:root {
  --theme: #44acf8;
  --theme-dark: #0b71ba;
  --theme-deep: #05375f;
  --theme-light: #edf8ff;
  --theme-soft: #d6efff;
  --theme-accent: #84c8ff;
  --theme-hover: #168ad6;
  --theme-border: rgba(68, 172, 248, .34);
  --header-bg: #05375f;
  --header-bg-2: #0b6aa8;
  --text-main: #0e2433;
  --text-muted: #4f6572;
  --on-theme: #041927;
  --on-header: #edf8ff;
  --on-dark: #edf8ff;
  --white: #ffffff;
  --shadow-soft: 0 18px 48px rgba(5, 55, 95, .18);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  overflow-x: hidden;
  overflow-y: auto;
}

body {
  background:
    radial-gradient(circle at 8% 2%, rgba(68, 172, 248, .20), transparent 28%),
    var(--theme-light);
  color: var(--text-main);
  font-family: Arial, Helvetica, sans-serif;
}

img {
  max-width: 100%;
}

a {
  color: var(--theme-dark);
}

.container,
.section-inner,
.header-inner,
.footer-inner,
.hero-inner {
  width: min(1280px, calc(100% - 80px));
  margin-left: auto;
  margin-right: auto;
}

@media (min-width: 1440px) {
  .container,
  .section-inner,
  .header-inner,
  .footer-inner,
  .hero-inner {
    width: min(1360px, calc(100% - 120px));
  }
}

@media (max-width: 767px) {
  .container,
  .section-inner,
  .header-inner,
  .footer-inner,
  .hero-inner {
    width: min(100% - 32px, 1280px);
  }
}

.site-header {
  position: sticky;
  top: 0;
  width: 100%;
  z-index: 9999;
  background: linear-gradient(180deg, var(--header-bg) 0%, var(--header-bg-2) 100%);
  color: var(--on-header);
  box-shadow: var(--shadow-soft);
  border-bottom: 1px solid rgba(255,255,255,.22);
  overflow: visible;
}

.header-inner {
  min-height: 82px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  overflow: visible;
}

.site-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  overflow: visible;
}

.site-logo img {
  display: block;
  width: auto;
  height: auto;
  max-width: 190px;
  max-height: 72px;
  object-fit: contain;
}

.main-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 18px;
}

.main-nav a {
  color: var(--on-header);
  text-decoration: none;
  white-space: nowrap;
  font-weight: 700;
  font-size: 14px;
  padding: 28px 0 24px;
  border-bottom: 3px solid transparent;
}

.main-nav a.active,
.main-nav a:hover {
  color: #edf3ff;
  border-bottom-color: var(--theme-accent);
}

.header-actions {
  display: flex;
  justify-content: flex-end;
}

.main-btn,
.header-login,
.cta-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(180deg, var(--theme-accent) 0%, var(--theme) 48%, var(--theme-dark) 100%);
  color: var(--on-theme);
  border-radius: 999px;
  box-shadow: 0 14px 28px rgba(5, 55, 95, .22);
  text-decoration: none;
  white-space: nowrap;
  border: 0;
  font-weight: 800;
  padding: 12px 20px;
}

.main-btn:hover,
.cta-link:hover {
  background: linear-gradient(180deg, var(--theme-accent) 0%, var(--theme-hover) 48%, var(--theme-deep) 100%);
  color: var(--on-theme);
  transform: translateY(-1px);
}

.mobile-menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  width: 44px;
  height: 44px;
  gap: 5px;
  border: 1px solid rgba(255,255,255,.34);
  background: rgba(255,255,255,.12);
  border-radius: 14px;
  color: var(--on-header);
}

.mobile-menu-toggle span {
  width: 20px;
  height: 2px;
  background: var(--on-header);
  border-radius: 999px;
}

.mobile-drawer {
  position: fixed;
  top: 0;
  left: 0;
  width: 82%;
  max-width: 320px;
  height: 100vh;
  transform: translateX(-100%);
  transition: transform .28s ease;
  z-index: 10001;
  background: linear-gradient(180deg, var(--header-bg) 0%, var(--theme-deep) 100%);
  color: var(--on-header);
  padding: 20px;
  box-shadow: 24px 0 60px rgba(0,0,0,.22);
}

