.page-products {
  --hero-deco: rgba(212, 175, 55, 0.1);
  --card-border: rgba(255, 255, 255, 0.08);
  background: #0A0A0A;
  color: #FFFFFF;
  font-family: var(--font-body);
}

.page-products img {
  max-width: 100%;
  height: auto;
}

.page-products .container {
  position: relative;
  z-index: 1;
}

.products-hero {
  background: var(--grad-night);
  padding: calc(var(--space-8) + 2rem) 0 var(--space-7);
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--c-line);
}

.products-hero::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -60px;
  width: 320px;
  height: 320px;
  background: var(--grad-gold);
  opacity: 0.1;
  transform: rotate(30deg);
  pointer-events: none;
}

.products-hero::after {
  content: "";
  position: absolute;
  left: -80px;
  bottom: -100px;
  width: 260px;
  height: 260px;
  border: 1px solid rgba(212, 175, 55, 0.25);
  transform: rotate(45deg);
  pointer-events: none;
}

.products-hero .breadcrumb {
  position: absolute;
  top: 2rem;
  left: 1.25rem;
  right: 1.25rem;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.55);
}

.products-hero .breadcrumb a {
  color: rgba(255, 255, 255, 0.75);
  text-decoration: none;
  transition: color 300ms var(--ease);
}

.products-hero .breadcrumb a:hover {
  color: var(--c-gold-bright);
}

.products-hero .breadcrumb-sep {
  margin: 0 0.5rem;
  color: rgba(255, 255, 255, 0.3);
}

.hero-layout {
  display: grid;
  gap: var(--space-7);
  padding-top: var(--space-6);
}

.hero-copy {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-5);
}

.hero-copy .page-title {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 8vw, 5.2rem);
  line-height: 0.95;
  letter-spacing: -0.02em;
  margin: 0;
  text-transform: uppercase;
  background: var(--grad-gold);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-lead {
  font-size: 1.05rem;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.82);
  max-width: 42rem;
  margin: 0;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.hero-actions .btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.hero-cap {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
  letter-spacing: 0.06em;
  margin: 0;
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 260px;
}

.app-icon {
  width: 180px;
  height: 180px;
  border-radius: 24px;
  object-fit: cover;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5);
  position: relative;
  z-index: 2;
}

.hero-visual-ring {
  position: absolute;
  width: 220px;
  height: 220px;
  border: 1px dashed rgba(212, 175, 55, 0.5);
  border-radius: 50%;
  animation: koko-pulse 3s ease-in-out infinite;
  z-index: 1;
}

@keyframes koko-pulse {
  0%, 100% { transform: scale(1); opacity: 0.6; }
  50% { transform: scale(1.08); opacity: 1; }
}

.hero-visual-corner {
  position: absolute;
  bottom: 0;
  right: 0;
  font-family: var(--font-display);
  font-size: 0.8rem;
  line-height: 1.15;
  color: rgba(255, 255, 255, 0.28);
  text-align: right;
  letter-spacing: 0.3em;
  z-index: 3;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-5);
  margin-top: var(--space-7);
  padding: var(--space-6);
  border: 1px solid var(--card-border);
  background: rgba(255, 255, 255, 0.04);
  border-radius: var(--radius-soft);
}

.hero-stat {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  text-align: center;
}

.hero-stat .stat-num {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1;
  color: var(--c-gold-bright);
}

.hero-stat .stat-label {
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.6);
  text-transform: uppercase;
}

.device-section,
.req-section,
.download-section {
  background: #0A0A0A;
  padding: var(--space-8) 0;
}

.login-section,
.changelog-section {
  background: var(--grad-night);
  padding: var(--space-8) 0;
}

.account-section {
  background: #10151F;
  padding: var(--space-8) 0;
  position: relative;
}

.account-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 10%;
  right: 10%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(212, 175, 55, 0.5), transparent);
}

.section-head {
  margin-bottom: var(--space-7);
}

.os-tabs {
  position: relative;
}

.os-input {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
  pointer-events: none;
}

