:root {
  --ink: #17212b;
  --muted: #627080;
  --line: #d9e0e6;
  --paper: #ffffff;
  --soft: #f5f7f9;
  --blue: #1464c8;
  --blue-dark: #0f4f9f;
  --orange: #f28c28;
  --green: #15915b;
  --dark: #101820;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: #fff;
  font-family: "Segoe UI", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
}

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

img {
  display: block;
  max-width: 100%;
}

.container {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
}

.topline {
  background: var(--dark);
  color: #d7dde3;
  font-size: 13px;
}

.topline-inner {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 8px 0;
}

.topline a {
  color: #fff;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
}

.brand img {
  width: 180px;
}

.menu {
  display: flex;
  align-items: center;
  gap: 24px;
  color: #425064;
  font-size: 14px;
  font-weight: 700;
}

.menu a:hover {
  color: var(--blue);
}

.menu-cta,
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 17px;
  border-radius: 5px;
  font-weight: 800;
}

.menu-cta,
.btn-primary {
  color: #fff;
  background: var(--blue);
}

.menu-cta:hover,
.btn-primary:hover {
  color: #fff;
  background: var(--blue-dark);
}

.btn-secondary {
  color: var(--blue);
  border: 1px solid #b8c9dd;
  background: #fff;
}

.btn-secondary:hover {
  border-color: var(--blue);
}

.hero {
  padding: 58px 0 54px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, #f6f9fc 0%, #ffffff 100%);
}

.hero-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 410px;
  gap: 48px;
  align-items: center;
}

.hero-copy h1 {
  max-width: 780px;
  margin: 0;
  font-size: clamp(36px, 5vw, 58px);
  line-height: 1.08;
  letter-spacing: 0;
}

.lead {
  max-width: 720px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 18px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.quick-spec {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  max-width: 680px;
  margin-top: 34px;
  border: 1px solid var(--line);
  background: #fff;
}

.quick-spec div {
  padding: 17px 18px;
  border-right: 1px solid var(--line);
}

.quick-spec div:last-child {
  border-right: 0;
}

.quick-spec strong,
.quick-spec span {
  display: block;
}

.quick-spec strong {
  font-size: 19px;
}

.quick-spec span {
  color: var(--muted);
  font-size: 13px;
}

.hero-panel {
  border: 1px solid var(--line);
  border-top: 4px solid var(--orange);
  background: #fff;
  box-shadow: 0 14px 34px rgba(23, 33, 43, 0.1);
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px;
  border-bottom: 1px solid var(--line);
}

.panel-head span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

.panel-head strong {
  color: var(--blue);
  font-size: 22px;
}

.server-box {
  display: grid;
  grid-template-columns: 16px minmax(0, 1fr);
  gap: 12px;
  margin: 18px;
  padding: 16px;
  border: 1px solid #cfd8e2;
  background: #f7fafc;
}

.server-led {
  width: 12px;
  height: 12px;
  margin-top: 6px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 4px rgba(21, 145, 91, 0.13);
}

.server-box strong,
.server-box span {
  display: block;
}

.server-box span {
  color: var(--muted);
  font-size: 14px;
}

.spec-list {
  margin: 0 18px;
  border-top: 1px solid var(--line);
}

.spec-list div {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.spec-list dt,
.spec-list dd {
  margin: 0;
}

.spec-list dt {
  color: var(--muted);
}

.spec-list dd {
  font-weight: 800;
  text-align: right;
}

.hero-panel p {
  margin: 16px 18px 20px;
  color: var(--muted);
  font-size: 14px;
}

.section {
  padding: 68px 0;
}

.section-title {
  max-width: 760px;
  margin: 0 auto 30px;
  text-align: center;
}

.section-title.left {
  margin-left: 0;
  text-align: left;
}

.section-title span,
.small-label {
  display: inline-block;
  margin-bottom: 8px;
  color: var(--orange);
  font-size: 13px;
  font-weight: 900;
  text-transform: uppercase;
}

.section-title h2,
.process h2,
.final-cta h2 {
  margin: 0;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.18;
  letter-spacing: 0;
}

.section-title p {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 17px;
}

.package-section {
  background: var(--soft);
}

.package-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.package-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 390px;
  padding: 24px;
  border: 1px solid var(--line);
  background: #fff;
}

.package-card.recommended {
  border-color: var(--blue);
  box-shadow: 0 12px 30px rgba(20, 100, 200, 0.13);
}

