:root {
  --ink: #14213d; --blue: #176de0; --muted: #53647e; --line: #dbe5f1;
  --mist: #f4f8fd; --radius: 18px;
}
* { box-sizing: border-box; margin: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 28px; }
body { font-family: "PingFang SC", "Microsoft YaHei", system-ui, sans-serif; color: var(--ink); line-height: 1.7; background: #fff; font-size: 16px; }
a { color: inherit; text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 4px; }
a:focus-visible { outline: 3px solid #176de0; outline-offset: 5px; border-radius: 3px; }
.container { width: min(1200px, calc(100% - 64px)); margin: auto; }
.skip-link { position: absolute; left: 16px; top: -100px; z-index: 20; padding: 10px; background: #fff; }
.skip-link:focus { top: 8px; }
.nav { background: #fff; border-bottom: 1px solid var(--line); }
.nav-inner { min-height: 86px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: flex; align-items: center; gap: 11px; font-size: 21px; font-weight: 750; line-height: 1.25; }
.brand small { display: block; font-size: 12px; letter-spacing: .12em; font-weight: 500; margin-top: 4px; color: var(--muted); }
.brand-mark { display: grid; place-items: center; width: 42px; height: 42px; border-radius: 13px; color: #fff; background: var(--blue); font-size: 26px; }
.nav-links, .lang-switch { display: flex; gap: 30px; align-items: center; font-size: 14px; font-weight: 600; }
.lang-switch { gap: 14px; }
[aria-current="page"] { color: var(--blue); }
.domain-strip { padding: 11px 0; background: var(--mist); border-bottom: 1px solid var(--line); font-size: 14px; }
.domain-strip .container { display: flex; gap: 20px; align-items: baseline; }
.domain-strip span { flex-shrink: 0; color: var(--muted); }
.page-url { overflow-wrap: anywhere; color: #175daf; font-size: 14px; }
.home-hero { padding: 48px 0 52px; background: linear-gradient(115deg, #f8fbff, #edf5ff); }
.hero-grid { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 48px; }
.eyebrow { font-size: 14px; font-weight: 650; color: var(--blue); margin-bottom: 15px; }
h1 { font-size: clamp(34px, 3.3vw, 48px); line-height: 1.35; letter-spacing: -.04em; }
h1 em { color: var(--blue); font-style: normal; }
.hero-sub { margin-top: 22px; color: var(--muted); max-width: 550px; }
.business-tags { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 22px; }
.business-tags span, .label { font-size: 13px; color: #175daf; background: #e8f1ff; padding: 4px 10px; border-radius: 6px; font-weight: 650; }
.hero-actions { display: flex; align-items: center; gap: 25px; flex-wrap: wrap; margin-top: 28px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 16px; padding: 13px 22px; border-radius: 10px; font-size: 15px; font-weight: 650; }
.btn-primary { color: #fff; background: var(--blue); }
.btn-primary:hover { background: #125bbb; text-decoration: none; }
.text-link { color: #175daf; font-size: 14px; font-weight: 650; }
.disclaimer { color: var(--muted); font-size: 14px; margin-top: 25px; }
.price-overview { background: #fff; border: 1px solid #ceddf0; border-radius: var(--radius); padding: 24px 28px 18px; box-shadow: 0 18px 42px #143d7210; }
.overview-heading { display: flex; justify-content: space-between; gap: 12px; color: var(--muted); font-size: 13px; letter-spacing: .04em; padding-bottom: 12px; }
.overview-row { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 18px 0; border-top: 1px solid var(--line); }
.overview-row > span { display: flex; gap: 12px; align-items: baseline; }
.overview-row span small { font-size: 12px; color: var(--muted); }
.overview-row strong { font-size: 15px; font-weight: 600; }
.overview-row b { font-size: 20px; white-space: nowrap; color: #175daf; text-align: right; }
.overview-row b small { display: block; font-size: 12px; color: var(--muted); font-weight: 500; }
.overview-note { color: var(--muted); font-size: 12px; padding-top: 8px; }
.section { padding: 60px 0; }
h2 { font-size: 30px; line-height: 1.4; letter-spacing: -.025em; }
.audience-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 28px; }
.info-card { padding: 30px; border: 1px solid var(--line); border-radius: var(--radius); }
.info-card h3 { font-size: 22px; margin: 16px 0 12px; }
.info-card p { color: var(--muted); margin-bottom: 18px; }
.contact-section { background: var(--mist); padding: 48px 0; border-top: 1px solid var(--line); }
.contact-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 60px; align-items: center; }
