body.qifeng-premium-v4 {
  --qf-v4-bg: #e9eef2;
  --qf-v4-surface: rgba(255, 255, 255, 0.86);
  --qf-v4-surface-strong: #ffffff;
  --qf-v4-surface-dark: rgba(12, 21, 34, 0.92);
  --qf-v4-ink: #102132;
  --qf-v4-muted: #596777;
  --qf-v4-line: rgba(16, 33, 50, 0.11);
  --qf-v4-line-strong: rgba(16, 33, 50, 0.18);
  --qf-v4-brand: #0f5f70;
  --qf-v4-brand-deep: #0a2d38;
  --qf-v4-accent: #b36a34;
  --qf-v4-warm: #f4efe7;
  --qf-v4-shadow: 0 20px 70px rgba(14, 28, 44, 0.12);
  --qf-v4-shadow-strong: 0 36px 120px rgba(10, 23, 36, 0.18);
  --qf-v4-radius: 28px;
  background:
    radial-gradient(circle at top right, rgba(15, 95, 112, 0.12), transparent 28%),
    radial-gradient(circle at top left, rgba(179, 106, 52, 0.08), transparent 22%),
    linear-gradient(180deg, #f4f7f8 0%, #e3eaef 100%);
  color: var(--qf-v4-ink);
}

body.qifeng-premium-v4 .container {
  width: min(1240px, calc(100% - 40px));
}

body.qifeng-premium-v4 .site-main {
  padding-bottom: 96px;
}

body.qifeng-premium-v4 .content-section,
body.qifeng-premium-v4 .cta-band,
body.qifeng-premium-v4 .stats-band,
body.qifeng-premium-v4 .page-hero {
  padding: 84px 0;
}

body.qifeng-premium-v4 .qf-card,
body.qifeng-premium-v4 .content-card,
body.qifeng-premium-v4 .category-card,
body.qifeng-premium-v4 .detail-card,
body.qifeng-premium-v4 .contact-card,
body.qifeng-premium-v4 .form-shell {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(248, 250, 252, 0.88));
  border: 1px solid rgba(255, 255, 255, 0.78);
  border-radius: var(--qf-v4-radius);
  box-shadow: var(--qf-v4-shadow);
}

body.qifeng-premium-v4 .section-heading h2,
body.qifeng-premium-v4 .site-footer h2,
body.qifeng-premium-v4 .qf-footer-brand h3,
body.qifeng-premium-v4 .qf-hero-capability h2 {
  font-family: "Barlow", "Segoe UI", sans-serif;
  line-height: 0.98;
  letter-spacing: 0.01em;
}

body.qifeng-premium-v4 .eyebrow,
body.qifeng-premium-v4 .brand-mark__eyebrow {
  letter-spacing: 0.16em;
  color: var(--qf-v4-brand);
}

body.qifeng-premium-v4 .button {
  border-radius: 999px;
  padding: 15px 24px;
  font-weight: 700;
  letter-spacing: 0.01em;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.22), 0 10px 24px rgba(15, 95, 112, 0.15);
}

body.qifeng-premium-v4 .button-secondary {
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.16);
}

body.qifeng-premium-v4 .text-link {
  color: var(--qf-v4-brand);
  font-weight: 700;
}

body.qifeng-premium-v4 .feature-list {
  margin: 0;
  padding-left: 1.15rem;
  color: var(--qf-v4-muted);
}

body.qifeng-premium-v4 .feature-list li + li {
  margin-top: 10px;
}

body.qifeng-premium-v4 .qf-site-header--v4 {
  position: sticky;
  top: 0;
  z-index: 120;
  border-bottom: 1px solid rgba(255, 255, 255, 0.42);
  background: rgba(244, 247, 248, 0.7);
  backdrop-filter: blur(18px);
  transition: background 0.24s ease, box-shadow 0.24s ease, border-color 0.24s ease;
}

body.admin-bar.qifeng-premium-v4 .qf-site-header--v4 {
  top: 32px;
}

body.qifeng-premium-v4 .qf-site-header--v4.is-scrolled {
  background: rgba(244, 247, 248, 0.92);
  border-color: rgba(16, 33, 50, 0.08);
  box-shadow: 0 10px 32px rgba(12, 25, 39, 0.08);
}

body.qifeng-premium-v4 .qf-topbar {
  border-bottom: 1px solid rgba(255, 255, 255, 0.4);
  background: linear-gradient(90deg, rgba(10, 45, 56, 0.95), rgba(17, 61, 72, 0.92));
  color: rgba(255, 255, 255, 0.84);
}

