/* ============================================================
   灭天神话_666 个人主页 — 全站样式 v2
   设计方向：柔和纸感 / 明快配色 / 扁平现代
   说明：移除全部冗余规则与 !important 堆叠，统一设计变量
   ============================================================ */

/* ---------- 设计变量 ---------- */
:root {
  /* 亮色 · 柔和纸感 */
  --bg: #f4f6fb;              /* 页面背景 */
  --surface: #ffffff;         /* 卡片 */
  --surface-2: #eef1f8;       /* 次级面板/底 */
  --surface-3: #e4e9f3;       /* hover 底色 */
  --text: #2a3142;            /* 主文字 */
  --text-2: #6c7486;          /* 次级文字 */
  --text-3: #9aa1b1;          /* 弱化文字 */
  --primary: #2563eb;         /* 主色 · 明快蓝 */
  --primary-2: #1d4ed8;       /* 主色深 */
  --primary-soft: rgba(37, 99, 235, 0.10);
  --accent: #22c55e;          /* 点缀 · 草绿 */
  --accent-soft: rgba(34, 197, 94, 0.12);
  --border: #e4e8f1;
  --shadow: 0 1px 2px rgba(20, 30, 55, 0.04), 0 6px 18px rgba(20, 30, 55, 0.06);
  --shadow-lg: 0 10px 30px rgba(20, 30, 55, 0.10);
  --radius: 16px;
  --radius-sm: 10px;
  --navbar-bg: rgba(255, 255, 255, 0.82);
  --navbar-border: rgba(20, 30, 55, 0.07);
  --transition: 0.22s ease;
}

[data-theme="dark"] {
  --bg: #0e1320;
  --surface: #181f2e;
  --surface-2: #1f2737;
  --surface-3: #283247;
  --text: #e8ecf5;
  --text-2: #9aa5ba;
  --text-3: #6d778c;
  --primary: #4f8cff;
  --primary-2: #3b74e6;
  --primary-soft: rgba(79, 140, 255, 0.16);
  --accent: #4ade80;
  --accent-soft: rgba(74, 222, 128, 0.16);
  --border: #28314a;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.30), 0 6px 18px rgba(0, 0, 0, 0.28);
  --shadow-lg: 0 12px 34px rgba(0, 0, 0, 0.45);
  --navbar-bg: rgba(14, 19, 32, 0.82);
  --navbar-border: rgba(255, 255, 255, 0.07);
}

/* ---------- 基础 ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; overflow-y: scroll; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
               "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  touch-action: manipulation;
  transition: background-color var(--transition), color var(--transition);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
img { max-width: 100%; display: block; }
svg { display: inline-block; }

::selection { background: var(--primary); color: #fff; }

/* 滚动条 */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--surface-3); border-radius: 8px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-3); }

/* ---------- 图标通用 ---------- */
.icon { width: 1em; height: 1em; vertical-align: -0.15em; flex-shrink: 0; }

/* 粒子互动背景 */
#particle-bg {
  position: fixed;
  top: 0;
  left: 0;
  z-index: -1;
  pointer-events: none;
}

/* ---------- 导航栏 ---------- */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--navbar-bg);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--navbar-border);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1240px;
  margin: 0 auto;
  padding: 7px 20px;
  gap: 16px;
}

.logo-container { display: flex; align-items: center; gap: 10px; min-width: 0; }

.logo {
  width: 34px; height: 34px;
  border-radius: 10px;
  object-fit: cover;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.12);
}

.site-name {
  font-weight: 700;
  font-size: 1.02rem;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.nav-links { display: flex; align-items: center; gap: 6px; }

.nav-link {
  position: relative;
  padding: 8px 16px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-2);
  transition: color var(--transition), background-color var(--transition);
  white-space: nowrap;
}

.nav-link:hover { color: var(--primary); background: var(--primary-soft); }

.nav-link.active {
  color: #fff;
  background: var(--primary);
  box-shadow: 0 3px 10px rgba(37, 99, 235, 0.30);
}

.mobile-menu-btn {
  display: none;
  width: 38px; height: 38px;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  font-size: 22px;
  cursor: pointer;
  color: var(--text);
  border: 1px solid var(--border);
  background: var(--surface);
  transition: transform var(--transition), background-color var(--transition);
}

.mobile-menu-btn.active { transform: rotate(90deg); background: var(--surface-2); }

