:root {
  --ink: #081321;
  --ink-2: #122235;
  --muted: #64758b;
  --line: #dbe4ee;
  --line-dark: rgba(255, 255, 255, 0.14);
  --blue: #0877ff;
  --blue-2: #00a3ff;
  --green: #17c878;
  --amber: #ff9f1a;
  --purple: #7c5cff;
  --surface: #ffffff;
  --soft: #f5f8fc;
  --dark: #03101e;
  --max: 1360px;
  --pad: clamp(20px, 4vw, 32px);
  --shadow: 0 18px 50px rgba(8, 19, 33, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Heiti SC", Arial, sans-serif;
  color: var(--ink);
  background: var(--surface);
  letter-spacing: 0;
  overflow-x: hidden;
}

body.no-scroll {
  overflow: hidden;
}

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

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

img,
canvas {
  max-width: 100%;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  padding: 0 clamp(20px, 4vw, 52px);
  color: #fff;
  background: rgba(3, 16, 30, 0.58);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(18px);
  transition: background 0.2s ease, height 0.2s ease;
}

.site-header.scrolled {
  height: 66px;
  background: rgba(3, 16, 30, 0.94);
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 14px;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: rgba(255, 255, 255, 0.88);
  padding: 12px 0;
}

.nav-link:hover {
  color: #fff;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.primary-btn,
.secondary-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 0 24px;
  border-radius: 8px;
  font-weight: 700;
  border: 1px solid transparent;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

.primary-btn {
  color: #fff;
  background: linear-gradient(135deg, #1282ff, #0067e8);
  box-shadow: 0 16px 38px rgba(0, 103, 232, 0.28);
}

.primary-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 46px rgba(0, 103, 232, 0.34);
}

.primary-btn.small {
  min-height: 38px;
  padding: 0 18px;
  border-radius: 7px;
}

.secondary-btn {
  color: #fff;
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.45);
}

.secondary-btn:hover {
  background: rgba(255, 255, 255, 0.12);
}

.mobile-toggle {
  display: none;
  width: 54px;
  height: 42px;
  align-items: center;
  justify-content: center;
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
}

.mobile-panel {
  position: fixed;
  top: 66px;
  left: 12px;
  right: 12px;
  z-index: 45;
  display: none;
  gap: 4px;
  padding: 16px;
  background: rgba(3, 16, 30, 0.98);
  color: #fff;
  border: 1px solid var(--line-dark);
  border-radius: 8px;
  max-height: calc(100svh - 82px);
  overflow: auto;
}

.mobile-panel.open {
  display: grid;
}

.mobile-panel a,
.mobile-panel button {
  width: 100%;
}

.mobile-panel a {
  padding: 12px 10px;
  border-radius: 6px;
  color: rgba(255, 255, 255, 0.86);
}

.mobile-panel a:hover {
  background: rgba(255, 255, 255, 0.08);
}

.hero {
  position: relative;
  min-height: clamp(660px, 82svh, 760px);
  color: #fff;
  overflow: hidden;
  background: var(--dark);
}

.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(2, 9, 18, 0.96) 0%, rgba(2, 9, 18, 0.78) 36%, rgba(2, 9, 18, 0.2) 72%),
    linear-gradient(180deg, rgba(2, 9, 18, 0.18) 0%, rgba(2, 9, 18, 0.62) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 610px) minmax(280px, 360px);
  align-items: center;
  justify-content: space-between;
  gap: 42px;
  min-height: clamp(660px, 82svh, 760px);
  max-width: var(--max);
  margin: 0 auto;
  padding: 112px var(--pad) 104px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  width: max-content;
  max-width: 100%;
  min-height: 34px;
  padding: 0 14px;
  color: #cfe8ff;
  background: rgba(8, 119, 255, 0.12);
  border: 1px solid rgba(77, 169, 255, 0.36);
  border-radius: 8px;
  font-size: 14px;
  font-weight: 700;
}

.hero h1 {
  margin: 26px 0 20px;
  font-size: clamp(42px, 5vw, 72px);
  line-height: 1.12;
  letter-spacing: 0;
}

.hero p {
  max-width: 580px;
  margin: 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 17px;
  line-height: 1.9;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 34px;
}

.hero-checks {
  display: grid;
  gap: 10px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
  color: rgba(255, 255, 255, 0.86);
}

.hero-checks li {
  display: flex;
  align-items: center;
  gap: 10px;
}

.hero-checks li::before {
  content: "✓";
  display: inline-grid;
  place-items: center;
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
  color: var(--green);
  font-weight: 900;
}

