/* ==================================================================
   清树工具站 · 仿 Hyper(Bootstrap5) 风格
   ================================================================== */

:root {
  --primary: #727cf5;
  --success: #0acf97;
  --danger: #fa5c7c;
  --secondary: #6c757d;
  --muted: #98a6ad;
  --border: #dee2e6;
  --text: #6c757d;
  --dark: #313a46;
  --shadow: 0 0 35px 0 rgba(154, 161, 171, .15);
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  font-family: Nunito, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.5;
  color: var(--text);
  background: #f4f6f9;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--primary); text-decoration: none; }
a:hover { color: #555ff0; }
img { max-width: 100%; vertical-align: middle; }
button, input, optgroup, select, textarea { font-family: inherit; }
ul { list-style: none; }

/* ---------------- 盒式布局 ---------------- */
.wrapper {
  max-width: 1320px;
  margin: 0 auto;
  background: #fff;
  min-height: 100vh;
  position: relative;
  box-shadow: 0 0 24px rgba(154, 161, 171, .18);
}
.content-page { padding: 0 0 78px; }
.content { padding: 0; }

/* ---------------- 顶部 Logo 行 ---------------- */
.navbar-custom {
  position: relative;
  background: #fff;
  box-shadow: var(--shadow);
  height: 70px;
  z-index: 50;
}
.navbar-custom .container-fluid {
  height: 70px;
  display: flex;
  align-items: center;
}
.topnav-logo {
  display: inline-flex;
  align-items: center;
  height: 70px;
  padding: 0 12px;
}
.topnav-logo img,
.topnav-logo svg { height: 34px; width: auto; display: block; }
.topnav-logo-sm { display: none; }

.topbar-right-menu { margin-left: auto; display: flex; align-items: center; }
.notification-list .nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 6px;
  color: var(--muted);
  font-size: 20px;
  cursor: pointer;
}
.notification-list .nav-link:hover { color: var(--primary); background: #f4f6f9; }

/* 移动端菜单按钮 */
.navbar-toggle {
  display: none;
  width: 38px;
  height: 34px;
  margin-left: auto;
  cursor: pointer;
}
.navbar-toggle .lines span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--dark);
  margin: 5px auto;
  border-radius: 2px;
}

/* ---------------- 导航菜单行（深色横条） ---------------- */
.topnav {
  background: #37404a;
  box-shadow: 0 2px 8px rgba(55, 64, 74, .18);
}
.topnav .container-fluid { padding-top: 6px; padding-bottom: 6px; }
.navbar-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
}
.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 9px 18px;
  margin: 0 2px;
  color: rgba(255, 255, 255, .62);
  font-size: 15px;
  font-weight: 500;
  border-radius: 6px;
  transition: color .18s, background .18s;
}
.nav-link svg { width: 18px; height: 18px; margin-right: 7px; opacity: .85; }
.nav-link:hover {
  color: #fff;
  background: rgba(255, 255, 255, .08);
}
.nav-link:hover svg { opacity: 1; }
.nav-link.active {
  color: #fff;
  font-weight: 600;
  background: rgba(255, 255, 255, .1);
}
.nav-link.active svg { opacity: 1; }

/* ---------------- 搜索框 ---------------- */
.searchbox {
  position: absolute;
  left: 0;
  right: 0;
  top: -100px;
  z-index: 40;
  background: rgba(255, 255, 255, .96);
  padding: 18px 20%;
  box-shadow: var(--shadow);
  transition: top .4s ease;
}
.searchbox.searchshow { top: 70px; }
.search-group { display: flex; }
.search-input {
  flex: 1;
  height: 48px;
  padding: 6px 14px;
  color: #888;
  border: 1px solid #ddd;
  border-right: none;
  border-radius: 4px 0 0 4px;
  font-size: 16px;
  outline: none;
}
.search-btn {
  width: 56px;
  height: 48px;
  border: 1px solid #343a40;
  background: #343a40;
  color: #fff;
  border-radius: 0 4px 4px 0;
  cursor: pointer;
  font-size: 18px;
}
.search-results {
  margin-top: 10px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
}
.search-results a {
  display: block;
  padding: 10px 14px;
  color: var(--text);
  font-size: 15px;
  border-bottom: 1px solid #f0f1f4;
}
.search-results a:last-child { border-bottom: none; }
.search-results a:hover { background: #f4f6f9; color: var(--primary); }
.search-results .sr-desc { color: var(--muted); font-size: 13px; margin-left: 10px; }