body.qifeng-premium-v4 .qf-topbar__inner,
body.qifeng-premium-v4 .qf-header-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

body.qifeng-premium-v4 .qf-topbar__inner {
  min-height: 38px;
}

body.qifeng-premium-v4 .qf-topbar__proof,
body.qifeng-premium-v4 .qf-topbar__actions,
body.qifeng-premium-v4 .qf-language-switcher {
  display: flex;
  align-items: center;
  gap: 16px;
}

body.qifeng-premium-v4 .qf-topbar__proof {
  flex-wrap: wrap;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

body.qifeng-premium-v4 .qf-topbar__proof span,
body.qifeng-premium-v4 .qf-topbar__actions a {
  position: relative;
}

body.qifeng-premium-v4 .qf-topbar__proof span:not(:last-child)::after,
body.qifeng-premium-v4 .qf-topbar__actions a:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 50%;
  right: -9px;
  width: 1px;
  height: 12px;
  background: rgba(255, 255, 255, 0.18);
  transform: translateY(-50%);
}

body.qifeng-premium-v4 .qf-topbar__actions a,
body.qifeng-premium-v4 .qf-topbar__actions .qf-language-switcher a {
  color: rgba(255, 255, 255, 0.86);
  font-size: 0.84rem;
}

body.qifeng-premium-v4 .qf-header-main {
  min-height: 88px;
}

body.qifeng-premium-v4 .qf-brand-mark {
  display: grid;
  gap: 4px;
  max-width: 320px;
  min-width: 0;
}

body.qifeng-premium-v4 .qf-brand-mark .brand-mark__name {
  font-size: 1.62rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--qf-v4-brand-deep);
}

body.qifeng-premium-v4 .qf-brand-mark .brand-mark__tag {
  font-size: 0.94rem;
  color: var(--qf-v4-muted);
}

body.qifeng-premium-v4 .qf-nav-desktop {
  flex: 1;
  display: flex;
  justify-content: center;
}

body.qifeng-premium-v4 .qf-nav-list {
  display: flex;
  align-items: center;
  gap: 10px;
  list-style: none;
  margin: 0;
  padding: 0;
}

body.qifeng-premium-v4 .qf-nav-item {
  position: relative;
}

body.qifeng-premium-v4 .qf-nav-link,
body.qifeng-premium-v4 .qf-nav-trigger,
body.qifeng-premium-v4 .qf-header-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 14px;
  border-radius: 999px;
  border: 0;
  background: transparent;
  color: var(--qf-v4-ink);
  cursor: pointer;
  font: inherit;
  font-size: 0.96rem;
  font-weight: 600;
}

body.qifeng-premium-v4 .qf-nav-link:hover,
body.qifeng-premium-v4 .qf-nav-trigger:hover,
body.qifeng-premium-v4 .qf-nav-item--group.is-open > .qf-nav-trigger,
body.qifeng-premium-v4 .qf-header-link:hover {
  background: rgba(15, 95, 112, 0.09);
  color: var(--qf-v4-brand);
}

body.qifeng-premium-v4 .qf-nav-caret {
  width: 8px;
  height: 8px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg) translateY(-1px);
  transition: transform 0.2s ease;
}

body.qifeng-premium-v4 .qf-nav-item--group.is-open .qf-nav-caret,
body.qifeng-premium-v4 .qf-mobile-nav__item--group.is-open .qf-nav-caret {
  transform: rotate(-135deg) translate(-2px, -1px);
}

body.qifeng-premium-v4 .qf-nav-panel {
  position: absolute;
  top: calc(100% + 14px);
  left: 0;
  display: grid;
  grid-template-columns: minmax(230px, 0.8fr) minmax(420px, 1.2fr);
  gap: 22px;
  min-width: 720px;
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.76);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--qf-v4-shadow-strong);
}

body.qifeng-premium-v4 .qf-nav-panel[hidden],
body.qifeng-premium-v4 .qf-mobile-overlay[hidden],
body.qifeng-premium-v4 .qf-mobile-drawer[hidden],
body.qifeng-premium-v4 .qf-mobile-nav__panel[hidden] {
  display: none !important;
}

