/* ============================================
   Medcle - Static Site Stylesheet
   ============================================ */

/* ---------- Reset & Base ---------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", Meiryo, sans-serif;
  color: #222;
  background: #fff;
  line-height: 1.9;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
  letter-spacing: 0.02em;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.page-content {
  flex: 1;
}

img {
  max-width: 100%;
  height: auto;
  vertical-align: middle;
}

a {
  color: #375590;
  text-decoration: none;
  transition: opacity 0.2s;
}

a:hover {
  opacity: 0.75;
}

p {
  margin-bottom: 12px;
}

p:last-child {
  margin-bottom: 0;
}

ul {
  padding-left: 1.4em;
}

ul li {
  margin-bottom: 4px;
}

/* ---------- Utility ---------- */
.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 24px;
}

.pc-only { display: block; }
.sp-only { display: none; }

@media (max-width: 768px) {
  .pc-only { display: none !important; }
  .sp-only { display: block !important; }
}

/* ---------- Header ---------- */
.site-header {
  background: #375590;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.12);
}

.header-inner {
  display: flex;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
  height: 64px;
}

.header-logo {
  margin-right: auto;
}

.header-logo img {
  height: 32px;
  width: auto;
}

.header-logo a {
  display: flex;
  align-items: center;
  gap: 14px;
}

.header-label {
  color: rgba(255, 255, 255, 0.9);
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
  border-left: 1px solid rgba(255, 255, 255, 0.35);
  padding-left: 14px;
  line-height: 1.3;
  letter-spacing: 0.08em;
}

@media (max-width: 768px) {
  .header-inner {
    padding: 0 16px;
    height: 56px;
  }

  .header-logo img {
    height: 28px;
  }

  .header-label {
    font-size: 10px;
    padding-left: 10px;
  }
}

/* Navigation */
.gnav {
  display: flex;
  align-items: center;
  gap: 0;
}

.gnav a {
  color: #fff;
  font-size: 13px;
  font-weight: 500;
  padding: 0 18px;
  height: 64px;
  display: flex;
  align-items: center;
  transition: background 0.2s;
  white-space: nowrap;
  letter-spacing: 0.04em;
}

.gnav a:hover,
.gnav a.active {
  background: rgba(255, 255, 255, 0.15);
  opacity: 1;
}

.gnav a.disabled {
  opacity: 0.45;
  pointer-events: none;
}

/* Header Contact Button */
.header-contact {
  display: inline-flex;
  align-items: center;
  background: #fff;
  color: #375590;
  font-size: 12px;
  font-weight: 700;
  padding: 0 18px;
  border-radius: 4px;
  text-decoration: none;
  white-space: nowrap;
  letter-spacing: 0.06em;
  margin-left: 20px;
  transition: background 0.2s, color 0.2s;
  height: 34px;
  align-self: center;
}

.header-contact:hover {
  background: #E4EBF9;
  color: #063179;
}

.header-contact-disabled {
  opacity: 0.45;
  pointer-events: none;
  cursor: default;
  user-select: none;
  -webkit-user-select: none;
}

.header-contact-disabled:hover {
  background: #fff;
  color: #375590;
}

@media (max-width: 1080px) {
  .header-contact {
    display: none;
  }
}

/* Hamburger */
.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 1100;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: #fff;
  margin: 6px 0;
  transition: transform 0.3s, opacity 0.3s;
}

.hamburger.open span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.hamburger.open span:nth-child(2) {
  opacity: 0;
}

.hamburger.open span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* Mobile Nav Drawer */
.nav-drawer {
  display: none;
  position: fixed;
  top: 64px;
  right: 0;
  left: auto;
  bottom: auto;
  width: 280px;
  max-height: calc(100vh - 64px);
  background: #375590;
  z-index: 999;
  padding: 16px 0;
  overflow-y: auto;
  border-radius: 0 0 0 8px;
  box-shadow: -2px 4px 12px rgba(0, 0, 0, 0.15);
}

