:root {
  --bg: #f5f7fb;
  --surface: #ffffff;
  --surface-soft: #eef2fb;
  --surface-strong: #dfe8ff;
  --ink: #182033;
  --muted: #5d6880;
  --line: rgba(24, 32, 51, 0.12);
  --brand: #2f5cff;
  --brand-deep: #1232a6;
  --accent: #ffb84d;
  --hero: #0d1530;
  --hero-2: #12204a;
  --radius: 26px;
  --radius-sm: 18px;
  --shadow: 0 20px 48px rgba(12, 20, 40, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--ink);
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

img,
picture,
svg {
  max-width: 100%;
}

img {
  display: block;
  height: auto;
}

figure {
  margin: 0;
}

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

.wrap,
.container,
.page-wrap,
.section-inner,
.hero-inner,
.content-wrap {
  width: min(1200px, calc(100% - 40px));
  margin-left: auto;
  margin-right: auto;
}

p,
li,
table,
th,
td,
.hero-copy,
.card-copy,
.faq-answer,
.note-copy,
.section-heading,
.copy-block,
.panel,
.nav-card,
.issue-card,
.check-card,
.portal-card,
.metric-card,
.step-card,
.route-card {
  writing-mode: horizontal-tb;
  white-space: normal;
  word-break: normal;
  overflow-wrap: break-word;
  line-height: 1.78;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(16px);
  background: rgba(9, 13, 27, 0.88);
}

.header-inner {
  min-height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 8px 16px;
  border-radius: 16px;
  background: #10172a;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.site-logo {
  display: block;
  width: auto;
  height: auto;
  max-width: 188px;
  max-height: 36px;
  object-fit: contain;
}

.nav {
  display: flex;
  align-items: center;
  gap: 18px;
}

.nav a {
  color: rgba(255, 255, 255, 0.84);
  font-size: 0.95rem;
}

.menu-toggle {
  display: none;
  border: 0;
  border-radius: 999px;
  padding: 10px 16px;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  font: inherit;
}

.hero,
.cover-hero,
.full-bleed-hero {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  color: #fff;
  background: linear-gradient(135deg, var(--hero), var(--hero-2));
}

.hero > img,
.cover-hero > img,
.full-bleed-hero > img,
.hero-media img {
  width: 100%;
  height: 100%;
  min-height: 560px;
  object-fit: cover;
  object-position: center;
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-overlay,
.cover-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(90deg, rgba(8, 12, 26, 0.88), rgba(8, 12, 26, 0.62), rgba(8, 12, 26, 0.2)),
    linear-gradient(180deg, rgba(8, 12, 26, 0.16), rgba(8, 12, 26, 0.7));
}

.hero-inner,
.hero-content,
.cover-content {
  position: relative;
  z-index: 2;
  padding: clamp(84px, 10vw, 138px) 0 84px;
}

.cover-content,
.hero-layout,
.split-grid,
.dual-grid,
.feature-grid,
.two-col,
.dual-panel {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
  align-items: start;
}

.cover-content,
.hero-layout,
.split-grid,
.dual-grid,
.feature-grid,
.two-col {
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
}

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

.hero-copy {
  max-width: 780px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--accent);
  letter-spacing: 0.18em;
  font-size: 0.8rem;
  text-transform: uppercase;
}

h1,
h2,
h3,
strong {
  line-height: 1.18;
}

h1 {
  margin: 0 0 18px;
  font-size: clamp(2.45rem, 5vw, 4.6rem);
}

h2 {
  margin: 0 0 16px;
  font-size: clamp(1.56rem, 3vw, 2.35rem);
}

h3 {
  margin: 0 0 12px;
  font-size: 1.08rem;
}

.hero-copy p,
.section-heading p,
.copy-block p,
.panel p,
.note-copy p,
.portal-card p,
.nav-card p,
.issue-card p,
.check-card p,
.metric-card p,
.step-card p,
.route-card p {
  margin: 0;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.hero-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.hero-pills span {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.16);
}

.section-block,
.portal-strip,
.faq-section,
.related-section,
.cta-section {
  padding: 82px 0;
}

.section-block.alt,
.portal-strip,
.faq-section,
.related-section {
  background: var(--surface-soft);
}

.section-heading {
  max-width: 860px;
  margin-bottom: 30px;
}

.section-heading p,
.copy-block p,
.panel p,
.portal-card p,
.nav-card p,
.issue-card p,
.check-card p,
.metric-card p,
.step-card p,
.route-card p,
.faq-answer p {
  color: var(--muted);
}

.portal-grid,
.map-grid,
.device-hub,
.card-grid,
.showcase-grid,
.gallery-grid,
.nav-grid,
.check-grid,
.issue-grid,
.metric-grid,
.step-grid,
.route-grid,
.quick-grid {
  display: grid;
  gap: 18px;
}

