:root {
  --bg: #0b1220;
  --fg: #f4f7fb;
  --muted: #98a5b8;
  --card: #141d31;
  --card2: #1a2440;
  --border: #293653;
  --primary: #54adff;
  --primary-fg: #07111f;
  --online: #37d67a;
  --offline: #ff6470;
  --radius: 16px;
  --shadow: 0 18px 55px -34px #000;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family:
    Inter,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  line-height: 1.65;
  background-image: radial-gradient(
    60% 35% at 50% 0,
    rgba(84, 173, 255, 0.16),
    transparent 70%
  );
}
a {
  color: inherit;
  text-decoration: none;
}
button,
input {
  font: inherit;
  color: inherit;
}
select {
  font: inherit;
  color: inherit;
}
.container {
  max-width: 1040px;
  margin: auto;
  padding: 0 20px;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(11, 18, 32, 0.88);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.nav-wrap {
  max-width: 1100px;
  margin: auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-weight: 750;
  letter-spacing: -0.02em;
}
.brand-logo {
  display: block;
  width: 28px;
  height: 28px;
  border-radius: 7px;
  flex-shrink: 0;
}
.footer-grid .brand-logo {
  width: 34px;
  height: 34px;
  border-radius: 8px;
}
.main-nav {
  display: flex;
  gap: 22px;
  color: var(--muted);
  font-size: 14px;
}
.main-nav a:hover {
  color: var(--fg);
}
.menu-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 5px 9px;
}
.menu-toggle:focus-visible,
.main-nav a:focus-visible,
.btn:focus-visible,
.icon-btn:focus-visible,
.chip:focus-visible,
.toggle:focus-visible,
input:focus-visible,
select:focus-visible,
a:focus-visible {
  outline: 3px solid rgba(84, 173, 255, 0.55);
  outline-offset: 3px;
}
.hero {
  text-align: center;
  padding-top: 64px;
  padding-bottom: 34px;
}
.hero h1,
.content-card h1 {
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1.1;
  letter-spacing: -0.04em;
  margin: 12px 0;
}
.sub {
  max-width: 680px;
  margin: 0 auto;
  color: var(--muted);
}
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 99px;
  color: var(--muted);
  font-size: 12px;
  background: rgba(20, 29, 49, 0.6);
}
.dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--online);
}
.tool-section {
  padding-bottom: 70px;
}
.search {
  display: flex;
  gap: 10px;
  align-items: center;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: rgba(20, 29, 49, 0.72);
  margin-bottom: 16px;
}
.tool-controls {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(230px, 0.42fr);
  gap: 12px;
  margin-bottom: 16px;
}
.tool-controls .search {
  margin-bottom: 0;
}
.country-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: -2px 0 16px;
}
.country-chip {
  border: 1px solid var(--border);
  background: rgba(20, 29, 49, 0.55);
  color: var(--muted);
  border-radius: 999px;
  padding: 7px 11px;
  font-size: 12px;
  cursor: pointer;
}
.country-chip span {
  opacity: 0.72;
  margin-left: 3px;
}
.country-chip:hover,
.country-chip.active {
  color: var(--primary);
  border-color: rgba(84, 173, 255, 0.55);
}
.country-select {
  width: 100%;
  min-height: 50px;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 0 42px 0 14px;
  background: var(--card);
}
.tool-note {
  color: var(--muted);
  font-size: 12px;
  margin: -5px 2px 18px;
}
.search input {
  width: 100%;
  background: transparent;
  border: 0;
  outline: 0;
}
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}
.filters .right {
  margin-left: auto;
  display: flex;
  gap: 8px;
}
.chip,
.toggle {
  border: 1px solid var(--border);
  background: rgba(20, 29, 49, 0.55);
  border-radius: 99px;
  padding: 7px 13px;
  font-size: 12px;
  cursor: pointer;
}
.chip.active {
  color: var(--primary);
  border-color: rgba(84, 173, 255, 0.55);
}
.list {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 10px;
}
.row {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 14px;
  padding: 15px;
  border: 1px solid var(--border);
  background: rgba(20, 29, 49, 0.72);
  border-radius: 16px;
}
.info {
  display: flex;
  gap: 12px;
  min-width: 0;
  align-items: center;
}
.flag {
  display: grid;
  place-items: center;
  min-width: 44px;
  height: 44px;
  border: 1px solid var(--border);
