:root {
  --bg: #ffffff;
  --bg-soft: #f5f5f7;
  --bg-elevated: rgba(255,255,255,.82);
  --ink: #1d1d1f;
  --ink-2: #424245;
  --muted: #6e6e73;
  --line: rgba(0,0,0,.1);
  --line-strong: rgba(0,0,0,.18);
  --green: #16723a;
  --green-dark: #0f4f2a;
  --green-light: #2a8c4f;
  --green-xlight: #eaf5ee;
  --gold: #c99a28;
  --white: #ffffff;
  --off-white: #f5f5f7;
  --grey-light: #f5f5f7;
  --grey-mid: rgba(0,0,0,.1);
  --grey-border: rgba(0,0,0,.14);
  --text-dark: #1d1d1f;
  --text-mid: #424245;
  --text-light: #6e6e73;
  --hero-bg: #111312;
  --shadow: 0 22px 70px rgba(0,0,0,.08);
  --shadow-soft: 0 10px 30px rgba(0,0,0,.06);
  --radius: 24px;
  --radius-sm: 14px;
  --max: 1160px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
  letter-spacing: 0;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; image-rendering: auto; }
a { color: inherit; text-decoration: none; }
p, h1, h2, h3, h4, ul { margin-top: 0; }
button, input, select, textarea { font: inherit; }

[data-vi], [data-vi-block] { display: none; }
body.vi-mode [data-en] { display: none !important; }
body.vi-mode [data-vi] { display: inline !important; }
body.vi-mode [data-vi-block] { display: block !important; }

.inner, .footer-inner, .info-bar-inner {
  width: min(var(--max), calc(100% - 44px));
  margin: 0 auto;
}

.lang-bar {
  position: fixed;
  top: 0;
  inset-inline: 0;
  height: 34px;
  z-index: 90;
  background: rgba(255,255,255,.72);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
}
.lang-bar .inner {
  height: 34px;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 6px;
}
.lang-btn {
  border: 0;
  border-radius: 999px;
  padding: 5px 10px;
  background: transparent;
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
}
.lang-btn.active {
  background: #1d1d1f;
  color: #fff;
}

nav {
  position: fixed;
  top: 34px;
  inset-inline: 0;
  z-index: 80;
  background: rgba(255,255,255,.78);
  backdrop-filter: blur(22px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  width: min(var(--max), calc(100% - 44px));
  min-height: 64px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo-area {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 172px;
}
.logo-img {
  width: 38px;
  height: 38px;
  object-fit: contain;
  transform: scale(1.34);
  transform-origin: center;
}
.logo-name {
  font-size: 16px;
  line-height: 1;
  font-weight: 760;
  letter-spacing: .01em;
}
.logo-sub {
  margin-top: 3px;
  color: var(--muted);
  font-size: 10px;
  font-weight: 650;
  letter-spacing: .14em;
}
.nav-links {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 2px;
}
.nav-links a {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 13px;
  border-radius: 999px;
  color: var(--ink-2);
  font-size: 14px;
  font-weight: 560;
  transition: background .2s ease, color .2s ease;
}
.nav-links a:hover { background: var(--bg-soft); color: var(--ink); }
.nav-links .nav-cta {
  margin-left: 6px;
  background: #1d1d1f;
  color: #fff !important;
  padding-inline: 17px;
}
.hamburger {
  display: none;
  width: 38px;
  height: 38px;
  border: 0;
  border-radius: 999px;
  background: var(--bg-soft);
  cursor: pointer;
}
.hamburger span {
  display: block;
  width: 17px;
  height: 2px;
  margin: 4px auto;
  background: var(--ink);
  border-radius: 999px;
}

section { padding: 88px 0; }
.hero {
  padding: 168px 0 90px;
  min-height: 720px;
  background: radial-gradient(circle at 75% 20%, rgba(22,114,58,.1), transparent 38%), #fff;
}
.page-hero {
  padding: 150px 0 70px;
  min-height: 560px;
  background: radial-gradient(circle at 75% 20%, rgba(22,114,58,.1), transparent 38%), #fff;
}

