/* ========== 基础变量 & 液态玻璃 ========== */
:root {
  --text: #ffffff;
  --text-dim: rgba(255,255,255,0.72);
  --glass-bg: transparent;
  --glass-border: rgba(255,255,255,0.5);
  --glass-shadow: -4px -4px 16px rgba(144,224,170,0.15), 4px 4px 16px rgba(0,0,0,0.07), inset 2px 2px 6px rgba(255,255,255,0.6);
  --accent: #3a8a55;
  --accent-hover: #2d6a41;
  --body-bg: linear-gradient(160deg, #e0f2e9 0%, #c8e6d0 40%, #a5d6b8 100%);
}
[data-theme="dark"] {
  --text: #eaf6ef;
  --text-dim: rgba(234,246,239,0.6);
  --glass-bg: rgba(255,255,255,0.08);
  --glass-border: rgba(255,255,255,0.18);
  --glass-shadow: -6px -6px 20px rgba(64,192,128,0.2), 6px 6px 20px rgba(0,0,0,0.3), inset 2px 2px 6px rgba(255,255,255,0.25);
  --accent: #5fd68f;
  --accent-hover: #4bc97a;
  --body-bg: linear-gradient(160deg, #0d1f17 0%, #12301f 45%, #1a3d2b 100%);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--body-bg);
  background-attachment: fixed;
  color: var(--text);
  min-height: 100vh;
  transition: color 0.5s;
  -webkit-font-smoothing: antialiased;
}
:root {
  --bg-overlay: rgba(0, 0, 0, 0.15);
}
[data-theme="dark"] {
  --bg-overlay: rgba(13, 31, 23, 0.45);
}
body::before {
  content: "";
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background-position: center center;
  background-size: cover;
  background-repeat: no-repeat;
  background-image: var(--bg-image, none);
  opacity: var(--bg-opacity, 0);
  transition: background-image 1.2s ease-in-out, opacity 1.2s ease-in-out;
}
body::after {
  content: "";
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background: var(--bg-overlay);
  transition: background 0.6s;
}

.liquid-glass {
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow); border-radius: 28px;
  transition: transform 0.35s, box-shadow 0.35s, background 0.4s;
}
.liquid-glass:hover { transform: translateY(-3px); }
.wrap { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

.theme-switch {
  position: fixed; top: 18px; right: 18px; z-index: 200; cursor: pointer;
  padding: 10px 18px; border-radius: 22px; background: var(--glass-bg);
  border: 1px solid var(--glass-border); box-shadow: var(--glass-shadow);
  font-size: 15px; font-weight: 500; color: var(--text); backdrop-filter: blur(10px); transition: all 0.3s; user-select: none;
}
.theme-switch:hover { transform: scale(1.05); }

.topbar {
  position: sticky; top: 0; z-index: 99; display: flex; justify-content: center; gap: 12px;
  padding: 14px 0; margin-bottom: 32px; background: var(--glass-bg);
  backdrop-filter: blur(16px); border-bottom: 1px solid var(--glass-border);
}
.nav-tab {
  padding: 10px 26px; border-radius: 22px; cursor: pointer;
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  font-size: 15px; font-weight: 500; color: var(--text); transition: all 0.3s; user-select: none;
}
.nav-tab:hover, .nav-tab.active { background: var(--accent); color: #fff; border-color: var(--accent); }

.page { display: none; animation: fadeIn 0.45s ease; }
.page.active { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }

header.hero { text-align: center; padding: 52px 28px 44px; border-radius: 38px; margin-bottom: 40px; }
.hero .icon {
  width: 104px; height: 104px; border-radius: 26px; margin: 0 auto 20px;
  background: var(--accent); display: flex; align-items: center; justify-content: center;
  font-size: 54px; overflow: hidden;
}
.hero .icon img { width: 100%; height: 100%; object-fit: cover; }
.hero p.sub { margin-top: 8px; font-size: 18px; color: var(--text-dim); }
.addr-tag {
  display: inline-block; margin-top: 18px; padding: 10px 24px; border-radius: 24px;
  cursor: pointer; user-select: all; background: var(--glass-bg); border: 1px solid var(--glass-border);
  font-family: monospace; font-size: 16px; color: var(--text); transition: 0.25s;
}
.addr-tag:hover { transform: translateY(-2px); }

.sec-title {
  font-size: 27px;
  font-weight: 700;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
  text-align: left !important;
  justify-content: flex-start !important;
  margin-right: auto !important;
}
.sec-title::before { content: ""; width: 6px; height: 26px; border-radius: 4px; background: linear-gradient(180deg, #5fd68f, #3a8a55); }

.card { padding: 28px; margin-bottom: 24px; }
.intro { line-height: 2; font-size: 16px; padding: 32px 36px; }

.rules-list { list-style: none; padding: 0; }
.rules-list li {
  position: relative; padding: 10px 0 10px 28px; font-size: 15px; line-height: 1.6;
}
.rules-list li::before {
  content: "•"; position: absolute; left: 8px; color: var(--accent); font-size: 20px; line-height: 1.4;
}