/* ---------------- 栅格 ---------------- */
.container-fluid { width: 100%; padding: 0 24px; }
.mt-3 { margin-top: 16px; }
.mb-3 { margin-bottom: 16px; }
.row { display: flex; flex-wrap: wrap; margin: 0 -12px; }
[class*="col-"] { padding: 0 12px; width: 100%; }
.col-12 { flex: 0 0 100%; max-width: 100%; }
@media (min-width: 576px) {
  .col-sm-6 { flex: 0 0 50%; max-width: 50%; }
}
@media (min-width: 768px) {
  .col-md-4 { flex: 0 0 33.3333%; max-width: 33.3333%; }
  .col-md-6 { flex: 0 0 50%; max-width: 50%; }
  .col-md-12 { flex: 0 0 100%; max-width: 100%; }
}
@media (min-width: 992px) {
  .col-lg-3 { flex: 0 0 25%; max-width: 25%; }
  .col-lg-4 { flex: 0 0 33.3333%; max-width: 33.3333%; }
}
@media (min-width: 1200px) {
  .col-xl-3 { flex: 0 0 25%; max-width: 25%; }
}

/* ---------------- 卡片 ---------------- */
.card {
  background: #fff;
  border: none;
  border-radius: 4px;
  box-shadow: var(--shadow);
  margin-bottom: 24px;
}
.card-body { padding: 24px; }

/* ---------------- 标题 / 文字 ---------------- */
h2 { font-size: 30px; font-weight: 700; color: var(--secondary); margin: 10px 0; }
h3 { font-size: 24px; font-weight: 400; line-height: 1.3; }
.text-center { text-align: center; }
.font-weight-normal { font-weight: 400; }
.font-weight-bold { font-weight: 700; }
.mt-0 { margin-top: 0; }
.text-danger { color: var(--danger) !important; }
.text-secondary { color: var(--secondary) !important; }
.float-right { float: right; }
.text-md-right { text-align: right; }

/* ---------------- 表单 ---------------- */
.form-group { margin-bottom: 16px; }
.form-group label {
  display: block;
  font-size: 16px;
  font-weight: 600;
  color: var(--secondary);
  margin-bottom: 8px;
}
.form-control {
  display: block;
  width: 100%;
  padding: 7.2px 14.4px;
  font-size: 14.4px;
  line-height: 1.6;
  color: var(--secondary);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 4px;
  resize: vertical;
  transition: border-color .15s, box-shadow .15s;
}
.form-control:focus {
  outline: none;
  border-color: #abb3f8;
  box-shadow: 0 0 0 3px rgba(114, 124, 245, .15);
}
textarea.form-control { min-height: auto; }
.form-control::placeholder { color: #adb5bd; }
.form-control.mono {
  font-family: Consolas, "SFMono-Regular", Menlo, "Courier New", monospace;
}

/* ---------------- 按钮 ---------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 7.2px 14.4px;
  font-size: 14.4px;
  font-weight: 400;
  line-height: 1.5;
  border: 1px solid transparent;
  border-radius: 2.4px;
  cursor: pointer;
  transition: all .15s;
  user-select: none;
}
.btn:active { transform: translateY(1px); }
.btn svg { width: 15px; height: 15px; }

.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background: #555ff0; border-color: #555ff0; color: #fff; }

.btn-success { background: var(--success); border-color: var(--success); color: #fff; }
.btn-success:hover { background: #08b887; border-color: #08b887; color: #fff; }

.btn-danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn-danger:hover { background: #f23f64; border-color: #f23f64; color: #fff; }

.btn-outline-primary {
  background: transparent;
  border-color: var(--primary);
  color: var(--primary);
}
.btn-outline-primary:hover { background: var(--primary); color: #fff; }

.btn-outline-success {
  background: transparent;
  border-color: var(--success);
  color: var(--success);
}
.btn-outline-success:hover { background: var(--success); color: #fff; }

.btn-outline-danger {
  background: transparent;
  border-color: var(--danger);
  color: var(--danger);
}
.btn-outline-danger:hover { background: var(--danger); color: #fff; }

.btn-outline-secondary {
  background: transparent;
  border-color: #9aa1ac;
  color: #6c757d;
}
.btn-outline-secondary:hover { background: #6c757d; border-color: #6c757d; color: #fff; }