/* dot7 30/08: main#pg va main#spec khong co .page-hero nen khong bu chieu cao thanh dieu huong co dinh -> dong dau cua H1 bi che. 116 + 34 (padding san co cua section) = 150px, khop .page-hero */
#pg, #spec { padding-top: 116px; }

.hero-inner, .page-hero .inner {
  width: min(var(--max), calc(100% - 44px));
  margin: 0 auto;
}
.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(360px, .98fr);
  gap: 56px;
  align-items: center;
}
.hero-content, .page-hero .inner {
  max-width: 820px;
}
.hero h1, .page-hero h1 {
  margin: 0 0 22px;
  color: var(--ink);
  font-size: clamp(48px, 7vw, 86px);
  line-height: .98;
  letter-spacing: -.04em;
  font-weight: 760;
}
.hero h1 span, .page-hero h1 span { color: inherit; }
.hero h1 > span > span, .page-hero h1 > span > span { color: var(--green); }
.hero-sub, .page-hero p {
  max-width: 710px;
  color: var(--muted);
  font-size: clamp(18px, 2.1vw, 24px);
  line-height: 1.42;
  letter-spacing: -.01em;
}
.hero-label, .page-hero-label, .section-label, .fine {
  display: block;
  margin-bottom: 14px;
  color: var(--green);
  font-size: 12px;
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
}
.breadcrumb {
  display: flex;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 24px;
}
.trust-badges, .hero-btns, .actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 30px;
}
.badge {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 13px;
  border-radius: 999px;
  background: var(--bg-soft);
  color: var(--ink-2);
  font-size: 13px;
  font-weight: 600;
}
.btn-primary, .btn-secondary, .btn-form, .btn-submit, .nav-cta, .social-link, .text-link {
  transition: transform .2s ease, background .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.btn-primary, .btn-form, .btn-submit, .nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 13px 22px;
  border: 0;
  border-radius: 999px;
  background: #1d1d1f;
  color: #fff !important;
  font-size: 15px;
  font-weight: 680;
  cursor: pointer;
  box-shadow: none;
}
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 20px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255,255,255,.75);
  color: var(--ink);
  font-size: 15px;
  font-weight: 640;
}
.btn-primary:hover, .btn-form:hover, .btn-submit:hover, .btn-secondary:hover, .text-link:hover {
  transform: translateY(-1px);
}
.page-hero .btn-primary + a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  margin-left: 8px;
  padding: 12px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255,255,255,.72);
  color: var(--ink);
  font-size: 15px;
  font-weight: 640;
  white-space: nowrap;
}
.hero-visual-stack {
  position: relative;
  min-height: 540px;
}
.hero-main-img, .hero-proof-img, .factory-img, .bundle-img, .story-main-img, .contact-card, .lead-form, .inquiry-form, .value-card, .solution-card, .service-card, .cert-card, .review-card, .size-card, .custom-card, .bundle-card {
  border: 1px solid var(--line);
  background: var(--bg-elevated);
  box-shadow: var(--shadow-soft);
}
.hero-main-img {
  overflow: hidden;
  border-radius: 34px;
  aspect-ratio: 4 / 5;
}
.hero-main-img img, .hero-proof-img img, .factory-img img, .bundle-img img, .story-main-img img, .shipping-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero-proof-img {
  position: absolute;
  left: -38px;
  bottom: 10px;
  width: 46%;
  overflow: hidden;
  border-radius: 24px;
  background: #fff;
}
.hero-proof-img img { aspect-ratio: 4 / 3; }
.hero-proof-label, .hero-float-badge, .hero-moq-pill {
  position: absolute;
  border-radius: 999px;
  background: rgba(255,255,255,.86);
  backdrop-filter: blur(18px);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
  color: var(--ink);
  font-size: 13px;
  font-weight: 700;
}
.hero-float-badge { top: 32px; right: -10px; padding: 13px 16px; }
.hero-moq-pill { right: 18px; bottom: 74px; padding: 13px 18px; }
.hero-proof-label { left: 14px; bottom: 14px; padding: 9px 12px; }