body.qifeng-premium-v4 .qf-nav-panel__intro {
  padding: 12px;
  border-radius: 22px;
  background: linear-gradient(180deg, rgba(15, 95, 112, 0.08), rgba(9, 22, 36, 0.02));
}

body.qifeng-premium-v4 .qf-nav-panel__intro h3 {
  margin: 0 0 10px;
  font-size: 1.4rem;
}

body.qifeng-premium-v4 .qf-nav-panel__intro p {
  margin: 0;
  color: var(--qf-v4-muted);
}

body.qifeng-premium-v4 .qf-nav-panel__cta {
  display: inline-flex;
  margin-top: 18px;
  color: var(--qf-v4-brand);
  font-weight: 700;
}

body.qifeng-premium-v4 .qf-nav-panel__links {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

body.qifeng-premium-v4 .qf-nav-link-card {
  display: grid;
  gap: 6px;
  padding: 16px 18px;
  border: 1px solid var(--qf-v4-line);
  border-radius: 18px;
  background: linear-gradient(180deg, #ffffff, #f8fafc);
  transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
}

body.qifeng-premium-v4 .qf-nav-link-card:hover {
  transform: translateY(-3px);
  border-color: rgba(15, 95, 112, 0.18);
  box-shadow: 0 18px 32px rgba(15, 95, 112, 0.12);
}

body.qifeng-premium-v4 .qf-nav-link-card strong {
  font-size: 0.98rem;
}

body.qifeng-premium-v4 .qf-nav-link-card span {
  color: var(--qf-v4-muted);
  font-size: 0.88rem;
  line-height: 1.5;
}

body.qifeng-premium-v4 .qf-header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

body.qifeng-premium-v4 .qf-header-link {
  color: var(--qf-v4-brand);
}

body.qifeng-premium-v4 .qf-header-cta {
  white-space: nowrap;
}

body.qifeng-premium-v4 .qf-header-cta--mobile {
  display: none;
}

body.qifeng-premium-v4 .qf-menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border: 1px solid var(--qf-v4-line);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.85);
  box-shadow: 0 12px 24px rgba(15, 95, 112, 0.1);
}

body.qifeng-premium-v4 .qf-menu-toggle span {
  width: 18px;
  margin: 3px 0;
  background: var(--qf-v4-brand-deep);
}

body.qifeng-premium-v4 .qf-mobile-overlay {
  position: fixed;
  inset: 0;
  z-index: 118;
  background: rgba(7, 16, 27, 0.45);
  backdrop-filter: blur(6px);
}

body.qifeng-premium-v4 .qf-mobile-drawer {
  position: fixed;
  top: 0;
  right: 0;
  z-index: 119;
  display: flex;
  flex-direction: column;
  width: min(420px, 100vw);
  height: 100vh;
  padding: 22px 20px 30px;
  background: linear-gradient(180deg, rgba(247, 249, 251, 0.98), rgba(234, 240, 244, 0.96));
  box-shadow: -20px 0 50px rgba(11, 22, 34, 0.22);
  overflow-y: auto;
}

body.qifeng-premium-v4 .qf-mobile-drawer__header,
body.qifeng-premium-v4 .qf-mobile-actions,
body.qifeng-premium-v4 .qf-mobile-meta {
  display: flex;
}

body.qifeng-premium-v4 .qf-mobile-drawer__header {
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--qf-v4-line);
}

body.qifeng-premium-v4 .qf-brand-mark--drawer {
  max-width: 220px;
}

body.qifeng-premium-v4 .qf-mobile-close {
  position: relative;
  width: 42px;
  height: 42px;
  border: 1px solid var(--qf-v4-line);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.78);
}

body.qifeng-premium-v4 .qf-mobile-close span {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 16px;
  height: 2px;
  background: var(--qf-v4-brand-deep);
}

body.qifeng-premium-v4 .qf-mobile-close span:first-child {
  transform: translate(-50%, -50%) rotate(45deg);
}

body.qifeng-premium-v4 .qf-mobile-close span:last-child {
  transform: translate(-50%, -50%) rotate(-45deg);
}

body.qifeng-premium-v4 .qf-mobile-drawer__body {
  padding-top: 20px;
}

body.qifeng-premium-v4 .qf-mobile-actions {
  flex-direction: column;
  gap: 12px;
  margin-bottom: 22px;
}

body.qifeng-premium-v4 .qf-mobile-primary-cta {
  width: 100%;
  justify-content: center;
}

body.qifeng-premium-v4 .qf-mobile-secondary-cta {
  color: var(--qf-v4-brand);
  font-weight: 700;
}