.btn-outline-dark {
  background: transparent;
  border-color: #343a40;
  color: #343a40;
}
.btn-outline-dark:hover { background: #343a40; color: #fff; }

.btn-sm { padding: 4px 10px; font-size: 12.8px; border-radius: 2px; }
.mr-1 { margin-right: 4px; }
.mr-2 { margin-right: 8px; }
.mx-1 { margin-left: 4px; margin-right: 4px; }
.m-0 { margin: 0; }
.px-2 { padding-left: 8px; padding-right: 8px; }
.py-1 { padding-top: 4px; padding-bottom: 4px; }
.flex-fill { flex: 1 1 auto; }
.rounded-0 { border-radius: 0; }
.d-flex { display: flex; }
[hidden] { display: none !important; }

/* ---------------- 首页工具卡片 ---------------- */
.snow-tool { display: block; }
.snow-tool-img {
  float: left;
  width: 72px;
  height: 72px;
  object-fit: contain;
  margin-right: 8px;
}
.snow-tool-body { padding-left: 72px; min-height: 72px; }
.snow-tool-body h3 { margin-bottom: 4px; }
.snow-tool-body h3 a {
  color: var(--primary);
  font-size: 24px;
}
.snow-tool-body h3 a:hover { color: #555ff0; }
.snow-tool-body p {
  font-size: 16px;
  color: var(--secondary);
  margin: 0 0 8px;
}
.snow-tool-elp {
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.tool-box {
  background: #fff;
  border: 1px solid var(--border);
  padding: 8px;
  height: 100%;
  transition: border-color .2s, box-shadow .2s;
}
.tool-box:hover {
  border-color: var(--primary);
  box-shadow: 0 4px 14px rgba(114, 124, 245, .14);
}

/* ---------------- 二维码结果网格 ---------------- */
.qr-border {
  border: 1px solid var(--border);
  background: #fff;
  margin-bottom: 20px;
}
/* 好码：绿色对号；废码：红色 X（两态互斥） */
.qr-border.good { border: 2px solid var(--success); }
.qr-border.bad  { border: 2px solid var(--danger); }
.qr-border.good .qr-head { border-bottom: 1px solid var(--success); }
.qr-border.bad  .qr-head { border-bottom: 1px solid var(--danger); }
.qr-head {
  position: relative;
  padding: 4px 8px;
  margin: 0;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
  color: var(--secondary);
  min-height: 31px;
}
/* 验证码标签：标题栏居中，点击复制 */
.qr-code {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: #fff7e6;
  border: 1px solid #ffd591;
  color: #d46b08;
  border-radius: 3px;
  padding: 1px 10px;
  font-size: 13px;
  line-height: 1.6;
  white-space: nowrap;
  cursor: pointer;
  user-select: none;
  transition: background .15s, border-color .15s;
}
.qr-code:hover { background: #ffe7ba; border-color: #fa8c16; }
.qr-code b { font-size: 14px; font-weight: 700; letter-spacing: 1px; }
@media (max-width: 575.98px) {
  .qr-code { position: static; transform: none; margin-left: 8px; }
}
.qr-head a { color: var(--secondary); }
.qr-head a:hover { color: var(--primary); }
/* 标题栏的好码/废码标记（箭头所指位置） */
.qr-mark { display: none; margin-left: 8px; font-weight: 700; font-size: 13px; }
.qr-border.good .qr-mark { display: inline; color: var(--success); }
.qr-border.bad  .qr-mark { display: inline; color: var(--danger); }
.qr-border.good .qr-mark::before { content: "✓ 好码"; }
.qr-border.bad  .qr-mark::before { content: "✕ 废码"; }
.qr-img { width: 100%; display: block; transition: opacity .2s; }
/* 二维码图片容器：用于定位标记覆盖层 */
.qr-img-wrap { position: relative; }
/* 标记后二维码本身变淡（不用白色遮罩盖住，避免文字发虚） */
.qr-border.good .qr-img,
.qr-border.bad .qr-img { opacity: .15; }
/* 标记覆盖层：透明背景，图标和文字直接叠在变淡的二维码上 */
.qr-overlay {
  position: absolute;
  inset: 0;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  z-index: 2;
}
.qr-border.good .qr-overlay,
.qr-border.bad .qr-overlay { display: flex; }
/* 覆盖层图标（圆形 + SVG 对号/叉号） */
.qr-overlay-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}
.qr-overlay-icon svg { width: 34px; height: 34px; display: none; }
.qr-border.good .qr-overlay-icon {
  background: #00a651;
  box-shadow: 0 4px 14px rgba(0, 166, 81, .45);
}
.qr-border.good .qr-overlay-icon .icon-check { display: block; }
.qr-border.bad .qr-overlay-icon {
  background: var(--danger);
  box-shadow: 0 4px 14px rgba(255, 77, 79, .4);
}
.qr-border.bad .qr-overlay-icon .icon-close { display: block; }
/* 覆盖层文字：纯色实心，叠在变淡二维码上清晰可见 */
.qr-overlay-text {
  font-size: 28px;
  font-weight: 900;
  letter-spacing: 4px;
}
.qr-border.good .qr-overlay-text { color: #00a651; }
.qr-border.bad .qr-overlay-text { color: var(--danger); }
.qr-border.good .qr-overlay-text::before { content: "好码"; }
.qr-border.bad .qr-overlay-text::before { content: "废码"; }
.qr-actions { display: flex; border-top: 1px solid var(--border); }
.qr-border.good .qr-actions { border-top: 1px solid var(--success); }
.qr-border.bad  .qr-actions { border-top: 1px solid var(--danger); }
/* 选中的按钮变实心 */
.qr-border.good .btn-good { background: var(--success); border-color: var(--success); color: #fff; }
.qr-border.bad  .btn-bad  { background: var(--danger);  border-color: var(--danger);  color: #fff; }