.nav-drawer.open {
  display: block;
}

@media (max-width: 768px) {
  .nav-drawer {
    top: 56px;
    width: 100%;
    left: 0;
    right: 0;
    bottom: 0;
    max-height: none;
    border-radius: 0;
    box-shadow: none;
  }
}

.nav-drawer a {
  display: block;
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  padding: 16px 32px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.nav-drawer a:hover {
  background: rgba(255, 255, 255, 0.1);
}

.nav-drawer a.disabled {
  opacity: 0.45;
  pointer-events: none;
}

.nav-drawer a.nav-drawer-sub {
  display: block;
  background: #fff;
  color: #375590;
  font-size: 14px;
  font-weight: 600;
  padding: 12px 32px;
  margin: 6px 24px;
  border-radius: 6px;
  text-decoration: none;
  text-align: center;
  border: none;
}

.nav-drawer a.nav-drawer-sub:first-of-type {
  margin-top: 20px;
}

.nav-drawer a.nav-drawer-sub:hover {
  background: #E4EBF9;
  color: #063179;
}

.nav-drawer-sub.disabled {
  opacity: 0.4;
  pointer-events: none;
  user-select: none;
  -webkit-user-select: none;
}

@media (max-width: 1080px) {
  .gnav { display: none; }
  .hamburger { display: block; }
}

/* ---------- Gate Dialog Overlay ---------- */
.gate-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 10000;
  background: rgba(0, 0, 0, 0.55);
  align-items: center;
  justify-content: center;
  padding: 24px;
  transition: opacity 0.3s;
}

.gate-dialog {
  background: #fff;
  border-radius: 16px;
  padding: 44px 52px;
  max-width: 640px;
  width: 100%;
  box-shadow: 0 12px 48px rgba(0, 0, 0, 0.3);
  animation: gateSlideIn 0.35s ease;
}

@keyframes gateSlideIn {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

.gate-dialog p {
  margin-bottom: 24px;
  line-height: 1.9;
  font-size: 14px;
  color: #444;
}

.gate-question {
  background: #E4EBF9;
  text-align: center;
  color: #063179;
  font-weight: 700;
  font-size: 18px;
  padding: 16px 20px;
  border-radius: 8px;
  margin-bottom: 28px;
  letter-spacing: 0.06em;
}

.gate-buttons {
  display: flex;
  justify-content: center;
  gap: 30px;
  margin-top: 30px;
}

.gate-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 180px;
  padding: 14px 40px;
  border-radius: 50px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  border: none;
  text-decoration: none;
  letter-spacing: 0.06em;
}

.gate-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  opacity: 1;
}

.gate-btn-yes {
  background: #375590;
  color: #fff;
}

.gate-btn-no {
  background: #fff;
  color: #375590;
  border: 2px solid #375590;
}

@media (max-width: 480px) {
  .gate-dialog {
    padding: 28px 24px;
  }

  .gate-buttons {
    flex-direction: column;
    align-items: center;
    gap: 16px;
  }

  .gate-btn {
    width: 100%;
    min-width: unset;
  }
}

/* ---------- Page Content ---------- */
.page-content {
  padding: 0;
}

/* Hero/Top Banner */
.hero-banner {
  text-align: center;
  margin-bottom: 0;
  line-height: 0;
  background: #E4EBF9;
  padding: 36px 24px 32px;
}

.hero-banner img {
  max-width: 680px;
  width: 100%;
  height: auto;
  display: block;
  margin: 0 auto;
}

/* Section Heading */
.section-heading {
  color: #063179;
  font-size: 22px;
  font-weight: 700;
  margin-top: 56px;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid #E4EBF9;
  letter-spacing: 0.03em;
  line-height: 1.5;
}

.section-heading:first-child {
  margin-top: 48px;
}

/* Heading with inline button */
.heading-with-btn {
  display: flex;
  align-items: baseline;
  gap: 20px;
  flex-wrap: wrap;
}

