/* 统一说明：
   - 纯静态单页：HTML + CSS + JS
   - 视觉风格：深色科技感、渐变霓虹、玻璃拟态
   - 注释统一中文（按你的约定）
*/

:root {
  --bg: #070a12;
  --bg-2: #0b1020;
  --card: rgba(255, 255, 255, 0.06);
  --card-2: rgba(255, 255, 255, 0.08);
  --line: rgba(255, 255, 255, 0.12);
  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.70);
  --muted-2: rgba(255, 255, 255, 0.56);
  --brand: #6cf0ff;
  --brand-2: #8b5cff;
  --good: #35ffb5;
  --warn: #ffcc66;
  --danger: #ff5c7a;
  --shadow: 0 18px 60px rgba(0, 0, 0, 0.55);
  --shadow-soft: 0 12px 30px rgba(0, 0, 0, 0.35);
  --radius: 18px;
  --radius-sm: 12px;
  --container: 1120px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: radial-gradient(1200px 700px at 15% 10%, rgba(139, 92, 255, 0.20), transparent 55%),
    radial-gradient(900px 600px at 85% 15%, rgba(108, 240, 255, 0.18), transparent 60%),
    radial-gradient(800px 500px at 55% 95%, rgba(53, 255, 181, 0.12), transparent 55%),
    linear-gradient(180deg, var(--bg), var(--bg-2));
  color: var(--text);
  line-height: 1.6;
}

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

.container {
  width: min(var(--container), calc(100% - 48px));
  margin: 0 auto;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 8px;
  padding: 10px 14px;
  background: rgba(0, 0, 0, 0.75);
  border: 1px solid var(--line);
  border-radius: 10px;
}

.skip-link:focus {
  left: 12px;
  z-index: 1000;
}

/* 顶部导航 */
.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(7, 10, 18, 0.62);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.10);
}

.topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 14px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 180px;
}

.brand__mark {
  width: 56px;
  height: 56px;
  flex-shrink: 0;
  background: url("logo.svg") center/contain no-repeat;
  filter: drop-shadow(0 0 8px rgba(108, 240, 255, 0.3));
}




.brand__name {
  font-weight: 650;
  letter-spacing: 0.3px;
}

.brand--footer .brand__name {
  font-size: 14px;
  opacity: 0.95;
}

.nav {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav__link {
  padding: 10px 10px;
  border-radius: 12px;
  font-size: 14px;
  color: var(--muted);
  transition: background 180ms ease, color 180ms ease, transform 180ms ease;
}

.nav__link:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
}

.nav__link.is-active {
  color: var(--text);
  background: rgba(108, 240, 255, 0.10);
  border: 1px solid rgba(108, 240, 255, 0.22);
}

.nav__link--primary {
  color: var(--text);
  background: linear-gradient(90deg, rgba(108, 240, 255, 0.18), rgba(139, 92, 255, 0.18));
  border: 1px solid rgba(255, 255, 255, 0.14);
}


.nav__link--cta {
  color: #070a12;
  background: linear-gradient(90deg, #6cf0ff, #8b5cff);
  border: 1px solid rgba(108, 240, 255, 0.35);
  font-weight: 700;
  padding: 6px 14px;
  border-radius: 999px;
  box-shadow: 0 0 12px rgba(108, 240, 255, 0.25);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.nav__link--cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 18px rgba(108, 240, 255, 0.45);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  border-radius: 12px;
  padding: 10px 12px;
  cursor: pointer;
}

.nav-toggle__bar {
  display: block;
  width: 18px;
  height: 2px;
  background: rgba(255, 255, 255, 0.75);
  border-radius: 2px;
  margin: 2px 0;
}

.nav-toggle__label {
  font-size: 13px;
  color: var(--muted);
}

/* 首屏 */
.hero {
  position: relative;
  overflow: hidden;
  padding: 86px 0 44px;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(900px 420px at 20% 25%, rgba(108, 240, 255, 0.16), transparent 60%),
    radial-gradient(700px 520px at 80% 15%, rgba(139, 92, 255, 0.18), transparent 60%),
    radial-gradient(600px 520px at 70% 85%, rgba(53, 255, 181, 0.10), transparent 60%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent);
  pointer-events: none;
}

.hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 28px;
  align-items: stretch;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 13px;
  width: fit-content;
}

.badge__dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--brand), var(--brand-2));
  box-shadow: 0 0 16px rgba(108, 240, 255, 0.45);
}

.hero__title {
  margin: 14px 0 10px;
  font-size: clamp(34px, 4.2vw, 54px);
  line-height: 1.08;
  letter-spacing: -0.6px;
}

.hero__subtitle {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
  max-width: 64ch;
}

.hero__actions {
  display: flex;
  gap: 12px;
  margin-top: 22px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 42px;
  padding: 0 16px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 14px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
  cursor: pointer;
}

.btn:hover {
  transform: translateY(-1px);
  border-color: rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.08);
}