.os-tab-bar {
  display: flex;
  gap: 0.5rem;
  margin-bottom: var(--space-6);
  padding: 0.4rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-pill);
  width: fit-content;
  max-width: 100%;
  overflow-x: auto;
  scrollbar-width: none;
}

.os-tab-bar::-webkit-scrollbar {
  display: none;
}

.os-tab-label {
  padding: 0.6rem 1.4rem;
  border-radius: var(--radius-pill);
  font-family: var(--font-title);
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.6);
  cursor: pointer;
  white-space: nowrap;
  transition: background 300ms var(--ease), color 300ms var(--ease), transform 300ms var(--ease);
}

.os-tab-label:hover {
  color: rgba(255, 255, 255, 0.9);
}

.page-products #os-ios:checked ~ .os-tab-bar label[for="os-ios"],
.page-products #os-android:checked ~ .os-tab-bar label[for="os-android"],
.page-products #os-pc:checked ~ .os-tab-bar label[for="os-pc"] {
  background: var(--grad-gold);
  color: #0A0A0A;
  font-weight: 700;
}

.page-products .os-input:focus-visible ~ .os-tab-bar label {
  outline: 2px solid var(--c-gold);
  outline-offset: 2px;
}

.os-panel {
  display: none;
}

.page-products #os-ios:checked ~ .os-panels .panel-ios,
.page-products #os-android:checked ~ .os-panels .panel-android,
.page-products #os-pc:checked ~ .os-panels .panel-pc {
  display: block;
}

.os-layout {
  display: grid;
  gap: var(--space-7);
  align-items: center;
}

.phone-wrap {
  display: flex;
  justify-content: center;
  padding: var(--space-5);
}

.phone-frame {
  width: 250px;
  height: 520px;
  background: #000;
  border: 6px solid #2E2E2E;
  border-radius: 2.2rem;
  position: relative;
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.55);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 42px 0 0;
}

.phone-frame::after {
  content: "";
  position: absolute;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  width: 110px;
  height: 4px;
  background: #2E2E2E;
  border-radius: 999px;
}

.phone-speaker {
  position: absolute;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  width: 70px;
  height: 16px;
  background: #1A1A1A;
  border-radius: 999px;
  z-index: 5;
  display: block;
}

.phone-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: 1.5rem 1.5rem 0 0;
}

.phone-frame--android {
  border-radius: 1.6rem;
  border-width: 5px;
}

.phone-frame--android::after {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: transparent;
  border: 3px solid #2E2E2E;
}

.os-info {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-4);
}

.os-info h3 {
  font-family: var(--font-title);
  font-size: 1.55rem;
  line-height: 1.2;
  margin: 0;
}

.os-info p {
  font-size: 1rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.72);
  margin: 0;
}

.feature-list {
  display: grid;
  gap: 0.6rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.feature-list li {
  position: relative;
  padding-left: 1.4rem;
  font-size: 0.95rem;
  line-height: 1.55;
  color: rgba(255, 255, 255, 0.86);
}

.feature-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 8px;
  height: 8px;
  background: var(--grad-gold);
  transform: rotate(45deg);
}

.os-download-row {
  margin-top: var(--space-3);
}

.os-download-row .btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.pc-window-wrap {
  display: flex;
  justify-content: center;
  padding: var(--space-5);
}

.pc-window {
  width: 100%;
  max-width: 460px;
  background: #0D1117;
  border: 1px solid #2E2E2E;
  border-radius: 0.75rem;
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5);
}

.pc-titlebar {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.7rem 1rem;
  background: #161B22;
  border-bottom: 1px solid #2E2E2E;
}

.pc-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: block;
}

.pc-dot--red { background: #E63946; }
.pc-dot--gold { background: #D4AF37; }
.pc-dot--green { background: #2A9D8F; }

.pc-body {
  display: grid;
  grid-template-columns: 90px 1fr;
  height: 310px;
}

.pc-sidebar {
  background: #111;
  border-right: 1px solid #2E2E2E;
  padding: 1rem 0.6rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.pc-sidebar-item {
  height: 20px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 4px;
  display: block;
}

.pc-main {
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.pc-row {
  height: 14px;
  background: rgba(255, 255, 255, 0.07);
  border-radius: 4px;
}