@media (max-width: 640px) {
  .mobile-menu-btn { display: flex; }
  .nav-links {
    position: absolute;
    top: calc(100% + 6px);
    right: 12px;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    min-width: 160px;
    padding: 8px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 14px;
    box-shadow: var(--shadow-lg);
    display: none;
  }
  .nav-links.show { display: flex; }
  .nav-link { padding: 10px 14px; }
}

/* ---------- 布局容器 ---------- */
.main-content {
  max-width: 1240px;
  width: 100%;
  margin: 0 auto;
  padding: 12px 20px 16px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  grid-template-rows: auto minmax(0, 1fr);
  gap: 24px;
  flex: 1 1 0;
  min-height: 0;
}
.announcement-banner { grid-column: 1 / -1; grid-row: 1; }
.articles-section { grid-column: 1; grid-row: 2; min-height: 0; }
.sidebar { grid-column: 2; grid-row: 2; min-height: 0; }

/* 主页 hero 头图 */
/* 侧边栏欢迎卡 */
.welcome-card {
  display: flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(120deg, var(--primary-soft), var(--surface));
}
.welcome-avatar {
  width: 38px; height: 38px;
  border-radius: 50%;
  border: 3px solid var(--surface);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
  object-fit: cover;
  flex-shrink: 0;
}
.welcome-card .welcome-text h3 {
  font-size: 0.9rem;
  font-weight: 800;
  margin-bottom: 2px;
  color: var(--text);
  line-height: 1.35;
}
.welcome-card .welcome-text p {
  color: var(--text-2);
  font-size: 0.74rem;
  line-height: 1.55;
  margin: 0;
}
.welcome-card .welcome-text .welcome-role {
  color: var(--primary);
  font-weight: 600;
  font-size: 0.73rem;
  line-height: 1.4;
  margin-top: 3px;
}

@media (max-width: 640px) {
  .hero-card { flex-direction: column; text-align: center; padding: 20px; }
  .hero-avatar { width: 68px; height: 68px; }
}

/* ---------- 文章区 ---------- */
.articles-section {
  flex: 1 1 0;
  min-width: 0;
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.articles-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px 10px;
  border-bottom: 1px solid var(--border);
}
.articles-header h2 {
  font-size: 1.05rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
}
.articles-header h2 .icon { color: var(--primary); }
.articles-count { font-size: 0.8rem; color: var(--text-3); font-weight: 500; }

.articles-container {
  flex: 1;
  min-height: 0;
  max-height: none;
  overflow-y: auto;
  padding: 12px 18px 14px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  scroll-behavior: smooth;
  overscroll-behavior: contain;
  min-width: 0;
}
.articles-container:after {
  content: '';
  position: sticky;
  bottom: -1px;
  height: 24px;
  margin-top: -24px;
  background: linear-gradient(to bottom, transparent, var(--surface));
  pointer-events: none;
  display: block;
}

@media (max-width: 1100px) {
  .articles-container { max-height: none; min-height: 0; }
}

.article {
  position: relative;
  display: flex;
  gap: 14px;
  padding: 11px;
  background: var(--surface-2);
  border: 1px solid transparent;
  border-radius: 14px;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition), background-color var(--transition);
}
.article.even { flex-direction: row; }
.article.odd { flex-direction: row-reverse; }
.article:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border);
  background: var(--surface);
}

.article-image {
  flex: 0 0 190px;
  border-radius: 10px;
  overflow: hidden;
  background: var(--surface-3);
}
.article-image img {
  width: 100%;
  height: 100px;
  object-fit: cover;
  transition: transform 0.35s ease;
}
.article:hover .article-image img { transform: scale(1.04); }

.article-content { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 7px; }
.article-content h3 {
  font-size: 0.98rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--text);
  transition: color var(--transition);
}
.article:hover .article-content h3 { color: var(--primary); }
.article-summary {
  font-size: 0.84rem;
  color: var(--text-2);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.55;
}
.article-meta {
  margin-top: auto;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--text-3);
}
.article-meta .icon { color: var(--primary); }

@media (max-width: 1100px) {
  .article, .article.even, .article.odd { flex-direction: column !important; }
  .article-image { flex: 0 0 auto; }
  .article-image img { height: auto; max-height: 180px; }
}

/* 加载 / 空态 */
.loading, .error {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-2);
  font-size: 0.95rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
.loading-spinner {
  width: 34px; height: 34px;
  border: 3px solid var(--primary-soft);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
.loading-container { text-align: center; padding: 40px 20px; color: var(--text-2); display: flex; flex-direction: column; align-items: center; gap: 12px; }
.empty-placeholder { text-align: center; padding: 50px 20px; color: var(--text-2); display: flex; flex-direction: column; align-items: center; gap: 10px; }
.empty-placeholder .icon { width: 44px; height: 44px; color: var(--text-3); }

