:root {
  --color-brand: #165dff;
  --color-success: #00b42a;
  --color-danger: #f53f3f;
  --color-bg: #ffffff;
  --color-bg-soft: #f5f7fa;
  --color-text: #1d2129;
  --color-text-secondary: #666666;
  --color-border: #e5e6eb;
  --color-card: #ffffff;
  --color-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  --page-width: 1200px;
  --radius: 8px;
  --section-space: 60px;
  --font-family: Inter, -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
}

body[data-theme='dark'] {
  --color-bg: #121212;
  --color-bg-soft: #1a1a1a;
  --color-text: #ffffff;
  --color-text-secondary: #c9cdd4;
  --color-border: #2f3033;
  --color-card: #1e1e1e;
  --color-shadow: 0 2px 12px rgba(0, 0, 0, 0.18);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-family);
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
}

.page-orb {
  position: fixed;
  z-index: 0;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  filter: blur(96px);
  pointer-events: none;
  opacity: 0.14;
}

.page-orb-left {
  top: -100px;
  left: -120px;
  background: var(--color-brand);
}

.page-orb-right {
  top: 120px;
  right: -120px;
  background: #7bc0ff;
}

.container {
  position: relative;
  z-index: 1;
  width: min(calc(100% - 32px), var(--page-width));
  margin: 0 auto;
}

.section-spacing {
  padding-top: var(--section-space);
}

.hero-section.section-spacing,
.page-hero.section-spacing {
  padding-top: 44px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.9);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(10px);
}

body[data-theme='dark'] .site-header {
  background: rgba(18, 18, 18, 0.92);
}

.header-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand-logo {
  width: 40px;
  height: 40px;
  border-radius: 10px;
}

.brand-name {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-brand);
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-link {
  color: var(--color-text-secondary);
  transition: color 0.18s ease;
}

.nav-link:hover,
.nav-link-active {
  color: var(--color-brand);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-card);
  color: var(--color-text-secondary);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-card);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
}

.menu-toggle span {
  width: 18px;
  height: 2px;
  background: var(--color-text);
  border-radius: 999px;
}

.mobile-drawer {
  display: none;
}

.mobile-drawer-card {
  margin: 0 16px 16px;
  padding: 8px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-card);
  box-shadow: var(--color-shadow);
}

.mobile-link {
  display: block;
  padding: 12px 14px;
  border-radius: var(--radius);
  color: var(--color-text-secondary);
}

.mobile-link-active {
  background: rgba(22, 93, 255, 0.08);
  color: var(--color-brand);
}

.hero-section {
  overflow: hidden;
}

.hero-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.hero-kicker {
  margin: 0 0 16px;
  color: var(--color-brand);
  font-size: 14px;
  font-weight: 500;
}

.hero-copy h1,
.section-head h2,
.page-hero-card h1,
.content-card h2 {
  margin: 0;
  color: var(--color-text);
  line-height: 1.2;
  font-weight: 700;
}

.hero-copy h1 {
  font-size: 40px;
}

.hero-trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.hero-trust-item {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: rgba(22, 93, 255, 0.04);
  color: var(--color-text-secondary);
  font-size: 13px;
}

.hero-slogan {
  margin: 18px 0 0;
  color: var(--color-text-secondary);
  font-size: 18px;
  line-height: 1.6;
}

.hero-description,
.section-head p,
.feature-card p,
.trust-card p,
.shot-card strong,
.showcase-note,
.qr-item span,
.page-hero-card p,
.content-card p,
.footer-inner p {
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.page-hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 20px;
}

.page-hero-tags span {
  display: inline-flex;
  align-items: center;
  position: relative;
  min-height: 24px;
  padding: 0 0 0 16px;
  border: none;
  border-radius: 0;
  background: transparent;
  color: var(--color-text-secondary);
  font-size: 14px;
  font-weight: 500;
}

.page-hero-tags span::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-brand);
  transform: translateY(-50%);
}

.hero-description {
  margin: 12px 0 0;
  font-size: 16px;
}

.hero-actions,
.experience-actions,
.final-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-weight: 500;
}

.btn-primary {
  background: var(--color-brand);
  color: #ffffff;
}

.btn-secondary {
  background: var(--color-card);
  color: var(--color-brand);
  border-color: var(--color-brand);
}

.btn-wide {
  width: 100%;
}

.hero-side,
.experience-card,
.content-card,
.experience-layout,
.feature-card,
.trust-card,
.shot-card {
  background: var(--color-card);
}

.hero-side {
  padding: 24px;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  box-shadow: var(--color-shadow);
  background: linear-gradient(180deg, rgba(245, 247, 250, 0.66), rgba(255, 255, 255, 0.92));
}