.heading-with-btn .section-heading {
  margin-bottom: 0;
  flex-shrink: 0;
}

.btn-primary.btn-sm {
  padding: 8px 24px;
  font-size: 13px;
  border-radius: 50px;
  white-space: nowrap;
  flex-shrink: 0;
  margin-bottom: 20px;
  align-self: flex-end;
}

@media (max-width: 768px) {
  .heading-with-btn {
    flex-direction: column;
    gap: 8px;
  }

  .btn-primary.btn-sm {
    align-self: flex-start;
    margin-bottom: 12px;
  }
}

h3.sub-heading {
  font-size: 18px;
  font-weight: 700;
  margin-top: 36px;
  margin-bottom: 14px;
  color: #222;
}

h4.sub-heading {
  font-size: 16px;
  font-weight: 700;
  margin-top: 28px;
  margin-bottom: 12px;
  color: #222;
}

@media (max-width: 768px) {
  .section-heading { font-size: 20px; margin-top: 40px; }
  h3.sub-heading { font-size: 16px; }
  h4.sub-heading { font-size: 15px; }
}

/* Product Columns */
.product-columns {
  display: flex;
  gap: 40px;
  align-items: center;
  margin: 24px 0;
}

.product-columns .text-col {
  flex: 3;
}

.product-columns .image-col {
  flex: 1.5;
  text-align: center;
}

.product-columns .image-col img {
  max-width: 220px;
}

@media (max-width: 768px) {
  .product-columns {
    flex-direction: column;
    gap: 20px;
  }

  .product-columns .image-col {
    order: -1;
  }

  .product-columns .image-col img {
    max-width: 160px;
    margin: 0 auto;
    display: block;
  }
}

/* Image Center Block */
.img-center {
  text-align: center;
  margin: 28px 0;
}

.img-center img {
  max-width: 680px;
  width: 100%;
  border-radius: 4px;
}

.img-center.narrow img {
  max-width: 620px;
}

.img-center.wide img {
  max-width: 780px;
}

/* Button Link */
.btn-link {
  display: inline-block;
  margin: 16px 0;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #375590;
  color: #fff;
  padding: 13px 36px;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 600;
  transition: transform 0.2s, box-shadow 0.2s;
  border: none;
  cursor: pointer;
  letter-spacing: 0.04em;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  opacity: 1;
  color: #fff;
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #fff;
  color: #375590;
  padding: 16px 64px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  border: 2px solid #375590;
  transition: transform 0.2s, background 0.2s, box-shadow 0.2s;
  cursor: pointer;
  letter-spacing: 0.06em;
  min-width: 280px;
  margin: 0 8px;
}

.btn-outline:hover {
  background: #f0f4fa;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(55, 85, 144, 0.15);
  opacity: 1;
}

.btn-outline-disabled {
  opacity: 0.4;
  pointer-events: none;
  cursor: default;
}

.btn-outline-disabled:hover {
  transform: none;
  box-shadow: none;
  background: #fff;
}

@media (max-width: 768px) {
  .btn-outline {
    min-width: 240px;
    padding: 14px 48px;
  }
}

/* Reference Note */
.ref-note {
  font-size: 14px;
  color: #666;
  text-align: center;
  margin: 12px auto 0;
  max-width: 720px;
  line-height: 1.7;
}

.ref-note a {
  color: #375590;
  font-size: 14px;
  text-decoration: none;
  white-space: nowrap;
}

.ref-note a:hover {
  text-decoration: underline;
}

/* Clinical Table */
.clinical-table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0 24px;
  font-size: 15px;
}

.clinical-table th {
  background: #E4EBF9;
  color: #063179;
  font-weight: 600;
  text-align: left;
  padding: 14px 18px;
  border: 1px solid #d0d8e8;
  width: 180px;
  vertical-align: top;
  font-size: 14px;
}

.clinical-table td {
  padding: 14px 18px;
  border: 1px solid #d0d8e8;
  vertical-align: top;
  font-size: 14px;
  line-height: 1.8;
}

