
  position: relative;
}
.absolute {
  position: absolute;
}
.fixed {
  position: fixed;
}
.sticky {
  position: sticky;
}
.block {
  display: block;
}
.inline-block {
  display: inline-block;
}
.flex {
  display: flex;
}
.grid {
  display: grid;
}
.hidden {
  display: none;
}

/* Flexbox */
.items-center {
  align-items: center;
}
.items-start {
  align-items: flex-start;
}
.items-end {
  align-items: flex-end;
}
.justify-center {
  justify-content: center;
}
.justify-between {
  justify-content: space-between;
}
.justify-start {
  justify-content: flex-start;
}
.justify-end {
  justify-content: flex-end;
}
.flex-col {
  flex-direction: column;
}
.flex-row {
  flex-direction: row;
}
.flex-wrap {
  flex-wrap: wrap;
}
.flex-shrink-0 {
  flex-shrink: 0;
}
.flex-1 {
  flex: 1;
}

/* Grid */
.grid-cols-1 {
  grid-template-columns: repeat(1, minmax(0, 1fr));
}
.grid-cols-7 {
  grid-template-columns: repeat(7, minmax(0, 1fr));
}

/* Spacing */
.m-0 {
  margin: 0;
}
.mx-auto {
  margin-left: auto;
  margin-right: auto;
}
.mb-2 {
  margin-bottom: 8px;
}
.mb-3 {
  margin-bottom: 12px;
}
.mb-4 {
  margin-bottom: 16px;
}
.mb-6 {
  margin-bottom: 24px;
}
.mb-8 {
  margin-bottom: 32px;
}
.mt-4 {
  margin-top: 16px;
}
.mt-6 {
  margin-top: 24px;
}
.mt-14 {
  margin-top: 56px;
}
.gap-1 {
  gap: 4px;
}
.gap-2 {
  gap: 8px;
}
.gap-3 {
  gap: 12px;
}
.gap-4 {
  gap: 16px;
}
.gap-5 {
  gap: 20px;
}
.gap-6 {
  gap: 24px;
}
.gap-8 {
  gap: 32px;
}
.gap-x-4 {
  column-gap: 16px;
}
.gap-y-4 {
  row-gap: 16px;
}
.space-x-2 > * + * {
  margin-left: 8px;
}
.space-y-4 > * + * {
  margin-top: 16px;
}
.space-y-6 > * + * {
  margin-top: 24px;
}
.space-y-8 > * + * {
  margin-top: 32px;
}

/* Padding */
.p-0 {
  padding: 0;
}
.p-2 {
  padding: 8px;
}
.p-3 {
  padding: 12px;
}
.p-4 {
  padding: 16px;
}
.p-6 {
  padding: 24px;
}
.px-0 {
  padding-left: 0;
  padding-right: 0;
}
.px-3 {
  padding-left: 12px;
  padding-right: 12px;
}
.px-4 {
  padding-left: 16px;
  padding-right: 16px;
}
.px-6 {
  padding-left: 24px;
  padding-right: 24px;
}
.px-10 {
  padding-left: 40px;
  padding-right: 40px;
}
.py-1\.5 {
  padding-top: 6px;
  padding-bottom: 6px;
}
.py-2 {
  padding-top: 8px;
  padding-bottom: 8px;
}
.py-3 {
  padding-top: 12px;
  padding-bottom: 12px;
}
.py-6 {
  padding-top: 24px;
  padding-bottom: 24px;
}
.py-8 {
  padding-top: 32px;
  padding-bottom: 32px;
}
.py-12 {
  padding-top: 48px;
  padding-bottom: 48px;
}
.pt-4 {
  padding-top: 16px;
}
.pt-6 {
  padding-top: 24px;
}
.pb-0 {
  padding-bottom: 0;
}
.pb-4 {
  padding-bottom: 16px;
}
.pb-6 {
  padding-bottom: 24px;
}
.pl-6 {
  padding-left: 24px;
}

/* Width & Height */
.w-full {
  width: 100%;
}
.w-36 {
  width: 144px;
}
.w-48 {
  width: 192px;
}
.w-auto {
  width: auto;
}
.w-4 {
  width: 16px;
}
.w-5 {
  width: 20px;
}
.w-7 {
  width: 28px;
}
.w-8 {
  width: 32px;
}
.h-full {
  height: 100%;
}
.h-7 {
  height: 28px;
}
.h-12 {
  height: 48px;
}
.h-4 {
  width: 16px;
  height: 16px;
}
.h-5 {
  width: 20px;
  height: 20px;
}
.h-64 {
  height: 256px;
}
.max-w-\[1080px\] {
  max-width: 1080px;
}
.min-w-0 {
  min-width: 0;
}
.min-w-\[56px\] {
  min-width: 56px;
}
.min-w-\[560px\] {
  min-width: 560px;
}