.hero-stat-strip, .usp-grid, .factory-grid, .certs-row, .reviews-grid, .social-inner, .lead-inner, .inquiry-inner, .contact-grid, .story-grid, .values-grid, .timeline-grid, .bundle-grid, .custom-grid, .sizes-grid, .solutions-grid, .service-grid {
  display: grid;
  gap: 18px;
}
.hero-stat-strip {
  grid-template-columns: repeat(4, 1fr);
  margin-top: 44px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-soft);
}
.hero-stat {
  padding: 16px;
  border-radius: 18px;
  background: #fff;
}
.hero-stat strong {
  display: block;
  font-size: 30px;
  line-height: 1;
  letter-spacing: -.03em;
}
.hero-stat span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
}

.section-title, section h2 {
  max-width: 850px;
  color: var(--ink);
  font-size: clamp(34px, 4.5vw, 58px);
  line-height: 1.04;
  letter-spacing: -.035em;
  font-weight: 750;
}
.section-sub {
  max-width: 720px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.55;
}
.usp-header, .section-header { margin-bottom: 36px; }
.usp-grid { grid-template-columns: repeat(3, 1fr); }
.usp-card, .value-card, .solution-card, .service-card, .cert-card, .review-card, .bundle-card, .custom-card, .size-card {
  position: relative;
  padding: 24px;
  border-radius: var(--radius);
}
.usp-num {
  display: block;
  margin-bottom: 24px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}
.usp-tag, .bundle-tag, .cert-badge, .chew-note, .c-price {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  gap: 5px;
  margin-bottom: 12px;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--bg-soft);
  color: var(--ink-2);
  font-size: 12px;
  font-weight: 700;
}
.usp-icon, .c-icon, .cert-icon {
  font-size: 28px;
  margin-bottom: 16px;
}
.usp-card h3, .value-card h3, .solution-card h3, .service-card h3, .bundle-body h3, .custom-card h3, .size-card h3, .contact-card h3, .lead-form h3, .inquiry-form h3 {
  color: var(--ink);
  font-size: 20px;
  line-height: 1.18;
  letter-spacing: -.015em;
  font-weight: 720;
}
.usp-card p, .value-card p, .solution-card p, .service-card p, .bundle-body p, .custom-card p, .cert-card p, .review-text, .product-story, .lead-content p, .inquiry-content p, .story-card p {
  color: var(--muted);
  font-size: 15px;
}

.product-inner, .lead-inner, .inquiry-inner, .contact-grid, .story-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
.product-media img, .story-main-img img {
  border-radius: 28px;
}
.size-table, .specs-table, table {
  width: 100%;
  max-width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #fff;
}
th {
  padding: 13px 14px;
  background: #f0f1f2;
  color: var(--ink);
  font-size: 12px;
  text-align: left;
  text-transform: uppercase;
  letter-spacing: .08em;
}
td {
  padding: 13px 14px;
  border-top: 1px solid var(--line);
  color: var(--ink-2);
  font-size: 14px;
  vertical-align: top;
}
.size-badge, .size-badge-lg {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 38px;
  min-height: 30px;
  padding: 4px 9px;
  border-radius: 999px;
  background: var(--bg-soft);
  color: var(--ink);
  font-weight: 760;
}
.prod-tabs {
  display: inline-flex;
  gap: 4px;
  padding: 5px;
  margin-bottom: 34px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--bg-soft);
}
.prod-tab {
  border: 0;
  border-radius: 999px;
  padding: 11px 18px;
  background: transparent;
  color: var(--muted);
  font-weight: 700;
  cursor: pointer;
}
.prod-tab.active {
  background: #fff;
  color: var(--ink);
  box-shadow: 0 4px 14px rgba(0,0,0,.08);
}
.tab-content { display: none; }
.tab-content.active { display: block; }
.sizes-grid { grid-template-columns: repeat(3, 1fr); margin-top: 24px; }
.size-card .weight { color: var(--green); font-weight: 720; }
.breeds { color: var(--muted); font-size: 13px; }
.bundle-grid, .custom-grid { grid-template-columns: repeat(3, 1fr); }
.bundle-card { overflow: hidden; padding: 0; }
.bundle-img { height: 210px; border-width: 0 0 1px; border-radius: 0; box-shadow: none; }
.bundle-body { padding: 24px; }
.bundle-specs, .inquiry-checklist, .lead-perks {
  padding: 0;
  list-style: none;
}
.bundle-specs li, .inquiry-checklist li, .lead-perks li {
  margin: 8px 0;
  color: var(--ink-2);
  font-size: 14px;
}