.btn--primary {
  border: 1px solid rgba(108, 240, 255, 0.30);
  background: linear-gradient(90deg, rgba(108, 240, 255, 0.18), rgba(139, 92, 255, 0.18));
  box-shadow: 0 14px 40px rgba(108, 240, 255, 0.10);
}

.btn--ghost {
  background: rgba(255, 255, 255, 0.03);
}

.btn--block {
  width: 100%;
  margin-top: 18px;
  align-self: stretch;
}

.price-card .btn--block:first-of-type,
.price-card .btn--block {
  margin-top: auto;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 22px;
}

.metric {
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.10);
  background: rgba(255, 255, 255, 0.04);
  padding: 12px 12px;
}

.metric__value {
  font-weight: 720;
  font-size: 16px;
  letter-spacing: 0.2px;
}

.metric__label {
  font-size: 12px;
  color: var(--muted-2);
  margin-top: 2px;
}

.hero__fineprint {
  margin: 16px 0 0;
  font-size: 12px;
  color: var(--muted-2);
  max-width: 76ch;
}

/* 右侧玻璃卡片 */
.glass-card {
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.10), rgba(255, 255, 255, 0.04));
  box-shadow: var(--shadow);
  overflow: hidden;
}


/* 面板顶部标签 */
.glass-card__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  margin-bottom: 16px;
  border-radius: 999px;
  background: rgba(108, 240, 255, 0.08);
  border: 1px solid rgba(108, 240, 255, 0.25);
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  width: fit-content;
  align-self: flex-start;
}

.hero__panel {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  padding-top: 24px;
}

.glass-card__header {
  display: flex;
  gap: 8px;
  padding: 16px 16px 0;
  flex-wrap: wrap;
}

.pill {
  font-size: 12px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(108, 240, 255, 0.22);
  background: rgba(108, 240, 255, 0.10);
  color: rgba(255, 255, 255, 0.88);
}

.pill--muted {
  border-color: rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.06);
  color: var(--muted);
}

.glass-card__body {
  padding: 16px;
  display: grid;
  gap: 14px;
}

.signal {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.signal__line {
  height: 10px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(108, 240, 255, 0.25), rgba(139, 92, 255, 0.22));
  filter: drop-shadow(0 0 10px rgba(108, 240, 255, 0.15));
}

.signal__line:nth-child(2) { opacity: 0.85; }
.signal__line:nth-child(3) { opacity: 0.72; }
.signal__line:nth-child(4) { opacity: 0.62; }

.terminal {
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(0, 0, 0, 0.28);
  overflow: hidden;
}

.terminal__top {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.10);
  background: rgba(255, 255, 255, 0.04);
}

.dot {
  width: 9px;
  height: 9px;
  border-radius: 999px;
  opacity: 0.85;
}

.dot--r { background: rgba(255, 92, 122, 0.9); }
.dot--y { background: rgba(255, 204, 102, 0.9); }
.dot--g { background: rgba(53, 255, 181, 0.9); }

.terminal__title {
  font-size: 12px;
  color: var(--muted);
  margin-left: 6px;
}

.terminal__body {
  margin: 0;
  padding: 12px 12px 14px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 12.5px;
  color: rgba(255, 255, 255, 0.86);
  white-space: pre-wrap;
}

.glass-card__footer {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  padding: 14px 16px 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.10);
  background: rgba(255, 255, 255, 0.03);
}

.mini {
  display: grid;
  gap: 4px;
}

.mini__k {
  font-size: 12px;
  color: var(--muted-2);
}

.mini__v {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.86);
}

/* 通用区块 */
.section {
  padding: 74px 0;
}

.section--alt {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}


/* 付费周期切换 */
.pricing-toggle {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin: 18px 0 22px;
  padding: 4px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.05);
}

.pricing-toggle__btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.pricing-toggle__btn:hover {
  color: var(--text);
}

.pricing-toggle__btn.is-active {
  color: #070a12;
  background: linear-gradient(135deg, #6cf0ff, #8b5cff);
  box-shadow: 0 6px 18px rgba(108, 240, 255, 0.25);
}

.pricing-toggle__tag {
  display: inline-block;
  padding: 2px 7px;
  border-radius: 999px;
  background: rgba(53, 255, 181, 0.18);
  color: var(--good);
  font-size: 11px;
  font-weight: 600;
  line-height: 1.4;
}

.pricing-toggle__btn.is-active .pricing-toggle__tag {
  background: rgba(7, 10, 18, 0.22);
  color: #070a12;
}

.section__header {
  margin-bottom: 26px;
}

.section__title {
  margin: 0;
  font-size: 28px;
  letter-spacing: -0.3px;
}

.section__subtitle {
  margin: 10px 0 0;
  color: var(--muted);
  max-width: 76ch;
}

.grid {
  display: grid;
  gap: 14px;
}

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

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

.card {
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.05);
  padding: 18px 18px;
  box-shadow: var(--shadow-soft);
}

.card--flat {
  box-shadow: none;
  background: rgba(255, 255, 255, 0.04);
}

.card__icon {
  width: 38px;
  height: 38px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, rgba(108, 240, 255, 0.16), rgba(139, 92, 255, 0.14));
  border: 1px solid rgba(255, 255, 255, 0.12);
  margin-bottom: 10px;
}

