/* ========================================
 * 七七域名转发系统 v3.0 全局样式
 * 现代化UI设计 - 紫蓝渐变主题
 * ======================================== */

/* ====== CSS变量 ====== */
:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --primary-light: #818cf8;
  --secondary: #0ea5e9;
  --accent: #8b5cf6;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --bg: #f8fafc;
  --bg-card: #ffffff;
  --text: #1e293b;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 30px rgba(0,0,0,0.12);
  --radius: 10px;
  --radius-lg: 16px;
  --transition: all 0.25s ease;
}

/* ====== 基础重置与全局样式 ====== */
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.7;
  padding-top: 70px;
  transition: var(--transition);
}

a { color: var(--primary); transition: var(--transition); }
a:hover { color: var(--primary-dark); }
a:focus { outline: none; }

h1, h2, h3, h4, h5, h6 {
  color: var(--text);
  font-weight: 600;
  letter-spacing: -0.02em;
}

/* ====== 导航栏美化 ====== */
.navbar-default {
  background: linear-gradient(135deg, var(--primary), var(--accent)) !important;
  border: none !important;
  border-radius: 0 !important;
  box-shadow: 0 2px 15px rgba(99,102,241,0.3);
}
.navbar-default .navbar-brand,
.navbar-default .navbar-nav > li > a {
  color: #fff !important;
  font-weight: 500;
  padding: 18px 16px;
  transition: var(--transition);
}
.navbar-default .navbar-brand:hover,
.navbar-default .navbar-nav > li > a:hover,
.navbar-default .navbar-nav > li > a:focus {
  color: rgba(255,255,255,0.85) !important;
  background-color: rgba(255,255,255,0.08) !important;
  border-radius: var(--radius);
}
.navbar-default .navbar-brand {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.03em;
}
.navbar-default .navbar-toggle {
  border-color: rgba(255,255,255,0.3) !important;
}
.navbar-default .navbar-toggle:hover,
.navbar-default .navbar-toggle:focus {
  background-color: rgba(255,255,255,0.15) !important;
}
.navbar-default .icon-bar { background-color: #fff !important; }
.navbar-default .navbar-collapse { border-color: transparent !important; }

/* 下拉菜单 */
.dropdown-menu {
  margin-top: 8px !important;
  border: none !important;
  border-radius: var(--radius) !important;
  box-shadow: var(--shadow-lg) !important;
  overflow: hidden;
}
.dropdown-menu > li > a {
  padding: 10px 20px;
  transition: var(--transition);
  font-size: 14px;
}
.dropdown-menu > li > a:hover {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff !important;
}

/* ====== 面包屑导航 ====== */
.breadcrumb {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 12px 20px;
  box-shadow: var(--shadow);
  border: none;
  margin-bottom: 24px;
}
.breadcrumb li a { color: var(--primary); }
.breadcrumb > .active { color: var(--text-muted); font-weight: 500; }

/* ====== 首页样式 ====== */
.home-hero {
  padding: 80px 20px 60px;
  text-align: center;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 50%, #ec4899 100%);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.home-hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.06) 1px, transparent 1px);
  background-size: 30px 30px;
  animation: floatBg 20s linear infinite;
}
@keyframes floatBg {
  0% { transform: translateY(0); }
  100% { transform: translateY(-30px); }
}
.home-hero h2 {
  color: #fff;
  font-size: 42px;
  font-weight: 800;
  margin-bottom: 16px;
  position: relative;
  letter-spacing: -0.04em;
}
.home-hero p {
  font-size: 18px;
  opacity: 0.9;
  max-width: 560px;
  margin: 0 auto 36px;
  position: relative;
}
.home-hero .btn-cta {
  display: inline-block;
  padding: 14px 40px;
  background: rgba(255,255,255,0.95);
  color: var(--primary);
  border-radius: 50px;
  font-weight: 600;
  font-size: 16px;
  text-decoration: none;
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
  position: relative;
}
.home-hero .btn-cta:hover {
  background: #fff;
  color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.2);
}

/* 首页特性卡片 */
.feature-grid {
  padding: 60px 0;
}
.feature-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid var(--border);
  height: 100%;
  margin-bottom: 24px;
}
.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.feature-icon {
  width: 64px;
  height: 64px;
  border-radius: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin-bottom: 20px;
  color: #fff;
}
.feature-icon.icon-purple { background: linear-gradient(135deg, var(--primary), var(--accent)); }
.feature-icon.icon-blue { background: linear-gradient(135deg, var(--secondary), #06b6d4); }
.feature-icon.icon-green { background: linear-gradient(135deg, var(--success), #34d399); }
.feature-icon.icon-orange { background: linear-gradient(135deg, var(--warning), #fbbf24); }
.feature-card h4 {
  font-size: 18px;
  margin-bottom: 10px;
}
.feature-card p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.7;
}