.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px,1fr)); gap: 14px; margin-bottom: 16px; }
.stat-item { padding: 16px; border-radius: 20px; }
.stat-item .label { font-size: 13px; color: var(--text-dim); margin-bottom: 6px; }
.stat-item .value { font-size: 17px; font-weight: 600; }
.value.on { color: #22c55e; } .value.off { color: #ef4444; }
.motd { padding: 16px; border-radius: 20px; font-size: 15px; white-space: pre-wrap; margin-bottom: 12px; }
.players-list { padding: 16px; border-radius: 20px; font-size: 15px; margin-bottom: 12px; }

.time-tabs { display: flex; gap: 10px; margin-bottom: 20px; flex-wrap: wrap; }
.time-tab { padding: 7px 18px; border-radius: 18px; cursor: pointer; background: var(--glass-bg); border: 1px solid var(--glass-border); font-size: 14px; color: var(--text); transition: 0.25s; }
.time-tab.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.chart-card { padding: 24px; margin-bottom: 24px; }
.chart-title { font-size: 16px; font-weight: 600; margin-bottom: 12px; display: flex; justify-content: space-between; }
.chart-wrapper { position: relative; height: 250px; }
.chart-wrapper canvas { width: 100% !important; height: 100% !important; }

footer { border-radius: 38px 38px 0 0; padding: 40px 28px 28px; margin-top: 40px; background: var(--glass-bg); border-top: 1px solid var(--glass-border); }
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px,1fr)); gap: 18px; margin-bottom: 24px; }
.footer-item { padding: 18px; border-radius: 20px; }
.footer-item h4 { font-size: 15px; margin-bottom: 8px; color: var(--accent); }
.footer-item p, .footer-item a { font-size: 14px; color: var(--text); text-decoration: none; }
.copy { text-align: center; color: var(--text-dim); font-size: 13px; }

@media (max-width: 720px) {
  .wrap { padding: 0 14px; }
  .topbar { padding: 10px 0; padding-right: 74px; }
  .nav-tab { padding: 7px 14px; font-size: 13px; }
  .theme-switch { top: 10px; right: 10px; padding: 7px 12px; font-size: 13px; }
  header.hero { border-radius: 28px; padding: 36px 18px 28px; }
  .chart-wrapper { height: 200px; }
}

/* ===== 背景加载指示器 ===== */
#bg-loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
  transition: opacity 0.6s ease;
  pointer-events: none;
}
#bg-loader.hidden { opacity: 0; pointer-events: none; }
#bg-loader .loader-logo {
  width: 84px; height: 84px; border-radius: 50%;
  object-fit: cover;
  margin-bottom: 20px;
  box-shadow: 0 0 24px rgba(95, 214, 143, 0.55);
  background: rgba(255,255,255,0.08);
}
#bg-loader .loader-text {
  font-size: 18px;
  color: #fff;
  margin-bottom: 16px;
  letter-spacing: 1px;
}
#bg-loader .progress-bar-bg {
  width: 260px;
  height: 8px;
  background: rgba(255,255,255,0.2);
  border-radius: 4px;
  overflow: hidden;
}
#bg-loader .progress-bar-fill {
  height: 100%;
  width: 0%;
  background: #2196F3;
  border-radius: 4px;
  transition: width 0.3s ease;
}

/* ===== 进入画面（自定义照片 + ✨ 粒子） ===== */
#intro-splash {
  position: fixed;
  inset: 0;
  z-index: 9998;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--body-bg);
  background-attachment: fixed;
  overflow: hidden;
  pointer-events: none;
  opacity: 0;                    /* 默认完全透明，避免一进网页就显示照片 */
  visibility: hidden;            /* 隐藏期不参与点击、也不占位遮挡 */
  transition: opacity 2s ease;
}
#intro-splash.visible { visibility: visible; opacity: 1; }   /* 加载动画结束后才变为可见 */
#intro-splash.fading { opacity: 0; }                         /* 2 秒内降到 0 */
#intro-splash.gone { display: none; }                        /* 彻底释放，完全不影响页面 */
#intro-splash img {
  max-width: min(70vw, 460px);
  max-height: 70vh;
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: 24px;
  box-shadow: 0 12px 48px rgba(0,0,0,0.35);
}
#intro-particles { position: absolute; inset: 0; width: 100%; height: 100%; }
#intro-splash.fading { transition: opacity 2s ease; opacity: 0; }
#intro-splash.gone { display: none; }

/* ===== Bug/反馈 按钮 ===== */
.sec-title { justify-content: space-between; }
.bug-btn {
  background: transparent !important;
  box-shadow: none !important;
  color: var(--accent);
  margin-left: auto !important;
  align-self: center;
  font-size: 18px !important;
}
.bug-btn:hover { background: var(--accent-hover); border-color: var(--accent-hover); transform: translateY(-2px); }

/* ===== 访客信息卡片 ===== */
.visitor-card { margin-bottom: 24px; }
.visitor-card .v-line { font-size: 15px; line-height: 2.1; }
.visitor-card .v-label { color: var(--text-dim); }