#qrcode:empty::before {
  content: "在上方输入内容，点击「生成」按钮，二维码将显示在这里";
  display: block;
  text-align: center;
  color: #adb5bd;
  padding: 46px 10px;
  font-size: 14.5px;
}

.zip-bar {
  display: none;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  background: #eefaff;
  border: 1px solid #b8efe2;
  color: #0a9e74;
  padding: 12px 16px;
  border-radius: 4px;
  margin-bottom: 18px;
  font-size: 14.5px;
}
.zip-bar.show { display: flex; }
.zip-bar .zip-title { font-weight: 700; }

/* ---------------- 页脚 ---------------- */
.footer {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 20px 24px;
  font-size: 13.5px;
  color: var(--muted);
  border-top: 1px solid #f0f1f4;
  background: #fff;
}
.footer a { color: var(--muted); margin-left: 4px; }
.footer a:hover { color: var(--primary); }
.footer-links a { margin-left: 0; margin-right: 16px; }

/* ---------------- 顶部通知（仿 NotificationApp top-center） ---------------- */
.notify-container {
  position: fixed;
  top: 84px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  pointer-events: none;
}
.notify {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: 4px;
  background: rgba(33, 33, 33, .88);
  color: #fff;
  font-size: 14px;
  box-shadow: 0 6px 24px rgba(0, 0, 0, .25);
  opacity: 0;
  transform: translateY(-10px);
  transition: opacity .25s, transform .25s;
}
.notify.show { opacity: 1; transform: translateY(0); }
.notify.success { background: rgba(10, 207, 151, .92); }
.notify.error { background: rgba(250, 92, 124, .92); }

/* ---------------- 移动端 ---------------- */
@media (max-width: 991.98px) {
  .navbar-toggle { display: block; }
  .topnav .container-fluid { padding: 0 24px; }
  #topnav-menu-content {
    display: none;
    position: absolute;
    top: 70px;
    left: 12px;
    right: 12px;
    background: #37404a;
    border-radius: 0 0 6px 6px;
    box-shadow: 0 10px 24px rgba(55, 64, 74, .28);
    z-index: 60;
    padding: 8px;
  }
  #topnav-menu-content.open { display: block; }
  .navbar-nav { flex-direction: column; align-items: stretch; }
  .nav-link { padding: 11px 14px; margin: 2px 0; }
  .topnav-logo-lg { display: none; }
  .topnav-logo-sm { display: inline-flex; }
  .searchbox { padding: 16px 16px; }
}
@media (max-width: 575.98px) {
  .container-fluid { padding: 0 14px; }
  .snow-tool-body { padding-left: 72px; }
  .footer .text-md-right { text-align: left; margin-top: 6px; }
  h2 { font-size: 24px; }
}