/* Colors */
.bg-white {
  background-color: white;
}
.bg-background {
  background-color: var(--background);
}
.bg-primary {
  background-color: var(--primary);
}
.bg-\[\#f44336\] {
  background-color: #f44336;
}
.bg-muted\/30 {
  background-color: rgba(200, 200, 200, 0.3);
}
.bg-primary\/5 {
  background-color: rgba(0, 160, 208, 0.05);
}
.bg-primary\/10 {
  background-color: rgba(0, 160, 208, 0.1);
}
.bg-black {
  background-color: black;
}
.bg-sidebar {
  background-color: var(--sidebar);
}
.bg-card {
  background-color: var(--card);
}

.text-white {
  color: white;
}
.text-primary {
  color: var(--primary);
}
.text-foreground {
  color: var(--foreground);
}
.text-muted-foreground {
  color: var(--muted-foreground);
}
.text-primary-foreground {
  color: var(--primary-foreground);
}
.text-destructive {
  color: var(--destructive);
}
.text-destructive-foreground {
  color: var(--destructive-foreground);
}
.text-red-500 {
  color: #ef4444;
}
.text-blue-500 {
  color: #3b82f6;
}
.text-sidebar-foreground {
  color: var(--sidebar-foreground);
}
.text-white\/90 {
  color: rgba(255, 255, 255, 0.9);
}

/* Border */
.border {
  border: 1px solid var(--border);
}
.border-border {
  border-color: var(--border);
}
.border-primary {
  border-color: var(--primary);
}
.border-muted {
  border-color: var(--muted);
}
.border-t {
  border-top: 1px solid var(--border);
}
.border-b {
  border-bottom: 1px solid var(--border);
}
.rounded {
  border-radius: 4px;
}
.rounded-lg {
  border-radius: var(--radius);
}
.rounded-t-lg {
  border-top-left-radius: var(--radius);
  border-top-right-radius: var(--radius);
}

/* Typography */
.text-center {
  text-align: center;
}
.text-left {
  text-align: left;
}
.text-right {
  text-align: right;
}
.text-sm {
  font-size: var(--text-sm);
}
.text-xs {
  font-size: var(--text-xs);
}
.text-lg {
  font-size: var(--text-lg);
}
.text-xl {
  font-size: var(--text-xl);
}
.text-2xl {
  font-size: var(--text-2xl);
}
.font-bold {
  font-weight: 700;
}
.font-semibold {
  font-weight: 600;
}
.font-light {
  font-weight: 300;
}
.leading-relaxed {
  line-height: 1.6;
}
.whitespace-nowrap {
  white-space: nowrap;
}
.underline {
  text-decoration: underline;
}
.line-through {
  text-decoration: line-through;
}

/* Positioning */
.inset-0 {
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
}
.top-0 {
  top: 0;
}
.right-3 {
  right: 12px;
}
.z-50 {
  z-index: 50;
}

/* Transform & Transitions */
.transition-colors {
  transition:
    color 0.15s ease-in-out,
    background-color 0.15s ease-in-out,
    border-color 0.15s ease-in-out;
}
.transition-opacity {
  transition: opacity 0.15s ease-in-out;
}
.transition-all {
  transition: all 0.2s ease;
}
.duration-200 {
  transition-duration: 200ms;
}
.hover\:opacity-80:hover {
  opacity: 0.8;
}
.hover\:underline:hover {
  text-decoration: underline;
}
.hover\:bg-primary\/90:hover {
  background-color: rgba(0, 160, 208, 0.9);
}
.hover\:border-primary:hover {
  border-color: var(--primary);
}
.hover\:bg-gray-50:hover {
  background-color: #f9fafb;
}
.hover\:bg-primary\/20:hover {
  background-color: rgba(0, 160, 208, 0.2);
}

/* Cursor */
.cursor-pointer {
  cursor: pointer;
}
.cursor-not-allowed {
  cursor: not-allowed;
}

/* Overflow */
.overflow-hidden {
  overflow: hidden;
}
.overflow-x-auto {
  overflow-x: auto;
}
.overflow-y-auto {
  overflow-y: auto;
}

/* Object */
.object-cover {
  object-fit: cover;
}
.object-contain {
  object-fit: contain;
}

/* Aspect Ratio */
.aspect-\[1618\/1000\] {
  aspect-ratio: 1618/1000;
}
.aspect-\[4\/3\] {
  aspect-ratio: 4/3;
}

/* Animation */
.animate-spin {
  animation: spin 1s linear infinite;
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* Utility Classes for Responsiveness */
.desktop-only {
  display: none;
}
.mobile-only {
  display: block;
}

/* Responsive Classes */
@media (min-width: 640px) {
  .sm\:hidden {
    display: none;
  }
  .sm\:inline {
    display: inline;
  }
  .sm\:block {
    display: block;
  }
  .sm\:mb-6 {
    margin-bottom: 24px;
  }
  .sm\:h-96 {
    height: 384px;
  }
  .desktop-only {
    display: block;
  }
  .mobile-only {
    display: none;
  }
  .sm\:px-0 {
    padding-left: 0;
    padding-right: 0;
  }
  .sm\:mb-6 {
    margin-bottom: 24px;
  }
}

@media (min-width: 768px) {
  .md\:border {
    border: 1px solid var(--border);
  }
  .md\:rounded-lg {
    border-radius: var(--radius);
  }
  .md\:p-6 {
    padding: 24px;
  }
  .md\:px-6 {
    padding-left: 24px;
    padding-right: 24px;
  }
  .md\:px-0 {
    padding-left: 0;
    padding-right: 0;
  }
  .md\:space-y-8 {
    display: flex;
    flex-direction: column;
    gap: 32px;
  }
  .md\:flex-row {
    flex-direction: row;
  }
  .md\:justify-between {
    justify-content: space-between;
  }
  .md\:items-start {
    align-items: flex-start;
  }
  .md\:flex-col {
    flex-direction: column;
  }
  .md\:text-center {
    text-align: center;
  }
  .md\:px-3 {
    padding-left: 12px;
    padding-right: 12px;
  }
  .md\:mb-2 {
    margin-bottom: 8px;
  }
  .md\:gap-x-6 {
    column-gap: 24px;
  }
  .md\:aspect-\[4\/3\] {
    aspect-ratio: 4/3;
  }
  .md\:w-8 {
    width: 32px;
  }
  .md\:h-8 {
    height: 32px;
  }
  .md\:overflow-visible {
    overflow: visible;
  }
  .md\:mx-0 {
    margin-left: 0;
    margin-right: 0;
  }
  .md\:min-w-\[unset\] {
    min-width: unset;
  }
  .md\:mt-20 {
    margin-top: 80px;
  }
  .md\:mt-0 {
    margin-top: 0;
  }
  .md\:px-\[21px\] {
    padding-left: 21px;
    padding-right: 21px;
  }
  .md\:rounded-t-lg {
    border-top-left-radius: var(--radius);
    border-top-right-radius: var(--radius);
  }
  
  /* レスポンシブ表示制御の追加 */
  .md\:block {
    display: block !important;
  }
  .md\:hidden {
    display: none !important;
  }
}

@media (min-width: 1024px) {
  .lg\:flex-row {
    flex-direction: row;
  }
  .lg\:w-80 {
    width: 320px;
  }
  .lg\:flex-shrink-0 {
    flex-shrink: 0;
  }
  .lg\:grid-cols-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .lg\:justify-self-end {
    justify-self: end;
  }
}

/* Section Title Responsive */
.section-title-responsive {
  font-size: 24px;
  font-weight: 600;
  line-height: 1.4;
  font-family: "Helvetica Neue", Arial, sans-serif;
  text-align: left;
  padding-left: 16px;
  padding-right: 16px;
  margin-bottom: 32px;
}

@media (min-width: 768px) {
  .section-title-responsive {
    font-size: var(--text-xl);
    text-align: left;
    padding-left: 0;
    padding-right: 0;
    margin-bottom: 48px;
  }
}

/* Review Styles */
.review-background {
  background-color: #ebf8fc;
}

.review-border {
  border-left: 4px solid #00789b;
}

.review-quote {
  color: #00789b;
}

/* Hide scrollbar */
.hide-scrollbar {
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.hide-scrollbar::-webkit-scrollbar {
  display: none;
}

