/* KeyOneStore: visual theme for the existing homepage.
 * Load AFTER site.min.css and buy-actions.css.
 * Original texts, images, section order, links and application JS are retained.
 * The hero icon is replaced in HTML with the existing win11-pro.jpg photo.
 * Typography, spacing, card composition and responsive grids are redesigned.
 */
:root {
  --ms-blue: #0078D4;
  --ms-blue-hover: #096bbb;
  --ms-blue-dark: #0862a5;
  --ms-blue-tint: #eaf5ff;
  --ms-blue-tint2: #f3f9ff;
  --bg: #f9fcff;
  --bg-alt: #f0f7fd;
  --bg-gray: #edf4fb;
  --card: #ffffff;
  --border: #dce8f2;
  --border-strong: #bed3e5;
  --text: #182d46;
  --text-secondary: #445c75;
  --text-muted: #5d7187;
  --text-dim: #73869b;
  --green: #197346;
  --green-bg: #e8f6ed;
  --radius: 24px;
  --radius-sm: 12px;
  --radius-lg: 28px;
  --shadow-sm: 0 12px 35px rgba(39,89,135,.07);
  --shadow-md: 0 18px 48px rgba(39,89,135,.11);
  --shadow-lg: 0 28px 72px rgba(39,89,135,.15);
}

html, body, main { background: #f9fcff; color: var(--text); }
.nav {
  background: rgba(255,255,255,.86);
  border-bottom-color: rgba(113,158,196,.19);
  box-shadow: 0 10px 36px rgba(41,91,137,.07);
  backdrop-filter: blur(24px) saturate(1.25);
  -webkit-backdrop-filter: blur(24px) saturate(1.25);
}
/* Keep the original wordmark color and all original SVG fills intact. */
.nav-logo, .footer-logo { color: #242424; }
.nav-mobile-panel {
  background: rgba(255,255,255,.98);
  border-bottom-color: var(--border);
  box-shadow: var(--shadow-md);
}
.cart-btn { background: #eff7fe; border-radius: 12px; color: #24547b; }
.cart-btn:hover { background: #deeffd; }
.cart-badge { background: #e16e35; }
.hero {
  background:
    radial-gradient(ellipse at 7% 23%, rgba(73,170,244,.17), transparent 49%),
    radial-gradient(ellipse at 88% 35%, rgba(255,174,129,.20), transparent 43%),
    linear-gradient(160deg, #ffffff 2%, #f4faff 59%, #fff9f5);
}
.win-tile { border-radius: 50%; opacity: .065; filter: blur(44px); }
.hero-badge {
  background: rgba(255,255,255,.82);
  border-radius: 999px;
  box-shadow: inset 0 0 0 1px #d7e9f7, 0 6px 22px rgba(42,104,157,.06);
  color: #166da9;
}
.hero h1 em {
  background: linear-gradient(105deg, #0877cd 4%, #268fda 56%, #ca7252 98%);
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
}
.hero-card {
  background: linear-gradient(140deg, rgba(255,255,255,.97), rgba(249,252,255,.94) 60%, rgba(255,245,236,.85));
  border-color: rgba(194,219,239,.75);
  box-shadow: 0 32px 75px rgba(47,102,148,.16), inset 0 0 0 1px rgba(255,255,255,.9);
}
.hero-card::before {
  background: linear-gradient(90deg, #73c6f6, #298cdb 46%, #ffb187);
}
.hero-float-tag {
  background: linear-gradient(120deg, #0879d0, #259be6);
  border-radius: 12px;
  box-shadow: 0 10px 24px rgba(20,118,195,.22);
}
.hero-stats { border-top-color: rgba(122,164,199,.22); }
.trust-bar {
  background: linear-gradient(110deg, #ffffff, #f8fcff 60%, #fffbf7);
  border-bottom-color: var(--border);
  box-shadow: 0 12px 30px rgba(45,96,139,.045);
}
.section { background: transparent; }
#products {
  background: radial-gradient(ellipse at 100% 35%, rgba(180,221,253,.10), transparent 54%);
}
#promotions {
  background: radial-gradient(ellipse at 95% 36%, rgba(255,197,160,.14), transparent 55%), linear-gradient(180deg, #f9fcff, #f0f8ff 48%, #f9fcff);
}
.how-section {
  background: linear-gradient(135deg, #eff8ff, #f9fcff 62%, #fff9f3);
}
.section-label, .section-kicker { color: #1478bd; }
.product-card, .product-card.featured {
  background: #fff;
  border-color: #dce8f2;
  box-shadow: var(--shadow-sm);
}
.product-card.featured { border-color: #afcee8; }
.product-card:hover, .adv-card:hover, .guarantee-card:hover, .blog-card:hover {
  border-color: #8dbfe4;
  box-shadow: var(--shadow-md);
}
.product-card.featured::after {
  background: linear-gradient(110deg, #087acb, #199ce4);
  box-shadow: 0 5px 16px rgba(17,105,174,.17);
}
.product-accent-line { opacity: .8; }
.discount-tag, .discount-percent {
  color: #ac4a22;
  background: #fff0e5;
  border-radius: 8px;
}
.discount-percent-green { color: #197346; background: #e8f6ed; }
.promo-badge, .promo-delivery-badge {
  background: linear-gradient(120deg, #087acb, #168cd5);
  border-radius: 9px;
}
.promo-discount-badge {
  background: linear-gradient(120deg, #cf551f, #e7783e);
  border-radius: 9px;
}
.btn-primary, .nav-links a.nav-cta, .nav-mobile-cta, .product-buy,
.product-buy-now, .card-buy-btn, .support-btn {
  background: linear-gradient(120deg, #0876ce, #168dde);
  border-radius: 12px;
  box-shadow: 0 9px 23px rgba(11,116,194,.17);
  color: #fff;
}
.btn-primary:hover, .nav-links a.nav-cta:hover, .product-buy:hover,
.product-buy-now:hover, .card-buy-btn:hover {
  background: linear-gradient(120deg, #086ab7, #127ccb);
}
.product-actions .product-cart-icon {
  background: #f0f7fd;
  color: #146aa7;
  box-shadow: inset 0 0 0 1px #cfe2f2;
}
.product-actions .product-cart-icon:hover { background: #e3f1fc; }
.btn-ghost {
  background: rgba(255,255,255,.82);
  border-color: #cbdeed;
  color: #405d78;
  box-shadow: 0 6px 20px rgba(48,98,139,.04);
}
.btn-ghost:hover { background: #f1f8fe; border-color: #98c4e6; }
.step, .adv-card, .guarantee-card, .help-feature-card, .blog-card, .seo-text {
  background: linear-gradient(145deg, #ffffff, #fbfdff);
  border-color: #dce8f2;
  border-radius: 24px;
  box-shadow: var(--shadow-sm);
}
.step-icon, .adv-icon, .help-feature-icon {
  background: linear-gradient(140deg, #e7f5ff, #f5faff);
  border-radius: 16px;
}
.adv-card:nth-child(3n + 2) { background: linear-gradient(145deg, #fff, #fff8f1); }
.adv-card:nth-child(3n) { background: linear-gradient(145deg, #fff, #f5f6ff); }
.help-box {
  background: radial-gradient(ellipse at 0 0, #e7f4ff, transparent 70%), linear-gradient(130deg, #fff, #fffbf7);
  border-color: #d4e5f3;
  border-radius: 28px;
  box-shadow: var(--shadow-md);
}
.help-feature-card { border-top-color: #7ebce7; }
.help-feature-card:nth-child(4) { border-top-color: #83c7a0; }
.faq-item {
  background: #fff;
  border-color: #dce8f2;
  border-radius: 16px;
  box-shadow: 0 5px 19px rgba(44,96,139,.035);
}
.faq-q:hover { background: #f4faff; }
.faq-item.open { border-color: #9fc8e7; box-shadow: var(--shadow-sm); }
.faq-item.open .faq-q { background: #f1f8ff; }
.faq-q-icon, .faq-tag { border-radius: 8px; }
.guarantee-card:nth-child(even) { background: linear-gradient(140deg, #fff, #fff9f4); }
.cta-section { background: transparent; }
.cta-inner {
  background: radial-gradient(ellipse at 96% 5%, rgba(255,178,130,.5), transparent 53%), linear-gradient(115deg, #0873c7, #188bd5 70%, #55a6dd);
  border-radius: 28px;
  box-shadow: 0 25px 65px rgba(24,107,173,.2);
}
.cta-inner::before { background: linear-gradient(90deg, #6bc1f4, #e4eef9, #ffc299); }
.cta-buttons .btn-primary { background: #fff; color: #0867ae; }
.cta-buttons .btn-ghost { background: rgba(255,255,255,.1); color: #fff; }
footer { background: linear-gradient(160deg, #f0f7fd, #f9fcff 58%, #fffaf6); }
.footer-legal { color: #65798e; }
.cart-panel, .support-popup, .modal-box {
  background: rgba(255,255,255,.98);
  border-color: #d8e7f3;
  border-radius: 22px;
  box-shadow: var(--shadow-lg);
}
.modal-overlay { background: rgba(29,54,81,.34); backdrop-filter: blur(8px); }
.modal-body input:not([type=checkbox]) { background: #f9fcff; color: var(--text); border-color: #cbdfee !important; border-radius: 12px !important; }
.support-popup-close, .cart-panel-close { background: #edf5fc; }
#scrollTopBtn { background: #147eca; box-shadow: var(--shadow-md); }