.contact-grid p:not(.eyebrow) { color: var(--muted); margin-top: 16px; }
.contact-email { color: #175daf; font-size: 14px; overflow-wrap: anywhere; }
.contact-email strong { display: block; font-size: 18px; margin-top: 8px; }
.footer { padding: 30px 0; background: #11233f; color: #c5d3e8; font-size: 14px; }
.footer-top { display: flex; justify-content: space-between; gap: 20px; align-items: center; margin-bottom: 22px; }
.footer-top strong { color: #fff; font-size: 16px; }
.footer a { overflow-wrap: anywhere; }
.footer-top p { margin-top: 4px; font-size: 13px; }
.footer-legal { padding-top: 18px; margin-top: 18px; border-top: 1px solid #ffffff26; font-size: 12px; }
.mps-link { display: inline-flex; align-items: center; gap: 4px; }
.catalog-heading { padding: 28px 0 24px; }
.catalog-heading h1 { font-size: 36px; }
.catalog-heading .eyebrow { margin-bottom: 6px; }
.catalog-heading p:not(.eyebrow) { color: var(--muted); margin-top: 10px; }
.catalog-nav { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.catalog-nav a { font-size: 14px; border: 1px solid var(--line); padding: 5px 14px; border-radius: 30px; }
.catalog-nav a:hover { background: var(--mist); }
.catalog-section { padding-bottom: 40px; }
.catalog-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.catalog-card { border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; display: flex; flex-direction: column; scroll-margin-top: 20px; }
.card-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.item-number { font-size: 13px; color: var(--muted); }
.catalog-card h2 { font-size: 20px; margin-top: 15px; min-height: 56px; }
.price { font-size: clamp(24px, 2.2vw, 30px); font-weight: 750; color: #175daf; margin: 8px 0 13px; line-height: 1.4; letter-spacing: -.025em; }
.price small { font-size: 14px; font-weight: 500; color: var(--muted); margin-left: 5px; letter-spacing: 0; }
.description { font-size: 16px; }
.delivery { font-size: 14px; color: var(--muted); margin-top: 16px; padding-top: 13px; border-top: 1px solid var(--line); }
.card-bottom { margin-top: auto; padding-top: 18px; display: flex; flex-direction: column; gap: 13px; }
.card-bottom .page-url { font-size: 12px; }
.service-note { background: var(--mist); }
.service-note .label { align-self: flex-start; }
.service-note p { margin-top: 16px; font-size: 14px; color: #425471; }
.service-note .text-link { margin-top: auto; padding-top: 20px; }
.checkout-bar { display: flex; gap: 24px; align-items: center; justify-content: space-between; padding: 18px 22px; margin-bottom: 20px; background: var(--mist); border: 1px solid var(--line); border-radius: 12px; }
.checkout-bar p { font-size: 14px; color: var(--muted); }
.checkout-bar .btn { flex-shrink: 0; }
@media (max-width: 1000px) {
  .hero-grid { gap: 28px; }
  .price-overview { padding: 20px; }
  .overview-row { flex-wrap: wrap; gap: 5px; padding: 12px 0; }
  .overview-row b { margin-left: 27px; font-size: 19px; }
  .overview-row b small { display: inline; margin-left: 8px; }
  .catalog-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 700px) {
  .container { width: calc(100% - 32px); }
  .nav-inner { flex-wrap: wrap; gap: 16px; padding: 16px 0; min-height: auto; }
  .brand { font-size: 18px; }
  .brand-mark { width: 36px; height: 36px; }
  .nav-links { order: 3; width: 100%; justify-content: space-between; gap: 12px; border-top: 1px solid var(--line); padding-top: 12px; }
  .domain-strip .container { flex-direction: column; gap: 1px; }
  .home-hero { padding: 32px 0; }
  .hero-grid, .audience-grid, .contact-grid, .catalog-grid { grid-template-columns: 1fr; }
  .hero-sub { margin-top: 16px; }
  .overview-row { flex-wrap: nowrap; padding: 15px 0; gap: 12px; }
  .overview-row b { margin-left: 0; font-size: 19px; }
  .overview-row b small { display: block; }
  .overview-row strong { font-size: 14px; }
  .overview-row > span { gap: 8px; }
  .section { padding: 40px 0; }
  .info-card { padding: 24px; }
  .contact-grid { gap: 24px; }
  .contact-section { padding: 32px 0; }
  .footer-top { flex-direction: column; align-items: flex-start; }
  .catalog-heading { padding-top: 24px; }
  .catalog-heading h1 { font-size: 30px; }
  .catalog-card h2 { min-height: 0; }
  .catalog-card .price { font-size: 30px; }
  .checkout-bar { align-items: stretch; flex-direction: column; gap: 12px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }