:root {
  --color-bg: #1a1a1a;
  --color-text: #1d1d1f;
  --color-text-soft: #6e6e73;
  --color-surface: #ffffff;
  --color-border: #e5e5ea;
  --color-accent: #2d7d46;
  --radius-card: 24px;
  --radius-pill: 999px;
  --shadow-card: 0 12px 40px rgba(0, 0, 0, 0.08);
  --shadow-overlay: 0 8px 32px rgba(0, 0, 0, 0.06);
  --header-height: 64px;
  --content-max: 1280px;
  --gap: 24px;
  --transition: 0.25s ease;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html,
body {
  height: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

/* ==================== 动态模糊背景 ==================== */
.bg-blur {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  background-color: var(--color-bg);
  pointer-events: none;
}

.bg-blur__layer {
  position: absolute;
  inset: -10%;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  filter: blur(72px) saturate(1.3) brightness(0.85);
  opacity: 0;
  transition: opacity 0.8s ease;
  transform: scale(1.1);
}

.bg-blur__layer.is-active {
  opacity: 1;
}

/* ==================== Header ==================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  height: var(--header-height);
  padding: 0 32px;
  background-color: rgba(255, 255, 255, 0.5);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid rgba(229, 229, 234, 0.6);
}

.site-header__left {
  justify-self: start;
  display: flex;
  align-items: center;
  gap: 12px;
}

.site-header__avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  object-fit: cover;
  background-color: var(--color-border);
  flex-shrink: 0;
}

.site-header__title {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.2px;
}

.site-header__nav {
  justify-self: center;
  display: flex;
  align-items: center;
  gap: 8px;
}

.site-header__nav-link {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-soft);
  transition: background-color var(--transition), color var(--transition);
}

.site-header__nav-link:hover {
  background-color: rgba(0, 0, 0, 0.05);
  color: var(--color-text);
}

.site-header__nav-link--active {
  color: var(--color-text);
  background-color: rgba(45, 125, 70, 0.12);
}

.site-header__right {
  justify-self: end;
  display: flex;
  align-items: center;
  min-width: 36px;
}

/* ==================== Main ==================== */
.main {
  position: relative;
  z-index: 1;
  padding: 32px 16px 64px;
}

.waterfall {
  display: flex;
  flex-direction: column;
  gap: var(--gap);
  max-width: var(--content-max);
  margin: 0 auto;
}

/* ==================== Card ==================== */
.card {
  position: relative;
  width: 100%;
  border-radius: var(--radius-card);
  overflow: hidden;
  background-color: var(--color-border);
  box-shadow: var(--shadow-card);
}

.card__image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

/* 蒙版统一规格：垂直居中、宽 42%、最大 520px */
.card__overlay {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 42%;
  max-width: 520px;
  background-color: rgba(255, 255, 255, 0.92);
  border-radius: 20px;
  box-shadow: var(--shadow-overlay);
  padding: 28px 32px;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

/* 右侧蒙版 */
.card--right .card__overlay {
  right: 5%;
}

/* 左侧蒙版 */
.card--left .card__overlay {
  left: 5%;
}

.overlay__eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.overlay__title {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 12px;
}

.overlay__text {
  font-size: 15px;
  color: var(--color-text-soft);
  margin-bottom: 16px;
}

.overlay__cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  border-radius: var(--radius-pill);
  background-color: var(--color-accent);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  transition: transform var(--transition), box-shadow var(--transition);
}

.overlay__cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(45, 125, 70, 0.35);
}

/* ==================== Responsive ==================== */
@media (max-width: 768px) {
  .site-header {
    padding: 0 16px;
  }
  .site-header__title {
    display: none;
  }
  .site-header__nav-link {
    padding: 8px 10px;
    font-size: 13px;
  }
  .card--right .card__overlay,
  .card--left .card__overlay {
    position: static;
    transform: none;
    width: auto;
    max-width: none;
    margin: 12px;
  }
  .overlay__title {
    font-size: 22px;
  }
}

/* ==================== Join 页面 ==================== */
.join-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  pointer-events: none;
}

.join-main {
  position: relative;
  z-index: 1;
  padding: 32px 16px 64px;
}

.join-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap);
  max-width: var(--content-max);
  margin: 0 auto;
}

.join-card {
  background-color: rgba(255, 255, 255, 0.8);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  padding: 32px;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.join-card--full {
  grid-column: 1 / -1;
}

.join-card__eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.join-card__title {
  font-size: 26px;
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 12px;
}

.join-card__text {
  font-size: 15px;
  color: var(--color-text-soft);
  margin-bottom: 16px;
}

.join-card__text--hint {
  margin-top: 16px;
  font-size: 13px;
  opacity: 0.8;
}

.info-list {
  margin: 8px 0 0;
}

.info-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 10px 0;
  border-top: 1px solid rgba(229, 229, 234, 0.7);
  gap: 16px;
}

.info-row__label {
  font-size: 14px;
  color: var(--color-text-soft);
  flex-shrink: 0;
}

.info-row__value {
  font-size: 14px;
  font-weight: 500;
  text-align: right;
}

.info-row__value--code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 13px;
  background-color: rgba(45, 125, 70, 0.08);
  padding: 2px 8px;
  border-radius: 6px;
}

.step-list {
  margin: 16px 0 0;
  padding-left: 20px;
}

.step-list li {
  font-size: 14px;
  color: var(--color-text-soft);
  margin-bottom: 8px;
}

.status-row {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--color-accent);
  box-shadow: 0 0 0 4px rgba(45, 125, 70, 0.15);
}

.status-row__text {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
}

.status-dot--loading {
  background-color: #b0b0b5;
  box-shadow: 0 0 0 4px rgba(0, 0, 0, 0.06);
  animation: status-pulse 1s ease-in-out infinite;
}

.status-dot--offline {
  background-color: #d33;
  box-shadow: 0 0 0 4px rgba(221, 51, 51, 0.15);
}

@keyframes status-pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.4;
  }
}

.status-motd {
  margin: 12px 0 0;
  padding: 12px;
  background-color: rgba(0, 0, 0, 0.04);
  border-radius: 12px;
  font-size: 13px;
  white-space: pre-wrap;
  color: var(--color-text);
}

.status-players {
  margin: 12px 0 0;
  font-size: 13px;
  color: var(--color-text-soft);
  line-height: 1.8;
}

@media (max-width: 768px) {
  .join-grid {
    grid-template-columns: 1fr;
  }
  .join-card__title {
    font-size: 22px;
  }
}