/*
 * 站点全局配色与 Bootstrap 变量覆盖（需在 bootstrap.min.css 之后加载）。
 * PHPDisk 官网风格参考：https://www.phpdisk.com/（深蓝主色、亮蓝高光、橙色点缀）
 */
:root {
  --bs-primary: #1e6fd9;
  --bs-primary-rgb: 30, 111, 217;
  --bs-link-color: #1e6fd9;
  --bs-link-hover-color: #1557ae;

  --primary-color: #1e6fd9;
  --primary-dark: #1557ae;
  --primary-light: #38bdf8;
  --secondary-color: #64748b;
  --accent-color: #ea580c;
  --dark-bg: #081428;
  --light-bg: #f0f4fa;
  --gradient-start: #0c1e3a;
  --gradient-mid: #174a94;
  --gradient-end: #1e6fd9;
  --shadow-color: rgba(30, 111, 217, 0.28);
  --primary-rgb: 30, 111, 217;
  --bg-primary: #ffffff;
  --bg-secondary: #f0f4fa;
  --text-primary: #0f172a;
  --text-secondary: #64748b;
  --text-white: #ffffff;
  --border-color: #e2e8f0;
  --success-color: #16a34a;
  --danger-color: #dc2626;
  --warning-color: #f59e0b;
  --info-color: #0ea5e9;

  /* 管理后台侧栏等与官网 Hero 同色系的纵向渐变 */
  --panel-sidebar-gradient: linear-gradient(165deg, #0c1e3a 0%, #143a72 52%, #1e6fd9 100%);
  --panel-brand-bar: rgba(0, 0, 0, 0.2);
  --panel-card-accent: linear-gradient(90deg, #ea580c 0%, #1e6fd9 100%);

  /* 现代界面：圆角、层次、导航与表单 */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 22px;
  --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-card: 0 1px 2px rgba(15, 23, 42, 0.05), 0 12px 32px rgba(15, 23, 42, 0.06);
  --shadow-card-hover: 0 2px 4px rgba(15, 23, 42, 0.06), 0 18px 40px rgba(30, 111, 217, 0.09);
  --navbar-bg: rgba(255, 255, 255, 0.78);
  --focus-ring: 0 0 0 3px rgba(var(--bs-primary-rgb), 0.22);
  --surface-border: rgba(15, 23, 42, 0.08);
}

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--light-bg);
  color: var(--text-primary);
  font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.55;
  letter-spacing: 0.01em;
}

/* 页面底纹：极淡网格 + 柔光，避免单调灰底 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(30, 111, 217, 0.09), transparent),
    radial-gradient(ellipse 60% 40% at 100% 0%, rgba(234, 88, 12, 0.05), transparent),
    linear-gradient(to bottom, var(--light-bg) 0%, var(--light-bg) 100%);
  background-size: 100% 100%, 100% 100%, auto;
}

/* 登录/注册页：略强调主色氛围 */
body.cs-auth-body::before {
  background-image:
    radial-gradient(ellipse 70% 45% at 20% 10%, rgba(30, 111, 217, 0.12), transparent),
    radial-gradient(ellipse 55% 40% at 100% 30%, rgba(56, 189, 248, 0.08), transparent),
    linear-gradient(160deg, #e8f0fc 0%, var(--light-bg) 45%, #f5f8fd 100%);
}

h1, .h1, h2, .h2, h3, .h3 {
  letter-spacing: -0.02em;
  font-weight: 600;
}

/* 卡片与面板 */
.card {
  border-radius: var(--radius-md);
  border: 1px solid var(--surface-border);
  box-shadow: var(--shadow-xs);
  background: var(--bg-primary);
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.card.shadow-sm {
  box-shadow: var(--shadow-card) !important;
}

.cs-surface.cs-elevated,
.cs-elevated {
  box-shadow: var(--shadow-card);
  border-color: rgba(15, 23, 42, 0.06);
}

.cs-surface:hover {
  border-color: rgba(var(--bs-primary-rgb), 0.18);
}

a.card:hover,
.card.cs-interactive:hover {
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(var(--bs-primary-rgb), 0.22);
}

/* Hero / 欢迎区 */
.cs-hero {
  position: relative;
  border-radius: var(--radius-lg) !important;
}

.cs-hero-accent {
  height: 4px;
  width: 100%;
  background: linear-gradient(90deg, var(--gradient-start), var(--gradient-mid) 45%, var(--accent-color) 100%);
  opacity: 0.95;
}

/* 页脚 */
.cs-footer {
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--surface-border) !important;
  color: var(--text-secondary);
}

.cs-footer .cs-footer-brand-link {
  color: inherit;
  font-weight: 500;
}

.cs-footer .cs-footer-brand-link:hover {
  color: var(--bs-primary, #1e6fd9);
}

/* 按钮：略扁、现代 */
.btn {
  border-radius: var(--radius-sm);
  font-weight: 500;
  letter-spacing: 0.01em;
  padding: 0.45rem 1rem;
}

.btn-lg {
  border-radius: var(--radius-md);
  padding: 0.55rem 1.25rem;
}

.btn-sm {
  padding: 0.28rem 0.65rem;
  font-size: 0.875rem;
  border-radius: 6px;
}

.btn-primary {
  box-shadow: 0 1px 2px rgba(var(--bs-primary-rgb), 0.22);
}

.btn-primary:hover {
  box-shadow: 0 4px 14px rgba(var(--bs-primary-rgb), 0.28);
}

.btn-outline-secondary {
  border-color: rgba(15, 23, 42, 0.14);
  color: var(--text-secondary);
}