@keyframes spin { to { transform: rotate(360deg); } }
@keyframes pulse { 0%, 100% { opacity: 0.55; } 50% { opacity: 1; } }

/* ---------- 侧边栏 ---------- */
.sidebar {
  flex: 0 0 320px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-width: thin;
}

@media (max-width: 1100px) {
  .main-content {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: none;
    gap: 14px;
    flex: none;
    height: auto;
  }
  .articles-section { overflow: visible; grid-column: 1; grid-row: 5; }
  .articles-container { overflow: visible; max-height: none; min-height: 0; }
  .sidebar { display: contents; }
  /* 手机端板块重排：欢迎 → 公告 → 活跃平台 → 友情链接 → 最新文章 → 访问IP */
  .welcome-card { grid-column: 1; grid-row: 1; }
  .announcement-banner { grid-column: 1; grid-row: 2; }
  .platform-section { grid-column: 1; grid-row: 3; }
  .friends-section { grid-column: 1; grid-row: 4; }
  .ip-display { grid-column: 1; grid-row: 6; }
}

.sidebar-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 14px 10px;
  box-shadow: var(--shadow);
}
.sidebar-section .section-title, .sidebar-section h3 {
  font-size: 0.92rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 11px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.sidebar-section .section-title .icon, .sidebar-section h3 .icon { color: var(--primary); }

/* 平台图标 */
.platform-icons {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  row-gap: 14px;
  column-gap: 8px;
  padding: 4px 0;
}
.platform-icon {
  width: 40px; height: 40px;
  margin: 0 auto;
  border-radius: 50%;
  background: var(--surface-2);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition), box-shadow var(--transition), background-color var(--transition);
}
.platform-icon svg { width: 20px; height: 20px; display: block; }
.platform-icon:hover {
  transform: translateY(-4px) scale(1.08);
  box-shadow: var(--shadow-lg);
  background: var(--surface);
}

/* 友链 */
.friends-container {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  justify-items: center;
  gap: 8px;
  padding: 4px 0;
}
.friend-avatar {
  position: relative;
  width: 100%;
  max-width: 42px;
  aspect-ratio: 1;
  border-radius: 50%;
  border: 2px solid var(--primary);
  background: var(--surface-2);
  overflow: hidden;
  flex-shrink: 0;
  transition: transform var(--transition), box-shadow var(--transition);
}
.friend-avatar img { width: 100%; height: 100%; object-fit: cover; }
.friend-avatar:hover {
  transform: translateY(-4px) scale(1.08);
  box-shadow: 0 8px 18px rgba(37, 99, 235, 0.30);
}
.friend-avatar::after {
  content: attr(data-name);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: rgba(20, 28, 45, 0.92);
  color: #fff;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 12px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease 0.3s;
}
.friend-avatar:hover::after { opacity: 1; }

/* 公告 */
/* 公告横幅 */
.announcement-banner {
  width: 100%;
  margin: 0;
  padding: 0;
}
.announcement-banner-inner {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 8px 16px;
  box-shadow: var(--shadow);
}
.announcement-badge {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--primary-soft);
  color: var(--primary);
  font-weight: 800;
  font-size: 0.85rem;
  padding: 5px 10px;
  border-radius: 20px;
}
.announcement-badge .icon { width: 15px; height: 15px; }
.announcement-banner-inner p {
  font-size: 0.83rem;
  color: var(--text-2);
  line-height: 1.5;
  margin: 0;
}

/* 访问IP */
.ip-display { font-size: 0.9rem; }
.ip-display h3 { font-size: 0.92rem; font-weight: 800; margin-bottom: 10px; display: flex; align-items: center; gap: 8px; }
.ip-display h3 .icon { color: var(--primary); }
.info-item {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 7px 10px;
  border-radius: 10px;
  background: var(--surface-2);
  margin-bottom: 6px;
  font-size: 0.85rem;
}
.info-item:last-child { margin-bottom: 0; }
.info-label { display: flex; align-items: center; gap: 7px; color: var(--text-2); font-weight: 600; white-space: nowrap; }
.info-label .icon { color: var(--primary); }
.info-value { color: var(--text); text-align: right; word-break: break-all; }
.api-status { display: flex; align-items: center; gap: 6px; font-size: 0.76rem; color: var(--text-3); padding: 2px 4px; }
.status-indicator { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.status-active { background: var(--accent); }
.status-inactive { background: #ef4444; }