body.qifeng-premium-v4 .qf-mobile-nav__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

body.qifeng-premium-v4 .qf-mobile-nav__item + .qf-mobile-nav__item {
  border-top: 1px solid var(--qf-v4-line);
}

body.qifeng-premium-v4 .qf-mobile-nav__trigger,
body.qifeng-premium-v4 .qf-mobile-nav__direct {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 0;
  border: 0;
  background: transparent;
  color: var(--qf-v4-ink);
  font: inherit;
  font-size: 1rem;
  font-weight: 700;
  text-align: left;
}

body.qifeng-premium-v4 .qf-mobile-nav__panel {
  padding: 0 0 18px;
}

body.qifeng-premium-v4 .qf-mobile-nav__link,
body.qifeng-premium-v4 .qf-mobile-nav__cta {
  display: grid;
  gap: 4px;
  padding: 14px 16px;
  margin-bottom: 10px;
  border: 1px solid rgba(255, 255, 255, 0.65);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.7);
}

body.qifeng-premium-v4 .qf-mobile-nav__link span {
  color: var(--qf-v4-muted);
  font-size: 0.88rem;
  line-height: 1.45;
}

body.qifeng-premium-v4 .qf-mobile-nav__cta {
  color: var(--qf-v4-brand);
  font-weight: 700;
}

body.qifeng-premium-v4 .qf-mobile-meta {
  flex-direction: column;
  gap: 18px;
  padding-top: 10px;
}

body.qifeng-premium-v4 .qf-mobile-meta__block {
  padding-top: 16px;
  border-top: 1px solid var(--qf-v4-line);
}

body.qifeng-premium-v4 .qf-mobile-meta__block a {
  display: block;
  color: var(--qf-v4-ink);
}

body.qifeng-premium-v4.qf-menu-open {
  overflow: hidden;
}

body.qifeng-premium-v4 .qf-hero--v4 {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: 860px;
  padding: 160px 0 118px;
  overflow: hidden;
}

body.qifeng-premium-v4 .qf-hero--v4::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(108deg, rgba(7, 17, 28, 0.88) 0%, rgba(7, 17, 28, 0.65) 38%, rgba(7, 17, 28, 0.22) 100%),
    linear-gradient(180deg, rgba(7, 17, 28, 0.16), rgba(7, 17, 28, 0.6));
  z-index: 0;
}

body.qifeng-premium-v4 .qf-hero--v4::after {
  content: "";
  position: absolute;
  inset: auto auto 0 -5%;
  width: 40vw;
  min-width: 240px;
  aspect-ratio: 1;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(179, 106, 52, 0.18) 0%, rgba(179, 106, 52, 0) 72%);
  z-index: 0;
}

body.qifeng-premium-v4 .qf-hero--v4 > img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

body.qifeng-premium-v4 .qf-hero-shell {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 28px;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.72fr);
  align-items: end;
}

body.qifeng-premium-v4 .qf-hero-content {
  max-width: 760px;
  color: #ffffff;
}

body.qifeng-premium-v4 .qf-hero-content h1 {
  margin: 0;
  font-size: clamp(3.2rem, 6vw, 6rem);
  line-height: 0.95;
  color: #ffffff;
}

body.qifeng-premium-v4 .qf-hero-content .lead {
  max-width: 680px;
  margin: 20px 0 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 1.12rem;
}

body.qifeng-premium-v4 .qf-hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

body.qifeng-premium-v4 .qf-hero-tertiary {
  display: inline-flex;
  align-items: center;
  color: #ffffff;
  font-weight: 700;
}

body.qifeng-premium-v4 .qf-hero-proof-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

body.qifeng-premium-v4 .qf-hero-proof {
  padding: 12px 16px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
}

body.qifeng-premium-v4 .qf-hero-capability {
  position: relative;
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(241, 245, 249, 0.84));
}

body.qifeng-premium-v4 .qf-hero-capability h2 {
  margin: 10px 0 0;
  font-size: clamp(1.8rem, 2.4vw, 2.5rem);
}

body.qifeng-premium-v4 .qf-hero-capability__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 22px;
}

body.qifeng-premium-v4 .qf-hero-capability__grid article {
  padding: 16px 14px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(16, 33, 50, 0.06);
}

body.qifeng-premium-v4 .qf-hero-capability__grid strong {
  display: block;
  color: var(--qf-v4-brand-deep);
  font-size: 1.7rem;
}