.card__title {
  margin: 0 0 8px;
  font-size: 16px;
  letter-spacing: -0.2px;
}

.card__text {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

/* 关于服务（SEO / LLM 友好内容区） */
.about-card {
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  padding: 20px 20px;
}

.about-card__lead {
  margin: 0 0 16px;
  color: rgba(255, 255, 255, 0.88);
  font-size: 15px;
  line-height: 1.75;
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.about-item {
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.10);
  background: rgba(255, 255, 255, 0.03);
  padding: 14px 14px;
}

.about-item__title {
  margin: 0 0 6px;
  font-size: 14px;
  color: rgba(108, 240, 255, 0.92);
}

.about-item__text {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
  word-break: break-word;
}

.about-item__text a {
  color: rgba(108, 240, 255, 0.92);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* 步骤 */
.steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.step {
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  padding: 18px 18px;
}

.step__num {
  font-weight: 800;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: rgba(108, 240, 255, 0.9);
}

.step__title {
  margin: 10px 0 6px;
  font-size: 16px;
}

.step__text {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.cta-row {
  margin-top: 18px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* 价格区 */
.pricing {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
  align-items: stretch;
}

.price-card {
  position: relative;
  display: flex;
  flex-direction: column;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.05);
  padding: 18px;
  box-shadow: var(--shadow-soft);
  height: 100%;
}

.price-card--featured {
  border-color: rgba(108, 240, 255, 0.28);
  background: linear-gradient(180deg, rgba(108, 240, 255, 0.10), rgba(255, 255, 255, 0.04));
}

.price-card__badge {
  position: absolute;
  top: 14px;
  right: 14px;
  font-size: 12px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(108, 240, 255, 0.25);
  background: rgba(108, 240, 255, 0.10);
  color: rgba(255, 255, 255, 0.90);
}

.price-card__name {
  margin: 0;
  font-size: 16px;
}

/* 套餐名称图标 */
.price-card__icon {
  display: inline-block;
  margin-right: 4px;
  font-size: 15px;
  line-height: 1;
  vertical-align: -1px;
}

.price-card__icon[data-hot="true"] {
  animation: hotPulse 2.2s ease-in-out infinite;
}

@keyframes hotPulse {
  0%, 100% { transform: scale(1); filter: brightness(1); }
  50% { transform: scale(1.18); filter: brightness(1.3); }
}



.price-card__desc {
  margin: 6px 0 0;
  display: flex;
  align-items: baseline;
  gap: 4px;
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
}

.price-card__amount {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
}

.price-card__period {
  color: var(--muted-2);
  font-size: 13px;
  font-weight: 500;
}

.price-card__yearly {
  margin: 4px 0 0;
  display: flex;
  align-items: baseline;
  gap: 8px;
  color: var(--muted-2);
  font-size: 12.5px;
}

.price-card__avg {
  color: var(--good);
  font-weight: 600;
}

.price-card__price {
  margin-top: 14px;
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.price-card__currency {
  color: var(--muted);
  font-weight: 700;
}

.price-card__value {
  font-size: 36px;
  font-weight: 820;
  letter-spacing: -0.6px;
}

.price-card__period {
  color: var(--muted);
  font-size: 13px;
}

.list {
  margin: 14px 0 0;
  padding: 0 0 0 18px;
  color: var(--muted);
  font-size: 14px;
  flex: 1 1 auto;
}

.price-card__top {
  flex: 0 0 auto;
}

.list--dense {
  margin-top: 10px;
}

.list--dense li {
  margin: 6px 0;
}


/* 支付方式块 */
.payment {
  margin-top: 24px;
  border-radius: var(--radius);
  padding: 22px;
  background: linear-gradient(135deg, rgba(108, 240, 255, 0.1) 0%, rgba(139, 92, 255, 0.08) 100%);
  border: 1px solid rgba(108, 240, 255, 0.2);
  box-shadow: var(--shadow-soft);
}

.payment__head {
  margin-bottom: 18px;
  text-align: center;
}

.payment__title {
  margin: 0;
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.2px;
  color: var(--text);
}

.payment__sub {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 13.5px;
}

.payment__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}

.payment__item {
  position: relative;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  border-radius: var(--radius-sm);
  background: rgba(7, 10, 18, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}

.payment__item:hover {
  border-color: rgba(108, 240, 255, 0.35);
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(108, 240, 255, 0.18);
}

.payment__icon {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.06);
}

.payment__meta {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.payment__name {
  font-size: 15.5px;
  font-weight: 600;
  color: var(--text);
}

.payment__note {
  font-size: 12.5px;
  color: var(--muted-2);
}

.payment__tag {
  position: absolute;
  top: 10px;
  right: 12px;
  padding: 3px 8px;
  font-size: 11px;
  font-weight: 600;
  border-radius: 999px;
  background: rgba(108, 240, 255, 0.12);
  color: var(--brand);
  border: 1px solid rgba(108, 240, 255, 0.25);
}

.payment__tag--hot {
  background: rgba(255, 92, 122, 0.14);
  border-color: rgba(255, 92, 122, 0.3);
  color: var(--danger);
}

.payment__hint {
  margin: 16px 0 0;
  text-align: center;
  font-size: 13px;
  color: var(--muted-2);
}

.note {
  margin-top: 16px;
  border-radius: var(--radius);
  border: 1px dashed rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.03);
  padding: 16px 16px;
}

.note__title {
  font-weight: 700;
  font-size: 14px;
}

.note__text {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 14px;
}


/* 3D 地球容器 */
.globe-container {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 380px;
  border-radius: var(--radius);
  overflow: hidden;
  background: radial-gradient(ellipse at center, rgba(14, 24, 48, 0.95) 0%, rgba(7, 10, 18, 1) 70%);
  border: 1px solid rgba(108, 240, 255, 0.15);
}

#globe-canvas {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 380px;
}

.globe-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 16px 18px;
  background: linear-gradient(transparent, rgba(7, 10, 18, 0.85));
  pointer-events: none;
}

.globe-overlay .tags {
  margin-bottom: 6px;
}

.globe-overlay .map-card__title {
  margin: 0;
  font-size: 15px;
}

.globe-overlay .map-card__text {
  margin: 4px 0 0;
  font-size: 13px;
  color: var(--muted-2);
}

/* 覆盖与地图示意 */
.map-card {
  position: relative;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.12);
  overflow: hidden;
  background: rgba(255, 255, 255, 0.04);
  min-height: 260px;
}

.map-card__bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 26px 26px;
  opacity: 0.55;
  mask-image: radial-gradient(circle at 40% 30%, #000 15%, transparent 70%);
}

.map-card__content {
  position: relative;
  padding: 18px 18px;
}

.tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.tag {
  font-size: 12px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.05);
  color: var(--muted);
}

.map-card__title {
  margin: 14px 0 8px;
}

.map-card__text {
  margin: 0;
  color: var(--muted);
}

.stack {
  display: grid;
  gap: 12px;
}

/* FAQ */
.faq {
  display: grid;
  gap: 10px;
}

.faq__item {
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  padding: 12px 14px;
}

.faq__q {
  cursor: pointer;
  font-weight: 650;
  color: rgba(255, 255, 255, 0.90);
}

.faq__a {
  margin-top: 10px;
  color: var(--muted);
  font-size: 14px;
}

/* 下载区 */
.download-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.dl {
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  overflow: hidden;
}

.dl__head {
  padding: 16px 16px 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.03);
}

.dl__title {
  margin: 0;
  font-size: 16px;
}

.dl__desc {
  margin: 6px 0 0;
  color: var(--muted-2);
  font-size: 13px;
}

.dl__list {
  display: grid;
}

.dl-item {
  display: grid;
  gap: 2px;
  padding: 12px 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  transition: background 150ms ease, transform 150ms ease;
}

.dl-item:hover {
  background: rgba(255, 255, 255, 0.05);
  transform: translateY(-1px);
}

.dl-item__name {
  font-weight: 650;
}

.dl-item__note {
  font-size: 13px;
  color: var(--muted);
}

.support {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 14px;
  margin-top: 14px;
}

.support__card {
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  padding: 16px 16px;
}

.support__card--highlight {
  border-color: rgba(108, 240, 255, 0.25);
  background: linear-gradient(180deg, rgba(108, 240, 255, 0.10), rgba(255, 255, 255, 0.04));
}

.support__title {
  margin: 0;
  font-size: 16px;
}

.support__hint {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.support__actions {
  margin-top: 14px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* 页脚 */
.footer {
  margin-top: 40px;
  padding: 28px 0 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(0, 0, 0, 0.18);
}

.footer__inner {
  display: flex;
  align-items: flex-start;
  gap: 24px;
  padding-bottom: 24px;
}

.footer__left {
  flex: 1 1 45%;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
}

.footer__right {
  flex: 1 1 55%;
  display: flex;
  justify-content: flex-end;
  gap: 48px;
  min-width: 0;
}

.footer__text {
  margin: 0;
  color: var(--muted-2);
  font-size: 13px;
  line-height: 1.6;
}

.footer__social-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(108, 240, 255, 0.22);
  background: rgba(108, 240, 255, 0.05);
  color: var(--text);
  font-size: 13px;
  font-weight: 500;
  transition: background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
  width: fit-content;
}

.footer__social-link:hover {
  background: rgba(108, 240, 255, 0.14);
  border-color: rgba(108, 240, 255, 0.45);
  box-shadow: 0 0 14px rgba(108, 240, 255, 0.25);
}

.footer__heading {
  margin: 0 0 10px;
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

.footer__links {
  display: grid;
  grid-template-columns: repeat(2, auto);
  gap: 6px 18px;
}

.footer__links a {
  color: var(--muted-2);
  font-size: 13px;
  padding: 2px 0;
  transition: color 0.2s ease;
  white-space: nowrap;
}

.footer__links a:hover {
  color: var(--brand);
}

.footer__bottom {
  padding: 16px 0 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer__meta {
  color: rgba(255, 255, 255, 0.42);
  font-size: 12px;
  text-align: center;
}

@media (max-width: 720px) {
  .footer__inner {
    flex-direction: column;
    gap: 24px;
  }
  .footer__right {
    gap: 32px;
  }
}

.to-top {
  position: fixed;
  right: 18px;
  bottom: 18px;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.9);
  cursor: pointer;
  box-shadow: var(--shadow-soft);
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
  transition: opacity 160ms ease, transform 160ms ease, background 160ms ease;
}

.to-top.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.to-top:hover {
  background: rgba(255, 255, 255, 0.08);
}

/* 响应式 */
@media (max-width: 980px) {
  .hero__inner {
    grid-template-columns: 1fr;
  }

  .about-grid {
    grid-template-columns: 1fr;
  }

  .metrics {
    grid-template-columns: 1fr 1fr;
  }

  .grid--3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .steps {
    grid-template-columns: 1fr;
  }

  .pricing {
    grid-template-columns: 1fr;
  }

  .download-grid {
    grid-template-columns: 1fr;
  }

  .support {
    grid-template-columns: 1fr;
  }


.nav__link--cta {
  color: #070a12;
  background: linear-gradient(90deg, #6cf0ff, #8b5cff);
  border: 1px solid rgba(108, 240, 255, 0.35);
  font-weight: 700;
  padding: 6px 14px;
  border-radius: 999px;
  box-shadow: 0 0 12px rgba(108, 240, 255, 0.25);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.nav__link--cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 18px rgba(108, 240, 255, 0.45);
}

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

  .nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 68px;
    padding: 12px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.10);
    background: rgba(7, 10, 18, 0.82);
    backdrop-filter: blur(16px);
  }


  .nav__link--fire {
    color: #fff;
    background: linear-gradient(90deg, #ff6a00, #ff2d55);
    border: 1px solid rgba(255, 106, 0, 0.45);
    font-weight: 700;
    padding: 10px 14px;
    border-radius: 999px;
    box-shadow: 0 0 14px rgba(255, 106, 0, 0.35);
    text-align: center;
  }

  .nav__link--fire:hover {
    box-shadow: 0 0 22px rgba(255, 106, 0, 0.6);
    transform: none;
  }

  .nav.is-open {
    display: flex;
  }

  .nav__link {
    padding: 12px 12px;
  }
}

@media (max-width: 520px) {
  .container {
    width: min(var(--container), calc(100% - 28px));
  }

  .metrics {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto !important;
    transition: none !important;
    animation: none !important;
  }
}

/* 教程 / 软文页 */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.blog-card {
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  padding: 18px 18px;
  display: grid;
  gap: 8px;
}

.blog-card__tag {
  margin: 0;
  font-size: 12px;
  color: rgba(108, 240, 255, 0.9);
}

.blog-card__title {
  margin: 0;
  font-size: 17px;
  line-height: 1.35;
}

.blog-card__title a:hover {
  color: rgba(108, 240, 255, 0.95);
}

.blog-card__desc {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.blog-card__link {
  margin-top: 4px;
  font-size: 13px;
  color: rgba(108, 240, 255, 0.92);
}

.article-wrap {
  padding: 36px 0 74px;
}

.article-header {
  margin-bottom: 22px;
}

.article-breadcrumb {
  margin: 0 0 12px;
  font-size: 13px;
  color: var(--muted-2);
}

.article-breadcrumb a {
  color: var(--muted);
}

.article-breadcrumb a:hover {
  color: var(--text);
}

.article-title {
  margin: 0 0 10px;
  font-size: clamp(28px, 3.5vw, 40px);
  line-height: 1.15;
  letter-spacing: -0.4px;
}

.article-meta {
  margin: 0;
  color: var(--muted-2);
  font-size: 13px;
}

.article-summary {
  margin: 16px 0 0;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(108, 240, 255, 0.20);
  background: rgba(108, 240, 255, 0.08);
  color: rgba(255, 255, 255, 0.88);
  font-size: 14px;
  line-height: 1.7;
}

.article-body {
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  padding: 22px 22px;
}

.article-body h2 {
  margin: 28px 0 10px;
  font-size: 22px;
  letter-spacing: -0.2px;
}

.article-body h2:first-child {
  margin-top: 0;
}

.article-body h3 {
  margin: 18px 0 8px;
  font-size: 17px;
}

.article-body p,
.article-body li {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
}

.article-body p {
  margin: 0 0 12px;
}

.article-body ul,
.article-body ol {
  margin: 0 0 14px;
  padding-left: 20px;
}

.article-body a {
  color: rgba(108, 240, 255, 0.92);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0 16px;
  font-size: 14px;
}

.article-body th,
.article-body td {
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 10px 12px;
  text-align: left;
}

.article-body th {
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.9);
}

.article-body td {
  color: var(--muted);
}

.article-cta {
  margin-top: 18px;
  padding: 16px 16px;
  border-radius: var(--radius);
  border: 1px solid rgba(108, 240, 255, 0.25);
  background: linear-gradient(180deg, rgba(108, 240, 255, 0.10), rgba(255, 255, 255, 0.04));
}