/* ====== 登录/注册表单 ====== */
.auth-wrapper {
  min-height: calc(100vh - 70px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
  background: linear-gradient(135deg, #eef2ff 0%, #faf5ff 100%);
}
.auth-box {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  width: 100%;
  max-width: 420px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.auth-box::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent));
}
.auth-box legend {
  font-size: 24px;
  font-weight: 700;
  text-align: center;
  color: var(--text);
  border: none;
  padding-bottom: 8px;
  margin-bottom: 28px;
  width: 100%;
}
/* ====== 全局输入框增强 ====== */
.form-login .form-control,
.form-horizontal .form-control {
  border-radius: 8px;
  border: 2px solid var(--border);
  padding: 14px 18px;
  font-size: 15px;
  transition: var(--transition);
  background: var(--bg);
  min-height: 48px; /* 统一最小高度 */
}
.form-login .form-control:focus,
.form-horizontal .form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(99,102,241,0.1);
  background: #fff;
}

/* textarea 文本域增强 */
textarea.form-control {
  min-height: 120px;
  resize: vertical;
}

/* select 下拉选择器增强 */
select.form-control {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748b' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 38px;
}
.input-group-addon {
  border-radius: 8px 0 0 8px !important;
  border: 2px solid var(--border) !important;
  border-right: none !important;
  background: var(--bg);
  color: var(--text-muted);
  transition: var(--transition);
}
.input-group .form-control {
  border-left: none;
  border-radius: 0 8px 8px 0 !important;
}
.input-group .form-control:focus + .input-group-btn .btn,
.input-group:focus-within .input-group-addon {
  border-color: var(--primary) !important;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark)) !important;
  border: none !important;
  border-radius: 8px !important;
  padding: 11px 24px;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: var(--transition) !important;
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 15px rgba(99,102,241,0.35) !important;
}
.btn-info {
  background: var(--secondary) !important;
  border-color: var(--secondary) !important;
  border-radius: 8px !important;
  color: #fff !important;
}
.btn-info:hover {
  background: #0284c7 !important;
  transform: translateY(-1px);
}
.btn-success {
  background: var(--success) !important;
  border: none !important;
  border-radius: 8px !important;
}
.btn-danger {
  background: var(--danger) !important;
  border: none !important;
  border-radius: 8px !important;
}
.btn-default {
  border-radius: 8px !important;
  border: 2px solid var(--border) !important;
  background: var(--bg-card) !important;
  color: var(--text) !important;
  font-weight: 500;
  transition: var(--transition) !important;
}
.btn-default:hover {
  border-color: var(--primary) !important;
  color: var(--primary) !important;
  background: #fff !important;
}

/* ====== Panel卡片美化 ====== */
.panel {
  border: none;
  border-radius: var(--radius-lg) !important;
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: var(--transition);
}
.panel:hover { box-shadow: var(--shadow-md); }
.panel-primary .panel-heading,
.panel-info .panel-heading,
.panel-default .panel-heading {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border: none;
  padding: 18px 22px;
}
.panel-primary .panel-title,
.panel-info .panel-title,
.panel-default .panel-title {
  color: #fff;
  font-weight: 600;
  font-size: 16px;
  margin: 0;
}
.panel-body { padding: 24px; }
.panel .list-group-item {
  border: none;
  border-bottom: 1px solid var(--border);
  padding: 14px 20px;
  font-size: 14px;
  transition: var(--transition);
}
.panel .list-group-item:last-child { border-bottom: none; }
.panel .list-group-item:hover { background: var(--bg); }
.panel .list-group-item.active {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border: none;
  color: #fff;
  font-weight: 600;
}

/* ====== 表格美化 ====== */
.table-responsive {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.table-hover > tbody > tr:hover {
  background: #f0f0ff;
  transition: var(--transition);
}
.table thead th {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  font-weight: 600;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: none;
  padding: 14px 16px;
}
.table tbody td {
  vertical-align: middle;
  padding: 13px 16px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}
.table tbody tr:last-child td { border-bottom: none; }

/* 按钮尺寸统一 */
.btn-xs { border-radius: 6px !important; font-weight: 500; font-size: 12px; padding: 4px 10px; }
.btn-sm { border-radius: 8px !important; font-weight: 500; }