body.qifeng-premium-v4 .qf-hero-capability__grid span,
body.qifeng-premium-v4 .qf-hero-capability .feature-list {
  color: var(--qf-v4-muted);
}

body.qifeng-premium-v4 .qf-stat-bar--v4 {
  position: relative;
  z-index: 3;
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 14px;
  margin-top: -132px;
}

body.qifeng-premium-v4 .qf-stat-bar--v4 .qf-stat {
  padding: 22px 18px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(255, 255, 255, 0.8);
  box-shadow: var(--qf-v4-shadow);
}

body.qifeng-premium-v4 .qf-stat-bar--v4 strong {
  color: var(--qf-v4-brand-deep);
  font-size: 1.5rem;
}

body.qifeng-premium-v4 .qf-stat-bar--v4 span {
  color: var(--qf-v4-muted);
}

body.qifeng-premium-v4 .qf-section--trust {
  padding-top: 56px;
}

body.qifeng-premium-v4 .qf-trust-grid--v4,
body.qifeng-premium-v4 .qf-focus-grid,
body.qifeng-premium-v4 .qf-category-strip,
body.qifeng-premium-v4 .qf-capability-module__grid,
body.qifeng-premium-v4 .qf-footer-grid {
  display: grid;
  gap: 20px;
}

body.qifeng-premium-v4 .qf-trust-grid--v4 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

body.qifeng-premium-v4 .qf-focus-shell,
body.qifeng-premium-v4 .qf-capability-module__layout,
body.qifeng-premium-v4 .qf-home-inquiry,
body.qifeng-premium-v4 .qf-contact-intake,
body.qifeng-premium-v4 .qf-custom-cta,
body.qifeng-premium-v4 .qf-products-cta,
body.qifeng-premium-v4 .qf-industries-shell {
  display: grid;
  gap: 28px;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
}

body.qifeng-premium-v4 .qf-focus-shell {
  align-items: start;
}

body.qifeng-premium-v4 .qf-focus-grid,
body.qifeng-premium-v4 .qf-capability-module__grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

body.qifeng-premium-v4 .qf-category-strip {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

body.qifeng-premium-v4 .qf-category-strip__card,
body.qifeng-premium-v4 .qf-product-card--v4,
body.qifeng-premium-v4 .category-card {
  overflow: hidden;
}

body.qifeng-premium-v4 .qf-category-strip__thumb,
body.qifeng-premium-v4 .qf-category-strip__thumb img {
  min-height: 220px;
  object-fit: cover;
}

body.qifeng-premium-v4 .qf-product-card--v4 .card-body,
body.qifeng-premium-v4 .qf-category-strip__card .card-body {
  display: grid;
  gap: 10px;
}

body.qifeng-premium-v4 .qf-product-card--v4 p,
body.qifeng-premium-v4 .qf-category-strip__card p {
  color: var(--qf-v4-muted);
}

body.qifeng-premium-v4 .qf-product-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 8px;
  padding-top: 14px;
  border-top: 1px solid var(--qf-v4-line);
}

body.qifeng-premium-v4 .qf-product-card__footer span {
  color: var(--qf-v4-muted);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

body.qifeng-premium-v4 .qf-capability-module {
  position: relative;
  overflow: hidden;
}

body.qifeng-premium-v4 .qf-dark {
  background:
    radial-gradient(circle at top left, rgba(179, 106, 52, 0.18), transparent 28%),
    linear-gradient(180deg, #0a1826 0%, #102334 100%);
  color: #ffffff;
}

body.qifeng-premium-v4 .qf-dark .section-heading h2,
body.qifeng-premium-v4 .qf-dark h3,
body.qifeng-premium-v4 .qf-dark p,
body.qifeng-premium-v4 .qf-dark li,
body.qifeng-premium-v4 .qf-dark .eyebrow,
body.qifeng-premium-v4 .qf-dark strong {
  color: #ffffff;
}

body.qifeng-premium-v4 .qf-dark .feature-list li,
body.qifeng-premium-v4 .qf-dark .process-step p {
  color: rgba(255, 255, 255, 0.74);
}

body.qifeng-premium-v4 .qf-capability-module__copy .button {
  margin-top: 22px;
}

body.qifeng-premium-v4 .qf-capability-module__grid .process-step,
body.qifeng-premium-v4 .qf-process-step {
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.06);
}