.article-cta__title {
  margin: 0 0 8px;
  font-size: 16px;
}

.article-cta__text {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 14px;
}

.article-related {
  margin-top: 18px;
}

.article-related__title {
  margin: 0 0 10px;
  font-size: 16px;
}

.article-related__list {
  display: grid;
  gap: 8px;
}

.article-related__list a {
  display: block;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.10);
  background: rgba(255, 255, 255, 0.03);
  color: var(--muted);
  font-size: 14px;
}

.article-related__list a:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

@media (max-width: 980px) {
  .blog-grid {
    grid-template-columns: 1fr;
  }
}

/* 节点监控页 */
.monitor-panel {
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  padding: 18px 18px;
}

.monitor-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.monitor-stat {
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.10);
  background: rgba(255, 255, 255, 0.03);
  padding: 12px 12px;
}

.monitor-stat--ok {
  border-color: rgba(53, 255, 181, 0.25);
  background: rgba(53, 255, 181, 0.08);
}

.monitor-stat--warn {
  border-color: rgba(255, 204, 102, 0.25);
  background: rgba(255, 204, 102, 0.08);
}

.monitor-stat__label {
  font-size: 12px;
  color: var(--muted-2);
}

.monitor-stat__value {
  margin-top: 4px;
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.4px;
}

.monitor-stat__value--sm {
  font-size: 14px;
  font-weight: 600;
}

.monitor-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 14px;
  flex-wrap: wrap;
}

.monitor-status {
  margin: 0;
  font-size: 13px;
  color: var(--muted);
}

.monitor-status[data-type='ok'] {
  color: rgba(53, 255, 181, 0.92);
}

.monitor-status[data-type='error'] {
  color: rgba(255, 92, 122, 0.95);
}

.monitor-table-wrap {
  margin-top: 14px;
  overflow-x: auto;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.10);
}

.monitor-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 920px;
}

.monitor-table th,
.monitor-table td {
  padding: 12px 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  text-align: left;
  font-size: 13px;
  vertical-align: top;
}

.monitor-table th {
  color: rgba(255, 255, 255, 0.88);
  background: rgba(255, 255, 255, 0.05);
  font-weight: 650;
}

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

.monitor-table tr.is-online td:first-child {
  color: rgba(53, 255, 181, 0.92);
}

.monitor-table tr.is-offline td:first-child {
  color: rgba(255, 92, 122, 0.92);
}

.monitor-sub {
  display: block;
  margin-top: 2px;
  font-size: 11px;
  color: var(--muted-2);
}

.monitor-empty {
  text-align: center;
  color: var(--muted-2);
  padding: 24px 12px !important;
}

.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  margin-right: 6px;
  vertical-align: middle;
}

.status-dot--on {
  background: rgba(53, 255, 181, 0.95);
  box-shadow: 0 0 10px rgba(53, 255, 181, 0.45);
}

.status-dot--off {
  background: rgba(255, 92, 122, 0.9);
}

@media (max-width: 980px) {
  .monitor-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 520px) {
  .monitor-stats {
    grid-template-columns: 1fr;
  }
}


.nav__link--fire {
  color: #fff;
  background: linear-gradient(90deg, #ff6a00, #ff2d55);
  border: 1px solid rgba(255, 106, 0, 0.45);
  font-weight: 700;
  padding: 6px 14px;
  border-radius: 999px;
  box-shadow: 0 0 14px rgba(255, 106, 0, 0.35);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  animation: firePulse 2s ease-in-out infinite;
}

.nav__link--fire:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 22px rgba(255, 106, 0, 0.6);
}

@keyframes firePulse {
  0%, 100% { box-shadow: 0 0 14px rgba(255, 106, 0, 0.35); }
  50% { box-shadow: 0 0 22px rgba(255, 106, 0, 0.65); }
}

.free-use {
  background: linear-gradient(180deg, rgba(255, 106, 0, 0.06), rgba(255, 45, 85, 0.04));
  border-top: 1px solid rgba(255, 106, 0, 0.15);
  border-bottom: 1px solid rgba(255, 106, 0, 0.15);
}


.table-wrap {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin-top: 8px;
}
.free-use__table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 24px;
  font-size: 15px;
}

.free-use__table th,
.free-use__table td {
  padding: 14px 16px;
  text-align: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.free-use__table th {
  color: var(--text-muted);
  font-weight: 600;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.free-use__table tbody tr:hover {
  background: rgba(255, 106, 0, 0.06);
}

.free-use__table td strong {
  color: #ff6a00;
}

.free-use__note {
  margin-top: 20px;
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.7;
}

.free-use__cta {
  margin-top: 24px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.free-use__btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.free-use__btn--primary {
  color: #070a12;
  background: linear-gradient(90deg, #ff6a00, #ff2d55);
  box-shadow: 0 0 16px rgba(255, 106, 0, 0.35);
}