.proof-section, footer {
  background: #111312;
  color: #fff;
}
.proof-section .section-title, .proof-section h2, .proof-section h3, footer h4 { color: #fff; }
.proof-section .section-sub, footer p, footer a { color: rgba(255,255,255,.68); }
.factory-grid { grid-template-columns: repeat(4, 1fr); margin-bottom: 24px; }
.factory-card, .shipping-card {
  overflow: hidden;
  border-radius: 22px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.12);
}
.factory-img, .shipping-img {
  aspect-ratio: 4 / 3;
  border: 0;
  border-radius: 0;
  box-shadow: none;
}
.factory-label, .shipping-label {
  padding: 13px 14px;
  color: rgba(255,255,255,.86);
  font-size: 13px;
  font-weight: 700;
}
.shipping-row, .certs-row, .reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.cert-card, .review-card {
  background: rgba(255,255,255,.08);
  border-color: rgba(255,255,255,.12);
}
.review-stars { color: #ffd056; letter-spacing: .08em; }
.review-author { display: flex; gap: 12px; align-items: center; margin-top: 18px; }
.review-avatar {
  width: 40px;
  height: 40px;
  border-radius: 999px;
  display: grid;
  place-items: center;
  background: rgba(255,255,255,.1);
}
.review-info strong { color: #fff; display: block; }
.review-info span { color: rgba(255,255,255,.55); font-size: 13px; }

.lead-section, .inquiry-section, .usp-section, .services-section, .values-section, .timeline-section {
  background: var(--bg-soft);
}
.lead-form, .inquiry-form, .contact-card {
  padding: 30px;
  border-radius: var(--radius);
  background: #fff;
}
.form-row, .form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.form-group { margin-bottom: 15px; }
.form-group label, label {
  display: block;
  color: var(--ink-2);
  font-size: 13px;
  font-weight: 700;
}
input, select, textarea {
  width: 100%;
  margin-top: 6px;
  padding: 13px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 13px;
  background: #fff;
  color: var(--ink);
  outline: none;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--green);
  box-shadow: 0 0 0 4px rgba(22,114,58,.1);
}
.size-checks {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-top: 8px;
}
.size-check {
  display: flex;
  gap: 7px;
  align-items: center;
  padding: 9px 10px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--bg-soft);
}
.size-check input { width: auto; margin: 0; accent-color: var(--green); }
.form-privacy, .form-sub { color: var(--muted); font-size: 13px; }

.social-inner {
  grid-template-columns: 1fr 1fr;
  align-items: center;
}
.social-links {
  display: grid;
  gap: 12px;
}
.social-link {
  display: flex;
  gap: 14px;
  align-items: center;
  padding: 15px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #fff;
}
.social-link-icon {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  background: var(--bg-soft);
}
.social-link-text strong { display: block; color: var(--ink); }
.social-link-text span { color: var(--muted); font-size: 13px; }
.social-photo img, .review-photo {
  border-radius: 24px;
}