body.qifeng-premium-v4 .qf-capability-module__grid .process-step h3,
body.qifeng-premium-v4 .qf-process-step h3 {
  margin: 0 0 10px;
  font-size: 1.1rem;
}

body.qifeng-premium-v4 .qf-capability-module__media img,
body.qifeng-premium-v4 .support-section__media img,
body.qifeng-premium-v4 .qf-home-inquiry__media img,
body.qifeng-premium-v4 .qf-industries-shell__media img,
body.qifeng-premium-v4 .process-aside__thumb img,
body.qifeng-premium-v4 .trust-card__thumb img,
body.qifeng-premium-v4 .product-card__thumb img,
body.qifeng-premium-v4 .category-card__thumb img,
body.qifeng-premium-v4 .post-card__thumb img,
body.qifeng-premium-v4 .page-hero__media img {
  width: 100%;
  height: 100%;
  min-height: 100%;
  object-fit: cover;
}

body.qifeng-premium-v4 .qf-home-inquiry__copy,
body.qifeng-premium-v4 .qf-contact-intake__content {
  display: grid;
  gap: 20px;
}

body.qifeng-premium-v4 .qf-home-inquiry__media {
  overflow: hidden;
}

body.qifeng-premium-v4 .qf-inquiry--v4 {
  padding: 28px;
}

body.qifeng-premium-v4 .qf-inquiry__header {
  margin-bottom: 18px;
}

body.qifeng-premium-v4 .qf-inquiry--v4 h3 {
  margin: 0;
  font-size: clamp(1.6rem, 2.4vw, 2.2rem);
  color: var(--qf-v4-brand-deep);
}

body.qifeng-premium-v4 .qf-inquiry__points {
  display: grid;
  gap: 8px;
  margin: 16px 0 0;
  padding-left: 1.15rem;
  color: var(--qf-v4-muted);
}

body.qifeng-premium-v4 .qf-inquiry input,
body.qifeng-premium-v4 .qf-inquiry textarea,
body.qifeng-premium-v4 .qf-inquiry select {
  border-radius: 16px;
  border: 1px solid var(--qf-v4-line-strong);
  background: rgba(255, 255, 255, 0.92);
}

body.qifeng-premium-v4 .qf-handoff-strip__shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 34px;
}

body.qifeng-premium-v4 .qf-handoff-strip__shell h2 {
  margin: 0 0 12px;
  font-size: clamp(2rem, 3.2vw, 3rem);
}

body.qifeng-premium-v4 .qf-handoff-strip__shell p {
  color: var(--qf-v4-muted);
}

body.qifeng-premium-v4 .qf-page-hero {
  padding-top: 124px;
  background:
    radial-gradient(circle at top right, rgba(15, 95, 112, 0.16), transparent 26%),
    linear-gradient(180deg, #0d1d2d 0%, #122437 100%);
}

body.qifeng-premium-v4 .qf-page-hero .page-hero__grid {
  gap: 34px;
  align-items: center;
}

body.qifeng-premium-v4 .qf-page-hero .page-hero__content {
  max-width: 690px;
}

body.qifeng-premium-v4 .qf-page-hero h1 {
  margin: 0;
  font-size: clamp(2.8rem, 4.8vw, 4.8rem);
}

body.qifeng-premium-v4 .qf-page-hero .lead {
  color: rgba(255, 255, 255, 0.76);
}

body.qifeng-premium-v4 .qf-page-hero .button-secondary {
  color: #ffffff;
}

body.qifeng-premium-v4 .qf-page-hero .page-hero__media {
  overflow: hidden;
}

body.qifeng-premium-v4 .qf-filter-bar {
  justify-content: center;
  gap: 12px;
}

body.qifeng-premium-v4 .qf-filter-pill {
  padding: 12px 18px;
  border-radius: 999px;
  border: 1px solid var(--qf-v4-line);
  background: rgba(255, 255, 255, 0.84);
  color: var(--qf-v4-ink);
  font-weight: 600;
}

body.qifeng-premium-v4 .qf-filter-pill:hover {
  border-color: rgba(15, 95, 112, 0.18);
  color: var(--qf-v4-brand);
}

body.qifeng-premium-v4 .visual-card figcaption {
  color: var(--qf-v4-muted);
}

body.qifeng-premium-v4 .qf-footer {
  position: relative;
  padding: 0 0 24px;
  background:
    linear-gradient(180deg, rgba(8, 18, 29, 0.96), rgba(9, 20, 32, 0.98)),
    var(--qifeng-footer-bg) center/cover no-repeat;
  color: rgba(255, 255, 255, 0.88);
}