.pc-row--title {
  width: 60%;
  height: 22px;
  background: rgba(212, 175, 55, 0.3);
}

.pc-row--highlight {
  width: 90%;
  background: rgba(27, 58, 140, 0.5);
}

.login-layout {
  display: grid;
  gap: var(--space-7);
  align-items: center;
}

.login-steps {
  display: grid;
  gap: var(--space-5);
}

.step-item {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: var(--space-5);
  align-items: start;
  padding: var(--space-5);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-soft);
  transition: border-color 300ms var(--ease), background 300ms var(--ease);
}

.step-item:hover {
  border-color: rgba(212, 175, 55, 0.4);
  background: rgba(255, 255, 255, 0.06);
}

.step-num {
  font-family: var(--font-display);
  font-size: 2rem;
  line-height: 1;
  color: var(--c-gold-bright);
  background: var(--grad-gold);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  display: block;
  width: 56px;
}

.step-copy h3 {
  font-family: var(--font-title);
  font-size: 1.15rem;
  margin: 0 0 0.4rem;
}

.step-copy p {
  font-size: 0.95rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.7);
  margin: 0;
}

.login-tip {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-5);
  background: rgba(42, 157, 143, 0.1);
  border: 1px solid rgba(42, 157, 143, 0.35);
  border-radius: var(--radius-soft);
}

.login-tip p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.82);
}

.login-visual {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.login-visual img {
  border-radius: var(--radius-soft);
  border: 1px solid var(--card-border);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
  width: 100%;
  height: auto;
  object-fit: cover;
}

.visual-caption {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
  text-align: center;
  letter-spacing: 0.04em;
}

.account-card {
  display: grid;
  gap: var(--space-7);
  align-items: center;
  background: linear-gradient(135deg, #0D1B2A, #1B263B);
  border: 1px solid rgba(212, 175, 55, 0.22);
  border-radius: 1rem;
  padding: var(--space-7);
  position: relative;
  overflow: hidden;
}

.account-card::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 180px;
  height: 180px;
  background: var(--grad-gold);
  opacity: 0.06;
  clip-path: polygon(0 0, 100% 0, 100% 100%);
}

.account-card-copy {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-4);
  position: relative;
  z-index: 1;
}

.account-card-copy .section-title {
  margin: 0;
}

.account-lead {
  font-size: 1.05rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.85);
  margin: 0;
}

.account-list {
  display: grid;
  gap: 0.6rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.account-list li {
  position: relative;
  padding-left: 1.5rem;
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.78);
  line-height: 1.55;
}

.account-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--c-green);
  font-weight: 700;
}

.account-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.account-card-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.account-card-visual img {
  width: 240px;
  height: 240px;
  object-fit: cover;
  border-radius: 1.5rem;
  border: 1px solid rgba(212, 175, 55, 0.3);
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.5);
}

.shield-badge {
  position: absolute;
  bottom: 12px;
  left: 12px;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  background: #0A0A0A;
  border: 1px solid rgba(212, 175, 55, 0.4);
  border-radius: 0.7rem;
  padding: 0.6rem 0.9rem;
  font-family: var(--font-title);
  font-size: 0.8rem;
  color: var(--c-gold-bright);
  line-height: 1.2;
}

.shield-badge span:last-child {
  font-family: var(--font-body);
  font-size: 0.7rem;
  color: rgba(255, 255, 255, 0.6);
}

.req-grid {
  display: grid;
  gap: var(--space-5);
}

.req-card {
  background: #121212;
  border: 1px solid var(--card-border);
  border-radius: var(--radius-soft);
  padding: var(--space-6);
  transition: border-color 300ms var(--ease), transform 300ms var(--ease);
}

.req-card:hover {
  border-color: rgba(212, 175, 55, 0.4);
  transform: translateY(-4px);
}

.req-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--grad-gold);
  border-radius: 12px;
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: #0A0A0A;
  font-weight: 700;
  margin-bottom: var(--space-4);
}

.req-card h3 {
  font-family: var(--font-title);
  font-size: 1.3rem;
  margin: 0 0 var(--space-4);
}