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

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

.nav-grid,
.check-grid,
.issue-grid,
.metric-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.step-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

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

.portal-card,
.device-card,
.info-card,
.panel,
.nav-card,
.check-card,
.issue-card,
.metric-card,
.step-card,
.route-card,
.table-wrap,
.faq-item,
.cta-box,
.media-card {
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.portal-card,
.device-card,
.nav-card,
.check-card,
.issue-card,
.metric-card,
.step-card,
.route-card {
  padding: 24px;
}

.device-card {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(10px);
}

.device-card span,
.portal-card span,
.check-card span,
.metric-card span,
.step-card span,
.route-card span {
  display: inline-flex;
  margin-bottom: 10px;
  color: var(--brand);
  font-weight: 800;
  letter-spacing: 0.08em;
}

.device-card span,
.device-card strong,
.device-card p {
  color: #fff;
}

.info-card {
  display: grid;
  gap: 18px;
  overflow: hidden;
}

.info-card img,
.media-card img,
.image-panel img,
.feature-image img,
.showcase img {
  width: 100%;
  height: 100%;
  min-height: 220px;
  object-fit: cover;
  object-position: center;
}

.media-card,
.image-panel,
.feature-image,
.showcase {
  overflow: hidden;
}

.info-card div,
.card-copy {
  padding: 0 22px 22px;
}

.copy-block,
.panel {
  padding: 28px;
}

.surface {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(255, 255, 255, 0.9));
}

.object-contain img {
  object-fit: contain;
  background: rgba(255, 255, 255, 0.04);
}

.note-copy {
  padding: 18px 20px;
  border-left: 4px solid var(--brand);
  background: rgba(47, 92, 255, 0.07);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--muted);
}

.table-wrap {
  overflow: auto;
  padding: 10px 0;
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
}

.compare-table th,
.compare-table td {
  padding: 16px 18px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.compare-table th {
  background: rgba(47, 92, 255, 0.06);
  color: var(--brand-deep);
  font-size: 0.95rem;
}

.compare-table td {
  color: var(--muted);
}

.timeline {
  display: grid;
  gap: 16px;
  position: relative;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, rgba(47, 92, 255, 0.24), rgba(47, 92, 255, 0.08));
}

.timeline .route-card {
  position: relative;
  padding-left: 56px;
}

.timeline .route-card::before {
  content: "";
  position: absolute;
  left: 10px;
  top: 27px;
  width: 14px;
  height: 14px;
  border-radius: 999px;
  background: var(--brand);
  box-shadow: 0 0 0 6px rgba(47, 92, 255, 0.12);
}

.faq-list {
  display: grid;
  gap: 16px;
}

.faq-item {
  overflow: hidden;
}

.faq-question {
  width: 100%;
  border: 0;
  background: transparent;
  color: var(--ink);
  font: inherit;
  font-weight: 700;
  text-align: left;
  padding: 22px 24px;
  cursor: pointer;
}

.faq-answer {
  display: none;
  padding: 0 24px 24px;
}

.faq-item.open .faq-answer {
  display: block;
}

.related-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.related-tags a {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 16px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--line);
  color: var(--muted);
}

.cta-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 34px;
  color: #fff;
  background: linear-gradient(135deg, var(--hero), var(--brand-deep));
}

.cta-box p {
  margin: 0;
  max-width: 700px;
  color: rgba(255, 255, 255, 0.84);
}

.primary-btn,
.ghost-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 700;
}

.primary-btn {
  background: linear-gradient(135deg, var(--accent), #ffda73);
  color: #0d1634;
}

.ghost-btn {
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.26);
}

.muted {
  color: var(--muted);
}

.center {
  text-align: center;
}

@media (max-width: 1100px) {
  .portal-grid,
  .device-hub,
  .card-grid,
  .showcase-grid,
  .gallery-grid,
  .nav-grid,
  .check-grid,
  .issue-grid,
  .metric-grid,
  .step-grid,
  .route-grid,
  .quick-grid,
  .map-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  .wrap,
  .container,
  .page-wrap,
  .section-inner,
  .hero-inner,
  .content-wrap {
    width: min(100% - 28px, 1200px);
  }

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

  .header-inner {
    position: relative;
  }

  .nav {
    position: absolute;
    top: calc(100% + 8px);
    left: 14px;
    right: 14px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    padding: 14px;
    background: rgba(9, 13, 27, 0.98);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 18px;
  }

  .nav.open {
    display: flex;
  }

  .cover-content,
  .hero-layout,
  .split-grid,
  .dual-grid,
  .feature-grid,
  .two-col,
  .dual-panel,
  .portal-grid,
  .device-hub,
  .card-grid,
  .showcase-grid,
  .gallery-grid,
  .nav-grid,
  .check-grid,
  .issue-grid,
  .metric-grid,
  .step-grid,
  .route-grid,
  .quick-grid,
  .map-grid,
  .cta-box {
    grid-template-columns: 1fr;
  }