/* Composition revision: the expressive first concept, with the complete store content. */
.nav { height: 74px; padding-inline: max(24px, calc((100vw - 1460px)/2)); }
.nav-links { gap: clamp(10px, 1.1vw, 18px); }
.nav-links a { font-weight: 500; }
.nav-mobile-panel { top: 74px; }
.cart-panel { top: 84px; }
.breadcrumbs { max-width: 1304px; padding-top: 92px; padding-bottom: 0; font-size: 12px; }
.hero { padding: 128px 32px 100px; }
.hero-inner { max-width: 1240px; grid-template-columns: minmax(0,1.13fr) minmax(0,1fr); gap: 66px; }
.hero-left { min-width: 0; }
.hero-bg {
  background-image: linear-gradient(rgba(48,127,191,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(48,127,191,.035) 1px, transparent 1px);
  background-size: 76px 76px;
  mask-image: linear-gradient(#000, transparent);
}
.hero-badge { padding: 10px 14px; font-size: 11px; letter-spacing: .04em; margin-bottom: 25px; }
.hero h1 { font-size: clamp(46px,5.25vw,74px); font-weight: 750; line-height: 1.015; letter-spacing: -.055em; margin-bottom: 26px; }
.hero h1 em { color: var(--text); background: none; }
#hero-price-from {
  display: inline-block;
  margin-top: 10px;
  background: linear-gradient(100deg, #087bd0 5%, #269ddd 48%, #db865f 98%);
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
}
.hero-desc { font-size: 17px; line-height: 1.75; max-width: 600px; margin-bottom: 30px; }
.hero-actions { gap: 12px; }
.hero-actions .btn-primary, .hero-actions .btn-ghost { min-height: 50px; border-radius: 14px; }
.hero-stats { margin-top: 34px; padding-top: 25px; gap: 34px; }
.stat-num { font-size: 22px; font-weight: 700; }
.stat-label { font-size: 13px; }
.hero-card-wrap { width: 100%; max-width: 510px; justify-self: end; }
.hero-card { padding: 28px; border-radius: 30px; background: rgba(255,255,255,.94); box-shadow: 0 34px 90px rgba(45,97,141,.18); }
.hero-card::before { height: 0; }
.hero-product-photo { display: block; width: calc(100% + 56px); max-width: none; height: auto; margin: -28px -28px 25px; }
.hero-float-tag {
  left: 17px; top: 17px; transform: none; padding: 9px 12px; border-radius: 11px;
  background: rgba(24,45,70,.88); color: #fff; font-size: 12px; letter-spacing: 0;
  backdrop-filter: blur(10px); box-shadow: 0 8px 24px rgba(20,47,75,.18);
}
.hero-float-tag svg { color: #ffbf74; }
.hero-card h3 { font-size: 28px; font-weight: 720; line-height: 1.2; letter-spacing: -.035em; }
.hero-card-price { margin-top: 17px; margin-bottom: 10px; font-size: 34px; }
.hero-card-price .discount-tag { color: #ac4a22; }
.hero-card .card-features { margin: 17px 0 20px; }
.hero-card .card-features li { font-size: 13px; line-height: 1.45; padding: 5px 0; }
.hero-card .card-features li::before { width: 17px; height: 17px; background-size: 12px; }
.hero-card > .product-actions { margin-top: 18px; }
.hero-card > .product-actions .product-buy-now { font-size: 15px; }
.product-actions .product-buy-now { border-radius: 13px; min-height: 48px; }
.product-actions .product-cart-icon { border-radius: 13px; }
.trust-bar {
  position: relative; z-index: 2; width: min(1240px, calc(100% - 48px)); margin: -34px auto 0;
  padding: 0; border: 1px solid #e0edf7; border-radius: 24px; overflow: hidden;
  background: rgba(255,255,255,.91); box-shadow: 0 18px 46px rgba(42,93,138,.10); backdrop-filter: blur(18px);
}
.trust-bar-inner { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 0; }
.trust-item { min-height: 68px; padding: 17px 22px; font-size: 13px; font-weight: 600; border-right: 1px solid #e7eff6; }
.trust-item:nth-child(3n) { border-right: 0; }
.trust-item:nth-child(-n+3) { border-bottom: 1px solid #e7eff6; }
.trust-icon { flex: 0 0 23px; }
.section { padding: 96px 32px; scroll-margin-top: 82px; }
.section-inner { max-width: 1240px; }
.section-label, .section-kicker { font-size: 12px; font-weight: 750; letter-spacing: .1em; }
.section-title, .section-head h2 { font-size: clamp(34px,3.7vw,49px); font-weight: 720; letter-spacing: -.045em; line-height: 1.1; }
#products .section-title { max-width: 880px; }
.section-sub { max-width: 730px; font-size: 16px; line-height: 1.7; margin-bottom: 38px; }
.products-grid { grid-template-columns: repeat(3,minmax(0,1fr)); gap: 22px; }
.product-card { padding: 24px; border-radius: 25px; box-shadow: 0 16px 42px rgba(45,96,139,.075); }
.product-visual { width: calc(100% + 48px); margin: -24px -24px 23px; aspect-ratio: 960/621; }
.product-visual img { object-fit: contain; background: #f4f9fe; }
.product-name { font-size: 22px; font-weight: 700; line-height: 1.25; letter-spacing: -.03em; min-height: 55px; margin-bottom: 9px; }
.product-version { font-size: 14px; margin-bottom: 18px; }
.product-price { font-size: 29px; letter-spacing: -.04em; }
.product-rating { margin-bottom: 17px; }
.product-delivery { padding-top: 5px; margin-bottom: 18px; font-weight: 500; }
.product-card .details-link { font-size: 13px; font-weight: 500; color: #617e98; margin-top: 15px; }
.product-card.featured::after { top: 45px; right: -42px; font-size: 10px; }
#promotionsGrid { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 26px; }
.promo-visual { width: calc(100% + 48px); margin: -24px -24px 25px; }
.promo-banner-img { object-fit: contain; }
.promo-card .product-name { min-height: 55px; max-width: 470px; }
.promo-subtitle { font-size: 14px; }
.promo-card .price-row { margin: 22px 0; }
.promo-delivery-badge, .promo-discount-badge { top: 15px; }
.step { padding: 30px 26px; }
.step-num { margin-bottom: 26px; color: #7990a6; }
.step-icon { margin-bottom: 30px; }
.step h4 { font-size: 21px; font-weight: 700; letter-spacing: -.025em; }
.step p, .adv-card p, .guarantee-card p { font-size: 15px; line-height: 1.7; }
.adv-card, .guarantee-card { padding: 32px; }
.adv-icon { margin-bottom: 35px; }
.adv-card h4 { font-weight: 700; letter-spacing: -.025em; }
.faq-grid { gap: 0 22px; }
.faq-item { margin-bottom: 14px; }
.faq-q { padding: 22px; }
.faq-tag { letter-spacing: .05em; }
.help-section { padding-top: 54px; padding-bottom: 54px; }
.help-box { padding: 46px; }
.help-feature-card { padding: 28px 24px; }
.help-box .section-title { font-size: clamp(30px,3vw,42px); }
.home-full-seo .seo-text { padding: 40px; }
.home-full-seo h2 { font-size: 30px; letter-spacing: -.025em; line-height: 1.2; }
.home-full-seo p { line-height: 1.85; }
.blog-card { padding: 28px; }
.blog-card h3 { font-size: 19px; line-height: 1.4; letter-spacing: -.015em; }
.blog-card p { font-size: 14px; line-height: 1.75; }
.cta-section { padding-top: 54px; }
.cta-inner { max-width: 1240px; padding: 62px; }
.cta-inner h2 { font-weight: 720; letter-spacing: -.04em; }
.footer-inner { max-width: 1240px; }