.hub-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}
.hub-tab {
  display: inline-flex !important;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 11px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
  box-shadow: 0 5px 18px rgba(0,0,0,.04);
}
.eco-grid, .solution-grid {
  display: grid !important;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: 34px;
}
.eco-card, .sol-card, .pain-box {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff !important;
  box-shadow: var(--shadow-soft);
}
.eco-icon, .sol-icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  margin-bottom: 18px;
  border-radius: 16px;
  background: var(--green-xlight);
  font-size: 24px;
}
.eco-card h4, .sol-card h3, .hub-header h2, .rfq-content h2 {
  color: var(--ink);
  letter-spacing: -.02em;
}
.eco-card h4, .sol-card h3 {
  font-size: 19px;
  line-height: 1.2;
}
.eco-card p, .sol-card p, .pain-box p, .hub-section p {
  color: var(--muted);
  font-size: 15px;
}
.hub-section {
  padding: 76px 0;
  background: #fff;
}
.hub-section:nth-of-type(even) {
  background: var(--bg-soft);
}
.hub-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, .78fr);
  gap: 44px;
  align-items: center;
}
.hub-header h2 {
  font-size: clamp(32px, 4vw, 54px);
  line-height: 1.05;
}
.hub-tag {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  margin-bottom: 12px;
  padding: 6px 11px;
  border-radius: 999px;
  background: #111312;
  color: #fff;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.tag-amazon { background: #1d1d1f; }
.tag-eco { background: var(--green); }
.tag-wholesale { background: #31516f; }
.tag-startup { background: #7a4b18; }
.hub-visual {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: #fff;
  box-shadow: var(--shadow-soft);
}
.hub-visual img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 5;
  object-fit: cover;
}
.pain-box {
  margin-top: 28px;
  background: #fff7ed !important;
  border-color: rgba(201,154,40,.28);
}
.flow-steps, .qc-flow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 28px;
}
.flow-step, .qc-step {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: #fff;
  box-shadow: var(--shadow-soft);
}
.flow-step-num, .qc-num {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  margin-bottom: 14px;
  border-radius: 999px;
  background: #111312;
  color: #fff;
  font-weight: 800;
  font-size: 13px;
}
.qc-num { background: var(--green); }
.rfq-section {
  padding: 86px 0;
  background: #111312;
  color: #fff;
}
.rfq-inner {
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(360px, 1.08fr);
  gap: 44px;
  align-items: start;
}
.rfq-content h2 { color: #fff; }
.rfq-content p, .rfq-perks li { color: rgba(255,255,255,.7); }
.rfq-perks {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 10px;
}
.rfq-form {
  padding: 30px;
  border: 1px solid rgba(255,255,255,.14);
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
  box-shadow: 0 24px 70px rgba(0,0,0,.24);
}
.bottom-line {
  display: block;
  margin-top: 14px;
  color: var(--muted);
  font-size: 13px;
}

.info-bar {
  padding: 18px 0;
  background: #f0f1f2;
}
.info-bar-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 22px;
  justify-content: center;
}
.info-item {
  color: var(--ink-2);
  font-size: 13px;
}
footer { padding: 64px 0 28px; }
.footer-top {
  display: grid;
  grid-template-columns: 1.3fr .9fr .9fr .9fr 1.1fr;
  gap: 36px;
}
.footer-brand img { width: 42px; height: 42px; object-fit: contain; }
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col li, .footer-col p { margin: 8px 0; }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  margin-top: 40px;
  padding-top: 22px;
  border-top: 1px solid rgba(255,255,255,.12);
  color: rgba(255,255,255,.42);
  font-size: 12px;
}
.wa-float {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 100;
}
.wa-float a {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  background: #1f8f4d;
  color: #fff;
  box-shadow: 0 16px 40px rgba(31,143,77,.3);
  font-weight: 800;
  font-size: 0;
}
.wa-float a::before {
  content: "WA";
  font-size: 14px;
  letter-spacing: .02em;
}

@media (max-width: 980px) {
  .hamburger { display: block; }
  .nav-links {
    position: absolute;
    top: 64px;
    left: 22px;
    right: 22px;
    display: none;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: 20px;
    background: rgba(255,255,255,.94);
    box-shadow: var(--shadow);
  }
  .nav-links.open { display: grid; }
  .nav-links a { width: 100%; justify-content: center; }
  .hero-inner, .product-inner, .lead-inner, .inquiry-inner, .contact-grid, .story-grid, .social-inner {
    grid-template-columns: 1fr;
  }
  .hero-visual-stack { min-height: auto; }
  .hero-proof-img, .hero-float-badge, .hero-moq-pill, .hero-proof-label { position: static; margin-top: 12px; width: 100%; }
  .hero-main-img { aspect-ratio: 16 / 10; }
  .usp-grid, .factory-grid, .shipping-row, .certs-row, .reviews-grid, .bundle-grid, .custom-grid, .sizes-grid, .solutions-grid, .service-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .eco-grid, .solution-grid, .flow-steps, .qc-flow {
    grid-template-columns: repeat(2, 1fr);
  }
  .hub-header, .rfq-inner {
    grid-template-columns: 1fr;
  }
  .footer-top { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .inner, .footer-inner, .info-bar-inner, .nav-inner, .hero-inner, .page-hero .inner {
    width: min(100% - 28px, var(--max));
  }
  section { padding: 58px 0; }
  .hero, .page-hero { padding-top: 132px; min-height: auto; }
  #pg, #spec { padding-top: 98px; }