body.qifeng-premium-v4 .qf-footer::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8, 18, 29, 0.84), rgba(8, 18, 29, 0.96));
}

body.qifeng-premium-v4 .qf-footer-shell,
body.qifeng-premium-v4 .footer-meta {
  position: relative;
  z-index: 1;
}

body.qifeng-premium-v4 .qf-footer-shell {
  padding-top: 40px;
}

body.qifeng-premium-v4 .qf-footer-cta-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 28px;
  padding: 34px;
  background: linear-gradient(120deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.06));
  border: 1px solid rgba(255, 255, 255, 0.14);
}

body.qifeng-premium-v4 .qf-footer-cta-card .footer-cta-copy {
  max-width: 760px;
}

body.qifeng-premium-v4 .qf-footer-cta-card h2,
body.qifeng-premium-v4 .qf-footer-grid h3,
body.qifeng-premium-v4 .qf-footer-grid p,
body.qifeng-premium-v4 .qf-footer-grid a,
body.qifeng-premium-v4 .footer-meta p {
  color: #ffffff;
}

body.qifeng-premium-v4 .qf-footer-proof {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

body.qifeng-premium-v4 .qf-footer-proof span {
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.88);
}

body.qifeng-premium-v4 .qf-footer-grid {
  grid-template-columns: 1.2fr 1fr 0.9fr 0.9fr;
  gap: 28px;
}

body.qifeng-premium-v4 .footer-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

body.qifeng-premium-v4 .footer-list li + li {
  margin-top: 10px;
}

body.qifeng-premium-v4 .footer-meta {
  padding-top: 10px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

body.qifeng-premium-v4 .reveal {
  opacity: 1;
  transform: none;
}

@media (max-width: 1279px) {
  body.qifeng-premium-v4 .qf-nav-panel {
    min-width: 660px;
    grid-template-columns: minmax(220px, 0.9fr) minmax(0, 1.1fr);
  }

  body.qifeng-premium-v4 .qf-category-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  body.qifeng-premium-v4 .qf-stat-bar--v4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    margin-top: -94px;
  }
}

@media (max-width: 1100px) {
  body.qifeng-premium-v4 .qf-nav-desktop,
  body.qifeng-premium-v4 .qf-header-link {
    display: none;
  }

  body.qifeng-premium-v4 .qf-menu-toggle {
    display: inline-flex;
  }

  body.qifeng-premium-v4 .qf-hero-shell,
  body.qifeng-premium-v4 .qf-focus-shell,
  body.qifeng-premium-v4 .qf-capability-module__layout,
  body.qifeng-premium-v4 .qf-home-inquiry,
  body.qifeng-premium-v4 .qf-contact-intake,
  body.qifeng-premium-v4 .qf-custom-cta,
  body.qifeng-premium-v4 .qf-products-cta,
  body.qifeng-premium-v4 .qf-industries-shell,
  body.qifeng-premium-v4 .qf-footer-cta-card {
    grid-template-columns: 1fr;
  }

  body.qifeng-premium-v4 .qf-footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  body.qifeng-premium-v4 .qf-hero-capability {
    max-width: 640px;
  }
}

@media (max-width: 782px) {
  body.admin-bar.qifeng-premium-v4 .qf-site-header--v4 {
    top: 46px;
  }

  body.qifeng-premium-v4 .container {
    width: min(100% - 24px, 1240px);
  }

  body.qifeng-premium-v4 .qf-topbar {
    display: none;
  }

  body.qifeng-premium-v4 .qf-header-main {
    min-height: 76px;
  }

  body.qifeng-premium-v4 .qf-brand-mark {
    max-width: 230px;
  }

  body.qifeng-premium-v4 .qf-brand-mark .brand-mark__eyebrow,
  body.qifeng-premium-v4 .qf-brand-mark .brand-mark__tag {
    font-size: 0.74rem;
  }

  body.qifeng-premium-v4 .qf-brand-mark .brand-mark__name {
    font-size: 1.22rem;
  }

  body.qifeng-premium-v4 .qf-header-cta {
    padding: 12px 18px;
    font-size: 0.92rem;
  }