/* ---------- 按钮 ---------- */
.btn, .join-btn, .download-btn, .go-btn, .redirect-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border: none;
  border-radius: 12px;
  background: var(--primary);
  color: #fff;
  font-weight: 700;
  font-size: 0.92rem;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.28);
  transition: transform var(--transition), box-shadow var(--transition), background-color var(--transition);
  text-align: center;
}
.btn:hover, .join-btn:hover, .download-btn:hover, .go-btn:hover, .redirect-btn:hover {
  background: var(--primary-2);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.35);
}
.btn:active, .join-btn:active, .download-btn:active, .go-btn:active, .redirect-btn:active { transform: translateY(0); }

.download-btn, .go-btn { width: 100%; margin-top: auto; box-sizing: border-box; }

/* ---------- 联系页 ---------- */
.contact-content {
  max-width: 1240px;
  width: 100%;
  margin: 0 auto;
  padding: 24px 20px 40px;
  flex: 1 0 auto;
}
.contact-header { text-align: center; margin-bottom: 26px; }
.contact-header h1 { font-size: 1.8rem; font-weight: 800; color: var(--text); }
.contact-header p { color: var(--text-2); margin-top: 6px; font-size: 0.95rem; }
.contact-container { display: flex; gap: 28px; align-items: stretch; }

.contact-info {
  flex: 1;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 30px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}
.avatar-container { margin-bottom: 18px; }
.avatar {
  width: 110px; height: 110px;
  border-radius: 22px;
  border: 3px solid var(--primary);
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.25);
  object-fit: cover;
  margin: 0 auto;
}
.info-text h2 { font-size: 1.45rem; font-weight: 800; margin-bottom: 8px; color: var(--text); }
.info-content {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 16px;
  padding: 18px;
  background: var(--surface-2);
  border-radius: 12px;
  font-size: 0.94rem;
  color: var(--text-2);
  line-height: 1.7;
  text-align: center;
}

.contact-groups {
  flex: 2;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.group-section { display: flex; gap: 18px; }
.channel-section { display: flex; gap: 18px; }

.group-card, .channel-card {
  flex: 1;
  min-height: 260px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  text-align: center;
  transition: transform var(--transition), box-shadow var(--transition);
}
.group-card:hover, .channel-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.group-qr {
  width: 160px; height: 160px;
  object-fit: contain;
  margin: 8px auto;
  border-radius: 10px;
  background: var(--surface-2);
  padding: 8px;
}
.group-name, .channel-name { font-size: 1.05rem; font-weight: 700; color: var(--text); }
.group-desc { font-size: 0.85rem; color: var(--text-2); }
.channel-icon { width: 64px; height: 64px; margin: 10px auto; }
.join-btn { width: 100%; margin-top: 12px; }

@media (max-width: 800px) {
  .contact-container, .group-section, .channel-section { flex-direction: column; }
  .group-card, .channel-card { min-height: auto; }
}

/* ---------- 下载页 ---------- */
.download-content {
  max-width: 1240px;
  width: 100%;
  margin: 0 auto;
  padding: 24px 20px 100px;
  flex: 1 0 auto;
}
.download-section { margin-bottom: 40px; }
.section-title {
  text-align: center;
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 22px;
  position: relative;
  padding-bottom: 12px;
}
.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 56px;
  height: 4px;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
}

.download-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 18px;
}
.download-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px 18px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 8px;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.download-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--primary); }

.item-icon {
  width: 56px; height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 40px;
  border-radius: 14px;
  background: var(--primary-soft);
  padding: 8px;
}
.item-icon img { width: 40px; height: 40px; object-fit: contain; }
.item-icon.emoji { background: var(--accent-soft); }

.download-item h3 { font-size: 0.98rem; font-weight: 700; color: var(--text); }
.download-item .version, .download-item .os-support, .download-item .desc {
  font-size: 0.8rem;
  color: var(--text-2);
  line-height: 1.5;
}
.os-support { display: flex; align-items: center; gap: 8px; }
.os-support .icon { width: 15px; height: 15px; color: var(--text-2); }
.os-support svg { fill: currentColor; }