.page-hero-card {
  padding: 18px 0 6px;
  min-height: 208px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: transparent;
  border: none;
  box-shadow: none;
}

.page-hero-card h1 {
  max-width: 920px;
}

.page-hero-card p {
  max-width: 920px;
}

.page-hero-card .page-hero-tags {
  max-width: 920px;
}

.page-hero-qr-card {
  width: 212px;
  padding: 18px;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  background: var(--color-card);
  box-shadow: var(--color-shadow);
  text-align: center;
}

.page-hero-qr-card strong {
  display: block;
  margin-top: 14px;
  color: var(--color-text);
}

.page-hero-qr {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  background: #ffffff;
}

body[data-theme='dark'] .hero-side {
  background: linear-gradient(180deg, rgba(30, 30, 30, 0.96), rgba(24, 24, 24, 0.96));
}

.qr-pair-card,
.experience-card,
.content-card,
.feature-card,
.trust-card,
.shot-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--color-shadow);
}

.qr-pair-card {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  padding: 0;
}

.qr-item {
  text-align: center;
  padding: 20px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-card);
}

.qr-item-hero {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  min-height: 100%;
}

.qr-item-topline {
  margin-bottom: 12px;
  color: var(--color-brand);
  font-size: 13px;
  font-weight: 600;
}

.qr-item strong {
  display: block;
  margin-top: 14px;
  color: var(--color-text);
}

.qr-image {
  display: block;
  width: 148px;
  height: 148px;
  margin: 0 auto;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  background: #ffffff;
}

.qr-item-large .qr-frame {
  width: 164px;
  height: 164px;
}

.qr-image-large {
  width: 164px;
  height: 164px;
}

.qr-frame {
  width: 148px;
  height: 148px;
  margin: 0 auto;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  background-color: #ffffff;
}

.h5-entry-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px;
  text-align: center;
  background: linear-gradient(180deg, rgba(22, 93, 255, 0.04), rgba(22, 93, 255, 0.01));
}

body[data-theme='dark'] .h5-entry-card {
  background: linear-gradient(180deg, rgba(22, 93, 255, 0.14), rgba(22, 93, 255, 0.04));
}

.h5-entry-card strong {
  margin: 0;
  color: var(--color-text);
}

.h5-entry-card span {
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.h5-entry-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 52px;
  height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  background: rgba(22, 93, 255, 0.12);
  color: var(--color-brand);
  font-size: 13px;
  font-weight: 600;
}

.btn-inline {
  min-height: 40px;
  padding: 0 16px;
}

.h5-entry-card-large {
  width: 164px;
  height: 164px;
}

.hero-side-note {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  color: var(--color-text-secondary);
  font-size: 14px;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.status-dot-success {
  background: var(--color-success);
}

.section-head {
  text-align: center;
  margin-bottom: 28px;
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}

.section-head-left {
  text-align: left;
  margin-left: 0;
  margin-right: 0;
}

.section-head h2 {
  font-size: 28px;
}

.section-head p {
  margin: 10px 0 0;
}

.feature-grid,
.trust-grid,
.shot-grid,
.content-grid-two {
  display: grid;
  gap: 20px;
}

.feature-grid-four,
.trust-grid-four {
  grid-template-columns: repeat(4, 1fr);
}

.feature-grid-two,
.content-grid-two {
  grid-template-columns: repeat(2, 1fr);
}

.feature-card,
.trust-card,
.shot-card,
.content-card {
  padding: 24px;
}

.content-card-wide {
  min-height: 100%;
}

.contact-card-main,
.contact-card-side {
  min-height: 100%;
}

.feedback-form {
  margin-top: 20px;
}

.feedback-field + .feedback-field {
  margin-top: 18px;
}

.feedback-label {
  display: block;
  margin-bottom: 10px;
  color: var(--color-text);
  font-weight: 600;
}

.feedback-type-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.feedback-type {
  min-height: 36px;
  padding: 0 14px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: var(--color-card);
  color: var(--color-text-secondary);
}

.feedback-type-active {
  color: var(--color-brand);
  border-color: rgba(22, 93, 255, 0.28);
  background: rgba(22, 93, 255, 0.08);
}

.feedback-textarea,
.feedback-input {
  width: 100%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-card);
  color: var(--color-text);
  padding: 14px 16px;
}

.feedback-textarea {
  min-height: 160px;
  resize: vertical;
}

.feedback-meta-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 10px;
}

.feedback-hint,
.feedback-count,
.feedback-status,
.contact-info-item span {
  color: var(--color-text-secondary);
  line-height: 1.5;
  font-size: 14px;
}

.feedback-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-top: 22px;
}

.feedback-status-success {
  color: var(--color-success);
}

.feedback-status-error {
  color: var(--color-danger);
}

.contact-info-list {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.contact-info-item {
  padding: 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: rgba(22, 93, 255, 0.03);
}