.security-panel {
  align-self: center;
  padding: 22px;
  background: rgba(4, 17, 31, 0.72);
  border: 1px solid rgba(92, 180, 255, 0.3);
  border-radius: 8px;
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.36);
  backdrop-filter: blur(18px);
}

.panel-head,
.panel-metric {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
}

.panel-head {
  color: #d9edff;
  font-weight: 700;
  margin-bottom: 16px;
}

.live-dot {
  color: #04111f;
  background: var(--green);
  padding: 4px 8px;
  border-radius: 999px;
  font-size: 11px;
}

.panel-metric {
  padding: 14px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.panel-metric span {
  color: rgba(255, 255, 255, 0.64);
  font-size: 13px;
}

.panel-metric strong {
  font-size: 24px;
}

.mini-chart {
  width: 100%;
  height: 82px;
  margin-top: 12px;
}

.metric-band {
  display: grid;
  grid-template-columns: 1.3fr repeat(4, 1fr);
  gap: 0;
  max-width: var(--max);
  margin: -70px auto 0;
  position: relative;
  z-index: 4;
  color: #fff;
  background: rgba(4, 17, 31, 0.96);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.metric-title,
.metric-item {
  min-height: 140px;
  display: grid;
  align-content: center;
  gap: 8px;
  padding: 24px;
  border-right: 1px solid rgba(255, 255, 255, 0.11);
}

.metric-item:last-child {
  border-right: 0;
}

.metric-title span,
.metric-item strong {
  font-size: 26px;
  font-weight: 800;
}

.metric-title small,
.metric-item span,
.metric-item small {
  color: rgba(255, 255, 255, 0.64);
}

.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: 84px var(--pad);
}

.section h2 {
  margin: 0 0 14px;
  font-size: clamp(28px, 3.2vw, 42px);
  line-height: 1.24;
  letter-spacing: 0;
}

.section p {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--blue);
  font-weight: 700;
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 34px;
}

.section-head p {
  max-width: 640px;
}

.pricing-toggle {
  display: inline-grid;
  grid-auto-flow: column;
  gap: 4px;
  padding: 4px;
  background: #edf3fa;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.pricing-toggle button {
  min-width: 104px;
  height: 40px;
  color: var(--muted);
  background: transparent;
  border: 0;
  border-radius: 6px;
  font-weight: 700;
}

.pricing-toggle button.active {
  color: #fff;
  background: var(--blue);
  box-shadow: 0 10px 24px rgba(8, 119, 255, 0.25);
}

.security-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.security-card {
  display: grid;
  align-content: start;
  gap: 12px;
  min-height: 156px;
  padding: 22px;
  text-align: left;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  transition: border-color 0.18s ease, transform 0.18s ease, box-shadow 0.18s ease;
}

.security-card:hover {
  border-color: rgba(8, 119, 255, 0.45);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.security-card.active {
  color: #fff;
  background: linear-gradient(145deg, #0b7dff, #0757c8);
  border-color: rgba(255, 255, 255, 0.72);
  transform: translateY(-3px) scale(1.018);
  box-shadow: 0 22px 52px rgba(8, 119, 255, 0.32);
}

.security-card span {
  color: var(--muted);
  line-height: 1.6;
}

.security-card.active span {
  color: rgba(255, 255, 255, 0.84);
}

.security-detail {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-top: 24px;
  padding: 28px;
  color: #fff;
  background: linear-gradient(135deg, #071827, #09233b);
  border-radius: 8px;
}

.security-detail span {
  color: #9bd0ff;
  font-weight: 700;
}

.security-detail h3 {
  margin: 8px 0;
  font-size: 28px;
}

.security-detail p {
  color: rgba(255, 255, 255, 0.72);
}

.security-detail ul {
  display: grid;
  gap: 10px;
  min-width: 250px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.security-detail li {
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
}

.customers {
  display: grid;
  gap: 30px;
}

.logo-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  align-items: center;
  gap: 12px;
}

.customer-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 68px;
  padding: 10px 12px;
  color: var(--ink-2);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-weight: 800;
  line-height: 1;
  white-space: nowrap;
}

.customer-logo img {
  display: block;
  width: 32px;
  height: 32px;
  object-fit: contain;
  flex: 0 0 auto;
}

.customer-logo .logo-wide {
  width: 46px;
  height: 32px;
  clip-path: inset(0 0 24% 0);
  object-position: center top;
}