/* Custom styles for specific elements */
.body-secondary {
  font-size: var(--text-xs);
  font-weight: var(--font-weight-normal);
  line-height: 1.2;
  font-family: "Helvetica Neue", Arial, sans-serif;
}

.body-bold {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  line-height: 1.2;
  font-family: "Helvetica Neue", Arial, sans-serif;
}

/* Forms */
input,
select,
button {
  border-radius: var(--radius);
  font-family: "Helvetica Neue", Arial, sans-serif;
}

input[type="checkbox"] {
  width: 16px;
  height: 16px;
  margin-right: 6px;
  accent-color: var(--primary);
}

select {
  appearance: none;
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='currentColor'%3E%3Cpath fill-rule='evenodd' d='M5.293 7.293a1 1 0 011.414 0L10 10.586l3.293-3.293a1 1 0 111.414 1.414l-4 4a1 1 0 01-1.414 0l-4-4a1 1 0 010-1.414z' clip-rule='evenodd'/%3E%3C/svg%3E");
  background-position: right 8px center;
  background-repeat: no-repeat;
  background-size: 16px;
  padding-right: 32px;
}

button:focus,
select:focus,
input:focus {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* Mobile responsiveness adjustments */
@media (max-width: 767px) {
  .plans-list .plan-card {
    margin: 0 -16px;
    border-radius: 0;
    border-left: none;
    border-right: none;
  }

  .plans-list .plan-card:first-child {
    border-top: none;
  }

  /* SP版select要素のフォントサイズを14pxに設定 */
  select {
    font-size: var(--text-sm); /* 14px */
    font-weight: var(--font-weight-normal); /* 300 */
    line-height: 1.4;
    font-family: "Helvetica Neue", Arial, sans-serif;
  }
  
  select option {
    font-size: var(--text-sm); /* 14px */
    font-weight: var(--font-weight-normal); /* 300 */
    font-family: "Helvetica Neue", Arial, sans-serif;
  }

  /* SP版適用中の条件表示時の上部マージン */
  #active-filters {
    margin-top: 16px;
  }
}

/* PC版適用中の条件表示時の下部マージン */
@media (min-width: 768px) {
  #active-filters {
    margin-bottom: 24px;
  }
}

/* Additional responsive utilities */
.-mx-4 {
  margin-left: -16px;
  margin-right: -16px;
}
.-mx-16 {
  margin-left: -64px;
  margin-right: -64px;
}

/* Flex utilities */
.flex-shrink {
  flex-shrink: 1;
}

/* Width utilities */
.w-\[120px\] {
  width: 120px;
}
.w-\[140px\] {
  width: 140px;
}

/* md:w-12 utility for desktop width of 48px with higher specificity */
@media (min-width: 768px) {
  .md\\:w-12 {
    width: 48px;
  }
}

/* Height utilities */
.max-h-\[90vh\] {
  max-height: 90vh;
}

/* Display utilities */
.contents {
  display: contents;
}

/* Additional margin utilities */
.mt-auto {
  margin-top: auto;
}

/* Transform utilities */
.translate-y-\[-1px\] {
  transform: translateY(-1px);
}

/* Additional padding utilities */
.px-2 {
  padding-left: 8px;
  padding-right: 8px;
}
.py-1 {
  padding-top: 4px;
  padding-bottom: 4px;
}

/* Additional gap utilities */
.gap-0\.5 {
  gap: 2px;
}

/* Additional border utilities */
.border-2 {
  border-width: 2px;
}

/* Word break utilities */
.break-all {
  word-break: break-all;
}

/* Specific width utilities */
.max-w-md {
  max-width: 448px;
}
.max-w-4xl {
  max-width: 896px;
}

/* Additional z-index utilities */
.z-10 {
  z-index: 10;
}

/* Additional opacity utilities */
.opacity-50 {
  opacity: 0.5;
}
.opacity-60 {
  opacity: 0.6;
}
.opacity-80 {
  opacity: 0.8;
}
.opacity-100 {
  opacity: 1;
}

/* Additional display utilities */
.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;
}

/* Loading spinner border */
.border-t-transparent {
  border-top-color: transparent;
}

/* SNS icon sizes */
.w-\[50px\] {
  width: 50px;
}
.h-\[50px\] {
  height: 50px;
}