/* ====== 侧边栏列表组 ====== */
.list-group {
  border-radius: var(--radius-lg) !important;
  overflow: hidden;
  box-shadow: var(--shadow);
}
.list-group-item {
  border: none !important;
  border-bottom: 1px solid var(--border) !important;
  padding: 14px 20px;
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition);
  cursor: pointer;
}
.list-group-item:not(.active):hover {
  background: var(--bg);
  color: var(--primary);
  padding-left: 26px;
}
.list-group-item.active {
  background: linear-gradient(135deg, var(--primary), var(--accent)) !important;
}
.list-group-item:last-child { border-bottom: none !important; }

/* ====== Alert提示框 ====== */
.alert {
  border: none !important;
  border-radius: var(--radius) !important;
  padding: 14px 20px;
  font-size: 14px;
  box-shadow: var(--shadow);
  margin-bottom: 20px;
  transition: var(--transition);
}
.alert-warning {
  background: linear-gradient(135deg, #fef3c7, #fde68a);
  color: #92400e;
}
.alert-success {
  background: linear-gradient(135deg, #d1fae5, #a7f3d0);
  color: #065f46;
}
.alert-danger {
  background: linear-gradient(135deg, #fee2e2, #fecaca);
  color: #991b1b;
}
.alert-info {
  background: linear-gradient(135deg, #dbeafe, #bfdbfe);
  color: #1e40af;
}

/* ====== Modal弹窗 ====== */
.modal-content {
  border: none !important;
  border-radius: var(--radius-lg) !important;
  box-shadow: var(--shadow-lg);
}
.modal-header {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border: none;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  padding: 18px 24px;
}
.modal-title { color: #fff; font-weight: 600; }
.modal-header .close { color: #fff !important; opacity: 0.8; text-shadow: none; }
.modal-header .close:hover { opacity: 1; }

/* ====== 分页 ====== */
.pagination > li > a,
.pagination > li > span {
  border: none !important;
  color: var(--text-muted);
  padding: 10px 16px;
  margin: 0 3px;
  border-radius: 8px !important;
  font-weight: 500;
  transition: var(--transition);
}
.pagination > li > a:hover {
  background: var(--bg) !important;
  color: var(--primary);
  transform: translateY(-1px);
}
.pagination > .active > a,
.pagination > .active > span {
  background: linear-gradient(135deg, var(--primary), var(--accent)) !important;
  color: #fff !important;
  box-shadow: 0 2px 10px rgba(99,102,241,0.3);
}
.pagination > .disabled > a,
.pagination > .disabled > span {
  opacity: 0.4;
  cursor: not-allowed;
}

/* ====== 页脚 ====== */
footer.container {
  margin-top: 50px;
  padding: 30px 0 !important;
  color: var(--text-muted) !important;
  font-size: 13px;
}
hr { border-top: 1px solid var(--border); }

/* ====== 标签/徽章 ====== */
.label {
  border-radius: 6px !important;
  padding: 4px 12px !important;
  font-weight: 500 !important;
  font-size: 12px !important;
  letter-spacing: 0.02em;
}
.label-success { background: var(--success) !important; }
.label-warning { background: var(--warning) !important; color: #78350f !important; }
.label-danger { background: var(--danger) !important; }
.label-info { background: var(--secondary) !important; }
.label-default { background: var(--border) !important; color: var(--text-muted) !important; }

/* ====== 表单帮助文本 ====== */
.help-block {
  color: var(--text-muted);
  font-size: 13px;
  margin-top: 6px;
}

/* ====== Breadcrumb面包屑修复 ====== */
.breadcrumb > li + li:before {
  content: "\203A" !important;
  color: var(--primary);
  font-weight: 700;
}

/* ====== 侧边栏说明面板 ====== */
.side-panel {
  position: sticky;
  top: 80px;
}

/* ====== 动画 ====== */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.animate-in {
  animation: fadeInUp 0.5s ease forwards;
}

/* ====== 响应式增强 ====== */
@media (max-width: 768px) {
  .home-hero h2 { font-size: 28px; }
  .home-hero p { font-size: 15px; }
  .auth-box { padding: 32px 24px; }
  .feature-card { padding: 24px 18px; }
  body { padding-top: 60px; }
  .container { padding-left: 15px; padding-right: 15px; }
}

/* ====== 滚动条美化 ====== */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #94a3b8; }

/* ====== 选择文字颜色 ====== */
::selection { background: var(--primary); color: #fff; }