/* 版本链接（自动适配按钮数量） */
.version-container, .version-container-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(64px, 1fr));
  gap: 8px;
  width: 100%;
  margin-top: 4px;
}
.version-link {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 4px 10px;
  border-radius: 9px;
  background: var(--primary);
  color: #fff !important;
  font-size: 0.82rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  box-shadow: 0 2px 6px rgba(37, 99, 235, 0.22);
  transition: transform var(--transition), box-shadow var(--transition), background-color var(--transition);
}
.version-link:hover { background: var(--primary-2); transform: translateY(-2px); box-shadow: 0 6px 14px rgba(37, 99, 235, 0.30); }

/* ---------- 音乐播放器 ---------- */
.music-player {
  position: fixed;
  left: 20px;
  bottom: 20px;
  z-index: 999;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
}
.music-player:hover { transform: scale(1.1); box-shadow: 0 10px 26px rgba(37, 99, 235, 0.30); }
.music-player.playing { box-shadow: 0 0 18px rgba(37, 99, 235, 0.55), var(--shadow-lg); }
.record { width: 30px; height: 30px; animation: spin 4s linear infinite; }
.record.paused { animation-play-state: paused; }
.record path { fill: var(--primary); }

.music-particles { pointer-events: none; z-index: 998; }

/* ---------- 浮动按钮 ---------- */
.floating-btns-home, .floating-btns-download, .floating-btns-contact {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 998;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.floating-btn {
  width: 46px; height: 46px;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), color var(--transition), background-color var(--transition);
}
.floating-btn .icon { width: 18px; height: 18px; }
.floating-btn:hover { transform: translateY(-3px) scale(1.06); box-shadow: var(--shadow-lg); color: var(--primary); }

.rocket-btn { display: none; }

@media (max-width: 640px) {
  body { -webkit-touch-callout: none; }
  .music-player { left: 14px; bottom: 14px; width: 40px; height: 40px; }
  .floating-btns-home, .floating-btns-download, .floating-btns-contact { right: 14px; bottom: 14px; gap: 10px; }
  .floating-btn { width: 42px; height: 42px; }
  .announcement-banner-inner { flex-direction: column; align-items: flex-start; gap: 8px; }
}

/* ---------- 微信气泡 ---------- */
.wechat-bubble {
  position: fixed;
  right: 18px;
  bottom: 82px;
  width: 250px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
  z-index: 1001;
}
.wechat-bubble.show { opacity: 1; visibility: visible; transform: translateY(0); }
.wechat-bubble::after {
  content: '';
  position: absolute;
  bottom: -10px;
  right: 12px;
  border-left: 12px solid transparent;
  border-right: 12px solid transparent;
  border-top: 12px solid var(--surface);
}
.qrcode-container {
  background: var(--surface-2);
  border-radius: 12px;
  padding: 12px;
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 12px;
}
.qrcode-placeholder { width: 200px; height: 200px; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.qrcode-placeholder img { max-width: 100%; max-height: 100%; object-fit: contain; }
.bubble-footer {
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-2);
  padding: 10px;
  background: var(--surface-2);
  border-radius: 10px;
}

/* ---------- 移动端跳转 ---------- */
.mobile-redirect {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(10, 15, 30, 0.82);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}
.mobile-redirect.show { display: flex; opacity: 1; visibility: visible; }
.redirect-content {
  background: var(--surface);
  border-radius: 20px;
  padding: 34px 30px;
  text-align: center;
  max-width: 92%;
  width: 380px;
  box-shadow: var(--shadow-lg);
}
.redirect-content .icon { width: 52px; height: 52px; color: var(--accent); margin: 0 auto 16px; }
.redirect-content h2 { font-size: 1.3rem; font-weight: 800; margin-bottom: 12px; }
.redirect-content p { color: var(--text-2); margin-bottom: 22px; line-height: 1.7; font-size: 0.92rem; }
.redirect-btn { width: 100%; }

/* ---------- 页脚 ---------- */
.site-footer {
  text-align: center;
  padding: 10px 20px 18px;
  color: var(--text-3);
  font-size: 0.8rem;
  flex-shrink: 0;
}
.site-footer a { color: var(--text-2); }
.site-footer a:hover { color: var(--primary); }

/* ---------- 404 ---------- */
.notfound {
  flex: 1 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 40px 20px 120px;
}
.notfound img {
  width: min(520px, 88vw);
  border-radius: 18px;
  box-shadow: var(--shadow-lg);
  margin-bottom: 26px;
}
.notfound h1 { font-size: 2rem; font-weight: 800; margin-bottom: 8px; }
.notfound p { color: var(--text-2); margin-bottom: 26px; max-width: 420px; }
.notfound .btn { padding: 12px 28px; }

/* ---------- 打印等杂项 ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}