.mobile-drawer.is-open {
  transform: translateX(0);
}

.drawer-overlay {
  position: fixed;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  z-index: 10000;
  background: rgba(5, 55, 95, .52);
  transition: opacity .25s ease, visibility .25s ease;
}

.drawer-overlay.is-open {
  opacity: 1;
  visibility: visible;
}

body.menu-open {
  overflow: hidden;
}

.drawer-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(255,255,255,.22);
}

.drawer-head img {
  max-width: 148px;
  max-height: 56px;
  object-fit: contain;
}

.drawer-close {
  width: 40px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.28);
  background: rgba(255,255,255,.12);
  color: var(--on-header);
  font-size: 28px;
  line-height: 1;
}

.drawer-nav {
  display: grid;
  gap: 10px;
  padding-top: 18px;
}

.drawer-nav a {
  color: var(--on-header);
  text-decoration: none;
  border: 1px solid rgba(255,255,255,.16);
  background: rgba(255,255,255,.08);
  padding: 12px 14px;
  border-radius: 16px;
  font-weight: 700;
}

.drawer-nav a.active {
  background: var(--theme-accent);
  color: var(--theme-deep);
}

.section {
  padding: 72px 0;
}

.section-heading {
  display: grid;
  gap: 14px;
  margin-bottom: 30px;
}

.section-heading.center {
  text-align: center;
  justify-items: center;
}

.section-heading .eyebrow,
.eyebrow,
.hero-badge,
.hero-tags span,
.badge,
.tag {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 9px 15px;
  background: var(--theme-soft);
  color: var(--theme-dark);
  border: 1px solid var(--theme-border);
  font-weight: 800;
  width: fit-content;
}

.section-heading h2,
.content-block h2,
.page-section h2 {
  color: var(--theme-dark);
  font-size: clamp(28px, 3vw, 42px);
  margin: 0;
  line-height: 1.18;
}

.section-heading p {
  max-width: 860px;
  margin: 0;
  color: var(--text-muted);
  line-height: 1.75;
  font-size: 17px;
}

.hero-section {
  padding: 70px 0 42px;
  background:
    radial-gradient(circle at 15% 20%, rgba(68, 172, 248, .22) 0%, transparent 34%),
    linear-gradient(180deg, var(--theme-light) 0%, var(--white) 100%);
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, 0.95fr);
  align-items: center;
  gap: 56px;
}

.hero-content h1 {
  font-size: clamp(42px, 4.2vw, 64px);
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin: 0 0 22px;
  color: var(--theme-dark);
}

.hero-content p {
  max-width: 760px;
  font-size: 18px;
  line-height: 1.8;
  color: var(--text-main);
  margin: 0 0 26px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-visual,
.media-box,
.app-visual,
.card-media {
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: visible;
}

.hero-media-box {
  width: min(100%, 540px);
  min-height: 320px;
  max-height: 420px;
  padding: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: visible;
  border-radius: 34px;
  background: linear-gradient(180deg, var(--white) 0%, var(--theme-soft) 100%);
  border: 1px solid var(--theme-border);
  box-shadow: var(--shadow-soft);
}

.hero-media-box img,
.media-box img,
.app-visual img,
.card-media img,
.hero-visual img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  opacity: 1;
}

.hero-media-box img {
  max-height: 340px;
}

.info-section {
  padding: 32px 0 48px;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 22px;
}

.info-card,
.card,
.zone-card,
.feature-card,
.category-card,
.faq-item,
.notice,
.visual-card,
.feedback-card,
.topic-card {
  background: var(--white);
  color: var(--text-main);
  border: 1px solid var(--theme-border);
  box-shadow: var(--shadow-soft);
  border-radius: 24px;
  min-height: auto;
  height: auto;
  padding: 28px;
}

.info-card::before,
.category-card::before,
.feature-card::before,
.topic-card::before,
.faq-item::before {
  content: "";
  display: block;
  width: 52px;
  height: 4px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--theme), var(--theme-accent));
  margin-bottom: 16px;
}