@media (max-width: 1100px) {
  .hero-inner { grid-template-columns: minmax(0,1.05fr) minmax(0,1fr); gap: 32px; }
  .hero h1 { font-size: 55px; }
  .hero-badge { max-width: 100%; line-height: 1.5; }
  .hero-stats { gap: 20px; }
  .products-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .steps { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .trust-item { padding-inline: 16px; }
}
@media (max-width: 850px) {
  .hero-inner { grid-template-columns: minmax(0,1fr); gap: 38px; }
  .hero-left { max-width: 690px; }
  .hero h1 { font-size: clamp(47px,7.5vw,68px); }
  .hero-card-wrap { max-width: 550px; justify-self: center; }
  .hero-desc { max-width: 690px; }
  .trust-bar-inner { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .trust-item { border-right: 0; border-bottom: 1px solid #e7eff6; }
  .trust-item:nth-child(odd) { border-right: 1px solid #e7eff6; }
  .trust-item:nth-last-child(-n+2) { border-bottom: 0; }
  .adv-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .help-box { padding: 30px; grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .nav { height: 68px; padding-inline: 18px; }
  .nav-mobile-panel { top: 68px; }
  .cart-panel { top: 78px; }
  .breadcrumbs { padding-top: 83px; padding-inline: 20px; }
  .hero { padding: 108px 20px 76px; }
  .hero h1 { font-size: clamp(40px,10.5vw,62px); }
  .hero-badge { padding: 9px 11px; font-size: 10px; }
  .hero-desc { font-size: 16px; }
  .hero-actions { flex-direction: column; }
  .hero-actions a { justify-content: center; }
  .hero-stats { gap: 16px; justify-content: space-between; }
  .stat-num { font-size: 20px; }
  .stat-label { font-size: 11px; }
  .hero-card { padding: 23px; border-radius: 24px; }
  .hero-product-photo { width: calc(100% + 46px); margin: -23px -23px 23px; }
  .hero-card h3 { font-size: 26px; }
  .hero-card .card-features li { font-size: 13px; }
  .trust-bar { width: calc(100% - 40px); border-radius: 20px; }
  .trust-bar-inner { grid-template-columns: 1fr; }
  .trust-item, .trust-item:nth-child(odd), .trust-item:nth-last-child(-n+2) { min-height: 61px; border-right: 0; border-bottom: 1px solid #e7eff6; padding: 15px 20px; }
  .trust-item:last-child { border-bottom: 0; }
  .section { padding: 72px 20px; }
  .section-title, .section-head h2 { font-size: 34px; }
  .products-grid, #promotionsGrid { grid-template-columns: minmax(0,1fr); gap: 22px; }
  .product-card { padding: 22px; }
  .product-visual, .promo-visual { width: calc(100% + 44px); margin: -22px -22px 22px; }
  .product-name, .promo-card .product-name { min-height: 0; font-size: 22px; }
  .product-version { font-size: 13px; }
  .promo-delivery-badge, .promo-discount-badge { top: 11px; }
  .steps, .adv-grid { grid-template-columns: 1fr; }
  .step, .adv-card, .guarantee-card { padding: 27px; }
  .step:not(:last-child)::after { display: none; }
  .help-box { padding: 25px; }
  .home-full-seo .seo-text { padding: 25px; }
  .home-full-seo h2 { font-size: 25px; }
  .cta-section { padding: 36px 20px 50px; }
  .cta-inner { padding: 40px 25px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