.free-use__btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 24px rgba(255, 106, 0, 0.55);
}

.free-use__btn--ghost {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
}

.free-use__btn--ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}

@media (max-width: 640px) {
  .free-use__table {
    font-size: 13px;
  }
  .free-use__table th,
  .free-use__table td {
    padding: 10px 8px;
  }
}
  .free-use__table th,
  .free-use__table td {
    padding: 10px 8px;
  }
}


/* ---- free.html ---- */
.hero--slim {
  padding: 72px 0 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero--slim .hero__title {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  background: linear-gradient(90deg, #ff6a00, #ff2d55);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 16px;
}

.hero--slim .hero__sub {
  color: var(--text-muted);
  font-size: 1rem;
  max-width: 640px;
  margin: 0 auto;
}

.invite__steps {
  list-style: none;
  padding: 0;
  margin: 32px 0 0;
  display: flex;
  flex-direction: column;
  gap: 20px;
  counter-reset: step;
}

.invite__step {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  padding: 24px;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.invite__step:hover {
  border-color: rgba(255, 106, 0, 0.3);
  transform: translateX(4px);
}

.invite__num {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  font-size: 1.2rem;
  font-weight: 700;
  color: #070a12;
  background: linear-gradient(135deg, #ff6a00, #ff2d55);
  box-shadow: 0 0 14px rgba(255, 106, 0, 0.35);
}

.invite__step h3 {
  color: var(--text);
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.invite__step p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  margin: 0;
}

.invite__step a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.invite__tip {
  margin-top: 32px;
  padding: 24px;
  background: rgba(255, 106, 0, 0.06);
  border: 1px solid rgba(255, 106, 0, 0.18);
  border-radius: 16px;
}

.invite__tip h3 {
  color: var(--text);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.invite__tip p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
  margin: 0;
}

@media (max-width: 640px) {
  .invite__step {
    flex-direction: column;
    gap: 12px;
    padding: 18px;
  }
}

.free-use__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 28px;
}

.free-use__box {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  padding: 28px;
  text-align: center;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.free-use__box:hover {
  border-color: rgba(255, 106, 0, 0.3);
  transform: translateY(-2px);
}

.free-use__box-title {
  color: var(--text);
  font-size: 1.1rem;
  font-weight: 600;
  margin: 0 0 18px;
}

.free-use__steps {
  padding-left: 20px;
  margin: 0;
  display: inline-flex;
  flex-direction: column;
  gap: 12px;
  text-align: left;
}

.free-use__steps li {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.65;
}

.free-use__steps li strong {
  color: #ff6a00;
}

.free-use__steps li a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.free-use__note--tip {
  margin-top: 24px;
  padding: 16px 20px;
  background: rgba(255, 106, 0, 0.06);
  border: 1px solid rgba(255, 106, 0, 0.18);
  border-radius: 12px;
}

@media (max-width: 640px) {
  .free-use__grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .free-use__box {
    padding: 20px;
  }
}


/* ===== Feature Cards ===== */
.features {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.feature-card {
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.10);
  background: rgba(255, 255, 255, 0.03);
  padding: 22px 20px;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.feature-card:hover {
  transform: translateY(-3px);
  border-color: rgba(108, 240, 255, 0.3);
  box-shadow: 0 8px 24px rgba(108, 240, 255, 0.08);
}

.feature-card__icon {
  font-size: 28px;
  margin-bottom: 12px;
  line-height: 1;
}

.feature-card__title {
  margin: 0 0 8px;
  font-size: 16px;
  color: rgba(255, 255, 255, 0.95);
  font-weight: 600;
}

.feature-card__text {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
}

@media (max-width: 768px) {
  .features { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 480px) {
  .features { grid-template-columns: 1fr; }
}


/* ===== Node / Coverage Cards ===== */
.node-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.node-card {
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.10);
  background: rgba(255, 255, 255, 0.03);
  padding: 20px 18px;
  text-align: center;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.node-card:hover {
  transform: translateY(-3px);
  border-color: rgba(108, 240, 255, 0.3);
}

.node-card__flag {
  font-size: 32px;
  margin-bottom: 8px;
  line-height: 1;
}

.node-card__title {
  margin: 0 0 6px;
  font-size: 15px;
  color: rgba(108, 240, 255, 0.92);
  font-weight: 600;
}

.node-card__text {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
}

@media (max-width: 768px) {
  .node-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 480px) {
  .node-grid { grid-template-columns: 1fr; }
}


/* ===== Download Cards ===== */
.download-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.dl-card {
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.10);
  background: rgba(255, 255, 255, 0.03);
  padding: 24px 20px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.dl-card:hover {
  transform: translateY(-3px);
  border-color: rgba(139, 92, 255, 0.35);
  box-shadow: 0 8px 24px rgba(139, 92, 255, 0.10);
}

.dl-card__icon {
  font-size: 36px;
  line-height: 1;
}

.dl-card__title {
  margin: 0;
  font-size: 16px;
  color: rgba(255, 255, 255, 0.95);
  font-weight: 600;
}

.dl-card__text {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
  flex: 1;
}