.info-card span,
.card-number,
.step-number {
  color: var(--theme);
  font-weight: 900;
  font-size: 18px;
}

.info-card h2,
.category-card h3,
.feature-card h3,
.topic-card h3,
.faq-item h3 {
  color: var(--theme-dark);
  margin: 10px 0 12px;
  line-height: 1.25;
}

.info-card p,
.category-card p,
.feature-card p,
.topic-card p,
.faq-item p,
.feedback-card p,
.content-block p,
.page-section p,
.notice p,
.footer p,
li {
  color: var(--text-muted);
  line-height: 1.75;
}

.grid-2,
.grid-3,
.grid-4,
.category-grid,
.feature-grid,
.topic-grid,
.faq-grid,
.feedback-grid,
.related-grid {
  display: grid;
  gap: 22px;
}

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

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

.grid-4,
.category-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.category-section {
  padding: 16px 0 56px;
}

.category-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

.category-pills a {
  background: var(--white);
  color: var(--theme-dark);
  border: 1px solid var(--theme-border);
  border-radius: 999px;
  padding: 12px 18px;
  text-decoration: none;
  font-weight: 800;
}

.category-pills a:hover {
  background: linear-gradient(180deg, var(--theme-accent), var(--theme));
  color: var(--on-theme);
}

.category-card {
  display: flex;
  flex-direction: column;
}

.category-card a,
.text-link {
  margin-top: auto;
  color: var(--theme-dark);
  text-decoration: none;
  font-weight: 800;
}

.split-section {
  background: linear-gradient(180deg, var(--white) 0%, var(--theme-light) 100%);
}

.split-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, .78fr);
  gap: 42px;
  align-items: center;
}

.split-row.reverse {
  grid-template-columns: minmax(340px, .78fr) minmax(0, 1fr);
}

.split-row.reverse .visual-card {
  order: -1;
}

.visual-card {
  min-height: 300px;
}

.visual-card img {
  max-height: 260px;
  object-fit: contain;
}

.service-list,
.check-list,
.clean-list {
  display: grid;
  gap: 14px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.service-list li,
.check-list li,
.clean-list li {
  position: relative;
  padding-left: 30px;
}

.service-list li::before,
.check-list li::before,
.clean-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--theme);
  box-shadow: 0 0 0 6px var(--theme-soft);
}

.app-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, .95fr);
  gap: 36px;
  align-items: center;
  border-radius: 34px;
  padding: 36px;
  background: linear-gradient(135deg, var(--theme-deep) 0%, var(--theme-dark) 52%, var(--theme) 100%);
  color: var(--on-dark);
  box-shadow: var(--shadow-soft);
}

.app-panel h2,
.app-panel p,
.app-panel li {
  color: var(--on-dark);
}

.app-panel .app-visual {
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.24);
  border-radius: 28px;
  min-height: 300px;
  padding: 24px;
}

.app-panel img {
  max-height: 280px;
}

.notice {
  background: linear-gradient(180deg, var(--theme-soft) 0%, var(--white) 100%);
}

.notice h2,
.notice h3 {
  color: var(--theme-dark);
}

.page-hero {
  padding: 64px 0 46px;
  background:
    radial-gradient(circle at 85% 8%, rgba(35,70,160,.16), transparent 30%),
    linear-gradient(180deg, var(--theme-light) 0%, var(--white) 100%);
}

.page-hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, .72fr);
  gap: 40px;
  align-items: center;
}

.page-hero h1 {
  color: var(--theme-dark);
  font-size: clamp(38px, 4vw, 60px);
  line-height: 1.08;
  margin: 16px 0 18px;
}

.page-hero p {
  font-size: 18px;
  line-height: 1.78;
  color: var(--text-main);
  margin: 0;
}

.page-visual {
  min-height: 300px;
  border-radius: 30px;
  background: linear-gradient(180deg, var(--white), var(--theme-soft));
  border: 1px solid var(--theme-border);
  box-shadow: var(--shadow-soft);
  padding: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-visual img {
  max-height: 260px;
  width: auto;
  height: auto;
  object-fit: contain;
}