/* Reference-led refinement: centered desktop navigation and a dedicated mobile drawer. */
body { font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
.nav {
  display: grid; grid-template-columns: 180px minmax(0,1fr) 180px; gap: 18px;
  box-shadow: 0 9px 32px rgba(43,91,133,.075) !important;
}
.nav-logo { white-space: nowrap; }
.nav-links { display: flex; justify-content: center; min-width: 0; margin: 0; gap: clamp(10px,1.04vw,17px); }
.nav-links a { white-space: nowrap; font-size: 12px; color: #617188; }
.nav-links a:first-child { color: #177ac3; }
.air-header-actions { display: flex; gap: 10px; align-items: center; justify-content: flex-end; }
.air-header-actions > .nav-cta { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0 16px; border-radius: 13px; font-size: 13px; font-weight: 700; color: #fff; background: linear-gradient(120deg,#0876ce,#1998e9); box-shadow: 0 9px 22px rgba(19,121,195,.18); white-space: nowrap; }
.air-header-actions .cart-btn { width: 44px; height: 44px; margin: 0; border: 1px solid #d7e6f2; background: rgba(255,255,255,.8); }
.air-menu-toggle { display: none; }
.air-menu-backdrop[hidden], .nav-mobile-panel[hidden] { display: none !important; }
.air-menu-backdrop { position: fixed; z-index: 101; inset: 0; background: rgba(27,55,85,.23); backdrop-filter: blur(6px); }
.nav-mobile-panel {
  z-index: 102; top: 12px; left: auto; right: 12px; bottom: 12px; width: min(390px,calc(100% - 24px));
  padding: 26px; overflow-y: auto; overscroll-behavior: contain; border: 1px solid rgba(255,255,255,.9);
  border-radius: 27px; background: linear-gradient(155deg,#fff 35%,#eff8ff 83%,#fff7f0);
  box-shadow: 0 30px 90px rgba(27,61,94,.24);
}
.air-menu-head { display: flex; justify-content: space-between; align-items: center; gap: 20px; margin-bottom: 25px; }
.air-menu-eyebrow { color: #7f96aa; font-size: 10px; font-weight: 750; letter-spacing: .14em; }
.air-menu-head h2 { color: #203953; font-size: 28px; letter-spacing: -.04em; margin-top: 4px; }
.air-menu-close { display: grid; place-items: center; width: 44px; height: 44px; flex-shrink: 0; border: 1px solid #d6e6f2; border-radius: 14px; background: #f1f7fd; color: #316a94; cursor: pointer; }
.air-menu-links { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); gap: 9px; }
.nav-mobile-link { display: flex; align-items: center; min-height: 54px; padding: 13px; margin: 0; border: 1px solid #e1edf6; border-radius: 13px; background: rgba(255,255,255,.8); font-size: 14px; line-height: 1.35; color: #3c5871; }
.nav-mobile-link:nth-child(2), .nav-mobile-link:nth-child(3) { color: #136dae; background: #eaf5ff; border-color: #cce4f7; }
.nav-mobile-cta { grid-column: 1/-1; justify-content: center; margin-top: 9px; background: linear-gradient(120deg,#0876ce,#1998e9); }
.air-menu-close:hover, .nav-mobile-link:hover { background: #e5f2fd; }
.air-menu-toggle:focus-visible, .air-menu-close:focus-visible, a:focus-visible, button:focus-visible, .faq-q:focus-visible { outline: 3px solid #68b5ed; outline-offset: 4px; }

.hero-inner { grid-template-columns: minmax(0,1.1fr) minmax(0,1fr); gap: 74px; }
.hero-badge { font-size: 11px; font-weight: 700; }
.hero h1 { font-weight: 760; letter-spacing: -.06em; }
.hero-stats { padding-top: 0; border-top: none; gap: 36px; margin-top: 34px; }
.stat-num { font-size: 21px; font-weight: 750; }
.stat-label { color: #7c8da1; font-size: 12px; }
.hero-card-wrap { max-width: 510px; }
.hero-card { border: 1px solid #a9cce7; background: #fff; box-shadow: 0 28px 74px rgba(40,97,143,.16), 0 0 0 5px rgba(255,255,255,.65); }
.hero-card h3 { font-size: 27px; }
.hero-card-price { font-size: 32px; letter-spacing: -.04em; }
.hero-card .card-features { border-top: 1px solid #ebf1f6; padding-top: 13px; margin-top: 15px; }
.hero-card .card-features li { color: #5f7388; }
.hero-card .card-features li::before { background-color: #76abc8; }
.hero-card .product-buy-now { box-shadow: 0 7px 18px rgba(20,117,191,.16); }

.trust-bar { border-radius: 24px; box-shadow: 0 20px 52px rgba(44,91,134,.11); }
.trust-bar-inner { grid-template-columns: repeat(5,minmax(0,1fr)); }
.trust-item, .trust-item:nth-child(odd), .trust-item:nth-last-child(-n+2), .trust-item:nth-child(-n+3) { min-height: 94px; justify-content: center; padding: 19px 15px; border: 0; border-right: 1px solid #e8f0f7; gap: 12px; }
.trust-item:nth-child(5) { border-right: 0; }
.air-trust-label { display: flex; flex-direction: column; gap: 3px; font-size: 12px; font-weight: 400; color: #7a8b9d; }
.air-trust-label strong { font-size: 13px; font-weight: 700; color: #38546d; }
.trust-item:last-child { grid-column: 1/-1; min-height: 39px; padding: 10px; border-top: 1px solid #ecf2f7; background: #f8fbfe; }
.trust-item:last-child .air-trust-label { display: block; font-size: 11px; }
.trust-item:last-child .air-trust-label strong { font-size: inherit; font-weight: 400; color: inherit; }
.trust-item:last-child .trust-icon { flex-basis: 15px; }
.trust-item:last-child svg { width: 15px; height: 15px; color: #849bae; }

.products-grid { gap: 23px; }
.product-card { padding: 23px; border-color: #d7e5f0; border-radius: 25px; background: #fff; box-shadow: 0 12px 32px rgba(49,101,141,.06); }
.product-visual { width: calc(100% + 46px); margin: -23px -23px 23px; }
.product-name { font-size: 21px; font-weight: 690; letter-spacing: -.035em; }
.product-price { font-size: 27px; }
.product-card .details-link { text-align: left; }
.product-card.featured::after { top: 13px; right: 12px; width: auto; padding: 7px 10px; transform: none; border-radius: 9px; font-size: 9px; line-height: 1.2; letter-spacing: .07em; background: rgba(26,52,77,.88); box-shadow: none; }
.product-visual::before { left: 12px; top: 12px; max-width: calc(100% - 125px); overflow: hidden; text-overflow: ellipsis; font-size: 10px; border-radius: 9px; }
.product-visual::after { left: 20px; top: 16px; }
.promo-visual { width: calc(100% + 46px); margin: -23px -23px 25px; }
.promo-card { border-radius: 27px; }
.promo-card .product-name { font-size: 24px; }
.promo-card .product-buy-now { min-height: 49px; }

