/* ============================================================
   STCraft 服务器官网样式
   深色 Minecraft 像素风主题
   ============================================================ */

:root {
  --bg: #0d1117;
  --bg-alt: #0f1520;
  --card: #141b26;
  --card-hover: #1a2331;
  --border: #263140;
  --text: #e6edf3;
  --muted: #8b98a8;
  --green: #52c14a;
  --green-dark: #2f7a2b;
  --green-darker: #235c20;
  --gold: #f5c542;
  --red: #e5534b;
  --radius: 12px;
  --font-pixel: "Press Start 2P", "Courier New", monospace;
  --font-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
    "Noto Sans SC", system-ui, -apple-system, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
}

a {
  color: var(--green);
  text-decoration: none;
}

code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 2px 8px;
  font-size: 0.92em;
  color: #ffd866;
}

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

.container-narrow {
  max-width: 820px;
}

/* ============ 导航栏 ============ */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(13, 17, 23, 0.86);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s, background 0.25s;
}

.nav.scrolled {
  border-bottom-color: var(--border);
  background: rgba(13, 17, 23, 0.96);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-family: var(--font-pixel);
  font-size: 15px;
  letter-spacing: 1px;
}

.brand-icon {
  image-rendering: pixelated;
}

.nav-links {
  display: flex;
  gap: 28px;
}

.nav-links a {
  color: var(--muted);
  font-size: 15px;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--text);
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 20px;
  padding: 4px 12px;
  cursor: pointer;
}

/* ============ 首屏 ============ */

.hero {
  position: relative;
  padding: 170px 0 110px;
  overflow: hidden;
  text-align: center;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 50% -10%, rgba(82, 193, 74, 0.16), transparent),
    radial-gradient(ellipse 40% 40% at 85% 20%, rgba(245, 197, 66, 0.07), transparent),
    linear-gradient(var(--bg), var(--bg-alt));
}

.hero-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.028) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.9), transparent 85%);
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.9), transparent 85%);
}

.hero-inner {
  position: relative;
}

.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(82, 193, 74, 0.08);
  color: var(--green);
  font-size: 13px;
  letter-spacing: 1px;
  margin-bottom: 28px;
}

.hero-title {
  font-family: var(--font-pixel);
  font-size: clamp(34px, 7vw, 64px);
  letter-spacing: 4px;
  background: linear-gradient(180deg, #a8e89a 0%, var(--green) 55%, var(--green-dark) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  text-shadow: 0 6px 24px rgba(82, 193, 74, 0.25);
  margin-bottom: 22px;
}

.hero-slogan {
  color: var(--muted);
  font-size: 17px;
  max-width: 560px;
  margin: 0 auto 36px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 34px;
}

/* ============ 按钮 ============ */

.btn {
  display: inline-block;
  padding: 13px 28px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  font-family: var(--font-body);
  transition: transform 0.12s, box-shadow 0.12s, background 0.2s;
}

.btn-primary {
  background: linear-gradient(180deg, #63cf5a, var(--green-dark));
  color: #07130a;
  box-shadow: 0 4px 0 var(--green-darker), 0 8px 24px rgba(82, 193, 74, 0.25);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 5px 0 var(--green-darker), 0 10px 28px rgba(82, 193, 74, 0.35);
}

.btn-primary:active {
  transform: translateY(3px);
  box-shadow: 0 1px 0 var(--green-darker);
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  box-shadow: 0 4px 0 rgba(255, 255, 255, 0.06);
}

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

.btn-ghost:active {
  transform: translateY(3px);
  box-shadow: none;
}

/* ============ 地址框 ============ */

.address-box {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 12px 20px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color 0.2s;
  user-select: none;
}

.address-box:hover {
  border-color: var(--green);
}

.address-label {
  color: var(--muted);
  font-size: 13px;
}

.address-box code {
  background: none;
  border: none;
  padding: 0;
  font-size: 16px;
  color: #ffd866;
}

.hero-contact {
  margin-top: 22px;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.contact-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(82, 193, 74, 0.08);
  color: var(--text);
  font-size: 14px;
  transition: border-color 0.2s, background 0.2s;
}

.contact-chip:hover {
  border-color: var(--green);
  background: rgba(82, 193, 74, 0.16);
}

.qq-number {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 14px;
}

.qq-number code {
  font-size: 14px;
}

/* ============ 状态栏 ============ */

.status {
  padding: 26px 0 54px;
  background: var(--bg-alt);
}

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

.status-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

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

.status-value {
  font-size: 18px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--muted);
  flex: none;
}

.dot.online {
  background: var(--green);
  box-shadow: 0 0 0 0 rgba(82, 193, 74, 0.6);
  animation: pulse 2s infinite;
}

.dot.offline {
  background: var(--red);
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(82, 193, 74, 0.55); }
  70% { box-shadow: 0 0 0 9px rgba(82, 193, 74, 0); }
  100% { box-shadow: 0 0 0 0 rgba(82, 193, 74, 0); }
}

.status-note {
  margin-top: 14px;
  text-align: center;
  color: var(--muted);
  font-size: 12px;
}

/* ============ 通用 Section ============ */

.section {
  padding: 88px 0;
}

.section-alt {
  background: var(--bg-alt);
}

.section-title {
  font-size: 30px;
  text-align: center;
  letter-spacing: 2px;
}