@media (max-width: 768px) {
  .clinical-table th {
    width: 120px;
    padding: 10px 12px;
    font-size: 14px;
  }

  .clinical-table td {
    padding: 10px 12px;
    font-size: 14px;
  }
}

/* Spec Table */
.spec-table-wrap {
  max-width: 680px;
  margin: 20px auto 32px;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(6, 49, 121, 0.08);
  border: 1px solid #d0d8e8;
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  line-height: 1.8;
}

.spec-table th {
  background: #E4EBF9;
  color: #063179;
  font-weight: 600;
  text-align: left;
  padding: 16px 20px;
  border-bottom: 1px solid #d0d8e8;
  width: 190px;
  vertical-align: top;
  white-space: nowrap;
  font-size: 13px;
  letter-spacing: 0.03em;
}

.spec-table td {
  padding: 16px 20px;
  border-bottom: 1px solid #e4e9f0;
  vertical-align: top;
  font-size: 14px;
  color: #333;
}

.spec-table tr:last-child th,
.spec-table tr:last-child td {
  border-bottom: none;
}

.spec-table .env-list {
  list-style: none;
  margin: 8px 0 0;
  padding: 0;
}

.spec-table .env-list li {
  position: relative;
  padding-left: 14px;
  font-size: 13px;
  color: #555;
  line-height: 2;
}

.spec-table .env-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  background: #375590;
  border-radius: 50%;
}

.spec-table .func-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px 16px;
}

.spec-table .func-list li {
  position: relative;
  padding-left: 14px;
  font-size: 13.5px;
  line-height: 2;
}

.spec-table .func-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  background: #375590;
  border-radius: 50%;
}

@media (max-width: 768px) {
  .spec-table-wrap {
    border-radius: 8px;
    margin: 16px auto 24px;
  }

  .spec-table th {
    width: 110px;
    padding: 12px 14px;
    font-size: 12px;
    white-space: normal;
  }

  .spec-table td {
    padding: 12px 14px;
    font-size: 13px;
  }

  .spec-table .func-list {
    grid-template-columns: 1fr;
  }
}

/* Data Table (multi-column clinical data) */
.data-table-wrap {
  max-width: 720px;
  margin: 20px auto 32px;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(6, 49, 121, 0.08);
  border: 1px solid #d0d8e8;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
  font-size: 14px;
  line-height: 1.7;
}

.data-table thead th {
  background: #E4EBF9;
  color: #063179;
  font-weight: 600;
  text-align: center;
  padding: 14px 16px;
  border-bottom: 2px solid #d0d8e8;
  font-size: 13px;
  letter-spacing: 0.03em;
}

.data-table thead th:first-child {
  text-align: left;
}

.data-table td {
  padding: 12px 16px;
  border-bottom: 1px solid #e4e9f0;
  vertical-align: middle;
  font-size: 14px;
  color: #333;
  text-align: center;
}

.data-table td:first-child {
  text-align: left;
  color: #333;
  font-weight: 500;
  background: rgba(228, 235, 249, 0.25);
}

.data-table tr:last-child td {
  border-bottom: none;
}

.data-table .category-row td {
  background: #f0f4fb;
  font-weight: 600;
  color: #063179;
  text-align: left;
  padding: 10px 16px;
  font-size: 13px;
  border-bottom: 1px solid #d0d8e8;
}

.data-table .sub-row td:first-child {
  padding-left: 28px;
}

.data-table .sub-row-alt td:first-child {
  background: #f0f1f3;
}

@media (max-width: 768px) {
  .data-table-wrap {
    border-radius: 8px;
    margin: 16px auto 24px;
  }