.tag {
  position: absolute;
  top: -13px;
  left: 18px;
  padding: 4px 9px;
  color: #fff;
  background: var(--orange);
  font-size: 12px;
  font-weight: 800;
}

.package-card h3 {
  margin: 0;
  font-size: 24px;
}

.package-use {
  min-height: 46px;
  margin: 8px 0 0;
  color: var(--muted);
}

.package-price {
  margin: 18px 0;
  color: var(--blue);
  font-size: 31px;
  font-weight: 900;
}

.package-price span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.package-card ul {
  display: grid;
  gap: 9px;
  margin: 0 0 22px;
  padding: 0;
  color: #3f4d5c;
  list-style: none;
}

.package-card li::before {
  margin-right: 8px;
  color: var(--green);
  content: "✓";
  font-weight: 900;
}

.package-card a {
  margin-top: auto;
  padding: 11px 14px;
  color: #fff;
  background: var(--blue);
  text-align: center;
  font-weight: 800;
}

.services-layout {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 46px;
  align-items: start;
}

.service-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.service-list article {
  padding: 22px;
  border: 1px solid var(--line);
  background: #fff;
}

.service-list b {
  color: var(--orange);
}

.service-list h3 {
  margin: 8px 0;
  font-size: 22px;
}

.service-list p {
  margin: 0;
  color: var(--muted);
}

.feature-band {
  color: #fff;
  background: var(--dark);
}

.feature-band .section-title p {
  color: #b9c4cf;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.feature-item {
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.05);
}

.icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 48px;
  height: 34px;
  margin-bottom: 14px;
  color: #101820;
  background: var(--orange);
  font-size: 13px;
  font-weight: 900;
}

.feature-item h3 {
  margin: 0 0 8px;
}

.feature-item p {
  margin: 0;
  color: #c2ccd6;
}

.process-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 36px;
  align-items: start;
}

.process-steps {
  display: grid;
  gap: 12px;
}

.process-steps div {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 14px;
  padding: 18px;
  border: 1px solid var(--line);
  background: #fff;
}

.process-steps strong {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  color: #fff;
  background: var(--blue);
}

.process-steps p {
  margin: 0;
  color: var(--muted);
}

.faq {
  background: var(--soft);
}

.faq-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 36px;
}

.faq-list {
  display: grid;
  gap: 10px;
}

details {
  border: 1px solid var(--line);
  background: #fff;
}

summary {
  cursor: pointer;
  padding: 16px 18px;
  font-weight: 800;
}

details p {
  margin: 0;
  padding: 0 18px 18px;
  color: var(--muted);
}

.final-cta {
  padding: 44px 0;
  color: #fff;
  background: var(--blue);
}

.final-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 26px;
}

.final-cta p {
  margin: 8px 0 0;
  color: #dbe9fb;
}

.final-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.final-cta .btn-primary {
  color: var(--blue);
  background: #fff;
}

.final-cta .btn-secondary {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.55);
  background: transparent;
}

.footer {
  padding: 34px 0 20px;
  color: #c3ccd5;
  background: var(--dark);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.8fr 1.2fr;
  gap: 28px;
}

.footer img {
  width: 170px;
  margin-bottom: 12px;
  filter: brightness(0) invert(1);
}

.footer h3 {
  margin: 0 0 8px;
  color: #fff;
  font-size: 16px;
}

.footer p {
  margin: 0;
}

.copyright {
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  font-size: 14px;
}

.wa-float {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 80;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 45px;
  padding: 0 16px 0 12px;
  border-radius: 999px;
  color: #fff;
  background: #18a85d;
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.22);
  font-weight: 900;
}

.wa-float span {
  display: inline-grid;
  place-items: center;
  width: 28px;
  height: 28px;
  color: #fff;
}

@media (max-width: 980px) {
  .hero-layout,
  .services-layout,
  .process-grid,
  .faq-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 720px) {
  .container {
    width: min(100% - 28px, 1180px);
  }

  .topline-inner,
  .header-inner,
  .final-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .header-inner {
    padding: 14px 0;
    gap: 14px;
  }

  .menu {
    width: 100%;
    overflow-x: auto;
    gap: 16px;
    padding-bottom: 4px;
  }

  .hero {
    padding-top: 40px;
  }

  .quick-spec,
  .package-grid,
  .service-list,
  .feature-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .quick-spec div {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .quick-spec div:last-child {
    border-bottom: 0;
  }

  .wa-float {
    right: 14px;
    bottom: 14px;
  }
}