.section-title::after {
  content: "";
  display: block;
  width: 48px;
  height: 4px;
  margin: 14px auto 0;
  background: var(--green);
  border-radius: 2px;
  image-rendering: pixelated;
}

.section-subtitle {
  text-align: center;
  color: var(--muted);
  margin-top: 12px;
  margin-bottom: 44px;
}

/* ============ 卡片网格 ============ */

.grid {
  display: grid;
  gap: 18px;
}

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

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px 22px;
  transition: transform 0.2s, border-color 0.2s, background 0.2s;
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(82, 193, 74, 0.5);
  background: var(--card-hover);
}

.card-sm {
  padding: 22px 18px;
}

.card-icon {
  font-size: 30px;
  margin-bottom: 14px;
}

.card h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.card p {
  color: var(--muted);
  font-size: 14px;
}

/* ============ 加入指南 ============ */

.steps {
  display: flex;
  flex-direction: column;
  gap: 18px;
  max-width: 760px;
  margin: 0 auto;
}

.step {
  display: flex;
  gap: 20px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.step-num {
  flex: none;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-pixel);
  font-size: 16px;
  color: #07130a;
  background: linear-gradient(180deg, #63cf5a, var(--green-dark));
  border-radius: 10px;
  box-shadow: 0 3px 0 var(--green-darker);
}

.step-body {
  flex: 1;
}

.step-body h3 {
  font-size: 17px;
  margin-bottom: 6px;
}

.step-body p {
  color: var(--muted);
  font-size: 14px;
}

.code-line {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 10px;
}

.code-line code {
  flex: 1;
  padding: 8px 12px;
}

.btn-copy {
  flex: none;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--muted);
  font-size: 13px;
  padding: 7px 14px;
  cursor: pointer;
  font-family: var(--font-body);
  transition: color 0.2s, border-color 0.2s;
}

.btn-copy:hover {
  color: var(--text);
  border-color: var(--green);
}

.btn-copy.copied {
  color: var(--green);
  border-color: var(--green);
}

.tips {
  max-width: 760px;
  margin: 30px auto 0;
  background: rgba(245, 197, 66, 0.06);
  border: 1px solid rgba(245, 197, 66, 0.25);
  border-radius: var(--radius);
  padding: 22px 26px;
}

.tips h3 {
  font-size: 16px;
  margin-bottom: 10px;
  color: var(--gold);
}

.tips li {
  color: var(--muted);
  font-size: 14px;
  margin-left: 20px;
  margin-top: 4px;
}

/* ============ 规则 ============ */

.rules-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.rule {
  display: flex;
  gap: 18px;
  align-items: baseline;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 22px;
  font-size: 15px;
}

.rule-no {
  font-family: var(--font-pixel);
  font-size: 13px;
  color: var(--green);
  flex: none;
}

/* ============ FAQ ============ */

.faq-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
}

.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 18px 22px;
  font-weight: 600;
  font-size: 15px;
  position: relative;
  padding-right: 52px;
  user-select: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 22px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--green);
  font-size: 20px;
  transition: transform 0.2s;
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-item p {
  padding: 0 22px 18px;
  color: var(--muted);
  font-size: 14px;
}

/* ============ 页脚 ============ */

.footer {
  border-top: 1px solid var(--border);
  padding: 44px 0;
  background: var(--bg-alt);
  text-align: center;
}

.footer-team {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  margin-bottom: 24px;
}

.footer-team-label {
  color: var(--muted);
  font-size: 13px;
  letter-spacing: 2px;
}

.team-avatars {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: center;
}

.team-member {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.team-member img {
  width: 48px;
  height: 48px;
  border-radius: 8px;
  border: 2px solid var(--border);
  image-rendering: pixelated;
  background: var(--card);
}

.team-member span {
  font-size: 12px;
  color: var(--muted);
}

.footer-meta p {
  color: var(--muted);
  font-size: 14px;
}

.footer-note {
  font-size: 12px !important;
  opacity: 0.7;
  margin-top: 6px;
}

/* ============ Toast 提示 ============ */

.toast {
  position: fixed;
  bottom: 34px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--card);
  border: 1px solid var(--green);
  color: var(--text);
  padding: 12px 24px;
  border-radius: 10px;
  font-size: 14px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s, transform 0.25s;
  z-index: 200;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ============ 响应式 ============ */

@media (max-width: 960px) {
  .grid-4 {
    grid-template-columns: repeat(3, 1fr);
  }
  .status-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 860px) {
  .nav-toggle {
    display: block;
  }
  .nav-links {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: rgba(13, 17, 23, 0.98);
    border-bottom: 1px solid var(--border);
    padding: 8px 0;
    display: none;
  }
  .nav-links.open {
    display: flex;
  }
  .nav-links a {
    padding: 14px 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
  }
}

@media (max-width: 720px) {
  .grid-3,
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .hero {
    padding: 130px 0 80px;
  }
  .section {
    padding: 64px 0;
  }
  .step {
    flex-direction: column;
    gap: 14px;
  }
}

@media (max-width: 480px) {
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
  .status-grid {
    grid-template-columns: 1fr;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .address-box {
    flex-direction: column;
    gap: 4px;
  }
}