.customer-logo .logo-word {
  width: 52px;
  max-height: 28px;
}

.customer-logo b {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.pricing-section {
  background: linear-gradient(180deg, #fff 0%, #f6f9fd 100%);
  max-width: none;
  padding-left: max(32px, calc((100vw - var(--max)) / 2 + 32px));
  padding-right: max(32px, calc((100vw - var(--max)) / 2 + 32px));
}

.plans {
  display: grid;
  grid-template-columns: repeat(5, minmax(210px, 1fr));
  gap: 18px;
  align-items: stretch;
}

.plan-card {
  position: relative;
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 16px;
  min-height: 382px;
  padding: 22px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  cursor: pointer;
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

.plan-card:hover {
  transform: translateY(-3px);
  border-color: rgba(8, 119, 255, 0.55);
  box-shadow: var(--shadow);
}

.plan-card.selected {
  z-index: 2;
  transform: translateY(-7px) scale(1.035);
  color: #fff;
  background: linear-gradient(145deg, #0b7dff, #0757c8);
  border-color: rgba(255, 255, 255, 0.72);
  box-shadow: 0 26px 64px rgba(8, 119, 255, 0.36);
}

.plan-card h3 {
  margin: 0;
  font-size: 22px;
}

.plan-card p {
  min-height: 48px;
  font-size: 14px;
}

.plan-card.selected p,
.plan-card.selected li {
  color: rgba(255, 255, 255, 0.82);
}

.plan-card.selected .price strong {
  color: #fff;
}

.price {
  display: flex;
  align-items: baseline;
}

.price strong {
  font-size: clamp(28px, 2.4vw, 34px);
  line-height: 1.1;
  white-space: nowrap;
}

.plan-card ul {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.plan-card li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  color: var(--ink-2);
  line-height: 1.45;
  font-size: 14px;
}

.check-mark {
  color: var(--green);
  font-weight: 900;
}

.plan-card.selected .check-mark {
  color: #73ffc4;
}

.plan-card .secondary-plan-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 42px;
  color: var(--ink-2);
  background: #fff;
  border: 1px solid #aebed1;
  border-radius: 8px;
  font-weight: 700;
  text-decoration: none;
}

.plan-card.selected .secondary-plan-btn {
  color: #0757c8;
  background: #fff;
  border-color: #fff;
}

.pricing-note {
  margin: 18px 0 14px;
  font-size: 13px;
  color: var(--muted);
}

.centered {
  justify-content: center;
  width: 100%;
}

.faq-contact {
  display: grid;
  grid-template-columns: minmax(300px, 1fr) minmax(360px, 1.2fr);
  gap: 56px;
}

.faq-list {
  display: grid;
  gap: 0;
  margin-top: 22px;
  border-top: 1px solid var(--line);
}

.faq-item {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px 16px;
  width: 100%;
  padding: 20px 0;
  text-align: left;
  background: #fff;
  border: 0;
  border-bottom: 1px solid var(--line);
}

.faq-item > span {
  font-weight: 700;
}

.faq-plus {
  color: var(--blue);
  transition: transform 0.18s ease;
  font-size: 22px;
  line-height: 1;
}

.faq-item p {
  grid-column: 1 / -1;
  display: none;
  margin: 0;
  color: var(--muted);
}

.faq-item[aria-expanded="true"] p {
  display: block;
}

.faq-item[aria-expanded="true"] .faq-plus {
  transform: rotate(45deg);
}

.contact-info {
  display: grid;
  gap: 12px;
  margin: 24px 0;
  color: var(--ink-2);
}

.contact-info span {
  display: flex;
  align-items: center;
  gap: 10px;
}

.contact-form {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.contact-form label {
  display: grid;
  gap: 8px;
  color: var(--ink-2);
  font-weight: 700;
  font-size: 14px;
}

.contact-form input,
.contact-form select,
.contact-form textarea,
.newsletter input {
  width: 100%;
  min-height: 44px;
  padding: 0 12px;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  outline: none;
}

.contact-form textarea {
  padding: 12px;
  resize: vertical;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus,
.newsletter input:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 4px rgba(8, 119, 255, 0.12);
}

.contact-form .full {
  grid-column: 1 / -1;
}

.privacy {
  grid-column: 1 / -1;
  justify-self: center;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
}

.site-footer {
  color: rgba(255, 255, 255, 0.78);
  background: linear-gradient(135deg, #03101e, #082239);
  padding: 54px max(32px, calc((100vw - var(--max)) / 2 + 32px)) 26px;
}