  .data-table thead th {
    padding: 10px 10px;
    font-size: 12px;
  }

  .data-table td {
    padding: 10px 10px;
    font-size: 12px;
  }

  .data-table .sub-row td:first-child {
    padding-left: 20px;
  }
}

/* Results Box */
.result-box {
  background: #f7f9fc;
  border-left: 3px solid #375590;
  padding: 20px 28px;
  margin: 20px 0;
  border-radius: 0 6px 6px 0;
  font-size: 14px;
}

.result-box p {
  margin-bottom: 8px;
}

.result-box p:last-child {
  margin-bottom: 0;
}

/* FAQ / Accordion */
.accordion {
  margin: 20px 0;
}

.accordion-item {
  border-bottom: 1px solid #e0e0e0;
}

.accordion-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 0;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: #1a1a1a;
  background: none;
  border: none;
  width: 100%;
  text-align: left;
}

.accordion-header::after {
  content: "+";
  font-size: 20px;
  font-weight: 700;
  color: #063179;
  flex-shrink: 0;
  margin-left: 16px;
  transition: transform 0.3s;
}

.accordion-item.open .accordion-header::after {
  content: "−";
}

.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
  padding: 0;
}

.accordion-item.open .accordion-body {
  max-height: 1000px;
  padding-bottom: 18px;
}

.accordion-body p {
  font-size: 14px;
  line-height: 1.8;
  color: #333;
}

/* Password Form */
.password-section {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 50vh;
  padding: 60px 24px;
}

.password-box {
  background: #f8f9fc;
  border-radius: 12px;
  padding: 48px;
  max-width: 500px;
  width: 100%;
  text-align: center;
}

.password-box h2 {
  color: #063179;
  font-size: 20px;
  margin-bottom: 16px;
}

.password-box p {
  margin-bottom: 24px;
  font-size: 14px;
  color: #666;
}

.password-box input[type="password"] {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid #d0d8e8;
  border-radius: 8px;
  font-size: 16px;
  margin-bottom: 16px;
  outline: none;
}

.password-box input[type="password"]:focus {
  border-color: #375590;
}

.password-box button {
  width: 100%;
}

/* Terminology */
.term-list {
  margin: 16px 0;
  padding-left: 0;
  list-style: none;
}

.term-list li {
  padding: 4px 0;
  font-size: 14px;
  color: #444;
}

.term-list li strong {
  color: #063179;
}

/* Note text */
.note {
  font-size: 13px;
  color: #777;
  margin-top: 8px;
  line-height: 1.7;
}

/* Spacer */
.spacer-sm { height: 16px; }
.spacer-md { height: 32px; }
.spacer-lg { height: 60px; }

/* ---------- CTA Box ---------- */
.cta-box {
  background: #f0f1f3;
  color: #333;
  text-align: center;
  padding: 48px 32px;
  border-radius: 12px;
}

.cta-box-text {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 28px;
  letter-spacing: 0.04em;
}

.cta-box-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.cta-box-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 48px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.04em;
  min-width: 220px;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
  cursor: pointer;
  text-decoration: none;
}

.cta-box-btn-outline {
  background: transparent;
  color: #fff;
  border: 2px solid #fff;
}

.cta-box-btn-outline:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  opacity: 1;
  color: #fff;
}

.cta-box-btn-fill {
  background: #375590;
  color: #fff;
  border: 2px solid #375590;
}

.cta-box-btn-fill:hover {
  background: #2c4574;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(55, 85, 144, 0.3);
  opacity: 1;
  color: #fff;
}

.cta-box-btn-disabled {
  opacity: 0.45;
  pointer-events: none;
  cursor: default;
}

.cta-box-btn-disabled:hover {
  transform: none;
  box-shadow: none;
}

@media (max-width: 768px) {
  .cta-box {
    padding: 36px 16px;
  }
  .cta-box-text {
    font-size: 16px;
  }
  .cta-box-btn {
    min-width: 180px;
    padding: 12px 32px;
    font-size: 14px;
  }
}

/* ---------- Footer ---------- */
.site-footer {
  background: #e4ebf9;
  color: #333;
  padding: 16px 0 12px;
  margin-top: 0;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
}