  .hero h1, .page-hero h1 { font-size: 43px; letter-spacing: -.035em; }
  .hero-sub, .page-hero p { font-size: 18px; }
  .hero-stat-strip, .usp-grid, .factory-grid, .shipping-row, .certs-row, .reviews-grid, .bundle-grid, .custom-grid, .sizes-grid, .solutions-grid, .service-grid, .form-row, .form-grid, .size-checks {
    grid-template-columns: 1fr;
  }
  .eco-grid, .solution-grid, .flow-steps, .qc-flow {
    grid-template-columns: 1fr;
  }
  .hub-tabs {
    display: grid;
  }
  .hub-tab {
    justify-content: center;
  }
  .prod-tabs { display: grid; border-radius: 18px; }
  .footer-top, .footer-bottom { grid-template-columns: 1fr; display: grid; }
  .info-bar-inner { justify-content: flex-start; }
  table {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
}

/* ban F 29-08-2026 - lien ket noi dung + dai dieu huong */
.related-section{padding:54px 0;border-top:1px solid #e5e5e7;background:#fff}
.related-section h2{font-size:22px;margin:0 0 18px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.router-section{padding:28px 0 4px}
.router-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.related-grid a,.router-grid a{display:block;padding:16px 18px;border:1px solid #e5e5e7;border-radius:14px;text-decoration:none;color:#1d1d1f;background:#fff}
.related-grid a:hover,.router-grid a:hover{border-color:#1d1d1f}
.related-grid b,.router-grid b{display:block;font-size:15px;margin-bottom:5px}
.related-grid span,.router-grid span{display:block;font-size:13px;color:#6e6e73;line-height:1.45}
@media(max-width:1000px){.related-grid,.router-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.related-grid,.router-grid{grid-template-columns:1fr}}

/* ban F2 29-08-2026 - anh trong noi dung */
.page-photo{margin:34px 0 32px}
.page-photo img{width:auto;max-width:100%;height:auto;max-height:min(72vh,720px);object-fit:contain;margin-inline:auto;border-radius:16px;display:block}
.page-photo figcaption{font-size:13px;color:#6e6e73;margin-top:9px;line-height:1.5}
.doc-proof{max-width:560px;margin-left:auto;margin-right:auto}
.doc-proof img{max-height:none;object-fit:contain;background:#fff;border:1px solid #e3e3e8;border-radius:8px}

/* ===== .faq-std accordion + .warn box — added 30/08/2026 =====
   .faq-std / details / summary and .warn had no rules at all: 15 FAQ blocks on
   13 pages and 3 warning boxes rendered as raw browser default. Values below
   deliberately mirror the #faq block already inline on index.html so the whole
   site uses one accordion design. */
.faq-std{max-width:860px;margin:30px 0 4px;border-top:1px solid var(--line)}
.faq-std details{border-bottom:1px solid var(--line)}
.faq-std summary{list-style:none;cursor:pointer;position:relative;padding:20px 44px 20px 0;
  font-weight:650;font-size:clamp(17px,1.5vw,20px);line-height:1.35;color:var(--ink)}
.faq-std summary::-webkit-details-marker{display:none}
.faq-std summary::marker{content:''}
.faq-std summary::after{content:'+';position:absolute;right:8px;top:16px;font-size:26px;
  font-weight:400;color:var(--green);line-height:1}
.faq-std details[open] summary{color:var(--green)}
.faq-std details[open] summary::after{content:'\2212'}
.faq-std summary:focus-visible{outline:2px solid var(--green);outline-offset:3px;border-radius:4px}
.faq-std details>p{padding:0 44px 22px 0;margin:0;color:var(--ink-2);font-size:16.5px;
  line-height:1.72;max-width:72ch}
@media(max-width:640px){
  .faq-std summary{padding:18px 34px 18px 0}
  .faq-std summary::after{right:4px;top:14px}
  .faq-std details>p{padding:0 0 20px;font-size:16px}
}
.warn{background:#fdf4ec;border-left:4px solid #c9722d;padding:18px 22px;
  border-radius:0 10px 10px 0;margin:24px 0}
.warn h3{margin-top:0}
.warn p:last-child{margin-bottom:0}