/* Plan card specific utilities */
.w-\[21px\] {
  width: 21px;
}
.px-\[21px\] {
  padding-left: 21px;
  padding-right: 21px;
}
.w-\[560px\] {
  width: 560px;
}
.min-w-\[560px\] {
  min-width: 560px;
}
.min-w-\[56px\] {
  min-width: 56px;
}
.min-w-\[unset\] {
  min-width: unset;
}
.w-80 {
  width: 320px;
}
.w-10 {
  width: 40px;
}
.w-12 {
  width: 48px;
}
.h-10 {
  height: 40px;
}
.h-8 {
  height: 32px;
}
.lg\:w-80 {
  width: 320px;
}
.lg\:flex-shrink-0 {
  flex-shrink: 0;
}
.-webkit-line-clamp-2 {
  -webkit-line-clamp: 2;
}
.-webkit-box-orient-vertical {
  -webkit-box-orient: vertical;
}
.text-ellipsis {
  text-overflow: ellipsis;
}
.bg-primary\/5 {
  background-color: rgba(0, 160, 208, 0.05);
}
.bg-primary\/10 {
  background-color: rgba(0, 160, 208, 0.1);
}
.bg-muted\/30 {
  background-color: rgba(200, 200, 200, 0.3);
}
.opacity-60 {
  opacity: 0.6;
}

/* Responsive utilities for large screens */
@media (min-width: 1024px) {
  .lg\:w-80 {
    width: 320px;
  }
  .lg\:flex-shrink-0 {
    flex-shrink: 0;
  }
}

/* Active filters border removal */
.active-filters .border-0 {
  border: 0;
}

/* Filter remove button styling */
.remove-filter {
  width: 16px;
  height: 16px;
  background-color: rgba(0, 160, 208, 0);
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  transition: background-color 0.2s ease;
}

.remove-filter:hover {
  background-color: rgba(0, 160, 208, 0.1);
}

.remove-filter svg {
  color: #00a0d0;
  stroke: #00a0d0;
  width: 12px;
  height: 12px;
}

/* Mobile Modal Animation Styles */
#modal-overlay {
  opacity: 0;
  transition: opacity 300ms ease-out;
}

#modal-panel {
  transform: translateY(100%);
  transition: transform 300ms ease-out;
}

/* Ensure modal content is properly clickable */
#modal-content,
#modal-content *,
#modal-panel,
#filter-modal {
  pointer-events: auto;
}

/* プランカード基本構造 - React版と同じレイアウト */
.plan-card {
  position: relative;
  background-color: white;
  padding: 0;
  padding-bottom: 0;
}

/* プランカードヘッダー */
.plan-card-header {
  background-color: rgba(245, 245, 245, 1);
  padding: 16px;
  margin: 0;
  margin-bottom: 16px;
}

/* PC版とSP版レイアウトを包括するコンテナ */
.plan-card-content {
  padding: 24px;
}

/* SP版でのみ表示される要素 */
@media (max-width: 767px) {
  .plan-card {
    /* SP版では境界線なし、角丸なし */
    border: none;
    border-radius: 0;
    /* SP版では上部に16px solid #f2f2f2のborderを追加 */
    border-top: 16px solid #f2f2f2;
    /* SP版ではpadding-topを削除 */
    padding-top: 0;
  }
  
  .plan-card-header {
    /* SP版ではグレー背景を削除して白背景に */
    background-color: white;
    /* SP版では下部に罫線を追加 */
    border-bottom: 1px solid #f2f2f2;
  }
  
  .plan-card-content {
    /* SP版では全体のpaddingなし */
    padding: 0;
  }
  
  /* SP版の詳細情報gap調整 */
  .gap-y-1\.5 {
    row-gap: 6px;
  }
  
  /* SP版の価格エリアを左寄せに */
  .plan-card .block.md\:hidden .plan-price-container {
    text-align: left;
    align-items: flex-start;
  }
  
  .plan-card .block.md\:hidden .plan-price-details {
    justify-content: flex-start;
  }
}

/* PC版でのみ表示される要素 */
@media (min-width: 768px) {
  .plan-card {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0;
    /* PC版では通常のborderを維持 */
  }
  
  .plan-card-header {
    /* PC版ではグレー背景を維持 */
    background-color: rgba(245, 245, 245, 1);
    /* PC版では下部罫線なし */
    border-bottom: none;
  }
  
  .plan-card-content {
    /* PC版ではコンテンツ部分にpadding適用 */
    padding: 24px;
  }
}