.site-footer {
  display: grid;
  gap: 38px;
}

.footer-brand p {
  max-width: 320px;
  line-height: 1.8;
}

.footer-columns {
  display: grid;
  grid-template-columns: repeat(3, minmax(110px, 1fr)) minmax(260px, 1.35fr);
  gap: 32px;
}

.footer-columns div,
.newsletter {
  display: grid;
  gap: 12px;
  align-content: start;
}

.footer-columns strong,
.newsletter strong {
  color: #fff;
}

.footer-columns a:hover {
  color: #fff;
}

.newsletter div {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
}

.newsletter input {
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.18);
}

.newsletter button {
  min-width: 74px;
  color: #fff;
  background: var(--blue);
  border: 0;
  border-radius: 8px;
  font-weight: 700;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding-top: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 13px;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 26px;
  z-index: 80;
  transform: translate(-50%, 20px);
  min-width: min(420px, calc(100vw - 32px));
  padding: 14px 18px;
  color: #fff;
  background: rgba(3, 16, 30, 0.96);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.toast.show {
  opacity: 1;
  transform: translate(-50%, 0);
}

.telegram-card {
  position: fixed;
  right: clamp(16px, 2.4vw, 28px);
  bottom: clamp(16px, 2.4vw, 28px);
  z-index: 90;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  width: clamp(340px, 31vw, 430px);
  max-width: calc(100vw - 32px);
  max-height: calc(100dvh - 32px);
  overflow-y: auto;
  padding: 18px;
  color: #fff;
  background: linear-gradient(145deg, #0d8cff, #0562d7);
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 8px;
  box-shadow: 0 24px 60px rgba(2, 20, 45, 0.28);
  opacity: 0;
  pointer-events: none;
  transform: translateY(18px) scale(0.98);
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.telegram-card.show,
.telegram-card:target {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0) scale(1);
}

.telegram-card.dismissed {
  opacity: 0;
  pointer-events: none;
  transform: translateY(18px) scale(0.98);
}

.telegram-icon {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  color: #0b6ed8;
  background: #fff;
  border-radius: 50%;
  font-weight: 900;
  font-size: 24px;
}

.contact-card-head {
  padding-right: 36px;
}

.telegram-card strong,
.telegram-link b {
  display: block;
  font-size: 20px;
  line-height: 1.2;
}

.telegram-card p {
  max-width: 300px;
  margin: 0;
  color: rgba(255, 255, 255, 0.86);
  line-height: 1.6;
}

.telegram-link {
  display: grid;
  align-content: center;
  gap: 8px;
  min-height: 132px;
  padding: 16px;
  color: #0757c8;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(255, 255, 255, 0.48);
  border-radius: 8px;
  font-weight: 800;
  text-decoration: none;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.76);
}

.telegram-link span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  min-height: 30px;
  padding: 0 10px;
  color: #fff;
  background: #0b7dff;
  border-radius: 8px;
  font-size: 13px;
}

.telegram-link b {
  color: #0757c8;
}

.contact-options {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 148px;
  gap: 10px;
  align-items: stretch;
}

.wechat-contact {
  display: grid;
  justify-items: center;
  gap: 8px;
  min-width: 0;
  padding: 10px;
  color: var(--ink-2);
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(255, 255, 255, 0.48);
  border-radius: 8px;
  font-size: 13px;
  font-weight: 800;
  text-align: center;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.76);
}

.wechat-qr {
  display: block;
  width: 112px;
  height: auto;
  border-radius: 6px;
}

.telegram-close {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 38px;
  height: 38px;
  color: rgba(255, 255, 255, 0.86);
  background: rgba(255, 255, 255, 0.18);
  border: 0;
  border-radius: 50%;
  font-size: 26px;
  line-height: 1;
  cursor: pointer;
}

.telegram-close:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.28);
}

@media (max-width: 1240px) {
  .hero-content {
    grid-template-columns: minmax(0, 1fr) minmax(280px, 340px);
    gap: 32px;
  }

  .plans {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 1100px) {
  .site-header {
    justify-content: flex-end;
  }

  .desktop-nav,
  .header-actions .primary-btn.small {
    display: none;
  }

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

  .hero-content,
  .faq-contact {
    grid-template-columns: 1fr;
  }

  .hero-content {
    align-content: center;
    justify-content: start;
  }

  .security-panel {
    width: min(100%, 460px);
    max-width: 460px;
  }

  .metric-band {
    grid-template-columns: repeat(2, 1fr);
    margin-left: 16px;
    margin-right: 16px;
  }