.contact-info-item strong {
  display: block;
  margin-bottom: 8px;
  color: var(--color-text);
}

.feature-icon-wrap,
.trust-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius);
  background: rgba(22, 93, 255, 0.08);
  color: var(--color-brand);
  font-size: 22px;
}

.feature-card h3,
.trust-card h3,
.shot-card strong {
  margin: 16px 0 0;
  color: var(--color-text);
}

.feature-card p,
.trust-card p {
  margin: 12px 0 0;
}

.product-showcase {
  background: var(--color-bg-soft);
}

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

.shot-card {
  text-align: center;
  padding: 20px;
  display: flex;
  flex-direction: column;
}

.shot-device {
  position: relative;
  padding: 14px;
  border-radius: 18px;
  background: linear-gradient(180deg, #f8fbff, #edf4ff);
  border: 1px solid rgba(22, 93, 255, 0.12);
}

body[data-theme='dark'] .shot-device {
  background: linear-gradient(180deg, #1b232f, #161d28);
  border-color: rgba(123, 192, 255, 0.14);
}

.shot-device-offset-top {
  transform: translateY(-8px);
}

.shot-image {
  display: block;
  width: 100%;
  aspect-ratio: 3 / 5.6;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid rgba(0, 0, 0, 0.06);
  background: var(--color-bg-soft);
}

.shot-caption {
  padding-top: 14px;
  border-top: 1px solid rgba(22, 93, 255, 0.08);
  margin-top: 16px;
}

.shot-caption strong {
  display: block;
  margin: 0;
}

.shot-caption span {
  display: block;
  margin-top: 8px;
  color: var(--color-text-secondary);
  line-height: 1.5;
  font-size: 14px;
}

.showcase-note {
  margin: 20px 0 0;
  text-align: center;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.experience-card {
  padding: 28px;
  background: var(--color-bg-soft);
}

.section-head-center {
  text-align: center;
}

.experience-layout {
  margin-top: 24px;
  padding: 0;
  border: none;
  box-shadow: none;
}

.footer-minimal {
  margin-top: 72px;
  border-top: 1px solid var(--color-border);
}

.footer-inner {
  padding: 28px 0 36px;
  text-align: center;
}

.footer-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 18px;
  margin-bottom: 12px;
}

.footer-inner p {
  margin: 8px 0 0;
}

.faq-card-solid h2 {
  font-size: 22px;
}

@media (max-width: 960px) {
  :root {
    --section-space: 40px;
  }

  .hero-section.section-spacing,
  .page-hero.section-spacing {
    padding-top: 32px;
  }

  .desktop-nav {
    display: none;
  }

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

  .mobile-drawer {
    display: none;
  }

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

  .hero-layout,
  .feature-grid-four,
  .trust-grid-four,
  .shot-grid,
  .feature-grid-two,
  .content-grid-two {
    grid-template-columns: repeat(2, 1fr);
  }

  .shot-device-offset-top {
    transform: none;
  }

  .hero-layout {
    align-items: start;
  }
}

@media (max-width: 768px) {
  .container {
    width: min(calc(100% - 24px), var(--page-width));
  }

  .header-inner {
    min-height: 68px;
  }

  .theme-toggle {
    display: none;
  }

  .hero-layout,
  .feature-grid-four,
  .trust-grid-four,
  .shot-grid,
  .feature-grid-two,
  .content-grid-two,
  .qr-pair-card {
    grid-template-columns: 1fr;
  }

  .hero-side {
    padding: 20px;
  }

  .page-hero-qr-card {
    width: 100%;
    max-width: 320px;
  }

  .section-head {
    max-width: none;
  }

  .hero-copy h1 {
    font-size: 28px;
  }

  .hero-slogan {
    font-size: 16px;
  }

  .section-head h2,
  .page-hero-card h1,
  .content-card h2 {
    font-size: 22px;
  }

  .feature-card,
  .trust-card,
  .shot-card,
  .content-card,
  .page-hero-card,
  .experience-card {
    padding: 20px;
  }

  .page-hero-card {
    min-height: auto;
  }

  .page-hero-card h1,
  .page-hero-card p {
    max-width: none;
  }

  .qr-frame {
    width: 176px;
    height: 176px;
  }

  .qr-image {
    width: 176px;
    height: 176px;
  }

  .h5-entry-card-large {
    width: 176px;
    height: 176px;
  }

  .btn,
  .hero-actions .btn,
  .experience-actions .btn,
  .final-cta-actions .btn {
    width: min(100%, 320px);
  }

  .footer-minimal {
    margin-top: 48px;
  }
}