.req-card ul {
  display: grid;
  gap: 0.55rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.req-card li {
  position: relative;
  padding-left: 1.2rem;
  font-size: 0.92rem;
  color: rgba(255, 255, 255, 0.72);
  line-height: 1.5;
}

.req-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  background: var(--c-brand-light);
  border-radius: 50%;
}

.req-note {
  margin-top: var(--space-6);
  padding: var(--space-5);
  background: rgba(255, 255, 255, 0.04);
  border-left: 3px solid var(--c-gold);
  font-size: 0.92rem;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.72);
  border-radius: 0 var(--radius-soft) var(--radius-soft) 0;
}

.page-products .accordion {
  display: grid;
  gap: var(--space-4);
}

.page-products .acc-item {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-soft);
  overflow: hidden;
  transition: border-color 300ms var(--ease);
}

.page-products .acc-item:hover {
  border-color: rgba(212, 175, 55, 0.3);
}

.page-products .acc-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--space-5);
  background: transparent;
  border: none;
  color: #FFFFFF;
  font-family: var(--font-title);
  font-size: 1.08rem;
  cursor: pointer;
  text-align: left;
  transition: color 300ms var(--ease);
}

.page-products .acc-btn:hover {
  color: var(--c-gold-bright);
}

.page-products .acc-title {
  line-height: 1.4;
}

.page-products .acc-icon {
  font-size: 1.5rem;
  color: var(--c-gold);
  flex-shrink: 0;
  margin-left: var(--space-4);
  transition: transform 300ms var(--ease);
}

.page-products .acc-panel-inner {
  padding: 0 var(--space-5) var(--space-5);
}

.page-products .acc-panel-inner ul {
  display: grid;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .acc-panel-inner li {
  position: relative;
  padding-left: 1.2rem;
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.72);
  line-height: 1.55;
}

.page-products .acc-panel-inner li::before {
  content: "▹";
  position: absolute;
  left: 0;
  color: var(--c-gold);
}

.download-section {
  background: linear-gradient(135deg, #0D1B2A, #1B263B);
}

.download-card {
  display: grid;
  gap: var(--space-7);
  align-items: center;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(212, 175, 55, 0.3);
  border-radius: 1rem;
  padding: var(--space-7);
}

.download-card-main {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-4);
}

.download-card-main .section-title {
  margin: 0;
}

.download-card-main p {
  font-size: 1rem;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.75);
  margin: 0;
}

.download-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.download-qr {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
}

.download-qr img {
  width: 180px;
  height: 180px;
  object-fit: cover;
  border-radius: 0.75rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: #FFFFFF;
  padding: 0.5rem;
  transition: transform 300ms var(--ease), box-shadow 300ms var(--ease);
}

.download-qr:hover img,
.download-qr:focus-within img {
  transform: scale(1.05);
  box-shadow: 0 16px 40px rgba(212, 175, 55, 0.25);
}

.download-qr p {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
  margin: 0;
}

@media (min-width: 640px) {
  .hero-stats {
    grid-template-columns: repeat(4, 1fr);
  }

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

  .account-card {
    grid-template-columns: 1fr 260px;
  }

  .download-card {
    grid-template-columns: 1fr 220px;
  }

  .os-layout {
    grid-template-columns: 300px 1fr;
  }

  .panel-pc .os-layout {
    grid-template-columns: 460px 1fr;
  }
}

@media (min-width: 900px) {
  .products-hero {
    padding-top: calc(var(--space-8) + 4rem);
  }

  .hero-layout {
    grid-template-columns: 1fr 340px;
    gap: var(--space-8);
    padding-top: var(--space-6);
  }

  .hero-visual {
    min-height: 320px;
  }

  .app-icon {
    width: 220px;
    height: 220px;
  }

  .hero-visual-ring {
    width: 270px;
    height: 270px;
  }

  .login-layout {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
  }

  .login-steps {
    gap: var(--space-5);
  }

  .download-card {
    padding: var(--space-8);
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero-visual-ring,
  .req-card,
  .download-qr img {
    animation: none !important;
    transition: none !important;
  }
}