.how-section { background: linear-gradient(180deg,#f9fcff,#f1f8ff 45%,#f9fcff); }
.steps { gap: 19px; }
.step { --step-accent: #247fbd; --step-tint: #e9f5ff; --step-end: #f4faff; padding: 29px 25px; min-height: 286px; background: linear-gradient(150deg,#fff 20%,var(--step-end)); border: 1px solid #dce8f2; box-shadow: 0 12px 34px rgba(38,89,129,.055); }
.step:nth-child(2) { --step-accent: #cf7b43; --step-tint: #fff0e2; --step-end: #fff8f1; }
.step:nth-child(3) { --step-accent: #8271bd; --step-tint: #efebff; --step-end: #f8f6ff; }
.step:nth-child(4) { --step-accent: #348877; --step-tint: #e5f5ef; --step-end: #f1fbf7; }
.step-num { position: absolute; top: 30px; right: 23px; margin: 0; color: var(--step-accent); opacity: .65; font-size: 11px; letter-spacing: .08em; }
.step-icon { width: 55px; height: 55px; margin-bottom: 34px; border-radius: 17px; background: var(--step-tint); color: var(--step-accent); box-shadow: inset 0 0 0 1px rgba(255,255,255,.8), 0 7px 18px rgba(47,94,131,.06); }
.step-icon svg { width: 29px; height: 29px; }
.step h4 { font-size: 20px; margin-bottom: 13px; }
.step p { font-size: 14px; line-height: 1.75; }
.step:not(:last-child)::after { right: -13px; top: 57px; background-color: #a3c3db; width: 23px; height: 23px; box-shadow: 0 0 0 5px #f5faff; }
.adv-card { background: #fff; border-color: #dce7f0; box-shadow: 0 10px 30px rgba(42,91,132,.05); }
.adv-icon { width: 54px; height: 54px; margin-bottom: 30px; border-radius: 17px; }
.adv-icon svg { width: 29px; height: 29px; }
.adv-card:nth-child(3n + 2) .adv-icon { background: #fff0e3; color: #ce7a42; }
.adv-card:nth-child(3n) .adv-icon { background: #f0ecfc; color: #8471bb; }
.adv-card h4 { font-size: 21px; font-weight: 680; }

#faq .section-inner { display: grid; grid-template-columns: minmax(0,1.5fr) minmax(0,1fr); column-gap: 60px; }
#faq .section-label { grid-column: 1/-1; }
#faq .section-title { max-width: 760px; }
#faq .section-sub { align-self: end; margin-bottom: 22px; max-width: 330px; justify-self: end; }
.faq-grid { grid-column: 1/-1; display: block; margin-top: 20px; border: 1px solid #d7e5f0; border-radius: 25px; background: #fff; box-shadow: 0 18px 50px rgba(43,92,133,.07); overflow: hidden; }
.faq-col { display: contents; }
.faq-item { margin: 0; border: none; border-bottom: 1px solid #e6eef5; border-radius: 0; box-shadow: none; }
.faq-col:last-child .faq-item:last-child { border-bottom: 0; }
.faq-item.open { box-shadow: none; }
.faq-q { min-height: 79px; align-items: center; padding: 23px 28px; font-size: 15px; font-weight: 650; }
.faq-q-inner { align-items: center; gap: 16px; }
.faq-q-text { display: flex; align-items: center; gap: 18px; }
.faq-tag { min-width: 98px; text-align: center; margin: 0; padding: 5px 8px; font-size: 9px; font-weight: 600; }
.faq-q-icon { width: 28px; height: 28px; margin: 0; }
.faq-q::after { width: 28px; height: 28px; display: grid; place-items: center; border-radius: 9px; background: #f1f7fc; font-size: 19px; }
.faq-a { padding: 0 76px 24px; max-width: 1060px; font-size: 15px; }
.cta-inner { display: grid; grid-template-columns: minmax(0,1fr) auto; column-gap: 45px; text-align: left; padding: 52px; background: radial-gradient(ellipse at 110% -35%,#ffbb89,transparent 65%),linear-gradient(115deg,#0874cd,#1995df); }
.cta-inner h2 { grid-column: 1; font-size: 42px; }
.cta-inner p { grid-column: 1; margin: 0; max-width: 640px; font-size: 15px; }
.cta-buttons { grid-column: 2; grid-row: 1/3; flex-direction: column; align-self: center; gap: 10px; }
.cta-buttons a { justify-content: center; min-height: 48px; }

@media (min-width: 1500px) { .nav-links a { font-size: 13px; } }
@media (max-width: 1279px) {
  .nav { grid-template-columns: minmax(0,1fr) auto; gap: 15px; }
  .nav-links { display: none; }
  .air-menu-toggle { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 44px; padding: 0 12px; border: 1px solid #cbdeee; border-radius: 13px; background: linear-gradient(130deg,#f6fbff,#eaf5fe); color: #267bb8; font: inherit; font-size: 13px; font-weight: 650; cursor: pointer; }
}
@media (max-width: 1100px) {
  .hero-inner { gap: 38px; }
  .trust-item { padding-inline: 10px; gap: 8px; }
  .air-trust-label { font-size: 11px; }
  .air-trust-label strong { font-size: 12px; }
  .step:nth-child(2)::after { display: none; }
}
@media (max-width: 850px) {
  .hero-inner { grid-template-columns: minmax(0,1fr); gap: 42px; }
  .hero-card-wrap { max-width: 550px; }
  .trust-bar-inner { grid-template-columns: repeat(3,minmax(0,1fr)); }
  .trust-item { min-height: 88px; }
  .trust-item:nth-child(3) { border-right: none; }
  .trust-item:nth-child(4), .trust-item:nth-child(5) { border-top: 1px solid #e8f0f7; }
  .trust-item:nth-child(5) { grid-column: 2/4; }
  .trust-item:last-child { grid-column: 1/-1; }
  #faq .section-inner { display: block; }
  #faq .section-sub { max-width: 650px; }
  .cta-inner { display: block; padding: 38px; }
  .cta-inner h2 { font-size: 35px; }
  .cta-buttons { margin-top: 26px; flex-direction: row; justify-content: flex-start; }
}
@media (max-width: 640px) {
  .nav { padding-inline: 16px; }
  .air-header-actions { gap: 8px; }
  .air-header-actions > .nav-cta { display: none; }
  .air-header-actions .cart-btn { width: 44px; height: 44px; }
  .nav-logo { font-size: 15px; gap: 7px; }
  .nav-logo .logo-svg { width: 27px; height: 27px; }
  .air-menu-toggle { gap: 7px; padding-inline: 10px; font-size: 12px; }
  .air-menu-toggle svg { width: 18px; height: 18px; }
  .nav-mobile-panel { padding: 23px; }
  .hero { padding-top: 106px; }
  .hero h1 { font-size: clamp(39px,10.5vw,62px); }
  .hero-stats { gap: 15px; }
  .stat-num { font-size: 20px; }
  .stat-label { font-size: 11px; }
  .trust-bar-inner { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .trust-item, .trust-item:nth-child(odd), .trust-item:nth-last-child(-n+2), .trust-item:nth-child(-n+3) { min-height: 89px; padding: 16px 12px; border: 0; justify-content: flex-start; border-bottom: 1px solid #e9f0f6; gap: 9px; }
  .trust-item:nth-child(odd) { border-right: 1px solid #e9f0f6; }
  .trust-item:nth-child(5) { grid-column: 1/-1; justify-content: center; border-right: 0; min-height: 70px; }
  .trust-item:last-child { grid-column: 1/-1; min-height: 44px; justify-content: center; text-align: center; border: 0; }
  .product-card { padding: 22px; }
  .product-visual,.promo-visual { width: calc(100% + 44px); margin-left: -22px; margin-right: -22px; margin-top: -22px; }
  .product-card.featured::after { right: 10px; font-size: 9px; padding: 6px 8px; }
  .product-visual::before { max-width: calc(100% - 118px); }
  .promo-card .product-name { font-size: 22px; }
  .step { min-height: 245px; padding: 27px; }
  .step-icon { margin-bottom: 26px; }
  .step:not(:last-child)::after { display: none; }
  .faq-q { padding: 19px 17px; font-size: 14px; }
  .faq-q-inner { gap: 11px; }
  .faq-q-text { flex-direction: column; align-items: flex-start; gap: 7px; }
  .faq-tag { min-width: 0; text-align: left; font-size: 9px; }
  .faq-q::after { flex-shrink: 0; }
  .faq-a { padding: 0 22px 23px; font-size: 14px; }
  .cta-inner { padding: 36px 25px; border-radius: 25px; }
  .cta-inner h2 { font-size: 33px; }
  .cta-buttons { flex-direction: column; }
}