.btn--sm {
  padding: 8px 16px;
  font-size: 13px;
  border-radius: 8px;
}

@media (max-width: 768px) {
  .download-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 480px) {
  .download-grid { grid-template-columns: 1fr; }
}


/* ===== Download Section (Flat) ===== */
.dl-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin-top: 28px;
}

.dl-platform {
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.02);
  padding: 20px 22px;
  overflow: hidden;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.dl-platform:hover {
  border-color: rgba(108, 240, 255, 0.2);
  transform: translateY(-2px);
}

.dl-platform__title {
  margin: 0 0 14px;
  font-size: 16px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.92);
}

.dl-table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  overflow: hidden;
}

.dl-table thead {
  background: rgba(255, 255, 255, 0.04);
}

.dl-table th {
  padding: 14px 18px;
  text-align: left;
  font-size: 13px;
  font-weight: 600;
  color: rgba(108, 240, 255, 0.9);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.dl-table td {
  padding: 14px 18px;
  font-size: 14px;
  color: var(--text-muted);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.dl-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.03);
}

.dl-table tbody tr:last-child td {
  border-bottom: none;
}

.dl-table td:first-child {
  font-weight: 500;
  color: var(--text);
}

.dl-table td:first-child a {
  color: rgba(108, 240, 255, 0.92);
  text-decoration: none;
  transition: color 0.15s;
}

.dl-table td:first-child a:hover {
  color: #6cf0ff;
  text-decoration: underline;
  text-underline-offset: 3px;
}

@media (max-width: 640px) {
  .dl-tabs { gap: 6px; }
  .dl-tab { padding: 8px 14px; font-size: 13px; }
  .dl-table th, .dl-table td { padding: 10px 12px; font-size: 13px; }
}


/* ===== Hero Node Card ===== */
.node-card {
  background: linear-gradient(135deg, rgba(108, 240, 255, 0.06), rgba(139, 92, 255, 0.06));
  border: 1px solid rgba(108, 240, 255, 0.18);
  border-radius: 16px;
  padding: 16px 18px;
  backdrop-filter: blur(8px);
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
  min-height: 96px;
}

.node-card::before {
  content: '';
  position: absolute;
  top: -20px;
  right: -20px;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(108, 240, 255, 0.12), transparent 70%);
  pointer-events: none;
}

.node-card__header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
}

.node-card__flag {
  font-size: 22px;
  line-height: 1;
}

.node-card__name {
  font-size: 15px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.92);
  flex: 1;
}

.node-card__status {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #35ffb5;
  box-shadow: 0 0 8px rgba(53, 255, 181, 0.6);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.node-card__speed {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 14px;
}

.node-card__speed-value {
  font-size: 32px;
  font-weight: 800;
  color: #6cf0ff;
  line-height: 1;
  letter-spacing: -1px;
}

.node-card__speed-value span {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  margin-left: 2px;
}

.node-card__latency {
  font-size: 13px;
  color: rgba(53, 255, 181, 0.85);
  background: rgba(53, 255, 181, 0.08);
  padding: 3px 8px;
  border-radius: 999px;
}

.node-card__tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.node-tag {
  font-size: 12px;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 4px 10px;
  border-radius: 999px;
  transition: all 0.15s;
}

.node-tag:hover {
  background: rgba(108, 240, 255, 0.08);
  border-color: rgba(108, 240, 255, 0.2);
  color: var(--text);
}


/* ===== Node Scroller ===== */
.node-scroller {
  margin-top: 16px;
  max-height: 340px;
  overflow: hidden;
  position: relative;
  perspective: 900px;
}

.node-scroller::before,
.node-scroller::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  height: 50px;
  z-index: 2;
  pointer-events: none;
}

.node-scroller::before {
  top: 0;
  background: linear-gradient(to bottom, rgba(7, 10, 18, 0.95), transparent);
}

.node-scroller::after {
  bottom: 0;
  background: linear-gradient(to top, rgba(7, 10, 18, 0.95), transparent);
}

.node-track {
  display: flex;
  flex-direction: column;
  gap: 10px;
  transform: rotateY(-3deg) rotateX(1deg);
  transform-style: preserve-3d;
  animation: nodeScroll 30s linear infinite;
  will-change: transform;
}

.node-scroller:hover .node-track {
  animation-play-state: paused;
}

@keyframes nodeScroll {
  0% { transform: translateY(0) rotateY(-3deg) rotateX(1deg); }
  100% { transform: translateY(-50%) rotateY(-3deg) rotateX(1deg); }
}


.hero__note {
  margin-top: 16px;
  padding: 10px 16px;
  font-size: 13px;
  line-height: 1.6;
  color: rgba(255, 180, 100, 0.92);
  background: linear-gradient(90deg, rgba(255, 106, 0, 0.08), rgba(255, 45, 85, 0.06));
  border: 1px solid rgba(255, 106, 0, 0.22);
  border-radius: 10px;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.hero__note::before {
  content: '⚠️';
  font-size: 14px;
  flex-shrink: 0;
  margin-top: 1px;
}