.footer-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-company {
  color: #333;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  flex: 1;
}

.footer-copyright {
  font-size: 11px;
  color: #333;
  flex: 1;
  text-align: center;
}

.footer-icons {
  flex: 1;
  text-align: right;
}

.footer-icons img {
  height: 40px;
  width: auto;
  opacity: 0.85;
}

@media (max-width: 480px) {
  .footer-row {
    flex-direction: column;
    gap: 14px;
    text-align: center;
  }

  .footer-company,
  .footer-copyright,
  .footer-icons {
    flex: none;
    text-align: center;
  }
}

/* ---------- Scroll to Top ---------- */
.scroll-top {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 50px;
  height: 50px;
  background: #375590;
  color: #fff;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  font-size: 20px;
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 999;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
  transition: opacity 0.3s;
}

.scroll-top.show {
  display: flex;
}

.scroll-top:hover {
  opacity: 0.85;
}

/* ---------- Study Section ---------- */
.study-section {
  background: #f8f9fc;
  border-radius: 12px;
  padding: 32px;
  margin: 32px 0;
}

.study-section h3 {
  color: #063179;
  font-size: 20px;
  margin-bottom: 16px;
}

/* ---------- Study Navigation Buttons ---------- */
.study-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin: 28px 0 40px;
}

.study-button {
  flex: 1;
  max-width: 430px;
}

.study-button a {
  display: flex;
  align-items: center;
  gap: 12px;
  background: #f5f7fb;
  color: #2a4a7f;
  text-decoration: none;
  padding: 20px 24px;
  border-radius: 10px;
  border: 1.5px solid #d0d9ea;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0.03em;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s, border-color 0.2s;
  min-height: 100%;
  box-sizing: border-box;
}

.study-button a:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(42, 74, 127, 0.12);
  background: #edf1f8;
  border-color: #a8b8d8;
  opacity: 1;
}

.study-button-number {
  font-size: 22px;
  flex-shrink: 0;
  line-height: 1;
}

.study-button-label {
  font-size: 15px;
  flex: 1;
}

.study-button-arrow {
  font-size: 12px;
  flex-shrink: 0;
  opacity: 0.7;
  margin-left: auto;
}

@media (max-width: 768px) {
  .study-buttons {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }

  .study-button {
    max-width: 100%;
  }

  .study-button a {
    padding: 16px 18px;
  }

  .study-button-number {
    font-size: 18px;
  }

  .study-button-label {
    font-size: 14px;
  }
}

/* Study Title Image Block */
.study-title-block {
  margin-top: 48px;
  margin-bottom: 8px;
  padding-top: 24px;
  scroll-margin-top: 80px;
}

.study-title-img {
  width: auto;
  max-width: 100%;
  height: auto;
}

.study-title-text {
  background: linear-gradient(135deg, #2a4a7f, #375590);
  color: #fff;
  padding: 18px 28px;
  border-radius: 8px;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.6;
  letter-spacing: 0.04em;
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.study-title-number {
  font-size: 22px;
  flex-shrink: 0;
}

.study-title-main {
  font-size: 18px;
}

@media (max-width: 768px) {
  .study-title-text {
    padding: 14px 20px;
    font-size: 15px;
  }

  .study-title-number {
    font-size: 18px;
  }

  .study-title-main {
    font-size: 15px;
  }
}

/* ---------- Preparing Badge ---------- */
.preparing {
  background: #f0f4fa;
  color: #375590;
  display: inline-block;
  padding: 8px 24px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  margin: 8px 0;
}

/* ---------- Info Card ---------- */
.info-card {
  background: #fff;
  border: 1px solid #e0e6f0;
  border-radius: 12px;
  padding: 24px;
  margin: 16px 0;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

/* ---------- Print ---------- */
@media print {
  .site-header,
  .scroll-top,
  .hamburger,
  .nav-drawer {
    display: none !important;
  }

  .page-content {
    padding: 0;
  }
}