/* All original promotions remain available; only their presentation changes. */
.air-offer-tabs { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 8px; padding: 7px; margin-bottom: 18px; border: 1px solid #d9e8f3; border-radius: 21px; background: #ecf5fd; }
.air-offer-tabs button { position: relative; min-height: 64px; padding: 11px 19px; border: 1px solid transparent; border-radius: 15px; color: #62798e; background: transparent; text-align: left; cursor: pointer; font: inherit; }
.air-offer-tabs button span { display: block; font-size: 14px; font-weight: 650; }
.air-offer-tabs button small { display: block; font-size: 12px; margin-top: 3px; }
.air-offer-tabs button[aria-selected="true"] { background: #fff; border-color: #d6e8f6; color: #24689b; box-shadow: 0 7px 20px rgba(45,99,143,.09); }
.air-offer-tabs button[aria-selected="true"]::after { content: ''; position: absolute; right: 14px; top: 16px; width: 5px; height: 5px; border-radius: 50%; background: #39a3e9; }
.air-offer-tabs button:hover { color: #247dbb; }
#promotionsGrid.air-offers { display: block; }
.air-offers .promo-card { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1.1fr); padding: 0; border-radius: 25px; box-shadow: 0 15px 42px rgba(45,95,139,.08); }
.air-offers .promo-card[hidden] { display: none !important; }
.air-offers .promo-visual { width: 100%; margin: 0; height: 100%; min-height: 310px; aspect-ratio: auto; border: 0; border-right: 1px solid #e0ebf4; background: #f4f9fd; }
.air-offers .promo-banner-img { height: 100%; object-fit: contain; background: transparent; }
.air-promo-body { padding: 28px 32px; display: flex; flex-direction: column; justify-content: center; }
.air-promo-body .product-name { font-size: 27px; line-height: 1.2; letter-spacing: -.035em; margin-bottom: 10px; min-height: 0; }
.air-promo-body .promo-subtitle { font-size: 14px; line-height: 1.6; }
.air-promo-body .price-row { margin: 20px 0 18px; }
.air-promo-body .product-price { font-size: 29px; }
.air-promo-body .product-actions { margin-top: 0; }
@media (max-width: 850px) {
  .air-offers .promo-card { grid-template-columns: minmax(0,1fr); }
  .air-offers .promo-visual { height: auto; min-height: 0; aspect-ratio: 16/9; border-right: 0; border-bottom: 1px solid #e0ebf4; }
  .air-offer-tabs button { padding-inline: 12px; }
  .air-offer-tabs button span { font-size: 12px; }
}
@media (max-width: 640px) {
  .air-offer-tabs { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 6px; border-radius: 18px; }
  .air-offer-tabs button { min-height: 65px; padding: 12px; border-radius: 12px; }
  .air-offer-tabs button span { font-size: 13px; }
  .air-offer-tabs button small { font-size: 11px; }
  .air-offers .promo-card { border-radius: 24px; }
  .air-promo-body { padding: 26px; }
  .air-promo-body .product-name { font-size: 27px; }
}

/* v6 — one bespoke interface icon family, original store/messenger logos intact. */
.k1-icon { display: block; flex-shrink: 0; overflow: visible; }
.trust-icon, .step-icon, .adv-icon, .help-feature-icon, .guarantee-icon, .faq-q-icon {
  display: inline-flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.trust-icon { flex-basis: 42px; width: 42px; height: 42px; border-radius: 14px; background: #edf6ff; color: #3186c8; }
.trust-icon .k1-icon { width: 27px; height: 27px; }
.trust-item:nth-child(2) .trust-icon { background: #f1edfc; color: #8470b8; }
.trust-item:nth-child(3) .trust-icon { background: #fff1e6; color: #be7846; }
.trust-item:nth-child(4) .trust-icon { background: #eaf6f1; color: #368676; }
.trust-item:nth-child(5) .trust-icon { background: #edf4fc; color: #567fb6; }
.air-trust-label { font-size: 14px; color: #6b8095; }
.air-trust-label strong { font-size: 14px; }
.trust-item:last-child .trust-icon { width: 19px; height: 19px; flex-basis: 19px; background: none; }
.trust-item:last-child .k1-icon { width: 18px; height: 18px; }
.trust-item:last-child .air-trust-label { font-size: 12px; }
.step-icon, .adv-icon, .help-feature-icon, .guarantee-icon {
  width: 54px; height: 54px; border-radius: 17px;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.75);
}
.step-icon .k1-icon, .adv-icon .k1-icon, .help-feature-icon .k1-icon, .guarantee-icon .k1-icon { width: 29px; height: 29px; }
.adv-card:nth-child(3n + 1) .adv-icon { background: #edf6ff; color: #3186c8; }
.help-feature-icon { background: #edf6ff !important; color: #3186c8 !important; }
.help-feature-card:nth-child(2) .help-feature-icon { background: #f1edfc !important; color: #8470b8 !important; }
.help-feature-card:nth-child(3) .help-feature-icon { background: #fff1e6 !important; color: #be7846 !important; }
.help-feature-card:nth-child(4) .help-feature-icon { background: #eaf6f1 !important; color: #368676 !important; }
.guarantee-card .guarantee-icon { background: #eaf6f1 !important; color: #368676; }
.guarantee-card:nth-child(2) .guarantee-icon { background: #edf6ff !important; color: #3186c8; }
.guarantee-card:nth-child(3) .guarantee-icon { background: #f1edfc !important; color: #8470b8; }
.guarantee-card:nth-child(4) .guarantee-icon { background: #fff1e6 !important; color: #be7846; }
.faq-q-icon { width: 36px; height: 36px; border-radius: 11px; }
.faq-q-icon .k1-icon { width: 24px; height: 24px; }
.faq-a { padding-left: 80px; }
.step-num { font-size: 12px; opacity: .8; }