  .metric-title {
    grid-column: 1 / -1;
    min-height: 104px;
  }

  .metric-title,
  .metric-item {
    border-right: 1px solid rgba(255, 255, 255, 0.11);
    border-bottom: 1px solid rgba(255, 255, 255, 0.11);
  }

  .security-grid,
  .plans {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

@media (max-width: 760px) {
  .site-header {
    height: 64px;
    padding: 0 16px;
  }

  .hero {
    min-height: 620px;
  }

  .hero-content {
    min-height: 620px;
    padding: 92px 20px 58px;
  }

  .hero h1 {
    font-size: clamp(34px, 10vw, 40px);
    line-height: 1.16;
  }

  .hero p {
    font-size: 15px;
    line-height: 1.75;
  }

  .hero-actions {
    flex-direction: column;
    gap: 12px;
  }

  .secondary-btn,
  .primary-btn {
    width: 100%;
  }

  .hero-checks {
    gap: 8px;
    font-size: 14px;
  }

  .security-panel {
    display: none;
  }

  .metric-band {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin: -36px 14px 0;
  }

  .metric-title {
    grid-column: 1 / -1;
  }

  .metric-title,
  .metric-item {
    min-height: 104px;
    padding: 18px;
  }

  .metric-title span,
  .metric-item strong {
    font-size: 24px;
  }

  .security-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .plans,
  .contact-form,
  .footer-columns {
    grid-template-columns: 1fr;
  }

  .logo-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }

  .security-card {
    min-height: 148px;
    padding: 18px;
  }

  .security-detail {
    display: grid;
    gap: 20px;
    padding: 22px;
  }

  .security-detail h3 {
    font-size: 24px;
  }

  .security-detail ul {
    min-width: 0;
  }

  .customer-logo {
    gap: 8px;
    min-height: 58px;
    padding: 8px 10px;
    font-size: 15px;
  }

  .customer-logo img {
    width: 28px;
    height: 28px;
  }

  .customer-logo .logo-wide {
    width: 42px;
    height: 28px;
  }

  .customer-logo .logo-word {
    width: 46px;
    max-height: 24px;
  }

  .section,
  .pricing-section {
    padding: 58px 20px;
  }

  .section h2 {
    font-size: 30px;
  }

  .section-head {
    gap: 18px;
    margin-bottom: 24px;
  }

  .section-head {
    display: grid;
    align-items: start;
  }

  .pricing-toggle {
    width: 100%;
    grid-auto-flow: column;
  }

  .pricing-toggle button {
    min-width: 0;
  }

  .plan-card {
    gap: 14px;
    min-height: auto;
    padding: 20px;
  }

  .plan-card.selected {
    transform: translateY(-3px) scale(1.012);
  }

  .plan-card p {
    min-height: 0;
  }

  .price strong {
    font-size: 32px;
  }

  .faq-contact {
    gap: 42px;
  }

  .contact-info {
    font-size: 14px;
  }

  .contact-form input,
  .contact-form select,
  .contact-form textarea,
  .newsletter input {
    font-size: 16px;
  }

  .footer-bottom {
    display: grid;
  }
}

@media (max-width: 640px) {
  .telegram-card {
    right: 14px;
    bottom: 14px;
    width: min(360px, calc(100vw - 28px));
    padding: 16px;
  }

  .contact-options {
    grid-template-columns: 1fr;
  }

  .telegram-link {
    min-height: 76px;
  }

  .wechat-contact {
    grid-template-columns: auto 1fr;
    justify-items: start;
    align-items: center;
    text-align: left;
  }

  .wechat-qr {
    width: 92px;
  }
}

@media (max-width: 420px) {
  .telegram-card {
    bottom: 12px;
    right: 12px;
    width: calc(100vw - 24px);
  }

  .contact-options {
    grid-template-columns: 1fr;
  }

  .mobile-toggle {
    width: 50px;
    height: 40px;
  }

  .eyebrow {
    width: 100%;
    justify-content: center;
    font-size: 13px;
  }

  .hero h1 {
    font-size: 32px;
  }

  .metric-band,
  .security-grid {
    grid-template-columns: 1fr;
  }

  .metric-title,
  .metric-item,
  .security-card {
    min-height: auto;
  }

  .newsletter div {
    grid-template-columns: 1fr;
  }

  .newsletter button {
    min-height: 42px;
  }
}