.btn-outline-secondary:hover {
  border-color: rgba(15, 23, 42, 0.22);
  background: rgba(15, 23, 42, 0.04);
  color: var(--text-primary);
}

/* 表单 */
.form-control,
.form-select {
  border-radius: var(--radius-sm);
  border-color: rgba(15, 23, 42, 0.12);
  padding: 0.5rem 0.75rem;
}

.form-control:focus,
.form-select:focus {
  border-color: rgba(var(--bs-primary-rgb), 0.45);
  box-shadow: var(--focus-ring);
}

.form-label {
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* 表格：更清晰的分区 */
.table {
  --bs-table-bg: transparent;
}

.table thead th {
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: none;
  letter-spacing: 0.02em;
  color: var(--text-secondary);
  border-bottom-color: var(--surface-border);
  background: rgba(15, 23, 42, 0.03);
}

.table-hover > tbody > tr:hover {
  background-color: rgba(var(--bs-primary-rgb), 0.04);
}

.table-responsive.card {
  border-radius: var(--radius-md);
  overflow: hidden;
}

.table-light {
  --bs-table-bg: rgba(15, 23, 42, 0.03);
}

/* 侧栏菜单 pill */
.nav-pills .nav-link {
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-weight: 500;
}

.nav-pills .nav-link:hover {
  background: rgba(var(--bs-primary-rgb), 0.08);
  color: var(--primary-dark);
}

.nav-pills .nav-link.active {
  background: linear-gradient(135deg, rgba(var(--bs-primary-rgb), 0.14) 0%, rgba(var(--bs-primary-rgb), 0.22) 100%);
  color: var(--primary-dark) !important;
  box-shadow: inset 0 0 0 1px rgba(var(--bs-primary-rgb), 0.2);
}

/* Alert 软边 */
.alert {
  border-radius: var(--radius-sm);
  border: none;
  box-shadow: var(--shadow-xs);
}

/* Badge 略收紧 */
.badge {
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: 0.35em 0.55em;
}

/* 顶栏：玻璃感 + 细边 */
.navbar.cs-navbar {
  background: var(--navbar-bg) !important;
  backdrop-filter: blur(14px) saturate(1.15);
  -webkit-backdrop-filter: blur(14px) saturate(1.15);
  border-bottom: 1px solid var(--surface-border);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.65) inset;
}

.cs-brand-icon {
  width: 2rem;
  height: 2rem;
  background: linear-gradient(145deg, rgba(var(--bs-primary-rgb), 0.14), rgba(var(--bs-primary-rgb), 0.06));
  color: var(--primary-color);
  font-size: 1.15rem;
  box-shadow: inset 0 0 0 1px rgba(var(--bs-primary-rgb), 0.12);
}

.navbar-brand:hover .cs-brand-icon {
  background: linear-gradient(145deg, rgba(var(--bs-primary-rgb), 0.2), rgba(var(--bs-primary-rgb), 0.1));
}

/* 顶栏：用户下拉（右对齐）、登录名默认脱敏，悬停或菜单展开时显示完整 */
.navbar.cs-navbar .cs-nav-user-toggle {
  color: var(--primary-color) !important;
  font-weight: 500;
  border-radius: var(--radius-sm);
}

.navbar.cs-navbar .cs-nav-user-toggle::after {
  margin-left: 0.15rem;
  vertical-align: 0.12em;
}

.navbar.cs-navbar .cs-nav-user-avatar {
  width: 1.875rem;
  height: 1.875rem;
  font-size: 0.82rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0;
  user-select: none;
  color: var(--primary-color);
  background: rgba(var(--bs-primary-rgb), 0.12);
  box-shadow: inset 0 0 0 1px rgba(var(--bs-primary-rgb), 0.18);
}

.navbar.cs-navbar .cs-nav-user-ident {
  max-width: 12rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.navbar.cs-navbar .cs-nav-user-toggle:hover .cs-nav-user-ident,
.navbar.cs-navbar .cs-nav-user-toggle.show .cs-nav-user-ident,
.navbar.cs-navbar .cs-nav-user-toggle:focus-visible .cs-nav-user-ident {
  max-width: min(90vw, 22rem);
  white-space: normal;
  word-break: break-all;
}

.navbar.cs-navbar .cs-nav-user-ident .cs-nav-ident-full {
  display: none;
}

.navbar.cs-navbar .cs-nav-user-toggle:hover .cs-nav-ident-masked,
.navbar.cs-navbar .cs-nav-user-toggle.show .cs-nav-ident-masked,
.navbar.cs-navbar .cs-nav-user-toggle:focus-visible .cs-nav-ident-masked {
  display: none;
}

.navbar.cs-navbar .cs-nav-user-toggle:hover .cs-nav-ident-full,
.navbar.cs-navbar .cs-nav-user-toggle.show .cs-nav-ident-full,
.navbar.cs-navbar .cs-nav-user-toggle:focus-visible .cs-nav-ident-full {
  display: inline;
}

/* 用户下拉外观由 header.css 中 .cs-nav-user-menu 统一控制，与顶栏主色一致 */

/* 登录注册卡片顶上图标 */
.cs-auth-icon {
  width: 3rem;
  height: 3rem;
  background: linear-gradient(145deg, rgba(var(--bs-primary-rgb), 0.16), rgba(var(--bs-primary-rgb), 0.06));
  color: var(--primary-color);
  box-shadow: inset 0 0 0 1px rgba(var(--bs-primary-rgb), 0.12);
}

.cs-auth-icon i {
  font-size: 1.65rem;
  line-height: 1;
}

/* 后台主区卡片与公共页面工具条 */
.admin-main .card {
  border-radius: var(--radius-md);
  border-color: var(--surface-border);
  box-shadow: var(--shadow-card);
}