/* Reference card rhythm: clear photo, dark top-seller label, review link, price. */
#productsGrid { gap: 20px; }
#productsGrid > .product-card { padding: 21px; border: 1px solid rgba(75,127,176,.16); border-radius: 25px; background: rgba(255,255,255,.94); box-shadow: 0 17px 48px rgba(44,91,134,.07); }
#productsGrid > .product-card:hover { border-color: #a7cfe9; box-shadow: 0 22px 48px rgba(44,91,134,.12); }
#productsGrid .product-visual { width: calc(100% + 42px); margin: -21px -21px 21px; aspect-ratio: 960 / 621; border-bottom: 1px solid #edf2f7; }
#productsGrid .product-visual img { width: 100%; height: 100%; object-fit: contain; }
.product-visual::before, .product-visual::after { content: none !important; display: none !important; }
#productsGrid > .product-card.featured::after { top: 14px; left: 14px; right: auto; width: auto; padding: 8px 10px; border-radius: 9px; background: rgba(16,36,62,.88); color: #fff; font-size: 12px; letter-spacing: .035em; font-weight: 650; pointer-events: none; }
#productsGrid .product-name { min-height: 50px; font-size: 21px; line-height: 1.2; letter-spacing: -.032em; font-weight: 650; margin: 0 0 6px; }
#productsGrid .product-version { min-height: 38px; margin: 0 0 4px; font-size: 14px; line-height: 1.5; color: #718297; }
#productsGrid .product-rating { margin: 0 0 10px; min-height: 40px; }
#productsGrid .product-rating-link { display: inline-flex; align-items: center; flex-wrap: wrap; column-gap: 8px; row-gap: 4px; min-height: 40px; padding: 4px 0; text-decoration: none; border-radius: 6px; }
#productsGrid .rating-stars { color: #ea9a3d; font-size: 14px; letter-spacing: .04em; }
#productsGrid .rating-avg { color: #47617a; font-size: 14px; font-weight: 650; }
#productsGrid .rating-count-link { margin-left: 3px; color: #718399; font-size: 12px; font-weight: 400; text-decoration: underline; text-decoration-color: #bacbd9; text-underline-offset: 4px; }
#productsGrid .product-rating-link:hover .rating-count-link { color: #177dc1; text-decoration-color: currentColor; }
#productsGrid .price-row { margin: 0 0 13px; gap: 10px; align-items: baseline; }
#productsGrid .product-price { font-size: 26px; letter-spacing: -.035em; font-weight: 700; }
#productsGrid .product-price-old { color: #8796a7; font-size: 14px; }
#productsGrid .product-delivery { margin: auto 0 17px; gap: 7px; font-size: 12px; font-weight: 500; color: #4c8275; }
#productsGrid .product-delivery .k1-icon { width: 18px; height: 18px; flex-basis: 18px; }
#productsGrid .product-actions { grid-template-columns: minmax(0,1fr) 48px; gap: 8px; }
#productsGrid .product-actions > button { border-radius: 14px; min-height: 46px; }
#productsGrid .details-link { margin-top: 13px; min-height: 32px; display: inline-flex; align-items: center; font-size: 12px; color: #718297; }
.promo-delivery-badge { display: none !important; }
.air-offers .promo-discount-badge { top: 16px; left: 16px; right: auto; padding: 8px 12px; min-height: 31px; border: 1px solid rgba(255,255,255,.8); border-radius: 10px; background: rgba(255,255,255,.94); color: #ad5d35; font-size: 12px; font-weight: 650; box-shadow: 0 4px 16px rgba(47,78,105,.07); }
.air-offer-tabs button:focus-visible, #productsGrid a:focus-visible { outline: 3px solid #2789cb; outline-offset: 4px; }
@media (max-width: 1100px) and (min-width: 851px) {
  .trust-item { gap: 8px; padding-inline: 8px; }
  .trust-icon { width: 34px; height: 34px; flex-basis: 34px; border-radius: 11px; }
  .air-trust-label, .air-trust-label strong { font-size: 12px; }
}
@media (max-width: 640px) {
  .trust-item { gap: 10px; }
  .trust-icon { width: 36px; height: 36px; flex-basis: 36px; border-radius: 12px; }
  .trust-icon .k1-icon { width: 25px; height: 25px; }
  .air-trust-label, .air-trust-label strong { font-size: 12px; }
  .trust-item:last-child .air-trust-label { font-size: 12px; }
  #productsGrid .product-name { min-height: 0; }
  #productsGrid .product-version { min-height: 0; }
  .air-promo-body { padding: 23px; }
  .air-promo-body .product-name { font-size: 24px; }
  .air-offers .promo-discount-badge { top: 12px; left: 12px; }
  .faq-q-icon { width: 32px; height: 32px; }
  .faq-a { padding-left: 22px; }
}
@media (prefers-reduced-motion: reduce) {
  #productsGrid > .product-card { transition: none; }
  #productsGrid > .product-card:hover { transform: none; }
}