  border-radius: 12px;
}
.meta {
  min-width: 0;
}
.title-row {
  display: flex;
  gap: 8px;
  align-items: center;
}
.title {
  font-weight: 700;
}
.country,
.host,
.ping {
  color: var(--muted);
  font-size: 12px;
}
.ping.fast {
  color: var(--online);
}
.ping.mid {
  color: #f6c85f;
}
.ping.slow {
  color: var(--offline);
}
.host {
  font-family: monospace;
  overflow: hidden;
  text-overflow: ellipsis;
}
.badge {
  font-size: 10px;
  border: 1px solid var(--border);
  padding: 2px 7px;
  border-radius: 99px;
}
.badge.online {
  color: var(--online);
}
.badge.offline {
  color: var(--offline);
}
.badge.uncertain {
  color: #f6c85f;
}
.actions {
  display: flex;
  gap: 8px;
}
.btn,
.icon-btn {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 9px 14px;
  background: var(--primary);
  color: var(--primary-fg);
  cursor: pointer;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.icon-btn {
  padding: 9px;
  background: transparent;
  color: var(--muted);
}
.load-more {
  display: flex;
  align-items: center;
  gap: 12px;
  justify-content: center;
  margin-top: 24px;
}
.load-more button {
  padding: 9px 16px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--fg);
  white-space: nowrap;
}
.load-more span {
  white-space: nowrap;
  color: var(--muted);
}
.empty,
.error {
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: 14px;
  color: var(--muted);
}
.skeleton {
  min-height: 108px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: linear-gradient(
    100deg,
    rgba(20, 29, 49, 0.72) 20%,
    rgba(42, 56, 87, 0.8) 40%,
    rgba(20, 29, 49, 0.72) 60%
  );
  background-size: 200% 100%;
  animation: loading 1.4s ease-in-out infinite;
}
@keyframes loading {
  to {
    background-position-x: -200%;
  }
}
.content-section,
.page-shell {
  max-width: 1040px;
  margin: auto;
  padding: 0 20px 80px;
}
.article-inner,
.content-card {
  border: 1px solid var(--border);
  background: rgba(20, 29, 49, 0.55);
  border-radius: 24px;
  padding: clamp(24px, 5vw, 52px);
  box-shadow: var(--shadow);
}
.article-inner h2,
.content-card h2 {
  font-size: 1.55rem;
  line-height: 1.25;
  margin: 42px 0 14px;
}
.article-inner h3,
.content-card h3 {
  font-size: 1.08rem;
  margin: 26px 0 8px;
}
.article-inner p,
.content-card p,
.article-inner li,
.content-card li {
  color: var(--muted);
}
.article-inner a,
.content-card a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.article-inner table,
.content-card table {
  width: 100%;
  border-collapse: collapse;
  margin: 22px 0;
  display: block;
  overflow: auto;
}
.article-inner th,
.article-inner td,
.content-card th,
.content-card td {
  border: 1px solid var(--border);
  padding: 11px 13px;
  text-align: left;
  min-width: 150px;
}
.feature-grid,
.post-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 22px 0;
}
.feature-grid > div,
.post-card,
.contact-box {
  border: 1px solid var(--border);
  border-radius: 15px;
  padding: 20px;
  background: rgba(11, 18, 32, 0.4);
}
.post-card h2,
.post-card h3 {
  margin-top: 0;
}
.post-card {
  text-decoration: none !important;
  overflow: hidden;
}
.post-card img {
  display: block;
  width: calc(100% + 40px);
  max-width: none;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  margin: -20px -20px 18px;
  border-radius: 15px 15px 0 0;
  border-bottom: 1px solid var(--border);
}
.article-hero {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border: 1px solid var(--border);
  border-radius: 16px;
  margin: 24px 0 30px;
  background: var(--card2);
}
.quick-answer {
  border-left: 4px solid var(--primary);
  padding: 14px 18px;
  margin: 24px 0;
  border-radius: 0 12px 12px 0;
  background: rgba(84, 173, 255, 0.08);
}
.quick-answer p {
  margin: 0;
}
.page-shell {
  padding-top: 54px;
}
.breadcrumbs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 12px;
  margin-bottom: 24px;
}
.byline {
  font-size: 13px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 20px;
}
.related {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  border-top: 1px solid var(--border);
  margin-top: 38px;
  padding-top: 24px;
}
.site-footer {