  body.qifeng-premium-v4 .qf-header-cta--desktop {
    display: none;
  }

  body.qifeng-premium-v4 .qf-header-cta--mobile {
    display: inline-flex;
    order: 2;
  }

  body.qifeng-premium-v4 .qf-menu-toggle {
    order: 1;
    background: var(--qf-v4-brand-deep);
    border-color: rgba(10, 45, 56, 0.12);
    box-shadow: 0 10px 24px rgba(10, 45, 56, 0.18);
  }

  body.qifeng-premium-v4 .qf-menu-toggle span {
    background: #ffffff;
  }

  body.qifeng-premium-v4 .qf-hero--v4 {
    min-height: 760px;
    padding: 126px 0 86px;
  }

  body.qifeng-premium-v4 .qf-hero-content h1 {
    font-size: clamp(2.3rem, 10vw, 3.6rem);
  }

  body.qifeng-premium-v4 .qf-hero-content .lead {
    font-size: 1rem;
  }

  body.qifeng-premium-v4 .qf-hero-capability__grid,
  body.qifeng-premium-v4 .qf-trust-grid--v4,
  body.qifeng-premium-v4 .qf-focus-grid,
  body.qifeng-premium-v4 .qf-capability-module__grid,
  body.qifeng-premium-v4 .qf-footer-grid {
    grid-template-columns: 1fr;
  }

  body.qifeng-premium-v4 .qf-stat-bar--v4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    margin-top: -52px;
  }

  body.qifeng-premium-v4 .qf-section--trust {
    padding-top: 44px;
  }

  body.qifeng-premium-v4 .qf-handoff-strip__shell,
  body.qifeng-premium-v4 .qf-footer-cta-card {
    align-items: flex-start;
  }

  body.qifeng-premium-v4 .qf-page-hero {
    padding-top: 108px;
  }

  body.qifeng-premium-v4 .qf-page-hero h1 {
    font-size: clamp(2.1rem, 9vw, 3rem);
  }
}

@media (max-width: 560px) {
  body.qifeng-premium-v4 .content-section,
  body.qifeng-premium-v4 .cta-band,
  body.qifeng-premium-v4 .stats-band,
  body.qifeng-premium-v4 .page-hero {
    padding: 68px 0;
  }

  body.qifeng-premium-v4 .qf-header-main {
    gap: 8px;
  }

  body.qifeng-premium-v4 .qf-header-actions {
    gap: 6px;
    margin-left: auto;
  }

  body.qifeng-premium-v4 .qf-header-cta {
    padding: 8px 10px;
    font-size: 0.76rem;
  }

  body.qifeng-premium-v4 .qf-menu-toggle {
    width: 38px;
    height: 38px;
  }

  body.qifeng-premium-v4 .qf-brand-mark {
    max-width: 120px;
    gap: 2px;
  }

  body.qifeng-premium-v4 .qf-brand-mark .brand-mark__eyebrow {
    display: none;
  }

  body.qifeng-premium-v4 .qf-brand-mark .brand-mark__name {
    font-size: 0.92rem;
    letter-spacing: 0.03em;
  }

  body.qifeng-premium-v4 .qf-brand-mark .brand-mark__tag {
    display: none;
  }

  body.qifeng-premium-v4 .qf-hero--v4 {
    min-height: 700px;
    padding-top: 112px;
  }

  body.qifeng-premium-v4 .qf-hero-actions {
    align-items: stretch;
  }

  body.qifeng-premium-v4 .qf-hero-actions .button {
    width: 100%;
    justify-content: center;
  }

  body.qifeng-premium-v4 .qf-hero-tertiary {
    width: 100%;
    justify-content: center;
  }

  body.qifeng-premium-v4 .qf-hero-proof-list {
    gap: 10px;
  }

  body.qifeng-premium-v4 .qf-hero-proof {
    width: 100%;
    justify-content: center;
    text-align: center;
  }

  body.qifeng-premium-v4 .qf-stat-bar--v4 {
    grid-template-columns: 1fr;
    margin-top: -34px;
  }

  body.qifeng-premium-v4 .qf-category-strip,
  body.qifeng-premium-v4 .qf-footer-grid {
    grid-template-columns: 1fr;
  }

  body.qifeng-premium-v4 .qf-inquiry--v4,
  body.qifeng-premium-v4 .qf-hero-capability,
  body.qifeng-premium-v4 .qf-handoff-strip__shell,
  body.qifeng-premium-v4 .qf-footer-cta-card {
    padding: 22px;
  }
}