/* ===== in-body links inside cards — added 30/08/2026 =====
   Contextual links in .usp-card / .value-card / .solution-card paragraphs were
   rendering in the body colour with no underline, i.e. invisible as links.
   Values match the house convention already used by #faq .faq-a a. */
.usp-card p a,.value-card p a,.solution-card p a,.service-card p a,
.bundle-body p a,.custom-card p a,.cert-card p a,.size-card p a{
  color:var(--green,#16723a);text-decoration:underline;
  text-underline-offset:2px;text-decoration-thickness:1px}
.usp-card p a:hover,.value-card p a:hover,.solution-card p a:hover,.service-card p a:hover,
.bundle-body p a:hover,.custom-card p a:hover,.cert-card p a:hover,.size-card p a:hover{
  text-decoration-thickness:2px}

/* dot7 30/08: chuyen ngon ngu hien thi duoc cho nguoi doc (hreflang chi noi voi Google) */
.lang-switch{display:flex;flex-wrap:wrap;gap:4px 8px;align-items:baseline;margin:0 0 28px;padding:11px 15px;font-size:14.5px;line-height:1.5;color:var(--muted);background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius-sm)}
.lang-switch span{font-weight:600;color:var(--ink-2)}
.lang-switch a{color:var(--green-dark);text-decoration:underline;text-underline-offset:2px;text-decoration-thickness:1px}
.lang-switch a:hover{text-decoration-thickness:2px}
@media (max-width:640px){.lang-switch{font-size:13.5px;padding:10px 13px;margin-bottom:22px}}
/* dot7 30/08: nav co dinh cao 99px -> moi neo #id phai chua cho, khong thi tieu de bi che */
[id]{scroll-margin-top:118px}
@media (max-width:640px){[id]{scroll-margin-top:96px}}
/* dot7 30/08: anh giay to dang doc — .page-photo img dung object-fit:cover + max-height 560px nen cat mat dau va chan to giay */
.page-photo.doc{text-align:center}
.page-photo.doc img{object-fit:contain;height:auto;max-height:none;width:auto;max-width:min(100%,540px);margin:0 auto;display:block}
/* dot7 30/08: .story-visual img nhan width tu CSS nhung height tu thuoc tinh HTML -> anh ngang 1448x1086 bi bop con 554x1086. height:auto tra lai ty le that */
.story-visual img{width:100%;height:auto;display:block;object-fit:contain}


/* dot8 31/08: luoi anh thung carton that cho trang Amazon FBA */
.pack-h3{font-size:clamp(20px,2.4vw,26px);line-height:1.25;margin:34px 0 10px}
.pack-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:22px 0 8px}
.pack-fig{margin:0}
.pack-fig img{width:100%;height:auto;aspect-ratio:4/5;object-fit:cover;border-radius:14px;display:block;background:var(--bg-soft)}
.pack-fig figcaption{margin-top:9px;font-size:14px;line-height:1.55;color:var(--muted)}
@media (max-width:860px){.pack-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:520px){.pack-grid{grid-template-columns:1fr}}

.dog-grid{grid-template-columns:repeat(4,1fr)}
.dog-grid .pack-fig img{aspect-ratio:1/1}
@media (max-width:860px){.dog-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:520px){.dog-grid{grid-template-columns:1fr}}