.feedback-card {
  background: linear-gradient(180deg, var(--white) 0%, #f7f9ff 100%);
}

.feedback-card strong {
  color: var(--theme-dark);
}

.related-grid a {
  text-decoration: none;
  padding: 18px 20px;
  border-radius: 18px;
  background: var(--white);
  border: 1px solid var(--theme-border);
  font-weight: 800;
  color: var(--theme-dark);
  box-shadow: var(--shadow-soft);
}

.footer {
  background: linear-gradient(180deg, var(--theme-dark) 0%, var(--theme-deep) 100%);
  color: var(--on-dark);
  padding: 58px 0 44px;
}

.footer-inner {
  display: grid;
  grid-template-columns: minmax(260px, .95fr) minmax(320px, 1.1fr) minmax(280px, .95fr);
  gap: 34px;
  align-items: start;
}

.footer img {
  max-width: 190px;
  max-height: 72px;
  object-fit: contain;
}

.footer h2 {
  color: var(--on-dark);
  margin: 0 0 16px;
}

.footer p {
  color: rgba(238,243,255,.88);
}

.footer-link-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 16px;
}

.footer a {
  color: var(--on-dark);
  text-decoration: none;
}

.footer a:hover {
  color: #edf3ff;
}

.footer-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.footer-badges span {
  border: 1px solid rgba(255,255,255,.26);
  background: rgba(255,255,255,.1);
  color: var(--on-dark);
  border-radius: 999px;
  padding: 8px 12px;
  font-weight: 800;
}

@media (min-width: 1440px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(480px, .95fr);
    gap: 72px;
  }
  .hero-media-box {
    max-width: 560px;
    min-height: 360px;
  }
}

@media (max-width: 1180px) {
  .main-nav {
    gap: 12px;
  }
  .main-nav a {
    font-size: 13px;
  }
  .category-grid,
  .grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 1023px) {
  .header-inner {
    width: min(100% - 28px, 1280px);
    min-height: 68px;
    display: grid;
    grid-template-columns: 48px minmax(0, 1fr) auto;
    gap: 10px;
  }

  .mobile-menu-toggle {
    display: inline-flex;
  }

  .main-nav {
    display: none;
  }

  .site-logo {
    justify-self: center;
  }

  .site-logo img {
    max-width: min(150px, 42vw);
    max-height: 56px;
  }

  .header-actions {
    justify-self: end;
  }

  .header-actions .main-btn {
    white-space: nowrap;
    padding: 10px 16px;
  }

  .hero-section {
    padding: 48px 0 36px;
  }

  .hero-inner,
  .page-hero-inner,
  .split-row,
  .split-row.reverse,
  .app-panel {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .split-row.reverse .visual-card {
    order: 0;
  }

  .hero-content h1 {
    font-size: clamp(36px, 9vw, 52px);
  }

  .hero-media-box,
  .page-visual {
    max-width: 100%;
    min-height: auto;
    padding: 24px;
  }

  .hero-media-box img,
  .page-visual img {
    max-height: 300px;
  }

  .info-grid,
  .grid-3,
  .feedback-grid,
  .topic-grid,
  .faq-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 767px) {
  .section {
    padding: 50px 0;
  }

  .info-grid,
  .grid-2,
  .grid-3,
  .grid-4,
  .category-grid,
  .feature-grid,
  .topic-grid,
  .faq-grid,
  .feedback-grid,
  .related-grid {
    grid-template-columns: 1fr;
  }

  .card,
  .zone-card,
  .info-card,
  .feature-card,
  .category-card,
  .faq-item,
  .notice,
  .visual-card,
  .feedback-card,
  .topic-card {
    padding: 22px;
  }

  .app-panel {
    padding: 24px;
  }

  .footer-link-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 390px) {
  .header-inner {
    width: min(100% - 20px, 1280px);
    grid-template-columns: 44px minmax(0, 1fr) auto;
    gap: 8px;
  }

  .site-logo img {
    max-width: min(120px, 36vw);
    max-height: 48px;
  }

  .header-actions .main-btn {
    padding: 8px 12px;
    font-size: 13px;
  }
}