  .hero > img,
  .cover-hero > img,
  .full-bleed-hero > img,
  .hero-media img {
    min-height: 500px;
  }

  .hero-inner,
  .hero-content,
  .cover-content {
    padding: 76px 0 72px;
  }

  .cta-box {
    align-items: flex-start;
  }
}
/* premium hero repair */
.premium-hero {
  position: relative;
  min-height: clamp(620px, 78vh, 860px);
  display: flex;
  align-items: center;
  overflow: hidden;
  isolation: isolate;
  background: #070b16;
}

.premium-hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transform: none !important;
  z-index: 0;
}

.premium-hero-mask {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    radial-gradient(circle at 72% 42%, rgba(255,255,255,.06), transparent 34%),
    linear-gradient(90deg, rgba(5,8,18,.94) 0%, rgba(5,8,18,.78) 36%, rgba(5,8,18,.42) 66%, rgba(5,8,18,.70) 100%),
    linear-gradient(180deg, rgba(5,8,18,.22) 0%, rgba(5,8,18,.84) 100%);
}

.premium-hero-inner {
  position: relative;
  z-index: 2;
  width: min(1180px, calc(100% - 44px));
  margin: 0 auto;
  padding: clamp(72px, 9vw, 120px) 0;
}

.premium-hero-copy {
  max-width: 780px;
  color: #fff;
}

.premium-hero-copy .eyebrow {
  display: inline-flex;
  margin-bottom: 18px;
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: #f5c76b;
  font-weight: 800;
}

.premium-hero-copy h1 {
  margin: 0;
  font-size: clamp(42px, 6vw, 82px);
  line-height: 1.06;
  letter-spacing: -0.055em;
  color: #fff;
}

.premium-hero-copy p {
  margin: 24px 0 0;
  max-width: 720px;
  color: rgba(255,255,255,.88);
  font-size: clamp(16px, 1.6vw, 20px);
  line-height: 1.85;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.hero-tags span {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 8px 14px;
  border-radius: 999px;
  color: #fff;
  background: rgba(255,255,255,.13);
  border: 1px solid rgba(255,255,255,.22);
  backdrop-filter: blur(10px);
  font-size: 14px;
  font-weight: 700;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

.hero-actions a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 800;
  color: #111827;
  background: #f5c76b;
}

.hero-actions a + a {
  color: #fff;
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.22);
}

.hidden-standalone-hero-image {
  display: none !important;
}

.image-card img,
.visual-card img,
.showcase-card img,
.media-card img {
  width: 100%;
  height: auto;
  object-fit: cover;
  object-position: center;
  transform: none !important;
}

.image-card.is-small img,
.visual-card.is-small img,
.showcase-card.is-small img {
  width: auto;
  max-width: 100%;
  max-height: 220px;
  margin: 0 auto;
  object-fit: contain;
}

.cover-hero {
  position: relative;
  min-height: clamp(620px, 78vh, 860px);
  display: flex;
  align-items: center;
  overflow: hidden;
  isolation: isolate;
  background: #070b16;
}

.cover-hero > img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  min-height: 0;
  object-fit: cover;
  object-position: center;
  transform: none !important;
  z-index: 0;
}

.cover-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    radial-gradient(circle at 72% 42%, rgba(255,255,255,.06), transparent 34%),
    linear-gradient(90deg, rgba(5,8,18,.94) 0%, rgba(5,8,18,.78) 36%, rgba(5,8,18,.42) 66%, rgba(5,8,18,.70) 100%),
    linear-gradient(180deg, rgba(5,8,18,.22) 0%, rgba(5,8,18,.84) 100%);
}

.cover-content {
  position: relative;
  z-index: 2;
  width: min(1180px, calc(100% - 44px));
  margin: 0 auto;
  padding: clamp(72px, 9vw, 120px) 0;
  grid-template-columns: minmax(0, 1fr) !important;
}

.cover-content .hero-copy {
  max-width: 780px;
  color: #fff;
}

.cover-content .hero-copy p {
  color: rgba(255,255,255,.88);
}

.cover-content .device-hub,
.cover-content .resource-wall,
.cover-content .step-grid {
  margin-top: 28px;
}

@media (max-width: 900px) {
  .premium-hero,
  .cover-hero {
    min-height: 640px;
  }

  .premium-hero-inner,
  .cover-content {
    width: min(100% - 28px, 1180px);
    padding: 64px 0;
  }

  .premium-hero-copy h1,
  .cover-content h1 {
    font-size: clamp(36px, 11vw, 56px);
  }

  .premium-hero-copy p,
  .cover-content .hero-copy p {
    font-size: 16px;
  }
}