/* v7 — tighter section rhythm, natural image geometry and finished utility UI. */
.section { padding-top: 62px; padding-bottom: 62px; }
.section-sub { margin-bottom: 28px; }
.help-section { padding-top: 44px; padding-bottom: 44px; }
.trust-bar { overflow: hidden; }
.trust-bar-inner { width: 100%; max-width: none; margin: 0; }
.trust-item:last-child { border-radius: 0 0 23px 23px; }
#productsGrid .product-visual { aspect-ratio: auto; flex-shrink: 0; height: auto; line-height: 0; }
#productsGrid .product-visual img { height: auto; display: block; }
#productsGrid .details-link { width: 100%; justify-content: space-between; gap: 12px; min-height: 42px; padding-top: 7px; margin-top: 11px; border-top: 1px solid #edf2f7; color: #53738c; font-size: 13px; text-decoration: none; }
#productsGrid .details-link::after { content: '→'; font-size: 18px; color: #438ebf; transition: transform .18s ease; }
#productsGrid .details-link:hover { color: #1278bd; }
#productsGrid .details-link:hover::after { transform: translateX(3px); }
.hero-badge { font-size: 12px; line-height: 1.6; font-weight: 650; letter-spacing: .025em; }
.cta-section { padding-top: 34px; padding-bottom: 50px; }
.cta-inner { display: block; padding: 36px 42px; }
.cta-inner h2 { font-size: clamp(30px,3vw,40px); margin-bottom: 12px; }
.cta-inner p { max-width: 760px; margin: 0; font-size: 16px; line-height: 1.6; }
.cta-buttons { display: flex; flex-direction: row; justify-content: flex-start; align-items: center; gap: 12px; margin-top: 23px; }
.cta-buttons a { width: auto; min-height: 46px; padding: 12px 22px; }
.air-menu-backdrop { z-index: 1099; background: rgba(31,56,79,.22); }
.nav-mobile-panel { z-index: 1100; top: 12px; bottom: auto; height: auto; max-height: calc(100dvh - 24px); padding: 24px; border-radius: 24px; }
.nav-mobile-panel.open { display: block; }
.air-menu-head { margin-bottom: 18px; }
.air-menu-eyebrow { font-size: 11px; }
.air-menu-head h2 { font-size: 25px; }
.air-menu-links { gap: 0 16px; }
.nav-mobile-link { min-height: 51px; padding: 12px 5px; border: none; border-bottom: 1px solid #e5edf5; border-radius: 0; background: transparent; font-size: 14px; }
.nav-mobile-link:nth-child(2), .nav-mobile-link:nth-child(3) { color: #1479b9; background: transparent; border-color: #e5edf5; font-weight: 650; }
.nav-mobile-cta { margin-top: 20px; min-height: 46px; border: 0; border-radius: 13px; background: linear-gradient(120deg,#0876ce,#1998e9); color: #fff; }
.nav-mobile-cta:hover { background: #117dc5; color: #fff; }
.air-menu-toggle .k1-icon { width: 23px; height: 23px; }
.air-menu-toggle { background: rgba(248,252,255,.88); box-shadow: none; }
body.air-menu-open .support-float, body.air-menu-open #scrollTopBtn { visibility: hidden; }
.support-float { right: 22px; bottom: 83px; }
.support-btn, #scrollTopBtn { width: 48px; height: 48px; border-radius: 16px; border: 1px solid #c5dfef; background: rgba(248,252,255,.94); color: #247eB8; box-shadow: 0 6px 24px rgba(42,92,132,.12),inset 0 1px 0 #fff; backdrop-filter: blur(14px); }
.support-btn { background: linear-gradient(145deg,#edf8ff,#e3f2fd); }
.support-btn .k1-icon, #scrollTopBtn .k1-icon { width: 27px; height: 27px; }
#scrollTopBtn { right: 22px; bottom: 25px; }
.support-btn:hover, #scrollTopBtn:hover { color: #116ba7; background: #e4f3ff; border-color: #9ccce9; }
.support-btn:hover { transform: translateY(-2px); }
.support-popup { border: 1px solid #d4e6f3; border-radius: 23px; padding: 22px; background: rgba(250,253,255,.98); box-shadow: 0 16px 50px rgba(38,81,119,.15); }
.support-popup-close { width: 32px; height: 32px; border-radius: 10px; }
.support-popup-link { border-radius: 13px; }
@media (max-width: 640px) {
  .section { padding-top: 42px; padding-bottom: 42px; }
  .section-sub { margin-bottom: 24px; }
  .help-section { padding-top: 32px; padding-bottom: 32px; }
  .trust-item:last-child { padding: 12px; border-radius: 0 0 19px 19px; }
  .hero-badge { font-size: 11px; padding: 9px 11px; }
  .air-header-actions { gap: 7px; }
  .air-menu-toggle { padding: 0 10px; gap: 6px; font-size: 13px; border-radius: 13px; }
  .air-menu-toggle .k1-icon { width: 22px; height: 22px; }
  .nav-mobile-panel { top: 12px; padding: 21px; }
  .cta-section { padding: 24px 20px 38px; }
  .cta-inner { padding: 29px 24px; }
  .cta-inner h2 { font-size: 30px; }
  .cta-inner p { font-size: 15px; }
  .cta-buttons { gap: 10px; margin-top: 20px; }
  .cta-buttons a { width: 100%; }
  .support-float { right: 14px; bottom: calc(76px + env(safe-area-inset-bottom,0px)); }
  #scrollTopBtn { right: 14px; bottom: calc(22px + env(safe-area-inset-bottom,0px)); }
  .support-btn, #scrollTopBtn { width: 44px; height: 44px; border-radius: 14px; }
  .support-popup { width: min(310px,calc(100vw - 28px)); padding: 19px; }
}

/* v8 glyph fix; v9 flat, high-contrast purchase buttons. */
#hero-price-from {
  line-height: 1.2;
  letter-spacing: -.045em;
  padding: .03em .15em .08em .025em;
  margin-left: -.025em;
  margin-bottom: -.08em;
  white-space: nowrap;
  overflow: visible;
}
.cta-inner::before { content: none; display: none; }
.hero-actions > .btn-primary,
.air-header-actions > .nav-cta,
.nav-mobile-link.nav-mobile-cta,
.product-actions > .product-buy-now,
.hero-card .product-buy-now,
.product-card .product-buy:not(.product-cart-icon) {
  color: #fff;
  background: #0875c8;
  border: 1px solid transparent;
  border-radius: 12px;
  box-shadow: none;
  font-weight: 600;
  letter-spacing: 0;
  transition: background-color .18s ease;
}
.hero-actions > .btn-primary:hover,
.air-header-actions > .nav-cta:hover,
.nav-mobile-link.nav-mobile-cta:hover,
.product-actions > .product-buy-now:hover,
.hero-card .product-buy-now:hover,
.product-card .product-buy:not(.product-cart-icon):hover {
  color: #fff;
  background: #0866b2;
  border-color: transparent;
  box-shadow: none;
  transform: none;
}
.hero-actions > .btn-primary:active,
.air-header-actions > .nav-cta:active,
.nav-mobile-link.nav-mobile-cta:active,
.product-actions > .product-buy-now:active { background: #075994; transform: none; box-shadow: none; }
.cta-buttons .btn-primary {
  color: #155d95;
  background: #fff;
  border: 1px solid transparent;
  border-radius: 12px;
  box-shadow: none;
  font-weight: 600;
}
.cta-buttons .btn-primary:hover { color: #104f82; background: #edf6ff; }
.product-actions > .product-buy-now:disabled { opacity: .55; cursor: not-allowed; transform: none; box-shadow: none; }
@media (prefers-reduced-motion: reduce) {
  .hero-actions > .btn-primary, .air-header-actions > .nav-cta, .nav-mobile-link.nav-mobile-cta, .product-actions > .product-buy-now { transition: none; transform: none; }
}

/* Resolve the legacy !important mobile CTA rules explicitly. */
#navMobile .nav-mobile-cta { color: #fff !important; background: #0875c8; min-height: 48px; }
#navMobile .nav-mobile-cta:hover { color: #fff !important; background: #0866b2 !important; }
#navMobile .nav-mobile-cta:active { background: #075994 !important; }
#navMobile { background: #fff; border: 1px solid #e2ebf3; border-radius: 22px; box-shadow: 0 18px 56px rgba(27,61,94,.18); }
#navMobile .air-menu-head { margin-bottom: 16px; padding-bottom: 14px; border-bottom: 1px solid #e7eef5; }
#navMobile .air-menu-head h2 { margin: 0; font-size: 24px; font-weight: 650; }
#navMobile .air-menu-close { background: #f5f8fc; border-color: transparent; border-radius: 12px; }
#productsGrid .product-actions > .product-buy-now { border-radius: 12px; }
.hero-actions > .btn-ghost { background: transparent; box-shadow: none; border-radius: 12px; }

/* v10 — optical balance of desktop navigation; mobile touch targets unchanged. */
@media (min-width: 1280px) {
  .nav-links { align-items: center; gap: clamp(12px,1.05vw,16px); }
  .nav-links a {
    display: inline-flex; align-items: center; justify-content: center;
    min-height: 40px; padding: 0; font-size: 13px; line-height: 20px;
    font-weight: 500; color: #536980;
  }
  .nav-links a:first-child { color: #1479b9; }
  .nav-links a:not(.nav-cta)::after { bottom: 4px; height: 1px; }
  .air-header-actions { gap: 8px; }
  .air-header-actions > .nav-cta {
    height: 40px; min-height: 40px; padding: 0 14px;
    font-size: 13px; line-height: 20px; font-weight: 600; border-radius: 11px;
  }
  .air-header-actions .cart-btn {
    width: 40px; height: 40px; min-width: 40px; border-radius: 11px;
    background: transparent; border-color: #dce8f1; box-shadow: none;
  }
  .air-header-actions .cart-btn svg { width: 20px; height: 20px; }
}