  border-top: 1px solid var(--border);
  background: #080e19;
  padding: 48px 20px 20px;
}
.footer-grid {
  max-width: 1040px;
  margin: auto;
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 28px;
}
.footer-grid p,
.footer-grid a {
  display: block;
  color: var(--muted);
  font-size: 13px;
  margin: 8px 0;
}
.footer-grid h2 {
  font-size: 14px;
}
.footer-bottom {
  max-width: 1040px;
  margin: 28px auto 0;
  padding-top: 18px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--muted);
}
.modal {
  position: fixed;
  inset: 0;
  z-index: 60;
  background: rgba(0, 0, 0, 0.75);
  display: grid;
  place-items: center;
  padding: max(12px, env(safe-area-inset-top)) max(12px, env(safe-area-inset-right)) max(12px, env(safe-area-inset-bottom)) max(12px, env(safe-area-inset-left));
  overflow: auto;
  overscroll-behavior: contain;
}
.modal-card {
  width: min(390px, 100%);
  max-height: calc(100dvh - 24px);
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow-y: auto;
  overscroll-behavior: contain;
  box-shadow: var(--shadow);
}
.modal-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 16px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 2;
  background: var(--card2);
}
.modal-head .l {
  display: flex;
  gap: 10px;
  min-width: 0;
}
.modal-head .t,
.modal-head .s {
  overflow-wrap: anywhere;
}
.modal-head .s {
  color: var(--muted);
  font-size: 11px;
  line-height: 1.35;
}
.modal-head button {
  background: transparent;
  border: 0;
}
.modal-body {
  padding: 22px;
}
.qr {
  width: min(100%, 320px);
  aspect-ratio: 1;
  margin: 0 auto;
  background: #fff;
  padding: 12px;
  border-radius: 12px;
}
.qr img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.hint {
  text-align: center;
  color: var(--muted);
}
.modal-body .btn {
  display: flex;
  justify-content: center;
}
.stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 12px;
}
.stat {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px;
  text-align: center;
  font-size: 11px;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
}
@media (max-width: 720px) {
  .modal {
    place-items: start center;
    padding-top: max(10px, env(safe-area-inset-top));
    padding-bottom: max(10px, env(safe-area-inset-bottom));
  }
  .modal-card {
    width: min(100%, 430px);
    max-height: calc(100dvh - 20px);
    border-radius: 16px;
  }
  .modal-head {
    padding: 12px 14px;
  }
  .modal-head .flag {
    min-width: 36px;
    width: 36px;
    height: 36px;
  }
  .modal-body {
    padding: 14px;
  }
  .qr {
    width: min(76vw, 280px);
    padding: 9px;
  }
  .hint {
    margin: 10px auto;
    font-size: 12px;
    line-height: 1.45;
  }
  .modal-body .btn {
    width: 100%;
    min-height: 44px;
  }
  .country-chips {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 4px;
    scrollbar-width: thin;
  }
  .country-chip {
    flex: 0 0 auto;
  }
  .menu-toggle {
    display: block;
  }
  .main-nav {
    display: none;
    position: absolute;
    top: 60px;
    left: 16px;
    right: 16px;
    background: var(--card2);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 14px;
    flex-direction: column;
  }
  .main-nav.open {
    display: flex;
  }
  .filters .right {
    width: 100%;
    margin-left: 0;
  }
  .load-more {
    flex-direction: column;
    gap: 8px;
  }
  .tool-controls {
    grid-template-columns: 1fr;
  }
  .row {
    grid-template-columns: 1fr;
    padding: 14px;
  }
  .actions {
    justify-content: stretch;
  }
  .actions .btn {
    flex: 1;
    justify-content: center;
    display: inline-flex;
    align-items: center;
    gap: 7px;
  }
  .feature-grid,
  .post-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .article-inner,
  .content-card {
    border-radius: 18px;
  }
  .hero {
    padding-top: 42px;
  }
  .page-shell,
  .content-section {
    padding-left: 14px;
    padding-right: 14px;
  }
  .article-inner,
  .content-card {
    padding: 22px 18px;
  }
  .title-row {
    align-items: flex-start;
    flex-direction: column;
    gap: 5px;
  }
  .flag {
    min-width: 40px;
    height: 40px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .skeleton {
    animation: none;
  }
}